JPS6225408B2 - - Google Patents
Info
- Publication number
- JPS6225408B2 JPS6225408B2 JP53132005A JP13200578A JPS6225408B2 JP S6225408 B2 JPS6225408 B2 JP S6225408B2 JP 53132005 A JP53132005 A JP 53132005A JP 13200578 A JP13200578 A JP 13200578A JP S6225408 B2 JPS6225408 B2 JP S6225408B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- carbon dioxide
- polyethylene
- bag
- calcium hydroxide
- 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.)
- Expired
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 84
- 239000001569 carbon dioxide Substances 0.000 claims description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 42
- -1 polyethylene Polymers 0.000 claims description 20
- 239000004698 Polyethylene Substances 0.000 claims description 16
- 229920000573 polyethylene Polymers 0.000 claims description 16
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 14
- 239000000920 calcium hydroxide Substances 0.000 claims description 14
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims description 11
- 239000004793 Polystyrene Substances 0.000 claims description 10
- 229920002223 polystyrene Polymers 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 15
- 238000004806 packaging method and process Methods 0.000 description 10
- 241000533293 Sesbania emerus Species 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 241000227653 Lycopersicon Species 0.000 description 3
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 229920005669 high impact polystyrene Polymers 0.000 description 3
- 239000004797 high-impact polystyrene Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000005021 flexible packaging material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Packages (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
- Gas Separation By Absorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【発明の詳細な説明】 本発明は炭酸ガス吸収シートに関する。[Detailed description of the invention] The present invention relates to a carbon dioxide absorbing sheet.
焙煎したコーヒー豆等は一般に真空包装されて
販売されるが、焙煎したコーヒー豆等は保存中に
ガスを発生する故、発生ガスの為に真空包装体の
形状が崩れてしまい、それによつて被包装体の品
質は低下しないにもかかわらず、包装体の商品価
値が低下したり、失なわれたりすることがある。 Roasted coffee beans are generally sold in vacuum packaging, but since roasted coffee beans generate gas during storage, the shape of the vacuum package may collapse due to the gas generated. Even though the quality of the packaged object does not deteriorate, the commercial value of the package may be reduced or lost.
この欠点を解消するために、焙煎したコーヒー
豆等のガス放出性物品を収容した可〓性包装材料
からなる包装容器内に、通気孔を形成した保形性
中空体を収容してなる真空包装体が考案された
（実公昭53−36297号参照）。 In order to eliminate this drawback, we developed a vacuum system in which a shape-retaining hollow body with ventilation holes is housed inside a packaging container made of flexible packaging material that houses gas-releasing articles such as roasted coffee beans. A packaging body was devised (see Utility Model Publication No. 53-36297).
しかしながら、この考案に係る真空包装体には
被包装物を収容するのに保形性中空体の分だけ余
分の空間を必要とする欠点がある。 However, the vacuum packaging body according to this invention has the disadvantage that an extra space is required for the shape-retaining hollow body in order to accommodate the packaged object.
又、青果物の場合、青果物自体が呼吸している
為、密封包装すると、発生する炭酸ガスによつて
青果物の鮮度が損なわれることがある。 In addition, in the case of fruits and vegetables, since the fruits and vegetables themselves breathe, if they are sealed in sealed packaging, the freshness of the fruits and vegetables may be impaired by the carbon dioxide gas generated.
本発明者は叙上の欠点を解消すべく研究の結
果、熱可塑性樹脂に水酸化カルシウムをブレンド
したものをシート状に成形してなるシート状物が
炭酸ガス吸収能力を示し、このシート状物を袋内
に内容物と共に密封するか、或いは前記シート状
物で袋を作成し、その袋内に内容物を密封するこ
とにより上記欠点が解消されることを見い出し、
かかる知見にもとづいて「熱可塑性樹脂に水酸化
カルシウムをブレンドしたものをシート状に成形
してなるシート状物の食品接触面又は両面にポリ
エチレンまたはポリスチレンのヒートシール性と
通気性を有する樹脂層を設けたことを特徴とする
炭酸ガス吸収シート。」を要旨とする第１の発明
を完成した。 As a result of research to eliminate the above-mentioned drawbacks, the present inventor found that a sheet-like material made by molding a blend of thermoplastic resin and calcium hydroxide into a sheet-like material has carbon dioxide absorbing ability. It has been found that the above-mentioned disadvantages can be solved by sealing the bag together with the contents in a bag, or by making a bag from the sheet-like material and sealing the contents inside the bag,
Based on this knowledge, ``a sheet made of a blend of thermoplastic resin and calcium hydroxide is molded into a sheet, with a resin layer having heat sealability and air permeability of polyethylene or polystyrene on the food contact surface or both sides. The first invention has been completed, the gist of which is ``A carbon dioxide gas absorbing sheet characterized by the provision of a carbon dioxide gas absorbing sheet.''
