Method for the reduction of color variation in space-dyed yarn
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United States of America Patent
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N/A
Issued Date -
Sep 26, 2002
app pub date -
Jan 25, 2001
filing date -
Jan 25, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for reducing variation in depth of shade, intensity and hue in space-dyed yarn comprises: injecting at least two liquid dye compositions into selected portions of a package of yarn to produce a yarn having different colors along the length of said yarn, preheating said yarn to a temperature of about 120.degree.-200.degree. F. using microwaves or radiofrequency, and heating said yarn to a temperature sufficient to fix said dye on said yarn.
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