WO2014208281A1 - 合成樹脂製窓付き容器、プリフォーム及びプリフォームの射出成形方法 - Google Patents
合成樹脂製窓付き容器、プリフォーム及びプリフォームの射出成形方法 Download PDFInfo
- Publication number
- WO2014208281A1 WO2014208281A1 PCT/JP2014/064566 JP2014064566W WO2014208281A1 WO 2014208281 A1 WO2014208281 A1 WO 2014208281A1 JP 2014064566 W JP2014064566 W JP 2014064566W WO 2014208281 A1 WO2014208281 A1 WO 2014208281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intermediate layer
- laminated
- resin
- preform
- flow path
- Prior art date
Links
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 17
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 17
- 238000001746 injection moulding Methods 0.000 title claims description 35
- 229920005989 resin Polymers 0.000 claims description 149
- 239000011347 resin Substances 0.000 claims description 149
- 230000002093 peripheral effect Effects 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 38
- 238000000071 blow moulding Methods 0.000 claims description 24
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 17
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000003475 lamination Methods 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 6
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000005429 filling process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/54—Inspection openings or windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
- B29C45/1607—Multi-way nozzles specially adapted therefor having at least three different ways
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/164—The moulding materials being injected simultaneously
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
- B29C45/1646—Injecting parison-like articles
-
- 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
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- 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
- B32B1/00—Layered products having a non-planar shape
-
- 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—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, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
- B29C2045/1614—Multi-way nozzles specially adapted therefor side-by-side flow of materials in the same channel
-
- 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
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- 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
- B29C2949/3006—Preforms or parisons made of several components having tangentially different components within one layer, e.g. longitudinal stripes
-
- 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
- B29C2949/3008—Preforms or parisons made of several components at neck portion
- B29C2949/3009—Preforms or parisons made of several components at neck 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
- B29C2949/3012—Preforms or parisons made of several components at flange portion
- B29C2949/3014—Preforms or parisons made of several components at flange 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
- B29C2949/3016—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
- B29C2949/3022—Preforms or parisons made of several components at bottom 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
- B29C2949/3032—Preforms or parisons made of several components having 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
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- 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
-
- 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
- B29L2031/7158—Bottles
-
- 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
- B32B2439/60—Bottles
-
- 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
- B65D2203/00—Decoration means, markings, information elements, contents indicators
- B65D2203/04—Level indicators
Definitions
- the present invention relates to a container with a synthetic resin window by biaxial stretch blow molding having a transparent or semi-transparent window part from which the remaining amount of the contents can be confirmed, and a test tubular preform as a precursor of the container And an injection molding method of the preform.
- blow molded containers made of synthetic resin have been widely used for beverages, foods, detergents, cosmetics, medicines, etc.
- contents are made invisible for the purpose of improvement.
- the container itself is made opaque with a colored resin
- the outer surface of the container is coated opaquely
- the outer surface of the container is opaque
- means such as overcoating with a shrink film with opaque printing on the surface is used.
- a transparent or translucent container is used, and a mask is partially masked and the mask is removed after coating to form a window part.
- a means for forming a window portion that remains transparent without printing so that the remaining amount of contents can be confirmed from the outside.
- Patent Document 1 describes an invention relating to a blow-molded container by direct blow molding in which a window portion made of a transparent resin is formed in a vertical belt shape so as to completely divide the peripheral wall from a colored resin.
- a window portion made of a transparent resin is formed in a vertical belt shape so as to completely divide the peripheral wall from a colored resin.
- FIG. 12 when extruding a cylindrical parison 131 as a precursor, an uncolored portion of a cylindrical flow path in which a colored resin Rcol flows of a die used for extrusion molding is used.
- a transparent resin Rtr is poured in the extrusion direction, and a parison 131 is formed by blow molding so that the peripheral wall made of the colored resin Rcol is completely divided in the circumferential direction by the transparent resin Rtr extruded in the vertical band shape.
- a transparent window can be formed relatively easily.
- a transparent window portion can be formed in a vertical band shape relatively easily as described above.
- a container such as a biaxial stretch blow molded bottle made of polyethylene terephthalate (hereinafter abbreviated as PET) resin, which is a biaxial stretch blow molded injection molded test tubular preform
- PET polyethylene terephthalate
- a vertical window-like transparent window part is formed in this way, the colored resin is mixed into a part of the transparent window part and the appearance of the window part is impaired, and further, a part of the window part becomes opaque. There is a problem such as.
- one of the cylindrical flow paths through which the colored resin Rcol flows in the same manner as the parison molding by the direct blow molding described above, in the nozzle portion provided in the injection molding apparatus.
- the laminated molten resin body formed in FIG. 13 is formed into a cylindrical shape having a laminated structure as shown in FIG. 13B at the tip of the nozzle portion, and the test tube is inserted through the gate 5 as shown in FIG. 13C.
- a part of the colored resin Rcol may enter the inner peripheral surface side of the transparent resin Rtr, and the colored resin Rcol is formed on the inner peripheral surface side of the window as described above.
- a part of the window part is mixed, the appearance of the window part is impaired, and a part of the window part becomes opaque.
- the above-mentioned container with a window by direct blow molding and the container with a window by biaxial stretch blow molding form a vertical strip portion made of a transparent resin penetrating the peripheral wall on a peripheral wall formed of a colored resin.
- a vertical strip-shaped window is formed in the container by a transparent vertical strip-like portion, and most of the inner surface of the peripheral wall is formed with colored resin, and the contents to be stored are in direct contact with this colored resin. become. For this reason, depending on the type of the content and the type of pigment or filler dispersed for coloring or light-shielding properties, there may be a concern about problems such as a change in the quality of the content.
- the object of the present invention is to solve the problems such as the appearance of the window portion being impaired in the synthetic resin windowed container by biaxial stretch blow molding, and the problems such as the quality change of the contents.
- An object of the present invention is to provide a biaxial stretch blow-molded container in which a transparent window portion is clearly formed.
- the present invention relates to a container with a synthetic resin window by biaxial stretch blow molding, a test tubular preform as a precursor of the container, and an injection molding method of the preform.
- a preform, a container with a window, and an injection molding method will be described in this order.
- the preform having these configurations can be molded by the injection molding method of the present invention described later.
- the main structure related to the preform of the present invention is a test tubular preform for biaxial stretch blow molding by injection molding, in which a peripheral wall is formed by a transparent base layer, and in the base layer at a predetermined height region of the peripheral wall.
- a light-shielding or opaque intermediate layer is laminated, and this intermediate layer is a peripheral wall excluding a non-laminated portion where no intermediate layer is laminated on the peripheral wall of the preform in a longitudinal strip shape along the central axis direction. It is said that it is set as the structure laminated
- the above-described container with a window by biaxial stretch blow molding described with reference to FIG. 13 forms a vertical strip made of a transparent resin penetrating the peripheral wall on the peripheral wall formed of a colored resin.
- a vertical belt-like window portion was formed in the container by the vertical belt-like portion.
- the peripheral wall of the test tubular preform is formed by laminating an opaque intermediate layer in a transparent base layer, that is, from the outside to the inside, the base layer / intermediate layer / base layer,
- a non-laminated part without a laminated intermediate layer extending in a vertical belt shape is provided, and a vertical belt-like window is formed in a biaxially stretched blow molded container by this transparent non-laminated part.
- a transparent base layer by this invention, it can also be made colored transparent besides a colorless and transparent, and also making it semi-transparent is included.
- a cylindrical laminated molten resin body formed at the tip of the nozzle portion disposed in the injection molding apparatus is In a state where the laminated structure of the base layer / intermediate layer / base layer is held, it is injected and flows through a gate into a cavity formed in a test tube. Therefore, the problem that the colored resin is mixed in a part of the transparent window part in the injection molding method as shown in FIG. It is possible to form a simple window portion.
