CN106896427B - Anti-static optical film layer and its manufacturing method - Google Patents
Anti-static optical film layer and its manufacturing method Download PDFInfo
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- CN106896427B CN106896427B CN201611022697.8A CN201611022697A CN106896427B CN 106896427 B CN106896427 B CN 106896427B CN 201611022697 A CN201611022697 A CN 201611022697A CN 106896427 B CN106896427 B CN 106896427B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
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Abstract
A kind of anti-static optical film layer and its manufacturing method.Anti-static optical film layer includes a polarizer, a resin layer and multiple metal ions.Resin layer is set on polarizer, and adsorption of metal ions is on a surface of resin layer.In the present invention, metal ion is bound to the surface of resin layer, by the conductive capability of metal ion, thus can not need that the optical film with anti-static function is additionally arranged, anti-static optical film layer can have superior optical characteristics and good anti-static function.
Description
Technical field
This disclosure relates to a kind of optical film layer and its manufacturing method, especially with regard to a kind of antistatic optical film
Layer and its manufacturing method.
Background technique
In the past in order to allow optical film that there is antistatic property, added usually in the resin of hard conating or anti-reflecting layer mixed
Conductive particulate or addition electroconductive polymer are closed to form transparency conducting layer, and utilizes these conductive materials
Or conductive layer is antistatic to achieve the effect that.
However, the technology of this type must correspond to collocation using different resin ingredients according to hard conating or anti-reflecting layer
Using different conductive materials, once selecting unsuitable conductive material, then it can generate that the bad, coherency of dispersibility is bad or film
The problem of layer yellow, and it is also required to higher cost of manufacture.Therefore, optical film of the exploitation with good antistatic effect is still
The target that industry is made great efforts.
Summary of the invention
This disclosure, must basis to solve the prior art about a kind of anti-static optical film layer and its manufacturing method
Hard conating or anti-reflecting layer are corresponded to collocation using different resin ingredients and use different conductive materials, are not suitable for once selecting
Conductive material, then can lead to the problem of that the bad, coherency of dispersibility is bad or film layer yellow.Antistatic light according to the embodiment
Film layer is learned, metal ion is bound to the surface of resin layer, by the conductive capability of metal ion, thus can not need additionally to set
Set the optical film layer with anti-static function, anti-static optical film layer there can be superior optical characteristics and good antistatic
Function.
According to an embodiment of this disclosure, a kind of anti-static optical film layer is proposed.Anti-static optical film layer includes one
Polarizer, a resin layer and multiple metal ions.Resin layer is set on polarizer, adsorption of metal ions in resin layer one
On surface.
Wherein, based on the weight of the resin layer, the content of those metal ions is 10ppm or more.
Wherein, the surface of the resin layer has multiple negatively charged functional groups, those metal ions are negatively charged via those
Functional group is adsorbed on the surface of the resin layer, and/or those negatively charged functional groups include hydroxyl.
Wherein, those metal ions are positive monovalent metallic ion, positive bivalent metal ion or combinations of the above.
Wherein, which is uv-hardening resin layer.
Wherein, the surface impedance of the anti-static optical film layer is 9*1013Ω or less.
According to another embodiment of this disclosure, a kind of manufacturing method of anti-static optical film layer is proposed.Antistatic light
The manufacturing method of film layer is learned the following steps are included: providing a protective layer；One resin layer is set on protective layer；And to resin layer
A surface carry out a basification, make multiple adsorption of metal ions on the surface of resin layer.
Wherein, the manufacturing method of anti-static optical film layer further includes:
A lye is prepared, which is the aqueous solution for including those metal ions and multiple anion；
The basification is carried out, which is carried out with the surface of the lye to the resin layer, those anion knots
The surface for being bonded to the resin layer forms multiple negatively charged functional groups, those metal ions are adsorbed via those negatively charged functional groups
In on the surface of the resin layer；And
The surface of the dry resin layer, those metal ions form the metal ion on the resin layer.
