WO1996013834A1 - Support d'enregistrement d'informations optiques et son procede de fabrication - Google Patents
Support d'enregistrement d'informations optiques et son procede de fabrication Download PDFInfo
- Publication number
- WO1996013834A1 WO1996013834A1 PCT/JP1995/002190 JP9502190W WO9613834A1 WO 1996013834 A1 WO1996013834 A1 WO 1996013834A1 JP 9502190 W JP9502190 W JP 9502190W WO 9613834 A1 WO9613834 A1 WO 9613834A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dye
- recording medium
- information recording
- optical information
- plastic substrate
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 27
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 33
- 239000003086 colorant Substances 0.000 claims description 24
- 229920000515 polycarbonate Polymers 0.000 claims description 19
- 239000004417 polycarbonate Substances 0.000 claims description 19
- 239000002609 medium Substances 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- 239000011362 coarse particle Substances 0.000 claims description 3
- 239000002612 dispersion medium Substances 0.000 claims description 2
- 238000010348 incorporation Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 58
- 238000004040 coloring Methods 0.000 description 12
- 238000000465 moulding Methods 0.000 description 10
- 239000004014 plasticizer Substances 0.000 description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 150000002148 esters Chemical class 0.000 description 8
- -1 perinones Chemical class 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- 239000003981 vehicle Substances 0.000 description 7
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- QPQKUYVSJWQSDY-UHFFFAOYSA-N 4-phenyldiazenylaniline Chemical compound C1=CC(N)=CC=C1N=NC1=CC=CC=C1 QPQKUYVSJWQSDY-UHFFFAOYSA-N 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 2
- ZPSZXWVBMOMXED-UHFFFAOYSA-N 2-(2-bromo-5-chlorophenyl)acetic acid Chemical compound OC(=O)CC1=CC(Cl)=CC=C1Br ZPSZXWVBMOMXED-UHFFFAOYSA-N 0.000 description 2
- VJUKWPOWHJITTP-UHFFFAOYSA-N 81-39-0 Chemical compound C1=CC(C)=CC=C1NC1=CC=C2C3=C1C(=O)C1=CC=CC=C1C3=CC(=O)N2C VJUKWPOWHJITTP-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000004056 anthraquinones Chemical class 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 2
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 2
- BKMAEERFCKIKJR-UHFFFAOYSA-N 2-tridecoxycarbonylbenzoic acid Chemical compound CCCCCCCCCCCCCOC(=O)C1=CC=CC=C1C(O)=O BKMAEERFCKIKJR-UHFFFAOYSA-N 0.000 description 1
- UBZVRROHBDDCQY-UHFFFAOYSA-N 20749-68-2 Chemical compound C1=CC(N2C(=O)C3=C(C(=C(Cl)C(Cl)=C3C2=N2)Cl)Cl)=C3C2=CC=CC3=C1 UBZVRROHBDDCQY-UHFFFAOYSA-N 0.000 description 1
- JZGUXCXDBKBCDN-UHFFFAOYSA-N 21295-57-8 Chemical compound C12=C3C(=O)C4=CC=CC=C4C1=CC(=O)N(C)C2=CC=C3NC1CCCCC1 JZGUXCXDBKBCDN-UHFFFAOYSA-N 0.000 description 1
- GZRAJVGXEWAETO-UHFFFAOYSA-N C(CO)(=O)O.C(C(C)O)O Chemical compound C(CO)(=O)O.C(C(C)O)O GZRAJVGXEWAETO-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004386 Erythritol Substances 0.000 description 1
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 1
- VWYIWOYBERNXLX-KTKRTIGZSA-N Glycidyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC1CO1 VWYIWOYBERNXLX-KTKRTIGZSA-N 0.000 description 1
- XEOSKTHOPLADLN-QTJNJRLBSA-N acetyl (z,12r)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(=O)OC(C)=O XEOSKTHOPLADLN-QTJNJRLBSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- RRDGKBOYQLLJSW-UHFFFAOYSA-N bis(2-ethylhexyl) 7-oxabicyclo[4.1.0]heptane-3,4-dicarboxylate Chemical compound C1C(C(=O)OCC(CC)CCCC)C(C(=O)OCC(CC)CCCC)CC2OC21 RRDGKBOYQLLJSW-UHFFFAOYSA-N 0.000 description 1
- YLNJGHNUXCVDIX-UHFFFAOYSA-N bis(2-methylpropyl) perylene-3,9-dicarboxylate Chemical compound C=12C3=CC=CC2=C(C(=O)OCC(C)C)C=CC=1C1=CC=CC2=C1C3=CC=C2C(=O)OCC(C)C YLNJGHNUXCVDIX-UHFFFAOYSA-N 0.000 description 1
- 239000001582 butter acid Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002979 perylenes Chemical class 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- TVRGPOFMYCMNRB-UHFFFAOYSA-N quinizarine green ss Chemical compound C1=CC(C)=CC=C1NC(C=1C(=O)C2=CC=CC=C2C(=O)C=11)=CC=C1NC1=CC=C(C)C=C1 TVRGPOFMYCMNRB-UHFFFAOYSA-N 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
