DYES - Technology Networks
Transcript of DYES - Technology Networks
DYES
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Dyes Soluble in water
Acid Dyes
The attachment to the fibers is at least
partially due to salt formation between the
anionic groups in the dye and the cationic
groups in the fibers.
Acid Dyes
Azoic Dyes
03
01
02
Basic Dyes
Acrylic fibers
Wool
Paper
Disperse Dyes
Disperse Dyes
Structure 1
Bond 2
Use 3
Disperse Dyes
Sulfur Dyes
Insoluble
Vat Dyes
CouplerCoupler
Coupler
01
02
0304
05
Direct Dyes
Direct Dyes
• Direct or substantive dyeing is normally carried out in a neutral or slightly alkaline dye bath, at or near boiling point, with the addition of either sodium chloride or sodium sulfate or sodium carbonate.
Neutral Dyes
Vinylon
Nylon
Silk
Wool
Tussah silk
Neutral Dyes
Pigments
Pigments
Solvent Dyes
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