WO2018038035A1 - 記録材料及び記録シート - Google Patents
記録材料及び記録シート Download PDFInfo
- Publication number
- WO2018038035A1 WO2018038035A1 PCT/JP2017/029728 JP2017029728W WO2018038035A1 WO 2018038035 A1 WO2018038035 A1 WO 2018038035A1 JP 2017029728 W JP2017029728 W JP 2017029728W WO 2018038035 A1 WO2018038035 A1 WO 2018038035A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- formula
- recording material
- phenyl
- methyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- B41M2205/04—Direct thermal recording [DTR]
-
- 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
- B41M2205/20—Stability against chemicals, e.g. grease
-
- 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
-
- 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
- B41M5/323—Organic colour formers, e.g. leuco dyes
-
- 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
- B41M5/323—Organic colour formers, e.g. leuco dyes
- B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
-
- 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
- B41M5/323—Organic colour formers, e.g. leuco dyes
- B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
- B41M5/3275—Fluoran compounds
-
- 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
-
- 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
- B41M5/3336—Sulfur compounds, e.g. sulfones, sulfides, sulfonamides
-
- 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
- B41M5/3372—Macromolecular compounds
-
- 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
- B41M5/3375—Non-macromolecular compounds
-
- 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
- B41M5/3377—Inorganic compounds, e.g. metal salts of organic acids
Definitions
- the present invention relates to a recording material using color development caused by a reaction between a color-forming dye and a developer, and a recording sheet using the recording material.
- 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. It is widely used for heat-sensitive recording paper for printing or pressure-sensitive copying paper for forms for copying several sheets simultaneously. These recording materials are required to develop colors quickly, maintain the whiteness of the uncolored areas (hereinafter referred to as “background”), and have high color fastness, but have long-term storage stability. In view of the above, there is a demand for a recording material that is particularly excellent in the heat resistance of the background and images. For this reason, efforts have been made to develop color developing dyes, color developers, storage stabilizers, and the like, and there is a demand for a better balance of color development sensitivity, background and image storage stability.
- Patent Document 1 describes a recording material using 4,4′-diaminodiphenylsulfone or 3,3′-diaminodiphenylsulfone as a developer or in combination with another developer or sensitizer.
- Patent Documents 2 and 3 describe that 4,4′-diaminodiphenylsulfone and 3,3′-diaminodiphenylsulfone are further used in combination in a recording material containing a color-forming dye and a specific developer, respectively.
- Patent Document 4 describes a heat-sensitive material containing an aromatic isocyanate compound and further containing 4,4′-diaminodiphenylsulfone or the like.
- Patent Documents 5, 6, 7 and 8 describe recording materials using a phenylurea compound or a phenylthiourea compound as a developer.
- An object of the present invention is to provide a recording material or a recording sheet having good color development performance, storage stability and the like.
- the present invention (1) (A) at least one chromogenic dye, (B) The following formula (I) And at least one selected from the group consisting of compounds represented by formula (II): Wherein R and R ′ are a hydrogen atom, a halogen atom, a nitro group, a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a C 2 -C 6 alkenyl group, a C 1 -C 6 haloalkyl group , N (R 4 ) 2 group (wherein R 4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C 1 -C 6 alkyl group), AR 5 (wherein A represents SO 2 —NH, Represents a group represented by NH—SO 2 , CO—NH, or NH—CO, and R 5 represents an optionally substituted C 1 -C 6 alkyl group, optionally substituted phenyl.
- R and R ′
- S represents at least one selected from the group consisting of compounds represented by: It is a recording material characterized by containing.
- R 1 to R 3 are a hydrogen atom, a halogen atom, a nitro group, a C 1 to C 6 alkyl group, a C 1 to C 6 alkoxy group, a C 2 to C 6 alkenyl group, or a C 1 to C 6 haloalkyl.
- N (R 4 ) 2 group (wherein R 4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C 1 -C 6 alkyl group), NHCOR 6 (wherein R 6 represents a C 1- C 6 alkyl group), represents a phenyl group which may have a substituent, or a benzyl group which may have a substituent, the n1 and n3, independently, any one of 1 to 5 N2 represents an integer of 1 to 4, A 1 represents a group represented by SO 2 —NH, CO—NH, NH—SO 2 , or NH—CO, and X represents A compound represented by the same formula as X in formula (II), Formula (IV) below (Wherein R 1 to R 3 represent the same as R 1 to R 3 in formula (III), n2 and n3 represent the same as n2 and n3 in formula (III), and n4 represents 1 represents an integer of ⁇ 7, a 1 represents the same as a 1 represents the
- the compound represented by the formula (I) is at least one of 4,4′-diaminodiphenylsulfone and 3,3′-diaminodiphenylsulfone, described in (1) or (2) above Recording material.
- the compound represented by the formula (III) is represented by the following formula (VI) (Wherein, R 1 ⁇ R 3, and n1 ⁇ n3 has the formula (R 1 ⁇ R 3 in III), and represent the same as n1 ⁇ n3.)
- N- (2- (3-phenylureido) phenyl) benzenesulfonamide has a diffraction angle (2 ⁇ ⁇ 0.10 degrees) in a powder X-ray diffraction method using Cu—K ⁇ rays of 23.60 degrees, 20.
- the recording material according to (6) above which is in a crystalline form characterized by an X-ray diffraction diagram showing peaks at 80 degrees, 12.24 degrees and 13.80 degrees.
- the color-forming dye is a fluoran dye.
- a recording sheet comprising a recording material layer formed from the recording material according to any one of (1) to (8) above on a support.
- the present invention it is possible to obtain a recording material or recording sheet having good color development performance and storage stability.
- a recording material having excellent background heat resistance, plasticizer resistance of color images, oil resistance, and heat resistance.
- the recording material of the present invention is a recording material that utilizes color development by the reaction of a color-forming dye and a developer, and includes at least (A) a color-forming dye and (B) a compound represented by the formula (I) And (C) a compound represented by any one of the formulas (II), (III), and (IV).
- the recording material of the present invention can be used for any application. For example, it can be used for a heat-sensitive recording material or a pressure-sensitive copying material, but it is particularly preferably used for a heat-sensitive recording material.
- the present invention is not limited to these, and any chromogenic 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 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 using a mixture of red, blue, and green primary color developing dyes or black coloring dyes.
- a fluorane color-forming dye can be preferably mentioned.
- color-forming dyes examples include 3,3-bis (p-dimethylaminophenyl) -phthalide, 3,3-bis (p-dimethylaminophenyl) -6-dimethylaminophthalide (also called crystal violet lactone), 3 , 3-bis (p-dimethylaminophenyl) -6-diethylaminophthalide, 3,3-bis (p-dimethylaminophenyl) -6-chlorophthalide, 3,3-bis (p-dibutylaminophenyl) -phthalide, 3-cyclohexylamino-6-chlorofluorane, 3-dimethylamino-5,7-dimethylfluorane, 3-N-methyl-N-isopropylamino-6-methyl-7-anilinofluorane, 3-N- Methyl-N-isobutylamino-6-methyl-7-anilinofluorane, 3-N-methyl-N-isoamylamin
- the near infrared absorbing dye 3- [4- [4- (4-anilino) -anilino] anilino] -6-methyl-7-chlorofluorane, 3,3-bis [2- (4- Dimethylaminophenyl) -2- (4-methoxyphenyl) vinyl] -4,5,6,7-tetrachlorophthalide, 3,6,6'-tris (dimethylamino) spiro (fluorene-9,3'- Phthalide) and the like.
- ((B) component) Component (B), which is an additive used in the recording material of the present invention, has the formula (I) It is a compound represented by these. At least a part of the component (B) component functions as a developer that reacts with the component (A) alone in the recording sheet, and also when used in combination with a specific developer, a storage stabilizer or sensitizer. Is known to function as: In the present invention, the component (B) improves the developer function by being used in combination with the component (C) which is a developer. In the formula (I), two amino groups are present as substituents at any one of positions 2 to 4 of different benzene rings.
- Specific positions thereof may be any of 2, 2 ′ position, 2, 3 ′ position, 2, 4 ′ position, 3, 3 ′ position, 3, 4 ′ position, and 4, 4 ′ position.
- the component (B) may be a mixture comprising a plurality of these compounds. Of these, at least one of 4,4′-diaminodiphenylsulfone and 3,3′-diphenylsulfone is preferable, and 4,4′-diaminodiphenylsulfone is particularly preferable.
- the component (C) used in the recording material of the present invention is a developer having the formula (II) It is at least 1 sort (s) chosen from the group which consists of a compound represented by these.
- R and R ' a hydrogen atom, a halogen atom, a nitro group, C 1 ⁇ C 6 alkyl group; C 1 ⁇ C 6 alkoxy groups; C 2 ⁇ C 6 alkenyl group; C 1 ⁇ A C 6 haloalkyl group; N (R 4 ) 2 groups (R 4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C 1 -C 6 alkyl group); AR 5 (A represents SO 2 —NH, NH—SO 2 , CO—NH, or NH—CO, and R 5 represents a C 1 -C 6 alkyl group which may have a substituent, a substituent.
