CN106959480A - A kind of high briliancy composite reflective film - Google Patents
A kind of high briliancy composite reflective film Download PDFInfo
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- CN106959480A CN106959480A CN201710300104.8A CN201710300104A CN106959480A CN 106959480 A CN106959480 A CN 106959480A CN 201710300104 A CN201710300104 A CN 201710300104A CN 106959480 A CN106959480 A CN 106959480A
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- reflective film
- layer
- composite reflective
- briliancy
- high briliancy
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- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 239000004814 polyurethane Substances 0.000 claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 claims abstract description 26
- 238000005282 brightening Methods 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims description 44
- 239000002904 solvent Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229920005749 polyurethane resin Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 45
- 239000011248 coating agent Substances 0.000 abstract description 44
- 239000010408 film Substances 0.000 abstract description 30
- 239000002245 particle Substances 0.000 abstract description 22
- 238000001179 sorption measurement Methods 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- NPPQSCRMBWNHMW-UHFFFAOYSA-N Meprobamate Chemical compound NC(=O)OCC(C)(CCC)COC(N)=O NPPQSCRMBWNHMW-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to optical thin film, more particularly to a kind of high briliancy composite reflective film.In order to the reflectance coating briliancy for solving existing surface coated particle it is not enough the problem of, the present invention provides a kind of high briliancy composite reflective film.Described composite reflective film includes brightening structure layer, layer of polyurethane, reflective substrate successively, and described layer of polyurethane is coated on the surface of reflective substrate, and the surface of the layer of polyurethane, which makes, brightening structure layer, and described brightening structure layer has micro-prism structure.The high briliancy composite reflective film that the present invention is provided is by making brightening structure layer on layer of polyurethane surface, there is provided preferable anti-scratch performance and anti-adsorption, and the briliancy of reflectance coating is added while anti-adsorption function is reached, it is to avoid because reflectance coating briliancy caused by coated particle is lost.
Description
Technical field
The present invention relates to optical thin film, more particularly to a kind of high briliancy composite reflective film.
Background technology
Reflectance coating is applied in display backlight module, is the diaphragm for playing light compensation effect, its reflection to light
Ability plays key effect to the integral brightness and visual effect of display.At present, reflector plate market due to display gradually
60 cun, the oversizes such as 80 cun are increased to, the requirement to display integral brightness and light source mildness is also stepped up, and this is to anti-
Penetrate piece and propose higher requirement, therefore progressively occur in that the mode in reflector plate surface coated particle solves to go out during assembling
The problems such as existing absorption shadow, but the mode of coated particle would generally make reflector plate lose a certain degree of briliancy, this causes
The briliancy of large scale reflector plate becomes a subject matter.At present, the reflection film manufacturer such as toray, Japanese Supreme Being people is anti-
Piece is penetrated because reflection film base material briliancy itself is higher, even if also can still keeping higher briliancy after coated particle, and it is domestic
Expansion type BOPET reflector plates have certain gap in terms of base material briliancy or with Japanese producers, therefore pass through and be coated with increase
The briliancy of reflector plate becomes a new developing way.
In order to improve the problem of adsorbing shadow after reflector plate assembling, domestic most of producer on reflector plate surface by applying
The mode of cloth particle improves the roughness on reflectance coating surface, so as to form air barrier between reflector plate and LGP (light guide plate)
Layer, it is to avoid absorption shadow, but this way would generally reduce 1-5% reflector plate briliancy after coating, ultimately result in reflection
Piece briliancy performance in large-sized monitor is not enough.
Publication No. 103064139A (publication date：On April 24th, 2013) Chinese patent application disclose a kind of anti scuffing
Optical reflectance coating and preparation method thereof, its core technology be by reflectance coating surface coating flexible particle and non-flexible particle,
Flexible particle is adjusted simultaneously and uses big particle diameter, and non-flexible particle meets the purpose of anti-absorption simultaneously by the way of small particle, so
And this mode is limited due to the material of flexible particle, its refractive index between glue is difficult to match, and most causes at last after coating
Briliancy heavy losses；Publication No. 105109166A (publication date is on December 2nd, 2015) Chinese patent application discloses one
Kind anti-absorption application type reflection polyester film and preparation method thereof, its core technology be in reflectance coating surface coated particle,
The effect of anti-absorption is reached, this mode needs to be coated with substantial amounts of particle, to reach anti-adsorption effect, and number of particles is larger, meeting
Reflector plate surface is set to occur a large amount of unrestrained transmittings so that a large amount of light cannot be introduced into visual angular region, cause briliancy to be lost.
The content of the invention
In order to the reflectance coating briliancy for solving existing surface coated particle it is not enough the problem of, the present invention provides a kind of high briliancy and answered
Close reflectance coating.The high briliancy composite reflective film that the present invention is provided by layer of polyurethane surface make brightening structure layer there is provided
Preferable anti-scratch performance and anti-adsorption, and add while anti-adsorption function is reached the briliancy of reflectance coating, it is to avoid
Because reflectance coating briliancy caused by coated particle is lost.
In order to solve the above problems, the present invention uses following technical proposals.
The present invention provides a kind of high briliancy composite reflective film, and described composite reflective film includes brightening structure layer, gathered successively
Urethane layer, reflective substrate, described layer of polyurethane are coated on the surface of reflective substrate, and the surface of the layer of polyurethane is provided with increasing
Bright structure sheaf, described brightening structure layer has micro-prism structure.Further, the surface of the layer of polyurethane, which makes, blast
Structure sheaf.
The reflective substrate is also referred to as reflective substrate layer, substrate layer or reflection basement membrane.The reflective substrate can select existing
Some reflectance coatings.Polyurethane precoated shet is coated with existing reflectance coating surface.The one side coating of reflective substrate has polyurethane precoating
Layer.Polyurethane precoated shet is also referred to as layer of polyurethane.The effect of polyurethane precoated shet is increase no-solvent type ultraviolet-curing resin glue
The tack of water.The thickness of polyurethane precoated shet is 0.1-3 μm.
Further, in described high briliancy composite reflective film, described micro-prism structure is by some microprism bar groups
Into.
Further, described microprism bar is arranged in parallel.
Further, described microprism bar covers layer of polyurethane.
Further, in described high briliancy composite reflective film, the cross section of described microprism bar is triangle.Enter
One step, the drift angle of the triangle is fillet.The radius of the fillet is also referred to as corner radii.
Further, in described high briliancy composite reflective film, the height of described microprism bar (abbreviation microprism)
It it is 20-50 μm, the angle of drift angle is 90 °, and corner radii is 0-2.5 μm.
Further, the corner radii is 2-2.5 μm.
Further, in described high briliancy composite reflective film, the raw material of described brightening structure layer is no-solvent type
Ultraviolet-curing resin glue.
Further, in described high briliancy composite reflective film, described no-solvent type ultraviolet-curing resin glue
Refractive index is 1.53-1.56.Further, the refractive index of described no-solvent type ultraviolet-curing resin glue is 1.55-1.56.
Further, in described high briliancy composite reflective film, the height of described microprism bar is 44-50 μm, top
The angle at angle is 90 °, and corner radii is 2-2.5 μm.Foregoing technical scheme correspondence embodiment 16-18,25-27, relative luminance
In 103-106%, anti-adsorptivity is outstanding, and site is without scratch.
Further, the height of described microprism bar is 48-50 μm, and the angle of drift angle is 90 °, and corner radii is 2.5 μ
M, the refractive index of glue is 1.55-1.56.Foregoing technical scheme correspondence embodiment 26-27, relative luminance is 106%, anti-to inhale
Attached property is outstanding, and site is without scratch.
The present invention also provides a kind of method for preparing described high briliancy composite reflective film, and the preparation method includes following
Step：
(1) it is coated with a surface of reflective substrate after polyurethane resin glue, polyurethane resin glue curing and forms poly-
Urethane layer；
(2) no-solvent type ultraviolet-curing resin glue is coated with the surface of layer of polyurethane, utilizes structure roller formation microprism
Bar, forms brightening structure layer after solidification.
Further, the step of making brightening structure layer includes：By no-solvent type ultraviolet-curing resin glue application in poly-
The surface of urethane layer；Structure roller extrusion forming；High voltage mercury lamp radiation, solidifying and setting.
Further, using high voltage mercury lamp radiation brightening structure layer, its solidifying and setting is made.Further, described high pressure
The irradiation energy of mercury lamp reaches 450mj/cm2, the linear velocity of the coating line is 6-20m/min.
Due to doing blast micro-structural on reflectance coating surface, the cost of reflectance coating can be significantly increased, so existing reflectance coating
In preparation, the situation of micro-structural is not done on reflectance coating surface.