- Another structure according to the preform of the present invention is that the intermediate layer is laminated over substantially the entire height range in the main structure. From the viewpoint of formability and the like, there is a case where the intermediate layer is not laminated in the vicinity of the upper end surface of the mouth tube portion or the bottom wall portion of the bottom portion. In consideration of this point, the above configuration is set to “substantially full height range”.
- Still another configuration relating to the preform of the present invention is a configuration in which an intermediate layer is laminated in the entire region near the bottom including at least the bottom wall in the main configuration.
- the intermediate layer can be laminated in the entire height range as described above.
- the intermediate layer in the preform according to the purpose of use of the container such as the height range excluding the mouth tube part, the height range excluding the bottom part, etc.
- the stacking range can be selected, and according to the molding method described later, an intermediate layer can be stacked in the entire region near the bottom including the bottom wall as in the above-described configuration.
- the lamination range of the intermediate layer in the preform depends on the purpose of use of the container, such as light shielding properties. Can be selected.
- the main structure of the windowed container of the present invention is a box-shaped synthetic resin windowed container obtained by biaxially stretching blow-molding a test tubular preform by injection molding as a precursor, and comprising a transparent base layer.
- the intermediate layer is configured to be laminated in a region over the entire circumference of the peripheral wall, excluding the non-laminated portion where the intermediate layer is not laminated, which is extended in a vertical belt shape along the central axis direction of the container on the peripheral wall of the container. It is said that the non-laminated portion is a window portion.
- the container with a window having the above-described structure is obtained by clearly forming a vertical belt-like transparent window portion by biaxial stretch blow molding as described above for the preform of the present invention.
- the intermediate layer can be laminated on almost the entire area of the peripheral wall of the container except for the window portion.
- PET resin is used as a main material resin
- ethylene vinyl having a high gas barrier property is used as the intermediate layer resin.
- EVOH alcohol copolymer
- MX nylon resin etc.
- the above EVOH resin, MX nylon resin, etc. are resins whose performance is deteriorated by the contents mainly composed of water.
- a PET resin or a polyolefin resin as the base resin, the content resistance is improved.
- This kind of resin having poor physical suitability can be used as an intermediate layer without any problem, and the intermediate layer colored with these resins can exhibit functions such as light shielding properties and gas barrier properties.
- the intermediate layer since the intermediate layer has a laminated structure in which the intermediate layer is laminated in a sandwich shape, the content does not directly contact the intermediate layer in which the pigment or filler is dispersed, and the quality change of the content, etc. The problem can be solved.
- the other structure which concerns on the container with a window of this invention says that an intermediate
- Still another configuration relating to the windowed container of the present invention is a configuration in which an intermediate layer is laminated in the entire region near the bottom including at least the bottom wall in the main configuration described above.
- Still another configuration relating to the windowed container of the present invention is that, in the above main configuration, the base layer is made of uncolored PET resin, and the intermediate layer is colored and made of opaque PET resin.
- the main configuration of the preform injection molding method of the present invention is the above-described injection molding method of a test tubular preform for biaxial stretch blow molding in which an intermediate layer is laminated in a base layer. And Three cylindrical layer forming flows of an inner flow path and an outer flow path forming a base layer made of a main material resin, and an intermediate flow path positioned between the inner flow path and the outer flow path and forming an intermediate layer made of an intermediate layer resin
- the road is arranged coaxially, A column-shaped joint channel where these three channels merge is arranged downstream of these three cylindrical layer forming channels, A blocking vertical rib piece that crosses the middle flow path in the circumferential direction is disposed at the downstream end of the middle flow path, and a nozzle portion that is configured to divide the middle flow path in the circumferential direction by the blocking vertical rib piece is disposed.
- the bottom of the preform of the mold cavity which is connected to the tip of the nozzle, is a cylindrical laminated molten resin body in which the intermediate layer resin is laminated in the main material resin, joined in a cylindrical shape to the joint flow path Injection and filling into the cavity through a gate arranged at a position corresponding to the center of the bottom wall,
- Another configuration of the preform injection molding method according to the present invention is the above main configuration in which a cylindrical shut-off pin is slidably inserted and disposed inside the inner flow path of the injection molding device to be used.
- a cylindrical shut-off pin is slidably inserted and disposed inside the inner flow path of the injection molding device to be used.
- the preform has a peripheral structure in which a transparent intermediate layer is laminated with an opaque intermediate layer, that is, a laminated structure of base layer / intermediate layer / base layer from the outside to the inside.
- the non-laminated part without the lamination of the intermediate layer extending in the form of a vertical band is provided, and the transparent non-laminated part is intended to form a vertical band-like window in a biaxially stretched blow molded container, and is transparent
- a transparent and clear window that can solve problems such as the appearance of the window being damaged due to the colored resin mixed in a part of the window, and the part of the window becoming opaque.
- a biaxial stretch blow-molded container in which a part is formed can be provided. Further, the present invention has a laminated structure in which the intermediate layer is laminated in a sandwich shape in the base layer, and the content does not directly contact the intermediate layer in which the pigment or filler is dispersed, and the quality of the content Problems such as changes can be solved.
- FIG. 3 It is a perspective view which shows one Example of the container with a window of this invention. It is a plane sectional view shown along the AA line of the container of FIG. It is a perspective view which shows one Example of the preform of this invention.
- (A) of the preform of FIG. 3 is a side view partially cut longitudinally,
- (b) is a plan sectional view taken along line BB in (a), and
- (c) is a bottom view.
- A) which shows the other Example of the preform of this invention is a side view shown partially cut away,
- (b) is a plane sectional view shown along the CC line in (a),
- (c) is It is a bottom view.
- FIG. 10 is a schematic explanatory diagram illustrating a filling process of molten resin into a mold cavity by an injection pattern in FIG. 9.
- FIG. 10 is a schematic explanatory diagram illustrating a filling process of molten resin into a mold cavity by an injection pattern in FIG. 9.
- FIG. 10 is a schematic explanatory diagram illustrating a filling process of molten resin into a mold cavity with another injection pattern in FIG. 9. It is a schematic explanatory drawing of the parison extrusion process in direct blow molding. It is a schematic explanatory drawing which shows the example of the prior art of the filling process of the laminated molten resin body to a metal mold cavity.
- FIG. 1 is an overall perspective view
- FIG. 2 is a plan sectional view taken along line AA in FIG.
- This container 201 is a PET resin casing obtained by biaxially stretching blow-molding a test tubular preform 101, which will be described later, and includes a mouth tube portion 202, a tapered cylindrical shoulder portion 204, a cylindrical body portion 205, and a bottom portion 206.
- a neck ring 203 is provided around the mouth tube portion 202.
- the body portion 205 has a diameter of 55 mm and an overall height of 190 mm.
- the peripheral wall of the container 201 has a substantially total height excluding the upper end portion of the mouthpiece portion 202 and the bottom wall 206w of the bottom portion 206 in the base layer 211 made of the main material resin Ra which is an uncolored PET resin forming the entire peripheral wall.
- the intermediate layer 212 made of the intermediate layer resin Rb which is a white-colored PET resin, is laminated over the entire range, as shown in FIG. 2, from the outer surface to the inner surface, the base layer 211a / intermediate layer 212 / base layer 211b. , Has a laminated structure consisting of three layers. In FIG. 2, the base layer 211 is divided into a base layer 211a located on the outer side and a base layer 211b located on the inner side.
- a vertical belt-like non-laminate portion 213 in which the intermediate layer 212 is not laminated in the vertical direction on the side surface side of the peripheral wall, that is, the peripheral wall is formed only of the base layer 211 is formed.
