JPH02299819A - Manufacture of pouring-out port - Google Patents

Manufacture of pouring-out port

Info

Publication number
JPH02299819A
JPH02299819A JP1121028A JP12102889A JPH02299819A JP H02299819 A JPH02299819 A JP H02299819A JP 1121028 A JP1121028 A JP 1121028A JP 12102889 A JP12102889 A JP 12102889A JP H02299819 A JPH02299819 A JP H02299819A
Authority
JP
Japan
Prior art keywords
pouring
spout
out port
aluminum
aluminum membrane
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
Application number
JP1121028A
Other languages
Japanese (ja)
Inventor
Yoshio Iida
祥雄 飯田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP1121028A priority Critical patent/JPH02299819A/en
Publication of JPH02299819A publication Critical patent/JPH02299819A/en
Pending legal-status Critical Current

Links

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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases
    • B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers

Abstract

PURPOSE:To obtain easily and at high efficiency a pouring-out port whose gas barrier properties are high, by a method wherein after formation of the pouring-out port which is obtained by sticking an aluminum membrane to the rear with insert molding, high-frequency induction heating of the aluminum membrane is performed. CONSTITUTION:An aluminum membrane 6 is set up within a mold of an injection molding device and then insert molding where molten resin is injected into the die is performed. After cooling and solidification of injecting resin, a completed pouring-out port 4 is taken out of the mold and the aluminum membrane 6 of the pouring-out port 4 is high-frequency-induction-heated. The high-frequency induction heating can be performed by electrifying a high-frequency induction heating coil 7 by positioning the pouring-out port 4 underneath the high-frequency induction heating coil 7 by turning the aluminum membrane 6 upward. With this construction, an aluminum foil 6B is heated, thermoplastic resin layers 6A, 6C on the top and bottom of the aluminum foil 6B are molten and a resin layer 6A is stuck firmly to the rear of a pouring-out port main body 5. Then end surfaces of the resin layers 6A, 6C are stuck reliably to a hollow side surface 5F of the rear of the pouring-out port main body 5 and an end surface of the aluminum foil 6B is protected.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、牛乳、ジュース、酒、゛その他の清涼飲料等
の内容物を収容する紙容器に取付ける注出口の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a spout to be attached to a paper container containing contents such as milk, juice, alcohol, and other soft drinks.

〔従来の技術〕[Conventional technology]

飲料用液の容器として、第５図に示すような紙容器１が
広く使用されている。この紙容器１には、第６図に拡大
して示すように、キャップ２を備えた注出口３が取付け
られている。注出口３は１紙容器ｌの壁面に接合するた
めのっぽ部３Ａと、キャップ２を取付けるための注出口
部３Ｂと、注出口部３Ｂを密封するための密封部３Ｃと
、密封部３Ｃを開封するためのスコア部３Ｄと、スコア
部３Ｄに囲まれた部分を引っ張って開封するためのブル
リング部３Ｅ等を備えており１通常プラスチックの射出
成型によって製造されている。A paper container 1 as shown in FIG. 5 is widely used as a container for liquid beverages. As shown in an enlarged view in FIG. 6, this paper container 1 has a spout 3 equipped with a cap 2 attached thereto. The spout 3 has a tail portion 3A for joining to the wall of the paper container l, a spout portion 3B for attaching the cap 2, a sealing portion 3C for sealing the spout portion 3B, and an unsealing portion 3C. It is usually manufactured by injection molding of plastic.

注出口３を紙容器ｌに取付けるには２紙容器ｌに形成し
た穴に、壁面内部から注出口３の注出口部３Ｂを突き出
させ１紙容器壁面とつば部３Ａとを注出口部３Ｂを取り
囲む環状に、超音波シールしていた。To attach the spout 3 to the paper container l, 2. Make the spout part 3B of the spout 3 stick out from inside the wall surface into a hole formed in the paper container l; The surrounding ring was ultrasonically sealed.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら、注出口３をプラスチックのみによって製
造した場合には、スコア部でのガスバリア性が不足する
という問題があった。However, when the spout 3 was manufactured only from plastic, there was a problem that the gas barrier properties at the score portion were insufficient.

この問題を解決するには、注出口３の密封部３Ｃ及びつ
ば部３Ａの裏面に、ガスバリア性の高いフィルム。To solve this problem, a film with high gas barrier properties is applied to the back surface of the sealing part 3C and the collar part 3A of the spout 3.

例えば、アルミ箔を接着すればよく、また、このアルミ
箔を備えた注出口を容易に製造するには、アルミ箔の両
面に熱熔融性の樹脂層を形成したアルミメンブレンを用
意し、このアルミメンブレンを注出口成型用の金型にセ
ットし、その後溶融樹脂を金型に注入するというインサ
ート成型を行えばよい、そこで、このインサート成型に
よって、第４図に示すように、プラスチックからなる注
出口本体５の裏面にアルミメンブレン６　　（ＰＥ層６
Ａ／アルミ箔６Ｂ／ＰＥ層６Ｃ）を備えた注出口４を製
造した。For example, it is enough to glue aluminum foil, and in order to easily manufacture a spout equipped with aluminum foil, prepare an aluminum membrane with a hot-melt resin layer formed on both sides of aluminum foil, and Insert molding can be performed by setting the membrane in a spout molding mold and then injecting the molten resin into the mold.As shown in Figure 4, this insert molding creates a plastic spout. An aluminum membrane 6 (PE layer 6
A pouring spout 4 equipped with aluminum foil 6B/PE layer 6C was manufactured.

ところが、このアルミメンブレン６を備えた注出口４を
超音波シールによって紙容器に取付けたところ５次のよ
うな問題が発生することが判明した。However, when the spout 4 equipped with the aluminum membrane 6 was attached to a paper container using an ultrasonic seal, it was found that the following problem occurred.

（１）紙容器への超音波シール時、スコア切れし、アル
ミクラックを生じる。(1) During ultrasonic sealing on paper containers, the score breaks and aluminum cracks occur.

（２）　　ブルリング部５Ｅを引っ張って開封した時、
アルミメンブレンの一部が開口部に残ることがあり、注
ぎにくくなる。(2) When opening the package by pulling the bull ring part 5E,
Part of the aluminum membrane may remain in the opening, making pouring difficult.

（３）アルミメンブレンの端面部のアルミが腐食するこ
とがある。(3) The aluminum on the end face of the aluminum membrane may corrode.

本発明はこのような欠点を解消した注出口の製造方法を
提供せんとするものである。The present invention aims to provide a method for manufacturing a pouring spout that eliminates these drawbacks.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者等は、上記欠点の原因を検討した結果、これら
がアルミメンブレンの接着力不足に起因して生じている
ことを見出した。すなわち、インサート成型では、アル
ミメンブレンの接着は成型時の溶融した樹脂により行わ
れるが、第４図に示す注出口をインサート成型する際に
は、溶融樹脂を注入するゲート口が通常中心のＡ点に設
けられており、ゲート口から遠いほど接着が弱くなる。As a result of examining the causes of the above-mentioned defects, the present inventors found that these were caused by insufficient adhesive strength of the aluminum membrane. In other words, in insert molding, the aluminum membrane is bonded with the molten resin during molding, but when insert molding the spout shown in Figure 4, the gate port for injecting the molten resin is usually located at the central point A. The further the gate is from the gate, the weaker the adhesion becomes.

特に、アルミメンブレンの端面の接着が弱く、この部分
からアルミ箔が腐食することがある。また、スコア部で
はその部分を流れる樹脂の流速が大きいため、この部分
の接着が弱く、上記の問題の原因となっていた。In particular, the adhesion at the end face of the aluminum membrane is weak, and the aluminum foil may corrode from this area. Furthermore, since the flow rate of the resin flowing through the score portion is high, the adhesion in this portion is weak, causing the above-mentioned problem.

本発明者等は、このアルミメンブレンの接着力不足を解
決する方法を種々検討した結果、アルミメンブレンをイ
ンサート成型した注出口に対して、単に高周波誘導加熱
を謄すことにより、アルミメンブレンの接着力が極めて
向上し、上記の問題点を解決しうろことを見出し８本発
明に到達したものである。すなわち２本発明は、アルミ
メンブレンのインサート成型により。The inventors of the present invention have investigated various ways to solve the problem of insufficient adhesion of the aluminum membrane, and have found that by simply applying high-frequency induction heating to the spout, which has an insert-molded aluminum membrane, the adhesion of the aluminum membrane can be improved. The inventors have found that the above problems can be solved and the present invention has been developed. In other words, the present invention uses insert molding of an aluminum membrane.

裏面にアルミメンブレンを接着した注出口を成型し。A spout with an aluminum membrane glued to the back is molded.

