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Title:
REACTIVE DYE TRANSFER DYEING METHOD FOR DENIM
Document Type and Number:
WIPO Patent Application WO/2022/126955
Kind Code:
A1
Abstract:
The present invention relates to a reactive dye transfer dyeing method for denim. The method comprises: 1) performing desizing treatment on raw denim gray fabric to obtain denim gray fabric; 2) applying a dyeing promoting solution to the front side of the denim gray fabric to obtain a front side with a wet coating; 3) printing reactive dye ink on a first set of ink transfer rollers or ink transfer blanket belts by using a first set of printing plate rollers of a transfer dyeing apparatus; 4) enabling the front side with the wet coating obtained in step 2) to be in tight fit and in pressure contact with the first set of ink transfer rollers or ink transfer blanket belts in step 3), so that the reactive dye ink is transferred to the front side from the first set of ink transfer rollers or ink transfer blanket belts, and drying the front side to achieve coloring of the front side of the denim gray fabric; 5) applying the dyeing promoting solution to the back side of the denim gray fabric to obtain a back side with a wet coating; 6) printing the reactive dye ink on a second set of ink transfer rollers or ink transfer blanket belts by using a second set of printing plate rollers of the transfer dyeing apparatus; 7) enabling the back side with the wet coating obtained in step 5) to be in tight fit and in pressure contact with the second set of ink transfer rollers or ink transfer blanket belts in step 6), so that the reactive dye ink is transferred to the back side from the second set of ink transfer rollers or ink transfer blanket belts, and drying the back side to achieve coloring of the back side of the denim gray fabric; and 8) performing post-treatment on the denim gray fabric, the front side and the back side of which are already colored, to obtain a denim product.

Inventors:
CHUNG PO-WEN (CN)
Application Number:
PCT/CN2021/089157
Publication Date:
June 23, 2022
Filing Date:
April 23, 2021
Export Citation:
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Assignee:
NEWTECH TEXTILE TECH DEV SHANGHAI CO LTD (CN)
International Classes:
D06P1/66; D06P1/38; D06P3/66
Foreign References:
CN112647320A2021-04-13
CN108342914A2018-07-31
CN107964815A2018-04-27
JPS60119280A1985-06-26
CN110699983A2020-01-17
CN108239831A2018-07-03
CN109487579A2019-03-19
CN107956153A2018-04-24
CN105133390A2015-12-09
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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