Toray Industries, Inc.

Koichi Saito

Masaki Ishii

Hidenobu Honda

Yoshikazu Kosaka

Naoaki Ito

Hirotoshi Goto

Hiroe Yokoi

Tatsuku Kojima

This application relates to a fibre structure which has, on the fibre surface, a complex oxide comprising titanium and silicon, plus a binder. In particular, it relates to a fibre structure which preferably has, on the fibre structure, a complex oxide comprising titanium and silicon, and at least one type of binder selected from alkyl silicate resins, other silicone resins and fluororesins, and it provides a fibre structure having durable deodorant properties, antibacterial properties, antifungal properties or antisoiling properties.

Fiber structure having deodorizing or antibacterial property

The invention relates to a molded antimicrobial article including an infiltrated antimicrobial agent which forms independent phases of 0.01 &mgr;m or more in short diameter in the molded article. The antimicrobial agent is a pyridine based antimicrobial agent with a molecular weight of 200 to 700 and an inorganic property/organic property value of 0.3 to 1, and 50% or more of the antimicrobial agent is infiltrated in a depth range of 0.5 &mgr;m or more from the surface of the molded article, or that 30% or more of the antimicrobial agent is infiltrated in a depth range of 2 &mgr;m or more from the surface of the molded article. The molded antimicrobial article of the invention can be obtained by immersing a fibrous product in a dyeing liquid containing the pyridine based antimicrobial agent, and treating simultaneously with dye under pressurization, or by applying a liquid containing a pyridine based antimicrobial agent to a fibrous product by padding or spraying, and heat-treating it at 160 to 200&deg; C. in a dry or wet state.

Molded antimicrobial article and a production process thereof

The present invention discloses a method of modifying a synthetic or natural polyamide product. A graft polymerization is carried out on the polyamide product in a solution containing 5 to 60 mole % of acrylic acid and 95 to 40 mole % of methacrylic acid as the monomer by means of a redox catalyst.

Method of modifying synthetic or natural polyamide products

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Shiga, Japan

Koichi Saito