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Cationic Dyes  |  Disperse Dyes  |  Union Dyes

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disperse dye is even used by young children to make designs on paper, which can then be transferred to polyester fabric, or other synthetics, with a hot iron. The possibilities are endless, using fabric crayons, rubber stamps, painting, and even screen printing.
These dyes were originally developed for the dyeing of cellulose acetate, and are substantially water insoluble. These dyes are finely grounded in the presence of a dispersing agents and then sold as a paste, or spray-dried and sold as powder. These can also be used for dyeing nylon, cellulose triacetate, polyester and acrylic fibers. In some cases, a dyeing temperature of 130 °C is required, and a pressurized dye bath is used for this purpose. The very fine particle size gives a large surface area that aids dissolution to allow uptake by the fiber. The dyeing rate can be significantly influenced by the choice of dispersing agent used during the grinding.

Why is dyeing Polyester preferred with Disperse dye?

Polyester generally requires the use of disperse dyes. Other methods of dyes leave the color of polyester almost entirely unchanged. While novices happily charge into dyeing with acid dyes (for wool or nylon) and fiber reactive dyes (for cotton and rayon), often with the most effective results, the immersion dyeing of polyester is a different story.

Sources for Disperse Dye

As dyeing polyester is very less popular among artists and crafts persons than the dyeing of cotton or wool, there is a few providers of disperse dyes for home or studio use. Among them are, in the US, PRO Chemical and Dye (PRO chem), and Ajo Dyes, Batik Oetoro and KraftKolour in Australia, and Kemtex and Rainbow Silks in the UK. See Sources for Dyeing Supplies for contact information.

Disperse dyes work excellent on synthetics, of course - that's what it's for. Only wool, rayon, silk, and cotton refuse to take it. Nylon extensively prefers disperse dye. All others fibers which are synthetic that dyed with disperse dye, so there is some darkness behind the mostly undyed natural fibers.


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