JPH04173134A - Heat-resistant and sunproof bottle - Google Patents
Heat-resistant and sunproof bottleInfo
- Publication number
- JPH04173134A JPH04173134A JP2299484A JP29948490A JPH04173134A JP H04173134 A JPH04173134 A JP H04173134A JP 2299484 A JP2299484 A JP 2299484A JP 29948490 A JP29948490 A JP 29948490A JP H04173134 A JPH04173134 A JP H04173134A
- Authority
- JP
- Japan
- Prior art keywords
- light
- heat
- bottle
- polyester
- pigment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000049 pigment Substances 0.000 claims abstract description 43
- 229920000728 polyester Polymers 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 14
- -1 Aromatic dicarboxylic acids Chemical class 0.000 description 18
- 238000002425 crystallisation Methods 0.000 description 14
- 230000008025 crystallization Effects 0.000 description 14
- 229920001225 polyester resin Polymers 0.000 description 11
- 239000004645 polyester resin Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000071 blow moulding Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229920001230 polyarylate Polymers 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000010102 injection blow moulding Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- WVDRSXGPQWNUBN-UHFFFAOYSA-N 4-(4-carboxyphenoxy)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1OC1=CC=C(C(O)=O)C=C1 WVDRSXGPQWNUBN-UHFFFAOYSA-N 0.000 description 1
- UUAGPGQUHZVJBQ-UHFFFAOYSA-N Bisphenol A bis(2-hydroxyethyl)ether Chemical compound C=1C=C(OCCO)C=CC=1C(C)(C)C1=CC=C(OCCO)C=C1 UUAGPGQUHZVJBQ-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- QYQADNCHXSEGJT-UHFFFAOYSA-N cyclohexane-1,1-dicarboxylate;hydron Chemical compound OC(=O)C1(C(O)=O)CCCCC1 QYQADNCHXSEGJT-UHFFFAOYSA-N 0.000 description 1
- GHLKSLMMWAKNBM-UHFFFAOYSA-N dodecane-1,12-diol Chemical compound OCCCCCCCCCCCCO GHLKSLMMWAKNBM-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 235000020124 milk-based beverage Nutrition 0.000 description 1
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
- B29C49/0006—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material for heating or cooling
-
- 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
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
-
- 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
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0722—Preforms or parisons characterised by their configuration having variable wall thickness 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
- B29C2949/0723—Preforms or parisons characterised by their configuration having variable wall thickness 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
-
- 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
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
- B29C2949/0731—Preforms or parisons characterised by their configuration having variable diameter 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
- B29C2949/0732—Preforms or parisons characterised by their configuration having variable diameter 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
- B29C2949/07—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
- B29C2949/0772—Closure retaining means
- B29C2949/0773—Threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—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
- B29C2949/0777—Tamper-evident band retaining ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
-
- 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
-
- 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
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
- B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
- B29C49/6452—Thermal conditioning of preforms characterised by temperature differential through the preform length by heating the neck
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- 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
-
- 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
- B29K2995/0037—Other properties
- B29K2995/0041—Crystalline
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、延伸ブロー成形によって製造される樹脂製ボ
゛トルに関し、更に詳しくは耐熱性と遮光性に優れたボ
トルに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a resin bottle manufactured by stretch blow molding, and more particularly to a bottle with excellent heat resistance and light shielding properties.
〔従来の技術及び発明が解決しようとする課題〕近年、
ポリエステル製ボトルに80〜95℃の液体を充填する
いわゆるホットフィル(加熱充填)や、ホットシャワー
によるバステライジング(熱殺菌)が行われるようにな
り、そのためボトルの口部付近に優れた耐熱性が要求さ
れるようになった。というのは、ホットフィルでは口部
が熱い液体に最初にさらされ、またホットシャワーによ
るバステライジングでも、ホットシャワーをボトル上方
から注ぐのが一般的であって、未延伸ポリエステルの口
部では熱変形が生じてしまうからである。[Problems to be solved by conventional techniques and inventions] In recent years,
So-called hot fill (heat filling), in which polyester bottles are filled with liquid at 80 to 95°C, and batherizing (heat sterilization) using hot showers, have created excellent heat resistance near the mouth of the bottle. It has become required. This is because in hot-filling, the mouth is first exposed to hot liquid, and in hot shower basterizing, the hot shower is generally poured from above the bottle, and the mouth of unstretched polyester is exposed to heat. This is because it will occur.
このような事情により、ポリエステル製ボトルに耐熱性
を賦与するために種々の試みがなされている。Under these circumstances, various attempts have been made to impart heat resistance to polyester bottles.
そのような試みとして、ポリエステルと耐熱性樹脂層を
共射出して多層化した予備成形体とし、それを延伸ブロ
ー成形することによって耐熱性のボトルを製造する方法
が、特開昭63−19208号に開示されている。また
本出願人は先に、共射出方法を改善することによって、
ボトルをさらに多層化することを提案した(特願平1−
163261号及び特願平2−16329号)。これら
の多層ボトルにおいては、特に口部において多くの耐熱
性樹脂層を有し、良好な耐熱性を備えている。As such an attempt, a method for manufacturing a heat-resistant bottle by co-injecting polyester and a heat-resistant resin layer to form a multi-layered preform and stretch-blow molding it was disclosed in JP-A No. 63-19208. has been disclosed. In addition, the applicant has previously improved the co-injection method,
We proposed making the bottle even more layered (Patent Application No. 1999-
No. 163261 and Japanese Patent Application No. 16329 (Hei 2-16329). These multilayer bottles have many heat-resistant resin layers, especially in the mouth, and have good heat resistance.
