WO1981000092A1 - Method of supplying gas absorbent - Google Patents
Method of supplying gas absorbent Download PDFInfo
- Publication number
- WO1981000092A1 WO1981000092A1 PCT/JP1980/000156 JP8000156W WO8100092A1 WO 1981000092 A1 WO1981000092 A1 WO 1981000092A1 JP 8000156 W JP8000156 W JP 8000156W WO 8100092 A1 WO8100092 A1 WO 8100092A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gas absorbent
- film
- gas
- plastic film
- absorbent
- Prior art date
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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
- 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
Definitions
- the present invention relates to a method for supplying a gas absorbent, and more particularly, to a method for supplying a gas absorbent for absorbing a harmful gas for storing articles to a hermetically sealed packaging container containing articles such as food.
- such a gas absorbent generally has a force used in the form of an envelope (hereinafter simply referred to as an encapsulated gas absorbent) encapsulated by an envelope film.
- an encapsulated gas absorbent encapsulated by an envelope film.
- a breathable film such as a paper-perforated plastic film is used as the enveloped film. Therefore, any conventional encapsulated gas absorbent has the disadvantage that, if it is exposed to the atmosphere as it is, it absorbs the target gas contained in the air, and its gas absorption capacity is impaired. Have.
- a substantially air-impermeable envelope is formed as a whole having a structure in which an air-impermeable plastic film is laminated or overcoated on a surface of a gas-permeable heat-resistant film.
- the non-breathable plastic film forms an outer surface and encloses the gas absorbent.
- At least a part of the surface of the agent is pressed against the heated piercing member to form a vent only in the plastic film layer forming the surface of the encapsulated film, Then, the encapsulated gas absorbent capable of absorbing gas is supplied into a hermetically sealed container containing required articles, and the container is hermetically sealed.
- the gas absorbent used in the present invention may be used for protecting articles such as oxygen, moisture, odor, carbon dioxide, or harmful waste (for example, hydrogen sulfide, sub-gas).
- ⁇ M? 1 Is it a generic term for substances that adsorb or absorb gas components?
- these include various oxygen scavengers such as iron powder and hydrosulfite for deoxygenation, and silica gel and zeolite for dehumidification or drying.
- oxygen scavengers such as iron powder and hydrosulfite for deoxygenation, and silica gel and zeolite for dehumidification or drying.
- metal hydroxides such as sodium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, magnesium oxide, etc. And acid Stuff etc. there
- the gas absorbent a substance having a physical adsorption action or a chemical reaction action with respect to the component to be removed from the atmosphere is used.
- the gas absorbent is used in the form of powder or particles, and its particle size is not particularly limited, but is generally 0.5 mm or less, preferably 150 or less, and more preferably 5 or less. Used in the form of fine particles of 0 or less.
- FIG. 1 shows a cross-sectional explanatory view of the envelope according to the present invention
- FIG. 2 shows a new surface explanatory view of the envelope film.
- 1 indicates a gas absorbent
- 2 indicates an encapsulating film
- 3 indicates a non-breathable plastic film
- 4 indicates a breathable heat-resistant film.
- the non-breathable plastic film 3 used in the present invention only needs to be a heat-meltable or thermally decomposable material, and various plastic films are applied to such a material.
- plastic films such as polyethylene, polypropylene, and polybutadiene, polyesters such as polyethylene terephthalate, nylon 6, nylon 6,6, polyamide, polyvinyl chloride, etc.
- films include polybutene compounds, polystyrene, and polyatalylate.
- films such as the plastic film of the present invention, in addition to the above-mentioned polymers, films such as copolymers and blends thereof are also applied, and furthermore, laminating films thereof are also applied.
- the thickness of this film is usually 5 or more, preferably 20 to 100.
- the air-permeable and heat-resistant film used in the present invention may be any one having a high melting point or a high thermal decomposition point and a gas-permeable property as well as the above-mentioned plastic film.
- Examples of such paper include thin paper, paraffin paper, oil paper, asphalt paper, astringent paper, parchment paper, pseudo parchment paper, printing paper, and other types of paper. is there.
- these air-permeable heat-resistant films can be a laminate in which an air-permeable plastic film such as a perforated plastic film is laminated on the back surface to strengthen the film. The reinforcing breathable plastic film laminated on the back of this paper must be heat-resistant.
- the gas absorbent encapsulated by the encapsulating film has a gas-absorbing reaction even when it is left in the air because the encapsulating film is entirely impermeable. There is nothing that can happen.
