US 11,999,133 B2
Manufacturing method for glass film with resin tape, and manufacturing method for glass film
Takeshi Murashige, Ibaraki (JP); Junichi Inagaki, Ibaraki (JP); Kazuhito Hosokawa, Ibaraki (JP); Kota Nakai, Ibaraki (JP); Toshihiro Kanno, Ibaraki (JP); Yoshinori Hasegawa, Otsu (JP); Kaoru Mitsugi, Otsu (JP); Naohiro Ikai, Otsu (JP); Hiroki Mori, Otsu (JP); and Yohei Kirihata, Otsu (JP)
Assigned to NITTO DENKO CORPORATION, Ibaraki (JP); and Nippon Electric Glass Co., Ltd., Otsu (JP)
Filed by NITTO DENKO CORPORATION, Ibaraki (JP); and Nippon Electric Glass Co., Ltd., Otsu (JP)
Filed on Sep. 23, 2022, as Appl. No. 17/951,955.
Application 17/951,955 is a division of application No. 16/345,211, previously published as PCT/JP2017/037547, filed on Oct. 17, 2017.
Claims priority of application No. 2016-209753 (JP), filed on Oct. 26, 2016.
Prior Publication US 2023/0033067 A1, Feb. 2, 2023
Int. Cl. B32B 17/10 (2006.01); B29C 65/48 (2006.01); B65D 57/00 (2006.01); B65D 85/672 (2006.01); B65H 39/16 (2006.01); C03B 17/06 (2006.01); C03B 25/04 (2006.01); C03B 33/02 (2006.01); C03C 17/32 (2006.01)
CPC B32B 17/10 (2013.01) [B29C 65/48 (2013.01); B32B 17/10018 (2013.01); B32B 17/10366 (2013.01); B65D 57/004 (2020.05); B65D 85/672 (2013.01); B65H 39/16 (2013.01); C03B 17/06 (2013.01); C03B 25/04 (2013.01); C03B 33/02 (2013.01); C03C 17/32 (2013.01); B32B 2329/00 (2013.01); B32B 2367/00 (2013.01); B32B 2369/00 (2013.01); B65H 2701/17 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A manufacturing method of glass film with resin tape comprising:
a forming step of continuously forming an elongated glass film having marginal portions in width-directional opposite edge regions thereof from molten glass, wherein an effective portion is formed in a width-directional central region of the glass film between the marginal portions;
an annealing step of annealing the glass film;
a resin tape forming step of continuously forming resin tapes on the glass film in a length direction of the glass film, each of the resin tapes being formed at a position adjacent to a respective one of the marginal portions and separated from the respective marginal portions by a given distance from the respective marginal portions with at least a portion of the effective portion between the resin tapes being free from being covered by the resin tapes, wherein the resin tape forming step comprises a resin tape attaching step of attaching the resin tapes to a surface of the glass film while continuously feeding the resin tapes from a corresponding resin tape roll, and the resin tape attaching step includes applying an adhesive to an interface between each of the resin tapes and the glass film;
a marginal portion removal step of continuously removing each of the marginal portions from the glass film by cutting the glass film at a position between each marginal portion and a corresponding one of the resin tapes to form the glass film with resin tape; and
applying a protective sheet to the glass film between the resin tapes, the protective sheet having a thickness greater than a total thickness of the resin tapes and the adhesive.