Screenprinting
Discount Qualified
Published: March 27, 2026
Video Description
Have you ever tried printing a 4 color process design on a black t-shirt only to have it look dull or muddy? You are not alone. In this video, we dive deep into why CMYK printing on dark garments is one of the biggest challenges in screen printing.
We explore the science of ink transparency and why a standard plastisol white underbase often fails to deliver the results you see on your monitor. From the "suction cup" effect that causes fibrous textures to the production nightmare of flashing six times per shirt, we cover everything you need to know before you pull the squeegee on your next dark garment project.
What you will learn in this video:
Why transparent CMYK inks struggle to sit on smooth plastisol bases.
How to properly reduce white ink for high mesh counts like 305.
The difference between wet on wet printing and the "Flash Trap."
Why your reds turn pink and your greens look washed out.
A sneak peek into why discharge underbases might be the ultimate solution.
Shop the Screen Printing Supplies Used in This Video:
Avient ASI 4 Color Process Ink Set: https://www.screenprinting.com/products/avient-asi-process-ink-set
305 Mesh Aluminum Screens: https://www.screenprinting.com/products/baselayr-premium-red-glue-23x31in-aluminum-screen-printing-frame
Avient Soft Hand Clear Additive: https://www.screenprinting.com/products/avient-k2922-infinite-fx-soft-hand-clear
Shop All Screen Printing Inks: https://www.screenprinting.com/collections/screen-printing-inks
0:00 Why CMYK on black garments is so difficult
0:15 Prepping a 305 mesh underbase for high detail
0:30 Why transparent inks do not stick to plastisol
1:15 The suction cup effect: Why your ink is lifting
1:40 Testing the Print Flash Print method on dark shirts
2:40 Final results and the discharge alternative
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