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Solid rayon fabric scouring and bleaching agent preparation and application method

An application method and technology for refining and bleaching agent are applied in the field of preparation of rayon fabric refining and bleaching agent, which can solve the problems of preparation and application of low-temperature oxygen bleaching agent for rayon (viscose) fabrics, etc., and achieve energy saving and emission reduction quality and high quality. Practical performance, stable product quality, the effect of reducing the degree of swelling

Active Publication Date: 2020-01-17
广东创新精细化工实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of these methods and technologies is all based on cotton fiber fabrics, and there is no bibliographical report on the preparation and application of low-temperature oxygen bleaching agents for rayon (viscose) fabrics at present.

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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  • Solid rayon fabric scouring and bleaching agent preparation and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Fabric Type: Rayon Knit (130 g / m 2 )

[0023] Preparation of solid scouring and bleaching agent: put 20 g of sodium carbonate, 20 g of sodium silicate, 25 g of sodium percarbonate, and 25 g of urea into a dry crushing granulator, grind and mix for 4 hours at 30 ° C, and then put in Liquid surfactant AEO-9 10 g, rotary granulation to obtain granular solid scouring agent;

[0024] Scouring and bleaching of fabrics: use the prepared solid scouring and bleaching agent for scouring and bleaching of rayon knitted fabrics, the solid scouring and bleaching agent is 3 g / L, the bath ratio is 1:15, and the temperature is 60 ° C, heat preservation treatment for 35 minutes, after treatment The fabrics are washed, dehydrated, and dried.

Embodiment 2

[0026] Fabric Type: Rayon Knit (150 g / m 2 )

[0027] Preparation of solid scouring and bleaching agent: put 25 g of sodium silicate, 25 g of sodium acetate, 20 g of sodium percarbonate, 13 g of urea, and 7 g of cyanoacetylurea into a dry crushing granulator, crush and mix at 40 ° C 2 hours, then drop into liquid surfactant 130910g rotary granulation, get granular solid scouring agent;

[0028] Scouring and bleaching of fabrics: use the prepared solid scouring and bleaching agent for scouring and bleaching of rayon knitted fabrics. The solid scouring and bleaching agent is 2 g / L, the bath ratio is 1:5, and the temperature is 80 ° C. The fabrics are washed, dehydrated, and dried.

Embodiment 3

[0030] Fabric Type: Modal Knit (150 g / m 2 )

[0031] Preparation of solid bleaching agent: put 40 g of sodium silicate, 20 g of sodium citrate, 10 g of sodium percarbonate, 5 g of sodium perborate, 10 g of urea, and 5 g of dicyandiamide into a dry crushing granulator , crushed and mixed for 4 hours at 30°C, then put in liquid surfactants AEO-9 5g and 1306 5g for rotary granulation to obtain granular solid scouring agent;

[0032] Scouring and bleaching of fabrics: use the prepared solid scouring and bleaching agent for scouring and bleaching of rayon knitted fabrics, solid scouring and bleaching agent 1 g / L, bath ratio 1:10, at a temperature of 70 ° C, heat preservation for 35 minutes, after treatment The fabrics are washed, dehydrated, and dried.

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 belongs to the technical field of textile printing and dyeing and discloses a solid rayon fabric scouring and bleaching agent preparation and application method. The method is characterized in that a solid granular scouring and bleaching agent is prepared from, by mass, 40-60 parts of a solid alkaline agent, 15-25 parts of a solid oxidant, 15-25 parts of a solid activator and 10-20 parts of a liquid surfactant. The method includes steps: taking 1-4g / L of the solid scouring and bleaching agent, scouring and bleaching rayon fabrics for 15-35min at the temperature of 60-80DEG C under the condition that a bath ratio is 1:5-15, conventionally washing, dewatering and drying. The solid scouring and bleaching agent is adopted for treatment of the rayon fabrics, alkalinity of treatingliquid can be stabilized by the alkaline agent and the surfactant, and deoiling, emulsification and dispersion are realized without damaging fibers; the oxidant generates active species under the action of the activator, and low-temperature efficient bleaching is realized. Compared with a traditional scouring and bleaching process, the method has advantages of low temperature and avoidance of deoxidizing and neutralizing procedures under the condition that identical whiteness is achieved. In addition, energy saving and emission reduction are realized, and strength, color brightness, hand feeling quality and practicality of the rayon fabrics are improved.

Description

technical field [0001] The invention relates to a preparation method and an application process of a scouring and bleaching agent for rayon fabrics, and belongs to the technical field of textile printing and dyeing. Background technique [0002] The development of the economy and the improvement of people's living standards impel people's increasing demand for healthy and comfortable clothing. Rayon fabric is commonly known as viscose fabric, which is a kind of regenerated fiber fabric of cellulose. Similar fiber materials include Modal fiber (Modal), Lyocell fiber (Lyocell), etc., which are recognized as green and environmentally friendly fibers. Viscose fiber has both the physical and chemical structure of cotton fiber and the supramolecular structure similar to synthetic fiber, so it has excellent moisture and heat conductivity, and is widely used as a one-way moisture-wicking and cool and comfortable underwear fabric. However, due to the low degree of polymerization (DP...

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): D06M11/76D06M11/79D06M11/50D06M13/432D06M13/188D06M13/207D06M11/82D06L4/13D06L4/12D06M101/06
CPCD06L4/12D06L4/13D06M11/50D06M11/76D06M11/79D06M11/82D06M13/188D06M13/207D06M13/432D06M2101/06
Inventor 钟创林杨剑辉熊剑波
Owner 广东创新精细化工实业有限公司
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