Denki Kagaku Kogyo Kabushiki Kaisha

Denka Company Limited

Masamichi Kanaoka

Akira Sakurai

Masashi Kume

Akira Moroi

Atsushi Takei

Atsushi Horihata

Takuya Akahane

A fiber for artificial hair, the fiber containing 50 parts by mass or more and 95 parts by mass or less of a vinyl chloride-based resin and 5 parts by mass or more and 50 parts by mass or less of a vinyl-based copolymer resin, in which the vinyl-based copolymer resin contains 60% by mass or more and less than 70% by mass of a styrene-based monomer unit and more than 30% by mass and 40% by mass or less of an acrylonitrile-based monomer unit on the basis of the entire vinyl-based copolymer resin.

Fiber for artificial hair and hair accessory product

A polyvinyl chloride-based fiber for artificial hair that has excellent low glossiness and grip performance when woven and can be stably spun. Configuring a fiber for artificial hair using a polyvinyl chloride-based resin composition, wherein the polyvinyl chloride-based resin includes, at predetermined blending amounts, a polyvinyl chloride-based resin (A) having a viscosity-average polymerization degree of 450-1,700 and a crosslinked vinyl chloride-based resin (B) in which the viscosity-average polymerization degree of a component that dissolves in tetrahydrofuran is 1,800-2,300, the difference between the viscosity-average polymerization degree of the polyvinyl chloride-based resin (A) and the viscosity-average polymerization degree of the THF-soluble component of the crosslinked vinyl chloride-based resin (B) is in a predetermined range, and the cross-sectional shape of the fiber for artificial hair has a first projection, a second projection, and a third projection and the lengths and widths thereof satisfy predetermined conditions.

Artificial hair fiber

Polyvinyl chloride fibers obtainable by molding a resin composition containing 100 parts by weight of a vinyl chloride resin, from 3 to 20 parts by weight of a compatible chlorinated vinyl chloride resin, from 10 to 30 parts by weight of a heat resistant chlorinated vinyl chloride resin, and from 0.1 to 10 parts by weight of a heat stabilizer into a fibrous form, the compatible chlorinated vinyl chloride resin having a chlorine content of from 57 to 64% by weight and an average degree of polymerization of from 450 to 800; and the heat resistant chlorinated vinyl chloride resin having a chlorine content of from 65 to 71% by weight and an average degree of polymerization of from 450 to 1,100, to a process of producing the same and to applications thereof.

Polyvinyl chloride fiber, process for producing the same, and use thereof

A polyvinyl chloride fiber which comprises a composition having 100 parts by weight of a vinyl chloride resin, from 3 to 20 parts by weight of a chlorinated vinyl chloride resin having a chlorine content of from 57.0 to 62.0% and an average polymerization degree of from 550 to 750, and from 5 to 50 parts by weight of a chlorinated vinyl chloride resin having a chlorine content of from 65.0 to 67.0% and an average polymerization degree of from 550 to 750.

Growing community of inventors

Kamakura, Japan

Masamichi Kanaoka