Preparation method of sizing agent for pure cotton yarn sizing

A cotton yarn and sizing technology, which is applied in the field of sizing sizing of pure cotton yarn, can solve the problems of low viscosity, unfavorable textile enterprises, high film strength, etc., and achieve excellent sizing film performance, improve sizing efficiency, and improve durability. The effect of grinding performance

Inactive Publication Date: 2018-01-19
SUQIAN YUANYANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Starch size has good film-forming properties, strong affinity with natural fibers, and is easy to desizing; but starch size sizing is not strong enough, easy to break, and poor wear resistance
Polyvinyl alcohol size film has strong strength and good flexibility, and is often used for sizing pure cotton, but it is difficult to desizing polyvinyl alcohol, and the desizing wastewater is not easy to degrade, causing great environmental pollution
Polyacrylic acid slurry has low viscosity, good fluidity, and good adhesion to synthetic fibers. In actual production, it can be mixed with starch and polyvinyl alcohol slurry, but the price of polyacrylic acid slurry has always been high. Conducive to textile enterprises to reduce production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing pure cotton yarn sizing slurry, comprising the steps of:

[0018] (1) Add the dried beer grains into water, the bath ratio is 1:5, wash once, filter with a 50-mesh sieve, and filter out the remaining soluble sugar in the beer grains;

[0019] (2) naturally dry the beer's grains after desugaring, and adopt pulverizer to pulverize the dried beer's grains into 30 mesh powder;

[0020] (3) Extract the protein soluble substances in the pulverized beer dried distiller's grains powder with an aqueous sodium hydroxide solution with a concentration of 0.25%, the heating temperature is 50° C., and the heating time is 30 minutes;

[0021] (4) Adopt high-speed centrifuge to carry out solid-liquid separation to the prepared brewer's grain mixed solution, the centrifugal speed is 5000rmp, and the centrifugation time is 30min;

[0022] (5) Add acrylamide aqueous solution and butyl acrylate dropwise to the obtained liquid in sequence, and after the dropwise addi...

Embodiment 2

[0025] A method for preparing pure cotton yarn sizing slurry, comprising the steps of:

[0026] (1) Add the dried beer grains into water, the bath ratio is 1:30, wash 5 times, filter with a 100-mesh sieve, and filter out the remaining soluble sugar in the beer grains;

[0027] (2) naturally dry the beer's grains after desugaring, and adopt pulverizer to pulverize the dried beer's grains into 30 mesh powder;

[0028] (3) Extract the protein soluble substances in the pulverized beer dried distiller's grains powder with an aqueous sodium hydroxide solution with a concentration of 2%, the heating temperature is 90° C., and the heating time is 90 minutes;

[0029] (4) Adopt high-speed centrifuge to carry out solid-liquid separation to the prepared brewer's grain mixed solution, the centrifugal speed is 10000rmp, and the centrifugation time is 10min;

[0030] (5) Add acrylamide aqueous solution and butyl acrylate dropwise to the obtained liquid in sequence, and after the dropwise a...

Embodiment 3

[0033] A method for preparing pure cotton yarn sizing slurry, comprising the steps of:

[0034] (1) Add the dried beer grains into water, the bath ratio is 1:20, wash 3 times, filter with an 80-mesh sieve, and filter out the remaining soluble sugar in the beer grains;

[0035] (2) naturally dry the beer's grains after desugaring, and adopt pulverizer to pulverize the dried beer's grains into 30 mesh powder;

[0036] (3) Extract the protein soluble substances in the pulverized beer dried distiller's grains powder with an aqueous sodium hydroxide solution with a concentration of 0.9, the heating temperature is 68° C., and the heating time is 50 minutes;

[0037] (4) Adopt high-speed centrifuge to carry out solid-liquid separation to the prepared brewer's grain mixed solution, the centrifugal speed is 7000rmp, and the centrifugation time is 20min;

[0038] (5) Add acrylamide aqueous solution and butyl acrylate dropwise to the obtained liquid in sequence, and after the dropwise a...

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PUM

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Abstract

The invention discloses a preparation method of a sizing agent for pure cotton yarn sizing. The method comprises the following steps that (1) beer distiller's dried grain is added into water, whereinthe bath ratio is (1:5)-(1:30); cleaning and filtering are performed; rest soluble sugar in the brewer's grain is filtered away; (2) the brewer's grain subjected to sugar removal is dried and is smashed into powder being 30 mesh; (3) protein type soluble substances in the smashed beer distiller's dried grain are extracted by a sodium hydroxide water solution; (4) a brewer's grain mixed solution issubjected to solid-liquid separation; the centrifugal rotating speed is 5000 to 10000rmp; the centrifugation time is 10 to 30min; (5) an acrylamide water solution and butyl acrylate are sequentiallyand dropwise added; after the dropwise adding is completed, continuous heat insulation and stirring are performed for certain time; the sizing agent is obtained. The viscosity of the prepared sizing agent is small; serous fluid can be favorably and better permeated through the inside of pure cotton yarns, so that the sizing efficiency is improved; meanwhile, the per se contains various substances;the size film property is excellent; the hairiness quantity of the pure cotton yarns can be obviously reduced; the wear-resisting property of the yarns is improved.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a method for preparing pure cotton yarn sizing slurry. Background technique [0002] The purpose of sizing is to saturate and cover the yarn with sizing material to increase its strength, improve wear resistance, and reduce hairiness, thereby reducing or preventing warp yarn breakage in the weaving process and improving weaving efficiency. It is a must in the textile industry. An indispensable process. At present, the three main varieties in the size industry are: polyvinyl alcohol, modified starch and acrylic size. Starch size has good film-forming properties, strong affinity with natural fibers, and is easy to desizing; but starch size has insufficient sizing strength, is easy to break, and has poor wear resistance. Polyvinyl alcohol sizing film has high strength and good flexibility, and is often used for sizing pure cotton. However, it is difficult to desizing polyvinyl al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15D06M15/285D06M15/263D06M101/06
Inventor 袁雪生
Owner SUQIAN YUANYANG BIOTECH
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