Compound for color-producing composition, and recording material

A color-producing composition comprising a developer and a colorless or light-colored dye precursor, wherein the colorless or light-colored dye precursor is a leuco dye and develops color upon contact with said developer;

• wherein said developer is a urea-urethane compound represented by the following formula (I):
• wherein Y0 is a group selected from the group consisting of tolylene group, xylylene group, naphthylene group, hexamethylene group and -φ-CH2-φ- group wherein -φ- is a phenylene group;
• or said developer is a urea-urethane compound represented by the following formula (II):
• or said developer is a urea-urethane compound represented by the following formula (III):
• wherein α is a residue other than amino groups of an amine compound selected from the group consisting of:
• 4,4′-diamino-3,3′-diethyldiphenylmethane, 4,4′-diaminobenzanilide, 3,5-diaminochlorobenzene, diaminodiphenyl ether, 3,3′-dichloro-4,4-diaminodiphenylmethane, 3,3′-dimethyl-4,4′-diaminodiphenylmethane, 3,3′-dimethyl-4,4-diaminobiphenyl, dianisidine, bis[4-(m-aminophenoxy)phenyl]sulfone, bis[4-(p-aminophenoxy)phenyl]sulfone, bis[3-methyl-4-(p-aminophenoxy)phenyl]sulfone, 3,3′-dimethoxy-4,4′-diaminobiphenyl, 3,3′-dimethyl-4,4′-diaminobiphenyl, 2,2′-dichloro-4,4′-diamino-5,5′-dimethoxybiphenyl, 2,2′,5,5′-tetrachloro-4,4′-diaminobiphenyl,o-tolidine sulfone, 2,4′-diaminobiphenyl, 2,2′-diaminobiphenyl, 4,4′-diaminobiphenyl, 2,2′-dichloro-4,4′-diaminobiphenyl, 3,3′-dichloro-4,4′diaminobiphenyl, 2,2′-dimethyl-4,4′-diaminobiphenyl, 4,4′-thiodianiline, 2,2′-dithiodianiline, 4,4′-dithiodianiline, 4,4′-diaminodiphenyl ether, 3,3′-diaminodiphenyl ether, 3,4′-diaminodiphenyl ether, 4,4′-diaminodiphenylmethane, 3,4′-diaminodiphenylmethane, bis(3-amino-4-chlorophenyl)sulfone, bis(3,4-diaminophenyl)sulfone, 4,4′-diaminodiphenyl sulfone, 3,3′-diaminodiphenyl sulfone, 3,4′-diaminodiphenyl sulfone, 3,3′-diaminodiphenylmethane, 4,4′-diaminodiphenylamine, 4,4′-ethylenedianiline, 4,4′-diamino-2,2′-dimethyldibenzyl, 3,3′-diaminobenzophenone, 4,4′-diaminobenzophenone, 1,4-bis(4-aminophenoxy)benzene, 1,3-bis(4-aminophenoxy)benzene, 1,3-bis(3-aminophenoxy)benzene, 9,9-bis(4-aminophenyl)fluorene, 2,2-bis(4-aminophenoxy-phenyl)propane, 4,4′-bis(4-aminophenoxy)diphenyl, 3,3′-dichlorobenzidine, o-phenylenediamine, m-phenylenediamine, p-phenylenediamine,
• and n is an integer of 2 or more depending on the valence number of α;
• or said developer is a urea-urethane compound represented by the following formula (IV):
• wherein β is a residue other than hydroxyl groups of a hydroxy compound selected from the group consisting of:
• 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(hydroxyphenyl)butane, 2,2-bis(hydroxyphenyl)pentane, 2,2-bis(hydroxyphenyl)heptane, catechol, 3-methylcatechol, 3-methoxycatechol, pyrogallol, hydroquinone, methylhydroquinone, p,p′-biphenol, butyl bis(4-hydroxyphenyl)acetate, benzyl bis(4-hydroxyphenyl)acetate, bis(4-hydroxyphenyl)sulfone, bis(3-methyl-4-hydroxyphenyl)sulfone, bis(3,5-dimethyl-4-hydroxyphenyl)sulfone, 3,4-dihydroxyphenyl-4′-methylphenyl sulfone, bis(2-allyl-4-hydroxyphenyl)sulfone, bis(2-methyl-3-tert-butyl-4-hydroxyphenyl)sulfide, 4,4′-dihydroxydiphenyl ether, 4,4′-thiodiphenol, 4,4′-dihydroxybenzophenone, 