CN208700940U - A kind of reflectance coating - Google Patents
A kind of reflectance coating Download PDFInfo
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- CN208700940U CN208700940U CN201820030234.4U CN201820030234U CN208700940U CN 208700940 U CN208700940 U CN 208700940U CN 201820030234 U CN201820030234 U CN 201820030234U CN 208700940 U CN208700940 U CN 208700940U
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Abstract
The utility model relates to the reflective film material technical fields of backlight LCD, while being also covered by the field for needing similar reflectance coating, specifically, are related to a kind of black reflectance coating of the dirty high brightness silver of slim anti-finger of high reliability.In order to solve the problems, such as that warpage is serious after the black reflectance coating reliability of existing high silver lustre, the utility model provides a kind of reflectance coating.The reflectance coating successively includes hardening coat, priming coat, oxygen waterproof protective layer, Ag layers, substrate layer, Al layers and ink layer.The surface of reflectance coating provided by the utility model has high rigidity, excellent wearability, excellent soil resistance, solves the existing black reflectance coating of high silver lustre and is easily scratched by light guide plate, silver layer is caused to be oxidized, so that backlight luminance be caused to reduce even completely black problem；Reflectance coating provided by the utility model is prepared using individual substrate simultaneously, and warpage is serious after solving the problems, such as finished product reliability.
Description
Technical field
The utility model relates to the reflective film material technical fields of backlight LCD, while being also covered by the similar reflectance coating of needs
Field be specifically related to a kind of black reflectance coating of the dirty high brightness silver of the slim anti-finger of high reliability.
Background technique
LCD is non-luminescent property display technology device, it is necessary to could show image using backlight.Therefore, backlight module
Development plays the role of the development of display vital.With present liquid crystal display towards ultrathin mode into
Row development, backlight module similarly towards light, thin, low-power consumption, high brightness, low cost on developed.
Backlight module is mainly assembled by LED light source, lampshade, reflectance coating, light guide plate, diffusion barrier, brightness enhancement film and outline border etc.
It forms.The main function of reflectance coating is will to leak out the light high efficiency of light guide plate bottom and reflect without loss, to reduce light
Consume reduces electricity consumption, improves the light saturation degree of liquid crystal display.Therefore, the thickness of reflectance coating is reduced, reflectance coating is reduced and trusts
Property after warpage, improve reflectance coating assembling yield become important research topic.
The black reflectance coating of silver used at present, is belonged to and is prepared using compound technique, the shrinking percentage of two layers of substrate layer
Difference will largely will affect the warpage after the black reflectance coating reliability of silver.Meanwhile as the following machine is towards slim hair
Exhibition, it is existing with a thickness of 80 or 75 μm on the market, it is subsequent to will be unable to meet the needs of client.Therefore, a kind of high reliability is prepared
There are its necessity for the slim dirty high black reflectance coating of silver lustre of anti-finger.
Summary of the invention
In order to solve the problems, such as that warpage is serious after the black reflectance coating reliability of existing high silver lustre, the utility model provides a kind of anti-
Penetrate film.The surface of reflectance coating provided by the utility model has high rigidity, excellent wearability, excellent soil resistance, solves
The existing black reflectance coating of high silver lustre is easily scratched by light guide plate, and silver layer is caused to be oxidized, so that it is even complete to cause backlight luminance to reduce
Black problem；Reflectance coating provided by the utility model is prepared using individual substrate simultaneously, and warpage is tight after solving finished product reliability
The problem of weight.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solutions:
The utility model provides a kind of reflectance coating, and the reflectance coating successively includes hardening coat, priming coat, oxygen waterproof guarantor
Sheath (coating layers of Over), Ag layers, substrate layer, Al layers and ink layer.
The reflectance coating is also known as the dirty high black reflectance coating of silver lustre of the slim anti-finger of high reliability.
The reflectance coating only includes one layer of substrate layer.
The reflectance coating is by hardening coat, priming coat, oxygen waterproof protective layer (coating layers of Over), Ag layers, substrate
Layer, Al layers and ink layer composition.
The hardening coat is also known as the dirty hardening coat of anti-finger, the dirty hardened layer of anti-finger, and ink layer is also known as anti-finger sump oil ink
Layer.
Compared to other compound silver reflectance coatings, reflectance coating provided by the utility model belongs to individual silver-colored reflectance coating.
