CN104216033A - Anti-dazzling hard coating - Google Patents
Anti-dazzling hard coating Download PDFInfo
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- CN104216033A CN104216033A CN201410229766.7A CN201410229766A CN104216033A CN 104216033 A CN104216033 A CN 104216033A CN 201410229766 A CN201410229766 A CN 201410229766A CN 104216033 A CN104216033 A CN 104216033A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0294—Diffusing elements; Afocal elements characterized by the use adapted to provide an additional optical effect, e.g. anti-reflection or filter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133502—Antiglare, refractive index matching layers
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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
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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Abstract
The invention provides an anti-dazzling hard coating film by which the writing feel of a stylus is good, and attached fingerprints can be easily wiped. To solve the problem, the anti-dazzling hard coating film 1 is provided. The anti-dazzling hard coating film for a touch panel comprises a substrate film 11 and an anti-dazzling hard coating 12 arranged on the surface of one side of the substrate film 11,for the surface of the anti-dazzling hard coating, when a hard-felt-core stylus with a nib diameter of 0.5 mm scans at a speed of 100 mm/min and under the pressure of the weight of 150 g, An initial movement value (A) and a sliding value (B) of the nib resistance (mN) satisfies the relation of the following formula (a); meanwhile, (a) 0<=the initial movement value (A)-the sliding value (B), the oleic acid contact angle of the surface of the anti-dazzling hard coating 12 is below 45 degrees.
Description
Technical field
The present invention relates to the contact panel anti-dazzle hardness film coating using pointer.
Background technology
In recent years in electronic equipment of various, many uses have the contact panel of display device and input media concurrently.The surface of this contact panel, generally for and prevent from damaging and arranging the hard coat film with hard conating.In addition, comprise the various displays of contact panel, the light from external incident can be reflected, be sometimes difficult to see display image clearly, therefore sometimes pass through the surface coarsening of hard coat film, and use the anti-dazzle hardness film coating imparting anti-dazzle function.
In contact panel as above, except with except finger input, also sometimes with the contact panel of pointer input, utilize pointer, because it is thinner than finger, therefore can carry out the high input operation of precision.But the display module of usual contact panel is hard, described in be provided with anti-dazzle hardness film coating contact panel surface be hard too.Therefore, the sense of writing of pointer feels different from writing when writing on paper with pencil or ball pen etc., and difficulty deserves to be called good.
Described in solving, write sense problem, in patent documentation 1, by arranging the pressure sensitive adhesive layer with resiliency between 2 base materials, make contact panel have the elastic deformability of regulation, that improves pointer writes sense.
Prior art document
Patent documentation
Patent documentation 1: patent No. 2868686 publication
Summary of the invention
The problem that invention will solve
But, in patent documentation 1, have the necessity making pressure sensitive adhesive layer have resiliency.Therefore, the restriction of the material for this pressure sensitive adhesive layer can be subject to, or need to make this pressure sensitive adhesive layer relatively thick.Thus, manufacture process becomes complicated, and meanwhile, manufacturing cost increases.
In addition, in contact panel, even if use pointer input mode, hand is also often had to encounter the situation of contact panel, therefore on the surface of contact panel, usually can due to the grease on finger with fingerprint.If anti-dazzle hardness film coating in the past adheres to fingerprint, then due to fingerprint obviously degraded appearance, meanwhile, display image becomes and is difficult to see clearly.
The present invention makes in view of such present situation, object be to provide with anti-dazzle hardness film coating itself can make pointer to write sense good, and not easily find out the anti-dazzle hardness film coating of the fingerprint of attachment.
For solving the means of problem
In order to reach above-mentioned purpose, first, the invention provides anti-dazzle hardness film coating, it is the contact panel anti-dazzle hardness film coating of the antiglare hardcoat possessing base material film and arrange on the face of the side of described base material film, it is characterized in that, to described antiglare hardcoat surface, nib diameter is made to be the relation that add pressure, with the initial motion value (A) of during velocity sweeping of 100mm/ minute nib resistance (mN) and slip value (B) meet following formula (a) of hard felt core pointer in heavy burden 150g weight of 0.5mm, simultaneously
0≤initial motion value (A)-slip value (B) ... (a)
The oleic acid contact angle on described antiglare hardcoat surface is less than 45 ° (inventions 1).
Anti-dazzle hardness film coating described in foregoing invention (invention 1), above-mentioned relation is met by the initial motion value (A) of nib resistance (mN) and slip value (B), the sense of writing of pointer can be made to become good with anti-dazzle hardness film coating itself, in addition, by oleic acid contact angle below 45 °, make the fingerprint of attachment not easily in sight.
In foregoing invention (invention 1), the initial motion value (A) of preferred described nib resistance (mN) and slip value (B) meet the relation (invention 2) of following formula (b).
5≤initial motion value (A)-slip value (B)≤200 ... (b)
In foregoing invention (invention 1, invention 2), described oleic acid contact angle is preferably 25 ° ~ 45 ° (inventions 3).
In foregoing invention (invention 1 ~ invention 3), preferred described antiglare hardcoat is for making to be (the inventing 4) of the 1 μm ~ particulate of 10 μm and the coating composition of levelling agent containing multifunctional (methyl) acrylate, mean grain size.
In foregoing invention (invention 1 ~ invention 4), described particulate is preferably amorphous silica particulate (invention 5).
The effect of invention
It is good that anti-dazzle hardness film coating of the present invention writes sense, not easily sees the fingerprint of attachment simultaneously.
Accompanying drawing explanation
The sectional view of the anti-dazzle hardness film coating of Fig. 1 involved by an embodiment of the present invention.
Fig. 2 is the figure of an example (example about anti-dazzle hardness film coating involved by present embodiment) of display nib measure of resistance result.
Fig. 3 is the figure of another example (example about general anti-dazzle hardness film coating) of display nib measure of resistance result.
Description of reference numerals
1 ... anti-dazzle hardness film coating
11 ... base material film
12 ... antiglare hardcoat
Embodiment
Below, be described about embodiments of the present invention.
As shown in Figure 1, the antiglare hardcoat 12 that the anti-dazzle hardness film coating 1 described in present embodiment comprises base material film 11 and formed on the face of base material film 11 side.This anti-dazzle hardness film coating 1, is arranged at the surface of the contact panel using pointer.
1. physical property
Anti-dazzle hardness film coating 1 described in present embodiment, to the surface (with the face of the discontiguous side of base material film 11) of antiglare hardcoat 12, nib diameter is made to be the hard felt core pointer of 0.5mm, adding pressure, with the initial motion value (A) of nib resistance (mN) during the velocity sweeping of 100mm/ minute and slip value (B), meet the relation of following formula (a) in heavy burden 150g weight.
0≤initial motion value (A)-slip value (B) ... (a)
Herein, the initial motion value (A) of nib resistance refers to, starts the value of the nib resistance of the stage display scanned, as shown in FIG. 2 and 3, be usually detected as peak value in pointer.On the other hand, the slip value (B) of nib resistance refers to, the nib resistance mean value after impact during initial motion terminates under stable scanning mode.Such as, in Fig. 2, sweep length is the mean value of the nib resistance of 10mm ~ 40mm is slip value (B).On the other hand, in Fig. 3, sweep length is the mean value of the nib resistance of 15mm ~ 40mm is slip value (B).
As shown in above-mentioned formula (a), be more than 0mN by deducting the value (difference (A-B) of nib resistance) of slip value (B) from initial motion value (A), anti-dazzle hardness film coating 1, particularly without the need to arranging the pressure sensitive adhesive layer etc. with resiliency, the sense of writing of pointer can be made to become good with anti-dazzle hardness film coating itself.Can think that this is the relation of initial motion value (A) and slip value (B) and the close cause of relation when writing on paper with pencil.From the viewpoint, the lower limit deducting the value of slip value (B) from initial motion value (A) is preferably more than 5mN, is particularly preferably at more than 10mN.Further, on surface the not irregular general hard coat film of tool, do not observe the initial motion value (A) representing peak-peak.In addition, in general anti-dazzle hardness film coating, as shown in Figure 3, although can be observed initial motion value (A), nib resistance increases thereafter, and slip value (B) becomes large, therefore the difference (A-B) of described nib resistance, shows negative value usually.
Have again, initial motion value (A) and slip value (B) are if meet above-mentioned relation, even if then using the pointer different from the material of described hard felt core pointer and nib diameter (such as, polyacetal core pointer) situation time, also can confirm anti-dazzle hardness film coating write sense improve effect.
On the other hand, from initial motion value (A), deduct slip value (B) if value excessive, then have the problem that nib easily weares and teares, may have and start write jammed sensation or sound.From the viewpoint, from initial motion value (A), deduct the higher limit of the value of slip value (B), be preferably below 200mN, be particularly preferably below 150mN, more preferably below 100mN.
In addition, described initial motion value (A) is preferably 200mN ~ 600mN, is particularly preferably 240mN ~ 500mN, more preferably 280mN ~ 450mN.On the other hand, described slip value (B) is preferably 100mN ~ 550mN, is particularly preferably 150mN ~ 490mN, more preferably 200mN ~ 440mN.
In addition, anti-dazzle hardness film coating 1 described in present embodiment, the oleic acid contact angle on its antiglare hardcoat 12 surface is less than 45 °, is preferably 25 ° ~ 45 °, is particularly preferably 30 ° ~ 40 °.Further, oleic acid contact angle refers to, under the state making the drop of oleic acid rest on antiglare hardcoat surface, in the angle that drop is formed at tangent and the described hard coating surface of the contact portion of described hard coating surface, comprise the angle of the side of drop.
By the oleic acid contact angle of anti-dazzle hardness film coating 1 below 45 °, make the fingerprint of attachment not easily (the non-visibility of fingerprint is excellent) in sight.If this oleic acid contact angle is more than 45 °, then the fingerprint adhered to is sharply easily in sight, the degraded appearance of contact panel, and meanwhile, display image becomes not easily to be seen clearly.On the other hand, if oleic acid contact angle is less than 25 °, the nib of pointer is had easily to wear and tear, or the possibility that the resistance to marring on antiglare hardcoat 12 surface (steel wool hardness) is deteriorated.
2. antiglare hardcoat
The antiglare hardcoat 12 of the anti-dazzle hardness film coating 1 in present embodiment, as long as can above-mentioned physical property be played to the initial motion value (A) of nib resistance, slip value (B) and oleic acid contact angle, then formed by any material, but preferably make the coating composition C of following explanation be solidified to form.If utilize coating composition C, easily form the antiglare hardcoat 12 meeting above-mentioned physical property.
