Polyester fabric dyed with monoazo dyestuffs

Details Polyester fabric dyed with monoazo dyestuffs Polyester fabric dyed with monoazo dyestuffs

1975-02-05

1977-05-31

Schofer, Joseph L.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8179, 8DIG4, C09B 2700, D06P 102

Patent

active

040266630

ABSTRACT:
Polyester fabric is dyed with azo dyes made by coupling an appropriate diazotized aminobenzene into a coupler prepared by reacting 2-chloroacetylchloride or 3-chloropropionylchloride with 2 moles of N-alkyl, N-cyanoalkyl, or N-benzyl-substituted aminobenzene. This class of azo dyes, when appropriately dispersed, produces dyeings on aromatic polyester fabrics with excellent substantivity, outstanding sublimation fastness, and good fastness to light. The dyes are applied to polyesters, such as polyethylene terephthalate, by carrier dyeing, pressure dyeing, and thermofixation methods.

REFERENCES:
patent: 2346013 (1964-04-01), Dickey

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