- a perforating member heated at least on at least a part of the surface of the encapsulated film is pressed. Then, pores of a required size are formed only in the plastic film layer 3 forming the surface of the encapsulating film.
- the perforating member may be a rod or needle having good thermal conductivity, such as metal, wound around a nickel wire, or a rotary heating port having a built-in electric heating element.
- a hot plate having a large number of parts formed on the surface is used.
- the shape of the surface of the perforating member to be brought into contact with the plastic film 3 is arbitrary, and it can be brought into surface or point contact with the film surface, and a hole of a shape and size corresponding to that is made of a plastic. Drilled in Film 3.
- the temperature of the piercing member when the piercing member is brought into contact with the surface of the envelope is sufficient to melt or thermally decompose the plastic film 3, but incinerate the heat-resistant film 4. It is a temperature that will not be noticeable.
- the specific heating temperature is appropriately determined in consideration of the thermal properties of the plastic film 3 and the heat-resistant film 4 to be applied.
- the perforating member can be heated to about 200 to 400C. When this perforating member is pressed against one or both surfaces of the enveloped gas absorbent, only the portion of the plastic film layer 3 forming the surface of the enveloped film that comes in contact with the perforating member is heated.
- FIG. 3 shows a cross-sectional explanatory view of the encapsulating film in which the ventilation holes are thus formed.
- reference numeral 5 denotes a vent.
- sealed container used in the present invention is widely interpreted, and includes various types of sealed containers that have been generally used in the past, such as bags, cylinders, boxes, trays, and cans.
- the required gas vents are formed only in the surface plastic film layer of the encapsulating film in this way, and the encapsulating gas absorbent which is capable of absorbing gas can be used. As soon as possible, it is supplied to the container that contains the goods and is sealed in the container with the goods.
- the perforating member used in the present invention is preferably combined with an automatic supply device for automatically supplying the encapsulated gas absorbent. That is, the heating member is attached to a supply port of a supply device that periodically supplies the enveloped gas absorbent, and the heated perforating member is provided on one or both sides of the enveloped gas absorbent passing through the supply path. To obtain an encapsulated gas absorbent to which gas absorption reactivity has been imparted.
- the encapsulated gas absorbent is released into the air under normal conditions. ⁇ It does not react even if it is placed, and a vent is formed in the surface during supply, and it is supplied to the sealed container in the state where the reaction is started, so automatic supply is also easy 3 ⁇ 4 ⁇ ) No loss of gas absorption capacity
- the ventilation hole is a surface plastic film.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Separation Of Gases By Adsorption (AREA)
- Gas Separation By Absorption (AREA)
- Packages (AREA)
Abstract
A method of supplying a hermetic container with a gas absorbent, in which use is made of a coating film, having a substantially non-permeable property, formed by laminating or overcoating the surface of an air-permeable heat-resistant film, such as paper, with a non-permeable plastic film. An enveloped gas absorbent is formed in advance by forming the non-permeable plastic film over the surface so as to enclose a gas absorbent such as a disoxidation agent or drying agent. A heated perforating member is pressed against a portion of at least the surface of the enveloped gas absorbent to provide vent holes solely in the plastic film layer that forms the surface of the enveloping film. The enveloped gas absorbent, provided with a gas absorbing property in the manner described above, is then introduced into a hermetic container which accomodates the articles to be enveloped. In accordance with this method, the gas absorbent makes it possible to absorb oxygen and steam, which are detrimental to the preservation of the articles, immediately before the hermetic container is supplied with the articles. As a result, loss of the gas absorbent is prevented during the introduction thereof, the latter operation being facilitated by employing automatic supply means.
Description
C O C O
明 細 書 Specification
ガ ス吸収剤の供給方法 Supply method of gas absorbent
技術分野 Technical field
本発明はガス吸収剤の供給方法、 さらに詳しくは、 食品などの 物品を収容した密封性包装容器に物品の保存に有害 ガスを吸収 するガス吸収剤を供給する方法に関するものである。 The present invention relates to a method for supplying a gas absorbent, and more particularly, to a method for supplying a gas absorbent for absorbing a harmful gas for storing articles to a hermetically sealed packaging container containing articles such as food.
背景技術 Background art
従来、 食品や、 金属、 繊維製品 ¾どの種々の物品を乾燥剤や脱 酸素剤などのガス吸収剤とともに、 密封性容器に収容密封するこ とは広く行われている。 このよ うにして物品とと もに密封容器に 収容されたガス吸収剤は、 そのガス吸収剤の特性に応じてその密 封容器内に含まれる湿気や、 臭気、 酸素るどの物品の保存に好ま しくないガスを吸収除去し、 収容物品をそれらのガスによる被害 から防止する。 2. Description of the Related Art Conventionally, it has been widely practiced to store various kinds of articles such as foods, metals and textiles in a hermetically sealed container together with a gas absorbent such as a desiccant or an oxygen scavenger. In this way, the gas absorbent contained in the sealed container together with the article is used to store the moisture, odor, oxygen, etc. contained in the sealed container depending on the characteristics of the gas absorbent. Absorb and remove unwanted gases and prevent contained goods from being damaged by those gases.
ところで、 この よ うなガス吸収剤は、 一般に、 被包フ ィ ルムに よ 被包された被包体（本明細書では単に被包ガス吸収剤という） の形で使用されている力 この場合、，この被包フイ ルム と しては 紙ゃ有孔プラスチ ッ ク フ イ ルム などの通気性フ ィ ルムが採用され ている。 したがって、 従来の被包ガス吸収剤は、 いずれも、 これ を大気中にそのまま暴露する と、 大気中に含まれている対象ガス を吸収し、 そのガス吸収能が損われてしま う という欠点を有して いる。 By the way, such a gas absorbent generally has a force used in the form of an envelope (hereinafter simply referred to as an encapsulated gas absorbent) encapsulated by an envelope film. In addition, a breathable film such as a paper-perforated plastic film is used as the enveloped film. Therefore, any conventional encapsulated gas absorbent has the disadvantage that, if it is exposed to the atmosphere as it is, it absorbs the target gas contained in the air, and its gas absorption capacity is impaired. Have.
従来の被包ガス吸収剤は、 前記したよ うに、 そのままの形で吸 収反応に開始するものであるこ とから、 その保存及び密封性容器 に対する供給作業に著しい困難が伴った。 すなわち、 この被包ガ As described above, since the conventional encapsulated gas absorbent starts the absorption reaction as it is, there is a remarkable difficulty in its storage and supply operation to the hermetically sealed container. That is, this envelope
ΟΪ,ίΡΙ 0
ス吸収剤を保存するには、 完全気密性の密封容器に密封保存する ことが必要であ ]?、 また、 密封性容器に供給するには迅速に行う ことが必要である。 殊 、 従来の被包ガス吸収剤の場合、 その多 数をあらかじめ自動供給装置に充塡し、 この供給装置によ 、 物 品の入った包装容器に連続的に供給しよ う とすると、 その被包ガ ス吸収剤のガス吸収能は最初のものと最後のものとでは、 相当の 差異が生じてしまい、 最後の方の被包ガス吸収剤はそのガス吸収 能が著しく損失されたものに る。 従って、 密封性容器に対して ガス吸収剤を供給する方法において、 ガス吸収剤の損失を防止す る方法が強く要望されている。 ΟΪ, ίΡΙ 0 In order to store the absorbent, it is necessary to store it tightly in a completely air-tight container. In particular, in the case of conventional encapsulated gas absorbents, a large number of them are charged in advance to an automatic supply device, and when the supply device attempts to supply the same continuously to the packaging container containing the material, the problem is that The gas absorption capacity of the encapsulated gas absorbent differs significantly between the first and last ones, and the gaseous absorbent at the end has a significant loss of gas absorption capacity. You. Therefore, there is a strong demand for a method of supplying a gas absorbent to a hermetically sealed container, which method prevents loss of the gas absorbent.
発明の開示 Disclosure of the invention
本発明によ i 通気性耐熱性フ ィ ルムの表面に非通気性のブラ スチックフ ィ ルムを積層又はォ一バー コ一ト した構造を有する全 体と して実質的に非通気性の被包フイ ルムを用いて、 該非通気性 のプラ スチ ッ ク フ ィ ルムが外面を形成するよ うにしてガス吸収剤 を被包してあらかじめ形成された被包ガス吸収剤を、 該被包ガス 吸収剤の表面の少 く とも一部に加熱された穿設用部材を押圧し てその被包フ イ ルムの表面を形成するプラスチックフ イ ルム層の みに通気孔を穿設し、 次いでこのよ、うにしてガス吸収の可能と ¾ つた被包ガス吸収剤を所要の物品を収容した密封性容器内に供給 して、 該容器を密封することを特徵とする密封性容器に対するガ ス吸収剤の供給方法が提供される。 According to the present invention, a substantially air-impermeable envelope is formed as a whole having a structure in which an air-impermeable plastic film is laminated or overcoated on a surface of a gas-permeable heat-resistant film. Using a film, the non-breathable plastic film forms an outer surface and encloses the gas absorbent. At least a part of the surface of the agent is pressed against the heated piercing member to form a vent only in the plastic film layer forming the surface of the encapsulated film, Then, the encapsulated gas absorbent capable of absorbing gas is supplied into a hermetically sealed container containing required articles, and the container is hermetically sealed. Is provided.
