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Spinning sizing agent

A technology of textile sizing and starch sizing, applied in textiles, papermaking, fiber processing, etc., can solve problems such as PVA environmental pollution, reduce yarn breakage rate, sizing film flexibility, good compatibility and stability Effect

Inactive Publication Date: 2013-02-13
WUXI YUTONG FABRIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the environmental pollution problem of PVA in existing starch size, provide a kind of modified starch textile size not containing PVA

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A kind of textile size, it obtains according to the following steps:

[0013] (1) Preparation of polyacrylate emulsion: Add 10g of acrylic acid, 30g of butyl acrylate, 0.2g of initiator, and 0.3g of emulsifier OP-10 into 100g of water, mix well, and heat to 85°C for 2 hours to obtain polyacrylate emulsion. Acrylic ester emulsion, described initiator is the mixture that azobisisobutyronitrile and potassium persulfate mass ratio are 2:1;

[0014] (2) Add 100g of starch to 100g of water, stir and disperse evenly, heat to 45°C, then add 10g of hypochlorous acid aqueous solution with a mass concentration of 10%, react for 30min, then heat to 70°C, keep warm for 40min to obtain hypochlorite Acid-modified starch slurry;

[0015] (3) Mix and stir 100g polypropylene emulsion, 150g hypochlorous acid modified starch slurry and 10g nano-titanium dioxide (particle size: 30-70nm) evenly, heat to 60°C and keep warm for 20min to obtain textile slurry.

Embodiment 2

[0017] A kind of textile size, it obtains according to the following steps:

[0018] (1) Preparation of polyacrylate emulsion: Add 10g of acrylic acid, 30g of butyl acrylate, 0.2g of initiator, and 0.3g of emulsifier OP-10 into 100g of water, mix well, and heat to 80°C for 3 hours to obtain polyacrylate emulsion. Acrylic ester emulsion, described initiator is the mixture that azobisisobutyronitrile and potassium persulfate mass ratio are 2:1;

[0019] (2) Add 100g of starch to 100g of water, stir and disperse evenly, heat to 40°C, then add 10g of hypochlorous acid aqueous solution with a mass concentration of 10%, react for 20min, then heat to 65°C, keep warm for 30min to obtain hypochlorite Acid-modified starch slurry;

[0020] (3) Mix 100g of polypropylene emulsion, 100g of hypochlorous acid modified starch slurry and 10g of nano-titanium dioxide (with a particle size of 30-70nm) and stir evenly, heat to 50°C, and keep warm for 30 minutes to obtain textile slurry.

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Abstract

The invention discloses a spinning sizing agent. The spinning sizing agent is formed by adopting the steps of: mixing crylic acid, butyl acrylate, an initiating agent, an emulsifying agent OP-10 and water according to a mass ratio of 10: 30: 0.2: 0.3: 100 for a reaction to obtain a polyacrylate emulsion; dispersing starch in water for heating to 40-45 DEG C, then adding a hypochlorous acid solution for a reaction for 20-30 min, then heating to 65-70 DEG C, and keeping the temperature for 30-40 min to obtain a hypochlorous acid modified starch size; and uniformly mixing the polyacrylate emulsion, the hypochlorous acid modified starch size and nanometer titanium dioxide according to a mass ratio of 1: (1-1.5): 0.1; heating to 50-60 DEG C, and keeping the temperature for 20-30 min. The spinning sizing agent disclosed by the invention has the advantages of being good in abrasive resistance, compatibility as well as stability, and easy to de-size, obtaining a pliable, tough as well as smooth size film, and being capable of replacing a PVA (Polyvinyl Acetate) sizing agent, reducing end breakage rate of yarns and increasing production efficiency.

Description

technical field [0001] The invention belongs to the field of textile auxiliary materials, and in particular relates to a PVA-free modified starch textile size. Background technique [0002] As the main sizing material for warp yarn sizing, starch has good film-forming ability and good adhesion to natural fibers. It is rich in resources and low in price, and the desizing waste liquid has little environmental pollution. However, the molecular weight of native starch is high, and the molecular chain is composed of cyclic glucose residues, which has high rigidity and high glass transition temperature, and each glucose residue has 3 one-OH groups. The hydrogen bond density between molecular chains is high, and the intermolecular force is very strong. High, the chain segment movement is difficult, showing the characteristics of brittle materials, so that the size and size film of native starch have some defects in the sizing performance. In order to improve the sizing performance...

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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IPC IPC(8): D06M15/11D06M15/263D06M11/46C08F220/18C08F220/06C08F4/30C08F4/04C08B31/06
Inventor 沈梅琴
Owner WUXI YUTONG FABRIC IND
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