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Patent Searching and Data


Title:
NONWOVEN FABRIC AND AIR-FILTER FILTERING MATERIAL USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/159654
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an electret nonwoven fabric that has high collection efficiency, low pressure loss, and high strength as a result of using fine fibers and by controlling the fusing between the fibers; and an air-filter filtering material using the same. This nonwoven fabric is characterized in that: the fibers constituting the fabric are made of a thermoplastic resin; the fibers include at least a first component and a second component; the first component and/or the second component contains a crystal nucleating agent; the difference in the crystallization start temperature between the first component and the second component is 5°C or greater; and at least a portion of the first component and the second component is exposed on the surface of the fibers.

Inventors:
HAYASHI, Shingo (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
INABA, Sachio (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
HANE, Ryoichi (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
Application Number:
JP2019/002494
Publication Date:
August 22, 2019
Filing Date:
January 25, 2019
Export Citation:
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Assignee:
TORAY INDUSTRIES, INC. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
International Classes:
D04H3/147; B01D39/16; D04H3/007
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