TW265299B - Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG) - Google Patents

Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG)

Info

Publication number
TW265299B
TW265299B TW83110763A TW83110763A TW265299B TW 265299 B TW265299 B TW 265299B TW 83110763 A TW83110763 A TW 83110763A TW 83110763 A TW83110763 A TW 83110763A TW 265299 B TW265299 B TW 265299B
Authority
TW
Taiwan
Prior art keywords
petg
polyethylene glycol
glycol terephthalate
cooling
tubular
Prior art date
Application number
TW83110763A
Other languages
Chinese (zh)
Inventor
Diing-Feng Yan
Original Assignee
Diing-Feng Yan
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 Diing-Feng Yan filed Critical Diing-Feng Yan
Priority to TW83110763A priority Critical patent/TW265299B/en
Application granted granted Critical
Publication of TW265299B publication Critical patent/TW265299B/en

Links

Abstract

A process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG), which is a process of producing single layer tubular membrane of polyethylene glycol terephthalate (PETG), which comprises melting the polyethylene glycol terephthalate (PETG) material in an extruder into flowable fluid, elongating the molten material from the outlet mold in a downward direction due to the weight of the material, undergoing blowing from the center hole installed on the outlet mold so that the unmolded polyethylene glycol terephthalate (PETG) achieves the width of initial requirement which is the status of primary tubular status, cooling the primary tubular membrane by an air ring followed by cooling by circulating water ring to form semi-solid body, elongating the body by circulating cooling water followed by calendering, moving the body into a hot water trough at 85 deg.C~95 deg.C to undergo softening followed by blowing into the required specification in which ice water cooling formation ring at 3 deg.C~15 deg.C was used to undergo instantaneous cooling orientation, using the rotation speed of bilateral calender to control the ratio of longitudinal shrinkage (%), finally undergoing tubular winding.
TW83110763A 1994-11-19 1994-11-19 Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG) TW265299B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW83110763A TW265299B (en) 1994-11-19 1994-11-19 Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW83110763A TW265299B (en) 1994-11-19 1994-11-19 Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG)

Publications (1)

Publication Number Publication Date
TW265299B true TW265299B (en) 1995-12-11

Family

ID=51402101

Family Applications (1)

Application Number Title Priority Date Filing Date
TW83110763A TW265299B (en) 1994-11-19 1994-11-19 Process of producing tubular shrinkage membrane of polyethylene glycol terephthalate (PETG)

Country Status (1)

Country Link
TW (1) TW265299B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI695797B (en) * 2017-11-17 2020-06-11 洪子欽 Device and method for blowing and pulling packaging film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI695797B (en) * 2017-11-17 2020-06-11 洪子欽 Device and method for blowing and pulling packaging film

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