- R and R ′ are preferably a hydrogen atom or a linear C 1 -C 6 alkyl group, more preferably a hydrogen atom or a methyl group, and particularly preferably a hydrogen atom.
- n and n ′ each independently represents an integer of 1 to 5.
- X represents O or S. X is particularly preferably O.
- C1-C6 alkyl group which may have a substituent phenyl group which may have a substituent”, “benzyl group which may have a substituent”, “having a substituent”
- substituents in the “optional 1-naphthyl group” and the “optionally substituted 2-naphthyl group” include a halogen atom, a nitro group, a C1-C6 alkyl group, and a C1-C6 alkoxy group.
- R 1 ⁇ R 3 a hydrogen atom, a halogen atom, a nitro group, C 1 ⁇ C 6 alkyl group; C 1 ⁇ C 6 alkoxy groups; C 2 -C 6 alkenyl group; C 1 -C 6 fluoroalkyl group; N (R 4 ) 2 groups (R 4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C 1 -C 6 alkyl group); NHCOR 6 (R 6 represents a C 1 -C 6 alkyl group); A phenyl group which may have a substituent; The benzyl group which may have a substituent can be mentioned.
- R 1 to R 3 are a hydrogen atom or a linear C 1 to C 6 alkyl group, and more preferably R 1 is a hydrogen atom or a methyl group, and R 2 and R 3 Is a hydrogen atom.
- n1 and n3 each independently represents an integer of 1 to 5, and n2 represents an integer of 1 to 4.
- n4 represents an integer of 1 to 7.
- a 1 represents a group represented by SO 2 —NH, NH—SO 2 , CO—NH, or NH—CO.
- A is more preferably a group represented by SO 2 —NH or NH—SO 2 , and particularly preferably a group represented by SO 2 —NH.
- X represents O or S. X is particularly preferably O.
- phenyl group which may have a substituent” and “benzyl group which may have a substituent” include a halogen atom, a nitro group, a C1-C6 alkyl group, C1-C6 alkoxy group, C2-C6 alkenyl group, C1-C6 haloalkyl group, N (R 4 ) 2 group (wherein R 4 represents a hydrogen atom, a phenyl group, a benzyl group, or a C 1 -C 6 alkyl group) And NHCOR 6 (wherein R 6 represents a C 1 -C 6 alkyl group), among which a halogen atom, a nitro group, a C 1 -C 6 alkyl group, a C 1- Any of a C 6 alkoxy group, a C 2 -C 6 alkenyl group, or a C 1 -C 6 haloalkyl group is
- Representative compounds represented by the formulas (II) to (V) include N- (3- (3-phenylureido) phenyl) benzenesulfonamide, N- (4- (3-phenylureido) phenyl) benzene.
- halogen atom examples include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
- C 1 -C 6 alkyl group examples include a methyl group, an ethyl group, an n-propyl group, an i- Examples include propyl group, n-butyl group, s-butyl group, i-butyl group, t-butyl group, n-pentyl group, n-hexyl group and the like.
- Examples of the C 1 -C 6 alkoxy group include a methoxy group, an ethoxy group, an n-propoxy group, an i-propoxy group, an n-butoxy group, an s-butoxy group, an i-butoxy group, and a t-butoxy group.
- Examples of the C 2 -C 6 alkenyl group include a vinyl group, 1-propenyl group, 2-propenyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 1-methyl-2-propenyl group, 2- Methyl-2-propenyl group, 1-pentenyl group, 2-pentenyl group, 3-pentenyl group, 4-pentenyl group, 1-methyl-2-butenyl group, 2-methyl-2-butenyl group, 1-hexenyl group, Examples include 2-hexenyl group, 3-hexenyl group, 4-hexenyl group, 5-hexenyl group and the like.
- a C 1 -C 6 haloalkyl group is an alkyl group substituted by a halogen atom, for example, a chloromethyl group, a bromomethyl group, a fluoromethyl group, a trifluoromethyl group, a trichloromethyl group, a tribromomethyl group, 2,2, Examples include 2-trichloroethyl group, 2,2,3,3,3-pentafluoropropyl group or 1-chlorobutyl group, 6-fluorohexyl group, 6,6,6-trifluorohexyl group and the like.
- N- (2- (3-phenylureido) phenyl) benzenesulfonamide has been shown by the present inventors to exist in two crystal forms (International Patent Application No. PCT / JP2016 / 000836). That is, the diffraction angle (2 ⁇ ⁇ 0.10 degree) in the powder X-ray diffraction method using Cu—K ⁇ rays is Crystalline Form I showing peaks at 5.80 degrees, 9.32 degrees, 24.52 degrees and 23.40 degrees, and peaks at 23.60 degrees, 20.80 degrees, 12.24 degrees and 13.80 degrees Crystal form II shown It is. Since the diffraction angle is 2 ⁇ ⁇ 0.10 degrees, it includes the range of ⁇ 0.10 degrees from the above numerical values.
- crystal form I, II or a mixture thereof may be used, and N- (2- (3-phenylureido) phenyl) benzenesulfonamide, which is crystal form II, is used.
- N- (2- (3-phenylureido) phenyl) benzenesulfonamide which is crystalline form II in the present invention.
- the ratio of the component (C) to the color-forming dye is usually 0.01 to 10 parts by weight, preferably 0.5 to 10 parts by weight, preferably 1 part by weight of the color-forming dye. Is 1.0 to 5 parts by mass, more preferably 1.5 to 4.0 parts by mass.
- the component (C) is preferably contained in the range of 3 to 35% by mass, more preferably in the range of 10 to 25% by mass, based on the total mass of the solid component forming the heat-sensitive layer. is there.
- the ratio of the compound represented by the formula (I) to the component (C) is usually 0.01 to 5 parts by mass, preferably 0, relative to 1 part by mass of the component (C). The ratio is from 1 to 1 part by weight, more preferably from 0.15 to 0.5 part by weight.
- the recording material of the present invention in addition to the components (A), (B), and (C), other known color developers, sensitizers, image stabilizers, fillers, dispersants, One or more antioxidants, anti-tacking agents, antifoaming agents, light stabilizers, fluorescent brightening agents and the like can be contained as necessary.
- the amount of components other than the color-forming dye used is usually in the range of 0.1 to 15 parts by weight, preferably 1 to 10 parts by weight, per 1 part by weight of the color-forming dye.
- These agents may be contained in the color-developing layer.
- these layers are used. It can contain.
- an antioxidant and a light stabilizer can be contained in these layers in the form of being encapsulated in microcapsules, if necessary.
- the other developer include the following.
- Bisphenol A 4,4′-sec-butylidene bisphenol, 4,4′-cyclohexylidene bisphenol, 2,2′-bis (4-hydroxyphenyl) -3,3′-dimethylbutane, 2,2′- Dihydroxydiphenyl, pentamethylene-bis (4-hydroxybenzoate), 2,2-dimethyl-3,3-di (4-hydroxyphenyl) pentane, 2,2-bis (4-hydroxyphenyl) hexane, 2,2- Bis (4-hydroxyphenyl) propane, 2,2-bis (4-hydroxyphenyl) butane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, 4,4 '-(1-phenylethylidene) Bisphenol, 4,4'-ethylidenebisphenol, 4- (4-hydroxyphenyl) -2-methylphenol, 2,2 ' Bis (4-hydroxy-3-phenyl-phenyl) propane, 4,4 ′-(1,3-phenylenediiso
- the isocyanate compounds described in Patent Document 4 and the like also have a function of reacting with a color-forming dye having an amino group to develop a color.
- the recording material of the present invention includes It is preferable not to contain.
- the proportion of the developer used relative to the color-forming dye is 0.01 to 10 parts by weight, more preferably 0.5 to 10 parts by weight, based on 1 part by weight of the color-forming dye. .
- sensitizer examples include the following. Higher fatty acid amides such as stearic acid amide, stearic acid anilide, or palmitic acid amide; Amides such as benzamide, acetoacetanilide, thioacetanilide, acrylic acid amide, ethylenebisamide, orthotoluenesulfonamide, paratoluenesulfonamide; Phthalic acid diesters such as dimethyl acid, dibenzyl isophthalate, dimethyl isophthalate, dimethyl terephthalate, diethyl isophthalate, diphenyl isophthalate, dibenzyl terephthalate; dibenzyl oxalate, di (4-methylbenzyl) oxalate, dioxalate (4-chlorobenzyl), an equivalent mixture of dibenzyl oxalate and di (4-chlorobenzyl) oxalate, an equivalent mixture of di (4-chlorobenzyl) oxalate
- Oxalic acid diesters bis (t-butylphenol) such as 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 4,4′-methylenebis (2,6-di-tert-butylphenol) ); 1,2-bis (phenoxy) ethane (abbreviated EGPE), 1,2-bis (4-methylphenoxy) ethane, 1,2-bis (3-methylphenoxy) ethane, 1,2-bis (phenoxy) Methyl) benzene, 1,2-bis (4-methoxyphenylthio) ethane, 1,2-bis (4-methoxyphenoxy) propane, 1,3-phenoxy-2-propanol, 1,4-diphenylthio-2- Butene, 1,4-diphenylthiobutane, 1,4-diphenoxy-2-butene, 1,5-bis (4-methoxyphenoxy) -3-oxapentane, 1,3-diben Zoyloxypropane, dibenzoyloxy
- the image heat resistance and the like of the recording sheet may be slightly inferior.