Coating composition C in present embodiment is particulate and the levelling agent of 1 μm ~ 10 μm containing multifunctional (methyl) acrylate and mean grain size, and preferably containing mean grain size is further the Nano particles of silicon dioxide of 1nm ~ 300nm.In addition, in this instructions, so-called (methyl) acrylate, means both acrylate and methacrylate.Other similar term too.
(1) multifunctional (methyl) acrylate
Coating composition C contains multifunctional (methyl) acrylate as curability major component.Multifunctional (methyl) acrylate is crosslinking curing by the irradiation of active energy ray.Because the cross-linking density of the product making multifunctional (methyl) acrylate cross linked is high, therefore by using this multifunctional (methyl) acrylate, the antiglare hardcoat 12 formed has desired hardness and resistance to marring.
As multifunctional (methyl) acrylate, such as, can enumerate BDO two (methyl) acrylate, 1,6-hexanediol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, polyglycol two (methyl) acrylate, hydroxy new pentane acid neopentyl glycol two (methyl) acrylate, bicyclopentyl two (methyl) acrylate, caprolactone modification dicyclopentenyl two (methyl) acrylate, ethylene-oxide-modified di(2-ethylhexyl)phosphate (methyl) acrylate, allylation cyclohexyl two (methyl) acrylate, isocyanuric acid ester two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate, dipentaerythritol three (methyl) acrylate, propionic acid modification dipentaerythritol three (methyl) acrylate, pentaerythrite three (methyl) acrylate, epoxy pronane modification trimethylolpropane tris (methyl) acrylate, three (acrylyl oxy-ethyl) isocyanuric acid ester, propionic acid modification dipentaerythritol five (methyl) acrylate, dipentaerythritol six (methyl) acrylate, caprolactone modification dipentaerythritol six (methyl) acrylate etc.These can be used alone one, also can be used in combination of two or more.
From the resistance to marring of antiglare hardcoat 12, and come from and consider with the transparent viewpoint of levelling agent compatibility, the reactive functionality number of multifunctional (methyl) acrylate is preferably 2 ~ 10, is particularly preferably 3 ~ 8.
(2) particulate
Coating composition C contains the particulate that mean grain size is 1 μm ~ 10 μm.By containing such particulate, the antiglare hardcoat 12 formed, its surface becomes uneven surface, plays anti-dazzle function.The mean grain size of described particulate is preferably 2 μm ~ 8 μm, is particularly preferably 3 μm ~ 5 μm.
In addition, described particulate by the particle diameter coefficient of alteration (CV value) shown in following formula, be preferably 10% ~ 70%, be particularly preferably 20% ~ 60%.
Coefficient of alteration (CV value)=(standard deviation particle diameter/mean grain size) × 100 of particle diameter
By the CV value of described particulate in above-mentioned scope, then the sense of writing of pointer becomes better.
Have again, the coefficient of alteration (CV value) of the mean grain size in this instructions and particle diameter, for utilizing laser diffraction and scattering formula particle size distribution device, the dispersion liquid of the 5 quality % concentration utilizing spreading agent methyl ethyl ketone to modulate being used several and the value measured as sample.
Described particulate can be inorganic particles, also can be organic fine particles, but considers from the hardness viewpoint of formed antiglare hardcoat 12, preferred inorganic particles.As inorganic particles, such as, can enumerate the particulate comprising silicon dioxide, aluminium oxide, titanium dioxide, zirconia, tin oxide, indium oxide, cadmium oxide, antimony oxide etc.Wherein, preferred silicon dioxide microparticle.In addition, particulate can be used alone one, also can be used in combination of two or more.
The shape of particulate can be spherical solid shape such as grade, but preferable shape be specifically not amorphous.If utilize unbodied particulate, it is compared with spherical particulate, and more easily meet the initial motion value (A) of described nib resistance and the relation of slip value (B), the sense of writing of pointer becomes better.Therefore, described particulate is particularly preferably amorphous silica particulate.
Relative to multifunctional (methyl) acrylate (or its solidfied material) 100 mass parts, the compounding ratio of described particulate, be preferably 1 mass parts ~ 50 mass parts, be particularly preferably 5 mass parts ~ 30 mass parts, more preferably 10 mass parts ~ 20 mass parts.By the compounding ratio of described particulate more than 1 mass parts, desired anti-glare can be given to the antiglare hardcoat 12 formed.In addition, by the compounding ratio of described particulate below 50 mass parts, the coating of coating composition C becomes good, can form the uniform antiglare hardcoat 12 of film thickness.
(3) levelling agent
Described in present embodiment, coating composition C contains levelling agent.The antiglare hardcoat 12 formed thus does not have strain line shape defect or spot etc., and film thickness is even, presents excellent outward appearance.
As levelling agent, such as can enumerate silicon-type levelling agent, fluorine system levelling agent, acrylic acid series levelling agent, ethene base system levelling agent etc., wherein, consider from levelability and with the compatibility viewpoint of other compositions, preferred silicon-type levelling agent and fluorine system levelling agent.Further, levelling agent can be used alone one, also can be used in combination of two or more.
