Process for producing glass roll with a separable protective sheet
First Claim
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1. A manufacturing method for a glass roll, the method comprising:
- forming a glass film by a downdraw method;
winding the glass film into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in said forming operation are exposed; and
during said winding operation, superposing the glass film on a separable protective sheet,wherein the protective sheet extends beyond both sides of the glass film in a width direction of the glass film, andwherein the protective sheet is wound one or more turns around the winding roller before said winding the glass film around the winding roller.
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Abstract
A manufacturing method for a glass roll includes forming a glass film by a downdraw method, winding the glass film into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in said forming operation are exposed, and during said winding operation, superposing the glass film on a separable protective sheet. The protective sheet extends beyond both sides in a width direction of the glass film. The method may further include winding the protective sheet on an outer peripheral surface of the glass film by winding only the protective sheet from a trailing end of the glass film in a winding direction of the glass film.
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Citations
15 Claims
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1. A manufacturing method for a glass roll, the method comprising:
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forming a glass film by a downdraw method; winding the glass film into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in said forming operation are exposed; and during said winding operation, superposing the glass film on a separable protective sheet, wherein the protective sheet extends beyond both sides of the glass film in a width direction of the glass film, and wherein the protective sheet is wound one or more turns around the winding roller before said winding the glass film around the winding roller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification