CN204116635U - A kind of novel sclerosis PET white reflection film - Google Patents
A kind of novel sclerosis PET white reflection film Download PDFInfo
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- CN204116635U CN204116635U CN201420273948.XU CN201420273948U CN204116635U CN 204116635 U CN204116635 U CN 204116635U CN 201420273948 U CN201420273948 U CN 201420273948U CN 204116635 U CN204116635 U CN 204116635U
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Abstract
The utility model discloses a kind of novel sclerosis PET white reflection film, comprises hardened layer, separation layer and PET and reflects base membrane layer; Described PET reflects base membrane layer and comprises foaming layer, the first pet sheet layer and the second pet sheet layer, first pet sheet layer and the second pet sheet layer are compounded in the upper and lower surface of PET foaming layer respectively, spherical microvesicle is evenly distributed with in PET foaming layer, spherical microbubble diameter is 3 ~ 10 microns, voidage 30 ~ 60%, the density of spherical microvesicle is 30000 ~ 60,000 ten thousand/cubic centimetre; Described hardened layer is compounded on the outside surface of the first pet sheet layer; Described separation layer is compounded on the outside surface of the second pet sheet layer; The thickness that described PET reflects base membrane layer is 100 ~ 400 microns.The utility model novel sclerosis PET white reflective film density is light, light transmittance is low, shielding and whiteness is good, anti tear and the advantage such as folding resistance is good.
Description
Technical field
The utility model relates to a kind of novel sclerosis PET white reflection film.
Background technology
The development of backlight derives from the development of liquid crystal module.Liquid crystal self can not be luminous, and LCD itself does not possess luminous characteristic yet, and need lighting source, it belongs to backlight display device.The image-forming principle of LCD screen is that liquid crystal molecule can twist after electrifying electrodes, thus the light of backlight module can be passed through and realizes luminescence by after the electrifying electrodes in panel.Backlight (Backlight) is namely to provide the optical module of a back side light source in LCD display product.Thus, the quality of backlight determines the important parameters such as the brightness of LCDs, emergent light uniformity coefficient, color range, determines the illumination effect of LCDs to a great extent.
The principle of work of conventional LED backlight is that pointolite is become area source.Different according to method pointolite being become area source, conventional LED backlight can be divided into bottom light and side light (comprising common side backlight, CCFL, color screen backlight) two kinds.
The major optical diaphragm of LCD backlight system has reflectance coating, diffusion barrier, anti-reflection film etc.The effect of reflectance coating is reflected back as far as possible efficiently in system by the light exposed bottom light guide plate, improves the utilization factor of light, reduces energy loss.
But general reflectance coating is owing to foaming inside, and skin hardness significantly declines, causes it easily to produce in backlight module assembling process and scratch or cough up wound, make following process yield rate degradation.How to improve the scratch resistance on reflectance coating surface, especially on the basis keeping the original reflectivity of reflectance coating, above-mentioned purpose is realized, thus improving reflectance coating surface scratch resistance capability, the homogeneity realizing reflected light briliancy is backlight module field important topic urgently to be resolved hurrily.
Utility model content
The utility model newly provides a kind of novel sclerosis PET white reflection film.
For solving the problems of the technologies described above, this real utility model adopts following technical scheme:
A kind of novel sclerosis PET white reflection film, comprises hardened layer, separation layer and PET and reflects base membrane layer; Described PET reflects base membrane layer and comprises foaming layer, the first pet sheet layer and the second pet sheet layer, first pet sheet layer and the second pet sheet layer are compounded in the upper and lower surface of PET foaming layer respectively, spherical microvesicle is evenly distributed with in PET foaming layer, spherical microbubble diameter is 3 ~ 10 microns, voidage 30 ~ 60%, the density of spherical microvesicle is 30000 ~ 60,000 ten thousand/cubic centimetre; Described hardened layer is compounded on the outside surface of the first pet sheet layer; Described separation layer is compounded on the outside surface of the second pet sheet layer; The thickness that described PET reflects base membrane layer is 100 ~ 400 microns.
