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WO1997030911A1 - Materiau plastique d'emballage - Google Patents

Materiau plastique d'emballage Download PDF

Info

Publication number
WO1997030911A1
WO1997030911A1 PCT/US1996/002254 US9602254W WO9730911A1 WO 1997030911 A1 WO1997030911 A1 WO 1997030911A1 US 9602254 W US9602254 W US 9602254W WO 9730911 A1 WO9730911 A1 WO 9730911A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging material
plastic packaging
holes
nylon
approximately
Prior art date
Application number
PCT/US1996/002254
Other languages
English (en)
Inventor
Moira Marx Nir
Nery Nehoray
Nehemia Aharoni
Original Assignee
Ben-Tzur, Israel
Stepac L.A., The Sterilizing Packaging Company Of L.A., Ltd.
State Of Israel - Ministry Of Agriculture
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 Ben-Tzur, Israel, Stepac L.A., The Sterilizing Packaging Company Of L.A., Ltd., State Of Israel - Ministry Of Agriculture filed Critical Ben-Tzur, Israel
Priority to PCT/US1996/002254 priority Critical patent/WO1997030911A1/fr
Priority to AU49284/96A priority patent/AU4928496A/en
Priority to BR9612519A priority patent/BR9612519A/pt
Priority to EP96905553A priority patent/EP0888237A4/fr
Priority to US08/918,584 priority patent/US6190710B1/en
Publication of WO1997030911A1 publication Critical patent/WO1997030911A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/70—Preservation of foods or foodstuffs, in general by treatment with chemicals
    • A23B2/704—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B2/708—Preservation of foods or foodstuffs, in general by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
    • B65D81/2084—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in a flexible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/388—Materials used for their gas-permeability

