Kanebo, Limited

Other

Kanebo Synthetic Fibers Ltd.

Shimadzu Corporation

Toyota Jidosha Kabushiki Kaisha

Yoshikazu Kondo

Eiichi Ozeki

Masao Matsui

Toshihiro Yamamoto

Hiroshi Kajiyama

Takaji Yamamoto

Atsushi Yamamoto

Shunya Ida

Hideo Yoshidome

Yasuhiro Fujii

Takuji Osaki

Yukio Tsuda

A spontaneously degradable fiber excellent in bulkiness, softness, stretchability and feeling, which comprises (A) a low heat-shrinkable fiber component comprising a high crystalline aliphatic polyester and (B) a high heat-shrinkable fiber component comprising an aliphatic polyester, e.g., a low crystalline or non-crystalline aliphatic polyester, and a block copolymer or a mixture the main component of which is an aliphatic polyester and which comprises a high-melting component and a low-melting component. Further, fibers excellent in self-crimpability or self-adhesion property and dividable fibers are obtained by suitably combining the fiber components (A) and (B) to form conjugated fibers or composite yarns.

Spontaneously degradable fibers and goods made thereof

Biodegradable copolyester, molded article produced therefrom and process

Deep-colored fibrous articles, such as fabrics colored in a deep black shade, having on it surfaces a film coating of a resin mixture comprising at least two resins that are mutually miscible but incompatible and in phase-separated conditions. Color-deepening effect is augmented by forming pits and/or recesses and projections on the surfaces of the film coating by using resins different in solvent-solubility and eluting the resin having a larger solubility with a solvent. The above effect is further augmented by using resins different in plasma etching resistance and subjecting the formed film coating to a low-temperature plasma etching treatment. The plasma etching is effectively conducted by placing the fibrous article within a plasma sheath, preferably contacting with an antenna electrode. The deep color can be made abrasion resistant by further depositing an abrasion resistant resinous film on the pit-formed resinous film coating without filling up the pits.

Deep-colored fibers and a process for manufacturing the same

An apparatus for plasma treatment of long continuous materials, typically sheet materials, which comprises a plasma treatment chamber, an electric power introducing member positioned in the central portion of the chamber, a plurality of antenna electrodes radially extending from the vicinity of the electric power introducing member, a plurality of grounded electrodes facing a treating surface of the antenna electrodes, the electric power introducing member being connected with the respective ends of the antenna electrodes closest thereto, and a guide means, i.e., guide rolls, for passing treating materials through gaps between the antenna and grounded electrodes. The antenna electrodes preferably have curved surfaces bulging out with respect to the direction of travel of the treating materials.

Apparatus for plasma treatment

Porous acrylic synthetic fibers having water absorption property and having substantially no microvoids but having mainly macrovoids are produced by spinning an organic solvent solution containing 15.about.35% by weight of a polymer consisting of 2.about.30 parts by weight of cellulose acetate and 70.about.98 parts by weight of an acrylic polymer into a coagulation bath at a temperature of no higher than 30.degree. C., primarily drawing the spun fibers at a draw ratio of 2.5.about.8.0 times to form water swelled fibers wherein macrovoids are distributed, drying the water swelled fibers at a temperature of 100.degree..about.180.degree. C. to a water content of no greater than 1.0% by weight and secondarily drawing the dried fibers under wet heat to elongate the macrovoid structure. This invention includes acrylic composite fibers having water absorption property wherein at least one of components A and B consisting of 2.about.50% by weight of cellulose acetate and 50.about.98% by weight of an acrylic polymer and another component B consisting of an acrylic polymer are bonded in a conjugate ratio of 2/8.about.8/2 (by weight) along the fiber axial direction, one component A has substantially no microvoid but has mainly macrovoids, and the method for producing said acrylic composite fibers.

Porous bicomponent acrylic synthetic fibers comprising cellulose acetate

Porous acrylic synthetic fibers having water absorption property and having substantially no microvoids but having mainly macrovoids are produced by spinning an organic solvent solution containing 15.about.35% by weight of a polymer consisting of 2.about.30 parts by weight of cellulose acetate and 70.about.98 parts by weight of an acrylic polymer into a coagulation bath at a temperature of no higher than 30.degree. C., primarily drawing the spun fibers at a draw ratio of 2.5.about.8.0 times to form water swelled fibers wherein macrovoids are distributed, drying the water swelled fibers at a temperature of 100.about.180.degree. C. to a water content of no greater than 1.0% by weight and secondarily drawing the dried fibers under wet heat to elongate the macrovoid structure. This invention includes acrylic composite fibers having water absorption property wherein at least one of components A and B consisting of 2.about.50% by weight of cellulose acetate and 50.about.98% by weight of an acrylic polymer and another component B consisting of an acrylic polymer are bonded in a conjugate ratio of 2/8.about.8/2 (by weight) along the fiber axial direction, one component A has substantially no microvoid but has mainly macrovoids, and the method for producing said acrylic composite fibers.

Porous acrylic synthetic fibers comprising cellulose acetate in an

Porous acrylic synthetic fibers having water absorption property and having substantially no microvoids but having mainly macrovoids are produced by spinning an organic solvent solution containing 15.about.35% by weight of a polymer consisting of 2.about.30 parts by weight of cellulose acetate and 70.about.98 parts by weight of an acrylic polymer into a coagulation bath at a temperature of no higher than 30.degree. C., primarily drawing the spun fibers at a draw ratio of 2.5.about.8.0 times to form water swelled fibers wherein macrovoids are distributed, drying the water swelled fibers at a temperature of 100.about.180.degree. C. to a water content of no greater than 1.0% by weight and secondarily drawing the dried fibers under wet heat to elongate the macrovoid structure. This invention includes acrylic composite fibers having the water absorption property, wherein at least one of components A and B consisting of 2.about.50% by weight of cellulose acetate and 50.about.98% by weight of an acrylic polymer and another component B consisting of an acrylic polymer are bonded in a conjugate ratio of 2/8.about.8/2 (by weight) along the fiber axial direction, one component A having substantially no microvoids but having mainly macrovoids, and a method for producing said acrylic composite fibers.

Porous flame retarded acrylic synthetic fibers consisting of cellulose acetate and a modacrylic copolymer containing vinyl chloride and/or vinylidene chloride are produced by spinning an organic solvent solution of a polymer consisting of cellulose acetate and the above described modacrylic copolymer into a coagulation bath, primarily drawing the spun fibers at a draw ratio of 2.5.about.8.0, drying the water swelled fibers at 100.degree..about.180.degree. C. to a water content of no greater than 1.0% by weight and secondarily drawing the dried fibers under wet heat at a draw ratio of no greater than 3 times.

Growing community of inventors

Hofu, Japan

Yoshikazu Kondo