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Sublimation

Sublimation isn’t something we’ve touched on too much in this blog (by the way, sorry for the lapse between posts) but here’s a video that’s pretty interesting.

Info about creating films for exposing your art

Why an Inkjet to Output Films?
The concept behind inkjets will be familiar to most readers: ink gets squirted out of nozzles located within the print head, which distribute the ink across the page as it is fed through the printer. It’s less well known, though, that the technology itself can be broken down into two common types: thermal and piezo.
Although both distribute ink in a similar fashion, the difference lies in how they transfer the ink to the page. In thermal inkjets, the nozzles located inside the print head are heated to create a vapor bubble which forces a droplet of ink onto the paper. Due to the nature of the ink transferal method, many manufacturers refer to these types of inkjet printers as bubble jets. Manufactures producing bubble jets include HP, Canon and Lexmark.
In contrast, piezo printers squirt pressurized ink through the nozzles by charging the piezo crystal located behind the nozzles in the print head with electricity. Piezo crystals vibrate when charged with electricity and this, in turn, pulls and then pushes the ink within the nozzle. By varying the strength of the electrical charges, the technology causes different-sized ink droplets to break away from the nozzle. Also called the vibration method, the technology was patented by Epson and is consequently used in its range of inkjet printers.
FastRIP™
This is a PostScript interpreter called a Raster Image Processor or RIP. Without PostScript it is impossible to print high-quality halftone dots on a “non-PostScript” inkjet printer such as an Epson 2200 or 4000. Even if your printer has PostScript, it may not be able to print halftone dots because PostScript is often just used to calibrate and balance colors on an inkjet. The Epson “RIP” does not print halftone dots! FastRIP™ does!

Plotters
A plotter is a vector graphics printing device that connects to a computer. Plotters print or cut their output by moving a pen/knife across the surface of a piece of paper or film. This means that plotters are restricted to line art, rather than raster graphics as with other printers. They can draw complex line art, including text, but do so very slowly because of the mechanical movement of the pen/knife. (Plotters are incapable of creating a solid region of color by pen)
When computer memory was very expensive, and processor power was very slow, this was often the fastest way to produce color high-resolution vector-based artwork, or very large drawings efficiently. Plotters coupled with a hand-cut water soluble film that is weeded out in a negative form after cutting then applied to a screen, this is but one option to a printer that’s already doing vinyl signs.

In addition to this blog you can learn more info about screen printing here as well as sign up to take a comprehensive class about screen printing and get one on one instruction and learn from the pros.

Introduction to art terms

JPEG

The term actually stands for “Joint Photographic Experts Group,” because that is the name of the committee that developed the format. But you don’t have to remember that because even computer nerds will think you’re weird if you mention what JPEG stands for. Instead, remember that a JPEG is a compressed image file format. JPEG images are not limited to a certain amount of color, like GIF images are. Therefore, the JPEG format is best for compressing photographic images. So if you see a large, colorful image on the Web, it is most likely a JPEG file.

While JPEG images can contain colorful, high-resolution image data, it is a lossy format, which means some quality is lost when the image is compressed. If the image is compressed too much, the graphics become noticeably “blocky” and some of the detail is lost. Like GIFs, JPEGs are cross platform, meaning the same file will look the same on both a Mac and PC.

GIF

Both GIF and JPEG images are widely used on the Web and are supported by all Web browsers and other Web software. The choice is usually a simple one. Charts, screen shots and technical drawings are compressed best as GIFs, and GIFs only hold up to 256 colors (8-bit color). Most all photographs are better as a JPEG, which supports 24-bit color and has the option of several compression levels (the choice depends on how much degradation you can tolerate). If you save a scanned image in both formats, you may see a dramatic difference in file size between them.

BMP

BMP (short for bitmap) is a graphic format used internally by the Microsoft Windows graphics subsystem, and used commonly as a simple graphics file format on that platform. BMP files are usually not compressed, so they are typically much larger than compressed image file formats such as JPEG or PNG. Despite its shortcomings, the simplicity of BMP and its widespread use in Microsoft Windows and elsewhere, as well as the fact that this format is well-documented and free of patents, makes it a very common format. As such, many image programs are likely to be able to read in BMP files.

SPOT COLORS

A spot color is a specially mixed ink that is applied on the printing press, as opposed to a mix of the four inks which make up process printing. Spot colors can be produced in a much more vibrant range of colors, and can have special characteristics which aren’t available in process inks, such as day-glow or metallic ink. Because they only use one screen, spot colors can reduce the cost of printing if you limit your ink choices to black and one spot color. For example, if you choose to print a red and black logo in process inks, you will actually need three inks on three screens (with associated , etc): Magenta, Yellow, and Black.

However, if you are already printing a full-color piece, adding a spot color will dramatically increase the cost of printing. You will add one more color to the four colors needed to produce, for example color photographs. It then is a five-color job requiring five inks, five screens, five positives, etc. Many companies make spot colors, but the most popular is Pantone, Inc. They not only make and sell inks, but they have a process which enables printers to mix the exact same colors from a set of base inks

The 8 Key elements in screen printing

1.    Artwork:
The artwork you start art with is important. If you have jagged or grainy artwork, you will reproduce have jagged or grainy artwork REMEMBER; Garbage in-garbage out. Programs for doing art in-house are available or there are art services on the internet that will supply you will screen printing artwork. If you fax them a logo, they can redraw it for you and send you a file in which you can use for the making of screens.

If you can draw the artwork yourself, it is wise to use a vector art program like SmartDesign which is a Corel Draw supplementary program. This quick and easy tool ensures that you will have high quality artwork in the end in less than half the time. Photoshop can be used as well, but this is more for full color printing, etc., which is not good to start out with since there are special techniques to master before moving into this realm.

2.    Film Positives:
When you have artwork that is ready to print, you can print your artwork out on a clear film instead of paper. For every color you have, you will print it out as a black plate on a separate film. For example, if you have a logo that is Red & Black, you would separate the two colors from themselves and print each out, changing the red to black and printing and then printing the black. Each of these would be printed on their own film by a printer, inkjets have made great strides and coupled with a RIP program have made actual cameras and darkrooms almost obsolete.

This is simply known as art separations. If the colors are touching in the final version of the logo, then you need to have what is called trap or choke. Basically, it’s an overlapping of the artwork by a small margin. This small margin is just enough so you can register the colors so there is no space between them. On the films, you will also place registration marks. These marks usually are a circle with a vertical and horizontal line passing through it. These marks will be on the same spot on each film. This will help you register your colors later it’s also a good idea to include center marks so the design will be dead center on the platen.

