Other

Chisso Corporation

Akira Yamanaka

Hiroshi Okamoto

Hiroki Miyamatsu

Shin-ichi Inoue

Masataka Sano

Kimi Yoshida

Tetsuo Kanagawa

Tomio Yamazawa

Nobuo Goto

Takahiro Sugimoto

Yasuhiro Yabuuchi

The invention is aimed to provide a core-sheath type composite filament, in which a functional component is hardly lost due to volatilization during the melt forming; bleeding of the internally added functional component is effectively inhibited; the internally added functional component does not adversely affect spinning properties, stretching properties, strength and dimensional stability; the use of the functional component can be greatly reduced, leading to a reduction of production cost; superior functionalities of deodorizing properties and antimicrobial properties can be exhibited to a maximum extent; even when contacting with water, the functionalities can be kept over a long time; and the composite filament is highly safe to a human body. The invention is also aimed to provide a process for the production of the core-sheath type composite filament as well as a heat fused article obtained from the composite filament. The core-sheath type composite filament of the invention is composed of a core component X and a sheath component Y, wherein the core component X is formed from a first polyolefin resin (H), and the sheath component Y is formed from a second polyolefin resin (L) compounded with at least one functional component (A) selected from the group consisting of a catechin, a saponin, a tea-leaf powder, a tea-leaf extract, and tannin (tannic acid), and a ceramics component (C).

Composite filament, process for the production of the same, and heat fused article

A bulky and reinforced non-woven fabric and a process for producing the fabric are provided, which fabric is composed of a web consisting of 30-100% by weight of hot-melt-adhesive fibers and 70-0% by weight of fibers having a m.p. higher than that of the hot-melt-adhesive component of the hot-melt-adhesive fibers and monofilaments, fibers constituting the web being adhered onto one another and also to the monofilaments and the fabric having wrinkles at a wavelength of 0.1 to 20 mm over the whole surface of the fabric; and which process comprises arranging monofilaments of a percentage of shrinkage of 20% or higher under heat treatment conditions for melt-adhering the hot-melt-adhesive fibers over the whole surface of the web; adhering the fibers constituting the web onto one another and also to the monofilaments through hot-melt-adhesion; and also causing the web to shrink through shrinkage generated in the monofilaments.

Bulky and reinforced non-woven fabric

Growing community of inventors

Moriyama, Japan

Akira Yamanaka