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Dye sublimation is a printing method for white or rather light colored textiles made of polyester.
Sublimation is a term mainly known from thermodynamics and describes a physical change of state from a solid to a gaseous state whitout beeing liquid.
When we talk about dye sublimation as a printing method for textiles, it means that we print a special sublimation ink on a transfer paper.
This will be positioned and pressed on the textil with an heat press.
While applying about 190°C for one minute the ink vaporized into the polyester fiber.
The biggesst advantage is the high washability and a not noticeable tactile. This printing method only works with light colored polyester textiles.
If the graphic is black, it's no problem to print on colorful polyester textiles.