Nippon Electric Glass Co., Ltd.

Nitto-Denko Corporation

Hiroki Mori

Koichi Mori

Yoshinori Hasegawa

Kaoru Mitsugi

Michiharu Eta

Yohei Kirihata

Naohiro Ikai

Yasuo Teranishi

Riku Yamashiro

Hiroshi Naruse

Naotoshi Inayama

Takayuki Noda

Yoshiharu Miwa

Shuji Akiyama

Taisei Matsubushi

Akio Nakabayashi

Naoya Ishida

Takayoshi Saito

Hiromichi Umemura

Yasuhiro Uemura

Hiroshi Adachi

Kazuhito Hosokawa

Takeshi Murashige

Junichi Inagaki

Kota Nakai

Yoshio Umayahara

Toshihiro Kanno

Yasuhiro Matsumoto

Daisuke Nagata

Ryota Suzuki

Yoshikatsu Nishikawa

Koji Nishijima

Naoyuki Matsumoto

Koji Ishichi

Takuya Shioji

Toshitaka Nishijima

Masaya Fujisaki

Masaru Ikebe

In a method of manufacturing a glass film, in a cutting step, a crack (CR) formed in a non-product portion (Gc, Gc) along a longitudinal direction of a glass film (G) is guided by a guiding member (a,b) so as to propagate to an outer end portion (Gd) of the non-product portion (Gc, Gc) in a width direction.

Method for producing glass film

Provided is a method of manufacturing a glass roll (GR), including: a conveying step of conveying a band-shaped glass film (G) in a lateral conveying direction by a conveying device (); and a roll-up step of rolling up the glass film (G) into a roll shape. The conveying step includes an inspection step of measuring a state of each of end portions (Gd, Ge) in a width direction of the glass film (G) by a detection unit () under a state in which a tension is applied to the glass film (G) that passes through an intermediate conveying region (MS) of the conveying device () by a tension applying portion.

Production method for glass roll

Provided is a method comprises: continuously forming an elongated, glass film having marginal portions from molten glass into a given shape having two marginal portions, in width-directional opposite edge regions thereof, wherein the glass film having marginal portions has the marginal portions, and an effective portion formed in a width-directional central region of the glass film having marginal portions; annealing the glass film having marginal portions; continuously forming resin tapes on the glass film having marginal portions at positions adjacent to and away by a given distance from the respective marginal portions, to extend in a length direction of the glass film having marginal portions; and continuously removing each of the marginal portions from the glass film having marginal portions, along a position between the marginal portion and a corresponding one of the resin tapes, or at a given width-directional position within the corresponding resin tape.

Manufacturing method for glass film with resin tape, and manufacturing method for glass film

A glass roll of band-shaped glass film is free of skew and single slack when a roll-to-roll mode is used. The band-shaped glass film is wound into a roll shape and has creases formed thereon. The band-shaped glass film includes an effective section with two side edges in a width direction extending parallel to each other, and leading and trailing end portions extending parallel to the width direction. When a length from the leading end portion to the trailing end portion along a surface of the effective section is measured along each of a first position along one side edge and a second position along another side edge, a difference between the first and second measurement lengths is 400 ppm or less of a longer measurement length of the first and second measurement lengths.

Glass roll, glass roll manufacturing method, and quality evaluation method

A production method for a glass roll includes a start preparation step (S) of feeding-out a first lead film (LF) coupled to a starting end portion (GFa) of a first glass film (GF) from an unwinding device () and allowing a winding device () to wind the first lead film (LFafter passing of the first lead film (LF) through a thermal film-forming device (),). The start preparation step (S) includes a temperature increasing step of causing the thermal film-forming device () to be increased in temperature to a film-forming temperature. The first glass film (GF) reaches the thermal film-forming device () before the thermal film-forming device () is increased in temperature to the film-forming temperature.

Glass roll production method

A method of manufacturing a glass film includes a forming step of forming a band-shaped glass film by pulling down a glass ribbon flowing down from a forming trough while sandwiching the glass ribbon from both front and back sides through use of roller pairs and a conveyance direction changing step of changing a conveyance direction of the glass film from the vertical direction to the horizontal direction by conveying the glass film along a conveyance path having an arc shape while supporting the glass film from a back surface side with a roller conveyor so that a front surface of the glass film after having passed through the conveyance path faces upward. A first roller to be brought into abutment against the glass film from the front surface side is arranged between a roller pair arranged in a lowermost stage and the roller conveyor.