また、熱処理による結晶化によって口部を白化し、それ
によって口部に耐熱性を付与することも提案されている
(特開昭57−201631号、特開昭58−2173
26号、特開昭59−138417号、特公昭59−3
3101号等)。It has also been proposed to whiten the mouth by crystallization through heat treatment, thereby imparting heat resistance to the mouth (JP-A-57-201631, JP-A-58-2173).
No. 26, JP-A-59-138417, JP-A-59-3
3101 etc.).
一方、乳飲料、乳酸飲料等の飲料類の中には、長時間光
にさらされると変質するものが多い。従って、製造から
消費までの間、変質を防止して品質保証するために、そ
れらを封入するボトルは遮光性を有しているのが望まし
い。On the other hand, many beverages such as milk drinks and lactic acid drinks deteriorate when exposed to light for a long time. Therefore, in order to prevent deterioration and guarantee quality during the period from manufacture to consumption, it is desirable that the bottle in which they are enclosed has light-shielding properties.
そのような遮光性のボトルとして、例えば着色ガラスの
ボトルや、あるいはそのボトルの胴部にさらに紙を巻い
たもの等がある。しかし、それらはデザインが極端に制
約され、外観上見劣りするものが多い。また、重いので
取扱いが不便である。Examples of such light-shielding bottles include bottles made of colored glass, bottles whose bodies are further wrapped in paper, and the like. However, their designs are extremely limited, and many of them are inferior in appearance. In addition, it is heavy, making it inconvenient to handle.
また、ブロー成形ボトルとして、ポリスチレンにチタン
ホワイト(Ti02) を分散させた樹脂で製造した
ものが比較的遮光性に優れていて、一部で用いられてい
る。しかし、そのボトルは紫外線に対する遮光性は高い
けれども、可視光が多く透過してしまうため、内容物が
変質しやすく、賞味期間が十分に長くはなかった。In addition, blow-molded bottles made of resin in which titanium white (Ti02) is dispersed in polystyrene have relatively excellent light-shielding properties and are used in some cases. However, although these bottles have high UV blocking properties, a large amount of visible light passes through them, so the contents tend to deteriorate and the shelf life is not long enough.
従って本発明の目的は、耐熱性を有するとともに遮光性
に優れたブロー成形ボトルを提供することである。Therefore, an object of the present invention is to provide a blow-molded bottle that has heat resistance and excellent light shielding properties.
上記目的に鑑み鋭意研究の結果、本発明者は、ブロー成
形ボトルの口部を熱処理によって白化し、さらに口部及
び胴部を形成するポリエステル中に光反射性顔料と光吸
収性顔料を同時に含有させることによって、耐熱性と遮
光性の優れたものにすることができることを発見し、本
発明を完成した。As a result of intensive research in view of the above objectives, the present inventors whitened the mouth of a blow-molded bottle by heat treatment, and further contained a light-reflecting pigment and a light-absorbing pigment simultaneously in the polyester that forms the mouth and body. They discovered that it is possible to achieve excellent heat resistance and light-shielding properties by doing so, and have completed the present invention.
すなわち本発明の耐熱遮光性ボトルは、口部と、前記口
部の下端に設けられたサポー)IJソング、前記サポー
トリングに続く肩部と、胴部及び底部とを有する樹脂製
のものであって、前記口部は熱処理による結晶化によっ
て白化されていて耐熱性を有し、前記口部及び胴部を形
成している樹脂はポリエステル100重量部に対して、
光反射性顔料2.5〜6.0重量部と、光吸収性顔料0
.005〜0.015重量部とを含有し、もって遮光性
を有することを特徴とする。That is, the heat-resistant and light-shielding bottle of the present invention is made of resin and has a mouth, a support IJ song provided at the lower end of the mouth, a shoulder continuing to the support ring, a body and a bottom. The mouth part is whitened by crystallization by heat treatment and has heat resistance, and the resin forming the mouth part and body part is made of polyester based on 100 parts by weight of polyester.
2.5 to 6.0 parts by weight of light-reflecting pigment and 0 parts by weight of light-absorbing pigment
.. 005 to 0.015 parts by weight, and is characterized by having light-shielding properties.
光反射性顔料としてはチタンホワイトを用い、光吸収性
顔料としてはカーボンブラックを用いるのが好ましい。It is preferable to use titanium white as the light-reflecting pigment and carbon black as the light-absorbing pigment.
また、ボトルの口部の耐熱性をいっそう向上させるため
に、口部に耐熱性樹脂層を設けるのが望ましい。Furthermore, in order to further improve the heat resistance of the mouth of the bottle, it is desirable to provide a heat-resistant resin layer on the mouth.
以下、本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第1図に本発明の一実施例によるボトルを示す。FIG. 1 shows a bottle according to one embodiment of the present invention.
