CN110435127A - High temperature resistant PET protection film production technology - Google Patents
High temperature resistant PET protection film production technology Download PDFInfo
- Publication number
- CN110435127A CN110435127A CN201910744195.3A CN201910744195A CN110435127A CN 110435127 A CN110435127 A CN 110435127A CN 201910744195 A CN201910744195 A CN 201910744195A CN 110435127 A CN110435127 A CN 110435127A
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- CN
- China
- Prior art keywords
- protection film
- pet protection
- high temperature
- production technology
- temperature
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/02—Thermal shrinking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Abstract
The invention discloses a kind of high temperature resistant PET protection film production technologies, include the following steps: preheating step, and preheating temperature range is 140 DEG C -160 DEG C, the micro- contraction of PET protection film；High heat baking step, high temperature range are 180 DEG C -200 DEG C, and PET protection film carries out rapid desufflation；High-temperature shaping step flattens the position that the PET protection film after preheating, high-temperature baking becomes fold；PET protection film is down to room temperature by cooling step.The PET protection film of the application can replace PEN film, and lateral hot contraction ratio is small and heat-resist.
Description
Technical field
The present invention relates to a kind of high temperature resistant PET protection film production technologies.
Background technique
Polyethylene naphthalate (PEN) is commercialized polyester new varieties the 1990s.As PET, PEN
Film, fiber, hollow container and sheet material can be processed into.Due to its excellent combination property, there is wide potential market, thus draws
Play the concern of Polyester industry.At present the enterprise of worldwide production PEN only have Di Ren group, Japan's spinning, Mitsubishi Chemical, clock spin,
UniPET, M&G (, KOSA, the polyester relevant enterprise few in number such as Du Pont and Kolon.
In recent years, PEN film is mainly used in base band, flexible printed circuit board, the capacitor films, F class B insulation film of tape
Etc., and the purposes of PEN new film is still in continually developing.With the development of mobile phone and small-sized carrying machinery, to film
The demand of capacitor also constantly increases.Although will be a rising neck currently, though this respect market scale is small
Domain.In addition, also having for automobile sensor and insulation spare and accessory parts aspect certain since the heat resistance of pen film, film strength are preferable
Development prospect.
Existing market PET protection film is mainly used for common packages printing, and product protection, 150 ° of maximum temperature once make
With being promoted the highest of existing PET protection film by temperature then can be tight to baking at a temperature of 180 ° or hot pressing, existing PET protection film
It deforms again, cross-direction shrinkage ratio TD:0.44%；Longitudinal contraction ratio is MD:1.68%.How by the cross-direction shrinkage ratio of PET protection film
It reduces, so that the heat resistance that PET protection film has PEN the same is to need to ask at present to solve the problems, such as.
Summary of the invention
To overcome disadvantages mentioned above, the purpose of the present invention is to provide a kind of cross-direction shrinkage ratios, heat-resisting for reducing PET protection film
The good high temperature resistant PET protection film production technology of property.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of high temperature resistant PET protection film production technology,
Include the following steps: preheating step, preheating temperature range is 140 DEG C -160 DEG C, the micro- contraction of PET protection film；High-temperature baking step
Suddenly, high temperature range is 180 DEG C -200 DEG C, and PET protection film carries out rapid desufflation；High-temperature shaping step, will be by preheating, high temperature
PET protection film after baking becomes the position leveling of fold；PET protection film is down to room temperature by cooling step.
The beneficial effect of high temperature resistant PET protection film production technology of the present invention is the process that the application is produced in PET protection film
In, first PET protection film is preheated, then high-temperature baking, it is in process of production, micro- by successively having been carried out to PET protection film
It shrinks and rapid desufflation, then is flattened, cooled down, so that the cross of the obtained PET protection film of the technique in use
It is reduced to shrinking percentage TD, the heat resistance in use process is good, and the high temperature PET protective film which obtains can be answered widely
Using the baking of high temperature height or hot pressing field reduces cost instead of PEN protective film, also can solve and makes because shrinkage ratio is excessive
At product structure variation, improve yield.
Preferably, longitudinal both sides of PET protection film are cut, guarantee the effective of PET protection film by slitting step
Preferably, the preheating step, high heat baking step, high-temperature shaping step, cooling step, in slitting step
For PET protection film with the operation of identical conduct speed, the conduct speed is 18-22m/min.Directly in original PET flowing water
Increase on line, then under the premise of the immovable original PET protection film speed of service, be additionally arranged preheating step, high heat baking step,
High-temperature shaping step, cooling step, slitting step, reduce the cost for opening assembly line again.It is passed sequentially through with the conduct speed
Preheating step, high heat baking step, high-temperature shaping step, cooling step, slitting step are able to achieve preferably micro- shrink, quickly
Shrink, be formed etc..