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
本発明で用いるガス吸収剤は、 酸素、 湿気、 臭気、 炭酸ガス又 は有害カス （たとえば硫化水素、 亜 fi黎ガスなど） などの物品保 The gas absorbent used in the present invention may be used for protecting articles such as oxygen, moisture, odor, carbon dioxide, or harmful waste (for example, hydrogen sulfide, sub-gas).
〇M ?1
存に好ま しく ガス成分に対して吸着る し吸収作用を持った 物質の総称であ ？、 従来公知の種々の物質が包含される。 たとえ ば、 このよ う ·ものと しては、 脱酸素のために、 鉄粉、 ハイ ドロ サルフアイ トなどの各種脱酸素剤、 脱湿又は乾燥のために、 シ リ 力 ゲル、 ゼォ ラ イ ト 、 活性白土、 五酸化リ ン、 酸化カルシ ウ ム、 酸化力 リ ウ ム、 酸化アル ミ ニ ゥ ム、 無水硫酸力 ルシ ゥ ム、 酸化マ グネシゥム、 水酸化カリ ウム、 水酸化ナ ト リ ウム、 塩化カルシ ゥ ムなどがあ 脱臭のために、 活性炭、 ゼォライ ト、 活性白土、 ベン ト ナイ ト 、 ケイ ソゥ土、 ィオン交換樹脂などがあり、 また硫 化水素、 亜硫酸ガス、 炭酸ガス どの酸性ガスを吸着するために， アル力 リ性物質、 たとえば、 水酸化ナト リ ウム、 水酸化カルシゥ ム、 水酸化マ グネ シ ウ ム、 酸化カルシ ウ ム、 酸化マ グネシ ウ ムな どの金属の水酸化物及び酸化物 どがある。 〇M? 1 Is it a generic term for substances that adsorb or absorb gas components? Various known substances are included. For example, these include various oxygen scavengers such as iron powder and hydrosulfite for deoxygenation, and silica gel and zeolite for dehumidification or drying. , Activated clay, phosphorus pentoxide, calcium oxide, oxidized lime, aluminum oxide, sulfuric anhydride oxidized magnesium, magnesium oxide, potassium hydroxide, sodium hydroxide Activated carbon, zeolite, activated clay, bentonite, silicon dioxide, ion-exchange resin, etc., and acid gases such as hydrogen sulfide, sulfur dioxide, carbon dioxide, etc. In order to adsorb water, metal hydroxides such as sodium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, magnesium oxide, etc. And acid Stuff etc. there is.
いずれにしても、 本発明において、 ガス吸収剤としては、 雰囲 気中から除去しょう とする成分に対して物理吸着作用あるいは化 学反応作用を有する物質が用いられる。 In any case, in the present invention, as the gas absorbent, a substance having a physical adsorption action or a chemical reaction action with respect to the component to be removed from the atmosphere is used.
本発明において、 前記ガス吸収剤は粉末状又は粒子状で用いら れ、 その粒径は特に限定され ¾いが、 一般には 0. 5丽以下、 好ま しくは 1 50 以下、 さらに好ま しくは 5 0 以下の微粒子状で用 いられる。 In the present invention, the gas absorbent is used in the form of powder or particles, and its particle size is not particularly limited, but is generally 0.5 mm or less, preferably 150 or less, and more preferably 5 or less. Used in the form of fine particles of 0 or less.
