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Refining desizing process for chemical fiber fabric

A fabric and chemical fiber technology, applied in the field of textile printing and dyeing pretreatment, can solve the problems of difficult degree of control, low dyeing percentage of fabrics, poor dyeing uniformity, etc., and achieves the effect of eliminating burrs, improving dyeing uniformity and eliminating rust.

Inactive Publication Date: 2019-02-01
嘉兴市嘉盛印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing production process of this high-quality chemical fiber yarn-dyed fabric, the desizing process uses desizing agents and other auxiliary agents to remove oil stains, impurities and sizing on the fiber surface, but due to the high desizing temperature, the cellulose fiber The degree of oxidized cellulose produced under high temperature alkaline conditions is not easy to control, which will result in a lower dyeing percentage of the fabric in the subsequent dyeing process, and poor dyeing uniformity

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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  • Refining desizing process for chemical fiber fabric
  • Refining desizing process for chemical fiber fabric
  • Refining desizing process for chemical fiber fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: a kind of scouring desizing process of chemical fiber fabric, comprises the following steps:

[0037] (1) Pre-shrinking: pre-shrinking chemical fiber fabrics in the open-width two-dipping and two-rolling pre-shrinking machine, the temperature of the first water tank is controlled at 85°C, the temperature of the second water tank is 90°C, and the chemical fiber fabrics pass through each water tank The moving speed is 30 m / min, and the washing time of each tank is 30 minutes;

[0038] (2) Scouring: use oxalic acid with a mass concentration of 1% to soak the chemical fiber fabric for 30 minutes, and the water-to-bath ratio is 1:10. The final chemical fiber fabric is placed in the overflow dyeing machine, the mass ratio of the chemical fiber fabric and the scouring liquid is controlled to be 1:20, and then lye solution with a mass fraction of 30% is added, the scouring temperature is controlled to be 100° C., and the scouring time is 30 minutes. The moving sp...

Embodiment 2-7

[0050] Example 2-7: A scouring and desizing process for chemical fiber fabrics. The difference from Example 1 is that the components in the scouring liquid and the parts by weight corresponding to each component are shown in Table 1.

[0051] Components of scouring liquor and the corresponding parts by weight of each component in Table 1 embodiment 2-7

[0052]

[0053]

Embodiment 8

[0054] Embodiment 8: A scouring and desizing process for chemical fiber fabrics. The difference from Embodiment 1 is that the penetrating agent includes triisobutyl phosphate and sodium secondary alkyl sulfonate at a ratio of 3:1.

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Abstract

The invention discloses a refining desizing process for a chemical fiber fabric, and relates to the technical field of textile printing and dyeing pretreatment, and the refining desizing process comprises the following steps: (1) pre-shrinking; (2) refining, wherein a refining liquid is composed of the components, by weight, of 12-16 parts of sodium hydroxide with the mass concentration of 32%, 0.3-0.7 part of sodium tripolyphosphate, 5-10 parts of a refining aid, 1-5 parts of trisodium phosphate, 3-8 parts of a penetrating agent, 6-12 parts of a chelating dispersant, 3-6 parts of sodium cocoyl methyl taurate, 2-5 parts of cocamidopropyl amine oxide, 3-7 parts of alkyl glycoside and 8-15 parts of isomeric alcohol polyoxyethylene ether; wherein the grinding aid comprises the components of sodium hydrogen sulfite, sodium silicate and alkyl sulfate in a mass ratio of 2: 3: 3; (3) water washing; (4) steaming; (5) enzyme water washing; and (6) shaping. According to the invention, the problems that the desizing effect of the chemical fiber fabric is poor, and the dye uptake and the dyeing uniformity are poor are solved; a refining agent is used for refining and desizing the chemical fiber fabric, the desizing rate is high, and the dye uptake and the leveling property are good.

Description

technical field [0001] The invention relates to the technical field of pretreatment of textile printing and dyeing, more specifically, it relates to a scouring and desizing process for chemical fiber fabrics. Background technique [0002] Before the fabric is weaved, the warp yarns are generally subjected to sizing treatment (the warp yarns are dipped in the sizing solution and then dried), so that the fibers in the yarns are adhered to each other, and a thin film is formed on the surface of the yarns, which is convenient for weaving. Cotton fabrics are generally sized with starch or modified starch sizing or polyvinyl alcohol and polyacrylic acid (ester) sizing, and lubricants, softeners, preservatives and other additives are added to the sizing; the sizing will affect the fabric during the dyeing and finishing process. Wettability, and hinder the contact of chemicals to fibers. In order to ensure the color uptake rate of fabrics in the subsequent dyeing and finishing proce...

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): D06P1/673D06P1/62D06P1/613D06P1/44
CPCD06P1/445D06P1/6131D06P1/623D06P1/6735D06P1/67366D06P1/67383
Inventor 钱琴芳孟文祥张建国俞垚吴学芬沈俊
Owner 嘉兴市嘉盛印染有限公司
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