Further, during the preparation process, the hardening coat is first configured to coating fluid.
The coating fluid is also known as hardening bath.
Further, the coating fluid of the hardening coat includes acrylic ester prepolymer, and acrylate monomer is light-initiated
Agent, fluorine element additive and organic solvent.
Fluorine element additive is also referred to as fluorine auxiliary agent.
Under UV lamp irradiation rapid polymerization occurs for the coating fluid of the anti-finger dirt hardening coat, so that fluoride (fluorine element
Additive) matrix resin surface is floated on, to provide the anti-smoothness and soil resistance for referring to dirty hardening coat surface, acrylate is pre-
Functional group content can have a major impact the hardness of coating surface in polymers and monomer, and then influence the resistance to of the dirty hardening coat of anti-finger
Grind characteristic.
Further, the material of the priming coat is selected from the group of one of acrylic resin or polyurethane or the two
It closes.
Further, the material of the priming coat in aqueous polyurethane, solvent borne polyurethane, acrylic system one
Kind or at least two combination.
Further, the material of the oxygen waterproof protective layer is selected from acrylate polymer.
Further, the material of the oxygen waterproof protective layer is selected from one of acrylic system.
Further, it is prepared by the way of physical vapour deposition (PVD) for described Ag layers.
Further, the material of the substrate layer is in polycarbonate (PC), polyethylene terephthalate (PET)
One kind or combination of the two.
Further, the preferred polyethylene terephthalate of the material of the substrate layer (PET).
Further, the PET base material, using low-shrinkage transparent substrate.
Further, the ink layer, is prepared by the way of silk-screen.
Further, Ag layers with a thickness of 30-80nm, substrate layer with a thickness of 25-75 μm, Al layers with a thickness of 0-
60nm, ink layer with a thickness of 0.5-1.5 μm.
Hardening coat with a thickness of 4 μm, priming coat with a thickness of 0.1 μm, oxygen waterproof protective layer with a thickness of 0.2 μm.
By above-mentioned anti-finger dirty hardening coat, priming coat, oxygen waterproof protective layer, Ag layers, pet layer, Al layers and ink layer
Thickness limit within the above range, has the yield of warpage, assembling after the final black reflectance coating reliability of high silver lustre more excellent
Control property.
Further, Ag layers of thickness is preferably 40-60nm.
Further, Ag layers of thickness is preferably 50nm.
Further, the thickness of PET base material layer is preferably 50-75 μm.
Further, Al layers of thickness is preferably 20-30nm.
Further, Al layers of thickness is preferably 30nm.
Further, the thickness of ink layer is preferably 0.7-1 μm.
The ink layer is prepared by way of screen printing ink.
Further, the silk-screen number of the ink is 2-6 times.
Further, the silk-screen number of the ink is 3-4 times.
Further, the angularity when reflectance coating produces offline is 0-1mm, and the angularity after reliability is 0-3mm,
Reflectivity > 96.0%.
The reflectivity refers to reflectivity when reflectance coating produces offline.
Further, the anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resins of 30 parts by weight
Prepolymer, 18 parts by weight, three official's polyurethane acrylic resin prepolymer, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight
Photoinitiator (photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is second
Acetoacetic ester.
The utility model also provides a kind of method for preparing reflectance coating, the described method comprises the following steps:
(1) it is first pre-processed using high transparency substrate, is then deposited Ag layers in the one side of substrate；
(2) oxygen waterproof protective layer is coated in Ag layer surface；
(3) it is coated with one layer of priming coat in oxygen waterproofing protection layer surface, the coating for subsequent curing liquid；
(4) it is coated with hardening bath on priming coat, obtains hardening coat after solidification；
(5) in the another side evaporating Al layer of PET；
(6) it carries out covering protective film on hardening coat surface；
(7) in Al layers of printing ink by the way of silk-screen printing；
(8) slitting is carried out, shipment is packed.
The ink is also known as anti-finger sump oil ink.
Compared with the existing high black reflectance coating of silver lustre, the surface of reflectance coating provided by the utility model has high rigidity, excellent
Different wearability, excellent soil resistance, simultaneously because this product is non-composite film, angularity≤3mm after material reliability, instead
Penetrate rate > 96.0%.
