JPH043729B2 - - Google Patents

Info

Publication number
JPH043729B2
JPH043729B2 JP59085755A JP8575584A JPH043729B2 JP H043729 B2 JPH043729 B2 JP H043729B2 JP 59085755 A JP59085755 A JP 59085755A JP 8575584 A JP8575584 A JP 8575584A JP H043729 B2 JPH043729 B2 JP H043729B2
Authority
JP
Japan
Prior art keywords
layer
preform
resin
hollow body
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.)
Expired - Lifetime
Application number
JP59085755A
Other languages
English (en)
Other versions
JPS60229730A (ja
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 filed Critical
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 AU41730/85A priority patent/AU584081B2/en
Priority to EP85400831A priority patent/EP0161185A3/en
Priority to ES542618A priority patent/ES8606083A1/es
Priority to ZA853140A priority patent/ZA853140B/xx
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
    • 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
    • B29C2949/3028—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
    • 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
    • B29C2949/3028—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
    • 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
    • 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
    • B29C2949/3032—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
    • 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
    • B29C2949/3032—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
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • 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
    • B29L2031/717—Cans, tins
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • 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)

Description

【発明の詳細な説明】 ［産業上の利用分野］ 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関するものである。
［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
よつ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、即ち一般にネツク部またはリ
ツプ部と称されているところを挾持して成形を行
つており、その挾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つても、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。したがつて、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
缶胴として使用することはできない。
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つて、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オームを成形す
る工程と、そのプリフオ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
有する胴部と、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
は金属蓋の周縁と共に巻き締めて折損することは
なかつた。
［発明が解決しようとする問題点］ しかしながら、上記方法にあつては、プリフオ
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
異なつた材料を、中間層として加えた全体が三層
のプリフオ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。
したがつ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つて
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つ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による中間層とか
らなり、その中間層を缶胴の開口部に当たる部分
の近くまで形成して、中間層の端部から開口端ま
でが単層の三層プリフオームを成形し、そのプリ
フオームを延伸吹込成形により単層部分が外方へ
張出したびん状の中空体に成形し、その中空体を
張出部の下辺にて切断して、胴部及び底部が三層
で開口部に上記下辺による単層の巻込縁を有する
缶胴に成形することにある。
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練材料な
どが上げられる。
［作用］ 上記方法にあつては、プリフオーム成形時に、
中間層の位置をプリフオ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つて形
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］ 第１図 一般に知られている三層成形法を用いて、有底
で三層のプリフオーム１を形成する。この場合、
中間層２は製品となる缶胴の開口部に当たる部分
の近くまで、図面で示すならば、ネツク部３の下
部でとし、中間層２の端部から開口端まで、即ち
ネツク部３とその下側は、外層１ａと内層１ｂを
形成する同一の樹脂により単層に形成する。この
三層のプリフオーム１をネツク型４によりネツク
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
に生じた温度むらを均一にすると共に、プリフオ
ーム温度を延伸吹込成形に適した温度に調整す
る。そして温調後にネツク部３を挾持したまま延
伸吹込部へプリフオーム１を移送する。
第２図 上記プリフオーム１を予め準備された中空体成
形用の吹込金型Ｂに、ネツク型４で挾持したネツ
ク部３を除いて挿入する。この吹込金型Ｂのキヤ
ビテイ上部には張出部成形用の凹所があり、この
凹所より下側に中間層２の上端が位置する。
次に伸長ロツド５をネツク型４の上方からプリ
フオームに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脹させて、胴部
６ａと底部６ｂ及び胴部６ａの上部に単層の張出
部７を一体に有する中空体６に成形する。この成
形により上記プリフオーム１の外層１ａと内層１
ｂ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、
後記する金属蓋の巻き締縁と胴部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６
ａの肉厚は、ほとんど均一であり、また二軸配向
によつて薄肉ながら、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をネツク型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
によつて、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、巻込縁８
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によつ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
めプリフオ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、高価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、
層間に空気が入つ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
図は缶の巻き締部分の縦断面図である。 １…プリフオーム、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。

Claims (1)

    【特許請求の範囲】
  1. 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に
    よる中間層とからなり、その中間層を缶胴の開口
    部に当たる部分の近くまで形成して、中間層の端
    部から開口端までが単層の三層プリフオームを成
    形し、そのプリフオームを延伸吹込成形により単
    層部分が外方へ張出したびん状の中空体に成形
    し、その中空体を張出部の下辺にて切断して、胴
    部及び底部が三層で開口部に上記下辺による単層
    の巻込縁を有す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.
ES542618A ES8606083A1 (es) 1984-04-27 1985-04-26 Un cuerpo de envase de resina sintetica y capas multiples
AU41730/85A AU584081B2 (en) 1984-04-27 1985-04-26 Multi-layer synthetic resin can body and method for manufacturing the same
EP85400831A EP0161185A3 (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
ZA853140A ZA853140B (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 JPS60229730A (ja) 1985-11-15
JPH043729B2 true 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
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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
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
US20150266231A1 (en) 2007-04-19 2015-09-24 Anheuser-Busch Inbev S.A. Integrally blow-moulded bag-in-container having a bag anchoring point; process for the production thereof; and tool thereof
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
PT3140205T (pt) * 2014-05-07 2024-09-19 Milacron Llc Recipiente de plástico com parte de base flexível
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

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* 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
EP0311161A3 (en) * 1983-04-13 1989-10-11 American National Can Company Injection molding method and product made by the method
US4609516A (en) * 1984-02-17 1986-09-02 Continental Pet Technologies, Inc. Method of forming laminated preforms

Also Published As

Publication number Publication date
JPS60229730A (ja) 1985-11-15
ES542618A0 (es) 1986-04-01
ZA853140B (en) 1985-12-24
CA1277608C (en) 1990-12-11
CA1265072A (en) 1990-01-30
AU4173085A (en) 1985-10-31
AR242168A1 (es) 1993-03-31
ES290412U (es) 1986-03-16
AU584081B2 (en) 1989-05-18
BR8502086A (pt) 1985-11-05
EP0161185A3 (en) 1987-11-25
EP0161185A2 (en) 1985-11-13
MX165007B (es) 1992-10-13
ES8606083A1 (es) 1986-04-01
ES290412Y (es) 1986-10-16
KR850007575A (ko) 1985-12-07
KR920000004B1 (ko) 1992-01-06
CA1277466C (en) 1990-12-11

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