3. Screen Making:
When screen printing began it was called silk screening. The reason for this is, the screens used to be made from silk. Since this is no longer the case (now they are made from polyester), the name changed. A screen is simply a wooden or metal frame that has a fine mesh stretched over and attached to it. Some examples would be 83, 110, 125, 200, 230 and so on with various numbers in between. The lower the mesh count, the less detail you can print and the thicker the ink lays down. Choosing the proper mesh for the job is art form, in time you’ll learn through testing and results. It’s always a good idea to keep production records for consistency from the beginning of every job.

The actual process of screen making is quite simple, just time consuming, the most
common technique is using a light sensitive liquid emulsion although Capillary film is stilled used. Emulsion can be used under a yellow light so that you still can see what you are doing, but the UV light is filtered out so as not to effect the emulsion. A scoop coater is needed. You pour emulsion into the scoop coater and place it on a vertical screen. Pressing up against the screen and pulling up, you will lay a thin layer of emulsion on the outside of the screen. Turn the screen around and do the same for the inside of the screen. Emulsion thickness EQUALS ink thickness. For thicker stencils it’s a good idea to dry between coatings.

Once the emulsion dries, you can “expose” the screen. You need a good light source for this process. The exposure unit is basically a box with a glass top and a lid that has a compression lid or a rubber blanket and a vacuum frame. The light source would be contained in this box. To expose a screen, taking the film positive you created and place it on the glass top with the right reading being up. Then take the dried screen and place it on the glass top with the film positive under it. The screen mesh will be touching the film positive. When you close the lid, the compression lid presses the foam against the screen and the positive providing contact

At this point, the length of time will be dependent on your emulsion and light source. This is something you can talk to your supplier about. It’s really a matter of testing. Most problems occur in this stage, so it is critical that you understand this process through testing, training and trial and error. The better you are in this area, the better your prints will be. For a black light unit a 5 to 3 minute exposure time is the norm but will vary as already mentioned due to emulsion thickness and mesh count.

Once the image is exposed into your emulsion, you can take the screen to a washout booth lightly spray both sides of the screen with water. A garden hose with a sprayer on the end works well for this procedure. You do not want a lot of pressure but you do want some. After waiting for a minute, you can go back and begin spraying your screen with water. Spray on the outside of the frame, or the side that was touching the film. The inside will naturally be softer because the light had to shine through the emulsion to get to that side. A good exposure will yield less scum (softness) on the inside.

As you spray down the screen, you will see the image on your screen. What happened is, wherever there was black on your film, the light did not shine through. Since the light could not expose the emulsion, it remained water soluble. Wherever the light shine through the emulsion, it hardened and will not wash away. Lay out newsprint and pat the inside (squeegee side) with one sheet, DO NOT wipe then let the screen(s) dry. You will want to check for pinholes (little holes caused but dust, dirt) and block out with emulsion or a commercial blocking agent, then dry. After the screen has completely dried expose again (post –hardening) for a longer lasting stencil. This can be done in your exposure unit or out in the bright sun.

4.    Printing Press:
Choosing a printing press is as critical, although you are looking for a quality press. To be honest, you may want to stay away from all-in-one units and similar machines. They are a waste of money. Even though you can print just as good of a print with these machines, they are costly and they slow your process down. When your first starting, you could use a one platen machine but a 4 color-2station press is just about what you will need. Very rarely will you ever need to print anything more than a 4 color design. Later, as you grow purchase more machines that will allow for more colors. In the first years of your business, you may only have 1-6 color job. When you need to expand will suit production requirements perfectly. What you are looking for in a press is a solid frame, joystick or micro registration and rotating platens. Outside of this, startups don’t need much more than that.

5.    Conveyor dryer and flash unit:
To actually cure the ink, you need a heat source to reach 320 degrees for your ink. If you can reach 320 degrees in 1 second, it’s cured. If it’s 10 seconds, it’s cured. As long as it reaches 320 degrees, you are good. A flash unit is a unit that you place over your platen (the arm that you place the shirt on). This flash unit is meant to flash the ink just long enough where it is not cured and it is not wet. This will allow you to print colors on top of colors if needed, and you will need it! If you have a flash unit over a platen, it has to reach 320 degrees to cure the ink.

Raytek makes a heat gun that when the shirt comes out, you point the laser beam at the ink and it will give you a temperature reading, 320 is the magic number! This heat may eventually warp your platens, it will also heat your platen up enough that when you put another shirt on it and print, it might semi cure the ink in your screens, causing a clogging and poor printing so allow cool down time on long runs. The reason for this is, you would print white on a shirt, flash it, and then when the shirt comes back around to you, and it needs a second print. This gives you a good vibrant white.

If you are printing a color on a dark shirt, you would also print a white under base, flash it, then print an exact image with a different screen over top of it with the color you need. To increase your output a conveyer dryer is needed to increase your production. When you finish printing a shirt, you pull it off of your platen and place it on the conveyer dryer. Basically, it’s a dryer that has a belt on it that goes through a tunnel of heat. When it comes out the other side, it is cured. Again, use a heat gun when the shirt is about to come out, you point the laser beam at the ink and it will give you a temperature reading. Remember, 320 is the magic number!

6. Inks and miscellaneous:
The ink you will use is a Plastisol ink. There are so many manufacturers and types of inks, it’s good to find one and stick with them. Consistency is the key to success
You will also need squeegees. A squeegee is basically a handle with a rubber blade on the end. This blade is what you use to push or pull the ink through the screen and onto the shirt. There are so many miscellaneous items that it would be good to talk to Ryonet about what you need to get started

7.    Screen prep and registration:
Your scoop coater cannot reach all areas of the screen, so you want to tape out the areas that did not have emulsion, there are special tapes made to do this.
If you have a one color design, placing the screen on your press is quite simple. If you have more than one color, this is where the registration marks are needed. After placing your first screen on the press, you would do a test print. Place some ink on the screen and rest a squeegee on the frame close to the head. Pull the ink across the screen and onto the shirt then flash it. Next, take your second screen and place on the next head.
Align the registration marks on the screen to the marks on the print you made. Once in place, you can lock them in and adjust the joystick or micro registrations if necessary. Once locked in, do a test print. If everything is registered, you can tape up the registration marks on your screen and you are ready to print.

8.    Your first print:
You will be working upside down when you print t-shirts. The collar will be closest to you. After placing the shirt on the platen, pull your screen down, look between the shirt and the platen, you should have a gap. This is called your off-contact. You need about 1/8” between the screen and the platen. This will give you just enough room to make a print and allow for the screen to snap away from the shirt which gives you a clean print. Some people will push their squeegee and others will pull, whatever is comfortable to you is best for you.

