How screens are made
Before a single t-shirt is printed, there's a screen. Before the screen, there's a film. Before the film, there's a decision โ mesh count, emulsion type, exposure time. This is where the quality of your print actually begins.
๐ฅ Video coming soon โ we're filming our screen-making process behind the scenes.
โก In 30 seconds
- What a screen is: A fine mesh stretched over a frame, with a stencil "burned" into it using light.
- Why it matters: The quality of your printed logo comes from the quality of the screen.
- Time to make one: 45โ90 minutes per colour โ start to finish.
- One screen = one colour. A 4-colour design needs 4 screens.
- Reusable: Frames and mesh can be cleaned and reused โ but each new design needs a new coating.
- Why we don't outsource: Every screen is made in-house so we control quality end-to-end.
The 7 steps of screen making
Mesh selection
The mesh is a woven polyester fabric stretched over the frame. It comes in different thread counts โ measured in threads per inch (TPI). Higher mesh = finer detail but thinner ink deposit. Lower mesh = thicker ink deposit but less detail.
We pick mesh based on the design. Bold logos on t-shirts typically use 110โ160 TPI. Fine detail work uses 180โ230 TPI.
Frame stretching
The mesh is stretched tight across an aluminium frame. Tension matters โ typically 18โ25 Newtons/cmยฒ. Uneven tension means uneven ink deposit, which shows up as a patchy print.
We check tension with a tension meter before moving to the next step.
Emulsion coating
The screen is coated with a light-sensitive emulsion โ a liquid that hardens when exposed to UV light. We apply 1โ2 coats on the print side and 1โ2 coats on the squeegee side using a coating trough.
We aim for 10โ15 microns of emulsion over mesh for standard prints. Screen is dried horizontally in a dark room at 30โ40ยฐC for 20โ40 minutes.
Film positive preparation
Your design is printed onto a transparent film at 720โ1440 DPI. The black areas on the film block UV light; the clear areas let it through. For multi-colour designs, we print one film per colour.
Films are registered to each other using crosshairs so every colour lands exactly where it should on the final print.
Exposure
Screen + film go into a vacuum exposure unit. UV light is applied for a calculated time โ typically 2โ8 minutes depending on emulsion type, mesh, and light wattage.
Where UV hits the emulsion through the clear parts of the film, the emulsion cross-links and hardens. Where the black film blocks UV, the emulsion stays soft and unhardened.
Washout
We spray the screen with water using a pressure washer. The unhardened emulsion washes away, leaving open mesh where ink will pass through.
Screen is dried at 40ยฐC for 15โ30 minutes. This is where the design literally appears.
Tape & block-out
Any areas we don't want ink to pass through โ frame edges, registration marks, pinholes โ are taped off with screen tape or blocked with additional emulsion.
The screen is now ready for the press.
Why we don't outsource screen making
Many print shops send their screen-making to third parties. It's faster on paper. In practice, it's where quality quietly slips.
A poorly made screen โ wrong mesh, uneven emulsion, over-exposed or under-exposed โ doesn't fail loudly. It just quietly produces a print that isn't quite right. The edges aren't crisp. The ink deposit is uneven. The colours don't quite register. Nobody notices until it's on the shirt.
That's why every screen we use is made in-house. It lets us:
- Control the mesh count for each specific design
- Adjust emulsion thickness for the ink we're using
- Verify exposure time against our equipment
- Catch problems before the screen goes to press
- Re-make a screen immediately if something is off
The extra control is invisible to you โ until you compare the finished print to what other shops produce.
Quick facts
Time per screen
45โ90 minutes
Mesh used
110โ230 TPI
Emulsion thickness
10โ15 microns
Exposure time
2โ8 minutes
One screen =
1 colour
Reusable?
Yes โ re-coated each time
Common questions
What is a screen printing screen?
How long does it take to make a screen?
How many colours can one screen print?
Can a screen be reused?
What happens if a screen is made wrong?
Do you keep our screens for re-orders?
Ready to see the final print?
Send us your design and we'll take it from film โ screen โ finished garment. Free mockup, firm quote within 24 hours.