その後、アルミメンブレンを高周波誘導加熱することを
特徴とする注出口の製造方法を要旨とする。The gist of this invention is a method for manufacturing a spout, which is characterized by subjecting an aluminum membrane to high-frequency induction heating.

〔実施例〕〔Example〕

以下４図面を参照して本発明を更に詳細に説明する。 The present invention will be explained in more detail with reference to the following four drawings.

本発明方法によって製造する注出口４も第４図に示す形
状をしており、プラスチックからなる注出口本体５と、
その裏面に接着したアルミメンブレン６からなる。注出
口本体５は２紙容器１の壁面に接合するためのっぽ部５
Ａと、キャンプを取付けるための注出口部５Ｂと、注出
口部５Ｂを密封するための密封部５ｃと。The spout 4 manufactured by the method of the present invention also has the shape shown in FIG. 4, and has a spout main body 5 made of plastic,
It consists of an aluminum membrane 6 adhered to its back surface. The spout main body 5 has a tail portion 5 for joining to the wall of the paper container 1.
A, a spout part 5B for attaching the camp, and a sealing part 5c for sealing the spout part 5B.

密封部５Ｃを開封するためのスコア部５Ｄと２スコア部
５Ｄに囲まれた部分を引っ張って開封するためのブルリ
ング部５Ｅと、アルミメンブレン６の端面をシールする
ためのくぼみ側面５Ｆ等を備えている。注出口本体５は
熱可塑性樹脂１例えば、ポリエチレンがら構成される。It includes a score part 5D for opening the sealed part 5C and a bull ring part 5E for pulling and opening the part surrounded by the two-score part 5D, a recessed side surface 5F for sealing the end face of the aluminum membrane 6, etc. ing. The spout main body 5 is made of thermoplastic resin 1, for example polyethylene.

アルミメンブレン６は、熱可塑性樹脂層６Ａ／アルミ箔
６Ｂ／熱可塑性樹脂層６ｃを積層したものであり、アル
ミ箔６Ｂの両面に設ける熱可塑性樹脂層６Ａ、６Ｃは注
出口本体５の樹脂に対して接着性を有する材料１例えば
、ポリエチレンが選ばれる。樹脂層６Ａ、６Ｃの厚さと
しては４通常１５〜４０μ程度が選定される。アルミ箔
６Ｂは注出口本体５に対してガスバリア性及び強度を付
与するものであり２通常１５〜４０μ程度が選定される
。The aluminum membrane 6 is a laminated layer of a thermoplastic resin layer 6A/aluminum foil 6B/thermoplastic resin layer 6c, and the thermoplastic resin layers 6A and 6C provided on both sides of the aluminum foil 6B are in contrast to the resin of the spout body 5. For example, polyethylene is selected as the material 1 having adhesive properties. The thickness of the resin layers 6A and 6C is usually about 15 to 40 microns. The aluminum foil 6B provides gas barrier properties and strength to the spout body 5, and is usually selected to have a thickness of about 15 to 40 μm.

この注出口４を製造する本発明方法は、まず、アルミメ
ンブレン６を射出成型装置の金型内にセントシ。In the method of the present invention for manufacturing the spout 4, first, the aluminum membrane 6 is placed in a mold of an injection molding device.

その後、その金型にン容融樹脂を射出するインサート成
型を行う。射出樹脂の冷却、固化後、出来上がった注出
口４を金型から取り出し、その注出口４のアルミメンブ
レン６を高周波誘導加熱する。この高周波誘導加熱は、
第１図、第２図に示すように、その注出口４をアルミメ
ンブレン６を上向きにして高周波誘導加１ヘコイル７の
下に位置させ、高周波誘導加熱コイル７に通電すること
により丘うことができる。アルミメンブレン６を高周波
誘導加熱することにより、アルミ箔６Ｂが発熱し、その
上下面の熱可塑性樹脂層６Ａ、６Ｃが溶融し、樹脂層６
Ａが注出口本体５の裏面に強固に接着し、また、樹脂層
６Ａ、６Ｃの＠而が注出口本体５の裏面のくぼみ側面５
Ｆに確実に接着してアルミ箔６Ｂの端面を保護する。か
くして得られた注出口４は。Thereafter, insert molding is performed by injecting molten resin into the mold. After cooling and solidifying the injected resin, the finished spout 4 is taken out from the mold, and the aluminum membrane 6 of the spout 4 is heated by high frequency induction. This high frequency induction heating
As shown in FIGS. 1 and 2, the spout 4 is placed under the high-frequency induction heating coil 7 with the aluminum membrane 6 facing upward, and the high-frequency induction heating coil 7 is energized to prevent the formation of a sloppy surface. can. By high-frequency induction heating the aluminum membrane 6, the aluminum foil 6B generates heat, and the thermoplastic resin layers 6A and 6C on the upper and lower surfaces thereof melt, and the resin layer 6
A firmly adheres to the back surface of the spout main body 5, and the resin layers 6A and 6C are attached to the recessed side surface 5 on the back surface of the spout main body 5.
F to securely adhere to the aluminum foil 6B to protect the end face of the aluminum foil 6B. The spout 4 thus obtained is as follows.