- the recording sheet of the present invention such a problem is caused by further using a compound represented by the formula (I). It can also be solved.
- the amount of the sensitizer used is preferably in the range of 1 to 40% by mass, more preferably in the range of 5 to 25% by mass, and still more preferably in the range of 8 to 20% by mass in the total solid amount of the heat-sensitive recording layer. .
- the image stabilizer examples include epoxy group-containing diphenylsulfones such as 4-benzyloxy-4 ′-(2-methylglycidyloxy) -diphenylsulfone and 4,4′-diglycidyloxydiphenylsulfone; 1,4- Diglycidyloxybenzene, 4- [ ⁇ - (hydroxymethyl) benzyloxy] -4′-hydroxydiphenylsulfone, 2-propanol derivatives, salicylic acid derivatives, metal salts of oxynaphthoic acid derivatives (especially zinc salts), (2,2 -Metal salt of methylenebis (4,6-di (t-butyl) phenyl)) phosphate, other water-insoluble zinc compounds, 2,2-bis (4'-hydroxy-3 ', 5'-dibromophenyl) propane, 4,4′-sulfonylbis (2,6-dibromophenol), 4,4′-butylidene (6-tert-but
- the image stabilizer is preferably a solid at room temperature, particularly preferably a compound having a melting point of 60 ° C. or higher and hardly soluble in water.
- the image stabilizer is preferably used in the range of 0.2 to 0.5 parts by mass with respect to 1 part by mass of component (C).
- the image stabilizer is preferably used in the range of 1 to 30% by mass and more preferably in the range of 5 to 20% by mass in the total solid amount of the heat-sensitive recording layer.
- fillers 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, plastic pigment, diatomaceous earth, Examples include talc and aluminum hydroxide. Among these, calcined kaolin and calcium 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.
- the filler is preferably used in an amount of 50% by mass or less, more preferably 30% by mass or less, out of the total solid amount of the thermosensitive recording layer.
- dispersant examples include polyvinyl alcohols having various saponification and polymerization degrees, such as polyvinyl alcohol, acetoacetylated polyvinyl alcohol, carboxy-modified polyvinyl alcohol, sulfonic acid-modified polyvinyl alcohol, amide-modified polyvinyl alcohol, and butyral-modified polyvinyl alcohol.
- Cellulose derivatives such as methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, ethylcellulose, acetylcellulose, hydroxymethylcellulose, sodium polyacrylate, polyacrylate, polyacrylamide, starch, sulfosuccinates such as dioctyl sodium sulfosuccinate, dodecylbenzenesulfone Sodium salt, sodium salt of lauryl alcohol sulfate, fat Salt, styrene-maleic anhydride copolymer, styrene-butadiene copolymer, polyvinyl chloride, polyvinyl acetate, polyacrylate, polyvinyl butyral, polyurethane, polystyrene and copolymers thereof, polyamide resin, silicone resin, A petroleum resin, a terpene resin, a ketone resin, a coumaro resin, etc.
- sulfosuccinates such as dioctyl sodium s
- the dispersant can be used by being dissolved in a solvent such as water, alcohol, ketone, ester, hydrocarbon or the like, or can be used in a state of being emulsified or pasted in water or another solvent.
- the dispersant is preferably used in the range of 5 to 50% by mass, more preferably in the range of 10 to 40% by mass, based on the total solid content of the thermosensitive recording layer.
- antioxidants examples include 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2,2′-methylenebis (4-ethyl-6-tert-butylphenol), and 4,4′-butylidenebis. (3-methyl-6-t-butylphenol), 4,4'-thiobis (2-t-butyl-5-methylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-t -Butylphenyl) butane, 1,1,3-tris (2-methyl-4-hydroxy-5-cyclohexylphenyl) butane, 4- ⁇ 4- [1,1-bis (4-hydroxyphenyl) ethyl] - ⁇ , ⁇ -dimethylbenzyl ⁇ phenol, 1,1,3-tris (2-methyl-4-hydroxy-5-cyclohexylphenyl) butane, 2,2′-methylenebis (6-tert- Butyl-4-methylphenol), 2,2′-methylenebis (6-tert-butyl-4-eth
- 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 ultraviolet absorbers such as phenyl salicylate, pt-butylphenyl salicylate, p-octylphenyl salicylate; 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2- Hydroxy-4-benzyloxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4 Benzophenone ultraviolet absorbers such as' -dimethoxybenzophenone, 2-hydroxy-4-methoxy-5-sulfobenzophenone, bis (2-methoxy-4-hydroxy-5-benzoylphenyl) methane; 2- (2'-hydroxy -5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-t-butylphenyl) benzotriazole, 2-
- the recording sheet of the present invention is a recording sheet having a recording material layer formed from any of the recording materials described above.
- the compound represented by the formula (I) is contained in a coloring layer containing a coloring dye and a developer.
- examples of the compound represented by the formula (I) include the same compounds as those mentioned as the component (B). Among these, at least one of 4,4'-diaminodiphenyl sulfone and 3,3'-diaminodiphenyl sulfone is preferable, and 4,4'-diaminophenyl sulfone is particularly preferable.
- thermal recording paper As the recording sheet of the present invention, there may be mentioned thermal recording paper and pressure-sensitive copying paper, preferably thermal recording paper.
- heat-sensitive recording paper it may be carried out in the same manner as in known methods.
- fine particles of the compound represented by formula (I) are dispersed in an aqueous solution of a water-soluble binder such as polyvinyl alcohol or cellulose. It is possible to produce the suspension by mixing the suspension in which the fine particles of the color developing dye and the fine particles of the developer are similarly dispersed, applying the mixture to a support such as paper, and drying.
- the support used for the recording sheet of the present invention conventionally known paper, synthetic paper, recycled paper such as waste paper pulp, film, plastic film, foamed plastic film, non-woven fabric and the like can be used. Moreover, what combined these can also be used as a support body. Of these, those using paper as a support are preferred.
- the thickness of the support is not particularly limited, but is usually about 1 to 500 ⁇ m.
- a dispersion containing a chromogenic dye dispersion, a developer dispersion, a sensitizer dispersion, and a filler dispersion may be applied to the paper as it is. After the coating layer dispersion is applied and dried, the dispersion may be applied. Preferably, the color development sensitivity is better when the undercoat layer dispersion is applied and then the dispersion is applied.
- the undercoat layer dispersion is used for improving the smoothness of the surface of the support, and is not particularly limited, but preferably contains a filler, a dispersant, and water.
- the filler is preferably calcined kaolin or calcium carbonate, and the dispersant is preferably polyvinyl alcohol.
- a method of applying a dispersion containing a dye dispersion, a developer dispersion, a sensitizer dispersion, and a filler dispersion to the support and drying it is preferable.
- a method of spraying the dispersion with a spray or the like and drying, a method of immersing in the dispersion for a predetermined time and drying, etc. can be mentioned.
- the coating amount is usually in the range of 0.1 to 100 g / m 2 , preferably 1 to 20 g / m 2 in terms of the mass after drying, although it depends on the concentration of the recording material dispersion.
- Example 1-1 Using the same dispersion liquid of components A to C as in Example 1-1, 1 part by mass of A liquid, 3 parts by mass of B liquid, and 3 parts by mass of C liquid were mixed to obtain a color layer coating solution. On the white paper, the color forming layer coating solution was applied, dried and calendered in the same manner as in Example 1-1 to prepare a heat-sensitive recording paper (the color developing layer coating solution was about 5.5 g / dry weight). m 2 ).
- Example 1-2 Using the same dispersion of each component of A, C and D as in Example 1-1, mixing 1 part by mass of A, 3 parts by mass of C, and 3 parts by mass of D, did. On the white paper, the color forming layer coating solution was applied, dried and calendered in the same manner as in Example 1-1 to prepare a heat-sensitive recording paper (the color developing layer coating solution was about 5.5 g / dry weight). m 2 ).
