WO2004011243A1 - 反射防止フィルム及び反射防止処理された物体 - Google Patents
反射防止フィルム及び反射防止処理された物体 Download PDFInfo
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- WO2004011243A1 WO2004011243A1 PCT/JP2003/009499 JP0309499W WO2004011243A1 WO 2004011243 A1 WO2004011243 A1 WO 2004011243A1 JP 0309499 W JP0309499 W JP 0309499W WO 2004011243 A1 WO2004011243 A1 WO 2004011243A1
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- layer
- refractive index
- antireflection
- index layer
- adhesive
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
- Y10T428/257—Iron oxide or aluminum oxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2848—Three or more layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2878—Adhesive compositions including addition polymer from unsaturated monomer
- Y10T428/2891—Adhesive compositions including addition polymer from unsaturated monomer including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
Definitions
- the present invention relates to an antireflection film for transfer and an object subjected to antireflection treatment by transfer, and more particularly, to forming an antireflection layer having excellent antireflection effect and excellent solvent resistance on the surface of an object by transfer.
- the present invention relates to an anti-reflection film for transfer which can be used, and an object which has been subjected to anti-reflection treatment using the anti-reflection film for transfer.
- the present invention also relates to an antireflection film for transfer having an antistatic function in addition to the antireflection function, and an object subjected to antireflection treatment and antistatic treatment by transfer.
- the object to be subjected to the anti-reflection treatment includes an object having poor flexibility or a support such as a glass plate material which is difficult to form a coating layer having a uniform thickness, an object such as a glass ceramic, or the like.
- antireflection treatment is required on the surface of display elements such as CRT, LCD, rear projector screens, and electroluminescent displays, and various display elements are mentioned as specific examples of target objects. Background art
- a support film of an antireflection film exists on the surface of the object, and an antireflection layer exists on the support.
- the presence of the support film causes adverse effects such as a decrease in surface hardness, an increase in haze, a decrease in light transmittance, and an increase in the total thickness of the surface coating.
- These adverse effects are an important problem on the surface of a display element typified by a CRT.
- Japanese Patent Application Laid-Open No. 2000-338036 discloses a base having releasability.
- An anti-reflective antistatic plate having a siloxane-based resin layer as a low-refractive index layer, a metal oxide-containing layer as a high-refractive index layer on the film surface, and an adhesive layer on the film surface A transfer material is disclosed.
- the antireflection layer formed using this transfer material has poor solvent resistance as compared with the antireflection layer formed by sputtering. It is of course important that the surface of various display elements is subjected to an antireflection treatment, but from the practical viewpoint, it is also required to have excellent solvent resistance. Disclosure of the invention
- an anti-reflection layer with a uniform thickness can be easily formed on an inflexible object such as a plate material, and has an excellent anti-reflection effect for light in the visible light region and an excellent anti-reflection property for solvent resistance. It is desired to develop an antireflection film for transfer that can form a layer on an object surface by transfer.
- an object of the present invention is to provide an antireflection layer having a uniform thickness, which has an excellent antireflection effect of light in a visible light region and also has an excellent solvent resistance, on a surface of an object having poor flexibility such as a plate material by transfer.
- An object of the present invention is to provide an antireflection film for transfer and an object subjected to antireflection treatment using the antireflection film for transfer.
- the present inventors have conducted intensive studies and found that the photopolymerization initiator and / or the photosensitizer were present in the high-refractive-index layer containing the metal oxide sulfide fine particles, so that the high-refractive-index layer contained
- the curing reaction during the transfer of the curable component of the impregnated adhesive is accelerated, and a stronger high-refractive-index layer is obtained.
- an anti-reflection layer with excellent solvent resistance is applied to the surface of the object.
- the present invention provides an anti-reflection layer including one or more layers on a support, an adhesive layer on the anti-reflection layer, and at least one of the layers constituting the anti-reflection layer.
- the layer is a high refractive index layer containing metal oxide fine particles and a photopolymerization initiator and / or a photosensitizer, and the adhesive constituting the adhesive layer is an active energy ray-curable adhesive.
- One part of the adhesive is impregnated in the high refractive index layer, and the support is an anti-reflection film for transfer that can be peeled off from the anti-reflection layer.
- the present invention relates to a reflection device comprising: a support; a low refractive index layer provided on the support; and a high refractive index layer having a higher refractive index than the low refractive index layer provided on the low refractive index layer.
- An anti-reflection layer an adhesive layer on the anti-reflection layer, wherein the high refractive index layer contains metal oxide fine particles and a photopolymerization initiator and / or a photosensitizer;
- the adhesive constituting the agent layer is an active energy ray-curable adhesive, and a part of the adhesive is impregnated in the high refractive index layer, and the support is peelable from the antireflection layer.