- a window portion 213w through which the inside of the container 101 can be seen is provided so that the remaining amount of the content liquid can be confirmed.
- the intermediate layer 212 functions as a light shielding layer.
- both resin Ra and Rb are in the boundary part of the intermediate
- the appearance of the window portion 213w is clear and has a good appearance without being mixed with each other.
- portions of the peripheral wall of the container 201 and the preform 101 where a white-colored appearance is seen by the intermediate layer are painted with light black as necessary.
- This preform 101 is a precursor of the container 201 shown in FIGS. 1 and 2, and FIG. 3 is an overall perspective view.
- (A) is a side view partially cut longitudinally
- (b) is a plan sectional view taken along line BB in (a)
- (c) is a bottom view.
- This preform 101 has a shape of a test tube made of injection-molded PET resin, and has a mouth tube portion 102, a cylindrical body portion 105, and a bottom portion 106, and a neck ring 103 is provided around the mouth tube portion 102. It is installed.
- the peripheral wall of the preform 101 is substantially the same as the base layer 111 made of the main material resin Ra, which is an uncolored PET resin that forms the entire peripheral wall, except for the upper end portion of the mouthpiece portion 102 and the bottom wall 206w of the bottom portion 106.
- the peripheral wall there is formed a vertical belt-like non-stacked portion 113 in which the intermediate layer 112 is not stacked in the vertical direction, that is, the peripheral wall is formed only of the base layer 111. Further, as shown in FIG. 4C, the bottom wall 106w of the bottom portion 106 is not laminated with the intermediate layer 112, and the bottom wall 106w is transparent.
- FIGS. 5A and 5B show another embodiment of the preform of the present invention.
- FIG. 5A is a side view showing a part of the preform
- FIG. 5B is a plan view taken along the line CC in FIG. Sectional drawing and (c) are bottom views.
- the preform 101 is generally similar to the preform 101 of FIG. 4, but the intermediate layer 112 is laminated on the entire area of the bottom wall 106 w of the bottom 106, and the non-laminated area 113 is formed on the body 105. It is assumed that it extends to the lower end. Then, in the case-like container 201 obtained by biaxially stretching blow-molding the preform 101, the intermediate layer 212 can be laminated also on the bottom wall 206w to be white and opaque.
- FIGS. 6, 7 and 8 schematically show an example of an injection molding apparatus used in the injection molding method of the present invention.
- FIG. 6 is a longitudinal sectional view in the vicinity of the nozzle portion 11 and a mold on the downstream side.
- FIG. 7 is an explanatory view for explaining the position of the tip 20p of the shut-off pin 20 in the apparatus of FIG. 6, and
- FIG. 8 is a first view for forming the middle flow path 15b of the nozzle portion 11.
- A) of one mandrel is a side view
- (b) is a bottom view
- (c) is a perspective view as seen obliquely from below.
- the nozzle portion 11 includes a cylindrical first mandrel 21, a second mandrel 22, and a third mandrel 23 that are arranged in the same central axis in order from the inside, and a columnar shut inside the first mandrel 21.
- An off pin 20 is slidably inserted and disposed.
- the tip of each mandrel has a tapered cylindrical shape with a diameter reduced toward the downstream side.
- a cylindrical outer flow path 15 a in which the main material resin Ra flows is formed between the third mandrel 23 and the second mandrel 22, and the second resin Rb flows between the second mandrel 22 and the first mandrel 21.
- a cylindrical inner flow path 15b is formed, and a cylindrical inner flow path 15c through which the main material resin Ra flows is formed between the first mandrel 21 and the shut-off pin 20 in the same manner as the outer flow path 15a.
- FIG. 8 shows the shape of the first mandrel 21 that forms the inner peripheral wall of the middle flow path 15c.
- a cylindrical shape is formed from the inlet 13b of the melted intermediate layer resin Rb.
- Manifolds 14b which are groove-like flow paths for distributing the molten resin to the flow paths, are arranged symmetrically, and the blocking vertical rib pieces 16R are inflow ports at the tapered portions that are the downstream ends. It is arrange
- the main material resin Ra is supplied from a first supply part Sa such as a screw type extruder or an accumulator having a plunger attached to the tip of the extruder, It is introduced into the outer flow path 15a and the inner flow path 15c via the introduction path 12a and the manifolds 14a1 and 14a2. Further, the intermediate layer resin Rb is supplied from the second supply portion Sb, and is introduced into the intermediate flow path 15b through the introduction path 12b and the manifold 14b.
- a first supply part Sa such as a screw type extruder or an accumulator having a plunger attached to the tip of the extruder
- main material resin Ra is from the reduced diameter flow path 15cs arrange
- the second resin Rb is supplied from the reduced diameter flow path 15bs disposed at the tip of the middle flow path 15b to the cylindrical combined flow path 19.
- the main resin Ra and the second resin Rb merge in the joint channel 19 to form a cylindrical laminated molten resin body.
- this laminated molten resin body is disposed at a position corresponding to the center of the bottom wall 106w of the bottom 106 of the preform 101 in the cavity 4 formed by the core mold and the cavity mold of the mold 1. Inject and fill into the cavity 4 via
- the intermediate layer resin Rb formed in a cylindrical shape in the middle flow path 15b is divided in the circumferential direction by the blocking vertical rib pieces 16R disposed at the downstream end portion, and this dividing flow is divided by the combined flow path 19.
- a non-laminated portion 113 is formed.
- the shut-off pin 20 is configured to slide on the inner peripheral surface of the reduced diameter tip portion of the first mandrel 21 that forms the inner flow path 15 c together with the shut-off pin 20. Yes.
- the shut-off pin 20 moves the tip 20p at a predetermined position in the vicinity of the open end 17c to the combined channel 19 of the inner channel 15c.
- the opening degree of the opening end portion 17c is adjusted between the fully opened state and the blocked state, and the supply amount of the main material resin Ra from the inner flow path 15c to the combined flow path 19 is adjusted. It has a function.
- FIG. 7 is a view for explaining the position of the tip 20p of the shut-off pin 20 in the apparatus of FIG.
- the position P0 corresponds to the tip of the nozzle 11
- the position P3 corresponds to the upstream end of the reduced diameter flow path 15cs
- the position P2 corresponds to the vicinity of the lower end of the reduced diameter flow path 15cs
- the position P1 corresponds to the lower end of the inner flow path 15c.
- the opening degree of the open end 17c is adjusted between the fully open state and the shut-off state, and is joined from the inner flow path 15c.
- the supply amount of the main material resin Ra to the path 19 can be adjusted.
- FIG. 9 shows the injection pattern when the preform 101 shown in FIG. 3, 4 or 5 is injection-molded by the injection molding apparatus shown in FIGS. 6 to 8, the horizontal axis is the time axis, and the vertical axis is the molten resin.
- the injection pattern of the main material resin Ra is indicated by a solid line
- the injection pattern of the intermediate layer resin Rb is indicated by a broken line.
- the main material resin Ra is basically supplied from the outer flow path 15a and the inner flow path 15c to the combined flow path 19 at a predetermined supply speed Va for a predetermined time, and this main material resin Ra is supplied for a predetermined time range.
- FIG. 9 shows a control pattern of the position of the tip 20p of the two types of shut-off pins 20 together with the injection pattern of the molten resin.
- the preform 101 in FIGS. 3 and 4 is formed by combining the injection pattern of the main material resin Ra and the intermediate layer resin Rb and the control pattern Sp1 indicated by a two-dot chain line, and the preform 101 in FIG. 5 is a one-dot chain line.
