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Patent Searching and Data


Title:
PAPER CUP
Document Type and Number:
Japanese Patent JP2003146322
Kind Code:
A
Abstract:

To provide a paper cup in which a crack or the like is prevented from being generated at a vapor deposited film of non-organic oxide such as silicon oxide, aluminum oxide or the like constituting a transparent barrier film acting as a barrier raw material, occurrence of pin-holes or the like is completely eliminated, a superior barrier property for preventing oxygen gas and water vapor of the like from being passed through the paper cup is attained, a defective sealing and a liquid leakage or the like are prohibited when the pin-holes are generated, deterioration of the stored contents is prohibited, and it has a superior keeping property and storing property.

There is provided a paper cup composed of a cylindrical cup- barrel member and a bottom member for use in sealingly closing the bottom part of the cylindrical cup barrel member. This is a paper cup in which the cylindrical cup barrel member and the bottom member are constituted by a laminated member having at least the outermost layer; paper base material; an adhesive agent layer composed of two layers of polyolefin resin layer; a barrier-like layer constituted by a vapor deposited film of non-organic oxide and a gas barrier-coated film at one surface of the base material film; and the inner-most layer stacked in sequence.


Inventors:
YAMAGUCHI YUKINOBU
MORISAKO TAKESHI
Application Number:
JP2001349381A
Publication Date:
May 21, 2003
Filing Date:
November 14, 2001
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
B32B1/02; B65D65/40; B65D81/24; B65D3/22; (IPC1-7): B65D3/22; B32B1/02; B65D65/40; B65D81/24
Attorney, Agent or Firm:
Satoshi Kanayama