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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10882290 B1

PDFFull Text
Date of Patent:
Jan. 05, 2021

Filed:

Jan. 14, 2016

Packaging sheet, and packaging container and packaging method using the packaging sheet

Applicant:

Osaka Sealing Printing Co., Ltd., Osaka, JP;

Inventors:

Shinichi Ono, Osaka, JP;

Takayuki Kimura, Osaka, JP;

Hidenao Takeuchi, Osaka, JP;

Masahiko Yoshida, Osaka, JP;

Hidenobu Harima, Osaka, JP;

Assignee:

Osaka Sealing Printing Co., LTD., Osaka, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Jes F Pascua

Int. Cl.
CPC ...
B32B 27/20 (2006.01); B41M 5/26 (2006.01); B41M 5/337 (2006.01); B65D 65/40 (2006.01); B41M 5/323 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B41M 5/00 (2006.01); B41M 5/30 (2006.01); B41M 5/40 (2006.01); B65B 11/10 (2006.01); B65B 41/12 (2006.01); B65B 61/02 (2006.01); B65D 75/26 (2006.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B41M 5/0094 (2013.01); B41M 5/26 (2013.01); B41M 5/30 (2013.01); B41M 5/323 (2013.01); B41M 5/337 (2013.01); B41M 5/3375 (2013.01); B41M 5/40 (2013.01); B65B 11/10 (2013.01); B65B 41/12 (2013.01); B65B 61/025 (2013.01); B65D 65/40 (2013.01); B65D 75/26 (2013.01); B32B 2307/31 (2013.01); B32B 2307/412 (2013.01); B32B 2307/75 (2013.01); B32B 2439/46 (2013.01);
Abstract

Provided are a packaging sheet and a packaging container where it is unnecessary to paste a printed label and disappearance or color development due to friction or the like after thermal printing do not occur. The packaging sheet includes a heat seal layerfor thermally welding by heating, a heat-sensitive layerincluding a color developing material that develops a color by heating, and a base material layerthat secures the strength and protects the heat-sensitive layer. The heat seal layer, the heat-sensitive layer, and the base material layerare provided in this order from a back surface side in a thickness direction. The packaging sheet is transparent before the heat-sensitive layerdevelops the color.

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