A method for improving the formulation of adhesive for sizing by utilizing polyurethane and ethylene glycol phenyl ether

Abstract

The invention relates to a method for improving a formula of a binder for sizing by using ethylene glycol monophenyl ether and polyurethane and belongs to the field of textile processing. According to the method, the polyurethane and the ethylene glycol monophenyl ether are added into the formula of the binder for sizing, i.e., phosphate starch, acrylate and water, wherein the mass of the phosphate starch accounts for 3-5% the total mass of the binder for sizing, the mass of the acrylate accounts for 3-5% the total mass of the binder for sizing, the mass of the polyurethane accounts for 0.1-1% the total mass of the binder for sizing, and the mass of the ethylene glycol monophenyl ether accounts for 0.1-2% the total mass of the binder for sizing. The polyurethane and the ethylene glycol monophenyl ether are added into the binder for mixed sizing, i.e., the phosphate starch and the solid acrylate, so that the permeability of the binder for mixed sizing and the binder-for-sizing coating property of yarn surface can be obviously improved, and thus, the properties of a size film are improved.

Description

Technical field [0001] The invention relates to a method for improving the formulation of a binder for sizing by using polyurethane and glycol phenyl ether, and belongs to the technical field of textile processing. Background technique [0002] When weaving, the action of the warp yarn in the heald frame from the warp beam to the weaving mouth will produce about 4000 reciprocating movements. In this process, the role played by the binder that protects the warp yarn performance is to increase strength and reduce hairiness. The three main types of adhesives commonly used in the textile processing industry are starch, acrylic and polyvinyl alcohol. The performance of the binder plays an important role in the performance of the warp yarn after padding the binder. Therefore, in order to protect the warp yarns, the warp yarns are padded with adhesive. The adhesive protects the warp yarns from two aspects: one is that the adhesive penetrates into the yarn to increase the cohesive forc...

AI Technical Summary

Problems solved by technology

Such as the Chinese publication "Macromolecular Materials Science and Engineering", the publication date is August 2009, the title of the article is the texture structure and performance of the phosphate starch / polyacrylate blend film. Supplemented with polyacrylate size to improve the flexibility of the size film, the disadvantage is that only phosphate starch supplemented with acrylic polyacrylate to improve the flexibility of the size film still cannot meet the requirements of the warp yarn during weaving. The requirements of surface size film flexibility, such as the Chinese publication "Cotton Textile Technology", the date of publication in November 2010, the title of the article is the study of maleic anhydride esterified acrylate grafted starch size, and this document introduces a The method of utilizing maleic anhydride to esterify acrylate grafted starch to improve the flexibility of the size film has the disadvantages that the starch grafting process is long, time-consuming, and energy-consuming, such as Chinese Patent Publication No. CN102329437A, disclosed On January 25, 2012, the name of the invention was a degradable starch composite slurry. The application disclosed a slurry compounded with plant starch, acetylated distarch phosphate, polyacrylic acid, starch and PVA. The disadvantage is that although the toughness of the size film is increased, the PVA cannot be degraded quickly after desizing and pollutes the environment.

Such as China's public publication "Cotton Textile Technology", the publication date was July 2012, and the title of the article is the modification of starch size by water-based polyurethane. This document has explained that adding water-based polyurethane components to starch size can make adhesion The strength is improved, and the mechanical properties of the size film are improved. The disadvantage is that the improvement of the performance of the size film by adding water-based polyurethane still cannot satisfy the adhesion of the size to the yarn.

Chinese Patent Publication No. CN103923297A, published on July 16, 2014, the name of the invention is a kind of water-based polyurethane for toughening starch size film and its preparation method and application. The toughened polyurethane synthesis method solves the hard and brittle characteristics of the starch film after starch sizing and film formation. Due to the use of polyurethane, the adhesion performance of the mixed slurry of starch and polyurethane to fibers is improved. The disadvantage of the disclosed polyurethane is that it is mainly The applicable object is acid-thinned starch, and the adhesion performance of the mixed slurry of starch and polyurethane in this technical scheme is slightly improved