Cold pad batch (CPB) dyeing method of pure cotton knitted fabric

A technology for cold pad-batch dyeing and cotton knitted fabrics, which is applied in the field of pretreatment liquid for cotton knitted fabrics. It can solve the problems of black air on the cloth surface, shallow edges, and easy color difference, and achieve high color fixing rate and overcome color difference.

Inactive Publication Date: 2011-05-18
日冠(福建)针纺织机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing problems in the cold pad-batch dyeing of cotton knitted fabrics such as color difference, black air on the cloth surface and light edge, etc., the present invention provides a method for cold pad-batch dyeing of cotton knitted Cotton knitted fabric pre-treatment liquid composed of sodium, sodium hydroxide, sodium silicate; and dyeing material composed of reactive dyes, alkali agents and penetrating agents, and provides cold pad-batch using the pre-treatment and dyeing material Dyeing method
[0006] For the cold pad batch dyeing process of pure cotton knitted fabrics, problems such as chromatic aberration, black gas on the cloth surface and light edges are prone to occur during the dyeing process. In addition to improving the dyeing pad car, rolling device, washing machine and other equipment for cold pad batch dyeing , fabric pretreatment solution, and the preparation of dyes also play a key role

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

Embodiment 1

[0038] Fabric: Cotton 1×1 rib knit

[0039] The content of each component of the cold pad-batch dyeing pretreatment solution for cotton knitted fabrics is as follows:

[0040] Sodium peroxide (industrial grade): 20g / L;

[0041] Sodium hydroxide (industrial grade): 20g / L;

[0042] Sodium silicate (industrial grade): 4g / L;

[0043] OEP-70 scouring agent: 1.5g / L.

[0044] After the cloth embryo is padded with the above pretreatment solution, rolled, stacked, alkali steamed, washed with water, adjusted to pH = 7 with acetic acid, and excess hydrogen peroxide is removed with deoxygenase, the cotton knitted fabric is made into cold pad-batch dyeing Semi-finished product.

[0045] The content of each component of the cold pad-batch dyeing of cotton knitted fabrics is as follows:

[0046] Reactive dyes: 15g / L;

[0047] Alkali resistance agent for reactive dyes: 1g / L;

[0048] Sodium hydroxide (industrial grade): 4g / L;

[0049] Sodium chloride (industrial grade); 25g / L

[0050] ...

Embodiment 2

[0056] Fabric: Cotton mercerized piqué jersey.

[0057] The content of each component of the cold pad batch dyeing pretreatment solution is as follows:

[0058] Sodium peroxide (industrial grade): 16g / L;

[0059] Sodium hydroxide (industrial grade): 20g / L;

[0060] Sodium silicate (industrial grade): 5g / L;

[0061] OEP-70 scouring agent: 2g / L.

[0062] After the cloth embryo is padded with the above pretreatment solution, rolled, stacked, alkali steamed, washed with water, adjusted to pH = 7 with acetic acid, and excess hydrogen peroxide is removed with deoxygenase, the cotton knitted fabric is made into cold pad-batch dyeing Semi-finished product.

[0063] The content of each component of the cold pad-batch dyeing of cotton knitted fabrics is as follows:

[0064] Reactive dyes: 5g / L;

[0065] Alkali resistance agent for reactive dyes: 0.5g / L;

[0066] Sodium hydroxide (industrial grade): 3g / L;

[0067] Sodium chloride (industrial grade); 17g / L

[0068] Color enhancer...

Embodiment 3

[0074] Fabric: Cotton 2×2 rib knit

[0075] The content of each component of the cold pad batch dyeing pretreatment solution is as follows:

[0076] Sodium peroxide (industrial grade): 25g / L;

[0077] Sodium hydroxide (industrial grade): 24g / L;

[0078] Sodium silicate (industrial grade): 2g / L;

[0079] OEP-70 scouring agent: 1g / L.

[0080] After the cloth embryo is padded with the above pretreatment solution, rolled, stacked, alkali steamed, washed with water, adjusted to pH = 7 with acetic acid, and excess hydrogen peroxide is removed with deoxygenase, the cotton knitted fabric is made into cold pad-batch dyeing Semi-finished product.

[0081] The content of each component of the cold pad-batch dyeing of cotton knitted fabrics is as follows:

[0082] Reactive dyes: 20g / L;

[0083] Alkali resistance agent for reactive dyes: 1g / L;

[0084] Sodium hydroxide (industrial grade): 5g / L;

[0085] Sodium chloride (industrial grade); 28g / L

[0086] Color enhancer: 23g / L;

[...

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Abstract

The invention relates to a cold pad batch (CPB) dyeing method of a pure cotton knitted fabric. The invention provides a pure cotton knitted fabric pretreatment liquor comprising sodium peroxide, sodium hydroxide and sodium silicate for CPB dyeing of the pure cotton knitted fabric, a dye comprising reactive dye, an alkali agent and a penetrating agent and a method for CPB dyeing by applying the pretreatment liquor and the dye. The method solves the problems of color difference, cloth cover black gas, color dot, dyeing speck, and the like to a certain extent, and has the advantage of high color fixation of reaching higher than 85 percent.

Description

technical field [0001] The invention relates to the printing and dyeing industry in the textile industry, in particular to a pretreatment liquid for cotton knitted fabrics composed of sodium peroxide, sodium hydroxide, sodium silicate and a refining agent for cold pad-batch dyeing of cotton knitted fabrics and a dyeing material composed of reactive dye, alkali agent, penetrating agent color enhancer, and applying the pretreatment liquid and dyeing material to carry out the method of cold pad-batch dyeing. Background technique [0002] Cold pad-batch dyeing means that the fabric is dipped with dyeing solution and lye at low temperature, and the dyeing solution is adsorbed on the surface of pure cotton fabric fibers by rolling and rolling, and then piled up at room temperature for a certain period of time ( Bonding time) and rotate slowly to complete the process of dye adsorption, diffusion and color fixation, and finally wash with water to complete the dyeing method. The pro...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/50D06M11/38D06M11/79D06P1/38D06P1/673D06P3/66D06M101/06
Inventor 纪荣康林金芽
Owner 日冠(福建)针纺织机械有限公司
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