The outside surface of above-mentioned first pet sheet layer and the second pet sheet layer refer to respectively the first pet sheet layer and the second pet sheet layer not with the one side of PET foaming layer compound.Above-mentioned first pet sheet layer is use face, and the second pet sheet layer is the reflecting surface back side.
Above-mentioned PET reflects base membrane layer and adopts three-layer co-extruded bidirectional extending method to be prepared from, and diaphragm inner homogeneous distributes spherical spherical microvesicle.
Above-mentioned novel sclerosis PET white reflection film, on the basis ensureing reflectivity, improves the scraping and wiping resistance performance of film.
Separation layer comprises bonding layer by layer and be dispersed in spherical shape organic fine particles in bonding coat, and wherein, the thickness of separation layer is 2 ~ 10 microns, and the particle diameter of spherical shape organic fine particles is 2 ~ 5 microns.Products obtained therefrom can be made like this to have Surface hardened layer and isolation effect simultaneously, and have that density is light, light transmittance is low, shielding and whiteness is good, anti tear and the advantage such as folding resistance is good.
Preferably, the thickness of separation layer is 4 ~ 8 microns, and the particle diameter of spherical shape organic fine particles is 3 ~ 4 microns; Further preferably, the thickness of separation layer is 5 microns, and the particle diameter of spherical shape organic fine particles is 3 ~ 4 microns.
The preparation of separation layer also adopts coating process to prepare, and wherein, spherical shape organic fine particles is close-packed arrays structure in bonding coat.
Web coatable mode is preferably taked in the preparation of above-mentioned separation layer, and drying mode is oven for drying, and bake out temperature is 80 ~ 110 DEG C, and curing mode is heat curing, and producing linear speed is 10 ~ 30 ms/min.
The thickness of above-mentioned hardened layer is 2 ~ 10 microns.On the basis ensureing reflectivity, the scraping and wiping resistance performance of product can be ensured so simultaneously.Preferably, the thickness of hardened layer is 4 ~ 8 microns; Further preferably, the thickness of hardened layer is 4 ~ 5 microns.
The preparation method of above-mentioned hardened layer is for using hardening bath coating, and the skin hardness of hardened layer can reach 4H or higher.
The preparation of above-mentioned hardened layer preferably adopts takes web coatable mode to be coated with hardening bath, and drying mode is oven for drying, and bake out temperature is 70 ~ 90 DEG C, and curing mode is UV solidification, and producing linear speed is 10 ~ 50 ms/min.
Above-mentioned hardened layer can make reflectance coating surface produce hardening effect, separation layer plays and prevents PET reflectance coating basement membrane back surface layer from directly contacting backlight module frame, thus improve the adhesion strength on two top layers of reflectance coating, the coating of hardened layer simultaneously makes reflectance coating surface more gloss, face glossiness is increased to 60 ~ 70GS after coating by 30 ~ 40GS before being coated with, and the reflecting film reflects rate applying above-mentioned hardened layer improves 1 ~ 2 unit on the original basis.
Preferably, in PET foaming layer, spherical microbubble diameter is 5 ~ 8 microns, voidage 40 ~ 50%, and the density of spherical microvesicle is 40000 ~ 50,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 200 ~ 300 microns.The density that product is less and high reflectance can be ensured further like this.
Further preferably, in PET foaming layer, spherical microbubble diameter is 6 ~ 7 microns, voidage 43 ~ 48%, and the density of spherical microvesicle is 43000 ~ 48,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 240 ~ 260 microns.
The NM technology of the utility model is prior art.
The utility model novel sclerosis PET white reflection film, makes optical reflectance coating surface on the basis not reducing original reflectivity, makes reflectance coating have very high skin hardness, have Surface hardened layer and isolation effect simultaneously, and has the light (0.9 ~ 1.2g/cm of density
3), low, the shielding of light transmittance and whiteness is good, anti tear and the advantage such as folding resistance is good, raw material sources and manufacture process can not cause environmental disruption and change simultaneously.
