JPH0464286B2 - - Google Patents
Info
- Publication number
- JPH0464286B2 JPH0464286B2 JP2948085A JP2948085A JPH0464286B2 JP H0464286 B2 JPH0464286 B2 JP H0464286B2 JP 2948085 A JP2948085 A JP 2948085A JP 2948085 A JP2948085 A JP 2948085A JP H0464286 B2 JPH0464286 B2 JP H0464286B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- shoulder
- mouth
- passage closing
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 32
- 229920003002 synthetic resin Polymers 0.000 claims description 14
- 239000000057 synthetic resin Substances 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 11
- 239000002648 laminated material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000003303 reheating Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage 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
- Tubes (AREA)
- Closures For Containers (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (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
本発明は、医薬品、化粧品、化学材料等の小型
容器に適した通路閉鎖材付チユーブの製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a tube with a passage closure material suitable for small containers for pharmaceuticals, cosmetics, chemical materials, etc.
従来の技術
従来、第６図に示すように、軟質金属をもつて
口頭部の通路に閉鎖部a′を設け、これを使用時に
は針で被つて、内容物を押出すようにしたチユー
ブ１１′がある。この形式のものは軟質金属製で
あるため、押出使用時に表面の凹凸が多くなり、
外観が損なわれる欠点がある。BACKGROUND ART Conventionally, as shown in FIG. 6, a tube 11' is made of soft metal and has a closing part a' in the oral passageway, which is covered with a needle during use to push out the contents. There is. Since this type of product is made of soft metal, the surface will have many irregularities when extruded.
There is a drawback that the appearance is impaired.
そこで、第７図に示すように、胴部３を例えば
アルミ箔と合成樹脂との積層チユーブで構成し、
これに肩部１２から口頭部１３をポリエチレン等
の合成樹脂材料単味を注型成形によつて一体に成
形してなるチユーブが知られている。かかる一体
成形チユーブは、口頭部１３外側に螺糸７を設け
る必要上上記のように注型成形により成形される
ため、胴部３のようにアルミ箔と合成樹脂との積
層材料では注型ができないため、合成樹脂材料単
味のものとなる。したがつて、チユーブ口頭部１
３から肩部１２にかけては積層材と違つてガスバ
リヤ性に乏しく、これらの部分から酸素等が浸入
したり、内容物の気化成分が徐々に洩れたりし
て、保存性を損なう。そこで第８図に示すよう
に、肩部１２の内側に積層材製挿入物を設け、ガ
スバリヤ性を与えている。しかし、これでも口頭
部とキヤツプを通つて徐々に気化成分が洩れ、内
容物を変質させる恐れがある。 Therefore, as shown in FIG. 7, the body 3 is constructed of a laminated tube of aluminum foil and synthetic resin, for example.
A tube is known in which the shoulder portion 12 and mouth portion 13 are integrally molded from a single synthetic resin material such as polyethylene by cast molding. Such an integrally molded tube is molded by cast molding as described above because it is necessary to provide the thread 7 on the outside of the mouth part 13, so casting is not possible with a laminated material of aluminum foil and synthetic resin like the body part 3. Since this is not possible, it is made of only synthetic resin material. Therefore, tube oral part 1
Unlike a laminated material, the area from 3 to the shoulder 12 has poor gas barrier properties, and oxygen and the like may enter from these areas, and vaporized components of the contents may gradually leak out, impairing storage stability. Therefore, as shown in FIG. 8, a laminate insert is provided inside the shoulder 12 to provide gas barrier properties. However, even with this, vaporized components may gradually leak through the mouth part and the cap, causing the contents to change in quality.
発明が解決しようとする問題点
上記従来の問題点に鑑み、内容物の気化成分の
洩れと空気の浸入を防止するため、チユーブの口
頭部の通路に閉鎖材を取付けることが考えられ
る。しかしながら、閉鎖材を取付けるときに、単
に熱圧着するだけでは、全体的に接着強度の低い
ものが多く発生し、チユーブの使用時に閉鎖材を
突破り内容物をしぼり出そうとすると、閉鎖材が
チユーブの奥に落ち込んで開かなかつたり、開い
ても非常に小さな穴しか開かないという恐れが生
じる。Problems to be Solved by the Invention In view of the above-mentioned conventional problems, it has been considered to attach a closing member to the passageway at the mouth of the tube in order to prevent the leakage of vaporized components of the contents and the infiltration of air. However, when attaching the closure material, simply bonding with heat and pressure often results in poor adhesive strength, and if you try to break through the closure material and squeeze out the contents when using the tube, the closure material will be damaged. There is a fear that the tube may fall into the depths of the tube and not open, or even if it opens, only a very small hole will be made.
