Konica Corporation

Ykk Corporation

Konica Minolta Opto, Inc.

Konica-minolta Holdings, Inc.

Isamu Michihata

Yui Hashimoto

Kunio Shimizu

Koichi Nagayasu

Noriki Tachibana

Yoshiyuki Fukuhara

Masahito Takada

Hiroyuki Yamashita

Toru Kobayashi

Yoshinori Kojima

Takahiro Fuse

Noriyasu Kuzuhara

Minori Tamagawa

Makoto Takekawa

Koichi Saito

Masaji Nara

Hayuru Tanaka

Yui Miyawaki

Hiroko Yokouchi

Kouichi Saito

Yasuo Kurachi

Hiroki Umeda

Kazuaki Nakamura

Akihiko Takeda

Koji Tasaka

Osamu Ishige

Kaori Ono

Takahiro Takagi

Katsuyuki Takeda

Nobuyuki Sekiguchi

Hideki Murata

Satomi Kawabe

Kazuto Kiyohara

Shinji Inagaki

Ichiro Kudo

Naoko Morita

Sayaka Nakamura

Chie Kanbe

Syozo Kikugawa

Hirokazu Kameyama

Toshiyuki Asami

In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.

Molding apparatus

Provided is a molding apparatus used for manufacturing a molded surface fastener wherein a die wheel driving rotationally has a concentric double cylinder structure provided with an outer side cylindrical body that has provided therethrough a plurality of penetrating holes, and an inner side cylindrical body that has formed, in the outer peripheral surface thereof, a plurality of grooved portions, the grooved portions located in the inner side cylindrical body include a use grooved portion that intersects with the penetrating hole of the outer side cylindrical body and a non-use grooved portion that is covered by the inner peripheral surface of the outer side cylindrical body. By using this molding apparatus obtained is a molded surface fastener in which a plurality of types of engaging elements having different shapes in a plan view are arranged cyclically in a reference direction.

Molding apparatus and manufacturing method for molded surface fastener

Provided is a molded surface fastener having an improved balance between durability against repeated attachment and detachment operations and peeling strength. A molded surface fastener made of a thermoplastic resin, includes: a flat plate-shaped base portion; and a plurality of engaging elements protruding from one main surface of the base portion. Each engaging element includes: a stem upstanding from the main surface; and an engaging head portion formed at an upper end portion of the stem, the head portion including a projection portion extending mainly in a direction perpendicular to a molding direction as viewed in a planar view.

Molded surface fastener and method for manufacturing same

Molded surface fastener

Molded surface fastener manufacturing method

A waterproof fastener chain includes: a pair of fastener tapes made of polyester resin adjacent to each other at a given space between each side edge thereof, rows of elements respectively attached onto a main surface of the side edge of each of the fastener tapes, and waterproof coated films made of polyester resin respectively formed on a main surface of each of the fastener tapes. An outer surface of each of the waterproof coated films is flat at least at a position where a slider is to pass over, each of the waterproof coated films penetrates into irregularities on the main surface of each of the fastener tapes, a penetration depth of the waterproof coated films into a gap caused by the space of the pair of fastener tapes is not more than thickness of the fastener tapes.

Method for manufacturing slide fastener chain

There is provided a side fastener chain. A plurality of elements are fixed on each of opposing edge portions of a pair of fastener tapes at a predetermined pitch. The elements include a base portion and a head portion. A ratio (Rt) of the sum dimension of a first partial thickness, which is measured from an upper surface of each element to an upper surfaces-side apex of the respective edge portion, and a second partial thickness, which is measured from a lower surface of the element to a lower surface-side apex of the edge portion, to a thickness of the element satisfies the following equation: 40%&#x2264;Rt. A ratio (Rtl) of the thickness of the element to the entire length of the element satisfies the following equation: 0&#x3c;Rtl&#x3c;60%.

