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
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.
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)
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 |
-
1994
- 1994-11-19 TW TW83110763A patent/TW265299B/en active
Cited By (1)
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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