Definitions

  • the present invention relates to plastic pack ⁇ aging materials generally and more particularly plastic packaging materials for food and horticultural products such as produce, as well as packaging techniques and packaged products.
  • the present invention seeks to provide an improved plastic packaging material which has a relative ⁇ ly high permeability to water vapor.
  • plastic packaging material having a thickness of up to about 500 microns and a permeability to water vapor exceeding about 1.5g mm m -2 per day at 38 degree C and 85 - 90% relative humidity.
  • the material allows for minimal or no condensa ⁇ tion on its surface when used to package produce or flowers.
  • a packaged produce product including a plastic packaging material having a relatively high permeability to water vapor and providing an atmosphere for the packaged produce which comprises approximately 4 - 12% 0 2 , 2 - 20% C0 2 , and has a relative humidity of 85 - 100%.
  • a method of preserving food products comprising: providing a plastic packaging material of the type described hereinabove; and at least partially enclosing the food product using the plastic packaging material, thereby to provide an environment for the food product which comprises approximately 4 - 12% 0 2 , 2 - 20% C0 , and has a relative humidity of 85 - 100%.
  • the plastic packaging material is based on a polyamide such as nylon-6 or nylon-66.
  • the material may be manufactured from a polymer ⁇ ic material that comprises a blend of nylon-6 or nylon-66 with other polymeric and/or non-polymeric components.
  • the raw material may be manipulat ⁇ ed to increase the 0 2 and C0 2 permeability of the film.
  • blends of nylon-6 and other components may be manufactured into a material having a porous charac ⁇ ter.
  • the plastic packaging material may be manipulated after the film is formed.
  • the plastic packaging material may be perforated to have holes of approximately 1 - 10 mm diameter covering up to about 0.5% of the surface area of the material, or the plastic packaging material may be microperforated to have holes of approximately 0.05 - 1 mm diameter in a density of up to about 2000 holes per square meter of the material .
  • Microperforation or perforation may take place either in a continuous or in a batch process.
  • the perforation may be effected by contacting the material with one or more rollers, plates or other de ⁇ vices studded with appropriately sized and positioned pins or needles.
  • the perforation or micro- perforation may be effected by use of laser technology. Perforation may occur during extrusion of the material downstream of a bubble collapsing frame or m tandem with a subsequent processing step such as printing or package forming.
  • the raw material may be manipulat ⁇ ed to tailor its permeability to water vapor.
  • blends of nylon-6 and other raw materials may be processed to produce a film with a lower water vapor permeability than a film processed from nylon-6 alone.
  • the packaging material may be manipulated by heat treatment or orienta ⁇ tion processes to reduce its water vapor permeability.
  • the raw material may be manipulat ⁇ ed to absorb or degrade ethylene gas.
  • the raw material may be manipulat ⁇ ed to absorb or degrade ethylene gas.
  • blends of polyamides with other compounds which absorb or de ⁇ grade ethylene may be employed in the manufacture of the packaging material.
  • Fig. 1 is a simplified illustration of produce packaging in accordance with a preferred embodiment of the present invention.
  • Fig. 1 which illus ⁇ trates produce packaging in accordance with a preferred embodiment of the present invention.
  • produce 10 such as bean sprouts
  • a bag 12 preferably composed of nylon-6 or a blend containing nylon-6.
  • a package or wrap other than a bag may be provided.
  • the nylon-6 film may be extrusion blown or produced in any other conventional manner from raw materials which are commercially avail ⁇ able, inter alia, under the trade name Capron 8209 from Allied Signal or under the trade name Ultramid B4 from BASF.
  • the nylon-6 material may be extru ⁇ sion blended with nylon-6I/6T (for example SELAR PA 3426 commercially available from Dupont) to produce films of 20 and 30 micron thickness.
  • the ratios may be between 80 - 99% nylon-6 and 1 - 20% nylon-6I/6T.
  • the resulting films have reduced water vapor permeability relative to nylon-6 alone and retain the ability to minimize conden ⁇ sation.
  • the material may be a blend of nylon-6 and polyolefins and compatibilizers (for example Orgalloy LE 6000, commercially available from Elf Atochem) .
  • Such blends can be employed to produce films having reduced water vapor permeability relative to that of nylon-6 alone and are characterized by minimal mois ⁇ ture condensation on the film surface when used to pack ⁇ age produce or other horticultural products.
  • the nylon-6 material may be extrusion blended with nylon-11 or nylon-12 to produce films having reduced water vapor permeability relative to that of nylon-6 alone and are characterized by minimal moisture condensation on the film surface when used to package produce or other horticultural products.
  • the polyamide materi ⁇ al may be extrusion blended with porous additives, such as silica or diatomaceous earth to produce films having reduced water vapor permeability relative to that of polyamide alone and are characterized by ethylene sorp- tion and by minimal moisture condensation on the film surface when used to package produce or other horticul ⁇ tural products.
  • the ratios may be between 88 - 99% polya ⁇ mide and 0.5 - 12% porous additive.
  • the films may be oriented during manufacture or in a subsequent processing step to provide films having reduced water vapor perme ⁇ ability relative to unoriented films produced of the same raw materials.
  • the oriented material is characterized by minimal moisture condensation on the material surface when used to package produce or other horticultural products.
  • films of polyamide with or without the above described additives and compositions and having thicknesses of 5 - 100 microns may be passed through a heating tunnel to heat the film to temperatures of 100 200 degrees centigrade to provide films having reduced water permeability relative to polyamide that is not heat-treated and are characterized by minimal moisture condensation on the film surface when used to package produce or other horticultural products.
  • a polyamide material may be extrusion blended with soluble starch or salt additives and then passed through a water bath at 4 - 100 degree C to extract the soluble additive in order to produce films having increased 0 2 and C0 2 permeability relative to the base polyamide alone.
  • the ratios may be between 88 - 99% polyamide and 1 - 12% soluble starch or salt additive.
  • the bath water preferably is circulated, filtered and reintroduced to the bath on a continuous basis. Excess water is preferably removed from the film by passing it through a heating tunnel as described in the preceding paragraph.
  • Trays, baskets, containers, holders, bags, films or any other packaging material formed from films having a thickness generally m excess of 100 micron of nylon-6 or any other suitable polymer having water per e- ability exceeding 1.5 g mm per day at 38 degrees C with or without the additives or compositions described above may be provided by extrusion or any other suitable manufacturing process.
  • Film and sheets manufactured from any of the materials listed above and/or by any of the techniques listed above may be unperforated, or they may be perfo ⁇ rated or microperforated to increase the permeability of the film to 0 2 and C0 2 .
  • perforation refers to holes of approximately 1 10 mm diameter covering up to about 0.5% of the surface area of the material.
  • microperforation refers to holes of approximately 0.05 - 1 mm diameter in a density of up to about 2000 holes per square meter of the material.
  • Nylon-6 extrusion blown film having a thickness of 40 microns was employed to package bean sprouts, mushroom, tarragon, chive and chickory lettuce. After 8 days of storage at 4 degrees C and a relative humidity of 90 - 97%, the sprouts were inspected and their weight loss was measured and compared with a control package of sprouts which had been stored under identical conditions in PVC film packaging.
  • the weight loss of the nylon-6 packaged sprouts was found to be less than of the control packaged sprouts.
  • the nylon-6 packaged sprouts had a white color and were crisp, while the PVC packaged sprouts were brown and were not crisp.
  • the mushrooms were white and fresh after 18 days of storage in nylon-6 packaging. Visual observations of the tarragon, chive and chickory lettuce indicated that they stayed fresher longer in the nylon-6 packaging as compared to polyethylene packaging.
  • Nylon-6 extrusion blown film having a thickness of 20 microns and perforations 6 - 8 mm in diameter was used to package grapes. After 12 days of storage at 0 degrees C and 7 days storage at 20 degrees C, the condi ⁇ tion of the grapes was compared with control packages packaged in both perforated and non-perforated polyethyl ⁇ ene. The grapes packaged in nylon-6 showed a higher percentage of healthy clusters and lower levels of decay than the control packages.
  • Nylon-6 extrusion blown film having a thickness of 20 microns and microperforations 0.8 mm in diameter was used to package snap beans (green beans) . After 5 days of storage at 5 degrees C and 3 days storage at 20 degrees C, the condition of the beans was compared with control packages packaged in micro-perforated polyethyl ⁇ ene. The beans packaged in nylon-6 showed less weight loss, less rusty spots and substantially no mold growth as compared with the control packages.
  • Nylon-6 extrusion blown film having a thickness of 20 microns in both perforated and microperforated forms was used to package cucumbers. After 6 days of storage at 8 degrees C and 3 days storage at 20 degrees C, the condition of the cucumbers was evaluated and was found to be very good. The cucumbers packed in microper- forated packages showed no chilling injury, while those in perforated packages showed very low chilling injury.
  • a blend of 20% nylon 6I/6T and 80% nylon-6 was extrusion blown into a film 20 microns thick, microperfo- rated, and used to package cherry tomatoes. After a number of days, there was no condensation in the packages and the tomato quality was better than that of tomatoes packaged in alternative materials.
  • a blend of 10% nylon 6I/6T and 90% nylon-6 was extrusion blown into a film 30 microns thick, perforated, and used to package lettuce.
  • nylon-66 film manufactured by an extrusion blown film process, was perforated and then passed through a heating tunnel at 200 degrees C and was used to package carrots.
  • a copolymer of nylon-6 and nylon-66 is extruded into a film 20 microns thick via a blown film double- bubble process that imparts a high degree of orientation to the film. The film is then microperforated and used to package lettuce.
  • a blend of nylon 610 and 8% soluble starch is extruded into a 30 micron thick film by a water quench cast film process.
  • the soluble starch is extracted during the water quenching stage, leaving a porous film which is then passed through a heating tunnel and ultimately used to package green and red peppers.
  • a blend of 95% nylon-1 and 5% nylon 6I/6T is extruded in a chill-roll cast process to produce a sheet 150 microns thick. This material is then perforated and thermoformed into trays to package corn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Evolutionary Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Toxicology (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Wrappers (AREA)

