Dye Sublimation Process - All

Dye 100 polyester


We dye polyester with pigment dye stuff. Pigment dye is a want a colored dust which we defuse into polyester .
For dyeing, we make a dye bath comprising pigment, urea, emulsifiers plus some other additional chemicals. First the textile passes through dye shower to pick up the information of dye bathtub, followed closely by a pressure nip roller to literally fix the particles with its destination.
Then, it gets into the curing chamber which works at 150-170C. At this temperature, polyester swells and little skin pores opens up on it. And, since we are in need of pigment dye to actually transfer to the textile we truly need a transfer representative. Anything pigment dye can drive onto get into textile skin pores. At these types of temperature, urea decomposes to offer water particles (it absorbs from water) and the ones water particles are used by pigment by pigment dye to go into textile skin pores. This whole process of curing takes 5-8mins in continuous procedure. And, after healing, the material arrives hot and cools straight down in room temperature . Then, it's cleaned a few times to remove excess dye and ready to go. Washing can be do at the same time after healing.

The fixation /curing of dye into fabric is a mixture of operating on liquid and capillary diffusion into textile . And that's why polyester textiles never ever fades. Because dye is obviously inside textile. And because polyester is oil/petroleum based textile, we can utilize fuel to get rid of difficult stains from the textile . And do not ever before make use of heating way to remove spots. (talco powder plus heated iron to get rid of oil stains).

And, when we like to color small volume of polyester fabric or if it really is knitted textile, fragile to dye, after that, we utilize group dyeing machine known as Jigs. It is a top heat force horizontal cylindrical reactor, in which a roll of fabric is filled like tape in cassettes plus it rotates for one time to 90min under questionable and temperature to literally force dye into textile.

The reason we utilize pigment dyes (often known as direct dyes) for polyester? Because polyester is quite steady and does not effortlessly react with dye things, so we need force dye into it. There are a few differences in pigment and direct dyes(typically used for cotton fiber materials). All pigment dyes are direct dyes although not all direct dyes tend to be pigment. Because, specifically for polyester, that has really compact construction, we require a dye with small particle size such that it can simply get into material.

And, due equivalent explanation of tiny particle dimensions, we can not make use of pigment dye on Cotton. Because cotton features big pores and dye particles can easily go and. Come-out leading to exorbitant color bleeding.

If you have cotton polyester fabric, it gets interesting. You first dye either cotton fiber or polyester then other one in detail by detail technique. Sequence sometimes is dependent on kind shade (light color is dyed very first), cotton dyes type etc.



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