Preferably, in preheating step, the micro- shrinking percentage control of the transverse direction of the PET protection film subject to 0.34% or so ±
0.02%.
Preferably, the high temperature oven in the high heat baking step uses a section high temperature oven, or is dried using more piece high temperature
Case, the length of the section high temperature oven are equal to the length of more piece high temperature oven.It is selected with specific reference to actual demand.
Preferably, the heating roller of 140-160 degree is used in the high-temperature shaping step.The heating roller energy of the temperature range
By the PET protection film leveling after high-temperature baking.
Preferably, the temperature of PET protection film is down to 30 DEG C of room temperature temperature using 48h is stood in the cooling step
Below.In favor of the progress of slitting.
Preferably, in the slitting step, longitudinal both sides of PET protection film are cut into 20-30mm.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
Embodiment one
A kind of high temperature resistant PET protection film production technology, by taking transverse width is the PET protection film of 1040mm as an example, with
The conduct speed of 20m/min is run, and is had already passed through with the speed of service: preheating step, the micro- contraction of PET protection film；190 DEG C of height
Warm baking procedure, PET protection film carry out rapid desufflation；High-temperature shaping step protects the PET after preheating, high-temperature baking
Film becomes the position leveling of fold；PET protection film is down to room temperature by cooling step；It further include slitting step, slitting step is by PET
Longitudinal both sides of protective film are cut.
High temperature oven in the high heat baking step uses a section high temperature oven, or uses more piece high temperature oven, described
The length of one section high temperature oven is equal to the length of more piece high temperature oven.Using more piece high temperature oven, every section in the present embodiment
The long 3m of high temperature oven, 7 section altogether, with the speed conduct of 20m/min.150 DEG C of heating roller is used in the high-temperature shaping step.
Using 44h is stood in the cooling step, the temperature of PET protection film is down to 30 DEG C of room temperature temperature or less.The slitting step
In rapid, longitudinal both sides of PET protection film are cut into 20-30mm, are depended on the circumstances.
In the present embodiment, the micro- shrinking percentage of the transverse direction of the PET protection film is 0.34%, after the high temperature oven of 7 section 3m,
Its lateral percent thermal shrinkage is followed successively by 0.297%, 0.254%, 0.211%, 0.168%, 0.125%, 0.082%, 0.039%,
The TD percent thermal shrinkage of PET protection film after the last one high temperature oven is 0.039%.
And after above-mentioned technique, the thickness of PET protection film is constant, is still 0.05mm, error is within 10%.Linearly
Degree is still≤1.2%, and surface hardness >=4H can continue 30 minutes in high temperature resistant environment 180 degree, and percent thermal shrinkage TD≤
0.041%；Surface resistance is 300-500.
Embodiment two,
The present embodiment is consistent with the technical process of embodiment, but parameter is inconsistent, specifically: the temperature of preheating step is
140 DEG C, PET protection film also will do it micro- contraction；High heat baking step, high temperature range be 180 DEG C, PET protection film also still into
Row rapid desufflation；Wherein, the preheating step, high heat baking step, high-temperature shaping step, cooling step, in slitting step
PET protection film is with the speed conduct of 18m/min.140 DEG C of heating roller is used in the high-temperature shaping step.The cooling step
Using 40h is stood in rapid, the temperature of PET protection film is down to 30 DEG C of room temperature temperature or less.In the present embodiment, the PET is protected
The micro- shrinking percentage of the transverse direction of cuticula is 0.37%, after the high temperature oven of 7 section 3m, lateral percent thermal shrinkage is followed successively by 0.323%,
0.276%, 0.229%, 0.182%, 0.135%, 0.088%, 0.041%, the PET protection film after the last one high temperature oven
TD percent thermal shrinkage be 0.041%.
Embodiment three,
The present embodiment is consistent with the technical process of embodiment, but parameter is inconsistent, specifically: the temperature of preheating step is
160 DEG C, PET protection film also will do it micro- contraction；High heat baking step, high temperature range be 200 DEG C, PET protection film also still into
Row rapid desufflation；Wherein, the preheating step, high heat baking step, high-temperature shaping step, cooling step, in slitting step
PET protection film is with the speed conduct of 22m/min.160 DEG C of heating roller is used in the high-temperature shaping step.The cooling step
Using 48h is stood in rapid, the temperature of PET protection film is down to 30 DEG C of room temperature temperature or less.In the present embodiment, the PET is protected
The micro- shrinking percentage of the transverse direction of cuticula is 0.31%, after the high temperature oven of 7 section 3m, lateral percent thermal shrinkage is followed successively by 0.271%,
0.232%, 0.193%, 0.154%, 0.115%, 0.076%, 0.039%, the PET protection film after the last one high temperature oven
TD percent thermal shrinkage be 0.039%.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.