The easy scratch light guide plate of reflectance coating of existing surface coated particle, the high briliancy composite reflective film that the present invention is provided is difficult
Scratch light guide plate, with preferable scratch resistance.
The present invention on the reflectance coating surface of existing one side polyurethane precoated shet by way of making brightening structure so that increases
Air layer between bright structure peak plays a part of preventing that reflector plate from adsorbing with LGP, and by adjusting the top radius at structure peak,
Preferably anti-scratch performance is provided, is reflected due to the light that brightening structure is reflected to reflectance coating inside and surface, converged again
Utilize, improve the briliancy of reflectance coating, it is to avoid due to reflectance coating briliancy loss caused by coating.
Compared with existing coating reflectance coating, the high briliancy composite reflective film that provides of the present invention possess good anti-absorption,
Scratch resistance energy, is provided simultaneously with outstanding briliancy performance.
Brief description of the drawings
The structural representation for the composite reflective film that Fig. 1 provides for the present invention.
Embodiment：
With reference to embodiment and accompanying drawing, the invention will be further elaborated, and following examples are to the detailed of the present invention
Describe in detail bright, be not the restriction to claimed scope of the invention.Methods described is conventional method unless otherwise instructed.It is described
Raw material are commercially available prod unless otherwise instructed.
As shown in figure 1, the present invention provides a kind of high briliancy composite reflective film, the composite reflective film includes reflection film base material
3rd, layer of polyurethane 2 and micro-prism structure layer 1.
The high briliancy composite reflective film that the present invention is prepared, carries out performance test by the following method：
Relative luminance：Reflectance coating (the i.e. reflection base in the composite reflective film that embodiment 1-27 is provided provided with comparative example 1
Material) briliancy be 100%, calculate the relative luminance of embodiment 1-27 and comparative example 2.The computational methods of relative luminance are：(measure
Briliancy/comparative example 1 provide reflectance coating briliancy) × 100%.
Anti- absorption test：Reflectance coating sanction sample is assembled into 18.5 cun of backlights (side entering type), observes whether backlight has after lighting
Speck.Represent that the anti-adsorptivity of reflectance coating is poor if any speck, such as represent that the anti-adsorptivity of reflectance coating is outstanding without speck.Zero represents
The anti-adsorptivity of reflectance coating is outstanding；△ represents that the anti-adsorptivity of reflectance coating is general (there is local white point after assembling)；× represent anti-
The anti-adsorptivity for penetrating piece is poor (there is local hickie after assembling).
Anti-scratch test：Sample is cut into 10 × 10mm, by abrasion wear test machine, in PMMA printing light guide plate mesh point printings
Face rubs, counterweight weight 1000g, speed 10 times/min, after reciprocal 50 times, observes the abrasion condition of printing net-point, and zero represents net
Point is without scratch；△ represents the slight scratch in site；× represent the serious scratch in site.
The reflective substrate used in the composite reflective film that embodiment 1-27 is provided is the production of ningbo of china Chang Yang scientific ＆ technical corporation
Reflectance coating DJX300, the thickness of the reflective substrate is 300 μm.
Embodiment 1
A kind of high briliancy composite reflective film is provided, described composite reflective film include successively brightening structure layer, layer of polyurethane,
Reflective substrate, described layer of polyurethane is coated on the surface of reflective substrate, and the surface of the layer of polyurethane, which makes, brightening structure
Layer, described brightening structure layer has micro-prism structure.
Polyurethane precoated shet is prepared in the one side of reflective substrate, no-solvent type ultra-violet curing glue is (referred to as ultraviolet solid
Tensol) polyurethane coating surface is coated in, by engraved roll extrusion forming, utilize high voltage mercury lamp radiation no-solvent type ultra-violet curing
The structure of glue formation, makes it solidify to form brightening structure layer, the linear velocity of production line is 6-20m/min, high voltage mercury lamp radiation
Energy reaches 450mj/cm2.Finally give high briliancy composite reflective film.
Described brightening structure layer has micro-prism structure.Described micro-prism structure is made up of some microprism bars.Institute
The cross section for the microprism bar (abbreviation microprism) stated is triangle.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 2
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 3
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 4
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 5
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 6
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 7
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 8
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 9
Condition of molding such as embodiment 1.
The height of the microprism is 20 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 10
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 11
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 12
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 13
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 14
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 15
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 16
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 2 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 17
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 18
Condition of molding such as embodiment 1.
The height of the microprism is 44 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 19
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 20
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 21
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 0 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 22
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 23
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 24
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 1.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Embodiment 25
Condition of molding such as embodiment 1.
The height of the microprism is 48 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.53.
Embodiment 26
Condition of molding such as embodiment 1.
The height of the microprism is 48 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.55.
Embodiment 27
Condition of molding such as embodiment 1.
The height of the microprism is 50 microns, and the angle of drift angle is 90 °, and corner radii is 2.5 μm.
The refractive index of the ultra-violet curing glue is 1.56.
Comparative example 1
The reflectance coating DJX300 of ningbo of china Chang Yang scientific ＆ technical corporation production.
Comparative example 2
The reflectance coating of existing surface coated particle：The reflectance coating DJX300P of ningbo of china Chang Yang scientific ＆ technical corporation production.Belong to
Shipment amount is larger in the market, the preferable coated particle type reflectance coating of anti-scratch, anti-adsorption.
The performance test results for the reflectance coating that the comparative example 1-2 of table 1, embodiment 1-27 are provided
Comparative example 1 is uncoated reflective substrate, and comparative example 2 is the reflectance coating production of the good coated particle of Market Feedback
Product；As seen from the data in Table 1：Embodiment 1-9 anti-adsorptions are unstable and poor, and embodiment 16-18 and embodiment 25-27 possess
Preferable scratch resistance energy and anti-adsorption, further, embodiment 26-27 are lifted greatly in briliancy, are optimal case.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.It is every
In the impartial change done according to present invention and modification, the scope of the claims for being encompassed by the present invention.
Claims (10)
1. a kind of high briliancy composite reflective film, it is characterised in that described composite reflective film includes brightening structure layer, poly- ammonia successively
Ester layer, reflective substrate, described layer of polyurethane are coated on the surface of reflective substrate, and the surface of the layer of polyurethane is provided with blast
Structure sheaf, described brightening structure layer has micro-prism structure.
2. high briliancy composite reflective film according to claim 1, it is characterised in that described micro-prism structure is by some micro-
Prism bar is constituted.
3. high briliancy composite reflective film according to claim 2, it is characterised in that the cross section of described microprism bar is
Triangle.
4. high briliancy composite reflective film according to claim 3, it is characterised in that the drift angle of the triangle is fillet.
5. high briliancy composite reflective film according to claim 3, it is characterised in that described microprism bar (referred to as micro- rib
Mirror) height be 20-50 μm, the angle of drift angle is 90 °, and corner radii is 0-2.5 μm.
6. high briliancy composite reflective film according to claim 5, it is characterised in that the corner radii is 2-2.5 μm.
7. high briliancy composite reflective film according to claim 2, it is characterised in that the raw material of described brightening structure layer is
No-solvent type ultraviolet-curing resin glue.
8. high briliancy composite reflective film according to claim 5, it is characterised in that described no-solvent type ultra-violet curing tree
The refractive index of fat glue is 1.53-1.56.
9. high briliancy composite reflective film according to claim 5, it is characterised in that the height of described microprism bar is
44-50 μm, the angle of drift angle is 90 °, and corner radii is 2-2.5 μm.
10. a kind of method of the high briliancy composite reflective film prepared according to any one of claim 1-9, its feature exists
In the preparation method comprises the steps：
(1) polyurethane is formed after being coated with polyurethane resin glue, polyurethane resin glue curing on a surface of reflective substrate
Layer；
(2) no-solvent type ultraviolet-curing resin glue is coated with the surface of layer of polyurethane, using structure roller formation microprism bar, Gu
Brightening structure layer is formed after change.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089249A (en) * | 2017-11-29 | 2018-05-29 | 宁波激智科技股份有限公司 | A kind of hot-forming reflectance coating and preparation method thereof |
| CN109270611A (en) * | 2018-12-11 | 2019-01-25 | 宁波激智科技股份有限公司 | A kind of complex optical film that high brightness height covers |
| CN115616694A (en) * | 2022-11-04 | 2023-01-17 | 宁波东旭成新材料科技有限公司 | An environment-friendly microstructure reflective film |
| CN113900170B (en) * | 2021-10-13 | 2023-09-19 | 安徽晟华光学科技有限公司 | A high-brightness anti-adsorption and scratch-resistant prism film and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115616694A (en) * | 2022-11-04 | 2023-01-17 | 宁波东旭成新材料科技有限公司 | An environment-friendly microstructure reflective film |
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Application publication date: 20170718 |