Method for preparing clothing adhesive lining from self-crosslinking water-borne polyacrylate powderless base mud

A technology of polyacrylate and polyacrylate emulsion, applied in the direction of adhesive type, ester copolymer adhesive, etc., can solve the inherent quality (dry resistance, water washability not guaranteed, poor water washability and cold resistance) , product dispersion, poor stability and other problems, to achieve the effect of improving self-crosslinking performance, soft hand feel, and improved water resistance

Active Publication Date: 2015-06-10
长兴三伟热熔胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the washing resistance and cold resistance of polyacrylate are relatively poor, and its "cold brittle and hot sticky" characteristics limit its application in medium and high-grade powder-free base pulp
When some fusible interlining manufacturers currently use powder-free base pulp, most of them use common polypropylene latex in other industries and a simple manual labor and physical mixing process with water. The dispersion and stability of the product are poor, and large-scale production coating It is difficult to control the process during layer operation, and the internal quality (drying resistance, washing performance) cannot be guaranteed

Method used

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  • Method for preparing clothing adhesive lining from self-crosslinking water-borne polyacrylate powderless base mud
  • Method for preparing clothing adhesive lining from self-crosslinking water-borne polyacrylate powderless base mud
  • Method for preparing clothing adhesive lining from self-crosslinking water-borne polyacrylate powderless base mud

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0071] The present invention adopts the semi-continuous emulsion polymerization process and seed emulsion polymerization method of pre-emulsified monomers to carry out conventional emulsion polymerization and core-shell emulsion polymerization respectively on the same formula, and designs the composition of the core-shell to synthesize a series of polymer emulsions. The formulation composition is shown in Table 1.

[0072] Table 1 Different polymerization methods and formula composition

[0073]

[0074]

[0075] Table 2 shows the stability and emulsion properties of different polymerization methods.

[0076] Table 2 Stability and emulsion properties of different polymerization methods

[0077]

Embodiment 1

[0079] Take the PRA-2 sample emulsion in Preparation Example 1 and cool it down to room temperature, slowly add 10% adipic hydrazide (ADH) aqueous solution, and neutralize it with ammonia water until the pH value is 7-8. Filtration, discharge, to obtain a milky white emulsion in blue light, which is the product of the present invention—a main emulsion of self-crosslinking type water-based polyacrylate powder-free base slurry for clothing adhesive interlining.

[0080] The basic formula of the powder-free base slurry includes, in addition to the medium water, the main emulsion of the base, a pH regulator, a thickener, a tackifier, a whitening agent, a preservative, and a defoamer. Calculate the amount of deionized water and main emulsion according to the preset plan, adjust the pH value of the system to neutral with ammonia water, and then add the corresponding water-based additives to adjust the viscosity [viscosity <30000 (mPa·s / 20°C)] After that, the product of the present i...

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Abstract

The invention discloses a method for preparing a clothing adhesive lining from self-crosslinking water-borne polyacrylate powderless base mud. The method comprises the following steps: at first, mixing water-borne polyacrylate emulsion, auxiliaries and deionized water, wherein the water-borne polyacrylate emulsion is prepared from pre-emulsion, seed emulsion, secondary emulsion, 10% adipic dihydrazide water solution and ammonia water, and the pre-emulsion is prepared from methyl methacrylate, butyl acrylate, acrylic acid, diacetone acrylamide, alkenamides sodium ethylenesulphonate, fatty alcohol-polyoxyethylene ether and deionized water; and then, adjusting the pH value of the system to be neutral with ammonia water, adding a water-borne acrylic thickener, and adjusting the viscosity to be less than 30,000. Soap-free emulsion prepared from lyophobic and hydrophilic monomers through a core-shell emulsion copolymerization technology is applied to the powderless base mud, so that the product has cleaner characteristics in preparation process and the product itself, meets green, environmental-friendly and healthy requirements, and conforms to the historical trend of the time.

Description

technical field [0001] The invention relates to a preparation method of self-crosslinking water-based polyacrylate powder-free base paste for clothing adhesive interlining. Background technique [0002] Since the appearance of double-point interlining, due to its outstanding advantages such as superior comprehensive performance, beautiful appearance, and wide application range, it has become the most important type of interlining industry in my country in less than ten years of development. Modern new coating technology with added value turns a new page. However, from a technical point of view, the field of double-point special powder-free base pulp is still random and blind. There are even a considerable number of interlining manufacturers who have chosen a large number of other industries to mix emulsion and water. There is no way to talk about washing resistance and solvent resistance when making double-dot interlining with powder-free base pulp. Influenced by misconcept...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F220/58C08F2/26C08F2/30C08J3/24C09J133/14
Inventor 殷伟乔
Owner 长兴三伟热熔胶有限公司
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