JPS60183373A - Oxygen absorbing sheet - Google Patents
Oxygen absorbing sheetInfo
- Publication number
- JPS60183373A JPS60183373A JP3114784A JP3114784A JPS60183373A JP S60183373 A JPS60183373 A JP S60183373A JP 3114784 A JP3114784 A JP 3114784A JP 3114784 A JP3114784 A JP 3114784A JP S60183373 A JPS60183373 A JP S60183373A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- sheet
- powder
- absorbing sheet
- present
- 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.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明拡酸素吸収シートに関する。[Detailed description of the invention] The present invention relates to an oxygen-expanding and absorbing sheet.
近年、製品の酸化による変質防止、錆、カビ等の発生防
止の有効な手段として脱酸素剤を通気性を有する小袋に
入れて製品とともに酸素不透過性の容器や袋内に密封し
てなる包装形態が広く採用されている。In recent years, as an effective means of preventing deterioration of products due to oxidation and the formation of rust, mold, etc., packaging in which an oxygen absorber is placed in a breathable pouch and sealed together with the product in an oxygen-impermeable container or bag has become popular. format is widely adopted.
しかし表から従来のこの種脱酸素刺入り小袋は、該小袋
とともに包装された製品の付属品と誤解され易く、誤っ
て小袋を開封したことにより小袋内の脱酸素剤が飛散し
て思わぬ事故が発生したシ、製品が食品の場合には特に
幼児等が脱酸素剤入り小袋を誤食する危険がある等の欠
点を有していた。However, as shown in the table above, this type of conventional oxygen absorbing pouch with thorns is easily misunderstood as an accessory for the product packaged with the pouch, and if the pouch is opened by mistake, the oxygen absorber inside the pouch may scatter, causing an unexpected accident. However, when the product is a food product, there is a risk that the sachet containing the oxygen absorber may be accidentally ingested by young children.
また該小袋を錆発生防止の目的で金属製品とともに包装
して用いると、運搬等の際に金属製品が小袋に触れて該
小袋が破損し、脱酸素剤が飛散して製品を汚染し、製品
価値の低下をきたす等の問題も有していた。しかも、従
来は脱酸素剤を単に小袋内に入れて封をしただけのもの
にすぎないため、小袋内で脱酸素剤が一方向して片寄り
、脱酸素剤と空気との接触面積が減少する結果、酸素吸
収効率が低下し、このため必要量以上の脱酸素剤を使用
しなければならず、酸素吸収効率および経済性の面でも
欠点を有していた。Furthermore, if the pouch is packaged with a metal product for the purpose of preventing rust, the pouch will be damaged when the metal product comes into contact with the pouch during transportation, etc., and the oxygen scavenger will scatter and contaminate the product. It also had problems such as a decline in value. Moreover, in the past, the oxygen absorber was simply placed in a pouch and sealed, so the oxygen absorber was biased in one direction within the pouch, reducing the contact area between the oxygen absorber and the air. As a result, the oxygen absorption efficiency decreases, and therefore, it is necessary to use a larger amount of oxygen scavenger than necessary, which also has disadvantages in terms of oxygen absorption efficiency and economic efficiency.
本発明は上記の欠点に鑑みなされたもので、製品の付属
品として誤解されることによる事故発生や脱酸素剤の飛
散の虞れがきわめて少なく１．シかも酸素吸収効率に優
れた酸素吸収シートを提供することを目的とする。The present invention was developed in view of the above-mentioned drawbacks, and there is extremely little risk of accidents or scattering of the oxygen absorber due to misinterpretation as an accessory to the product.1. Another object of the present invention is to provide an oxygen absorbing sheet with excellent oxygen absorption efficiency.
即ち本発明は、連続気泡構造を有する発泡ウレタンシー
トの気泡内に脱酸素剤粉末が埋入されて々ることを特徴
とする酸素吸収シートを要旨とする。That is, the gist of the present invention is an oxygen absorbing sheet characterized in that oxygen scavenger powder is embedded in the cells of a foamed urethane sheet having an open cell structure.
