GB2230248A - Method of eliminating gas in an airtight package - Google Patents

Method of eliminating gas in an airtight package Download PDF

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Publication number
GB2230248A
GB2230248A GB8921816A GB8921816A GB2230248A GB 2230248 A GB2230248 A GB 2230248A GB 8921816 A GB8921816 A GB 8921816A GB 8921816 A GB8921816 A GB 8921816A GB 2230248 A GB2230248 A GB 2230248A
Authority
GB
United Kingdom
Prior art keywords
gas
polymer film
absorbent
package
airtight
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.)
Withdrawn
Application number
GB8921816A
Other versions
GB8921816D0 (en
Inventor
Youl Lark Lee
Un Hua Pek
Don Young Suh
Ui Chan Koh
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.)
Doosan Farms Co Ltd
Original Assignee
Doosan Farms Co Ltd
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 Doosan Farms Co Ltd filed Critical Doosan Farms Co Ltd
Publication of GB8921816D0 publication Critical patent/GB8921816D0/en
Publication of GB2230248A publication Critical patent/GB2230248A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Packages (AREA)
  • Gas Separation By Absorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Vacuum Packaging (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Glass Compositions (AREA)
  • Secondary Cells (AREA)

Abstract

A method of eliminating gas in an airtight package comprising enveloping absorbent or adsorbent materials capable of absorbing or adsorbing unwanted or volatile gas in a polymer film which is impermeable to liquids and solids but is permeable to gases and packing goods into an airtight container together with the enveloped absorbent or adsorbent material to eliminate the unwanted or volatile gas left in the package during the packing process or generated in or permeated into the package during storage.

