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Starch textile sizing agent for replacing PVA (polyvinyl alcohol)

A technology for textile sizing and sizing, which is applied in the fields of textile sizing and starch textile sizing, can solve the problem that the performance needs to be further improved, and achieve the effects of large elasticity of sizing film, simple preparation method and high thermal stability.

Inactive Publication Date: 2017-05-10
WUXI MINGSHENG TEXTILE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its performance needs to be further improved

Method used

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  • Starch textile sizing agent for replacing PVA (polyvinyl alcohol)
  • Starch textile sizing agent for replacing PVA (polyvinyl alcohol)
  • Starch textile sizing agent for replacing PVA (polyvinyl alcohol)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of starch textile size that replaces PVA, described size is prepared by following raw material by weight:

[0046]

[0047] Wherein, the polyacrylate emulsion is prepared from the following raw materials in parts by weight:

[0048]

[0049]

[0050] Described emulsifier is sodium lauryl sulfate.

[0051] The initiator is ammonium persulfate.

[0052] The defoamer is simethicone.

[0053] The composite modified starch is prepared by the following method: mix wheat starch and tapioca starch with a mass ratio of 1:1 and 100 parts of water into a slurry, add sodium hypochlorite solution, use NaOH to control the pH to 9.0, and oxidize at 30°C for 3 Hours; after the reaction is completed, cool the material to 25°C, add sodium metabisulfite solution to reduce the residual oxidant; then add acetic anhydride to the reaction mass for esterification, use NaOH to control the pH to 7, react at 30°C for 3 hours, and the reaction is complete Finally, use NaOH to ad...

Embodiment 2

[0058]A kind of starch textile size that replaces PVA, described size is prepared by following raw material by weight:

[0059]

[0060]

[0061] Wherein, the polyacrylate emulsion is prepared from the following raw materials in parts by weight:

[0062]

[0063] The emulsifier is OP-10.

[0064] The initiator is ammonium persulfate.

[0065] The defoamer is simethicone.

[0066] The composite modified starch is prepared by the following method: mix wheat starch and tapioca starch with a mass ratio of 1:2 and 100 parts of water into a slurry, add sodium hypochlorite solution, use NaOH to control the pH to 9.0, and oxidize at 40°C for 4 Hours; after the reaction is completed, cool the material to 30°C, add sodium metabisulfite solution to reduce the residual oxidant; then add acetic anhydride to the reaction mass for esterification, use NaOH to control the pH to 7, react at 35°C for 5 hours, and the reaction is complete Finally, use NaOH to adjust the pH value of th...

Embodiment 3

[0071] A kind of starch textile size that replaces PVA, described size is prepared by following raw material by weight:

[0072]

[0073] Wherein, the polyacrylate emulsion is prepared from the following raw materials in parts by weight:

[0074]

[0075] The emulsifier is sodium lauryl sulfate and OP-10 with a volume ratio of 1:1.

[0076] The initiator is ammonium persulfate.

[0077] The defoamer is simethicone.

[0078] The composite modified starch is prepared by the following method: mix wheat starch and tapioca starch with a mass ratio of 1:1.5 and 100 parts of water into a slurry, add sodium hypochlorite solution, use NaOH to control the pH to 9.0, and oxidize at 32°C for 3.5 Hours; after the reaction is completed, cool the material to 28°C, add sodium metabisulfite solution to reduce the residual oxidant; then add acetic anhydride to the reaction mass for esterification, use NaOH to control the pH to 7, react at 33°C for 4 hours, and the reaction is complete ...

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Abstract

The invention provides a starch textile sizing agent for replacing PVA (polyvinyl alcohol). The starch textile sizing agent is prepared from, by weight, 20-32 parts of composite modified starch, 8-15 parts of polyacrylate emulsion, 1-3 parts of defoaming agents and 100 parts of deionized water. The polyacrylate emulsion mainly comprises acrylic acid, vinyl acetate, butyl methacrylate and maleic acid which are polymerized. The starch textile sizing agent has the advantages that serous membranes obtained under the synergistic effects of various components in the starch textile sizing agent are high in elasticity and elongation, serous fluid is high in stability, methods for preparing the starch textile sizing agent are simple, and the starch textile sizing agent is suitable for industrial application.

Description

technical field [0001] The invention belongs to the technical field of textiles and relates to a textile size, in particular to a starch textile size which replaces PVA. Background technique [0002] During weaving, the warp yarn needs to be repeatedly rubbed, stretched, wound and impacted by the movement of the loom. In order to reduce the breakage rate and improve the weaving efficiency, the warp yarn must be sized before weaving. The size coats the surface of the sliver with a layer of smooth, wear-resistant, flexible and strong size film, so that the winding fibers on the surface of the sliver are close to the backbone of the sliver, reducing the friction coefficient of the surface of the sliver, and at the same time, part of the size is infiltrated into the sliver. Inside the yarn, increase the adhesion between fibers and increase the tensile strength of the yarn to adapt to the high tension and mid-beat-up in the weaving process, reduce end breakage and improve efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/11D06M15/263
CPCD06M15/11D06M15/263D06M2200/40
Inventor 张达明
Owner WUXI MINGSHENG TEXTILE MACHINERY
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