- G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
- B29D17/005—Producing optically read record carriers, e.g. optical discs
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
-
- 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
-
- 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
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
- G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
- G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
Definitions
- the present invention relates to an optical information recording medium for optically reading an information signal by a laser beam, and particularly to the type and use of the medium visually.
- the present invention relates to an optical information recording medium which is colored so as to be able to judge instantly.
- a color ring there is a method of obtaining a colored molded product with a molding machine after obtaining the compound.
- Other methods include mixing a powdery coloring agent called dry color and an uncolored resin (dry blending method) and dispersing them with a molding machine to obtain a colored molded product.
- a so-called liquid color ring method in which coloring is performed while supplying a fixed amount by using a so-called liquid color ring method.
- dyes dissolve in plastics and thus are well dispersed, so that a colored molded product can be obtained by the dry blending method, and even with commercially available dyes.
- the present invention is to provide an optical information recording medium which is colored so that the type, the use, and the like can be instantaneously discriminated, and has good characteristics in terms of optical characteristics. Its purpose is to further provide a method for its production.
- DISCLOSURE OF THE INVENTION The present inventors have conducted various studies over a long period of time in order to achieve the above-mentioned object. As a result, they came to the conclusion that the size of the pigment particles mixed in the plastic substrate greatly affects the error rate when reproducing data from an optical information recording medium. The present invention has been completed based on such findings.
- the optical information recording medium of the present invention comprises a plastic substrate colored by the incorporation of a dye, a signal recording section for optically reading information signals, and a plastic substrate. It is characterized in that the particle size of the dye to be mixed is set to 50 tm or less.
- a liquid colorant having a maximum particle diameter of 50> t / m or less is obtained. It is characterized in that a plastic substrate is injection-molded while being supplied to a resin input hopper of an injection molding machine.
- a basic property desirable as a dye used for coloring a plastic substrate is that it can withstand the molding processing temperature of, for example, polycarbonate, which is a material of a plastic substrate, and the desired coloring can be easily performed.
- the most important point is that the dye is completely dissolved and dispersed in the polycarbonate. However, some dyes may remain in solid particles. The presence of these solid particles is inconvenient in terms of CD performance, such as the block error rate.
- the performance of the CDs obtained by the above-mentioned method can be improved, but not fully satisfactory, from those obtained by simply blending dry colors. This is because, for example, in the above method (1), contamination due to scattering of dry color occurs, and the biggest problem is that productivity is significantly reduced due to enhanced kneading. And it is not economical.
- the method (2) mentioned above includes problems of characteristics due to a decrease in the molecular weight of the polycarbonate and an increase in the defective rate due to contamination.
- the method (3) described above results in uneven dilution of the master batch and contamination. And the problem of mi.
- the present inventors have studied a method in which a paste-like colorant in which a dye is dispersed in a liquid vehicle is produced, and the paste-type colorant is placed below a hopper of a molding machine.
- the coloring agent was dispersed in a vehicle with three rolls of a coloring agent and used as a paste.
- the defect rate of CD obtained by molding using this was about 90%, which was not a satisfactory result.
- the cause is that some of the dye particles in the colorant are not completely dissolved and remain in the polycarbonate as 100 or more defects that do not include the surrounding semi-dissolved part with coarse particles as nuclei. It is because.
- the dispersed particles of the dye must be 40 cz m
- a smaller colorant was made, CDs were molded in the same manner, and the defect rate was examined.
- the defective rate was 5% or less, and the present invention was achieved based on this result.
- the particle size of the dye in the colorant required in the present invention varies depending on the type of the dye.
- the main reason for this is thought to be the solubility of the dye in polycarbonate (compatibility) and the melting point of the dye.
- the melting point of the dye is as high as 3 0 7 e C, is believed to be due to not reach good dispersion to be substantially close to or molding temperature of Polycarbonate more.
- any dyes, pigments and the like can be used, but dyes are practically preferable.
- Usable dyes include anthraquinones, heterocycles, methines, perinones, perylenes, and thioindigos.
- typical dyes include: Solvent Red 52 and Solvent Red 52 for anthraquinones. These are Solved Green 149, Solvent Red 149, Solvent Blue 94, and Solvent Green 3.
- Solvent Yellow 33 Solvent Yellow 33
- Solvent Yellow 54 Solvent Yellow 54
- Solvent Yellow 105 Solvent Yellow 105) and the like.
- Solvent Y 93 Solvent Y 93
- Solvent Y 93 Orange 80 Solvent Orange 80
- Solvent Orange 60 Solvent Orange 60
- Solvent Blade 135 Solvent Red 135)
- Solvent Green 5 etc. are mentioned in the perylene system.
- Knot Red 1 etc. are desirable. These may be used alone or as a mixture of two or more.
- the present invention it is preferable to disperse the above-mentioned dye or the like in a vehicle and use it in the form of a liquid colorant.
- a high boiling organic solvent or a plasticizer is used as a vehicle.
- the basic properties desirable as a vehicle include its suitability as a colorant, i.e., safety, dispersion stability of dyes, and meterability with a pump, as well as the molding temperature. (Approximately 300 ° C to 350 ° C), and not only does it not decrease the molecular weight of polycarbonate, but also the mechanical properties of the molded CD (impact strength, heat Deformation temperature, crack, bleed, etc.).
- plasticizers can be recommended, especially in terms of their availability and price and physical properties.
- high boiling oils and surfactants can be used.
- the vehicle may be one type or a mixture of two or more types, and is not limited.
- Plasticizers include, for example, diisodesyl phthalate (DIDP), tridecyl phthalate (DTDP) and other phthalate plasticizers, epoxidized soybean oil (ESO), 4, 5 —Epoxycyclohexane 1,2 —Dicarboxylate 2 —Ethylhexyl (E—PS), 4,5—Epoxycyclohexane1-1,2—diisodecyl (E—P E), glycidyl oleate, 9,10-aryl epoxystearate, 9,10-ethyl-2-ethylhexyl stearate, epoxidized tall oil fatty acid-12-ethylhexyl, bisphenol A Epoxy plasticizer such as glycidyl ether, tributyl phosphate
- TBP triphenyl ethyl phosphate
- TPP triphenyl ethyl phosphate
- toxic ester plasticizers such as propyl diglycol phosphate, propylene glycol glycolate, etc., butyl stearate (BS), acetyl phenyl Methyl sinolate
- MAR fatty acid ester plasticizers such as acetyl ricinoleate (EAR), trioctyl trimellitate, trimellitate ester, dipentyl erythritol ester, pyromery Plasticizers such as butter acid ester, poly (propylene glycol, adipic acid) ester, poly (1,3-butanediol, adivic acid) ester, poly
- the present invention can be applied to any optical information recording medium that optically reads an information signal.
- the present invention can be applied to a plastic substrate such as a CD or a CD-ROM. It is suitable for application to an optical disc in which a signal recording portion is formed by forming a concave / convex bit and a reflective layer formed thereon.
- a plastic substrate such as a CD or a CD-ROM.
- a signal recording portion is formed by forming a concave / convex bit and a reflective layer formed thereon.
- polycarbonate used as the plastic substrate material
- the present invention can be similarly applied to the case where another plastic material is used.
- the particle diameter of the dye mixed into the plastic substrate is set to be appropriate, coloring that allows instantaneous determination of the type, use, and the like is performed. It is possible to provide an optical information recording medium having good characteristics in terms of optical characteristics.
- FIG. 1 is a cross-sectional view of a principal part showing a schematic configuration of an optical disc prepared in an example. BEST MODE FOR CARRYING OUT THE INVENTION
- examples to which the present invention is applied will be described in detail based on specific experimental results.
- the dye was purified by a purification method using a Soxhlet extractor.
- the filter used was cylindrical filter paper (manufactured by Toyo Roshi Kabushiki Kaisha), and a 325 mesh stainless steel screen was further set. Using methylene chloride as the extract, 55.
- the dye was purified by repeating the reflux with a mantle heater adjusted to C to remove foreign substances and impurities. Crystal particles of the purified dye were taken out of the round bottom flask and dried at 50 ° C. for 8 hours to remove methylene chloride to obtain a purified dye.
- the fine particles of the dye are refined with a three-roll mill.
- the fidelity of the dispersed hinoki was determined by adjusting the number of passes through three rolls and adjusting the clarity.
- the particle size of the dispersed particles was measured according to the JIS standard (K540, 4-4 method).
- Raw material resin from a hopper attached to the top of the extruder of the molding machine A coloring machine was installed at the location where (polycarbonate) was dropped and supplied, and the paste colorant obtained by the above (3) Paste colorant filtration was mixed into the raw resin.
- the colorant is measured by a metering device at a preset specified value, and is injected from a nozzle attached to the lower part of the hopper. ⁇ The injected colorant is applied to the polycarbonate raw material resin that has passed through the hopper. It adheres and is introduced into the extruder.
- the polycarbonate raw material resin to which the colorant has adhered passes through a field zone, a compensation zone, and a metering zone inside the extruder, is kneaded, and becomes a uniformly colored raw material for injection molding. It is injected inside.
- This optical disc 1 has a reflective layer 3 formed on a polycarbonate substrate 2 on which concave and convex bits 2a are formed, and the surface thereof is covered with a protective layer 4 made of an ultraviolet curable resin.
- the surface 4a of the protective layer 4 is a printing surface.
- the error correction circuit When reading a signal recorded on the CD, if the reading of the signal is obstructed by a foreign object, a scratch, or the like, error correction is performed by an error correction circuit in the player.
- the error correction circuit mainly corrects random errors using CIRC (Cross' Interleave 'Lead Solomon' code) C1 code, and uses C2 code to correct burst errors caused by relatively large defects. correct.
- CIRC Cross Interleave 'Lead Solomon' code
- the number of error corrections that occurred during this decoding is represented by the C1 and C2 errors shown in Table 1 above, where the C1 error is represented by the average value per second and the C2 error is represented by the number.
- the three types of dyes obtained by the method described in the section (1) of the method for purifying the dye are mixed and mixed in the weight ratio shown in Table 2 below. While adjusting the number and clarity with the three rolls according to the method described in, the maximum particle size is 80 m, 60 zm, 50 m, and 40 m using a gage gauge. A soot-like colorant was obtained.
- a dye is mixed into a plastic substrate of an optical information recording medium such as a CD according to the type and use of the optical information recording medium.
- the type and use of the optical information recording medium can be determined instantaneously, and the particle size of the dye mixed into the plastic substrate is set to an appropriate value. In this respect, it is also possible to obtain good characteristics.
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95935561A EP0737965B1 (en) | 1994-10-27 | 1995-10-25 | Optical information recording medium and its manufacturing method |
AU37535/95A AU710022B2 (en) | 1994-10-27 | 1995-10-25 | Optical information recording medium and method for producing same |
AT95935561T ATE215257T1 (de) | 1994-10-27 | 1995-10-25 | Optisches aufzeichnungsmedium und verfahren zu dessen herstellung |
US08/666,481 US5840395A (en) | 1994-10-27 | 1995-10-25 | Optical information recording medium and method for producing same |
CA002178958A CA2178958C (en) | 1994-10-27 | 1995-10-25 | Optical information recording medium and method for producing same |
MX9602322A MX9602322A (es) | 1994-10-27 | 1995-10-25 | Medio de registro de informacion optica y metodo para producirlo. |
DK95935561T DK0737965T3 (da) | 1994-10-27 | 1995-10-25 | Optisk informationsregistreringsmedie og fremgangsmåde ved fremstilling heraf |
DE69526066T DE69526066T2 (de) | 1994-10-27 | 1995-10-25 | Optisches aufzeichnungsmedium und verfahren zu dessen herstellung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6264282A JPH08124212A (ja) | 1994-10-27 | 1994-10-27 | 光学的情報記録媒体及びその製造方法 |
JP6/264282 | 1994-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996013834A1 true WO1996013834A1 (fr) | 1996-05-09 |
Family
ID=17401008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/002190 WO1996013834A1 (fr) | 1994-10-27 | 1995-10-25 | Support d'enregistrement d'informations optiques et son procede de fabrication |
Country Status (13)
Country | Link |
---|---|
US (1) | US5840395A (ja) |
EP (1) | EP0737965B1 (ja) |
JP (1) | JPH08124212A (ja) |
KR (1) | KR100387063B1 (ja) |
CN (1) | CN1097259C (ja) |
AT (1) | ATE215257T1 (ja) |
AU (1) | AU710022B2 (ja) |
DE (1) | DE69526066T2 (ja) |
DK (1) | DK0737965T3 (ja) |
ES (1) | ES2171197T3 (ja) |
MX (1) | MX9602322A (ja) |
MY (1) | MY116381A (ja) |
WO (1) | WO1996013834A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2269383T3 (es) | 2000-04-28 | 2007-04-01 | Teijin Chemicals, Ltd. | Granulos coloreantes patron para moldes opticos y substrato de disco optico coloreado. |
US6944115B2 (en) * | 2000-09-29 | 2005-09-13 | General Electric Company | Colored data storage media |
US6733950B2 (en) | 2001-03-14 | 2004-05-11 | General Electric Company | Limited play data storage media and method for limiting access to data thereon |
JP2002322290A (ja) * | 2001-04-26 | 2002-11-08 | Teijin Chem Ltd | 光学成形品用着色マスターペレットおよび着色された光ディスク基板 |
US6475588B1 (en) | 2001-08-07 | 2002-11-05 | General Electric Company | Colored digital versatile disks |
US6475589B1 (en) * | 2001-12-17 | 2002-11-05 | General Electric Company | Colored optical discs and methods for making the same |
US7087282B2 (en) | 2003-07-15 | 2006-08-08 | General Electric Company | Limited play optical storage medium, method for making the same |
US7202292B2 (en) | 2003-07-15 | 2007-04-10 | General Electric Company | Colored polymeric resin composition with 1,8-diaminoanthraquinone derivative, article made therefrom, and method for making the same |
CA2533664A1 (en) * | 2003-07-29 | 2005-02-03 | Koninklijke Philips Electronics N.V. | Content information layer for an optical record carrier |
DE10344384B4 (de) * | 2003-09-23 | 2008-07-10 | Bundesdruckerei Gmbh | Verfahren zur Überprüfung eines Authentifizierungsmerkmals eines rotierenden optischen Datenträgers und digitaler Datenträger |
US7157129B2 (en) * | 2003-10-24 | 2007-01-02 | General Electric Company | Method for making highly colored DVDs |
US6977107B1 (en) * | 2004-07-14 | 2005-12-20 | Tdk Corporation | Optical recording medium and method for making the same |
EP1956596A4 (en) * | 2005-11-30 | 2010-10-06 | Fujifilm Corp | OPTICAL INFORMATION RECORDING MEDIUM, METHOD FOR PRODUCING AN OPTICAL INFORMATION RECORDING MEDIUM, METHOD FOR RECORDING VISIBLE INFORMATION, USE OF A MIXTURE AND MIXTURE |
JP2009048711A (ja) * | 2007-08-21 | 2009-03-05 | Ricoh Co Ltd | 光記録媒体の製造方法及び光記録媒体 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59118132U (ja) * | 1983-01-26 | 1984-08-09 | ティーディーケイ株式会社 | 光デイスク |
JPH03214438A (ja) * | 1990-01-19 | 1991-09-19 | Fujitsu Ltd | 光ディスク |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991013434A1 (en) * | 1990-02-27 | 1991-09-05 | Hoechst Celanese Corporation | Process and solvent solution for coating a substrate with a naphthalocyanine chromophore |
JPH04271031A (ja) * | 1991-01-17 | 1992-09-28 | Pioneer Electron Corp | 光記録媒体 |
-
1994
- 1994-10-27 JP JP6264282A patent/JPH08124212A/ja active Pending
-
1995
- 1995-10-25 CN CN95191092A patent/CN1097259C/zh not_active Expired - Lifetime
- 1995-10-25 US US08/666,481 patent/US5840395A/en not_active Expired - Lifetime
- 1995-10-25 AU AU37535/95A patent/AU710022B2/en not_active Ceased
- 1995-10-25 DK DK95935561T patent/DK0737965T3/da active
- 1995-10-25 KR KR1019960703454A patent/KR100387063B1/ko not_active IP Right Cessation
- 1995-10-25 EP EP95935561A patent/EP0737965B1/en not_active Expired - Lifetime
- 1995-10-25 WO PCT/JP1995/002190 patent/WO1996013834A1/ja active IP Right Grant
- 1995-10-25 ES ES95935561T patent/ES2171197T3/es not_active Expired - Lifetime
- 1995-10-25 MX MX9602322A patent/MX9602322A/es unknown
- 1995-10-25 AT AT95935561T patent/ATE215257T1/de active
- 1995-10-25 DE DE69526066T patent/DE69526066T2/de not_active Expired - Lifetime
- 1995-10-26 MY MYPI95003218A patent/MY116381A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59118132U (ja) * | 1983-01-26 | 1984-08-09 | ティーディーケイ株式会社 | 光デイスク |
JPH03214438A (ja) * | 1990-01-19 | 1991-09-19 | Fujitsu Ltd | 光ディスク |
Also Published As
Publication number | Publication date |
---|---|
JPH08124212A (ja) | 1996-05-17 |
AU3753595A (en) | 1996-05-23 |
EP0737965A4 (en) | 1997-10-22 |
DE69526066T2 (de) | 2002-10-31 |
ATE215257T1 (de) | 2002-04-15 |
DE69526066D1 (de) | 2002-05-02 |
KR100387063B1 (ko) | 2003-08-14 |
EP0737965B1 (en) | 2002-03-27 |
MX9602322A (es) | 1997-04-30 |
AU710022B2 (en) | 1999-09-09 |
CN1097259C (zh) | 2002-12-25 |
EP0737965A1 (en) | 1996-10-16 |
DK0737965T3 (da) | 2002-06-17 |
CN1137837A (zh) | 1996-12-11 |
KR970700355A (ko) | 1997-01-08 |
ES2171197T3 (es) | 2002-09-01 |
US5840395A (en) | 1998-11-24 |
MY116381A (en) | 2004-01-31 |
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