Nippon Electric Glass Co., Ltd.

Hiromichi Umemura

Michiharu Eta

Hiroki Mori

Koichi Mori

Kaoru Mitsugi

Yoshinori Hasegawa

Yasuo Teranishi

A method of manufacturing a glass roll, includes: a forming step (S) of forming, while conveying a glass film, the glass film by a downdraw method; a temporary rolling step (S) of rolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying in the forming step (S), to thereby manufacture a source glass roll; and a main rolling step (S) of unrolling, while conveying the glass film to a downstream side, the glass film from the source glass roll, and then rerolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying, to thereby manufacture a glass roll. Higher tension in a rolling direction is applied to the glass film in the main rolling step (S) than in the temporary rolling step (S).

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Shiga, Japan

Hiromichi Umemura