WO2000039246A1 - Particules fluorescentes, leur procedes de preparation et papier anti-falsification utilisant ces particules fluorescentes - Google Patents
Particules fluorescentes, leur procedes de preparation et papier anti-falsification utilisant ces particules fluorescentes Download PDFInfo
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- WO2000039246A1 WO2000039246A1 PCT/JP1999/007208 JP9907208W WO0039246A1 WO 2000039246 A1 WO2000039246 A1 WO 2000039246A1 JP 9907208 W JP9907208 W JP 9907208W WO 0039246 A1 WO0039246 A1 WO 0039246A1
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- fluorescent
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- 235000004298 Tamarindus indica Nutrition 0.000 description 1
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- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000305 astragalus gummifer gum Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
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- 239000000981 basic dye Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 235000015115 caffè latte Nutrition 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- VYXSBFYARXAAKO-WTKGSRSZSA-N chembl402140 Chemical compound Cl.C1=2C=C(C)C(NCC)=CC=2OC2=C\C(=N/CC)C(C)=CC2=C1C1=CC=CC=C1C(=O)OCC VYXSBFYARXAAKO-WTKGSRSZSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- XLIDPNGFCHXNGX-UHFFFAOYSA-N dialuminum;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Si+4] XLIDPNGFCHXNGX-UHFFFAOYSA-N 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- YQGOJNYOYNNSMM-UHFFFAOYSA-N eosin Chemical compound [Na+].OC(=O)C1=CC=CC=C1C1=C2C=C(Br)C(=O)C(Br)=C2OC2=C(Br)C(O)=C(Br)C=C21 YQGOJNYOYNNSMM-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 235000010494 karaya gum Nutrition 0.000 description 1
- 239000000231 karaya gum Substances 0.000 description 1
- 229940039371 karaya gum Drugs 0.000 description 1
- 235000010485 konjac Nutrition 0.000 description 1
- 239000000252 konjac Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 150000003893 lactate salts Chemical class 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000007909 melt granulation Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000083 poly(allylamine) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229920003124 powdered cellulose Polymers 0.000 description 1
- 235000019814 powdered cellulose Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- DLOBKMWCBFOUHP-UHFFFAOYSA-N pyrene-1-sulfonic acid Chemical compound C1=C2C(S(=O)(=O)O)=CC=C(C=C3)C2=C2C3=CC=CC2=C1 DLOBKMWCBFOUHP-UHFFFAOYSA-N 0.000 description 1
- 235000021254 resistant starch Nutrition 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- ZEGFMFQPWDMMEP-UHFFFAOYSA-N strontium;sulfide Chemical compound [S-2].[Sr+2] ZEGFMFQPWDMMEP-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- 238000004078 waterproofing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
- C09K11/661—Chalcogenides
- C09K11/662—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7737—Phosphates
- C09K11/7738—Phosphates with alkaline earth metals
- C09K11/7739—Phosphates with alkaline earth metals with halogens
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7784—Chalcogenides
- C09K11/7787—Oxides
- C09K11/7789—Oxysulfides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/32—Multi-ply with materials applied between the sheets
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
Definitions
- the present invention relates to fluorescent coloring particles and a method for producing the same, and further relates to a forgery preventing paper using the fluorescent coloring particles.
- anti-counterfeit papers are known in which a particulate, fibrous, or strip-like substance having a property of emitting visible light (fluorescent color) upon irradiation with ultraviolet light is included in the paper.
- This anti-counterfeit paper irradiates the paper with ultraviolet light, such as black light, so that the fluorescent coloring material contained in the paper emits light of a specific wavelength in the visible light range.
- ultraviolet light such as black light
- anti-counterfeit paper in which a particulate fluorescent coloring material is imprinted on paper
- the applicant of the present application has disclosed in Japanese Utility Model Application Laid-Open No. 6-65000 (Japanese Utility Model Application No. 4-151094) an ultraviolet ray.
- Japanese Utility Model Application Laid-Open No. 6-65000 Japanese Utility Model Application No. 4-151094
- an ultraviolet ray We have proposed a forgery-prevention paper in which a substance that emits fluorescent light is applied to paper upon irradiation of the paper, and the fluorescent light-emitting particles obtained by pulverizing the material are applied to the paper.
- Each of the above-mentioned prior arts is a forgery prevention paper in which a particulate fluorescent coloring material is contained in the paper.
- the anti-counterfeit paper proposed in Japanese Utility Model Laid-Open No. 6-650 has the appearance that the fluorescent coloring particles appear to be present in the paper in the form of small, irregularly shaped flocs, but the size of these particles is controlled.
- the anti-counterfeit paper proposed in Japanese Patent Application No. 10-23904 uses fluorescent coloring particles using a fluorescent dye, so that it is inevitably higher than the one using fluorescent pigments. There was a problem that the light resistance was poor and the intensity of coloring by ultraviolet irradiation was weak. There was also a problem that only a limited hue of fluorescent color was obtained.
- the fluorescent coloring particles used in the anti-counterfeit paper proposed in Japanese Patent Application No. 10-927477 use a fluorescent pigment, so that the emission intensity is higher than that of the fluorescent coloring particles using a fluorescent dye. Although it has the advantage of being large and having excellent light fastness, it requires expensive equipment for its manufacture, and has a problem that the production yield is poor.
- the present invention has been made in view of such a background, and provides completely novel fluorescent coloring particles and a method for producing the same. Further, by including the fluorescent coloring particles in paper, irradiation with ultraviolet light enables It is an object of the present invention to provide forgery-prevention paper which has a distinctive columnar or true spherical particle shape and can be visually recognized in various hues and has excellent light resistance. That is, the fluorescent coloring particles of the present invention are water-insoluble dyes and / or pigments that emit fluorescence when irradiated with ultraviolet rays (hereinafter, abbreviated as “fluorescent dye” and “fluorescent pigment”, and when both are included, referred to as “fluorescent agent”). This may be abbreviated) and a powdered substance.
- the fluorescent coloring particles are obtained by mixing a fluorescent dye and Z or a fluorescent pigment with a powdered substance, and granulating the mixture. Can be manufactured.
- the fluorescent coloring particles of the present invention comprise a granulated substance of a powdery substance and a coating layer of a fluorescent dye and Z or a fluorescent pigment formed on the surface of the granulated substance.
- the colored particles can be produced by granulating a powdery substance and coating a fluorescent dye and / or a fluorescent pigment on the surface of the granulated substance.
- the fluorescent coloring particles of the present invention are formed of a granulated product of a mixture of a fluorescent dye and / or a fluorescent pigment, a powdered substance, and a white pigment, and the fluorescent coloring particles are a fluorescent dye and a fluorescent pigment. And a powdery substance and a white pigment are mixed, and the mixture is granulated.
- the fluorescent coloring particles of the present invention can be used to form a mixture of a powdery substance and a white pigment. And a coating layer of a fluorescent dye and / or a fluorescent pigment formed on the surface of the granulated material.
- the fluorescent coloring particles are formed by mixing a mixture of a powdery substance and a white pigment. It can be produced by granulating and coating the surface of the granulated material with a fluorescent dye and Z or a fluorescent pigment.
- the fluorescent coloring particles of the present invention include a granulated substance of a powdery substance, a coating layer of a white pigment formed on the surface of the granulated substance, and a fluorescent dye formed on the outside of the white pigment coated layer. And a coating layer of Z or a fluorescent pigment, wherein the fluorescent coloring particles granulate a powdery substance, coat a white pigment on the surface of the granulated substance, and further form the white pigment. It can be manufactured by coating a fluorescent dye and z or a fluorescent pigment on the outside of the coating layer.