Description

METHOD OF ELIMINATING GAS IN AN AIRTIGHT PACKAGE The present invention reiates to a method oi eiiminating gas in an airtight package.
In order to pack farm livestock or fishery products, processed food or chemicals, they are generally packed in airtight containers so as to prevent denaturalization of the contents. However, the airtight containers prevent not only the permeation of air and liquid materials but also the discharge of unwanted gases generated in the airtight package after it has been packed.
Particularly, when fermented or fermentable food such as " Kimchi" is packed in an airtight container, a considerable amount of carbon dioxide and other gases is generated in the airtight container during storage. The gases thus generated are not discharged and diminish or decrease the flavour and quality of the food. Also, an excessive volume of gas can damage the container due to the pressure of the gas.
Hitherto, a method of extracting unwanted material is known in which an absorbent material contained in a bag, for example, a silica gel bag, has been used. However, the silica gel bag functions merely as a moisture absorbent for absorbing moisture permeating into a package containing solid materials. This method is also useless for packaging with liquids due to the liquid permeability of the bag.
When a food package has to stand for a long period of time, it is crucial to deoxygenate the package.
hitherto, antioxidants such as sodium sulphide were added to the package for deoxygenation. For deoxygenation of a dry food, an oxygen absorbing material enveloped in a porous film was placed in the package. However, when the oxygen absorbing material is added directly, there is a safety problem. The oxygen absorbing material enveloped in a porous film also creates a safety problem because the absorbent material can escape through the porous film. This can be more significant when the package has liquid contents.
The present invention seeks to provide a method of eliminating unwanted or volatile gas ieft in an airtight package during the packing process or generated in or permeated into the airtight package during storage.
According to the invention, a method of eliminating gas in an airtight package comprises enveloping absorbent or adsorbent materials capabie of absorbing or adsorbing unwanted or volatile gas in a polymer film which is impermeable to liquids and solids but is permeable to gases and packing goods into an airtight container together with the enveloped absorbent or adsorbent material to eliminate the unwanted or volatile gas left in the package during the packing process or generated in or permeated into the package during storage.
The invention will now be described in greater detail by way of example.
The present invention is used for eiiminating unwanted or volatile gas such as oxigen (O2), carbon dioxide (coy) ) or ammonia < NH) ) when various goods are packed into an airtight container, for example a bag, can or other conventional container. The present method is particularly applicable to the packaging of liquid foods, liquid chemicals and other goods containing liquid materials.
When an oxidizable food or chemical is packed, oxygen must be eliminates from the package. When fermen.abAe a food such as Kimchi is packed into an airtight container, it is necessary to eliminate carbon dioxide gas and/or volatile gases generated in the package during storage. Thus elimination of the unwanted or volatile gas is necessary for the preservation of the quality of the contents and prevention of damage to the container.
Therefore, the present inventions eliminates unwanted or volatile gas generated in the airtight package during the storage by using absorbent or adsorbent materials capabie of absorbing or adsorbing the gas. The present invention also inciudes elimination of unwanted or volatile gas left in the package during the packing step or permeated into the package during storage.
The absorbent or adsorbent material used in the present invention is seiected depending upon the kind of gas to be eliminated. For example, iron or sodium suiphite is used for elimination of oxygen, caici um hydroxide or sodium hydroxide is used for elimination of carbon dioxide, and active carbon is used for eiimination of acetic acid. The absorbent or adsorbent material can exist in liquid or solid state. the amount of absorbent or adsorbent material used varies depending on the kind of absorbent or adsorbent material used and on the amount of gases to be eliminated.
The absorbent or adsorbent material are catalytic; they have no effect on the volume of gas.
In the present invention, the absorbent or adsorbent material is enveloped in a polymer film which is impermeable to solids and liquids but is permeable to gases and then packed into the container. When the liquid and solid impermeable and gas permeable film is used, the solid or liquid absorbent or adsorbent material is not discharged through the film and does not contaminate the goods but gases can be eliminated due to the gas permeability of the film. In addition, some of the newly developed polymer films are selectively permeable to a specific gas. It is thus possible to eliminate only specific gases by using an appropriate film.
Polymer film is made of natural or synthetic polymers such as silicone, low density polyethylene, cellulose acetate etc., which are permeable only to specific gases to be eliminated. The present invention uses intact polymer film or a polymer film laminated or coated on paper or fabric. the polymer film comes in the form of a bag, a capsule or a carrier and is then used for enveloping the absorbent or adsorbent material.
In the present invention, the absorbent or adsorbent material enveloped in the polymer film is generally packed into a conventional airtight container such as a pouch, can or bottle. When a bottle is used as a container, the absorbent or adsorbent material enveloped in the polymer film is placed not only in the bottle but also in the bottle cap to eliminate unwanted gas in the bottle and prevent the bottle from exploding by the high pressure resulting from the generated gas.
The present invention will be illustrated in the following examples: Example 1 Calcium hydroxide Ca(OH), was used as a carbon dioxide absorbent material and a silicone film was usco as the polymer film. 200g of Kimichi together with 5g of Ca (OH) enveloped in the silicone film were placed in a container made of aluminium foil laminated with polypropylene film then the container was made airtight.
It was heated to 28"C.
After 24, 40 and 60 hours, the volume of carbon dioxide gas in the container was measured. The results are shown in the table Example 2 Following the same procedure in Example i, but using 10ml of 8N sodium hydroxide NaOH as a carbon dioxide gas absorbent material, the results are again shown in the table.
Example 3 Following the same procedure as in Example 1, but using low density polyethylene (LDPE) film as the polymer film, the results are shown in the table.
Example 4 Following the same procedure as in Example í but using 10ml of 8N sodium hydroxide NaOH as a carbon dioxide gas absorbent material and LDPE film as the polymer film, the results are shown in the table.
Control Following the same procedure as in Example 1 but using Kimchi without any absorbent material, the results are shown in the table Tabie
Gas Volume (cc) Absorbent Polymer Film Material 24hr. 40hr. 60hr.
Example 1 Ca(HO)2 Silicone film 20 10 10 Example 2 NaOH Silicone film 10 10 10 Example 3 Ca(OH)2 LDPE film 30 20 10 Example 4 NaOH LDPE film 20 10 10 Control - - 180 320 260 As shown in the Table, a very small amount of gas was detected in Examples 1 to 4 while a large amount of gas was detected in Control. This infers that carbon dioxide gas, generated in an airtight container during storage, was eliminated by the absorbent material enveloped in the polymer film according to the present invention. The effect of the polymer film as a gas permeable envelope was confirmed in these examples.
Example 5 90ml of water saturated with air (8ppm Q..) was poured into a 100ml glass bottle and 10ml of 20% aqueous sodium sulphite solution in a silicone bag was placed in the bottle. The bottle was rendered airtight.
After 24 hours, the amount of oxygen remaining was measured. It was found that the concentration of oxygen was substantially decreased to O.Oippm. The oxygen dissolved in the water had permeated the silicone bag and been absorbed by the sodium sulphite.
Example 6 100ml of 0,5X aqueous acetic acid solution was poured into a 250ml flask and 5g of active carbon enveloped in cellulose acetate film was put into the flask. The flask was made airtight.
After 50 hours, the amount of acetic acid was measured.
It was found that the concentration of the acetic acid had decreased to 0. 3%. The acetic acid had permeated through the cellulose film and had been adsorbed on the active carbon.
Example 7 Air saturated with sour Kimchi juice was put into a 250mi aluminium can and 0.5g of active carbon enveloped in a 0.02mm thick polyethylene film was placed in the can. The can was made airtight.
At the same time the same amount of sour Kimchi juice was poured into a 250ml flask which was then made airtight.
After 24 hours, an odour (panel) test was carried out.
As compared with the absence of active carbon, the odour was significantly decreased when the active carbon was used. The volatile odorous components permeated through the polyethylene film and were adsorbed on the active carbon.
Example 8 Following the same procedure as in Example 7 but using a bottle instead of the aluminium can and placing the active carbon in the bottle cap, the same results as in Example 7 were obtained.
As described above, the present invention can effectively eliminate unwanted or volatile gas by using absorbent or adsorbent materials enveloped in a polymer film regardless of the state of the contents, that is, liquid gas or solid, without contaminating the goods.
While the effectiveness of the present invention has been described and proved by specific experiments described in the Example, it will be apparent to one skilled in the art that various changes and modifications can be made thereto without departing from the spirit and scope thereof.

