JPH04457B2 - - Google Patents
Info
- Publication number
- JPH04457B2 JPH04457B2 JP19228184A JP19228184A JPH04457B2 JP H04457 B2 JPH04457 B2 JP H04457B2 JP 19228184 A JP19228184 A JP 19228184A JP 19228184 A JP19228184 A JP 19228184A JP H04457 B2 JPH04457 B2 JP H04457B2
- Authority
- JP
- Japan
- Prior art keywords
- inner container
- container
- layer
- outer material
- fused
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 30
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920006248 expandable polystyrene Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 33
- 239000004831 Hot glue Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、内側容器が合成樹脂によつて成形
された二重容器の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a double container whose inner container is molded from synthetic resin.
（従来の技術）
従来合成樹脂製二重容器の製造方法としては、
予め各別に形成した外側容器と内側容器とを嵌合
して、上部フランジ部分を機械的に巻き締める方
法、内側容器の外側面に印刷ラベルを捲回して貼
り付ける方法、あるいは内側容器を成形する前に
外側材料を金型に嵌め込んだ後、この金型内で内
側容器を成形し、この成形過程で内側容器と外側
材料を溶着させる方法が知られている。(Prior art) Conventional methods for manufacturing double containers made of synthetic resin include:
A method of fitting an outer container and an inner container that have been formed separately in advance and mechanically tightening the upper flange part, a method of winding and pasting a printed label on the outer surface of the inner container, or a method of molding the inner container. A method is known in which the outer material is first fitted into a mold, the inner container is then molded in the mold, and the inner container and the outer material are welded during this molding process.
（発明が解決しようとする問題点）
従来公知のこれらの製造方法によつて製造され
た二重容器は、夫々印刷適性、価格、断熱性、耐
熱性あるいは完成品の品質性、例えば容器の厚み
のばらつき、形状の均一性等について何れかの問
題点があり、高品質な二重容器を安価に提供する
ことができないという問題点があつた。(Problems to be Solved by the Invention) The double containers manufactured by these conventionally known manufacturing methods have problems in printability, price, heat insulation, heat resistance, or quality of the finished product, such as the thickness of the container. There were some problems with variations in color, uniformity of shape, etc., and there was a problem that high quality double containers could not be provided at low cost.
この発明は、上記公知の二重容器の製造方法の
問題点に鑑み、主として容器の厚みのばらつき、
形状の均一性等の品質を高くすることを目的とし
てなしたものである。 In view of the problems of the above-mentioned known double container manufacturing method, this invention mainly addresses the problems of variations in container thickness.
This was done for the purpose of improving quality such as shape uniformity.
（問題点を解決する為の手段）
この為に本発明では、外側部層が内側部層より
軟化点の低い内側容器と、この内側容器の外側部
層と熱接着可能な内側部層を有する外側材料を組
み合わせ、冷却及び加熱可能な受台に挿入した
後、該内側容器の内側部層が軟化変形しない程度
の温度にて内側容器と外側材料とを加熱圧着して
融着一体化することを特徴とする。(Means for solving the problem) For this purpose, the present invention has an inner container whose outer layer has a lower softening point than the inner layer, and an inner layer which can be thermally bonded to the outer layer of the inner container. After combining the outer materials and inserting them into a pedestal that can be cooled and heated, the inner container and the outer material are heat-pressed and fused together at a temperature that does not soften or deform the inner layer of the inner container. It is characterized by
（実施例）
以下好ましい実施例により本発明方法の詳細を
説明する。(Example) The details of the method of the present invention will be explained below using preferred examples.
実施例 １
外側部層２として低密度ポリエチレン層、中間
層４としてエチレン−酢酸ビニル共重合体けん化
物及び内側部層３としてポリプロピレン層からな
る内側容器１と、外側材料５として内面にホツト
メルト系の接着剤層を有する発泡ポリスチレンか
らなる外側容器とを嵌合し、外側材料の寸法とほ
ぼ同一の受台６に挿入し、約130℃に加熱された
圧縮空気（圧力3.5〜４Kg／cm2）７を吹き込み、
内側容器の外側部層２とを溶着一体化して二重容
器を得た。Example 1 An inner container 1 consisting of a low-density polyethylene layer as the outer layer 2, a saponified ethylene-vinyl acetate copolymer as the intermediate layer 4, and a polypropylene layer as the inner layer 3, and a hot melt-based inner surface as the outer material 5. An outer container made of expanded polystyrene having an adhesive layer is fitted, inserted into a pedestal 6 whose dimensions are almost the same as the outer material, and compressed air heated to about 130°C (pressure 3.5 to 4 Kg/cm 2 ) is inserted. Blow in 7,
The inner container and the outer layer 2 were welded and integrated to obtain a double container.
尚、吹き込み加熱圧縮空気の温度は150℃以上
あれば内側容器の内側部層３のポリプロピレン層
に変形をきたしてしまい、又100℃以下であれば
内側容器の外側部層２と外側材料５とは溶着せず
一体化されない。 If the temperature of the blown heated compressed air is higher than 150°C, it will deform the polypropylene layer of the inner layer 3 of the inner container, and if it is lower than 100°C, it will cause the outer layer 2 and the outer material 5 of the inner container to deform. are not welded and integrated.
実施例 ２
外側部層２として軟化点90℃のポリスチレン
層、中間層４としてエチレン−酢酸ビニル共重合
体けん化物及び内側部層として軟化点110℃のポ
リスチレン層からなる内側容器１と、外側材料５
として発泡ポリスチレンのシートを円筒状に内側
容器１の外径に合わせて形成したものを嵌合し、
受台６に挿入後、内側容器１の中側より100℃に
加熱したプラグ８を圧入して内側容器１と外側材
料５とを溶着一体化して二重容器を得た。Example 2 Inner container 1 consisting of a polystyrene layer with a softening point of 90°C as the outer layer 2, a saponified ethylene-vinyl acetate copolymer as the intermediate layer 4, and a polystyrene layer with a softening point of 110°C as the inner layer, and the outer material 5
A foamed polystyrene sheet formed into a cylindrical shape to match the outer diameter of the inner container 1 is fitted,
After inserting into the pedestal 6, a plug 8 heated to 100° C. was press-fitted from the inside of the inner container 1, and the inner container 1 and the outer material 5 were welded together to obtain a double container.
実施例 ３
実施例１で用いた内側容器１を使用し、外側材
料５として延伸発泡ポリスチレンからなり内側に
ホツトメルト系接着剤層を付した円筒状のチユー
ブを該内側容器１の胴部に嵌め、次いで内側容器
１にプラグ８を挿入し外側材料面より180℃の加
熱空気７を吹き付けて該熱収縮性を有する延伸発
泡ポリスチレンチユーブを熱収縮させて内側容器
１の外側部層２に融着させて二重容器を得た。Example 3 Using the inner container 1 used in Example 1, a cylindrical tube made of expanded polystyrene and coated with a hot melt adhesive layer on the inside as the outer material 5 was fitted into the body of the inner container 1, Next, a plug 8 is inserted into the inner container 1 and heated air 7 at 180° C. is blown from the outer material surface to heat shrink the stretched polystyrene tube having heat shrinkability and fuse it to the outer layer 2 of the inner container 1. A double container was obtained.
実施例 ４
実施例１で用いた内側容器１を使用し、外側材
料５として紙の内面にポリエチレン層を積層して
なる内側容器１の外径に合わせて形成した円筒状
の容器に、内側容器１を嵌め合わせて、受台６に
挿入後、内側容器１の中側より130℃に加熱した
プラグ８を圧入して内側容器１と外側材料５とを
溶着一体化させて二重容器を得た。Example 4 The inner container 1 used in Example 1 was used, and the inner container was added to a cylindrical container formed to match the outer diameter of the inner container 1 made by laminating a polyethylene layer on the inner surface of paper as the outer material 5. 1 and inserted into the pedestal 6, a plug 8 heated to 130° C. is press-fitted from the inside of the inner container 1 to weld and integrate the inner container 1 and the outer material 5 to obtain a double container. Ta.