- water-resistant fluorescent coloring particles can be produced by using a resin binder having two or more reactive groups that react with a hydroxyl group contained in a powdery substance during granulation or coating.
- the water-resistant fluorescent coloring particles of the present invention include a powdery substance having a hydroxyl group, a fluorescent dye and / or a fluorescent pigment, and a resin binder having two or more reactive groups reacting with the hydroxyl group contained in the powdery substance (hereinafter referred to as a resin binder).
- a resin binder a resin binder having two or more reactive groups reacting with the hydroxyl group contained in the powdery substance
- the fluorescent coloring particles are obtained by mixing the powdery substance with a fluorescent dye and Z or a fluorescent pigment and the resin binder. It can be produced by granulating this mixture.
- the water-resistant photochromic particles of the present invention further comprise a granulated product of a mixture of a powdery substance having a hydroxyl group, a white pigment and a fluorescent dye, and a mixture of Z or a photochromic pigment and a resin binder.
- the fluorescent coloring particles can be produced by mixing a powdery substance, a white pigment, a fluorescent dye and / or a fluorescent pigment and a resin binder, and granulating the mixture.
- the water-resistant fluorescent coloring particles of the present invention are powdery having a hydroxyl group.
- the water-resistant fluorescent coloring particles of the present invention include a granulated product of a mixture of a powdery substance having a hydroxyl group and a white pigment, a fluorescent dye and Z or a fluorescent pigment formed on the surface of the granulated product and a resin. And a coating layer of a mixture with a binder.
- the fluorescent coloring particles are formed by mixing a powdery substance and a white pigment, and granulating the mixture. It can be produced by coating a fluorescent pigment with a resin binder.
- the water-resistant fluorescent coloring particles of the present invention include a granulated substance of a powdery substance having a hydroxyl group, a coating layer of a white pigment formed on the surface of the granulated substance, and a white pigment coating.
- the present invention at the time of granulation or coating, interaction between the anionic binder or the cationic binder contained in the granulated material and the cationic substance or anionic substance contained in the coating layer is performed.
- fluorescent coloring particles having water resistance can be produced.
- the water-resistant fluorescent coloring particles of the present invention include a granulated mixture of a powdery substance and an anionic binder, and a fluorescent substance formed on the surface of the granulated substance.
- the fluorescent coloring particles of the present invention include a granulated product of a mixture of a powdery substance, a white pigment and an anionic binder, a fluorescent dye and / or a fluorescent pigment formed on the surface of the granulated substance and a cationic substance. And a coating layer of a mixture of a fluorescent substance and a fluorescent pigment.
- the fluorescent coloring particles are obtained by granulating a powdery substance and a white pigment with an anionic binder, and forming a fluorescent dye and a fluorescent pigment on the surface of the granulated substance. It can be produced by coating Z or a fluorescent pigment with a cationic substance.
- the fluorescent coloring particles of the present invention are a granulated mixture of a powdery substance and a cationic binder, and a mixture of a fluorescent dye or Z or a fluorescent pigment formed on the surface of the granulated substance and an anionic substance.
- These fluorescent coloring particles are obtained by granulating a powdery substance with a cationic binder, and applying a fluorescent dye and Z or a fluorescent pigment on the surface of the granulated substance to an anionic substance. It can be manufactured by coating with.
- the fluorescent coloring particles of the present invention include a granulated mixture of a powdery substance, a white pigment, and a cationic binder, a fluorescent dye and a fluorescent pigment formed on the surface of the granulated substance, or a fluorescent pigment and an anionic substance. And a coating layer of a mixture of a fluorescent substance and a fluorescent pigment.
- the fluorescent coloring particles are obtained by granulating a powdery substance and a white pigment with a cationic binder, and a fluorescent dye and / Or it can be manufactured by coating fluorescent pigments with anionic substances.
- the fluorescent coloring particles of the present invention are used for granulating a mixture containing all the particle components such as a powdery substance, a fluorescent dye and / or a fluorescent pigment.
- a mixture type and a type (a core-shell type) in which a coating layer containing a fluorescent dye and / or a fluorescent pigment is formed on the outside of a granulated material containing a powdery substance.
- Mixture-type particles have the advantage of being easy to manufacture, but from the point of view of fluorescent coloring, fluorescent dyes and fluorescent pigments that are present near the particle surface emit fluorescent colors but are present inside the particles. They tend to be less fluorescent.
- the core-shell type particles in which the fluorescent dye or fluorescent pigment is present only in the outer coating layer of the core granule, contribute all to the fluorescent color. Become. Therefore, when the same amount of fluorescent dye or fluorescent pigment is used, there is an advantage that the core-shell type particles can obtain a stronger fluorescent coloring intensity than the mixture type particles.
- the anti-counterfeit paper of the present invention is characterized in that the above-described fluorescent coloring particles are contained in the paper, or that the coating liquid containing the above-described fluorescent coloring particles is applied to the paper surface. It is.
- Such anti-counterfeit paper can be used under ordinary light (normal light such as natural light, incandescent light, fluorescent light, etc.). Thus, the particles emit a fluorescent color, so that the authenticity of the paper can be determined.
- FIG. 1 is an electron micrograph of a spherical fine granular starch before forming a force-olin coating layer in Example 6 of the present invention.
- FIG. 2 is an electron micrograph of the fluorescent coloring particles obtained in Example 6 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- Representative examples of the powdery substance used in the present invention include starch. More specifically, natural starches such as potato starch, corn starch, sweet potato starch, tapio starch, sago starch, rice starch, amaranth starch, taro starch, and soybean starch, and their modified starches (dextrin, acid degradation) Starch, oxidized starch, pre-alpha starch, starch derivatives such as etherified, esterified, cross-linked, grafted starch, heat-moisture treated starch, etc.).
- Flour such as flour, rice flour and corn flour
- water-insoluble powdered cellulose such as cellulose powder, bacterial cell mouth, microfibrous cellulose, crystalline cellulose
- wood flour such as Solerose, Etinolacenorelose, Hydroxyshetylsenorellose, Hydroxypropylsenoroleose, Hydroxyshechinolemethylcellulose, Hydroxypropylmethylnorenosenorellose, and quaternary cationized hydroxysetylenorelose -Derivatives: alginic acid, agar, funeral, carrageenan, furseleran, pectin, chitin, chitosan, guar gum, locust bean gum, tamarind gum, arabic gum, tragacanth gum, karaya gum, taragamu, konjac, toro Polysaccharides such as roois, pullulan and dextran and derivatives thereof; powdered sugars
- a powdery inorganic substance can be used as the powdery substance.
- powdered inorganic substances there are titanium dioxide, silicates (potassium, clay, bentonite, talc, synthetic aluminum silicate, synthetic calcium silicate, etc.) known as fillers, and silicic acid (diatomaceous earth, silica powder, Hydrous fine silica, anhydrous fine silica), calcium carbonate, zinc oxide, magnesium carbonate, calcium carbonate and magnesium, aluminum hydroxide, barium sulfate, calcium sulfate, calcium sulfite, acid Iron oxide and the like.
- powdery substances may be used alone or in combination of two or more.
- a powdery substance having a hydroxyl group such as starch, cereal flour, cellulose, other polysaccharides, sugar, polyvinyl alcohol, etc.
- a resin binder having a reactive group that reacts with the hydroxyl group Is effective in imparting water resistance to the fluorescent coloring particles, and is expensive because the coloring intensity does not decrease even when coated with the fluorescent dye and / or pigment.
