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Self-cross-linking type waterborne polyacrylate powder-free base slurry for clothing fusible interlining

A technology of polyacrylate and polyacrylate emulsion, which is applied in textiles, papermaking, fiber treatment, etc., and can solve the inherent quality (dry resistance, washing performance cannot be guaranteed, product dispersion, poor stability, washing resistance and cold resistance) Improve self-crosslinking performance, improve water resistance, and soft hand feeling

Active Publication Date: 2013-08-07
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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  • Self-cross-linking type waterborne polyacrylate powder-free base slurry for clothing fusible interlining
  • Self-cross-linking type waterborne polyacrylate powder-free base slurry for clothing fusible interlining
  • Self-cross-linking type waterborne polyacrylate powder-free base slurry for clothing fusible interlining

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0073] 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.

[0074] Table 1 Different polymerization methods and formula composition

[0075]

[0076]

[0077] Table 2 shows the stability and emulsion properties of different polymerization methods.

[0078] Table 2 Stability and emulsion properties of different polymerization methods

[0079]

Embodiment 1

[0081] 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.

[0082] 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 present invention discloses a self-cross-linking type waterborne polyacrylate powder-free base slurry for a clothing fusible interlining. The self-cross-linking type waterborne polyacrylate powder-free base slurry is prepared from a waterborne polyacrylate emulsion, a waterborne acrylic acid thickener, an additive, deionized water and ammonia water, wherein the waterborne polyacrylate emulsion is prepared from a pre-emulsion, a seed emulsion, a secondary emulsion, a 10% adipic dihydrazide aqueous solution and ammonia water. According to the present invention, diacetone acrylamide (DAAM) is introduced into the system, and the adipic dihydrazide (ADH) modified branch chain is introduced, such that the cross-linking sites in the system can be increased so as to improve a self-cross-linking performance of the aqueous PA and form the medium temperature self-cross-linking type base slurry; and the baking temperature can be appropriately reduced by 10-30 DEG C so as to save energy sources.

Description

technical field [0001] The invention relates to a self-crosslinking water-based polyacrylate powder-free base paste for clothing adhesive lining. 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 misconceptions such as "powder-free b...

Claims

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Application Information

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IPC IPC(8): D06M15/285D06M15/263C08J3/24C08F220/14C08F220/18C08F220/06C08F220/58C08F2/26C08F2/30
Inventor 殷伟乔
Owner 长兴三伟热熔胶有限公司
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