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Preparation method of washable polyurethane finishing agent for moisture absorption and sweat releasing

A moisture-wicking, polyurethane technology, used in fiber processing, textiles and papermaking, etc., can solve the problems of blocked pores, poor see-through performance, and low water absorption

Inactive Publication Date: 2019-06-07
江苏瑞洋安泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know: natural fiber, taking cotton as an example, has good hygroscopicity and is comfortable to wear. The moisture regain of the fiber is about 8%, and the hygroscopicity is good. 40-50% larger, the fabric becomes tighter and the pores are blocked, hindering the heat exchange and moisture exchange between the microclimate between the skin and the clothing and the external environment, and the cotton fiber has a high water absorption and water retention rate, and it is difficult to quickly discharge sweat and sweat vapor In vitro, resulting in a feeling of stuffiness; moreover, due to the decrease in air permeability and sticking to the skin, at the same time, the water dispersion speed is relatively slow, thus causing a sense of dampness to the human body; synthetic fibers, such as polyester, have low water absorption and are transparent Poor performance, due to its static electricity accumulation, it is easy to cause entanglement troubles when wearing

Method used

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  • Preparation method of washable polyurethane finishing agent for moisture absorption and sweat releasing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. In a 500ml glass reaction kettle, add 20 parts of polypropylene glycol, and at the same time, start stirring at a speed of 200rpm, and heat;

[0024] 2. After the feeding is completed, the temperature of the material can be raised to 65°C, and the stirring is stopped;

[0025] 3. Add 4 parts of polyethylene glycol (solid, needs to be heated and melted), raise the temperature to 100°C, observe whether it melts into a liquid, and start stirring after it is basically liquid, at a speed of 200rpm;

[0026] 4. Start vacuuming to remove water, the water removal temperature is 120°C, the water removal time is 2 hours, and the water removal pressure is -0.099MPa; after the water removal is completed, stop the vacuum;

[0027] 5. Introduce nitrogen gas for flat pressure and ensure that the kettle maintains a slight positive pressure, so that the temperature of the material is cooled to 100.0±5°C, and the cooling is stopped;

[0028] 6. Reduce the stirring speed, adjust the r...

Embodiment 2

[0034] 1. In a 500ml glass reaction kettle, add 19 parts of polypropylene glycol, and at the same time, start stirring at a speed of 200rpm, and heat;

[0035] 2. After the feeding is completed, the temperature of the material can be raised to 70°C, and the stirring is stopped;

[0036] 3. Add 5 parts of polyethylene glycol (solid, needs to be heated and melted), raise the temperature to 100°C, observe whether it melts into a liquid, and start stirring after it is basically liquid, at a speed of 200rpm;

[0037] 4. Start vacuuming to remove water, the water removal temperature is 120°C, the water removal time is 2 hours, and the water removal pressure is -0.099MPa; after the water removal is completed, stop the vacuum;

[0038] 5. Introduce nitrogen gas for flat pressure and ensure that the kettle maintains a slight positive pressure, so that the temperature of the material is cooled to 100.0±5°C, and the cooling is stopped;

[0039] 6. Reduce the stirring speed, adjust the r...

Embodiment 3

[0045] 1. In a 500ml glass reaction kettle, add 18 parts of polypropylene glycol, at the same time, start stirring at a speed of 200rpm, and heat;

[0046] 2. After the feeding is completed, the temperature of the material can be raised to 65°C, and the stirring is stopped;

[0047] 3. Add 5 parts of polyethylene glycol (solid, needs to be heated and melted), raise the temperature to 100°C, observe whether it melts into a liquid, and start stirring after it is basically liquid, at a speed of 200rpm;

[0048] 4. Start vacuuming to remove water, the water removal temperature is 120°C, the water removal time is 2 hours, and the water removal pressure is -0.099MPa; after the water removal is completed, stop the vacuum;

[0049] 5. Introduce nitrogen gas for flat pressure and ensure that the kettle maintains a slight positive pressure, so that the temperature of the material is cooled to 100.0±5°C, and the cooling is stopped;

[0050] 6. Reduce the stirring speed, adjust the rotat...

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Abstract

The invention relates to a preparation method of a washable polyurethane finishing agent for moisture absorption and sweat releasing and belongs to the technical field of spinning chemical industry. The washable polyurethane finishing agent for moisture absorption and sweat releasing comprises the following main synthetic raw materials including, by weight, 17-20 parts of polypropylene glycol, 4-5parts of polyethylene glycol, 1-2 parts of methyl diethanolamine, 4-5 parts of isophorone diisocyanate, 8-9 parts of ethanol and the balance of water. After the finishing agent is adopted, a fabric can avoid the problems in the prior art, the moisture absorption and sweat releasing performance is greatly improved, the fabric will not be too tight anymore, and air pores will not be blocked anymore; the heat / moisture exchange between the microclimate of the skin and clothes and the external environment is normal, users cannot feel stiflingly hot, the air permeability is high, the clothes cannotbe stuck on the skin, static electricity cannot be generated, and the comfort level is improved for the users.

Description

technical field [0001] The invention relates to a preparation method of a washable polyurethane type moisture-absorbing and sweat-wicking finishing agent, which belongs to the technical field of textile chemicals. Background technique [0002] In recent years, with the improvement of the quality of life, people have higher pursuit of fitness and body shaping, and more and more athletes are engaged in outdoor activities. Sports enthusiasts prefer natural fiber clothing, especially pure cotton fabric, which is soft, comfortable, natural and environmentally friendly , simple care, durable, favored by the pro. [0003] As we all know: natural fiber, taking cotton as an example, has good hygroscopicity and is comfortable to wear. The moisture regain of the fiber is about 8%, and the hygroscopicity is good. 40-50% larger, the fabric becomes tighter and the pores are blocked, hindering the heat exchange and moisture exchange between the microclimate between the skin and the clothi...

Claims

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Application Information

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IPC IPC(8): D06M15/568C08G18/66C08G18/48C08G18/32
Inventor 张旭建李坚黄兵宗雅君
Owner 江苏瑞洋安泰新材料科技有限公司
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