Silicon-type levelling agent, is preferably dimethyl silicone polymer or modified dimethyl polysiloxane, is particularly preferably dimethyl silicone polymer.If further, the degree of modification of modified dimethyl polysiloxane is high, the outward appearance of the antiglare hardcoat 12 play to make levelability, obtained becomes suitable, need increase its addition.Its result, the sliding of the antiglare hardcoat 12 formed uprises, and cannot meet the initial motion value (A) of described nib resistance and the relation of slip value (B), has the situation of writing sense decline making pointer.
As fluorine system levelling agent, preferably can enumerate and there is perfluoroalkyl or the fluorinated alkenyl compound as main chain or side chain.As city's pin product, the V-8FM etc. that the メ ガ Off ァ ッ Network RS-75 that フ タ ー ジ ェ Application ト 650A, DIC society preferably can enumerating BYK-340, ネ オ ス society manufacture that PVC ッ Network ケ ミ ー ジ ャ パ Application society manufactures manufactures, Osaka Organic Chemical Industry society manufacture, but be not limited to these.
Relative to multifunctional (methyl) acrylate (or its solidfied material) 100 mass parts, the compounding ratio of silicon-type levelling agent, be preferably 0.001 mass parts ~ 1.0 mass parts, be particularly preferably 0.005 mass parts ~ 0.8 mass parts, more preferably 0.01 mass parts ~ 0.1 mass parts.On the other hand, when fluorine system levelling agent, relative to multifunctional (methyl) acrylate (or its solidfied material) 100 mass parts, be preferably 0.1 mass parts ~ 10 mass parts, be particularly preferably 0.5 mass parts ~ 5 mass parts, more preferably 0.8 mass parts ~ 3 mass parts.The compounding ratio of levelling agent in above-mentioned scope, then can keep pointer write sense and the non-visibility of fingerprint good, can fully obtain levelling effect simultaneously.
(4) Nano particles of silicon dioxide
Coating composition C described in present embodiment, preferably containing mean grain size is the Nano particles of silicon dioxide of 1nm ~ 300nm.Coating composition C is by containing this Nano particles of silicon dioxide, and the hardness of the antiglare hardcoat 12 formed improves, and meanwhile, can suppress dazzle.The mean grain size of described Nano particles of silicon dioxide, is preferably 5nm ~ 100nm, is particularly preferably 10nm ~ 50nm.Further, the mean grain size of Nano particles of silicon dioxide is for measuring by zeta potential determination method.
Nano particles of silicon dioxide, to improve for the purpose of dispersed grade, can utilize organism to carry out modification.In addition, Nano particles of silicon dioxide is also preferably the form of organosol (colloidal).By the form for organosol, the dispersiveness of Nano particles of silicon dioxide becomes good, and the homogenieity of the antiglare hardcoat 12 formed and photopermeability improve.
Utilize the modification that organism carries out, usual way can be used to implement.Such as, can by structure as CH
2=C (CH
3) COO (CH
2)
3si (OCH
3)
3silane coupling agent, add in the organosol of Nano particles of silicon dioxide, about 50 DEG C heating, stir several hours, thus, the surface of improved silica particle.According to the dispersiveness of Nano particles of silicon dioxide, structure and the amount of the silane coupling agent used can require that degree is suitably selected.
As the dispersion solvent of described organosol, the methyl ethyl ketone, methyl isobutyl ketone etc. of volatility excellence during compatibility and coating formation preferably with multifunctional (methyl) acrylate and levelling agent.
As described Nano particles of silicon dioxide, market product sold can be used, wherein be preferably オ Le ガ ノ シ リ カ ゾ Le MEK-ST, MIBK-ST etc. of using Nissan Chemical company to manufacture.
Relative to multifunctional (methyl) acrylate (or its solidfied material) 100 mass parts, the compounding ratio of described Nano particles of silicon dioxide, be preferably 1 mass parts ~ 50 mass parts, be particularly preferably 2 mass parts ~ 20 mass parts, more preferably 2 mass parts ~ 10 mass parts.By the compounding ratio of described Nano particles of silicon dioxide more than 1 mass parts, above-mentioned effect can be played well.On the other hand, by the compounding ratio of Nano particles of silicon dioxide below 50 mass parts, suppress the aggegation of Nano particles of silicon dioxide, homogenieity and the photopermeability of formed antiglare hardcoat 12 can be kept well.
(5) other compositions
Coating composition C in present embodiment, except mentioned component, also can contain various adjuvant.As various adjuvant, such as, can enumerate Photoepolymerizationinitiater initiater, ultraviolet light absorber, antioxidant, light stabilizer, antistatic agent, silane coupling agent, anti aging dope, thermal polymerization inhibitor, colorant, surfactant, preserving stabilizer, plastifier, lubricant, defoamer, organic system filler, wetting state improver, coating surface modifying agent etc.
