JPS62168878A - Cushioning packaging material made of biaxial-oriented polystyrene film - Google Patents
Cushioning packaging material made of biaxial-oriented polystyrene filmInfo
- Publication number
- JPS62168878A JPS62168878A JP61005001A JP500186A JPS62168878A JP S62168878 A JPS62168878 A JP S62168878A JP 61005001 A JP61005001 A JP 61005001A JP 500186 A JP500186 A JP 500186A JP S62168878 A JPS62168878 A JP S62168878A
- Authority
- JP
- Japan
- Prior art keywords
- packaging material
- film
- polystyrene film
- cushioning
- heat
- 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
- 239000005022 packaging material Substances 0.000 title claims description 16
- 239000004798 oriented polystyrene Substances 0.000 title claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 12
- 229920002223 polystyrene Polymers 0.000 claims description 12
- 239000004925 Acrylic resin Substances 0.000 claims description 10
- 229920000178 Acrylic resin Polymers 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Buffer Packaging (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
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】
（産業上の利用分野）
本発明は、物品を保３１１１衝することのできる包装材
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a packaging material capable of protecting articles.
（従来波ｉネ１）
物品を保護、緩衝するために、ポリエチレンなどの軟質
フィルムに、多数の気泡を設けたフィルムが用いられて
いる。これらの気泡を有するフィルムは、例えば特公昭
４２−２６５４０号公報のような方法で製造することが
できる。(Conventional Wave 1) In order to protect and cushion articles, a film in which a large number of air bubbles are provided in a flexible film such as polyethylene is used. These bubble-containing films can be produced, for example, by the method disclosed in Japanese Patent Publication No. 42-26540.
（発明が解決しようとする問題点）
この種のフィルムによる物品の保護、緩衝の効果は、気
泡の圧縮特性に依存するので、圧縮方向の変形を太き（
加えようとすると、応力が急に太き（なり、緩衝効果が
限られてくる欠点があった。(Problem to be Solved by the Invention) The protection and cushioning effect of this type of film on articles depends on the compression characteristics of the bubbles, so the deformation in the compression direction is increased (
If you try to apply it, the stress will suddenly increase, which has the disadvantage that the buffering effect will be limited.
比較的低い応力で大きな変形をあたえて、大きな緩衝効
果を得ようとすると、包装材の厚みを太き（とることを
要し、これは包装材全体の容積が大きくなる不利があっ
た。また、他方、ポリスチレンの二軸延伸フィルムを、
物品の包装用の袋として用いる試みはあったが、このフ
ィルムは透明で光沢があり剛性に冨む反面、さけ易く、
特に袋に加工した場合に、そのシール部分のふちが破れ
易い欠点があった。In order to obtain a large cushioning effect by applying a large deformation with a relatively low stress, it is necessary to increase the thickness of the packaging material, which has the disadvantage of increasing the volume of the entire packaging material. , on the other hand, a biaxially stretched polystyrene film,
There have been attempts to use it as bags for packaging goods, but while this film is transparent, glossy, and highly rigid, it is also easy to avoid.
In particular, when processed into bags, the edges of the seals tend to tear easily.
（問題点を解決するための手段）
本発明は、比較的低い圧縮応力で大きな変型率を示し、
物品を保護緩衝できる包装材を得ること、また、ポリス
チレンの二軸延伸フィルムの袋の、シール部分の破れ易
さを改良し、実用に適する保護緩衝用の袋を得ることを
目的とする。(Means for solving the problems) The present invention exhibits a large deformation rate with relatively low compressive stress,
The purpose of the present invention is to obtain a packaging material capable of protecting and cushioning articles, and to improve the ease with which the sealed portion of a bag made of biaxially stretched polystyrene film is torn, thereby obtaining a bag for protection and cushioning that is suitable for practical use.
上記の目的は、以下に説明する手段により達成すること
ができる。即ち、ポリスチレンの二軸延伸フィルムを選
択使用し、これに熱加工により多数の凹凸をつけたフィ
ルムを用意する。一般には、凹凸の型をつけた加熱エン
ボスローラーでフィルムを加工するのがよい。また、他
の手段としては、細かい凹凸型あるいは金銅を型として
、通常の真空成型機あるいは加圧成型機によって、この
ようなフィルムを得ることもできる。凹凸は、フィルム
全面に密に配置しなければならない。凹凸の大きさは、
数鰭乃至２０關程度がよいが、凸から凸の距離であられ
して、５１１乃至１０鶴程度が最もよい。凹凸の深さは
、少くともＱ、５ｍｓ以上、通常は１龍乃至５１程度が
よい。このような、凹凸を付けた二軸延伸ポリスチレン
フィルムを用いて物品を包むことにより、比較的小さい
容積で、保護緩衝の効果のよい包装体をえることができ
る。この材料を用いて物品を保護緩衝するために、凹凸
加工をした二軸延伸ポリスチレンフィルムを、あらかじ
めヒートシール加工により製袋及び製筒しておくのが便
利である。この袋及び筒は、凹凸加工をしてない単なる
二輪延伸ポリスチレンフィルムをヒートシールした袋に
比べて、物品を緩衝する効果があるばかりでなく、袋の
ヒートシール部分が取扱中に破損することがほとんどな
い。袋のヒートシールを行う場合に、過度の加熱をさけ
るよう、特に注意しなければならない。過度の加熱によ
って、シール部分は取扱中に破袋し易くなる。The above object can be achieved by the means described below. That is, a biaxially stretched polystyrene film is selectively used, and a film is prepared in which a large number of irregularities are formed by heat processing. Generally, it is best to process the film using a heated embossing roller with a pattern of protrusions and recesses. Alternatively, such a film can be obtained by using a fine concavo-convex mold or a gold-bronze mold and using a normal vacuum forming machine or pressure forming machine. The irregularities must be densely arranged over the entire surface of the film. The size of the unevenness is
A distance of several to 20 fins is best, but the best distance is 511 to 10 fins. The depth of the unevenness is preferably at least Q, 5 ms or more, and usually about 1 to 51 ms. By wrapping an article with such a biaxially oriented polystyrene film having irregularities, it is possible to obtain a package having a relatively small volume and having a good protective and cushioning effect. In order to protect and cushion articles using this material, it is convenient to use a textured biaxially oriented polystyrene film to form bags and cylinders in advance by heat sealing. Compared to a bag made by simply heat-sealing two-wheel stretched polystyrene film without texture, this bag and tube not only have the effect of cushioning the goods, but also prevent the heat-sealed part of the bag from being damaged during handling. rare. Particular care must be taken to avoid excessive heating when heat sealing the bags. Excessive heating will make the sealed portion more susceptible to tearing during handling.
フィルムのシート面に、二次転移温度が６０℃以下のア
クリル系樹脂を塗布すると、より低度の加熱で、即ち、
より低温、短時間の加熱で、ヒートシールができるよう
になり、その結果、ヒートシール部分での破損を更に少
くすることができる。When an acrylic resin with a secondary transition temperature of 60°C or lower is applied to the sheet surface of the film, it can be heated at a lower degree, that is,
Heat-sealing can now be performed by heating at a lower temperature and for a shorter time, and as a result, damage at the heat-sealed portion can be further reduced.
この目的に用いるアクリル系樹脂としては、アクリル酸
、またはメタクリル酸のアルキルエステル類の共重合体
で、二次転移温度が６０℃以下のものを選択使用し、こ
れを溶液として塗布乾燥する方法がとり得る。アクリル
樹脂は、低級アルコールとケトン又はエステル又は芳香
族系の溶剤との混合液に溶解して塗布できるが、この際
フィルムを侵しがちであるから、なるべくアルコールリ
ッチな組成の混合溶剤に溶解し塗布するのがよい。As the acrylic resin used for this purpose, a copolymer of alkyl esters of acrylic acid or methacrylic acid with a secondary transition temperature of 60°C or less is selected and used, and a method of applying and drying this as a solution is recommended. Possible. Acrylic resin can be applied by dissolving it in a mixed solution of a lower alcohol and a ketone, ester, or aromatic solvent, but this tends to attack the film, so it is best to dissolve it in a mixed solvent with an alcohol-rich composition before applying. It is better to do so.
二次転移温度が比較的低いアクリル系樹脂の塗膜は、ブ
ロッキングを起すことがあるので、そのような場合には
、微粉状シリカ、炭酸カルシウムなどの無機物や、ポリ
エチレン系その他のワックス類を配合して、ブロッキン
グを防止し表面のすべりを改良することができる。また
、アクリル系樹脂を塗布するさいに、着色、帯電防止、
その他の他の目的のコーティングをあわせて行うことも
できる。Acrylic resin coatings, which have a relatively low secondary transition temperature, may cause blocking, so in such cases, inorganic substances such as finely powdered silica or calcium carbonate, or polyethylene-based or other waxes may be added. This prevents blocking and improves surface slippage. In addition, when applying acrylic resin, coloring, antistatic,
Coatings for other purposes may also be applied.