Abstract

L'invention porte sur un procédé de conservation de produits horticoles (10) consistant à utiliser un matériau plastique d'emballage (12) présentant une épaisseur d'environ 500 microns et une perméabilité à la vapeur d'eau dépassant environ 1,5 g mm/m-2 par jour à 38 °C et pour un niveau d'humidité relative compris entre 85 et 95 %. Ainsi, lorsqu'on utilise ce matériau pour l'emballage de denrées et autres produits horticoles (10), aucune condensation ne se produit à sa surface.
PCT/US1996/002254 1996-02-20 1996-02-20 Materiau plastique d'emballage WO1997030911A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/US1996/002254 WO1997030911A1 (fr) 1996-02-20 1996-02-20 Materiau plastique d'emballage
AU49284/96A AU4928496A (en) 1996-02-20 1996-02-20 Plastic packaging material
BR9612519A BR9612519A (pt) 1996-02-20 1996-02-20 Material de embalagem de plástico
EP96905553A EP0888237A4 (fr) 1996-02-20 1996-02-20 Materiau plastique d'emballage
US08/918,584 US6190710B1 (en) 1996-02-20 1997-08-19 Plastic packaging material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1996/002254 WO1997030911A1 (fr) 1996-02-20 1996-02-20 Materiau plastique d'emballage

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US08/918,584 Continuation-In-Part US6190710B1 (en) 1996-02-20 1997-08-19 Plastic packaging material

Publications (1)

Publication Number Publication Date
WO1997030911A1 true WO1997030911A1 (fr) 1997-08-28

Family

ID=22254739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/002254 WO1997030911A1 (fr) 1996-02-20 1996-02-20 Materiau plastique d'emballage

Country Status (3)

