WO2010089982A1 - リライタブル記録材料 - Google Patents
リライタブル記録材料 Download PDFInfo
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- WO2010089982A1 WO2010089982A1 PCT/JP2010/000570 JP2010000570W WO2010089982A1 WO 2010089982 A1 WO2010089982 A1 WO 2010089982A1 JP 2010000570 W JP2010000570 W JP 2010000570W WO 2010089982 A1 WO2010089982 A1 WO 2010089982A1
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- recording material
- methyl
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- 0 *Cc1cccc(*)c1 Chemical compound *Cc1cccc(*)c1 0.000 description 3
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
- B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/337—Additives; Binders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/305—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers with reversible electron-donor electron-acceptor compositions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/16—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
- C07C233/24—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
- C07C233/29—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to an acyclic carbon atom of a carbon skeleton containing six-membered aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
- C07C235/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
- C07C235/32—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings
- C07C235/38—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a six-membered aromatic ring
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0077—Preparations with possibly reduced vat, sulfur or indigo dyes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/28—Storage stability; Improved self life
Definitions
- the present invention relates to a rewritable recording material capable of forming and erasing a color image.
- Recording materials that utilize the color developed by the reaction between the color-forming dye and the developer can be recorded in a relatively simple device in a short time without complicated processing such as development and fixing. Widely used in heat-sensitive recording paper and so on.
- rewritable recording materials capable of forming and erasing a color-development image of a color-development layer thermoreversibly have been proposed.
- the rewritable recording material when the temperature of the composition in the decolored state is first raised, color develops at a specific temperature and becomes a colored state. When rapidly cooled from the colored state, the colored state can be lowered to room temperature and the colored state is fixed. On the other hand, when the color is gradually cooled from the colored state, decoloring occurs in the process of lowering the temperature, and the same decolored state as the beginning or a relatively decolored state is formed.
- Non-Patent Document 1 a developer mainly containing a long-chain aliphatic hydrocarbon group. These compounds are capable of erasing images by forming intermolecular interactions due to long-chain aliphatic hydrocarbon groups.
- Patent Documents 5 to 7 compounds that do not contain a long-chain aliphatic hydrocarbon group have been proposed as color developers used in rewritable recording materials.
- Patent Documents 5 to 7 compounds that do not contain a long-chain aliphatic hydrocarbon group have been proposed as color developers used in rewritable recording materials.
- rewritable recording materials using these materials still have problems in terms of compatibility between color developability and decolorability, or stability such as color density and repetition, and are not practical recording materials.
- An object of the present invention is to provide a rewritable recording material that can repeat color development and decoloring stably over a long period of time and has excellent heat resistance of a color image as compared with a conventional rewritable recording material, and a coloring layer of such a recording material.
- An object of the present invention is to provide a rewritable color forming layer forming composition and a rewritable recording material developer composition.
- the decoloring of the image in the rewritable recording material is due to the fact that the developer compound is crystallized by reheating the colored portion and phase-separated from the colored dye.
- the present inventors have demonstrated that crystallization and phase separation are effectively performed and a rewritable function is exhibited, and further, a conventional rewritable developer is used. As a result, the present inventors have found that the color image has excellent heat resistance as compared with the recording material, and completed the present invention.
- the present invention relates to (1) a rewritable recording material provided with a color developing layer on a substrate, wherein the color developing layer comprises a color developing dye and the formula (I)
- R 1 and R 4 each independently represents a hydrogen atom, a hydroxyl group, a nitro group, a halogen atom, a C 1 -C 6 alkyl group or a C 1 -C 6 alkoxy group, and p is 0 or 1 to 4 represents an integer of 4, q represents an integer of 0 or 1 to 5, and when p and q are 2 or more, R 1 and R 4 may be the same or different from each other Good.
- R 2 and R 3 each independently represent a hydrogen atom or a C 1 -C 6 alkyl group
- R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, an optionally substituted phenyl group or a substituted Represents an optionally substituted benzyl group.
- a rewritable recording material comprising (2) the substrate is paper, a synthetic resin film, or a synthetic resin sheet. The rewritable recording material according to 1).
- R 1 and R 4 each independently represents a hydrogen atom, a hydroxyl group, a nitro group, a halogen atom, a C 1 -C 6 alkyl group or a C 1 -C 6 alkoxy group, and p is 0 or 1 to 4 represents an integer of 4, q represents an integer of 0 or 1 to 5, and when p and q are 2 or more, R 1 and R 4 may be the same or different from each other Good.
- R 2 and R 3 each independently represent a hydrogen atom or a C 1 -C 6 alkyl group
- R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, an optionally substituted phenyl group or a substituted Represents an optionally substituted benzyl group.
- At least one of the phenolic compounds represented by formula (I), a composition for forming a rewritable color-forming layer, (4) a color-forming dye, and at least a phenolic compound represented by formula (I) The composition for forming a rewritable color forming layer as described in (3) above, which contains one kind.
- R 1 and R 4 each independently represents a hydrogen atom, a hydroxyl group, a nitro group, a halogen atom, a C 1 -C 6 alkyl group or a C 1 -C 6 alkoxy group, and p is 0 or 1 to 4 represents an integer of 4, q represents an integer of 0 or 1 to 5, and when p and q are 2 or more, R 1 and R 4 may be the same or different from each other Good.
- R 2 and R 3 each independently represent a hydrogen atom or a C 1 -C 6 alkyl group
- R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, an optionally substituted phenyl group or a substituted Represents an optionally substituted benzyl group.
- a developer composition for rewritable recording materials comprising at least one phenolic compound represented by the formula:
- coloring and decoloring can be stably repeated over a long period of time, and excellent in preservability such as heat resistance of color images, heat and humidity resistance, and light resistance of the background as compared with conventional rewritable recording materials.
