WO2007139139A1 - 光記録媒体、色素化合物の利用方法及び可視情報記録方法 - Google Patents
光記録媒体、色素化合物の利用方法及び可視情報記録方法 Download PDFInfo
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- WO2007139139A1 WO2007139139A1 PCT/JP2007/060970 JP2007060970W WO2007139139A1 WO 2007139139 A1 WO2007139139 A1 WO 2007139139A1 JP 2007060970 W JP2007060970 W JP 2007060970W WO 2007139139 A1 WO2007139139 A1 WO 2007139139A1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/266—Sputtering or spin-coating layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/24094—Indication parts or information parts for identification
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
- G11B7/2478—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes oxonol
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
- G11B2007/24612—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes two or more dyes in one layer
Definitions
- the present invention relates to an optical recording medium, and more specifically, an optical recording medium having a visible information recording layer capable of recording visible information by laser light, and a dye for the material of the visible information recording layer
- the present invention relates to a compound utilization method and a visible information recording method for the optical recording medium.
- Optical recording media such as CD-R and DVD-R are provided with an information recording layer for recording electronic information on the substrate, and recorded on the information recording layer on the surface opposite to the recording surface.
- the contents of electronic information such as music titles of music data and labels with visible information such as titles for identifying recorded data, are known.
- Such an optical recording medium is manufactured by printing a title or the like on a circular label sheet in advance by a printer or the like, and pasting the printed label sheet on the surface opposite to the recording surface of the optical recording medium. Is done.
- an optical recording medium that can display a laser marker on the surface opposite to the recording surface on which information recording is performed with the contrast changed between the surface and the background (for example, patents).
- Reference 1 desired visible information can be recorded on the label surface of the optical recording medium by an optical disk drive without separately preparing a printer or the like.
- an optical recording medium capable of performing desired visible information recording on a label surface is a reflective layer.
- An information recording surface capable of recording electronic information via a visible information recording layer and a visible information recording layer capable of recording and displaying visible information are formed.
- the visible information recording layer uses a dye to provide high contrast and visible information. It is configured to be able to record.
- the visible light characteristic of the label surface side force by irradiating a laser beam from the label surface side to a portion visible from the label surface side of the optical disc ⁇ color (hue, lightness, saturation), spectrum] , Reflectivity, transmittance, light scattering, etc. ⁇ are formed by changing the visible light property changing layer (see, for example, Patent Document 2).
- the optical disk is set on a turntable of an optical disk device with its label surface facing the laser light incident side, and the optical disk and the laser beam emitted from the optical pickup force are placed on the optical disk.
- the laser beam emitted from the optical pickup in synchronism with the relative movement is modulated in accordance with image data such as characters and pictures to be imaged and is modulated from the label surface side.
- the visible light property changing layer is irradiated, and the visible light property of the visible light property changing layer is changed by the irradiation to form visible information corresponding to the label surface.
- the visible information forming method on the label surface the visible light characteristic change layer formed by irradiating the laser light of the optical disc device to the visible light visible portion from the label surface side of the optical disc is obtained.
- the characteristics to form visible information such as characters and pictures corresponding to the label surface, writing with a pen and printing with a printer can be made unnecessary.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11 66617
- Patent Document 2 Japanese Patent Laid-Open No. 2002-203321
- optical recording media particularly optical recording media capable of recording visible information such as visible images, require different characteristics from ordinary digital data recording.
- the present invention can provide clear and clear visible information even when applied to a system that is completely different from a conventional drive system, that is, a system that can record visible information on a visible information recording layer. It is an object of the present invention to provide an optical recording medium capable of recording, a method for using a dye compound, and a visible information recording method.
- An optical recording medium according to the first aspect of the present invention is an optical recording medium having a visible information recording layer on a substrate, and the visible information recording layer has a laser beam swinging in a radial direction of the substrate.
- a visible information recording layer in which visible information is recorded by being irradiated a plurality of times on substantially the same locus, and is represented by a dye compound represented by the following general formula (1) and represented by the following general formula (2). It contains at least one dye compound among the dye compounds represented by the following general formula (3).
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represent a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- D 1 in the general formula (1) is a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkoxy carbo group, a cyan group, or a strong rubamoyl group
- D 2 is a hydrogen atom
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 may each independently be a hydrogen atom or an alkyl group.
- D 6 to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or / and D 9 and D 12 may be bonded to form a ring.
- both Y are C (D 13 ) —, the two D 13 may be bonded to each other to form a saturated or unsaturated carbocycle.
- the above monovalent substituent may further have a substituent.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, halogen atom, alkyl group, alkoxy group, aryl group, aryloxy group, cyano group, acylamino group, sulfo group.
- Desirable D 11 and D 12 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- D 14 to D 21 each independently represents a hydrogen atom or a monovalent substituent
- D 22 and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 may be bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D ′′ to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyan group, an acylamino group, a sulfo group.
- Desirable D 22 and D 23 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- the optical recording medium according to the first aspect of the present invention can provide the following optical recording medium.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium comprising a visible information recording layer on which information is recorded, wherein the visible information recording layer contains a dye compound represented by the general formula (1).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium comprising a visible information recording layer on which information is recorded, wherein the visible information recording layer contains a dye compound represented by the general formula (2).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium comprising a visible information recording layer on which information is recorded, wherein the visible information recording layer contains a dye compound represented by the general formula (3).
- [0026] An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is visible when a laser beam oscillates in a radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- a visible information recording layer on which information is recorded wherein the visible information recording layer is a dye compound represented by the general formula (1), a dye compound represented by the general formula (2), and the general formula (1) 3.
- An optical recording medium comprising the dye compound represented by 3).
- the optical information recording medium in the optical information recording medium according to the first aspect of the present invention, a system capable of recording visible information such as a visible image on the visible information recording layer (for example, as disclosed in JP-A-2002-203321). Even when applied to (system), it is possible to record clear visual information with high contrast, and the recorded visual information has excellent robustness.
- the required characteristics are different from those of normal digital data recording.
- digital data recording pits are formed by a single laser beam irradiation. Therefore, the required characteristics differ between an optical recording medium for normal digital data recording and an optical recording medium capable of recording visible information.
- the guide groove may not be used in the usage state of the dye of the visible information recording layer.
- the dye is required to form large pits and make the unrecorded portion between adjacent tracks as narrow as possible rather than to form regular and uniform shaped pits.
- the visible information recording method is a system in which laser light is irradiated a plurality of times on substantially the same locus as in the system shown in Japanese Patent Laid-Open No. 2002-203321 or the radial direction of the optical disk. There is a difference that it is used in a system that swings (vibrates) and is irradiated multiple times on Z or almost the same trajectory.
- the first aspect of the present invention may further contain a phthalocyanine dye represented by the following general formula (4)! ,.
- R ⁇ i to R a 8 and R ⁇ i to R ⁇ 8 each independently represent a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, It represents a metal, a metal oxide, or a metal having a ligand.
- an optical recording medium is an optical recording medium having a visible information recording layer on a substrate, and the visible information recording layer is represented by the following general formula (1).
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represent a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- D 1 in the general formula (1) is a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkoxy carbo group, a cyan group, or a strong rubamoyl group
- D 2 is a hydrogen atom
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 may each independently be a hydrogen atom or an alkyl group.
- D ° to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or Z and D 9 and D 12 are bonded. And may form a ring.
- D 13 represents a hydrogen atom, an alkyl group, Ariru group, an alkoxy group, Ariruokishi group, a ⁇ amino group) o
- X and Y are both C (D 13 ) —, the two D 13 may be bonded to each other to form a saturated or unsaturated carbocycle.
- the above monovalent substituent may further have a substituent.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyano group, an acylamino group, a sulfo group.
- Desirable D 11 and D 12 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- D 14 to 1 each independently represent a hydrogen atom or a monovalent substituent
- D 22 and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 may be bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D ′′ to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyan group, an acylamino group, a sulfo group.
- each of D 22 and D 23 is independently a hydrogen atom, an alkyl group, or an aryl group.
- the optical recording medium according to the second aspect of the present invention can provide the following optical recording medium.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer contains a dye compound represented by the general formula (1).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer contains a dye compound represented by the general formula (2).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer contains a dye compound represented by the general formula (3).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a dye compound represented by the general formula (1), a dye compound represented by the general formula (2), and An optical recording medium comprising the dye compound represented by the general formula (3).
- the optical information recording medium according to the second aspect of the present invention is applied to a system capable of recording visible information on the visible information recording layer (for example, a system shown in Japanese Patent Laid-Open No. 2002-203321). Even in such a case, it is possible to record clear visual information with high contrast, and the recorded visual information has excellent robustness.