熱加工により多数の凹凸をつけた二軸延伸ポリスチレン
フィルムは、気泡を多数配して緩衝性をもたせたシート
に比べて、圧縮変形率を大きくした場合の圧縮の応力の
上昇割合が少さいので、応力をあたえることの小さい比
較的軽い物体の場合に、より薄いシートを用いて物品を
保ｉ！緩衝することができるが、これは、気泡中の気体
を圧縮するのではな（、剛性の大きな二軸延伸ポリスチ
レンフィルムの凹凸を変形させて、主としてフィルムの
曲げ変形により発生する応力によって、圧縮応力を発生
する為であろうと考えられる。上記の多数の凹凸を有す
る二輪延伸ポリスチレンフィルムで作られた袋は、この
中に物品を入れて保護緩衝するのに適し、また物品を入
れて取扱う際に、凹凸なしの二輪延伸ポリエチレンフイ
ムの袋に比べて、シール部分での破損が少い効果がある
が、これは、凹凸が緩衝作用を有して外力を緩衝するほ
かに、外力を分散してシール部分の特定の場所に外力が
集中するのを防止するからであろうと考えられる。また
、二軸延伸ポリエチレンフイムの表面に、二次転移温度
が６０ ’ｃ以下のアクリル系樹脂をコートしたフィル
ムによる凹凸加工フィルムは、より低度の加熱処理によ
りヒートシールができるので、シール部分での破損を更
に少（する効果がある。これは、加熱処理がより少くて
すむ結果、二輪延伸ポリエチレンフイムの配向もどりに
よる機械的物性の低下が、より少くなるためであろうと
考えられる。A biaxially oriented polystyrene film that has been heat-processed to have many irregularities has a smaller rate of increase in compressive stress when the compressive deformation rate is increased, compared to a sheet that has cushioning properties by arranging many bubbles. In the case of relatively light objects that do not apply much stress, thinner sheets are used to hold the object. However, this method does not compress the gas in the bubbles (it deforms the unevenness of the biaxially stretched polystyrene film, which has high rigidity, and reduces compressive stress mainly due to stress generated by bending deformation of the film). It is thought that this is because bags made of two-wheeled stretched polystyrene film with many irregularities described above are suitable for placing items in them for protection and cushioning, and are also suitable for protecting and cushioning items when handling them. Compared to bags made of two-wheeled stretched polyethylene film without unevenness, it has the effect of reducing damage at the sealing part. This is thought to be because it prevents external force from concentrating on a specific location of the sealing part.Also, the surface of the biaxially stretched polyethylene film is coated with an acrylic resin with a secondary transition temperature of 60'C or less. The textured film can be heat-sealed with a lower degree of heat treatment, which has the effect of further reducing damage at the sealing area. This is thought to be due to the fact that the decrease in mechanical properties due to the reorientation of the film is reduced.