これらのガス吸収剤はその全体を被包フィ ル ムで被包した被包 体の形で適用されるが、 本発明の場合、 この被包フ ィ ルムとして. 通気性耐熱性フ ィ ルムの表面に非通気性プラ スチ ッ ク フ ィ ルムを 積層又はオーバーコー ト して形成した全体と して実質的に非通気 性のものを用いる。
第 1図に本発明による被包体の断面説明図を示し、 第 2図に被 包フ ィ ル ムの新面説明図を示す。 これらの図中、 1はガス吸収剤、 2は被包フィルムを示し、 また 3は非通気性プラスチッ クフ ィ ル ム、 4は通気性耐熱性フ ィ ルムを各示す。 These gas absorbents are applied in the form of an envelope which is entirely enveloped by an envelope film. In the present invention, the gas absorbent is used as the envelope film. Laminate or overcoat a non-breathable plastic film on the surface and use a substantially non-breathable plastic film as a whole. FIG. 1 shows a cross-sectional explanatory view of the envelope according to the present invention, and FIG. 2 shows a new surface explanatory view of the envelope film. In these figures, 1 indicates a gas absorbent, 2 indicates an encapsulating film, 3 indicates a non-breathable plastic film, and 4 indicates a breathable heat-resistant film.
本発明で用いる非通気性ブラスチックフ ィ ルム 3は、 熱溶融性 あるいは熱分解性のものであればよ く、 このよ うなものには各種 プラスチッ ク フ ィルムが適用される。 たとえば、 ポ リ エチレン、 ポリ プロ ピレン、 ポ リ ブタジエンなどのポ リ オレフ イ ン、 ポリ ェ チレンテレフタ レー ト などのポリ エステル、 ナイ ロン 6 、 ナイ 口 ン 6 , 6 どのポリ アミ ド、 ポリ塩化ビ ニル、 ポ リ ス チレン、 ポ リ アタ リ レー トるどのポリ ビュル化合物などを基材と したフ ィ ル ムが例示される。 もちろん、 本発明のプラスチッ クフ ィ ルムとし ては、 前記重合体の他、 それらの共重合体、 ブレン ドなどのフ ィ ル ム も適用され、 さらにそれらのラ ミネー トフ ィ ルムも適用され る。 このフ ィ ルムの厚さは通常 5 以上、 好ま しくは 2 0〜： 1 0 0 である。 The non-breathable plastic film 3 used in the present invention only needs to be a heat-meltable or thermally decomposable material, and various plastic films are applied to such a material. For example, polyolefins such as polyethylene, polypropylene, and polybutadiene, polyesters such as polyethylene terephthalate, nylon 6, nylon 6,6, polyamide, polyvinyl chloride, etc. Examples of such films include polybutene compounds, polystyrene, and polyatalylate. Needless to say, as the plastic film of the present invention, in addition to the above-mentioned polymers, films such as copolymers and blends thereof are also applied, and furthermore, laminating films thereof are also applied. The thickness of this film is usually 5 or more, preferably 20 to 100.
本発明で用いる通気性耐熱性フ ィ ルムは、 前記したブラスチ ッ クフ ィ ルム よ ])も高融点あるいは高熱分解点を有するもので、 つ通気性を有するものであればよい。 このよ う ものと しては、 薄葉紙、 パラ フ ィ ン紙、 油紙、 アス フ ァ ル ト紙、 渋紙、 硫酸紙、 擬硫酸紙、 印刷用紙などの各種紙があ ]?、 また不織布 どがある。 また、 これらの通気性耐熱性フ イ ル ムは、 その裏面に有孔ブラス チックフ ィ ル ムなどの通気性プラ スチッ クフ ィ ルムを積層して強 化したような積層体であるこ とができる。 この紙の裏面に積層す る強化用通気性プラスチ ッ ク フ ィ ルムは、 耐熱性のものである必 The air-permeable and heat-resistant film used in the present invention may be any one having a high melting point or a high thermal decomposition point and a gas-permeable property as well as the above-mentioned plastic film. Examples of such paper include thin paper, paraffin paper, oil paper, asphalt paper, astringent paper, parchment paper, pseudo parchment paper, printing paper, and other types of paper. is there. In addition, these air-permeable heat-resistant films can be a laminate in which an air-permeable plastic film such as a perforated plastic film is laminated on the back surface to strengthen the film. The reinforcing breathable plastic film laminated on the back of this paper must be heat-resistant.
Λ. W1PO ^
要はな く、 前記したよ う な各種ブ ラ スチ ッ ク フ ィ ルムが適用され る 0 Λ. W1PO ^ There is no need to apply various plastic films as described above.
