Sizing agents from indigo blue denim fabric
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United States of America Patent
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-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Sep 9, 1996
filing date -
Sep 9, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A denim fabric sheet is drawn into a folded rope configuration, and passed through an impact mechanism and an abrasion mechanism to give the fabric sheet a worn-out stonewashed appearance. Prior to passage through the impact mechanism the fabric sheet is coated with a water solution containing about five percent lubricant, four percent surfactant and about one percent antimigrant. After passage through the impact mechanism, the fabric sheet is rinsed and coated with a more dilute water solution about one percent lubricant, one quarter percent surfactant, about one half percent migrant, and about one half cellulase enzyme. The process is controllable to produce a consistent product appearance and fabric texture.
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