JPS60229730A - 合成樹脂三層缶胴の製造方法 - Google Patents

合成樹脂三層缶胴の製造方法

Info

Publication number
JPS60229730A
JPS60229730A JP59085755A JP8575584A JPS60229730A JP S60229730 A JPS60229730 A JP S60229730A JP 59085755 A JP59085755 A JP 59085755A JP 8575584 A JP8575584 A JP 8575584A JP S60229730 A JPS60229730 A JP S60229730A
Authority
JP
Japan
Prior art keywords
layer
preform
molded
molding
cut
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.)
Granted
Application number
JP59085755A
Other languages
English (en)
Other versions
JPH043729B2 (ja
Inventor
Daiichi Aoki
大一 青木
Hiroyuki Orimoto
宏行 折元
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.)
Nissei ASB Machine Co Ltd
Original Assignee
Nissei ASB Machine 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 Nissei ASB Machine Co Ltd filed Critical Nissei ASB Machine Co Ltd
Priority to JP59085755A priority Critical patent/JPS60229730A/ja
Priority to MX205105A priority patent/MX165007B/es
Priority to CA000479694A priority patent/CA1265072A/en
Priority to AR85300181A priority patent/AR242168A1/es
Priority to KR1019850002828A priority patent/KR920000004B1/ko
Priority to ES542618A priority patent/ES8606083A1/es
Priority to ZA853140A priority patent/ZA853140B/xx
Priority to EP85400831A priority patent/EP0161185A3/en
Priority to AU41730/85A priority patent/AU584081B2/en
Priority to BR8502086A priority patent/BR8502086A/pt
Publication of JPS60229730A publication Critical patent/JPS60229730A/ja
Priority to ES1985290412U priority patent/ES290412Y/es
Priority to CA000615560A priority patent/CA1277608C/en
Priority to CA000615561A priority patent/CA1277466C/en
Publication of JPH043729B2 publication Critical patent/JPH043729B2/ja
Granted 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
    • B29C49/4278—Cutting
    • 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
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B29C66/1352—Single hem to hem joints
    • 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
    • B29C66/51—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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29C66/612—Making circumferential joints
    • 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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed of laminated material
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3016—Preforms or parisons made of several components at body portion
    • B29C2949/3018—Preforms or parisons made of several components at body portion partially
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/302—Preforms or parisons made of several components at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
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    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
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    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
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    • B29C2949/303—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components having more than three components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • B29C2949/3034—Preforms or parisons made of several components having components being injected having two or more components being injected
    • B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/30—Preforms or parisons made of several components
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    • B29C2949/3036—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected
    • B29C2949/3038—Preforms or parisons made of several components having components being injected having two or more components being injected having three or more components being injected having more than three components being injected
    • 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
    • B29C66/7234—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 barrier layer
    • B29C66/72341—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 barrier layer for gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/306—Resistant to heat
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2307/514—Oriented
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/66—Cans, tins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 ［産業上の利用分野コ この発明は延伸吹込成形を用いて合成樹脂製の三層缶胴
を製造する方法に間するものである。
［従来の技術］ ポリエチレンテレフタレート、塩化ビニールなどの熱可
塑性樹脂によるびんは、種々の容器に使用されている。
特にポリエチレンテレフタレートを延伸吹込成形して得
られたびんは、二軸配向によって比較的ガスバリヤ性が
よく、また剛性をも有することなどから、炭酸飲料を始
め果汁、酒、ビールなどの容器として広く使用されつつ
ある。
しかしながら、延伸吹込成形による容器は、その成形の
過程において、押出または射出成形されたパリソンの口
部、即ち一般にネック部またはリップ部と称されている
ところを挾持して成形を行っており、その挟持部分まで
をも肉薄に延伸することができない。このためパリソン
の口部は押出または射出成形されたままで、配向されて
おらず、強度も劣り、厚肉で固いことなどのことから、
金属蓋の嵌着は可能であっても、缶の場合のように巻き
締めを行うことは不可能とされている。したがって、パ
リソンの口部をいかに大径に形成しても、延伸吹込成形
した容器を、そのまま缶胴として使用ｊることはできな
い。
そこで本発明者は、延伸吹込成形された薄肉の容器を、
合成樹脂製缶胴として用いべく種々研究を重ねた結果、
容器を切断することによって、胴部と底部とが一体の缶
胴とすることができる方法を先に見出したのである。
この方法はポリエチレンテレフタレートなどの熱可塑性
樹脂による有底のプリフォームを成形する工程と、その
プリフォームから胴部の上端が外方へ張り出したびん状
の中空体を延伸吹込成形する工程と、その中空体を上記
張出部にて切断し、張出部の下辺による少なくとも横向
きの開口縁を有する胸部と、底部とが一体形成された缶
胴となす工程とからなるもので、充分に延伸され開口縁
は金属話の周縁と共に巻き締めて折損することはなかっ
た。
［発明が解決しようとする問題点］ しかしながら、上記方法にあっては、プリフォーム全体
が単一樹脂からなるため、切除した張出部を再び材料樹
脂として使用できることから、材料ロスがきわめて少な
いが、缶胴の耐熱性の向上や更にガスバリヤ性を付与す
るために、それらの性能を有する樹脂またはガラス繊維
などの物性が異なった材料を、中間層として加えた全体
が三層のプリフォームを用いた場合には、切除された中
空体の張出部は、材料樹脂として再び使用することがで
きず、成形上のロスとして処理される。
したがって単層の缶胴に比べて、三層の缶胴はコスト高