- This is an anti-reflection film for transfer.
- the present invention is the above-described antireflection film for transfer, wherein the low refractive index layer and the high refractive index layer are each formed by coating.
- the high refractive index layer is formed by applying a coating liquid for a high refractive index layer containing metal oxide fine particles, a photopolymerization initiator, and Z or a photosensitizer.
- the antireflection film for transfer described above.
- the present invention provides the antireflection film for transfer, wherein the high refractive index layer contains 0.01 to 50% by weight of a photopolymerization initiator and / or a photosensitizer based on metal oxide fine particles. is there.
- the metal oxide particles contained in the high refractive index layer are surface-treated with a compound having a crosslinkable functional group, and the adhesive has the crosslinkable functional group and the crosslinkable functional group.
- the above antireflection film for transfer comprising a component capable of undergoing a crosslinking reaction.
- the present invention is the above-described antireflection film for transfer, wherein the crosslinkable functional group of the compound having a crosslinkable functional group is an unsaturated double bond or an epoxy group.
- the present invention is the transfer antireflection film, wherein the metal oxide fine particles contained in the high refractive index layer include conductive fine particles.
- the present invention is an object subjected to antireflection treatment, wherein the antireflection layer of any of the above antireflection films for transfer is provided on the surface by transfer via an adhesive layer.
- the present invention is the above-mentioned antireflection-treated object, wherein the object is a display element.
- FIG. 1 is a cross-sectional view showing a layer configuration example of the antireflection film for transfer of the present invention.
- FIG. 2 is a cross-sectional view showing an example of a layer configuration of an object subjected to antireflection treatment in which the antireflection layer of the antireflection film for transfer of the present invention is provided on the surface by transfer.
- FIGS. 3A and 3B are diagrams for explaining the solvent resistance evaluation in the examples, in which FIG. 3A is a perspective view schematically showing an evaluation device, and FIG. 3B is a side view of the evaluation device.
- FIG. 1 shows an antireflection film for transfer according to the present invention.
- FIG. 3 is a cross-sectional view illustrating an example of a layer configuration of a memory.
- FIG. 2 is a cross-sectional view showing an example of a layer configuration of an object subjected to antireflection treatment in which an antireflection layer of the antireflection film for transfer of the present invention is provided on the surface by transfer.
- the above-mentioned transfer means that the antireflection layer on the support is attached to another object via an adhesive layer.
- an antireflection layer (2) is provided on a support), and an adhesive layer (3) is provided on the antireflection layer (2).
- the antireflection layer (2) is composed of a low refractive index layer (2a) on the support (1) and a high refractive index layer (2b) on the low refractive index layer (2a). 2a) and the high refractive index layer (2b) have different refractive indexes.
- the refractive index is high or low is relative when comparing the refractive indices of the high refractive index layer and the low refractive index layer.
- FIG. 1 shows an example in which the antireflection layer (2) is composed of two layers, a low refractive index layer (2a) and a high refractive index layer (2b).
- the present invention also includes a transfer antireflection film in which the antireflection layer (2) is configured as follows.
- the antireflection layer (2) is between the low refractive index layer (2a) and the high refractive index layer (2b), and has a higher refractive index than the low refractive index layer (2a) and a high refractive index layer (2b).
- the anti-reflection layer (2) is on top of the high-refractive-index layer (2b) on the low-refractive-index layer (2a) shown in Fig. 1 and is lower than the refractive index of this high-refractive-index layer (2b)
- the support ⁇ a flexible resin film which is not particularly limited is suitable.
- the resin film is lightweight and easy to handle.
- the resin film include a polyester film such as polyethylene terephthalate (PET), a polyolefin film such as polyethylene and polypropylene, a polycarbonate film, an acrylic film, and a norpoleneen film (available from JSR Corporation, one ton). And the like.
- PET polyethylene terephthalate
- a polyolefin film such as polyethylene and polypropylene
- a polycarbonate film such as polycarbonate film
- an acrylic film an acrylic film
- the refractive index of the low refractive index layer (2a) is, for example, not less than 1.35 and less than 1.6.
- the physical thickness of the low refractive index layer (2a) is preferably from 0.05 zm to less than 0.5 ⁇ m, and more preferably from 0.0711 to 0.2 im.
- the low refractive index layer (2a) is preferably, for example, a hard coat layer mainly composed of a resin.
- this hard coat layer is located on the outermost surface of the target object surface, and the anti-reflection effect and the scratch resistance effect are obtained.
- a hard coat layer formed using a silicone resin has low adhesion to a resin film such as PET, and is hardly bonded to the support (1).
- the coating layer can be easily peeled off.
- the adhesion to the hard coat layer becomes too low, and the process of applying the high refractive index layer (2b) on the hard coat layer is difficult. Inconveniences such as peeling of one coat layer occur.