以下本発明の一実施例を図面に基き説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の酸素吸収シート１の縦断面を示し、２
は連続気泡構造を有する軟質の発泡ウレタンシート、３
は該ウレタンシート２を構成するウレタン樹脂のセル壁
、４は気泡空隙部、５は気泡内に埋入された脱酸素剤粉
末である。FIG. 1 shows a longitudinal section of an oxygen absorbing sheet 1 of the present invention, and 2
is a soft urethane foam sheet with an open cell structure, 3
1 is a cell wall of the urethane resin constituting the urethane sheet 2, 4 is a cell gap, and 5 is an oxygen scavenger powder embedded in the cells.
上記脱酸素剤粉末５としては、エージレス（三菱ガス化
学）、バイタロン（東亜合成）、０ＲＣ（ダイヤケミフ
ァ）、ケブロン（大成化研）、セキュール（日本曹達）
、サンソレス（博洋）等の粉末が挙げられる。Examples of the oxygen scavenger powder 5 include Ageless (Mitsubishi Gas Chemical), Vitalon (Toagosei), 0RC (Diachemifa), Kevron (Taisei Kaken), and Sequel (Nippon Soda).
, Sansoles (Hiroyo) and other powders.
本発明の酸素吸収シート１は例えば、ウレタンプレポリ
マーに脱酸素剤粉末、発泡剤、触媒および必要に応じて
気泡づイズ調節剤と【２てシリコーン界面活性剤等の界
面活性剤を混合してシート状に押出し発泡せしめるか、
ブロック状に発泡せしめた後、該ブロック状発泡体をシ
ート状にスライスして得られる。The oxygen absorbing sheet 1 of the present invention is made by mixing, for example, a urethane prepolymer with an oxygen scavenger powder, a blowing agent, a catalyst, and, if necessary, a bubble size control agent and a surfactant such as a silicone surfactant. Extrusion and foaming into a sheet form, or
It is obtained by foaming into blocks and then slicing the block-like foam into sheets.
上記ウレタンプレポリマーとしては、アジピン酸−グリ
セリン系のポリエステルポリオールまたはポリプロピレ
ングリコール等のポリエーテルポリオールと２．４−１
たけ２．６−）リレンジイソシアネート（ＴＤＩ）等の
ポリイソシアネートとの反応生成物が挙げられる。発泡
剤としては水やトリクロロフロロメタン、トリクロロト
リフロロエタン、メチレンクロライド等の低沸点有機化
合物が用いられ、触媒としては第３アミンや有機スズ化
合物等が用いられる。The above-mentioned urethane prepolymer includes adipic acid-glycerin-based polyester polyol or polyether polyol such as polypropylene glycol, and 2.4-1
Examples include reaction products with polyisocyanates such as 2.6-) lylene diisocyanate (TDI). As the blowing agent, water or a low-boiling organic compound such as trichlorofluoromethane, trichlorotrifluoroethane, or methylene chloride is used, and as a catalyst, a tertiary amine or an organic tin compound is used.
本発明において用いられる脱酸素剤粉末５は一般に粒径
５μ〜５０μ程度を有するが、第１図に示す如く脱酸素
剤粉末５の粒径が気泡空隙部４の径より大きい場合、該
脱酸素剤粉末５がセル壁３をＳ成するウレタン樹脂によ
ってより確実に固定され脱酸素剤粉末５の離脱を完全に
防止できるため脱酸素剤粉末５として粒径５μ〜５０μ
程度のものを用い、発泡ウレタンシート２の発泡倍率を
１．０〜３．０倍程度、好ましくは１５〜２．０倍とし
て気泡空隙部４を緻密ガ構造とすることが好ましい。The oxygen scavenger powder 5 used in the present invention generally has a particle size of about 5 μm to 50 μm, but as shown in FIG. Since the agent powder 5 is fixed more reliably by the urethane resin forming the cell wall 3 and the separation of the oxygen absorber powder 5 can be completely prevented, the particle size of the oxygen absorber powder 5 is 5μ to 50μ.
It is preferable that the foaming ratio of the foamed urethane sheet 2 is set to about 1.0 to 3.0 times, preferably about 15 to 2.0 times, so that the cell voids 4 have a dense gas structure.