- a rewritable recording material, a rewritable color forming layer forming composition capable of forming a color forming layer of the recording material, and a developer composition for rewritable recording material can be provided.
- the rewritable recording material of the present invention is a recording material provided with a coloring layer on a substrate, wherein the coloring layer comprises a coloring dye and the formula (I)
- R 1 and R 4 each independently represents a hydrogen atom, a hydroxyl group, a nitro group, a halogen atom, a C 1 -C 6 alkyl group or a C 1 -C 6 alkoxy group, and p is 0 or 1 to 4 represents an integer of 4, q represents an integer of 0 or 1 to 5, and when p and q are 2 or more, R 1 and R 4 may be the same or different from each other Good.
- R 2 and R 3 each independently represent a hydrogen atom or a C 1 -C 6 alkyl group
- R 5 represents a hydrogen atom, a C 1 -C 6 alkyl group, an optionally substituted phenyl group or a substituted Represents an optionally substituted benzyl group.
- the coloring layer in the present invention is not particularly limited as long as it is a layer containing a coloring dye and a developer, and a layer in which the coloring dye and the developer are present in a mixed state, or coloring.
- a plurality of layers may be included in which the functional dye and the developer are contained in separate layers.
- the rewritable recording material of the present invention can stably repeat color development and decoloration over a long period of time, and is superior in storage stability of color images, particularly heat resistance, as compared with conventional rewritable recording materials.
- the compound represented by the formula (I) has a geometric isomer as shown below, and only one isomer can be obtained depending on the reaction conditions and the purification method, or the isomer It may be obtained as a mixture. All of these isomers are included in the scope of the present invention.
- R 1 and R 4 each independently represent a hydrogen atom, a hydroxyl group, a nitro group, a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a methyl group, an ethyl group, or n- Propyl group, isopropyl group, n-butyl group, sec-butyl group, t-butyl group, n-pentyl group, isopentyl group, neopentyl group, t-pentyl group, n-hexyl group, isohexyl group, 1-methylpentyl group C 1 -C 6 alkyl group such as 1,2-methylpentyl group, preferably C 1 -C 4 alkyl group, methoxy group,
- R 2 and R 3 are each independently a hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, t-butyl group, n-pentyl group, isopentyl group A C 1 -C 6 alkyl group, preferably a C 1 -C 4 alkyl group such as a group, neopentyl group, t-pentyl group, n-hexyl group, isohexyl group, 1-methylpentyl group, 2-methylpentyl group, etc.
- R 2 and R 3 are particularly preferably a hydrogen atom or a methyl group.
- R 5 includes hydrogen atom, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, t-butyl group, n-pentyl group, isopentyl group, neopentyl group, t- C 1 -C 6 alkyl group such as pentyl group, n-hexyl group, isohexyl group, 1-methylpentyl group, 2-methylpentyl group, etc., preferably C 1 -C 4 alkyl group, optionally substituted phenyl group , An optionally substituted benzyl group can be exemplified, and R 5 is particularly preferably a hydrogen atom.
- substituents examples include a hydroxyl group, a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, and a t-butyl group.
- C 1 -C 6 alkyl groups such as butyl group, n-pentyl group, isopentyl group, neopentyl group, t-pentyl group, n-hexyl group, isohexyl group, 1-methylpentyl group, 2-methylpentyl group, methoxy group C 1 -C 6 alkoxy groups such as ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, sec-butoxy group, t-butoxy group and the like.
- an image stabilizer In the rewritable recording material of the present invention, an image stabilizer, a sensitizer, a filler, a dispersant, an antioxidant, a desensitizer, an adhesive, in addition to the compound represented by the above formula (I) and the color-forming dye.
- One or more kinds of inhibitors, antifoaming agents, light stabilizers, fluorescent brightening agents and the like can be contained as necessary.
- the amount of each used is usually in the range of 0.1 to 15 parts by weight, preferably 1 to 10 parts by weight, based on 1 part by weight of the chromogenic dye.
- these chemicals may be contained in the coloring layer, but in the case of a multilayer structure, for example, they may be contained in an arbitrary layer such as a protective layer.
- these layers can contain an antioxidant, a light stabilizer and the like.
- an antioxidant and a light stabilizer can be contained in these layers in the form of microcapsules if necessary.
- chromophoric dye in the rewritable recording material of the present invention examples include, but are not limited to, leuco dyes such as fluorane, phthalide, lactam, triphenylmethane, phenothiazine, and spiropyran. Any color developing dye that develops color by contact with a developer that is an acidic substance can be used. In addition, these color-forming dyes are used alone to produce a recording material having the color to be developed, but two or more of them can be used in combination. For example, it is possible to produce a recording material that develops true black color by mixing red, blue, and green primary color developing dyes or black coloring dyes.
- leuco dyes such as fluorane, phthalide, lactam, triphenylmethane, phenothiazine, and spiropyran.
- Any color developing dye that develops color by contact with a developer that is an acidic substance can be used.
- these color-forming dyes are used alone to
- chromogenic dyes for example, 3-diethylamino-6-methyl-7-anilinofluorane, 3-di (n-butyl) amino-6-methyl-7-anilinofluorane, 3- (N-methyl-N-cyclohexylamino) -6-methyl-7-anilinofluorane, 3- (N-ethyl-N-isobutylamino) -6-methyl-7-anilinofluorane, 3- (N -Methyl-N-propylamino) -6-methyl-7-anilinofluorane, 3- (N-ethyl-N-isoamylamino) -6-methyl-7-anilinofluorane, 3- (N-ethyl) -P-toluidino) -6-methyl-7-anilinofluorane, 3-diethylamino-7- (m-trifluoromethylanilino) fluorane, 3-di (n-
- the black dye is preferably 3-diethylamino-6-methyl-7-anilinofluorane, 3-di (n-butyl) amino-6-methyl-7-anilinofluorane, 3- (N-methyl-N -Cyclohexylamino) -6-methyl-7-anilinofluorane, 3- (N-methyl-N-propylamino) -6-methyl-7-anilinofluorane, 3- (N-ethyl-N-isoamyl) Amino) -6-methyl-7-anilinofluorane, 3- (N-ethyl-p-toluidino) -6-methyl-7-anilinofluorane, 3-diethylamino-7- (m-trifluoromethylaniline) Lino) fluorane, 3-di (n-pentyl) amino-6-methyl-7-anilinofluorane, 3- (N-ethyl-N-ethoxypropylamin
- blue, green, red and yellow are 3,3-bis (p-dimethylaminophenyl) -6-dimethylaminophthalide, 3- (4-diethylamino-2-ethoxyphenyl) -3- (1-ethyl-2-methyl-3-indolyl) -4-azaphthalide, 3- (4-diethylamino-2-ethoxyphenyl) -3- (1-octyl-2-methyl-3-indolyl) -4-azaphthalide 3-diethylamino-7-dibenzylaminofluorane, 3- (N-ethyl-p-tolyl) amino-7-N-methylanilinofluorane, 3,3-bis (4-diethylamino-2-ethoxyphenyl) ) -4-Azaphthalide, 3,6,6′-tris (dimethylamino) spiro [fluorene-9,3′-phthalide], 3-diethylamino-7-chlor
- Examples of the image storage stabilizer that can be used in combination with the composition of the present invention include the following. These may be used alone or in combination of two or more as required. 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, 1,1,3-tris (2-methyl-4-hydroxy-5-t-cyclohexylphenyl) butane, 4,4'-butylidenebis (6-t-butyl-3-methylphenol), 2,2'-methylenebis (6-t-butyl-4-methylphenol), 2,2'-methylenebis (6-t-butyl) -4-ethylphenol), 4,4'-thiobis (6-tert-butyl-3-methylphenol), 1,3,5-tris (2,6-dimethyl-4-tert-butyl-3-hydroxybenzyl) ) Isocyanurate, 1,3,5-tris [[3,5-bis (1,1-dimethylethyl) -4-hydroxyphenyl] methyl]
- 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, 1,1,3-tris (2-methyl-4-hydroxy-5-t-cyclohexylphenyl) ) Butane, 4,4′-butylidenebis (6-tert-butyl-3-methylphenol), 2,2′-methylenebis (4-ethyl-6-tert-butylphenol), 1,3,5-tris (2, 6-dimethyl-4-tert-butyl-3-hydroxybenzyl) isocyanurate, 2-methyl-2-[[4-[[4- (phenylmethoxy) phenyl] sulfonyl] phenoxy] methyl] -oxirane, 4,4 Examples thereof include '-sulfonylbis (2,6-dibromophenol) and 2- (2'-hydroxy-5'-methylphenyl) benzotriazole.
- a sensitizer such as stearamide, benzamide, stearic acid anilide, acetoacetanilide, thioacetanilide, dibenzyl oxalate, di (4-methylbenzyl) oxalate, di (4-chlorobenzyl) oxalate, dimethyl phthalate, Dimethyl terephthalate, dibenzyl terephthalate, dibenzyl isophthalate, bis (tert-butylphenol), 4,4′-dimethoxydiphenylsulfone, 4,4′-diethoxydiphenylsulfone, 4,4′-dipropoxydiphenylsulfone, 4, 4′-diisopropoxydiphenylsulfone, 4,4′-dibutoxydiphenylsulfone, 4,4′-diisobutoxydip
- the filler examples include silica, clay, kaolin, calcined kaolin, talc, satin white, aluminum hydroxide, calcium carbonate, magnesium carbonate, zinc oxide, titanium oxide, barium sulfate, magnesium silicate, aluminum silicate, and plastic pigment. be able to.
- salts of alkaline earth metals, particularly carbonates such as calcium carbonate and magnesium carbonate can be preferably exemplified.
- the filler is used in an amount of 0.1 to 15 parts by weight, preferably 1 to 10 parts by weight, based on 1 part by weight of the coloring dye. It is also possible to use a mixture of the above fillers.
- dispersant examples include polyvinyl alcohol, acetoacetylated polyvinyl alcohol, carboxy-modified polyvinyl alcohol, sulfonic acid-modified polyvinyl alcohol, and other various saponification degrees, polymerization degrees of polyvinyl alcohol, polyacrylic acid soda, methylcellulose, and carboxymethylcellulose.
- sulfoethyl succinates such as hydroxyethyl cellulose, polyacrylamide, starch, dioctyl sodium sulfosuccinate, sodium dodecylbenzenesulfonate, sodium lauryl alcohol sulfate, fatty acid salts, and the like.
- Antioxidants include 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-ethyl-6-tert-butylphenol), 4,4'-propylmethylenebis (3-methyl-6-tert-butylphenol), 4,4′-butylidenebis (3-methyl-6-tert-butylphenol), 4,4′-thiobis (2-tert-butyl-5-methylphenol), 1, 1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenol) butane, 4- [4- ⁇ 1,1-bis (4-hydroxyphenyl) ethyl ⁇ - ⁇ , ⁇ '-dimethylbenzyl] Phenol, 1,1,3-tris (2-methyl-4-hydroxy-5-cyclohexylphenyl) butane, 2,2'-methylene Bis (6-tert-butyl-4-methylphenol), 2,2′-methylenebis (6-tert-butyl-4-ethylphenol), 4,
- desensitizer examples include aliphatic higher alcohols, polyethylene glycol, guanidine derivatives and the like.
- anti-sticking agent examples include stearic acid, zinc stearate, calcium stearate, carnauba wax, paraffin wax, ester wax and the like.
