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Patent Searching and Data


Title:
FILAMENTS FOR BEVERAGE EXTRACTION FILTER AND WOVEN FABRIC COMPRISING SAME FOR BEVERAGE EXTRACTION FILTER
Document Type and Number:
WIPO Patent Application WO/2019/009386
Kind Code:
A1
Abstract:
Provided are: filaments for obtaining a beverage extraction filter which is highly safe environmentally, can retain the strength of the fabric, and has excellent formability; and woven fabric obtained therefrom. The filaments are core-sheath composite filaments for a beverage extraction filter that comprise a core ingredient, which comprises a homopolyester having a melting point of 220°C or higher, and a sheath ingredient, which comprises a copolyester having a melting point lower by at least 40°C than that of the core ingredient and obtained mainly from terephthalic acid and a diol. Through 1-hour boiling in an aqueous ethanol solution having a concentration of 10 mass%, the filaments have a mass change of 4% or less and have an amount of released heavy metals less than 0.1 ppm.

Inventors:
NAKANO Yudai (6-1-1, Shimokoubata-cho, Sabae-sh, Fukui 38, 〒9160038, JP)
TAKAHIRA Sunao (6-1-1, Shimokoubata-cho, Sabae-sh, Fukui 38, 〒9160038, JP)
IGURO Toshihiro (6-1-1, Shimokoubata-cho, Sabae-sh, Fukui 38, 〒9160038, JP)
SAITO Tomonori (6-1-1, Shimokoubata-cho, Sabae-sh, Fukui 38, 〒9160038, JP)
Application Number:
JP2018/025613
Publication Date:
January 10, 2019
Filing Date:
July 05, 2018
Export Citation:
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Assignee:
KB SEIREN, LTD. (6-1-1, Shimokoubata-cho Sabae-sh, Fukui 38, 〒9160038, JP)
International Classes:
B65D77/00; D01F8/14; D03D15/00; D03D15/02
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