Most printers pull the squeegee, which means that when you pull down the screen, grasp the squeegee and pull the ink towards you. You want to have the squeegee at an angle, if you go too much of an angle, you will get a heavy print The good thing is, if the first print does not work out for you, you can print it again, right over top of it. The registration of the machine will be the same so even if you rotated the press and came back to it, it would still print good. Rule of thumb; Angle and slow speed for light inks, less angle and a faster print for dark inks, especially printing on an under base.

Discharge Water Based Screen Printing

Discharge screen printing is becoming ever popular in todays market.  www.silkscreeningsupplies.com carries a line of discharge water based screen printing inks as well as EnviroLine water based ink that is environmentally friendly.  This blog is focused on discharge and dye discharge printing. 

Examples of Discharge Prints.

Standard Discharge

Dye Discharge: Click to Enlarge

DSPS Discharge needs to be activated by Discharge Agent which is a powder that is mixed into the discharge ink 6-10%.  You should only activate as much discharge as you will need to print at a given time as it does have a life span of about 6-8 hours once mixed.  Discharge Agent is a powder and can be ordered by the pound here.

PLEASE NOTE: YOU MUST HAVE DISCHARGE AGENT IN ORDER TO USE THE DSPS DISCHARGE SYSTEM!

To add dye into your discharge use the Ryonet EnviroLine PC 301 Pigment Inks.  PC stands for pigment concentrate and are mixed at a ratios between 5-15% (typically about 10%) into the activated discharge base. PC pigments are available in quantities of 4, 8, and 16 ounces.  

Discharge ink can be used with most 100% cotton shirts (does not work on poly or poly blend fabrics).  We recommend that you consult your shirt supplier to find out which garments SKU’s are the most discharge receptive.   Always test as results may even vary from batch to batch on the same type of garment.   

Confused about water based and discharge inks?
Here are a few helpful application charts.

Water Based Ink Type EnviroLine
WB Inks
DSPS Discharge Discharge White PC Pigments 301 Inks
Garment Capability 100% Cotton & Poly Blend 100% Cotton 100% Cotton N/A
Environmental Friendly Very Slight Impact Slight Impact Mixed With:
WB: YES
Discharge: Some
Pantone  Matching Yes No No Yes
Required Additives None:
Ready for use.
Discharge Agent Discharge Agent Must be used with a base or discharge binder.
Color Additives PC Colors for color boosts PC Colors N/A Can be used with RC Inks, PC Bases, or Discharge Binders
Mixing Ratios PC Pigments as a color boost up to 15% Agent:
6-10%
PC Ink: 5-15%
Agent:
6-10%
See Instructions
Underbase Options RC Transparent  Opaque White Discharge   Discharge White Used as an under base Used as an under base When mixing with discharge, no underbase needed.

 

Application Type Of Water Base System Mesh
Pantone Color Match EnviroLine 301 RC WB Inks 156-280
Paper / Cardboard EnviroLine 301 RC WB Inks 230-305
Towels / Canvas EnviroLine 301 RC WB Inks 86-110
Light Garments
(100% or Blend)
EnviroLine 301 RC WB Inks 156-230
Opaque Results on Dark Garments
(100% or Blend)
EnviroLine 301 RC WB Inks w/ Opaque White Water Based Ink White: 110-156 Color: 156-230
Soft Hand on Dark Garments
(100% Cotton)
1. Discharge w/ RC Color Overprint
2. Discharge White w/ RC Color Overprint
3. Dye Discharge w/ PC Pigment
110-156
Vintage Look and Feel 1. RC WB Ink on Light or Dark.
2. Direct Discharge
3. Dye Discharge
Ink:
156-200 Discharge: 110-156

Ryonet Water Base Discharge does require certain safety precautions when mixing and printing.  

Read more about discharge printing and instructions for use below!

MESH:80-160

STENCIL/EMULSION: A water proof direct emulsion should be used for optimal performance. SWR-3.

SQUEEGEE: 60-80 Durometer square edge. (Ryonet recommends 60 or 70 Durometer)

MIXING:

  • PC Pigments: Mix 10% or less pigment with 100% discharge binder making sure to mix pigment into binder before mixing in the discharge agent.
  • Discharge Agent: Should be mixed 10% into 100% discharge binder (by weight).  

    PRINTING: Once discharge agent is mixed into the discharge binder (with or without pigment) print directly on fabric, flash cure and print Matsui 301 Eco-Series inks directly on top (wet on wet).

    Under Basing: An under base can also be accomplished by printing discharge ink, which discharges the dye from the fabric, flashing, and over printing wet on wet w/ RC Ink.  For the ultimate brilliance and soft hand results try our premixed White Discharge which has white pigment mixed in into the discharge leaving a discharged white under base.

    Curing Options: Water based inks cure differently from standard plastisol inks.  While plastisol inks cure with infrared once reaching 320 degrees, water based inks cure best with air movement and heat.  Air movement is preferred to drive water out of the ink and blow away steam so heat can cure water base pigment properly. Without hot air movement across the ink, water based inks will take much longer to cure.  In good air flow, water based inks can cure in under 1 minute while it may take 2.5 to 3 minutes in a standard infrared dryer. (Paper can be allowed to air dry)

    WE STRONGLY SUGGEST WASH TESTING AND DOCUMENTING CURE TIMES BEFORE BEGINNING PRODUCTION.

    Level Method Picture Process
    Basic  Heat Gun

    Heat guns actually work fairly well for curing low quantities of water base prints. Hot air from the gun forces water from the ink and curing can actually be seen as the ink dries.
    Starter Infrared Flash

    IR flashes work marginally well. Take shirt off pallet, raise flash head up 4-5 inches above the shirt, cure for 2-3 minutes until ink is temped at 320 degrees. Wash test before production.
    Intermediate Infrared Conveyor

    IR conveyors work decent for low quantity production. Raise conveyor gates to allow steam to exit dryer, bump temp down slightly, slow belt speed down, allow to dwell 2-3 minutes.
    Professional Forced Air Flash

    Forced air is preferred for lower production or flashing. For a final cure, lift shirt from pallet to allow air to circulate under the garment.  Cure for 60-90 seconds.  Conduct Wash Tests.
    Production Air Flow Conveyor Dryer

    Optimal for WB Inks, air flow gas or IR dryers can cure in 60-90 seconds depending on chamber length. Air knifes remove water from ink and IR or Gas heat cure garment.

    CLEAN UP:  Card off excessive ink and dispose of in trash.  Use Sprayway Water Base Screen Opener to break down ink then wipe residue from screens, screen frames, squeegees and any surfaces in contact with ink. Left over residue can also be washed in the sink with water after soaking.

    FINISHING: It is highly recommended to wash and dry garments or fabrics before packaging and shipping.

    View and Download Discharge DSPS and Discharge Agent MSDS Sheets.