Reflectance coating provided by the utility model realizes following technical effect:
1, after silver layer face is coated with anti-fingers dirt hardened layer, the characteristics of high-wearing feature, high rigidity may be implemented, it can be avoided and lead
Scuffing, scratch of the tabula rasa to reflector plate surface, play the role of protecting silver-colored reflectance coating, while also not scratching, scratching light guide plate, have
There is high reliability；
2, the anti-mode for referring to sump oil ink is republished after aluminium layer is deposited in PET base material layer, there is high soil resistance, GOOD TASTE
Feature can reduce the influence for material yield such as finger pollution in assembling process；
3, the method for preparing reflectance coating using individual substrate reduces material and produces the warpage after offline and reliability, keeps away
Exempted from present on the market the difficult to govern control of composite material warpage the problem of, to further increase the yield of complete machine assembling.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of reflectance coating provided by the utility model；
Fig. 2 is the structural schematic diagram of the existing common black reflectance coating of high silver lustre of aluminizing；
Fig. 3 is the structural schematic diagram of the black reflectance coating of high silver lustre of existing common tunica albuginea coating；
Fig. 4 is a kind of structural schematic diagram of reflectance coating semi-finished product provided by the utility model.
Wherein:
10: the dirty hardening coat of anti-finger plays wear-resisting, anti scuffing,
20: priming coat,
30: oxygen waterproof protective layer,
40:Ag layers,
50:PET substrate layer,
60:Al layers,
70: ink layer,
80:PET substrate layer or tunica albuginea substrate containing barium sulfate,
90: hot dry glue composite layer.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the personnel of correlative technology field better understand the utility model patent, below in conjunction with the utility model
Examples and drawings, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that described
The only embodiment of the utility model a part, rather than whole embodiments.Based on the embodiments of the present invention, ability
This all should belong in the those of ordinary skill in domain every other embodiment obtained without making creative work
The range of utility model protection.
It should be noted that in the specification and claims of the utility model and above-mentioned attached drawing term " first ",
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so as to the utility model embodiment described herein.Furthermore term " includes "
" having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or list
The process, method, system, product or equipment of member those of are not necessarily limited to be clearly listed step or unit, but may include not having
There are other step or units being clearly listed or intrinsic for these process, method, system, product or equipment.
Reflectance coating provided by the utility model is further illustrated below in conjunction with embodiment.
The preparation method of reflectance coating provided by the utility model the following steps are included:
(1) it is first pre-processed using high transparency substrate, is then deposited Ag layers in the one side of substrate；
(2) oxygen waterproof protective layer is coated in Ag layer surface；
(3) it is coated with one layer of priming coat in oxygen waterproofing protection layer surface, the coating for subsequent curing liquid；
(4) it is coated with hardening bath on priming coat, obtains hardening coat after solidification；
(5) in the another side evaporating Al layer of PET；
(6) it carries out covering protective film on hardening coat surface；
(7) in Al layers of printing ink by the way of silk-screen printing；
(8) slitting is carried out, shipment is packed.
Further, the silk-screen number of the ink is 2-6 times.
Reflectance coating provided by the utility model is tested for the property in accordance with the following methods:
Silver-colored face reflectivity: according to the standard of NIST 2054, light is divided using Agilent Cary5000 UV, visible light near-infrared
Reflectivity of each silver-colored reflectance coating of degree measurement examination at 550nm.Silver face reflectivity refers to that surface layer is that anti-finger is dirty hard in reflectance coating
Change laminated reflectivity.
Adhesive force: according to the standard of GB 1720-1979 " paint film adhesion measuring method ", the adhesive force of test oil layer of ink,
In 100/100 represent not demoulding, 90/100 represents and falls off 10%.
Wearability: each hardened layer is tested according to HG/T 4303-2012 " Surface hardened layer polyester film wearability measuring method "
It is wear-resisting lossy, using 0000# steel wool, 1000gf/cm2Weight bearing, by detecting abrasion resistance of the membrane surface without scuffing
The limit, to judge the abrasion resistant effect of film.
Water contact angle: according to the standard of GB/T 30693-2014 " measurement of plastic film and water contact angle ", anti-finger is tested
The surface water contact angle of dirty hardened layer, ink layer.Water contact angle is bigger, and the dirty ability of anti-finger is stronger.
Warpage is tested after reliability: in temperature being 70 DEG C by reflectance coating, the high temperature and humidity condition of humidity 95% places 500h
After tested, warpage test specification be 10cm × 10cm, depth of camber test tested using feeler gauge.