In a manufacturing method of a glass roll, a transport device transports a glass film coupled to lead films via coupling portions. The transport device separates the lead films and/or the coupling portions from a heating roller when the lead films and/or the coupling portions pass by the heating roller.

Manufacturing method and manufacturing device of glass roll

A glass roll () includes a laminate film () taken up into a roll shape, the laminate film including a glass film (), a protective film (), and an adhesive layer (), which is arranged between the glass film () and the protective film (), and is configured to bond the glass film () to the protective film (). A width (A) of the protective film () is larger than a width (B) of the glass film (), and both end portions () of the protective film () in a width direction each protrude with respect to the glass film (). The width (B) of the glass film () is larger than a width (C) of the adhesive layer (), and both end portions () of the glass film () in the width direction each protrude with respect to the adhesive layer ().

Glass roll

Provided is a method of producing a glass roll including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus () while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes a step of winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (), and leading the wound thread-like peeled material (Ge) in a predetermined conveying direction (PX) by a leading device ().

Method for manufacturing glass roll

Provided is a method of manufacturing a glass film, including: a conveying step of conveying an elongated glass film (G) along a longitudinal direction thereof; and a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus () while conveying the glass film (G) through the conveying step, to thereby separate the glass film (G). The cutting step includes generating a thread-like peeled material (Ge) in a helical shape from an end portion of the separated glass film (G) in a width direction. The thread-like peeled material (Ge) has a width (W) of 180 &#x3bc;m or more and 300 &#x3bc;m or less. In addition, the thread-like peeled material (Ge) has a helical diameter (D) of 80 mm or more and 200 mm or less.

A method of manufacturing a glass includes a conveying step of moving a conveyance sheet material that contacts a lower surface of a glass film, to thereby convey the glass film. The conveyance sheet material includes a first contact portion that contacts the lower surface of the glass film on an upstream side in a manufacture-related process step, a second contact portion that contacts the lower surface of the glass film on a downstream side in the manufacture-related process step, and a non-contact portion that is prevented from contacting the lower surface of the glass film. In this method, the manufacture-related process step includes subjecting the glass film to a predetermined process at a position corresponding to the non-contact portion between the first and second contact portions while simultaneously moving the first, second, and non-contact portions of the conveyance sheet material through the conveying step.

Glass film production method

A manufacturing method for a glass roll includes cutting a glass ribbon along a longitudinal direction thereof in a cutting region on a conveyance path while conveying the glass ribbon, and taking up the cut glass ribbon around a roll core at a downstream end of the conveyance path. A conveyance-mode changeable region is provided between the cutting region and the downstream end of the conveyance path. The conveyance-mode changeable region enables a change in conveyance mode between a first mode of conveying the glass ribbon in a tensioned state and a second mode of conveying the glass ribbon in a loosened state. After the leading end portion of the glass ribbon is wound around the roll core in the first conveyance mode, the conveyance mode is shifted from the first conveyance mode to the second conveyance mode.

A manufacturing method for a band-shaped glass film (GF) includes use of: a plurality of rollers () configured to change a direction of the falling band-shaped glass film (GF) to a horizontal direction; and a first horizontal-conveyance unit () configured to convey the band-shaped glass film (GF) in the horizontal direction after the changing of the direction of the band-shaped glass film (GF). After a lower end of the band-shaped glass film (GF) passes through a position between the plurality of rollers () being at a retreated position (P) and the first horizontal-conveyance unit (), the plurality of rollers () are moved from the retreated position (P) to a regular position (P) to apply a pressing force to the band-shaped glass film (GF), to thereby cut the band-shaped glass film (GF) along a width direction by bend-breaking.

Method and device for producing band-shaped glass film

Provided is method of producing a glass roll, the method including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus () while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (), to thereby collect the thread-like peeled material (Ge).

Provided is a laminate () obtained by integrally laminating glass sheets () on both surfaces of a resin sheet (). The glass sheets () have a thickness of 300 &#x3bc;m or less and end surfaces () of the glass sheets () are chamfered.

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Shiga, Japan

Hiroki Mori