Title:
ZIPPER TAPE AND PACKAGING BAG WITH ZIPPER TAPE
Document Type and Number:
WIPO Patent Application WO/2011/070996
Kind Code:
A1
Abstract:
Given that ribs (47), having a thickness (D) substantially identical to the thickness (D2) of first and second thick portions (45A, 45B) thereof, are disposed upon cut portions of zipper tape (44), it is possible for the first and second thick portions (45A, 45B) and the ribs (47) to be attached upon an inner surface (211A) when the zipper tape is attached to a bag body. Consequently, when tearing open a container bag (1), stress is concentrated upon thin portions (46) with low tensile strength, allowing breaking at the thin portions (46), resulting in a single break site and no waste products. When tearing the container bag (1), the tearing line is positioned by the ribs (47), allowing straight tearing without the tearing line becoming erratic, and tearing with ease.
Inventors:
KATADA Ryo (1660, Kamiizumi Sodegaura-sh, Chiba 05, 〒2990205, JP)
片田 亮 (〒05 千葉県袖ケ浦市上泉１６６０番地 Chiba, 〒2990205, JP)
片田 亮 (〒05 千葉県袖ケ浦市上泉１６６０番地 Chiba, 〒2990205, JP)
Application Number:
JP2010/071785
Publication Date:
June 16, 2011
Filing Date:
December 06, 2010
Export Citation:
Assignee:
IDEMITSU UNITECH CO.,LTD. (26-2, Shinkawa 1-chome Chuo-k, Tokyo 33, 〒1040033, JP)
出光ユニテック株式会社 (〒33 東京都中央区新川一丁目２６番２号 Tokyo, 〒1040033, JP)
KATADA Ryo (1660, Kamiizumi Sodegaura-sh, Chiba 05, 〒2990205, JP)
出光ユニテック株式会社 (〒33 東京都中央区新川一丁目２６番２号 Tokyo, 〒1040033, JP)
KATADA Ryo (1660, Kamiizumi Sodegaura-sh, Chiba 05, 〒2990205, JP)
International Classes:
B65D33/00; B65D33/25; B65D77/30
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (3rd floor, Ogikubo TM building 26-13, Ogikubo 5-chome, Suginami-k, Tokyo 51, 〒1670051, JP)
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