となり、耐熱性やガスバリヤ性が単層のときよりも優れ
ていても、実際には使用し難いものとなる。また切断個
所から層間に空気が入って剥離が生ずるなどの新たな問
題をも有する。
［問題点を解決するための手段］ そこで本発明者は三層缶胴の成形方法について更に検討
した結果、中空体の缶胴として用いられる部分のみを三
層に成形し、切除される張出部を単層に形成することに
よって上記問題点を解し得ることを見出したのである。
この新たな三層缶胴の成形方法は、ポリエチレンテレフ
タレートなどの熱可塑性樹脂による内外層と、その内外
層よりもガスバリヤ性、耐熱性などに優れ、かつ延伸可
能な材料からなる中間層を、缶胴の開口部に当る部分ま
で有する三層のプリフォームを成形し、そのプリフォー
ムから胴部上端が中間層の上端位置より外方へ張出した
びん状の中空体を延伸吹込成形し、その張出部の下辺に
て中空体を切断して、その下辺による巻込縁を開口部に
有する胸部と、該胴部と共に三層に形成された空部とか
らなる缶胴に成形してなることを特徴とするものである
。
上記中間層としては、内外層よりも結晶化速度の早いポ
リエチレンテレフタレート、ポリアミド系樹脂、ポリエ
チレンテレフタレートとポリアミド系樹脂のブレンド、
ポリアミド系樹脂または内外層を形成する樹脂とガラス
繊維との混線材料などが上げられる。
［作　用］ 上記方法にあっては、プリフォーム成形時に、中間層の
位置をプリフォームを延伸吹込成形して形成した中空体
の張出部の下辺までとし、張出部より上部は内外層を形
成する樹脂のみをもって形成したことから、下辺にて切
断された張出部は、そのままで再び材料樹脂として使用
することができる。また中間層として使用された材料も
、そのほとんどが缶胴の中間層として無駄なく用いられ
ることから、材料のロスはきわめて僅かとなり、中空体
の一部を切除して成形する三層の缶胴でありながら、コ
スト高となるようなことがない。
更にこの発明を図示の実施例により詳細に説明する。
［実施例コ 第１図 一般に知られている三層成形法を用いて、有底で三層の
プリフォーム１を形成する。この場合、中間層２はネッ
ク部３の下部までとし、外１１１ａ及び内層１ｂと共に
ネック部３とその下部を同一樹脂により形成する。この
三層のプリフォーム１をネック型４によりネック部３を
挾持して射出金型Ａから離型し、温調部へ移送する。図
は省略したがこの温調部にて成形時に生じた濃度むらを
均−にづると共に、ブリフｔ−ム温麿を延伸吹込成形に
適した温度に調整する。そして温調後にネック部３を挟
持したまま延伸吹込部ヘプリフＡ−ム１を移送する。
第２図 上記ブラフ４−ム１を予め準備された中空体成形用の吹
込金型Ｂに、ネック型４で挟持したネック部３を除いて
挿入する。この吹込金型Ｂのキャビティ上部には張出部
成形用の凹所があり、この凹所に中間層２の１端が位置
する。
次に伸長ロッド５をネック型４の上方からプリフォーム
に１内に挿入して軸方向に延伸すると共に、空気を吹込
んで半径方向に膨張させて、胴部６ａど底部６ｂ及び胴
部６ａの上部に張出部７を一体に有する中空体６に成形
する。この成形により上記ブリフＡ−ム１の外層１ａど
内層１ｂ及び中間層２は、そのままの状態で中空体６の
内外層及び中間層となり、中空体６は底部６ｂから張出
部７の下辺７ａまで三層構造となる。
この場合、胴部６ａと張出部７の境を図示のように内方
へ若干弯曲して凹溝に形成して置くと、後記覆る金属蓋
の巻き線繊と胴部６ａとをほぼ同一面に形成することが
できる。
上記のようにして成形された中空体６の胴部６ａの肉厚
は、はとんど均一であり、また二軸配向によって薄肉な
がら、強度を有し、折曲応力が増す。特に張出部７は胴
部６ａよりも延伸されているので、折曲げても破断する
ようなことがない。
第３図及び第４図 上記中空体６を吹込金型Ｂから離型したのち、上記張出
部７にて中空体６の切断を行う。この切断は、中空体６
をネック型４から外し、予め準備された切断機を使用し
て行う。また切断個所は、張出部７の単層に形成された
下辺７ａとし、切断によって、胴部の開口端に横向きの
巻込縁８を有する三層の缶胴９となす。
このようにして成形された缶胴９は、巻込Ｒ８の先端か
ら底部６ｂまで二軸配向されたものとなり、かつまた中
間層２によってガスバリヤ性または耐熱性が一段と向上
したものとなる。
上記実施例では、底部６ｂを耐圧構造に成形しているが
、内圧を考慮する必要のない内容物の缶に使用する場合
は、底部６ｂの構造を通常の合成樹脂製びんなどの底部
と同様に成形される。
第５図は上記缶胴９の巻込縁８を、開封部材を有する通
常の金属蓋１０と共に巻き締めて製造した缶１１を示す
もので、金属蓋１０による缶胴９の密封は、内容物を充
填したのちに、巻込縁上に載置した上記金属蓋１０の周
縁１０ａと、巻込縁８とを通常のごとく第６図に示すよ
うに巻き締めて行われる。
［発明の効果］ この発明は上述のように、缶胴となる部分のみを三層と
し、巻込縁を形成するために切除される中空体の張出部
より上部は単層となるように、予めプリフォームを三層
に成形した上で、三層缶胴を成形したことから、切除し
た張出部を単層の場合と同様に材料樹脂として再使用す
ることができ、また中間層は切除されずにそのほとんど
が有効に用いられるため、ａｌｉ［ｌな材料をも中間層
として使用でき、それにより耐熱性やガスバリヤ性が更
に一段と向上した三層缶胴を経済的に製造することがで
きる。また切断個所は単層であるから、層間に空気が入
って剥離現象が生ずることがないなどの特長を有する。
【図面の簡単な説明】
図面はこの発明に係る合成樹脂三層缶胴の製造方法の１
実施例を示すもので、第１図から第４図は三層缶胴の製
造工程を一部拡大して順に示す縦断面図、第５図は合成
樹脂三層缶の正面図、第６図は缶の巻き線部分の縦断面
図である。 １・・・プリフォーム　１ａ・・・外層１ｂ・・・内層
　２・・・中間層 ６・・・中空体　６ａ・・・胴部 ７・・・張出部　７ａ・・・下辺 ８・・・巻込縁　９・・・缶胴 第１図 第２図 ｂｏ　二一二 第３図 第４図 ｌａ Ｌ２ 第５図 ０ 第６図 ０