この欠点の発生原因には次の二点が考えられ
る。一つは、シヨルダー成形用金型は強制冷却さ
れているので、連続運転中は安定しているが、始
業時の運転開始直後、および連続運転作業中に停
止、運転を繰り返すと金型温度が一定にならず、
したがつて、熱圧着条件が変わり、接着力にバラ
ツキが生じる。特に金型温度が下がつた場合、接
着力の非常に弱いものが発生する原因となる。 The following two points are considered to be the cause of this defect. One is that the mold for shoulder molding is forcedly cooled, so it is stable during continuous operation, but the mold temperature may drop immediately after the start of operation or if the operation is stopped and operated repeatedly during continuous operation. not constant,
Therefore, the thermocompression bonding conditions change, causing variations in adhesive strength. Particularly when the mold temperature drops, this can cause extremely weak adhesive strength.
もう一つの原因としては、シヨルダー部分のプ
ラスチツクと閉鎖材の内外両面に使用されるプラ
スチツクが同種類でない場合には、特に金型温度
のバラツキが大きく影響をあたえ、中には全く接
着していないものが発生する場合がある。 Another reason is that if the plastic used in the shoulder part and the plastic used on both the inner and outer surfaces of the closure material are not the same type, variations in mold temperature will have a large effect, and some may not adhere at all. things may occur.
これらの欠点については、多くの工程を一台の
成形機で処理する関係上、長時間ノンストツプ運
転を続けることは不可能に近く、又、閉鎖材は成
形性とラミネート性、耐薬品性が要求され、一
方、肩部から口頭部にかけてのプラスチツクに
は、加工性、耐ストレスクラツク性が要求され、
これらのいくつかの条件を全部解消できるもの
を、同一種類のプラスチツクの中から選びだすこ
とは困難である。 Regarding these drawbacks, since many processes are processed in one molding machine, it is almost impossible to continue non-stop operation for a long time, and the closure material requires moldability, lamination property, and chemical resistance. On the other hand, the plastic from the shoulder part to the mouth part is required to have good workability and stress crack resistance.
It is difficult to select a plastic of the same type that can meet all of these conditions.
本発明は以上の点に鑑み、いかなる条件の下で
も常に閉鎖材を強固に接合することを目的とする
ものである。 In view of the above points, it is an object of the present invention to always firmly join closure members under any conditions.
問題点を解決するための手段
本発明は、合成樹脂材料を用い、成形型とマン
ドレルによつてチユーブの胴部と肩部から口頭部
にかけて注型成形により一体に成形するに当り、
マンドレル先端に通路閉鎖材を嵌着して成形する
ことによつて、通路閉鎖材もチユーブの肩部から
口頭部と一体に成形し、成形後通路閉鎖材と肩部
から口頭部との接合部を再加熱処理することを特
徴とする通路閉鎖材付チユーブの製造方法であ
る。Means for Solving the Problems The present invention uses a synthetic resin material and integrally molds the body, shoulder and mouth of the tube by cast molding using a mold and a mandrel.
By fitting the passage closing material to the tip of the mandrel and molding it, the passage closing material is also molded integrally with the mouth part from the shoulder of the tube, and after molding, the joint between the passage closing material and the shoulder part to the mouth part is formed. This is a method for manufacturing a tube with a passage closing material, characterized by subjecting the tube to a reheating treatment.
上記において、胴部並びに通路閉鎖材は、例え
ば金属箔、紙等を心材とし、これに合成樹脂層を
積層してなる積層材が好適に用いられるが、合成
樹脂のみの単層又は積層材でもよい。そして、通
路閉鎖材は有低カツプ状の形をしたもので、底は
通路を閉鎖する部分となり、その他は口頭部の一
部から肩部の内側を覆つて胴部の先端付近に達す
るものである。その材料の一例を挙げると、アル
ミニウム箔を心材とし、内側面が耐薬品性材料、
例えばポリプロピレン等の合成樹脂層よりなり、
口頭部および肩部と接合する側が、該口頭部およ
び肩部と摂合し易い合成樹脂例えばポリエチレン
層よりなる積層材により構成されたたものがあ
る。 In the above, for the body and the passage closing material, a laminated material made of metal foil, paper, etc. as a core material and a synthetic resin layer laminated thereon is preferably used, but a single layer or a laminated material of only synthetic resin is also used. good. The passage closing material is shaped like a low cup, with the bottom part serving as the part that closes the passage, and the other part extending from part of the mouth part to the inside of the shoulder part and reaching near the tip of the torso. be. An example of this material is aluminum foil as the core material, and the inner surface made of chemical-resistant material.
