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Ultra-low thermal shrinkage polyurethane superfine fiber base cloth and preparation method thereof

A superfine fiber, polyurethane technology, applied in the direction of fiber processing, fiber type, liquid/gas/steam textile material processing, etc., can solve the problems of not fully meeting the customer's high temperature processing requirements, damage to the base fabric, and increasing the cost of drying cloth, etc. Achieve the effect of meeting the requirements of high temperature dry veneer, fine crease, and meeting the requirements of high temperature use

Active Publication Date: 2022-01-25
江苏华峰超纤材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to meet the requirements of heat shrinkage, some people use to adjust the expansion setting temperature to 170-180 degrees, but there are the following disadvantages: first, special high temperature resistant resin needs to be selected; second, if there is an oven failure, the base fabric will stay in the oven , will cause serious damage to the base fabric
Some people use the base cloth to knead the leather and then pre-baked it again. The heat shrinkage value will decrease, but it will increase the cost of baking cloth by 0.5 yuan / m, and the heat shrinkage value is between 1.0-2.5%, which still cannot fully meet the customer's high-temperature processing. Require

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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  • Ultra-low thermal shrinkage polyurethane superfine fiber base cloth and preparation method thereof
  • Ultra-low thermal shrinkage polyurethane superfine fiber base cloth and preparation method thereof
  • Ultra-low thermal shrinkage polyurethane superfine fiber base cloth and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The non-woven fabric formed by needling sea-island short fibers made of nylon 6 and polyethylene is immersed in wet slurry, then coagulated and washed with water, and then the polyethylene is decremented in hot toluene, and the wet cloth is oiled. Continuous kneading to obtain ultra-low heat shrinkage polyurethane microfiber base cloth;

[0041] The spinning, non-woven needle-punching process, impregnation slurry batching, impregnation, coagulation and washing process, and weight reduction process are all conventional processes in this field. References can be made to: Qu Jianbo: Synthetic Leather Technology [M ]. Beijing: Chemical Industry Press. 2015. Processing technology reported in P18-P211.

[0042] Wherein, described wet cloth oiling process parameter comprises:

[0043] The oiling method is padding treatment, three dipping and three rolling;

[0044] The oiling liquid is composed of the following components in mass percentage:

[0045]

[0046] The oil con...

Embodiment 2

[0055] The non-woven fabric formed by needling polyester and polyethylene short sea-island fibers is soaked in wet slurry, then coagulated and washed with water, and then the polyethylene is decremented in hot toluene, and the wet cloth is oiled. Continuous kneading to obtain ultra-low heat shrinkage polyurethane microfiber base cloth;

[0056] The spinning, non-woven needle-punching process, impregnation slurry batching, impregnation, coagulation and washing process, and weight reduction process are all conventional processes in this field. References can be made to: Qu Jianbo: Synthetic Leather Technology [M ]. Beijing: Chemical Industry Press. 2015. Processing technology reported in P18-P211.

[0057] Wherein, described wet cloth oiling process parameter comprises:

[0058] The oiling method is padding treatment, preferably three dipping and three rolling;

[0059] The oiling liquid is composed of the following components in mass percentage:

[0060]

[0061] The conc...

Embodiment 3

[0070] The non-woven fabric formed by needling sea-island short fibers made of nylon 6 and styrene is soaked in wet slurry, then coagulated and washed with water, and then the polyethylene is decremented in hot toluene, and the wet cloth is oiled. Continuous kneading to obtain ultra-low heat shrinkage polyurethane microfiber base cloth;

[0071] The spinning, non-woven needle-punching process, impregnation slurry batching, impregnation, coagulation and washing process, and weight reduction process are all conventional processes in this field. References can be made to: Qu Jianbo: Synthetic Leather Technology [M ]. Beijing: Chemical Industry Press. 2015. Processing technology reported in P18-P211.

[0072] Wherein, described wet cloth oiling process parameter comprises:

[0073]The oiling method is padding treatment, preferably three dipping and three rolling;

[0074] The oiling liquid is composed of the following components in mass percentage:

[0075]

[0076] The conc...

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Abstract

The invention discloses an ultra-low thermal shrinkage polyurethane microfiber base cloth and a preparation method thereof. The preparation method of the ultra-low thermal shrinkage polyurethane ultrafine fiber base cloth comprises the following steps: making nylon 6 or polyester, polyethylene or styrene into The non-woven fabric formed by sea-island short fiber is impregnated in wet slurry, then coagulated and washed with water, and then the polyethylene or styrene is decremented in hot toluene to obtain a wet cloth, and then the wet cloth is impregnated Continuous kneading and drying in the oiling solution can obtain the ultra-low heat shrinkage polyurethane microfiber base cloth; the oiling solution contains amino silicone oil, isomerized decanol polyoxyethylene ether, isomerized decanol polyoxyethylene ether, isomerized decanol Triol ethoxylates, diethylene glycol monobutyl ether and water. The invention has an ultra-low thermal shrinkage rate, the thermal shrinkage value of the finished base fabric is 0.1-1.5%, and the features of fine creases can meet the requirements of high-temperature use and high-temperature dry veneering.

Description

technical field [0001] The invention relates to a polyurethane superfine fiber base cloth and a preparation method thereof. Background technique [0002] In recent years, as the country pays more and more attention to environmental protection, more stringent environmental protection policies have been introduced, forcing enterprises to increase environmental protection facilities and adopt new processes and new equipment to save energy and reduce emissions. [0003] Previously, DMF / TOL, DMF / MEK and other solvent systems were used for dry veneering. Although the DMF recovery technology is mature, the mixed solvent recovery technology is difficult and costly, resulting in the inability to recover low boiling point solvents such as TOL and MEK. Therefore, some people use Pure DMF is used as a solvent carrier to replace the previous mixed solvent systems such as DMF / TOL and DMF / MEK to reduce VOC emissions. Due to the high boiling point of DMF, it is necessary to increase the tem...

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 Patents(China)
IPC IPC(8): D06M15/643D06M15/53D06M13/165D06B3/18D06C23/04D06M101/38D06M101/20D06M101/34D06M101/32
CPCD06B3/18D06C23/04D06M13/165D06M15/53D06M15/6436D06M2101/20D06M2101/38D06M2101/32D06M2101/34
Inventor 于晓成张水观韩芹
Owner 江苏华峰超纤材料有限公司
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