- antifoaming agent examples include higher alcohols, fatty acid esters, oils, silicones, polyethers, modified hydrocarbons, and paraffins.
- the light stabilizer examples include salicylic acid UV absorbers such as phenyl salicylate, p-tert-butylphenyl salicylate, p-octylphenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy- 4-benzyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-methoxy Benzophenone ultraviolet absorbers such as -5-sulfobenzophenone and bis (2-methoxy-4-hydroxy-5-benzoylphenyl) methane, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- 2′-hydroxy-5′-tert-butylphenyl) benzotriazole, 2- (2′-hydroxy-3 ′, 5′-di-
- fluorescent dyes examples include 4,4′-bis [2-anilino-4- (hydroxyethyl) amino-1,3,5-triazinyl-6-amino] stilbene-2,2′-disulfonic acid disodium salt, 4 , 4′-bis [2-anilino-4-bis (hydroxyethyl) amino-1,3,5-triazinyl-6-amino] stilbene-2,2′-disulfonic acid disodium salt, 4,4′-bis [2-Methoxy-4- (hydroxyethyl) amino-1,3,5-triazinyl-6-amino] stilbene-2,2′-disulfonic acid disodium salt, 4,4′-bis [2-anilino-4 -(Hydroxypropyl) amino-1,3,5-triazinyl-6-amino] stilbene-2,2'-disulfonic acid disodium salt, 4,4'-bis [2-m-sulfoanilino- -Bis (
- the substrate in the rewritable recording material of the present invention is preferably a substrate that can be used repeatedly.
- Examples thereof include paper, synthetic paper, synthetic resin film, synthetic resin sheet, nonwoven fabric, recycled paper such as waste paper pulp, and the like.
- a synthetic resin film and a synthetic resin sheet are particularly preferable because they hardly deteriorate and can be used continuously over a long period of time.
- Examples of synthetic resin films and synthetic resin sheets include polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate. And films or sheets of polymethyl methacrylate, polymethyl acrylate, polyethyl methacrylate, polystyrene, cellulose triacetate, cellophane, polycarbonate and the like.
- the rewritable color forming layer forming composition of the present invention is not particularly limited as long as it contains a color forming dye and a phenolic compound represented by the formula (I). It may be a mixture of phenolic compounds represented by (I), or a combination (separate) of a composition containing a chromogenic dye and a phenolic compound represented by formula (I) separately. There may be.
- the rewritable color layer forming composition of the present invention includes a color developing dye, an image stabilizer, a sensitizer, a filler, a dispersant, an antioxidant, a reducing agent.
- a sensitizer, an anti-adhesive agent, an antifoaming agent, a light stabilizer, a fluorescent brightening agent, and the like can be contained alone or in combination as required. These details are as described above.
- a known developer for a rewritable recording material can be used in combination.
- Examples of the developer that can be used in combination include the following.
- Patent Document 4 Compound described in JP-A-2005-1127
- Patent Document 1 Compound described in JP-A-8-301838)
- Patent Document 2 Compound described in JP-A-9-295458
- Patent Document 3 Compound described in JP-A-10-67726)
- each of fine particles of a chromophoric dye and a compound represented by formula (I) can be made of polyvinyl alcohol or It can be produced by dispersing it in an aqueous solution of a water-soluble binder such as cellulose, mixing each of them, coating on a substrate and drying. Moreover, it can also manufacture by apply
- the use ratio of the compound represented by the formula (I) is, for example, 0.1 to 15 parts by weight, preferably 1 to 10 parts by weight, more preferably 1.5 to 1 part by weight of the chromogenic dye. Is 5 parts by mass.
- the recording material In order to form a color image using the rewritable recording material of the present invention, it is only necessary to rapidly cool the color image once it is heated to a color temperature or higher. Specifically, for example, when the recording material is heated for a short time with a thermal head or laser light, the recording material is locally heated, so that the heat is immediately diffused and abrupt cooling occurs, so that the colored state can be fixed. On the other hand, in order to erase the color, it may be heated to a color development temperature or higher using an appropriate heat source and gradually cooled, or may be temporarily heated to a temperature slightly lower than the color development temperature. When heated for a long time, the temperature of a wide range of the recording material is raised and gradually cooled after the heating is interrupted.
- a heating bar, a heat roller, a heat stamp, hot air, or the like can be used as a heating method.
- heating can be performed for a long time using a thermal head, or heating elements can be heated all at once and the entire width can be heated. Good.
- the applied energy may be lowered slightly from the time of recording by adjusting the voltage applied to the thermal head and the pulse width. If this method is used, recording / erasing can be performed only by the thermal head, and so-called rewrite becomes possible. Of course, it can be erased by heating to a decoloring temperature range with a heating bar, hot roller, hot stamp, hot air or the like.
- Example 1 (Preparation of thermal paper)
- a mixture of each of the A to D liquid components is sufficiently ground with a sand grinder to prepare a dispersion of each component of the A to D liquids.
- a liquid 1 part by mass, B liquid 2 parts by mass, C liquid 1 part by mass and 4 parts by mass of D liquid were mixed to prepare a coating liquid.
- This coating solution was applied to a white paper using a wire rod (Webster, wire bar No. 12) and dried, and then subjected to a calendering process to produce a thermal paper (the coating amount was about dry weight). 5.5 g / m 2 ).
- Example 2 A thermal paper was prepared by the method described in Example 1 except that 1 part by mass of the following E liquid was used instead of 1 part by mass of B liquid in Example 1.
- E liquid Developer dispersion (E liquid) Compound No. 82 16 parts Polyvinyl alcohol 10% aqueous solution 84 parts
- Thermal paper was produced by the method described in Example 1 except that 1 part by mass of the following H liquid was used instead of 1 part by mass of B liquid in Example 1.