更に本発明者は前記シート状物を発泡シート状
物とすることにより、炭酸ガス吸収能力が更に高
くなることを見い出し、かかる知見にもとづい
て、「発泡性熱可塑性樹脂に水酸化カルシウムを
ブレンドしたものをシート状に成形した後発泡さ
せてなる発泡シート状物の食品接触面又は両面に
ポリエチレンまたはポリスチレンのヒートシール
性と通気性を有する樹脂層を設けたことを特徴と
する炭酸ガス吸収シート。」を要旨とする第２の
発明を完成した。 Furthermore, the present inventor found that by making the sheet-like material into a foamed sheet-like material, the carbon dioxide gas absorption ability was further increased. 1. A carbon dioxide absorbing sheet, characterized in that a foamed sheet material is formed into a sheet shape and then foamed, and a resin layer of polyethylene or polystyrene having heat sealability and air permeability is provided on the food contact surface or both surfaces. ” was completed.
第１の発明に係る炭酸ガス吸収シートによれば
(i)炭酸ガス吸収シートを包装袋内壁に貼着する、
(ii)炭酸ガス吸収シートの一部を包装袋のシール部
に挾持固定させて炭酸ガス吸収シートを包装袋内
部に設ける、(iii)炭酸ガス吸収シートでパウチ、ト
レー等の一部を構成する等の形態で炭酸ガス吸収
機能を有する包装容器を作製することができる。 According to the carbon dioxide absorption sheet according to the first invention
(i) Attach the carbon dioxide absorption sheet to the inner wall of the packaging bag.
(ii) Part of the carbon dioxide absorbing sheet is clamped and fixed to the seal part of the packaging bag to provide the carbon dioxide absorbing sheet inside the packaging bag. (iii) The carbon dioxide absorbing sheet forms part of a pouch, tray, etc. A packaging container having a carbon dioxide absorbing function can be produced in the following form.
又、第１の発明に係る炭酸ガス吸収シートはト
レー、パウチの構成材料としてのみならず、例え
ば、
(i) インナーシールのメンブレンの構成材料
(ii) ブリスターパツクの台紙の構成材料
(iii) ボトルのキヤツプ内の密封材等に適用しうる
ものである。 Further, the carbon dioxide absorbing sheet according to the first invention can be used not only as a constituent material of trays and pouches, but also as a constituent material of (i) a membrane of an inner seal, (ii) a constituent material of a mount of a blister pack, and (iii) a bottle. It can be applied to the sealing material inside the cap of.
次に第２の発明に係る炭酸ガス吸収シートは気
泡を沢山有しガス吸収面積が広いので第１の発明
に係る炭酸ガス吸収シートよりも炭酸ガス吸収機
能がすぐれているもので第１の発明に係る炭酸ガ
ス吸収シートと同様に炭酸ガス吸収機能を有する
包装容器の構成材料、インナーシートのメンブレ
ンの構成材料、ブリスターパツクの台紙の構成材
料、及びボトルのキヤツプ内の密封材等として利
用しうるものである。 Next, the carbon dioxide absorbing sheet according to the second invention has many bubbles and has a large gas absorption area, so it has a better carbon dioxide absorption function than the carbon dioxide absorbing sheet according to the first invention, and the first invention Similar to the carbon dioxide absorbing sheet, it can be used as a constituent material of packaging containers having a carbon dioxide absorbing function, a constituent material of the membrane of an inner sheet, a constituent material of the mount of a blister pack, a sealing material in the cap of a bottle, etc. It is something.
以下、本発明につき図面を参照しながら詳細に
説明する。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図は第１の発明に係る炭酸ガス吸収シート
の一実施態様を示している。 FIG. 1 shows an embodiment of a carbon dioxide absorbing sheet according to the first invention.