また脱酸素剤粉末器のウレタンプレポリマーに対する添
加量はウレタンプレポリマー１００重量（）
部に対して２０〜４００重量部が好ましく、４００重量
部以上添加すると脱酸素剤粉末５が重なυ合って埋入せ
しめられ、脱酸素剤粉末器の添加量に比して酸素吸収効
果の向上がさほど図れず、不経済であるとともに成形性
、作業性が低下する。The amount added to the urethane prepolymer in the oxygen absorber powder is preferably 20 to 400 parts by weight per 100 parts by weight of the urethane prepolymer, and if more than 400 parts by weight is added, the oxygen absorber powder 5 will overlap. The oxygen absorbing effect is not improved much compared to the amount added in the oxygen scavenger powder, which is not only uneconomical but also reduces moldability and workability.
本発明の酸素吸収シート１は厚さ０５〜３顛、面積２０
ｃ１１以上の大きさにすることが好ましく、そのままで
製品とともに酸素不透過性の容器または袋等内に密封包
装して用いることもできるが、第２図に示すように本発
明の酸素吸収シート１の両面に（ｔたは特に図示しない
が片面に）、脱酸素剤粉末を含有しない連続気泡構造を
有する発泡ウレタンシートや通気性の紙等の通気性シー
ト６を積層して積層シート７として用いることもできる
。The oxygen absorbing sheet 1 of the present invention has a thickness of 05 to 3 mm and an area of 20 mm.
The oxygen absorbing sheet 1 of the present invention is preferably made to have a size of c11 or more, and can be used as is by being sealed and packaged together with the product in an oxygen-impermeable container or bag, but as shown in FIG. A breathable sheet 6 such as a foamed urethane sheet having an open cell structure that does not contain oxygen scavenger powder or breathable paper is laminated on both sides (or on one side, not particularly shown), and used as a laminated sheet 7. You can also do that.
また本発明の酸素吸収シート１または該シート１を用い
た積層シート７は四角形状、三角形状、円形状等任意の
形状として用いることができる。Further, the oxygen absorbing sheet 1 of the present invention or the laminated sheet 7 using the sheet 1 can be used in any shape such as a rectangular shape, a triangular shape, or a circular shape.
以上説明したように本発明の酸素吸収シートは連続気泡
構造を有する発泡ウレタンシートの気泡内に脱酸素剤粉
末を埋入せしめてなる構成を有す（）
るため、製品の付属品として誤解され酸く、しかも従来
の脱酸素剤入り小袋のように開封されたシ、製品との接
触によって小袋が破損したりして脱酸素剤粉末が飛散す
る等の虞れはない。また本発明の酸素吸収シートでは脱
酸素剤粉末が一方向に片寄って脱酸素剤粉末と空気との
接触面積を減少させる虞れがないから連続した気泡空隙
部を通して脱酸素剤粉末器々の表面に空気が有効に接し
、優れた酸素吸収効果が発揮される。更に本発明酸素吸
収シートは優れた脱酸素効果とともに発泡ウレタンシー
トによる製品の緩衝性にも優れる等積々の効果を有する
ものである。As explained above, the oxygen absorbing sheet of the present invention has a structure in which oxygen absorbing powder is embedded in the cells of a foamed urethane sheet having an open cell structure (), so it may be misunderstood as an accessory to a product. It is acidic, and there is no risk of the oxygen absorber powder scattering due to the sachet being damaged or coming into contact with the product when opened, unlike conventional oxygen absorber sachets. In addition, in the oxygen absorbing sheet of the present invention, there is no risk that the oxygen absorbing powder is biased in one direction and reducing the contact area between the oxygen absorbing powder and the air, so the oxygen absorbing powder passes through the continuous air voids to the surfaces of various devices. The air comes in effective contact with the air, and an excellent oxygen absorption effect is exhibited. Furthermore, the oxygen-absorbing sheet of the present invention has a number of effects such as excellent deoxidizing effect and excellent cushioning properties of the product due to the foamed urethane sheet.
以下に具体的実施例を挙げて本発明を更に詳細に説明す
る。The present invention will be explained in more detail by giving specific examples below.
