JPS57187226A - Molding method of plastic bottle - Google Patents

Molding method of plastic bottle

Info

Publication number
JPS57187226A
JPS57187226A JP56071567A JP7156781A JPS57187226A JP S57187226 A JPS57187226 A JP S57187226A JP 56071567 A JP56071567 A JP 56071567A JP 7156781 A JP7156781 A JP 7156781A JP S57187226 A JPS57187226 A JP S57187226A
Authority
JP
Japan
Prior art keywords
bottle
stretching
parison
blowing
mold
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
JP56071567A
Other languages
Japanese (ja)
Other versions
JPH0156891B2 (en
Inventor
Yoichi Otsu
Kohei Sugano
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.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP56071567A priority Critical patent/JPS57187226A/en
Publication of JPS57187226A publication Critical patent/JPS57187226A/en
Publication of JPH0156891B2 publication Critical patent/JPH0156891B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6472—Heating or cooling preforms, parisons or blown articles in several stages
    • 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
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6604—Thermal conditioning of the blown article
    • B29C49/6605—Heating the article, e.g. for hot fill

Abstract

PURPOSE:To obtain said bottle having excellent heat stability and unevenness of sharp edges on its outer periphery, by molding the parison which is heated to the temperature suitable for stretching at the two stages using the primary mold forming an intermediate bottle and the secondary mold forming a finished bottle. CONSTITUTION:A parison P heated at the temperature suitable for stretching (e.g. in case of polyethyleneterephthalat, 80-150 deg.C etc.) is set in a primary mold 1 and a blowing nozzle 2 is attached to the opening part of said parison. After pushing a stretching rod 3 in the parison and stretching it longitudinally or performing longitudinal stretching by blowing pressurized fluid (in absolute pressure 10-30kg/cm<2>) from the blowing port 21 and expanding until it contacts to the mold face it is kept for a predetermined time and heat-treated, and the pressure is reduced, then an intermediate bottle is taken out. Next, said intermediate bottle is set in a secondary mold 4, formed by blowing pressurized fluid (15-30kg/cm<2>) into said bottle and a finally shaped bottle having unevenness of shape edges is obtained.
JP56071567A 1981-05-13 1981-05-13 Molding method of plastic bottle Granted JPS57187226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56071567A JPS57187226A (en) 1981-05-13 1981-05-13 Molding method of plastic bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56071567A JPS57187226A (en) 1981-05-13 1981-05-13 Molding method of plastic bottle

Publications (2)

Publication Number Publication Date
JPS57187226A true JPS57187226A (en) 1982-11-17
JPH0156891B2 JPH0156891B2 (en) 1989-12-01

Family

ID=13464408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56071567A Granted JPS57187226A (en) 1981-05-13 1981-05-13 Molding method of plastic bottle

Country Status (1)

Country Link
JP (1) JPS57187226A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874325A (en) * 1981-10-30 1983-05-04 Teijin Ltd Manufacture of polyester vessel
US5248533A (en) * 1984-02-15 1993-09-28 Yoshino Kogyosho Co., Ltd. Biaxially oriented polyethylene terephthalate resin bottle-shaped container
US5445784A (en) * 1984-02-15 1995-08-29 Yoshino Kogyosho Co., Ltd. Method of blow-molding biaxially-oriented polyethylene terephthalate resin bottle-shaped container
US5562960A (en) * 1984-02-15 1996-10-08 Yoshino Kogyosho Co., Ltd. Double-blown PET bottle shaped container having essentially no residual stress and superior heat resistance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3808204B2 (en) * 1997-04-23 2006-08-09 日精エー・エス・ビー機械株式会社 Non-heat resistant container with reduced acetaldehyde and molding method thereof
JP5256615B2 (en) * 2006-01-24 2013-08-07 三菱瓦斯化学株式会社 Multi-layer bottle manufacturing method
RU2417888C2 (en) * 2006-01-24 2011-05-10 Мицубиси Гэс Кемикал Компани, Инк. Method of filling multilayer bottle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998471A (en) * 1972-11-18 1974-09-18
JPS50139163A (en) * 1974-04-16 1975-11-06
JPS5477672A (en) * 1977-12-02 1979-06-21 Yoshino Kogyosho Co Ltd Method of making bottel of thermoset saturated polyester resin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4998471A (en) * 1972-11-18 1974-09-18
JPS50139163A (en) * 1974-04-16 1975-11-06
JPS5477672A (en) * 1977-12-02 1979-06-21 Yoshino Kogyosho Co Ltd Method of making bottel of thermoset saturated polyester resin

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874325A (en) * 1981-10-30 1983-05-04 Teijin Ltd Manufacture of polyester vessel
US5248533A (en) * 1984-02-15 1993-09-28 Yoshino Kogyosho Co., Ltd. Biaxially oriented polyethylene terephthalate resin bottle-shaped container
US5445784A (en) * 1984-02-15 1995-08-29 Yoshino Kogyosho Co., Ltd. Method of blow-molding biaxially-oriented polyethylene terephthalate resin bottle-shaped container
US5510079A (en) * 1984-02-15 1996-04-23 Yoshino Kogyosho Co., Ltd. Method of blow-molding biaxially oriented polyethylene terephthalate resin bottle-shaped container
US5562960A (en) * 1984-02-15 1996-10-08 Yoshino Kogyosho Co., Ltd. Double-blown PET bottle shaped container having essentially no residual stress and superior heat resistance
US5747130A (en) * 1984-02-15 1998-05-05 Yoshino Kogyosho Co., Ltd. Intermediate product capable of being formed into a biaxially oriented polyethylene terephthalate resin bottle-shaped container and method of blow-molding the same
US5928742A (en) * 1984-02-15 1999-07-27 Yoshino Kogyosho Co., Ltd. Double-blown pet bottle shaped container having essentially no residual stress and superior heat resistance

Also Published As

Publication number Publication date
JPH0156891B2 (en) 1989-12-01

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