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

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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

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Example Embodiment

[0036] Example 1

[0037] Soy protein sizing polyester-cotton blended yarn

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

[0039] Using soybeans as the raw material of the slurry, place it in a 0.1% sodium hydroxide solution with a protein mass percentage of 0.01% to 10%. After the mixed solution is fully stirred, heat it at 90°C for 30 minutes at a constant temperature. The pH of the slurry was adjusted to 7 to 8 with 37% hydrochloric acid, and the undissolved precipitated material was removed by centrifugation or suction filtration, and finally three concentrations (0.5%, 1%, 1.5%) of soybean protein slurry were prepared.

[0040] Polyester / cotton blended yarn is sizing with three concentrations (0.5%, 1%, 1.5%) of soy protein slurries at different temperatures (20℃, 50℃, 70℃, and 90℃), and commercial sizing materials are used. Sizing the same kind of polyester-cotton blended yarn as a control group. figure 1 Shows the difference in tensile strength between sizing and unsizi...

Example Embodiment

[0041] Example 2

[0042] Soy protein sizing polyester yarn

[0043] Using soybean protein as the raw material of the slurry, place it in a 0.1% sodium hydroxide solution with a protein mass percentage of 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 precipitation material is removed by centrifugation or suction filtration, and the soybean protein slurry is finally prepared.

[0044] figure 2 Demonstrated the tensile strength of polyester yarn sizing with soybean protein slurry. The tensile strength of sizing polyester yarn is higher than that of unsizing yarn, but it is lower than that of commercial sizing PVA yarn.

Example Embodiment

[0045] Example 3

[0046] The properties of wheat protein slurry

[0047] The commercially available wheat protein contains 80% of the protein and can be used for slurry preparation.

[0048] Using wheat protein as the raw material of the slurry, place it in a 0.1% sodium hydroxide solution with a protein mass percentage of 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 precipitation material is removed by centrifugation or suction filtration, and finally a wheat protein slurry is prepared.

[0049] Table 1 shows the properties of polyester-cotton blended roving, polyester roving, spun yarn and fabric treated with wheat protein slurry. In Table 1, the effect of wheat protein on the stretching and wear resistance of polyester-cotton blended rovings and fabrics after sizing is similar to that 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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