JPS5625421A - Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process - Google Patents

Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process

Info

Publication number
JPS5625421A
JPS5625421A JP10156179A JP10156179A JPS5625421A JP S5625421 A JPS5625421 A JP S5625421A JP 10156179 A JP10156179 A JP 10156179A JP 10156179 A JP10156179 A JP 10156179A JP S5625421 A JPS5625421 A JP S5625421A
Authority
JP
Japan
Prior art keywords
bottom wall
bleached
polyester resin
saturated polyester
bleached part
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.)
Pending
Application number
JP10156179A
Other languages
Japanese (ja)
Inventor
Yoshiaki Hayashi
Masahito Kondo
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
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 filed Critical Yoshino Kogyosho Co Ltd
Priority to JP10156179A priority Critical patent/JPS5625421A/en
Publication of JPS5625421A publication Critical patent/JPS5625421A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To make a bleached part hard to see with the action of light by a method wherein the bleached part produced in forming by the double-axis drawing blow forming of a cold parison is matched with a part to which a polyhedral concavo- convex cut pattern is given. CONSTITUTION:When a bottle made of saturated polyester resin is formed from a cold parison 1 by a biaxial orientation blow forming method, a bleached part is liable to be produced around the trace of a gate. For a countermeasure thereto, a polyhedral concavo-convex cut pattern 6 or the like is provided on the inside of a cavity around the trace 5 of a gate in the center of a bottom wall 4 and thereby the parison to which the biaxial orientation blow forming is applied is pressed. By this, the cut pattern or the like, being reverse to the above pattern, is given on to the outer surface of the bottom wall of the bottle, whereby the bleached part is made to be hard to see and the value of the bottle as a commodity is relieved from being damaged.
JP10156179A 1979-08-08 1979-08-08 Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process Pending JPS5625421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10156179A JPS5625421A (en) 1979-08-08 1979-08-08 Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10156179A JPS5625421A (en) 1979-08-08 1979-08-08 Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process

Publications (1)

Publication Number Publication Date
JPS5625421A true JPS5625421A (en) 1981-03-11

Family

ID=14303819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10156179A Pending JPS5625421A (en) 1979-08-08 1979-08-08 Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process

Country Status (1)

Country Link
JP (1) JPS5625421A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52859A (en) * 1975-06-16 1977-01-06 Owens Illinois Inc Container and method and device for producing same
JPS53149264A (en) * 1977-06-01 1978-12-26 Yoshino Kogyosho Co Ltd Apparatus for making polyester bottle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52859A (en) * 1975-06-16 1977-01-06 Owens Illinois Inc Container and method and device for producing same
JPS53149264A (en) * 1977-06-01 1978-12-26 Yoshino Kogyosho Co Ltd Apparatus for making polyester bottle

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