熱可塑性樹脂に水酸化カルシウムをブレンドし
たものをシート状に成形してなるシート状物１の
両面にポリエチレン、ポリスチレン等の通気性オ
ーバーコート層２が設けられている。尚、通気性
オーバーコート層は片面のみに設けても良い。 Air permeable overcoat layers 2 made of polyethylene, polystyrene, etc. are provided on both sides of a sheet-like material 1 formed by molding a blend of thermoplastic resin and calcium hydroxide into a sheet-like shape. Note that the breathable overcoat layer may be provided on only one side.
上記実施態様において通気性オーバーコート層
２はシート状物１が一緒に封入する商品に直接に
接触するのを防止するのと表面にヒートシール性
を付与することの為に設けたものである。 In the embodiment described above, the breathable overcoat layer 2 is provided to prevent the sheet-like material 1 from coming into direct contact with the product to be enclosed together, and to provide heat-sealability to the surface.
上記の本発明に係る炭酸ガス吸収シートにおい
て、水酸化カルシウムの含有率は60％以下である
のが望ましく、60％以上になるとシート押出し適
性が悪く、又シートがもろくなり実用に供し得な
い。 In the above carbon dioxide absorbing sheet according to the present invention, the calcium hydroxide content is desirably 60% or less; if it exceeds 60%, the sheet has poor extrusion suitability and becomes brittle, making it unsuitable for practical use.
次に水酸化カルシウムとブレンドする樹脂とし
てはポリエチレン、ポリスチレン、ポリプロピレ
ン、ポリアミド、ポリエステル等の熱可塑性樹脂
を使用することができる。 Next, as the resin to be blended with calcium hydroxide, thermoplastic resins such as polyethylene, polystyrene, polypropylene, polyamide, polyester, etc. can be used.
熱可塑性樹脂は一般的概念からするとガスが通
りにくにと考えられるが、実際にはポリエチレン
の場合の炭酸ガス透過量は厚さ30μのポリエチレ
ンで25000c.c.／m2・24hrs・atm、厚さ300μのポ
リエチレンで2500c.c.／m2・24hrs・atmである。
これは決して少ない数値ではない。ポリスチレン
の炭酸ガス透過量についてもほぼ同様である。ポ
リプロピレン、ポリアミド、ポリエチレンの炭酸
ガス透過量はポリエチレンやポリスチレンよりは
少ないが、いずれにしても炭酸ガスは、これら熱
可塑性樹脂中を透過し、次のような反応を中の水
酸化カルシウムとするのである。 From a general concept, thermoplastic resins are thought to be difficult for gas to pass through, but in reality, the permeation rate of carbon dioxide gas in the case of polyethylene is 25000 c.c./m 2・24hrs・atm, 25000c.c./m 2・24hrs・atm, 2500c.c./m2・24hrs・atm with 300μ polyethylene.
This is by no means a small number. The same holds true for the amount of carbon dioxide gas permeated through polystyrene. The amount of carbon dioxide gas permeated through polypropylene, polyamide, and polyethylene is lower than that of polyethylene and polystyrene, but in any case, carbon dioxide gas permeates through these thermoplastic resins and undergoes the following reaction to form calcium hydroxide inside. be.
Ca（OH）2＋CO2→CaCO3＋H2O
第２図は第２の発明に係る炭酸ガス吸収シート
の一実施態様を示している。 Ca(OH) 2 +CO 2 →CaCO 3 +H 2 O FIG. 2 shows an embodiment of the carbon dioxide absorbing sheet according to the second invention.
発泡性熱可塑性樹脂に水酸化カルシウムをブレ
ンドしたものをシート状に成形した後発泡させて
なる発泡シート状物３の片面にポリエチレン、ポ
リスチレン等の熱接着層４が設けられている。 A thermal adhesive layer 4 made of polyethylene, polystyrene, etc. is provided on one side of a foamed sheet-like material 3, which is formed by molding a blend of foamable thermoplastic resin and calcium hydroxide into a sheet and then foaming it.
上記の本発明に係る炭酸ガス吸収シートにおい
て、発泡性熱可塑性樹脂としてポリスチレン、ポ
リウレタン、ポリオレフイン等に発泡剤を混入し
たものを使用することができる。 In the above carbon dioxide absorbing sheet according to the present invention, polystyrene, polyurethane, polyolefin, etc. mixed with a foaming agent can be used as the foamable thermoplastic resin.
次に実施例及び応用例をあげて本発明につき具
体的に説明する。 Next, the present invention will be specifically explained by giving examples and application examples.
