JPS6144986Y2 - - Google Patents
Info
- Publication number
- JPS6144986Y2 JPS6144986Y2 JP13160578U JP13160578U JPS6144986Y2 JP S6144986 Y2 JPS6144986 Y2 JP S6144986Y2 JP 13160578 U JP13160578 U JP 13160578U JP 13160578 U JP13160578 U JP 13160578U JP S6144986 Y2 JPS6144986 Y2 JP S6144986Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- bent edge
- bottom material
- inwardly bent
- synthetic resin
- 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
- 239000000463 material Substances 0.000 claims description 31
- 238000004806 packaging method and process Methods 0.000 claims description 17
- 229920003002 synthetic resin Polymers 0.000 claims description 16
- 239000000057 synthetic resin Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は内容物保護のための緩衝性などにすぐ
れ、かつ自立性を有する包装袋に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a packaging bag that has excellent cushioning properties for protecting contents and is self-supporting.
自立性を有する包装袋として、合成樹脂フイル
ムの筒体の下端部を絞つて丸底状にしたものや、
所謂ガゼツト折り加工して角底にしたものなどが
実用されているが、これらの包装袋は、底部にフ
イルムの折りジワが幾重にも重なつているため、
自立姿態が不安定であり、また底部が軟弱である
ため、重い内容物を入れる場合は別の底材を袋内
に設ける等の手当てを施す必要があつた。
Self-supporting packaging bags are made by squeezing the bottom end of a synthetic resin film cylinder to make it round-bottomed.
So-called gusset-folded bags with square bottoms are in practical use, but these packaging bags have multiple layers of folded film wrinkles on the bottom.
The self-standing position of the bag is unstable, and the bottom is soft, so when carrying heavy contents, it is necessary to take measures such as installing a separate bottom material inside the bag.
これに代わる包装袋として、合成樹脂フイルム
の筒体の下端部に底材を接合して自立袋とするこ
とが考えられる。 As an alternative packaging bag, a self-supporting bag may be created by bonding a bottom material to the lower end of a synthetic resin film cylinder.
合成樹脂フイルムの筒体と底材とを組み合わせ
た自立袋を形成するには、その筒体の下端部に底
材を接合するための接合代として内向折曲縁を形
成することが必要であるが、その内向折曲縁を、
折り曲げ治具を用いて形成しても、折り曲げグセ
を付けることが困難で、折り曲げた部分がフイル
ムの弾性により起立して元の状態に戻ろうとする
ため、底材の接合作業を能率よく行うことができ
ず、むりに重ね合わせて接合しようとすると接合
部分に捩れやゆがみが生じ易く、良好な形態に仕
上げることが困難である。
In order to form a self-supporting bag that combines a synthetic resin film cylinder and a bottom material, it is necessary to form an inwardly bent edge as a joining margin for joining the bottom material to the bottom end of the cylinder. However, its inwardly bent edge,
Even if a bending jig is used to form the film, it is difficult to create a crease, and the folded part tends to stand up due to the elasticity of the film and return to its original state. Therefore, it is important to efficiently join the bottom material. If you try to overlap them and join them together, the joined parts tend to twist or distort, making it difficult to finish them in a good shape.
しかも、折り曲げ治具を用いてフイルム筒体に
内向折曲縁を形成すると、内向折曲縁に多数の折
りジワが生じるので、これに底材を重ねて熱融着
等により接合しても、十分に密着させることが困
難で、接合力の不足により、重い内容物を入れた
場合に、底抜けが生じるおそれがある。また、フ
イルム筒体の下端部の内向折曲縁に底材を首尾よ
く接合（熱融着等）させることができても、フイ
ルムが薄手軟質である場合は、自立姿勢は必ずし
も安定しない。 Moreover, if a bending jig is used to form an inwardly bent edge on a film cylinder, many creases will occur on the inwardly bent edge, so even if the bottom material is overlapped and bonded by heat fusion, etc. It is difficult to achieve sufficient adhesion, and due to insufficient bonding force, there is a risk that the container will fall out when heavy contents are placed in it. Further, even if the bottom material can be successfully joined (heat fused, etc.) to the inwardly bent edge of the lower end of the film cylinder, if the film is thin and soft, the self-supporting posture will not necessarily be stable.
