September '15

For the Business of Apparel Decorating

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76 || P R I N T W E A R S E P T E M B E R 2 0 1 5 variations in the quality of many garments, a corresponding wide variation with bleed- ing problems exists. Once again, testing is required to assure a successful production of salable prints. FABRIC DAMAGE The last of the print related issues is often overlooked fabric product damage, and, again, heat is our problem. Unlike natu- ral products that can scorch from excessive heat, synthetic fibers are susceptible to melt, weaken, and even crust. Scorching can often be removed, but damage from heat and even color set change is perma- nent and renders the garment unsellable. Each and every type of garment can have a range of temperatures where damage is caused and will fluctuate from item to item. This delicate dance to keep the tem- perature high enough to make and keep the ink layer adhered to the fabric, achieve washfastness, and keep the temperature low enough to not cause sublimation of the dye is a challenge and should be ap- proached with serious determination. INKS The inks themselves all share a common approach: gain printability, washfastness, and color opacity of printed colors without having to go hot enough to cause the dye to sublimate or damage the fibers. Some even have dye migration-blocking chemicals in- cluded for good measure. For this task, we have several available choices: plastisol and PERFORMANCE INKS

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