2,2-bis(4-hydroxyphenyl)hexafluoropropane, 4,4′-dihydroxyldiphenylmethane, 3,3′-dihydroxydiphenylamine, bis(4-hydroxy-3-methylphenyl)sulfide, polypropylene glycols, polytetramethylene ether glycols, polyether ester polyols, polycarbonate polyols, polycaprolactone diols, phenolic polyols, ethylene glycol, diethylene glycol, 1,3-propanediol, 1,2-propanediol, propylene glycol, dipropylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,6-hexane glycol, 1,9-nonanediol, acryl polyols, fluorocarbon polyols, polybutadiene polyols, polyhydroxy polyols, trimethylolpropane, trimethylolethane, hexanetriol, phosphoric acid, neopentyl glycol, pentaerythritol, methylpentanediol, ethylenediamine, α-methylglucoside, sorbitol, and sucrose,
• and n is an integer of 2 or more depending on the valence number of β;
• or said developer is a urea-urethane compound represented by the following formula (VII):
• wherein said X is an hydroxy compound bound through the hydroxy group, wherein said hydroxy compound is at least one selected from the group consisting of phenol, cresol, xylenol, p-ethylphenol, o-isopropylphenol, resorcinol, p-tert-butylphenol, p-tert-octylphenol, 2-cyclohexylphenol, 2-allylphenol, 4-indanol, thymol, 2-naphthol, p-nitrophenol, o-chlorophenol, p-chlorophenol, 2,2-bis(4-hydroxyphenyl)-propane, 2,2-bis(hydroxyphenyl)butane, 2,2-bis(hydroxy-phenyl)pentane, 2,2-bis(hydroxyphenyl)heptane, catechol, 3-methylcatechol, 3-methoxycatechol, pyrogallol, hydroquinone, methylhydroquinone, 4-phenylphenol, p,p′-biphenol, 4-cumylphenol, butyl bis(4-hydroxyphenyl)acetate, benzyl bis(4-hydroxyphenyl)acetate, bis(4-hydroxyphenyl)sulfone, bis(3-methyl-4-hydroxyphenyl)sulfone, bis(3,5-dimethyl-4-hydroxyphenyl)sulfone, 4-hydroxyphenyl-4′-methylphenyl sulfone, 3-chloro-4-hydroxyphenyl-4-methylphenyl sulfone, 3,4-dihydroxyphenyl-4′-methylphenyl sulfone, 4-isopropyloxyphenyl-4′-hydroxyphenyl sulfone, bis(2-allyl-4-hydroxyphenyl)sulfone, 4-hydroxyphenyl-4′-benzyloxyphenyl sulfone, 4-isopropylphenyl-4′-hydroxyphenyl sulfone, 4hydroxy-4′-isopropoxydiphenyl sulfone, bis(2-methyl-3-tert-butyl-4-hydroxyphenyl)sulfide, 4,4′-dihydroxydiphenyl ether, 4,4′-thiodiphenol, 4,4′-dihydroxybenzophenone, 2,2-bis(4-hydroxyphenyl)hexafluoropropane, 4,4′-dihydroxydiphenylmethane, 3,3′-dihydroxydiphenylamine, bis(4-hydroxy-3-methylphenyl)sulfide, bis(4-(2-hydroxy)phenyl)sulfone, 2,4-dihydroxybenzophenone, 2,2′,4,4′-tetrahydroxybenzophenone, phenyl salicylate, salicylanilide, methyl 4-hydroxybenzoate, benzyl 4-hydroxybenzoate, (4′-chlorobenzyl)4-hydroxybenzoate, ethyl 1,2-bis(4′-hydroxybenzoate), pentyl 1,5-bis(4′-hydroxybenzoate), hexyl 1,6-bis(4′-hydroxybenzoate), dimethyl 3-hydroxyphthalate, stearyl gallate, lauryl gallate, methyl gallate, 4-methoxyphenol, 4-(benzyloxy)phenol, 4-hydroxybenzaldehyde, 4-n-octyloxysalicylic acid, 4-n-butyloxysalicylic acid, 4-n-pentyloxysalicylic acid, 3-n-dodecyloxysalicylic acid, 3-n-octanoyloxysalicylicacid,4-n-octyloxycarbonylaminosalicylicacid,-4-n-octanoyloxy-carbonylaminosalicylic acid, methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, octanol, isopropanol, isobutanol, isoheptanol, 2-ethyl-1-hexanol, 1-decanol, 2-pentanol, 3-hexanol, tert-butanol, tert-amyl alcohol, methyl Cellosolve, butyl Cellosolve, methyl Carbitol, allyl alcohol, 