Dyeing finishing process of elastic jean fabric

A denim fabric, elastic technology, applied in dyeing, dry-cleaning fiber products, textiles and papermaking, etc., can solve the problems of high dyeing cost and uneven dyeing, and achieve the effect of shortening dyeing time, short dyeing time and cost reduction

CN104032595AInactive Publication Date: 2014-09-10TAICANG QISHENG CHEM FIBER FACTORY
6 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-09-10
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to the textile field and in particular relates to a dyeing finishing process of an elastic jean fabric. The dyeing finishing process comprises the steps of material selection, pretreatment, water washing, slacking treatment, dyeing, water washing, color fixation, heat setting and after-treatment. The dyeing finishing process is characterized in that the water washing and slacking treatment steps are added after the pretreatment step so that the jean fabric is more stable and subsequent dye homogeneity can be achieved more easily; in addition, as the color fixation step is added after the second time of water washing to further fix the dyeing of the fabric, the dyeing effect of the fabric can be improved; the dyeing finishing process has obvious beneficial effects and is suitable for popularization and utilization.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of textiles, in particular to a dyeing and finishing process for elastic denim fabrics. Background technique

[0002] For the printing and dyeing industry, the "color difference problem" is one of the important indicators for judging the dyeing results. Denim fabrics are widely loved by the public due to their wearing comfort and wear resistance. However, it is well known that denim fabrics are made of interwoven cotton yarn warp and weft. Due to the characteristics of the material itself, it is easy to cause problems such as uneven dyeing and high dyeing costs. In the textile industry with increasing market competition, such problems will undoubtedly become the development of denim fabrics. important hindrance. Therefore solving its uneven dyeing and reducing the dyeing cost are one of the most important problems to be solved at present. Contents of the invention

[0003] Purpose of the invention: The purpose of...

Examples

Embodiment 1

[0030] A dyeing and finishing process for elastic denim fabric, comprising steps:

[0031] (a) Material selection: select kapok yarn with a weight percentage of 35%, pure cotton yarn with 55%, and elastic fiber with 10% to interweave warp and weft yarns on a loom to weave elastic denim fabric;

[0032] (b) Pre-treatment: desizing, scouring and mercerizing the elastic denim fabric;

[0033] (c) Washing: Wash the elastic denim fabric with clean water at room temperature so that the pH of the denim fabric is 6.5;

[0034] (d) Relaxation finishing: dipping, tensioning and washing the elastic denim fabric, the washing is carried out with a solution including sodium perborate 1.5g / L, polyvinylpyrrolidone 0.5g / L, and zeolite 1.3g / L ;

[0035] (e) Dyeing: Immerse the stretchy denim fabric after relaxation and finishing in a solution containing 2.3g / L sodium hydroxide, 33g / L sodium hydroxide, 3.2g / L urea, 0.7g / L dichloro-s-triazine, and 13g / L soda ash. L. In the dyeing solution of p...

Embodiment 2

[0047] A dyeing and finishing process for elastic denim fabric, comprising steps:

[0048] (a) Material selection: select kapok yarn with a weight percentage of 35%, pure cotton yarn with 55%, and elastic fiber with 10% to interweave warp and weft yarns on a loom to weave elastic denim fabric;

[0049] (b) Pre-treatment: desizing, scouring and mercerizing the elastic denim fabric;

[0050] (c) Washing: wash the elastic denim fabric with clean water at room temperature, so that the pH value of the denim fabric is 7;

[0051] (d) Relaxation finishing: dipping, tensioning and washing the elastic denim fabric, the washing solution in the washing process includes sodium perborate 4g / L, polyvinylpyrrolidone 2.4g / L, zeolite 1.3g / L;

[0052] (e) Dyeing: Immerse the stretchy denim fabric after relaxation and finishing in a solution containing 3.5g / L sodium hydroxide, 36g / L sodium sulfate, 4.2g / L urea, 0.9g / L monochloro-s-triazine, and 15g / L soda ash. L. In the dyeing solution of pene...

Embodiment 3

[0064] A dyeing and finishing process for elastic denim fabric, comprising steps:

[0065] (a) Material selection: select kapok yarn with a weight percentage of 35%, pure cotton yarn with 55%, and elastic fiber with 10% to interweave warp and weft yarns on a loom to weave elastic denim fabric;

[0066] (b) Pre-treatment: desizing, scouring and mercerizing the elastic denim fabric;

[0067] (c) Washing: Wash the elastic denim fabric with clean water at room temperature so that the pH of the denim fabric is 7.5;

[0068] (d) Relaxation finishing: dipping, tensioning, and washing the elastic denim fabric. The washing solution in the washing process includes sodium perborate 5g / L, polyvinylpyrrolidone 3g / L, and zeolite 1.8g / L;

[0069] (e) Dyeing: Immerse the elastic denim fabric after relaxation and finishing into reactive dyes containing 4g / L sodium hydroxide, 40g / L sodium sulfate, 5g / L urea, 1.5g / L compounded with chloro-s-triazine and vinyl sulfone , soda ash 16g / L, penetran...