（実施例）
厚みが５．０ ミクロンの二軸延伸ポリスチレンフィル
ムを熱エンボスローラーにより加工して、山と山との間
隔が６ミリで山頂と谷底の深さ、即ち見かけ上の厚みが
１．４ ミリの、凹凸を全面につけた緩衝包装材を得た
。この緩衝包装材の厚み方向の圧縮応力とひずみを測定
して、第１図の結果を得た。別に、市販の、多数の気泡
を有する緩衝用ポリエチレンフィルムの、厚み方向の圧
縮応力とひずみを測定して、第２図の結果を得た。第１
図の結果に見られる通り、このエンボスフィルムは、厚
み方向にはｙ′２０％から６０％の間で、応力の増加率
が極く小さく、この間での緩衝特性が良いことを示して
いる。ひずみ２０％に対する応力と、ひずみ６０％に対
する応力の倍率は、１．４１倍であった。これを、気泡
を有する緩衝用ポリスチレンフイムの、２０％に対する
応力と、６０％に対する応力の倍率、６．５倍と比較す
ると１／４．６である。このエンボスシートは、圧縮ひ
ずみ６０％程度までの°比較的小さい圧縮応力をあたえ
るような物品の緩衝に適していることがわかった。この
エンボスしたフィルムをカットして、１枚が１５０ ｇ
ｒの陶器の皿を包み、この２０枚をダンボールで外装し
て、トラック便により東京と鈴鹿土間往復の輸送試験を
行ったが、異常は生じなかった。(Example) A biaxially stretched polystyrene film with a thickness of 5.0 microns was processed using a hot embossing roller, and the distance between the peaks was 6 mm, and the depth of the peaks and valleys, that is, the apparent thickness was 1.5 mm. A cushioning packaging material having 4 mm of unevenness formed on the entire surface was obtained. The compressive stress and strain in the thickness direction of this buffer packaging material were measured, and the results shown in FIG. 1 were obtained. Separately, the compressive stress and strain in the thickness direction of a commercially available buffer polyethylene film having a large number of bubbles were measured, and the results shown in FIG. 2 were obtained. 1st
As can be seen from the results in the figure, this embossed film has a very small rate of increase in stress between 20% and 60% y' in the thickness direction, indicating that it has good buffering properties in this range. The magnification of stress for 20% strain and stress for 60% strain was 1.41 times. This is 1/4.6 when compared with the stress magnification of 20% and 60% stress, which is 6.5 times, for a buffer polystyrene film having bubbles. It has been found that this embossed sheet is suitable for cushioning articles to which relatively small compressive stress of up to about 60% compressive strain is applied. Cut this embossed film and each piece weighs 150g.
We wrapped up 20 pieces of ceramic plates, wrapped them in cardboard, and carried out a round-trip transportation test between Tokyo and Suzuka Doma by truck, but no abnormalities were found.
実施例２
厚みが５０ミクロンの二軸延伸ポリスチレンフィルムの
反面をコロナ放電処理し、その上に、部分けん化ＥＵＡ
をバインダーとし導電性カーボンブラックを含む水とア
ルコールの混合溶剤を用いた導電性塗料を極めて薄く塗
、布乾燥し、その上に重ねて、二次転移温度２５℃のア
クリル系樹脂に、小量のポリエチレンワックスを配合し
た、トルエンとイソプロパツールの混合溶剤を用いた塗
料を塗布乾燥して、透視可能で、表面導電性を有し、ヒ
ートシールが容易で、帯電防止性がある塗膜をつくった
。このフィルムを実施例１と同様に熱エンボスローラー
により加工して、実施例１と同様の凹凸を全面に付けた
緩衝包装材を得た。このフィルムを用いて、コート面を
内側にして、ヒートシールして袋をつくった。袋の寸法
は、８ｃＡ×１０ｃｍとし、縁から５鶴の所に、１．５
０巾のヒートシールを行った。この袋の中に、直径１５
ｔｍ、重さ６ｇｒの、外面を合成樹脂で被覆した球状の
錘り２個を入れて、ヒートシールして封入した。この袋
１０個を１辺１０ｃＩ１１の正方形の断面を有する角筒
状の段ボール製の容器に入れ、この角筒に更に円筒状の
カバを付けて固定し、ボールミル上で、７１ＰＰＭで回
転させた。四角筒内の試料は、角筒の１回転毎に、４回
の衝撃を受けることになる。Example 2 The other side of a biaxially oriented polystyrene film with a thickness of 50 microns was treated with corona discharge, and partially saponified EUA was applied thereon.
Apply a very thin layer of conductive paint using a mixed solvent of water and alcohol containing conductive carbon black as a binder, dry it on a cloth, layer it on top, and apply a small amount of it to an acrylic resin with a secondary transition temperature of 25°C. By applying a paint using a mixed solvent of toluene and isopropanol containing polyethylene wax and drying it, a coating film that is transparent, has surface conductivity, is easy to heat seal, and has antistatic properties is created. I made it. This film was processed using a hot embossing roller in the same manner as in Example 1 to obtain a cushioning packaging material with the same unevenness as in Example 1 on the entire surface. Using this film, a bag was made by heat sealing with the coated side facing inside. The dimensions of the bag are 8cA x 10cm, and 1.5cm is placed 5 cranes from the edge.
0 width heat sealing was performed. In this bag, diameter 15
Two spherical weights, each having a weight of 6 gr and whose outer surfaces were coated with synthetic resin, were placed in the container and sealed by heat sealing. These 10 bags were placed in a rectangular tube-shaped cardboard container having a square cross section of 10 cI11 on each side, and a cylindrical cover was further attached and fixed to the rectangular tube, and the container was rotated at 71 PPM on a ball mill. The sample inside the rectangular tube will receive four impacts for each rotation of the rectangular tube.