- the control pattern Sp1 of the shut-off pin 20 in FIG. 9 is a pattern in which the tip 20p is fixed at the position P3 shown in FIG. 7 and the open end 17c of the inner flow path 15c is fully opened over the entire time.
- the injection molding process along the passage of time with this pattern is as follows. (1) The position of the tip 20p of the shutoff pin 20 is P3, the open end 17c of the inner flow path 15c is completely opened, and the supply of the main material resin Ra is injected from the first supply part Sa at time ta1. It starts at the speed Va and is supplied to the combined channel 19 through the outer channel 15a and the inner channel 15c.
- the intermediate layer resin Rb is started at the supply speed Vb from the second supply section Sb at a time tb1 substantially at the same time as the time ta1, and is supplied to the combined flow path 19 through the intermediate flow path 15b, and the outer flow path 15a and the inner flow path 15c From the main material resin Ra.
- the supply of the intermediate layer resin Rb from the second supply unit Sb is stopped at time tb2.
- the mold pressure is decreased to a predetermined pressure at time ta2 (as a result, the supply speed Va from the first supply unit Sa is decreased), and the pressure holding process is performed until time ta3.
- FIG. 10 is a schematic explanatory diagram for explaining the filling process of the main material resin Ra and the intermediate layer resin Rb into the cavity 4 of the mold 1 in the above-described process
- FIG. FIG. 10B shows a state between the times tb1 and tb2
- FIG. 10B shows a state at the time ta3.
- 10A and 10B are cross-sectional views of the cylindrical laminated molten resin body in the gate 5 along the K1-K1 and K2-K2 lines, respectively.
- the main material resin supplied from the outer flow path 15a is referred to as Ra1
- the main material resin supplied from the inner flow path 15c is referred to as Ra2
- the main material resin Ra is shown separately.
- the formation position of the vertical strip-shaped non-stacked portion 113 is indicated by a one-dot chain line, and the region where the intermediate layer 112 is stacked is shown in light black.
- the intermediate layer resin Rb is divided by the blocking vertical rib pieces 16R disposed in the intermediate flow path 15b, and the slit S And is laminated in a C-shape in the main material resins Ra1 and Ra2.
- the laminated form as shown in FIG. 10B is formed, and the preform 101 is formed with a vertical strip-shaped non-laminated portion 113 by slits S as shown in FIG.
- the intermediate layer 112 is not laminated on 106w.
- FIG. 11 is a schematic explanatory diagram for explaining a filling process of the main material resin Ra and the intermediate layer resin Rb into the cavity 4 of the mold 1 in the injection molding process employing the control pattern Sp2.
- FIG. 11A shows a state between times tb1 and ts1 in FIG. 9
- FIG. 11B shows a state between times ts2 and ta2
- FIG. 11C shows a state at time ta3.
- FIG. 11A and 11C are along the lines J1-J1 and J3-J3, respectively, and FIG. 11B is a circle at the gate 5 along the lines J2a-J2a and J2b-J2b. Sectional drawing of the column-shaped laminated molten resin body is shown.
- the state shown in FIG. 11A is the same as the state shown in FIG. 10A, and as shown in the cross-sectional view shown on the right side, in the gate 5, the intermediate layer resin Rb is disposed in the blocking vertical direction disposed in the middle flow path 15b.
- the flow path is divided by the rib pieces 16R, slits S are formed, and the main resin layers Ra1 and Ra2 are laminated in a C shape. Further, since the position of the tip 20p of the shut-off pin 20 is set to P1 between the times ts1 and ts2, the supply of the main material resin Ra2 from the inner flow path 15c is shut off. Therefore, in the state of FIG.
- the position of the tip 20p is returned to P3, the supply of the main material resin Ra2 from the inner flow path 15c is resumed, and from the gate 5 toward the cavity 4 in the pressure holding process from time ta2 to ta3.
- the intermediate layer 112 made of the intermediate layer resin Rb becomes a laminated form as shown in FIG. Therefore, in the preform 101, as shown in FIG. 5, the vertical strip-shaped non-stacked portion 113 is formed by the slit S, and the intermediate layer 112 can be stacked on the bottom wall 106w of the bottom portion 16 as well.
- the container is a PET resin round casing, but other synthetic resins such as polypropylene (PP) resin capable of biaxial stretch blow molding can be used, and the shape of the container is also Other shapes such as a rectangular housing can be used.
- PP polypropylene
