Scouring Process for Ring Dyed Denim Fabric and Material Produced Thereof
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United States of America Patent
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Issued Date -
Mar 11, 2021
app pub date -
Aug 4, 2020
filing date -
Sep 9, 2019
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Abstract
Ring dyeing of yarn with indigo dye to produce an improved white core, An outer surface of the yarn is scoured prior to applying the indigo dye, and then applying the indigo dye is applied. Scouring parameters of the dyeing are used to limit a penetration of the indigo into the white core, so that the white core has mostly sections of white yarn, and the yarn has indigo dye on the outer surface, said parameters comprising limiting scouring parameters to at least 10% below current parameters used to scour the yarn.
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