底材として平板状のものを使用する代わりに、
その周囲に立壁を設けた盆形状の底材を使用し、
これを合成樹脂フイルムの筒体の下端部に嵌め込
み、立壁の外周面を接合代として接合することも
考えられるが、その嵌め込み作業は甚だ困難で非
能率であり、かつ底材の加工コストが高くつくと
いう難点がある。 Instead of using a flat plate as the bottom material,
Using a tray-shaped bottom material with a standing wall around it,
It is conceivable to fit this into the lower end of the synthetic resin film cylindrical body and join it using the outer peripheral surface of the vertical wall as a joining margin, but this fitting work is extremely difficult and inefficient, and the cost of processing the bottom material is high. There is a problem with getting it on.
更に、従来の自立袋は、耐衝撃性や緩衝性等の
内容物保護機能の点においても、完全なものでは
なかつた。 Furthermore, conventional self-supporting bags have not been perfect in terms of contents protection functions such as impact resistance and cushioning properties.
本考案は上記問題点を解決するためになされた
ものであり、周面に互いに独立した多数の気泡群
を有し、かつ少なくとも下端部A3が熱収縮性を
有する合成樹脂フイルム筒体Ａの該下端部A3を
熱収縮させて内向折曲縁Ｃを形成し、これに底材
Ｂを重ね合わせて接合してなる緩衝性などにすぐ
れた自立性を有する包装袋を提供する。
The present invention was made in order to solve the above problems, and is a synthetic resin film cylinder A having a large number of mutually independent bubble groups on the circumferential surface and having at least a lower end A 3 that is heat-shrinkable. The lower end part A3 is heat-shrinked to form an inwardly bent edge C, and a bottom material B is superposed and bonded to this to provide a packaging bag having self-supporting properties with excellent cushioning properties.
本考案は、合成樹脂フイルム筒体Ａの少なくと
もその下端部A3に熱収縮性をもたせ、その熱収
縮性を利用して内向折曲縁Ｃを形成しているの
で、折り曲げ治具を用いて形成する場合と異な
り、内向折曲縁Ｃに折りジワや襞は全くなく平坦
で、しかもその折り曲げ形状が安定している。従
つて、これに重ね合わせて接合される底材の接合
形態が良好で、捩れやずれ等が生じることがな
く、かつ接合強度も高い。
In the present invention, at least the lower end A 3 of the synthetic resin film cylinder A has heat shrinkability, and the inwardly bent edge C is formed by utilizing the heat shrinkage. Unlike the case where the inwardly bent edge C is formed, the inwardly bent edge C has no creases or folds and is flat, and its bent shape is stable. Therefore, the bonding form of the bottom material that is overlapped and bonded to this is good, there is no twisting or shifting, and the bonding strength is high.
特に、筒体Ａの下端部A3を内向に折り曲げる
ための熱収縮処理（熱風吹付け等）の際に、熱収
縮に伴つて下端部A3に厚肉化と硬化が生じ、こ
れに底材が接合されることによつて、包装袋の底
部に剛性・保形性が与えられる。このため、合成
樹脂フイルムの筒体の下端部を折り曲げ治具等で
機械的に折り曲げて底板を接合（例えば熱融着に
より）させただけの場合に比し、より安定した自
立性を有する包装袋となる。 In particular, during heat shrinkage treatment (hot air blowing, etc.) for bending the lower end A 3 of the cylindrical body A inward, the lower end A 3 thickens and hardens due to heat shrinkage, which causes the bottom end A 3 to thicken and harden. By joining the materials, rigidity and shape retention are imparted to the bottom of the packaging bag. Therefore, compared to a case where the lower end of the synthetic resin film cylinder is mechanically bent with a bending jig or the like and the bottom plate is joined (for example, by heat fusion), the packaging has more stable self-supporting properties. It becomes a bag.
