Understanding the Basic Screen Printing Terms

This handy guide will allow you to quickly learn the7. BURNING A SCREEN.
basic terms and materials needed to screen print.This is the process of using a halogen light (or very
1. YOUR ARTWORK.high wattage light bulb) to burn your artwork image
This can be a picture, drawing, cartoon, or wordsto the silkscreen. In areas where the emulsion is kept
you want to put on your t-shirt. This is the startingsoft (by your image blocking the light) and is
point of screen printing your t-shirt. This can be doneeventually washed out of the screen, the ink will pass
in many different ways using many differentthrough to produce your print.
software packages. What is key is that the art must8. HALOGEN OR HIGH WATTAGE LIGHT BULB.
be done in vector format. The the main programsThese lights are used to permanently dry the
professionals (and amateurs) use are Adobeemulsion onto the screen, so no ink can flow through
Illustrator and Corel Draw.to the screen. It's used to burn the artwork image
2. SEPARATIONS or “SEPS”.onto the screen, so only holes where the artwork
Once your art is created, each color must be printedblocked the hardening of the emulsion as in 7 above,
on clear film called separations. These will be used toink can easily flow through onto your t-shirt creating
burn the images for each color into the screen.your design.
3. THE SCREEN.9. SQUEEGEE.
This is a square metal (usually aluminum) or woodenThis is a tool with a flat rubber blade on one side
frame with a screen made of mesh material veryused to pull ink evenly across the screen mesh.
tightly stretched over it. It will be used to burn your10. PLASTISOL.
seps into and to print on the actual shirt.The type of ink used for screen printing. The ink has
4. MESH.unique properties, for example, it will not dry even
This is the material which is stretched over the silkwhen left out until it is cured under a heat source of
screen frame itself, (as in number 3 above). This320 degrees.
mesh material, as its name suggests, has holes in it11. FLASH UNIT.
that can vary in size. The holes allow ink to flowA device used to dry ink enough to print another
through onto your fabric, in varying quantitiescolor on top of it, but not enough to completely cure
depending on your t-shirt design. Different screensit. It is essential when printing colors on top of each
have different mesh counts. The lower the number,other.
the more ink it allows in.12. PALLET.
5.EMULSION.A piece of rounded wood that you place the shirt on
This is a substance that when put into the screen,to be printed. There are various sizes to fit various
and dried in a dark room it blocks the mesh,jobs.
preventing the ink flowing through onto your fabric.13. AUTO PRESS or “AUTO”.
In areas where the emulsion hardens (by exposureThis screen printing press is a very large piece of
to bright light), the screen is blocked so no ink canequipment that once set up properly, will print up to
pass through. This is imperative to ensure that14 colors automatically. All you have to do is put the
nothing other than the image you intend to printshirts on the pallets and take them off.
appears on the final print.14. CONVEYOR DRYER.
6. COAT THE SCREEN.A large dryer that has a conveyor belt on it so shirts
This simply means putting the emulsion onto thepass through it and then out the other end.
screen before you begin to burn your artwork to theI hope you find this helpful!
silkscreen. See number 5.