Black flour reflectivity: according to the standard of NIST 2054, light is divided using Agilent Cary5000 UV, visible light near-infrared
Degree measurement tries its reflectivity at 550nm.Black film face reflectivity refers to that surface layer in reflectance coating is laminated anti-of ink
Penetrate rate.
Black flour taste: being observed by the naked eye using reflected light, and judgment criteria is that superbright is black, and brilliant black is mute black, super mute black.
Processing complexity: mainly on material machine flattening etc. factors consider, judgment criteria be high > higher > in > compared with
Low > is low, wherein high represent difficulty of processing height, but does not represent and cannot produce product.
Assembling yield: the non-defective unit that the black reflectance coating of silver for being 5.5 cun according to 1000 specifications is assembled into backlight accounts in total quantity
Ratio.
Pencil hardness: according to the standard of GB 1720-1979 " paint film adhesion measuring method ".
Warpage test: the specification of test is 10cm × 10cm, tests depth of camber using feeler gauge.
Embodiment 1
As shown in figure 4, the present embodiment provides a kind of reflectance coating semi-finished product, the semi-finished product include hardening coat, priming coat,
Oxygen waterproof protective layer, Ag layers and substrate layer.
Wherein it is anti-refer to dirty hardened layer 10 with a thickness of 4 μm, priming coat 20 with a thickness of 0.1 μm, oxygen waterproof protective layer 30
With a thickness of 0.2 μm, Ag layer 40 with a thickness of 30nm, PET base material layer 50 with a thickness of 50 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of the priming coat is acrylic.
The material of the oxygen waterproof protective layer is acrylic.
Embodiment 2
As embodiment 1 provide reflectance coating semi-finished product, difference be Ag layer 40 with a thickness of 40nm.
Embodiment 3
As embodiment 1 provide reflectance coating semi-finished product, difference be Ag layer 40 with a thickness of 50nm.
Embodiment 4
As embodiment 1 provide reflectance coating semi-finished product, difference be Ag layer 40 with a thickness of 60nm.
Embodiment 5
As embodiment 1 provide reflectance coating semi-finished product, difference be Ag layer 40 with a thickness of 80nm.
Embodiment 6
The utility model provides a kind of reflectance coating, and the reflectance coating successively includes hardening coat, priming coat, oxygen waterproof guarantor
Sheath, Ag layers, substrate layer, Al layers and ink layer.
Wherein it is anti-refer to dirty hardened layer 10 with a thickness of 4 μm, priming coat 20 with a thickness of 0.1 μm, oxygen waterproof protective layer 30
With a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, PET base material layer 50 with a thickness of 50 μm, Al layer 60 with a thickness of 0nm, i.e.,
Without Al layers, the print pass of ink layer 70 is 2 times, with a thickness of 0.5 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of the priming coat is acrylic.
The material of the oxygen waterproof protective layer is acrylic.
Embodiment 7
As embodiment 6 provide reflectance coating, difference be Al layer 60 with a thickness of 20nm.
Embodiment 8
As embodiment 6 provide reflectance coating, difference be Al layer 60 with a thickness of 30nm.
Embodiment 9
As embodiment 6 provide reflectance coating, difference be Al layer 60 with a thickness of 60nm.
Embodiment 10
Such as the reflectance coating that embodiment 6 provides, wherein anti-finger dirt hardened layer 10 is with a thickness of 4 μm, priming coat 20 is with a thickness of 0.1 μ
M, oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, PET base material layer 50 with a thickness of 50 μm, Al
Layer 60 with a thickness of 30nm, the number that ink layer 70 prints is 3 times, i.e., with a thickness of 0.7 μm.
Embodiment 11
Such as the reflectance coating that embodiment 9 provides, difference is that 70 print pass of ink layer is 4 times, i.e., with a thickness of 1.0 μm.
Embodiment 12
Such as the reflectance coating that embodiment 9 provides, difference is that 70 print pass of ink layer is 6 times, i.e., with a thickness of 1.5 μm.
Embodiment 13
Such as the reflectance coating that embodiment 6 provides, wherein it is anti-refer to dirty hardened layer 10 with a thickness of 4 μm, priming coat 20 with a thickness of
0.1 μm, oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, PET base material layer 50 with a thickness of 25 μ
M, Al layer 60 with a thickness of 30nm, the number that ink layer 70 prints is 4 times, i.e., with a thickness of 1.0 μm.