紙容器１　（第５図参照）に超音波シールにて取付けた
際、スコア切れ、アルミクラックを生じることがなく。When attached to paper container 1 (see Figure 5) using ultrasonic sealing, no score breaks or aluminum cracks occur.

ブルリング部での開封時に、アルミメンブレンが開口部
に残り、注ぎにくくなるということがなく、またアルミ
箔の腐食を生じることがない。When the bull ring is opened, the aluminum membrane does not remain in the opening, making it difficult to pour, and the aluminum foil does not corrode.

上記の方法において、アルミメンブレン６を高周波誘導
加熱する時間は、アルミ箔６Ｂの上下の熱可塑性樹脂層
６Ａ、６Ｃを加熱溶融して注出口本体５に強硬に接着す
るに必要な時間であるが、樹脂層６Ａ、６Ｃは掻めて薄
いので短時間でよく７例えば１秒程度でよい。なお、ア
ルミメンブレン６に高周波誘導加熱を施す方法は、第１
図、第２図に示したバッチ式に限らず２種々変更可能で
ある。例えば１第３図に示すように。In the above method, the time for high-frequency induction heating of the aluminum membrane 6 is the time necessary to heat and melt the upper and lower thermoplastic resin layers 6A, 6C of the aluminum foil 6B and firmly adhere them to the spout body 5. Since the resin layers 6A and 6C are scratchable and thin, it may take only a short time (7, for example, about 1 second). Note that the method of applying high frequency induction heating to the aluminum membrane 6 is as follows.
It is not limited to the batch type shown in FIGS. For example, as shown in Figure 1.

高周波誘導加熱コイル７を並べておき、その下を注出口
４を矢印Ｂで示す方向に連続的に通過させる方法でもよ
い。その場合にも、アルミメンブレン６にその樹脂層が
熔融する程度の加熱を与えることができるよう。A method may also be used in which the high-frequency induction heating coils 7 are lined up and the spout 4 is continuously passed under them in the direction shown by the arrow B. Even in that case, it is possible to apply heat to the aluminum membrane 6 to such an extent that the resin layer melts.

高周波誘導加熱コイル７の個数、注出口４の移動速度等
が定められている。なお３この時、隣接した誘導加熱コ
イル７に流すｔ流の方向は互いに干渉することがないよ
う、矢印Ｃで示すように逆方向とすることが好ましい。The number of high-frequency induction heating coils 7, the moving speed of spout 4, etc. are determined. 3 At this time, it is preferable that the directions of the t currents flowing through the adjacent induction heating coils 7 be opposite directions as shown by arrow C so as not to interfere with each other.

〔発明の効果〕〔Effect of the invention〕

以上に説明したように１本発明方法は、アルミメンブレ
ンのインサート成型により、裏面にアルミメンブレンを
接着した注出口を成型し、その後５　アルミメンブレン
を高周波誘導加熱することを特徴とするものであるので
、ガスバリア性の高い注出口を容易に且つ高能率で製造
することができるという効果を有している。As explained above, the method of the present invention is characterized by molding a spout with an aluminum membrane adhered to the back side by insert molding an aluminum membrane, and then subjecting the aluminum membrane to high-frequency induction heating. This has the effect that a spout with high gas barrier properties can be manufactured easily and with high efficiency.