Country Link
EP (1) EP0888237A4 (fr)
AU (1) AU4928496A (fr)
WO (1) WO1997030911A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330818A (en) * 1997-10-31 1999-05-05 Rexam Packaging Ltd Packaging for plant parts
EP0918022A2 (fr) * 1997-10-31 1999-05-26 Rexam Flexibles Viking Limited Emballage pour parties de plantes
US6730874B2 (en) 1999-05-04 2004-05-04 Elizabeth Varriano-Marston Registered microperforated films for modified/controlled atmosphere packaging
EP1637467A1 (fr) * 2004-09-15 2006-03-22 Wild Fungi, S.A. Système de conditionnement de champignons en atmosphère contrôlée
WO2007108772A1 (fr) * 2006-03-21 2007-09-27 Loong Keng Lim Contenant de stockage en plastique réutilisable muni d'un couvercle et de membranes perméables aux gaz pour le stockage sous atmosphère modifiée d'aliments et de denrées périssables
JP2018122942A (ja) * 2015-04-01 2018-08-09 住友ベークライト株式会社 青果物カビ増殖抑制包装袋、青果物入り包装体および青果物の鮮度保持方法

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US3682028A (en) * 1970-06-18 1972-08-08 Mobil Oil Corp Highly permeable thermoplastic film perforating
US3876738A (en) 1973-07-18 1975-04-08 Amf Inc Process for producing microporous films and products
JPS57167331A (en) 1981-04-08 1982-10-15 Unitika Ltd Preparation of porous polyamide membrane
WO1984004529A1 (fr) 1983-05-09 1984-11-22 Memtec Ltd Formation de membranes poreuses
JPH01148144A (ja) 1987-12-04 1989-06-09 Takano:Kk 包装用成形品
US4842741A (en) 1988-03-25 1989-06-27 Du Pont Canada Inc. Heterogeneous membranes from highly filled thermoplastic orientable polymers
JPH01167062A (ja) 1987-12-21 1989-06-30 Takano:Kk 包装用材料
JPH01309621A (ja) 1988-03-31 1989-12-14 Hercules Inc 新鮮な青果物を制御された雰囲気にて貯蔵するための容器
EP0358038A1 (fr) 1988-08-23 1990-03-14 Viskase Corporation Copolymère de nylon amorphe et films et mélanges de copolyamides
JPH0359196A (ja) 1989-07-25 1991-03-14 Eiwa Kagaku Kogyo Kk 鮮度保持紙およびその製造方法
US5037459A (en) 1988-10-07 1991-08-06 Philip Morris Management Corp. Device for controlling relative humidity within a substantially sealed container
JPH0474529A (ja) 1990-07-16 1992-03-09 Showa Denko Kk 高湿度維持用具
WO1993002130A1 (fr) 1991-07-24 1993-02-04 Australian Challenge (Operations) Pty. Ltd. Feuilles souples utilisees pour l'emballage en atmosphere modifiee
EP0538713A1 (fr) * 1991-10-18 1993-04-28 Seiji Kagawa Pellicule poreuse et dispositif pour sa fabrication
JPH05230235A (ja) 1992-02-18 1993-09-07 Sumitomo Bakelite Co Ltd 青果物包装用フイルム
EP0566097A1 (fr) 1992-04-14 1993-10-20 Millipore Corporation Procédé pour la fabrication d'un produit polymérique poreux à partir d'une composition et d'un produit polymérique non-poreux
JPH05316943A (ja) 1992-03-24 1993-12-03 Dainippon Printing Co Ltd 青果物鮮度保持包装用フィルム
JPH05329947A (ja) 1992-06-01 1993-12-14 Dainippon Printing Co Ltd 青果物鮮度保持包装用フィルム
JPH0662728A (ja) 1992-06-19 1994-03-08 Mitsubishi Kasei Corp 鮮度保持フィルム
JPH0671766A (ja) 1992-07-07 1994-03-15 Seiji Kagawa 多孔質フィルムおよびその製造方法
US5405561A (en) * 1993-08-31 1995-04-11 Dowbrands L.P. Process for microperforating zippered film useful for manufacturing a reclosable zippered bag
US5492705A (en) * 1992-04-27 1996-02-20 Dowbrands L.P. Vegetable containing storage bag and method for storing same