For example, it is made of a synthetic resin layer such as polypropylene,
There is one in which the side that joins the mouth part and the shoulder part is made of a laminated material made of a synthetic resin, such as a polyethylene layer, which easily blends with the mouth part and the shoulder part.
又、肩部から口頭部にかけて注型成形する合成
樹脂材料としては、例えばポリエチレンが挙げら
れる。 Furthermore, examples of the synthetic resin material to be cast-molded from the shoulder portion to the mouth portion include polyethylene.
作 用
チユーブの肩部から口頭部にかけて注型成形す
る際に通路閉鎖材を同時に接合し、再加熱処理に
よつてその接合を一層強固ならしめるものであ
る。Function: When casting from the shoulder to the mouth of the tube, the passage closing material is bonded at the same time, and the bond is further strengthened by reheating.
実施例
実施例を図面に基づいて説明すると、マンドレ
ル１の先端に、第２図に示すような積層材製で閉
鎖部ａと拡がり部ｂとにより構成される通路閉鎖
材２を嵌着し、又周囲には積層材製の胴部３を挿
着する。胴部３の先端はマンドレル１の肩部より
多少突出せしめてある。Example An example will be described based on the drawings. A passage closing member 2 made of a laminated material and consisting of a closing part a and a widening part b as shown in FIG. 2 is fitted to the tip of a mandrel 1. Further, a trunk section 3 made of laminated material is inserted around the periphery. The tip of the body 3 is made to protrude somewhat from the shoulder of the mandrel 1.
ついで、第３図に示すように、上記のようにし
たマンドレル３の先端部分を分割型４のキヤビテ
イ５内に挿入し、該キヤビテイ５内に合成樹脂６
を充填硬化せしめて、胴部３、通路閉鎖材２とと
もに口頭部から肩部を一体に成形する。このと
き、チユーブの口頭部の外側には螺糸７を同時に
形成する。 Next, as shown in FIG.
is filled and hardened, and the mouth part and shoulder part are integrally molded together with the body part 3 and the passage closing material 2. At this time, a thread 7 is simultaneously formed on the outside of the mouth of the tube.
合成樹脂が硬化後、分割型４より成型品を取出
し、第４図に示すように、成形品の口頭部から肩
部にかけて高周波コイル８内に挿入し、高周波誘
導加熱により、該部分を再加熱処理する。 After the synthetic resin has hardened, the molded product is taken out from the split mold 4, and as shown in FIG. 4, the molded product is inserted into a high-frequency coil 8 from the mouth to the shoulder, and this part is reheated by high-frequency induction heating. Process.
この再加熱処理は、製品にヤツプを嵌めた後で
もよいし、成形機から製品を取出した後、別工程
で行なつても良い。 This reheating treatment may be performed after the product is fitted with a yapple, or may be performed in a separate process after the product is removed from the molding machine.
第５図はキヤツプ９を嵌めた状態の本発明品の
一部断面正面図である。 FIG. 5 is a partially sectional front view of the product of the present invention with the cap 9 fitted.
前記再加熱処理をしない場合、口頭部１３と通
路閉鎖材２との接合部の特にコーナー部１０の接
合状態が一定せず、使用時に針で閉鎖部ａを突き
破ろうとすると、コーナー部１０から剥離して、
通路閉鎖材２が内方へ落ち込んでしまうことがあ
るが、本発明ではそのようなことがなく、常に閉
鎖部ａを突き破ることができる。 If the reheating treatment is not performed, the joint state of the joint between the oral part 13 and the passage closing material 2, especially at the corner part 10, will not be constant, and if an attempt is made to pierce the closing part a with a needle during use, it will break from the corner part 10. Peel it off,
Although the passage closing member 2 may fall inward, this does not occur in the present invention, and the passage closing member 2 can always break through the closing portion a.