As Photoepolymerizationinitiater initiater, such as benzoin can be enumerated, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin n-butyl ether, benzoin isobutyl ether, acetophenone, dimethylamino acetophenone, 2, 2-dimethoxy-2-phenyl acetophenone, 2, 2-diethoxy-2-phenyl acetophenone, 2-hydroxy-2-methyl-1-phenyl-propane-1-ketone, 1-hydroxycyclohexylphenylketone, 2-methyl isophthalic acid-[4-(methyl thio) phenyl]-2-morpholinyl-propane-1-ketone, 4-(2-hydroxyl-oxethyl) phenyl-2-(hydroxyl-2-propyl group) ketone, benzophenone, p-phenyl benzophenone, 4, 4 '-lignocaine benzophenone, dichloro benzophenone, 2-methylanthraquinone, 2-EAQ, 2-tert-butyl group anthraquinone, 2-amino anthraquinones, 2-methyl thioxanthones, 2-ethyl thioxanthones, CTX, 2, 4-dimethyl thioxanthone, 2, 4-diethyl thioxanthone, benzyl dimethyl ketal, acetophenone dimethyl ketal, p-dimethylaminobenzoic acid ester etc.These can be used alone one, also can be used in combination of two or more.
Relative to multifunctional (methyl) acrylate (or its solidfied material) 100 mass parts, the compounding ratio of described Photoepolymerizationinitiater initiater, selects usually in the scope of 0.2 mass parts ~ 10 mass parts.
By coating composition C described above is coated with base material film 11, is solidified, the antiglare hardcoat 12 meeting above-mentioned physical property can be formed.
The thickness of antiglare hardcoat 12, is preferably 1 μm ~ 15 μm, is particularly preferably 2 μm ~ 10 μm.By the thickness of antiglare hardcoat 12 in above-mentioned scope, resistance to marring and anti-dazzle function effectively can be played.
3. base material film
As base material film 11, as long as suitably select from being suitable for using the contact panel base material film of pointer, preferably select the plastic foil good with antiglare hardcoat 12 compatibility.
As described plastic foil, such as, can enumerate the polyester films such as polyethylene terephthalate, polybutylene terephthalate, PEN, the polyolefin film such as polyethylene film, polypropylene screen, viscose paper, diacetyl cellulose film, tri acetyl cellulose membrane, acetylcellulose butyric ester film, polychloroethylene film, polyvinylidene chlorida film, polyvinyl alcohol film, ethylene-vinyl acetate copolymer film, polystyrene film, polycarbonate membrane, polymethylpentene film, polysulfone membrane, polyetheretherketone film, poly (ether sulfone) film, polyetherimde films, fluororesin film, polyamide membrane, acrylic resin film, urethane resin film, norbornene polymer film, cyclic olefine polymer film, cyclic conjugated diene based polymer film, the plastic foils such as vinyl alicyclic hydrocarbon polymer film, or these stacked film.Wherein, from the viewpoint of physical strength etc., preferred polyethylene terephthalate film, polycarbonate membrane, norbornene-based polymer film etc.
In addition, for described base material film 11, by improve with the adaptation of layer (antiglare hardcoat 12, aftermentioned pressure sensitive adhesive layer etc.) being arranged at its surface for the purpose of, can as required, utilize prime treatment, oxidizing process, further provided for contouring method etc. to carry out surface treatment at one or both sides.As oxidizing process, such as, can list Corona discharge Treatment, chromic acid process, flame treatment, hot air treatment, the process of ozone-ultraviolet line etc., as further provided for contouring method, such as, can list sand-blast, solvent treatment method etc.These surface preparations, suitably can select according to the kind of base material film 11, but preferably utilize Corona discharge Treatment method from the viewpoint of effect and operability etc.
The thickness of base material film 11, is generally 15 μm ~ about 300 μm, is preferably 30 μm ~ about 200 μm.
4. the manufacture method of anti-dazzle hardness film coating
Anti-dazzle hardness film coating 1 described in present embodiment, by the coating composition containing antiglare hardcoat 12, preferred coatings composition C are coated with the coating fluid of solvent as required base material film 11, solidify, antiglare hardcoat 12 can be formed and manufactures.
Solvent can use in order to the adjustment etc. of the improvement of coating, viscosity adjustment, solid component concentration, if dissolve the solvent of multifunctional (methyl) acrylate and levelling agent etc., can use with no particular limitation.
As the object lesson of solvent, the alcohols such as methyl alcohol, ethanol, isopropyl alcohol, butanols, octanol can be enumerated; The ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone; The ester classes such as ethyl acetate, butyl acetate, ethyl lactate, gamma-butyrolacton; The ethers such as glycol monoethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (ethyl cellosolve), diethylene glycol monobutyl ether (butyl cellosolve), propylene glycol monomethyl ether; Benzene, toluene, the aromatic hydrocarbon such as dimethylbenzene; The amide-types etc. such as dimethyl formamide, dimethyl acetamide, 1-METHYLPYRROLIDONE.
The coating of coating composition coating fluid, available usual way carries out, such as, excellent rubbing method, scraper for coating method, roller rubbing method, scraper plate rubbing method, die coating methods, gravure roll rubbing method can be utilized to carry out.If by the coating solution of coating composition, preferably film is carried out the drying of 30 seconds ~ about 5 minutes at 40 DEG C ~ 120 DEG C.
At this, as coating composition C, when coating composition contains levelling agent, be coated with the film of this coating composition, there is no strain line shape defect or spot etc., therefore, film thickness can be formed even, the antiglare hardcoat 12 of excellent appearance.