- the molecular weights of both resins can be changed in consideration of the flow behavior of both resins. Also, it is not always necessary to use the same resin for the main material resin and the intermediate layer resin.
- a PET resin is used for the main material resin
- the EVOH resin or MX nylon resin having a high gas barrier property is used for the intermediate layer resin.
- the window 213w is disposed in a range of substantially the entire height as in the case of the container 201 in FIG. 1, and in consideration of light shielding properties, for example, a time period for supplying the intermediate layer resin Rb with the injection pattern in FIG. Can be selected as appropriate according to the purpose of use of the container, such as to make the body portion 205 extremely limited.
- the base layer 211 can be colored transparent or translucent.
- the synthetic resin window-equipped container of the present invention is formed by clearly forming a vertical belt-shaped transparent window portion by biaxial stretch blow molding, and is expected to be widely used in light-shielding containers and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
遮光性を付与したり、内容物を外から見えない様にする手段としては、容器自体を着色した樹脂により不透明にする、容器の外表面を不透明に塗装する、容器の外表面を不透明な、あるいは表面に不透明な印刷をしたシュリンクフィルムでオーバーコートする等の手段が用いられている。
この容器は、図12に示すように前駆体となる円筒状のパリソン131を押出成形する際、押出し成形に使用するダイスの、着色樹脂Rcolが流動する円筒状流路の一部に未着色の透明樹脂Rtrを押出し方向に流し込み、縦帯状に押出される透明樹脂Rtrで着色樹脂Rcolからなる周壁を周方向に完全に分断するようしたパリソン131をブロー成形より成形したものであり、縦帯状に透明な窓部を比較的に容易に形成することができる。
一方、射出成形した試験管状のプリフォームを2軸延伸ブロー成形したポリエチレンテレフタレート(以下、PETと略記する。)樹脂製等の、2軸延伸ブロー成形ボトル等の容器では、ダイレクトブロー成形による容器のように縦帯状の透明な窓部を形成しようとすると、透明な窓部の一部に着色した樹脂が混入して窓部の外観が損なわれる、さらには窓部の一部が不透明になってしまう等の問題がある。
このため、図13(c)に示したように、着色樹脂Rcolの一部が透明樹脂Rtrの内周面側に入り込む場合があり、上記したような窓部の内周面側に着色樹脂Rcolの一部が混入し、窓部の外観が損なわれる、さらに窓部の一部が不透明になってしまう等の問題が生じる。
本発明のプリフォームに係る主たる構成は、射出成形による2軸延伸ブロー成形用の試験管状のプリフォームにおいて、透明な基体層により周壁を形成し、周壁の所定の高さ領域において基体層中に遮光性を有する、若しくは不透明な中間層を積層し、この中間層は、プリフォームの周壁に中心軸方向に沿って縦帯状に延設される中間層の積層のない非積層部を除く、周壁の全周に亘る領域に積層する構成とする、と云うものである。
なお、本発明で透明な基体層については、無色透明の他にも、着色透明とすることもでき、さらに半透明とすることも含まれる。
なお、成形性等の観点から、口筒部の上端面近傍や底部の底面壁部分に中間層を積層しない場合もあり、この点を考慮して上記構成では「略全高さ範囲」としている。
また、中間層が積層された高さ範囲の中で、非積層部をどの程度の範囲に配設するかについても、遮光性等、容器の使用目的に応じてプリフォームにおける中間層の積層範囲を選択することができる。
本発明の窓付き容器に係る主たる構成は、前駆体としての射出成形による試験管状のプリフォームを2軸延伸ブロー成形した壜体状の合成樹脂製窓付き容器であって、透明な基体層により周壁を形成し、
該周壁の所定の高さ領域に亘って前記基体層中に遮光性を有する、若しくは不透明な中間層を積層し、
中間層は、容器の周壁にこの容器の中心軸方向に沿って縦帯状に延設される中間層の積層のない非積層部を除く、周壁の全周に亘る領域に積層する構成とし、この非積層部を窓部とする、と云うものである。
また、中間層は容器の周壁の、窓部を除いた略全領域に積層することが可能であり、例えば、主材樹脂にPET樹脂を使用し、中間層樹脂にはガスバリア性の高いエチレンビニルアルコール共重合体(EVOH)樹脂やMXナイロン樹脂等を着色して使用することにより、中間層で窓部を除いた周壁のほぼ全領域を積層することができ、遮光性と、窓部の機能と、高度なガスバリア機能を併せて持った容器を提供することができる。
また、中間層が基体層中にサンドイッチ状に積層する積層構造を有するものであるので、内容物が顔料やフィラーを分散した中間層に直接、接触することはなく、内容物の品質変化等の問題も解消することができる。
また、周壁を全体的に統一的な着色状態として良好な外観を現出させることができる。
主材樹脂による基体層を形成する内流路及び外流路と、内流路と外流路の間に位置し、中間層樹脂による中間層を形成する中流路の3ケの円筒状の層形成流路を同軸心状に配設し、
これら3ケの円筒状の層形成流路の下流側に、これら3ケの流路が合流する円柱状の合流路を配設し、
中流路の下流側の端部に周方向に該中流路を横断する遮断縦リブ片を配設し、この遮断縦リブ片により中流路を周方向に分断する構成としたノズル部を配設した射出成形装置を使用し、
主材樹脂を外流路と内流路から合流路に所定の供給速度で所定時間供給し、
主材樹脂が供給される所定時間範囲内の一定時間、同時に中間層樹脂を中流路から合流路に所定の供給速度で供給し、
合流路に円柱状に合流した、主材樹脂中に中間層樹脂が積層した円柱状の積層溶融樹脂体を、ノズルの先端に連結して配設される金型のキャビティの、プリフォームの底部底壁の中央に相当する位置に配設されるゲートを介してキャビティ内に射出、充填し、
遮断縦リブ片による中流路中での中間層樹脂の周方向への分断により、プリフォームの周壁に中心軸方向に沿って縦帯状に延設される中間層の積層のない非積層部を形成する、と云うものである。
本発明は、プリフォームは周壁を、透明な基体層の中に不透明な中間層を積層した、すなわち、外側から内側に向けて、基体層/中間層/基体層、と云う積層構造とすると共に、縦帯状に延設される中間層の積層のない非積層部を設け、この透明な非積層部により2軸延伸ブロー成形した容器に縦帯状の窓部を形成しようとするものであり、透明な窓部の一部に着色した樹脂が混入して窓部の外観が損なわれる、さらには窓部の一部が不透明になってしまう等の問題を解消することができ、透明でクリアな窓部を形成した2軸延伸ブロー成形容器を提供することができる。
また、本発明は、中間層が基体層中にサンドイッチ状に積層する積層構造を有するものであり、内容物が顔料やフィラーを分散した中間層に直接、接触することはなく、内容物の品質変化等の問題も解消することができる。
図1、2は本発明の窓付き容器の一実施例を示すものであり、図1は全体斜視図、図2は図1中のA−A線に沿って示す平断面図である。
この容器201は後述する試験管状のプリフォーム101を2軸延伸ブロー成形したPET樹脂製の壜体で、口筒部202、テーパー筒状の肩部204、円筒状の胴部205、そして底部206を有し、口筒部202にはネックリング203が周設されており、胴部205の径は55mm、全高さは190mmである。
なお、図2では基体層211を外面側に位置する基体層211aと内面側に位置する基体層211bに分けて示している。
また、中間層212は遮光層としての機能を発揮する。
なお、図1、さらには後述する図面では、容器201やプリフォーム101の周壁において、中間層により白く着色した外観が見られる部分を必要に応じて薄い黒色で塗り潰して示している。
このプリフォーム101は射出成形したPET樹脂製の試験管状の形状をしたもので、口筒部102、円筒状の胴部105、底部106を有し、口筒部102にはネックリング103が周設されている。
また、図4(c)に示されるように底部106の底面壁106wには中間層112の積層がなく、底面壁106wは透明である。
このプリフォーム101は全体的に図4のプリフォーム101と類似しているが、底部106の底面壁106wの全領域に中間層112を積層しており、また非積層領域113は胴部105に下端部まで延設したものとしている。
そして、このプリフォーム101を2軸延伸ブロー成形した壜体状の容器201では、底面壁206wについても中間層212が積層して、白色、不透明とすることができる。
また、各マンドレルの先端部は下流側に向かって縮径したテーパー筒状となっている。
そして、第3マンドレル23と第2マンドレル22の間に主材樹脂Raが流動する円筒状の外流路15aが形成され、第2マンドレル22と第1マンドレル21の間に第2の樹脂Rbが流動する円筒状の中流路15bが形成され、さらに第1マンドレル21とシャットオフピン20の間に外流路15aと同様に主材樹脂Raが流動する円筒状の内流路15cが形成されている。
図8は中流路15cの内周壁を形成する第1マンドレル21の形状を示すものであるが、図8(a)の側面図でみると溶融した中間層樹脂Rbの流入口13bから円筒状の流路に溶融樹脂を分配する、溝状の流路であるマニホールド14bを左右対称状に配設しており、下流側の端部であるテーパー状の部分に、遮断縦リブ片16Rが流入口13bの反対側となる周方向に配設されている。
また、中間層樹脂Rbは第2供給部Sbから供給され、導入路12bを経てマニホールド14bを介して中流路15bに導入される。
また第2の樹脂Rbは中流路15bの先端部に配設される縮径流路15bsから円柱状の合流路19に供給される。この合流路19で主材樹脂Raと第2の樹脂Rbが合流して、円柱状の積層溶融樹脂体を形成する。