ボトル10は、口部1と、肩部2と、それらの間に設け
られたサポートリング5と、胴部3と、底部4とからな
る。また、ボトルlOは全体をポリエステルで形成して
もよいが、ポリエステル層7と、耐熱性樹脂層9とから
なる多層構造とするのが好ましい。すなわち第1図にお
いて、口部1とサポートリング5は3層の耐熱性樹脂層
9と2層のポリエステル層7からなる5層構造を有し、
胴部3と底部4は、1層の顔料含有ポリエステル層7か
らなる。The bottle 10 consists of a mouth part 1, a shoulder part 2, a support ring 5 provided between them, a body part 3, and a bottom part 4. Moreover, although the bottle 1O may be formed entirely of polyester, it is preferable to have a multilayer structure consisting of a polyester layer 7 and a heat-resistant resin layer 9. That is, in FIG. 1, the mouth part 1 and the support ring 5 have a five-layer structure consisting of three heat-resistant resin layers 9 and two polyester layers 7,
The body part 3 and the bottom part 4 consist of one pigment-containing polyester layer 7.
さらに、第2図に拡大して示すように、口部1とサポー
トリング5は、後述する熱処理によって結晶化されてい
る(点打部分)。そのため白化していて、耐熱性がいっ
そう向上している。Further, as shown in an enlarged view in FIG. 2, the mouth portion 1 and the support ring 5 are crystallized by a heat treatment described later (dotted portion). Therefore, it is whitened and its heat resistance is further improved.
多層のボトル10は、例えば特開平1−146707号
に例示された方法でポリエステル樹脂と耐熱性樹脂を共
射出成形することによって予備成形体を製造し、その予
備成形体を二軸延伸ブロー成形することによって製造す
る。その場合、樹脂を射出するホットランナ−ノズル内
の樹脂流路の数や共射出開始、停止のタイミングを変更
することによって、完成後の各部位の層の数を適宜変更
することができる。The multilayer bottle 10 is manufactured by co-injection molding a polyester resin and a heat-resistant resin using the method exemplified in JP-A No. 1-146707, for example, to produce a preform, and then biaxially stretching and blow molding the preform. manufactured by In that case, by changing the number of resin channels in the hot runner nozzle that injects the resin and the timing of starting and stopping co-injection, the number of layers in each part after completion can be changed as appropriate.
ポリエステル層7を構成するポリエステル樹脂としては
、飽和ジカルボン酸と飽和二価アルコールとからなる熱
可塑性樹脂が使用できる。飽和ジカルボン酸としては、
テレフタル酸、イソフタル酸、フタル酸、ナフタレン−
1,4−又は2,6−ジカルボン酸、ジフェニルエーテ
ル−4,4’−ジカルボン酸、ジフェニルジカルボン酸
類、ジフェノキシェタンジエタンジカルボン酸類等の芳
香族ジカルボン酸類、アジピン酸、セパチン酸、アゼラ
イン酸、デカン−1,10−ジカルボン酸等の脂肪族ジ
カルボン酸、シクロヘキザンジカルボン酸等の脂環族ジ
カルボン酸等を使用することができる。また飽和二価ア
ルコールとしては、エチレンクリコール、プロピレング
リコール、トリメチレングリコール、テトラメチレング
リコール、ジエチレングリコール、ポリエチレングリコ
ール、ポリプロピレングリコール、ポリテトラメチレン
グリコール、ヘキサメチレングリコール、ドデカメチレ
ングリコール、ネオペンチルグリコール等の脂肪族グリ
コール類、シクロヘキサンジメタツール等の脂環族グリ
コール、2,2−ビス(4′−β−ヒドロキシエトキシ
フェニル)プロパン、その他の芳香族ジオール類等を使
用することができる。好ましいポリエステルは、テレフ
タル酸とエチレングリコールとからなるポリエチレンテ
レフタレートである。As the polyester resin constituting the polyester layer 7, a thermoplastic resin made of a saturated dicarboxylic acid and a saturated dihydric alcohol can be used. As a saturated dicarboxylic acid,
Terephthalic acid, isophthalic acid, phthalic acid, naphthalene
Aromatic dicarboxylic acids such as 1,4- or 2,6-dicarboxylic acid, diphenyl ether-4,4'-dicarboxylic acid, diphenyldicarboxylic acids, diphenoxychetane diethanedicarboxylic acids, adipic acid, sepatic acid, azelaic acid, decane Aliphatic dicarboxylic acids such as -1,10-dicarboxylic acid, alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid, etc. can be used. Saturated dihydric alcohols include fatty acids such as ethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, hexamethylene glycol, dodecamethylene glycol, and neopentyl glycol. Group glycols, alicyclic glycols such as cyclohexane dimetatool, 2,2-bis(4'-β-hydroxyethoxyphenyl)propane, other aromatic diols, and the like can be used. A preferred polyester is polyethylene terephthalate consisting of terephthalic acid and ethylene glycol.
上記ポリエステル樹脂は、固有粘度が0.5〜1゜5、
好ましくは0.55〜0.85の範囲の値を有する。The above polyester resin has an intrinsic viscosity of 0.5 to 1°5,
Preferably it has a value in the range of 0.55 to 0.85.