Accompanying drawing illustrates:
Fig. 1 is embodiment 1 novel sclerosis PET white reflection film structural representation.
In figure, 1 is hardened layer, and 2 is separation layer, and 3 is foaming layer, and 4 is the first pet sheet layer, and 5 is the second pet sheet layer, and 6 is spherical microvesicle, and 7 is spherical shape organic fine particles.
Embodiment
In order to understand the utility model better, illustrate content of the present utility model further below in conjunction with embodiment, but content of the present utility model is not only confined to the following examples.
Embodiment 1
Novel sclerosis PET white reflection film as shown in Figure 1, comprises hardened layer, separation layer and PET and reflects base membrane layer; Described PET reflects base membrane layer and comprises foaming layer, the first pet sheet layer and the second pet sheet layer, first pet sheet layer and the second pet sheet layer are compounded in the upper and lower surface of PET foaming layer respectively, spherical microvesicle is evenly distributed with in PET foaming layer, in PET foaming layer, spherical microbubble diameter is 6 microns, voidage 45%, the density of spherical microvesicle is 45,000 ten thousand/cubic centimetre; Described hardened layer is compounded on the outside surface of the first pet sheet layer; Described separation layer is compounded on the outside surface of the second pet sheet layer; The thickness that described PET reflects base membrane layer is 250 microns;
Separation layer comprises bonding coat and is dispersed in the spherical shape organic fine particles (heat curing crylic acid resin particle) in bonding coat, and the thickness of separation layer is 5 microns, and the particle diameter of spherical shape organic fine particles is 3 ~ 4 microns.The thickness of hardened layer is 5 microns.
Embodiment 2
Substantially the same manner as Example 1, difference is: the thickness of separation layer is 2 microns, and the particle diameter of spherical shape organic fine particles is 2 microns; The thickness of hardened layer is 4 microns; In PET foaming layer, spherical microbubble diameter is 5 microns, voidage 40%, and the density of spherical microvesicle is 40,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 200 microns.
Embodiment 3
Substantially the same manner as Example 1, difference is: the thickness of separation layer is 10 microns, and the particle diameter of spherical shape organic fine particles is 5 microns; The thickness of hardened layer is 10 microns; In PET foaming layer, spherical microbubble diameter is 8 microns, voidage 50%, and the density of spherical microvesicle is 50,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 300 microns.
In each embodiment, the preparation method of novel sclerosis PET white reflection film, comprises the following steps that order connects:
A adopts the method for three-layer co-extruded two-way stretch to prepare PET reflection base membrane layer;
Hardening bath is poured in ethyl acetate solvent by B, stirs and makes it to be uniformly dispersed; Base membrane layer coated side is reflected to PET and carries out surface corona process, make its surface tension reach 55 ~ 58 dyne;
The glue prepared in step B is added gluing groove by C, PET is reflected base membrane layer (A/B/A three-decker) and carries out coating operations as base material at corona surface, controls coating weight and coating uniformity well;
The PET being coated with hardening bath in step C is reflected base membrane layer feeding oven for drying by D makes it superficial drying, obtains the hardened layer that coating thickness is 2 ~ 10 microns;
White reflection film after oven drying is cured process through UV equipment by E, and pending completely rear i.e. rolling can obtain semi-manufacture, and half product structure is C/A/B/A, and wherein C layer is hardened layer, and A is the first pet sheet layer or the second pet sheet layer, and B is foaming layer;
The PET of coated hardened layer is reflected the backside coating last layer of base membrane layer with the spherical shape organic filler of bonding agent by F, and sends into baking oven and do heat curing process, makes it superficial drying solidification, obtains the separation layer that coating thickness is 2 ~ 10 microns.
