CN103448343A - Full-spectrum liquid crystal brightness enhancement film preparation technology - Google Patents
Full-spectrum liquid crystal brightness enhancement film preparation technology Download PDFInfo
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- CN103448343A CN103448343A CN2013104060651A CN201310406065A CN103448343A CN 103448343 A CN103448343 A CN 103448343A CN 2013104060651 A CN2013104060651 A CN 2013104060651A CN 201310406065 A CN201310406065 A CN 201310406065A CN 103448343 A CN103448343 A CN 103448343A
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- Prior art keywords
- liquid crystal
- film
- sensitive adhesive
- brightness enhancement
- pressure sensitive
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 45
- 238000001228 spectrum Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 238000013329 compounding Methods 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 229920002799 BoPET Polymers 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 28
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 14
- 235000012000 cholesterol Nutrition 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000003848 UV Light-Curing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001723 curing Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 abstract description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Abstract
The invention discloses a full-spectrum liquid crystal brightness enhancement film preparation technology. The technology comprises the following steps: (1) blending cholesteric liquid crystal powder into liquid under the condition of constant temperature, thus obtaining cholesteric liquid crystal liquid; (2) coating the cholesteric liquid crystal liquid obtained in the step (1) on a PET (polyethylene terephthalate) film by utilizing coating equipment, thus obtaining a first substrate film; (3) compounding the first substrate film obtained in the step (2) with another PET film by utilizing a compound machine, and curing the films by utilizing a UV (ultraviolet) curing oven; (4) separating the films cured in the step (3), and selecting the side on which the cholesteric liquid crystal liquid is coated, thus obtaining a liquid crystal film; (5) adding a pressure sensitive adhesive to a solvent to be diluted, thus preparing pressure sensitive adhesive liquid; (6) coating the pressure sensitive adhesive liquid obtained in the step (5) on the release side of a release film, thus obtaining a release pressure sensitive adhesive film; (7) conveying the release pressure sensitive adhesive film obtained in the step (6) to an oven to be heated so that the pressure sensitive adhesive liquid coated on the surface is in a semi-solid state; (8) compounding the release pressure sensitive adhesive film treated in the step (7) with the liquid crystal film obtained in the step (4) by utilizing the compound machine, thus obtaining a full-spectrum brightness enhancement film product.
Description
Technical field
The present invention relates to brightness enhancement film manufacturing technology field, disclose a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology.
Background technology
Current cholesteric liquid crystal wavelength single spectrum local oscillator wavelength 70 ~ 100nm, in order to realize full spectrum blast, since nineteen ninety various schemes have been done by scientific circles, the paper of the more influential SID of being wherein: its statement is the single spectrum stack combinations by several different wave lengths, can contain full spectrum after 3 ∽ is 5 layers, layer rubbing method more than meaning, there are test manufacture in Japan and Korea S.The broadening method is separately arranged: principle is to make itself spectrum extension in solidification process, be extended to full spectrum, the patent that this reaction is early stage at some, the Philips laboratory is general through having done an experiment, and in liquid crystal, increase " ultraviolet absorber " causes on the thickness direction of film ultraviolet ray generation UV absorption gradient is caused to the curing rate gradient with this, UV-curing is stopped the difference of speed, cause liquid crystal to produce the state constantly separated in solidification process, caused wavelength to widen gradually, the emphasis of the patent of this Philips is, at longitudinal direction, ultraviolet light is caused to gradient, occurred again that along with the Philips patent polymerizable mixes with polymerisable liquid crystal not after occurring, on UV-irradiation, utilize the liquid crystal of not polymerization to produce the principle that proportioning constantly changes when ultraviolet light outwards flows, make the local oscillator width of liquid crystal constantly change and cause wavelength to broaden, everything manufacture method, it is that manufacturing time is oversize that a common shortcoming is arranged, can't realize industrialization.Comprise that Merck & Co., Inc. also once attempted to heat with first solidifying again, generation time gradient on vertically synthetic, enlarge the liquid crystal thermal expansion and cause frequency spectrum to change.But more than be unidirectional gradient, time-consuming and unstable, fail to form suitability for industrialized production.
Summary of the invention
The object of the present invention is to provide a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology, efficiency is high, cost is low, is suitable for industrialization production.