- H Developer dispersion
- liquid H 4-hydroxy-4'-isopropoxydiphenylsulfone 16 parts polyvinyl alcohol 10% aqueous solution 84 parts
- Example 3 Thermal paper was produced by the method described in Example 1 except that 0.5 part by mass of B liquid and 0.5 part by mass of G liquid were used instead of 1 part by mass of B liquid in Example 1.
- Example 4 A thermal paper was prepared by the method described in Example 1 except that 0.5 parts by mass of F liquid and 0.5 parts by mass of G liquid were used instead of 1 part by mass of B liquid in Example 1.
- Example 5 A thermal paper was prepared by the method described in Example 1 except that 0.5 parts by mass of F liquid and 0.5 parts by mass of H liquid were used instead of 1 part by mass of B liquid in Example 1.
- Thermal paper was produced by the method described in Example 1 except that 0.5 part by mass of G liquid and 0.5 part by mass of H liquid were used instead of 1 part by mass of B liquid in Example 1.
- Test 1 The thermal paper produced in Examples 1 to 3 and Comparative Examples 1 to 6 was subjected to saturated color development under the condition of 0.72 mj per dot using a thermal paper coloring device (TH-PMH type manufactured by Okura Electric). The obtained image density was measured with a Macbeth reflection densitometer (manufactured by Macbeth, model number: RD-918, filter used: # 106). The results are shown in Table 2.
- Test 2 The image portion obtained in Test 1 was heated at 120 ° C. for 5 seconds using a heat stamp, and then measured with a Macbeth reflection densitometer (filter used: # 106). The results are shown in Table 2.
- Test 3 The sample of Test 2 was again recolored under the condition of 0.72 mj per dot using a thermal paper coloring test device (TH-PMH type, manufactured by Okura Electric Co., Ltd.). The resulting image density was measured with a Macbeth reflection densitometer (filter used: # 106). The results are shown in Table 2.
- Test 4 Image heat resistance
- a thermostat trade name: DK-400, manufactured by YAMATO
- the optical density of the image after holding was measured with a Macbeth reflection densitometer (used filter: # 106). The results are shown in Table 2.
- Test 5 Image moisture and heat resistance
- THN050FA low-temperature constant temperature and humidity chamber
- ADVANTEC optical density of the image after holding was measured with a Macbeth reflection densitometer (used filter: # 106). The results are shown in Table 2.
- Test 6 background light resistance
- a portion of each test paper prepared was cut out and subjected to a light resistance test using a light resistance tester (trade name: Suga Test Instruments Co., Ltd., UV Long Life Fade Meter Model U48).
- the density was measured with a Macbeth reflection densitometer (use filter # 47). The results are shown in Table 2.
- Test 7 Dispersibility
- the developer dispersions prepared in each Example and Comparative Example were ground with a sand grinder, and the time taken for the 50% volume average particle size to become 0.90 ⁇ m or less was measured.
- the 50% volume average particle size was measured with a particle size distribution meter (trade name: LA-920, manufactured by HORIBA). The results are shown in Table 2. The unit is minutes.
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Abstract
Description
本願は、2009年2月3日に出願された日本国特許出願第2009-22195号及び2009年7月3日に出願された日本国特許出願第2009-158763号に対し優先権を主張し、その内容をここに援用する。