The performance table of each embodiment products obtained therefrom of table 1.
| Performance | Hardness | Reflectivity (%) | Transmittance (%) | Folding resistance (excellent/bad) |
| Testing standard | GB/T6739-2006 | ASTMD1003 | GB/T2410-2008 | Range estimation |
| Embodiment 1 | 3H | 98.5 | 0.86 | Excellent |
| Embodiment 2 | 2H | 98 | 1.15 | Excellent |
| Embodiment 3 | 4H | 99.2 | 0.62 | Excellent |
Claims (9)
1.
oneplant novel sclerosis PET white reflection film, it is characterized in that: comprise hardened layer, separation layer and PET and reflect base membrane layer; Described PET reflects base membrane layer and comprises foaming layer, the first pet sheet layer and the second pet sheet layer, first pet sheet layer and the second pet sheet layer are compounded in the upper and lower surface of PET foaming layer respectively, spherical microvesicle is evenly distributed with in PET foaming layer, spherical microbubble diameter is 3 ~ 10 microns, voidage 30 ~ 60%, the density of spherical microvesicle is 30000 ~ 60,000 ten thousand/cubic centimetre; Described hardened layer is compounded on the outside surface of the first pet sheet layer; Described separation layer is compounded on the outside surface of the second pet sheet layer; The thickness that described PET reflects base membrane layer is 100 ~ 400 microns.
2. novel sclerosis PET white reflection film as claimed in claim 1, it is characterized in that: separation layer comprises bonding layer by layer and be dispersed in spherical shape organic fine particles in bonding coat, wherein, the thickness of separation layer is 2 ~ 10 microns, and the particle diameter of spherical shape organic fine particles is 2 ~ 5 microns.
3. novel sclerosis PET white reflection film as claimed in claim 2, it is characterized in that: the thickness of separation layer is 4 ~ 8 microns, the particle diameter of spherical shape organic fine particles is 3 ~ 4 microns.
4. novel sclerosis PET white reflection film as claimed in claim 3, it is characterized in that: the thickness of separation layer is 5 microns, the particle diameter of spherical shape organic fine particles is 3 ~ 4 microns.
5. the novel sclerosis PET white reflection film as described in claim 1-4 any one, is characterized in that: the thickness of hardened layer is 2 ~ 10 microns.
6. novel sclerosis PET white reflection film as claimed in claim 5, is characterized in that: the thickness of hardened layer is 4 ~ 8 microns.
7. novel sclerosis PET white reflection film as claimed in claim 5, is characterized in that: the thickness of hardened layer is 4 ~ 5 microns.
8. the novel sclerosis PET white reflection film as described in claim 1-4 any one, it is characterized in that: in PET foaming layer, spherical microbubble diameter is 5 ~ 8 microns, voidage 40 ~ 50%, the density of spherical microvesicle is 40000 ~ 50,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 200 ~ 300 microns.
9. novel sclerosis PET white reflection film as claimed in claim 8, it is characterized in that: in PET foaming layer, spherical microbubble diameter is 6 ~ 7 microns, voidage 43 ~ 48%, the density of spherical microvesicle is 43000 ~ 48,000 ten thousand/cubic centimetre, and the thickness that described PET reflects base membrane layer is 240 ~ 260 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273948.XU CN204116635U (en) | 2014-05-26 | 2014-05-26 | A kind of novel sclerosis PET white reflection film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273948.XU CN204116635U (en) | 2014-05-26 | 2014-05-26 | A kind of novel sclerosis PET white reflection film |
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| CN204116635U true CN204116635U (en) | 2015-01-21 |
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| CN201420273948.XU Expired - Fee Related CN204116635U (en) | 2014-05-26 | 2014-05-26 | A kind of novel sclerosis PET white reflection film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019435A (en) * | 2016-06-27 | 2016-10-12 | 安庆市奥立德光电有限公司 | Light diffusion plate for LED display screen |
-
2014
- 2014-05-26 CN CN201420273948.XU patent/CN204116635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019435A (en) * | 2016-06-27 | 2016-10-12 | 安庆市奥立德光电有限公司 | Light diffusion plate for LED display screen |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200526 |