Packaging material and information recording media packaged...

Details Packaging material and information recording media packaged... Packaging material and information recording media packaged...

2007-10-23

2007-10-23

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

C428S212000, C428S035200, C428S035700, C428S411100, C428S430000

Reexamination Certificate

active

10381180

ABSTRACT:
The present invention relates to a packing material used for wrapping an article to be packed and sealing and packing the article to be packed by heat-sealing mutually superposed end parts. The packing material is composed of a biodegradable film. Heat sealing agent layers are selectively provided in the heat sealing positions or the heat-sealed parts of the biodegradable film. The heat sealing agent layers are provided on the front surface and the back surface, the front surface and the front surface, or the back surface and the back surface of the mutually superposed biodegradable film when the article to be packed is packed. On the biodegradable film, picture pattern layers as well as the heat sealing agent layers are formed within a range 70% or less as large as the entire area including the front surface and the back surface of the biodegradable film.

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Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 157161/1980 (Laid-open No. 80454/1982), (Hikotsugu ENOMOTO), May 18, 1982, p. 1, lines 4 to 10; Figs. 1 to 6.

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