- the present invention it is also preferable to increase the adhesion to the hard coat layer by performing corona treatment on the surface of the support (1).
- an easy adhesive may be applied.
- a binder resin is contained in a coating solution for forming the high refractive index layer (2b). If not, or if present, in small amounts, refer to the table of supports (1). It is also preferable to subject the surface to a corona treatment.
- the support (1) including the treated form is used.
- the hard coat layer as the low refractive index layer (2a) should be formed by applying a liquid in which a hard coat agent is dissolved in a solvent as needed, coating the support (1), drying, and curing. Can be.
- the hard coating agent is not particularly limited, and various known hard coating agents can be used.
- a silicone-based, acryl-based, melamine-based, etc. thermosetting type hard coat agent can be used.
- silicone-based hard coat agents are excellent in that high hardness can be obtained.
- an ultraviolet hardening agent such as an unsaturated polyester resin-based or acrylic-based radical polymerizable hard coating agent such as an epoxy-based or vinyl ether-based hardening agent. Is also good.
- the UV-curable hard coat agent is preferred from the viewpoint of productivity such as curing reactivity.
- an acryl-based radical polymerizable octacoat agent is preferable in consideration of curing reactivity and surface hardness.
- the application of the hard coat agent may be performed by a known method such as gravure, reverse roll or the like, a mouth-coat, a main-coat, or a slit die-coat.
- thermosetting hard coat agent After application, dry in an appropriate temperature range and then cure.
- a thermosetting hard coat agent apply appropriate heat.
- silicone-based hard coat agent cure by heating to about 60 to 120 ° C for 1 minute to 48 hours. Let it.
- an ultraviolet-curable hard coat agent it is cured by irradiation with ultraviolet light. UV irradiation is performed using a lamp such as a xenon lamp, a low-pressure mercury lamp, a medium-pressure mercury lamp, a high-pressure mercury lamp, an ultra-high-pressure mercury lamp, a metal halide lamp, a carbon arc lamp, or a tungsten lamp. Irradiation of about / cm 2 is recommended.
- the hard coat layer may contain an ultraviolet absorber.
- the ultraviolet absorber various known ultraviolet absorbers may be used.
- salicylic acid UV Examples of the absorbent include a benzophenone-based ultraviolet absorber, a benzotriazole-based ultraviolet absorber, and a cyanoacrylate-based ultraviolet absorber.
- the hard coat layer may further contain various known additives such as a light stabilizer such as a hindered amine light stabilizer, an antioxidant, an antistatic agent, and a flame retardant, if necessary.
- the ultraviolet absorber and various additives may be added to the hard coat agent and applied.
- High refractive index layer (2W is a layer containing metal oxide fine particles having a high refractive index and containing a photopolymerization initiator and Z or a photosensitizer.
- the refractive index is, for example, from 1.6 to 2.5.
- the physical thickness of the high refractive index layer (2b) is preferably from 0.05 m to less than 0.5 Atm, more preferably It is not less than 0.06 ⁇ 111 and not more than 0.2 m.
- Examples of the metal oxide fine particles contained in the high refractive index layer (2b) include fine particles having a high refractive index such as tin oxide, zinc oxide, titanium oxide, and zirconium oxide, and antimony-doped tin oxide (ATO). ) And conductive fine particles having a high refractive index, such as tin-doped indium oxide (ITO).
- the average particle size of these fine particles is preferably from 10 to 30 nm. Further, the refractive index may be adjusted by using a plurality of these materials.
- the high refractive index layer (2b) contains a photopolymerization initiator and Z or a photosensitizer.
- Various photopolymerization initiators and photosensitizers are selected according to the type of the active energy ray-curable adhesive used in the adhesive layer (3) described later.
- photo-radical initiator When an active energy ray-curable acryl-based adhesive is used as the adhesive, a photo-radical initiator is used as the photopolymerization initiator.
- photo-radical initiators include, for example, Darocure 1173, Irgacure 651, Irgacure 184, Irgacure 907
- a photodynamic thione initiator is used as the photopolymerization initiator.
- light-powered thione initiators include diazonium salts, sulfonium salts, and chlorides.
- An ionic salt such as a dimethyl salt can be used, and it is particularly preferable to use an aromatic ionic salt.
- an iron-arene complex such as a phenoctene derivative, an aryl silanol-aluminum complex, and the like can also be preferably used, and an appropriate one can be selected from these.
- Thylacure UV I-6970, Thylacure UV-I-6974, Thylacure UV I-6990 All manufactured by Dow Chemical Co., USA
- Irgacure 264 Chipa Specialty Chemicals
- CIT-1682 Japan Manufactured by Soda.
