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Preparation method of proteins and protein-based sizes for warp sizing

A warp yarn sizing and protein technology, which is applied in the field of protein and protein-based sizing preparation, and achieves the effects of excellent sizing effect, good film-forming properties and good mechanical properties

Inactive Publication Date: 2013-05-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there has never been a specific report on the use of protein as a textile size material.

Method used

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  • Preparation method of proteins and protein-based sizes for warp sizing
  • Preparation method of proteins and protein-based sizes for warp sizing
  • Preparation method of proteins and protein-based sizes for warp sizing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Soy protein size sizing polyester cotton blended yarn

[0038] (1) Preparation of soybean protein slurry:

[0039] Soybean is used as the raw material of the slurry, placed in a sodium hydroxide solution with a concentration of 0.1%, and the mass percentage of protein is 0.01% to 10%. After the mixed solution is fully stirred, it is heated at a constant temperature of 90°C for 30 minutes. Adjust the pH of the slurry to 7 to 8 with 37% hydrochloric acid, remove undissolved precipitated substances by centrifugation or suction filtration, and finally prepare soybean protein slurries with three concentrations (0.5%, 1%, 1.5%).

[0040] Polyester-cotton blended yarns are sized with three concentrations (0.5%, 1%, 1.5%) of soybean protein sizing at different temperatures (20°C, 50°C, 70°C, and 90°C), and commercial sizing is used The same polyester-cotton blended yarn with sizing was used as the control group. figure 1 The difference in tensile strength of sized and unsize...

Embodiment 2

[0042] Soy protein size sizing polyester yarn

[0043] Soybean protein is used as the raw material of the slurry, placed in a sodium hydroxide solution with a concentration of 0.1%, and the protein mass percentage is 0.01% to 10%. After the mixed solution is fully stirred, it is heated at a constant temperature of 90°C for 30 minutes. The pH of the slurry is adjusted to 7 to 8 with 37% hydrochloric acid, and the undissolved precipitate is removed by centrifugation or suction filtration to finally obtain soybean protein slurry.

[0044] figure 2Tensile strength of polyester yarn sized with soy protein size is demonstrated. The tensile strength of sized polyester yarn was higher than that of unsized yarn, but lower than that of yarn treated with commercial size PVA.

Embodiment 3

[0046] Properties of Wheat Protein Slurry

[0047] Commercially available wheat gluten contains 80% protein and can be used for slurry preparation.

[0048] Wheat protein is used as the raw material of the slurry, placed in a sodium hydroxide solution with a concentration of 0.1%, and the protein mass percentage is 0.01% to 10%. After the mixed solution is fully stirred, it is heated at a constant temperature of 90°C for 30 minutes. The pH of the slurry is adjusted to 7 to 8 with hydrochloric acid with a concentration of 37%, and the undissolved precipitate is removed by centrifugation or suction filtration, and finally the wheat protein slurry is obtained.

[0049] The properties of polyester-cotton blended rovings, polyester rovings, spun yarns and fabrics treated with wheat protein size are listed in Table 1. In Table 1, the stretching and abrasion resistance effects of wheat protein on polyester-cotton blended rovings and fabrics after sizing are similar to those of comme...

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Abstract

The invention relates to a preparation method of proteins and protein-based sizes for warp sizing. The method comprises the following steps: (1) taking, putting the protein raw materials, such as plant proteins, animal proteins or animal-protein-based-materials, which are taken as size raw materials, into a sodium hydroxide solution or an alcohol solution, heating the obtained mixture for 30-60 minutes under the constant temperature condition of 20-90 DEG C, adjusting the pH value of the obtained mixture to be 7-8, removing undissolved precipitates through centrifugation or suction filtration, and eventually producing proteins or protein-based sizes; and (2) soaking thick yarns, spun yarns, fabrics or other textile materials into the sizes for 5-10 minutes at 20-90 DEG C, and after fabrics are soaked in the sizes, carrying out constant-speed rolling in the thickness direction of the fabrics. The proteins and the protein-based sizes prepared by using the method disclosed by the invention have good biodegradable properties, and can be directly applied to the sizing of cotton yarns, polyesters, polyester cotton blended yarns and other blended yarns, and the size preparation is low in cost and does not pollute the environment.

Description

technical field [0001] The invention belongs to the field of preparation methods of protein and protein-based sizing, and in particular relates to a preparation method of protein and protein-based sizing for warp yarn sizing. Background technique [0002] Warp sizing is an important step in the textile weaving process, which gives the warp the strength and friction resistance it needs during weaving. At present, the annual global textile chemical market accounts for about 119.7 billion yuan, of which size chemicals occupy a considerable share. There are about 1.1 million various looms in my country, of which cotton looms account for about 80% (silk looms account for about 15%), and the annual size consumption reaches 550,000 tons. In particular, the high-speed shuttleless looms are increasing at a rate of more than 10,000 units per year, which further promotes the development of pulp. It can be said that size is the second most consumed raw material in textile factories. ...

Claims

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Application Information

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IPC IPC(8): C08J3/02C08L89/00D06M15/15D06M15/11D06M15/333
Inventor 杨一奇纳兰德·雷迪赵奕陈支泽
Owner DONGHUA UNIV
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