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Waterproof non-woven heat-preservation material making method and waterproof non-woven heat-preservation material

A technology of water repellent and glue, which is applied in the direction of non-woven fabrics, textiles and papermaking, and liquid-repellent fibers, etc., which can solve problems affecting warmth retention, safety and environmental issues, and increase costs, and achieve excellent warmth retention effects. Increased wash fastness, low-cost manufacturing effect

Active Publication Date: 2014-06-25
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the method of laminating other layers on the non-woven material requires more process steps, and it increases the weight of the thermal material, and lamination has a negative effect on the thickness of the material, which affects the thermal insulation.
Methods of impregnating fabrics or treating fibers with treatment liquids require large quantities of treatment liquids, which not only increase costs, but may also pose safety and environmental concerns

Method used

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  • Waterproof non-woven heat-preservation material making method and waterproof non-woven heat-preservation material
  • Waterproof non-woven heat-preservation material making method and waterproof non-woven heat-preservation material
  • Waterproof non-woven heat-preservation material making method and waterproof non-woven heat-preservation material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]Adopt 2D / 51mm polyester low melting point fiber (Huvis 2080 produced by Huvis Company) 2kg, 2D / 51mm solid polyester fiber (2D solid fiber of Yizheng Chemical Fiber) 8kg. After opening, carding and cross-lapping, it is made into a fiber web. Then spray water repellent (3M Scotchgard) on the surface of the fiber net TM PM-3633), the fiber web enters a three-layer oven, and when it enters the second layer of drying, the water repellent is sprayed on the lower surface of the fiber web. The spray ratios on the upper and lower sides are 0.5gsm, 5gsm and 20gsm respectively. The oven temperature is 120 degrees Celsius, and the drying time is 6-9 minutes. Then the dried non-woven material is wound and packaged. Samples 1-3 of the water-repellent nonwoven thermal insulation material of the present invention were obtained.

Embodiment 2

[0037] Adopt 4D / 51mm polyethylene / polypropylene low-melting point fiber (the ES fiber produced by Guangzhou Yiai Si Company) 2kg, cotton fiber 8kg, after opening, make fiber web by air-laid. Then according to the technique in embodiment 1, adopt organic fluorine water-repellent agent (as a kind of water-repellent agent of Hunstman company, ), the oven temperature is 145 degrees Celsius, and the drying time is 5-8 minutes. There are three kinds of spraying ratios: 1. Spraying on one side, 2gsm; 2. Spraying on both sides, 8gsm; 3. Spraying on both sides, 15gsm; make samples 1'-3' of the water-repellent non-woven thermal insulation material of the present invention.

Embodiment 3

[0039] According to the AATCC22-2005 standard, the water-repellent effect of the water-repellent non-woven thermal insulation material sample of the embodiment and the common non-woven thermal insulation material (carded cross-lapped polyester thermal insulation material) was measured. Under the specified temperature and humidity conditions, use a sprinkler to fix the sample on the instrument, and then spray 250ml of red water. After the water is sprayed, remove the sample and shake it for 2 times. Observe the adhesion of water droplets on the surface of the sample. Figures 2 and 3 show the spray test results of the water-repellent non-woven thermal insulation material sample 1 and the common non-woven thermal insulation material not treated with the water-repellent agent, respectively.

[0040] Measure the weight of the sample before and after spraying water, and calculate the moisture content according to the following formula:

[0041] Moisture content % = (weight after sp...

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Abstract

The invention relates to a waterproof non-woven heat-preservation material making method and a waterproof non-woven heat-preservation material produced by the method. The waterproof non-woven heat-preservation material making method is as follows: a fiber net is formed from a main-body fiber and an optional low melting point fiber by a nonwoven technology, a waterproof agent is sprayed on one or two surfaces of the fiber net in a ratio of 0.5-20 grams per square meter, and then the fiber net is heated at the temperature of 110-200 DEG C for 2-10 minutes. The waterproof non-woven heat-preservation material making method can fast and safely prepare the waterproof non-woven heat-preservation material in low cost, and the produced waterproof non-woven heat-preservation material has good water repellency, and has excellent heat preservation effect both in dry and wet conditions.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, and more specifically, relates to a method for manufacturing a water-repellent thermal insulation material and a water-repellent thermal insulation material manufactured therefrom. Background technique [0002] At present, the common thermal insulation materials on the market mainly include natural flakes (including cotton, wool, hemp, silk, kapok, bamboo fiber, down, etc.) and synthetic fiber flakes (such as polyester, nylon, acrylic, polypropylene, polylactic acid fiber, cellulose fibers, etc.). Natural flakes, such as cotton, wool, and down, have high moisture regain, such as 8.5% moisture regain for cotton and 16% moisture regain for wool. Under high humidity or rain and fog conditions, their warmth retention is greatly reduced. Although the moisture absorption rate of ordinary synthetic fibers is low, such as polyester is only about 0.4%, polypropylene fiber is 0%, and ...

Claims

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Application Information

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IPC IPC(8): D06M15/256D06M15/643D06M15/657D06M15/00D04H1/541D06M101/32D06M101/20D06M101/06
CPCD06M15/657D06M15/277D04H1/54D06M23/06D06M2200/12D06M15/227
Inventor 许凤杨俊文赵国通邹伟葛玥
Owner 3M INNOVATIVE PROPERTIES CO
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