- the photosensitizer include aromatic ketones, xanthone, thioxanthone derivatives, phenothiazine, diphenylanthracene, ruprene, and aromatic sulfonium salts, and these are also included in the adhesive described below. It may be a component.
- Thioxanthone derivatives (2-propyl, 2-chloro, etc.) are preferred.
- the high refractive index layer (2b) includes the active energy ray-curable adhesive (active energy ray-curable acrylic adhesive or active energy ray-curable epoxy adhesive) used for the adhesive layer (3). ) Is partially impregnated. The presence of a photopolymerization initiator and / or a photosensitizer in the high-refractive-index layer (2b) increases the refraction by irradiating active energy rays such as ultraviolet rays and visible light during transfer to the target object. The curing reaction of the active energy ray-curable component, particularly the monomer component, contained in the adhesive impregnated in the rate layer (2b) is further promoted. Therefore, high film strength and high adhesion of the high refractive index layer (2b) are obtained, and solvent resistance is improved.
- active energy ray-curable adhesive active energy ray-curable acrylic adhesive or active energy ray-curable epoxy adhesive
- the metal oxide fine particles are preferably surface-treated with a compound having a crosslinkable functional group.
- the crosslinkable functional group is not particularly limited, and is an unsaturated double bond such as a vinyl group, an acryl group, a methacryl group, or an epoxy group.
- Examples of the compound having an unsaturated double bond such as a pinyl group and a (meth) acrylic group include a silane coupling agent having such an unsaturated double bond. More specifically, for example, divinyldimethoxysilane, divinyldi / 3- Toxethoxyethoxysilane, vinyltriethoxysilane, vinyltris-methoxyethoxysilane, r- (meth) acryloxypropyltrimethoxysilane, ⁇ -(meth) acryloxypropyltriethoxysilane, a- (meth) acryloxy Sip mouth pillmethyljetoxysilane and the like.
- the surface treatment of the metal oxide fine particles with such a silane coupling agent can be performed, for example, by stirring both at room temperature in an alcohol such as methanol. It is considered that the alkoxy group of the silane coupling agent is hydrolyzed to form a bond between the hydroxyl residue on the surface of the metal oxide fine particles and si.
- Examples of the compound having an unsaturated double bond such as a (meth) acrylic group include (meth) acrylic acid and its ester compound. More specifically, for example, (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate and the like can be mentioned.
- Such surface treatment of metal oxide fine particles with (meth) acrylic acid or (meth) acrylate can be performed, for example, by stirring both at room temperature in an alcohol such as methanol. It is considered that (meth) acryloyl groups are introduced into the hydroxyl residues on the metal oxide surface. Further, it is considered that even when an acid halide such as (meth) acrylic acid chloride is allowed to act on the metal oxide fine particles, a (meth) acryloyl group is introduced on the surface of the metal oxide.
- the high refractive index layer (The active energy ray-curable component, particularly the monomer component, contained in the adhesive impregnated in 2b) causes a binding reaction with the crosslinkable functional group. Since the photopolymerization initiator and / or the photosensitizer has been added to the high refractive index layer (2b) in advance, it is considered that the photopolymerization initiator and / or the photosensitizer is likely to be localized near the surface-treated fine particles. It is thought that the crosslinking and curing reaction at this time is further promoted.
- the crosslinkable functional group is an unsaturated double bond such as a vinyl group, an acryl group, or a methacryl group
- the acryl-based monomer component contained in the active energy ray-curable acryl-based adhesive is combined with the unsaturated double bond.
- Crosslink by radical reaction If the crosslinkable functional group is an epoxy group, it bonds to the active energy ray-curable epoxy adhesive component by cationic polymerization.
- the high refractive index layer (2b) has a photopolymerization initiator and / or a photosensitizer (photopolymerization initiator) based on metal oxide fine particles for strong film strength, high adhesion and excellent solvent resistance.
- the total amount of the photosensitizer when used together is preferably from 0.01 to 50% by weight, more preferably from 0.1 to 20% by weight, and still more preferably from 1 to 0% by weight. %contains. If it is more than 50% by weight, the filling rate of the metal oxide sulfide fine particles is reduced. On the other hand, if it is less than 0.01% by weight, the effect of adding a photopolymerization initiator and / or a photosensitizer is obtained. Is difficult to obtain.
- the high-refractive-index layer (2b) is a high-refractive-index layer coating solution containing the metal oxide fine particles and the photopolymerization initiator and / or the photosensitizer, preferably in the above-described ratio, and the low-refractive-index layer (2a) It is good to apply by coating on top and drying.
- the coating liquid for a high refractive index layer is prepared by dispersing the metal oxide fine particles and a photopolymerization initiator and / or a photosensitizer in a solvent such as an organic solvent.
- a binder resin may be used, but is preferably not used.
