After the shirt is printed we place it on the dryers moving belt. The temperature inside the dryer is about 380 degrees. The shirt will only stay inside of the drying chamber for about 37 seconds. Enough to heat the shirt and ink to about 335 degrees which bonds the ink to the garment.
Another person is inspecting the shirts for quality as it makes it way to the end of the oven, then folds the garments in dozens.
Screen Printing ink consist of four major components. Pigment, (for the color). Oil (for the base). PVC's and Plasticizers. When heated to 330 degrees, The oil evaporates and the plasticizers turn the PVC into plastic.
Yes, That print on your shirt is a thin coat of plastic bonded to the fabric of your shirt.
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