Teijin Limited

Other

Nissan Motor Company Limited

Tanaka Kikinzoku Kogyo K.k.

Gunze Limited

Toshimasa Kuroda

Hiroshi Tabata

Susumu Shimizu

Kinya Kumazawa

Akio Sakihara

Makoto Asano

Shinji Owaki

Mie Yoshimura

Seiji Ishii

Shiro Kumakawa

Tatsuya Shibata

Mitsuo Matsumoto

Ryoji Tsukamoto

Toshihiro Santa

Shoji Makino

Yoshimi Tanaka

Hirosuke Watanabe

Koichi Iohara

Takashige Oka

Terukuni Ikuta

Koh-ichi Iohara

Yoshihiko Maezawa

Mitsuo Hosoi

Kouichi Yamada

Nobutaka Kiyohara

Akihiro Sato

An adhesive-treated polyester fiber cord having a high adhesion to non-vulcanized rubber, a high resistance to separation of fibers or filaments from each other, and being useful as a reinforcing cord for producing a rubber composite material such as belt having high dimensional stability and power transmission property, is produced by first impregnating a material cord a first adhesive liquid containing a polyepoxide compound and a blocked polyisocyanate compound in solid weight ratio of 1/3-1/15, by heat treating it at 160-240&deg; C., by second treating the treated cord with a second adhesive liquid containing a resorcinol-formaldehyde resin and a rubber latex in a solid weight ratio of 1/3-1/15, by heat treating it at 180-240&deg; C., by third treating the treated cord with a third adhesive liquid containing a resorcinol formaldehyde resin (resorcinol/formaldehyde molar ratio: 1/0.6-1/1.0) and a rubber component (including natural rubber in a content of at least 15% by weight and optionally vinyl pyridine-styrene-butadiene copolymer rubber) in a weight ratio of 1/10-1/20 and by heat treating at 140-170&deg; C.

Process for producing an adhesive-treated polyester fiber cord

A flat optical-interference-functional fiber formed by alternately laminating individually independent layers of polymers having different refractive indices in parallel with the major axis direction of its flat cross section, characterized in that (a) the ratio (SP ratio) of the solubility parameter value (SP ) of high refractive index polymer to the solubility parameter value (SP ) of low refractive index polymer is in the range of 0.8&lE;SP /SP &lE;1.1, and a fibrous structure using the fiber. According to the present invention, there are provided a fiber which has high color development intensity based on optical interference and forms clear color; and a fibrous structure thereof.

Fiber having optical interference function and use thereof

A color-developing composite short fiber having a length of 0.01 to 100 mm is obtained by cutting a color-developing short fiber capable of reflecting visible rays and interfering with visible rays consisting of two or more kinds or polymer compounds having different refractive indices which are laminated alternately. A color-developing structure is formed by binding particles of the short fiber to one another, dispersing the short fiber in a mixture with other materials or adhering the short fiber on the surface of a support. Further, a color-developing composite short fiber having a length of 0.01 to 100 mm is obtained by cutting a color-developing composite fiber comprising two or more polymer compounds having different refractive indices which are laminated alternately forming a layer capable of reflecting visible rays and interfering therewith and a layer capable of reflecting invisible rays and interfering therewith.

Color-developing composite short fibers and color-developing structures employing the same

A fiber structure with a cross section having x-axis and y-axis directions includes an alternate lamination including a first portion having a refractive index na and a thickness da and a second portion adjacent to the first portion and having a refractive index nb and a thickness db, wherein when 1.0&lE;na<1.8, 1.3&lE;nb&lE;1.8, and 1.01&lE;nb/na&lE;1.80, a primary peak wavelength &lgr;1 which is equal to 2(nada&plus;nbdb) is given by &lgr;1&gE;0.78 or 1.6 (&mgr;m).

Fiber structure, cloths using same, and textile goods

A fiber structure includes alternate lamination including a predetermined number of a first portion having a refractive index na and a thickness da, and a second portion adjacent to the first portion and having a refractive index nb and a thickness db, wherein when the refractive index na is given by 1.3&lE;na, and a ratio nb/na is given by 1.01&lE;nb/na&lE;1.20, a reflection peak wavelength &lgr; is equal to 2(nada&plus;nbdb). Such fiber structure is used in a textile.

Fiber structure and textile using same

A fiber with a cross section having x-axis and y-axis directions includes an alternate lamination including a predetermined number of a first portion and a second portion adjacent thereto, which have different optical characteristics, and a clad arranged around the alternate lamination.

Fibers with optical function

Polyethylene naphthalate fiber

Polyester filament yarn

A composite polymer fiber is produced employing at least two polymer compounds according to a process for producing a composite polymer fiber including the steps of supplying at least two polymer compounds; forming a belt flow by arranging alternately unmixed strips of the polymer compounds supplied; and injecting the belt flow after it is compressed such that the thickness of the belt flow may be longer than the width thereof and that multiple layers of the polymer compounds may be parallel to the longer axis of the fiber. According to this process, there is obtained a fiber having a multilayered structure, in which the thickness of each layer can be controlled with optical accuracy since the multilayered structure is formed in one step, and also having a rectangular cross section in which each layer in the fabric is oriented parallel to the longer axis of the fiber, so that the layers can be easily oriented, when woven into a fabric, in such a direction as to obtain high-intensity coherent beams of light.

Spinneret for producing composite polymer fibers

A spinning dope for the stable production of a cellulose diacetate fiber at a high productivity rate, such fiber being almost free from the occurrence of fluffs and excellent in strength and elongation properties. The spinning dope is a composition formed of (1) acetone or a solvent containing acetone and 0 to 5% by weight, based on the acetone, of water or methanol, (2) 24 to 33% by weight, based on the total weight of the composition, of cellulose diacetate, and (3) at least a phthalate ester, an aliphatic dibasic acid ester, a fatty acid ester, a phosphate ester, an epoxy plasticizer or a glycol-ester-containing plasticizer; and the composition has a thixotropy index (I), represented by the following equation, of at least 1.3,

Cellulose diacetate spinning dope and a process for producing a

Polyester filament yarn and process for producing same, and fabric

Reinforcement sheet

A method for producing a textured polyester yarn, especially in an in-draw texturing system, in which starting yarn is processed by means of a non-touch type heater under a heater temperature in a range of from 350.degree. C. to 800.degree. C. and a shorter processing time in a range of from 0.04 second to 0.12 second. The dyeing evenness of the fabric made from the resultant yarn is improved because the dyeability of the yarn is almost constant despite fluctuation of the heater temperature. A belt-type twister is preferably utilized for false-twisting a yarn rather than a disc type.

Method for producing textured yarn

Polyester conjugate crimped yarns prepared by conjugate spinning

Polyester conjugate crimped yarns

A conjugate filamentary yarn, which is prepared from composite components respectively comprising thermoplastic elastomer and non-elastomeric polyamide or polyester, and each of the individual constituents has a cross section of a compressed flat shape like a cocoon or oval, is provided. Hereby, a highly stretchable crimped elastic yarn, in which stretchability arising from crimp and rubber-like elasticity resulting from elastomer are utilized to the utmost, is made available with economy.

Crimpable conjugate filamentary yarns having a flattened cross-sectional

Growing community of inventors

Osaka, Japan

Toshimasa Kuroda