- the amount of the binder resin is suitably 25% by weight or less, preferably 20% by weight or less, based on the total of the binder resin and the fine particles. . If a large amount of the pine resin is used so that the surface of the surface-treated metal oxide fine particles is covered with the pine resin, the adhesive component impregnated into the high refractive index layer (2b) and the fine particles are used.
- the application of the coating solution for the high-refractive-index layer on the low-refractive-index layer (2a) may be performed by a known method such as a gravure, a roll coater such as a reverse opening, a Meyer paper, or a slit die coater. Drying after application may be performed, for example, at an appropriate temperature range of about 40 to 12 for 10 seconds to 5 minutes.
- the high refractive index layer (2b) it is also preferable to compress the high refractive index layer (2b) after coating and drying.
- conductive fine particles such as ATO are used as the metal oxide fine particles
- the compression improves the conductivity of the high refractive index layer (2b).
- the refractive index layer (2b) is formed.
- An adhesive layer (3) is formed on the high refractive index layer (2b).
- the adhesive layer (3) can be formed by applying and drying an adhesive coating solution on the high refractive index layer (2b), and then, if necessary, on the adhesive layer (3).
- a separator may be provided to protect the surface of the adhesive layer until use.
- the thickness of the adhesive layer (3) is, for example, 1 to 100 m, preferably 5 to 20 / m.
- an active energy ray-curable adhesive for example, an active energy ray-curable acryl-based adhesive or an active energy ray-curable epoxy-based adhesive is used as the adhesive.
- an adhesive an adhesive layer with a very tacky feel and a very low fluidity can be obtained simply by applying and drying the adhesive solution.After the adhesive layer is applied onto the transfer target object, the adhesive layer is exposed to ultraviolet light, etc.
- the adhesive is preferably such that a hard cured layer can be obtained by curing with an active energy ray.
- the softening or deterioration of the adhesive layer after sticking and stiffening on the object to be transferred is not preferred.
- the presence of an evening-kick makes it easy to paste the image onto the object to be transferred.
- the fluidity since the fluidity is very small, it is possible to provide a separator for protecting the adhesive layer after the adhesive layer is provided and before bonding.
- the following active energy linearly curable acryl-based adhesive composition is preferable as the adhesive used for the adhesive layer (3).
- An acrylic resin component (P) having a glass transition temperature Tg of 30 ° C or more and a curable acrylic monomer component (M) in a weight ratio of 15 / ⁇ 1 8/2 to 28 Adhesive composition.
- the adhesive composition according to the above 1 or 2, further comprising a photopolymerization initiator and / or a photosensitizer. It is preferable that PZM 8 / 2-2 / 8 in order to obtain good initial tackiness and hardness after curing.
- the acrylic monomer (M) is liquid at room temperature, and the initial tackiness is obtained by the acrylic resin (P) which is solid at room temperature.
- P / M is larger than 8Z2, initial tack tends to decrease. If / is smaller than 278, the viscosity of the adhesive composition solution may be too low, which may cause inconvenience during sticking.
- acrylic resin component (P) examples include acrylic resin 103B and 1BR-305 (manufactured by Taisei Kako Co., Ltd.).
- curable acrylic monomer component (M) examples include tri- or higher functional acrylic monomers such as KAYARAD GP0-303, KAYARAD TMPTA, and KAYARAD THE-330 (all manufactured by Nippon Kayaku Co., Ltd.).
- Various photopolymerization initiators can be used, and examples include KAYACURE DETX-S (manufactured by Nippon Kayaku Co., Ltd.).
- SD-318 manufactured by Dainippon Ink and Chemicals, Inc.
- a curable acrylic monomer component When curing with visible light, a photosensitizer may be added.
- the adhesive coating liquid on the antireflection layer (2) the adhesive is impregnated into the high refractive index layer (2b).
- One component of the curable monomer contained in the adhesive is particularly likely to be impregnated into the high refractive index layer (2b).
- the effect described above can be obtained by impregnating the high refractive index layer (2b) with the adhesive component. In the present invention, it is used in forming the high refractive index layer (2b).
- the high refractive index layer (2b) has a high hardness and a high refractive index layer (2b ) And the adhesive layer (3), as well as excellent solvent resistance.
- the adhesive is impregnated in the high refractive index layer (2b) and reaches the low refractive index layer (2a), the high refractive index layer (2b) and the low refractive index layer (2a) ), And the overall hardness and adhesion of the adhesive layer and the antireflection layer after transfer are improved.
- This effect can be easily obtained when the high refractive index layer (2b) does not contain a binder resin and the film thickness is 2 m or less.
- the high refractive index layer (2b) contains a binder resin, when the film thickness is as thin as less than 0.5 film, and when the film thickness is less than 0.2 am. Is larger.