リライタブル記録材料は、はじめ消色状態にある組成物を昇温していくと、特定の温度で発色が起こり、発色状態となる。発色状態から急冷すると、発色状態のまま室温に下げることができ、発色状態が固定される。一方、発色状態から徐冷すると、降温の過程で消色が起き、はじめと同じ消色状態、或いは相対的に消色した状態が形成される。
さらに、発色状態で固定されたものをふたたび昇温していくと、発色温度より低い温度で消色が起き、ここから降温すると、はじめと同じ消色状態に戻る。このように発色状態と消色状態を制御することで、リライタブル記録材料としての使用が可能となる。
本発明のリライタブル記録材料としては、基体上に発色層を備えた記録材料であって、前記発色層が、発色性染料と、式(I)
本発明における式(I)で表される化合物は、式(II)
以下、式(I)で表されるフェノール性化合物について説明する。式(I)中、R1及びR4としては、それぞれ独立して水素原子、水酸基、ニトロ基、フッ素原子,塩素原子,臭素原子,ヨウ素原子等のハロゲン原子、メチル基,エチル基,n-プロピル基,イソプロピル基,n-ブチル基,sec-ブチル基,t-ブチル基,n-ペンチル基,イソペンチル基,ネオペンチル基,t-ペンチル基,n-ヘキシル基,イソヘキシル基,1-メチルペンチル基,2-メチルペンチル基等のC1~C6アルキル基、好ましくはC1~C4アルキル基、メトキシ基,エトキシ基,n-プロポキシ基,イソプロポキシ基,n-ブトキシ基,sec-ブトキシ基,t-ブトキシ基等のC1~C6アルコキシ基、好ましくは、C1~C4アルコキシ基を挙げることができ、R1及びR4として特に好ましくは水素原子、メチル基、メトキシ基である。
本発明のリライタブル記録材料中には、上記式(I)で表される化合物及び発色性染料の他に、画像安定剤、増感剤、填料、分散剤、酸化防止剤、減感剤、粘着防止剤、消泡剤、光安定剤、蛍光増白剤等を必要に応じ1種又は2種以上含有させることができる。それぞれの使用量は発色性染料1質量部に対して通常0.1~15質量部、好ましくは1~10質量部の範囲である。
1,1,3-トリス(2-メチル-4-ヒドロキシ-5-t-ブチルフェニル)ブタン、1,1,3-トリス(2-メチル-4-ヒドロキシ-5-t-シクロヘキシルフェニル)ブタン、4,4’-ブチリデンビス(6-t-ブチル-3-メチルフェノール)、2,2’-メチレンビス(6-t-ブチル-4-メチルフェノール)、2,2’-メチレンビス(6-t-ブチル-4-エチルフェノール)、4,4’-チオビス(6-t-ブチル-3-メチルフェノール)、1,3,5-トリス(2,6-ジメチル-4-t-ブチル-3-ヒドロキシベンジル)イソシアヌレート、1,3,5-トリス[[3,5-ビス(1,1-ジメチルエチル)-4-ヒドロキシフェニル]メチル]-1,3,5-トリアジン-2,4,6(1H,3H,5H)-トリオン、2-メチル-2-[[4-[[4-(フェニルメトキシ)フェニル]スルホニル]フェノキシ]メチル]-オキシラン、2,4,8,10-(テトラ(t-ブチル)-6-ヒドロキシ-12H-ジベンゾ[d,g][1,3,2]ジオキサホスホシン-6-オキサイドナトリウム塩、2,2-ビス(4’-ヒドロキシ-3’,5’-ジブロモフェニル)プロパン、4,4’-スルホニルビス(2,6-ジブロモフェノール)、2-(2’-ヒドロキシ-5’-メチルフェニル)ベンゾトリアゾール、4-ベンジルオキシ-4-(2-メチルグリジルオキシ)-ジフェニルスルホン、4,4’-ジグリジルオキシジフェニルスルホン、1,4-ジグリジルオキシベンゼン、4-(α-(ヒドロキシメチル)ベンジルオキシ)-4’-ヒドロキシジフェニルスルホン、2,2-メチレンビス(4,6-tert-ブチルフェニル)フォスフェイト等をあげることができる。
ステアリン酸アミドなどの高級脂肪酸アミド、ベンズアミド、ステアリン酸アニリド、アセト酢酸アニリド、チオアセトアニリド、シュウ酸ジベンジル、シュウ酸ジ(4-メチルベンジル)、シュウ酸ジ(4-クロロベンジル)、フタル酸ジメチル、テレフタル酸ジメチル、テレフタル酸ジベンジル、イソフタル酸ジベンジル、ビス(tert-ブチルフェノール)、4,4’-ジメトキシジフェニルスルホン、4,4’-ジエトキシジフェニルスルホン、4,4’-ジプロポキシジフェニルスルホン、4,4’-ジイソプロポキシジフェニルスルホン、4,4’-ジブトキシジフェニルスルホン、4,4’-ジイソブトキシジフェニルスルホン、4,4’-ジペンチルオキシジフェニルスルホン、4,4’-ジヘキシルフェニルスルホン、2,4’-ジメトキシジフェニルスルホン、2,4’-ジエトキシジフェニルスルホン、2,4’-ジプロポキシジフェニルスルホン、2,4’-ジイソプロポキシジフェニルスルホン、2,4’-ジブトキシジフェニルスルホン、2,4’-ジペンチルオキシジフェニルスルホン、2,4’-ジヘキシルオキシジフェニルスルホンなどのジフェニルスルホン及びその誘導体、4,4’-ジヒドロキシジフェニルスルホンのジエーテル類、2,4’-ジヒドロキシジフェニルスルホンのジエーテル類、1,2-ビス(フェノキシ)エタン、1,2-ビス(4-メチルフェノキシ)エタン、1,2-ビス(3-メチルフェノキシ)エタン、ジフェニルアミン、カルバゾール、2,3-ジ-m-トリルブタン、4-ベンジルビフェニル、4,4’-ジメチルビフェニル、m-ターフェニル、ジ-β-ナフチルフェニレンジアミン、1-ヒドロキシ-2-ナフトエ酸フェニルエステル、2-ナフチルベンジルエーテル、4-メチルフェニル-ビフェニルエーテル、1,2-ビス(3,4-ジメチルフェニル)エタン、2,3,5,6-テトラメチル-4’-メチルジフェニルメタン、1,2-ビス(フェノキシメチル)ベンゼン、アクリル酸アミド、ジフェニルスルホン、4-アセチルビフェニル、炭酸ジフェニル等をあげることができる。
本発明のリライタブル記録材料における基体としては、繰り返し使用できる基体であることが好ましく、例えば、紙、合成紙、合成樹脂フィルム、合成樹脂シート、不織布、古紙パルプ等の再生紙等があげられる。これらの中でも、劣化し難く長期間にわたって継続的に使用することができる点から、合成樹脂フィルム、合成樹脂シートが特に好ましい。合成樹脂フィルム、合成樹脂シートとしては、例えば、ポリエチレン、ポリプロピレン、ポリ塩化ビニル、ポリ塩化ビニリデン、エチレン-酢酸ビニル共重合体、エチレン-ビニルアルコール共重合体、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート、ポリメタクリル酸メチル、ポリアクリル酸メチル、ポリメタクリル酸エチル、ポリスチレン、三酢酸セルロース、セロハン、ポリカーボネート等のフィルム又はシートがあげられる。
本発明のリライタブル発色層形成用組成物としては、発色性染料と、式(I)で表されるフェノール性化合物とを含有するものであれば特に制限されるものではなく、発色性染料及び式(I)で表されるフェノール性化合物の混合物であってもよいし、発色性染料及び式(I)で表されるフェノール性化合物がそれぞれ別々に含有された組成物の組み合わせ(別体)であってもよい。また、本発明のリライタブル発色層形成用組成物には、式(I)で表される化合物の他に、発色性染料、画像安定剤、増感剤、填料、分散剤、酸化防止剤、減感剤、粘着防止剤、消泡剤、光安定剤、蛍光増白剤等を必要に応じ1種又は2種以上含有させることができる。これらの詳細については、上述の通りである。
(特許文献4:特開2005-1127記載の化合物)
(特許文献1:特開平8-301838記載の化合物)
(特許文献2:特開平9-295458記載の化合物)
(特許文献3:特開平10-67726記載の化合物)