- Example 2-1 Using the same dispersion liquids A to D as in Example 1-1, mixing 1 part by mass of A liquid, 2 parts by mass of B liquid, 3 parts by mass of C liquid, and 1 part by mass of D liquid A coating solution was obtained. On a white paper, first, liquid C was applied and dried using a wire rod (Webster, wire bar No. 12) to prepare an undercoat layer. Next, a color developing layer coating solution was applied onto the undercoat layer in the same manner as in Example 1-1, dried, and calendered to produce a heat-sensitive recording paper (the color developing layer coating solution had a dry mass of about 5%). .5 g / m 2 ).
- Example 2-2 Developer dispersion (B 'liquid) N- (2- (3-phenylureido) phenyl) benzenesulfonamide Type I crystal 16 parts Polyvinyl alcohol 10% aqueous solution 84 parts (parts by weight) The mixture of the composition of B ′ liquid was sufficiently ground with a sand grinder to prepare a dispersion of the components of B ′ liquid.
- Example 1-1 Using the same A, C and D liquids as in Example 1-1, and the dispersion liquid of each component of the B 'liquid, A part 1 part, B' part 2 parts, C part 3 parts, D part 1 part by mass was mixed to prepare a color layer coating solution.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 2-3 The same dispersion liquids A to D as in Example 2-1 were used, and 1 part by mass of A liquid, 1.8 parts by mass of B liquid, 4 parts by mass of C liquid, and 0.2 part by mass of D liquid were mixed. Thus, a coloring layer coating solution was obtained. On the white paper, in the same manner as in Example 2-1, the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 2-4 Using the same dispersion of each component of A, B ′, C and D as in Example 2-2, 1 part by mass of A liquid, 1.8 parts by mass of B ′ liquid, 4 parts by mass of C liquid, 0 of D liquid .2 parts by mass was mixed to prepare a color layer coating solution. On the white paper, in the same manner as in Example 2-1, the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 3-1 In the same manner as in Example 2-3, a color-sensitive layer coating solution was prepared, an undercoat layer was prepared, and then a color-forming layer coating solution was applied, dried, and calendared to prepare a heat-sensitive recording paper (color-forming layer).
- the coating solution for drying is about 5.5 g / m 2 in terms of dry mass).
- Example 3-2 In the same manner as in Example 2-4, a color-sensitive layer coating solution was prepared, an undercoat layer was prepared, and then a color-forming layer coating solution was applied, dried, and calendared to prepare a heat-sensitive recording paper (color-forming layer).
- the coating solution for drying is about 5.5 g / m 2 in terms of dry mass).
- Example 3-3 Sensitizer dispersion (liquid E) EGPE 16 parts polyvinyl alcohol 10% aqueous solution 84 parts (parts are parts by mass) The mixture of the composition of E liquid was fully ground with a sand grinder to prepare a dispersion of E liquid components.
- Example 1-1 The same liquids A to D as in Example 1-1 and the dispersion liquid of each component of the liquid E were used.
- a liquid 1 part by weight, B liquid 1.8 parts by weight, C liquid 4 parts by weight, D liquid 0. 2 parts by mass and 1 part by mass of E solution were mixed to prepare a coating solution for a color developing layer.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 3-4 Using the same A, B ′, C and D liquids as in Example 2-2 and the same liquid dispersion of E liquid as in Example 3-3, 1 part by weight of A liquid and 1.8 parts by weight of B ′ liquid Part, 4 parts by mass of C liquid, 0.2 part by mass of D liquid, and 1 part by mass of E liquid were mixed to prepare a coating solution for a coloring layer.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 3-5 Using the same A to D liquids as in Example 1-1 and the same liquid dispersion of E liquid as in Example 3-3, 1 part by mass of A liquid, 1.7 parts by mass of B liquid, 4 parts by mass of C liquid Part, 0.3 part by mass of D liquid, and 1 part by mass of E liquid were mixed to prepare a coating solution for a color developing layer.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 3-6 Using the same A to D liquids as in Example 1-1 and the same liquid dispersions of E liquid as in Example 3-3, 1 part by mass of A liquid, 1.6 parts by mass of B liquid, 4 parts by mass of C liquid Part, 0.4 part by mass of D liquid, and 1 part by mass of E liquid were mixed to prepare a coating solution for a coloring layer.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Example 3-7 The same liquids A to D as in Example 1-1 and the same liquid dispersion of liquid E as in Example 3-3 were used, and 1 part by weight of liquid A, 1.5 parts by weight of liquid B, and 4 parts by weight of liquid C Part, 0.5 part by mass of D liquid, and 1 part by mass of E liquid were mixed to prepare a coating solution for a color developing layer.
- the undercoat layer was prepared, and then the color layer coating solution was applied, dried, and calendered to prepare a heat-sensitive recording paper (the color layer coating solution was About 5.5 g / m 2 in dry mass).
- Table 1 shows the relationship between the evaluation sample and the presence or absence of the developer and additive 4,4'-diaminodiphenylsulfone, the sensitizer, the content ratio of them, and the presence or absence of the undercoat layer.
- thermo-hygrostat trade name: THN050FA, manufactured by ADVANTEC