Claims (1)

    【特許請求の範囲】
  1. ポリエチレンテレフタレートなどの熱可塑性樹脂による
    内外層と、その内外層よりもガスバリヤ性、耐熱性など
    に優れ、かつ延伸可能な材料からなる中間層を、缶胴の
    開口部に当る部分まで有する三層のプリフォームを成形
    し、そのプリフォームから胴部上端が中間層の上端位置
    より外方へ張出したびん状の中空体を延伸吹込成形し、
    その張出部の下辺にて中空体を切断して、その下辺によ
    る巻込縁を開口部に有する胴部と、該胴部と共に三層に
    形成された底部とからなる缶胴に成形してなることを特
    徴とする合成樹脂三層缶胴の製造方法。
JP59085755A 1984-04-27 1984-04-27 合成樹脂三層缶胴の製造方法 Granted JPS60229730A (ja)

Priority Applications (13)

Application Number Priority Date Filing Date Title
JP59085755A JPS60229730A (ja) 1984-04-27 1984-04-27 合成樹脂三層缶胴の製造方法
MX205105A MX165007B (es) 1984-04-27 1985-04-02 Un cuerpo de lata o vaso de resina sintetica de capas multiples y un metodo para la fabricacion del mismo
CA000479694A CA1265072A (en) 1984-04-27 1985-04-22 Multi-layer synthetic resin can body and method for manufacturing the same
AR85300181A AR242168A1 (es) 1984-04-27 1985-04-25 Un cuerpo de tarro de resina sintetica de capas multiples y metodo para fabricarlo.
EP85400831A EP0161185A3 (en) 1984-04-27 1985-04-26 Multi-layer synthetic resin can body and method for manufacturing the same
ES542618A ES8606083A1 (es) 1984-04-27 1985-04-26 Un cuerpo de envase de resina sintetica y capas multiples
ZA853140A ZA853140B (en) 1984-04-27 1985-04-26 Multi-layer synthetic resin can body and method for manufacturing the same
KR1019850002828A KR920000004B1 (ko) 1984-04-27 1985-04-26 다층 합성수지제 캔 몸체 및 그 제조방법
AU41730/85A AU584081B2 (en) 1984-04-27 1985-04-26 Multi-layer synthetic resin can body and method for manufacturing the same
BR8502086A BR8502086A (pt) 1984-04-27 1985-04-29 Frasco de multiplas camadas de resina sintetica e metodo de fabricacao do mesmo
ES1985290412U ES290412Y (es) 1984-04-27 1985-11-19 Envase de resina sintetica y capas multiples
CA000615560A CA1277608C (en) 1984-04-27 1989-11-16 Multi-layer synthetic resin can body and method for manufacturing the same
CA000615561A CA1277466C (en) 1984-04-27 1989-11-16 Multi-layer synthetic resin can body and method for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59085755A JPS60229730A (ja) 1984-04-27 1984-04-27 合成樹脂三層缶胴の製造方法

Publications (2)

Publication Number Publication Date
JPS60229730A true JPS60229730A (ja) 1985-11-15
JPH043729B2 JPH043729B2 (ja) 1992-01-24

Family

ID=13867670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59085755A Granted JPS60229730A (ja) 1984-04-27 1984-04-27 合成樹脂三層缶胴の製造方法

