Title:
AIR-PERMEABLE BAG
Document Type and Number:
Japanese Patent JP3415795
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an air-permeable bag which is improved in a sealing strength while maintaining sufficient air permeability, which makes fine foreign substances hardly intrude into the bag from the external side, and which is simple in structure and is easy to be manufactured.
SOLUTION: A vent hole is provided between edge portions of two sheets facing each other and forming a bag main body and, in this vent hole, a tape having warty protrusions on its one surface or on its both surfaces is interposed between the two sheets.
Inventors:
Norio Higashi
Higashi Zeno
Higashi Zeno
Application Number:
JP37379699A
Publication Date:
June 09, 2003
Filing Date:
December 28, 1999
Export Citation:
Assignee:
East Seal Co., Ltd.
International Classes:
B65D33/01; (IPC1-7): B65D33/01
Domestic Patent References:
| JP11314645A |
Other References:
【文献】登録実用新案3053828(JP,U)
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)
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