- the optical density after the test was measured with a spectrocolorimeter (Spectroeye LT, manufactured by X-rite).
- the recording sheet of the present invention is excellent in heat resistance and moisture and heat resistance of the background, and particularly has good heat resistance even when a sensitizer is used in combination. It was found that there was no range.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Polarising Elements (AREA)
Abstract
Description
本願は、2016年8月24日に出願された日本国特許出願第2016-164088号に対し優先権を主張し、その内容をここに援用する。
特許文献2及び3には、発色性染料と特定の顕色剤とを含有する記録材料において、各々4,4’-ジアミノジフェニルスルホン及び3,3’-ジアミノジフェニルスルホンをさらに併用することが記載されている。
また、芳香族イソシアナート化合物を含有する感熱材料で、4,4’-ジアミノジフェニルスルホン等をさらに含有するものが、特許文献4等に記載されている。また、フェニルウレア系化合物又はフェニルチオウレア系化合物を顕色剤として用いた記録材料が特許文献5、6、7及び8に記載されている。
(1)(A)発色性染料の少なくとも1種、
(B)下記式(I)
(C)下記式(II)
を含有することを特徴とする記録材料である。
また、
(2)前記式(II)で表される化合物が、
下記式(III)
下記式(IV)
下記式(V)
からなる群から選ばれる少なくとも1種、
であることを特徴とする、上記(1)に記載の記録材料である。
また、
(3)前記式(I)で表される化合物が、4,4’-ジアミノジフェニルスルホン、及び3,3’-ジアミノジフェニルスルホンの少なくとも1種である、上記(1)又は(2)に記載の記録材料である。
また、
(4)前記式(III)、式(IV)又は式(V)で表される化合物において、A1がSO2-NHであり、XがOである、上記(2)又は(3)に記載の記録材料である。
また、
(5)前記式(III)で表される化合物が、下記式(VI)
さらに、
(6)前記式(VI)で表される化合物が、N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドである、上記(5)に記載の記録材料である。
また、
(7)N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドが、Cu-Kα線による粉末X線回折法における回折角(2θ±0.10度)が23.60度、20.80度、12.24度及び13.80度にピークを示すX線回折図により特徴づけられる結晶形のものである、上記(6)に記載の記録材料である。
また、
(8)発色性染料が、フルオラン系染料であることを特徴とする、上記(1)~(7)のいずれかに記載の記録材料である。
また、
(9)支持体上に上記(1)~(8)のいずれかに記載の記録材料から形成されてなる記録材料層を有することを特徴とする記録シートである。
本発明の記録材料は、発色性染料と顕色剤との反応による発色を利用した記録材料であって、少なくとも(A)発色性染料と、(B)前記式(I)で表される化合物と、(C)前記式(II)、(III)、及び(IV)のいずれかで表される化合物とを含有するものである。
本発明の記録材料はどの様な用途にも使用でき、例えば、感熱記録材料又は感圧複写材料等に利用することができるが、特に感熱記録材料に利用することが好ましい。
本発明の記録材料に使用される(A)成分である発色性染料としては、フルオラン系、フタリド系、ラクタム系、トリフェニルメタン系、フェノチアジン系、スピロピラン系等のロイコ染料を挙げることができるが、これらに限定されるものではなく、酸性物質である顕色剤と接触することにより発色する発色性染料であれば使用できる。また、これらの発色性染料は単独で使用し、その発色する色の記録材料を製造することは勿論であるが、それらの2種以上を混合使用することができる。例えば、赤色、青色、緑色の3原色の発色性染料又は黒発色性染料を混合使用して真に黒色に発色する記録材料を製造することができる。
このうち、フルオラン系発色性染料を好ましく挙げることができる。
本発明の記録材料に使用される添加剤である(B)成分は、式(I)
前記式(I)中、2個のアミノ基は互いに異なるベンゼン環の2~4位いずれかの置換基として存在する。それらの具体的な位置としては2,2’位、2,3’位、2,4’位、3,3’位、3,4’位、4,4’位のいずれでもよい。また(B)成分はこれらの化合物の複数からなる混合物であってもよい。
このうち、4,4’-ジアミノジフェニルスルホン及び3,3’-ジフェニルスルホンの少なくともいずれかであることが好ましく、4,4’-ジアミノジフェニルスルホンが特に好ましい。
本発明の記録材料に使用される(C)成分は、顕色剤であって、式(II)
ただし式(II)中、R及びR’としては、水素原子;ハロゲン原子;ニトロ基;C1~C6アルキル基;C1~C6アルコキシ基;C2~C6アルケニル基;C1~C6ハロアルキル基;
N(R4)2基(R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す);
AR5(AはSO2-NH、NH-SO2、CO-NH、又はNH-COを表し、R5は置換基を有してもよいC1~C6アルキル基、置換基を有してもよいフェニル基、置換基を有してもよい1-ナフチル基、又は置換基を有してもよい2-ナフチル基を表す);
置換基を有してもよいフェニル基;
置換基を有してもよいベンジル基;
を挙げることができる。
好ましくは、R及びR’としては、水素原子又は直鎖状のC1~C6アルキル基であり、さらに好ましくは、水素原子又はメチル基であり、特に好ましくは水素原子である。
n及びn’は、それぞれ独立して、1~5のいずれかの整数を表す。
Xは、O又はSを表す。Xは特にOであることが好ましい。
上記「置換基を有してもよいC1~C6アルキル基」、「置換基を有してもよいフェニル基」、「置換基を有してもよいベンジル基」、「置換基を有してもよい1-ナフチル基」及び「置換基を有しても良い2-ナフチル基」における「置換基」として、具体的には、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、C1~C6ハロアルキル基、N(R4)2基(式中、R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す)、NHCOR6(式中、R6は、C1~C6アルキル基を表す)等を挙げることができ、このうち、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、又はC1~C6ハロアルキル基のいずれかが好ましい。
式(III)
ただし式(III)、(IV)及び(V)中、R1~R3としては、水素原子;ハロゲン原子;ニトロ基;C1~C6アルキル基;C1~C6アルコキシ基;C2~C6アルケニル基;C1~C6フルオロアルキル基;
N(R4)2基(R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す);
NHCOR6(R6はC1~C6アルキル基を表す);
置換基を有してもよいフェニル基;
置換基を有してもよいベンジル基を挙げることができる。
好ましくは、R1~R3としては、水素原子又は直鎖状のC1~C6アルキル基であり、さらに好ましくは、R1としては、水素原子又はメチル基であり、R2及びR3としては、水素原子である。
n1及びn3は、それぞれ独立して、1~5のいずれかの整数を表し、n2は、1~4のいずれかの整数を表す。n4は、1~7のいずれかの整数を表す。
A1は、SO2-NH、NH-SO2、CO-NH、又はNH-COで表される基を表す。AはSO2-NH又はNH-SO2で表される基であることがより好ましく、SO2-NHで表される基であることが特に好ましい。
Xは、O又はSを表す。Xは特にOであることが好ましい。
上記「置換基を有してもよいフェニル基」及び「置換基を有してもよいベンジル基」における「置換基」として、具体的には、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、C1~C6ハロアルキル基、N(R4)2基(式中、R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す)、NHCOR6(式中、R6は、C1~C6アルキル基を表す)等を挙げることができ、このうち、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、又はC1~C6ハロアルキル基のいずれかが好ましい。
これらのうち、下記式(VI)
5.80度、9.32度、24.52度及び23.40度にピークを示す結晶形I、及び
23.60度、20.80度、12.24度及び13.80度にピークを示す結晶形II
である。なお、回折角は、2θ±0.10度であるから、上記各数値から±0.10度の範囲を包含する。
(C)成分としては、結晶形I、II又はそれらの混合物であってもよいが、このうちの結晶形IIであるN-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドを用いた場合に、保存安定性が特に向上するため、本発明においては、結晶形IIであるN-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドを用いることが好ましい。
また、成分(C)は、感熱層を形成する固型分全体質量に対して、3~35質量%の範囲で含まれているのが好ましく、更に好ましくは、10~25質量%の範囲である。
また本発明の記録材料において、成分(C)に対する式(I)で表される化合物の使用割合は、通常、成分(C)の1質量部に対し0.01~5質量部、好ましくは0.1~1質量部、さらに好ましくは0.15~0.5質量部の割合である。
本発明の記録材料の中には、(A)、(B)、及び(C)の各成分の他に、その他の公知の顕色剤、増感剤、画像安定剤、填料、分散剤、酸化防止剤、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。発色性染料以外の成分の使用量は、それぞれ、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。