また、本考案包装袋は、筒体Ａの気泡群により
緩衝機能や断熱効果を有し、内容物を外部の衝撃
や熱的影響から保護する。その各気泡は互いに独
立し、相互の連通は遮断されているから、使用時
あるいは流通過程で、１個所の気泡に破損が生じ
ても、その他の気泡はそのまま保持されるので、
緩衝機能が断熱効果が大きく損なわれることがな
い。 Furthermore, the packaging bag of the present invention has a buffering function and a heat insulating effect due to the bubble group of the cylinder A, and protects the contents from external impact and thermal influence. Each of the bubbles is independent of each other and communication with each other is cut off, so even if one bubble is damaged during use or distribution, the other bubbles will remain intact.
The buffering function and insulation effect will not be significantly impaired.
本考案の実施例を添付図面により説明すると、
筒体Ａは、通気性を防いだ合成樹脂製熱収縮性フ
イルムA1，A2の間に空気等を封止してなる互い
に独立した多数の気泡群を有するシート状のもの
を素材とする筒体である。筒体が、互いに独立し
た多数の気泡を有するというのは、包装される内
容物を衝撃から保護し、あるいは断熱効果が得ら
れるように、図示のように気泡群が周面にまんべ
んなく形成されている。という程の意味である。
An embodiment of the present invention will be explained with reference to the attached drawings.
The cylindrical body A is made of a sheet-like material having a large number of mutually independent groups of air bubbles formed by sealing air, etc. between heat-shrinkable synthetic resin films A 1 and A 2 that prevent air permeability. It is a cylinder. The fact that the cylindrical body has a large number of independent air bubbles means that the air bubbles are evenly formed around the periphery as shown in the figure, in order to protect the packaged contents from impact or to provide a heat insulating effect. There is. That's what it means.
筒体Ａの気泡群は、その外側面または内側面の
いずれにあつてもよく（第４図、第５図）、また
両方の面に気泡を有してもよい（第６図）。気泡
の中には、スポンジ等を入れてもよい。 The bubble group of the cylindrical body A may be present on either the outer surface or the inner surface (FIGS. 4 and 5), or may have bubbles on both surfaces (FIG. 6). A sponge or the like may be placed inside the bubble.
気泡群を有するシートを筒状にするには、熱融
着、超音波シール、高周波シール、あるいは接合
剤による接合等を用いればよい。 To form a sheet having a group of bubbles into a cylindrical shape, heat fusion, ultrasonic sealing, high frequency sealing, bonding using a bonding agent, or the like may be used.
合成樹脂製熱収縮性フイルムとしては、ポリエ
チレン、ポリプロピレン、ナイロン等が挙げられ
る。 Examples of the synthetic resin heat-shrinkable film include polyethylene, polypropylene, nylon, and the like.
筒体Ａは必ずしもその全体が熱収縮性を有する
ものである必要はなく、下端部A3（加熱収縮に
より内向折曲縁Ｃが形成される部分）のみを熱収
縮性を有する合成樹脂フイルムとし、残余の部分
は熱収縮性を有しない合成樹脂フイルムとして両
者を貼り合わせたものであつてもよい。熱収縮に
より内向折曲縁Ｃを形成するための該下端部A3
のフイルムの熱収縮率は５％程度以上であれば十
分である。 The entire cylinder A does not necessarily have to be heat-shrinkable; only the lower end A 3 (the part where the inwardly bent edge C is formed by heat-shrinking) is made of a heat-shrinkable synthetic resin film. The remaining portion may be a synthetic resin film that does not have heat shrinkability and is made by bonding the two together. The lower end A 3 for forming an inwardly bent edge C by heat shrinkage
It is sufficient that the heat shrinkage rate of the film is about 5% or more.
筒体の下端部A3を熱収縮して形成した内向折
曲縁Ｃに底板Ｂを重ね合わされて接合される。底
材Ｂは、筒体Ａと同じ材質でも他の材質でもよい
が、気泡を有する合成樹脂フイルムや合成樹脂シ
ートまたは合成樹脂をコーテイングした紙等を用
いるのが好ましい。底板Ｂは平板状のものや凹凸
に成形したものを用いてもよく、外形や円型、小
判型、角型等任意である。 The bottom plate B is overlapped and joined to the inwardly bent edge C formed by heat-shrinking the lower end A3 of the cylindrical body. The bottom material B may be made of the same material as the cylindrical body A or another material, but it is preferable to use a synthetic resin film having air bubbles, a synthetic resin sheet, paper coated with a synthetic resin, or the like. The bottom plate B may be flat or uneven, and may have any external shape, such as a circular shape, an oval shape, a square shape, etc.