実施例 ５
実施例２で用いた内側容器１を使用し、外側材
料５として合成紙の内面にホツトメルト系の接着
剤層を積層してなる内側容器１の外径に合わせて
形成した円筒状の容器に、内側容器１を嵌め合わ
せて、受台６に挿入後、約100℃に加熱された圧
縮空気（圧力3.5〜４Kg／cm2）７を吹き込んで内
側容器１と外側材料５とを溶着一体化させて二重
容器を得た。Example 5 Using the inner container 1 used in Example 2, a cylindrical material was formed to match the outer diameter of the inner container 1, which was made by laminating a hot melt adhesive layer on the inner surface of synthetic paper as the outer material 5. After fitting the inner container 1 into the container and inserting it into the pedestal 6, compressed air (pressure 3.5 to 4 Kg/cm 2 ) 7 heated to about 100° C. is blown into the container to weld the inner container 1 and the outer material 5. By integrating them, a double container was obtained.
（発明の作用及び効果）
本発明では上記の通り、外側部層が内側部層よ
り軟化点の低い内側容器と、この内側容器の外側
部層と熱接着可能な内側部層を有する外側材料を
組合せ、これを受台に挿入した後、内側容器の内
側部層が軟化変形しない程度の温度にて内側容器
と外側材料とを加熱圧着するから、内側容器の内
側部層が高品質に形成されておれば、この内側容
器の内側部層が、内側容器と外側材料との加熱圧
着の高温によつて変形する虞なく、高品質な二重
容器を得ることができる。又内側容器にガスバリ
ヤー性の容器材料を使用し、外側材料に発泡ポリ
スチレンシート等の断熱材を使用すれば、ガスバ
リヤー性が高く、而も断熱性、耐熱性、保温性が
高く、印刷適性のよい二重容器を安価に提供する
ことができる効果を有する。(Operations and Effects of the Invention) As described above, the present invention uses an outer material having an inner container whose outer layer has a lower softening point than the inner layer, and an inner layer which can be thermally bonded to the outer layer of the inner container. After combining and inserting this into the pedestal, the inner container and the outer material are heat-pressed at a temperature that does not soften or deform the inner layer of the inner container, so that the inner layer of the inner container is formed with high quality. By doing so, there is no possibility that the inner layer of the inner container will be deformed by the high temperature of the heat-press bonding between the inner container and the outer material, and a high-quality double container can be obtained. In addition, if a container material with gas barrier properties is used for the inner container and a heat insulating material such as a foamed polystyrene sheet is used for the outer material, it will have high gas barrier properties, and will also have high heat insulation, heat resistance, and heat retention properties, and is suitable for printing. This has the effect that a double container with good quality can be provided at low cost.
第１図は本発明に使用する内側容器の断面図、
第２図は本発明に使用する外側材料であり、イは
容器状の外側材料の断面図、ロは円筒状の外側材
料の断面図、第３図は本発明の製造方法を示すも
ので加熱圧縮空気を吹き込む方法を示す断面図、
及び第４図は本発明の他の製造方法を示すもので
加熱プラグを使用して行う方法を示す断面図であ
る。
１……内側容器、２……外側部層、３……内側
部層、４……中間層、５……外側部材、６……受
台、７……加熱圧縮空気、８……加熱プラグ。
FIG. 1 is a sectional view of the inner container used in the present invention;
Fig. 2 shows the outer material used in the present invention, A is a cross-sectional view of the container-shaped outer material, B is a cross-sectional view of the cylindrical outer material, and Fig. 3 shows the manufacturing method of the present invention. A cross-sectional view showing how to blow compressed air,
and FIG. 4 is a sectional view showing another manufacturing method of the present invention, which is carried out using a heating plug. DESCRIPTION OF SYMBOLS 1... Inner container, 2... Outer layer, 3... Inner layer, 4... Intermediate layer, 5... Outer member, 6... Rest, 7... Heated compressed air, 8... Heating plug .