    Water Base Discharge Inks

    Discharge printing can be a valuable addition to your operation. Discharge is not a use-it-and-forget-it product. Discharge printing comes with safety precautions, issues with finished goods, and procedures for a healthy shop environment. These issues are not that difficult to deal with and cannot be ignored. Be prepared to properly handle the discharge products or don’t even try them.

    Methods of using discharge

    Discharge inks require an activator/catalyst to work; there are two different systems available. The predominant system relies on active ingredient Zinc-Formaldehyde-Sulfoxylate (ZFS). The newer, and less used system relies on Thiourea Dioxide as its active ingredient. There are different name determinations dependant on what the ink company calls it, in most cases formaldehyde is the active ingredient. In both systems, the ink has a limited discharge life once the activator is added. There are two methods of discharge printing, both systems can be used.

    1.       The first and most traditional printing method is to discharge every color in the print; there is no need for an underbase screen. In this format you mix PC pigments into the discharge to give it color when discharging occurs.  PC pigments can be ordered in a variety of different colors and are typically mixed at about 10% into the discharge base.  This method saves a screen and does away with flashing between colors. The exception to this rule is when a black-ink screen is needed. There’s no need to use discharge if the black will cover without it. When printing on black, any black that is on the design is reversed, that part of the design will use the shirt color itself.
    Example of Dye Discharge: Click to Enlarge

    2.       The second method is to use discharge strictly as an underbase. With this method, you can use either white discharge or natural discharge, which contains no pigment and reveals the natural color of the fabric. The following colors are printed with regular plastisol with or without flashing.  Some prefer not to flash the discharge underbase. This saves the head used for the flash and any cool down heads. The end result is that printers can increase the amount of colors they can print on dark shirts by one or two.

    The white discharge underbase works well for most design types, especially spot-color work. Even though the other colors are printed using plastisol, the overall print has a less heavy feel because the underbase is a water-based product. If a design contains halftones or other areas with very thin ink deposits, then a natural discharge would work much better. The pigment in the white discharge underbase might mix with the process inks and shift their color. This is usually a problem with spot colors.

    Discharge underbasing makes true 4 color process printing on dark fabrics possible. For process printing do not use a white discharge underbase. When the white pigment mixes with the transparent process inks, they will turn pastel and muted. Work with a natural discharge underbase that will reveal the natural cotton background color using a highlight white to make the design pop. Process-ink systems can be beefed up using triple-strength versions to compensate for the natural background thus overcoming the off-white background color. Again if the design contains any white color of its own, print a white highlight that is designed to print with the process inks using this application.

    Safety issues in production

    Water-based ZFS-activated discharge is the most used and the most versatile method of discharge printing. ZFS has an unpleasant odor and should be handled carefully in its crystal form then blended into the ink by a properly trained employee. Always blend the ZFS slowly until it is well mixed in the ink to prevent dust, ZFS is relatively safe once in solution. Formaldehyde is a skin irritant. Proper procedure dictates dryers should be properly vented, never use an unvented dryer for discharge curing. Shirts printed with ZFS discharge have measurable levels of formaldehyde. Garments that are allowed to sit for a time after printing in an unconfined state will disperse most of the formaldehyde within days. If at all possible, avoid folding and packing ZFS-discharged garments immediately after printing.

  • Screen printing as a hobby or business? Questions questions questions!

    A lot of people want to get into screen printing but don’t know where to start.  As we’ve already stated earlier in this blog, that’s what we’re here for.  But sometimes before you get started you should take a second and figure out exactly what it is you’re wanting to do with screen printing.  Are you all business?  Wanting to buy two automatics and a conveyor dryer right off the back?  If so what’s your business plans?  Do you already have an established line of customers you’re taping into that will be there once you get up and running?

    You see, screen printing can be inexpensive to start or outrageously expensive (expensive startup can mean huge profits!) but it’s always important to have a plan.  Don’t just jump in, do some research, develop a strategy.  If you’re just in it for the hobby of it and anything you sell is just bonus that’s great.  There are many large productions shops operating today that started out with very humble goals, and even more shops that started out as a hobby and stayed a hobby.  Success is all relative and what matters is the plan you devised from the beginning and whether you are achieving what you want.  So take your time, do your research, and plan for the future.

    Where to get information?

    People often want to know how to screen print, how it works, and really, how to get started.  The fact of the matter is you’re just going to have to do some research on the subject.  There’s no set standard in the industry and people’s goals and what they plan to do once they begin printing all vary.  Some people want to jump straight in to an automatic while others just want to get their feet wet with a simple one color, one station press.  There are a few places to check out as far as screen printing goes though.  First off Youtube has a bunch of information on screen printing like this video right here.  But the videos on the internet aren’t usually too in depth and sometimes you need more, and for that there are a few really good sites and forums out there.  This site seems to offer a lot of free information, where as this and this forum both have a pretty hefty number of people visiting them daily.  One word on the forums though, just take everything you read with a grain of salt, most of the people answering questions on there are far from anything you would call an expert.

    Start Silk Screening and Screen Printing Shirts

    First of all, we would like to say thank you for your interest in screen
    printing. We hope that this message will bring you more insight into the screen
    printing process and business. If you are asking a more specific question
    then a general request for screen printing info or about our packages on this
    page, please email us at support@ryonet.net (for tech questions
    or customer service) or sales@ryonet.net
    (for questions relating to future purchases) so we can respond to your question with the proper attention.

    Want to know how screen printing works?
    Instead of calling, check our easy to follow 10 minute
    intro to process video.

    www.SilkScreeningSupplies.com and the RYONET CORP offers a wide variety or products,
    kits, and services. Our goal is to provide our customers with professional
    quality products at an affordable price. Unfortunately, many screen printing
    suppliers and websites market over priced setups that make it difficult for
    those just starting out to get involved. We offer a large variety of kits to fit
    any budget and level of entry. Whether you want to start an up and running
    screen printing shop or just print a few shirts in your spare time, we will be
    able to accommodate you.

    Ryonet is a well established and professionally ran corporation. With
    over 28 employees working both in Washington and Arkansas we can ship to nearly
    the entire United States within 3 days ground. Our staff is knowledgeable
    and well trained in the screen printing industry with years of actual shop
    experience under their belt. Whether it be finding the right product or
    getting through a sticky situation, we are here 10 hours a day to help you!
    For more information about our company, please check out our about us page on
    our website.

    http://www.silkscreeningsupplies.com/site/799934/page/269580

    Before I explain to you how the screen printing process works, let me first
    go over the kits we offer. Depending on where you want to start, this should
    help clarify what you need to look for. If you have no idea of what screen
    printing is or how it works and like to actually SEE how it is done
    rather then reading about it, I would strongly recommend our
    Screen
    Printing 101 DVD
    .
    This DVD offers over 5 hours of instruction and
    insight into the screen printing process. It’s also RISK free because you
    can apply the price of the DVD to any kit purchased from our website.

