Method for dyeing cotton and viscose-polyester fabrics by combining overflow dyeing and continuous dyeing

A technology for overflow dyeing and viscose polyester fabrics, applied in the dyeing and cotton fields of viscose polyester fabrics, can solve the problems of low efficiency, weight reduction, low dyeing efficiency, etc., to achieve high dyeing efficiency, small weight loss, The effect of high soaping fastness

Inactive Publication Date: 2020-01-17
ZHEJIANG MIZUDA TEXTILE PRINTING & DYEING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the above dyeing methods, the efficiency of exhaust dyeing is low, and the difference between cylinders is large; even if the lowest temperature of pad dyeing is 175°C, the radial elasticity of the fabric will be seriously damaged, the weight of the fabric will be reduced, and the elasticity will be poor, and the polyester fiber pad dyed poor fastness
Therefore, the existing dyeing process of cotton and viscose-polyester fabrics has low exhaust dyeing efficiency and large cylinder difference; the pad-dyeing elastic cloth has poor elasticity, and the pad-dyeing fabric has poor fastness and light weight.

Method used

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  • Method for dyeing cotton and viscose-polyester fabrics by combining overflow dyeing and continuous dyeing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1. The dyeing method that overflow dyeing of cotton, viscose fabric and long car dyeing combines, comprises the following steps,

[0034] A. Turn over the cotton, viscose and polyester gray cloth to obtain product A;

[0035] B. After pretreatment of product A with alkali oxygen, cold stack at normal temperature for 24 hours to obtain product B;

[0036] The formula of the alkali-oxygen pretreatment agent is: caustic soda 10g / L, hydrogen peroxide 5g / L, refining agent 5g / L, degreasing agent 5g / L, stabilizer 5g / L, chelating agent 3g / L;

[0037] C. Debleach product B in a tight test (i.e. use a tight type debleaching agent to steam product B for 3 minutes at 98°C, wash with water, and drop the cloth.) to obtain product C;

[0038] The formulation of the tight bleaching agent is hydrogen peroxide 5g / L, refining agent 3g / L, degreaser 3g / L, stabilizer 5g / L, chelating agent 3g / L;

[0039] D. Singeing product C to obtain product D;

[0040] E. Pre-design product D t...

Embodiment 2

[0057] Example 2. The dyeing method that overflow dyeing of cotton, viscose fabric and long car dyeing combines, comprises the following steps,

[0058] A. Turn over the cotton, viscose and polyester gray cloth to obtain product A;

[0059] B. After pretreatment of product A with alkali oxygen, cold stack at normal temperature for 16 hours to obtain product B;

[0060] The formula of the alkali-oxygen pretreatment agent is: caustic soda 5g / L, hydrogen peroxide 3g / L, refining agent 3g / L, degreaser 3g / L, stabilizer 3g / L, chelating agent 1g / L;

[0061] C. Debleach product B in a tight manner (i.e. use a tight debleaching agent to steam product B for 2 minutes at 90°C, wash with water, and drop the cloth.) to obtain product C;

[0062] The formulation of the tight reagent is hydrogen peroxide 3g / L, refining agent 1g / L, degreasing agent 1g / L, stabilizer 3g / L, chelating agent 1g / L;

[0063] D. Singeing product C to obtain product D;

[0064] E. Pre-design product D to get produc...

Embodiment 3

[0080] Example 3. The dyeing method that overflow dyeing of cotton, viscose fabric and long car dyeing combines, comprises the following steps,

[0081] A. Turn over the cotton, viscose and polyester gray cloth to obtain product A;

[0082] B. After pretreatment of product A with alkali oxygen, cold stack at normal temperature for 32 hours to obtain product B;

[0083] The formula of the alkali-oxygen pretreatment agent is: caustic soda 15g / L, hydrogen peroxide 8g / L, refining agent 8g / L, degreasing agent 8g / L, stabilizer 8g / L, chelating agent 5g / L;

[0084] C. Debleach product B in a tight manner (that is, use a tight debleaching agent to steam product B for 5 minutes at 105°C, wash with water, and drop the cloth.) to obtain product C;

[0085] The formula of the tight type bleaching agent is hydrogen peroxide 8g / L, refining agent 5g / L, degreasing agent 5g / L, stabilizer 8g / L, chelating agent 5g / L;

[0086] D. Singeing product C to obtain product D;

[0087] E. Pre-design p...

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PUM

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Abstract

The invention discloses a method for dyeing cotton and viscose polyester fabrics by combining overflow dyeing and continuous dyeing, which comprises the steps of A, invert-sewing cotton and viscose-polyester grey fabrics to obtain a product A; B, performing alkaline-oxygen pretreatment on the product A and then performing cold stacking to obtain a product B; C, tightly desizing and bleaching the product B to obtain a product C; D, singeing the product C to obtain a product D; E, presetting the product D to obtain a product E; F, performing high-temperature high-pressure overflow dyeing on theproduct E with disperse dyes to obtain a product F; G, stripping and washing the product F to obtain a product G; H, drying the product G to obtain a product H; I, carrying out continuous dyeing on the product H with reactive dyes to obtain a product I; J, post-finishing the product I to obtain a product J; K, preshrinking the product J to obtain a product K; and L, inspecting and packaging the product K to obtain a finished product. According to the invention, the dyeing efficiency is high, the vat difference is small, the fastness is good, the gram weight reduction is small, and the elasticity of the dyed stretch fabrics is good.

Description

technical field [0001] The invention relates to the technical field of dyeing methods for cotton and polyester fabrics, in particular to a dyeing method combining overflow dyeing and long-car dyeing for cotton and polyester fabrics. Background technique [0002] At present, the dyeing process of cotton and viscose-polyester fabrics is generally exhaust dyeing or pad dyeing, in which exhaust dyeing is high-temperature and high-pressure overflow dyeing with disperse dyes + overflow dyeing with reactive dyes, specifically, pretreatment, overflow vat dyeing as a primer , stripping, and overflow dyeing of cotton fibers; pad dyeing is hot-melt pad dyeing with disperse dyes + reactive dyes, specifically, pretreatment, long-term dispersive primer, baking, long-term stripping and washing, and long-term dyeing of cotton fibers . Among the above dyeing methods, the efficiency of exhaust dyeing is low, and the difference between cylinders is large; even if the lowest temperature of pad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/16D06P1/38D06L4/13D06L4/12D06P3/872D06B21/00
CPCD06B21/00D06P1/16D06P1/38D06P3/8252D06L4/12D06L4/13
Inventor 卢国栋曹丽霞
Owner ZHEJIANG MIZUDA TEXTILE PRINTING & DYEING TECH CO LTD
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