またこのようなポリエステルは、溶融重合で製造され、
180〜250 ℃の温度下で減圧処理または不活性ガ
ス雰囲気で熱処理されたもの、または固相重合して低分
子量重合物であるオリゴマーやアセトアルデヒドの含有
量を低減させたものが好適である。Also, such polyesters are produced by melt polymerization,
Those that have been subjected to a reduced pressure treatment or heat treatment in an inert gas atmosphere at a temperature of 180 to 250°C, or those that have been subjected to solid phase polymerization to reduce the content of low molecular weight polymers such as oligomers and acetaldehyde are suitable.
上記ポリエステル100重量部に対して、光反射性顔料
を2.5〜6,0重量部添加する。光反射性顔料として
は、チタンホワイト(T102) 、アルミニウム粉
、マイカ粉、硫化亜鉛、亜鉛華等の白色顔料が好ましく
、特にルチル型のチタンホワイトを用いるのが好ましい
。樹脂に光が入射すると、光反射性顔料の粒子によって
光が散乱される。2.5重量部未満では光の散乱効果が
十分に得られず、6.0重量部を超えるとそれ以上添加
しても効果の著しい向上がなく、また樹脂の成形性が悪
くなる。2.5 to 6.0 parts by weight of a light-reflecting pigment is added to 100 parts by weight of the above polyester. As the light-reflective pigment, white pigments such as titanium white (T102), aluminum powder, mica powder, zinc sulfide, and zinc white are preferable, and it is particularly preferable to use rutile-type titanium white. When light enters the resin, it is scattered by particles of the light-reflective pigment. If it is less than 2.5 parts by weight, a sufficient light scattering effect cannot be obtained, and if it exceeds 6.0 parts by weight, there is no significant improvement in the effect even if more than 6.0 parts by weight is added, and the moldability of the resin deteriorates.
光反射性顔料の好ましい含有量は4〜5.3重量部であ
る。The preferred content of the light-reflecting pigment is 4 to 5.3 parts by weight.
また、上記ポリエステル100重量部に対して、さらに
光吸収性顔料を0.005〜0.015重量部添加する
。光吸収性顔料としては、カーボンブラック、セラミッ
クブラック、ボーンブラック等の有色顔料が好ましく、
特に黒色顔料であるカーボンブラックを用いるのが好ま
しい。光反射性顔料の粒子によって散乱された光は、光
吸収性顔料の粒子によって吸収されるので、樹脂を光が
透過しない。Further, 0.005 to 0.015 parts by weight of a light-absorbing pigment is further added to 100 parts by weight of the above polyester. As the light-absorbing pigment, colored pigments such as carbon black, ceramic black, and bone black are preferable.
In particular, it is preferable to use carbon black, which is a black pigment. The light scattered by the particles of the light-reflecting pigment is absorbed by the particles of the light-absorbing pigment, so that the light does not pass through the resin.
光吸収性顔料が0.005重量部未満では光の吸収効果
が十分に得られず、0.015重量部を超えるとそれ以
上添加しても効果の著しい向上がなく、また、樹脂の色
が黒ずんで、ボトルの外観が損なわれる。If the light-absorbing pigment is less than 0.005 parts by weight, a sufficient light absorption effect cannot be obtained, and if it exceeds 0.015 parts by weight, the effect will not be significantly improved even if it is added further, and the color of the resin will change. It darkens and spoils the appearance of the bottle.
光吸収性顔料の好ましい含有量は0.009〜0.01
2重量部である。The preferred content of light-absorbing pigment is 0.009 to 0.01
2 parts by weight.
さらに本発明のポリエステル層中には、上記光吸収性顔
料を隠蔽し、その発色を抑え、もってボトルの色合いを
良好に保つために、一般にベンガラと称される酸化鉄(
Fe203)を005〜0.1 重量部添加するのが好
ましい。0.05重量部未満では上記の効果が得られず
、0.1 重量部を超えると酸化鉄 ′による着色
が著しくなり、ボトルの外観が損なわれる。酸化鉄の好
ましい含有量は0.07〜0.09重量部である。Furthermore, in the polyester layer of the present invention, iron oxide (generally called red iron oxide) is used to hide the light-absorbing pigment, suppress its color development, and maintain a good color of the bottle.
It is preferable to add 0.05 to 0.1 parts by weight of Fe203). If it is less than 0.05 part by weight, the above effect cannot be obtained, and if it exceeds 0.1 part by weight, coloring due to iron oxide' becomes significant and the appearance of the bottle is impaired. The preferred content of iron oxide is 0.07 to 0.09 parts by weight.
さらに、ポリエステル層中に、本発明の目的を損なわな
い範囲で滑剤、安定剤、酸化防止剤、熱劣化防止剤、紫
外線劣化防止剤、帯電防止剤、抗菌剤等の添加剤やその
他の樹脂を適量加えることができる。Furthermore, additives such as lubricants, stabilizers, antioxidants, heat deterioration inhibitors, ultraviolet deterioration inhibitors, antistatic agents, antibacterial agents, and other resins may be added to the polyester layer within a range that does not impair the purpose of the present invention. You can add an appropriate amount.