    If you are interested in taking a screen printing class, we have hands on training available as well, for more information check our our class schedule here.


    http://www.silkscreeningsupplies.com/site/799934/page/513551

    Wanting to start a full screen printing operation?

    If you are fairly serious about starting a successful screen printing business,
    we would suggest looking into one of our business oriented packages. Currently
    we have several options available. Our first is the Semi-Pro Complete Screen
    Printing Setup. This package would enable you to start printing 1-4 color shirts
    and even up to full color designs using four color process printing. The
    printing production output is between 40-80 shirts an hour depending on how
    complicated your designs are. The press will also enable you the possibility of
    printing sign and decals in the future without having to purchase more equipment
    (all you would need to purchase is a larger printing platen and different
    screens and ink). The initial investment is around $1000, however with the
    supplies provided to you in this kit, you will be able to print between
    2000-3000 shirts and recoup your investment easily. We can’t make any promises,
    but we have many customers who have started substantial screen printing business
    with just this kit.


    http://www.silkscreeningsupplies.com/site/799934/product/1008

    Its big brother the Semi Pro Plus package gives you a higher print
    production, better exposure quality, and the ability to print 6 colors instead
    of 4.

    http://www.silkscreeningsupplies.com/site/799934/product/1008P

    If you are a little more serious and have some more money to invest, you will
    want to look into our Entrepreneur and Premier complete screen printing shop
    setups. These packages are in a few words, top of the line startup screen shops.
    They includes a fully rotating four or six color, four station heavy duty press
    with patented “Joystick” micro-registration. They also include a full package of
    supplies, an exposure unit, flash cure and conveyer dryer, as well as a washout
    booth. The printing output is between 120-200 shirts per hour with the
    possibility to do every type of complicated printing. The initial investment is
    between $3,700 - $6,500. This would depend on the options you would choose.
    These packages offer the best equipment and a the best package price. They also
    have the ability to print different products then t-shirts as well.


    http://www.silkscreeningsupplies.com/site/799934/product/ent44


    http://www.silkscreeningsupplies.com/site/799934/product/prem64


    http://www.silkscreeningsupplies.com/site/799934/product/elite

    If you are a extremely serious and have a slightly higher budget we have two
    packages geared more towards a larger manual screen shop. The PRO1 and
    PRO2 packages have heavier duty equipment and larger equipment for higher print
    production times, more peripherals, and film output options for unlimited film
    capabilities. You can view these here.

    http://www.silkscreeningsupplies.com/site/799934/product/PRO1


    http://www.silkscreeningsupplies.com/site/799934/product/PRO2

    Wanting to start out small with the possibility to expand?

    There are several lower cost kits that can help you get started for a fraction
    of the cost other companies are asking.

    Printing for just a hobby?

    Screen Printing Starter Kit with a stationary steel printing press. This kit is
    a great way to get started. The kit comes with everything you need to make your
    screens and print 1-2 color shirts. The steel printing press has off-contact
    adjustments so you will also be able to print single color signs and decals.
    With the supplies that come with this kit you will be able to print between
    500-700 shirts with ability to print an unlimited amount with the purchase of
    more ink. The price range for this kit is between $235-$275, depending on the
    options that you chose. This kit is a great way to start out and this press will
    last the life time of your shop and would be put to good use printing your one
    color designs long into the future.


    http://www.silkscreeningsupplies.com/site/799934/product/1009

    For those wanting to print multiple color prints for a lower cost, we suggest
    taking a close look at our Econo 4 Color Press and Package. This kit is great
    for doing one to four color textile prints. The four color steel press that
    comes with the kit provides excellent registration and durability. We’ve
    designed the press to handing a fair amount of use as you learn the industry and
    have fun doing it. This kit should print over 800 shirts with the provided
    supplies and is priced around $600.00 depending on the options you chose.
    You can always add a flash dryer to this at a a later date for a dependable
    curing source and higher production times.


    http://www.silkscreeningsupplies.com/site/799934/product/EC41

    Screen Printing Signs or Decals:

    Although flat stock printing is a little different then printing on t-shirts,
    our company offers several packages to help business’s print signs and other
    products for a low cost.

    The ink used to print on signs and other flat stock applications, (such as:
    metal, glass, stickers, vinyl, paper) is an air dry ink. The is nice because it
    doesn’t have to be heat cured, however this limits you to only printing one
    color at a time. We’ve designed two kits for around $325 that give you the
    ability to print onto the most popular 18×24” corrugated plastic signs
    (political, real-estate, ext) or anything that is flat stock. The kits come with
    a single color fully adjustable steel press as well as a 20×27” printing pallet
    and a 23×31” in aluminum screen.


    http://www.silkscreeningsupplies.com/site/799934/page/350465

    Finally if screen printing is not for you, we have two options
    available for you to look at.

    Heat transfers can be purchased from a screen print warehouse or printed
    directly from your desktop printer and then heat transferred onto a shirt.
    To view our heat transfer presses, supplies, and packages please click here.

    http://www.silkscreeningsupplies.com/site/799934/page/543863

    The newest form of shirt printing technology is called direct to garment
    printer. Our FAST T JET printer prints t-shirts like a desk top printer
    prints pictures. There is very little setup and cleanup time and the
    printer prints on both light and dark garments. It gives you the quality
    of screen printing with the ease of heat transfers. For more information
    on the Fast T Jet please click here.

    http://www.silkscreeningsupplies.com/site/799934/page/825816

    The Screen Printing Process:

    For those of you who know nothing about screen printing or need a refresher
    course, hopefully this will shed some light on how things work. You
    can also check out our FREE online DVD here:

    http://www.silkscreeningsupplies.com/site/799934/page/543290

    We offer two versions of screen printing process and instruction, we recommend reading both to obtain the most comprehensive understanding. The first is the more simplified, the second a little more complex. Good luck and we hope this has provided you some needed information!
    The 8 key elements in
     Screen Printing:

    1. Artwork: The artwork you start art with is important. If
     you have jagged or grainy artwork, you will reproduce have jagged or grainy
     artwork REMEMBER; Garbage in-garbage out.
     
     http://www.silkscreeningsupplies.com/site/799934/page/82582777
    Programs
     for doing art in-house are available or there are art services on the
     internet that will supply you will screen printing artwork. If you fax them
     a logo, they can redraw it for you and send you a file in which you can use
     for the making of screens.

