CN103454701B - A kind of high-stiffness composite reflective film - Google Patents
A kind of high-stiffness composite reflective film Download PDFInfo
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- CN103454701B CN103454701B CN201310438363.9A CN201310438363A CN103454701B CN 103454701 B CN103454701 B CN 103454701B CN 201310438363 A CN201310438363 A CN 201310438363A CN 103454701 B CN103454701 B CN 103454701B
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Abstract
A kind of high-stiffness composite reflective film, comprise reflectance coating basic unit, have microvesicle in described reflectance coating basic unit, the back side of described reflectance coating basic unit is provided with adhesive layer, and described adhesive layer is pasted with enhancement layer.The invention provides a kind of reflectance coating with composite bed, its deflection is good, and the phenomenon of diaphragm flexes not easily occurs.
Description
(1) technical field
The present invention relates to a kind of reflectance coating.
(2) background technology
Liquid crystal display (LCD, LiquidCrystalDisplay) has become current the most general display technique.Because LCD has environmental protection, consume energy low, Low emissivity, the advantages such as picture is soft, so LCD will be the display technique of main flow in coming few decades.LCD is the display device of non-luminescent, needs the function that just can reach display by backlight, so the quality of backlight performance can directly affect LCD video picture quality.
The main member of backlight system comprises: light source, light guide plate, all kinds of blooming piece.Current light source mainly contains EL, CCFL and LED three types, can be divided into side-light type and straight-down negative two kinds according to distribution of light sources position difference.Along with LCD module constantly to brighter, gentlier, thinner future development, side-light type back light become current backlight development main flow.The requirement of side-light type back light to the performance of reflectance coating is more and more higher, requires that reflectance coating has enough reflectivity and excellent shielding.
In backlight system, blooming piece mainly comprises reflectance coating, diffusion barrier and brightness enhancement film three kinds.At present, for improving the reflectivity of reflectance coating, extensive employing following methods, add a large amount of inorganic particulates or incompatible resin in the polyester, in biaxial orientation process, formed a large amount of microvesicle (as application number be 201010591111.6,201010589181.8, the Chinese invention patent of 201010589164.4 etc. the reflectance coating that provides all there is microvesicle), each microvesicle can be used as a total reflection unit, and the total reflection unit of high-density arrangement forms total reflection to light.The reflectance coating obtained by this method, has the advantages that reflectivity is high.But be filled with space in the reflectance coating with microvesicle, thus cause the density of reflectance coating to decline, the deflection of film reduces, specifically in use, the phenomenon of diaphragm flexes will be there is, especially even more serious in the field that televisor, liquid crystal display, advertising lamp box etc. need diaphragm vertically to place.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing reflectance coating, the invention provides a kind of high-stiffness composite reflective film.
The technical scheme that the present invention solves its technical matters is: a kind of high-stiffness composite reflective film, comprises reflectance coating basic unit, has microvesicle in described reflectance coating basic unit, and the back side of described reflectance coating basic unit is provided with adhesive layer, and described adhesive layer is pasted with enhancement layer.
Described enhancement layer material can be identical with described reflectance coating base material, also can be different.
When described enhancement layer material is identical with described reflectance coating base material, preferably described enhancement layer is two-way stretch plastic foil; Preferred, described enhancement layer is two-way stretch PET film.
Preferably, the material of described reflectance coating basic unit is PET; Be mixed with in the PET of described reflectance coating basic unit inconsistent with PET become nuclear particle, be mixed into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, in PET film, form microvesicle to become centered by nuclear particle.
Preferably, described one-tenth nuclear particle is TiO 2 particles.Preferred, described TiO 2 particles is rutile titanium dioxide.
Preferably, described adhesive layer is acrylate adhesive or polyurethane adhesive or epoxy adhesive or synvaren.
Beneficial effect of the present invention is: provide a kind of reflectance coating with composite bed, its deflection is good, and the phenomenon of diaphragm flexes not easily occurs.
(4) accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
(5) embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
With reference to Fig. 1, a kind of high-stiffness composite reflective film, comprises reflectance coating basic unit 1, has microvesicle 2 in described reflectance coating basic unit 1, and the back side of described reflectance coating basic unit 1 is provided with adhesive layer 3, and described adhesive layer 3 is pasted with enhancement layer 4.Described adhesive layer 3 can be acrylate adhesive or polyurethane adhesive or epoxy adhesive or synvaren.
