Kanebo, Limited

Nicca Chemical Co., Ltd.

Tradik Co., Ltd.

Zenji Hagiwara

Kunio Ichihashi

Satoshi Ando

Hozuma Okada

Hajime Saito

Junji Sano

Hirotomo Banko

Akira Dono

A sheet of an artificial leather substrate contains an upper-layer nonwoven fabric A () and a base nonwoven fabric B (). The upper-layer nonwoven fabric A () is a wet-laid nonwoven fabric having a density of 0.30 to 0.50 g/cmand being produced with synthetic fibers in which the component fibers have a fineness of 0.005 to 1.1 dtex, a fiber length of 3 to 10 mm and a weight per unit area of 20 to 150 g/m, and the base nonwoven fabric B () is a layer of a nonwoven fabric having a density of 0.15 g/cmor more and less than 0.28 g/cmand being produced with synthetic fibers in which the component fibers have a fineness greater than that of the component fibers of the upper-layer nonwoven fabric A and 4.5 dtex or less, a fiber length of 2 to 15 mm and a weight per unit area of 50 to 400 g/m. The upper-layer nonwoven fabric A () and the base nonwoven fabric B () are layered, made into a single body by entanglement of the component fibers of both layers and impregnated with an elastic polymer. Thus, artificial leather having a texture similar to natural leather and a substrate for use therein are provided at low cost.

Artificial leather, base to be used in the leather, and processes for production of both

Flame retardant compounds including at least one of a group of specified phosphoryl compounds which have a phenylene group in the molecule are applied to fiber materials composed of polyester-based synthetic fibers. Sufficiently long-lasting flame retardancy may be imparted to polyester-based synthetic fiber materials without the use of halogen compounds.

Flame retardants and flame retardant finishing method for

A polymer which contains amorphous aluminosilicate particles holding metal ions having a bactericidal action is physically stable and enables an ideal antibacterial or bactericidal action by the antibacterial metal ion in an excited state. The polymer is produced by mixing an organic polymer with said amorphous aluminosilicate solid particles before the polymer is molded. Alternatively, the polymer is produced by molding an organic polymer containing amorphous aluminosilicate solid particles, and treating the molded organic polymer with a solution of a water-soluble salt of a metal having a bactericidal action, thereby allowing the metal ions to be held on at least some of the amorphous aluminosilicate solid particles.

Polymer containing amorphous aluminosilicate particles and process for

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Osaka, Japan

Kunio Ichihashi