Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof – Cellulose fibers
Patent
1986-09-09
1988-05-10
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Chemical modification of textiles or fibers or products thereof
Cellulose fibers
8188, 8918, 8480, D06P 500, D06M 1334
Patent
active
047432667
ABSTRACT:
Process for producing smooth dry-cellulose containing fabrics with durable softness and dyeable properties are disclosed. Cellulose containing fabric is treated with a solution of crosslinking agent, acid catalyst and a longchain alkyl bishydroxyethyl quaternary amine salt additive. The resultant fabric is smooth-dry durably softened and can be dyed. Printdyeing is accomplished by selective application of the alkyl quaternary to a fabric padded with a crosslinking agent. This treatment is then followed by curing and dyeing. Differential dyeing is accomplished by first treating separate yarns with different solutions containing crosslinking agent with and without the alkyl quaternary, drying, knitting, curing and then dyeing the knitted fabric. Multicolored crossdyed cellulosic fabrics which are partly crosslinked are produced by crosslinking preselected areas of fabric with a grafted cationic group and leaving other areas untreated; immersing the fabric in an acidic anionic dyebath to dye the cationic areas and then immersing in a different colored alkaline, reactive dyestuff dyebath to dye the untreated areas.
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Clingman A. Lionel
Fado John D.
McConnell David G.
McNally John F.
Silverstein M. Howard
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