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Multilayer sheet, heat-retaining structure provided with same, and method for producing multilayer sheet

A multi-layer sheet and material technology, applied in chemical instruments and methods, textiles and papermaking, coatings, etc., to achieve the effect of saving resources and excellent washability

Inactive Publication Date: 2014-01-01
OHSHIN MLP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is described in Patent Document 5 that cellulose fibers are not as excellent in heat retention as wool, so they have the disadvantage of feeling cold when they come into contact with the skin.

Method used

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  • Multilayer sheet, heat-retaining structure provided with same, and method for producing multilayer sheet
  • Multilayer sheet, heat-retaining structure provided with same, and method for producing multilayer sheet
  • Multilayer sheet, heat-retaining structure provided with same, and method for producing multilayer sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] [Example 1] Measurement of moisture permeability of thermoplastic polyurethane film

[0125] The water vapor transmission rates were measured on the following conditions using the Lyssy method (JIS K7129 (A method)) for three types of thermoplastic polyurethane films having different thicknesses.

[0126] (1) Measuring instrument

[0127] Lyssy Vapor Permeation Tester L80-4000

[0128] (2) Measurement conditions

[0129] 40℃, 90%RH

[0130] (3) Results

[0131] The results are shown in Table 1.

[0132] 【Table 1】

[0133] sample moisture permeability 12μm thick thermoplastic polyurethane film 923g / m 2 / 24 hours l5μm thick thermoplastic polyurethane film 887g / m 2 / 24 hours 20μm thick thermoplastic polyurethane film 458g / m 2 / 24 hours

Embodiment 2

[0134] [Example 2] Measurement of temperature change due to moisture absorption and heat generation of cellulose hydrolyzate powder

[0135] Heat generation (change in temperature) due to moisture absorption was measured over time for the two types of cellulose hydrolyzate powders.

[0136] (1) Materials used

[0137] (a) Nippon Paper Chemical Co., Ltd. W-100GK: powder of cellulose hydrolyzate, specific gravity = 0.3 to 0.4 g / cm 3 , apparent specific gravity=0.20~0.30g / cm 3 , average particle size = about 37μm

[0138] (b) Nippon Paper Chemical Co., Ltd. W-50GK: powder of cellulose hydrolyzate, apparent specific gravity = 0.15 to 0.20 g / cm 3 , average particle size = about 45μm

[0139] (c) Control sample: polyester-cotton blended fabric (polyester 65%, cotton 45%, 45×45 / 110×76), 40cm×40cm

[0140] (2) Measurement device and measurement conditions

[0141] HUMIDIC CHAMBER IG-42M made by Yamato Science Co., Ltd.

[0142] Temperature measuring device: μR1800 automatic tem...

Embodiment 5

[0215] [Example 5] Measurement of wash resistance of multilayer sheet

[0216] The moisture-permeable base material is a polyester-cotton blended fabric and a thermoplastic polyurethane film, the moisture-permeable resin is an acrylic resin mixed with cellulose hydrolyzate powder, and the moisture-permeable polymer film is a multi-layer sheet of a thermoplastic polyurethane film, and tested. Washability.

[0217] (1) Material of multi-layer sheet

[0218] (a) Moisture-permeable substrate

[0219] Toupe made by using a polyester-cotton blended fabric (65% polyester, 45% cotton, 45×45 / 110×76 strands) and the 12 μm thick thermoplastic polyurethane film used in Example 1 as an acrylic resin adhesive A base material bonded with Acryl Biinder XE-3773 (contains toluene (solvent), solid content concentration = 16 to 18%) manufactured by the company.

[0220] (b) Composition for forming a moisture-permeable resin layer

[0221] By mixing Acryl Biinder XE-3773 (containing toluene (s...

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Abstract

The multi-layered sheet of the present invention is characterized by comprising a layer of a moisture-permeable base material and a layer(s) of a moisture-permeable resin which has(have) been formed on at least one surface of the layer of the moisture-permeable base material, wherein the moisture-permeable resin may also be found inside the layer of the moisture-permeable base material and the moisture-permeable resin comprises a resin that adheres to the moisture-permeable base material and a water-insoluble powdery or granular material that generates heat by moisture absorption and that is a hydrolysate of a substance derived from a plant and / or hydrolysate of a substance derived from an animal, wherein in the total amount of the moisture-permeable resin, the amount of the resin that adheres to the moisture-permeable base material is 20 to 80 mass % and the amount of the water-insoluble powdery or granular material that generates heat by moisture absorption is 80 to 20 mass %, and is excellent in heat-retaining property. The thermal structure of the present invention comprises the multi-layered sheet as the whole of or as a part of its constituent elements, and is for example bedclothes.

Description

technical field [0001] The present invention relates to a multilayer sheet utilizing moisture absorption and heat generation and excellent heat retention, a method for producing the multilayer sheet, and heat-retaining structures such as bedding and cold-proof clothing that use the multilayer sheet as all or part of its constituent elements. Background technique [0002] In order to use the energy resources on the earth with care, heat preservation or heating methods that do not use energy or can save energy usage are attracting attention. Against such a background, there is a need to obtain a sufficient temperature by means of bedding without raising the temperature of the room before or during sleep. [0003] Metals such as aluminum are known to be effective in insulating heat, and structures utilizing the insulating properties of such metals are known. For example, Patent Document 1 discloses that a stretchable and moisture-absorbing substrate (specifically, knitted fabr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/18B32B27/12
CPCB32B27/18B32B27/12A47G9/0207B32B5/022B32B5/024B32B5/026B32B7/12B32B27/14B32B27/40B32B2262/0276B32B2262/062B32B2264/062B32B2264/105B32B2307/304B32B2307/726D06N3/0059D06N3/0061D06N3/0063D06N3/0068D06N3/042D06N2203/026D06N2205/10D06N2209/06D06N2209/121D06N2211/14
Inventor 织田桂藏
Owner OHSHIN MLP CO LTD
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