Embodiment 14
As embodiment 13 provide reflectance coating, difference be PET base material layer 50 with a thickness of 38 μm.
Embodiment 15
As embodiment 13 provide reflectance coating, difference be PET base material layer 50 with a thickness of 75 μm.
The conventional black reflectance coating of high silver lustre visible on the market is as shown in Fig. 2, belong to composite material, comprising Over coating
Layer 30, Ag layer 40, PET base material layer 50, hot dry glue composite layer 90, PET base material layer 80, Al layer 60 and ink layer 70.
In order to compare individual black reflectance coating (reflectance coating provided by the utility model) of silver and the black reflectance coating (comparative example of composite silver
The reflectance coating of offer) performance, the warpage situation especially after reliability, we select shrinking percentage close, and thickness is different
PET base material (MD≤- 0.20%, TD≤- 0.04%) and tunica albuginea (containing barium sulfate) substrate.
Comparative example 1
As shown in Fig. 2, the black reflectance coating of high silver lustre that comparative example 1 provides includes oxygen waterproof protective layer, Ag layers, PET base material
Layer, hot dry glue composite layer, PET base material layer, Al layers and ink layer.
Wherein oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, the thickness of PET base material layer 50
Degree is 25 μm, hot dry glue composite layer 90 with a thickness of 4 μm, PET base material layer 80 with a thickness of 50 μm, Al layer 60 with a thickness of
30nm, the number that ink layer 70 prints are 4 times, are formulated the ink coating fluid using no fluorine element auxiliary agent, i.e., with a thickness of 1.0 μm.
The material of oxygen waterproof protective layer is acrylic.
Comparative example 2
Such as the black reflectance coating of high silver lustre that comparative example 1 provides, wherein oxygen waterproof protective layer 30 is with a thickness of 0.2 μm, Ag layer 40
With a thickness of 50nm, PET base material layer 50 with a thickness of 36 μm, hot dry glue composite layer 90 with a thickness of 4 μm, PET base material layer 80
With a thickness of 36 μm, Al layer 60 with a thickness of 30nm, the number that ink layer 70 prints is 4 times, is formulated using no fluorine element auxiliary agent
Ink coating fluid, i.e., with a thickness of 1.0 μm.
Comparative example 3
As comparative example 1 provide the black reflectance coating of high silver lustre, wherein oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layers
40 with a thickness of 50nm, PET base material layer 50 with a thickness of 50 μm, hot dry glue composite layer 90 with a thickness of 4 μm, PET base material layer
80 with a thickness of 25 μm, Al layer 60 with a thickness of 30nm, the number that ink layer 70 prints is 4 times, is formulated using no fluorine element auxiliary agent
Ink coating fluid, i.e., with a thickness of 1.0 μm.
Comparative example 4
As shown in figure 3, comparative example 5 provide the black reflectance coating of high silver lustre include oxygen waterproof protective layer, Ag layers, substrate layer,
Hot dry glue composite layer, tunica albuginea substrate layer and ink layer；The black reflectance coating of high silver lustre further includes hardening coat, priming coat.
Wherein it is anti-refer to dirty hardened layer with a thickness of 4 μm, priming coat with a thickness of 0.1 μm, the thickness of oxygen waterproof protective layer 30
Degree is 0.2 μm, Ag layer 40 with a thickness of 50nm, PET base material layer 50 with a thickness of 50 μm, hot dry glue composite layer 90 with a thickness of
4 μm, tunica albuginea substrate layer (containing barium sulfate material) 80 with a thickness of 25 μm, the number that ink layer 70 prints is 4 times, and formula is adopted
With the ink coating fluid of no fluorine element auxiliary agent, i.e., with a thickness of 1.0 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of priming coat is acrylic.
The material of waterproof protective layer is acrylic.
Comparative example 5
Such as the black reflectance coating of high silver lustre that comparative example 4 provides, wherein it is anti-refer to dirty hardened layer with a thickness of 4 μm, the thickness of priming coat
Degree is 0.1 μm, oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, the thickness of PET base material layer 50
Be 36 μm, hot dry glue composite layer 90 with a thickness of 4 μm, tunica albuginea substrate layer (containing barium sulfate material) 80 with a thickness of 36 μm,
The number that ink layer 70 prints is 4 times, is formulated the ink coating fluid using no fluorine element auxiliary agent, i.e., with a thickness of 1.0 μm.
