High humidity in the screen room slows emulsion drying. At the press, hot, dry air can cause water-based ink to dry in and clog the mesh. After printing, print durability depends on effective moisture removal and the cure conditions required by the ink.

Printing the same white logo on a cotton shirt, a red polyester shirt and a polypropylene (PP) bottle raises three different concerns. On cotton, the print needs to balance coverage and hand feel. On red polyester, dye can migrate into the white ink film and turn the print pink. On a PP bottle, ink adhesion depends on the plastic grade, the condition of the surface and any pretreatment required before printing.

This guide helps diagnose defects based on when they appear, from the print stroke through drying, curing, and wash testing. Each section explains what to look for, what to check, and how to correct the problem before resuming production.

Available in a wide variety of colors and patterns, these foils are suitable for numerous fashion applications, including clothing, bags, accessories, and other textile products.

Proper storage helps screen printing inks stay uniform, retain their viscosity, and transfer consistently through the mesh. Print shops should control storage temperature, keep containers tightly sealed, separate reclaimed ink from unused ink, and track pot life after adding a hardener or activator.

Plastisol ink remains workable on the screen during printing and is available in a range of high-opacity formulations. Water-based inks include formulations that produce a thin print with a soft hand and high-solids formulations designed to cover dark fabrics. The two ink systems differ in on-press handling and dryer settings.