実施例
↓
１０５１．５重量部（以上いずれも東洋ポリマー■）お
よび平均粒径３０μの脱酸素剤粉末（エージレス：三菱
ガス化学）２２０重量部を混練（７、シート状に押出し
て発泡せしめ、発泡倍率１５倍の発泡シートを得た。こ
の発泡シートを７０隨Ｘ １００ ｍ＋ｗに切り、酸素
不透過性のフィルム（ポリ塩化ビニリデンコーティング
ナイロン／ポリエチレン６０μの積層フィルム）よりな
る１ ００＋ｗｍＸ １３０ｖｙ の袋内にエージレス
アイ（酸素インジケーター：三菱ガス化学）とともに密
封包装したところ２４時間後に社エージレスアイが酸素
濃度０１チ以下を示すピンク色を呈していた。Example ↓ Knead 1051.5 parts by weight (all of the above are Toyo Polymer ■) and 220 parts by weight of oxygen scavenger powder with an average particle size of 30μ (Ageless: Mitsubishi Gas Chemical) (7. Extrude into a sheet shape and foam. A foamed sheet with a magnification of 15 times was obtained.This foamed sheet was cut into 70cm x 100m+w and placed in a 100+wm x 130vy bag made of oxygen-impermeable film (polyvinylidene chloride coated nylon/polyethylene 60μ laminated film). When it was sealed and packaged together with Ageless Eye (oxygen indicator: Mitsubishi Gas Chemical), Ageless Eye had a pink color indicating an oxygen concentration of 0.1 inch or less 24 hours later.
またこの袋内の空気中の酸素濃度の経時変化を東しジル
コニア式酸素メーター（ＬＣ−７００−／Ｆ型：東レし
ンジニアリング）で測定したところ２４時間以内ですべ
て０１チ以下の酸素濃度となることが確認された。In addition, when we measured the change over time in the oxygen concentration in the air inside this bag using a zirconia oxygen meter (LC-700-/F model: Toray Shin Engineering), all oxygen concentrations were below 0.1% within 24 hours. It was confirmed that
図面は本発明の一実施例を示すもので第１図は本発明酸
素吸収シートの縦断面図、第２図は本発明酸素吸収シー
トの両面に通気性シートを積層し（）
た積層シートの縦断面図である。
１・・・酸素吸収シート、２・・・発泡ウレタンシート
、３・・・セル壁、４・・・気泡空隙部、５・・・脱酸
素剤粉末
特許出願人 大日本印刷株式会社
（８）The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view of the oxygen-absorbing sheet of the present invention, and FIG. 2 is a laminate sheet in which breathable sheets are laminated on both sides of the oxygen-absorbing sheet of the present invention. FIG. DESCRIPTION OF SYMBOLS 1... Oxygen absorbing sheet, 2... Foamed urethane sheet, 3... Cell wall, 4... Cell gap, 5... Oxygen scavenger powder patent applicant Dai Nippon Printing Co., Ltd. (8)
Claims (1)
酸素剤粉末が埋入されてなることを特徴とする酸素吸収
シート。An oxygen absorbing sheet characterized by having oxygen scavenger powder embedded in the cells of a foamed urethane sheet having an open cell structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3114784A JPS60183373A (en) | 1984-02-21 | 1984-02-21 | Oxygen absorbing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3114784A JPS60183373A (en) | 1984-02-21 | 1984-02-21 | Oxygen absorbing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60183373A true JPS60183373A (en) | 1985-09-18 |
Family
ID=12323319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3114784A Pending JPS60183373A (en) | 1984-02-21 | 1984-02-21 | Oxygen absorbing sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60183373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6293069U (en) * | 1985-11-30 | 1987-06-13 | ||
| JPH04109133U (en) * | 1991-03-06 | 1992-09-21 | 忠雄 宮坂 | Cushioning material |
-
1984
- 1984-02-21 JP JP3114784A patent/JPS60183373A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6293069U (en) * | 1985-11-30 | 1987-06-13 | ||
| JPH04109133U (en) * | 1991-03-06 | 1992-09-21 | 忠雄 宮坂 | Cushioning material |
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