Comparative example 6
Such as the black reflectance coating of high silver lustre that comparative example 4 provides, wherein it is anti-refer to dirty hardened layer with a thickness of 4 μm, the thickness of priming coat
Degree is 0.1 μm, oxygen waterproof protective layer 30 with a thickness of 0.2 μm, Ag layer 40 with a thickness of 50nm, the thickness of PET base material layer 50
Be 25 μm, hot dry glue composite layer 90 with a thickness of 4 μm, tunica albuginea substrate layer (containing barium sulfate material) 80 with a thickness of 50 μm,
The number that ink layer 70 prints is 4 times, is formulated the ink coating fluid using no fluorine element auxiliary agent, i.e., with a thickness of 1.0 μm.
Comparative example 7
Such as the black reflectance coating of high silver lustre that comparative example 1 provides, the reflectance coating further includes the dirty hardened layer of anti-finger and priming coat, is resisted
Refer to dirty hardened layer with a thickness of 4 μm, priming coat with a thickness of 0.1 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of priming coat is acrylic.
Comparative example 8
Such as the black reflectance coating of high silver lustre that comparative example 2 provides, the reflectance coating further includes the dirty hardened layer of anti-finger and priming coat, is resisted
Refer to dirty hardened layer with a thickness of 4 μm, priming coat with a thickness of 0.1 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of priming coat is acrylic.
Comparative example 9
Such as the black reflectance coating of high silver lustre that comparative example 3 provides, the reflectance coating further includes the dirty hardened layer of anti-finger and priming coat, is resisted
Refer to dirty hardened layer with a thickness of 4 μm, priming coat with a thickness of 0.1 μm.
The anti-coating fluid for referring to dirty hardening coat includes six official's polyurethane acrylic resin prepolymers of 30 parts by weight, and 18
Three official's polyurethane acrylic resin prepolymer of parts by weight, 12 parts by weight, three official's acrylate monomer, 3.6 parts by weight photoinitiators
(photoinitiator 184), 0.3 parts by weight fluorine auxiliary agent and the mixing of 40 weight parts organic solvents.Wherein, organic solvent is ethyl acetate.
The material of priming coat is acrylic.
The reflecting properties testing result for the reflectance coating semi-finished product that 1 embodiment 1-5 of table is provided
| Performance | Silver-colored face reflectivity |
| Embodiment 1 | 90.34% |
| Embodiment 2 | 93.36% |
| Embodiment 3 | 96.57% |
| Embodiment 4 | 96.79% |
| Embodiment 5 | 96.83% |
From the comparing result in table 1 it can be found that silver layer reflectivity can increase with the increase of silver thickness, but such as
It is smaller for its reflectivity raising influence at 550nm even if increasing the thickness of silver layer for embodiment 3,4,5, that is, implement
Example 3, which has begun, reaches a relatively good value.
The main performance testing result for the reflectance coating that 2 embodiment 6-9 of table is provided
| Performance | Black flour reflectivity | Black flour taste | Adhesive force | Water contact angle |
| Embodiment 6 | 10.28% | Brilliant black | 60/100 | 104.23° |
| Embodiment 7 | 12.32% | Brilliant black | 90/100 | 104.34° |
| Embodiment 8 | 15.67% | Brilliant black | 100/100 | 104.35° |
| Embodiment 9 | 21.98% | Superbright is black | 100/100 | 104.29° |
From the comparing result in table 2 it can be found that the adhesive force of the reflectivity of black flour, taste and ink layer with Al layers
Thickness is closely bound up, and the reflectivity of black flour is gradually increased as Al layers of thickness increases, and in terms of adhesive force, likewise as Al
Thickness degree increases and increases.But at present on the market for client, this black product of silver, from taste it is upper for, prefer
It is mute black, in terms of the black flour reflectivity for, it is more lower better to be desirable to reflectivity.In embodiment 6-9, water contact angle is essentially identical,
It is unrelated with Al layers of thickness.Therefore, in the case where adhesive force is up to standard, the Al layer in embodiment 8 reaches above-described embodiment 8 and 9
One more figure of merit.
