Dye Sublimation,what Is It?

Dye Sublimation,what Is It? - GetWin Industrial Co.,LTD

dye sublimation printing

I can't tell you how many times I have spent 15-30 minutes with a customer or with someone wanting to get into the business of dye sublimation, just explaining what a dye is, let alone what dye sublimation printing is.   When I was growing up, if you wanted something to look different after you had it for a while you went to the store and bought dye and changed the color (always dying the item darker, because you can't add color and make it lighter), or if you needed shoes to match your bridesmaid dress you dyed them.  The same principal applies for dying your hair.  I guess it is a sign of the changing times but people today don't seem to understand what a dye is even though our world of cloth and clothing revolves around it.  I often want to respond to the question of "What is dye sublimation?" with "It's magic!".
Dye: to impregnate color into a material.  Many times this color change is permanent.
Sublimation: a change directly from the solid to the gaseous state without becoming liquid.
Polymer: consisting of large molecules made up of a linked series of repeated simple molecules.
Dye sublimation:  Solid dye particles are changed into gas using heat and pressure, then bond with any polymers present, and change back into a solid.
In today's market when people talk about dye sublimation transfers, they are usually speaking about output from inkjet printers.  The problem with inkjet printers and dye sublimation is that most of the printers spray their ink out of tiny nozzles that are easily clogged by the relatively large dye sublimation particles. Epson printers are the most common brand of inkjet printers used for dye sublimation transfers, due to their advanced printer head technology, print density, and low cost.

dye sublimation printing
The confusions comes from the fact that we are using inkjet printers but we don't use ink in them. The fluid that is stored in the inkjet cartridge is just the carrier of the dye.  The carrier stays on the paper, it is only the dye that migrates from the paper to your substrate.  The dye has little or no color until heated, so what you see on the paper usually looks nothing like the final transferred image.
Other forms of dye sublimation transfers are done with thermal printers, offset printers, monochrome laser printers, special made processors, and can even be done by screen printing transfers.
What's with these polyesters you mentioned in the definition, you ask?  The dye particles that are used for this type of dye sublimation are designed to only bond with polymers, so the higher the polyester content in the material the more dye that will bond giving you a brighter image.
So that's all there is to it?  Basically, yes.  The other questions that continue to come up all boil down to understanding the dyeing process.

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