- the refractive index of the adhesive layer (3) after transfer curing is preferably close to the refractive index of the object to be transferred. If the refractive index difference between the two is large, reflected light may be newly generated at the interface between the two.
- a pigment, a pigment, or the like may be added to the adhesive layer after being dispersed or dissolved.
- the pigment may be selected from known scratch-resistant materials such as siliric force and inorganic materials for coloring. As described above, the antireflection film for transfer of the present invention is obtained.
- the present invention also relates to an object subjected to an antireflection treatment in which the antireflection layer of the above antireflection film for transfer is provided on the surface by transfer via an adhesive layer.
- Fig. 2 shows an example of the layer structure of an anti-reflection treated object obtained using the anti-reflection film for transfer shown in Fig. 1.
- the target object to be subjected to anti-reflection treatment (4) Adhesive layer (3) on the surface
- FIG. 3 is a cross-sectional view showing an example of a layer configuration in which an antireflection layer (2) is provided via a layer.
- the adhesive layer (3) is cured.
- the object (4) to be subjected to antireflection treatment is not particularly limited, Stuff is included.
- Stuff is included.
- an object having poor flexibility or a support such as a plate material on which it is difficult to form a coating layer having a uniform thickness, an object such as glass or ceramics, a resin film, a sheet, a plate, and the like are included.
- antireflection treatment is required for the surface of a display element typified by a CRT, an LCD, a screen for a rear projector, and an electroluminescence display, and various display elements are specific examples of a target object.
- the antireflection film for transfer of the present invention is adhered to the surface of the object (4) to be subjected to antireflection treatment via the adhesive layer (3) such that the support (1) is on the outside.
- the adhesive layer (3) is cured by irradiation with active energy rays such as ultraviolet rays, and the support (1) is peeled off to form an antireflection layer (2) on the surface of the target object (4).
- Active energy rays such as ultraviolet rays
- visible light can also be used.
- the irradiation time is appropriately selected depending on the photosensitive characteristics of the active energy one-sided resin composition used and the type of light beam.
- the hard coat layer (2a) contains an ultraviolet absorber, the hard coat layer (2a) will not adhere to the object even if the hard coat layer (2a) is irradiated with ultraviolet light from the hard coat layer (2a) side. Hardening is unlikely to occur. In this case, if the object is transparent, it is better to irradiate ultraviolet rays from the object side. If the object is not transparent, add a photosensitizer to both the adhesive of the anti-reflection film ⁇ (3) and the high refractive index layer (2b) so that it can be seen from the side of the eighteenth layer (2a). Light irradiation is recommended.
- an antireflection film for transfer having a low refractive index layer (2a), a high refractive index layer (2b) and an adhesive layer (3) in this order on a support (1) was produced.
- Silicone hard coat liquid KP-854 (manufactured by Shin-Etsu Chemical Co., Ltd.) 400 parts by weight of ethanol was added to 100 parts by weight to prepare a coating solution for a low refractive index layer. This coating solution was applied on a 75-m-thick PET film (1), dried, and cured at 100 ° C for 2 hours to form a 0.09 / xm-thick low-refractive-index shoulder (2a).
- UV-curable hard coat agent UVHC-1 105 (manufactured by GE Toshiba Silicone Co., Ltd.) containing acryl-based monomer as the main component.
- Acrylic resin 1BR-305 (manufactured by Taisei Kako Co., Ltd.) 39.5% by weight) 76 parts by weight and 154 parts by weight of methyl ethyl ketone (MEK) were added to prepare an adhesive layer coating solution.
- This coating solution was applied on the high refractive index layer (2b) and dried to form an adhesive layer (3) having a thickness of 10 m. When the adhesive layer was touched with a finger, there was a tacky feeling. Thus, an anti-reflection film for transfer was obtained.
- a 2 mm thick polycarbonate plate was used as an object.
- An adhesive layer (3) is applied to one side of the polycarbonate plate It was pasted with a laminator so that it touched. ⁇ The adhesive layer (3) was hardened by irradiation with external light. The support PET film (1) was peeled off. The adhesive layer (3) was very strong. Thus, as shown in FIG. 2, the antireflection layers (2: 2a, 2b) were provided on the polycarbonate plate (4) via the adhesive layer (3). An antireflection layer was similarly provided on the other surface of the polycarbonate plate.
- An antireflection film for transfer was obtained in the same manner as in Example 1, except that the amount of the photopolymerization initiator KAYACURE DETX-S in the coating solution for the high refractive index layer was changed to 1 part by weight.
- anti-reflection films were provided on both surfaces of the poly-polyponate plate. The adhesive layer was very strong.
- An anti-reflection film for transfer was obtained in the same manner as in Example 1 except that the amount of the photopolymerization initiator KAYACURE DETX-S in the coating solution for the high refractive index layer was changed to 0.5 part by weight.
- an anti-reflection layer was provided on the lower surface of the poly-carbonate plate.
- the adhesive layer was very strong.
- An anti-reflection film for transfer was obtained in the same manner as in Example 1 except that the photopolymerization initiator KAYACURE DETX-S was not included in the coating solution for the high refractive index layer.
- anti-reflection layers were provided on both surfaces of the polycarbonate plate in the same manner as in Example 1.
- the adhesive layer was very strong. The following evaluation was performed about each Sankare obtained by the Example and the comparative example. (Evaluation of antireflection effect)
- a spectrophotometer V-570 (manufactured by JASCO Corporation) was combined with an integrating sphere (manufactured by JASCO Corporation) to measure reflected light having a wavelength of 550 nm and transmitted light having a wavelength of 550 nm.
- the surface of the obtained antireflection layer of Sancare was rubbed with gauze containing ethanol, and the surface of the antireflection layer thereafter was visually observed using an evaluation apparatus described below.
- a poly-iron plate (4) having an anti-reflection layer (3) transferred to only one side was used as a sample.
- Figure 3 (a) is a schematic diagram of the evaluation device, and (b) is a side view of the device.
- one arm (12) was set on the support (11), and a disk (13) having a diameter of 25 mm was set on one end (12a) of the arm (12).
- the length from the support (11) to the one end of the arm (12) was 123 mm.
- a silicone rubber disc (14) having a diameter of 25 mm and a thickness of 10 mm was bonded so that the centers of both discs coincided.
- a silicone rubber disk (14) On a silicone rubber disk (14), a square with a thickness of 2 mm and a side of 10 mm (chamfered) The polycarbonate plate (15) is adhered so that the center of the polycarbonate plate (15) (the intersection of diagonal lines) and the center of the disk (14) are aligned.
- a gauze having a width of 60 mm and a length of 60 mm was prepared and folded into four pieces to obtain a gauze (16) having a width of 15 mm and a length of 60 mm. Both ends of the gauze (16) were fixed to the peripheral surface of the disk (14) so that the gauze (16) covered the poly-power-supply board (15).
- a weight (17) is attached to the other end (12b) of the arm (12) so that the horizontal balance of the arm (12) can be adjusted.
- the polycarbonate plate (4) on which the antireflection layer (3) was transferred to only one surface was cut into a size of 100 mm ⁇ 100 mm. This was placed on a horizontally set rotary table (20) with the antireflection layer (3) facing upward. At that time, it was fixed so that the center of the turntable (20) and the center of the polycarbonate plate (4) (the intersection of the diagonal lines) coincided. The arm (12) was set so as to be parallel to the turntable (20).
- the gauze (16) was sufficiently impregnated with ethanol and pressed against the polycarbonate plate (4) with a weight of 9.8 N. At this time, the distance between the center of the silicone rubber disk (14) and the center of the rotary table (20) was set to 32 mm. The rotating table (20) was rotated at 100 rotations Z for 2 minutes. After the rotation was stopped, ethanol was evaporated, and the surface of the antireflection layer (2) of the polycarbonate plate (4) was visually observed.
- Example 1 The evaluation results of the sample of Example 1 are shown. In the solvent resistance evaluation, no scratch was generated on the surface of the antireflection layer. The sample of Example 1 was excellent in the strength of the antireflection layer even under severe conditions. Reflectance at 550 nm wavelength: 2.0%, Transmittance at 550 nm wavelength: 95%, Pencil hardness: H, Cross-cut tape method Adhesion: 100/100 Was.
- Example 10 shows the evaluation results of the sample of Example 2.
- the anti-reflection layer No scratches occurred on the surface.
- the sample of Example 2 had excellent strength fc of the antireflection layer even under severe conditions.
- the reflectance at a wavelength of 550 nm was 2.0%
- the transmittance at a wavelength of 550 nm was 95%
- the pencil hardness was H
- the adhesion by the cross-cut tape method was 100/100.
- Example 13 shows the evaluation results of the sample of Example 3.
- the sample of Example 3 was excellent in the strength of the antireflection layer even under severe conditions.
- the reflectance at a wavelength of 550 nm was 2.0%
- the transmittance at a wavelength of 550 nm was 95%
- the pencil hardness was H
- the adhesion by the cross-cut tape method was 100/100.
- ADVANTAGE OF THE INVENTION According to this invention, it is excellent in the antireflection effect of the light of a visible light region, and it is excellent also in solvent resistance.
- An antireflection film, and an object that has been subjected to antireflection treatment using the antireflection film for transfer are provided.
- the antireflection effect of light in the visible light region is excellent, and the solvent resistance is also high.
- An antireflection film for transfer capable of providing an antireflection layer having an excellent uniform thickness to the surface of a display element by transfer, and a display element antireflection-treated using the antireflection film for transfer.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/521,757 US7244494B2 (en) | 2002-07-31 | 2003-07-25 | Antireflection film and object having undergone antireflection treatment |
| AU2003252700A AU2003252700A1 (en) | 2002-07-31 | 2003-07-25 | Antireflection film and object having undergone antireflection treatment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-222900 | 2002-07-31 | ||
| JP2002222900A JP4044386B2 (ja) | 2002-07-31 | 2002-07-31 | 反射防止フィルム及び反射防止処理された物体 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004011243A1 true WO2004011243A1 (ja) | 2004-02-05 |
Family
ID=31184936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/009499 Ceased WO2004011243A1 (ja) | 2002-07-31 | 2003-07-25 | 反射防止フィルム及び反射防止処理された物体 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7244494B2 (ja) |
| JP (1) | JP4044386B2 (ja) |
| AU (1) | AU2003252700A1 (ja) |
| WO (1) | WO2004011243A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7964281B2 (en) * | 2004-11-30 | 2011-06-21 | Tdk Corporation | Transparent conductor |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4004886B2 (ja) * | 2002-07-31 | 2007-11-07 | Tdk株式会社 | 反射防止フィルム及び反射防止処理された物体 |
| TWI534458B (zh) * | 2010-10-20 | 2016-05-21 | 3M新設資產公司 | 經保護之低折射率光學元件 |
| CN103408229A (zh) * | 2013-07-31 | 2013-11-27 | 同济大学 | 一种通过调节孔隙率制备二氧化硅宽带增透膜的方法 |
| EP2930012B1 (en) * | 2014-04-08 | 2018-11-14 | Essilor Int | Method for depositing a topcoat layer on a face of a substrate and flexible deposition device |
| JP6943249B2 (ja) * | 2016-08-18 | 2021-09-29 | Agc株式会社 | 積層体、電子デバイスの製造方法、積層体の製造方法 |
| WO2019031786A1 (en) * | 2017-08-08 | 2019-02-14 | Samsung Electronics Co., Ltd. | OPTICAL ELEMENT, POLARIZING ELEMENT, AND DISPLAY DEVICE |
| JP2019198642A (ja) * | 2018-05-11 | 2019-11-21 | 日東電工株式会社 | 貼付材 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09254324A (ja) * | 1996-03-21 | 1997-09-30 | Dainippon Printing Co Ltd | 反射防止フイルム |
| JPH09269403A (ja) * | 1996-03-29 | 1997-10-14 | Nippon Kayaku Co Ltd | ノングレア層を有するシート |
| US5747152A (en) * | 1993-12-02 | 1998-05-05 | Dai Nippon Printing Co., Ltd. | Transparent functional membrane containing functional ultrafine particles, transparent functional film, and process for producing the same |
| JP2000338306A (ja) * | 1999-05-28 | 2000-12-08 | Oike Ind Co Ltd | 反射防止制電板用転写材 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4074095B2 (ja) | 2001-01-26 | 2008-04-09 | Tdk株式会社 | 反射防止フィルム及び反射防止処理された物体 |
| JP4720030B2 (ja) | 2001-06-27 | 2011-07-13 | Tdk株式会社 | 反射防止フィルム及び反射防止処理された物体 |
-
2002
- 2002-07-31 JP JP2002222900A patent/JP4044386B2/ja not_active Expired - Fee Related
-
2003
- 2003-07-25 AU AU2003252700A patent/AU2003252700A1/en not_active Abandoned
- 2003-07-25 WO PCT/JP2003/009499 patent/WO2004011243A1/ja not_active Ceased
- 2003-07-25 US US10/521,757 patent/US7244494B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747152A (en) * | 1993-12-02 | 1998-05-05 | Dai Nippon Printing Co., Ltd. | Transparent functional membrane containing functional ultrafine particles, transparent functional film, and process for producing the same |
| JPH09254324A (ja) * | 1996-03-21 | 1997-09-30 | Dainippon Printing Co Ltd | 反射防止フイルム |
| JPH09269403A (ja) * | 1996-03-29 | 1997-10-14 | Nippon Kayaku Co Ltd | ノングレア層を有するシート |
| JP2000338306A (ja) * | 1999-05-28 | 2000-12-08 | Oike Ind Co Ltd | 反射防止制電板用転写材 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7964281B2 (en) * | 2004-11-30 | 2011-06-21 | Tdk Corporation | Transparent conductor |
Also Published As
| Publication number | Publication date |
|---|---|
| US7244494B2 (en) | 2007-07-17 |
| AU2003252700A1 (en) | 2004-02-16 |
| JP2004058573A (ja) | 2004-02-26 |
| US20050249941A1 (en) | 2005-11-10 |
| JP4044386B2 (ja) | 2008-02-06 |
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