    If you can draw the artwork yourself, it is wise to use a vector art
     program like SmartDesign which is a Corel Draw supplementary program. This
     quick and easy tool ensures that you will have high quality artwork in the
     end in less than half the time. Photoshop can be used as well, but this is
     more for full color printing, etc., which is not good to start out with
     since there are special techniques to master before moving into this realm.  

    2 Film Positives: When you have artwork that is ready to
     print, you can print your artwork out on a clear film instead of paper. For
     every color you have, you will print it out as a black plate on a separate
     film. For example, if you have a logo that is Red & Black, you would
     separate the two colors from themselves and print each out, changing the red
     to black and printing and then printing the black. Each of these would be
     printed on their own film by a printer, inkjets have made great strides and
     coupled with a RIP program have made actual cameras and darkrooms almost
     obsolete.
     
     http://www.silkscreeningsupplies.com/site/799934/product/Ripcombo1800
     

    This is simply known as art separations. If the colors are touching in
     the final version of the logo, then you need to have what is called trap or
     choke. Basically, it’s an overlapping of the artwork by a small margin. This
     small margin is just enough so you can register the colors so there is no
     space between them. On the films, you will also place registration marks.
     These marks usually are a circle with a vertical and horizontal line passing
     through it. These marks will be on the same spot on each film. This will
     help you register your colors later it’s also a good idea to include center
     marks so the design will be dead center on the platen.

    3. Screen Making: When screen printing began it was called
     silk screening. The reason for this is, the screens used to be made from
     silk. Since this is no longer the case (now they are made from polyester),
     the name changed. A screen is simply a wooden or metal frame that has a fine
     mesh stretched over and attached to it. Some examples Wood 20x24 38 white meshhttp://www.silkscreeningsupplies.com/site/799934/page/269576
     would be 83, 110, 125, 200, 230 and so on with various numbers in between.

    The lower the mesh count, the less detail you can print and the thicker
     the ink lays down. Choosing the proper mesh for the job is art form, in time
     you’ll learn through testing and results. It’s always a good idea to keep
     production records for consistency from the beginning of every job.

    The actual process of screen making is quite simple, just time consuming,
     the most common technique is using a light sensitive liquid emulsion
     although Capillary film is stilled used. Emulsion
     
     http://www.silkscreeningsupplies.com/site/799934/product/CCDXPQT
    can be
     used under a yellow light so that you still can see what you are doing, but
     the UV light is filtered out so as not to effect the emulsion. A scoop
     coater is needed.
     
     http://www.silkscreeningsupplies.com/site/799934/product/SC16
    You pour
     emulsion into the scoop coater and place it on a vertical screen. Pressing
     up against the screen and pulling up, you will lay a thin layer of emulsion
     on the outside of the screen. Turn the screen around and do the same for the
     inside of the screen. Emulsion thickness EQUALS ink thickness. For thicker
     stencils it’s a good idea to dry between coatings.

     
     Once the emulsion dries, you can “expose” the screen. You need a good light
     source for this process. The exposure unit is basically a box with a glass
     top and a lid that has a compression lid
     
     http://www.silkscreeningsupplies.com/site/799934/product/RXP2536LID

     or
     a rubber blanket and a vacuum frame. The light source would be contained in
     this box. To expose a screen, taking the film positive you created and place
     it on the glass top with the right reading being up. Then take the dried
     screen and place it on the glass top with the film positive under it. The
     screen mesh will be touching the film positive. When you close the lid, the
     compression lid presses the foam against the screen and the positive
     providing contact.

    At this point, the length of time will be dependent on your emulsion and
     light source. This is something you can talk to your supplier about. It’s
     really a matter of testing. Most problems occur in this stage, so it is
     critical that you understand this process through testing, training and
     trial and error. The better you are in this area, the better your prints
     will be. For a black light unit a 5 to 3 minute exposure time is the norm
     but will vary as already mentioned due to emulsion thickness and mesh
     counts.

    Once the image is exposed into your emulsion, you can take the
     screen to a washout booth
     
     http://www.silkscreeningsupplies.com/site/799934/product/KDL
    lightly
     spray both sides of the screen with water. A garden hose with a sprayer on
     the end works well for this procedure. You do not want a lot of pressure but
     you do want some. After waiting for a minute, you can go back and begin
     spraying your screen with water. Spray on the outside of the frame, or the
     side that was touching the film. The inside will naturally be softer because
     the light had to shine through the emulsion to get to that side. A good
     exposure will yield less scum (softness) on the inside.

    As you spray down the screen, you will see the image on your screen. What
     happened is, wherever there was black on your film, the light did not shine
     through. Since the light could not expose the emulsion, it remained water
     soluble. Wherever the light shine through the emulsion, it hardened and will
     not wash away. Lay out newsprint and pat the inside (squeegee side) with one
     sheet, DO NOT wipe then let the screen(s) dry. You will want to check for
     pinholes (little holes caused but dust, dirt) and block out with emulsion or
     a commercial blocking agent, then dry. After the screen has completely dried
     expose again (post –hardening) for a longer lasting stencil. This can be
     done in your exposure unit or out in the bright sun.

    4. Printing Press Choosing a printing press is as critical,
     although you are looking for a quality press. To be honest, you may want to
     stay away from all-in-one units and similar machines. They are a waste of
     money. Even though you can print just as good of a print with these
     machines, they are costly and they slow your process down. When your first
     starting, you could use a one platen machine but a 4 color-2station press
     
     http://www.silkscreeningsupplies.com/site/799934/product/lg4×2
    is just
     about what you will need. Very rarely will you ever need to print anything
     more than a 4 color design. Later, as you grow purchase more machines that
     will allow for more colors. In the first years of your business, you may
     only have 1-6 color job. When you need to expand
     
     http://www.silkscreeningsupplies.com/site/799934/product/WIN64
    will suit
     production requirements perfectly. What you are looking for in a press is a
     solid frame, joystick or micro registration and rotating platens. Outside of
     this, startups don’t need much more than that.

    5. Conveyer dryer and flash unit: To actually cure the ink,
     you need a heat source to reach 320 degrees for your ink. If you can reach
     320 degrees in 1 second, it’s cured. If it’s 10 seconds, it’s cured. As long
     as it reaches 320 degrees, you are good. A flash unit is a unit that you
     place over your platen
     
     http://www.silkscreeningsupplies.com/site/799934/product/BBCBF2-2000S

     (the arm that you place the shirt on). This flash unit is meant to flash the
     ink just long enough where it is not cured and it is not wet. This will
     allow you to print colors on top of colors if needed, and you will need it!
     If you have a flash unit over a platen, it has to reach 320 degrees to cure
     the ink.