In order to reach above technique effect, technical scheme of the present invention is as follows:
A kind of full spectrum liquid crystal brightness enhancement film manufacturing technology comprises following manufacturing step:
(1) by the cholesterol liquid crystal powder under constant temperature, reconcile into liquid condition, obtain cholesterol liquid crystal liquid;
(2) utilize coating apparatus to coat on the PET film (1) gained cholesterol liquid crystal liquid, obtain the first base material film;
(3) (2) gained the first base material film is utilized compounding machine and another PET film compound, and utilize the UV curing oven to solidify;
(4) film (3) are cured is separated, and chooses the one side that scribbles cholesterol liquid crystal liquid, obtains liquid crystal film;
(5) pressure sensitive adhesive is added to solvent dilution, make pressure sensitive adhesive solution;
(6) (5) pressure sensitive adhesive solution that obtains is coated to release of mould release membrance, obtained release pressure-sensitive adhesive film;
(7) (6) gained rationality pressure-sensitive adhesive film is delivered to oven heat, makes the pressure sensitive adhesive solution of surface-coated reach half curdled appearance;
(8) the release pressure-sensitive adhesive film that will process through (7) utilizes compounding machine compound with the liquid crystal film obtained by (4), obtains full spectrum brightness enhancement film product.
Preferably, the described constant temperature of step (1) is that temperature is made as the constant temperature of 45 ℃.
Preferably, the described coating operation of step (2), be set under 35 ~ 45 ℃ of steady temperatures in interval and carry out.
Preferably, the described UV curing oven of step (3) curing operation, the ultraviolet illumination of setting is 90 ~ 150uw/c ㎡.
Preferably, the described pressure sensitive adhesive solution viscosity of step (5) remains on 60 ~ 80%.
Preferably, the described coating operation of step (6), coating pressure is 3 ~ 4kg/ ㎡, the pressure sensitive adhesive solution coating layer thickness is 50 μ m.
Preferably, the described oven heat Temperature Setting of step (7) is 80 ~ 120 ℃.
Preferably, the described composition operation of step (8), composite pressure is 2.5 ~ 3.5kg/ ㎡.
Apply a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology of the present invention, have following technique effect: (1) production time is short, efficiency is high, cost is low, and operation is simple, and easy operating is realized, is suitable for industrialization production; (2) the full spectrum liquid crystal brightness enhancement film of using the technology of the present invention to produce, the full spectrum brightness enhancement film that the technology such as multi-layer coated existed is relatively produced, film thickness is thinner, save space, further having improved light spends thoroughly, and improved the effect of blast, and having reduced the consumption of energy, range of application is wider.
The specific embodiment
Describe technical scheme of the present invention in detail below in conjunction with specific embodiment, in this illustrative examples of the present invention and explanation, be used for explaining technical scheme of the present invention, but not as a limitation of the invention.
The present embodiment:
A kind of full spectrum liquid crystal brightness enhancement film manufacturing technology comprises following manufacturing step:
Step 1, under 45 ℃ of constant temperatures, reconcile into liquid condition by the cholesterol liquid crystal powder, obtains cholesterol liquid crystal liquid;
Step 2, by step 1 gained cholesterol liquid crystal liquid, utilize under the steady temperature of coating apparatus in 45 ℃ of intervals, coats on the PET film, obtains the first base material film;
Step 3, by step 2 gained the first base material film utilize compounding machine and another PET film compound, and utilize the UV curing oven, in ultraviolet illumination, be to solidify under 120uw/c ㎡ condition;
Step 4, the film that step 3 is cured is separated, and chooses the one side that scribbles cholesterol liquid crystal liquid, obtains liquid crystal film;
Step 5, add solvent dilution by pressure sensitive adhesive, makes viscosity and remain on 70% pressure sensitive adhesive solution;
Step 6, by pressure sensitive adhesive solution that step 5 obtains, coat mould release membrance with the coating pressure of 4kg/ ㎡ release, the pressure sensitive adhesive solution coating layer thickness is 50 μ m, obtains release pressure-sensitive adhesive film;
Step 7, be delivered to baking box with the temperature of 100 ℃ heating by step 6 gained rationality pressure-sensitive adhesive film, makes the pressure sensitive adhesive solution of surface-coated reach half curdled appearance;
Step 8, the release pressure-sensitive adhesive film that will process through step 7 utilizes compounding machine compound with the composite pressure of 3.5 kg/ ㎡ with the liquid crystal film obtained by step 4, obtains full spectrum brightness enhancement film product.