実施例 １
ハイインパクトポリスチレン（三井東圧(株)製、
商品名；トーポレツクス830−55）に水酸化カル
シウム（純正化学製）を20重量％ブレンドしたも
のをＴダイの押出し機で成形して厚さ0.25mmのシ
ートを製造した。得られたシートの重量25ｇに相
当する分につき常温下で炭酸ガス吸収能を調べた
結果、第３図示の如く最高50mlの炭酸ガスを吸着
することが分つた。Example 1 High impact polystyrene (manufactured by Mitsui Toatsu Co., Ltd.,
A blend of 20% by weight of calcium hydroxide (manufactured by Junsei Kagaku Co., Ltd.) with Toporex 830-55 (trade name) was molded using a T-die extruder to produce a sheet with a thickness of 0.25 mm. As a result of examining the carbon dioxide absorption capacity of the obtained sheet at room temperature in an amount corresponding to the weight of 25 g, it was found that a maximum of 50 ml of carbon dioxide gas could be adsorbed as shown in Figure 3.
実施例 ２
低密度ポリエチレン（三井ポリケミカル(株)製、
商品名；ミラソン−11）に水酸化カルシウム（純
正化学製）を20％ブレンドしたものをプレス機を
用い170℃10分間の条件でプレス成形し１ｍ／ｍ
のシートを製造した。得られたシートの重量2.5
ｇに相当する分につき常温下で炭酸ガス吸収能を
調べた結果、第４図示の如く最高69mlの炭酸ガス
を吸着することが分つた。Example 2 Low density polyethylene (manufactured by Mitsui Polychemical Co., Ltd.,
Product name: Mirason-11) is blended with 20% calcium hydroxide (manufactured by Junsei Kagaku) and press-formed using a press machine at 170℃ for 10 minutes to form a 1m/m sheet.
sheets were manufactured. Weight of the resulting sheet 2.5
As a result of examining the carbon dioxide absorption capacity at room temperature for an amount equivalent to 1.5 g, it was found that a maximum of 69 ml of carbon dioxide gas could be adsorbed as shown in Figure 4.
実施例 ３
ハイインパクトポリスチレン三井東圧(株)製、商
品名；トーポレツクス830−55に水酸化カルシウ
ム（純正化学製）を20重量％ブレンドし、発泡剤
として永和化成のFE−308、（４・4′オキシビス
ベンゼンスルホニルヒドラジツト）を添加し、Ｔ
ダイの押出し機で成形して厚さ0.25ｍ／ｍのシー
トを製造した。又、発泡剤の代りに、ハイインパ
クトポリスチレンに吸水させ、押出しても良好な
シートが得られる。得られたシートの重量2.5ｇ
に相当する分につき、常温下で炭酸ガス吸収能を
調べた結果、最高64mlの炭酸ガスを吸着すること
が分つた。Example 3 20% by weight of calcium hydroxide (manufactured by Junsei Kagaku) was blended with high-impact polystyrene manufactured by Mitsui Toatsu Co., Ltd. (trade name: TOPOLEX 830-55), and Eiwa Kasei's FE-308 (4. 4'oxybisbenzenesulfonyl hydroxide) and T
A sheet with a thickness of 0.25 m/m was produced by molding with a die extruder. Also, instead of using a foaming agent, a good sheet can be obtained by making high impact polystyrene absorb water and extruding it. The weight of the obtained sheet is 2.5g
As a result of examining the carbon dioxide absorption capacity at room temperature, it was found that a maximum of 64ml of carbon dioxide gas can be adsorbed.
応用例 １
ポリ塩化ビニリデンコートしたポリアミドフイ
ルムの片面にポリエチレンをラミネートした積層
フイルムよりなる袋に焙煎コーヒー豆100ｇと実
施例１のシート10ｇを入れてから真空包装したも
のと、前記袋に焙煎コーヒー豆100ｇのみを入れ
てから真空包装したものとを作成し、両者を室温
下に保存して経時変化を調べた。その結果、実施
例１のシートを入れない袋は経時的に包装袋の形
状がくずれて膨張し始め１ケ月後にはついに破袋
した。Application example 1 100 g of roasted coffee beans and 10 g of the sheet of Example 1 were placed in a bag made of a laminated film made of a polyamide film coated with polyvinylidene chloride and laminated with polyethylene on one side, and then vacuum-packed. A vacuum-packed bag containing only 100g of coffee beans was prepared, and both were stored at room temperature to examine changes over time. As a result, the bag of Example 1 without the sheet lost its shape and began to expand over time, and finally broke after one month.