Slide fastener chain and slide fastener

Elements are made of a polyacetal resin, which can effectively improve the chain crosswise strength while maintaining wear resistance. Provided is a fastener element made of a polyacetal resin composition containing 5 to 30% by mass of reinforcing fibers each having an average fiber diameter of 5 to 15 &#x3bc;m and a numeric average fiber length of 150 to 500 &#x3bc;m.

Fastener element and method for producing same

[Problem] To provide a slide fastener chain and a slide fastener, which have a small curvature radius and which have flexibility enabling the slide fastener chain and the slide fastener to be smoothly bent. [Solution] A slide fastener chain () comprises: a pair of fastener tapes (); and elements () affixed to the facing edges () of the fastener tapes () at a predetermined pitch. The slide fastener chain () is characterized in that: the elements () each have bases () affixed to a fastener tape () and each have heads () protruding from the bases () and engaging with facing elements (); and the thickness (t) and pitch (p) of the elements () satisfy the following expressions (1) and (2).

Disclosed is a method for producing a cellulose ester film wherein a film-forming material containing the following components A-C is heated and melted, and a cellulose ester film is formed therefrom by melt-casting. A: a cellulose resin, B: an ester compound obtained by condensing an organic acid represented by Formula (1) and a polyalcohol, and C: an aliphatic polyester or an aliphatic-aromatic copolymer. 

Method of producing cellulose ester film, cellulose ester film, polarizing plate and liquid crystal display

A stretched cellulose ester film produced by stretching after film forming employing a cellulose ester including a polyester polyol obtained from (a) a glycol having an average carbon atom number of 2 to 3.5 and (b) a dibasic or an anhydrous dibasic acid having an average carbon number of 4 to 5.5, wherein the stretched cellulose ester film exhibits retardation value Ro in the range of 30 to 200 nm, and a retardation value Rt in the range of 70 to 400 nm, Ro and Rt are each defined by specific Formulas (1) and (2).

Stretched cellulose ester film, polarizing plate and liquid crystal display employing the same

A cellulose ester film comprising a compound represented by Formula (1): Formula (1) B-(G-A)n-G-B, wherein B represents a benzene monocarboxylic acid residue; G represents an alkylene glycol residue having 2-12 carbon atoms, an aryl glycol residue having 6-12 carbon atoms, or an oxyalkylene glycol residue having 4-12 carbon atoms; A represents an alkylene dicarboxylic acid residue having 4-12 carbon atoms or an aryldicarboxylic acid residue having 6-12 carbon atoms; and n represents an integer of 1 or more.

Cellulose ester film, polarizing plate and liquid crystal display

A retardation film which contains a cellulose derivative and a plasticizer wherein the thickness of the film is 10 to 50 &#x3bc;m, Ro in Equation (i) is in the range of 30 to 100 nm, Rt in Equation (ii) is in the range of 100 to 300 nm, and S in Equation (iii) is 0.0002 or more but not exceeding 0.030.=()&#xd7;&#x2003;&#x2003;Equation (i)&#x2003;&#x2003;Equation (ii)=(()/2)&#x2003;&#x2003;Equation (iii)(where 'nx' is a maximum refraction index of the film surface, 'ny' is a refraction index in the direction perpendicular to &#x201c;nx,&#x201d; &#x201c;nz&#x201d; is a refraction index along the thickness of the film, and &#x201c;d&#x201d; is the thickness of the film.)

Retardation film, polarizing plate, and liquid crystal display device

Disclosed is a cellulose ester film containing cellulose ester and microparticles having an average primary particle diameter of from 0.1 to 1.0 &#x3bc;m, wherein a relative standard deviation of a primary particle diameter of the microparticles is from 1 to 20%, and wherein the cellulose ester film has a surface with a peak density of from 1,000 to 8,000 (1/mm).

Cellulose ester film and its manufacturing method, optical film, polarizing plate and liquid crystal display

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Toyama, Japan

Isamu Michihata