In the present embodiment, the material of described reflectance coating basic unit 1 is PET; When shaping, be mixed with in the PET of reflectance coating basic unit inconsistent with PET become nuclear particle, be mixed into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, in PET film, form microvesicle to become centered by nuclear particle.Nuclear particle is become to be preferably TiO 2 particles.In the present embodiment, nuclear particle is become specifically to select rutile titanium dioxide.Rutile titanium dioxide is fewer than anatase titanium dioxide xanthochromia, and namely to irradiate the xanthochromia after polyester film for a long time few for light, can suppress the change of aberration.
In the present embodiment, described enhancement layer 4 material is identical with described reflectance coating basic unit 1 material, and described enhancement layer 4 is two-way stretch PET film.
In the present embodiment, reflectance coating basic unit 1 adopts PET, nuclear particle selects rutile titanium dioxide to one-tenth, enhancement layer 4 adopts two-way stretch PET film, adhesive layer 3 adopts acrylate adhesive.Combinations thereof can realize mutually collaborative, while the deflection ensureing reflectance coating, farthest takes into account the reflectivity of reflectance coating.
Certainly, enhancement layer also can be identical with reflectance coating basic unit, but deflection is slightly poor.
As required, outside adhesive layer and enhancement layer, then one deck adhesive layer and enhancement layer can be increased, and by that analogy, until reach required deflection and thickness.
Claims (1)
1. a high-stiffness composite reflective film, comprises reflectance coating basic unit, has microvesicle, it is characterized in that in described reflectance coating basic unit: the back side of described reflectance coating basic unit is provided with adhesive layer, and described adhesive layer is pasted with enhancement layer;
Described enhancement layer material is identical with described reflectance coating base material;
Described enhancement layer is two-way stretch PET film;
The material of described reflectance coating basic unit is PET;
Be mixed with in the PET of described reflectance coating basic unit inconsistent with PET become nuclear particle, be mixed into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, in PET film, form microvesicle to become centered by nuclear particle;
Described one-tenth nuclear particle is rutile titanium dioxide;
Described adhesive layer is acrylate adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438363.9A CN103454701B (en) | 2013-09-16 | 2013-09-16 | A kind of high-stiffness composite reflective film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310438363.9A CN103454701B (en) | 2013-09-16 | 2013-09-16 | A kind of high-stiffness composite reflective film |
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| Publication Number | Publication Date |
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| CN103454701A CN103454701A (en) | 2013-12-18 |
| CN103454701B true CN103454701B (en) | 2016-04-06 |
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| CN201310438363.9A Active CN103454701B (en) | 2013-09-16 | 2013-09-16 | A kind of high-stiffness composite reflective film |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675965B (en) * | 2013-12-19 | 2015-08-26 | 南京兰埔成新材料有限公司 | A kind of fretting map polyester reflective film |
| CN104635285B (en) * | 2015-01-30 | 2017-01-25 | 宁波长阳科技股份有限公司 | High-stiffness coated reflecting film and preparation method thereof |
| CN106903958B (en) * | 2016-03-07 | 2019-09-13 | 宁波长阳科技股份有限公司 | A kind of fitting reflectance coating and preparation method thereof |
| CN109425920B (en) * | 2017-08-16 | 2022-04-29 | 3M创新有限公司 | Reflective film |
| CN113917737B (en) * | 2021-12-13 | 2022-04-22 | 荣耀终端有限公司 | Reflection paper, backlight module and display device |
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| US20070153384A1 (en) * | 2005-12-30 | 2007-07-05 | Ouderkirk Andrew J | Reinforced reflective polarizer films |
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| CN1672067A (en) * | 2002-07-24 | 2005-09-21 | 优泊公司 | Light reflector |
| CN1809764A (en) * | 2003-06-18 | 2006-07-26 | 旭化成株式会社 | Antireflective film |
| CN102362217A (en) * | 2009-03-25 | 2012-02-22 | 帝人杜邦薄膜日本有限公司 | White film for reflector |
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| CN103454701A (en) | 2013-12-18 |
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