そして、この積層溶融樹脂体を、金型1のコア金型とキャビティ金型で形成されるキャビティ4の、プリフォーム101の底部106底面壁106wの中央に相当する位置に配設されるゲート5を介してキャビティ4内に射出、充填する。
このシャットオフピン20は、ノズル部11の先端部を遮断あるいは開放すると云う通常の機能の他に、その先端20pの位置を内流路15cの合流路19への開口端部17c近傍の所定の位置に制御、位置させることにより、この開口端部17cの開度を全開状態と遮断状態の間で調整し、内流路15cから合流路19への主材樹脂Raの供給量を調整すると云う機能を有する。
ここで、位置P0はノズル11の先端、位置P3は縮径流路15csの上流端、位置P2は縮径流路15csの下端近傍、そして位置P1は内流路15cの下端に相当する。
そして、シャットオフピン20の先端20pが位置P3にあるときは開口端部17cの開度を全開した状態となり、前記先端20pが位置P2にあるときは開度を絞った状態となり、前記先端20pが位置P1にあるときは遮断した状態となる。
したがって、シャットオフピン20の先端20pの位置を位置P1と位置P3の間で調整することで、開口端部17cの開度を全開状態と遮断状態の間で調整し、内流路15cから合流路19への主材樹脂Raの供給量を調整することができる。
図9は、図6~8に示した射出成形装置で図3、4あるいは図5に示されるプリフォーム101を射出成形する際の射出パターンを、横軸を時間軸、縦軸を溶融樹脂の供給速度として概略的に示した説明図で、実線で主材樹脂Raの、破線で中間層樹脂Rbの射出パターンを示している。
この射出パターンは基本的には、主材樹脂Raを外流路15aと内流路15cから合流路19に所定の供給速度Vaで所定時間供給し、この主材樹脂Raが供給される所定時間範囲内の一定時間、同時に中間層樹脂Rbを中流路15bから合流路19に所定の供給速度で供給する、所謂、同時射出成形に相当するものである。
図3、4のプリフォーム101は上記した主材樹脂Raと中間層樹脂Rbの射出パターンと二点鎖線で示す制御パターンSp1を組み合せて成形したものであり、図5のプリフォーム101は一点鎖線で示す制御パターンSp2を組み合せて成形したものである。
(1)シャットオフピン20の先端20pの位置をP3とし、内流路15cの開口端部17cを完全に開放した状態とし、時間ta1に第1供給部Saから主材樹脂Raの供給を射出速度Vaで開始し、外流路15aと内流路15cを経て合流路19に供給する。
(2)時間ta1とほぼ同時の時間tb1に中間層樹脂Rbを第2供給部Sbから供給速度Vbで開始し、中流路15bを経て合流路19に供給し、外流路15aと内流路15cからの主材樹脂Raの間に流動させる。
(3)時間tb2に第2供給部Sbからの中間層樹脂Rbの供給を停止する。
(4)時間ta2に金型圧力を所定圧力まで低下させて(この結果として第1供給部Saからの供給速度Vaが低下する。)、時間ta3までを保圧工程とする。
なお、図10(a)、(b)の右側にはそれぞれK1−K1、K2−K2線に沿ったゲート5における円柱状の積層溶融樹脂体の断面図を示している。
また、ここでは、外流路15aから供給される主材樹脂をRa1とし、内流路15cから供給される主材樹脂をRa2とし、主材樹脂Raを区別して示している。
また、参考のためキャビティ4に相当する領域で、一点鎖線で縦帯状の非積層部113の形成位置を示し、中間層112が積層している領域を薄い黒色で塗り潰して示している。
そして、最終的には図10(b)のような積層態様となり、プリフォーム101には、図4に示されるようにスリットSにより縦帯状の非積層部113が形成され、底部16の底面壁106wには中間層112が積層していない状態となる。
図11は、この制御パターンSp2を採用した射出成形工程での、金型1のキャビティ4への、主材樹脂Raと中間層樹脂Rbの充填過程を説明するための概略説明図である。
図11(a)は図9中の時間tb1とts1の間での状態、(b)は時間ts2とta2の間の状態、(c)は時間ta3での状態を示している。
なお、図11(a)と(c)の右側にはそれぞれJ1−J1、J3−J3線に沿った、図11(b)にはJ2a−J2a、J2b−J2b線に沿ったゲート5における円柱状の積層溶融樹脂体の断面図を示している。
また、時間ts1とts2の間ではシャットオフピン20の先端20pの位置をP1として内流路15cからの主材樹脂Ra2の供給を遮断するため、図11(b)の状態では、図11(a)中でC字状に積層している中間層樹脂Rbが、J2b−J2b断面で示されるようにゲート5の中央部に集まって、スリットSも消失して、細円柱のテール状に積層する。
したがって、プリフォーム101には、図5に示されるようにスリットSにより縦帯状の非積層部113が形成され、底部16の底面壁106wにも中間層112が積層した状態とすることができる。
たとえば上記の実施例では容器をPET樹脂製の丸形壜体としたが、ポリプロピレン(PP)樹脂等の2軸延伸ブロー成形可能な他の合成樹脂を使用することができ、また容器の形状も角形壜体等、他の形状とすることができる。
また、主材樹脂と中間層樹脂にそれぞれPET樹脂を使用する場合にも、両樹脂の流動挙動を勘案して両樹脂の分子量等を変えることもできる。
また、必ずしも主材樹脂と中間層樹脂を同じ樹脂にする必要はなく、例えば、主材樹脂にPET樹脂を使用し、中間層樹脂にはガスバリア性の高いEVOH樹脂やMXナイロン樹脂等を着色して使用することにより、中間層で窓部を除いた周壁のほぼ全領域を積層することができ、窓部の機能と、高度なガスバリア機能を併せて持った容器を提供することができる。
また、基体層211は着色透明や半透明とすることもできる。
4 ;キャビティ
5 ;ゲート
11;ノズル部
12a、12b;導入路
13b;流入口
14a1、14a2、14b;マニホールド
15a;外流路
15b;中流路
15c;内流路
15as、15bs、15cs;縮径流路
16R;遮断縦リブ片
17c;開口端部
19;合流路
20;シャットオフピン
20p;先端
21;第1マンドレル
22;第2マンドレル
23;第3マンドレル
P0、P1、P2、P3;(シャットオフピンの先端の)位置
Ra;主材樹脂
Rb;中間層樹脂
Sa;第1供給部
Sb;第2供給部
101;プリフォーム
102;口筒部
103;ネックリング
105;胴部
106;底部
106w;底面壁
111、111a、111b;基体層
112;中間層
113;非積層部
201;容器
202;口筒部
203;ネックリング
204;肩部
205;胴部
206;底部
206w;底面壁
211、211a、211b;基体層
212;中間層
213;非積層部
213w;窓部
131;パリソン
Rcol;着色樹脂
Rtr;透明樹脂
Claims (9)
- 射出成形による2軸延伸ブロー成形用の試験管状のプリフォームであって、透明な基体層(111)により周壁を形成し、該周壁の所定の高さ領域において前記基体層(111)中に、遮光性を有する、若しくは不透明な中間層(112)を積層し、前記中間層(112)は、前記プリフォームの周壁に中心軸方向に沿って縦帯状に延設される該中間層(112)の積層のない非積層部(113)を除く、周壁の全周に亘る領域に積層する構成としたことを特徴とするプリフォーム。
- 略全高さ範囲に亘って中間層(112)を積層した請求項1記載のプリフォーム。
- 少なくとも底面壁(106w)を含む底部(106)近傍の全領域に、中間層(112)を積層する構成とした請求項1または2記載のプリフォーム。
- 前駆体としての射出成形による試験管状のプリフォームを2軸延伸ブロー成形した壜体状の合成樹脂製窓付き容器であって、透明な基体層(211)により周壁を形成し、該周壁の所定の高さ領域に亘って前記基体層(211)中に遮光性を有する、若しくは不透明な中間層(212)を積層し、前記中間層(212)は、前記容器の周壁に該容器の中心軸方向に沿って縦帯状に延設される該中間層(212)の積層のない非積層部(213)を除く、周壁の全周に亘る領域に積層する構成とし、前記非積層部(213)を窓部(213w)としたことを特徴とする合成樹脂製窓付き容器。
- 略全高さ範囲に亘って中間層(212)を積層した請求項4記載の合成樹脂製窓付き容器。
- 少なくとも底面壁(206w)を含む底部(206)近傍の全領域に、中間層(212)を積層する構成とした請求項4または5記載の合成樹脂製窓付き容器。
- 基体層(211)は未着色のポリエチレンテレフタレート樹脂製とし、中間層(212)は着色して不透明のポリエチレンテレフタレート樹脂製とした請求項4、5または6記載の合成樹脂製窓付き容器。
- 請求項1、2または3の何れかに記載される、基体層(111)中に中間層(112)を積層した2軸延伸ブロー成形用の試験管状のプリフォーム(101)の射出成形方法であって、
主材樹脂(Ra)による基体層(111)を形成する内流路(15c)及び外流路(15a)と、該内流路(15c)と外流路(15a)の間に位置し、中間層樹脂(Rb)による中間層(112)を形成する中流路(15b)の3ケの円筒状の層形成流路を同軸心状に配設し、
該3ケの円筒状の層形成流路の下流側に、該3ケの流路が合流する円柱状の合流路(19)を配設し、
前記中流路(15b)の下流側の端部に周方向に該中流路(15b)を横断する遮断縦リブ片(16R)を配設し、該遮断縦リブ片(16R)により中流路(15c)を周方向に分断する構成としたノズル部(11)を配設した射出成形装置を使用し、
主材樹脂(Ra)を外流路(15a)と内流路(15c)から合流路(19)に所定の供給速度で所定時間供給し、
主材樹脂(Ra)が供給される前記所定時間範囲内の一定時間、同時に中間層樹脂(Rb)を中流路(15b)から合流路(19)に所定の供給速度で供給し、
前記合流路(19)に円柱状に合流した、主材樹脂(Ra)中に中間層樹脂(Rb)が積層した円柱状の積層溶融樹脂体を、前記ノズル部(11)の先端に連結して配設される金型(1)のキャビティ(4)の、プリフォーム(101)の底部底壁の中央に相当する位置に配設されるゲート(5)を介して前記キャビティ(4)内に射出、充填し、
前記遮断縦リブ片(16R)による中流路(15c)中での中間層樹脂(Rb)の周方向への分断により、プリフォームの周壁に該プリフォームの中心軸方向に沿って縦帯状に延設される中間層(112)の積層のない非積層部(113)を形成することを特徴とするプリフォームの射出成形方法。 - 使用する射出成形装置を、内流路(15c)の内側に摺動可能に挿入、配設される円柱状のシャットオフピン(20)の先端(20p)の配置位置の制御により、内流路(15c)の合流路(19)への開口端部(17c)の遮断あるいは開放、さらには開度の調整が可能な構成とし、
中間層樹脂(Rb)の供給開始から所定時間後から少なくとも該中間層樹脂(Rb)の供給が終了するまでの間、前記シャットオフピン(20)の先端(20p)の配置位置により前記開口端部(17c)を遮断し、
プリフォームの少なくとも底面壁(106w)を含む底部(106)近傍の全領域に、中間層(112)を積層することを特徴とする請求項8記載の射出成形方法。