筒体Ａの内向折曲縁Ｃと底材Ｂの重ね合わせ面
の接合は、熱融着によつてもよく、相互の熱融着
性が乏しい材質である場合には適当な接合剤を使
用すればよい。また、第８図に示すように一枚の
底材Ｂに、筒体Ａを複数個設けることもできる。 The inwardly bent edge C of the cylinder A and the overlapping surface of the bottom material B may be joined by heat fusion, and if the materials have poor mutual heat fusion properties, an appropriate bonding agent is used. do it. Further, as shown in FIG. 8, a plurality of cylindrical bodies A can be provided on one bottom material B.
本考案包装袋の成形工程例を説明すると、
(a) 成形型、Ｄの外周上に内向折曲縁Ｃが形成で
きる長さを有する筒体Ａを緩嵌する。 An example of the molding process for the packaging bag of the present invention will be described: (a) A cylinder A having a length that allows an inwardly bent edge C to be formed is loosely fitted onto the outer periphery of a mold D.
(b) 成形型Ｄの上に底材Ｂを載せる。(b) Place the bottom material B on top of the mold D.
(c) 筒体Ａの下端部A3のみに熱風吹付け等によ
り熱Ｆを加えて収縮させ、内向折曲縁Ｃを底材
Ｂの外面B1の周縁部に形成する。（第２図、第
３図参照）
(d) 熱型Ｅを圧下することにより内向折曲縁Ｃと
底材Ｂのシール部B3を熱融着する。(c) Apply heat F by blowing hot air or the like to only the lower end A 3 of the cylindrical body A to contract it, and form an inwardly bent edge C at the periphery of the outer surface B 1 of the bottom material B. (See Figures 2 and 3) (d) By pressing down the hot mold E, the inwardly bent edge C and the seal portion B3 of the bottom material B are thermally fused.
以上の行程によつて本考案の筒体の製作は完了
する。 Through the above steps, the production of the cylindrical body of the present invention is completed.
なお、行程(b)と(c)の順序を逆にして内向折曲縁
の外面に底材Ｂの内面B2を重ねて熱融着しても
よい。 Note that the order of steps (b) and (c) may be reversed, and the inner surface B2 of the bottom material B may be overlapped and heat-sealed on the outer surface of the inwardly bent edge.
本考案の包装袋は、袋内に内容物（商品）を収
納したのち開口部は熱融着により、または接合剤
を使用し、あるいはヒモなどでしばつて封止すれ
ばよい。 After the contents (commodities) are stored in the packaging bag of the present invention, the opening may be sealed by heat sealing, using a bonding agent, or tying with string.
本考案の包装袋に商品を収納し、封止した包装
体は、安定した自立姿態を保つので、店頭陳列効
果にすぐれ、また筒体の気泡群の緩衝機能により
内容物の破損・変形を防止すると共に、気泡群の
断熱性、保冷・保温性により、内容物を熱影響か
ら保護し、内容物の品質を維持する。
The product is stored and sealed in the packaging bag of this invention, and the package maintains a stable self-supporting posture, making it highly effective for displaying in stores, and the cushioning function of the air bubbles in the cylinder prevents damage and deformation of the contents. At the same time, the insulation, cold/warm retention properties of the bubbles protect the contents from heat effects and maintain the quality of the contents.
また、底材を接合する筒体下端部の内向折曲縁
が熱収縮により形成されているので、丸底袋や角
底袋等、袋体の形状の如何を問わず、その内向折
曲縁はシワや襞がなく平坦で、安定した折り曲げ
グセを有しており、従つて底材接合作業・製袋能
率が高く、かつその包装袋は、底部に捩れやゆが
みのないすぐれた形態を有する。 In addition, since the inwardly bent edge of the lower end of the cylinder that joins the bottom material is formed by heat shrinking, the inwardly bent edge can be used regardless of the shape of the bag, such as round-bottomed bags or square-bottomed bags. The bag is flat without wrinkles or folds, and has stable bending patterns, so the bottom material joining work and bag making efficiency are high, and the packaging bag has an excellent shape with no twisting or distortion at the bottom. .