前記したよ う 被包フ イ ルムで被包されたガス吸収剤はその被 包フ ィ ルムが全体的に非通気性のものであるため、 これを空気中 に放置してもガス吸収反応を生起するよ なことはない。 本発明 においては、 このよ うな被包ガス吸収剤を対象物品の入った容器 に供給するに際し、 その被包フ ィ ルム表面の少な く と も一部に加 熱された穿孔用部材を押圧し、 その被包フィ ルムの表面を形成す るプラ スチ ッ ク フ ィ ルム層 3のみに所要寸法の数の細孔を穿設す る。 この場合の穿孔用部材としては、 金属などの熱伝導の良好 棒状物又は針状物の周囲にニク ロ ム線を卷きつけたもの、 あるい は電気発熱体を内蔵した回転加熱口ールゃ加熱板表面に多数の ώ 部を形成したもの どが採用される。 プラスチックフ ィ ルム 3 と 接触させる穿孔用部材の表面の形状は任意であ 、 フ ィ ルム表面 に対し面又は点接触とさせることができ、 それに応じた形状と寸 法の孔がブラ スチ ッ ク フ イ ル ム 3に穿設される。 As described above, the gas absorbent encapsulated by the encapsulating film has a gas-absorbing reaction even when it is left in the air because the encapsulating film is entirely impermeable. There is nothing that can happen. In the present invention, when such an encapsulated gas absorbent is supplied to a container containing a target article, a perforating member heated at least on at least a part of the surface of the encapsulated film is pressed. Then, pores of a required size are formed only in the plastic film layer 3 forming the surface of the encapsulating film. In this case, the perforating member may be a rod or needle having good thermal conductivity, such as metal, wound around a nickel wire, or a rotary heating port having a built-in electric heating element. A hot plate having a large number of parts formed on the surface is used. The shape of the surface of the perforating member to be brought into contact with the plastic film 3 is arbitrary, and it can be brought into surface or point contact with the film surface, and a hole of a shape and size corresponding to that is made of a plastic. Drilled in Film 3.
穿孔用部材を被包体表面に接触させる際の穿孔用部材の温度は プラスチ ッ ク フ ィ ルム 3を溶融又は熱分解するには充分 温度で あるが、 耐熱性フ イ ル ム 4を焼却するよ うるこ とのない温度であ る。 具体的加熱温度は、 適用するプラスチックフ ィ ルム 3及び耐 熱性フ ィ ルム 4の熱的性質を考えて適当に定める。 たとえば、 耐 熱性フ イ ル ム と して紙を用いる場合、 穿孔用部材は 2 0 0〜 4 0 0 C程度に加熱することができる。 この穿孔用部材を被包ガス吸収 剤の片面又は両面へ押圧すると、 被包フ ィ ルムの表面を形成する プ ラスチ ッ ク フ ィ ル ム層 3の穿孔用部材と接舷する部分のみが熱 The temperature of the piercing member when the piercing member is brought into contact with the surface of the envelope is sufficient to melt or thermally decompose the plastic film 3, but incinerate the heat-resistant film 4. It is a temperature that will not be noticeable. The specific heating temperature is appropriately determined in consideration of the thermal properties of the plastic film 3 and the heat-resistant film 4 to be applied. For example, when paper is used as the heat-resistant film, the perforating member can be heated to about 200 to 400C. When this perforating member is pressed against one or both surfaces of the enveloped gas absorbent, only the portion of the plastic film layer 3 forming the surface of the enveloped film that comes in contact with the perforating member is heated.
OMPI
溶融又は熱分解され、 その部分に通気孔が穿設される。 穿設する 通気孔の数と寸法は任意であるが、 一般には、 直径 0.0 5籠〜 2爾 程度の孔を l crfあた ]? 1〜 1 0 0個穿設するよ うにするのがよい。 第 3図にこの よ うにして通気孔の穿設された被包フィルムの断面 説明図を示す。 図中、 5は通気孔を示す。 OMPI It is melted or thermally decomposed, and a vent is formed in that part. The number and size of the ventilation holes to be drilled are arbitrary, but in general, it is better to drill 1 to 100 holes with a diameter of 0.05 baskets to about 2 holes lcrf]? . FIG. 3 shows a cross-sectional explanatory view of the encapsulating film in which the ventilation holes are thus formed. In the figure, reference numeral 5 denotes a vent.
本発明においていう密封性容器は広く解釈され、 従来一般に採 用されている種々の形状の密封性容器、 たとえば袋状、 円筒状、 箱状、 ト レィ状、 缶状などのものがある。 The term “sealed container” used in the present invention is widely interpreted, and includes various types of sealed containers that have been generally used in the past, such as bags, cylinders, boxes, trays, and cans.
