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Dyeing and finishing technology of rayon fabric

A dyeing and finishing technology for cotton fabrics, which is applied in the dyeing and finishing process of rayon fabrics. It can solve the problems of fuzzy and rough printing effects, unsatisfactory market response, and low added value, and achieve good hand feeling, thick luster, and good dyeing effect. Effect

Inactive Publication Date: 2018-06-29
宁波高新区州致科技有限公司
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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, including the following steps: (1) Using polyester yarn and rayon yarn to twist the composite twisted yarn to form a primary high-grade woven rayon fabric, wherein the weight ratio of polyester yarn to rayon yarn 5:10; (2) Dyeing pretreatment of the primary high-grade woven rayon fabric: placing the primary high-grade woven rayon fabric in a dyeing pretreatment solution for cooking, and the dyeing pretreatment The temperature is 60°C, the solution includes 0.20g / L of defoaming agent, the defoaming agent is polyoxyethylene octylphenol ether, and the dispersing agent is alkyl alcohol ether sulfosuccinic acid monoester disodium salt 5g / L The penetrant is 6 g / L of sulfated castor oil, 0.20 g / L of sulfuric acid, 0.20 g / L of bleaching powder, calcium hypochlorite is the main component of the bleaching powder, and the effective chlorine content of the bleaching powder is 28 (wt)%. , Sodium bicarbonate 3g / L, hydrogen p...

Embodiment 2

[0021] A dyeing and finishing process for high-grade rayon fabrics, including the following steps: (1) Using polyester yarn and rayon yarn to twist the composite twisted yarn to form a primary high-grade woven rayon fabric, wherein the weight ratio of polyester yarn to rayon yarn 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 dyeing pretreatment The temperature is 50°C, the solution includes 0.15g / L defoamer, octylphenol polyoxyethylene ether, 4g / L dispersant, and alkyl alcohol ether sulfosuccinic acid monoester. Disodium salt, penetrant 4g / L, penetrant is sulfated castor oil, sulfuric acid 0.10g / L, bleaching powder 0.10g / L, the main component of bleaching powder is calcium hypochlorite, the effective chlorine content of the bleaching powder is 20 (wt )%. , Sodium bicarbonate 1g / L, hydrogen peroxide 3g / L, glacial acetic acid 0.20g / L, sodium...

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 technology of a rayon fabric. The dyeing and finishing technology comprises the following steps: dyeing and pre-treating a primary high-grade woven rayon fabric; carrying out antistatic and anti-crease finishing; carrying out dyestuff discharge printing on the steamed and sized primary high-grade woven rayon fabric and immersing into a dyeing solution, wherein the dyeing solution is prepared from 1ml / L of a dyeing agent and 1ml / L of a chelating agent; raising the temperature to 40 to 50 DEG C; steaming for 20 to 30min by utilizing a steaming machine with the steam pressure of 2kg to raise the temperature to 50 to 60 DEG C along a curve; carrying out heat preservation for 10min; then adding table salt and sodium carbonate, wherein the mass ofthe table salt is the same as that of the sodium carbonate and is 3 to 5g / L; then raising the temperature to 60 to 70 DEG C along the curve and carrying out the heat preservation for 10min; adding a color fixing agent and then carrying out post-treatment. According to the method provided by the invention, an obtained discharge printing dyed pattern has strong stereoscopic impression and a dyestuffis firm; the moisture-permeable and anti-ultraviolet effects reach satisfied degrees and the dyeing effect is good.

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 rayon fabric. Background technique [0002] In modern textiles, we are pursuing the development of fine regenerated natural plant fiber fabrics, improving and enhancing the wearing function of natural plant fiber fabrics, to meet the needs of the market, and rayon woven fabrics have special advantages, which can meet greater requirements for dyeing rayon fabrics. Market demand. The dyeing and finishing method of rayon fabric in the prior art is not strong, especially the dyeing technique of medium and dark colors is insufficient, and the dyeing step is complicated. Another example is that the moisture permeability and anti-ultraviolet effects are not satisfactory. Consumers have higher requirements for the functionality, comfort, health, environmental protection and health of clothing fabrics. The moisture permeability and UV resi...

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): D06M13/368D06M15/643D06L4/23D06L4/13D06L4/15D06P1/22D06P1/653D06P1/673D06P1/642D06P5/10D06P5/04D06P3/60D06P3/52D06P3/85D06M101/06D06M101/32
CPCD06M13/368D06L4/13D06L4/15D06L4/23D06M15/6436D06M2101/06D06M2101/32D06M2200/20D06P1/22D06P1/6426D06P1/653D06P1/6735D06P1/67375D06P3/523D06P3/6025D06P3/8228D06P5/04D06P5/10
Inventor 姜旭峰赵鲜梅
Owner 宁波高新区州致科技有限公司
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