発明の効果
本発明によれば、合成樹脂のチユーブで、口頭
部に通路閉鎖材を設け、内容物の変質を防止する
とともに、該通路閉鎖材は接合が確実で、使用時
にこれを確実に突き破ることができるようにした
チユーブが得られる。Effects of the Invention According to the present invention, a tube made of synthetic resin is provided with a passage closing material at the mouth part to prevent the contents from deteriorating in quality, and the passage closing material is reliably joined and can be reliably pierced during use. You will get a tube that allows you to do this.
第１図は、本発明の実施例を説明するためのも
ので、マンドレルに通路閉鎖材と胴部を取付けた
状態を示す断面図、第２図は通路閉鎖材の斜視
図、第３図は口頭部から肩部の成形時の断面図、
第４図は再加熱処理時の断面図、第５図は製品の
一部断面図、第６図ないし第８図は先行チユーブ
の断面図をそれぞれ示す。
１……マンドレル、２……通路閉鎖材、３……
胴部、４……分割型、５……キヤビテイ、６……
合成樹脂、７……螺糸、８……高周波コイル、９
……キヤツプ、１０……コーナー部、１１……チ
ユーブ、１２……肩部、１３……口頭部、１４…
…積層材製挿入物、ａ，a′……閉鎖部、ｂ……拡
がり部。
FIG. 1 is a cross-sectional view showing a state in which a passage closing material and a body are attached to a mandrel, FIG. 2 is a perspective view of the passage closing material, and FIG. 3 is a diagram for explaining an embodiment of the present invention. Cross-sectional view from the mouth part to the shoulder part during molding,
FIG. 4 is a sectional view during reheating treatment, FIG. 5 is a partial sectional view of the product, and FIGS. 6 to 8 are sectional views of the preceding tube. 1... Mandrel, 2... Passage closing material, 3...
Body, 4...Divided type, 5...Cavity, 6...
Synthetic resin, 7... Screw, 8... High frequency coil, 9
...Cap, 10...Corner part, 11...Tube, 12...Shoulder part, 13...Oral part, 14...
...Insert made of laminated material, a, a'...closed part, b...expanded part.
Claims (1)
よつてチユーブの胴部と肩部から口頭部にかけて
注型成形により一体に成形するに当り、マンドレ
ル先端に通路閉鎖材を嵌着して成形することによ
つて、通路閉鎖材もチユーブの肩部から口頭部と
一体に成形し、成形後通路閉鎖材と肩部から口頭
部との接合部を再加熱処理することを特徴とする
通路閉鎖材付チユーブの製造方法。1 Using a synthetic resin material, when integrally molding the tube from the body and shoulder to the mouth using a mold and a mandrel, a passage closing material is fitted to the tip of the mandrel. With a passage closing material, the passage closing material is also molded integrally with the mouth part from the shoulder part of the tube, and after molding, the joint part between the passage closing material and the shoulder part to the mouth part is reheated. How to make tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60029480A JPS61189911A (en) | 1985-02-19 | 1985-02-19 | Manufacture of tube with passage closing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60029480A JPS61189911A (en) | 1985-02-19 | 1985-02-19 | Manufacture of tube with passage closing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61189911A JPS61189911A (en) | 1986-08-23 |
| JPH0464286B2 true JPH0464286B2 (en) | 1992-10-14 |
Family
ID=12277247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60029480A Granted JPS61189911A (en) | 1985-02-19 | 1985-02-19 | Manufacture of tube with passage closing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61189911A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02299819A (en) * | 1989-05-15 | 1990-12-12 | Dainippon Printing Co Ltd | Manufacture of pouring-out port |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526283A (en) * | 1975-06-27 | 1977-01-18 | Maegerle Karl | Packaging tube |
| JPS576735A (en) * | 1980-06-14 | 1982-01-13 | Tochisen Kasei Kogyo Kk | Manufacture of plastic squeeze tube |
| JPS5772784A (en) * | 1980-08-26 | 1982-05-07 | Automation Industrielle Sa | Die welding coiling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121345U (en) * | 1983-02-03 | 1984-08-15 | 凸版印刷株式会社 | extruded tube container |
-
1985
- 1985-02-19 JP JP60029480A patent/JPS61189911A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526283A (en) * | 1975-06-27 | 1977-01-18 | Maegerle Karl | Packaging tube |
| JPS576735A (en) * | 1980-06-14 | 1982-01-13 | Tochisen Kasei Kogyo Kk | Manufacture of plastic squeeze tube |
| JPS5772784A (en) * | 1980-08-26 | 1982-05-07 | Automation Industrielle Sa | Die welding coiling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61189911A (en) | 1986-08-23 |
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