本発明のリライタブル記録材料の製造方法としては、従来の記録材料と同様の方法で製造することができ、例えば、発色性染料及び式(I)で表される化合物の微粒子のそれぞれをポリビニルアルコールやセルロース等の水溶性結合剤の水溶液中に分散させ、それぞれを混合した後、基体上に塗布して乾燥することにより製造することができる。また、発色性染料及び式(I)で表される化合物のそれぞれの分散液をそれぞれ基体上に塗布して乾燥することにより製造することもできる。式(I)で表される化合物の使用割合としては、例えば、発色性染料1質量部に対して0.1~15質量部、好ましくは1~10質量部であり、より好ましくは1.5~5質量部である。
一方、消色させるためには適当な熱源を用いて発色温度以上に加熱し、徐冷するか、発色温度よりやや低い温度に一時的に加熱すればよい。長時間加熱した場合、記録材料の広い範囲が昇温し、加熱中断後は徐冷となるため、その過程で消色が起きる。この場合の加熱方法には、加熱バー、熱ローラー、熱スタンプ、熱風などを用い得るし、サーマルヘッドを用いて長時間加熱するか、発熱素子を一斉に加熱し、全巾を加熱してもよい。記録材料を消色温度域に加熱するためには、例えばサーマルヘッドへの印加電圧やパルス幅を調節することによって、印加エネルギーを記録時よりやや低下させればよい。この方法を用いれば、サーマルヘッドだけで記録・消去ができ、いわゆるリライトが可能になる。もちろん、加熱バー、熱ローラー、熱スタンプ、熱風等によって消色温度域に加熱して消去することもできる。
(感熱紙の作製)
(a)染料分散液(A液)
3-ジ-n-ブチルアミノ-6-メチル-7-アニリノフルオラン 16部
ポリビニルアルコール10%水溶液 84部
(b)顕色剤分散液(B液)
化合物No.62(第1表参照) 16部
ポリビニルアルコール10%水溶液 84部
(c)増感剤分散液(C液)
シュウ酸ジ(4-メチルベンジル) 16部
ポリビニルアルコール10%水溶液 84部
(d)填料分散液(D液)
炭酸カルシウム 27.8部
ポリビニルアルコール10%水溶液 26.2部
水 71部
実施例1中のB液1質量部の代わりに下記E液1質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
(e)顕色剤分散液(E液)
化合物No.82 16部
ポリビニルアルコール10%水溶液 84部
実施例1中のB液1質量部の代わりに下記F液1質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
(f)顕色剤分散液(F液)
化合物(A)(非特許文献1記載の化合物) 16部
ポリビニルアルコール10%水溶液 84部
実施例1中のB液1質量部の代わりに下記G液1質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
(g)顕色剤分散液(G液)
化合物(B)(特開平10-67726:特許文献3記載の化合物)16部
ポリビニルアルコール10%水溶液 84部
実施例1中のB液1質量部の代わりに下記H液1質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
(h)顕色剤分散液(H液)
4-ヒドロキシ-4’-イソプロポキシジフェニルスルホン 16部
ポリビニルアルコール10%水溶液 84部
実施例1中のB液1質量部の代わりにB液0.5質量部、G液0.5質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
実施例1中のB液1質量部の代わりにF液0.5質量部、G液0.5質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
実施例1中のB液1質量部の代わりにF液0.5質量部、H液0.5質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
実施例1中のB液1質量部の代わりにG液0.5質量部、H液0.5質量部とした以外は、実施例1に記載の方法で感熱紙を作製した。
実施例1~3及び比較例1~6で作製した感熱紙について、感熱紙発色装置(大倉電機製 TH-PMH型)を使用し、1ドットあたり0.72mjの条件で飽和発色させた。得られた画像濃度をマクベス反射濃度計(Macbeth社製、型番:RD-918、使用フィルター:#106)で測定した。その結果を第2表に示した。
試験1で得られた画像部分を、熱スタンプを用いて120℃で5秒間加熱した後、マクベス反射濃度計(使用フィルター:#106)で測定した。その結果を第2表に示した。
試験2のサンプルを再度、感熱紙発色試験装置(大倉電機製 TH-PMH型)を使用し、1ドットあたり0.72mjの条件で再発色させた。得られた画像濃度をマクベス反射濃度計(使用フィルター:#106)で測定した。その結果を第2表に示した。
試験1で得られた各試験紙を恒温器(商品名:DK-400、YAMATO製)中で60℃の温度で24時間保持した。保持した後の画像の光学濃度をマクベス反射濃度計(使用フィルター:#106)で測定した。その結果を第2表に示した。
試験1で得られた各試験紙を低温恒温恒湿器(商品名:THN050FA、ADVANTEC製)中で40℃、90%の条件で24時間保持した。保持した後の画像の光学濃度をマクベス反射濃度計(使用フィルター:#106)で測定した。その結果を第2表に示した。
作製した各試験紙の一部を切り取り、耐光性試験機(商品名:スガ試験機(株)製、紫外線ロングライフフェードメーターU48型)を使用して耐光性試験を行い、8時間後の地肌濃度をマクベス反射濃度計で測定した(使用フィルター#47)。その結果を第2表に示した。
各実施例、比較例にて調製した顕色剤分散液をサンドグラインダーにて摩砕し、50%体積平均粒径が0.90μm以下となるまでにかかる時間を測定した。50%体積平均粒径は粒度分布計(商品名:LA-920、HORIBA社製)にて測定した。その結果を第2表に示した。単位は分である。
試験1~3と同様に、同一画像の発色及び消色を15回繰り返し、15回目の発色時の発色部と、15回目の消色時の消色部を比較し、消色部の濃度が発色部の濃度の30%未満で発色部と消色部のコントラストが良好なものを○、消色部の濃度が発色部の濃度の30%以上80%未満でコントラストが不十分なものを△、消色部の濃度が発色部の濃度の80%以上で可逆性認められないものを×として評価した。
Claims (5)
- 基体上に発色層を備えたリライタブル記録材料であって、前記発色層が、発色性染料と、式(I)
- 基体が、紙、合成樹脂フィルム又は合成樹脂シートであることを特徴とする請求項1に記載のリライタブル記録材料。
- 発色性染料、及び式(I)で表されるフェノール性化合物の少なくとも1種を含有することを特徴とする請求項3に記載のリライタブル発色層形成用組成物。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080006159.4A CN102300718B (zh) | 2009-02-03 | 2010-02-01 | 可重写记录材料 |
JP2010549383A JP5253521B2 (ja) | 2009-02-03 | 2010-02-01 | リライタブル記録材料 |
US13/138,302 US20110287931A1 (en) | 2009-02-03 | 2010-02-01 | Rewritable recording material |
ES10738325.9T ES2539138T3 (es) | 2009-02-03 | 2010-02-01 | Material de registro reescribible |
EP10738325.9A EP2394820B1 (en) | 2009-02-03 | 2010-02-01 | Rewritable recording material |