Claims (6)

1. A method of eiiminating gas in an airtight package comprising enveloping absorbent or adsorbent materials capable of absorbing or adsorbing unwanted or volatile gas in a polymer film which is impermeabie to liquids and solids but is permeable to gases and packing goods into an airtight container together with the enveloped absorbent or adsorbent material to eliminate the unwanted or volatile gas left in the package during the packing process or generated in or permeated into the package during storage.
2. A method according to claim 1, wherein the gas eliminated includes a vapour volatilized from liquid goods.
3. A method according to claim 1 or 2, wherein the polymer film is an intact polymer film.
4. A method according to claim 1 or 2, wherein the polymer film is laminated or coated on paper or fabric.
5. A method according to any one of claims 1 to 4, wherein the polymer film is used in the form of a bag, capsule or in a carrier-encapsulated form.
6. A method of eliminating gas in an airtight package substantially as described herein with reference to any of the examples.
GB8921816A 1989-04-07 1989-09-27 Method of eliminating gas in an airtight package Withdrawn GB2230248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890004597A KR910002270B1 (en) 1989-04-07 1989-04-07 Method of removing gas from vessel

Publications (2)

Publication Number Publication Date
GB8921816D0 GB8921816D0 (en) 1989-11-08
GB2230248A true GB2230248A (en) 1990-10-17

Family

ID=19285179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8921816A Withdrawn GB2230248A (en) 1989-04-07 1989-09-27 Method of eliminating gas in an airtight package

Country Status (7)

Country Link
JP (1) JPH02298310A (en)
KR (1) KR910002270B1 (en)
CN (1) CN1046135A (en)
DE (1) DE4011210A1 (en)
FR (1) FR2645512B1 (en)
GB (1) GB2230248A (en)
IT (1) IT1238302B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012156685A3 (en) * 2011-05-18 2013-03-07 Emco Packaging Systems Ltd. Packaging inclusion for controlling or modifying the atmosphere in packaging
US10333168B2 (en) 2013-12-30 2019-06-25 Saes Getters S.P.A. Carbon dioxide composite getter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023290A1 (en) * 1992-05-20 1993-11-25 Hachiku Shoji Kabushikikaisha Device for preparing long preservable box-lunch and lunch box therefor
DE4233817C1 (en) * 1992-10-07 1994-02-24 Kabi Pharmacia Gmbh Packaging material for a gas-releasing product
FR2714595B1 (en) * 1993-12-30 1996-02-02 Oreal Water in oil emulsion containing retinol, its use and packaging.
US7198768B2 (en) * 2004-06-16 2007-04-03 Corning Incorporated Anti-degradation mechanisms for protecting aminated surfaces
CN112316652B (en) * 2019-08-05 2021-11-23 宁德时代新能源科技股份有限公司 Gas adsorption member and lithium ion battery

