CN102615897A - Polyester film in field of optical films - Google Patents
Polyester film in field of optical films Download PDFInfo
- Publication number
- CN102615897A CN102615897A CN2012100903112A CN201210090311A CN102615897A CN 102615897 A CN102615897 A CN 102615897A CN 2012100903112 A CN2012100903112 A CN 2012100903112A CN 201210090311 A CN201210090311 A CN 201210090311A CN 102615897 A CN102615897 A CN 102615897A
- Authority
- CN
- China
- Prior art keywords
- polyester film
- field
- blooming
- contain
- additive
- 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.)
- Pending
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a polyester film in the field of optical films. The polyester film comprises a polyester film layer, the polyester film layer does not contain any additives, and coating treatment of coating fluid containing resin and the additives is performed on one surface or two surfaces of the polyester film layer. The polyester film layer disclosed by the invention does not contain any additives, the light transmittance of the polyester film can not be affected due to the adding of SiO2 in the prior art, the polyester film with high light transmittance and low mist degree in the optical field is obtained, and after the coating treatment of the coating fluid containing the resin and the additives is performed on one surface or two surfaces of the polyester film layer, the problems that the polyester film which does not contain the SiO2 and other additives is prone to adhesion during the production process and difficult rolling and processing of the film are further caused can be solved.
Description
Technical field
The present invention relates to a kind of polyester film, relate in particular to a kind of polyester film that is applied to optical grade film field.
Background technology
Polyester film is because of having good characteristics such as hot strength is big, elastic modelling quantity is high, impact strength is big, heat-resisting cold resistance is good, electrical insulation capability is good, and is widely used in numerous industries and field.Polyester film is in response to the difference with the field, and its performance demands also has nothing in common with each other.The mechanical performance of many emphasis polyester films and stability etc. are then less demanding to optical property in the conventional field, are generally less than 89% like the polyester film light transmittance, and mist degree is much larger than 1.5%.
In numerous applications, the blooming in the LCD of large, medium and small each size, the LED flat-panel monitor, like polyester films that adopt such as the diaphragms of brightness enhancement film, diffusion barrier, polaroid more as basement membrane.But this polyester film like light transmittance, mist degree, impurity and defective etc., has very high requirement often to its optical property, is far longer than the performance indications of the polyester film in conventional field.According to the difference of application, the thickness range of various optical films is between 25 μ m～250 μ m.
Generally, for the ease of the processing of polyester film in production and process, often in polyester slice, add and contain nanometer, micron-sized additive, like SiO
2Masterbatch, with rolling and the processing characteristics of improving film.But the existence of nanometer or micron order additive tends to cause the reduction of polyester film light transmittance in the polyester film, the raising of mist degree; The reduction of this performance makes polyester film can not be applicable to the Application of optical film to the optical property high request, and is special in brightness enhancement film, diffusion barrier in the display screen, and the diaphragm of polaroid etc.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency that exists when using in the blooming field to polyester film in the prior art provides the polyester film that the blooming field is used that is applicable to that a kind of light transmittance is high, mist degree is low and have good processing characteristics.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Polyester film is used in a kind of blooming field, comprises laminated polyester film, does not contain any additives in the said laminated polyester film, and one or two surface processes of said laminated polyester film contain the coated of the coating fluid of resin and additive.
Preferably, said resin is one or more in water miscible acrylic resin, water miscible polyurethane resin and the water miscible mylar, and said additive is powder silica, the cataloid aqueous solution or polysiloxanes.
Preferably,, contain the resin of 1～10 weight portion in the said coating fluid, contain the additive of 0.1～10 weight portion in 100 weight portions.
Preferably, the average grain diameter of said silica is 5～100nm.
As a kind of preferred, also contain auxiliary agent in the said coating fluid, said auxiliary agent comprises one or more in levelling agent, wetting agent, crosslinking agent, the antistatic additive.
Wherein, said auxiliary agent comprises but is not limited to n-butanol, isobutanol, polysiloxanes; Silane coupler; At least a in quaternary ammonium salt, azoles quinoline salt, sodium alkyl sulfonate, the polymer type antistatic agent.