Claims (1)
器と、この内側容器の外側部層と熱接着可能な内
側部層を有する外側材料を組み合わせ、冷却及び
加熱可能な受台に挿入した後、該内側容器の内側
部層が軟化変形しない程度の温度にて内側容器と
外側材料とを加熱圧着して融着一体化することを
特徴とする二重容器の製造方法。 ２ 内側容器と外側材料とを受台に挿入後、該内
側容器の中側より内側容器の内側部層が変形を生
ぜずに、かつ外側部層が軟化融着可能な温度の加
熱圧縮空気を吹き込んで内側容器と外側材料とを
融着一体化した後に受台を冷却することを特徴と
する特許請求の範囲第１項記載の二重容器の製造
方法。 ３ 内側容器と外側材料とを受台に挿入後、該内
側容器の中側より内側容器の内側部層が変形を生
ぜずに、かつ外側部層が軟化融着可能な温度の加
熱プラグを圧入し内側容器と外側材料とを融着一
体化した後に受台を冷却することを特徴とする特
許請求の範囲第１項記載の二重容器の製造方法。 ４ 外側部層が低密度ポリエチレン、低軟化点の
ポリスチレンからなり、内側部層がエチレン−酢
酸ビニル共重合体けん化物、ポリプロピレン又は
軟化点の高いポリスチレンからなる内側容器であ
り、外側材料が発泡ポリスチレン、熱収縮性ポリ
スチレン、紙又は合成紙からなることを特徴とす
る特許請求の範囲第１項、第２項又は第３項記載
の二重容器の製造方法。[Scope of Claims] 1. An inner container whose outer layer has a lower softening point than the inner layer, and an outer material having an inner layer that can be thermally bonded to the outer layer of the inner container, and which can be cooled and heated. A method for producing a double container, which comprises inserting the inner container into a pedestal and then heat-pressing the inner container and the outer material to fuse and integrate them at a temperature that does not soften or deform the inner layer of the inner container. . 2. After inserting the inner container and the outer material into the pedestal, heated compressed air is applied from the inside of the inner container at a temperature that allows the inner layer of the inner container to be softened and fused without causing deformation and the outer layer to be softened and fused. 2. The method of manufacturing a double container according to claim 1, wherein the pedestal is cooled after the inner container and outer material are fused and integrated by blowing. 3. After inserting the inner container and the outer material into the pedestal, a heating plug is press-fitted from the inside of the inner container at a temperature that allows the inner layer of the inner container to be softened and fused without causing deformation and the outer layer to be softened and fused. 2. The method of manufacturing a double container according to claim 1, wherein the pedestal is cooled after the inner container and outer material are fused and integrated. 4 An inner container in which the outer layer is made of low-density polyethylene or polystyrene with a low softening point, the inner layer is made of saponified ethylene-vinyl acetate copolymer, polypropylene, or polystyrene with a high softening point, and the outer material is foamed polystyrene. The method for manufacturing a double container according to claim 1, 2, or 3, characterized in that the container is made of heat-shrinkable polystyrene, paper, or synthetic paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59192281A JPS6168228A (en) | 1984-09-12 | 1984-09-12 | Preparation of double container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59192281A JPS6168228A (en) | 1984-09-12 | 1984-09-12 | Preparation of double container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168228A JPS6168228A (en) | 1986-04-08 |
| JPH04457B2 true JPH04457B2 (en) | 1992-01-07 |
Family
ID=16288664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59192281A Granted JPS6168228A (en) | 1984-09-12 | 1984-09-12 | Preparation of double container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168228A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6157378B2 (en) * | 2014-02-17 | 2017-07-05 | 日清食品ホールディングス株式会社 | Mating type |
-
1984
- 1984-09-12 JP JP59192281A patent/JPS6168228A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6168228A (en) | 1986-04-08 |
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