Polyurethane finishing method of wool fabric

A technology of polyurethane and water-soluble polyurethane, which is applied in the field of polyurethane finishing of wool fabrics, can solve the problems of poor shape retention of pleats of fibers, etc., and achieve the effect of improving the shape retention of pleats and improving the qualitative effect

Inactive Publication Date: 2019-03-19
江苏阳光毛纺服装技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the fabric is treated with water-based polyurethane alone, the anti-felting performance of the wool fiber in the fabric is improved, but the polyurethane macromolecules are mainly deposited on the surface of the fiber and do not enter the interior of the fiber, which does not affect the crystal structure of the fiber. The pleating performance of the fabric during the wearing process is poor in shape retention

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

[0018] Example 1 The polyurethane finishing method of wool fabric includes the following steps:

[0019] S1: Fully dissolve water-soluble polyurethane, alcohol amine, sodium sulfite, hydrogen bond breaking reagent and organic acid with mercapto group in distilled water to prepare styling agent treatment solution;

[0020] S2: Put the wool fabric in the styling agent treatment solution, soak for 5 minutes at room temperature, and pad the fabric to 70% surplus rate. Spread the padding fabric flat, press the styling equipment at 130°C, and put it in an oven at 100°C Bake for 2min;

[0021] Among them, the volume ratio of alcoholamine to distilled water in the styling agent treatment solution is 1:20, the weight percentage of sodium sulfite in the styling agent treatment solution is 3%, the weight percentage of organic acid is 4%, and the weight percentage of water-soluble polyurethane is 4%. .

[0022] The hydrogen bond breaking reagent is urea, and the alcohol amine is selected from mo...

Embodiment 2

[0026] The difference between Embodiment 2 and Embodiment 1 is:

[0027] S2: Put the wool fabric in the styling agent treatment solution, immerse the woolen fabric for 10min at room temperature, padding treatment to 60% of the surplus rate, spread the padding fabric flat, press the styling equipment at 140℃, in an oven at 90℃ Bake for 3min;

[0028] Among them, the volume ratio of alcoholamine to distilled water in the styling agent treatment solution is 3:100, the weight percentage of sodium sulfite in the styling agent treatment solution is 7%, the weight percentage of organic acid is 1.5%, and the weight percentage of water-soluble polyurethane is 8%. .

[0029] The hydrogen bond breaking reagent is formamide, and the alcohol amine is one or a combination of N-methyldiethanolamine.

[0030] The organic acid having a mercapto group is mercaptosuccinic acid.

Embodiment 3

[0032] The difference between Embodiment 3 and Embodiment 1 is:

[0033] S2: Put the wool fabric in the styling agent treatment solution, soak for 7 minutes at room temperature, and pad the fabric to a surplus rate of 65%. Lay the padding fabric flat, press the styling equipment at 135°C, and put it in an oven at 95°C. Baking for 2.5min;

[0034] Among them, the volume ratio of alcoholamine to distilled water in the styling agent treatment liquid is 1:25, the weight percentage of sodium sulfite in the styling agent treatment liquid is 5%, the weight percentage of organic acid is 2.5%, and the weight percentage of water-soluble polyurethane is 6%. .

[0035] The hydrogen bond breaking reagent is guanidine hydrochloride.

[0036] Alcoholamine is a combination of diglycolamine and diisopropanolamine in a weight ratio of 1:1, and the organic acid with a mercapto group is dimercaptosuccinic acid.

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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PUM

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Abstract

The invention discloses a polyurethane finishing method of a wool fabric. The polyurethane finishing method includes the steps of setting agent treating fluid preparation and wool fabric finishing. Setting agent treating fluids not only contain waterborne polyurethane, but also contain sodium sulfite serving as reducing agents and hydrogen bond destroying reagents, and the setting effect of the finished fabric is improved by crosslinking hydramine small molecules and polyurethane macromolecules with surface groups of wool fibers. Compared with independent waterborne polyurethane finishing in the prior art, the polyurethane finishing method has the advantage that the pleat shape preserving performance of the fabric can be improved.

Description

Technical field [0001] The invention belongs to the technical field of fabric finishing, and specifically relates to a polyurethane finishing method for wool fabrics. Background technique [0002] Internationally, products that can be machine-washed, tumble-dried, less ironed, and pleated resistant have become easy-care products. Wool garments with a care mark are highly competitive in the market. As an easy-care wool garment, the first thing to solve is the felting phenomenon of the fabric in the machine washing process. Secondly, the surface of the fabric is smooth after drying, and it also needs to have certain inherent pleated shape retention. However, the scaly layer structure of the wool fiber and the wet swellability of the fiber determine the shortcomings of easy felting of the wool fabric and difficulty in maintaining the shape. [0003] Non-chlorine wool anti-felt finishing technology has become the development trend of wool anti-shrink finishing. Polyurethane has good ...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M13/368D06M11/54D06M13/252D06M101/12
CPCD06M11/54D06M13/252D06M13/368D06M15/564D06M2101/12
Inventor 陶海燕周胜毅桂明胜周建玉
Owner 江苏阳光毛纺服装技术开发有限公司
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