Sunday, April 11, 2010

Dying with Disperse Dyes

Definition:
          Disperse dyes are free of ionizing groups water insoluble and suitable for dyeing hydrophobic textile materials from colloid dispersion. The dye is so called because it is molecularly dispensed and dispersing agent is necessary for dying with dyes.


Properties:
1.     Non – ionic in nature.
2.     Insoluble in water.
3.     Applied in Acidic condition (pH @ 4.5-5.5)
4.     Dispersing Agent is used for making dye – dispersion.
5.     Fastness properties good to excellent.
6.     Suitable for acetates, polyamide and polyester fibers.

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