What dyes are used for dyeing polyester fabrics?
- Jun 08, 2018 -

Polyester fabric dyeing disperse dyes, polyester, also known as polyester, full name polyethylene terephthalate, is a completely non-hydrophilic organic synthetic fiber. Therefore, the traditional direct, acidic, reactive and other water-soluble dyes cannot be adsorbed on such hydrophobic fibers and thus cannot be dyed. The reduction and sulfidation dyes, because of their huge molecules and their associated associative particles, are even more impenetrable in the interior of polyester macromolecules with high crystallinity and compact structure.
The disperse dye is a small molecule pigment with no water-soluble group, and has good affinity with hydrophobic polyester, and the molecule is small, so it can be “drilled” into the case where the polyester fiber expands under the influence of high temperature. Polyester fiber is a kind of gap. Therefore, it is only with this dye that it can dye polyester.

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