As a kind of preferred, said laminated polyester film adopts the big bright PET chips of optical grade to obtain through biaxial tension.
Wherein, adopt the mode of roller coat to apply during said the coating, and be shaped through high-temperature process.
The thickness of said polyester film is 25～250 μ m, light transmittance>=90%, mist degree≤1%.
The blooming field uses the preparation method of the middle basic unit of polyester film to be:
1, will not contain the big bright PET chips of the optical grade of nanometer, micron order additive through after the preliminary treatment, and be conveyed into and melt extrude system and extrude, melt extrude temperature in the system between 240～300 ℃ through die head;
2, through die head extrude melt on the chilling roller, form transparent unbodied polyester casting sheet;
3, in longitudinal stretching machine (MDO), cooled casting sheet after preheating, 3.3 times of longitudinal stretchings;
4, in cross directional stretch machine (TDO), after the diaphragm preheating behind the longitudinal stretching, 3.5 times of cross directional stretch;
5, with 160～240 ℃ of thermal finalizations of the warp of the film behind the cross directional stretch, rolling after cooling, obtaining thickness is the middle basic unit of the blooming field of 25～250 μ m with polyester film.
When being coated with, the present invention preferably behind longitudinal stretching, carries out.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
Do not contain any additives in the laminated polyester film of the present invention, therefore can be because of being added into SiO in the prior art
2Deng additive and influence the light transmittance of polyester film; And adopt the big bright PET chips of optical grade to prepare through biaxial tension; Also add the PET masterbatch contain any additives in the production process, this has much in the polyester film that light PET raw material can guarantee to obtain not or contains the least possible impurity and defective, like impurity particle, brilliant point; White point etc.; Avoid the influence of the existence of these impurity, and after the coated of the coating fluid that contains resin and additive is passed through on one or two surfaces of laminated polyester film, solved and do not contained SiO the polyester film optical property
2Deng adhesion easily in the polyester film production process of additive; And cause the problem of film take-up and processing difficulties; And the existence of additive can give film good smooth property in the coating layer; Effectively improve the PET film because of not containing the adhesion that additive causes, and improve the light transmittance of film to a certain extent, and the adhesion property that improves this polyester film and coating layer, coating layer and back operations layer.
Also comprise one or more auxiliary agents in levelling agent, wetting agent, crosslinking agent, the antistatic additive in the coating fluid of the present invention, can give polyester film antistatic property, good processing properties and polyester film when using and the good adhesion property of work layer.
The specific embodiment
Below in conjunction with concrete embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
1, will not contain the big bright PET chips of the optical grade of nanometer, micron order additive through after the preliminary treatment, and be conveyed into and melt extrude system and extrude, melt extrude temperature in the system at 280 ℃ through die head.
2, through die head extrude melt on the chilling roller, form transparent unbodied polyester casting sheet.
3, in longitudinal stretching machine (MDO), cooled casting sheet after preheating, 3.3 times of longitudinal stretchings.
4, use and to contain the water miscible acrylic resin of 5 weight portions and water miscible mylar, 3 weight portion powder SiO
2, 92 weight portion high purity waters two surfaces of the film of coating fluid behind longitudinal stretching, use the mode of roller coat to be coated with, wherein, the average grain diameter of silica is 5～10nm.
5, in cross directional stretch machine (TDO), after the diaphragm preheating after longitudinal stretching and the coating, 3.5 times of cross directional stretch.
6, with the film behind the cross directional stretch through 220 ℃ of thermal finalizations, rolling after cooling, polyester film is used in the blooming field that obtains thickness and be 125 μ m.
Embodiment 2
1, will not contain the big bright PET chips of the optical grade of nanometer, micron order additive through after the preliminary treatment, and be conveyed into and melt extrude system and extrude, melt extrude temperature in the system at 280 ℃ through die head.
2, through die head extrude melt on the chilling roller, form transparent unbodied polyester casting sheet.
3, in longitudinal stretching machine (MDO), cooled casting sheet after preheating, 3.3 times of longitudinal stretchings.