一方、耐熱性樹脂層9を構成する樹脂としては、ボリア
リレート、ポリカーボネート、ポリエチレンナックレー
ト、ポリアセクール、ポリサルフォン、ポリエーテルエ
ーテルケトン、ホリエーテルサルフォン、ポリエーテル
イミド、ポリフェニレンザルファイド、及びこれらの樹
脂とポリエチレンテレフタレートとのブレンドポリマー
、及び上記耐熱性樹脂間のブレンドポリマー、さらには
上記耐熱性樹脂の2種以上の樹脂とポリエチレンテレフ
タレートとのブレンドポリマー、Uポリマー(ユニチカ
製、ボリアリレートとポリエチレンテレフタレートのブ
レンドポリマー)、ボリアリレートとポリカーボネート
及びポリエチレンテレフタレートのポリマーアロイ等を
使用し得る。On the other hand, the resin constituting the heat-resistant resin layer 9 includes polyarylate, polycarbonate, polyethylene naclate, polyacecool, polysulfone, polyetheretherketone, polyethersulfone, polyetherimide, polyphenylene sulfide, and these resins. Blend polymers with polyethylene terephthalate, blend polymers between the above heat-resistant resins, blend polymers with two or more of the above heat-resistant resins and polyethylene terephthalate, U polymer (manufactured by Unitika, blend of polyarylate and polyethylene terephthalate) polymers), polymer alloys of polyarylates and polycarbonates and polyethylene terephthalates, etc. may be used.
また、ポリエステル層7と耐熱性樹脂層9に加えて、酸
素、炭酸ガス等のガスバリヤ−性に優れた樹脂の層を設
けてもよい。Further, in addition to the polyester layer 7 and the heat-resistant resin layer 9, a layer of resin having excellent gas barrier properties against oxygen, carbon dioxide, etc. may be provided.
口部の結晶化は、口部1をその周囲から加熱して行うこ
とができる。具体的には、予備成形品の成形後、冷却離
型し、別工程で加熱する方法(オフライン法)、あるい
は予備成形品の成形冷却過程において、徐冷・保温する
ことにより、口部1を結晶化する方法(インライン法)
のどちらによっても行うことができる。いずれの方法に
おいても、口部1を把持するリップ金型内にヒータを内
蔵した加熱金型により行うのが、装置が大掛かりとなら
ず好ましい。Crystallization of the mouth part can be performed by heating the mouth part 1 from its surroundings. Specifically, after the preform is molded, the mouth part 1 is cooled and released, and then heated in a separate process (off-line method), or by slowly cooling and keeping warm during the molding and cooling process of the preform. Method of crystallization (inline method)
This can be done either way. In either method, it is preferable to use a heating mold in which a heater is built in a lip mold that grips the mouth portion 1, since the apparatus is not large-scale.
オフライン法での加熱温度は、ポリエステル層7の結晶
化温度以上の温度である必要があり、特に、ガラス転移
点以上で140〜210 ℃であるのが好ましい。加熱
温度が160 ℃未満であると結晶化工程に時間がかか
りすぎ、また200 ℃を超えるとポリエステル層の急
激な加熱により気泡が発生し、口部の形状が崩れてしま
う。好ましい加熱温度は160〜180 ℃である。加
熱時間は70〜150秒間とする。The heating temperature in the offline method needs to be higher than the crystallization temperature of the polyester layer 7, and is particularly preferably higher than the glass transition point and 140 to 210°C. If the heating temperature is less than 160°C, the crystallization process will take too long, and if it exceeds 200°C, air bubbles will be generated due to rapid heating of the polyester layer, causing the shape of the mouth to collapse. The preferred heating temperature is 160-180°C. The heating time is 70 to 150 seconds.
一方、インライン法においてはポリエステル層と耐熱性
樹脂層がともに高温の溶融状態より徐冷する工程を経て
結晶化されるため、リップ金型自体を高温に加熱する必
要はない。この方法において徐冷・保温をなし得る加熱
温度としては、具体的には90〜110℃であるのが好
ましい。加熱温度が90℃未満ではインラインの成形サ
イクル内(通常70〜150秒間)で結晶化が十分にな
されない。On the other hand, in the in-line method, both the polyester layer and the heat-resistant resin layer are crystallized through a step of slow cooling from a high-temperature molten state, so there is no need to heat the lip mold itself to a high temperature. In this method, the heating temperature that allows slow cooling and heat retention is preferably 90 to 110°C. If the heating temperature is less than 90°C, sufficient crystallization will not occur within the in-line molding cycle (usually 70 to 150 seconds).
また130℃を超えると口部から胴部へかけてのポリエ
ステル層の結晶化が発生し、ボトル成形後肩部となる部
分が不透明となる。好ましい加熱温度は90〜110℃
である。この加熱温度において、結晶化に要する時間は
上記インラインの成形サイクルと同様70〜150秒で
十分である。If the temperature exceeds 130°C, crystallization of the polyester layer from the mouth to the body will occur, and the part that will become the shoulder after bottle molding will become opaque. The preferred heating temperature is 90-110℃
It is. At this heating temperature, the time required for crystallization is 70 to 150 seconds, which is the same as the above-mentioned in-line molding cycle.
本発明のボトルは、口部が熱処理による結晶化によって
白化されているので、口部の耐熱性が著しく向上してい
る。In the bottle of the present invention, the mouth part is whitened by crystallization through heat treatment, so the heat resistance of the mouth part is significantly improved.