2-methyl-2-propen-1-ol, benzyl alcohol, 4-pyridinemethanol, phenyl Cellosolve, furfuryl alcohol, cyclohexanol, cyclohexylmethanol, cyclopentanol, 2-chloroethanol, 1-chloro-3-hydroxypropane, glycerin, glycerol, polypropylene glycol, polytetramethylene ether glycol, polyether ester polyol, polycarbonate polyol, polycaprolactone diol, phenolic polyol, ethylene glycol, diethylene glycol, 1,3-propanediol, 1,2-propanediol, propylene glycol, dipropylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,6-hexane glycol, 1,9-nonanediol, acryl polyol, fluorocarbon polyol, polybutadiene polyol, polyhydroxy polyol, trimethylolpropane, trimethylolethane, hexanetriol, phosphoric acid, neopentyl glycol, pentaerythritol, methylpentanediol, α-methylglucoside, sorbitol, and sucrose;
• said Y is an isocyanato compound bound through the isocyanato group, wherein said isocyanate having at least two isocyanate groups is at least one selected from the group consisting of p-phenylene diisocyanate, 2,5-dimethoxybenzene-1,4-diisocyanate, 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, diphenylmethane diisocyanate, o-tolidine diisocyanate, diphenyl ether diisocyanate, 1,5-naphthylene diisocyanate, dianisidine diisocyanate, 9-ethylcarbazole-3,6-diisocyanate, 3,3′-dimethyl-4,4′-diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, triphenylmethane triisocyanate, tris(4-phenylisocyanate) thiophosphate, 4,4′,4″-triisocyanato-2,5-dimethoxytriphenylamine, 4,4′,4″-triisocyanatotriphenylamine, m-xylylene diisocyanate, lysine diisocyanate, dimer acid diisocyanate, isopropylidene bis-4-cyclohexylisocyanate, dicyclohexylmethane diisocyanate, methylcyclohexane diisocyanate, N,N′-(4,4′-dimethyl-3,3′-diphenyldiisocyanato)urethodione, 4,4′,4″-trimethyl-3,3′,3″-triisocyanato-2,4,6-triphenylcyanurate, water adduct of toluene diisocyanate, water adduct of diphenylmethane diisocyanate, 1,3-bis(3-isocyanato-4-methylphenyl)urea, trimethyloipropane adduct of toluene diisocyanate, and an amine adduct of toluene diisocyanate;
• and
• said Z is an amino compound bound through the amino group, wherein said amino compound is at least one selected from the group consisting of aniline, o-toluidine, m-toluidine, p-toluidine, o-anisidine, p-anisidine, p-phenetidine, N,N-dimethylaniline, N,N-diethylaniline, N,N-dimethyl-p-phenylenediamine, N,N-diethyl-p-phenylene-diamine, 2,4-dimethoxyaniline, 2,5-dimethoxyaniline, 3,4-dimethoxyaniline, p-aminoacetanilide, p-aminobenzoic acid, o-aminophenol, m-aminophenol, p-aminophenol, 2,3-xylidine, 2,4-xylidine, 3,4-xylidine, 2,6-xylidine, 4-aminobenzonitrile, anthranilic acid, p-cresidine, 2,5-dichloroaniline, 2,6-dichloroaniline, 3,4-dichloroaniline, 3,5-dichloroaniline, 2,4,5-trichloroaniline, α-naphthylamine, aminoanthracene, o-ethylaniline, o-chloroaniline, m-chloroaniline, p-chloroaniline, N-methylaniline, N-ethylaniline, N-propylaniline, N-butylaniline, N,N-diglycidylaniline, N,N-diglycidyl-o-toluidine, acetoacetic acid anilide, trimethylphenyl-ammonium bromide, 4,4′-diamino-3,3′-diethyldiphenylmethane, 4,4′-diaminobenzanilide, 3,5-diaminochlorobenzene, diaminodiphenyl ether, 3,3′-dichloro-4,4′-diaminodiphenylmethane, 3,3′-dimethyl-4,4′-diaminodiphenylmethane, tolidine base, o-phenylenediamine, m-phenylenediamine, p-phenylenediamine, 2-chloro-p-phenylenediamine, dianisidine, methyl