Wherein, those metal ions in the lye are positive monovalent metallic ion, positive bivalent metal ion or above-mentioned group
It closes, and/or those negatively charged functional groups include hydroxyl.
Wherein, the concentration of the lye is 0.1N~8N.
Wherein, which carries out in 40 DEG C or more, and/or the basification carries out 5~40 seconds.
Wherein, it further includes and fits in the resin layer and the protective layer on the sub- film of one polarisation to form a polarizer.
In the solution of the present invention, metal ion is bound to the surface of resin layer, by the conductive capability of metal ion, thus
Can not need additionally be arranged have anti-static function optical film, anti-static optical film layer can have superior optical characteristics with
And good anti-static function.
More preferably understand to have to above-mentioned and other aspect of the invention, preferred embodiment is cited below particularly, and cooperates institute
Accompanying drawings are described in detail below:
Detailed description of the invention
Figure 1A is painted the schematic diagram of the anti-static optical film layer of the embodiment according to this disclosure.
Figure 1B is the enlarged drawing of part A in Figure 1A.
Fig. 2A~2E is painted the manufacturing method of the anti-static optical film layer of the embodiment according to this disclosure.
Wherein, appended drawing reference:
10: anti-static optical film layer
110: polarizer
110a, 120a: surface
111,115: protective layer
113: the sub- film of polarisation
120: resin layer
130M: metal ion
200: lye
300: pure water
400: baking oven
Specific embodiment
In the anti-static optical film layer of the embodiment of this disclosure, metal ion is bound to the surface of resin layer, by
The conductive capability of metal ion, thus can not need that the optical film layer with anti-static function is additionally arranged, anti-static optical
Film layer can have superior optical characteristics and good anti-static function.The group that embodiment is proposed becomes illustration
With the range not to be protected to this disclosure limits.Tool usually intellectual works as can be according to the need of actual implementation aspect
Those compositions are modified or changed.
Figure 1A is painted the anti-static optical film layer schematic diagram according to an embodiment of this disclosure, and Figure 1B is A in Figure 1A
Partial enlarged drawing.As illustrated in figures 1A and ib, anti-static optical film layer 10 include a polarizer 110, a resin layer 120 and
Multiple metal ion 130M.Resin layer 120 is set on polarizer 110.
According to the embodiment of this disclosure, metal ion 130M is adsorbed to the surface 120a of resin layer 120, by metal
The conductive capability of ion 130M, thus can not need that the optical film with anti-static function is additionally arranged, antistatic optical film
Layer 10 can have superior optical characteristics and good anti-static function.
In some embodiments, the surface impedance of anti-static optical film layer 10 is 9*1013Ω or less.
In one embodiment, based on the weight of resin layer 120, the content of metal ion 130M is 10ppm or more.
In one embodiment, based on the weight of resin layer 120, the content of metal ion 130M is 25ppm or more.
As illustrated in figures 1A and ib, in embodiment, the surface 120a of resin layer 120 has multiple negatively charged functional groups
(negatively charged functional group), these metal ions 130M are inhaled via these negatively charged functional groups
It invests on the surface 120 of resin layer 120.In one embodiment, these metal ions 130M also can directly be adsorbed in resin layer 120
Surface 120 on.
According to the embodiment of this disclosure, since metal ion 130M is adsorbed to resin layer via ionic bond mode
On 120 surface 120a, there is relatively more stable associativity compared to simple suction-operated, unless with the washing of a large amount of high temperature
Be possible to cause the disengaging of metal ion 130M.Still further, it can't be adopted in general panel attachment polarizer technique
Processing step is washed with high temperature, therefore metal ion 130M can't be lost in process.Furthermore since metal ion 130M is passed through
It is adsorbed on the surface 120a of resin layer 120 by ionic bond mode, therefore metal ion 130M is for the table of resin layer 120
The external form profile of face 120a will not have any impact or damage.
As illustrated in figures 1A and ib, in some embodiments, negatively charged functional group may include hydroxyl (OH group).
In some embodiments, metal ion 130M can be positive monovalent metallic ion, positive bivalent metal ion or above-mentioned
Combination.
For example, in some embodiments, metal ion 130M be, for example, positive monovalence sodium ion (Na+), positive monovalence potassium from
Sub (K+) or combinations of the above.
In embodiment, resin layer 120 is, for example, functional optical film, e.g. hard conating or anti-reflecting layer.
In some embodiments, resin layer 120 is, for example, uv-hardening resin layer.For example, ultraviolet ray hardening type
Resin layer can be selected from polystyrene resin, acrylic resin, polyvinyl resin, polycarbonate resin and propylene-styrene resins
Or combinations thereof group composed by object at least one.
In embodiment, resin layer 120 does not include any conductive material or conducting particles.For example, resin layer 120 does not wrap
Include conducting polymer or conductive metal ion；In other words, the antistatic effect of anti-static optical film layer 10 is entirely from resin layer
The metal ion 130M of 120 surface 120a.
In embodiment, resin layer 120 directly contacts polarizer 110.As illustrated in figures 1A and ib, in embodiment, resin layer
120 directly contact the surface 110a of polarizer 110.That is, according to the embodiment of this disclosure, resin layer 120 and partially
Between tabula rasa 110 and not set any conductive film layer.It in other words, does not include any quiet with resisting in anti-static optical film layer 10
Other additional layers of electric effect, the surface 120a of the antistatic effect of anti-static optical film layer 10 entirely from resin layer 120
Metal ion 130M.
Still further, according to the embodiment of this disclosure, setting is not needed in anti-static optical film layer 10 and is appointed
What other additional layers with antistatic effect, thus have the advantages that overall structure thinning.Also, it is additional not need setting
Antistatic layer, thus also there is no need to for the conductive material of additional antistatic layer selection collocation with resinae
Type, thus have the advantages that technique simplifies.
In some embodiments, polarizer 110 may include a polyvinyl alcohol (polyvinyl for being adsorbed with iodine and orientation
Alcohol, PVA) the sub- film 113 of polarisation and two protective layers 111,115 are set to the two sides of the sub- film 113 of polarisation.
In embodiment, the material of protective layer 111,115 for example be can be selected from: cellulose-based resin, acrylic resin, non-knot
Crystalline substance polyolefin-based resins, polyester based resin, polycarbonate-based resin and combinations thereof.
Cellulose-based resin refers to resin of the hydroxyl by acid esterification of part in cellulose, or a part by acetic acid esters
Change, a part is by other Esterification mixed esters.Cellulose-based resin is preferably cellulose esters system resin, and more preferably acetyl group is fine
Tie up prime system resin, such as tri acetyl cellulose, diacetyl cellulose, cellulose acetate propionate, cellulose ethanoate
Butyrate etc., the fiber being sufficiently esterified are called Triafol T (triacetate cellulose, TAC) usually, have excellent
Supportive, optical homogeneity and high transparency, and acid and alkali-resistance and UV resistant.
Other resin simple examples of embodiment are as follows, but not limited to this, those skilled in the art can be according to following explanation
The similar resin enumerated, category this case scope.Acrylic resin for example by comprising methyl methacrylate (PMMA) and
The mono-functional monomers of methyl acrylate polymerize or combined polymerization forms.Amorphism polyolefin-based resins such as cyclic olefin monomers
(co) polymer (cyclo olefin (co) polymers, COC/COP), by norbornene, cyclopentadiene, bicyclopentadiene,
The ring-opening polymerization polymers such as tetracyclododecane, or constituted with the co-polymer of olefines.Polyester based resin such as terephthalic acid (TPA)
The polymer or ethylene terephthalate and other dicarboxylic acids or glycol of second diester are formed by copolymer.Polycarbonate
It is that resin is for example formed by polyester by carbonic acid and glycol or bis-phenol.In some embodiments, protective layer 111,115 can be poly- pair
Terephtha-late (polyethylene terephthalate, PET) or polyethylene (polyethylene, PE) or poly- third
Alkene (Polypropylene, PP).
Furthermore protective layer 111,115 can also be containing ultraviolet absorbing agent (for example, diphenylketone compound or benzotriazole
Compound etc.) or contain plasticiser (for example, phosphenylic acid ester compounds or phthalate compound etc.).In addition, can also
Further above-mentioned protective layer is carried out and is surface-treated, for example, anti-glare treatment, anti-reflex treated, hard coating, electrification prevent from locating
Reason or anti-pollution processing etc..
In other embodiments, polarizer 110 may also comprise phase difference film, brightness enhancement film or other to optical gain, orientation,
Compensation turns to, straight friendship, diffusion, protection, anti-stick, scratch resistance, the helpful diaphragm such as resist dizzy, reflection suppression, high refractive index.
Fig. 2A~2E is painted the manufacturing method of the anti-static optical film layer of the embodiment according to this disclosure.This implementation
Same or like reference numerals, and the phase of same or similar component are continued to use with the same or similar component of previous embodiment in example
Speak on somebody's behalf it is bright please refer to aforementioned, details are not described herein.
As shown in Figure 2 A, a protective layer 115 and one resin layer 120 of setting are provided on protective layer 115.Such as Fig. 2A institute
Show, the direct contact protection layer 115 of resin layer 120.
Then, as shown in Fig. 2 B~2D, a basification is carried out to a surface 120a of resin layer 120, makes multiple metals
Ion 130M is adsorbed on the surface 120a of resin layer 120.In embodiment, metal ion 130M is formed on resin layer 120
Manufacturing method includes the following steps.
Shown in Fig. 2 B, a lye 200 is prepared, lye 200 is the aqueous solution for including metal ion 130M and multiple anion.
For example, in an embodiment, lye 200 is, for example, the aqueous solution of sodium hydroxide (NaOH) or potassium hydroxide (KOH), then metal
Ion 130M is then sodium ion (Na+) or potassium ion (K+), anion be then OH-Ion.In embodiment, metal ion 130M and
Anion is electrically charged ion, and lye 200 is aqueous solution, and lye 200 does not include any organic solution.Therefore, lye 200
Any damage not will cause to the Polymer Materials ' Structure of the surface 120a of resin layer 120.
Then, a basification is carried out with surface 120 of the lye 200 to resin layer 120.In some embodiments, e.g.
Resin layer 120 above-mentioned is dipped in lye 200 with protective layer 115.After basification, anion binding to resin layer
120 surface 120a and form multiple negatively charged functional groups, metal ion 130M is adsorbed in tree via these negatively charged functional groups
On the surface 120a of rouge layer 120.
In some embodiments, the metal ion 130M in lye 200 be, for example, positive monovalent metallic ion, positive divalent metal from
Son or combinations of the above.In some embodiments, the metal ion 130M in lye 200 is, for example, sodium ion, potassium ion or above-mentioned
Combination.
In some embodiments, anion in lye 200 and its to be formed by negatively charged functional group for example may include hydroxyl
(OH group)。
In some embodiments, the concentration of lye 200 is 0.1N~8N；Preferable concentration is 1N~6N；Optimal concentration is
3N~5N.
In some embodiments, basification can be carried out in 40 DEG C or more, can actually be adjusted according to the situation of different membrane materials
It is whole；In some embodiments, preferable treatment temperature is between 50 DEG C~60 DEG C.It for example, e.g. will tree in an embodiment
Rouge layer 120 and protective layer 115 are dipped in lye 200, and 200 to 40 DEG C of lye or more are heated in soaking process.
In some embodiments, basification can be carried out 5~40 seconds.More preferably the alkali process time can carry out 10~30 seconds；
For example, in an embodiment, e.g. resin layer 120 and protective layer 115 are dipped in lye 200, and when impregnating
Between maintain 5~40 seconds.
As shown in Figure 2 C, after basification, adsorbing metal ions 130M in the step on resin layer 120 more may include with
The surface 120a of the cleaning resin layer 120 of pure water 300.It can be by extra alkali with the surface 120a that pure water 300 cleans resin layer 120
Liquid, which rinses, to be removed.
In some embodiments, the time that the surface 120a of resin layer 120 is cleaned with pure water 300 is about 5 seconds.
In embodiment, the step of cleaning the surface 120a of resin layer 120 with pure water 300 is after basification and dry
It is carried out before the surface 120a of dry resin layer 120.
As shown in Figure 2 D, the surface 120a of dry resin layer 120, then these metal ions 130M is adsorbed in resin layer
On 120.
In some embodiments, such as resin layer 120 and protective layer 115 can be put into baking oven 400 and carry out dry resin layer
120 surface 120a.
Then, as shown in Figure 2 E, resin layer 120 and protective layer 115 and another protective layer 111 are fitted in into the sub- film of polarisation
113 two sides, to form the anti-static optical film layer of the embodiment of this disclosure, structure is as illustrated in figures 1A and ib.
According to the embodiment of this disclosure, after basification, the content of metal ion 130M can reach 10ppm
More than, and adsorbed after basification metal ion 130M resin layer 120 surface 120a possessed by water contact angle phase
Compared with 5% or more decline before basification.
Embodiment is described further below.It is listed below the anti-static optical film layer of several embodiments and comparative example
Process conditions and the characteristic test after anti-static optical film layer is fabricated to as a result, with explanation using obtained by this disclosure
The characteristic of anti-static optical film layer.However embodiment below is only to illustrate to be used, and be not necessarily to be construed as in this exposure
Hold the limitation implemented.Resin layer used by each embodiment and the anti-static optical film layer of comparative example is acryl system resin (NP
System, model: KA40-C2A7).
The production method of embodiment 1:
The KOH solution of concentration 4N is heated to 55 DEG C, the resin layer for being intended to carry out surface basification is put into protective layer
It is impregnated 5 seconds in the KOH aqueous solution that concentration is 4N, then resin layer is taken out, after pure water rinsing 5 seconds of 25 DEG C, is put into baking oven
It is dry, impedance at surface is finally measured with megger.
The production method of embodiment 2~13 is similar to Example 1, difference be in the temperature in KOH aqueous solution, resin layer with
Protective layer is put into the time of the time and washing impregnated in KOH aqueous solution.Comparative example 1 be then without any basification,
Feature measurement will be directly carried out with identical resin layer used by embodiment 1~13.With inductive couple plasma mass spectrograph
The constituent content of (Inductively Coupled Plasma, ICP) measurement metal ion.
Table 1
It can be seen that by above-mentioned table 1, the resin layer of the non-basification of comparative example 1 has sizable surface impedance, and real
The resin layer with metal ion 130M after applying the basification of example 1~13 all has relatively small surface impedance.
It can be seen that from least Examples 1 to 5, it, then can be by constituent content when alkalization temperature is identical and alkalization time is longer
Measurement result finds out that the content of metal ion is bigger, and surface impedance is then smaller.In addition, can be seen that by least embodiment 6~9, when
When alkalization temperature and alkalization time remain identical, indicate that its environment that alkalizes is identical, even across the washing of different time, table
Face impedance and constituent content still remain relatively stable, indicate that metal ion 130M has quite high stability relative to washing.
Also, it can be seen that by least embodiment 10~13, it, then can be by the survey of constituent content when alkalization time is identical and alkalization temperature is higher
Amount result finds out that the content of metal ion is bigger, and surface impedance is then smaller.
Above-described embodiment is only to illustrate, actually due to the electric conductivity degree demand of the Antistatic surface of different product
It is different, its electric conductivity can be adjusted via the content of adjustment metal ion, and the content of metal ion then can be via tune
The concentration of whole alkalization time, alkalization temperature and lye adjusts.For example, when the alkalization time of basification is longer, alkali
Change that temperature is higher and/or the concentration of lye is higher, then the content of the metal ion adsorbed is just higher, and can achieve lower table
Face impedance.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art
It all should belong to the protection scope of the claims in the present invention.
Claims (12)
1. a kind of anti-static optical film layer characterized by comprising
One polarizer；
One resin layer is set on the polarizer；And
Multiple metal ions, multiple adsorption of metal ions is on a surface of the resin layer.
2. anti-static optical film layer according to claim 1, which is characterized in that the weight based on the resin layer, it is multiple
The content of metal ion is 10ppm or more.
3. anti-static optical film layer according to claim 1, which is characterized in that the surface of the resin layer has multiple bands
Negative electricity functional group, multiple metal ion are adsorbed on the surface of the resin layer via multiple negatively charged functional group, and/or
Multiple negatively charged functional group includes hydroxyl.
4. anti-static optical film layer according to claim 1, which is characterized in that multiple metal ion is positive monovalent metal
The combination of ion, positive bivalent metal ion or positive monovalent metallic ion and positive bivalent metal ion.
5. anti-static optical film layer according to claim 1, which is characterized in that the resin layer is uv-hardening resin
Layer.
6. anti-static optical film layer according to claim 1, which is characterized in that the surface impedance of the anti-static optical film layer
For 9*1013Ω or less.
7. a kind of manufacturing method of anti-static optical film layer characterized by comprising
One protective layer is provided；
One resin layer is set on the protective layer；And
One basification is carried out to a surface of the resin layer, makes multiple adsorption of metal ions on the surface of the resin layer.
8. the manufacturing method of anti-static optical film layer according to claim 7, which is characterized in that further include:
A lye is prepared, which is the aqueous solution for including multiple metal ion and multiple anion；
The basification is carried out, the basification, multiple anion binding are carried out with the surface of the lye to the resin layer
Multiple negatively charged functional groups are formed to the surface of the resin layer, multiple metal ion is inhaled via multiple negatively charged functional group
It invests on the surface of the resin layer；And
The surface of the dry resin layer, multiple metal ion form the metal ion on the resin layer.
9. the manufacturing method of anti-static optical film layer according to claim 8, which is characterized in that multiple in the lye
Metal ion is positive the group of monovalent metallic ion, positive bivalent metal ion or positive monovalent metallic ion and positive bivalent metal ion
It closes, and/or multiple negatively charged functional group includes hydroxyl.
10. the manufacturing method of anti-static optical film layer according to claim 8, which is characterized in that the concentration of the lye is
0.1N~8N.
11. the manufacturing method of anti-static optical film layer according to claim 7, which is characterized in that the basification is in 40
DEG C or more carry out, and/or the basification carry out 5~40 seconds.
12. the manufacturing method of anti-static optical film layer according to claim 11, which is characterized in that further include the resin
Layer fits on the sub- film of a polarisation with the protective layer to form a polarizer.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05107403A (en) * | 1991-10-16 | 1993-04-30 | Asahi Glass Co Ltd | High refractivity conductive film or low reflective anti-static film and manufacture thereof |
| JP4224227B2 (en) * | 2001-07-27 | 2009-02-12 | リンテック株式会社 | Antistatic hard coat film and method for producing the same |
| CN100460894C (en) * | 2006-01-27 | 2009-02-11 | 达信科技股份有限公司 | Structure of optical thin films and manufacturing method therefor |
| CN102012532B (en) * | 2009-09-03 | 2015-05-20 | 株式会社巴川制纸所 | Optical laminate, polarizing plate, and display apparatus using the same |
| CN102786875B (en) * | 2012-08-27 | 2015-06-24 | 宁波惠之星新材料科技有限公司 | Anti-static hardened film |
| JP2016109477A (en) * | 2014-12-03 | 2016-06-20 | セイコーエプソン株式会社 | Optical component and watch |
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