CA2455873A1 - Method for producing bottle-shaped container mainly made of polyethylene terephthalate resin - Google Patents

Method for producing bottle-shaped container mainly made of polyethylene terephthalate resin Download PDF

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Publication number
CA2455873A1
CA2455873A1 CA002455873A CA2455873A CA2455873A1 CA 2455873 A1 CA2455873 A1 CA 2455873A1 CA 002455873 A CA002455873 A CA 002455873A CA 2455873 A CA2455873 A CA 2455873A CA 2455873 A1 CA2455873 A1 CA 2455873A1
Authority
CA
Canada
Prior art keywords
high pressure
blow
intermediate molded
polyethylene terephthalate
formed product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002455873A
Other languages
French (fr)
Other versions
CA2455873C (en
Inventor
Hiromi Yaguchi
Tomohiko Ishizuka
Daisuke Uesugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co., Ltd.
Hiromi Yaguchi
Tomohiko Ishizuka
Daisuke Uesugi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Kogyosho Co., Ltd., Hiromi Yaguchi, Tomohiko Ishizuka, Daisuke Uesugi filed Critical Yoshino Kogyosho Co., Ltd.
Publication of CA2455873A1 publication Critical patent/CA2455873A1/en
Application granted granted Critical
Publication of CA2455873C publication Critical patent/CA2455873C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • 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
    • B29C49/6418—Heating of preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C49/642—Heating of preforms and shrinking of the preform
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2049/7832—Blowing with two or more pressure levels
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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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides 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
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0017—Heat stable
    • 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
    • B29K2995/0065—Permeability to gases
    • B29K2995/0067—Permeability to gases non-permeable
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/90—Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof
    • Y10S264/905—Direct application of fluid pressure differential to shape, reshape, i.e. distort, or sustain an article or preform and heat-setting, i.e. crystallizing of stretched or molecularly oriented portion thereof having plural, distinct differential fluid pressure shaping steps
    • Y10S264/906—And heat-shrinking outside of mold including subsequent re-expanding of shrunken article using differential fluid pressure

Abstract

A method of manufacturing a container or a bottle having a heat resistance a nd an excellent shapability and formed mainly of polyethylene terephthalate resin, comprising the steps of, using a primary metal mold, forming, by primary biaxial stretching blow, a preform formed mainly of polyethylene terephthalate resin to form a primary intermediate formed product, heating t he primary intermediate formed product to form a secondary intermediate formed product by thermally contracting the primary intermediate formed product, forming the secondary intermediate formed product by a secondary blow by usi ng a secondary metal mold, and, in the secondary blow forming, the fluid is further blown into the formed product and circulated after fluid is blown in to the secondary intermediate formed product and expanded to cool the formed product.

Claims (4)

1. A method for producing a bottle-shaped container mainly made of polyethylene terephthalate, comprising the steps of:
first biaxially-oriented blow-molding a preform mainly made of polyethylene terephthalate in a first metal mold, to form a primary intermediate molded article, causing thermal contraction of the primary intermediate molded aritcle by heating the primary intermediate molded article, to form a secondary intermediate molded article, and second blow-molding the secondary intermediate molded article in a second metal mold, to form the bottle-shaped container, characterized in that in the second biaxially-oriented blow-molding step, fluid is blown into the secondary intermediate molded article to expand the secondary intermediate article, and then further fluid is blown into and circulated in the expanded article to cool the expanded article.
2. The method according to claim 1, wherein fluid under high pressure is blown into the secondary intermediate molded article for a high pressure blow time of maintaining high pressure, to reduce the high pressure blow time.
3. The method according to claim 1 or 2, wherein said first biaxially-oriented blow-molding is realized by blowing fluid under high pressure into the preform for the high pressure blow period of maintaining high pressure, to reduce the high pressure blow time.
4. The method according to claim 2 or 3, wherein said high pressure blow time is a period of time suitable for providing a good shaping/shape-keeping property.
CA2455873A 2001-07-31 2002-07-31 Method for producing bottle-shaped container mainly made of polyethylene terephthalate resin Expired - Fee Related CA2455873C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001-231900 2001-07-31
JP2001231900A JP2003039538A (en) 2001-07-31 2001-07-31 Method for manufacturing bottle composed mainly of polyethylene terephthalate resin
PCT/JP2002/007785 WO2003011569A1 (en) 2001-07-31 2002-07-31 Method of manufacturing bottle formed mainly of polyethylene terephthalate resin

Publications (2)

Publication Number Publication Date
CA2455873A1 true CA2455873A1 (en) 2003-02-13
CA2455873C CA2455873C (en) 2010-09-21

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CA2455873A Expired - Fee Related CA2455873C (en) 2001-07-31 2002-07-31 Method for producing bottle-shaped container mainly made of polyethylene terephthalate resin

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US (1) US7485251B2 (en)
EP (1) EP1424187B1 (en)
JP (1) JP2003039538A (en)
KR (1) KR100884866B1 (en)
CN (1) CN1239311C (en)
CA (1) CA2455873C (en)
WO (1) WO2003011569A1 (en)

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CN102275293A (en) * 2005-06-29 2011-12-14 株式会社吉野工业所 Polyester resin container and molding process thereof
ITBO20060499A1 (en) * 2006-06-29 2007-12-30 Techne Technipack Engineering PROCEDURE AND APPARATUS TO DECREASE THE CYCLE TIMES IN MACHINES FOR THE PRODUCTION OF THERMOPLASTIC MANUFACTURED ARTICLES WITH THE BLOWING THERMOFORMING PROCESS
US20080230954A1 (en) * 2007-03-20 2008-09-25 Green Harvest Technologies, Llc Injection Stretch Blow Molded Polylactide Bottle and Process For Making Same
EP2366528A4 (en) * 2008-12-17 2016-06-08 Toyo Seikan Kaisha Ltd Method for producing synthetic resin container
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CN112810058A (en) * 2021-01-04 2021-05-18 上海川禾包装容器有限公司 Production process of IPET thickened container

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Publication number Publication date
KR20040020041A (en) 2004-03-06
WO2003011569A1 (en) 2003-02-13
CN1239311C (en) 2006-02-01
JP2003039538A (en) 2003-02-13
US7485251B2 (en) 2009-02-03
EP1424187A4 (en) 2007-11-14
CA2455873C (en) 2010-09-21
EP1424187B1 (en) 2012-06-13
EP1424187A1 (en) 2004-06-02
KR100884866B1 (en) 2009-02-23
CN1464833A (en) 2003-12-31
US20040173950A1 (en) 2004-09-09

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