Aftertreatment of dyed cellulosic materials

Details Aftertreatment of dyed cellulosic materials Aftertreatment of dyed cellulosic materials

1983-03-09

1985-07-30

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

8495, 8442, 8551, 8552, D06M 1552, D06M 1560, D06P 502

Patent

active

045319464

ABSTRACT:
Wet and dry crocking are reduced on dyed textile cellulosic materials and their blends by aftertreatment with finish mixtures containing effective amounts of a reactive component and a blocked urethane prepolymer component. The reactive component is a polyamide, epoxidized polyamide, chain-extended polyamide, epoxidized chain extended polyamide, polyamine epoxidized polyamine or epoxidized polyalkylenimine and the blocked urethane prepolymer component is a reaction product of excess polyisocyanate and hydroxy terminated polyether or hydroxy terminated polyester whose reactive isocyanate groups are blocked. Finish mixtures are applied to the dyed textile material, dried and cured to improve wet and dry crockfastness.

REFERENCES:
patent: 3898197 (1975-08-01), Guise et al.
patent: 4313732 (1982-02-01), Teague et al.
patent: 4452606 (1984-06-01), van Diest

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