- the resin binder can also be added to the coating liquid when coating the resin binder within a range that does not impair the object of the present invention, since it can also serve the role of increasing the amount of the resin binder.
- anti-counterfeit paper When anti-counterfeit paper is manufactured by incorporating fluorescent coloring particles prepared by using starch, powdered sugar, polyvinyl alcohol, etc. in the powdery substance, the place where the particles are present becomes partially transparent. Tend to be. Since such transparent parts can be viewed under ordinary light, the appearance of printing may be impaired when printing on paper.
- a white pigment may be used in combination with a powdery substance such as starch. This makes it difficult to see the presence of fluorescent particles in the paper under ordinary light, which not only does not impair the aesthetics of printing, but also identifies that countermeasures are taken. As a result, the forgery prevention effect can be further enhanced.
- the white pigment those having high whiteness among the powdered inorganic substances described above, for example, titanium dioxide, kaolin, clay, talc, calcium carbonate, zinc chloride, zinc sulfide, zinc oxide, magnesium carbonate, calcium carbonate and magnesium carbonate , Aluminum hydroxide, barium sulfate and the like can be used. In the present invention, these white pigments may be used alone or in combination of two or more. No.
- those having a large refractive index of light that is, those having a refractive index of 2.0 or more, have an effect of preventing the above-mentioned fluorescent coloring particles from becoming transparent in paper. large.
- examples include titanium dioxide (refractive index: about 2.6), zinc sulfide (2.3), zinc oxide (2.0), and the like.
- the fluorescent agent used in the present invention needs to be insoluble in water. If it is soluble in water, these fluorescent agents are eluted from the fluorescent coloring particles added to the slurry when the anti-counterfeit paper is manufactured, as described later in detail, and the object of the present invention cannot be achieved. .
- insoluble in water means that the fluorescent agent does not elute in water after the production of the fluorescent particles, not the property of the fluorescent agent alone. That is, even a water-soluble fluorescent dye such as a spirofuran-based fluorescent dye reacts with a water-proofing agent used together with the production of fluorescent particles to become water-insoluble, or a water-soluble type which reacts with a binder to become water-insoluble.
- a water-soluble fluorescent dye such as a spirofuran-based fluorescent dye reacts with a water-proofing agent used together with the production of fluorescent particles to become water-insoluble, or a water-soluble type which reacts with a binder to become water-insoluble.
- any type of fluorescent dye which is fixed to the fluorescent particles and becomes water-insoluble due to the influence of the sulfuric acid band added to the slurry during the production of the anti-counterfeit paper is a water-insoluble ⁇ light dye or fluorescent pigment Shall fall under the category.
- Examples of the water-insoluble dye which emits light upon irradiation with ultraviolet light used in the present invention namely, a fluorescent dye
- a fluorescent dye examples include fluorescein, coumarin, oxazole, pyrazoline, thiadiazol, spiropyran, and pyrene sulfonate.
- Well-known fluorescent dyes such as a dye, a benzimidazole type and a diaminostilbene type can be used.
- organic or inorganic fluorescent pigment is used as a water-insoluble pigment that emits fluorescent light upon irradiation with ultraviolet rays, that is, as a fluorescent pigment.
- organic fluorescent pigment Specifically, resins such as polyvinyl chloride resin, alkyd resin, polymethacrylate resin, urea resin, and melamine resin are used for fluorescein, eosin, rhodamine 6G, rhodamine B, and basic yellow HG. And the like, which are uniformly dissolved and pulverized.
- the inorganic fluorescent pigment include zinc sulfide activated with copper, silver, manganese, etc .; zinc gayate activated with manganese, etc .; zinc sulfide activated with silver, copper, etc .; Domiumu sulfide activated with bismuth Karushiu beam; Samariumu, strontium sulfide activated with Seriumu like; evening was activated with lead such as tungsten calcium; S r 5 (P_ ⁇ 4) activated with europium or the like 3 C 1; may be mentioned activated Y 2 0 3 or the like by europium or the like; Z n 2 G e 0 2 activated with manganese etc .; Yuropi ⁇ Y 2 0 activated with arm or the like 2 S. If necessary, sensitizers such as anthraquinone-based acetophenone-based sensitizers can be used in combination.
- these fluorescent pigments usually have an average particle size of 0.5 to 5 m. If the average particle size is less than 0.5 m, the emission intensity due to irradiation with ultraviolet rays may be weakened.On the other hand, if the average particle size exceeds 5 ⁇ m, the granulated product obtained by mixed granulation and coating may be used. The reason for this is that the fluorescent coloration tends to be uneven.
- fluorescent pigments may be used alone or in combination of two or more.
- the hue of the fluorescent color obtained when two or more fluorescent pigments are used in combination shows a so-called "additive color mixing" phenomenon.
- additive color mixing a pigment that emits fluorescence in red and a pigment that emits blue-violet fluorescence are used together, it emits blue-blue fluorescence, and similarly, green + red becomes yellow, red + blue-violet becomes red, and red + green + blue-violet. Fluoresces white.
- fluorescent pigments have a wide variety of hues that emit fluorescent light. Has a very rich feature.
- the fluorescent coloring particles When producing fluorescent coloring particles using a water-insoluble and organic solvent-soluble fluorescent dye or fluorescent pigment as the fluorescent agent used in the present invention, the following specific effects can be obtained.
- the organic solvent-soluble fluorescent agent As a water-insoluble and organic solvent-soluble fluorescent agent, for example, an aminoketone dye or the like can be preferably used.
- the fluorescent coloring particles of the present invention are contained in paper to produce a forgery prevention paper
- the fluorescent coloring particles when the fluorescent coloring particles are added to the stock in the paper making process, the wet paper in the paper making process is fluorescently colored.
- the wet paper in the paper making process is fluorescently colored.
- it has water resistance to prevent the fluorescent coloring particles from disintegrating in water.
- two reactive groups that react with the hydroxyl group of powdered substances such as starch, flour, cellulose, other polysaccharides, sugars, and polyvinyl alcohol are provided.
- the resin having the above is used as a binder.
- resin binder this type of resin is referred to as a “resin binder”.
- resin binders include, for example, polyamine epichlorohydrin resins, water-soluble alkylated amino resins, water-soluble methylated melamine resins, water-soluble phenol resins, urea resins, epoxy resins. Examples thereof include a polyamide resin and a methylolated polyacrylamide resin.
- granulation may be performed by mixing a resin binder with the components of the fluorescent coloring particles.
- the fluorescent agent may be coated on the surface of the granulated material other than the fluorescent agent with a resin binder.
- the interaction between the anionic binder contained in the granulated material and the cation material contained in the coating layer, or A method utilizing the interaction between the force-containing binder contained in the granules and the anionic substance contained in the coating layer can be employed.
- the components of the fluorescent coloring particles excluding the fluorescent agent are granulated with an anionic binder, and the fluorescent agent is coated on the surface of the granulated material with a force-based substance to thereby provide water resistance to the anionic binder.
- the components of the fluorescent coloring particles excluding the fluorescent agent are granulated with a cationic binder, and the fluorescent agent is coated on the surface of the granulated material with an anionic substance to thereby provide water resistance to the cationic binder.
- the fluorescent agent is coated on the surface of the granulated material with an anionic substance to thereby provide water resistance to the cationic binder.
- anionic binder used in the present invention examples include alginic acid, sodium alginate, carboxymethyl cellulose, carboxymethyl starch, carboxymethyl gum, carboxymethyl xanthan gum, carboxymethyl tara gum, low methoxyl pectin, and carrageenan. And polysaccharides having anionic groups, such as polyacrylic acid and polyacrylic acid soda, and synthetic polymers having anionic groups.
- Cationic substances coated with a fluorescent agent on the surface of the granulated material in order to impart water resistance to the anionic binder include salts of polyvalent metal ions, such as calcium, magnesium, nickel, and boron. Hydrochlorides, sulfates, carbonates, phosphates, lactates, and hydroxides of aluminum, titanium, and the like can be used.
- cationic water-soluble polymer substances such as cationic polyacrylamide, polyethyleneimine, polyvinylpyrrolidone, cationic Polyamide resin, polyarylamine, cationic polymer grafted starch, cationized starch, cationized guar gum, cationized xanthan gum, cationized tara gum and the like can also be used as the cationic substance.
- the cationic water-soluble polymer substances shown above as the cationic substance can be used. That is, cationic polyacrylamide, polyethyleneimine, polyvinylpyrrolidone, cationic polyimide resin, polyallylamine, thiothionic polymer-grafted starch, cationized starch, cationized guar gum, cationized xanthan gum, cationized gum Cationic water-soluble high molecular substances such as tara gum can be used as the cationic binder.
- the anionic substance coated on the surface of the granulated material together with the fluorescent agent includes the anionic substance having the anionic group shown above as the anionic binder.
- Synthetic polymers having a saccharide or anionic group can be used. That is, alginic acid, sodium alginate, carboxymethyl cellulose, carboxymethyl starch, carboxymethyl guar gum, carboxymethyl xanthan gum, carboxymethyl tara gum, low methoxyl pectin, carrageenannan, polyacrylic acid, polyacrylic acid Acid soda or the like can be used as the anionic substance.
- the particle components such as a powdery substance, a powdery substance and a white pigment, a powdery substance and a fluorescent agent, and a powdery substance, a white pigment and a fluorescent agent, granulation of starch or the like is conventionally performed.
- a method a commonly used method can be adopted. That is, tumbling granulation, extrusion granulation, spray drying granulation, fluidized bed granulation, compression granulation, melt granulation, crushing granulation, stirring granulation, etc. can be used. it can.
- the spray drying granulation method has the feature that small spherical particles can be produced.
- the granulation properties may be insufficient depending on the type and amount of the binder used.
- the various binders described above hydroxypropylcellulose, methylcellenolose, hydroxypropylmethylcellulose, hydroxyxetinocellulose, oxidized starch, dextrin
- a common binder such as described above may be used in combination and kneaded as necessary, followed by extrusion granulation.
- the granulated material obtained by extrusion granulation is generally used after sizing with a sizing machine, but if the sizing properties are poor due to the type and amount of binder used, a surfactant or lubricant may be used.
- the sizing properties of the granulated product can be improved by adding as required.
- the granule when coating a fluorescent agent or a white pigment on the surface of the granule, the granule is dried, and then the fluorescent white pigment is liquid (dispersed) together with the binder.
- a coating method or a method in which a fluorescent agent or a white pigment is coated in a powder form while spraying a binder with a liquid can be adopted.
- a coating apparatus not only a dedicated coating machine but also a granulator used in the above-mentioned granulation method capable of performing a coating process (for example, a tumbling granulator, a fluidized bed granulator or a drying machine). Can be used while spraying the liquid during drying in the machine).
- any device other than a dedicated coating machine can be used as long as it can be used for the coating process. it can.
- the shape of the fluorescent coloring particles of the present invention produced by the method described above varies depending on the granulation method used. For example, after extrusion granulation, the sized granules have a rounded cylindrical shape. The cross section has a circular or nearly circular shape. If the length is the same or almost the same as this diameter, it appears to emit light in a spherical shape. If the length is long, it appears to emit light in a cocoon shape.
- the product obtained by the spray-drying granulation method is substantially spherical
- the product obtained by the tumbling granulation method and the stirring granulation method is substantially spherical
- the product obtained by the fluidized-bed granulation method is like It tends to be polygonal, but depending on the conditions, the same granulation method may result in different shapes.
- the particle size of the fluorescent particles can be appropriately controlled from several meters to several hundreds / im, but in the present invention, the particle size is preferably adjusted to a range of 50 to 800 m. If the particle size is less than 50 m, it tends to be difficult to visually recognize the emitted light even when irradiated with ultraviolet light under ordinary light when included in paper. The larger the particle size, the easier it is to visually recognize, but the swelling of the portion where the particles are present deteriorates the feel and adversely affects printability. In consideration of the balance between the two, it is preferable to adjust the particle size to the above range.
- the photochromic particles may be used without coloring, or may be used after coloring.
- Uncolored fluorescent particles have a hue similar to white or white under normal light, so if they are included in uncolored paper, the fluorescent particles will be present in the paper. It is difficult to visually recognize that When coloring the fluorescent coloring particles, by adjusting the hue of the fluorescent coloring particles to approximate the coloring degree of the paper, it becomes difficult to visually recognize the presence of the fluorescent coloring particles in the paper. When the colored fluorescent particles are contained in uncolored paper, the presence of the fluorescent particles can be visually recognized under ordinary light.
- the fluorescent coloring particles when the fluorescent coloring particles are colored, it is preferable that they are colored so pale that the hue cannot be reproduced particularly by a color copier.
- Forgery-prevention printed matter for example, gift certificates
- the density adjustment is performed as described above, the density of the copy portion corresponding to the print portion increases, and it can be easily determined that the ticket is a counterfeit ticket by itself.
- the coloring of the fluorescent coloring particles is preferably a dropout color in optical reading.
- the surface of anti-counterfeit printed matter, such as various gift certificates and tickets, is often printed to read 01 ⁇ ⁇ 0 ⁇ R.
- OMR is an abbreviation of “Optica 1 Mark R ecognition J” .Light is emitted from a light source to the paper and received by the light receiving element, and the position of the mark on the paper is recognized by recognizing the position. Is a general term for a system used for tabulation and classification by contrasting with numbers and symbols, and the paper used for this is called OMR paper.QCR stands for "Optica IC haracter R ecognitio nJ" In the same way, it is a general term for a system that optically reads letters and numbers, and the paper used for this is called 0 CR paper.
- the dropout color (Dr0p0utCoIor) is a combination of a light source and a light-receiving element.
- the human eye recognizes the printed part as a completely different color from a white background. Then, the color is such that the difference disappears and feels the same as a white background.
- color light in an appropriate wavelength region is set according to the combination of the type of light source used and the light receiving element, and a drop-out color corresponding to that is used.
- JIS ⁇ C 6 2 5 3 “Printing specifications for optical character recognition” stipulates light-receiving devices that support eight wavelength ranges.
- the portion where the particles are present is recognized as a color completely different from a white background to human eyes, but OMR and 0
- the difference disappears and is perceived as the same as a white background.
- the fluorescent coloring particles used in the present invention have a configuration in which the hue when colored by irradiation with ultraviolet light is different from the hue under ordinary light, so that the unexpectedness is enhanced and the anti-counterfeiting ability is further enhanced. effective.
- fluorescent particles appear to be colored red under ordinary light, and become more surprising if they appear to emit green or blue when irradiated with ultraviolet light.
- a method in which a coloring agent is used in various stages of manufacturing the fluorescent coloring particles as described above, or a method in which the fluorescent coloring particles are dyed with a dye after the production is performed.
- coloring agent coloring dyes such as direct dyes, acid dyes, and basic dyes, and inorganic and organic coloring pigments can be used.
- coloring having light resistance it is preferable to use an inorganic pigment as a coloring agent.
- the coloring agent of the fluorescent coloring particles When a water-insoluble and organic solvent-soluble dye is used as the coloring agent of the fluorescent coloring particles, the following specific effects can be obtained.
- the colored fluorescent particles are contained in paper and then printed to produce anti-counterfeit prints, when the printed display is tampered with an organic solvent, the fluorescent particles are soluble in the organic solvent. The trace of the dye eluted and diffused around can be visually observed, and the presence or absence of tampering can be reliably recognized.
- the fluorescent coloring particles of the present invention having a structure in which a coating layer containing a fluorescent agent is formed on the surface of a granulated material containing a powdery substance, a dye insoluble in water and soluble in an organic solvent is formed together with the powdery substance. It is also possible to adopt an embodiment in which a fluorescent pigment having a hue close to white or white under ordinary light is used as the fluorescent agent in the coating layer by being contained in the particles. Such fluorescent coloring particles are contained in the paper because the color of the organic solvent-soluble dye in the granulated material is concealed by the fluorescent pigment having a hue similar to white or white in the coating layer.
- a forgery-prevented printed matter for example, a passport
- a forgery-prevented printed matter for example, a passport
- the prevention effect can be further enhanced.
- falsification of the printed display is attempted using an organic solvent, it is possible to visually observe traces of the organic solvent-soluble dye eluted from the granulated material, which is the core of the fluorescent coloring particles, and diffused to the surroundings. It is possible to reliably recognize whether or not tampering has occurred.
- water-insoluble and organic solvent-soluble dye for example, dyes of monoazo type, disazo type, metal complex type monoazo type, anthraquinone type, phthalocyanine type, triarylmethane type and the like can be used.
- organic solvents in which these dyes are soluble are described in the Dye Handbook.
- a water-insoluble and organic solvent-soluble dye as described above if a dye that emits fluorescence when irradiated with ultraviolet light is used as the dye, the dye elutes and diffuses when tampered with an organic solvent. Since the traces that have been tampered with become visible under ultraviolet irradiation, the presence or absence of tampering can be more reliably recognized.
- dyes there can be used, for example, aminoketone dyes which are chromatic under ordinary light and develop various colors under irradiation with ultraviolet rays.
- the anti-counterfeit paper of the present invention is mainly made of paper pulp such as softwood exposed craft pulp (NBKP), hardwood bleached craft pulp (LBKP), softwood exposed sulfurite pulp (NBSP), and thermomechanical pulp (TMP).
- non-wood pulp such as cotton, hemp, bamboo, kraft, kenaf, or synthetic fiber may be used in combination, as required, and the dry paper strength, wet paper strength, size,
- a paper stock is prepared by appropriately adding a fixing agent, a retention aid, a drainage improver, an antifoaming agent, a dye, a coloring pigment, and the like.
- Fluorescent coloring particles are added to the paper stock using a chest or the like, and a known free paper machine such as a fourdrinier paper machine or a circular net paper machine is usually used with a freeness of 550 to 250 m 1 C.S.F. It can be manufactured by making paper using.
- a known free paper machine such as a fourdrinier paper machine or a circular net paper machine is usually used with a freeness of 550 to 250 m 1 C.S.F. It can be manufactured by making paper using.
- the forgery prevention paper is a combined paper of at least three or more paper layers, and the inner layer contains fluorescent coloring particles. Even in the case of such a combined paper, when the ultraviolet rays are irradiated, the ultraviolet rays pass through the outermost layers on the front and back to reach the inner layer, and the fluorescent pigment contained in the fluorescent coloring particles present therein is excited to emit light. be able to.
- sides basis weight of the outermost layer is the magnitude Kunar and ultraviolet difficulty passing Kunar, basis weight of the outermost layer is preferably in a range of 1 5 ⁇ 4 0 g Z m 2 .
- the flow of stock in a fourdrinier paper machine or a round paper machine is used. It is also possible to adopt a method in which fluorescent coloring particles are added during paper feeding and papermaking is performed, or the fluorescent coloring particles are flowed into the bed of a web paper machine to make paper, or a nozzle is attached to a paper sheet on a wire. A method of intermittently or sprinkling the fluorescent coloring particles intermittently or in a stripe shape can also be employed.
- the anti-counterfeit paper of the present invention can also be manufactured by a so-called coating method. That is, the fluorescent coloring particles are converted to starch, polyvinyl alcohol, synthetic rubber latte To a coating solution containing fluorescent coloring particles by adding it to a conventional coating binder such as water and synthetic resin emulsions, or to use these binders and coating white pigments such as cellulose and calcium carbonate.
- the coating liquid may be prepared by using a known coating machine such as Air Knife Co. and the like.
- a coating solution containing fluorescent coloring particles can be applied to the surface of the paper in a stripe shape using a stripe coating machine.
- the forgery prevention paper of the present invention can also be manufactured by a so-called printing method. That is, the fluorescent particles may be mixed with an appropriate vehicle and printed on the surface of paper using a known printing machine such as a screen printing machine or a gravure printing machine. The printing in this case may be performed on the entire surface of the paper, or may be performed after forming a certain pattern. In this case, the forgery prevention paper has a unique effect that only the printed portion emits fluorescent light according to the print pattern.
- the anti-counterfeit paper of the present invention can be produced by a so-called impregnation method. That is, the fluorescent particles may be added to a known binder such as a synthetic rubber latex or a synthetic resin emulsion and impregnated into paper.
- a known binder such as a synthetic rubber latex or a synthetic resin emulsion
- parts by weight and% by weight mean dry parts by weight and dry weight%, respectively.
- Example 1 Production example of fluorescent coloring particles (Example of producing fluorescent coloring particles that are colorless under ordinary light and emit green when irradiated with ultraviolet light) Cornstarch 1 0 0 part by weight, the fluorescent pigment (Mn activated Z n 2 G e 0 2 grains child, average particle size 3. 0 ⁇ m) 1 5 parts by weight, water-soluble methylated melamine emissions based resin [resin binder] ( "SUMITEX RE SIM-3", manufactured by Sumitomo Chemical Co., Ltd.) 10 parts by weight, 30 parts by weight of water, and 1 part by weight of polyoxyethylene stearyl ether [lubricant] for 10 minutes The mixture was mixed and stirred.
- This mixture was extruded into a columnar granule having a diameter of 500 using an extrusion granulator (“Dome Gran”, manufactured by Fuji Padal Co., Ltd.).
- the obtained fluorescent coloring particles are colorless under ordinary light, but using ultraviolet irradiation (a commercially available black light (trade name “FL15BLB15W”, manufactured by Toshiba Corporation)). The same shall apply hereinafter), and the color of the cocoon-shaped green color developed.
- Example 2 Production example of fluorescent coloring particles (Example of production of fluorescent coloring particles that are colorless under ordinary light and emit white light when irradiated with ultraviolet light) Crystalline cellulose (“Avicel”, manufactured by Asahi Chemical Industry Co., Ltd.) ) 1 0 0 part by weight, 1 0 part by weight of zinc oxide [white pigment], fluorescent pigments (Mn activated Z n 2 G e 0 2 particles, an average particle diameter of 3. 0 m) 5 parts by weight, fluorescent pigments (E u Activation St 5
- INM-3 10 parts by weight of hydroxypropyl starch [common binder] (“ Biostarch H ”, manufactured by Nisse Chemical Co., Ltd.) Using 25 parts by weight of the size liquid as a binder, granulation and drying were performed using a granulating / coating apparatus (“High Speed Mixer”, manufactured by Fukae Kogyo Co., Ltd.).
- the obtained fluorescent coloring particles having a particle diameter of 300 to 100 m were colorless under ordinary light, but developed white when irradiated with ultraviolet light.
- Example 3 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Colorless Under Normal Light and Color Blue by Irradiation with Ultraviolet Light) 100 parts by weight of cornflower was polyethyleneimine [ Cationic binder] (“Epomin P-100”, manufactured by Nippon Shokubai Co., Ltd.) 10 parts by weight of the binder were spray-dried to obtain fine granular starch.
- Cationic binder (“Epomin P-100”, manufactured by Nippon Shokubai Co., Ltd.) 10 parts by weight of the binder were spray-dried to obtain fine granular starch.
- fluorescent pigments E u activated S t 5 (P 0 4) 3 C 1 particles, average particle diameter 0. 8 tz m) 2 0 parts by weight of carboxymethyl starch [Anion material]
- the coating liquid obtained by dispersing 2 parts by weight and 50 parts by weight of water is coated with a fluidized bed using a fluidized bed granulating and coating apparatus ("Flow Coater", manufactured by Freund Sangyo Co., Ltd.) to obtain a particle size. 200 to 500 true spherical fluorescent particles were obtained.
- Example 4 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Colorless Under Normal Light and Color White by Irradiation with Ultraviolet Light) 100 parts by weight of crystalline cellulose (“Avicel”) Zinc oxide [white face Material] 10 parts by weight of hydroxypropyl starch [General binder] (“Biostarch H”) 10% by weight paste liquid 30 parts by weight of binder, granulation and coating Granulated and dried with the equipment (“High Speed Mixer 1”).
- fluorescent pigments Mn activated Z n 2 G e 0 2 particles, an average particle diameter of 1. 0 m) 5 parts by weight, fluorescent pigments (E u activated S t 5 (P ⁇ 4) 3 C 1 particles, average particle diameter 0. 8 / m) 5 parts by weight, fluorescent pigments (E u activated Y 2 0 2 S particles, an average particle diameter of 2.
- Example 5 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Colorless Under Normal Light and Color Red by Irradiation with Ultraviolet Light) 100 parts by weight of flour and calcium carbonate [white pigment] 15 parts by weight of hydroxypropylcellulose [general binder] (“HPC-L”, manufactured by Nippon Soda Co., Ltd.) The fluidized-bed granulation was carried out using a granule-coating device ("New Marmerizer 1", manufactured by Fuji Padal Co., Ltd.).
- the surface of the granules, fluorescent pigments (E u activated Y 2 0 2 S particles, an average particle diameter of 2. 2 m) 2 0 parts by weight of polyamine down-Epikuroruhi drill down based resin [Tree Fat binder ("WS566", manufactured by PCM Japan) 2 parts by weight, dextrin [general binder] 5 parts by weight, 10 parts by weight of 10% by weight sodium hydroxide solution and water 5 parts by weight
- the coating liquid dispersed in 0 parts by weight is subjected to fluidized bed coating by the above-mentioned fluidized bed granulation and coating apparatus, and spherical fluorescent particles having a particle size of 200 to 400 m are obtained. Colored particles were obtained.
- Example 6 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Colorless Under Normal Light and Color Red by Irradiation with Ultraviolet Light) Spherical Fine Granular Starch
- 20 parts by weight of kaolin [white pigment] and 1 part by weight of hydroxypropyl cellulose [general binder] were dispersed in 40 parts by weight of water.
- the coating liquid is sprayed with a centrifugal flow type coating granulator (“Centrifugal flow type coating granulator CF”, manufactured by Freund Sangyo Co., Ltd.) on the fine starch surface.
- a kaolin coating layer was formed.
- the fluorescent pigment E u activated Y 2 0 2 S particles, an average particle diameter of 2. 2 nm 2 0 parts by weight of polyamine down-Epikuro Ruhi drill down based resin [resin binder one ("WS5664") 2 parts by weight, corn starch [powder substance added to coating liquid] 5 parts by weight, 50 parts by weight of water together with 1 part by weight of 10% by weight sodium hydroxide solution
- the dispersed coating liquid was coated with the above-mentioned centrifugal flow type coating granulator to obtain fluorescent coloring particles having a particle diameter of 200 to 400 / m.
- These fluorescent particles are colorless under normal light, but are exposed to ultraviolet light. The color was red.
- FIG. 1 An electron micrograph of the spherical fine-grained starch before forming the force-coated layer is shown in Fig. 1, and after forming a force-coated layer on the surface of the spherical fine-grained starch, it is further placed thereon.
- Fig. 2 shows an electron micrograph of the fluorescent coloring particles on which the coating layer containing the fluorescent pigment was formed.
- Example 7 Production example of fluorescent coloring particles (It is colorless under ordinary light and emits green color by irradiation with ultraviolet light: Production example of three light-coloring particles) 100 parts by weight of corn starch and titanium dioxide [white] Pigment] 15 parts by weight, 30 parts by weight of water, 1 part by weight of sodium alginate [anionic binder] and 1 part by weight of hydroxypropylcellulose [general binder], a glue solution, and polyoxyethylene stearyl ether [Lubricant] 1 part by weight was added and mixed and stirred for 10 minutes. This mixture was extruded into a columnar granule having a diameter of 500 m by an extrusion granulator ("Domanah"). The granulated product was sized in a spherical or cocoon shape having an L / D of 3 or less using a sizing machine (“Malmerizer I”), and then dried.
- Malmerizer I a sizing machine
- the obtained fluorescent coloring particles have a spherical or cocoon shape with a diameter of 500 / m and a length of 500 to 150 m and have excellent opacity, and are colorless under ordinary light. Green color was generated by irradiation with ultraviolet rays.
- Example 8 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Colorless Under Normal Light and Color Red by Irradiation with Ultraviolet Light) 70% by weight of lactose and 30% by weight of crystalline cellulose was granulated by using a centrifugal flow type coating granulator with a particle size of 180 to 300 m (“Nonparenore 105”, manufactured by Freund Inc.). 0 parts by weight, and refined sucrose 65-85% by weight and corn starch 15-35% by weight were granulated using a centrifugal flow-type coating granulator 350-5-5.
- Example 9 Production Example of Fluorescent Coloring Particles (Example of Production of Fluorescent Coloring Particles that are Light Blue Under Normal Light and Color Red by Irradiation with Ultraviolet Light) Spherical Fine Granular Starch (“Graflow M”) 100 20 parts by weight of olefin [white pigment] and hydroxypropylcellulose [general base] The coating liquid in which 1 part by weight and 1 part by weight are dispersed in 40 parts by weight of water is sprayed by a centrifugal flow type coating granulator (“Centrifugal flow type coating granulator CF”). Thus, a force coating layer was formed on the surface of the fine granular starch.
- Spherical Fine Granular Starch (“Graflow M”) 100 20 parts by weight of olefin [white pigment] and hydroxypropylcellulose [general base]
- the coating liquid in which 1 part by weight and 1 part by weight are dispersed in 40 parts by weight of water is sprayed by a centrifugal flow type coating granulator (“
- the fluorescent pigment E u activated Y 2 ⁇ 2 S particles, an average particle diameter of 2. 2 / m
- blue phthalocyanine pigment (trade name ⁇ ⁇ 7 0 0 Bull I GA, manufactured by Dainichi Seika Kogyo Co., Ltd.) 0.6 parts by weight of polyamide epichlorohydrin resin [Resin Binder I] (“WS 564”) 2 parts by weight, corn starch [coating liquid] Powdery substance added to the above]
- the coating liquid dispersed in 50 parts by weight of water together with 5 parts by weight, 1 part by weight of a 10% by weight sodium hydroxide solution, and the above-mentioned centrifugal flow type coating granulation apparatus. Then, fluorescent coloring particles having a particle diameter of 200 to 400 ⁇ m were obtained.
- the fluorescent particles were pale blue under ordinary light, but developed red when irradiated with ultraviolet light.
- Example 10 Production example of fluorescent coloring particles (Example of production of fluorescent coloring particles that are pale red under ordinary light and develop bluish white upon irradiation with ultraviolet light)
- a thionone-based fluorescent dye Min. Epichlorohydrin resin [resin binder] (“WS5664”) 20 parts by weight, dextrin [general binder] 50 parts by weight, red inorganic coloring pigment (product Name “TB_200Red GY”, manufactured by Dainichi Seika Kogyo Co., Ltd.)
- Example 11 Example of production of fluorescent coloring particles (Example of production of fluorescent coloring particles that are pale red under ordinary light and emit red when irradiated with ultraviolet light)
- a fluorescent dye (rhodamine: trade name “Ryakururi Rhodamine BL-ED”, manufactured by Nippon Kayaku Co., Ltd.) is produced on the surface of this granulated product.
- the coating liquid dispersed in 500 parts by weight of water together with 10 parts by weight of the sodium hydroxide solution is coated with a fluidized bed by the above-mentioned fluidized bed granulation / coating apparatus.
- Spherical fluorescent particles having a particle diameter of 200 to 400 m were obtained. These fluorescent coloring particles were pale red under ordinary light, but developed red when irradiated with ultraviolet light.
- Example 12 Production example of fluorescent coloring particles (Example of producing fluorescent coloring particles which are white under ordinary light, develop blue color upon irradiation with ultraviolet light, and elute a red dye due to organic solvent)
- the fluorescent particles were white under ordinary light, but developed a bluish-white color when irradiated with ultraviolet light. When the acetone was added dropwise, a red dye was eluted from the particles. 5 parts by weight of the fluorescent particles were dispersed in 100 parts by weight of water and stirred at a rotation speed of 300 rpm for 10 minutes, but did not collapse.
- Example 13 Example of manufacturing forgery prevention paper 20 parts by weight of NB KP and 80 parts by weight of LBKP were beaten to 250 m IC.S.F., and 10 parts by weight of clay, a paper strength agent (trade name "Polystron 191,” Arakawa Chemical Industry Co., Ltd.) 0.3 parts by weight, sizing agent (trade name "Size Pine E", Arakawa Chemical Industry Co., Ltd.) 1.0 parts by weight, appropriate amount of band sulfate was added to prepare stock. .
- a paper strength agent trade name "Polystron 191,” Arakawa Chemical Industry Co., Ltd.
- sizing agent trade name "Size Pine E", Arakawa Chemical Industry Co., Ltd.
- Example 1 The fluorescent particles obtained in Example 1 in this stock was added to a 0.5 wt% with respect to the paper, the basis weight 1 using Fourdrinier 0 0 g / ⁇ 2 was manufactured by a conventional method. After passing through the drying zone of the paper machine, the machine was rendered using a machine. However, even if the paper surface was touched by hand, the presence of fluorescent particles could not be detected.
- the part containing the fluorescent particles was seen to be partially transparent under normal light, and the particles that emitted green fluorescent light were visible by irradiating ultraviolet rays. .
- Example 14 Example of manufacturing forgery prevention paper
- the fluorescent coloring particles (sieving) obtained in Example 2 were applied to the paper web formed on the papermaking network. Sieved to a particle size of 300-800 m The paper was sprinkled over the entire surface so as to be 0.5% by weight with respect to the paper to form anti-counterfeit paper. Drying zone machine calendering treated Toko filtration after passage, c the resulting anti-falsification paper was unable to sense the presence of the fluorescent particles to touch the surface of the paper by hand in the paper machine, under normal light fluorescent The particles could not be visually recognized, and the particles emitting white fluorescent color by irradiating ultraviolet rays could be visually recognized.
- Example 15 Example of manufacturing forgery prevention paper
- Example 2 0.5% by weight of the paper material containing the fluorescent coloring particles obtained in Example 2 (the one having a particle size of 800 to 100 m sieved with a sieving machine) was used. Then, anti-counterfeit paper having a basis weight of 100 gZm 2 was produced by a conventional method using a fourdrinier paper machine. After passing through the drying zone of the paper machine, the machine was calendered.
- the light-colored particles are not visible under normal light, but the spots where the particles are present are slightly raised, and the spots become transparent and observed. Particles that emit white fluorescent color are clearly visible, 7
- Example 16 Example of manufacturing forgery prevention paper
- the part containing the fluorescent particles appeared to be partially transparent under normal light, and the particles emitting blue fluorescent light were visible by irradiating ultraviolet rays. .
- Example 17 Example of manufacturing forgery prevention paper
- Kaolin (trade name “UW90”, manufactured by Engelhard Co., Ltd.) 50 parts by weight, calcium carbonate (trade name “Tamapearl TP22H”, Okutama Kogyo
- Example 4 14 parts by weight of the coating liquid were mixed with the fluorescent coloring particles obtained in Example 4 (sieved to a particle size of 300 to 800 // m by a sieving machine).
- the 0.1 was mixed% by weight relative to the coating liquid, using a curtain flow co Isseki one was applied such that 1 5 g / m 2 on the surface of the base paper, and then the super one Callen Zehnder process To produce anti-counterfeit paper. The presence of the fluorescent particles could not be detected by touching the surface of the obtained paper with the hand.
- Example 18 Example of manufacturing forgery prevention paper
- the coating solution composed of styrene / butadiene copolymer latex (trade name “Dipole LX407C”) was coated with the fluorescent coloring particles obtained in Example 4 (sieved to a particle size of 800 to 1 000 by a sieving machine).
- Manufactured anti-counterfeit paper Manufactured anti-counterfeit paper.
- Example 19 Example of manufacturing forgery prevention paper
- Example 20 Example of manufacturing forgery prevention paper
- Example 22 Example of manufacturing forgery prevention paper
- NBKP and 80 parts by weight of LBKP were beaten to 250 m1 SF, and 10 parts by weight of clay, paper strength agent (Polystron 1991) 0.3 parts by weight, sizing agent (product name) “Size pine E”) 1.0 parts by weight and an appropriate amount of sulfate band were added to prepare a stock.
- the fluorescent particles obtained in Example 12 were added in an amount of 0.5% by weight based on the paper, and the basis weight was 100 g / m 2 using a fourdrinier paper machine.
- the basis weight was 100 g / m 2 using a fourdrinier paper machine.
- the machine was rendered using a machine.
- the presence of fluorescent particles could not be detected even by tracing the paper surface by hand.
- the fluorescent particles were not visible under ordinary light, but the particles emitting blue fluorescent color were clearly visible by irradiating ultraviolet rays.
- the fluorescent coloring particles of the present invention can maintain the particle shape without dissolving even at a high temperature such as in a drying zone of a paper machine, for example, when these particles are mixed in paper, specific particles can be irradiated with ultraviolet rays. Particles having a unique shape that develops a hue can be visually recognized, and can be suitably used for anti-counterfeit paper.
- fluorescent particles using a powdery substance having a hydroxyl group at the end as a powdery substance are incorporated into paper, hydrogen bonding between the cellulose fibers, the main component of the paper, and the hydroxyl groups of the powdery substance Is generated, and the fluorescent particles are fixed in the paper. This has the advantage that the fluorescent particles do not fall off during the subsequent printing process.
- the specific gravity of inorganic fluorescent pigments is as large as about 4 to 5, so the pigment tends to precipitate during the flow of the slurry containing the pigment.
- the fluorescent coloring particles obtained by the present invention have a specific gravity in the range of 1.2 to 1.8, and particles having a particle size of 50 m or more can be easily obtained. Can be.
- Fluorescent coloring particles having excellent water resistance can be obtained by using a substance having a hydroxyl group as a powdery substance and using a resin having a reactive group that reacts with the hydroxyl group as a binder. Furthermore, fluorescent color particles having excellent water resistance can be obtained by utilizing the interaction between an anionic binder and a cationic substance or a cationic binder and a cationic substance.
- the opacity of the particles can be increased by using a white pigment as a component of the fluorescent particles.
- a white pigment as a component of the fluorescent particles.
- a colorant can be used together with the fluorescent coloring particles during production, or the fluorescent coloring particles can be colored and included in the paper.
- particles that are colored in a specific hue can be visually recognized under ordinary light, and the particles can be colored in a different hue by irradiating ultraviolet rays. Can be manufactured. Further, by using a colorant as a dropout color in optical reading, forgery prevention paper suitable for OCR reading and 0MR reading can be manufactured.
- Water-insoluble and organic solvent-soluble fluorescent dyes and fluorescent pigments are used as the fluorescent agent in the present invention to produce fluorescent coloring particles.
- traces of the fluorescent agent soluble in the organic solvent eluted from the fluorescent coloring particles and diffused to the surroundings can be visually recognized by ultraviolet irradiation.
- the anti-counterfeit paper of the present invention can be suitably used for anti-counterfeit printed matter which is easily falsified.
- the anti-counterfeit paper of the present invention can be suitably used for anti-counterfeit printed matter which is easily falsified.
- the fluorescent coloring particles of the present invention having a structure in which a coating layer containing a fluorescent agent is formed on the surface of a granulated material containing a powdered substance, a dye insoluble in water and soluble in an organic solvent is granulated together with the powdered substance.
- fluorescent coloring particles are contained in the granulated material. Since the color of the organic solvent-soluble dye is concealed by the coating layer, if these particles are included in paper and then printed to produce anti-counterfeit prints, under normal light, fluorescent coloring particles Since the presence is difficult to visually recognize, it is difficult to determine that the forgery prevention means has been taken, and the forgery prevention effect can be further enhanced. Furthermore, when falsification is attempted using an organic solvent, traces of the organic solvent-soluble dye eluted from the granulated material, which is the core of the fluorescent coloring particles, and diffused to the surroundings can be visually observed. The presence or absence of tampering can be reliably recognized.
- the fluorescent coloring particles of the present invention have a characteristic in fashionability by being added at the time of manufacturing a nonwoven fabric or at the time of manufacturing a twisted yarn, etc., utilizing the above-described characteristics. Nonwoven and woven fabrics can be manufactured.
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2320745 CA2320745C (en) | 1998-12-25 | 1999-12-22 | Fluorescent particle,method for preparing the same and paper for preventing forgery using the fluorescent particle |
US09/622,864 US6663960B1 (en) | 1998-12-25 | 1999-12-22 | Fluorescent particles, method for preparing the same and paper preventing forgery using the fluorescent particle |
DE1999627681 DE69927681T2 (de) | 1998-12-25 | 1999-12-22 | Fluoreszierende körnchen, verfahren zur herstellung und verwendung in fälschungssicheren papieren |
KR1020007009466A KR100566750B1 (ko) | 1998-12-25 | 1999-12-22 | 형광 발색 입자, 그 제조 방법 및 형광 발색 입자를사용한 위조 방지 용지 |
EP99961310A EP1074599B8 (en) | 1998-12-25 | 1999-12-22 | Fluorescent granules, method for preparing the same and paper for preventing forgery using the fluorescent granules |
HK01107232A HK1036468A1 (en) | 1998-12-25 | 2001-10-16 | Fluorescent particle, method for preparing the same and paper for preventing forgery using the fluorescent particle |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP10/369959 | 1998-12-25 | ||
JP36995998 | 1998-12-25 | ||
JP11/142329 | 1999-05-21 | ||
JP14232999 | 1999-05-21 | ||
JP34723799A JP3978961B2 (ja) | 1998-12-25 | 1999-12-07 | 偽造防止用紙に使用する蛍光発色粒子、その製造方法、及び蛍光発色粒子を使用した偽造防止用紙 |
JP11/347237 | 1999-12-07 |
Publications (1)
Publication Number | Publication Date |
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WO2000039246A1 true WO2000039246A1 (fr) | 2000-07-06 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1999/007208 WO2000039246A1 (fr) | 1998-12-25 | 1999-12-22 | Particules fluorescentes, leur procedes de preparation et papier anti-falsification utilisant ces particules fluorescentes |
Country Status (9)
Country | Link |
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US (1) | US6663960B1 (ja) |
EP (1) | EP1074599B8 (ja) |
JP (1) | JP3978961B2 (ja) |
KR (1) | KR100566750B1 (ja) |
CN (1) | CN1250673C (ja) |
CA (1) | CA2320745C (ja) |
DE (1) | DE69927681T2 (ja) |
HK (1) | HK1036468A1 (ja) |
WO (1) | WO2000039246A1 (ja) |
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- 1999-12-07 JP JP34723799A patent/JP3978961B2/ja not_active Expired - Fee Related
- 1999-12-22 KR KR1020007009466A patent/KR100566750B1/ko not_active IP Right Cessation
- 1999-12-22 CN CNB998054704A patent/CN1250673C/zh not_active Expired - Fee Related
- 1999-12-22 WO PCT/JP1999/007208 patent/WO2000039246A1/ja active IP Right Grant
- 1999-12-22 US US09/622,864 patent/US6663960B1/en not_active Expired - Lifetime
- 1999-12-22 EP EP99961310A patent/EP1074599B8/en not_active Expired - Lifetime
- 1999-12-22 CA CA 2320745 patent/CA2320745C/en not_active Expired - Fee Related
- 1999-12-22 DE DE1999627681 patent/DE69927681T2/de not_active Expired - Lifetime
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2001
- 2001-10-16 HK HK01107232A patent/HK1036468A1/xx not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
US6663960B1 (en) | 2003-12-16 |
DE69927681D1 (de) | 2006-02-23 |
CN1250673C (zh) | 2006-04-12 |
KR100566750B1 (ko) | 2006-04-03 |
EP1074599A4 (en) | 2001-10-17 |
HK1036468A1 (en) | 2002-01-04 |
CA2320745A1 (en) | 2000-07-06 |
CN1302321A (zh) | 2001-07-04 |
EP1074599B1 (en) | 2005-10-12 |
CA2320745C (en) | 2009-02-17 |
JP3978961B2 (ja) | 2007-09-19 |
DE69927681T2 (de) | 2006-07-20 |
EP1074599B8 (en) | 2006-01-25 |
KR20010041352A (ko) | 2001-05-15 |
EP1074599A1 (en) | 2001-02-07 |
JP2001040343A (ja) | 2001-02-13 |
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