しかも、製造された注出口は１　アルミメンブレンが樹
脂の注出口本体に対して強く接着しており、かつアルミ
メンブレンの端面も確実に接着してアルミ箔端面が樹脂
層で覆われているので、この注出口を紙容器に超音波シ
ールにて取付けた際、スコア切れ、アルミクランクを生
じることがなく、ブルリング部での開封時に、アルミメ
ンブレンが開口部に残り、注ぎにくくなるということが
なく、更にアルミ箔の腐食を生しることがないという効
果を有している。Moreover, the manufactured spout has 1. The aluminum membrane is strongly adhered to the resin spout body, and the end face of the aluminum membrane is also securely adhered, and the end face of the aluminum foil is covered with a resin layer. When this spout is attached to a paper container using an ultrasonic seal, there will be no score breakage or aluminum cranking, and when the seal is opened at the bull ring, the aluminum membrane will not remain in the opening and make pouring difficult. Furthermore, it has the effect of not causing corrosion of the aluminum foil.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明方法におけるアルミメンブレンの高周波
誘導加熱の状態を示す概略断面図、第２図はその平面図
、第３図は高周波誘導加熱の他の例を示す概略平面図、
第４図はアルミメンブレンを備えた注出口を示す断面図
、第５図は一般的な紙容器の概略斜視図。 第６図はその紙容器に使用されている従来の注出口を示
す概略断面図である。 ｌ゛祇容器、２−キャップ、３−・注出口、４−・注出
０．５−注出口本体、６−・−アルミメンブレン、６Ａ
。 ６　Ｃ−一熱可塑性樹脂層、６Ｂ−アルミ箔１７・−高
周波誘導加熱コイル。 代理人　弁理士　乗　松　恭　三 ４−、　；ｉ上口 牙１図　　　　牙２図 牙３図 牙・４図FIG. 1 is a schematic cross-sectional view showing the state of high-frequency induction heating of an aluminum membrane in the method of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a schematic plan view showing another example of high-frequency induction heating.
FIG. 4 is a sectional view showing a spout equipped with an aluminum membrane, and FIG. 5 is a schematic perspective view of a general paper container. FIG. 6 is a schematic cross-sectional view showing a conventional spout used in the paper container. l゛Gi container, 2-cap, 3--spout, 4--pour 0.5-spout main body, 6--aluminum membrane, 6A
. 6C--thermoplastic resin layer, 6B-aluminum foil 17--high frequency induction heating coil. Agent: Patent Attorney Kyo Matsu 34-;

Claims (1)

【特許請求の範囲】[Claims] アルミメンブレンのインサート成型により、裏面にアル
ミメンブレンを接着した注出口を成型し、その後、アル
ミメンブレンを高周波誘導加熱することを特徴とする注
出口の製造方法。A method for producing a spout, which is characterized by molding a spout with an aluminum membrane adhered to the back side by insert molding an aluminum membrane, and then heating the aluminum membrane by high-frequency induction.
JP1121028A 1989-05-15 1989-05-15 Manufacture of pouring-out port Pending JPH02299819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1121028A JPH02299819A (en) 1989-05-15 1989-05-15 Manufacture of pouring-out port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1121028A JPH02299819A (en) 1989-05-15 1989-05-15 Manufacture of pouring-out port

Publications (1)

Publication Number Publication Date
JPH02299819A true JPH02299819A (en) 1990-12-12

Family

ID=14801030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1121028A Pending JPH02299819A (en) 1989-05-15 1989-05-15 Manufacture of pouring-out port

Country Status (1)

Country Link
JP (1) JPH02299819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002520093A (en) * 1998-07-11 2002-07-09 フレセニウス・アクチエンゲゼルシャフト Sterile connectors for containers containing medical liquids

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746836A (en) * 1980-03-25 1982-03-17 Metal Box Co Ltd Method and device for sealing and attaching plastic material to metallic base material
JPS61189911A (en) * 1985-02-19 1986-08-23 Nissho Insatsusho:Kk Manufacture of tube with passage closing material
JPS6341109A (en) * 1986-08-06 1988-02-22 Mikasa Sangyo Kk Manufacture of tapping hole of receptacle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746836A (en) * 1980-03-25 1982-03-17 Metal Box Co Ltd Method and device for sealing and attaching plastic material to metallic base material
JPS61189911A (en) * 1985-02-19 1986-08-23 Nissho Insatsusho:Kk Manufacture of tube with passage closing material
JPS6341109A (en) * 1986-08-06 1988-02-22 Mikasa Sangyo Kk Manufacture of tapping hole of receptacle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002520093A (en) * 1998-07-11 2002-07-09 フレセニウス・アクチエンゲゼルシャフト Sterile connectors for containers containing medical liquids

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