Bleaching and dyeing; fluid treatment and chemical modification – Pattern effect dyeing – process – compositions – or products – Random pattern effect – e.g. – space dyeing – etc.
Patent
1998-03-06
2000-02-01
Liott, Caroline D.
Bleaching and dyeing; fluid treatment and chemical modification
Pattern effect dyeing, process, compositions, or products
Random pattern effect, e.g., space dyeing, etc.
8440, 8499, 81512, 28212, 28219, D06B 102, D06P 515
Patent
active
060197994
ABSTRACT:
This invention relates to a method and apparatus for space-dyeing yarns. A yarn sheet passes over a yarn-driven roll equipped with a digital sensor that tracks the position of the sheet as it then passes through a dyeing apparatus. A computer precisely controls the spray application of dyes at the desired locations on the length of the yarn sheet. Undyed areas and areas of unwanted overlap of dyes are virtually eliminated, reducing the amount of off-quality yarn produced versus conventional methods. Sprayed dye droplets are collected and reused.
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Derwent Abstract of FR 2,650,311, Chouperba, Feb. 1991.
Brown Robert S.
Pascoe, Sr. William M.
Fisher George M.
Liott Caroline D.
Moyer Terry T.
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