US13/891,703 US8697601B2 (en) | 2009-02-03 | 2013-05-10 | Rewritable recording material |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-022195 | 2009-02-03 | ||
JP2009022195 | 2009-02-03 | ||
JP2009158763 | 2009-07-03 | ||
JP2009-158763 | 2009-07-03 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US13/138,302 A-371-Of-International US20110287931A1 (en) | 2009-02-03 | 2010-02-01 | Rewritable recording material |
US13/891,703 Continuation US8697601B2 (en) | 2009-02-03 | 2013-05-10 | Rewritable recording material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010089982A1 true WO2010089982A1 (ja) | 2010-08-12 |
Family
ID=42541893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/000570 WO2010089982A1 (ja) | 2009-02-03 | 2010-02-01 | リライタブル記録材料 |
Country Status (8)
Country | Link |
---|---|
US (2) | US20110287931A1 (ja) |
EP (1) | EP2394820B1 (ja) |
JP (1) | JP5253521B2 (ja) |
KR (1) | KR20110099341A (ja) |
CN (1) | CN102300718B (ja) |
ES (1) | ES2539138T3 (ja) |
TW (1) | TW201035016A (ja) |
WO (1) | WO2010089982A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2612847A1 (en) * | 2010-09-01 | 2013-07-10 | Nippon Soda Co., Ltd. | Recording material using phenol compound |
JP5258909B2 (ja) * | 2009-02-03 | 2013-08-07 | 日本曹達株式会社 | フェノール性化合物および記録材料 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5713505B2 (ja) * | 2009-09-29 | 2015-05-07 | 日本曹達株式会社 | フェノール性化合物を用いた記録材料 |
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- 2010-02-01 ES ES10738325.9T patent/ES2539138T3/es active Active
- 2010-02-01 JP JP2010549383A patent/JP5253521B2/ja not_active Expired - Fee Related
- 2010-02-01 CN CN201080006159.4A patent/CN102300718B/zh not_active Expired - Fee Related
- 2010-02-01 WO PCT/JP2010/000570 patent/WO2010089982A1/ja active Application Filing
- 2010-02-01 EP EP10738325.9A patent/EP2394820B1/en not_active Not-in-force
- 2010-02-01 TW TW099102870A patent/TW201035016A/zh unknown
- 2010-02-01 US US13/138,302 patent/US20110287931A1/en not_active Abandoned
- 2010-02-01 KR KR1020117017718A patent/KR20110099341A/ko not_active Application Discontinuation
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2013
- 2013-05-10 US US13/891,703 patent/US8697601B2/en not_active Expired - Fee Related
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JPH06171225A (ja) * | 1992-12-10 | 1994-06-21 | Mitsubishi Paper Mills Ltd | 可逆性感熱記録材料 |
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JPH09295458A (ja) | 1996-04-30 | 1997-11-18 | Ricoh Co Ltd | 可逆性感熱発色組成物およびそれを用いた可逆性感熱記録媒体 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5258909B2 (ja) * | 2009-02-03 | 2013-08-07 | 日本曹達株式会社 | フェノール性化合物および記録材料 |
EP2612847A1 (en) * | 2010-09-01 | 2013-07-10 | Nippon Soda Co., Ltd. | Recording material using phenol compound |
EP2612847A4 (en) * | 2010-09-01 | 2014-06-04 | Nippon Soda Co | RECORDING MATERIAL WITH A PHENOL CONNECTION |
JP2016117719A (ja) * | 2010-09-01 | 2016-06-30 | 日本曹達株式会社 | フェノール性化合物を用いた記録材料 |
Also Published As
Publication number | Publication date |
---|---|
EP2394820B1 (en) | 2015-04-08 |
US8697601B2 (en) | 2014-04-15 |
US20110287931A1 (en) | 2011-11-24 |
ES2539138T3 (es) | 2015-06-26 |
JP5253521B2 (ja) | 2013-07-31 |
EP2394820A4 (en) | 2012-07-18 |
KR20110099341A (ko) | 2011-09-07 |
JPWO2010089982A1 (ja) | 2012-08-09 |
CN102300718B (zh) | 2014-03-12 |
TW201035016A (en) | 2010-10-01 |
EP2394820A1 (en) | 2011-12-14 |
US20130244873A1 (en) | 2013-09-19 |
CN102300718A (zh) | 2011-12-28 |
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