Learn how professional printers reproduce photographs, gradients, shadows and detailed artwork using halftone dots.
One of the biggest questions we receive at Da Mouse Trap Graphics is why artwork sometimes has to be converted into halftones before it can be screen printed.
If you’ve ever wondered how a photograph, realistic portrait, airbrush effect, or smooth gradient ends up looking clean on a t-shirt using only a few ink colors, the answer is simple:
Halftones.
Rather than printing thousands of shades like an inkjet printer, screen printing creates the illusion of continuous tones by printing thousands of tiny dots. Your eye blends these dots together from a distance, making them appear as smooth gradients and shadows.
This printing technique has been used for decades in magazines, newspapers, comic books, posters, and apparel because it allows artists to reproduce detailed images with incredible consistency.
Whether you’re designing artwork yourself or preparing files for your screen printer, understanding halftones will help you create cleaner artwork and better finished products.
A halftone is a pattern of dots used to simulate lighter and darker values using only one ink color.
Instead of changing the ink itself, software changes:
Larger dots create darker areas.
Smaller dots create lighter areas.
When viewed from a normal distance your brain blends them together into smooth shading.
Think of it this way:
A television is made from thousands of tiny pixels.
A newspaper photo is made from thousands of tiny ink dots.
A screen printed halftone works exactly the same way.
Halftones make many types of artwork possible without requiring dozens of ink colors.
Benefits include:
One of the most important settings when creating halftones is Lines Per Inch (LPI).
The higher the LPI, the more detail the print can reproduce.
However, extremely fine halftones require:
Common examples include:
| Mesh Count | LPI Recommendation |
|---|---|
| 110 | 35-45 LPI |
| 156 | 45-55 LPI |
| 200 | 55-65 LPI |
| 230+ | 65-85 LPI |
Nearly every image can be converted, but higher resolution artwork always produces better results.
Yes. Gradients are usually converted into halftones before printing.
No.
Any ink color can become a halftone including white, gold, red, navy, fluorescent colors, metallic inks and specialty inks.
Yes.
Photographs are one of the most common uses for halftones.
The halftone itself doesn’t fade any differently than solid ink. Proper curing and quality inks are what determine long-term durability.
At Da Mouse Trap Graphics, we create production-ready halftone separations for apparel brands, musicians, businesses, artists, and print shops. Whether you’re reproducing vintage album artwork, detailed illustrations, simulated process color graphics, or photographic prints, we can prepare artwork that’s optimized for professional screen printing.
We also offer mockups, artwork cleanup, vector conversions, color separations, and complete screen printing services throughout Southern California.
