Bleaching and dyeing; fluid treatment and chemical modification – Forming – shaping – or reshaping with dyeing process or product
Patent
1983-03-03
1984-06-05
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Forming, shaping, or reshaping with dyeing process or product
8494, 8922, 8930, D06P 700
Patent
active
044526075
ABSTRACT:
Fabrics formed at least partially of highly shrinkable fibers, such as polyester fibers, are dyed in a process which provides a number of significant economic and processing advantages over conventionally used dyeing processes, such as jet dyeing, producing a product with enhanced physical properties. The process involves first subjecting the fabric to a preparatory heat treatment step under conditions in which the fabric is allowed substantially complete freedom to relax and shrink, after which the fabric is wound onto a dye beam and beam-dyed. Following dyeing the fabric may be subjected to finishing operations, such as napping, and then to a tentering operation in which the fabric is stretched widthwise to restore a predetermined width, while being heated to a temperature greater than that used in the preparatory heat treatment step.
REFERENCES:
patent: 4238191 (1980-12-01), Hussamy
patent: 4308025 (1981-12-01), Hussamy
Du Pont Technical Information Bulletin Q-1, "Dyeing and Finishing Warp Knit Fabrics of Qiana Nylon"-Jun. 1975.
Du Pont Technical Information Bulletin Q-3, "Knitting, Dyeing, and Finishing Weft Knits of Qiana Nylon"-Aug. 1976.
Clingman A. Lionel
Collins & Aikman Corporation
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