- the second aspect of the present invention may further contain a phthalocyanine dye represented by the following general formula (4)! .
- R ⁇ i to R a 8 and R ⁇ i to R ⁇ 8 each independently represent a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, It represents a metal, a metal oxide, or a metal having a ligand.
- the scale of the general formula ⁇ ! ⁇ And! ⁇ ⁇ ! ⁇ Is independently hydrogen atom, halogen atom, cyano group, nitro group, formyl group, carboxyl group, sulfo group, alkyl group having 1 to 20 carbon atoms, aryl group having 6 to 14 carbon atoms, carbon atom Aralkyl group having 7 to 15 carbon atoms, 1 to carbon atoms: L0 heterocycle group, alkoxy group having 1 to 20 carbon atoms, aryloxy group having 6 to 14 carbon atoms, and acyl having 2 to 21 carbon atoms Group, carbon atoms 1-20 alkyl sulphonyl group, 6-20 aralkyl sulphonyl group, 1-25 carbamoyl group, 0-32 sulphamoyl group, alkoxy carboi group having 2-21 s carbon atoms Group, an arylcarbonyl group having 7 to 15 carbon atoms, an acylamin
- an optical recording medium is an optical recording medium having a visible information recording layer on a substrate, and the visible information recording layer has a laser beam in substantially the same locus. It is a visible information recording layer in which visible information is recorded by being irradiated a plurality of times. It is a pigment compound represented by the following general formula (1), a dye compound represented by the following general formula (2), It is characterized in that it contains at least one dye compound among the dye compounds represented by
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represent a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- D 1 in the general formula (1) is a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkoxy carbo group, a cyan group, or a strong rubamoyl group
- D 2 is a hydrogen atom
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 may each independently be a hydrogen atom or an alkyl group.
- D 6 to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or / and D 9 and D 12 may be bonded to form a ring.
- both Y are C (D 13 ) —, the two D 13 may be bonded to each other to form a saturated or unsaturated carbocycle.
- the above monovalent substituent may further have a substituent.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, halogen atom, alkyl group, alkoxy group, aryl group, aryloxy group, cyano group, acylamino group, sulfo group.
- Desirable D 11 and D 12 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- D 14 ⁇ ! Each independently represents a hydrogen atom or a monovalent substituent, and ⁇ "and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 are bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D ′′ to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyan group, an acylamino group, a sulfo group.
- Desirable D 22 and D 23 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- the optical recording medium according to the second aspect of the present invention can provide the following optical recording medium.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising a dye compound represented by the following general formula (1):
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording comprising a dye compound represented by the following general formula (2): Recording media.
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising a dye compound represented by the following general formula (3):
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising the dye compound represented by the general formula (1) and the dye compound represented by the general formula (2).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising the dye compound represented by the general formula (1) and the dye compound represented by the general formula (3).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising a dye compound represented by the general formula (2) and a dye compound represented by the general formula (3).
- An optical recording medium having a visible information recording layer on a substrate, wherein the visible information recording layer is a visible information recording layer in which visible information is recorded by irradiating a laser beam multiple times on a substantially same locus,
- An optical recording medium comprising a dye compound represented by the general formula (1), a color compound represented by the general formula (2), and a dye compound represented by the general formula (3) .
- the visible information is recorded on the visible information recording layer. Even when applied to a system capable of recording (for example, the system disclosed in Japanese Patent Application Laid-Open No. 2002-203321), it is possible to record clear visible information with high contrast, and the recorded visual information is excellent in robustness. It will be a thing.
- the third aspect of the present invention (21st optical recording medium to 27th optical recording medium), it may further contain a phthalocyanine dye represented by the following general formula (4)! .
- R ⁇ i to R a and R ⁇ to R ⁇ each independently represent a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, a metal, a metal It represents an oxide or a metal having a ligand.
- the general formula! ⁇ ⁇ ! ⁇ And! ⁇ ⁇ ! ⁇ is independently hydrogen atom, halogen atom, cyano group, nitro group, formyl group, carboxyl group, sulfo group, alkyl group having 1 to 20 carbon atoms, aryl group having 6 to 14 carbon atoms, carbon Aralkyl group having 7 to 15 atoms, 1 to carbon atoms: L0 hetero ring group, alkoxy group having 1 to 20 carbon atoms, aryloxy group having 6 to 14 carbon atoms, 2 to 21 carbon atoms Acyl group, C1-C20 alkyl sulphone group, C6-C20 allyl sulphone group, C1-C25 force rubermoyl group, C-C32 sulfamoyl group, carbon atom number 2 21 to 21 alkoxycarbonyl group, 7 to 15 carbon atom arylcarbonyl group, 2 to 21 carbon atom acylamino group
- the method for using the dye compound according to the fourth aspect of the present invention is the use of a dye compound that uses a dye compound as a material for the visible information recording layer in an optical recording medium having a visible information recording layer on a substrate.
- the visible information recording layer is a visible information recording layer in which laser light oscillates in the radial direction of the substrate and the visible information is recorded by being irradiated a plurality of times on substantially the same locus.
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represent a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- D 1 in the general formula (1) is a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkoxy carbo group, a cyan group, or a strong rubamoyl group
- D 2 is a hydrogen atom
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 may each independently be a hydrogen atom or an alkyl group.
- D 6 to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or / and D 9 and D 12 may be bonded to form a ring.
- Y are C (D 13 ) —, the two D 13 may be bonded to each other to form a saturated or unsaturated carbocycle.
- the above monovalent substituent may further have a substituent.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, halogen atom, alkyl group, alkoxy group, aryl group, aryloxy group, cyano group, acylamino group, sulfo group.
- Desirable D 11 and D 12 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- D 14 ⁇ ! Each independently represents a hydrogen atom or a monovalent substituent, and ⁇ "and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 are bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D ′′ to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyan group, an acylamino group, a sulfo group.
- D 22 and D 23 are preferably each independently a hydrogen atom, an alkyl group, or an aryl group.
- the method for using the coloring compound according to the third aspect of the present invention can provide the following usage methods.
- the visible information recording layer is a method of using a dye compound that uses a dye compound as a material, and the visible information recording layer is visible when the laser beam oscillates in the radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- a method of using a dye compound characterized in that a visible information recording layer on which information is recorded and containing the dye compound represented by the general formula (2) is used as a material of the visible information recording layer .
- the dye compound represented by the general formula (1) and the general formula (2) A method of using a dye compound, which comprises using a dye compound represented by formula (2) as a material for the visible information recording layer.
- the visible information recording layer is a method of using a dye compound that uses a dye compound as a material, and the visible information recording layer is visible when the laser beam oscillates in the radial direction of the substrate and is irradiated a plurality of times on substantially the same locus.
- a visible information recording layer in which visible information is recorded by irradiating a plurality of times on a substantially identical locus and oscillating in a radial direction, the dye compound represented by the general formula (1), the general formula (2) ) And a dye compound containing the dye compound represented by the general formula (3) are used as a material for the visible information recording layer.
- first utilization method to seventh utilization method it may further contain a phthalocyanine dye represented by the following general formula (4)!
- R ⁇ i to R a 8 and R ⁇ i to R ⁇ 8 each independently represents a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, It represents a metal, a metal oxide, or a metal having a ligand.
- ⁇ ⁇ ! ⁇ And! ⁇ ⁇ ! ⁇ is independently hydrogen atom, halogen atom, cyano group, nitro group, formyl group, carboxyl group, sulfo group, alkyl group having 1 to 20 carbon atoms, aryl group having 6 to 14 carbon atoms, carbon Aralkyl group having 7 to 15 atoms, 1 to carbon atoms: L0 hetero ring group, alkoxy group having 1 to 20 carbon atoms, aryloxy group having 6 to 14 carbon atoms, 2 to 21 carbon atoms Acyl group, C1-C20 alkyl sulphone group, C6-C20 allyl sulphone group, C1-C25 force rubermoyl group, C-C32 sulfamoyl group, carbon atom number
- the visible information recording method provides a dye compound represented by the following general formula (1), a dye compound represented by the following general formula (2), A visible information recording layer containing at least one dye compound among the dye compounds represented by the general formula (3) is used.
- the visible information recording layer is characterized by recording visible information by irradiating the visible information recording layer with laser light in the radial direction of the substrate and irradiating substantially the same locus a plurality of times.