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/900,700 US20160185488A1 (en) | 2013-06-28 | 2014-05-27 | Synthetic resin container with window, preform, and method of injection molding preform |
EP14816747.1A EP3015244B1 (en) | 2013-06-28 | 2014-05-27 | Synthetic resin container with window, preform and method of injection molding preform |
CN201480034682.6A CN105324228A (zh) | 2013-06-28 | 2014-05-27 | 合成树脂制带窗容器、预型件以及预型件的射出成形方法 |
AU2014300155A AU2014300155B2 (en) | 2013-06-28 | 2014-05-27 | Synthetic Resin Container with Window, Preform, and Method of Injection Molding Preform |
KR1020157035531A KR20160008634A (ko) | 2013-06-28 | 2014-05-27 | 합성 수지제 창 부착 용기, 프리폼 및 프리폼의 사출 성형 방법 |
CA2916046A CA2916046C (en) | 2013-06-28 | 2014-05-27 | Container with synthetic resin window, preform and preform injection molding method |
AU2017200637A AU2017200637B2 (en) | 2013-06-28 | 2017-01-31 | Synthetic Resin Container with Window, Preform, and Method of Injection Molding Preform |
AU2017203133A AU2017203133B2 (en) | 2013-06-28 | 2017-05-11 | Container with synthetic resin window, preform and preform injection molding method |
US15/707,224 US11365028B2 (en) | 2013-06-28 | 2017-09-18 | Method of injection molding preform |
US18/174,945 US20230211925A1 (en) | 2013-06-28 | 2023-02-27 | Method of injection molding preform |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-136737 | 2013-06-28 | ||
JP2013136737A JP6061250B2 (ja) | 2013-06-28 | 2013-06-28 | 合成樹脂製窓付き容器、プリフォーム及びプリフォームの射出成形方法 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/900,700 A-371-Of-International US20160185488A1 (en) | 2013-06-28 | 2014-05-27 | Synthetic resin container with window, preform, and method of injection molding preform |
US15/707,224 Division US11365028B2 (en) | 2013-06-28 | 2017-09-18 | Method of injection molding preform |
US18/174,945 Division US20230211925A1 (en) | 2013-06-28 | 2023-02-27 | Method of injection molding preform |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014208281A1 true WO2014208281A1 (ja) | 2014-12-31 |
Family
ID=52141629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/064566 WO2014208281A1 (ja) | 2013-06-28 | 2014-05-27 | 合成樹脂製窓付き容器、プリフォーム及びプリフォームの射出成形方法 |
Country Status (9)
Country | Link |
---|---|
US (3) | US20160185488A1 (ja) |
EP (1) | EP3015244B1 (ja) |
JP (1) | JP6061250B2 (ja) |
KR (1) | KR20160008634A (ja) |
CN (3) | CN105324228A (ja) |
AU (3) | AU2014300155B2 (ja) |
CA (1) | CA2916046C (ja) |
TW (2) | TWI598210B (ja) |
WO (1) | WO2014208281A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111212790A (zh) * | 2017-10-27 | 2020-05-29 | 株式会社吉野工业所 | 层压容器 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6921479B2 (ja) * | 2016-02-15 | 2021-08-18 | 大日本印刷株式会社 | 複合容器、複合プリフォームおよびプラスチック製部材 |
WO2018017530A1 (en) * | 2016-07-19 | 2018-01-25 | Mylan Inc. | View window medication packaging |
CN113400512B (zh) * | 2017-06-23 | 2023-06-09 | 赫斯基注塑系统有限公司 | 用于将熔体输送到模腔的热流道喷嘴 |
JP7159514B2 (ja) * | 2017-07-31 | 2022-10-25 | 株式会社吉野工業所 | 積層剥離容器及びプリフォームの製造装置並びにプリフォームの製造方法 |
EP3470195A1 (en) | 2017-10-12 | 2019-04-17 | The Procter & Gamble Company | Blow molded article with visual effects |
KR102009454B1 (ko) | 2017-12-26 | 2019-08-09 | 경희대학교 산학협력단 | 분산 클라우드 환경에서 실시간 데이터 처리의 지연 시간 최소화를 위한 지능적 데이터 전처리 시스템 및 방법 |
US11046473B2 (en) | 2018-07-17 | 2021-06-29 | The Procter And Gamble Company | Blow molded article with visual effects |
WO2020081114A1 (en) | 2018-10-19 | 2020-04-23 | The Procter & Gamble Company | Blow molded article with debossing |
CN113661037B (zh) | 2019-04-11 | 2023-10-13 | 宝洁公司 | 具有视觉效果的吹塑制品 |
US11975522B2 (en) * | 2020-01-08 | 2024-05-07 | The Procter & Gamble Company | Blow molded multilayer article with color gradient |
JP7498027B2 (ja) * | 2020-06-09 | 2024-06-11 | メビウスパッケージング株式会社 | 合成樹脂製容器、及びプリフォーム、並びに射出成形システム |
WO2022014540A1 (ja) * | 2020-07-17 | 2022-01-20 | 日精エー・エス・ビー機械株式会社 | 樹脂製容器の製造方法および製造装置 |
CN117545607A (zh) * | 2021-07-16 | 2024-02-09 | 雀巢产品有限公司 | 具有多层壁的形成瓶的预成型件,以及用这种预成型件获得的气态饮料瓶 |
EP4378847A1 (en) * | 2021-07-30 | 2024-06-05 | Yoshino Kogyosho Co., Ltd. | Liquid container and liquid container with content liquid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6075009U (ja) * | 1983-10-31 | 1985-05-25 | 三井化学株式会社 | 二軸延伸中空成形用プリフオ−ム |
JP2005153901A (ja) | 2003-11-21 | 2005-06-16 | Yoshino Kogyosho Co Ltd | 注出容器 |
JP2010012605A (ja) * | 2008-06-30 | 2010-01-21 | Yoshino Kogyosho Co Ltd | 合成樹脂製積層壜体、射出成形装置及び積層プリフォームの成形方法 |
JP2013095035A (ja) * | 2011-10-31 | 2013-05-20 | Yoshino Kogyosho Co Ltd | プリフォームの射出成形装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU549286B2 (en) * | 1981-01-22 | 1986-01-23 | Toyo Boseki K.K. | Blow moulded multiply vessel |
JPS58167504A (ja) * | 1982-03-26 | 1983-10-03 | Shinsei Dentaru Lab:Kk | 樹脂製歯科補綴物 |
