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Dyeing method for multilevel-color jean yarns

A multi-layer, yarn technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of low energy consumption in room temperature dyeing, reduce production costs, shorten the process flow, etc., achieve simple and easy to control washing, reduce production costs, shorten The effect of the process

Inactive Publication Date: 2014-02-05
SHANDONG DAIYIN TEXTILE GROUP SHARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The denim yarn produced by the invention has bright color, good color fastness, pure shade, low energy consumption for dyeing at room temperature, and the high fastness coating reduces the number of indigo dyeing tanks, shortens the process flow, and reduces pollution discharge. It reduces the production cost, and at the same time solves the problems of light color and uneven dyeing caused by pure paint dip-dyeing, and makes full use of the advantages of paint, indigo and sulfur dyes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] Example 1: A continuous pad dyeing dyeing method of dope brilliant blue on 16s denim yarn. Follow the steps below to implement:

[0041] (1) Refining treatment of yarn

[0042] Caustic soda: 3g / L

[0043] Penetrant: 4g / L

[0044] Temperature: 60°C

[0045] (2) Cationic modification of yarn

[0046] Cationic modifier: 14g / L

[0047] Caustic soda: 6g / L

[0048] Temperature: 50°C

[0049] (3) Configuration of paint dye solution

[0050] Paint Brilliant Blue: 20g / L

[0051] Softener: 5g / L

[0052] Penetrant: 4g / L

[0053] Cross-linking agent: 4g / L

[0054] Binder: 15g / L

[0055] (4) Configuration of indigo dyeing solution

[0056] Indigo: 1.8g / L

[0057] Hydrosulfite: 0.7g / L

[0058] Caustic soda: 3.2g / L

[0059] (5) Production process:

[0060] Refining→washing→cation modification treatment→pre-baking→1 coat→4 coats of indigo→washing→sizing→drying

[0061] (6) Process parameters:

[0062] Surplus rate: 70%

[0063] Drying temperature: 120°C

[0064]Ind...

Embodiment 2

[0067] Example 2: A continuous pad dyeing method of pretreated Tu Feihong on 16s denim yarn. Follow the steps below to implement:

[0068] (1) Refining treatment of yarn

[0069] Caustic soda: 3g / L

[0070] Penetrant: 4g / L

[0071] Temperature: 60°C

[0072] (2) Preparation of cationic modification solution for yarn

[0073] Cationic modifier: 14g / L

[0074] Caustic soda: 6g / L

[0075] Temperature: 50°C

[0076] (3) Preparation of paint dye solution

[0077] Pigment Feihong: 15g / L

[0078] Softener: 5g / L

[0079] Penetrant: 4g / L

[0080] Cross-linking agent: 4g / L

[0081] Binder: 15g / L

[0082] (4) Preparation of indigo dyeing solution

[0083] Indigo: 2.55g / L

[0084] Hydrosulfite: 0.75g / L

[0085] Caustic soda: 3.0g / L

[0086] (5) Production process:

[0087] Refining→washing→cation modification treatment→pre-baking→1 coat→4 coats of indigo→washing→sizing→drying

[0088] (6) Process parameters:

[0089] Surplus rate: 70%

[0090] Drying temperature: 120°C...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a dyeing method for multilevel-color jean yarns. The dyeing method comprises the following steps: carrying out modification treatment on yarns by adopting a cationic modifying agent; padding 1-2 paths of pigment printing paste on the treated yarns at a room temperature and drying; then carrying out continuous rolling and dyeing by indigo blue and sulfur dyestuff or overdyeing of the indigo blue and the sulfur dyestuff. The jean yarns produced by the dyeing method are bright in color and luster, good in color fastness, pure in colored light and low in room-temperature dyeing power consumption; the quantity of indigo blue dyeing grooves is reduced by priming a high-fastness pigment; a process flow is shortened, the pollution discharge is reduced and the production cost is reduced.

Description

technical field [0001] The invention relates to a dyeing process of denim yarn with multi-layered colors, belonging to the technical field of textile chemical industry. Background technique [0002] Environmental pollution caused by lack of water resources and sewage discharge has become a global problem. Traditional denim fabrics are dyed with indigo or sulfur dyes. Not only the dyeing process is long and the process conditions are difficult to control, but the dyeing rate of indigo and sulfur dyes on cotton fibers Low, and indigo needs multiple continuous over-dyeing to obtain a darker color, thus causing a large amount of dyeing wastewater. The wastewater contains a large amount of dyes, reducing agents and caustic soda, which has caused serious pollution to the environment. [0003] In recent years, my country's denim industry has developed rapidly. While inheriting the traditional classic, rough and unrestrained style, denim fabrics are more pursuing diversified colors ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06P1/22D06P1/00D06P1/44D06P1/673
Inventor 谢松才李广军刘涛齐艳花赵玉水刘玉刚王胜利徐仁利郭其斌
Owner SHANDONG DAIYIN TEXTILE GROUP SHARE CO LTD
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