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Patent Searching and Data


Title:
PACKAGING CONTAINER, AND PACKAGE USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/090567
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a packaging container which exhibits excellent freshness retention capacity with respect to contents such as fruit and vegetables as a result of being provided with appropriate gas permeability, appropriately inhibits infiltration of foreign substances in air, and is capable of being degassed in a short period of time. Provided is a packaging container including a polymer film, wherein the oxygen permeability at 22˚C and 40% RH is 500-50000 cc/m2/day/atm, the polymer film is provided with at least one opening, the length of the opening is 0.5-7 mm, and the width of the opening is less than 10 µm. Alternatively, provided is a packaging container including a polymer film, wherein the oxygen permeability at 22˚C and 40% RH is 2000-50000 cc/m2/day/atm, a protrusion having at least one opening is provided to the polymer film, the length of the opening is 0.5-7 mm, and the width of the opening is such that perforation cannot be confirmed by observation at 4-times magnification using an optical microscope.

Inventors:
NARITA Junichi (Inc. 7, Kanda Mitoshiro-cho, Chiyoda-ku, Chiyoda-k, Tokyo 85, 〒1018485, JP)
Application Number:
JP2016/084510
Publication Date:
June 01, 2017
Filing Date:
November 21, 2016
Export Citation:
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Assignee:
MITSUI CHEMICALS TOHCELLO, INC. (7 Kanda Mitoshiro-cho, Chiyoda-ku Tokyo, 85, 〒1018485, JP)
International Classes:
B65D85/50; A23B7/00; A23B7/148; B65D81/26; B65D81/28
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (Tennoz Central Tower, 2-2-24 Higashi-Shinagawa Shinagawa-k, Tokyo 76, 〒1408776, JP)
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