MOISTURE-PERMEABLE SHEET

• Main Authors: MATSUI RYOSUKE, NISHIMURA NAOYA, IKOMA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 27.07.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

PROBLEM TO BE SOLVED: To provide a moisture-permeable sheet excellent in comfort at a clothing time in virtue of high flexibility and moisture permeability, excellent in tolerance to a severe use environment in virtue of high peel strength, and having both amenity and robustness jointly when being used, especially, as a clothing.SOLUTION: In a moisture-permeable sheet which is a conjugate of a fiber layer and a polyolefin-based porous film, a moisture vapor permeability is 250 g/m-hr or higher, a peel strength between the fiber layer and the polyolefin-based porous film is 85-350 gf/25 mm, and a loop stiffness per 1 g/mbasis weight is 140 mgf/25 mm or lower.SELECTED DRAWING: None 【課題】高い柔軟性、透湿性により着衣時の快適性に優れ、高い剥離強度により過酷な使用環境での耐性に優れ、特に衣服として用いた際に快適さと丈夫さを兼ね備えた透湿性シートを提供すること。【解決手段】繊維層とポリオレフィン系多孔性フィルムとの接合体であり、透湿度が２５０ｇ／ｍ２・ｈｒ以上であり、前記繊維層と前記ポリオレフィン系多孔性フィルムとの剥離強度が８５〜３５０ｇｆ／２５ｍｍであり、目付け１ｇ／ｍ２当たりのループスティフネスが１４０ｍｇｆ／２５ｍｍ以下である透湿性シートとする。【選択図】なし