一方、実施例１のシートを入れた袋は１ケ月後
も包装袋の形状が維持され、それによつて商品価
値が保たれた。 On the other hand, the bag containing the sheet of Example 1 maintained its packaging bag shape even after one month, thereby maintaining its commercial value.
応用例 ２
ポリエチレンよりなる袋にトマト３個と実施例
２のシート（トマト１個に対し５ｇ）を入れてか
ら真空包装したものと、前記袋にトマト３個のみ
を入れてから真空包装したものとを作成し、両者
を室温下に保在し、経時変化を調べた。その結
果、実施例２のシートを入れない袋は３日で腐敗
した。一方、実施例２のシートを入れた袋は１週
間後も鮮度が保持された。Application example 2: 3 tomatoes and the sheet of Example 2 (5 g for 1 tomato) were placed in a polyethylene bag and then vacuum-packed, and 3 tomatoes were only placed in the bag and then vacuum-packed. Both were stored at room temperature and their changes over time were examined. As a result, the bag without the sheet of Example 2 rotted in 3 days. On the other hand, the bag containing the sheet of Example 2 retained its freshness even after one week.
応用例 ３
きゆり５本を塩ビストレツチフイルムで包装し
たものと、実施例３のシートを入れ同じ様に包装
したものを室温下に保存し、経時変化を調べた。
その結果、実施例３のシートを入れない袋は３日
で腐敗した。一方実施例３のシートを入れた袋は
５日後も鮮度が保持された。Application Example 3 Five pieces of Kiyuri wrapped in chloride stretch film and one wrapped in the same manner with the sheet of Example 3 were stored at room temperature and changes over time were examined.
As a result, the bag without the sheet of Example 3 rotted in 3 days. On the other hand, the bag containing the sheet of Example 3 maintained its freshness even after 5 days.
以上、詳記した通り、本発明に係る炭酸ガス吸
収シートによれば焙煎したコーヒー豆等の炭酸ガ
スを発生する内容物を発生ガスの圧力による包装
容器の変形を生ぜしめることなく包装することが
できる。又、青果物の鮮度を長期間にわたつて保
持することができる。 As described in detail above, the carbon dioxide absorbing sheet of the present invention allows contents that generate carbon dioxide, such as roasted coffee beans, to be packaged without causing deformation of the packaging container due to the pressure of the generated gas. I can do it. Moreover, the freshness of fruits and vegetables can be maintained for a long period of time.
実施例 ４
ポリエチレン（密度0.922）に水酸化カルシウ
ムを20重量％ブレンドしたものをＴダイの押出し
機で成形して厚さ30μのシートＡを製造した。Example 4 A blend of polyethylene (density 0.922) and 20% by weight of calcium hydroxide was molded using a T-die extruder to produce a sheet A having a thickness of 30 μm.
次にこのシートＡの片面に厚さ20μのポリエチ
レンフイルムをさらにシートＡのもう一方の面に
厚さ12μのポリエステルフイルムを接着剤を介し
てラミネートし積層シートを得た。 Next, a polyethylene film with a thickness of 20 μm was laminated on one side of this sheet A, and a polyester film with a thickness of 12 μm was laminated on the other side of the sheet A with an adhesive to obtain a laminated sheet.
この積層シートでポリエチレンフイルムが内面
（食品接触面）となるように袋を作り、中に焙煎
したコーヒー20ｇを入れて、応用例１に示す様な
テストをした結果、１ケ月保存後も炭酸ガスによ
る破袋はなく、商品価値が保たれた。 A bag was made from this laminated sheet so that the polyethylene film was on the inner surface (food contact surface), and 20g of roasted coffee was put inside.As a result of the test shown in Application Example 1, it was found that even after one month of storage, the carbonation remained. There was no bag breakage due to gas, and the product value was maintained.