As coating composition C, when coating composition is the situation of active energy ray-curable, the solidification of coating composition, by a nitrogen atmosphere, carries out the film irradiation ultraviolet radiation of coating composition, electron beam isoreactivity energy line.Ultraviolet irradiation is undertaken by high-pressure mercury-vapor lamp, Fusion H lamp, xenon lamp etc., and the preferred illumination of ultraviolet irradiation amount is 50mW/cm
2~ 1000mW/cm
2, light quantity is 50mJ/cm
2~ 1000mJ/cm
2left and right.On the other hand, the irradiation of electron beam is undertaken by electron-beam accelerator etc., and the exposure of electron beam is preferably about 10krad ~ 1000krad.
5. other
In anti-dazzle hardness film coating 1 described in present embodiment, Ke Yiwei: antiglare hardcoat 12 is outmost surface, has base material film 11 and antiglare hardcoat 12; Also can be: between antiglare hardcoat 12 and base material film 11 or with base material film 11 with on the face of the discontiguous side of antiglare hardcoat 12, also there are other layers.Such as, at base material film 11 with on the face of the discontiguous side of antiglare hardcoat 12, can pressure sensitive adhesive layer be formed, also can stacked stripping film on pressure sensitive adhesive layer further.
As the contact adhesive forming pressure sensitive adhesive layer, have no particular limits, the known contact adhesives such as acrylic pressure-sensitive adhesive, rubber series contact adhesive, silicon-type contact adhesive can be used.In addition, this pressure sensitive adhesive layer, without the need to having resiliency as described in Patent Document 1.
The arithmetic mean surface roughness (Ra) of the antiglare hardcoat 12 of the anti-dazzle hardness film coating 1 described in present embodiment, is preferably 0.01 μm ~ 10 μm, is particularly preferably 0.1 μm ~ 1 μm, more preferably 0.15 μm ~ 0.5 μm.By arithmetic mean surface roughness (Ra) in above-mentioned scope, antiglare hardcoat 12 can play excellent anti-glare.Have again, arithmetic mean surface roughness (Ra) in this instructions is based on JIS B0601-1994, tries to achieve from the roughness curve using contact-type roughmeter (employing the SV3000S4 that ミ Star ト ヨ society manufactures test example) to measure.
The antiglare hardcoat 12 of the anti-dazzle hardness film coating 1 described in present embodiment, preferably, utilizes the steel wool (steel wool) of #0000, at 250g/cm
2heavy burden under, antiglare hardcoat 12 is rubbed back and forth at 10cm and does not produce scratch 10 times.By having this resistance to marring evaluated by steel wool hardness, when anti-dazzle hardness film coating 1 being used for contact panel surperficial, scratch on antiglare hardcoat 12 can be suppressed to occur.
In addition, the haze value of the anti-dazzle hardness film coating 1 described in present embodiment, is preferably less than 30%, is particularly preferably less than 20%, more preferably less than 15%.If haze value is below 30%, then can carry out high-precision refinement, be suitable for using as contact panel.In addition, from the viewpoint of performance anti-glare, haze value is preferably more than 0.5%, is more preferably more than 2%, is particularly preferably more than 6%.Further, the value of haze value for measuring based on JIS K7136-2000.
Embodiment described above, describes for ease of the understanding of the present invention, is not the description limiting the present invention and carry out.Therefore, aim is: each key element disclosed in above-mentioned embodiment, also comprises all design alterations and equivalent that belong to technical scope of the present invention.
Such as, the base material film 11 in anti-dazzle hardness film coating 1 and also can get involved other layer between antiglare hardcoat 12.
Embodiment
Below, further the present invention is specifically described by embodiment etc., but scope of the present invention is not by the restriction of these embodiments etc.
(embodiment 1)
(solid constituent scaled value will be represented as the dipentaerythritol acrylate of multifunctional (methyl) acrylate (Xin Zhong village chemical industry system, NK エ ス テ Le A-DPH) 100 mass parts.Below, for other compositions too.); As 1-hydroxycyclohexylphenylketone (BASF AG's system, イ Le ガ キ ュ ア 184) 4.3 mass parts of Photoepolymerizationinitiater initiater; Silicon dioxide microparticle (Fuji シ リ シ ア chemistry society system, サ イ Network ロ ホ ー PVC ッ Network 702; Mean grain size: 4.1 μm, CV value 48%, amorphous) 11 mass parts; As dimethyl silicone polymer (the eastern レ ダ ウ コ ー ニ Application グ society system of levelling agent, SH28) 0.01 mass parts and Nano particles of silicon dioxide (Nissan Chemical Industries society system, MIBK-ST, mean grain size: 10nm) 8.3 mass parts, mix, obtain coating composition.Diluted by this coating composition propylene glycol monomethyl ether, modulation solid component concentration is the coating fluid of 30%.
At the polyester film with easy bonding coat as base material film, (society's system is spun by Japan, コ ス モ シ ャ イ Application A4300, thickness: 125 μm) easy bonding coat side face on, by above-mentioned obtained coating fluid coiling rod #10 coating, carry out at 70 DEG C 1 minute dry.Then, in a nitrogen atmosphere, ultraviolet lamp (ア イ グ ラ Off ィ ッ Network ス society system is utilized, ア イ グ ラ ン テ ー ジ ECS-401GX type), irradiation ultraviolet radiation under the following conditions, forms the antiglare hardcoat that thickness is 3 μm, obtains anti-dazzle hardness film coating.
