JPS5742726A - Polyester film for shrink packaging - Google Patents
Polyester film for shrink packagingInfo
- Publication number
- JPS5742726A JPS5742726A JP11836480A JP11836480A JPS5742726A JP S5742726 A JPS5742726 A JP S5742726A JP 11836480 A JP11836480 A JP 11836480A JP 11836480 A JP11836480 A JP 11836480A JP S5742726 A JPS5742726 A JP S5742726A
- Authority
- JP
- Japan
- Prior art keywords
- copolyester
- stretching
- film
- surface temperature
- film surface
- 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
Links
Abstract
PURPOSE: To obtain titled transparent film exhibiting low-temperature shrinkability and high thermal shrink stress and having excellent heat-sealability, by biaxially stretching a copolyester comprising terephthalic acid, ethylene glycol and a specified component in a specified condition.
CONSTITUTION: In melt-extruding a composition consisting mainly of a copolyester comprising (A) terephthalic acid and (B) ethylene glycol and 1,4-cyclohexanedimethanol, said component B containing 10W40mol% 1,4-cyclohexanedimethanol, through a circular die, cooling the extrudate and biaxially stretching it by a usual method; said copolyester is stretched at a stretch ratio of 2W6 under such a condition that the film surface temperature in the stretching zone (Tf1) is within the range of formula I, wherein Tg is the second-order transition point of the copolyester determined by DTA and the film surface temperature after stretching has a negative temperature gradient given by formula II, wherein Tf2 is a film surface temperature at a point 4.5d (d is the diameter of the starting film) ahead of the point at which stretching is completed. Copolymerization of the above third component makes it possible to obtain titled film having low-temperature shrinkability and a high thermal-shrinking force and good sealability and being transparent without detriment to heat and oil resistance.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11836480A JPS5742726A (en) | 1980-08-29 | 1980-08-29 | Polyester film for shrink packaging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11836480A JPS5742726A (en) | 1980-08-29 | 1980-08-29 | Polyester film for shrink packaging |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5742726A true JPS5742726A (en) | 1982-03-10 |
JPH0134528B2 JPH0134528B2 (en) | 1989-07-19 |
Family
ID=14734870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11836480A Granted JPS5742726A (en) | 1980-08-29 | 1980-08-29 | Polyester film for shrink packaging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5742726A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159618A (en) * | 1981-03-27 | 1982-10-01 | Gunze Ltd | Highly shrinkable polyester film excellent in heat seal |
JPS5864958A (en) * | 1981-10-09 | 1983-04-18 | 大日本インキ化学工業株式会社 | Heat-shrinkable film and heat-shrinkable packing method for article using said heat-shrinkable film |
JPS5891538U (en) * | 1981-12-15 | 1983-06-21 | グンゼ株式会社 | Containers |
JPS60206839A (en) * | 1984-03-30 | 1985-10-18 | Okura Ind Co Ltd | Heat-shrinkable polyester film |
JPS60232948A (en) * | 1984-05-04 | 1985-11-19 | 大倉工業株式会社 | Heat-shrinkable polyester laminated film |
JPS6148112U (en) * | 1984-09-04 | 1986-03-31 | グンゼ株式会社 | Retort sterilizable glass bottle |
JPS6228226A (en) * | 1985-07-30 | 1987-02-06 | Okura Ind Co Ltd | Unidirectionally heat-shrinkable tubular film and manufacture thereof |
JPS6291555A (en) * | 1985-10-18 | 1987-04-27 | Toyobo Co Ltd | Heat-shrinkable polyester film |
JPS6295341A (en) * | 1985-10-22 | 1987-05-01 | Gunze Ltd | Polyester shrink label having improved low-temperature heat shrinkability |
JPS62121732A (en) * | 1985-07-31 | 1987-06-03 | Toyobo Co Ltd | Production of polyester tube |
JPS63152639A (en) * | 1986-08-04 | 1988-06-25 | Unitika Ltd | Polyester shrink film and production thereof |
US4814426A (en) * | 1986-07-18 | 1989-03-21 | Diafoil Company, Limited | Shrinkable polyester film for packaging |
US4983653A (en) * | 1986-11-12 | 1991-01-08 | Diafoil Company, Ltd. | Polyester shrinkable film containing benzotriazole |
US4985538A (en) * | 1986-11-12 | 1991-01-15 | Diafoil Company, Limited | Shrinkable polyester film |