また、本発明のボトルが十分な遮光性を有するのは、以
下の理由によるものと考えられる。すなわち、第3図に
示すように、ポリエステル層7中に分散した光反射性顔
料の粒子20により、入射した光は散乱され、ポリエス
テル層7を通過する際の光路は著しく長くなる。またポ
リエステル層7中には光吸収性顔料の粒子30も存在す
るので、散乱光は光吸収性顔料の粒子30に当たり、吸
収される確率が高くなる。このため、光吸収性顔料が比
較的少なくても、全体として吸光率は十分に高くなる。Moreover, the reason why the bottle of the present invention has sufficient light-shielding properties is considered to be due to the following reasons. That is, as shown in FIG. 3, the incident light is scattered by the light-reflective pigment particles 20 dispersed in the polyester layer 7, and the optical path when passing through the polyester layer 7 becomes significantly longer. Furthermore, since the light-absorbing pigment particles 30 are also present in the polyester layer 7, the scattered light has a high probability of hitting the light-absorbing pigment particles 30 and being absorbed. Therefore, even if the amount of light-absorbing pigment is relatively small, the absorbance as a whole can be sufficiently high.
このような原理により、多量の光吸収性顔料を使用しな
くても、十分な遮光性が得られる。Based on this principle, sufficient light-shielding properties can be obtained without using a large amount of light-absorbing pigment.
本発明を以下の具体的実施例により、さらに詳細に説明
する。The present invention will be explained in more detail with reference to the following specific examples.
実施例1
ポリエチレンテレツクレート樹脂(ユニチカ(株)製N
B)l−2050> 100 M滑部に対して、チタン
ホワイト5.29重量部、カーボンブラック0.01重
量部、酸化鉄0.07重量部と、さらに滑剤としてアル
キレンビス脂肪酸アマイド0.1重量部及び高級脂肪酸
塩0.16重量部を添加して、ポリエステル樹脂を調製
した。Example 1 Polyethylene telescrate resin (Unitika Co., Ltd. N)
B) l-2050>100 M For the lubricant, 5.29 parts by weight of titanium white, 0.01 parts by weight of carbon black, 0.07 parts by weight of iron oxide, and 0.1 part by weight of alkylene bis fatty acid amide as a lubricant. and 0.16 parts by weight of higher fatty acid salt to prepare a polyester resin.
また耐熱性樹脂として、ポリエチレンテレフタレートと
ボリアリレートのブレンドポリマー(Uポリマー840
0、ユニチカ(株)製)を調製した。In addition, as a heat-resistant resin, a blend polymer of polyethylene terephthalate and polyarylate (U Polymer 840
0, manufactured by Unitika Co., Ltd.) was prepared.
上記ポリエステル樹脂と耐熱性樹脂を用い、共射出成形
により予備成形体を成形した。A preform was molded by co-injection molding using the above polyester resin and heat-resistant resin.
得られた多層予備成形体の口部を、リップ金型内にヒー
タを内蔵した加熱金型により、170℃で140秒間加
熱し、結晶化を行った。The mouth of the obtained multilayer preform was heated at 170° C. for 140 seconds using a heating mold with a heater built into the lip mold to effect crystallization.
次いで、この予備成形体を二軸延伸ブロー成形すること
によって、約0.35mmのほぼ均一な肉厚を有し、容
量900 mlの乳白色を呈するボトルを製造した。こ
のボトルは第1図に示すような、口部は5層からなる多
層構造を有していた。Next, this preform was subjected to biaxial stretch blow molding to produce a milky white bottle with a substantially uniform wall thickness of about 0.35 mm and a capacity of 900 ml. The mouth of this bottle had a multilayered structure consisting of five layers, as shown in FIG.
このボトルの胴部の光透過度を、分光光度計を用いて測
定したところ、600r+m以下の波長の光を100
%カットし、優れた遮光性を有することが確δ忍された
。When the light transmittance of the body of this bottle was measured using a spectrophotometer, it was found that light with a wavelength of 600r+m or less was
% and was confirmed to have excellent light blocking properties.
またこのボトルに乳酸飲料を加熱充填して封入し、−年
間保管した後、官能テストを行った結果、良好な味を示
し、十分に長い賞味期間が保証されることが確言忍され
た。In addition, the lactic acid beverage was heated and sealed in the bottle, and after being stored for one year, a sensory test was conducted, and the results confirmed that the bottle had a good taste and had a sufficiently long shelf life.
実施例2及び比較例1〜3
ポリエチレンテレフタレーNit脂(ユニチカ(株)製
NEH−2050) 100重量部に対して、チタンホ
ワイト5.0 重量部とカーボンブラック0.01重量
部を添加して、ポリエステル樹脂を調製した。Example 2 and Comparative Examples 1 to 3 5.0 parts by weight of titanium white and 0.01 parts by weight of carbon black were added to 100 parts by weight of polyethylene terephthalate Nit resin (NEH-2050 manufactured by Unitika Co., Ltd.). , a polyester resin was prepared.