このよ うにして形成された反応性の付与された被包ガス吸収剤 は、 針などを突刺して通気性を穿設するような場合とは異 ？ 、 穿設孔は被包フ ィ ルムの表面ブラスチ ック フ ィ ルム層のみに形成 されることから、 たとえこの孔が大き くても、 内容物がその孔を 通って外部へ漏出されるようなことは ¾い。 Is the reactive gas-encapsulated gas absorbent formed in this way different from the case where a needle or the like is pierced to create air permeability? However, since the perforation hole is formed only in the surface plastic film layer of the encapsulating film, even if this hole is large, the contents can leak to the outside through the hole. What is that?
本発明においては、 このよ うにして被包フ ィ ル ムの表面ブラス チックフ ィ ル ム層のみに所要の通気孔が穿設され、 ガス吸収の 能となった被包ガス吸収剤は、 可及的速やかに物品を収容する容 器内へ供給され、 物品とともにその容器内に密封される。 In the present invention, the required gas vents are formed only in the surface plastic film layer of the encapsulating film in this way, and the encapsulating gas absorbent which is capable of absorbing gas can be used. As soon as possible, it is supplied to the container that contains the goods and is sealed in the container with the goods.
本発明において用いる穿孔用部材は、 被包ガス吸収剤を自動供 給する自動供給装置と結合させるのがよい。 すなわち、 周期的に 被包ガス吸収剤を供給する供給装置の供給口にこの加熱部材を付 設し、 その供給路を通る被包ガス吸収剤の片面又は両面にこの加 熱された穿孔用部材を押圧させ、 ガス吸収反応性の付与された被 包ガス吸収剤を得るよ うにする。 The perforating member used in the present invention is preferably combined with an automatic supply device for automatically supplying the encapsulated gas absorbent. That is, the heating member is attached to a supply port of a supply device that periodically supplies the enveloped gas absorbent, and the heated perforating member is provided on one or both sides of the enveloped gas absorbent passing through the supply path. To obtain an encapsulated gas absorbent to which gas absorption reactivity has been imparted.
産業上の利用可能性 Industrial applicability
本発明によれば、 被包ガス吸収剤は通常の状態では空気中に放 O PI
·置しても反応するものではなく、 供給に際してその表面に通気孔 が穿設され、 反応を開始する状態で密封性容器に供給されるので， 自動供給も容易に ¾ Ϊ)かつ供給に際してのガス吸収能の損失もな According to the present invention, the encapsulated gas absorbent is released into the air under normal conditions. · It does not react even if it is placed, and a vent is formed in the surface during supply, and it is supplied to the sealed container in the state where the reaction is started, so automatic supply is also easy ¾ Ϊ) No loss of gas absorption capacity
い。 さらに、 本発明の場合、 通気孔は表面ブラスチックフ ィ ルム No. Furthermore, in the case of the present invention, the ventilation hole is a surface plastic film.
層のみに穿設されるので、 微粉末状の内容物がその通気孔から外 Because only the layer is drilled, the fine powder content
部へ漏出するよう ことは い。 従って、 本発明の方法は、 ガス It does not leak to the department. Therefore, the method of the present invention
吸収剤の密封性容器に対する供給方法と して極めて有用なもので It is an extremely useful method for supplying absorbent to hermetically sealed containers.
ある。 is there.
C PIC PI
WIPOWIPO
·
·
Claims
1. 通気性耐熱性フィルムの表面に非通気性のプ ラスチ ッ ク フィ ル厶を積層又はオーバ コ ー ト した構造を有する全体と して実質 的に非通気性の被包フイ ルムを用いて、 該非通気性のブラスチ ック フ ィ ルムが外面を形成するよ うにしてガス吸収剤を被包し てあらかじめ形成された被包ガス吸収剤を、 該被包ガス吸収剤 の表面の少 く とも一部に加熱された穿孔用部材を押圧してそ の被包フ ィ ル ムの表面を形成するブラスチックフ イ ルム層のみ に通気孔を穿設し、 次いでこのようにしてガス吸収の可能とな つた被包ガス吸収剤を所要の物品を収容した密封性容器内に供 給し、 該容器を密封することを特徵とする密封性容器に対する ガス吸収剤の供給方法。 1. Use a substantially air-impermeable enveloped film that has a structure in which a non-air-permeable plastic film is laminated or overcoated on the surface of a gas-permeable heat-resistant film. The non-breathable plastic film covers the gas absorbent so as to form an outer surface, and the pre-formed encapsulated gas absorbent is reduced in surface area of the encapsulated gas absorbent. In addition, a ventilation hole is formed only in the plastic film layer that forms the surface of the encapsulating film by pressing the partially heated member for perforation, and then it is possible to absorb gas in this way. A method for supplying a gas absorbent to a hermetically sealed container, comprising supplying the encapsulated gas absorbent into a hermetically sealed container containing required articles, and sealing the container.