ビスフェノールA、4,4’-sec-ブチリデンビスフェノール、4,4’-シクロヘキシリデンビスフェノール、2,2’-ビス(4-ヒドロキシフェニル)-3,3’-ジメチルブタン、2,2’-ジヒドロキシジフェニル、ペンタメチレン-ビス(4-ヒドロキシベンゾエート)、2,2-ジメチル-3,3-ジ(4-ヒドロキシフェニル)ペンタン、2,2-ビス(4-ヒドロキシフェニル)ヘキサン、2,2-ビス(4-ヒドロキシフェニル)プロパン、2,2-ビス(4-ヒドロキシフェニル)ブタン、2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン、4,4’-(1-フェニルエチリデン)ビスフェノール、4,4’-エチリデンビスフェノール、4-(4-ヒドロキシフェニル)-2-メチルフェノール、2,2’-ビス(4-ヒドロキシ-3-フェニル-フェニル)プロパン、4,4’-(1,3-フェニレンジイソプロピリデン)ビスフェノール、4,4’-(1,4-フェニレンジイソプロピリデン)ビスフェノール、2,2-ビス(4-ヒドロキシフェニル)酢酸ブチル等のビスフェノール化合物;4,4’-ジヒドロキシジフェニルチオエーテル、1,7-ジ(4-ヒドロキシフェニルチオ)-3,5-ジオキサヘプタン、2,2’-ビス(4-ヒドロキシフェニルチオ)ジエチルエーテル、4,4’-ジヒドロキシ-3,3’-ジメチルジフェニルチオエーテル等の含硫黄ビスフェノール化合物;4-ヒドロキシ安息香酸ベンジル、4-ヒドロキシ安息香酸エチル、4-ヒドロキシ安息香酸プロピル、4-ヒドロキシ安息香酸イソプロピル、4-ヒドロキシ安息香酸ブチル、4-ヒドロキシ安息香酸イソブチル、4-ヒドロキシ安息香酸4-クロロベンジル、4-ヒドロキシ安息香酸4-メチルベンジル、4-ヒドロキシ安息香酸ジフェニルメチル等の4-ヒドロキシ安息香酸エステル類;安息香酸亜鉛、4-ニトロ安息香酸亜鉛等の安息香酸金属塩、4-[2-(4-メトキシフェニルオキシ)エチルオキシ]サリチル酸等のサリチル酸類;サリチル酸亜鉛、ビス[4-(オクチルオキシカルボニルアミノ)-2-ヒドロキシ安息香酸]亜鉛等のサリチル酸金属塩;4,4’-ジヒドロキシジフェニルスルホン、2,4’-ジヒドロキシジフェニルスルホン、4-ヒドロキシ-4’-メチルジフェニルスルホン、4-ヒドロキシ-4’-イソプロポキシジフェニルスルホン、4-ヒドロキシ-4’-ブトキシジフェニルスルホン、4,4’-ジヒドロキシ-3,3’-ジアリルジフェニルスルホン、3,4-ジヒドロキシ-4’-メチルジフェニルスルホン、4,4’-ジヒドロキシ-3,3’,5,5’-テトラブロモジフェニルスルホン、4-アリルオキシ-4’-ヒドロキシジフェニルスルホン、2-(4-ヒドロキシフェニルスルホニル)フェノール、4,4’-スルホニルビス[2-(2-プロペニル)]フェノール、4-[{4-(プロポキシ)フェニル}スルホニル]フェノール、4-[{4-(アリロキシ)フェニル}スルホニル]フェノール、4-[{4-(ベンジロキシ)フェニル}スルホニル]フェノール、2,4-ビス(フェニルスルホニル)-5-メチル-フェノール等のヒドロキシスルホン類;4-フェニルスルホニルフェノキシ亜鉛、マグネシウム、アルミニウム、チタン等のヒドロキシスルホン類の多価金属塩類;4-ヒドロキシフタル酸ジメチル、4-ヒドロキシフタル酸ジシクロヘキシル、4-ヒドロキシフタル酸ジフェニル等の4-ヒドロキシフタル酸ジエステル類;2-ヒドロキシ-6-カルボキシナフタレン等のヒドロキシナフトエ酸のエステル類;トリブロモメチルフェニルスルホン等のトリハロメチルスルホン類;ヒドロキシアセトフェノン、p-フェニルフェノール、4-ヒドロキシフェニル酢酸ベンジル、p-ベンジルフェノール、ハイドロキノン-モノベンジルエーテル、2,4-ジヒドロキシ-2’-メトキシベンズアニリド、テトラシアノキノジメタン類、N-(2-ヒドロキシフェニル)-2-[(4-ヒドロキシフェニル)チオ]アセタミド、N-(4-ヒドロキシフェニル)-2-[(4-ヒドロキシフェニル)チオ]アセタミド、4-ヒドロキシベンゼンスルホンアニリド、4’-ヒドロキシ-4-メチルベンゼンスルホンアニリド、3-(3-フェニルウレイド)ベンゼンスルホンアニリド、オクタデシルリン酸、ドデシルリン酸;4,4’-ビス(N-p-トリルスルホニルアミノカルボニルアミノ)ジフェニルメタン、N-p-トリルスルホニル-N’-3-(p-トリルスルホニルオキシ)フェニルウレア、N-(p-トリルスルホニル)-N’-フェニルウレア、3,3’-ビス(p-トリルスルホニルアミノカルボニルアミノ)ジフェニルスルホン等の非フェノール系スルホニルウレア系化合物;4,4’-ビス[3-(4-メチル-3-フェノキシカルボニルアミノフェニル)ウレイド]ジフェニルスルホン、3-(3-フェニルウレイド)ベンゼンスルホンアミド、ビス[4-(n-オクチルオキシカルボニルアミノ)サリチル酸]亜鉛2水和物、4-[2-(4-メトキシフェノキシ)エトキシ]サリチル酸亜鉛、3,5-ビス(α-メチルベンジル)サリチル酸亜鉛等の非フェノール系化合物;又は下記式で表されるジフェニルスルホン架橋型化合物若しくはそれらの混合物等が挙げられる。
本発明の記録材料において、発色性染料に対する顕色剤の使用割合は、発色性染料の1質量部に対し0.01~10質量部、さらに好ましくは0.5~10質量部の割合である。
ステアリン酸アミド、ステアリン酸アニリド、又はパルチミン酸アミド等の高級脂肪酸アミド類;ベンズアミド、アセト酢酸アニリド、チオアセトアニリド、アクリル酸アミド、エチレンビスアミド、オルトトルエンスルホンアミド、パラトルエンスルホンアミド等のアミド類;フタル酸ジメチル、イソフタル酸ジベンジル、イソフタル酸ジメチル、テレフタル酸ジメチル、イソフタル酸ジエチル、イソフタル酸ジフェニル、テレフタル酸ジベンジル等のフタル酸ジエステル類;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)、シュウ酸ジベンジルとシュウ酸ジ(4-クロロベンジル)の等量混合物、シュウ酸ジ(4-クロロベンジル)とシュウ酸ジ(4-メチルベンジル)の等量混合物等のシュウ酸ジエステル類;2,2’-メチレンビス(4-メチル-6-t-ブチルフェノール)、4,4’-メチレン-ビス(2,6-ジ-t-ブチルフェノール)等のビス(t-ブチルフェノール)類;1,2-ビス(フェノキシ)エタン(略称EGPE)、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、1,2-ビス(フェノキシメチル)ベンゼン、1,2-ビス(4-メトキシフェニルチオ)エタン、1,2-ビス(4-メトキシフェノキシ)プロパン、1,3-フェノキシ-2-プロパノール、1,4-ジフェニルチオ-2-ブテン、1,4-ジフェニルチオブタン、1,4-ジフェノキシ-2-ブテン、1,5-ビス(4-メトキシフェノキシ)-3-オキサペンタン、1,3-ジベンゾイルオキシプロパン、ジベンゾイルオキシメタン、4,4’-エチレンジオキシ-ビス-安息香酸ジベンジルエステル、ビス〔2-(4-メトキシ-フェノキシ)エチル〕エーテル、2-ナフチルベンジルエーテル、1,3-ビス(2-ビニルオキシエトキシ)ベンゼン、1,4-ジエトキシナフタレン、1,4-ジベンジルオキシナフタレン、1,4-ジメトキシナフタレン、1,4-ビス(2-ビニルオキシエトキシ)ベンゼン、p-(2-ビニルオキシエトキシ)ビフェル、p-アリルオキシビフェニル、p-プロパギルオキシビフェニル、p-ベンジルオキシベンジルアルコール、4-(m-メチルフェノキシメチル)ビフェニル、(4-メチルフェニル)フェニルエーテル、N,N’-ジ(2-ナフチル)-1,4-フェニレンジアミン、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、p-ターフェニル等のターフェニル類;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、4-アセチルビフェニル、ジベンゾイルメタン、トリフェニルメタン、1-ヒドロキシ-2-ナフトエ酸フェニル、1-ヒドロキシ-2-ナフトエ酸メチル、N-オクタデシルカルバモイル-p-メトキシカルボニルベンゼン、p-ベンジルオキシ安息香酸ベンジル、β-ナフトエ酸フェニル、p-ニトロ安息香酸メチル、ジフェニルスルホン;炭酸ジフェニル、グアイアコールカーボネート、ジ-p-トリルカーボネート、フェニル-α-ナフチルカーボネート等の炭酸誘導体;p-(ベンジルオキシ)ベンジルアルコール、1,3-ジフェノキシ-2-プロパノール、1,1-ジフェニルプロパノール、1,1-ジフェニルエタノール、ベンズヒドロール、2-メチルベンズヒドロール、4-メチルベンズヒドロール、4,4′-ジメチルベンズヒドロール等の芳香族アルコール類;N-オクタデシルカルバモイルベンゼン、ジベンジルジスルフィド、ステアリン酸、アマイドAP-1(ステアリン酸アミドとパルミチン酸アミドの7:3混合物);ステアリン酸アルミニウム、ステアリン酸カルシウム、ステアリン酸亜鉛等のステアリン酸塩類;パルチミン酸亜鉛、ベヘン酸、ベヘン酸亜鉛、モンタン酸ワックス、ポリエチレンワックス等が挙げられる。
増感剤の種類によっては、記録シートの画像耐熱性等がやや劣る場合があるが、本発明の記録シートでは、式(I)で表される化合物をさらに併用することによってそのような問題を解決することもできる。
増感剤の使用量は、感熱記録層の全固型量のうち、1~40質量%の範囲が好ましく、5~25質量%の範囲がより好ましく、8~20質量%の範囲がさらに好ましい。
なお、画像安定剤は好ましくは常温で固体であり、特に好ましくは融点が60℃以上であり、水に溶けにくい化合物である。
画像安定剤は、成分(C)1質量部に対して、0.2~0.5質量部の範囲で用いるのが好ましい。
また、画像安定剤は感熱記録層の全固型量のうち、1~30質量%の範囲で使用するのが好ましく、5~20質量%の範囲で使用するのがより好ましい。
また、填料は感熱記録層の全固型量のうち、50質量%以下で使用するのが好ましく、さらに30質量%以下で使用するのが好ましい。
分散剤は水、アルコール、ケトン、エステル、炭化水素等の溶剤に溶かして使用するほか、水又は他の溶媒中に乳化あるいはペースト状に分散させた状態で使用することも可能である。
分散剤は、感熱記録層の全固型分量のうち、5~50質量%の範囲で使用するのが好ましく、10~40質量%の範囲で使用するのがより好ましい。
本発明の記録シートは、前記のいずれかの記録材料から形成されてなる記録材料層を有する記録シートである。
アンダーコート層分散液は、支持体の表面の平滑性を向上させるために用いるのであって、特に限定されるものではないが、填料、分散剤、水が含まれる方がよく、具体的には、填料としては焼成カオリン又は炭酸カルシウム、分散剤としてはポリビニルアルコールが好ましい。
1)感熱記録紙の作製
[実施例1-1]
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
顕色剤分散液(B液)
N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミド
II型結晶 16部
ポリビニルアルコール10%水溶液 84部
填料分散液(C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
添加剤分散液(D液)
4,4’-ジアミノ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
(部は質量部)
A~D液の各組成の混合物をそれぞれサンドグラインダーで充分に磨砕して、A~D液の各成分の分散液を調製した。
実施例1-1と同じA~C液の各成分の分散液を使用し、A液1質量部、B液3質量部、C液3質量部を混合して発色層用塗布液とした。白色紙上に、実施例1-1と同様に発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例1-1と同じA、C及びD液の各成分の分散液を使用し、A液1質量部、C液3質量部、D液3質量部を混合して発色層用塗布液とした。白色紙上に、実施例1-1と同様に発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例1-1と同じA~D液の各組成の分散液を使用し、A液1質量部、B液2質量部、C液3質量部、D液1質量部を混合して発色層用塗布液とした。白色紙上に、まずC液をワイヤーロッド(Webster社製、ワイヤーバーNO.12)を使用して塗布・乾燥してアンダーコート層を作製した。次にアンダーコート層上に実施例1-1と同様に発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
顕色剤分散液(B’液)
N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミド
I型結晶 16部
ポリビニルアルコール10%水溶液 84部
(部は質量部)
B’液の組成の混合物をサンドグラインダーで充分に磨砕して、B’液の成分の分散液を調製した。
白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例2-1と同じA~D液の各組成の分散液を使用し、A液1質量部、B液1.8質量部、C液4質量部、D液0.2質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例2-2と同じA、B’、C及びD液の各成分の分散液を使用し、A液1質量部、B’液1.8質量部、C液4質量部、D液0.2質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例2-3と同様に、発色層用塗布液の調製、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例2-4と同様に、発色層用塗布液の調製、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
増感剤分散液(E液)
EGPE 16部
ポリビニルアルコール10%水溶液 84部
(部は質量部)
E液の組成の混合物をサンドグラインダーで充分に磨砕して、E液の成分の分散液を調製した。