このポリエステル樹脂を射出成形し、得られた予備成形
体の口部を実施例1と同様にして170℃で140秒間
加熱し、結晶化を行った。次いて二軸延伸ブロー成形し
て、厚さ約0.35mmのボトルを成形した(実施例2
)。This polyester resin was injection molded, and the mouth part of the obtained preform was heated at 170° C. for 140 seconds in the same manner as in Example 1 to effect crystallization. Next, a bottle with a thickness of about 0.35 mm was formed by biaxial stretch blow molding (Example 2
).
比較として、市販のポリスチレン製着色ボトル(厚さ約
0.5mm )を用いたく比較例1)。For comparison, a commercially available polystyrene colored bottle (about 0.5 mm thick) was used in Comparative Example 1).
ポリエチレンテレフタレート樹脂(NEH−2050)
100重量部に対して、チタンホワイト2.5重量部を
添加して、ポリエステル樹脂を調製した。次いで、この
ポリエステル樹脂を用い、実施例2と同様にして射出成
形とブロー成形を行い、厚さ約0゜35mmのボトルを
成形した(比較例2)。Polyethylene terephthalate resin (NEH-2050)
A polyester resin was prepared by adding 2.5 parts by weight of titanium white to 100 parts by weight. Next, using this polyester resin, injection molding and blow molding were performed in the same manner as in Example 2 to form a bottle with a thickness of approximately 0.35 mm (Comparative Example 2).
ポリエチレンテレフタレート樹脂(NEH−2050”
)100重量部に対して、チタンホワイト5.0重量部
を添加して、ポリエステル樹脂を調製した。次いで、こ
のポリエステル樹脂を用い、実施例2と同様にして射出
成形とブロー成形を行い、厚さ約0゜35mmのボトル
を成形した(比較例3)。Polyethylene terephthalate resin (NEH-2050”
) 5.0 parts by weight of titanium white was added to 100 parts by weight to prepare a polyester resin. Next, using this polyester resin, injection molding and blow molding were performed in the same manner as in Example 2 to form a bottle with a thickness of approximately 0.35 mm (Comparative Example 3).
なふ、比較例1〜3においては、口部の結晶化は行わな
かった。In Comparative Examples 1 to 3, crystallization at the mouth was not performed.
上記実施例2及び比較例1〜3のボトルを用い、分光光
度計によって光透過度を測定した。Using the bottles of Example 2 and Comparative Examples 1 to 3, the light transmittance was measured using a spectrophotometer.
その結果を第4図に示す。実施例2のボトルは800n
m以下の波長をほとんど透過させず、優れた遮光性を示
した。The results are shown in FIG. The bottle of Example 2 is 800n
Almost no wavelengths of m or less were transmitted, showing excellent light-shielding properties.
以上説明した通り、本発明のボトルに光が入射すると、
ポリエステル層中の光反射性顔料の粒子が光を散乱し、
ポリエステル層中の光路が長くなる。そのため、散乱光
は光吸収性顔料の粒子によって吸収される確率が高くな
り、ボトルの遮光性が向上する。従って、内容物の賞味
期間を著しく長くすることができる。As explained above, when light enters the bottle of the present invention,
Particles of light-reflecting pigment in the polyester layer scatter light,
The optical path in the polyester layer becomes longer. Therefore, the probability that the scattered light will be absorbed by the light-absorbing pigment particles increases, and the light-shielding properties of the bottle improve. Therefore, the shelf life of the contents can be significantly extended.
また、ポリエステル層中に、さらに酸化鉄を添加すると
光吸収性顔料の発色が抑えられ、ボトルの色合いを良好
に保つことができる。Moreover, if iron oxide is further added to the polyester layer, color development of the light-absorbing pigment can be suppressed, and the color of the bottle can be kept good.
さらにまた、口部が結晶化によって白化されているので
、口部の耐熱性が著しく向上している。Furthermore, since the mouth part is whitened by crystallization, the heat resistance of the mouth part is significantly improved.
第1図は本発明の一実施例によるボトルを示す断面図で
あり、
第2図は第1図のボトルの口部の拡大断面図であり、
第3図は本発明のボトルの遮光作用を説明するためのポ
リエステル層の拡大断面図であり、第4図はボトルの遮
光性を分光光度計を用いて測定した結果を示すグラフで
ある。
1・・・口部
2・・・肩部
3・・・胴部
4・・・底部
5・・・サポートリング
7・・・ポリエステル層
9・・・耐熱性樹脂層
10・・・ボトル
20・・・光反射性顔料の粒子
30・・・光吸収性顔料の粒子FIG. 1 is a cross-sectional view showing a bottle according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the mouth of the bottle of FIG. 1, and FIG. FIG. 4 is an enlarged sectional view of the polyester layer for explanation, and FIG. 4 is a graph showing the results of measuring the light-shielding property of the bottle using a spectrophotometer. 1... Mouth 2... Shoulder 3... Body 4... Bottom 5... Support ring 7... Polyester layer 9... Heat resistant resin layer 10... Bottle 20. ...Light-reflecting pigment particles 30...Light-absorbing pigment particles
Claims (5)
ングと、前記サポートリングに続く肩部と、胴部及び底
部とを有する樹脂製のボトルにおいて、前記口部は熱処
理による結晶化によって白化されていて耐熱性を有し、
前記口部及び胴部を形成している樹脂はポリエステル1
00重量部に対して、光反射性顔料2.5〜6.0重量
部と、光吸収性顔料0.005〜0.015重量部とを
含有し、もって遮光性を有することを特徴とする耐熱遮
光性ボトル。(1) In a resin bottle having a mouth, a support ring provided at the lower end of the mouth, a shoulder following the support ring, a body and a bottom, the mouth is crystallized by heat treatment. It is whitened and has heat resistance,
The resin forming the mouth and body is polyester 1.