Claims (8)
1. a kind of high temperature resistant PET protection film production technology, which comprises the steps of:
Preheating step, preheating temperature range are 140 DEG C -160 DEG C, the micro- contraction of PET protection film；
High heat baking step, high temperature range are 180 DEG C -200 DEG C, and PET protection film carries out rapid desufflation；
High-temperature shaping step flattens the position that the PET protection film after preheating, high-temperature baking becomes fold；
PET protection film is down to room temperature by cooling step.
2. high temperature resistant PET protection film production technology according to claim 1, it is characterised in that: after cooling step also
Including slitting step, slitting step cuts longitudinal both sides of PET protection film.
3. high temperature resistant PET protection film production technology according to claim 2, it is characterised in that: the preheating step, high temperature
Baking procedure, high-temperature shaping step, cooling step, the PET protection film in slitting step are with the operation of identical conduct speed, institute
Stating conduct speed is 18-22m/min.
4. high temperature resistant PET protection film production technology according to claim 1, it is characterised in that: the cross of the PET protection film
It is 0.34% to micro- shrinking percentage.
5. high temperature resistant PET protection film production technology according to claim 1, it is characterised in that: the high heat baking step
In high temperature oven use a section high temperature oven, or use more piece high temperature oven, the length of the section high temperature oven is equal to more
Save the length of high temperature oven.
6. high temperature resistant PET protection film production technology according to claim 1, it is characterised in that: the high-temperature shaping step
The middle heating roller using 140-160 degree.
7. high temperature resistant PET protection film production technology according to claim 1, it is characterised in that: adopted in the cooling step
With 40-48h is stood, the temperature of PET protection film is down to 30 DEG C of room temperature temperature or less.
8. high temperature resistant PET protection film production technology according to claim 2, it is characterised in that:, will in the slitting step
Longitudinal both sides of PET protection film cut 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744195.3A CN110435127A (en) | 2019-08-13 | 2019-08-13 | High temperature resistant PET protection film production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744195.3A CN110435127A (en) | 2019-08-13 | 2019-08-13 | High temperature resistant PET protection film production technology |
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| CN110435127A true CN110435127A (en) | 2019-11-12 |
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| CN201910744195.3A Pending CN110435127A (en) | 2019-08-13 | 2019-08-13 | High temperature resistant PET protection film production technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997608A (en) * | 2021-10-21 | 2022-02-01 | 上海晶路电子科技有限公司 | Production method of high-temperature-resistant polyester film |
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| EP1669992A2 (en) * | 1994-09-27 | 2006-06-14 | Matsushita Electric Industrial Co., Ltd. | Production process of optical information recording medium |
| CN101378902A (en) * | 2006-02-02 | 2009-03-04 | 巴塞尔聚烯烃股份有限公司 | Multilayer thermoshrinkable films |
| CN101910261A (en) * | 2007-11-19 | 2010-12-08 | 可隆工业株式会社 | Thermo-shrinkable polyester film |
| CN101945929A (en) * | 2007-12-11 | 2011-01-12 | 可隆工业株式会社 | Thermo-shrinkable polyester film |
| CN104140590A (en) * | 2014-06-23 | 2014-11-12 | 苏州市盛百威包装设备有限公司 | Thermal shrinkage-resistant polypropylene film material and preparation method thereof |
| CN107901555A (en) * | 2017-11-22 | 2018-04-13 | 贵州金田新材料科技有限公司 | A kind of BOPP high temperature resistants protective film and preparation method thereof |
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2019
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|---|---|---|---|---|
| EP1669992A2 (en) * | 1994-09-27 | 2006-06-14 | Matsushita Electric Industrial Co., Ltd. | Production process of optical information recording medium |
| CN101378902A (en) * | 2006-02-02 | 2009-03-04 | 巴塞尔聚烯烃股份有限公司 | Multilayer thermoshrinkable films |
| CN101910261A (en) * | 2007-11-19 | 2010-12-08 | 可隆工业株式会社 | Thermo-shrinkable polyester film |
| CN101945929A (en) * | 2007-12-11 | 2011-01-12 | 可隆工业株式会社 | Thermo-shrinkable polyester film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997608A (en) * | 2021-10-21 | 2022-02-01 | 上海晶路电子科技有限公司 | Production method of high-temperature-resistant polyester film |
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Application publication date: 20191112 |