JPS6075009A (ja) * | 1983-09-30 | 1985-04-27 | 株式会社ファニーパーツカシワギ | ズボン吊りを備えた衣類収納ダンス |
JPH01254539A (ja) * | 1988-03-30 | 1989-10-11 | Toyo Seikan Kaisha Ltd | 耐熱圧性多層容器及びその製法 |
DE19635334A1 (de) * | 1996-08-31 | 1998-03-05 | Guenter Dipl Ing Richter | Faßartiger Behälter aus Kunststoff sowie Verfahren und Vorrichtung zu seiner Herstellung |
US5927525A (en) * | 1997-04-28 | 1999-07-27 | Plastipak Packaging, Inc. | Multi-layer containers and preforms |
US6123211A (en) * | 1997-10-14 | 2000-09-26 | American National Can Company | Multilayer plastic container and method of making the same |
US6352426B1 (en) * | 1998-03-19 | 2002-03-05 | Advanced Plastics Technologies, Ltd. | Mold for injection molding multilayer preforms |
US6596213B2 (en) * | 2001-04-06 | 2003-07-22 | Kortec, Inc. | Method of molding multi-layer polymer plastic articles with control of relative shifting of the core layer |
JP3978012B2 (ja) * | 2001-11-01 | 2007-09-19 | 株式会社クレハ | 多層容器及びその製造方法 |
JP4771315B2 (ja) * | 2006-08-31 | 2011-09-14 | 株式会社吉野工業所 | 多層ブロー容器 |
EP2311624B1 (en) * | 2008-06-30 | 2019-09-18 | Yoshino Kogyosyo Co., Ltd. | Synthetic-resin laminated bottle body |
JP5817077B2 (ja) * | 2011-11-17 | 2015-11-18 | 株式会社吉野工業所 | 射出成形方法 |
-
2013
- 2013-06-28 JP JP2013136737A patent/JP6061250B2/ja active Active
-
2014
- 2014-05-27 WO PCT/JP2014/064566 patent/WO2014208281A1/ja active Application Filing
- 2014-05-27 CN CN201480034682.6A patent/CN105324228A/zh active Pending
- 2014-05-27 CA CA2916046A patent/CA2916046C/en active Active
- 2014-05-27 CN CN201611176594.7A patent/CN106863756A/zh active Pending
- 2014-05-27 CN CN201910093236.7A patent/CN109940857A/zh active Pending
- 2014-05-27 US US14/900,700 patent/US20160185488A1/en not_active Abandoned
- 2014-05-27 KR KR1020157035531A patent/KR20160008634A/ko not_active Application Discontinuation
- 2014-05-27 AU AU2014300155A patent/AU2014300155B2/en active Active
- 2014-05-27 EP EP14816747.1A patent/EP3015244B1/en active Active
- 2014-06-26 TW TW103122111A patent/TWI598210B/zh active
- 2014-06-26 TW TW105142559A patent/TWI673151B/zh active
-
2017
- 2017-01-31 AU AU2017200637A patent/AU2017200637B2/en active Active
- 2017-05-11 AU AU2017203133A patent/AU2017203133B2/en active Active
- 2017-09-18 US US15/707,224 patent/US11365028B2/en active Active
-
2023
- 2023-02-27 US US18/174,945 patent/US20230211925A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6075009U (ja) * | 1983-10-31 | 1985-05-25 | 三井化学株式会社 | 二軸延伸中空成形用プリフオ−ム |
JP2005153901A (ja) | 2003-11-21 | 2005-06-16 | Yoshino Kogyosho Co Ltd | 注出容器 |
JP2010012605A (ja) * | 2008-06-30 | 2010-01-21 | Yoshino Kogyosho Co Ltd | 合成樹脂製積層壜体、射出成形装置及び積層プリフォームの成形方法 |
JP2013095035A (ja) * | 2011-10-31 | 2013-05-20 | Yoshino Kogyosho Co Ltd | プリフォームの射出成形装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3015244A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111212790A (zh) * | 2017-10-27 | 2020-05-29 | 株式会社吉野工业所 | 层压容器 |
Also Published As
Publication number | Publication date |
---|---|
TWI598210B (zh) | 2017-09-11 |
CA2916046C (en) | 2018-11-20 |
AU2014300155B2 (en) | 2017-03-09 |
CN105324228A (zh) | 2016-02-10 |
US20230211925A1 (en) | 2023-07-06 |
EP3015244A1 (en) | 2016-05-04 |
AU2017203133A1 (en) | 2017-06-01 |
TW201509629A (zh) | 2015-03-16 |
AU2017200637A1 (en) | 2017-03-02 |
US11365028B2 (en) | 2022-06-21 |
KR20160008634A (ko) | 2016-01-22 |
US20180002071A1 (en) | 2018-01-04 |
CN106863756A (zh) | 2017-06-20 |
AU2017200637B2 (en) | 2019-06-06 |
CA2916046A1 (en) | 2014-12-31 |
CN109940857A (zh) | 2019-06-28 |
AU2017203133B2 (en) | 2018-10-25 |
JP6061250B2 (ja) | 2017-01-18 |
AU2014300155A1 (en) | 2016-01-21 |
EP3015244B1 (en) | 2020-05-06 |
EP3015244A4 (en) | 2017-03-01 |
JP2015009451A (ja) | 2015-01-19 |
TW201710049A (zh) | 2017-03-16 |
TWI673151B (zh) | 2019-10-01 |
US20160185488A1 (en) | 2016-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014208281A1 (ja) | 合成樹脂製窓付き容器、プリフォーム及びプリフォームの射出成形方法 | |
KR102088729B1 (ko) | 프리폼의 사출 성형 장치 및 프리폼 | |
JP4953178B2 (ja) | 合成樹脂製積層壜体、射出成形装置及び積層プリフォームの成形方法 | |
WO2010001842A1 (ja) | 合成樹脂製積層壜体、射出成形装置及び積層プリフォームの成形方法 | |
WO2012147501A1 (ja) | プリフォームの射出成形装置、射出成形方法及び合成樹脂製壜体 | |
JP4953179B2 (ja) | 積層プリフォームの成形方法 | |
TWI673157B (zh) | 具有視窗之合成樹脂製容器、以及瓶胚 | |
JP2013095035A (ja) | プリフォームの射出成形装置 | |
TWI609761B (zh) | 具有視窗之合成樹脂製容器、瓶胚以及瓶胚的射出成形裝置 | |
JP6037248B2 (ja) | プリフォーム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201480034682.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14816747 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20157035531 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014816747 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2916046 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14900700 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2014300155 Country of ref document: AU Date of ref document: 20140527 Kind code of ref document: A |