00 parts by weight, it contains 2.5 to 6.0 parts by weight of a light-reflecting pigment and 0.005 to 0.015 parts by weight of a light-absorbing pigment, and has a light-shielding property. Heat-resistant and light-shielding bottle.
記口部はポリエステル層と耐熱性樹脂層とからなる多層
構造を有することを特徴とする耐熱遮光性ボトル。(2) The heat-resistant and light-shielding bottle according to claim 1, wherein the mouth portion has a multilayer structure consisting of a polyester layer and a heat-resistant resin layer.
て、前記胴部を形成している樹脂は、さらに酸化鉄0.
05〜0.1重量部を含有することを特徴とする耐熱遮
光性ボトル。(3) In the heat-resistant and light-shielding bottle according to claim 1 or 2, the resin forming the body further includes 0% iron oxide.
A heat-resistant and light-shielding bottle containing 0.05 to 0.1 parts by weight.
トルにおいて、前記光反射性顔料はチタンホワイトであ
ることを特徴とする耐熱遮光性ボトル。(4) The heat-resistant and light-shielding bottle according to any one of claims 1 to 3, wherein the light-reflecting pigment is titanium white.
層ボトルにおいて、前記光吸収性顔料はカーボンブラッ
クであることを特徴とする耐熱遮光性ボトル。(5) The heat-resistant and light-shielding multilayer bottle according to any one of claims 1 to 4, wherein the light-absorbing pigment is carbon black.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29948490A JP3159387B2 (en) | 1990-11-05 | 1990-11-05 | Heat-resistant light-shielding bottle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29948490A JP3159387B2 (en) | 1990-11-05 | 1990-11-05 | Heat-resistant light-shielding bottle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04173134A true JPH04173134A (en) | 1992-06-19 |
JP3159387B2 JP3159387B2 (en) | 2001-04-23 |
Family
ID=17873171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29948490A Expired - Fee Related JP3159387B2 (en) | 1990-11-05 | 1990-11-05 | Heat-resistant light-shielding bottle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3159387B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999061245A1 (en) * | 1998-05-22 | 1999-12-02 | Tetra Laval Holdings & Finance S.A. | A packaging material and packages produced from the material for light-sensitive products |
JP2006082855A (en) * | 2004-09-17 | 2006-03-30 | Dainippon Printing Co Ltd | Synthetic resin-made container |
JP2006117269A (en) * | 2004-10-20 | 2006-05-11 | Dainippon Printing Co Ltd | Synthetic resin-made container |
US7189777B2 (en) | 2003-06-09 | 2007-03-13 | Eastman Chemical Company | Compositions and method for improving reheat rate of PET using activated carbon |
US7544405B2 (en) | 2004-04-15 | 2009-06-09 | Tergal Industries | Packaging shaped articles, e.g., opaque bottles, and process for the manufacture thereof |
EP2151472A1 (en) | 2008-07-28 | 2010-02-10 | Sociedad Anonima Minera Catalano-Aragonesa (Samca) | Resin composition for food containers |
US11834226B2 (en) | 2007-04-19 | 2023-12-05 | 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 |
US11890784B2 (en) | 2007-04-19 | 2024-02-06 | Anheus Er-Busch 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 |
-
1990
- 1990-11-05 JP JP29948490A patent/JP3159387B2/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999061245A1 (en) * | 1998-05-22 | 1999-12-02 | Tetra Laval Holdings & Finance S.A. | A packaging material and packages produced from the material for light-sensitive products |
CN1110409C (en) * | 1998-05-22 | 2003-06-04 | 利乐拉瓦尔集团及财务有限公司 | Packaging meterial and packages produced from material for light sensitive product |
KR100663596B1 (en) * | 1998-05-22 | 2007-01-02 | 테트라 라발 홀딩스 앤드 피낭스 소시에떼아노님 | A packaging material and packages produced from the material for light-sensitive products |
US7189777B2 (en) | 2003-06-09 | 2007-03-13 | Eastman Chemical Company | Compositions and method for improving reheat rate of PET using activated carbon |
US7544405B2 (en) | 2004-04-15 | 2009-06-09 | Tergal Industries | Packaging shaped articles, e.g., opaque bottles, and process for the manufacture thereof |
JP2006082855A (en) * | 2004-09-17 | 2006-03-30 | Dainippon Printing Co Ltd | Synthetic resin-made container |
JP2006117269A (en) * | 2004-10-20 | 2006-05-11 | Dainippon Printing Co Ltd | Synthetic resin-made container |
US11834226B2 (en) | 2007-04-19 | 2023-12-05 | 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 |
US11890784B2 (en) | 2007-04-19 | 2024-02-06 | Anheus Er-Busch 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 |
EP2151472A1 (en) | 2008-07-28 | 2010-02-10 | Sociedad Anonima Minera Catalano-Aragonesa (Samca) | Resin composition for food containers |
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