4, use two surfaces of the film of coating fluid behind longitudinal stretching contain the water miscible polyurethane resin of 5 weight portions and water miscible mylar, the 5 weight portion cataloid aqueous solution, 1 weight portion silane coupler, 89 weight portion high purity waters; Use the mode of roller coat to be coated with; Wherein, the average grain diameter of silica is 5～10nm.
5, in cross directional stretch machine (TDO), after the diaphragm preheating after longitudinal stretching and the coating, 3.5 times of cross directional stretch.
6, with the film behind the cross directional stretch through 220 ℃ of thermal finalizations, rolling after cooling, polyester film is used in the blooming field that obtains thickness and be 125 μ m.
Embodiment 3～11
Adopt the preparation method of similar embodiment 1, change resin (A), the kind and the consumption of additive (B) and auxiliary agent (C) are prepared the coating fluid of variety classes and purposes, and in embodiment 1 coated on the PET basement membrane.
Comparative example 1
Employing contains micron order SiO
2The polyester slice of additive is through after the preliminary treatment, be conveyed into to melt extrude system and extrude through die head, through die head extrude melt on the chilling roller, forms transparent unbodied polyester and casts sheet; In longitudinal stretching machine (MDO), cooled casting sheet after preheating, 3.3 times of longitudinal stretchings; In cross directional stretch machine (TDO); After the diaphragm preheating behind the longitudinal stretching, cross directional stretch prepares the polyester film that thickness is 125 μ m, wherein additive SiO for 3.5 times
2Content be about 900ppm, particle diameter is about 4um.
Comparative example 2
1, will not contain the big bright PET chips of the optical grade of nanometer, micron order additive through after the preliminary treatment, and be conveyed into and melt extrude system and extrude, melt extrude temperature in the system at 280 ℃ through die head.
2, through die head extrude melt on the chilling roller, form transparent unbodied polyester casting sheet.
3, in longitudinal stretching machine (MDO), cooled casting sheet after preheating, 3.3 times of longitudinal stretchings.
4,, in cross directional stretch machine (TDO), after the diaphragm preheating behind the longitudinal stretching, 3.5 times of cross directional stretch.
5, with 220 ℃ of thermal finalizations of the warp of the film behind the cross directional stretch, rolling after cooling, obtain the polyester film that thickness is 125 μ m.
Table 1
In the table 1:
1, A1 is a water soluble polyurethane resin, and A2 is a water-soluble polyester resin, and A3 is the water soluble acrylic resin.
2, B1 is powder SiO
2, B2 is the cataloid aqueous solution, B3 is a silicone resin.
3, the test of light transmittance, mist degree, the method for testing of employing ASTM D 1003.
4, the test of coefficient of friction, the method for testing of employing ASTM D 1894.
Claims (9)
1. polyester film is used in a blooming field, comprises laminated polyester film, it is characterized in that: do not contain any additives in the said laminated polyester film, one or two surface processes of said laminated polyester film contain the coated of the coating fluid of resin and additive.
2. polyester film is used in blooming as claimed in claim 1 field; It is characterized in that: said resin is one or more in water miscible acrylic resin, water miscible polyurethane resin and the water miscible mylar, and said additive is powder silica, the cataloid aqueous solution or polysiloxanes.
3. polyester film is used in blooming as claimed in claim 2 field, it is characterized in that: in 100 weight portions, contain the resin of 1～10 weight portion in the said coating fluid, contain the additive of 0.1～10 weight portion.
4. polyester film is used in blooming as claimed in claim 2 field, it is characterized in that: the average grain diameter of said silica is 5～100nm.
5. polyester film is used in blooming as claimed in claim 1 field, it is characterized in that: also contain auxiliary agent in the said coating fluid, said auxiliary agent comprises one or more in levelling agent, wetting agent, crosslinking agent, the antistatic additive.
6. polyester film is used in blooming as claimed in claim 5 field, it is characterized in that: said auxiliary agent comprises but is not limited to n-butanol, isobutanol, polysiloxanes; Silane coupler; At least a in quaternary ammonium salt, azoles quinoline salt, sodium alkyl sulfonate, the polymer type antistatic agent.