    Raytek
     
     http://www.silkscreeningsupplies.com/site/799934/product/RMT4
    makes a
     heat gun that when the shirt comes out, you point the laser beam at the ink
     and it will give you a temperature reading, 320 is the magic number! This
     heat may eventually warp your platens, it will also heat your platen up
     enough that when you put another shirt on it and print, it might semi cure
     the ink in your screens, causing a clogging and poor printing so allow cool
     down time on long runs. The reason for this is, you would print white on a
     shirt, flash it, and then when the shirt comes back around to you, and it
     needs a second print. This gives you a good vibrant white.

    If you are printing a color on a dark shirt, you would also print a white
     under base, flash it, then print an exact image with a different screen over
     top of it with the color you need. To increase your output a conveyer dryer
     is needed to increase your production. When you finish printing a shirt, you
     pull it off of your platen and place it on the conveyer dryer. Basically,
     it’s a dryer that has a belt on it that goes through a tunnel of heat. When
     it comes out the other side, it is cured.

     
     http://www.silkscreeningsupplies.com/site/799934/product/BBCLB02-20002-20

     Again, use a heat gun when the shirt is about to come out, you point the
     laser beam at the ink and it will give you a temperature reading. Remember,
     320 is the magic number!

    6. Inks and miscellaneous: The ink you will use is a
     Plastisol ink. There are so many manufacturers and types of inks, it’s good
     to find one and stick with them. Consistency is the key to success

     
     http://www.silkscreeningsupplies.com/site/799934/page/873816873816
    You will
     also need squeegees. A squeegee is basically a handle with a rubber blade on
     the end.
     screen printing squeegeeThis
     blade is what you use to push or pull the ink through the screen and onto
     the shirt. There are so many miscellaneous items that it would be good to
     talk to Ryonet about what you need to get started.

    7. Screen prep and registration: Your scoop coater cannot
     reach all areas of the screen, so you want to tape out the areas that did
     not have emulsion, there are special tapes made to do this.

     
     http://www.silkscreeningsupplies.com/site/799934/page/854291854291
    If you
     have a one color design, placing the screen on your press is quite simple.
     If you have more than one color, this is where the registration marks are
     needed. After placing your first screen on the press, you would do a test
     print. Place some ink on the screen and rest a squeegee on the frame close
     to the head. Pull the ink across the screen and onto the shirt then flash
     it. Next, take your second screen and place on the next head.

     Align
     the registration marks on the screen to the marks on the print you made.
     Once in place, you can lock them in and adjust the joystick or micro
     registrations if necessary. Once locked in, do a test print. If everything
     is registered, you can tape up the registration marks on your screen and you
     are ready to print.

    8. Your first print: You will be working upside down when
     you print t-shirts. The collar will be closest to you. After placing the
     shirt on the platen, pull your screen down, look between the shirt and the
     platen, you should have a gap. This is called your off-contact. You need
     about 1/8” between the screen and the platen. This will give you just enough
     room to make a print and allow for the screen to snap away from the shirt
     which gives you a clean print. Some people will push their squeegee and
     others will pull, whatever is comfortable to you is best for you. Most
     printers pull the squeegee, which means that when you pull down the screen,
     grasp the squeegee and pull the ink towards you. You want to have the
     squeegee at an angle, if you go too much of an angle, you will get a heavy
     print The good thing is, if the first print does not work out for you, you
     can print it again, right over top of it. The registration of the machine
     will be the same so even if you rotated the press and came back to it, it
     would still print good. Rule of thumb; Angle and slow speed for light inks,
     less angle and a faster print for dark inks, especially printing on an under
     base.

    Helpful Information

     
     http://www.silkscreeningsupplies.com/site/799934/page/513551
    Training Classes

     
     http://www.silkscreeningsupplies.com/site/799934/page/825827
    Software

     
     http://www.silkscreeningsupplies.com/site/799934/page/269581
    Questions and answers

     Tips and tricks, Pointers and Advice from Ryonet’s Technical
     Assistance Team.

     

    More In Depth Instruction

    Making a screen:

    A screen is made by transferring a positive film onto a photo sensitive
    emulsion. A positive film is a black image on a clear transparency sheet
    (something like the overhead transparencies displaces you saw your teachers
    using in high school.)

    Creating your design: It’s not too hard to create your t-shirt design. For your
    basic text t-shirts, designs can be made in any word processor program. If you
    want to create multiple color designs with graphics and logos it would be a
    smart idea to look into getting either Adobe Photoshop or Corel Draw. These
    programs allow you to separate your colors to correctly output your film. Each
    color your print has to be separated to a different layer in your artwork
    program because each color has to be printing through a separate screen on your
    press. After designing is completed, your end goal is to have a black design on
    a white background. If you have a multiple color design, you simply need to view
    each color at a time and transpose your color into black and white before you
    print it.

    Printing your film: The film goal is to print a black opaque image on a clear
    transparency positive or unfiltered vellum paper. You can print this film
    directly from your home inkjet or laser printer. There are some variables
    involved when printing your film. Like I said before, you want to get a very
    dark and opaque black image on your film. If you have to, you may need to print
    two copies out and stack them on top of each other. When you hold this your film
    up to the light, you don’t want to see any light through your image. If you are
    having problems getting a dark image, for laser printers there are spray toner
    enhancers that can help you achiever better results. You can also print two
    copies of your film and layer them on top of each other. Any computer and
    printer can print out basic film, spot color (text, logo’s, but no fades, half
    tones, or photo graphic reproduction.) If you would like to be able to print
    half tones (half tones are how a shade or a fade is screen printed), you need
    two things. A Special Printer RIP (this is a go between from you computer to
    your printer that tells the printer to print half dots and fine tons. Normal
    printer drivers are not designed for this.) You will also need a higher end
    printer that is compatible to this RIP. If you are interested in more advanced
    printing, please check out this printer and rip film output package.


    http://www.silkscreeningsupplies.com/site/799934/product/Ripcombo1800

    Important Note: You do not have to have this special rip or printer to start
    out. You can print all your most popular images, text, and designs strait from
    your desk top printer.

    Once your film is completed you are ready to continue making your screen.

    The most important thing to emphasize in the screen coating, exposure, and
    washout process is “light safe”. Your emulsion is sensitive to bright light, if
    you are trying to expose or washout out side or in a brightly lit room you are
    running a VERY high risk that your image will not turn out. Please keep this in
    mind during this process.

    Before you exposure your screen to light, you need to coat your screen with
    emulsion.

    When coating your screen, you want to be sure that your room is very light
    controlled. A dim yellow “light safe” light in the corner of the room just
    enough so you can see what you are doing would suffice. Do not use any bright
    fluorescent or halogen lights as this will ruin your screen. Depending on the
    type of emulsion you are using the coating instructions can vary. I’m going to
    explain how to coat a screen using the simplest method using a dual-cure
    emulsion.

