Polyester Ink Information

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I was recently ask about our Polyester ink and our Grey Barrier Ink. I thought this would be a good time for a new post and talk about something other than CornaVirus and Face Mask stuff.

Polyester shirt release this chemical when its ran through the oven called “polyester fuming”. This release of gas attaches itself to the ink that  is on top of it and discolors the ink.For example, this reaction will turn orange ink on black shirts into a muddy green. The weird part is that once it comes out of the oven, the apparel looks perfect but the “fuming” happens in hour to days. You just don’t know when the change happens. There are times we print the job perfect and let it sit for 2-3 days and open the box, its a different color!

SanMar and other vendor have shirts that are treated to release very minimum gas. The less mixture of polyester material in a shirt, the less of the fuming happening. The shirt that have the highest potential of “fuming” ones are the downtown LA or aftermarket one. Those have not been pre-treated and they release a LOT of gas. They were not created to be printed after production

There are 2 types of ink to help us to prevent this fuming. POLYESTER INK which is a white ink that help with mixed material shirts like 50/50, 60/40 shirts. This ink cost us x4 this cost of normal white. There is also a GREY BARRIER ink that helps block even more fuming even we suggestion this on 100% polyester ink. This ink also cost more than normal platisol ink.

Please see PDF for info-graphic for more information.

Poly Printing Infographic-1