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represent a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- D 1 in the general formula (1) is a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an alkoxy carbo group, a cyan group, or a strong rubamoyl group
- D 2 is a hydrogen atom
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 may each independently be a hydrogen atom or an alkyl group.
- D 6 to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or / and D 9 and D 12 may be bonded to form a ring.
- Y are C (D 13 ) —, the two D 13 may be bonded to each other to form a saturated or unsaturated carbocycle.
- the above monovalent substituent may further have a substituent.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, halogen atom, alkyl group, alkoxy group, aryl group, aryloxy group, cyano group, acylamino group, sulfo group.
- Desirable D 11 and D 12 are each independently preferably a hydrogen atom, an alkyl group, or an aryl group.
- D 14 ⁇ ! Each independently represents a hydrogen atom or a monovalent substituent, and ⁇ "and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 are bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D ′′ to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyano group, an acylamino group, a sulfur group.
- D 22 and D 23 are preferably each independently a hydrogen atom, an alkyl group, or an aryl group.
- the visible information recording method according to the fifth aspect of the present invention can provide the following visible information recording method.
- the laser light is swayed in the radial direction of the substrate on the visible information recording layer.
- a visible information recording method characterized by recording visible information by irradiating a substantially identical locus a plurality of times.
- a visible information recording method characterized by recording visible information by irradiating a substantially identical locus a plurality of times.
- the laser light is swayed in the radial direction of the substrate on the visible information recording layer.
- a visible information recording method characterized by recording visible information by irradiating a substantially identical locus a plurality of times.
- the visible information recording layer A visible information recording method, wherein visible information is recorded by oscillating a laser beam in a radial direction of the substrate and irradiating a substantially same locus a plurality of times.
- the dye compound represented by the general formula (1) and the general formula (3) With respect to an optical recording medium having a visible information recording layer containing a dye compound, the visible information recording layer is irradiated with laser light in the radial direction of the substrate and irradiated to a substantially same locus multiple times.
- the visible information recording method characterized by recording.
- the visible information recording layer A visible information recording method, wherein visible information is recorded by oscillating a laser beam in a radial direction of the substrate and irradiating a substantially same locus a plurality of times.
- Visible information recording layer containing a dye compound represented by the general formula (1), a dye compound represented by the general formula (2) and a dye compound represented by the general formula (3) on a substrate
- the visible information recording layer is configured to record visible information by irradiating the visible information recording layer with a laser beam in the radial direction of the substrate and irradiating a plurality of times on substantially the same trajectory.
- Information recording method a dye compound represented by the general formula (1), a dye compound represented by the general formula (2) and a dye compound represented by the general formula (3) on a substrate.
- the system can record visible information on the visible information recording layer (for example, the system shown in JP-A-2002-203321). Even when applied, it is possible to record clear visual information with high contrast, and the recorded visual information has excellent robustness.
- a phthalocyanine dye represented by the following general formula (4) may be further contained.
- R ⁇ i to R a and R ⁇ to R ⁇ each independently represent a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, metal, metal It represents an oxide or a metal having a ligand.
- R in ai ⁇ R a 8 and R ⁇ i ⁇ R ⁇ 8 are each independently a hydrogen atom in the general formula (4), halogen atom, Shiano group, a nitro group, a formyl group, a carboxyl group, a sulfo group , An alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aralkyl group having 7 to 15 carbon atoms, a heterocyclic group having 1 to 10 carbon atoms, and 1 to 20 carbon atoms Alkoxy group, aryl group having 6 to 14 carbon atoms, acyl group having 2 to 21 carbon atoms, alkyl group having 1 to 20 carbon atoms, alkyl sulfo group having 6 to 20 carbon atoms, carbon atom number 1 -25 morubamoyl group, 0-32 carbon atom sulfamoyl group, 2-21 carbon atom carboxyl group, 7-15 carbon atom
- the present invention is applied to a system capable of recording visible information on a visible information recording layer.
- a system capable of recording visible information on a visible information recording layer is possible to record clear visual information with high contrast, and the recorded visual information is excellent in robustness.
- FIG. 1 is a cross-sectional view showing an optical recording medium according to the present embodiment with a part thereof omitted.
- FIG. 2 is a cross-sectional view showing a part of the visible information recording medium part of the optical recording medium according to the present embodiment with a part omitted.
- FIG. 3 is a cross-sectional view showing a part of the information recording medium part of the optical recording medium according to the present embodiment with a part omitted.
- FIG. 4 is a process block diagram showing an example of a method for manufacturing an optical recording medium according to the present embodiment.
- FIG. 5 is a table showing the contrast evaluation of optical recording media according to Examples 1 to 10. BEST MODE FOR CARRYING OUT THE INVENTION
- an optical recording medium 10 includes a transparent first substrate and a visible information recording layer 14 formed on the first substrate 12.
- the visible information is recorded on the visible information recording layer 14 by the laser beam 16 irradiated from the first substrate 12 side.
- the optical recording medium 10 has a configuration in which a visible information recording medium part 18 and an information recording medium part 20 are bonded via an adhesive layer 22.
- the visible information recording medium unit 18 includes the first substrate 12 having a flat surface.
- a visible information recording layer 14 is formed on the surface of the first substrate 12, a first reflective layer 24 is formed on the visible information recording layer 14, and a first protective layer 26 is formed on the first reflective layer 24. Is formed.
- the information recording medium unit 20 has a transparent second substrate 30 having a pregroup 28 formed on the surface thereof.
- an information recording layer 32 is formed along the unevenness of the pre-group 28, a second reflective layer 34 is formed on the information recording layer 32, and on the second reflective layer 34 A second protective layer 36 is formed.
- the optical recording medium 10 is configured by facing the second protective layer 36 and bonding the adhesive layer 22 between the visible information recording medium section 18 and the information recording medium section 20. Is done.
- the information recording layer 32 is recorded with data by the laser beam 16 irradiated with the second substrate 30 side force.
- optical recording medium 10 the manufacturing method of the optical recording medium 10, and the visible information recording method will be described.
- the type of the optical recording medium 10 may be shifted, such as a read-only type, a write-once type, and a rewritable type, but is preferably a write-once type.
- the recording format is not particularly limited, such as phase change type, magneto-optical type, and dye type, but the dye type is preferred.
- Examples of the layer structure of the optical recording medium 10 include the following structures.
- the information recording layer 32, the second reflective layer 34, the adhesive layer 22, the first reflective layer 24, and the visible information recording layer 14 are formed on the second substrate 30.
- the first substrate 12 is provided.
- the information recording layer 32, the second reflective layer 34, the adhesive layer 22, the visible information recording layer 14 and the first substrate 12 are provided on the second substrate 30. It is a structure to provide.
- the information recording layer 32, the second reflective layer 34, the second protective layer 36, the adhesive layer 22, and the visible information recording layer 14 are formed on the second substrate 30.
- the first substrate 12 is provided.
- the information recording layer 32, the second reflective layer 34, the second protective layer 36, the adhesive layer 22, and the first protective layer 26 are provided on the second substrate 30.
- the visible information recording layer 14 and the first substrate 12 are provided.
- the fifth layer structure is formed on the second substrate 30 on the information recording layer 32, the second reflective layer 34, the second protective layer 36, the adhesive layer 22, The first protective layer 26, the first reflective layer 24, the visible information recording layer 14, and the first substrate 12 are provided.
- each The layer may be composed of one layer or a plurality of layers.
- the first substrate 12 of the optical recording medium 10 can be arbitrarily selected from various materials used as a substrate of a conventional optical recording medium.
- Examples of the material of the first substrate 12 include acrylic resins such as glass, polycarbonate, and polymethyl methacrylate, and salt-bulls based resins such as polychlorinated bulles and salt-bulls copolymers.
- Epoxy resin amorphous polyolefin, polyester and the like, and these may be used together if desired.
- These materials can be used as a film or as the rigid first substrate 12.
- polycarbonate is preferable in terms of moisture resistance, dimensional stability, price, and the like.
- the thickness of the first substrate 12 is preferably 0.1 to 1.2 mm, and more preferably 0.2 to 1.1 mm.
- an undercoat layer is provided for the purpose of improving the flatness, improving the adhesive force, and preventing the visible information recording layer 14 from being altered. Please be.
- Examples of the material for the undercoat layer include polymethyl methacrylate, acrylic acid 'methacrylic acid copolymer, styrene' maleic anhydride copolymer, polybulal alcohol, N-methylol acrylamide, and styrene 'bulutoluene.
