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Water-vapor-permeable waterproof composite fabric, waterproof textile article containing same and processes for producing same

A composite material and water vapor technology, which is applied in textiles and papermaking, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of coating film damage, deterioration of waterproof performance of coated fabrics, etc., and achieve excellent washing resistance Effect

Inactive Publication Date: 2003-12-03
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a home washing step with water is applied to the coated fabric, the coating film is easily damaged, so as to cause the waterproof performance of the coated fabric to deteriorate to a large extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0135] The invention will be further illustrated by examples, which are representative only and do not limit the scope of the invention in any way. The tests for the polymers used in the examples and the properties of the products in the examples were carried out as follows.

[0136] (1) Intrinsic viscosity (IV) of polyetherester elastomer (PEE)

[0137] The intrinsic viscosity of PEE is measured at a temperature of 35° C. in a mixed solvent composed of phenol and tetrachloroethane in a mixing weight ratio of 6:4.

[0138] (2) Melting temperature of PEE

[0139] The melting temperature of PEE was measured by a differential scanning calorimeter (model: DSC 29290, manufactured by TAINSTRUMENT) in a nitrogen stream at a temperature increase rate of 10° C. / min.

[0140] (3) The content of ethylene glycol or butanediol in PEE

[0141] The content of ethylene glycol or butanediol in PEE was measured at 90 MHz by using an FT-NMR analyzer (model: R1900 manufactured by HITACHI LIMIT...

preparation Embodiment 1

[0173] (Preparation of PEE-A-1 to PEE-A-8 resins)

[0174] In the preparation of PEE-A-1, a reaction mixture of the following substances was placed in a reactor equipped with a still: 194 parts by mass of dimethyl terephthalate (DMT) and 43.3 parts by mass of ethylene glycol (EG), the butanediol (TMG) of 72 mass parts, the average molecular weight of 124 mass parts is the catalyst that is made up of the polyethylene glycol (PEG) of 4,000 and 0.39 mass part; Then in from While removing by-products consisting of methanol in the reactor, it was subjected to a transesterification reaction at a temperature of 220° C. for 10 minutes. After the transesterification reaction was completed, the resulting reaction mixture was put into a reactor equipped with a stirrer, a nitrogen introduction inlet, a pressure drop outlet and a still, and it was heated to 240° C. with 0.31 parts by mass of heat A stabilizer (trademark: SUMILIZERGS, produced by SUMITOMO CHEMICAL CO., LTD.) was mixed; the...

preparation Embodiment 2

[0189] (Preparation of PEE-B resin)

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PUM

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Abstract

A water-vapor-permeable waterproof composite fabric having high flexibility, water pressure resistance and water laundering resistance is constituted from a substrate fabric and a polyether-ester elastomer (PEE-A) film layer laminated to the substrate fabric through a polyether-ester elastomer (PEE-B) binder layer, each of PEE-A and PEE-B including polyalkylene glycol residues, alkyleneglycol residues and dicarboxylic acid residues, in which composite fabric, (1) the PEE-A contains 5 to 25 % by mass of polyethyleneglycol residues, (2) the PEE-A film layer is 5 to 5 mu thick, (3) the PEE-B has a melting temperature of at least 20 DEG C below that of the PEE-A and (4) the PEE-B binder layer is present in an amount of 2 to 20 g / m<2>.

Description

technical field [0001] The present invention relates to water vapor permeable waterproof composite fabrics, waterproof textile articles comprising them and methods for producing them. In particular, the present invention relates to water vapor permeable waterproof composite fabrics having excellent water vapor permeability and excellent water pressure resistance (resistance to water penetration under pressure), even after repeated washing thereof , waterproof textile articles comprising them and methods for producing them with high efficiency. Background technique [0002] When the fabric is worn on the human body as clothing, the clothing is required to have both high water vapor permeability so that water vapor formed from sweat produced by the human body escapes through the clothing, and high water permeation resistance, e.g. , rain passes through the garment in order to prevent water from penetrating into the garment. [0003] As a method for satisfying the above two r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12D06N3/12
CPCB32B27/12B32B2307/7265B32B2307/724B32B2305/18D06N3/121
Inventor 本名浩
Owner TEIJIN LTD
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