実施例2-2と同じA、B’、C、D液、及び実施例3-3と同じE液の各成分の分散液を使用し、A液1質量部、B’液1.8質量部、C液4質量部、D液0.2質量部、E液1質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例1-1と同じA~D液、及び実施例3-3と同じE液の各成分の分散液を使用し、A液1質量部、B液1.7質量部、C液4質量部、D液0.3質量部、E液1質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例1-1と同じA~D液、及び実施例3-3と同じE液の各成分の分散液を使用し、A液1質量部、B液1.6質量部、C液4質量部、D液0.4質量部、E液1質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
実施例1-1と同じA~D液、及び実施例3-3と同じE液の各成分の分散液を使用し、A液1質量部、B液1.5質量部、C液4質量部、D液0.5質量部、E液1質量部を混合して発色層用塗布液とした。白色紙上に、実施例2-1と同様に、アンダーコート層の作製、次いで発色層用塗布液の塗布、乾燥、カレンダー掛け処理をして、感熱記録紙を作製した(発色層用塗布液は乾燥質量で約5.5g/m2)。
各評価サンプルに関して、試験前後の各試験紙について以下の各条件で保存性試験を行った。その結果を表2-1及び2-2に示した。
各感熱記録紙の一部を切り取り、地肌の光学濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、恒温器(商品名:DK-400、YAMATO製)中で90℃、100℃の各温度で24時間保持した。保持した後の地肌の光学濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、低温恒温恒湿器(商品名:THN050FA、ADVANTEC製)中で温度40℃、湿度90%の条件で24時間保持した。試験後の光学濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各評価サンプルに関して、発色させた画像について以下の各条件で保存性試験を行った。その結果を表3-1~3-3に示した。
各感熱記録紙の一部を切り取り、感熱紙発色試験装置(商品名: TH-PMH型、大倉電機製)を使用し、印字電圧17V、パルス幅1.8msの条件で発色させ、発色画像濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、試験前と同様にして飽和発色させた。次いで、恒温器(商品名:DK-400、YAMATO製)中で80℃、90℃、100℃の各温度で24時間保持した。試験後の光学濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、試験前と同様にして飽和発色させた。次いで、低温恒温恒湿器(商品名:THN050FA、ADVANTEC製)中で温度40℃、湿度90%の条件で24時間保持した。試験後の光学濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、試験前と同様にして飽和発色させた。次いで、各試験紙の発色面及び裏面に塩化ビニルラップフィルム(可塑剤が含まれているもの)を密着させそのまま40℃で4時間保持した。試験後の発色画像濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
各感熱記録紙の一部を切り取り、試験前と同様にして飽和発色させた。次いで、サラダオイル中に浸漬し、室温で1時間後の発色画像濃度を分光測色計(SpectroeyeLT、X-rite社製)で測定した。
Claims (9)
- (A)発色性染料の少なくとも1種、
(B)下記式(I)
で表される化合物からなる群から選ばれる少なくとも1種、及び
(C)下記式(II)
(式中、R及びR’は、水素原子、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、C1~C6ハロアルキル基、N(R4)2基(式中、R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す)、AR5(式中、Aは、SO2-NH、NH-SO2、CO-NH、又はNH-COで表される基を表し、R5は、置換基を有してもよいC1~C6アルキル基、置換基を有してもよいフェニル基、置換基を有してもよい1-ナフチル基、又は置換基を有してもよい2-ナフチル基を表す)、置換基を有してもよいフェニル基、又は置換基を有してもよいベンジル基を表し、n及びn’は、それぞれ独立して、1~5のいずれかの整数を表し、XはO又はSを表す)で表される化合物からなる群から選ばれる少なくとも1種、
を含有することを特徴とする記録材料。 - 前記式(II)で表される化合物が、
下記式(III)
(式中、R1~R3は、水素原子、ハロゲン原子、ニトロ基、C1~C6アルキル基、C1~C6アルコキシ基、C2~C6アルケニル基、C1~C6ハロアルキル基、N(R4)2基(式中、R4は水素原子、フェニル基、ベンジル基、又はC1~C6アルキル基を表す)、NHCOR6(式中、R6は、C1~C6アルキル基を表す)、置換基を有してもよいフェニル基、又は置換基を有してもよいベンジル基を表し、n1及びn3は、それぞれ独立して、1~5のいずれかの整数を表し、n2は、1~4のいずれかの整数を表し、A1は、SO2-NH、NH-SO2、CO-NH、又はNH-COで表される基を表し、Xは式(II)におけるXと同じものを表す)で表される化合物、
下記式(IV)
(式中、R1~R3は、式(III)におけるR1~R3と同じものを表し、n2及びn3は、式(III)におけるn2及びn3と同じものを表し、n4は、1~7のいずれかの整数を表し、A1は式(III)におけるA1と同じものを表し、Xは式(II)におけるXと同じものを表す)で表される化合物、及び
下記式(V)
(式中、R1~R3は、式(III)におけるR1~R3と同じものを表し、n2、n3及びn4は、式(IV)におけるn2、n3及びn4と同じものを表し、A1は式(III)におけるA1と同じものを表し、Xは式(II)におけるXと同じものを表す)で表される化合物
からなる群から選ばれる少なくとも1種、
であることを特徴とする、請求項1に記載の記録材料。 - 前記式(I)で表される化合物が、4,4’-ジアミノジフェニルスルホン、及び3,3’-ジアミノジフェニルスルホンの少なくとも1種である、請求項1又は2に記載の記録材料。
- 前記式(III)、式(IV)又は式(V)で表される化合物において、A1がSO2-NHであり、XがOである、請求項2又は3に記載の記録材料。
- 前記式(VI)で表される化合物が、N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドである、請求項5に記載の記録材料。
- N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドが、Cu-Kα線による粉末X線回折法における回折角(2θ±0.10度)が23.60度、20.80度、12.24度及び13.80度にピークを示すX線回折図により特徴づけられる結晶形のものである、請求項6に記載の記録材料。
- 発色性染料が、フルオラン系染料であることを特徴とする、請求項1~7のいずれかに記載の記録材料。
- 支持体上に請求項1~8のいずれかに記載の記録材料から形成されてなる記録材料層を有することを特徴とする記録シート。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020197003143A KR102258134B1 (ko) | 2016-08-24 | 2017-08-21 | 기록 재료 및 기록 시트 |
| ES17843515T ES2922629T3 (es) | 2016-08-24 | 2017-08-21 | Material de registro y hoja de registro |
| BR112019003249-5A BR112019003249B1 (pt) | 2016-08-24 | 2017-08-21 | Material e folha para registro |
| EP17843515.2A EP3505357B1 (en) | 2016-08-24 | 2017-08-21 | Recording material and recording sheet |
| JP2018535655A JP6754838B2 (ja) | 2016-08-24 | 2017-08-21 | 記録材料及び記録シート |
| CN201780051146.0A CN109641472B (zh) | 2016-08-24 | 2017-08-21 | 记录材料及记录片材 |
| US16/323,422 US11142015B2 (en) | 2016-08-24 | 2017-08-21 | Recording material, and recording sheet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016164088 | 2016-08-24 | ||
| JP2016-164088 | 2016-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018038035A1 true WO2018038035A1 (ja) | 2018-03-01 |
Family
ID=61245173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2017/029728 Ceased WO2018038035A1 (ja) | 2016-08-24 | 2017-08-21 | 記録材料及び記録シート |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11142015B2 (ja) |
| EP (1) | EP3505357B1 (ja) |
| JP (1) | JP6754838B2 (ja) |
| KR (1) | KR102258134B1 (ja) |
| CN (1) | CN109641472B (ja) |
| BR (1) | BR112019003249B1 (ja) |
| ES (1) | ES2922629T3 (ja) |
| TW (1) | TWI671282B (ja) |
| WO (1) | WO2018038035A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020040287A (ja) * | 2018-09-11 | 2020-03-19 | 日本化薬株式会社 | 感熱記録材料 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019132401B3 (de) * | 2019-11-28 | 2021-02-18 | Papierfabrik August Koehler Se | Polymorphe Formen von N-(4-((4-(3-Phenylureido)phenyl)sulfonyl)phenyl)benzosulfonamid |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02235682A (ja) | 1989-03-08 | 1990-09-18 | Kanzaki Paper Mfg Co Ltd | 感熱記録体 |
| JPH0648041A (ja) * | 1992-03-24 | 1994-02-22 | Fuji Photo Film Co Ltd | 感熱記録材料 |
| JPH06171233A (ja) | 1992-12-11 | 1994-06-21 | Fuji Photo Film Co Ltd | 感熱記録材料 |
| JPH06191154A (ja) | 1992-12-24 | 1994-07-12 | New Oji Paper Co Ltd | 感熱記録材料 |
| JPH1192448A (ja) | 1997-09-16 | 1999-04-06 | Nippon Paper Industries Co Ltd | 新規なチオ尿素化合物及びそれを用いた感熱記録体 |