- High polymers such as polymers, chlorosulfonated polyethylene, nitrocellulose, polychlorinated butyl, chlorinated polyolefin, polyester, polyimide, acetic acid bur. Chlorinated butyl copolymer, ethylene. Butyl acetate copolymer, polyethylene, polypropylene, polycarbonate, etc. Molecular substances; and surface modifiers such as silane coupling agents.
- the undercoat layer is prepared by dissolving or dispersing the above substances in an appropriate solvent to prepare a coating solution, and then applying the coating solution to the first substrate 12 by a coating method such as spin coating, dip coating, or etching coating.
- a coating method such as spin coating, dip coating, or etching coating.
- the thickness of the primer layer is generally in the range of 0.005 to 20 ⁇ m, preferably 0.01 to: LO ⁇ . m range.
- the optical recording medium 10 has the visible information recording layer 14 mainly composed of a dye compound separately from the information recording layer 32 (preferably on the opposite side).
- the dye compound is the main component means that the content of the dye compound with respect to the total solid content in the visible information recording layer 14 (the total amount when multiple kinds of dye compounds are used) is 50. It means that it is at least mass%.
- the content of the dye compound in the visible information recording layer 14 is preferably 80% by mass or more, more preferably 90 to: LOO% by mass.
- the thickness of the visible information recording layer 14 is preferably 0.01 to 200 / ⁇ ⁇ . 0.05 to: LOO ⁇ m is more preferable 0.1 to 50 ⁇ . More preferably, m.
- the ratio of the thickness of the visible information recording layer 14 to the information recording layer 32 is preferably 1Z100 to 100Z1. I prefer 10 ⁇ 1! /.
- the visible information recording layer 14 records visible information desired by the user, such as characters, figures, and patterns.
- the visible information includes, for example, the disc title, content information, content thumbnail, related design, design design, copyright information, recording date, recording method, recording format, and the like.
- the visible information recording layer 14 only needs to be able to record information such as characters, images, and patterns in a visible manner.
- the optical recording medium 10 has a maximum absorption within a light wavelength range of 400 to 850 nm, and an absorbance of 0.05 or more (preferably 0.1 or more and 1.0 or less) with respect to the laser light 16 used. It is preferred to use a dye having
- the visible information recording layer 14 of the optical recording medium 10 includes a dye compound represented by the following general formula (1), a dye compound represented by the following general formula (2), and the following general formula (3). Among the represented dye compounds, it contains at least one dye compound.
- D 1 represents a hydrogen atom or a monovalent substituent
- D 2 represents a hydrogen atom or a monovalent substituent
- D 3 represents an aromatic group
- D 4 and D 5 each independently represents a hydrogen atom or a monovalent substituent.
- the above monovalent substituent may further have a substituent.
- the D 1 of the general formula (1) represents a hydrogen atom, an alkyl group, an alkoxy group, ⁇ Li Lumpur group, alkoxycarbonyl - group, a Shiano group, or force Rubamoiru group
- D 2 is a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group
- D 3 is an aryl group or a heteroaryl group
- D 4 and D 5 are each independently a hydrogen atom or an alkyl group. May be.
- D 6 to D 12 each independently represents a hydrogen atom or a monovalent substituent.
- D 11 and D 12 may be bonded to each other to form a ring.
- D 8 and D 11 or / and D 9 and D 12 may be bonded to form a ring.
- the monovalent substituent may further have a substituent, which may form a saturated or unsaturated carbocyclic ring.
- D 6 to D 1Q in the general formula (2) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyano group, or an acylamino group.
- D 11 and D 12 is preferably independently a hydrogen atom, an alkyl group, or an aryl group.
- D 14 ⁇ ! Each independently represents a hydrogen atom or a monovalent substituent, and ⁇ "and D 23 each independently represent a hydrogen atom or a monovalent substituent.
- D 22 and D 23 are bonded to each other to form a ring.
- D 19 and D 22 or / and D 2 ° and D 23 may be bonded to form a ring.
- D 14 to D 21 in the general formula (3) are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a cyano group, an acylamino group, a sulfo group.
- -Luamino group, ureido group, alkoxycarbolumino group, alkylthio group, allylthio group, alkoxycarbole group, strong rubamoyl group, sulfamoyl group, sulfol group, acyl group or amino group are preferred.
- Each of D 22 and D 23 is preferably independently a hydrogen atom, an alkyl group, or an aryl group. [0172] Hereinafter, each of the groups will be described in more detail.
- Examples of the halogen atom of the general formulas (2) and (3) include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Of these, chlorine atoms and bromine atoms are preferred, and chlorine atoms are particularly preferred.
- the alkyl groups of the general formulas (1) to (3) include substituted or unsubstituted cycloalkyl groups and bicycloalkyl groups, and linear or branched substituted or unsubstituted alkyl groups.
- the linear or branched substituted or unsubstituted alkyl group preferably has 1 to 30 carbon atoms. Specific examples include methyl, ethyl, n-propyl, isopropyl, t-butyl, n-octyl, eicosyl, 2-chloroethyl, 2-cyanoethyl, or 2-ethyl.
- a xyl group can be mentioned.
- the substituted or unsubstituted cycloalkyl group preferably has 3 to 30 carbon atoms. Specific examples thereof include a cyclohexyl group, a cyclopentyl group, and a 4-n-dodecyl cyclohexyl group.
- the substituted or unsubstituted bicycloalkyl group is preferably a bicycloalkyl group having 5 to 30 carbon atoms, that is, a monovalent group in which one hydrogen atom having 5 to 30 carbon atoms is removed. Specific examples thereof include bicyclo [1,2,2] heptane-2-yl, bicyclo [2,2,2] octane-3-yl). Further, it includes a tricyclo structure having many ring structures.
- An alkyl group (for example, an alkyl group of an alkylthio group) in the substituents described below also represents an alkyl group having the above concept.
- the alkoxy groups of the general formulas (1) to (3) include substituted or unsubstituted alkoxy groups.
- the substituted or unsubstituted alkoxy group is preferably an alkoxy group having 1 to 30 carbon atoms.
- Examples of the alkoxy group include a methoxy group, an ethoxy group, an isopropoxy group, an n-octyloxy group, a methoxyethoxy group, a hydroxyethoxy group, and a 3-carboxypropoxy group.
- the aryl group in the general formulas (1) to (3) is, for example, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms. Specific examples thereof include a phenyl group and p-tolyl. Group, naphthyl group, m-chlorophenol group, o-hexadecanolaminophenol group.
- the alkoxycarbonyl group of the general formulas (1) to (3) may be substituted or substituted with 2 to 30 carbon atoms. Unsubstituted alkoxy carbo groups are preferred! /.
- Examples of the alkoxy carbo yl group include a methoxy carbo ol group, an ethoxy carbo ol group, a t-butoxy carbo ol group, and an n-octadecyloxy carbonyl group.
- the strong rubermoyl group of the general formulas (1) to (3) is preferably a substituted or unsubstituted strong rubermoyl group having 1 to 30 carbon atoms.
- Examples of the force rubamoyl group include force rubamoyl group, N-methylcarbamoyl group, N, N dimethylcarbamoyl group, N, N di-n-octylcarbamoyl group, N (methylsulfol) force rubamoyl group and the like. it can.
- aryloxy group of the general formulas (2) and (3) a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms is preferable.
- the aryloxy group include a phenoxy group, a 2-methylphenoxy group, a 4-t-butylphenoxy group, a 3-trophenoxy group, and a 2-tetradecanoylaminophenoxy group.
- the asilamino groups of the general formulas (2) and (3) include a formylamino group, a substituted or unsubstituted alkylcarboamino group having 1 to 30 carbon atoms, a substituted or unsubstituted group having 6 to 30 carbon atoms. Preferred is a substituted arylcarbonylamino group.
- Examples of the asilamino group include a formylamino group, an acetylamino group, a bivalloylamino group, a lauroylamino group, a benzoylamino group, a 3, 4, 5-tritri-n-octyloxyphenyl carbonate group, and the like. I can make it.
- alkoxycarboamino group of the general formulas (2) and (3) a substituted or unsubstituted alkoxycarboamino group having 2 to 30 carbon atoms is preferable.
- alkoxycarboamino group include a methoxycarboamino group, an ethoxycarboamino group, a t-butoxycarboamino group, an n-octadecyloxycarboamino group, and an N-methylmethoxycarbolumino group. Examples include groups.
- the alkylthio group of the general formulas (2) and (3) is preferably a substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms.
- Examples of the alkylthio group include a methylthio group, an ethylthio group, and an n-hexadecylthio group.
- the sulfamoyl group of the general formulas (2) and (3) is preferably a substituted or unsubstituted sulfamoyl group having 0 to 30 carbon atoms.
- the sulfamoyl group include N ethyls. Nicoamoyl group, N— (3-Dodecyloxypropyl) sulfamoyl group, N, N-dimethylsulfamoyl group, N-acetyl sulfamoyl group, N-benzoylsulfamoyl group, N— (N, -Lucarbamoyl) sulfamoyl group and the like.
- Examples of the acyl groups of the general formulas (2) and (3) include a formyl group, a substituted or unsubstituted alkylcarbonyl group having 2 to 30 carbon atoms, and a substituted or unsubstituted arylcarbonyl group having 7 to 30 carbon atoms.
- a heterocyclic carbonyl group bonded to a carbonyl group with a substituted or unsubstituted carbon atom having 4 to 30 carbon atoms is preferred.
- acyl group examples include, for example, an acetyl group, a pivaloyl group, a 2-chloroacetyl group, a stearoyl group, a benzoyl group, a p-n-octyloxyphenyl carbonate group, and a 2-pyridylcarboxyl group.
- acetyl group a pivaloyl group, a 2-chloroacetyl group, a stearoyl group, a benzoyl group, a p-n-octyloxyphenyl carbonate group, and a 2-pyridylcarboxyl group.
- 2-furylcarbol group and the like.
- the amino groups of the general formulas (2) and (3) include an arylamino group.
- the amino group is preferably a substituted or unsubstituted alkylamino group having 1 to 30 carbon atoms, or a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms.
- Examples of the amino group include an amino group, a methylamino group, a dimethylamino group, an amino group, an N-methyl mono-lino group, a diphenylamino group, a hydroxyethylamino group, and a carboxyethylamino group.
- Examples thereof include a mino group, a sulfethylamino group, and a 3,5-dicarboxy-lino group.
- each of the above-described dye compounds can be used alone, or two or more kinds of dye compounds can be used in combination.
- the dye compound represented by the general formula (1) is a yellow dye compound
- the dye compound represented by the general formula (2) is a magenta dye compound
- the dye represented by the general formula (3) Is a cyan dye compound.
- dye compounds can be used in combination as appropriate according to the desired color tone.
- Each of the above dye compounds absorbs the irradiated laser beam 16 and converts it into light-to-heat, whereby the dye is decomposed by the generated heat and the absorption of light in the visible light region can be reduced. As a result, a difference in color tone occurs between the region colored by the undecomposed dye and visible information such as an image can be formed on the visible information recording layer 14.
- Each dye compound preferably has an absorbance of 0.5 or more (preferably 0.1 to 1.0) with respect to laser light 16 in the wavelength region of 400 to 850 nm.
- Visible information recording layer 14 When the contained dye compound has the above absorption, visible information such as characters, images, and patterns having good visibility can be recorded by irradiation with the laser beam 16.
- the visible information recording layer 14 contains a dye compound represented by the general formula (1).
- the visible information recording layer 14 contains a dye compound represented by the general formula (2).
- the visible information recording layer 14 contains a dye compound represented by the general formula (3).
- the visible information recording layer 14 contains a dye compound represented by the general formula (1) and a dye compound represented by the general formula (2).
- the visible information recording layer 14 contains a dye compound represented by the general formula (1) and a dye compound represented by the general formula (3).
- the visible information recording layer 14 contains a dye compound represented by the general formula (2) and a dye compound represented by the general formula (3).
- the visible information recording layer 14 contains a dye compound represented by the general formula (1), a dye compound represented by the general formula (2), and a dye compound represented by the general formula (3).
- the first to seventh optical recording media described above may further contain a phthalocyanine dye represented by the following general formula (4).
- R ⁇ i to R a 8 and R ⁇ i to R ⁇ 8 each independently represents a hydrogen atom or a monovalent substituent, and ⁇ represents two hydrogen atoms, It represents a metal, a metal oxide, or a metal having a ligand.
- the general formula! ⁇ ⁇ ! ⁇ And! ⁇ ⁇ ! ⁇ is independently hydrogen atom, halogen atom, cyano group, nitro group, formyl group, carboxyl group, sulfo group, alkyl group having 1 to 20 carbon atoms, aryl group having 6 to 14 carbon atoms, carbon Aralkyl group having 7 to 15 atoms, Heterocyclic group having 1 to 10 carbon atoms, Alkoxy group having 1 to 20 carbon atoms, Aryloxy group having 6 to 14 carbon atoms, and 2 to 21 carbon atoms Acyl group, carbon atom number 1 to 20 alkylsulfonyl group, carbon atom number 6 to 20 arylsulfol group, carbon atom number 1 to 25 force rubermoyl group, carbon atom number 0 to 32 sulfamoyl group, carbon atom number 2 to 21 alkoxy carbonyl group, 7 to 15 carbon aryloxy group, 2 to
- R o; 1 ⁇ lay preferred that not all simultaneously hydrogen atoms R a 8, further of R alpha 1 and R a 2, whereas if the deviation, R a 3, and One of R a 4 , one of R a 5 and R a 6 !, One of R a 7 and R a 8 !, One of the two must not be hydrogen atoms at the same time R j8 i R jS 8 all water at the same time, especially at this time Preferred to be an elementary atom.
- R ai to R a 8 and R ⁇ i to R ⁇ 8 are preferred U, for example, hydrogen atom, halogen atom, carboxyl group, sulfo group, carbon An alkyl group having 1 to 16 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkoxy group having 1 to 16 carbon atoms, an aryloxy group having 6 to 10 carbon atoms, and a sulfole group having 1 to 16 carbon atoms.
- a force capable of mentioning a sulfo-lamino group having 1 to 18 carbon atoms more preferably a hydrogen atom, a halogen atom, a carboxyl group, a sulfo group, an alkoxy group having 1 to 16 carbon atoms, a carbon atom 6 to 10 aryloxy group, 1 to 14 carbon atoms Alkylsulfol group, aryl group having 6 to 14 carbon atoms, sulfamoyl group having 2 to 16 carbon atoms, alkoxycarbonyl group having 2 to 13 carbon atoms, and acylamino group having 2 to 14 carbon atoms A sulfonylamino group having 1 to 14 carbon atoms, and more preferably, R o; 1 to Ra 8 are a hydrogen atom, a halogen atom, a sulfo group, an alkoxy group having 8 to 16 carbon atoms, a carbon atom A sulfo group having 1 to 18
- R ai to R a 8 and R ⁇ i to R ⁇ 8 further have a substituent! Examples of such substituents are listed below.
- a linear or cyclic alkyl group having 1 to 20 carbon atoms for example, methyl group, ethyl group, isopropyl group, cyclohexyl group), aryl group having 6 to 18 carbon atoms (for example, a phenyl group, a chloro group) Mouth phenyl group, 2, 4 di-taylphenyl group, 1 naphthyl group), aralkyl group having 7 to 18 carbon atoms (eg, benzyl group, acyl group), alkene having 2 to 20 carbon atoms -Ru group (for example, buyl group, 2-methylvinyl group), alkynyl group having 2 to 20 carbon atoms (for example, ethul group, 2-methyl ethur group, 2-plan ture group), halogen
- R ai to R a 8 and R ⁇ i to R ⁇ 8 is a linear or cyclic alkyl group having 1 to 16 carbon atoms.
- preferred are linear or cyclic alkyl groups having 1 to 10 carbon atoms, carbon atoms.
- Particular preferred are linear branched or cyclic ⁇ 1 to 8 carbon atoms
- Excellent and preferred are alkoxy groups having 1 to 6 carbon atoms.
- M is preferably a metal, zinc, magnesium, copper, nickel or palladium is preferable, and copper or nickel is particularly preferable. preferable.
- the phthalocyanine derivatives used in the present embodiment are, for example, co-authored by Shirai Kazukobayashi, published by IPC Co., Ltd. Published by Phthalocyanines—Properties and Applicatiions' (p. 1-54), etc., can be synthesized by citation or similar methods.
- the dye compounds represented by the above general formulas (Y-1) to (Y-7), ( ⁇ -1) to ( ⁇ -7), (C1) to (C9) are commercially available. Some are available as goods. In addition, those not commercially available can be synthesized according to the methods described in the following literature: US Application License Ser. No. 07/059, 442, US Patent 3,770,370, JP 2004 51873, German Patent 2316755, JP 7-137455, JP 61-31292, Chem. Soc. Perkin transfer I, 1977, 2047, Champa ⁇ "Merocyanine “Dye—Doner Element Used in Thermal Dye Transefer”.
- the optical recording medium 10 is not particularly limited as long as it has the above-described dye compound as the visible information recording layer 14 (preferably also the information recording layer 32).
- DVD-R the following two modes are preferred.
- the dye compound is included on a second substrate 30 having a thickness of 0.6 ⁇ 0.lm m on which a pre-group 28 having a track pitch of 0.6 to 0.9 m is formed.
- the two laminated bodies provided with the information recording layer 32 and the light reflecting layer are joined so that the information recording layer 32 is inside, and the thickness is 1.2 ⁇ 0.2 mm.
- the pigment compound is contained on a second substrate 30 having a thickness of 0.6 ⁇ 0.lm m on which a pre-group 28 having a track pitch of 0.6 to 0.9 m is formed.
- a laminated body provided with the information recording layer 32 and the light reflecting layer, and a transparent disk-shaped protective substrate having the same shape as the disk-like second substrate 30 of the laminated body, so that the information recording layer 32 is on the inside.
- An optical recording medium having a thickness of 1.2 ⁇ 0.2 mm and having a visible information recording layer 14 and a first substrate 12 provided on at least one of the substrates.
- a protective layer may be further provided on the light reflecting layer.
- Visible information recorded in the visible information recording layer 14 means a visually recognizable image, and includes all visually recognizable information such as characters (columns), pictures, figures, and the like.
- character information usable user designation information, usage period designation information, usable number designation information, rental information, resolution designation information, layer designation information, user designation information, copyright holder information, copyright number information , Manufacturer information, production date information, sales date information, dealer or seller information, use set number information, region designation information, language designation information, application designation information, product user information, use number information, etc.
- the visible information recording layer 14 can be formed by preparing a coating solution by dissolving the above-described dye compound in a solvent and coating the coating solution.
- a solvent the same solvent as that used for preparing the coating solution for the information recording layer 32 described later can be used.
- Other additives, coating methods, and the like can be performed in the same manner as the information recording layer 32 described later.
- the information recording layer 32 is a layer capable of recording information by irradiating the laser beam 16.
- the information recording layer 32 is a layer in which code information (code information) such as digital information is recorded, and includes a write-once type (preferably a dye write-once type), a phase change type, a magneto-optical type, and the like. However, it is preferably a pigment type.
- Specific examples of the dye contained in the dye-type information recording layer 32 include cyanine dyes, oxonol dyes, metal complex dyes, azo dyes, phthalocyanine dyes, and the like.
- the dyes described in JP-A Nos. 2000-4 3423, 2000-108513 and 2000-158818 are preferably used.
- the information recording layer 32 is prepared by dissolving a recording substance such as a dye in a suitable solvent together with a binder or the like to prepare a coating solution, and then applying the coating solution on the second substrate 30 by coating. After forming the film, it can be formed by drying.
- concentration of the recording substance in the coating solution is generally in the range of 0.01 to 15% by mass, preferably in the range of 0.1 to 10% by mass, more preferably in the range of 0.5 to 5% by mass, most preferably. Is in the range of 0.5-3 mass%.
- the information recording layer 32 is formed by a method such as vapor deposition, sputtering, CVD, or solvent coating. Can be formed. Among these, it is preferable to use a solvent coating method. In this case, after preparing a coating solution by dissolving a quencher, a binder and the like in a solvent in addition to the above-described pigments, if desired, and then coating the surface of the second substrate 30 to form a coating film.
- the information recording layer 32 can be formed by drying.
- Solvents for the coating solution include esters such as butyl acetate, lactic acid ethyl, and cellosolve acetate; ketones such as methyl ethyl ketone, cyclohexanone, and methyl isobutyl ketone; dichloromethane, 1,2-dichloroethane, and black mouth.
- Chlorinated hydrocarbons such as form; Amides such as dimethylformamide; Hydrocarbons such as methylcyclohexane; Ethers such as dibutyl ether, diethyl ether, tetrahydrofuran, and dioxane; Ethanol, n -propanol, isopropanol, n-butanol, di Alcohols such as acetone alcohol; Fluorinated solvents such as 2, 2, 3, 3-tetrafluoropropanol; Daricols such as ethylene glycol monomethyl etherenole, ethylene glycol monoethanolino ethere, propylene glycol monomethenole ether Examples include ethers.
- the above solvents may be used alone or in combination of two or more in consideration of the solubility of the dye used.
- various additives such as anti-oxidation agents, UV absorbers, plasticizers and lubricants may be added according to the purpose.
- binder examples include natural organic polymer substances such as gelatin, cellulose derivatives, dextran, rosin and rubber; and carbonized substances such as polyethylene, polypropylene, polystyrene and polyisobutylene.
- Hydrogen-based resin Bull-based resin such as polyvinyl chloride, polyvinylidene chloride, polyvinyl chloride-polyvinyl acetate copolymer; Acrylic resin such as polymethyl acrylate and polymethyl methacrylate
- Examples include synthetic organic polymers such as polybulol alcohol, chlorinated polyethylene, epoxy resin, bunalal resin, rubber derivatives, and initial condensates of thermosetting resins such as phenol formaldehyde resin.
- the amount of the binder used is generally in the range of 0.01 to 50 times the mass of the dye, preferably 0.1 times the amount. It is in the range of up to 5 times.
- the information recording layer 32 may be a single layer or a multilayer.
- the thickness of the information recording layer 32 is generally in the range of 10 to 500 nm, preferably in the range of 15 to 300 nm, more preferably in the range of 20 to 150 nm.
- the information recording layer 32 may contain various antichromic agents.
- a singlet oxygen quencher is generally used.
- the singlet oxygen quencher those already described in publications such as known patent specifications can be used.
- the amount of color fading prevention agents such as singlet oxygen Kuenchiya is usually from 0.1 to 50% by weight of the dye, preferably, 0.5 to 45 weight 0/0 range, further preferably in the range of 3 to 40 weight 0/0, and particularly preferably from 5 to 25 wt%.
- phase change type information recording layer 32 Specific examples of the material constituting the phase change type information recording layer 32 include Sb—Te alloy, Ge — Sb—Te alloy, Pd—Ge Sb—Te alloy, Nb Ge Sb—Te alloy, Pd— Nb Ge Sb Te alloy, Pt—Ge Sb Te alloy, Co—Ge Sb Te alloy, In—Sb—Te alloy, Ag—In—Sb—Te alloy, Ag—V—In—Sb—Te alloy, Ag Ge— Examples include In—Sb—Te alloys.
- the thickness of the phase change type information recording layer 32 is preferably 10 to 50 nm, and more preferably 15 to 30 nm.
- the phase change type information recording layer 32 can be formed by a vapor phase thin film deposition method such as a sputtering method or a vacuum deposition method.
- the second substrate 30 is used as a substrate of a conventional optical recording medium, and can be formed using a material arbitrarily selected from various materials.
- the material of the second substrate 30 is, for example, an acrylic resin such as glass, polycarbonate, or polymethyl methacrylate, or a salt or resin resin such as a polychlorinated bull or a salt or bull copolymer. , Epoxy resin, amorphous polyolefin, polyester and the like, and these may be used in combination as desired. Note that these materials can be used as a film or as the rigid second substrate 30. Among the above materials, polycarbonate is preferable also in terms of points such as moisture resistance, dimensional stability and price.
- the thickness of the first substrate 30 is preferably 0.1 to 1.2 mm. 0.2 to 1.1 mm. It is more preferable.
- an undercoat layer may be provided.
- Examples of the material for the undercoat layer include polymethyl methacrylate, acrylic acid 'methacrylic acid copolymer, styrene' maleic anhydride copolymer, polybulal alcohol, N-methylol acrylamide, and styrene High polymers such as polymers, chlorosulfonated polyethylene, nitrocellulose, polychlorinated butyl, chlorinated polyolefin, polyester, polyimide, acetic acid bur. Chlorinated butyl copolymer, ethylene. Butyl acetate copolymer, polyethylene, polypropylene, polycarbonate, etc. Molecular substances; and surface modifiers such as silane coupling agents.
- the undercoat layer is prepared by dissolving or dispersing the above substances in an appropriate solvent to prepare a coating solution, and then coating the coating solution on the surface of the second substrate 30 by a coating method such as spin coating, dip coating, or etching coating. By doing so, it can be formed.
- the thickness of the undercoat layer is generally in the range of 0.005 to 20 ⁇ m, and preferably in the range of 0.001 to: LO ⁇ m.
- a second layer adjacent to the visible information recording layer 14 is used.
- One reflective layer 24 may be provided, and a second reflective layer 34 may be provided adjacent to the information recording layer 32.
- the light-reflective substance which is the material of the first reflective layer 24 and the second reflective layer 34, is a substance having a high reflectivity with respect to the laser light 16, and examples thereof include Mg, Se, Y, and Ti. , Zr, Hf, V, Nb, T a ⁇ Cr ⁇ Mo, W ⁇ Mn, Re ⁇ Fe ⁇ Co, Ni ⁇ Ru ⁇ Rh, Pd ⁇ Ir, Pt ⁇ Cu ⁇ Ag ⁇ Au ⁇ Zn, C d, Al , Ga, In, Si, Ge, Te, Pb, Po, Sn, Bi, and other metals and semi-metals or stainless steel. These substances may be used alone or in combination of two or more or as an alloy.
- the first reflective layer 24 can be formed on the visible information recording layer 14, for example, by vapor deposition, sputtering, or ion plating of the light reflective material.
- the layer 34 can be formed on the information recording layer 32 by, for example, vapor deposition, sputtering or ion plating of the light reflecting material.
- the thicknesses of the first reflective layer 24 and the second reflective layer 34 are in the range of 10 to 300 nm, and preferably in the range of 50 to 200 nm.
- the adhesive layer 22 is a layer formed in order to improve the adhesion between the information recording medium part 18 and the visible information recording medium part 20.
- the material constituting the adhesive layer 22 is preferably a material having a small curing shrinkage rate in order to prevent warping of the optical recording medium 10 even when a photocurable resin is preferred.
- photocurable resin examples include UV curable resins (UV curable adhesive) such as “SD-640” and “SD-347” manufactured by Dainippon Ink and Chemicals, Inc. Can do.
- the thickness of the adhesive layer 22 is preferably in the range of 1 to 1000 / ⁇ ⁇ , more preferably in the range of 5 to 500 m, and more preferably in the range of 10 to 100 ⁇ m in order to provide elasticity. .
- the first protective layer 26 is provided for the purpose of physically and chemically protecting the first reflective layer 24 and the visible information recording layer 14, and the second reflective layer 34 and the information recording layer 32 are physically and chemically protected.
- a second protective layer 36 may be provided for the purpose of protection.
- the first protective layer 26 and the second protective layer 36 are not necessarily formed. .
- Examples of materials used for the first protective layer 26 and the second protective layer 36 include inorganic substances such as ZnS, ZnS-SiO, SiO, SiO, MgF, SnO, and SiN, thermoplastic resin, Thermosetting mold
- Examples thereof include organic substances such as fat and uv curable rosin.
- thermoplastic resins and thermosetting resins it is possible to prepare a coating solution by dissolving these in a suitable solvent, and then apply this coating solution and dry it. Can be formed.
- a UV curable resin it is also formed by preparing a coating solution as it is or by dissolving it in a suitable solvent, and then applying this coating solution and curing it by irradiating with UV light. Can.
- various additives such as antistatic agents, antioxidants, UV absorbers and the like may be added according to the purpose.
- the thickness of the protective layer is generally 0.1 ⁇ m to ⁇ mm 3 ⁇ 43 ⁇ > o.
- optical recording medium 10 can be applied to a so-called read-only optical recording medium having a recording part (pit) in which information reproducible by the laser beam 16 is recorded. Street.
- the visible information recording layer 14 is a dye compound represented by the following general formula (1), a dye represented by the following general formula (2) Since the compound contains at least one dye compound among the dye compounds represented by the following general formula (3), a system capable of recording visible information in the visible information recording layer 14 (for example, Even when applied to the system shown in Japanese Unexamined Patent Publication No. 2002-203321, visible information with high contrast can be recorded clearly, and the recorded visual information is more robust.
- a first stamper for manufacturing the first substrate 12 is manufactured.
- the first stamper is manufactured so that the surface of the first substrate 12 becomes a flat surface when the first substrate 12 is formed by, for example, injection molding a resin material with the completed first stamper. To do.
- the first substrate 12 is manufactured by injection molding a resin material such as polycarbonate to the first stamper. At this time, the first substrate 12 (see FIG. 2) having a flat surface is produced.
- a dye that will later become the visible information recording layer 14 is applied to the surface of the first substrate 12.
- a coating solution containing a pigment (a pigment coating solution) is prepared, and this pigment coating solution is applied to the flat processed surface of the first substrate 12 by spin coating.
- step S4 of Fig. 4 annealing treatment for drying the dye coating solution is performed. I do. For example, annealing is performed for 3 hours at a temperature of 80 ° C. By this annealing treatment, the dye coating solution becomes the visible information recording layer 14.
- the first reflective layer 24 is formed on the surface of the visible information recording layer 14 by, for example, sputtering.
- the first protective layer 26 is formed on the surface of the first reflective layer 24.
- the coating solution is applied and cured by irradiating with UV light to form the first protective layer 26.
- the visible information recording medium unit 18 is completed.
- a second stamper for manufacturing the second substrate 30 is manufactured.
- etching is selectively performed on the original plate to be the second stamper to produce a second stamper having irregularities on the surface.
- the second stano is manufactured by performing high-precision mastering on the original plate by cutting with a DUV (wavelength 330 ⁇ m or less, deep ultraviolet) laser or EB (electron beam).
- the pregroove 28 is formed on the surface of the second substrate 30.
- the second stamper is manufactured by mastering the original plate.
- step S102 of Fig. 4 the second substrate 30 is manufactured by injection molding a resin material such as polycarbonate onto the second stamper. At this time, the unevenness of the second stamper is transferred to the surface of the second substrate 30, and the pregroup 28 is formed.
- a resin material such as polycarbonate
- the second substrate 30 is manufactured by injection molding or extrusion molding of a resin material such as polycarbonate.
- a resin material such as polycarbonate.
- the second substrate 30 having a flat surface as described below is used.
- Pre-groove layers are formed on the surface of each to form pre-group 28.
- a material for the pregroup layer a mixture of at least one monomer (or oligomer) of acrylic acid monoester, diester, triester and tetraester and a photopolymerization initiator can be used.
- the pre-group layer is formed on the second substrate 30
- the above-mentioned acrylic ester and a mixture of polymerization initiators are applied onto the second stamper, and the second substrate 30 is further formed on this coating solution layer.
- the second board 30 or Irradiates ultraviolet rays through the second stamper to cure the coating layer and fix the second substrate 30 and the coating layer.
- peeling the second substrate 30 from the second stamper it is possible to obtain the second substrate 30 to which the pregroup layer having the pregroup 28 formed on the surface is fixed.
- a dye that will later become the information recording layer 32 is applied to the surface of the second substrate 30.
- a coating solution containing a pigment (a pigment coating solution) is prepared, and this pigment coating solution is applied to the surface of the second substrate 30 on which the pre-group 28 is formed by spin coating.
- step S104 of Fig. 4 an annealing process for drying the dye coating solution is performed. For example, annealing is performed for 3 hours at a temperature of 80 ° C. By this annealing process, the dye coating solution becomes the information recording layer 32.
- the second reflective layer 34 is formed on the surface of the information recording layer 32 by, for example, sputtering.
- step S106 of Fig. 4 the second protective layer 36 is formed on the surface of the second reflective layer 34.
- this coating solution is applied and cured by irradiating with UV light to form the second protective layer 36. Oh ,.
- the information recording medium section 20 is completed.
- step S201 of FIG. 4 the visible information recording medium part 18 and the information recording medium part 20 are bonded together.
- the first protective layer 26 formed on the visible information recording medium unit 18 and the second protective layer 36 formed on the information recording medium unit 20 are opposed to each other, and the visible information recording medium unit 18 and the information are recorded.
- Adhesive layer 22 is interposed between the recording medium portion 20 and bonded. By this bonding, the optical recording medium 10 is completed.
- the visible information recording method on the optical recording medium 10 is a visible information recording method on the visible information recording layer 14 of the optical recording medium 10, and the recording of the information recording layer 32 is performed on the visible information recording layer 14. It is preferable to use the same laser beam 16 (see FIG. 1) as the laser beam 16 used for the above.
- This visible information recording method includes the optical recording medium 10 and at least the visible information of the optical recording medium 10.
- the recording is performed by using a recording apparatus described later capable of recording visible information on the information recording layer 14.
- This visible information recording method records visible information on the visible information recording layer 14 by using the same laser beam 16 as the laser beam 16 used for recording on the information recording layer 32.
- Laser light sources can be shared in the apparatus, hardware resources of the recording apparatus can be minimized, and general users can easily record visible information using these apparatuses.
- the visible information recording on the visible information recording layer 14 of the optical recording medium 10 is most preferably performed by this visible information recording method.
- the visible information recording layer 14 of the optical recording medium 10 is not limited. This is not the only way to record visible information.
- optical recording medium 10 recording of visible information on the visible information recording layer 14 and recording of data (pit information) on the information recording layer 32 are performed by one optical disk drive (recording device). It can be carried out.
- one optical disk drive when one optical disk drive is used, after recording on one of the visible information recording layer 14 and the information recording layer 32, the recording can be reversed and recording can be performed on the other layer.
- Optical disk drives having a function of recording visible information on the visible information recording layer 14 are described in, for example, JP 2003-203348 A, JP 2003-242750 A, etc. Detailed description is omitted.
- the recording apparatus when recording visible information on the visible information recording layer 14, the recording apparatus relatively moves the optical recording medium 10 and the laser pickup along the surface of the optical recording medium 10 to perform the relative movement.
- the laser beam 16 is modulated according to image data such as characters and pictures to be imaged and irradiated to the visible information recording layer 14 to record the visible information. That is, the visible information is recorded by irradiating the laser beam 16 on the visible information recording layer 14 in the radial direction of the optical recording medium 10 and irradiating the same information locus a plurality of times.
- image data such as characters and pictures to be imaged
- the visible information recording layer 14 to record the visible information. That is, the visible information is recorded by irradiating the laser beam 16 on the visible information recording layer 14 in the radial direction of the optical recording medium 10 and irradiating the same information locus a plurality of times.
- the optical recording medium according to Example 1 is, for example, a DVD-R type optical recording medium having the same layer configuration as that of the optical recording medium 10 according to the present embodiment.
- a method for manufacturing the optical recording medium according to Example 1 will be described below.
- a mixture of the above-mentioned dye compound (Y-1) and the above-mentioned phthalocyanine dye represented by (I 1) 1. 100 ml of OgZ solvent was added to 2, 2, 3 , 3-tetrafluoro mouth 1 A coating solution for a visible information recording layer dissolved in 100 ml of propanol was prepared. The visible information recording layer coating solution was formed on a first substrate 26 having a thickness of 0.6 mm and a diameter of 120 mm by spin coating. The mixing ratio of the dye compound (Y-1) and the phthalocyanine dye (1-1) is 7: 3.
- silver was sputtered onto the visible information recording layer 14 to form a first reflective layer 24 having a thickness of 120 nm, and then an ultraviolet curing resin (SD318 (Dainippon Ink & Chemicals, Inc.) After coating by spin coating, the film was cured by irradiation with ultraviolet rays to form a first protective layer having a layer thickness of 10 m.
- SD318 Dainippon Ink & Chemicals, Inc.
- silver was sputtered onto the information recording layer 18 to form a second reflective layer 20 having a thickness of 120 nm, and then an ultraviolet curable resin (SD318 (Dainippon Ink & Chemicals, Inc.) was spun. After coating by the coating method, the film was cured by irradiating with ultraviolet rays to form a second protective layer having a thickness of 10 m.
- SD318 Dainippon Ink & Chemicals, Inc.
- a slow-acting cationic polymerization type adhesive (SDK, SDK7000) was printed on the first protective layer of the visible information recording medium part and the second protective layer of the information recording medium part by screen printing. .
- the mesh size of the screen printing plate was 300 mesh.
- a visible information recording medium is used.
- the optical recording medium according to Example 1 was manufactured by laminating the part of the recording medium and the information recording medium part on each side of the protective layer, pressing the double-sided force, and leaving it for 5 minutes.
- Dye compound (C-1) described above A coating solution for visible information recording layer was prepared by dissolving 100 ml of OgZ solvent in 100 ml of 2, 2, 3, 3-tetrafluoro-1 propanol, and coating the visible information recording layer This example is the same as Example 1 except that the visible information recording layer was formed by applying the solution onto the first substrate 26 having a thickness of 0.6 mm and a diameter of 120 mm by spin coating.
- Example 1 is the same as Example 1 except that a visible information recording layer was formed.
- the mixing ratio of the dye compound (Y-1), the dye compound (M-1), and the dye compound (C1) is 4: 4: 2.
- a coating solution for a visible information recording layer was prepared by dissolving 100 ml of OgZ solvent in 100 ml of 2,2,3,3-tetrafluorine 1-propanol.
- a visible information recording layer was formed by applying a visible information recording layer coating solution onto a first substrate 26 having a thickness of 0.6 mm and a diameter of 120 mm by spin coating.
- the mixing ratio of dye compound (Y-2) and phthalocyanine dye (1-1) is 7: 3.
- Visible information was recorded at a DVD-R recording / reproducing wavelength (660 nm) on each of the visible information recording layers 14 of the optical recording media according to Examples 1 to 10, and the contrast was evaluated.
- optical recording medium the method of using a dye compound, and the visible information recording method according to the present invention are not limited to the above-described embodiments, and can adopt various configurations without departing from the gist of the present invention. Of course.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
Claims
Priority Applications (2)
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JP2008517958A JPWO2007139139A1 (ja) | 2006-05-31 | 2007-05-30 | 光記録媒体、色素化合物の利用方法及び可視情報記録方法 |
US12/302,864 US20090196141A1 (en) | 2006-05-31 | 2007-05-30 | Optical recording medium, method for utilizing dye compound and visible information recording method |
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JP2006151526 | 2006-05-31 | ||
JP2006-151526 | 2006-05-31 |
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PCT/JP2007/060970 WO2007139139A1 (ja) | 2006-05-31 | 2007-05-30 | 光記録媒体、色素化合物の利用方法及び可視情報記録方法 |
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US (1) | US20090196141A1 (ja) |
JP (1) | JPWO2007139139A1 (ja) |
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WO (1) | WO2007139139A1 (ja) |
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JP5094698B2 (ja) * | 2008-12-22 | 2012-12-12 | 太陽誘電株式会社 | 光情報記録媒体用色素及び光情報記録媒体 |
JP2015197936A (ja) * | 2014-03-31 | 2015-11-09 | ソニー株式会社 | 光記録媒体およびその製造方法 |
JP7183171B2 (ja) * | 2017-10-06 | 2022-12-05 | シーエムシー マグネティクス コーポレーション | 光ディスク及び光ディスクの製造方法 |
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JPS633062A (ja) * | 1986-06-23 | 1988-01-08 | Mitsubishi Chem Ind Ltd | インドフエノ−ル系化合物及び該化合物を含む光学的記録媒体 |
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GB8408259D0 (en) * | 1984-03-30 | 1984-05-10 | Ici Plc | Printing apparatus |
JPS6161893A (ja) * | 1984-09-03 | 1986-03-29 | Mitsubishi Chem Ind Ltd | 光学的記録媒体 |
JPH0764993B2 (ja) * | 1986-12-09 | 1995-07-12 | 富士写真フイルム株式会社 | ピラゾロアゾールアゾメチンシアン染料 |
US4973572A (en) * | 1987-12-21 | 1990-11-27 | Eastman Kodak Company | Infrared absorbing cyanine dyes for dye-donor element used in laser-induced thermal dye transfer |
US5196393A (en) * | 1990-10-26 | 1993-03-23 | Fuji Photo Film Co., Ltd. | Heat transfer dye-providing material |
US5894069A (en) * | 1997-02-12 | 1999-04-13 | Eastman Kodak Company | Transferring colorant from a donor element to a compact disc |
US7268794B2 (en) * | 2000-10-30 | 2007-09-11 | Yamaha Corporation | Method of printing label on optical disk, optical disk unit, and optical disk |
JP4417012B2 (ja) * | 2003-01-08 | 2010-02-17 | 三菱化学メディア株式会社 | 光情報記録媒体 |
TW200639851A (en) * | 2005-02-18 | 2006-11-16 | Fuji Photo Film Co Ltd | Optical recording medium and method of manufacturing the same, substrate and method of using the same, and stamper and method of manufacturing the same |
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- 2007-05-29 TW TW096119065A patent/TW200809850A/zh unknown
- 2007-05-30 WO PCT/JP2007/060970 patent/WO2007139139A1/ja active Application Filing
- 2007-05-30 JP JP2008517958A patent/JPWO2007139139A1/ja not_active Withdrawn
- 2007-05-30 US US12/302,864 patent/US20090196141A1/en not_active Abandoned
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TW200809850A (en) | 2008-02-16 |
JPWO2007139139A1 (ja) | 2009-10-08 |
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