Manufactured fibers

Manufactured fibers

Industry: Textiles

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Manufactured fibers

Azo dyes

Textiles; Manufactured fibers

Dyes characterised by the presence of an azo group (-N=N-) as the chromophore. Azo dyes are found in many of the synthetic dye classes.

Exhaustion

Textiles; Manufactured fibers

During wet processing, the ratio at any time between the amount of dye or substance taken up by the substrate and the amount originally available.

Pressure dyeing

Textiles; Manufactured fibers

Dyeing by means of forced circulation of dye through packages of fiber, yarn, or fabric under superatmospheric pressure.

Hydrogenation

Textiles; Manufactured fibers

The process of passing hydrogen into an unsaturated chemical in the presence of a catalyst to convert the material to a more saturated state (i.e., containing more combined hydrogen.)

Hydrolysis

Textiles; Manufactured fibers

A double decomposition reaction involving the addition of the elements of water and the formation of an acid and a base, an acid and an alcohol, or an acid and phenol.