7. use polyester film like described any blooming field of claim 1 to 6, it is characterized in that: said laminated polyester film adopts the big bright PET chips of optical grade to obtain through biaxial tension.
8. polyester film is used in blooming as claimed in claim 7 field, it is characterized in that: adopt the mode of roller coat to apply during said the coating.
9. polyester film is used in blooming as claimed in claim 8 field, it is characterized in that: the thickness of said polyester film is 25～250 μ m, light transmittance>=90%, mist degree≤1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100903112A CN102615897A (en) | 2012-03-30 | 2012-03-30 | Polyester film in field of optical films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100903112A CN102615897A (en) | 2012-03-30 | 2012-03-30 | Polyester film in field of optical films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102615897A true CN102615897A (en) | 2012-08-01 |
Family
ID=46556265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100903112A Pending CN102615897A (en) | 2012-03-30 | 2012-03-30 | Polyester film in field of optical films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102615897A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104830176A (en) * | 2015-05-19 | 2015-08-12 | 广东可逸智膜科技有限公司 | Water-based wiping-resistant matte coating film and preparation method thereof |
| CN104893525A (en) * | 2015-05-26 | 2015-09-09 | 张家港康得新光电材料有限公司 | Coating liquid and hardened polyester film |
| CN104898875A (en) * | 2014-03-07 | 2015-09-09 | 群创光电股份有限公司 | Touch control panel, display panel and strengthening structure for protection base plate |
| CN107065042A (en) * | 2017-05-05 | 2017-08-18 | 广州市松诺电子有限公司 | A kind of thin film lens and its preparation technology |
| CN108774331A (en) * | 2018-05-10 | 2018-11-09 | 重庆新康意安得达尔新材料有限公司 | A kind of complex optics pre-coating film |
| CN108790338A (en) * | 2018-05-23 | 2018-11-13 | 营口康辉石化有限公司 | Polyester film and preparation method thereof |
| CN111073015A (en) * | 2019-12-29 | 2020-04-28 | 合肥乐凯科技产业有限公司 | Optical film |
| CN112644134A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | Laser mould pressing polyester film |
| CN112646223A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | High-barrier polyester film and production method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357453A (en) * | 2000-12-08 | 2002-07-10 | 东洋纺绩株式会社 | Optical coated film |
| US6482501B2 (en) * | 1998-05-18 | 2002-11-19 | Toyo Boseki Kabushiki Kaisha | Optical-use adhesive film |
| US6733863B1 (en) * | 1999-01-21 | 2004-05-11 | Toyo Boseki Kabushiki Kaisha | Optical-use adhesive film and roll thereof |
| CN1649734A (en) * | 2002-05-02 | 2005-08-03 | 帝人杜邦菲林日本株式会社 | Laminated film for optical use |
| CN101452094A (en) * | 2007-10-29 | 2009-06-10 | 富士胶片株式会社 | Optical layer pieces and manufacture method thereof |
| CN101866023A (en) * | 2010-05-28 | 2010-10-20 | 中国乐凯胶片集团公司 | Optical polyester film and preparation method thereof |
| EP2335924A1 (en) * | 2008-10-06 | 2011-06-22 | Mitsubishi Plastics, Inc. | Multilayer polyester film |
-
2012
- 2012-03-30 CN CN2012100903112A patent/CN102615897A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6482501B2 (en) * | 1998-05-18 | 2002-11-19 | Toyo Boseki Kabushiki Kaisha | Optical-use adhesive film |
| US6733863B1 (en) * | 1999-01-21 | 2004-05-11 | Toyo Boseki Kabushiki Kaisha | Optical-use adhesive film and roll thereof |
| CN1357453A (en) * | 2000-12-08 | 2002-07-10 | 东洋纺绩株式会社 | Optical coated film |
| CN1649734A (en) * | 2002-05-02 | 2005-08-03 | 帝人杜邦菲林日本株式会社 | Laminated film for optical use |
| CN101452094A (en) * | 2007-10-29 | 2009-06-10 | 富士胶片株式会社 | Optical layer pieces and manufacture method thereof |
| EP2335924A1 (en) * | 2008-10-06 | 2011-06-22 | Mitsubishi Plastics, Inc. | Multilayer polyester film |