[Ultraviolet radiation condition]
Light source: high-pressure mercury-vapor lamp
Bulb power: 2kW
Conveying belt speed: 4.23m/min
Illumination: 240mW/cm
2
Light quantity: 307mJ/cm
2
(embodiment 2)
Except the use level of levelling agent is changed to 0.14 mass parts, formed outside antiglare hardcoat, operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(embodiment 3)
Except the use level of levelling agent is changed to 0.70 mass parts, formed outside antiglare hardcoat, operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(embodiment 4)
Ultraviolet response type fluorine oligomer (ネ オ ス society system, フ タ ー ジ ェ Application ト 650A) is used as levelling agent, its use level is changed to 1.4 mass parts, form antiglare hardcoat, in addition, operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(comparative example 1)
Polyether-modified dimethyl silicone polymer alkane (the PVC ッ Network ケ ミ ー society system of acryloyl group will be had; BYK-UV3500) use as levelling agent; its use level is changed to 1.4 mass parts; form antiglare hardcoat; in addition; operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(comparative example 2)
Except the use level of levelling agent is changed to 1.4 mass parts, formed outside antiglare hardcoat, operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(comparative example 3)
The silicon dioxide microparticle of embodiment 1 is changed to silicon dioxide microparticle (to combine and grind chemical society system, MX-300; Mean grain size: 3.0 μm, CV value 15%, spherical), its use level is changed to 10 mass parts, and coiling rod during coating solution is become 14 from 10, the film thickness of antiglare hardcoat is changed to 5 μm, in addition, operate similarly to Example 1, manufacture anti-dazzle hardness film coating.
(test example 1) (mensuration of nib resistance)
For the antiglare hardcoat surface of the anti-dazzle hardness film coating manufactured in embodiment and comparative example, use universal testing machine (オ リ エ ンテック society system, テ Application シ ロ Application) and pointer, under heavy burden 150g weight, press press mold surface with the nib of pointer, test carry out the condition scanned with the speed of 100mm/min under.Then, from the test figure obtained, obtain initial motion value (A) and the slip value (B) of nib resistance.In addition, the value deducting slip value (B) from the initial motion value (A) of nib resistance is calculated.Further, as pointer, employ the pointer (ワ コ system society system, ACK-2003, nib diameter: 0.5mm) that nib is hard felt core.Show the result in table 1.
(test example 2) (writing sense evaluation)
The anti-dazzle hardness film coating manufactured in embodiment and comparative example is placed on glass substrate, makes antiglare hardcoat side upward.To the antiglare hardcoat surface of this anti-dazzle hardness film coating, in the same manner as test example 1, use the pointer (nib diameter: 0.4mm) of pointer and polyacetal core, evaluate respectively and write sense.In evaluation, by with at 5 overlapping paper, (コ Network ヨ S & T society manufactures, キ ャ Application パ ス ノ ー ト A spongy lead ノ-201A) upper pencil (pencil society of Mitsubishi system, Mitsubishi pencil ユ ニ B), when pressing about 150g weight to write with pen write sense close be chosen as good, by with this write feel gap large be chosen as bad.In addition, evaluate and undertaken by the panelist of 3 people, what 3 people's panesthesis were good is chosen as good, as long as there be being chosen as of 1 people's dysaesthesia bad.Show the result in table 1.
(test example 3) (mensuration of oleic acid contact angle)
Use full rotation type contact angle instrument (consonance interface science society system, DM-701), the oleic acid contact angle on the antiglare hardcoat surface of the anti-dazzle hardness film coating manufactured in embodiment and comparative example is measured under the following conditions.In addition, as oleic acid, employ the oleic acid that Tokyo changes into the manufacture of industrial society.Show the result in table 1.
The drop amount of oleic acid: 2 μ l
Minute: after dripping 3 seconds
Image analytical method: θ/2 method
(test example 4) (the non-visibility evaluation of fingerprint)
By the antiglare hardcoat surface of finger contact in the anti-dazzle hardness film coating manufactured in embodiment and comparative example, by the haze value (%) of the anti-dazzle hardness film coating before and after finger presses, use haze measurement meter (Japanese electricity Se industrial group system, NDH2000), measure based on JIS K7136-2000.Then, obtain from the film haze value after finger presses, deduct the value (mist degree value difference) of the film haze value before finger presses, evaluate according to following benchmark.Further, the haze value of evaluation object, be the mean value when sample 3 people respectively being pressed with finger 1 time measures respectively.Show the result in table 1.In addition, the haze value of anti-dazzle hardness film coating before finger presses is all shown in table 1.
◎: mist degree value difference is less than 0.5
Zero: mist degree value difference is less than more than 0.5 1.0
×: mist degree value difference is greater than 1.0
(test example 5) (ocular estimate)
To the anti-dazzle hardness film coating manufactured in embodiment and comparative example, use 3 wavelength fluorescent lamps, with the naked eye to reflection time and through time outward appearance evaluate.In evaluation, using strain line shape defect or spot few as good, using strain line shape defect or blurring as bad.Show the result in table 1.
(test example 6) (mensuration of surfaceness)
Arithmetic mean surface roughness (the Ra on the antiglare hardcoat surface of the anti-dazzle hardness film coating manufactured in embodiment and comparative example is tried to achieve from the roughness curve measured based on JIS B0601-1994, use contact-type roughmeter (ミ Star ト ヨ society system, SV3000S4); Unit μm).Show the result in table 1.
(test example 7) (resistance to marring evaluation: steel wool hardness)
To the antiglare hardcoat surface of the anti-dazzle hardness film coating manufactured in embodiment and comparative example, use the steel wool of #0000, at 250g/cm
2heavy burden under, rub back and forth 10 times at 10cm, the following benchmark in the surface of this antiglare hardcoat evaluated.
◎: do not change completely before outward appearance and test.
Zero: although do not see scratch, due to coming off of particle, anti-glare reduces.
×: the scratch seeing wire.
[table 1]
As shown in Table 1, the anti-dazzle hardness film coating manufactured in an embodiment, write sense well, and the fingerprint of attachment is not easily in sight, outward appearance and anti-glare are also good in addition.
Industrial utilizability
Anti-dazzle hardness film coating of the present invention, is suitable for the top layer as the contact panel using pointer and uses.
Claims (5)
1. anti-dazzle hardness film coating, it is the contact panel anti-dazzle hardness film coating of the antiglare hardcoat possessing base material film and arrange on the face of the side of described base material film, it is characterized in that, to described antiglare hardcoat surface, nib diameter is made to be the relation that add pressure, with the initial motion value (A) of during velocity sweeping of 100mm/ minute nib resistance (mN) and slip value (B) meet following formula (a) of hard felt core pointer in heavy burden 150g weight of 0.5mm, simultaneously
0≤initial motion value (A)-slip value (B) ... (a)
The oleic acid contact angle on described antiglare hardcoat surface is less than 45 °.
2. anti-dazzle hardness film coating according to claim 1, is characterized in that, the initial motion value (A) of described nib resistance (mN) and slip value (B), meet the relation of following formula (b).
5≤initial motion value (A)-slip value (B)≤200 ... (b)
3. anti-dazzle hardness film coating according to claim 1, is characterized in that, described oleic acid contact angle is 25 ° ~ 45 °.
4. anti-dazzle hardness film coating according to claim 1, is characterized in that, described antiglare hardcoat is will be the 1 μm ~ particulate of 10 μm and the coating composition of levelling agent containing multifunctional (methyl) acrylate, mean grain size.
5. anti-dazzle hardness film coating according to claim 4, is characterized in that, described particulate is amorphous silica particulate.
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| JP2013114209A JP6189642B2 (en) | 2013-05-30 | 2013-05-30 | Touch panel |
| JP2013-114209 | 2013-05-30 |
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| CN201410229766.7A Active CN104216033B (en) | 2013-05-30 | 2014-05-28 | Anti-dazzle hardness film coating |
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| JP (1) | JP6189642B2 (en) |
| KR (1) | KR102269898B1 (en) |
| CN (1) | CN104216033B (en) |
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| CN108070328A (en) * | 2016-11-16 | 2018-05-25 | 琳得科株式会社 | Writing sense improves film |
| CN108070101A (en) * | 2016-11-16 | 2018-05-25 | 琳得科株式会社 | Writing sense improves film |
| CN108070327A (en) * | 2016-11-16 | 2018-05-25 | 琳得科株式会社 | Writing sense improves film |
| CN108459365A (en) * | 2017-02-20 | 2018-08-28 | 琳得科株式会社 | Image display with position detecting function |
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| JP6189642B2 (en) * | 2013-05-30 | 2017-08-30 | リンテック株式会社 | Touch panel |
| JP7004498B2 (en) * | 2016-12-14 | 2022-01-21 | リンテック株式会社 | Writing quality improvement film |
| JP2018173906A (en) * | 2017-03-31 | 2018-11-08 | リンテック株式会社 | Writing feel improvement sheet |
| JP7067900B2 (en) * | 2017-11-06 | 2022-05-16 | リンテック株式会社 | Coat film |
| JP6626950B2 (en) * | 2018-01-29 | 2019-12-25 | 住友化学株式会社 | Optical laminate |
| JP7326734B2 (en) * | 2018-12-10 | 2023-08-16 | 大日本印刷株式会社 | OPTICAL LAMINATED BODY, METHOD FOR MANUFACTURING OPTICAL LAMINATED BODY, LAMINATED MEMBER, AND DISPLAY DEVICE |
| WO2020213156A1 (en) * | 2019-04-19 | 2020-10-22 | 株式会社ダイセル | Surface material for pen input device |
| JP7241653B2 (en) * | 2019-09-18 | 2023-03-17 | 株式会社ダイセル | Antireflection material |
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Also Published As
| Publication number | Publication date |
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| TW201447352A (en) | 2014-12-16 |
| TW201819956A (en) | 2018-06-01 |
| TWI678552B (en) | 2019-12-01 |
| KR102269898B1 (en) | 2021-06-25 |
| TWI702416B (en) | 2020-08-21 |
| KR20140141440A (en) | 2014-12-10 |
| JP6189642B2 (en) | 2017-08-30 |
| JP2014232276A (en) | 2014-12-11 |
| CN104216033B (en) | 2018-09-04 |
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