Rayon fabric dyeing and finishing method

A cotton fabric and fabric technology, applied in the field of dyeing and finishing of rayon fabrics, can solve the problems of blurry 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: 2018-06-22
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 rayon fabric containing acrylic yarn, including the following steps: (1) Acrylic yarn and rayon yarn are used to twist the composite twisted yarn to form a primary woven rayon fabric, in which the acrylic yarn and rayon yarn are combined The weight ratio is 5:10; (2) Dyeing pretreatment of the primary woven rayon fabric: placing the primary 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 pero...

Embodiment 2

[0021] A dyeing and finishing process for rayon fabric containing acrylic yarn, including the following steps: (1) Acrylic yarn and rayon yarn are used to twist the composite twisted yarn to form a primary woven rayon fabric, in which the acrylic yarn and rayon yarn are combined The weight ratio is 3:10; (2) Dyeing pretreatment of the primary woven rayon fabric: placing the primary woven rayon fabric in a 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 phospha...

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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Abstract

The invention relates to a rayon fabric dyeing and finishing method. The rayon fabric dyeing and finishing method comprises the following steps: conducting dyeing pretreatment and antistatic and crease-resistant finishing on a primary woven rayon fabric, conducting dye discharge print on the cooked and formed primary woven rayon fabric, immersing in a staining fluid, wherein the staining fluid comprises 1 ml/L of a dye and 1 ml/L of a chelating agent; raising the temperature to 40-50 DEG C, steaming with vapor for 20-30 minutes in a rapid steamer at the steam pressure of 2 kg, raising the temperature of a curve to 50-60 DEG C, preserving the heat for 10 minutes, adding salt and sodium carbonate, wherein the masses of both the salt and the sodium carbonate are the same and are both 3-5 g/L;raising the temperature of the curve to 60-70 DEG C, preserving the heat for 10 minutes, adding a dye fixing agent, and post-processing. The third-dimensional effect of a discharge print pattern obtained through the method is strong, the fastness of a dye is high, the effects of moisture permeation and UV resistance meet satisfaction, 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 for rayon fabrics containing acrylic yarns. 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, and they are more suitable for dyeing rayon fabric Market demand. The dyeing and finishing method of rayon fabric in the prior art is not strong, especially the dyeing technique for medium and dark colors is insufficient and the dyeing steps are 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 permea...

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): D06P1/22D06P1/673D06P1/653D06P1/613D06P3/82D06P5/15D06P5/06D06M13/368D06M15/643D06L4/13D06L4/12D06L4/23D03D15/00D02G3/04D06M101/28D06M101/06D03D15/225D03D15/283D03D15/47
CPCD02G3/04D06L4/12D06L4/13D06L4/23D06M13/368D06M15/6436D06P1/22D06P1/6135D06P1/6533D06P1/6735D06P3/8266D06P5/06D06P5/15D06M2101/28D06M2200/50D06M2101/06D10B2321/10D10B2201/24D03D15/47
Inventor 姜向阳姜旭峰
Owner 宁波高新区州致科技有限公司
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