| CN101866023A (en) * | 2010-05-28 | 2010-10-20 | 中国乐凯胶片集团公司 | Optical polyester film and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898875A (en) * | 2014-03-07 | 2015-09-09 | 群创光电股份有限公司 | Touch control panel, display panel and strengthening structure for protection base plate |
| CN104830176A (en) * | 2015-05-19 | 2015-08-12 | 广东可逸智膜科技有限公司 | Water-based wiping-resistant matte coating film and preparation method thereof |
| CN104893525A (en) * | 2015-05-26 | 2015-09-09 | 张家港康得新光电材料有限公司 | Coating liquid and hardened polyester film |
| CN107065042A (en) * | 2017-05-05 | 2017-08-18 | 广州市松诺电子有限公司 | A kind of thin film lens and its preparation technology |
| CN107065042B (en) * | 2017-05-05 | 2020-02-14 | 湖北松诺电子有限公司 | Thin film lens and preparation process thereof |
| CN108774331A (en) * | 2018-05-10 | 2018-11-09 | 重庆新康意安得达尔新材料有限公司 | A kind of complex optics pre-coating film |
| CN108790338A (en) * | 2018-05-23 | 2018-11-13 | 营口康辉石化有限公司 | Polyester film and preparation method thereof |
| CN112644134A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | Laser mould pressing polyester film |
| CN112646223A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | High-barrier polyester film and production method thereof |
| CN111073015A (en) * | 2019-12-29 | 2020-04-28 | 合肥乐凯科技产业有限公司 | Optical film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102615897A (en) | Polyester film in field of optical films | |
| JP5390052B1 (en) | POLYVINYL ALCOHOL POLYMER FILM AND POLARIZING FILM | |
| JP5089798B2 (en) | Method for producing polyvinyl alcohol film for polarizing film | |
| TWI405798B (en) | Cellulose ester film, polarizing plate for in-plane-swtiching mode display and in-plane-switching mode display using the cellulose ester film | |
| CN110774713A (en) | Coating type high-barrier bidirectional-stretching polylactic acid film and preparation method thereof | |
| JP5348823B2 (en) | Polyvinyl alcohol film for polarizing film, polarizing film, and polarizing plate | |
| TW200304461A (en) | Polyvinyl alcohol film | |
| CN109153797A (en) | Polyvinyl alcohol film and its manufacturing method and the light polarizing film for using the polyvinyl alcohol film | |
| WO2012002194A1 (en) | Polyvinyl alcohol film, method for producing polyvinyl alcohol film, polarizing film, and polarizing plate | |
| KR101945844B1 (en) | Polyester film for optical | |
| TW200940616A (en) | Polyester film for optical application | |
| TWI581970B (en) | Laminate film and manufacturing method thereof | |
| CN105176432A (en) | Preparation method of antistatic polyester protective film | |
| CN103753924B (en) | A kind of high transparent polyester film and preparation method thereof | |
| CN102200605A (en) | Polarizer set, liquid crystal panel and liquid crystal display device equipped with the polarizer set | |
| CN103692748A (en) | Optical polyester thin film | |
| CN103703074A (en) | Resin composition, optical film formed using same, and polarizer and liquid crystal display device comprising same | |
| JP4499131B2 (en) | Manufacturing method of polarizing film | |
| CN114163886A (en) | Heat-insulating water-based paint capable of being constructed at low temperature and preparation method thereof | |
| TWI761303B (en) | Polyvinyl alcohol-based film, method for producing polyvinyl alcohol-based film, and polarizing film | |
| CN117468246A (en) | Waterproof fabric applied to bags and preparation method thereof | |
| JP2004020630A (en) | Polyvinyl alcohol film for optical use and manufacturing method | |
| KR101564658B1 (en) | Optical film | |
| TWI247664B (en) | A process for producing polarizing film | |
| WO2019208618A1 (en) | Polyvinyl alcohol film and method for producing polarizing film using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |