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Dyeing and finishing process for high-grade cotton fabric

A cotton fabric, high-grade technology, applied in the field of dyeing and finishing of high-grade rayon fabrics, can solve the problems of fuzzy and rough printing effect, unsatisfactory market response, low added value, etc., and achieves good hand feeling, rich luster and good dyeing effect. Effect

Inactive Publication Date: 2018-04-03
NINGBO DUNHE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional clothing fabrics have single functions, low grades, poor comfort, and low added value, which cannot meet people's needs for clothing.
In addition, most of the existing dyeing and finishing methods of rayon fabrics use reactive dyes for direct printing, and the small floral pattern is acceptable in the market, but when it comes to patterns with dark backgrounds and light-colored small flowers, the printing effect is blurred and rough, with three-dimensional effect. Poor, the market reaction is very unsatisfactory

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

[0019] A dyeing and finishing process for high-grade rayon fabrics, comprising the following steps: (1) twisting and compounding twisted yarns of polyester filaments and rayon yarns into threads to form primary high-grade woven rayon fabrics, wherein the weight ratio of polyester filaments to rayon yarns is 5:10; (2) Dyeing pretreatment of the primary high-grade woven rayon fabric: placing the primary high-grade woven rayon fabric in the dyeing pretreatment solution for cooking, and the dyed pretreated The temperature is 60°C, the solution includes 0.20 g / L of defoamer, the defoamer is octylphenol polyoxyethylene ether, and the dispersant is 5 g / L of disodium alkyl alcohol ether sulfosuccinic acid monoester , penetrating agent is sulfated castor oil 6g / L, sulfuric acid 0.20g / L, bleaching powder 0.20g / L, main component is calcium hypochlorite in the bleaching powder, and described bleaching powder available chlorine content is 28 (wt)%. , sodium carbonate 3g / L, hydrogen peroxid...

Embodiment 2

[0021]A dyeing and finishing process for high-grade rayon fabrics, comprising the following steps: (1) twisting and compounding twisted yarns of polyester filaments and rayon yarns into threads to form primary high-grade woven rayon fabrics, wherein the weight ratio of polyester filaments to rayon yarns is 3:10; (2) Dyeing pretreatment of the primary high-grade woven rayon fabric: placing the primary high-grade woven rayon fabric in the dyeing pretreatment solution for cooking, and the dyed pretreated The temperature is 50°C, the solution includes 0.15 g / L of defoamer, the defoamer is octylphenol polyoxyethylene ether, the dispersant is 4 g / L, and the dispersant is alkyl alcohol ether sulfosuccinic acid monoester Disodium salt, penetrant 4g / L, penetrant are sulfated castor oil, sulfuric acid 0.10g / L, bleaching powder 0.10g / L, main component is calcium hypochlorite in the bleaching powder, and described bleaching powder available chlorine content is 20(wt )%. , sodium carbonat...

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 and finishing process for high-grade cotton fabric. The dyeing and finishing process comprises the following steps: performing dyeing pre-treatment on primary high-grade cotton fabric, performing antistatic and crease-resistant finishing, performing dye discharge print on cooked and formed primary high-grade cotton fabric, soaking the primary high-grade cotton fabric into a dyeing solution which comprises 1ml / L of a dyeing agent and 1ml / L of a chelating agent; heating to a temperature of 40-50 DEG C, performing steaming for 20-30 minutes through a rapid steamer with steam pressure of 2 kg, heating up to a temperature of 50-60 DEG C in a curved mode, preserving the heat for 10 minutes, adding salt and sodium carbonate which are equal in mass of 3-5g / L, heating up to a temperature of 60-70 DEG C in the curved mode, preserving the heat for 10 minutes, adding a dye-fixing agent, and performing after-treatment. The high-grade cotton fabric obtained by the method is high in three-dimensional feeling of discharge-printed and dyed patterns, is firm in dye, has moisture permeability and ultraviolet ray resistance which reach satisfying degree, and is good in dyeing effect.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing and finishing, in particular to a dyeing and finishing process of high-grade rayon fabrics. Background technique [0002] Modern textiles pursue the development of excellent regenerated natural plant fiber fabrics, improve and enhance the wearing function of natural plant fiber fabrics, and use them to meet the needs of the market, while rayon woven fabrics have special advantages and meet greater requirements for dyeing rayon fabrics. Market demand. The dyeing and finishing method of rayon fabrics in the prior art is not firm, especially the dyeing skills of medium and dark colors are insufficient, and the dyeing steps are complicated. Another example is that the effect of moisture permeability and anti-ultraviolet rays is not satisfactory. Consumers have higher requirements for the functionality, comfort, health, environmental protection and health care of clothing fabrics. The moisture p...

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): D06P1/00D06P1/653D06P3/85D06P5/06D06P5/10D06L4/12D06L4/13D06M13/368D06M15/643D06M101/06D06M101/32
CPCD06P1/0076D06L4/12D06L4/13D06M13/368D06M15/6436D06M2101/06D06M2101/32D06P1/653D06P3/8228D06P5/06D06P5/10
Inventor 姜术丹赵艳
Owner NINGBO DUNHE TECH CO LTD
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