CN1223196A - Method for forming polyethylene glycol terephthalate (PET) thermal-resistant bottle - Google Patents
Method for forming polyethylene glycol terephthalate (PET) thermal-resistant bottle Download PDFInfo
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- CN1223196A CN1223196A CN 97120948 CN97120948A CN1223196A CN 1223196 A CN1223196 A CN 1223196A CN 97120948 CN97120948 CN 97120948 CN 97120948 A CN97120948 A CN 97120948A CN 1223196 A CN1223196 A CN 1223196A
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- pet
- bottle
- blow
- heat
- production method
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The production method of polyethylene glycol terephthalate (PFT) heat-resisting bottle includes the following steps: 1. drawing and blow-molding at high temp.; and 2. after the drawing and blow-molding steps are completed, the cooling medium is instantly injected to cool the internal surface of the bottle. Said invention implements the one-step heat-treatment process of PET heat-resisting bottle, has no need of adding heat-treatment working station so as to reduce the production procedures, and its product is completely in accordance with requirements for food production.
Description
The present invention relates to a kind of production method of heat-resisting beverage bottle.
The can at a lower temperature of common stretch-blow PETG (PET) bottle, this is because the heat deflection temperature of PET is 70 ℃, the degree of crystallinity of common PET bottle is the highest to be about 25%, and many food, beverage will be at hot filling under 85～90C, prevent food variable color and oxidation in storage life to do sterilization, therefore, manage to improve the heat resistance of PET bottle.Prior art thermal finalization (or thermal annealing) is handled and is applied to the PET bottle, promptly to handling certain hour under a certain proper temperature that is being higher than vitrification point through the PET of biaxial orientation bottle, it is that 40～50% PET bottle can bear the temperature up to 95C that degree of crystallinity is handled in thermal finalization, can be used for pasteurization and handle.But technology can not be finalized the design at the stretch-blow station of shape base to reheatstretch blow, increase by an independent heat setting station.
The objective of the invention is to be implemented in the method that the blowing stretching process is just directly heat-treated, to reduce operation.
The production method of the heat-resisting bottle of PET of the present invention comprises the steps: 1) carry out stretch-blow at high temperature; 2) behind stretch-blow, directly inject cooling medium immediately, cooling bottle inner surface.
Be band pressure air and water composition mixture according to the used cooling medium of above-mentioned production method, and feed and circulation by hollow stretching bar.
For making whorl of bottleneck indeformable when the stretch-blow, the roasting baking of heating bottleneck reaches 60% above degree of crystallinity, and plug was fixed in internal diameter of the bottleneck screwed on.
Through facts have proved: the bottleneck material reaches 60% above degree of crystallinity, is white in color, and bottle reaches 30～40% degree of crystallinity, still is transparent, but bottle heatproof 95C meets the needs of food production fully.
Accompanying drawing is a process schematic representation of the present invention.
Embodiment of the invention condition be bottle base (2) at 135C in die cavity (3), carry out stretch-blow by hollow stretching bar (1), adopt electric furnace heating wire heating bottleneck, reach 60% above degree of crystallinity, feed 8Kg behind the stretch-blow immediately and cool off with the water and air of upward pressure.
Claims (3)
1, the production method of the heat-resisting bottle of a kind of PETG (PET) is to carry out stretch-blow at high temperature, is characterised in that it directly injects cooling medium immediately behind stretch-blow, cooling bottle inner surface.
2,, it is characterized in that used cooling medium is band pressure air and water composition mixture, and feed and circulation by hollow stretching bar according to the PET production method of claim 1.
According to the PET bottle production method of claim 1, it is characterized in that in stretch the blowing position that 3, the roasting baking of heating bottleneck reaches 60% above degree of crystallinity, plug was fixing in internal diameter of the bottleneck screwed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97120948 CN1223196A (en) | 1997-11-14 | 1997-11-14 | Method for forming polyethylene glycol terephthalate (PET) thermal-resistant bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97120948 CN1223196A (en) | 1997-11-14 | 1997-11-14 | Method for forming polyethylene glycol terephthalate (PET) thermal-resistant bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1223196A true CN1223196A (en) | 1999-07-21 |
Family
ID=5176087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97120948 Pending CN1223196A (en) | 1997-11-14 | 1997-11-14 | Method for forming polyethylene glycol terephthalate (PET) thermal-resistant bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1223196A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004096525A1 (en) * | 2003-04-25 | 2004-11-11 | Jinhuo Yuan | Method of manufacturing heat-resisting polyester bottles and the products therefrom |
| CN100355631C (en) * | 2003-04-15 | 2007-12-19 | 雀巢水业管理技术公司 | Thin-walled container for products |
| CN101821080A (en) * | 2007-09-10 | 2010-09-01 | 西德尔公司 | Process for forming containers, which comprises step of flushing the internal volume of the container of variable duration over at least one given compensation time |
| CN104344585A (en) * | 2013-08-02 | 2015-02-11 | 克朗斯股份有限公司 | Method for cooling components of a blow-moulding machine and/or a beverage filling machine |
| CN105172107A (en) * | 2015-10-08 | 2015-12-23 | 湖南科伦制药有限公司 | Bottle blowing machine and bottle blowing method |
-
1997
- 1997-11-14 CN CN 97120948 patent/CN1223196A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355631C (en) * | 2003-04-15 | 2007-12-19 | 雀巢水业管理技术公司 | Thin-walled container for products |
| WO2004096525A1 (en) * | 2003-04-25 | 2004-11-11 | Jinhuo Yuan | Method of manufacturing heat-resisting polyester bottles and the products therefrom |
| CN101821080A (en) * | 2007-09-10 | 2010-09-01 | 西德尔公司 | Process for forming containers, which comprises step of flushing the internal volume of the container of variable duration over at least one given compensation time |
| CN101821080B (en) * | 2007-09-10 | 2014-07-02 | 西德尔公司 | Process for forming containers, which comprises step of flushing the internal volume of the container of variable duration over at least one given compensation time |
| CN104344585A (en) * | 2013-08-02 | 2015-02-11 | 克朗斯股份有限公司 | Method for cooling components of a blow-moulding machine and/or a beverage filling machine |
| CN105172107A (en) * | 2015-10-08 | 2015-12-23 | 湖南科伦制药有限公司 | Bottle blowing machine and bottle blowing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |