CN106553414B - A kind of liquid crystal display surface protection film - Google Patents
A kind of liquid crystal display surface protection film Download PDFInfo
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- CN106553414B CN106553414B CN201611057938.2A CN201611057938A CN106553414B CN 106553414 B CN106553414 B CN 106553414B CN 201611057938 A CN201611057938 A CN 201611057938A CN 106553414 B CN106553414 B CN 106553414B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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Abstract
The present invention provides a kind of liquid crystal display surface protection film, and structure is to be followed successively by from top to bottom：Nonpolluting coating, polymer film layer, anti-blu-ray layer, adhesive phase and release liner, wherein polymer film layer are the PET film being uniaxially stretched, and thickness is 200 350 μm, and the overall thickness of surface protection film is at 400 650 μm.Described adhesive layer outer edge region and interior zone, the area of wherein interior zone account for the 60 80% of adhesive phase area, and the outer edge region forms ring-type on the outside of surface protection film.The present invention solves the problems, such as that anti-blue light, liquid crystal display surface are antifouling, has excellent soil resistance（Hydro-oleophobicity）, blue light filterability, resistance to long-time service, low residual amt, the excellent properties such as paving.
Description
Technical field
The present invention relates to surface protection film fields, and in particular to one kind being suitable for liquid crystal display surface protection film, especially
It is related to the surface protection film of large-size liquid crystal television.
Background technology
As LCD TV and computer monitor are worldwide popularized, the use of screen is more and more, is protected to screen
Shield becomes a necessity.Surface protection film is widely used in the fields such as mobile phone, tablet computer, LCD TV, surface protection film
Basic role is protection liquid crystal display, is applied to daily and office space, unavoidably faces dust, dust and greasy dirt
There is the surface protection film of excellent double thin antifouling capacities to become the surface protection film being badly in need of for pollution.
With the development of science and technology, it was recognized that screen generate blue light to be used for a long time mobile phone, computer working clan and
The long-term harm for seeing TV.Data are shown, cause the whole world to be lost more than 30000 people every year because of blue light, radiation within 2006 to 2008
It is bright, and send out orange warning in the end of the year 2009：" blue light, Radiation On Human class potential recessive threaten will be considerably beyond tonyred, three
The destructiveness of poly cyanamid, SASI, HINI virtually swallows the eyes of people ".Therefore the surface protection film with anti-blue light performance is also
One hot research topic.
The present invention is exactly to make a large amount of research to solve above-mentioned two problems simultaneously, obtains the technical side of the present invention
Case.
Invention content
Goal of the invention：To solve the above-mentioned problems, the present invention is by the transformation of structure, to nonpolluting coating, thin polymer film
Layer, the selection of thickness of anti-blu-ray layer, adhesive phase, the selection of composition, it is antifouling to solve anti-blue light, liquid crystal display surface
The problem of；Meanwhile adhesive phase, according to the different needs for using fringe region and interior zone, selection has specific group different
At and interior side dimension selection, have also achieved the remaining technique effect of stable bonding, adhesive-free.Meanwhile using thick ruler
Very little is uniaxially stretched PET, can improve the paving success rate of surface protection film.
The technical solution for solving above-mentioned technical problem is as follows：
A kind of liquid crystal display surface protection film, the surface protection film are followed successively by from top to bottom：Nonpolluting coating 1, polymerization
Object film layer 2, anti-blu-ray layer 3, adhesive phase 4 and release liner 5, wherein polymer film layer (2) are the PET that is uniaxially stretched thin
Film, thickness are 200-350 μm.
Polymer film selects
The selection of the surface protection membrane structure realizes good excellent properties, the wherein choosing of 2 thickness of polymer film layer
Select the intensity and anti-pressure ability for affecting surface protection, it is desirable that protection is with certain thickness, and thickness orientation is 200-350
μm.When thickness not in the range, when thickness is smaller, polymer film layer is difficult to bear larger pressure, is not suitable for liquid crystal
Display uses, and is only adapted to the use of the small screen, and wherein large scale is 12 cun or more screens；When thickness is thicker,
Adhesion property is poor, easily peelable in use, and collision or friction in use energetically are easy to make its tilting, is not suitable for
It is used for a long time.
Simultaneously as LCD TV screen and computer monitor have large-size, there are larger to be stranded during paving
Difficulty, it is an important research topic to improve its paving success rate.It is the PET film being uniaxially stretched that thin polymer film 2, which uses,
It has preferable intensity in draw direction.Draw direction is the relatively narrow width direction of surface protection film, during paving
Warpage does not occur under the direction, reaches and improves surface protection film paving effect and success rate.
20-80 μm of 1 thickness of the nonpolluting coating, 2 thickness of the polymer film layer are 200-350 μm, the anti-blue light
3 thickness of layer are 20-80 μm, and 4 thickness of described adhesive layer is 100-200 μm.
The selection of each component thickness is according to the selection of each layer performance, not optional, of the invention surface protection
The overall thickness of film requires to be more than 400 μm, is less than 650 μm, overall thickness is excessively thin, influences the smoothness of paving process, is easy to happen folding
It is bent；It is excessively hard during paving if blocked up, and the stripping at edge easily occurs during use.
The selection of adhesive phase
As optimal technical scheme, described adhesive layer 4 is outer edge region A and interior zone B according to structure setting,
The area of middle interior zone B accounts for the 60-80% of 4 area of adhesive phase, and the outer edge region A is formed on the outside of surface protection film
It is cyclic annular.
The central inventive point of the present invention is that outside selects the adhesive phase of different compositions in adhesive phase, wherein
Outer edge region A is good to the adhesion property of glass, can be to avoid the collision during use once in a while with regard to alice, when improving use
It is long；Interior zone B is smaller to the adhesion strength of glass, guarantee can be closely adhered to glass, do not generate bubble, due to adhesion strength compared with
It is small, basic noresidue.
As optimal technical scheme, 4 outer edge region A of described adhesive layer coats to obtain using adhesive A, the bonding
Agent A includes：Urethane acrylate 20-50 parts by weight, the acrylate 15-30 parts by weight of hydroxyl, crosslinking agent 1-5 weight
Part, coupling agent 5-15 parts by weight, photoinitiator 0.2-0.8 parts by weight, levelling agent 0.5-2 parts by weight, solvent 30-100 parts by weight.
The further preferred 12-15 parts by weight of coupling agent dosage.
Adhesive A has used high adhesion strength for what fringe region A was used, mainly by the coupling agent of high-content,
The adhesion strength of adhesive and glass can be improved.Simultaneously as the composition selection of bonding force, with higher cohesive force,
In test process, residual quantity is also extremely low.
As further preferred technical solution, 4 interior zone B of described adhesive layer coats to obtain using adhesive B, described
Adhesive B includes：Urethane acrylate 10-30 parts by weight, the acrylate 10-15 parts by weight of hydroxyl, crosslinking agent 1-5 weights
Measure part, coupling agent 1-3 parts by weight, photoinitiator 0.2-0.8 parts by weight, levelling agent 0.5-2 parts by weight, solvent 30-100 weight
Part.The adhesive B of the composition has moderate cohesive force and the adhesion strength with base material, while keeping closely bonding with glass
There will not be any residual.
The selection of stain-proofing layer
As optimal technical scheme, the nonpolluting coating is cured to obtain the antifouling paint to include following heavy by antifouling paint
Measure the raw material of part：Epoxy acrylate 20-40 parts by weight, photoinitiator 0.1-3 parts by weight, levelling agent 0.5-2 parts by weight are hydrophobic
Agent 2-8 parts by weight, coupling agent 0.5-4 parts by weight, solvent 50-80 parts by weight.
The hydrophobing agent is that silicon fluoride handles array carbon nano tube film, with hydro-oleophobicity.In the prior art
Through being reported, but rarely it is applied to coating level, the consistency problem being related between each component influences hydrophobic oleophobic
Effect.
One layer of release liner can also be set as needed on the outside of stain-proofing layer.
The selection of anti-blu-ray layer
As optimal technical scheme, the anti-blu-ray layer 3 is made of anti-blue light paint solidification, and the anti-blue light coating includes
The raw material of following parts by weight：Urethane acrylate 18-38 parts by weight, the steady moral TM473-15 parts by weight in blue-light absorbers Europe, light
Initiator 0.1-3 parts by weight, levelling agent 0.5-2 parts by weight, coupling agent 0.5-4 parts by weight, solvent 50-80 parts by weight.The blue light
Absorbent is by M8003 line, mainly absorbing blue light.
Improve interface interaction power
All it is to use polyurethane acroleic acid in order to enhance the combination between each layer, between anti-blu-ray layer and adhesive phase
Ester, in preparation process median surface, bonding force is fine, the layering avoided.The present invention can also be by carrying out polymer film layer
Sided corona treatment improves the active force between interface.
Beneficial technique effect
The present invention is by the transformation of structure, to the thickness of nonpolluting coating, polymer film layer, anti-blu-ray layer, adhesive phase
The selection of thickness, composition selection, solve the problems, such as that anti-blue light, liquid crystal display surface are antifouling；Meanwhile adhesive phase
According to the different needs for using fringe region and interior zone, the choosing with different specific compositions and interior side dimension is selected
It selects, has also achieved the remaining technique effect of stable bonding, adhesive-free.Meanwhile it being uniaxially stretched PET using thick size, it can
To improve the paving success rate of surface protection film.
Description of the drawings：
Fig. 1 is the sectional view of surface protection film,
Wherein, 1 it is nonpolluting coating, 2 be polymer film layer, 3 be anti-blu-ray layer, 4 be adhesive phase, 5 is release liner.
Fig. 2 is the vertical view of adhesive phase,
Wherein, A is fringe region, and B is interior zone.
Specific implementation mode
The principles and features of the present invention are described below, and example is only intended to explain the present invention, is not intended to
Limit the scope of the present invention.Following preparation example and the unit of each raw material of embodiment are parts by weight.
Preparation example
1. antifouling paint
| Antifouling paint A | Antifouling paint B | Antifouling paint C | |
| Epoxy acrylate | 30 | 30 | 30 |
| Urethane acrylate | 0 | 0 | 0 |
| Photoinitiator | 1.5 | 1.5 | 1.5 |
| Levelling agent | 0.7 | 0.7 | 0.7 |
| Silicon fluoride handles array carbon nano tube film | 5 | 0 | 0 |
| Array carbon nano tube | 0 | 5 | 0 |
| Carbon nanotube | 0 | 0 | 5 |
| Coupling agent | 0.8 | 0.8 | 0.8 |
| Solvent | 62 | 62 | 62 |
2. adhesive
| Adhesive A 1 | Adhesive A 2 | Adhesive B1 | Adhesive B2 | |
| Urethane acrylate | 30 | 40 | 25 | 30 |
| The acrylate of hydroxyl | 15 | 5 | 10 | 5 |
| Crosslinking agent | 2 | 2 | 3 | 3 |
| Coupling agent | 15 | 15 | 2 | 2 |
| Photoinitiator | 0.5 | 0.5 | 0.5 | 0.5 |
| Levelling agent | 1.5 | 1.5 | 1.5 | 1.5 |
| Solvent | 36 | 36 | 58 | 58 |
3. anti-blue light coating
Anti- blue light coating A：30 parts by weight of urethane acrylate, the steady moral TM4710 parts by weight in blue-light absorbers Europe, light draw
Send out 1.5 parts by weight of agent, 1.5 parts by weight of levelling agent, 2 parts by weight of coupling agent, 55 parts by weight of solvent.
Anti- blue light coating B：30 parts by weight of epoxy acrylate, the steady moral TM4710 parts by weight in blue-light absorbers Europe are light-initiated
1.5 parts by weight of agent, 1.5 parts by weight of levelling agent, 2 parts by weight of coupling agent, 55 parts by weight of solvent.
Embodiment
Embodiment 1
Cure to obtain the antifouling of 50 μ m-thicks in 280 μm of the front surface coated antifouling paint A for being uniaxially stretched PET film 2 of thickness
Coating 1 coats anti-blue light coating A in reverse side and cures to obtain the anti-blu-ray layer 3 of 50 μ m-thicks, is coated in 3 surface outer ring of anti-blu-ray layer
Adhesive A 1 (outer ring area accounts for the 30% of film layer area), interior zone application of adhesive B1, adhesive phase thickness are 120 μ
M, adhesive layer surface cover release liner, and release liner thickness is 80 μm, obtains the surface protection film of 580 μ m thicks.