３時間後、即ち、３ Ｘ６０Ｘ７１Ｘ４ ＝５１１２０
回の衝撃後に、取り出して検査したが、破袋したものは
なく、この袋が、実用的な輸送等でくり返される軽度の
衝撃に耐えることが示された。比較のために、本実施例
のコート処理をしただけで、エンボス加工をしていない
フィルムで、同様の袋をつくって同様のテストをつくり
く返した。３時間後に４袋、即ち４０％の破袋が生じた
。また、コート処理をしていない、基材フィルムで、同
様の製袋を行って、試験をくり返した。３時間後に、６
袋、即ち６０％の破袋が生じた。凹凸のエンボス加工が
、破袋の防止にも有効であることが示された。After 3 hours, i.e. 3 x 60 x 71 x 4 = 51120
After the first impact, the bags were taken out and inspected, but none of the bags were torn, indicating that the bags could withstand repeated mild impacts during practical transportation. For comparison, a similar bag was made using a film that was only coated as in this example but was not embossed, and the same test was repeated. After 3 hours, 4 bags, or 40% bag breakage occurred. In addition, the test was repeated using a base film that had not been coated and making the same bag. 3 hours later, 6
Bag breakage occurred, ie 60%. Embossed patterns were also shown to be effective in preventing bag breakage.
（発明の効果）
本発明の多数の凹凸を熱加工により設けた二軸延伸ポリ
スチレンフィルムからなる緩衝包装材は、多数の凹凸の
変形により圧縮応力に応じた大きな変位が生じる為に、
衝撃からよく緩衝され、基材として、剛性が大きく凹凸
加工が容易な二軸延伸ポリスチレンフィルムを選択使用
した事により、単位面積当りの圧縮応力が大きくとれ、
工業的な生産に適し、特にこれを袋状としてもちいるの
に適し、また、二次転移温度が６０℃以下のアクリル系
樹脂を表面にコートしたものでは、ヒートシ−ルが容易
でヒートシール部の強度低下が少なく、同時に帯電防止
や着色その他の機能を付加することも可能であって、物
品の輸送保管保護等に有用な効果を有するものである。(Effects of the Invention) The shock-absorbing packaging material of the present invention, which is made of a biaxially stretched polystyrene film on which a large number of unevennesses are formed by heat processing, has a large displacement due to the deformation of the large number of unevennesses due to compressive stress.
By selecting and using biaxially oriented polystyrene film as the base material, which is well buffered against impact and has high rigidity and can be easily processed into irregularities, a large compressive stress per unit area can be obtained.
Suitable for industrial production, especially suitable for use as a bag, and coated with acrylic resin with a secondary transition temperature of 60°C or less, it is easy to heat seal and the heat seal part is easy to heat seal. There is little decrease in strength, and at the same time, it is possible to add antistatic, coloring, and other functions, and it has useful effects for transporting, storing, and protecting articles.
第１図は実施例１により製造した本発明の緩衝包装材の
圧縮応力と圧縮ひずみとの関係を示したグラフである。
第２図は、気泡ポリエチレンフィルムの圧縮応力と圧縮
ひずみとの関係をしめしたグラフである。
特許出願人 旭化成工業株式会社
第２図
圧縮μす昭γ・
手続補正書
昭和６１年 ４月 Ｑ日
特許庁長官 宇 賀 道 部 殿
■、事件の表示
昭和６１年特許願第５００１号
２、発明の名称
二輪延伸ポリスチレンフィルムでできた緩衝包装材
３、補正をする者
事件との関係 特許出願人
大阪府大阪市北区堂島浜１丁目２番６号４、補正の対象
明細書の「発明の詳細な説明」の欄
５、補正の内容
別紙の通り
補正の内容
１）明細書第３頁第１５行の「金鋼を型として、」を「
金網を型として、」に訂正する。
２＋ 同第４頁第１７行の「フィルムのシート面に、
」を「フィルムのシール面に、」に訂正する。
′３）同第７頁第９行の「厚みが５．０ミクロン」を「
厚みが５０ミクロン」に訂正する。
′４）同第８頁第１５行の「イルムの反面を」を「イル
ムの片面を」に訂正する。
：５）同第８頁第１６行の「分けん化ＥＵＡＪを［分け
ん化ＥＶＡＪに訂正する。
：６） 同第１０頁第４行の「テストをつくりく返し
た。」を「テストをくり返した。」に訂正する。
［７） 同第１０頁第９行の「有効であることが示さ
れた。」を「有効であることが示された。」に訂正する
。
以 上FIG. 1 is a graph showing the relationship between compressive stress and compressive strain of the cushioning packaging material of the present invention manufactured according to Example 1. FIG. 2 is a graph showing the relationship between compressive stress and compressive strain of a cellular polyethylene film. Patent Applicant Asahi Kasei Kogyo Co., Ltd. Figure 2 Compression μS Procedural Amendment April 1986 Mr. Michibu Uga, Commissioner of the Patent Office Name of Motorcycle Cushioning Packaging Material 3 Made of Stretched Polystyrene Film, Relationship with the Amendment Case Patent Applicant 1-2-6-4 Dojimahama, Kita-ku, Osaka-shi, Osaka Prefecture, ``Details of the Invention'' in the specification to be amended Contents of the amendment in Column 5 "Explanation" Contents of the amendment As shown in the attached sheet 1) "Made of gold and steel as a mold" in line 15 of page 3 of the specification was changed to "