2. ガス吸収剤が脱酸素剤である請求の範囲第 1項に記載の方法 c 2. The method c according to claim 1, wherein the gas absorbent is an oxygen scavenger.
3. ガス吸収剤が乾燥剤である請求の範囲第 1項に記載の方法。 3. The method according to claim 1, wherein the gas absorbent is a desiccant.
4. 通気性耐熱性フ ィ ルムと して紙を用いる請求の範囲第 1項〜 第 3項のいずれかに記載の方法。 4. The method according to any one of claims 1 to 3, wherein paper is used as the breathable heat-resistant film.
5. 通気性耐熱性フ ィ ルムの裏面にさらに通気性プラ スチックフ ィ ルムが積層されている請求の範囲第 1項〜第 4項のいずれか に記載の方法。 5. The method according to any one of claims 1 to 4, wherein a breathable plastic film is further laminated on the back surface of the breathable heat-resistant film.
C 'PIC 'PI
'ゝん WIPO
'Pon WIPO
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU60585/80A AU6058580A (en) | 1979-07-07 | 1980-07-07 | Method of supplying gas absorbent |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8618979A JPS5610321A (en) | 1979-07-07 | 1979-07-07 | Feeding method of gas absorbent |
| JP79/86189 | 1979-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1981000092A1 true WO1981000092A1 (en) | 1981-01-22 |
Family
ID=13879815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1980/000156 WO1981000092A1 (en) | 1979-07-07 | 1980-07-07 | Method of supplying gas absorbent |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5610321A (en) |
| WO (1) | WO1981000092A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0181778A2 (en) * | 1984-11-13 | 1986-05-21 | Nippon Sanso Kabushiki Kaisha | Evacuated heat insulation unit and method of manufacturing same |
| KR100440012B1 (en) * | 1996-12-07 | 2004-09-18 | 현대자동차주식회사 | Method for plastic canning hydrocarbon-absorbing divice reducing weight of the divece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664708B (en) * | 2016-02-01 | 2018-05-25 | 中国科学院工程热物理研究所 | A kind of carbon-dioxide absorbent, its preparation method and its application process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS469767Y1 (en) * | 1968-08-15 | 1971-04-06 | ||
| JPS5016834B2 (en) * | 1971-10-06 | 1975-06-16 | ||
| JPS5228955A (en) * | 1975-08-25 | 1977-03-04 | Daiya Totsukiyo Purojiekuto Kk | Preserving method of sealeddup packed food |
| JPS52154536A (en) * | 1976-06-17 | 1977-12-22 | Daiya Totsukiyo Purojiekuto Kk | Deoxidizing agent for preservation of food |
-
1979
- 1979-07-07 JP JP8618979A patent/JPS5610321A/en active Granted
-
1980
- 1980-07-07 WO PCT/JP1980/000156 patent/WO1981000092A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS469767Y1 (en) * | 1968-08-15 | 1971-04-06 | ||
| JPS5016834B2 (en) * | 1971-10-06 | 1975-06-16 | ||
| JPS5228955A (en) * | 1975-08-25 | 1977-03-04 | Daiya Totsukiyo Purojiekuto Kk | Preserving method of sealeddup packed food |
| JPS52154536A (en) * | 1976-06-17 | 1977-12-22 | Daiya Totsukiyo Purojiekuto Kk | Deoxidizing agent for preservation of food |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0181778A2 (en) * | 1984-11-13 | 1986-05-21 | Nippon Sanso Kabushiki Kaisha | Evacuated heat insulation unit and method of manufacturing same |
| EP0181778A3 (en) * | 1984-11-13 | 1987-07-29 | Nippon Sanso Kabushiki Kaisha | Evacuated heat insulation unit and method of manufacturing same |
| KR100440012B1 (en) * | 1996-12-07 | 2004-09-18 | 현대자동차주식회사 | Method for plastic canning hydrocarbon-absorbing divice reducing weight of the divece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS629364B2 (en) | 1987-02-27 |
| JPS5610321A (en) | 1981-02-02 |
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