| JPH11268421A (ja) | 1998-03-23 | 1999-10-05 | Nippon Paper Industries Co Ltd | 感熱記録体 |
| WO2014080615A1 (ja) | 2012-11-21 | 2014-05-30 | 日本曹達株式会社 | 非フェノール系化合物を用いた記録材料 |
| WO2014143174A1 (en) | 2013-03-14 | 2014-09-18 | Appvion, Inc. | Thermally-responsive record material |
| WO2016052592A1 (ja) | 2014-09-30 | 2016-04-07 | 日本化薬株式会社 | 感熱記録材料 |
| WO2016125460A1 (ja) * | 2015-02-04 | 2016-08-11 | 日本曹達株式会社 | 記録材料及び記録シート |
| WO2016136203A1 (ja) * | 2015-02-25 | 2016-09-01 | 日本曹達株式会社 | N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドの結晶変態及びそれを用いた記録材料 |
| JP2016164088A (ja) | 2016-06-13 | 2016-09-08 | 凸版印刷株式会社 | シュリンクフィルム付台紙およびその製造方法 |
| JP2017052175A (ja) * | 2015-09-09 | 2017-03-16 | 日本化薬株式会社 | 感熱記録材料 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464804A (en) | 1992-03-24 | 1995-11-07 | Fuji Photo Film Co., Ltd. | Thermal recording material |
| DE69942029D1 (de) | 1998-09-04 | 2010-04-01 | Chemipro Kasei Kaisha Ltd | Farbentwicklungsverbindung und aufzeichnungsmaterial |
| US7635662B2 (en) | 1998-09-04 | 2009-12-22 | Chemipro Kasei Kaisha, Ltd. | Compound for color-producing composition, and recording material |
| CN1303064C (zh) | 2000-03-02 | 2007-03-07 | 旭化成株式会社 | 新型生色组合物和记录材料 |
| US8916497B2 (en) * | 2013-03-14 | 2014-12-23 | Appvion, Inc. | Thermally-responsive record material |
| US8916496B2 (en) | 2013-03-14 | 2014-12-23 | Appvion, Inc. | Thermally-responsive record material |
| JP5967013B2 (ja) * | 2013-05-10 | 2016-08-10 | 王子ホールディングス株式会社 | 感熱記録体 |
| WO2014189044A1 (ja) * | 2013-05-22 | 2014-11-27 | 王子ホールディングス株式会社 | 感熱記録体 |
| JP2017205938A (ja) * | 2016-05-18 | 2017-11-24 | 日本化薬株式会社 | 感熱記録材料 |
| EP3305538A1 (de) * | 2016-10-07 | 2018-04-11 | Mitsubishi HiTec Paper Europe GmbH | Wärmeempfindliches aufzeichnungsmaterial |
| US10882348B2 (en) * | 2016-10-07 | 2021-01-05 | Mitsubishi Hitec Paper Europe Gmbh | Heat-sensitive recording material |
| JP2018062083A (ja) * | 2016-10-11 | 2018-04-19 | 日本化薬株式会社 | 感熱記録材料 |
-
2017
- 2017-08-21 JP JP2018535655A patent/JP6754838B2/ja active Active
- 2017-08-21 CN CN201780051146.0A patent/CN109641472B/zh active Active
- 2017-08-21 WO PCT/JP2017/029728 patent/WO2018038035A1/ja not_active Ceased
- 2017-08-21 BR BR112019003249-5A patent/BR112019003249B1/pt active IP Right Grant
- 2017-08-21 US US16/323,422 patent/US11142015B2/en active Active
- 2017-08-21 KR KR1020197003143A patent/KR102258134B1/ko active Active
- 2017-08-21 ES ES17843515T patent/ES2922629T3/es active Active
- 2017-08-21 EP EP17843515.2A patent/EP3505357B1/en active Active
- 2017-08-22 TW TW106128407A patent/TWI671282B/zh active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02235682A (ja) | 1989-03-08 | 1990-09-18 | Kanzaki Paper Mfg Co Ltd | 感熱記録体 |
| JPH0648041A (ja) * | 1992-03-24 | 1994-02-22 | Fuji Photo Film Co Ltd | 感熱記録材料 |
| JPH06171233A (ja) | 1992-12-11 | 1994-06-21 | Fuji Photo Film Co Ltd | 感熱記録材料 |
| JPH06191154A (ja) | 1992-12-24 | 1994-07-12 | New Oji Paper Co Ltd | 感熱記録材料 |
| JPH1192448A (ja) | 1997-09-16 | 1999-04-06 | Nippon Paper Industries Co Ltd | 新規なチオ尿素化合物及びそれを用いた感熱記録体 |
| JPH11268421A (ja) | 1998-03-23 | 1999-10-05 | Nippon Paper Industries Co Ltd | 感熱記録体 |
| WO2014080615A1 (ja) | 2012-11-21 | 2014-05-30 | 日本曹達株式会社 | 非フェノール系化合物を用いた記録材料 |
| WO2014143174A1 (en) | 2013-03-14 | 2014-09-18 | Appvion, Inc. | Thermally-responsive record material |
| WO2016052592A1 (ja) | 2014-09-30 | 2016-04-07 | 日本化薬株式会社 | 感熱記録材料 |
| WO2016125460A1 (ja) * | 2015-02-04 | 2016-08-11 | 日本曹達株式会社 | 記録材料及び記録シート |
| WO2016136203A1 (ja) * | 2015-02-25 | 2016-09-01 | 日本曹達株式会社 | N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドの結晶変態及びそれを用いた記録材料 |
| JP2017052175A (ja) * | 2015-09-09 | 2017-03-16 | 日本化薬株式会社 | 感熱記録材料 |
| JP2016164088A (ja) | 2016-06-13 | 2016-09-08 | 凸版印刷株式会社 | シュリンクフィルム付台紙およびその製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3505357A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020040287A (ja) * | 2018-09-11 | 2020-03-19 | 日本化薬株式会社 | 感熱記録材料 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3505357A1 (en) | 2019-07-03 |
| KR20190022860A (ko) | 2019-03-06 |
| EP3505357B1 (en) | 2022-06-29 |
| CN109641472A (zh) | 2019-04-16 |
| TWI671282B (zh) | 2019-09-11 |
| EP3505357A4 (en) | 2020-04-29 |
| KR102258134B1 (ko) | 2021-05-27 |
| BR112019003249B1 (pt) | 2022-10-18 |
| US20200180335A1 (en) | 2020-06-11 |
| JP6754838B2 (ja) | 2020-09-16 |
| BR112019003249A2 (pt) | 2019-06-18 |
| JPWO2018038035A1 (ja) | 2019-06-20 |
| ES2922629T3 (es) | 2022-09-19 |
| US11142015B2 (en) | 2021-10-12 |
| TW201825455A (zh) | 2018-07-16 |
| CN109641472B (zh) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016136203A1 (ja) | N-(2-(3-フェニルウレイド)フェニル)ベンゼンスルホンアミドの結晶変態及びそれを用いた記録材料 | |
| JP6388459B2 (ja) | 記録材料及び記録シート | |
| KR102258134B1 (ko) | 기록 재료 및 기록 시트 | |
| JP2018103469A (ja) | 記録材料及び記録シート | |
| JP5258909B2 (ja) | フェノール性化合物および記録材料 | |
| JP6714107B2 (ja) | 記録材料及び記録シート | |
| JP6162204B2 (ja) | フェノール性化合物を用いた記録材料 | |
| WO2011039987A1 (ja) | フェノール性化合物を用いた記録材料 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17843515 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2018535655 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20197003143 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112019003249 Country of ref document: BR |
|
| ENP | Entry into the national phase |
Ref document number: 2017843515 Country of ref document: EP Effective date: 20190325 |
|
| ENP | Entry into the national phase |
Ref document number: 112019003249 Country of ref document: BR Kind code of ref document: A2 Effective date: 20190218 |