    Every emulsion will come with its own mixing and application instructions. You
    will want to read these instructions thoroughly so you can make any adjustments
    if need be.

    To coat your screen we would suggest using an emulsion scoop coater. Before you
    coat your screen, you want to degrease your screen to remove any hand grease or
    dirt that might have gotten in the screen during manufacturing and shipping. To
    degrease a screen, you apply screen degreaser soap to the screen and scrub in
    into the mesh using a scrub pad. After your screen is degreased wash it out with
    cold water so all the soap is gone and completely dry your screen with a lint
    free towel and then under a fan.

    In your dark room, apply one coat of emulsion to the outside or shirt side of
    your screen. Once the outside of the screen is coated, turn the screen over and
    put a second coat on the inside of the screen. As soon as your screen is coated,
    place a fan on your screen to help dry it faster and then turn the light off to
    make the room completely dark. To properly dry your screen, place two pieces of
    wood on the floor and set your screen onto them with the shirt side facing down.
    You want all your emulsion to settle on the outside or shirt side of your
    screen. This will create a gasket for printing. With a fan on your screen, the
    emulsion should dry in about 3 hours. Without a fan, let it dry overnight. When
    the emulsion dries, it should turn a darker color then you originally started
    with.

    Once your emulsion is dry, your screen is ready to be exposed. Depending on what
    kind of light source you are using to exposure your emulsion the exposure times
    and instructions will vary. I am going to explain how to expose a dual-cure
    diazo emulsion using a 500 Watt Halogen Light.

    Place your screen flat on a table or floor with the flat side of the screen or
    the t-shirt side of the screen facing up. We sell a pre-set pre-measured stand
    that you can place your screen into instead of setting up the light yourself.
    However, if you are setting the light up yourself, you need to place the 500
    Watt light directly above the center of the screen at a distance of 16 inches.
    This is all done of course in your dark room with very minimal light. Once your
    light is set in the right position you reverse your positive film and place it
    on the screen. To reverse your film you are basically flipping it over so that
    when the shirt is printed it will show up the right way. Once your film is on
    your screen you need to place a piece of unfiltered flat glass over your film so
    that there will be no light refraction between your film and your screen. Once
    this glass is placed over the screen turn your light on for exactly 12 minutes,
    30 seconds.

    If you are exposing a screen with a high output UV exposure unit you exposure
    times will go down tremendously. An exposure time for a 110 Mesh screen with our
    UV exposure units will expose in about 5 minutes 15 seconds. Read more about our
    exposure units here. There are also higher end more advanced forms of
    exposure units as well.


    http://silkscreeningsupplies.com/site/799934/page/350453

    After twelve minutes thirty seconds, turn your light off and take your screen
    directly to a wash basin or outside to wash your design out. You cannot expose
    the screen to bright light after it has been exposed until your design has
    washed out. You want to be using a thin, directed line of water to wash your
    screen out. If your screen and emulsion get too wet with too much water your
    emulsion will start to wash out and the design will be ruined. Using cold water
    get both sides of your screen wet. You should see your design show up on your
    screen. Let the water soak into the emulsion for about one minute. Continue
    washing out your design until all the emulsion on the inside of your design is
    completely washed out of the screen. Once your design is washed out, place your
    screen back under your fan to dry the emulsion.

    You are now ready to start printing. Clamp your screen into your press and apply
    a small amount of ink under your image. You screen should sit off or your shirt
    about 2 pennies high to insure off contact is achieved. You might want to print
    a couple test shirts first to make sure your design is lined up and printing
    properly. When your shirt is on the printing platen, pull down your screen onto
    the t-shirt. Using your ink squeegee, make a 2-3 passes over your design pulling
    the ink over the design and pushing it through onto the shirt. Be sure to press
    hard when bring over the squeegee. If you do not apply enough pressure your
    prints will not come out properly. Always make your passes in the same direction
    what ever that may be. Once your printing passes are completed place your screen
    back in the up position. For tips on printing with the proper squeegee angle
    check out this article.

    http://www.silkscreeningsupplies.com/site/799934/page/853186

    The ink now needs to be heat cured. You want to cure the ink at 320 degrees
    for 45 seconds. You can do this using a flash dryer, heat gun, conveyer dryer,
    or conventional home oven. We would recommend using a flash dryer or conveyor
    dryer but if you are using a heat gun you are going to want to cure the ink for
    about twice as long in order to set the ink correctly. When using a flash dryer
    to cure or flash a shirt, you want your heat element of the flash to be about 3″
    above the garment surface. Also if you only have a single station press, its a
    good idea to set up a separate drying table to do your final cures on. This will
    help your printing pallet from getting too hot and possibly warping. When you
    are printing a thicker ink such as white, you want to increase your curing time
    to compensate for the thicker ink. A good way to test to be sure your ink is
    cured is to slightly pull or stretch the image. If the ink stays together like
    rubber, then your ink is probably completely cured. However, if your ink breaks
    apart and you can see the shirt under the ink, then you are going to want to
    increase your curing time.

    Cleanup:

    Once you are done printing it is time to clean up. If you are planning on
    keeping your screen you simply need to store the screen in a cool dry place that
    is preferably dark. The ink doesn’t dry because it is an oil based plastisol so
    if you are keeping your design you do not need to completely remove all the ink.
    You want to get all the ink out of your image at least though.

    If you are planning on scrapping the design and reclaiming the screen so it can
    be used again you need to remove all the ink. You can do this with an ink
    solvent remover. Do not use lacquer thinner for this because it will chemically
    set your emulsion so it won’t wash out of the screen.

    After your ink is removed from the screen, spray your stencil or emulsion
    remover onto your emulsion using a spray bottle. Let sit for about 45 seconds
    and then spray out with a high powered sprayer. If you have access to a pressure
    washer, this would be ideal to use.

    After your emulsion is removed from the screen, degrease the screen once again.
    Let the screen dry and store it in a clean place until you are ready to make a
    new design.

    This is the basic how to guide for the screen printing process. If you are very
    interested, sometimes things are much easier shown then explained. Please check
    out for FREE our full instructional DVD available for viewing or download on our
    website at the following address.


    http://www.silkscreeningsupplies.com/site/799934/page/543290

    Thanks once again for your interest. Our technical support and customer
    service team is available via email or phone to answer your questions as they
    arrive.

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    www.silkscreeningsupplies.com

    Screen Printing Basics

    The purpose of this blog is to give wide ranging information about screen printing. Everything from what type of emulsion you should be using to when it’s right to step up to an automatic press. Before we start overloading you with information let’s start with the basics. What is screen printing and how is it done? Here’s a short video about the process of screen printing.

    A good source of screen printing information is www.silkscreeningsupplies.com