Direct Dyes and Disperse Dyes

By HARI -

Direct Dyes

Direct dyes are water soluble dyes. As the name suggests, these dyes are directly applied to the fabric from aqueous solution and are practically suitable for fabrics like cotton, rayon, wool, silk and nylon which from hydrogen bonds with water. Martius yellow and congo red are important example of this class of dyes.


Disperse Dyes

Disperse Dyes in the form of minute particles of a suspension diffuse into the fabric, get fixed and impart colour. Such dyes are used for dyeing synthetic fibres like polyesters, nylon and polyacrylo nitrile. Many anthraquinone disperse dyes are suitable for application to synthetic polyamide fibres.

T o know more about Dyes visit Chemicals in every day life: Dyes

Comments

  1. AnonymousAugust 13, 2013 at 11:13 PM

    thanks for the useful info about direct and disperse days

    ReplyDelete

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