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989831A (en) * 1962-07-23 1965-04-22 Hesser Ag Maschf Packages and methods of producing the same
GB1259100A (en) * 1968-07-15 1972-01-05
GB1369992A (en) * 1972-05-17 1974-10-09 British American Tobacco Co Packages
US4079152A (en) * 1975-03-10 1978-03-14 Karakian Bedrosian Controlled atmosphere tomato package
US4332845A (en) * 1979-12-21 1982-06-01 Mitsubishi Gas Chemical Company, Inc. Oxygen absorbent-containing bag
US4421235A (en) * 1979-02-08 1983-12-20 Mitsubishi Gas Chemical Co. Inc. Oxygen absorbent-containing bag and container sealing member having the same
GB2133018A (en) * 1982-12-20 1984-07-18 El Paso Polyolefins Heat-sterilizable polyolefin compositions and articles manufactured therefrom
GB2148837A (en) * 1983-11-01 1985-06-05 Bedrosian & Ass Controlled-atmosphere produce package
EP0151489A2 (en) * 1984-02-09 1985-08-14 Mitsubishi Gas Chemical Company, Inc. Package containing quality-retaining agent

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128577A (en) * 1977-04-15 1978-11-09 Fujishima Daishiro Method of supplying deoxidizing agent
JPS5741977A (en) * 1980-08-27 1982-03-09 Canon Inc Paper-feeding mechanism in recorder
JPS58177137A (en) * 1982-04-13 1983-10-17 Toppan Printing Co Ltd Carbon dioxide gas absorbent

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989831A (en) * 1962-07-23 1965-04-22 Hesser Ag Maschf Packages and methods of producing the same
GB1259100A (en) * 1968-07-15 1972-01-05
GB1369992A (en) * 1972-05-17 1974-10-09 British American Tobacco Co Packages
US4079152A (en) * 1975-03-10 1978-03-14 Karakian Bedrosian Controlled atmosphere tomato package
US4421235A (en) * 1979-02-08 1983-12-20 Mitsubishi Gas Chemical Co. Inc. Oxygen absorbent-containing bag and container sealing member having the same
US4332845A (en) * 1979-12-21 1982-06-01 Mitsubishi Gas Chemical Company, Inc. Oxygen absorbent-containing bag
GB2133018A (en) * 1982-12-20 1984-07-18 El Paso Polyolefins Heat-sterilizable polyolefin compositions and articles manufactured therefrom
GB2148837A (en) * 1983-11-01 1985-06-05 Bedrosian & Ass Controlled-atmosphere produce package
EP0151489A2 (en) * 1984-02-09 1985-08-14 Mitsubishi Gas Chemical Company, Inc. Package containing quality-retaining agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012156685A3 (en) * 2011-05-18 2013-03-07 Emco Packaging Systems Ltd. Packaging inclusion for controlling or modifying the atmosphere in packaging
US10333168B2 (en) 2013-12-30 2019-06-25 Saes Getters S.P.A. Carbon dioxide composite getter

Also Published As

Publication number Publication date
JPH02298310A (en) 1990-12-10
IT1238302B (en) 1993-07-12
IT9003429A1 (en) 1991-10-04
KR910002270B1 (en) 1991-04-11
KR900016576A (en) 1990-11-13
DE4011210A1 (en) 1990-10-11
FR2645512A1 (en) 1990-10-12
CN1046135A (en) 1990-10-17
GB8921816D0 (en) 1989-11-08
IT9003429A0 (en) 1990-04-04
FR2645512B1 (en) 1994-10-07

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