Water soluble vinylon and non-woven cloth containing the same vinylon

A polyvinyl alcohol-based, water-soluble technology, applied in the direction of fiber chemical characteristics, dry spinning method, wet spinning method, etc., can solve the problems of reducing stretching temperature or stretching ratio, constraints, and inability to increase fiber crystallinity, etc., to achieve The effect of cheap manufacturing
CN1637177AInactive Publication Date: 2005-07-13KURARAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KURARAY CO LTD
Publication Date
2005-07-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided are water-soluble PVA fibers having practicable fiber properties such as good mechanical properties and chemical resistance not detracting from their original water-solubility, and a water-soluble nonwoven fabric comprising the fibers. The nonwoven fabric also has practicable properties such as good mechanical properties and chemical resistance, and has many applications, for example, for base fabrics for chemical lace. The water-soluble PVA fibers are reacted with from 0.01 to 5 mol% of an ionic group-having compound and satisfy the following relational formula in which Xcf (%) indicates the degree of crystallinity of the fibers and Wtb (DEG C) indicates the dissolving temperature in water of the fibers: Wtb < 2.50Xcf-70, wherein 30% ≤ Xcf ≤ 80%.
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Description

technical field

[0001] The present invention relates to water-soluble polyvinyl alcohol (hereinafter abbreviated as PVA)-based fibers and non-woven fabrics containing the fibers, which do not impair the existing water-solubility and have sufficient fiber properties such as mechanical properties and chemical resistance for practical use. Cloth can be used extremely effectively in many applications including base fabrics for chemical lace. Background technique

[0002] In the past, as water-soluble fibers, PVA-based fibers, cellulose-based fibers such as carboxymethyl cellulose, polyalginic acid-based fibers, polyalkylene-based fibers, etc. have been known. Only PVA-based fibers are required for non-woven fabrics such as needle punching, textiles such as weaving, or knitting processes that require excellent mechanical properties and chemical resistance. In addition, in recent years, there is a strong desire to protect the global environment and protect consumers. It is clearl...

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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