Black DR
Disperse Dyes
Disperse dyes are non-ionic, water-insoluble fine particle colorants exclusively used for dyeing hydrophobic synthetic fibers — primarily polyester, but also acetate, triacetate, and nylon — applied from an aqueous dispersion at high temperature (130°C) under pressure in jet dyeing machines, or by thermosol pad-bake processes for continuous polyester fabric dyeing. At HT dyeing conditions, disperse dye molecules diffuse from the aqueous dispersion into the swollen hydrophobic polyester fiber matrix and are physically trapped within the polymer on cooling, producing dyeings with excellent wash, light, and sublimation fastness across a complete color range. The disperse dye range encompasses high-energy (SE) types for deep, wash-fast shades and low-energy (E) types for pastel shades and thermosol printing.
Key Applications
- HT exhaust dyeing of polyester fabric and yarn in jet dyeing machines
- Thermosol continuous dyeing of polyester-cotton blended woven fabrics
- Dyeing of polyester microfiber, stretch fabrics, and technical textiles
- Acetate and triacetate fabric dyeing at lower temperature conditions
Frequently Bought Together
Direct Dyes
Direct dyes are anionic water-soluble azo and stilbene colorants that exhaust directly onto cellulosic fibers from a neutral or weakly alkaline electrolyte bath without the need for chemical fixation auxiliaries, making them among the simplest and most cost-effective dye classes for cotton, viscose, and linen in commodity shades across a full color range.
Textile Dyes & AuxiliariesIndigo Blue
Indigo Blue is the iconic vat dye responsible for the distinctive blue color of denim fabric, applied to cotton warp yarns by continuous rope or slasher dyeing using a sodium hydrosulfite reducing bath followed by air oxidation in multiple dip-nip cycles to build up the characteristic surface-dyeing that produces the ring-dyeing effect essential to authentic denim fading behavior.
Textile Dyes & AuxiliariesSulphur Dyes
Sulphur dyes are a broad class of inexpensive, water-insoluble colorants for cellulosic fibers that are applied in solubilized leuco form from an alkaline sodium sulfide reducing bath, exhaust onto cotton at moderate temperatures, and are then re-oxidized within the fiber to form their insoluble colored structure.