JPS6484875A - Partition film for receiving freshness retaining agent - Google Patents

Partition film for receiving freshness retaining agent

Info

Publication number
JPS6484875A
JPS6484875A JP23727087A JP23727087A JPS6484875A JP S6484875 A JPS6484875 A JP S6484875A JP 23727087 A JP23727087 A JP 23727087A JP 23727087 A JP23727087 A JP 23727087A JP S6484875 A JPS6484875 A JP S6484875A
Authority
JP
Japan
Prior art keywords
partition film
film
retaining agent
freshness retaining
partition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP23727087A
Other languages
Japanese (ja)
Other versions
JP2780230B2 (en
Inventor
Yoshiichi Morita
Shuji Wakamatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP62237270A priority Critical patent/JP2780230B2/en
Publication of JPS6484875A publication Critical patent/JPS6484875A/en
Application granted granted Critical
Publication of JP2780230B2 publication Critical patent/JP2780230B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Packages (AREA)

Abstract

PURPOSE:To improve the formability, strength, rigidness and gas permeability of partition film and prevent the lowering of the function of a freshness retaining agent by forming the partition film of plastic sheet, providing the partition film with projecting film portions, with the thickness of the latter smaller than that of the former and specifying the oxygen permeability of the partition film. CONSTITUTION:In this example (embodiment), a freshness retaining agent 2 is placed in a space defined by partition film for receiving the same, i.e. by the partition film 1 formed of a gas permeable film and a bottom lid 41 of a container. This gas permeable partition film 1 and the bottom lid 41 of the container are sealed at the bottom of the container 4 by forming crimped portions 411, with their peripheral edges arranged in coincidence. The partition film for receiving freshness retaining agent is provided with a single or plurality of projection film portions, with the thickness of the latter smaller than that of the former. The oxygen permeability of the partition film is held within the range of 1000-30000cc/m<2>.atm.24hr (25 deg.C, 60%RH). As the material of the partition film, the plastic sheet consisting of polypropylene is used, preferably with the thickness within the range of 100mu-2000mu.
JP62237270A 1987-09-24 1987-09-24 Partition membrane for storing freshness agent Expired - Fee Related JP2780230B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62237270A JP2780230B2 (en) 1987-09-24 1987-09-24 Partition membrane for storing freshness agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62237270A JP2780230B2 (en) 1987-09-24 1987-09-24 Partition membrane for storing freshness agent

Publications (2)

Publication Number Publication Date
JPS6484875A true JPS6484875A (en) 1989-03-30
JP2780230B2 JP2780230B2 (en) 1998-07-30

Family

ID=17012907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62237270A Expired - Fee Related JP2780230B2 (en) 1987-09-24 1987-09-24 Partition membrane for storing freshness agent

Country Status (1)

Country Link
JP (1) JP2780230B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5329154A (en) * 1992-03-17 1994-07-12 Kabushiki Kaisha Toshiba Compound semiconductor integrated circuit having improved electrode bonding arrangements
JP2019135174A (en) * 2018-02-05 2019-08-15 川本国際包装有限公司 Freshness holding exhaust valve structure for packaging bag

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101456U (en) * 1983-12-14 1985-07-10 株式会社資生堂 Lid for liquid storage container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60101456U (en) * 1983-12-14 1985-07-10 株式会社資生堂 Lid for liquid storage container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5329154A (en) * 1992-03-17 1994-07-12 Kabushiki Kaisha Toshiba Compound semiconductor integrated circuit having improved electrode bonding arrangements
JP2019135174A (en) * 2018-02-05 2019-08-15 川本国際包装有限公司 Freshness holding exhaust valve structure for packaging bag

Also Published As

Publication number Publication date
JP2780230B2 (en) 1998-07-30

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees