WO2022260143A1 - セキュリティカメラ用防曇膜付きガラス物品、セキュリティカメラ、及びセキュリティカメラ用防曇膜付きガラス物品の製造方法 - Google Patents
セキュリティカメラ用防曇膜付きガラス物品、セキュリティカメラ、及びセキュリティカメラ用防曇膜付きガラス物品の製造方法 Download PDFInfo
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- WO2022260143A1 WO2022260143A1 PCT/JP2022/023353 JP2022023353W WO2022260143A1 WO 2022260143 A1 WO2022260143 A1 WO 2022260143A1 JP 2022023353 W JP2022023353 W JP 2022023353W WO 2022260143 A1 WO2022260143 A1 WO 2022260143A1
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- WO
- WIPO (PCT)
- Prior art keywords
- film
- glass
- fogging film
- security camera
- glass article
- Prior art date
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- 239000011521 glass Substances 0.000 title claims abstract description 133
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000758 substrate Substances 0.000 claims abstract description 54
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 229920000620 organic polymer Polymers 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical group C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims abstract 4
- 238000004140 cleaning Methods 0.000 claims description 36
- 239000005329 float glass Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 7
- 239000002585 base Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 abstract description 6
- 238000011156 evaluation Methods 0.000 description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical group C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 22
- 125000004432 carbon atom Chemical group C* 0.000 description 16
- 239000000178 monomer Substances 0.000 description 11
- 125000000217 alkyl group Chemical group 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 239000010419 fine particle Substances 0.000 description 7
- 229960003237 betaine Drugs 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 125000003545 alkoxy group Chemical group 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000005341 toughened glass Substances 0.000 description 5
- -1 B2O3 Chemical compound 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 239000008119 colloidal silica Substances 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- 238000006124 Pilkington process Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 235000020022 lambic Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 229910011255 B2O3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011354 acetal resin Substances 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000003302 alkenyloxy group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 125000005429 oxyalkyl group Chemical group 0.000 description 1
- 125000005702 oxyalkylene group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0075—Cleaning of glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
- C03C23/006—Other surface treatment of glass not in the form of fibres or filaments by irradiation by plasma or corona discharge
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/75—Hydrophilic and oleophilic coatings
Definitions
- the present invention relates to a glass article with an anti-fog film for security cameras, a security camera, and a method for manufacturing a glass article with an anti-fog film for security cameras.
- Patent Literature 1 discloses an anti-fogging film containing a polyvinyl acetal resin, which is a water-absorbing resin, and a silica component such as colloidal silica.
- an object of the present invention is to provide a glass article with an anti-fogging film suitable for use in security cameras.
- the present invention comprising a glass substrate and an anti-fog coating on the surface of the glass substrate; It was immersed in water at 25° C. for 100 hours and then removed from the water, and the anti-fogging film was exposed for 30 seconds to water vapor generated from water at 90° C. to 100° C. placed at a distance of 60 mm vertically downward from the anti-fogging film.
- QR code In a test to determine whether information in a QR code placed 110 mm away from the anti-fogging film in the downward direction can be read using a camera from the side opposite to the side on which the anti-fogging film is formed, Can read information of QR code having a size of 40 mm square, Provided is a glass article with an anti-fogging film for security cameras.
- the QR code encodes the character string "Rank: B" as the information according to the Japanese Industrial Standard (JIS) X 0510: 2018, with a symbol size of 21 ⁇ 21 modules and a level H error correction specification. It is a two-dimensional code.
- the present invention provides comprising a glass substrate and an anti-fog coating on the surface of the glass substrate;
- the antifogging film contains an organic polymer having a betaine structure, It is immersed in water at 25° C. for 100 hours and then removed from the water, and the anti-fogging film is exposed for 30 seconds to water vapor generated from water at 90° C. to 100° C. placed at a distance of 60 mm vertically downward from the anti-fogging film.
- a transparent continuous film is formed on the surface of the antifogging film exposed to the water vapor when the test is performed.
- a glass article with an anti-fogging film for security cameras are provided.
- the present invention provides camera and a glass article with an anti-fogging film for a security camera according to the present invention, which is placed in front of the lens of the camera; Provide security cameras.
- the present invention provides A method for producing a glass article with an anti-fogging film for a security camera, comprising a glass substrate and an anti-fogging film on the surface of the glass substrate, comprising: applying a coating liquid containing an organic polymer having a betaine structure to the surface of a glass substrate; Heating the glass substrate coated with the coating liquid at a temperature of 90 to 190 ° C.
- a method for manufacturing a glass article with an anti-fogging film for a security camera is provided.
- a glass article with an anti-fogging film suitable for maintaining the imaging function of a security camera is provided.
- FIG. 3 is a cross-sectional view showing another example of the glass article with an antifogging film according to the present embodiment.
- 1 is a schematic diagram showing an example of a security camera according to this embodiment;
- FIG. 4 is a schematic diagram showing another example of the security camera according to the embodiment;
- It is a schematic diagram for demonstrating the outline
- It is another schematic diagram for demonstrating the outline
- QR code size 15 mm ⁇ 15 mm, recorded information “Rank: SS” used for high-temperature steam evaluation. It is an example of a QR code (size 20 mm ⁇ 20 mm, recorded information “Rank: S”) used for high-temperature steam evaluation. It is an example of a QR code (size 30 mm ⁇ 30 mm, recorded information “Rank: A”) used for high-temperature steam evaluation. It is an example of a QR code (size 40 mm ⁇ 40 mm, recorded information “Rank: B”) used for high-temperature steam evaluation.
- the term "main component” means the component with the highest content.
- the “principal surface” of a plate-like article means two surfaces facing opposite sides separated by a predetermined distance called thickness.
- an inorganic component typically a silica component such as colloidal silica
- a silica component such as colloidal silica
- a water-absorbent polymer to compensate for a decrease in abrasion resistance.
- a glass article with an anti-fogging film that achieves both anti-fogging properties and high wear resistance is suitable for use as window glass for automobiles.
- glass articles used with security cameras do not require high levels of abrasion resistance. It is appropriate that glass articles with an anti-fog film for security cameras be developed from a different perspective from glass articles with an anti-fog film for automobiles.
- the anti-fog film does not interfere with the security camera's imaging function even if it is exposed to harsh environments for a long period of time.
- the glass article with an anti-fogging film according to the present embodiment was obtained by further studies from such a viewpoint, and even if the anti-fogging film is exposed to a severe environment, it transmits light without scattering it at a high level. It can exert the function to make
- FIG. 1 is a cross-sectional view showing a glass article with an anti-fogging film according to this embodiment.
- a glass article 1 with an antifogging film includes a plate-like glass substrate 10 , that is, a glass substrate, and an antifogging film 11 formed on the surface of the glass substrate 10 .
- the anti-fogging film 11 is formed on at least part of the surface of the glass substrate 10 , for example, the main surface of the glass substrate 10 .
- the antifogging film 11 may be formed on both main surfaces 10a and 10b of the plate-like glass substrate 10, but as shown in FIG. 1, it is formed only on one main surface 10a. may
- the shape and material of the glass substrate 10 are not particularly limited.
- the glass substrate 10 is, for example, a glass plate.
- the glass composition constituting the glass plate is not particularly limited, and may be soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, or multi-component glass called C glass, E glass, or the like.
- the multicomponent glass contains SiO2 as a main component, and a group consisting of components other than SiO2 , such as B2O3 , Al2O3 , MgO, CaO, Li2O, Na2O , and K2O . It further contains at least one oxide selected from the above.
- the glass plate may be made of silica glass.
- the glass plate may be float glass.
- Float glass is formed by a so-called float method. Since float glass is formed in a float bath with one main surface in contact with molten tin, tin diffuses to the main surface. Thus, float glass has a tin-diffused surface layer on one major surface, called the bottom surface, and this surface layer is absent on the other major surface, called the top surface. Stated from another point of view, in float glass, the concentration of tin on one major surface is higher than the concentration of tin on the other major surface.
- the glass plate may be formed by a manufacturing method other than the float method, such as an overflow down-draw method.
- the major surface 10a may be the top surface, but is preferably the bottom surface. Since the bottom surface has more hydroxyl groups than the top surface, it is suitable as a surface for forming an antifogging film with excellent water resistance.
- the thickness of the glass plate is, for example, 0.5 to 7.0 mm, and may be 0.5 to 5.0 mm.
- the thickness of the glass plate which is non-tempered glass, is preferably 3.5 mm or more. However, in the case of tempered glass, if the thickness is 1.8 mm or more, the glass plate can have sufficient impact resistance.
- the tempered glass may be air-cooled tempered glass or chemically tempered glass.
- the glass substrate 10 may be in the shape of a flat plate whose main surface is flat. However, the main surface of the glass substrate may be curved.
- the glass substrate may be obtained by bending a flat glass substrate.
- the glass base material may be a molded body directly molded from a molten material so as to have a curved surface without passing through a flat glass substrate. An example of such a compact is shown in FIG.
- the main surfaces of the glass substrate 20 shown in FIG. 2 are both curved surfaces, one main surface 20a being concave and the other main surface 20b being convex.
- An anti-fogging film 21 is formed on the main surface 20a, which is a concave surface.
- the main surface 20a faces the lens of a security camera (not shown).
- the glass substrate 20 has a dome shape, and the interior of the dome shape can be used as a space for housing the lens of the security camera (see FIG. 4). In other words, the glass substrate 20 has a concave surface facing the space that houses the lens of the security camera.
- a base film may be formed on the main surface of the glass substrate.
- the base film is interposed between the surface of the glass base material and the anti-fogging film.
- the base film is not particularly limited, but may be, for example, a barrier film that prevents elution of alkali metals from glass.
- the barrier film is composed of, for example, a silica film.
- a film other than the anti-fogging film may be formed on the other main surface.
- films include antireflection films, water-repellent films, hydrophilic films, colored films, and the like.
- the film thickness of the antifogging films 11 and 21 is not limited to a specific value, and is 1.0 to 1000 nm, preferably 10 to 500 nm, particularly preferably 30 to 150 nm.
- the antifogging films 11 and 21 contain, for example, an organic polymer having a betaine structure.
- a betaine structure has a positive charge and a negative charge at positions that are not adjacent to each other in the same molecule, and a positively charged atom is not directly bonded to a dissociable hydrogen atom.
- positively charged atoms include a nitrogen atom, a sulfur atom, and a phosphorus atom.
- An oxygen atom can be exemplified as an atom having a negative charge.
- the betaine structure may be a polymer of betaine monomers as described below. Although the molecular weight of the organic polymer is not particularly limited, the weight average molecular weight may be 100,000 or more.
- the organic polymer may have a main chain and a side chain containing a betaine structure.
- the backbone may comprise a linear carbon chain, eg a linear alkyl group.
- the organic polymer may have a structure in which multiple side chains are attached to one main chain.
- the organic polymer may further contain a silicon atom attached to one end of the main chain.
- the organic polymer may be bonded to the surface of the glass substrate via silicon atoms. This bond can be formed by reaction of silanol groups with hydroxyl groups on the surface of the glass substrate.
- a backbone chemically bonded to the surface of the glass substrate via silicon atoms can extend upward from the surface of the glass substrate to form a so-called polymer brush.
- the anti-fogging film can be a monomolecular film composed of an organic polymer whose side chains contain a betaine structure.
- the organic polymer may be supplied to the surface of the glass substrate, for example, as a compound represented by formula (I) below.
- R in formula (I) is an organic group containing a betaine structure.
- R may comprise a polymer of betaine monomers.
- betaine monomers are sulfoxybetaine monomers, carboxybetaine monomers, and phosphorylbetaine monomers. Each of these betaine monomers may be used alone, or two or more of them may be used in combination.
- R may include the main chain described above and side chains containing betaine structures.
- X in formula (I) is a hydroxyl group, a hydrolyzable group, or a halogen atom.
- hydrolyzable groups include at least one selected from the group consisting of alkoxyl groups, acetoxy groups, alkenyloxy groups, and amino groups.
- Alkoxyl groups include alkoxyl groups having 1 to 4 carbon atoms, specifically methoxy, ethoxy, propoxy and butoxy groups.
- the hydrolyzable group is preferably an alkoxyl group, more preferably an alkoxyl group having 1 to 4 carbon atoms.
- a halogen atom is, for example, chlorine.
- a sulfoxybetaine monomer is represented, for example, by the following formula (II).
- R 1 is a (meth)acryloylaminoalkyl group having an alkyl group of 1 to 4 carbon atoms or a (meth)acryloyloxyalkyl group having an alkyl group of 1 to 4 carbon atoms.
- R 2 and R 3 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, or (meth)acryloyl in which the alkyl group has 1 to 4 carbon atoms; It is an oxyalkyl group.
- R 4 is an alkylene group having 1 to 4 carbon atoms or an oxyalkylene group having 1 to 4 carbon atoms.
- a carboxybetaine monomer is represented, for example, by the following formula (III).
- R 8 and R 9 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- R 10 is a (meth)acryloyloxyalkyl group having 1 to 4 carbon atoms in the alkyl group.
- R 11 is an alkylene group having 1 to 4 carbon atoms.
- a phosphoryl betaine monomer is represented, for example, by the following formula (IV).
- R 12 is a (meth)acryloyloxyalkyl group having 1 to 4 carbon atoms in the alkyl group.
- R 13 is an alkylene group having 1 to 4 carbon atoms.
- R 14 , R 15 and R 16 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- the betaine monomer may have a structure represented by formula (V) below.
- R 20 may be a (meth)acryloyloxyalkyl group having 11 carbon atoms in the alkyl group.
- organic polymer having a main chain and multiple side chains a silicon atom bonded to the end of the main chain, and a side chain containing a betaine structure, for example, LAMBIC 771W manufactured by Osaka Organic Chemical Industry Co., Ltd. is used. can.
- the organic polymer having a betaine structure may be the main component of the antifogging film.
- the anti-fogging film may appropriately contain ultraviolet absorbers, infrared absorbers, leveling agents (surface conditioners), light stabilizers, and the like. However, these components are desirably added in an amount of 5% by mass or less, more preferably 3% by mass or less, and particularly 1% by mass or less of the antifogging film. Since high abrasion resistance is not required, the antifogging film may or may not contain colloidal silica or other silica fine particles.
- the content of silica fine particles in the antifogging film may be, for example, 10 to 60% by mass, but may be limited to less than 5% by mass, further less than 3% by mass, and particularly less than 1% by mass.
- the content of oxide fine particles including silica fine particles may also be at the same level as described above for silica fine particles.
- the antifogging film may or may not contain oxide fine particles typified by silica fine particles.
- the antifogging film according to the present embodiment exerts a function of transmitting transmitted light at a high level without scattering even after being placed in a harsh environment for the antifogging film, for example, in contact with water for a long period of time. sell.
- the anti-fogging film has transparency, water resistance, and hydrophilicity.
- An anti-fogging film with insufficient water resistance may elute its components when in contact with water for a long period of time.
- the anti-fogging film is hydrophilic enough to retain water as a continuous film on its surface, transmitted light can be transmitted without excessive scattering.
- the glass article with an anti-fogging film according to this embodiment can transmit transmitted light without excessive scattering.
- the anti-fogging coated glass article may have a haze ratio of, for example, 5% or less, further 3% or less, particularly 1% or less, and in some cases 0.4% or less.
- the haze ratio is specified in JIS K 7136:2018.
- both water resistance and hydrophilicity can be achieved. These properties can be evaluated by a method called hot steam evaluation, which is described in detail in the Examples section.
- hot steam evaluation which is described in detail in the Examples section.
- high-temperature and excessive water vapor is supplied to the anti-fogging film with the anti-fogging film facing vertically downward.
- a transparent continuous film of water is formed on the surface of the anti-fogging film, which is hydrophilic and excellent in water resistance, in the portion directly exposed to water vapor.
- Whether or not it is a "transparent continuous film” can be determined by visually confirming that continuity as a film is ensured and that the film is not clouded. Cloudiness of the film can be caused by whitening of the film due to insufficient water resistance or condensation on the film surface due to insufficient anti-fogging properties.
- On the surface of the film lacking hydrophilicity water is not retained as a continuous film, but is dispersed and deposited as water droplets. A film with insufficient water resistance is observed to be whitened by contact with high-temperature steam, and elution of film components and film defects may occur. Hydrophilicity of a surface is generally evaluated by the contact angle of water.
- the transparent continuous film may cover 80% or more, or even 90% or more of the surface of the antifogging film exposed to water vapor.
- the glass article with an antifogging film according to the present embodiment preferably has a QR code "A” having a size of 30 mm square, more preferably a size of 20 mm square, even after being immersed in water at room temperature for 100 hours.
- QR code "S” having a size more preferably a QR code "SS” having a size of 15 mm square, and particularly preferably a QR code "SSS” having a size of 10 mm square. It can exhibit hydrophilicity.
- Alkali cleaning is cleaning using an alkaline cleaning liquid.
- the alkaline cleaning liquid is, for example, an aqueous solution containing a water-soluble alkali metal salt.
- the cleaning liquid may contain other components such as, for example, a surfactant.
- Plasma cleaning is cleaning that is exposed to plasma. Plasma cleaning may be cleaning using plasma under a reduced pressure atmosphere or cleaning using atmospheric pressure plasma (AP plasma cleaning). Alkaline cleaning and plasma cleaning may be performed alone or both. In one preferred form, alkaline cleaning and AP plasma cleaning are performed. Thereby, the organic polymer can be more strongly bonded to the surface of the glass substrate.
- the glass substrate is float glass
- the surface of the float glass to which the coating liquid is to be applied is the bottom surface
- at least the bottom surface is subjected to alkali cleaning. Both alkali cleaning and plasma cleaning may be performed on the bottom surface.
- the surface of the float glass to which the coating liquid is to be applied is the top surface
- the top surface is subjected to both alkaline cleaning and plasma cleaning.
- the anti-fogging film can be formed by applying a coating liquid for forming the anti-fogging film onto the surface of a glass substrate and heating the glass substrate on which a coating film has been formed with the coating liquid.
- a coating liquid for forming the anti-fogging film onto the surface of a glass substrate and heating the glass substrate on which a coating film has been formed with the coating liquid.
- Conventionally known materials and methods may be used for the solvent used for preparing the coating liquid and the coating method for the coating liquid. Examples of application methods are spin coating, roll coating, spray coating, dip coating, flow coating, screen printing and brush coating.
- the coating may optionally be dried prior to heating.
- the heating temperature of the glass substrate on which the coating film is formed is, for example, 90°C or higher, preferably 100°C or higher, and in some cases 120°C or higher.
- the heating temperature of the coating film is 190° C. or lower, preferably 180° C. or lower, and particularly preferably 160° C. or lower.
- the heating time is not particularly limited, but may be 5 to 60 minutes, 5 to 45 minutes, 10 to 45 minutes, or 15 to 30 minutes.
- [Security camera] 3 and 4 show an example of a security camera provided with glass articles 1 and 2 with an anti-fogging film according to this embodiment.
- Security cameras 51 and 52 shown in FIGS. 3 and 4 comprise cameras 31 and 41, housings 30 and 40 for fixing the cameras, and glass articles 1 and 2 with anti-fogging films.
- Light entering the lenses of the cameras 31 and 41 from the outside is transmitted through the glass articles 1 and 2 with anti-fogging films.
- An antifogging film is formed on the side facing the cameras 31 and 41 .
- ⁇ Anti-fogging evaluation using high-temperature steam As shown in FIG. 5A, a glass article with an anti-fogging film is placed above a stainless steel heat-retaining cup 80 holding boiled water 70 so that the surface on which the anti-fogging film 11 is formed faces the heat-retaining cup 80 side. 1 was held horizontally. The temperature of water 70 was maintained at 90-100° C. while supplying steam. The distance D 1 between the antifogging film and the water surface was 60 mm.
- the internal space of the heat insulating cup 80 has a cylindrical shape with an opening having a diameter of 64 mm, and the volume of the water 70 is about 130 cc.
- the antifogging film-attached glass article 1 was held on the heat-retaining cup 80 for 30 seconds, and high-temperature steam was supplied to the antifogging film 11 .
- the heat retaining cup 80 was removed, and a mount 95 on which a predetermined QR code 90 was printed was placed instead.
- the distance D 2 between the antifogging film 11 and the mount 95 was set to 110 mm.
- the QR code 90 was photographed with the camera 100 from above through the glass article 1 with the antifogging film, and it was confirmed whether the information possessed by the QR code 90 could be read.
- the distance D3 between the glass substrate 10 and the lens 101 of the camera 100 was set to 80 mm.
- the removal of the heat insulating cup 80 that is, the stoppage of the supply of high-temperature steam to the photographing of the QR code was performed within 30 seconds.
- QR code SSS 10 mm x 10 mm
- information "Rank: SSS” Fig. 6A
- QR code "SS” 15 mm x 15 mm
- information "Rank: SS” Fig. 6B
- QR code "S” 20 mm x 20 mm
- information "Rank: S” Fig. 6C
- information "Rank: A” Fig. 6D
- the QR code "SSS” described in FIG. 6A encodes the above character string as information in accordance with JIS X 0510:2018, with a symbol size of 25 ⁇ 25 modules and level H error correction specifications.
- the QR code "SS” to QR code “B” described in FIGS. 6B to 6E conform to JIS X 0510:2018, and the above characters as information according to the specifications of the symbol size of the 21 ⁇ 21 module and the error correction of level H. Encoded columns.
- Each character string is composed of half-width characters (1-byte code) instead of full-width characters.
- the camera used was Sony's smartphone "Xperia XZ2" (model name: SO-03K, OS: Android (registered trademark) (ver.10)).
- the QR code reading function of the LINE (registered trademark) application (ver.11.7.2) was used to read the QR code.
- Example 1 Preparation of coating liquid
- a coating liquid was prepared by mixing 20% by mass of LAMBIC 771W (manufactured by Osaka Organic Chemical Industry Co., Ltd.) and 80% by mass of purified water.
- a float glass (size: 50 mm ⁇ 50 mm, thickness: 1.1 mm) was used as the glass plate, which had been pre-washed by alkaline washing.
- the coating liquid was applied to the bottom surface of the float glass by a spin coating method (1500 rpm, 10 seconds) to form a coating film.
- the float glass on which the coating film was formed was heated in an oven at 100° C. for 15 minutes to obtain a glass article with an anti-fogging film.
- a 25% potassium hydroxide aqueous solution (LBC-1, manufactured by Leybold) was used as a cleaning liquid for the alkali cleaning.
- Example 2 A glass article with an anti-fogging film according to Example 2 was obtained in the same manner as in Example 1 except for the following points.
- the float glass was pre-cleaned by alkaline cleaning and then further cleaned by atmospheric pressure plasma cleaning (AP plasma cleaning).
- AP plasma cleaning a controller CSM-SSC1 (nozzle: CSM-BG, output: 1000 W, processing time: 10 seconds) manufactured by CSM was used.
- Example 3-6 Glass articles with antifogging films according to Examples 3 to 6 were obtained in the same manner as in Example 1, except that the heating conditions were changed to those shown in Table 1.
- the film thickness of the antifogging film was measured by SEM.
- the film thickness of the antifogging films according to Examples 1 to 6 was about 55 nm.
- Example 7 A glass article with an antifogging film according to Example 7 was obtained in the same manner as in Example 1, except that the conditions in the spin coating method were changed to 300 rpm and 10 seconds. In Example 7, the film thickness of the antifogging film was about 395 nm.
- Example 8 A glass article with an antifogging film according to Example 8 was obtained in the same manner as in Example 1, except that the coating liquid was dropped onto the glass plate instead of the spin coating method.
- Example 9 A glass article with an antifogging film according to Example 8 was obtained in the same manner as in Example 2, except that the coating liquid was applied to the top surface of the float glass.
- Comparative Examples 1 to 5 were carried out in the same manner as in Example 1, except that the cleaning of the float glass, the method of applying the coating liquid, and the heating conditions of the float glass with the coating film formed thereon were changed as shown in Table 2.
- Example 8 in which the anti-fogging film was formed by dropping, the film thickness was slightly thickened to about 330 nm.
- the glass article with an anti-fog film according to each example had a high-temperature steam evaluation of "SSS" after the water immersion test (100 hours).
- SSS high-temperature steam evaluation of "SSS" after the water immersion test (100 hours).
- the transparent continuous film that received the evaluation "SSS" in each example covered 90% or more of the surface of the antifogging film exposed to water vapor, more specifically, substantially all of the surface. was On the other hand, in Comparative Examples 4 and 5, fogging occurred on the film due to dew condensation, and even the largest QR code could not be read.
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Abstract
Description
ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備え、
25℃の水に100時間浸漬させて前記水から取り出し、前記防曇膜から鉛直方向下方に60mm離間させて配置した90℃~100℃の水から発生する水蒸気に前記防曇膜を30秒間曝し、前記防曇膜から前記方向下方に110mm離れて配置したQRコードの情報を前記防曇膜が形成された側とは反対側からカメラを使用して読み取ることができるかを判定する試験において、40mm四方のサイズを有するQRコードの情報を読み取ることができる、
セキュリティカメラ用防曇膜付きガラス物品を提供する。
ここで、前記QRコードは、日本産業規格(JIS)X 0510:2018に従って、21×21モジュールのシンボルサイズ及びレベルHの誤り訂正の仕様により、前記情報として文字列「Rank:B」を符号化した二次元コードである。
ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備え、
前記防曇膜は、ベタイン構造を有する有機ポリマーを含み、
25℃の水に100時間浸漬させて前記水から取り出し、前記防曇膜から鉛直方向下方に60mm離間させて配置した90℃~100℃の水から発生する水蒸気に前記防曇膜を30秒間曝す試験を実施したときに、前記水蒸気に曝された前記防曇膜の前記表面に透明な連続膜が形成される、
セキュリティカメラ用防曇膜付きガラス物品を提供する。
カメラと、
前記カメラのレンズの前方に配置された、本発明によるセキュリティカメラ用防曇膜付きガラス物品と、を備えた、
セキュリティカメラを提供する。
ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備えたセキュリティカメラ用防曇膜付きガラス物品の製造方法であって、
ガラス基材の表面に、ベタイン構造を有する有機ポリマーを含む塗布液を塗布することと、
前記塗布液を塗布した前記ガラス基材を90~190℃の温度で加熱することと、を含む、
セキュリティカメラ用防曇膜付きガラス物品の製造方法を提供する。
ガラス基材10は、その形状及び材料に特段の制限はない。ガラス基材10は、例えば、ガラス板である。
防曇膜11及び21の膜厚は、特定の値に限定されず、1.0~1000nm、好ましくは10~500nm、特に好ましくは30~150nmである。
本実施形態による防曇膜は、防曇膜にとって厳しい環境、例えば水と接触した状態で長い期間置かれた後であっても、高いレベルで透過光を散乱させずに透過させる機能を発揮しうる。この機能を発揮するために、防曇膜は、透明性と共に、耐水性を有し、さらに親水性を有することが望ましい。耐水性が十分でない防曇膜は、水分に長時間接するとその成分が溶出することがある。また、防曇膜は、その表面に水が連続した膜として保持される程度に親水性であれば、透過光は過度に散乱することなく透過しうる。
本実施形態による防曇膜付きガラス物品は、透過光を過度に散乱することなく透過させうる。具体的に、防曇膜付きガラス物品は、例えば、5%以下、さらに3%以下、特に1%以下、場合によっては0.4%以下のヘイズ率を有しうる。ヘイズ率は、JIS K 7136:2018に規定されている。
本実施形態による防曇膜付きガラス物品によれば、耐水性と親水性とが両立しうる。これらの特性は、実施例の欄で詳細を記述する高温水蒸気評価と呼ぶ方法により評価できる。この方法では、防曇膜を鉛直方向下方に向けた状態で防曇膜に高温かつ過剰の水蒸気が供給される。この水蒸気に接した際、親水性かつ耐水性に優れた防曇膜の表面には、水蒸気に直接曝された部分において水の透明な連続膜が形成される。「透明な連続膜」であるかは、水滴ではなく膜としての連続性が確保され、かつその膜が白濁していないことを目視により確認することにより判断できる。膜の白濁は、耐水性の不足による膜の白化により、又は防曇性の不足による膜表面の結露により、生じうる。親水性が不足している膜の表面では、水は、連続膜として保持されず、水滴として分散して付着する。耐水性が不足している膜には、高温水蒸気との接触により膜の白化が観察され、膜の成分の溶出や膜の欠損が生じることもある。表面の親水性は、一般に、水の接触角により評価される。しかし、この評価法では、ごく少量の水滴が膜に滴下されるのみであるから、厳しい環境を十分に再現したことにはならない。なお、透明な連続膜は、水蒸気に曝された防曇膜の表面の80%以上、さらに90%以上を被覆していてもよい。
防曇膜を形成する前に、防曇膜を形成するべきガラス基材の表面を洗浄することが好ましい。洗浄の方法の例は、アルカリ洗浄及びプラズマ洗浄である。アルカリ洗浄は、アルカリ性の洗浄液を用いた洗浄である。アルカリ性の洗浄液は、例えば、水溶性アルカリ金属塩を含む水溶液である。洗浄液は、例えば、界面活性剤等その他の成分を含んでいてもよい。プラズマ洗浄は、プラズマに曝す洗浄である。プラズマ洗浄は、減圧雰囲気下でのプラズマを用いた洗浄であっても、大気圧プラズマを用いた洗浄(APプラズマ洗浄)であってもよい。アルカリ洗浄及びプラズマ洗浄は、単独で実施してもよく、両方を実施してもよい。好ましい一形態では、アルカリ洗浄とAPプラズマ洗浄とが実施される。これにより、ガラス基材の表面に有機ポリマーをより強固に結合できる。
・塗布液を塗布するべきフロートガラスの表面がボトム面であるときには、ボトム面に対して、少なくともアルカリ洗浄を実施する。ボトム面に対して、アルカリ洗浄及びプラズマ洗浄の両方の洗浄を実施してもよい。
・塗布液を塗布するべきフロートガラスの表面がトップ面であるときには、トップ面に対して、アルカリ洗浄及びプラズマ洗浄の両方の洗浄を実施する。
防曇膜は、防曇膜を形成するための塗布液をガラス基材の表面に塗布し、塗布液により塗膜を形成したガラス基材を加熱することにより、成膜できる。塗布液の調製に用いる溶媒、塗布液の塗布方法は、従来から公知の材料及び方法を用いればよい。塗布方法の例は、スピンコート法、ロールコート法、スプレーコート法、ディップコート法、フローコート法、スクリーン印刷法、及び刷毛塗法である。塗膜は、加熱の前に適宜乾燥させてもよい。
図3及び図4に、本実施形態による防曇膜付きガラス物品1及び2を備えたセキュリティカメラの例を示す。図3及び4に示したセキュリティカメラ51及び52は、カメラ31及び41と、カメラを固定するためのハウジング30及び40と、防曇膜付きガラス物品1及び2とを備えている。外部からカメラ31及び41のレンズへと入射する光は、防曇膜付きガラス物品1及び2を透過する。防曇膜は、カメラ31及び41に面する側に形成されている。
室温(約25℃)の純水を保持したプラスチック製容器に防曇膜付きガラス物品を浸漬させ、この状態で24時間又は100時間保持した。その後、防曇膜付きガラス物品を取り出し、ホルダーに立てかけて乾燥させた。乾燥後のサンプルについて、以下の外観評価及び高温水蒸気評価を実施した。
膜面の状態が下記のいずれかに該当するかを肉眼で評価した。
G :試験前と比較して変化なし。
F :若干の白化が観察される。
NG:白化が観察される。
図5Aに示すように、沸騰させた水70を内部に保持したステンレス製保温カップ80の上方に、防曇膜11が形成された面が保温カップ80側を向くように防曇膜付きガラス物品1を水平に保持した。水蒸気を供給する間、水70の温度は90~100℃に維持されていた。防曇膜と水面との間の距離D1は60mmとした。なお、保温カップ80の内部空間は開口部の直径が64mmの円柱状であり、水70の体積は約130ccとした。保温カップ80上で防曇膜付きガラス物品1を30秒間保持して防曇膜11に高温の水蒸気を供給した。その後、図5Bに示すように、保温カップ80を撤去し、これに代えて所定のQRコード90を印刷した台紙95を配置した。防曇膜11と台紙95との間の距離D2は110mmとした。この状態で、防曇膜付きガラス物品1を介してその上方からカメラ100によりQRコード90を撮影し、QRコード90が有する情報を読み取れるかを確認した。ガラス基材10とカメラ100のレンズ101との間の距離D3は80mmとした。保温カップ80の撤去、すなわち高温水蒸気の供給の停止からQRコードの撮影までは30秒以内に実施した。
QRコード「SSS」:10mm×10mm、情報「Rank:SSS」(図6A)
QRコード「SS」 :15mm×15mm、情報「Rank:SS」(図6B)
QRコード「S」 :20mm×20mm、情報「Rank:S」(図6C)
QRコード「A」 :30mm×30mm、情報「Rank:A」(図6D)
QRコード「B」 :40mm×40mm、情報「Rank:B」(図6E)
(塗布液の調製)
LAMBIC 771W(大阪有機化学工業社製)20質量%と精製水80質量%とを混合させることで、塗布液を調製した。
ガラス板として、アルカリ洗浄によって予め洗浄した、フロートガラス(サイズ:50mm×50mm、厚み:1.1mm)を使用した。このフロートガラスのボトム面に、塗布液をスピンコート法(1500rpm、10秒)により塗布し、塗膜を形成した。次に、オーブンの内部で、100℃、15分間の条件で塗膜を形成したフロートガラスを加熱し、防曇膜付きガラス物品を得た。アルカリ洗浄には、洗浄液として25%水酸化カリウム水溶液(LBC-1、レイボルド社製)を用いた。
以下の点以外は、実施例1と同様にして実施例2に係る防曇膜付きガラス物品を得た。フロートガラスをアルカリ洗浄によって予め洗浄した後、さらに大気圧プラズマ洗浄(APプラズマ洗浄)によって洗浄した。APプラズマ洗浄には、CSM社製の制御装置CSM-SSC1(ノズル:CSM-BG、出力:1000W、処理時間:10秒)を用いた。
表1に記載された加熱条件に変更したことを除き、実施例1と同様にして実施例3~6に係る防曇膜付きガラス物品を得た。
スピンコート法における条件を、300rpm、10秒に変更したことを除き、実施例1と同様にして実施例7に係る防曇膜付きガラス物品を得た。実施例7において、防曇膜の膜厚は、395nm程度であった。
スピンコート法に代えて、塗布液をガラス板に滴下したことを除き、実施例1と同様にして実施例8に係る防曇膜付きガラス物品を得た。
フロートガラスのトップ面に塗布液を塗布したことを除き、実施例2と同様にして実施例8に係る防曇膜付きガラス物品を得た。
フロートガラスの洗浄、塗布液の塗布方法、及び塗膜を形成したフロートガラスの加熱条件について、表2に記載のとおりに変更したことを除き、実施例1と同様にして、比較例1~5に係る防曇膜付きガラス物品を得た。ただし、比較例1~3では塗膜の加熱を省略した。また、比較例3では、フロートガラスに、アルカリ洗浄を2回実施した。
防曇膜を形成した初期状態で、上記と同様にして、外観評価を実施し、さらにヘイズ率を測定した。
防曇膜を形成した初期状態において、高温水蒸気評価と同様にして、高温の水蒸気を防曇膜に供給した。その後、防曇膜付きガラス物品を取り出し、ホルダーに立てかけて乾燥させた。乾燥後のサンプルに、再度、高温の水蒸気を防曇膜に供給し、乾燥させることを繰り返し、高温の水蒸気を防曇膜に10回供給した。その後、上記と同様にして、外観評価及び高温水蒸気評価を実施した。なお、高温水蒸気評価において、QRコードの撮影は、11回目の水蒸気の供給を省いて(10回目の水蒸気供給を終えた後直ちに)実施した。
エタノールを主成分とするアルコール溶媒(双葉化学薬品社製「ファインエターA-10」)0.5ccを25mm幅にカットした不織布ウエス(旭化成社製「ベンコットM-3II」)に滴下して染み込ませた後、防曇膜付きガラス物品と共に往復摩耗試験にセットした。ウエスに400gの荷重を加えた状態で、長さ30mmを20往復させた。その後、上記と同様にして、外観評価及び高温水蒸気評価を実施した。
Claims (11)
- ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備え、
25℃の水に100時間浸漬させて前記水から取り出し、前記防曇膜から鉛直方向下方に60mm離間させて配置した90℃~100℃の水から発生する水蒸気に前記防曇膜を30秒間曝し、前記防曇膜から前記方向下方に110mm離れて配置したQRコードの情報を前記防曇膜が形成された側とは反対側からカメラを使用して読み取ることができるかを判定する試験において、40mm四方のサイズを有するQRコードの情報を読み取ることができる、
セキュリティカメラ用防曇膜付きガラス物品。
ここで、前記QRコードは、日本産業規格(JIS)X 0510:2018に従って、21×21モジュールのシンボルサイズ及びレベルHの誤り訂正の仕様により、前記情報として文字列「Rank:B」を符号化した二次元コードである。 - 前記試験において、15mm四方のサイズを有するQRコードの情報を読み取ることができる、請求項1に記載のセキュリティカメラ用防曇膜付きガラス物品。
ここで、前記15mm四方のサイズを有するQRコードは、日本産業規格(JIS)X 0510:2018に従って、21×21モジュールのシンボルサイズ及びレベルHの誤り訂正の仕様により、前記情報として文字列「Rank:SS」を符号化した二次元コードである。 - 前記試験において、10mm四方のサイズを有するQRコードの情報を読み取ることができる、請求項1又は2に記載のセキュリティカメラ用防曇膜付きガラス物品。
ここで、前記10mm四方のサイズを有するQRコードは、日本産業規格(JIS)X 0510:2018に従って、25×25モジュールのシンボルサイズ及びレベルHの誤り訂正の仕様により、前記情報として文字列「Rank:SSS」を符号化した二次元コードである。 - ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備え、
前記防曇膜は、ベタイン構造を有する有機ポリマーを含み、
25℃の水に100時間浸漬させて前記水から取り出し、前記防曇膜から鉛直方向下方に60mm離間させて配置した90℃~100℃の水から発生する水蒸気に前記防曇膜を30秒間曝す試験を実施したときに、前記水蒸気に曝された前記防曇膜の前記表面に透明な連続膜が形成される、
セキュリティカメラ用防曇膜付きガラス物品。 - 前記防曇膜は、ベタイン構造を有する有機ポリマーを含む、請求項1~3のいずれか1項に記載のセキュリティカメラ用防曇膜付きガラス物品。
- 前記ガラス基材は、フロートガラスであり、前記防曇膜は、前記フロートガラスのボトム面に形成されている、請求項1~5のいずれか1項に記載のセキュリティカメラ用防曇膜付きガラス物品。
- 前記ガラス基材は、セキュリティカメラのレンズを収容する空間に接する凹面を有する、請求項1~6のいずれか1項に記載のセキュリティカメラ用防曇膜付きガラス物品。
- カメラと、
前記カメラのレンズの前方に配置された、請求項1~7のいずれか1項に記載のセキュリティカメラ用防曇膜付きガラス物品と、を備えた、
セキュリティカメラ。 - ガラス基材と、前記ガラス基材の表面上の防曇膜と、を備えたセキュリティカメラ用防曇膜付きガラス物品の製造方法であって、
前記ガラス基材の表面に、ベタイン構造を有する有機ポリマーを含む塗布液を塗布することと、
前記塗布液を塗布した前記ガラス基材を90~190℃の温度で加熱することと、を含む、
セキュリティカメラ用防曇膜付きガラス物品の製造方法。 - 前記ガラス基材がフロートガラスであり、
前記塗布液を塗布する前に、
前記塗布液を塗布するべき前記フロートガラスの表面がボトム面であるときには、前記ボトム面に対して、少なくともアルカリ洗浄を実施し、
前記塗布液を塗布するべき前記フロートガラスの表面がトップ面であるときには、前記トップ面に対して、アルカリ洗浄及びプラズマ洗浄の両方の洗浄を実施する、請求項9に記載のセキュリティカメラ用防曇膜付きガラス物品の製造方法。 - 前記ボトム面に対して、アルカリ洗浄及びプラズマ洗浄の両方の洗浄を実施する、請求項10に記載のセキュリティカメラ用防曇膜付きガラス物品の製造方法。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007052710A1 (ja) * | 2005-11-01 | 2007-05-10 | Asahi Glass Company, Limited | 防曇性物品および防曇剤組成物 |
JP2008111050A (ja) * | 2006-10-31 | 2008-05-15 | Central Glass Co Ltd | 防曇性被膜形成用塗布剤及び防曇性被膜の形成方法 |
JP2008239949A (ja) * | 2007-02-28 | 2008-10-09 | Fujifilm Corp | 親水性膜形成用組成物および親水性部材 |
JP2012117025A (ja) | 2010-12-03 | 2012-06-21 | Nippon Sheet Glass Co Ltd | 防曇性膜被覆物品 |
WO2014084219A1 (ja) * | 2012-11-29 | 2014-06-05 | 大阪有機化学工業株式会社 | 親水性コート剤 |
JP2017128661A (ja) * | 2016-01-20 | 2017-07-27 | 三菱マテリアル電子化成株式会社 | 熱線カット膜及びこの熱線カット膜を形成するための塗料 |
JP2020142494A (ja) * | 2019-03-07 | 2020-09-10 | 伊藤光学工業株式会社 | 抗菌透明積層体及びその製造方法 |
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- 2022-06-09 WO PCT/JP2022/023353 patent/WO2022260143A1/ja active Application Filing
- 2022-06-09 CN CN202280041471.XA patent/CN117858852A/zh active Pending
- 2022-06-10 TW TW111121668A patent/TW202313862A/zh unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007052710A1 (ja) * | 2005-11-01 | 2007-05-10 | Asahi Glass Company, Limited | 防曇性物品および防曇剤組成物 |
JP2008111050A (ja) * | 2006-10-31 | 2008-05-15 | Central Glass Co Ltd | 防曇性被膜形成用塗布剤及び防曇性被膜の形成方法 |
JP2008239949A (ja) * | 2007-02-28 | 2008-10-09 | Fujifilm Corp | 親水性膜形成用組成物および親水性部材 |
JP2012117025A (ja) | 2010-12-03 | 2012-06-21 | Nippon Sheet Glass Co Ltd | 防曇性膜被覆物品 |
WO2014084219A1 (ja) * | 2012-11-29 | 2014-06-05 | 大阪有機化学工業株式会社 | 親水性コート剤 |
JP2017128661A (ja) * | 2016-01-20 | 2017-07-27 | 三菱マテリアル電子化成株式会社 | 熱線カット膜及びこの熱線カット膜を形成するための塗料 |
JP2020142494A (ja) * | 2019-03-07 | 2020-09-10 | 伊藤光学工業株式会社 | 抗菌透明積層体及びその製造方法 |
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