Correct to ``using wire mesh as a mold.'' 2+ ``On the sheet surface of the film,'' page 4, line 17,
" should be corrected to "on the sticker side of the film."'3) Change "Thickness is 5.0 microns" on page 7, line 9 to "
The thickness has been corrected to 50 microns. '4) On page 8, line 15, "the other side of the ilm" is corrected to "one side of the ilm". :5) On page 8, line 16, "Separate EUAJ is corrected to [separate EVAJ." :6) On page 10, line 4 of the same page, "I created and repeated the test." .” is corrected. [7] On page 10, line 9 of the same, "It was shown to be effective." is corrected to "It was shown to be effective."that's all
Claims (4)
スチレンフィルムでなる緩衝包装材(1) Cushioning packaging material made of biaxially oriented polystyrene film with many irregularities created by heat processing
状物である特許請求の範囲第１項記載の緩衝包装材(2) The cushioning packaging material according to claim 1, wherein the packaging material is a cylindrical article or a bag-shaped article having a heat-sealed part.
６０℃以下のアクリル系樹脂をコーテングしたものであ
る特許請求の範囲第１項記載の緩衝包装材(3) The buffer packaging material according to claim 1, wherein the biaxially stretched polystyrene film is coated with an acrylic resin having a secondary transition temperature of 60° C. or less.
被覆層の上に、二次転移温度が６０℃以下のアクリル系
樹脂をコーテングしたものである特許請求の範囲第１項
記載の緩衝包装材(4) The buffer packaging material according to claim 1, wherein the biaxially stretched polystyrene film is coated with an acrylic resin having a secondary transition temperature of 60° C. or less on an antistatic coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61005001A JPS62168878A (en) | 1986-01-16 | 1986-01-16 | Cushioning packaging material made of biaxial-oriented polystyrene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61005001A JPS62168878A (en) | 1986-01-16 | 1986-01-16 | Cushioning packaging material made of biaxial-oriented polystyrene film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62168878A true JPS62168878A (en) | 1987-07-25 |
Family
ID=11599337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61005001A Pending JPS62168878A (en) | 1986-01-16 | 1986-01-16 | Cushioning packaging material made of biaxial-oriented polystyrene film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0173558U (en) * | 1987-11-04 | 1989-05-18 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52155633A (en) * | 1976-06-21 | 1977-12-24 | Daicel Chem Ind Ltd | Coating composition for plastic and coated plastic film |
| JPS5510562B1 (en) * | 1970-06-18 | 1980-03-17 | ||
| JPS609174U (en) * | 1983-06-29 | 1985-01-22 | 日本メクトロン株式会社 | Flexible circuit board connector |
-
1986
- 1986-01-16 JP JP61005001A patent/JPS62168878A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510562B1 (en) * | 1970-06-18 | 1980-03-17 | ||
| JPS52155633A (en) * | 1976-06-21 | 1977-12-24 | Daicel Chem Ind Ltd | Coating composition for plastic and coated plastic film |
| JPS609174U (en) * | 1983-06-29 | 1985-01-22 | 日本メクトロン株式会社 | Flexible circuit board connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0173558U (en) * | 1987-11-04 | 1989-05-18 |
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