DYE RANGE, IMPROVED DYE RANGE PROCESSES, AND YARNS AND FABRICS PRODUCED THEREFROM
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United States of America
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Issued Date -
Apr 21, 2022
app pub date -
Oct 19, 2021
filing date -
Oct 19, 2021
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Abstract
The present invention relates to yarn dyeing, such as denim dyeing. A process provides a dyed yarn having reduced dye penetration and a white core at lower cost. The improved process for yarn dyeing is referred to herein as the CleanKore technology. The CleanKore technology improves one or more steps in dye ranges to achieve dyeing of the yarn while retaining a white core at the center of the yarn. When viewing a cross-section of a yarn, the peripheral portion is dyed while the center remains white (not dyed). The CleanKore technology modifies the scouring stage (or phase), the scour rinsing stage, the dyeing stage, and/or the dye rinsing phase of existing dye ranges. The modifications may be applied individually or any combinations thereof to the existing dye range.
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