Comparative example 1-2
The antifouling paint A in antifouling paint B and C alternative embodiment 1 is respectively adopted, obtains surface protection film.
Comparative example 3
Using the adhesive A 1 in 2 alternative embodiment 1 of adhesive A, surface protection film is obtained.
Comparative example 4
Using the adhesive B1 in adhesive B2 alternative embodiments 1, surface protection film is obtained.
Comparative example 5
Using the adhesive A 1 in adhesive B1 alternative embodiments 1, surface protection film is obtained.
Comparative example 6
Using the adhesive B1 in 1 alternative embodiment 1 of adhesive A, surface protection film is obtained.
Comparative example 7
Using the anti-blue light coating A in anti-blue light coating B alternative embodiments 1, surface protection film is obtained.
Comparative example 8 and 9
Being uniaxially stretched in the PET film alternative embodiment 1 of 80 μm and 400 μm of thickness being uniaxially stretched is respectively adopted
PET film obtains surface protection film.
Comparative example 10
Using the PET film being uniaxially stretched in the non-PET film alternative embodiment 1 being uniaxially stretched of condition of equivalent thickness, obtain
Surface protection film.
Test method
1. soil resistance is tested
The surface protective plate of embodiment or comparative example is measured using contact angle instrument respectively and is connect with water and soybean oil
Feeler, and keep a record respectively.
2. residual contamination is tested
The surface protective plate of embodiment or comparative example is pasted onto on the glass with antireflection film, it is small that 1 is placed at 160 DEG C
Shi Hou is placed 30 minutes at 23 DEG C after returning to room temperature, and surface protective plate is removed at 23 DEG C, and range estimation confirms the bonding agent on glass
Residual caused by the presence or absence of pollution.
A：It is polluted caused by not confirming the bonding agent residual on glass after surface protective plate stripping.
B：Subregion confirms a small amount of caused by the bonding agent on glass remains on a small quantity after surface protective plate stripping
Pollution.
C：Most of region is polluted caused by confirming the residual of the bonding agent on glass after surface protective plate stripping.
D：The bonding agent on glass is confirmed after surface protective plate stripping, and seriously residual causes seriously to pollute.
3.Tilt test
The surface protective plate of embodiment or comparative example is attached in 15 cun of glass screen, using 50g from 10cm height into
The impact of row freely falling body has checked whether tilting at the edge for the glass screen for posting surface protection film after dripping 20 times.
A：Tilting is not observed
B：Observe that unobvious tilt；
C：Observe apparent tilting.
4. paving is tested
Random selected 20 professional pad pasting practitioner, (is suitable for 20 cun of screens for embodiment and comparative example surface protection film
Curtain), it records and occurs the number of warpage in each sample test.
A.0-3 there is warpage phenomenon in people
B.4-8 there is warpage phenomenon in people
C.9 people appears above warpage phenomenon
Test result
By above-mentioned data it can be found that the surface protection film that the present invention protects has excellent soil resistance (hydrophobic oleophobic
Property), blue light filterability, resistance to long-time service, low residual amt, excellent properties, the selection of each component and the selection of parameter such as paving
All it is that selection and experiment deliberately obtains.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of liquid crystal display surface protection film, it is characterised in that：The surface protection film includes successively from top to bottom：It is antifouling
Coating（1）, polymer film layer（2）, anti-blu-ray layer（3）, adhesive phase（4）And release liner（5）, wherein polymer film layer
（2）For the PET film being uniaxially stretched, thickness is 200-350 μm；
Described adhesive layer（4）It is divided into outer edge region（A）And interior zone（B）, wherein interior zone（B）Area account for bonding
Oxidant layer（4）The 60-80% of area, the outer edge region（A）It is formed on the outside of surface protection film cyclic annular；
Described adhesive layer（4）Outer edge region（A）It coats to obtain using adhesive A, described adhesive A includes：Polyurethane third
Olefin(e) acid ester 20-50 parts by weight, the acrylate 15-30 parts by weight of hydroxyl, crosslinking agent 1-5 parts by weight, coupling agent 5-15 weight
Part, photoinitiator 0.2-0.8 parts by weight, levelling agent 0.5-2 parts by weight, solvent 30-100 parts by weight；
Described adhesive layer（4）Interior zone（B）It coats to obtain using adhesive B, described adhesive B includes：Polyurethane propylene
Acid esters 10-30 parts by weight, the acrylate 10-15 parts by weight of hydroxyl, crosslinking agent 1-5 parts by weight, coupling agent 1-3 parts by weight,
Photoinitiator 0.2-0.8 parts by weight, levelling agent 0.5-2 parts by weight, solvent 30-100 parts by weight.
2. liquid crystal display surface protection film as described in claim 1, it is characterised in that：The nonpolluting coating is by antifouling painting
Material solidification obtains, and the antifouling paint includes the raw material of following parts by weight：Epoxy acrylate 20-40 parts by weight, photoinitiator
0.1-3 parts by weight, levelling agent 0.5-2 parts by weight, hydrophobing agent 2-8 parts by weight, coupling agent 0.5-4 parts by weight, solvent 50-80 weights
Measure part.
3. liquid crystal display surface protection film as claimed in claim 2, it is characterised in that：The hydrophobing agent is at silicon fluoride
Array carbon nano tube film is managed, with hydro-oleophobicity.
4. liquid crystal display surface protection film as described in claim 1, it is characterised in that：The anti-blu-ray layer（3）By resisting
Blue light paint solidification forms, and the anti-blue light coating includes the raw material of following parts by weight：Urethane acrylate 18-38 weight
Part, the steady moral TM47 3-15 parts by weight in blue-light absorbers Europe, photoinitiator 0.1-3 parts by weight, levelling agent 0.5-2 parts by weight, coupling
Agent 0.5-4 parts by weight, solvent 50-80 parts by weight.
5. liquid crystal display surface protection film as described in claim 1, it is characterised in that：The nonpolluting coating（1）Thickness
20-80 μm, the polymer film layer（2）Thickness is 250-300 μm, the anti-blu-ray layer（3）Thickness is 20-80 μm, described
Adhesive phase（4）Thickness is 100-200 μm.
6. liquid crystal display surface protection film as described in claim 1, it is characterised in that：The nonpolluting coating, polymer
Film layer, anti-blu-ray layer, the overall thickness of adhesive phase and release liner are at 400-650 μm.
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| CN201611057938.2A CN106553414B (en) | 2016-11-26 | 2016-11-26 | A kind of liquid crystal display surface protection film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611057938.2A CN106553414B (en) | 2016-11-26 | 2016-11-26 | A kind of liquid crystal display surface protection film |
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| CN106553414A CN106553414A (en) | 2017-04-05 |
| CN106553414B true CN106553414B (en) | 2018-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108822668A (en) * | 2018-06-04 | 2018-11-16 | 马爱连 | A kind of UV resistance hydrophobic coating agent and its preparation method and application |
| CN113462134B (en) * | 2021-07-27 | 2022-07-22 | 浙江世博新材料股份有限公司 | PET protective film and preparation method thereof |
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| CN102695685A (en) * | 2010-01-12 | 2012-09-26 | 日本电气硝子株式会社 | Glass film laminate, method of producing the same, and method of producing glass film |
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| CN203651114U (en) * | 2013-11-22 | 2014-06-18 | 精兴国际有限公司 | Laminated structure of protector |
| CN103935097A (en) * | 2014-04-10 | 2014-07-23 | 宁波惠之星新材料科技有限公司 | Blue-proof hardening film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160002630U (en) * | 2015-01-20 | 2016-07-28 | 장희준 | Flame Retardant transparent film |
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| CN102695685A (en) * | 2010-01-12 | 2012-09-26 | 日本电气硝子株式会社 | Glass film laminate, method of producing the same, and method of producing glass film |
| CN102504625A (en) * | 2011-10-29 | 2012-06-20 | 合肥乐凯科技产业有限公司 | Fingerprint pollution preventing transparent hardening film |
| CN103242796A (en) * | 2013-05-24 | 2013-08-14 | 汕头市骏码凯撒有限公司 | Ultraviolet curing liquid state optical cement and preparation method thereof |
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