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US3682028A (en) * 1970-06-18 1972-08-08 Mobil Oil Corp Highly permeable thermoplastic film perforating
US3876738A (en) 1973-07-18 1975-04-08 Amf Inc Process for producing microporous films and products
JPS57167331A (en) 1981-04-08 1982-10-15 Unitika Ltd Preparation of porous polyamide membrane
WO1984004529A1 (fr) 1983-05-09 1984-11-22 Memtec Ltd Formation de membranes poreuses
JPH01148144A (ja) 1987-12-04 1989-06-09 Takano:Kk 包装用成形品
JPH01167062A (ja) 1987-12-21 1989-06-30 Takano:Kk 包装用材料
US4842741A (en) 1988-03-25 1989-06-27 Du Pont Canada Inc. Heterogeneous membranes from highly filled thermoplastic orientable polymers
JPH01309621A (ja) 1988-03-31 1989-12-14 Hercules Inc 新鮮な青果物を制御された雰囲気にて貯蔵するための容器
EP0358038A1 (fr) 1988-08-23 1990-03-14 Viskase Corporation Copolymère de nylon amorphe et films et mélanges de copolyamides
US5037459A (en) 1988-10-07 1991-08-06 Philip Morris Management Corp. Device for controlling relative humidity within a substantially sealed container
JPH0359196A (ja) 1989-07-25 1991-03-14 Eiwa Kagaku Kogyo Kk 鮮度保持紙およびその製造方法
JPH0474529A (ja) 1990-07-16 1992-03-09 Showa Denko Kk 高湿度維持用具
WO1993002130A1 (fr) 1991-07-24 1993-02-04 Australian Challenge (Operations) Pty. Ltd. Feuilles souples utilisees pour l'emballage en atmosphere modifiee
EP0538713A1 (fr) * 1991-10-18 1993-04-28 Seiji Kagawa Pellicule poreuse et dispositif pour sa fabrication
JPH05230235A (ja) 1992-02-18 1993-09-07 Sumitomo Bakelite Co Ltd 青果物包装用フイルム
JPH05316943A (ja) 1992-03-24 1993-12-03 Dainippon Printing Co Ltd 青果物鮮度保持包装用フィルム
EP0566097A1 (fr) 1992-04-14 1993-10-20 Millipore Corporation Procédé pour la fabrication d'un produit polymérique poreux à partir d'une composition et d'un produit polymérique non-poreux
US5492705A (en) * 1992-04-27 1996-02-20 Dowbrands L.P. Vegetable containing storage bag and method for storing same
JPH05329947A (ja) 1992-06-01 1993-12-14 Dainippon Printing Co Ltd 青果物鮮度保持包装用フィルム
JPH0662728A (ja) 1992-06-19 1994-03-08 Mitsubishi Kasei Corp 鮮度保持フィルム
JPH0671766A (ja) 1992-07-07 1994-03-15 Seiji Kagawa 多孔質フィルムおよびその製造方法
US5405561A (en) * 1993-08-31 1995-04-11 Dowbrands L.P. Process for microperforating zippered film useful for manufacturing a reclosable zippered bag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0888237A4

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330818A (en) * 1997-10-31 1999-05-05 Rexam Packaging Ltd Packaging for plant parts
EP0918022A2 (fr) * 1997-10-31 1999-05-26 Rexam Flexibles Viking Limited Emballage pour parties de plantes
EP0918022A3 (fr) * 1997-10-31 2000-01-26 Rexam Flexibles Viking Limited Emballage pour parties de plantes
US6730874B2 (en) 1999-05-04 2004-05-04 Elizabeth Varriano-Marston Registered microperforated films for modified/controlled atmosphere packaging
EP1637467A1 (fr) * 2004-09-15 2006-03-22 Wild Fungi, S.A. Système de conditionnement de champignons en atmosphère contrôlée
ES2254005A1 (es) * 2004-09-15 2006-06-01 Wild Fungi, S.A. Sistema de envasado de hongos en atmosfera controlada.
WO2007108772A1 (fr) * 2006-03-21 2007-09-27 Loong Keng Lim Contenant de stockage en plastique réutilisable muni d'un couvercle et de membranes perméables aux gaz pour le stockage sous atmosphère modifiée d'aliments et de denrées périssables
JP2007289156A (ja) * 2006-03-21 2007-11-08 Loong Keng Lim 食品や生もののｍａ貯蔵のための、再封・繰り返し使用可能なプラスチック製保存容器と通気性膜を備えた蓋
JP2018122942A (ja) * 2015-04-01 2018-08-09 住友ベークライト株式会社 青果物カビ増殖抑制包装袋、青果物入り包装体および青果物の鮮度保持方法

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AU4928496A (en) 1997-09-10
EP0888237A4 (fr) 1999-05-06
EP0888237A1 (fr) 1999-01-07

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