POLYETHYLENIC RESIN TUBULAR FILM WITH CORONA DISCHARGE STRIPES AND APPLICATION THEREOF

Japanese Patent JP3860536

B2

PROBLEM TO BE SOLVED: To provide a polyethylenic resin tubular film with corona discharge stripes for which the number of processes can be reduced and with which an air vent slit bag having a structure with performance more excellent than that of a known air vent packaging bag is manufactured at lower cost than that the known air vent packaging bag, a manufacturing method therefor, an air vent slit bag, a packaging method, and an article packaged bag.
SOLUTION: There is provided a polyethylenic resin tubular film with corona discharge stripes which is used for manufacturing an article packaging bag wherein a large number of slits 12, which permit air to flow but do not pass dust in the open air and granular materials in the bag and are formed in a heat seal part 8 with intervals therebetween when upper and lower sides of the bag are heat-sealed, and has a thickness of 30-300 μm and a large number of longitudinally parallel corona discharge stripes 10 on one inner surface while the other inner surface is entirely subjected to corona discharge. There are also provided a manufacturing method for the polyethylenic resin tubular film, an air vent slit bag, a packaging method, and an article packaged bag.

Teruaki Hosono

JP2002374279A

December 20, 2006

December 25, 2002

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Hachiko Kasei Co., Ltd.

B65D30/02; B65D65/04; B29C55/28; B31B23/14; B31B23/60; B31B50/20; B31B50/64; B65D33/01; B29K23/00; B29L7/00; (IPC1-7): B65D65/04; B29C55/28; B31B1/20; B31B1/64; B31B23/20; B31B23/64; B65D30/02; B65D33/01; //B29K23:00; B29L7:00

JP8113248A
JP10181774A
JP10036535A
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JP10296856A
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Kenji Kawabi

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