The main performance testing result for the reflectance coating that 3 embodiment 8 of table, embodiment 10-12 are provided
| Performance | Black flour reflectivity | Black flour taste | Adhesive force | Water contact angle |
| Embodiment 8 | 15.67% | Brilliant black | 100/100 | 104.35° |
| Embodiment 10 | 7.12% | Brilliant black | 100/100 | 106.12° |
| Embodiment 11 | 4.16% | It is mute black | 100/100 | 107.24° |
| Embodiment 12 | 3.89% | It is mute black | 100/100 | 107.32° |
From the comparing result in table 3 it can be found that the number of ink layer printing, the i.e. thickness of coating, with the black flour of material
Reflectivity, taste and water contact angle have direct relationship, when print pass is 2 times or 3 times, black flour reflectivity changes
Very big, taste aspect still belongs to brilliant black, embodies the essence of metallochrome, and when print pass is 4 times, black flour reflectivity reaches
4.16%, integrally taste is mute black, and water contact angle has also reached 107.24 ° simultaneously, further increases print pass, performance boost
Space is little.
The main performance testing result for the reflectance coating that 4 embodiment 11 of table, embodiment 13-15 are provided
From comparing result in table 4 it can be found that influence of the selection of substrate layer thickness for reflectivity in the black reflectance coating of silver
Substantially do not have；The influence of warpage when for producing offline, the thin substrate of thickness, angularity when producing offline is bigger, reliability
Afterwards, the variation of warpage is all not much different substantially, in reasonable range (≤3mm).In view of current machine be related to slimming and
Process the variation of complexity, embodiment 11,15 is preferably scheme relatively.
The main performance detection for the black reflectance coating of high silver lustre that the reflectance coating and comparative example 1-9 that 5 embodiment 15 of table provides provide
As a result
Comparing result from table 5, comparative example 1,7 or 2,8 or 3,9 find that silver layer face has one layer of anti-finger dirt hardened layer,
Reflectance coating can be effectively improved with the wearability between light guide plate, to effectively improve the assembling yield of material.From embodiment 15
With comparative example 4-9 it can be found that the black reflectance coating of silver provided by the utility model includes individual substrate, silver provided by the utility model
Warpage is better than the compound high silver lustre reflectance coating of comparative example 4-9 offer after warpage when producing offline and reliability of black reflectance coating；
It is compared to the PET base material aluminized simultaneously, using the tunica albuginea substrate containing barium sulfate drawing and forming, warpage is more difficult to manage, and trusts
Property after warpage it is more serious, embodiment 15 provide reflectance coating have further raising for subsequent assembling yield, it is especially right
In the demanding machine of warpage.
The above is only the preferred embodiments of the utility model patent, are not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of reflectance coating, which is characterized in that the reflectance coating successively include hardening coat, priming coat, oxygen waterproof protective layer,
Ag layers, substrate layer, Al layers and ink layer.
2. reflectance coating according to claim 1, which is characterized in that the reflectance coating is prevented by hardening coat, priming coat, oxygen
Water conservation layer, Ag layers, substrate layer, Al layers and ink layer composition.
3. reflectance coating according to claim 2, which is characterized in that the substrate layer is one layer of substrate layer.
4. reflectance coating according to claim 1, which is characterized in that described Ag layers with a thickness of 30-80nm.
5. reflectance coating according to claim 1, which is characterized in that the substrate layer with a thickness of 25-75 μm.
6. reflectance coating according to claim 1, which is characterized in that described Al layers with a thickness of 0-60nm.
7. reflectance coating according to claim 1, which is characterized in that the ink layer with a thickness of 0.5-1.5 μm.
8. reflectance coating according to claim 1, which is characterized in that the angularity when reflectance coating produces offline is 0-
1mm, the angularity after reliability are 0-3mm, reflectivity > 96.0%.
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|---|---|---|---|
| CN201820030234.4U CN208700940U (en) | 2018-01-09 | 2018-01-09 | A kind of reflectance coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820030234.4U CN208700940U (en) | 2018-01-09 | 2018-01-09 | A kind of reflectance coating |
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| CN208700940U true CN208700940U (en) | 2019-04-05 |
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ID=65912249
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| CN201820030234.4U Active CN208700940U (en) | 2018-01-09 | 2018-01-09 | A kind of reflectance coating |
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| Country | Link |
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| CN (1) | CN208700940U (en) |
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2018
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