第１図は第１の発明の炭酸ガス吸収シートの断
面図、第２図は第２の発明の炭酸ガス吸収シート
の断面図、第３図は実施例１のシートの炭酸ガス
吸収特性を示すグラフ、第４図は実施例２のシー
トの炭酸ガス吸収特性を示すグラフ、第５図は実
施例３のシートの炭酸ガス吸収特性を示すグラフ
である。
１……水酸化カルシウム入熱可塑性樹脂のシー
ト状物、２……通気性オーバーコート層、３……
熱接着層。
Fig. 1 is a cross-sectional view of the carbon dioxide absorbing sheet of the first invention, Fig. 2 is a cross-sectional view of the carbon dioxide absorbing sheet of the second invention, and Fig. 3 shows the carbon dioxide absorption characteristics of the sheet of Example 1. 4 is a graph showing the carbon dioxide absorption characteristics of the sheet of Example 2, and FIG. 5 is a graph showing the carbon dioxide absorption characteristics of the sheet of Example 3. 1... Calcium hydroxide-containing thermoplastic resin sheet, 2... Breathable overcoat layer, 3...
Thermal adhesive layer.
Claims (1)
したものをシート状に成形してなるシート状物の
食品接触面又は両面にポリエチレンまたはポリス
チレンのヒートシール性と通気性を有する樹脂層
を設けたことを特徴とする炭酸ガス吸収シート。 ２ 発泡性熱可塑性樹脂に水酸化カルシウムをブ
レンドしたものをシート状に成形した後発泡させ
てなる発泡シート状物の食品接触面又は両面にポ
リエチレンまたはポリスチレンのヒートシール性
と通気性を有する樹脂層を設けたことを特徴とす
る炭酸ガス吸収シート。[Scope of Claims] 1. A resin layer of polyethylene or polystyrene having heat-sealability and air permeability on the food contact surface or both sides of a sheet formed by molding a blend of thermoplastic resin and calcium hydroxide into a sheet. A carbon dioxide absorption sheet characterized by being provided with. 2. A foamed sheet made of a blend of calcium hydroxide and foamable thermoplastic resin that is molded into a sheet and then foamed, with a polyethylene or polystyrene heat-sealable and breathable resin layer on the food-contact surface or both sides. A carbon dioxide absorbing sheet characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13200578A JPS5559825A (en) | 1978-10-26 | 1978-10-26 | Carbon dioxide gas absorbing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13200578A JPS5559825A (en) | 1978-10-26 | 1978-10-26 | Carbon dioxide gas absorbing sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5559825A JPS5559825A (en) | 1980-05-06 |
| JPS6225408B2 true JPS6225408B2 (en) | 1987-06-03 |
Family
ID=15071313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13200578A Granted JPS5559825A (en) | 1978-10-26 | 1978-10-26 | Carbon dioxide gas absorbing sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5559825A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916263A (en) * | 1982-07-19 | 1984-01-27 | Yuasa Battery Co Ltd | Lead battery |
| US4528228A (en) * | 1983-10-11 | 1985-07-09 | Michelsen Packaging Company | Atmosphere control cushioning pad |
| JPH0611101Y2 (en) * | 1987-01-29 | 1994-03-23 | 凸版印刷株式会社 | Deoxygenated / carbon dioxide generating laminate |
| US7235274B2 (en) | 2002-10-16 | 2007-06-26 | General Mills Marketing, Inc. | Dough composition packaged in flexible packaging with carbon dioxide scavenger and method of preparing |
| JP4620155B2 (en) * | 2009-02-09 | 2011-01-26 | ミリポア・コーポレイション | Pure water supply container |
| KR101237439B1 (en) * | 2011-01-12 | 2013-02-26 | 박제영 | Bottle for raw rice wine |
| US8475297B2 (en) | 2011-02-23 | 2013-07-02 | Nike, Inc. | Golf ball with carbon dioxide absorbents |
| US8480516B2 (en) | 2011-02-23 | 2013-07-09 | Nike, Inc. | Methods for encouraging use of greenhouse gas reducing golf balls |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5154083A (en) * | 1974-11-06 | 1976-05-12 | Medekusu Kk | Kyuchakumakuno seizohoho |
| JPS5252276A (en) * | 1975-10-23 | 1977-04-26 | Ebara Corp | Filter for purifying fluid |
-
1978
- 1978-10-26 JP JP13200578A patent/JPS5559825A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5154083A (en) * | 1974-11-06 | 1976-05-12 | Medekusu Kk | Kyuchakumakuno seizohoho |
| JPS5252276A (en) * | 1975-10-23 | 1977-04-26 | Ebara Corp | Filter for purifying fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5559825A (en) | 1980-05-06 |
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