CN103454701A - High-stiffness composite reflecting film - Google Patents
High-stiffness composite reflecting film Download PDFInfo
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- CN103454701A CN103454701A CN2013104383639A CN201310438363A CN103454701A CN 103454701 A CN103454701 A CN 103454701A CN 2013104383639 A CN2013104383639 A CN 2013104383639A CN 201310438363 A CN201310438363 A CN 201310438363A CN 103454701 A CN103454701 A CN 103454701A
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- reflectance coating
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Abstract
A high-stiffness composite reflecting film comprises a reflecting film substrate, wherein microbubbles are formed in the reflecting film substrate, an adhesive layer is arranged on the back side of the reflecting film substrate, and a reinforcing layer adheres to the adhesive layer. The reflecting film is provided with multiple layers, is good in stiffness, and can not be bent easily.
Description
(1) technical field
The present invention relates to a kind of reflectance coating.
(2) background technology
Liquid crystal display (LCD, Liquid Crystal Display) has become the most general current display technique.Because LCD has environmental protection, consume energy low, low radiation, the advantage such as picture is soft, so LCD will be the display technique of main flow in coming few decades.LCD is non-luminiferous display device, need to just can reach the function of demonstration 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.At present light source mainly contains EL, CCFL and LED three types, according to distribution of light sources position difference, can be divided into two kinds of side-light type and straight-down negatives.Along with the LCD module constantly to brighter, gentlier, thinner future development, side-light type back light becomes the main flow of current backlight development.Side-light type back light is more and more higher to the requirement of the performance of reflectance coating, requires reflectance coating to have enough reflectivity and excellent covering property.
In the backlight system, blooming piece mainly comprises three kinds of reflectance coating, diffusion barrier and brightness enhancement film.At present, for improving the reflectivity of reflectance coating, extensively adopt following methods, add a large amount of inorganic particulate or incompatible resin in polyester, in biaxial orientation process, a large amount of microvesicle (reflectance coating provided as application number Chinese invention patent that is 201010591111.6,201010589181.8,201010589164.4 etc. all has microvesicle) is provided, and 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, have the advantages that reflectivity is high.Yet have in the reflectance coating of microvesicle and be full of space, thereby causing the density of reflectance coating to descend, the deflection of film reduces, specifically in use, the phenomenon of diaphragm flexes will occur, and the field that especially at televisor, liquid crystal display, advertising lamp box etc., needs diaphragm vertically to place is even more serious.
(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, comprise reflectance coating basic unit, and there is microvesicle in described reflectance coating basic unit, the back side of described reflectance coating basic unit is provided with adhesive layer, on 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, preferred described enhancement layer is the 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 described PET with PET is inconsistent and become nuclear particle, sneak into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, in the PET film, centered by becoming nuclear particle, form microvesicle.
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: a kind of reflectance coating with composite bed is provided, and its deflection is good, is difficult for occurring the phenomenon of diaphragm flexes.
(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, comprise reflectance coating basic unit 1, in described reflectance coating basic unit 1, has microvesicle 2, and the back side of described reflectance coating basic unit 1 is provided with adhesive layer 3, on 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 moulding, be mixed with in PET with PET is inconsistent and become nuclear particle, sneak into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, form microvesicle centered by becoming nuclear particle in the PET film.Become nuclear particle to be preferably TiO 2 particles.In the present embodiment, become nuclear particle specifically to select rutile titanium dioxide.Rutile titanium dioxide is fewer than the anatase titanium dioxide xanthochromia, and the xanthochromia that light irradiates for a long time after polyester film is few, can suppress the variation of aberration.
In the present embodiment, described enhancement layer 4 materials are 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, becomes nuclear particle to select rutile titanium dioxide, enhancement layer 4 to adopt two-way stretch PET film, adhesive layer 3 to adopt acrylate adhesive.Combinations thereof can realize mutually collaborative, in the deflection that guarantees 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, can be outside adhesive layer and enhancement layer, then increase one deck adhesive layer and enhancement layer, and by that analogy, until reach needed deflection and thickness.
Claims (10)
1. a high-stiffness composite reflective film, comprise reflectance coating basic unit, in described reflectance coating basic unit, has microvesicle, it is characterized in that: the back side of described reflectance coating basic unit is provided with adhesive layer, on described adhesive layer, is pasted with enhancement layer.
2. high-stiffness composite reflective film as claimed in claim 1, it is characterized in that: described enhancement layer material is identical with described reflectance coating base material.
3. high-stiffness composite reflective film as claimed in claim 1, it is characterized in that: described enhancement layer material is different from described reflectance coating base material.
4. high-stiffness composite reflective film as claimed in claim 2, it is characterized in that: described enhancement layer is the two-way stretch plastic foil.
5. high-stiffness composite reflective film as claimed in claim 4, it is characterized in that: described enhancement layer is two-way stretch PET film.
6. high-stiffness composite reflective film as claimed in claim 5 is characterized in that: the material of described reflectance coating basic unit is PET;
Be mixed with in described PET with PET is inconsistent and become nuclear particle, sneak into into the PET master batch of nuclear particle after fusion plastification, curtain coating slab, two-way stretch, in the PET film, centered by becoming nuclear particle, form microvesicle.
7. high-stiffness composite reflective film as claimed in claim 6, it is characterized in that: described one-tenth nuclear particle is TiO 2 particles.
8. high-stiffness composite reflective film as claimed in claim 7, it is characterized in that: described TiO 2 particles is rutile titanium dioxide.
9. high-stiffness composite reflective film as claimed in claim 6, it is characterized in that: described adhesive layer is acrylate adhesive or polyurethane adhesive or epoxy adhesive or synvaren.
10. high-stiffness composite reflective film as claimed in claim 9, it is characterized in that: described adhesive layer is acrylate adhesive.
Priority Applications (1)
| 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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| 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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| CN103454701A true CN103454701A (en) | 2013-12-18 |
| CN103454701B CN103454701B (en) | 2016-04-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675965A (en) * | 2013-12-19 | 2014-03-26 | 南京兰埔成新材料有限公司 | Micro-foaming polyester reflecting film |
| CN104635285A (en) * | 2015-01-30 | 2015-05-20 | 宁波长阳科技有限公司 | High-stiffness coated reflecting film and preparation method thereof |
| CN106903958A (en) * | 2016-03-07 | 2017-06-30 | 宁波长阳科技股份有限公司 | One kind laminating reflectance coating and preparation method thereof |
| CN109425920A (en) * | 2017-08-16 | 2019-03-05 | 3M创新有限公司 | Reflective membrane |
| CN113917737A (en) * | 2021-12-13 | 2022-01-11 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103675965A (en) * | 2013-12-19 | 2014-03-26 | 南京兰埔成新材料有限公司 | Micro-foaming polyester reflecting film |
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| CN106903958A (en) * | 2016-03-07 | 2017-06-30 | 宁波长阳科技股份有限公司 | One kind laminating reflectance coating and preparation method thereof |
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| CN109425920A (en) * | 2017-08-16 | 2019-03-05 | 3M创新有限公司 | Reflective membrane |
| CN113917737A (en) * | 2021-12-13 | 2022-01-11 | 荣耀终端有限公司 | Reflection paper, backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN103454701B (en) | 2016-04-06 |
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