Country Status (10)

Country Link
EP (1) EP0161185A3 (ja)
JP (1) JPS60229730A (ja)
KR (1) KR920000004B1 (ja)
AR (1) AR242168A1 (ja)
AU (1) AU584081B2 (ja)
BR (1) BR8502086A (ja)
CA (3) CA1265072A (ja)
ES (2) ES8606083A1 (ja)
MX (1) MX165007B (ja)
ZA (1) ZA853140B (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60240409A (ja) * 1984-05-15 1985-11-29 Mitsubishi Gas Chem Co Inc 多層パリソンの製造方法
US5221507A (en) * 1990-04-24 1993-06-22 Devtech Labs, Inc. Process for coinjection molding of preforms for multi-layer containers
US9849621B2 (en) 2007-04-19 2017-12-26 Anheuser-Busch Inbev S.A. Integrally blow-moulded bag-in-container having a bag anchoring point; process for the production thereof; and tool thereof
US9919841B2 (en) 2007-04-19 2018-03-20 Anheuser-Busch Inbev S.A. Integrally blow-moulded bag-in-container having interface vents opening to the atmosphere at location adjacent to bag's mouth, preform for making it; and processes for producing the preform and bag-in-container
US20080257883A1 (en) 2007-04-19 2008-10-23 Inbev S.A. Integrally blow-moulded bag-in-container having an inner layer and the outer layer made of the same material and preform for making it
PL3140205T3 (pl) * 2014-05-07 2024-12-09 Milacron Llc Pojemnik z tworzywa sztucznego z elastyczną częścią podstawy
WO2021145313A1 (ja) * 2020-01-14 2021-07-22 日精エー・エス・ビー機械株式会社 樹脂製容器の製造方法、製造装置および金型ユニット
CN119114902B (zh) * 2024-11-18 2025-03-21 成都卫达机械制造有限公司 一种薄壁高气密性分子塔管压铸成型方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1436158A (fr) * 1964-04-01 1966-04-22 Continental Can Co Procédé et appareil de fabrication de récipients enduits
US4149839A (en) * 1975-12-30 1979-04-17 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Blow molding apparatus
US4526821A (en) * 1979-07-20 1985-07-02 American Can Company Multi-layer container and method of making same
AU549286B2 (en) * 1981-01-22 1986-01-23 Toyo Boseki K.K. Blow moulded multiply vessel
GB2104825A (en) * 1981-04-23 1983-03-16 Plastona Blow moulding
US4496064A (en) * 1981-11-23 1985-01-29 The Continental Group, Inc. Blow molded container and method of forming the same
DE3484881D1 (de) * 1983-04-13 1991-09-12 American National Can Co Spritzgussverfahren, spritzgussvorrichtung und einspritzdueseneinrichtung zum herstellen von mehrschichtigen gegenstaenden, und mehrschichtige spritzgegossene gegenstaende.
US4609516A (en) * 1984-02-17 1986-09-02 Continental Pet Technologies, Inc. Method of forming laminated preforms

Also Published As

Publication number Publication date
ES542618A0 (es) 1986-04-01
KR920000004B1 (ko) 1992-01-06
AU584081B2 (en) 1989-05-18
EP0161185A2 (en) 1985-11-13
AU4173085A (en) 1985-10-31
CA1277466C (en) 1990-12-11
ES8606083A1 (es) 1986-04-01
BR8502086A (pt) 1985-11-05
AR242168A1 (es) 1993-03-31
CA1265072A (en) 1990-01-30
MX165007B (es) 1992-10-13
EP0161185A3 (en) 1987-11-25
KR850007575A (ko) 1985-12-07
JPH043729B2 (ja) 1992-01-24
ES290412U (es) 1986-03-16
ES290412Y (es) 1986-10-16
ZA853140B (en) 1985-12-24
CA1277608C (en) 1990-12-11

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