Glass roll and method for manufacturing same

A glass roll and glass film technology, applied in glass manufacturing equipment, manufacturing tools, glass molding, etc., can solve the problem of glass film damage, and achieve the effect of inhibiting damage and avoiding damage

Active Publication Date: 2012-11-07
NIPPON ELECTRIC GLASS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, for example figure 2 As shown, thinning is carried out until the glass plate becomes a film with a thickness of 200 μm or less to form a so-called glass film 10, and the glass film is wound on a core 12 provided with a support rod 11 to manufacture a glass roll 15, an

Method used

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  • Glass roll and method for manufacturing same
  • Glass roll and method for manufacturing same
  • Glass roll and method for manufacturing same

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Embodiment Construction

[0034] Hereinafter, preferred embodiment of the glass roll of this invention is demonstrated.

[0035]The glass film used in the present invention has a thickness of 0.5 to 300 μm. A glass film having such a thickness can be obtained by pulling glass downward by a down-draw method to continuously form it into a film. When the thickness of the glass film is less than 0.5 μm, it is easy to break, and when the thickness of the glass film is more than 300 μm, the flexibility is insufficient, and it is difficult to be wound into a roll. The thickness of the glass film is 5 to 200 μm, preferably 5 to 100 μm, more preferably 5 to 50 μm.

[0036] The density of the glass film is less than 2.45g / cm 3 . Therefore, weight reduction can be achieved, even if a glass film with a length of 50 m or more is wound, a support rod is installed on the central axis of the glass roll, and the outer surface of the glass roll is kept in a state where it is not in contact with the mounting surface. ...

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Abstract

Disclosed is a method for manufacturing a glass roll by taking up a long glass film having a thickness of 0.5-300 [mu]m, whereby breakage of the glass film positioned at the inner layer portion of the glass roll is suppressed. The glass roll (15) is manufactured by taking up the glass film (10) into a roll, said glass film having a thickness of 0.5-300 [mu]m, and a density less than 2.45g/cm<3>.

Description

technical field [0001] The present invention relates to a glass roll for winding a glass film used in glass substrates of flat panel displays such as liquid crystal displays and organic EL displays, solar cells, lithium ion batteries, electronic signboards, touch panels, and electronic paper. , and organic EL lighting and other equipment used in glass, pharmaceutical packaging, glass-resin laminates, etc. Background technique [0002] In recent years, flat panel displays such as liquid crystal displays, plasma displays, organic EL displays, and field emission displays have become popular in place of CRT displays from the viewpoint of space saving. Further thinning is required for these flat panel displays. In particular, organic EL displays are required to be easily transported by folding or winding, and to be able to be used not only on flat surfaces but also on curved surfaces. Moreover, the requirement that it can be used not only for flat surfaces but also for curved s...

Claims

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Application Information

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IPC IPC(8): C03C3/091B65D85/48B65D85/672C03B17/06
CPCB65H2801/61G02F1/133305C03C3/091C03C3/093B65H2301/414324B32B17/10Y10T428/131
Inventor 谷口胜广木村高广梅村博通
Owner NIPPON ELECTRIC GLASS CO LTD
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