The full spectrum liquid crystal brightness enhancement film manufacturing technology that the present embodiment provides, the production time is short, efficiency is high, cost is low, and operation is simple, and easy operating is realized, is suitable for industrialization production; The full spectrum liquid crystal brightness enhancement film of using the present embodiment to produce, the full spectrum brightness enhancement film that the technology such as multi-layer coated existed before is relatively produced, film thickness is thinner, save space, further improved light and thoroughly spent, and improved the effect of blast, reduced the consumption of energy, range of application is wider.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (8)
1. a full spectrum liquid crystal brightness enhancement film manufacturing technology is characterized in that: comprise following manufacturing step:
(1) by the cholesterol liquid crystal powder under constant temperature, reconcile into liquid condition, obtain cholesterol liquid crystal liquid;
(2) utilize coating apparatus to coat on the PET film (1) gained cholesterol liquid crystal liquid, obtain the first base material film;
(3) (2) gained the first base material film is utilized compounding machine and another PET film compound, and utilize the UV curing oven to solidify;
(4) film (3) are cured is separated, and chooses the one side that scribbles cholesterol liquid crystal liquid, obtains liquid crystal film;
(5) pressure sensitive adhesive is added to solvent dilution, make pressure sensitive adhesive solution;
(6) (5) pressure sensitive adhesive solution that obtains is coated to release of mould release membrance, obtained release pressure-sensitive adhesive film;
(7) (6) gained rationality pressure-sensitive adhesive film is delivered to oven heat, makes the pressure sensitive adhesive solution of surface-coated reach half curdled appearance;
(8) the release pressure-sensitive adhesive film that will process through (7) utilizes compounding machine compound with the liquid crystal film obtained by (4), obtains full spectrum brightness enhancement film product.
2. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1, it is characterized in that: the described constant temperature of step (1) is that temperature is made as the constant temperature of 45 ℃.
3. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1 is characterized in that: the described coating operation of step (2) is set under 35 ~ 45 ℃ of steady temperatures in interval and carries out.
4. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1 is characterized in that: preferred, and the described UV curing oven of step (3) curing operation, the ultraviolet illumination of setting is 90 ~ 150uw/c ㎡.
5. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1, it is characterized in that: the described pressure sensitive adhesive solution viscosity of step (5) remains on 60 ~ 80%.
6. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1 is characterized in that: the described coating operation of step (6), and coating pressure is 3 ~ 4kg/ ㎡, the pressure sensitive adhesive solution coating layer thickness is 50 μ m.
7. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1, it is characterized in that: the described oven heat Temperature Setting of step (7) is 80 ~ 120 ℃.
8. a kind of full spectrum liquid crystal brightness enhancement film manufacturing technology according to claim 1, it is characterized in that: the described composition operation of step (8), composite pressure is 2.5 ~ 3.5kg/ ㎡.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406065.1A CN103448343B (en) | 2013-09-09 | 2013-09-09 | A kind of full spectrum liquid crystal brightness enhancement film manufacturing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406065.1A CN103448343B (en) | 2013-09-09 | 2013-09-09 | A kind of full spectrum liquid crystal brightness enhancement film manufacturing technology |
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| Publication Number | Publication Date |
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| CN103448343A true CN103448343A (en) | 2013-12-18 |
| CN103448343B CN103448343B (en) | 2017-09-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707330A (en) * | 2004-06-04 | 2005-12-14 | 长兴化学工业股份有限公司 | Optical film and producing method thereof |
| JP2011186158A (en) * | 2010-03-08 | 2011-09-22 | Nippon Zeon Co Ltd | Film, film roll and method for manufacturing film |
| CN102289022A (en) * | 2011-09-05 | 2011-12-21 | 青岛海信电器股份有限公司 | Brightness raising film, preparing method and application of same |
| CN102642353A (en) * | 2012-03-26 | 2012-08-22 | 明基材料有限公司 | Optical film sticking structure and manufacturing method thereof |
-
2013
- 2013-09-09 CN CN201310406065.1A patent/CN103448343B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707330A (en) * | 2004-06-04 | 2005-12-14 | 长兴化学工业股份有限公司 | Optical film and producing method thereof |
| JP2011186158A (en) * | 2010-03-08 | 2011-09-22 | Nippon Zeon Co Ltd | Film, film roll and method for manufacturing film |
| CN102289022A (en) * | 2011-09-05 | 2011-12-21 | 青岛海信电器股份有限公司 | Brightness raising film, preparing method and application of same |
| CN102642353A (en) * | 2012-03-26 | 2012-08-22 | 明基材料有限公司 | Optical film sticking structure and manufacturing method thereof |
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| Publication number | Publication date |
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| CN103448343B (en) | 2017-09-19 |
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Effective date of registration: 20161123 Address after: Pai Lou Xiang, Gulou District of Nanjing city in Jiangsu province 210029 No. 47 6 floor Applicant after: Jiangsu Zhongxing surplus Trade Group Co.,Ltd. Address before: 210000 Lishui Economic Development Zone (Nanjing Special Economic Zone), Jiangsu, China Applicant before: NANJING KAISHANG INFORMATION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20171201 Address after: 211200 Lishui Economic Development Zone, Jiangsu, Nanjing Patentee after: Jiangsu Kaishang Green Building Management Co.,Ltd. Address before: Pai Lou Xiang, Gulou District of Nanjing city in Jiangsu province 210029 No. 47 6 floor Patentee before: Jiangsu Zhongxing surplus Trade Group Co.,Ltd. |
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Effective date of registration: 20200526 Granted publication date: 20170919 |
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Date of cancellation: 20220526 Granted publication date: 20170919 |