Bleaching and dyeing; fluid treatment and chemical modification – Pattern effect dyeing – process – compositions – or products – Cross dyeing
Patent
1986-06-25
1987-12-08
Lieberman, Paul
Bleaching and dyeing; fluid treatment and chemical modification
Pattern effect dyeing, process, compositions, or products
Cross dyeing
8480, 8485, 8185, 8188, D06P 500
Patent
active
047116404
ABSTRACT:
Processes for producing multicolor crossdyed cellulosic fabrics which are fully or partly crosslinked are disclosed. These processes include: (1) 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, unreactive dyestuff dyebath to dye the untreated areas and produce a bicolored fabric, (2) crosslinking fabric areas with a grafter cationic group and then the remaining areas with an anionic group; immersing in an acidic, anionic dyebath to dye the cationic areas and the immersing in a different colored cationic dyebath to dye the anionic areas and produce bicolored fabric, and (3) preselecting and treating areas of fabric to be cationic, anionic and untreated; immersion dyeing as above the cationic, untreated and then the anionic areas of fabric to produce a multicolored fabric.
REFERENCES:
patent: 3755046 (1973-11-01), Harper, Jr. et al.
patent: 3800375 (1974-04-01), Harper, Jr. et al.
patent: 3847542 (1974-11-01), Harper, Jr. et al.
patent: 3960477 (1976-06-01), Harper, Jr. et al.
Lieberman Paul
McConnell David G.
McNally John F.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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