発泡断熱紙容器用紙基材、発泡断熱紙容器用シートおよび発泡断熱紙容器

Japanese Patent JP7114905

B2

To provide a foaming heat insulation paper container excellent in heat insulation property and appearance of a surface, and a paper substrate for foaming heat insulation paper container and a sheet for foaming heat insulation paper container used for manufacturing the same.SOLUTION: A substrate 3 for foaming heat insulation paper container has a starch barrier layer 2 having formation amount of 0.8 to 6.0 g/mand penetration thickness to a paper substrate 1 of 60 to 180 μm per a single sided surface on at least single sided surface of the paper substrate 1. A sheet for foaming heat insulation paper container 5 has a thermoplastic resin layer 4 on at least single sided surface of the paper substrate 1, and the starch barrier layer 2 with the above described formation amount and penetration depth to the paper substrate 1 between the paper substrate 1 and the thermoplastic resin layer 4. The foaming heat insulation paper container 8 uses a foam heat insulation paper on at least one of a body member 6 and a bottom sheet member 7, the foam heat insulation paper has a foam resin layer 9 consisting of the thermoplastic resin on at least single sided surface of the paper substrate 1, and the starch barrier layer 2 with the above described formation amount and penetration depth to the paper substrate 1 between the paper substrate 1 and the foam resin layer 9.SELECTED DRAWING: Figure 3

Daishin Hirano
Ryo Shimizu
Tomohiro Endo
Yuki Tamura

JP2018005658A

August 09, 2022

January 17, 2018

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Oji Holdings Co., Ltd.

B32B9/06; B65D3/22; B65D65/40; D21H17/28; D21H27/30

JP2002254532A
JP2008087765A
JP2005035216A

Patent Attorney Corporation Isono International Patent and Trademark Office

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