Title:
PAPER CONTAINER FOR LIQUID AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2014223923
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a paper container for a liquid with a plug which is easily disassembled after the use by overcoming a weakness in a conventional method of using a release agent layer and devising a layer structure of a sealant layer and a manufacturing method, and a method for manufacturing the same.SOLUTION: A paper container 1 for a liquid is formed of a laminate 20 which uses paper 23 as a base material and has a surface resin layer 22 on one surface of the base material and at least a gas barrier layer 25 and a sealant layer 27 on the other surface and is formed in such a manner that the surface where the surface resin layer is formed is located on the outside of the container. In the paper container for a liquid, the sealant layer includes a thermally adhesive resin layer 29 being an innermost layer of the container and a thermoplastic resin layer 28 making contact with the thermally adhesive resin layer. A boundary surface between the two layers is releasable, and delamination strength at the boundary surface 30 is equal to or more than 0.3 N/15 mm and is equal to or less than 15 N/15 mm.
Inventors:
KAWAHARA YUKARI
Application Number:
JP2013102953A
Publication Date:
December 04, 2014
Filing Date:
May 15, 2013
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D5/40; B32B27/00; B32B27/10; B65D65/40