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Preparation method of high-moisture-permeability waterproof coating primer resin for spinning

A moisture-permeable waterproof and coating technology, applied in textiles and papermaking, liquid-repellent fibers, fiber treatment, etc., can solve problems such as poor adhesion fastness, poor washing resistance, and insufficient air permeability , to achieve high moisture permeability, good cold resistance, and good bonding fastness

Pending Publication Date: 2022-03-15
浙江华大树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Direct-coating waterproof and moisture-permeable polyurethane clothing fabric is a kind of fabric with good waterproof and breathability. The fabric is directly coated with polyurethane: because the coating covers the fiber pores of the fabric, rainwater will not pass through. fabric so that the fabric has a waterproof function, and at the same time, because the polyurethane coating component contains a hydrophilic component that is transferred to the outside in the form of adsorption-desorption-absorption, moisture permeability is achieved; however, the polyurethane waterproof and moisture-permeable clothing on the existing market It has a certain waterproof and moisture-permeable effect, but it is still a bit stuffy when worn, which shows that the breathable effect is far from meeting people's ideal requirements.
However, the clothing fabric with improved moisture permeability will have poor washing resistance, soft hand feeling and poor bonding fastness to the base fabric.

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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  • Preparation method of high-moisture-permeability waterproof coating primer resin for spinning
  • Preparation method of high-moisture-permeability waterproof coating primer resin for spinning
  • Preparation method of high-moisture-permeability waterproof coating primer resin for spinning

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Experimental program
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Effect test

Embodiment 1

[0035] This embodiment discloses a preparation method of a high moisture-permeable waterproof coating primer resin for textiles, including a reaction kettle. The preparation method includes: putting 85 parts of polyester polyol and 185 parts of polyethylene glycol into the reaction kettle, 30 parts of polyoxypropylene glycol, 6 parts of ethylene glycol, stir and mix evenly. Then add 20 parts of toluene diisocyanate, and control the reaction temperature between 70-80°C for 2-3 hours; maintain the reaction temperature and put in 205 parts of toluene, 50 parts of dimethylformamide, and 8.6 parts of diphenylmethane diisocyanate in batches. Isocyanate: when the viscosity of the resin reaches 100000-150000CPS and the solid content reaches the benchmark of 49-51%, add 0.8 part of terminator methanol and 80 parts of dimethylformamide to terminate the reaction. The cooling package is the finished product.

[0036]

[0037]

[0038] This embodiment is compared with the existing w...

Embodiment 2

[0046] This embodiment discloses a reaction kettle suitable for the preparation of the resin in the previous embodiment. The reaction kettle includes: a kettle body 1, which has a mixing chamber 2 for containing raw materials, and is provided with an inlet connected to the mixing chamber 2. Port 3 and export port 4; Stirring assembly 5, which is located in the mixing chamber 2 for stirring the raw materials; several raw material import barrels 6, which are distributed on the top of the kettle body 1, and each raw material import barrel 6 is equipped with The storage room, the bottom of the raw material import barrel 6 has a raw material outlet 9 connected to the storage room, and the raw material outlet 9 communicates with the import port 3; the baffle 7 is located between the storage room and the raw material outlet 9, when the baffle 7 is located at the first The raw material outlet 9 is closed when the baffle 7 is in the second position, and the raw material outlet 9 is open...

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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Abstract

The invention relates to a preparation method of high-moisture-permeability waterproof coating primer resin for spinning. A product obtained by the method has excellent moisture permeability, water resistance and cold resistance, and is soft in hand feeling and good in fastness; the invention also discloses the reaction kettle, and the reaction kettle can control the opening and closing of the raw material outlet through the cooperation of the driving piece and the baffle plate, so that the feeding of the raw materials can be accurately controlled.

Description

technical field [0001] The invention relates to a preparation method of a high moisture-permeable waterproof coating primer resin for textile. Background technique [0002] After more than ten years of development in the domestic coated fabric industry, with the continuous improvement of the processing technology of coated fabrics, the functions of textiles are becoming more and more abundant, and the performance is also constantly improving. With the improvement of people's requirements for the comfort of clothing fabrics, especially in rainy days, winter, or outdoor sports, not only are the clothes required to be waterproof and warm, but they are also required to have good air permeability, so that clothing with higher temperature The hot steam with perspiration inside is discharged in time to achieve comfort. [0003] Direct-coating waterproof and moisture-permeable polyurethane clothing fabric is a kind of fabric with good waterproof and breathability. The fabric is dir...

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): C08G18/66C08G18/32C08G18/42C08G18/48D06M15/572
CPCC08G18/6607C08G18/4018C08G18/4833C08G18/4825C08G18/3206C08G18/42D06M15/572D06M2200/12
Inventor 张方伟李伟夏永奎马军华高崧闻
Owner 浙江华大树脂有限公司
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