なお、本考案包装袋に商品を封入して梱包・輸
送する際にも包装袋のまわりに、二重、三重の包
装を付加する必要はなく、包装、輸送コストの低
減効果も得られる。 Furthermore, even when a product is enclosed in the packaging bag of the present invention and then packed and transported, there is no need to add double or triple wrapping around the packaging bag, and the effect of reducing packaging and transportation costs can also be obtained.
第１図は本考案の断面図、第２図、第３図は本
考案包装袋の成形行程の断面説明図、第４図、第
５図、第６図は気泡を有する合成樹脂フイルムの
断面図、第７図、第８図は本考案の他の実施例の
断面図である。
Ａ：筒体、A3：下端部、Ｂ：底材、B1：底材
外面、B2：底材内面、B3：底材シール部、Ｃ：
内向折曲縁、Ｄ：成形型、Ｅ：熱型、Ｆ：熱。
Figure 1 is a cross-sectional view of the present invention, Figures 2 and 3 are cross-sectional explanatory views of the forming process of the packaging bag of the present invention, and Figures 4, 5, and 6 are cross-sections of a synthetic resin film with air bubbles. 7 and 8 are cross-sectional views of other embodiments of the present invention. A: Cylindrical body, A 3 : Lower end, B: Bottom material, B 1 : Bottom material outer surface, B 2 : Bottom material inner surface, B 3 : Bottom material seal part, C:
Inward bent edge, D: Molding mold, E: Heat mold, F: Heat.
Claims (1)
つ少なくとも下端部A3が熱収縮性を有する合成
樹脂フイルム筒体Ａの該下端部を熱収縮させて形
成した内向折曲縁Ｃに底材Ｂを重ね合わせて接合
してなる緩衝性などにすぐれた自立性を有する包
装袋。 The bottom is attached to an inwardly bent edge C formed by heat-shrinking the lower end of a synthetic resin film cylinder A having a large number of mutually independent bubble groups on the circumferential surface and having at least a lower end A 3 that is heat-shrinkable. A self-supporting packaging bag with excellent cushioning properties made by overlapping and bonding material B.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13160578U JPS6144986Y2 (en) | 1978-09-25 | 1978-09-25 | |
| GB7904199A GB2015473A (en) | 1978-02-27 | 1979-02-06 | A container with a stiffened bottom, and methods for producing the same |
| DE2906680A DE2906680C2 (en) | 1978-02-27 | 1979-02-21 | Reinforced bottom packaging container and method for its manufacture |
| CA000322123A CA1158209A (en) | 1978-02-27 | 1979-02-23 | Container with a stiffened bottom, and methods for producing the same |
| FR7904652A FR2418160A1 (en) | 1978-02-27 | 1979-02-23 | CONTAINER WITH REINFORCED BOTTOM AND ITS MANUFACTURING PROCESSES |
| IT7920533A IT1111914B (en) | 1978-02-27 | 1979-02-26 | CONTAINER WITH STIFF FUND AND RELATED MANUFACTURING PROCEDURES |
| CA000391910A CA1144729A (en) | 1978-02-27 | 1981-12-09 | Method for making a container having a soft, pliable wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13160578U JPS6144986Y2 (en) | 1978-09-25 | 1978-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5547977U JPS5547977U (en) | 1980-03-28 |
| JPS6144986Y2 true JPS6144986Y2 (en) | 1986-12-18 |
Family
ID=29098341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13160578U Expired JPS6144986Y2 (en) | 1978-02-27 | 1978-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6144986Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838866U (en) * | 1981-09-08 | 1983-03-14 | 新キャタピラ−三菱株式会社 | Negative pressure prevention device for cylinders for driving work equipment |
| JPS59156958U (en) * | 1983-04-01 | 1984-10-22 | セイレイ工業株式会社 | Hand accelerator structure in backhoe |
-
1978
- 1978-09-25 JP JP13160578U patent/JPS6144986Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5547977U (en) | 1980-03-28 |
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