US5069953A (en) * | 1990-05-17 | 1991-12-03 | Gunze Limited | Heat-shrinkable foamed composite film and process for preparation of same |
JPH05245930A (en) * | 1991-12-26 | 1993-09-24 | Sekisui Chem Co Ltd | Polyester heat-shrinkable film |
JPH08192464A (en) * | 1995-01-19 | 1996-07-30 | Kanebo Ltd | Polyester heat-shrinkable film |
US5627236A (en) * | 1993-05-04 | 1997-05-06 | E. I. Du Pont De Nemours And Company | Bonding resin and methods relating thereto |
US5672426A (en) * | 1994-06-20 | 1997-09-30 | Hoechst Celanese Corp | high barrier transparent films |
WO2003006229A1 (en) * | 2001-07-11 | 2003-01-23 | Toyo Boseki Kabushiki Kaisha | Heat-shrinkable polyester films and process for production thereof |
WO2003039841A1 (en) * | 2001-08-01 | 2003-05-15 | Toyo Boseki Kabushiki Kaisha | Heat shrinking polyester film roll |
JP2014055236A (en) * | 2012-09-12 | 2014-03-27 | Toyobo Co Ltd | Heat-shrinkable polyester film for book packaging |
-
1980
- 1980-08-29 JP JP11836480A patent/JPS5742726A/en active Granted
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159618A (en) * | 1981-03-27 | 1982-10-01 | Gunze Ltd | Highly shrinkable polyester film excellent in heat seal |
JPS5864958A (en) * | 1981-10-09 | 1983-04-18 | 大日本インキ化学工業株式会社 | Heat-shrinkable film and heat-shrinkable packing method for article using said heat-shrinkable film |
JPS5891538U (en) * | 1981-12-15 | 1983-06-21 | グンゼ株式会社 | Containers |
JPH0213303Y2 (en) * | 1981-12-15 | 1990-04-12 | ||
JPS60206839A (en) * | 1984-03-30 | 1985-10-18 | Okura Ind Co Ltd | Heat-shrinkable polyester film |
JPS637573B2 (en) * | 1984-03-30 | 1988-02-17 | Okura Industrial Co Ltd | |
JPH0150597B2 (en) * | 1984-05-04 | 1989-10-30 | Okura Industrial Co Ltd | |
JPS60232948A (en) * | 1984-05-04 | 1985-11-19 | 大倉工業株式会社 | Heat-shrinkable polyester laminated film |
JPS6148112U (en) * | 1984-09-04 | 1986-03-31 | グンゼ株式会社 | Retort sterilizable glass bottle |
JPS6228226A (en) * | 1985-07-30 | 1987-02-06 | Okura Ind Co Ltd | Unidirectionally heat-shrinkable tubular film and manufacture thereof |
JPH0455381B2 (en) * | 1985-07-30 | 1992-09-03 | Okura Industrial Co Ltd | |
JPS62121732A (en) * | 1985-07-31 | 1987-06-03 | Toyobo Co Ltd | Production of polyester tube |
JPS6291555A (en) * | 1985-10-18 | 1987-04-27 | Toyobo Co Ltd | Heat-shrinkable polyester film |
JPH0410854B2 (en) * | 1985-10-18 | 1992-02-26 | ||
JPS6295341A (en) * | 1985-10-22 | 1987-05-01 | Gunze Ltd | Polyester shrink label having improved low-temperature heat shrinkability |
US4814426A (en) * | 1986-07-18 | 1989-03-21 | Diafoil Company, Limited | Shrinkable polyester film for packaging |
JPS63152639A (en) * | 1986-08-04 | 1988-06-25 | Unitika Ltd | Polyester shrink film and production thereof |
US4983653A (en) * | 1986-11-12 | 1991-01-08 | Diafoil Company, Ltd. | Polyester shrinkable film containing benzotriazole |
US4985538A (en) * | 1986-11-12 | 1991-01-15 | Diafoil Company, Limited | Shrinkable polyester film |
US5069953A (en) * | 1990-05-17 | 1991-12-03 | Gunze Limited | Heat-shrinkable foamed composite film and process for preparation of same |
JPH05245930A (en) * | 1991-12-26 | 1993-09-24 | Sekisui Chem Co Ltd | Polyester heat-shrinkable film |
US5627236A (en) * | 1993-05-04 | 1997-05-06 | E. I. Du Pont De Nemours And Company | Bonding resin and methods relating thereto |
US5672426A (en) * | 1994-06-20 | 1997-09-30 | Hoechst Celanese Corp | high barrier transparent films |
JPH08192464A (en) * | 1995-01-19 | 1996-07-30 | Kanebo Ltd | Polyester heat-shrinkable film |
WO2003006229A1 (en) * | 2001-07-11 | 2003-01-23 | Toyo Boseki Kabushiki Kaisha | Heat-shrinkable polyester films and process for production thereof |
AU2002318640B2 (en) * | 2001-07-11 | 2008-01-17 | Toyo Boseki Kabushiki Kaisha | Heat-shrinkable polyester films and process for production thereof |
US7749584B2 (en) | 2001-07-11 | 2010-07-06 | Toyo Boseki Kabushiki Kaisha | Heat-shrinkable polyester films |
WO2003039841A1 (en) * | 2001-08-01 | 2003-05-15 | Toyo Boseki Kabushiki Kaisha | Heat shrinking polyester film roll |
JP2014055236A (en) * | 2012-09-12 | 2014-03-27 | Toyobo Co Ltd | Heat-shrinkable polyester film for book packaging |
Also Published As
Publication number | Publication date |
---|---|
JPH0134528B2 (en) | 1989-07-19 |
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