p-aminobenzoate, ethyl p-aminobenzoate, n-propyl p-aminobenzoate, isopropyl p-aminobenzoate, butyl p-aminobenzoate, dodecyl p-aminobenzoate, benzyl p-aminobenzoate, o-aminobenzophenone, m-ammoacetophenone, p-aminoacetophenone, m-aminobenzamide, o-aminobenzamide, p-aminobenzamide, p-amino-N-methylbenzamide, 3-amino-4-methylbenzamide, 3-amino-4-methoxybenzamide, 3-amino-4-chlorobenzamide, p-(N-phenylcarbamoyl)aniline, p-[N-(4-chlorophenyl)-carbamoyl]aniline, p-[N-(4-aminophenyl)carbamoyl]aniline, 2-methoxy-5-(N-phenylcarbamoyl)aniline, 2-methoxy-5-[N-(2′-methyl-3′-chlorophenyl)carbamoyl]aniline, 2-methoxy-5-[N-(2′-chlorophenyl)carbamoyl]-aniline, 5-acetylamino-2-methoxyaniline, 4-acetylaminoaniline, 4(N-methyl-N-acetylamino)aniline, 2,5-diethoxy-4-(N-benzoylamino)aniline, 2,5-dimethoxy-4-(N-benzoylamino)aniline, 2-methoxy-4-(N-benzoylamino)-5-methylaniline, 4-sulfamoylaniline, 3-sulfamoylaniline, 2-(N-ethyl-N-phenylaminosulfonyl)aniline, 4-dimethylaminosulfonylaniline, 4-diethylaminosulfonylaniline, sulfathiazole, 4-aminodiphenyl sulfone, 2-chloro-5-N-phenylsulfamoylaniline, 2-methoxy-5-N,N-diethylsulfamoylaniline, 2,5-dimethoxy-4-N-phenysulfamoylaniline, 2-methoxy-5-benzylsulfonylaniline, 2-phenoxysulfonylaniline, 2-(2′-chlorophenoxy)sulfonylaniline, 3-anilinosulfonyl-4-methylaniline, bis[4-(m-aminophenoxy)phenyl]sulfone, bis[4-(p-aminophenoxy)phenyl]sulfone, bis[3-methyl-4-(p-aminophenoxy)phenyl]sulfone, 3,3′-dimethoxy-4,4′-diaminobiphenyl, 3,3′-dimethyl-4,4′-diaminobiphenyl, 2,2′-dichloro-4,4′-diamino-5,5′-dimethoxybiphenyl, 2,2′,5,5′-tetrachloro-4,4′-diaminobiphenyl, o-tolidine sulfone, 2,4′-diaminobiphenyl, 2,2′-diaminobiphenyl, 4,4′-diaminobiphenyl, 2,2′-dichloro-4,4′-diaminobiphenyl, 3,3′-dichloro-4,4′-diaminobiphenyl, 2,2′-dimethyl-4,4′-diaminobiphenyl, 4,4′-thiodianiline, 2,2′-dithiodianiline, 4,4′-dithiodianiline, 4,4′-diaminodiphenyl ether, 3,3′-diaminodiphenyl ether, 3,4′-diaminodiphenyl ether, 4,4′-diaminodiphenylmethane, 3,4′-diaminodiphenylmethane, bis(3-amino-4-chlorophenyl)sulfone, bis(3,4-diaminophenyl)sulfone, 4,4′-diaminodiphenyl sulfone, 3,3′-diaminodiphenyl sulfone, 3,4′-diaminodiphenyl sulfone, 3,3′-diaminodiphenylmethane, 4,4-diaminodiphenylamine, 4,4′-ethylenedianiline, 4,4′-diamino-2,2′-dimethyldibenzyl, 3,3′-diaminobenzophenone, 4,4′-diaminobenzophenone, 1,4-bis(4-aminophenoxy)benzene, 1,3-bis(4-aminophenoxy)benzene, 1,3-bis(3-aminophenoxy)benzene, 9,9-bis(4-aminophenyl)fluorene, 2,2-bis(4-aminophenoxy-phenyl)propane, 4,4′-bis(4-aminophenoxy)diphenyl, 3,3′,4,4′-tetraaminodiphenyl ether, 3,3′,4,4′-tetraaminodiphenyl sulfone, 3,3′,4,4′-tetraaminobenzophenone, 3-aminobenzonitrile, 4-phenoxyaniline, 3-phenoxyaniline, 4,4′-methylenebis-o-toluidine, 4,4′-(p-phenyleneisopropylidene)-bis-(2,6-xylidine), o-chloro-p-nitroaniline, o-nitro-p-chloroaniline, 2,6-dichloro-4-nitroaniline, 5-chloro-2-nitroaniline, 2-amino-4-chlorophenol, o-nitroaniline, m-nitroaniline, p-nitroaniline, 2-methyl-4-nitroaniline, m-nitro-p-toluidine, 2-amino-5-nitrobenzonitrile, Metol, 2,4-diaminophenol, N-(β-hydroxyethyl)-o-aminophenol sulfate, sulfanilic acid, metanilic acid, 2-amino-5-methylbenzenesulfonic acid, 2-amino-5-chloro-4-methylbenzenesulfoniz acid, 4-amino-2-chlorotoluene-5-sulfonic acid, p-fluoroaniline, o-fluoroaniline, 3-chloro-4-fluoroaniline, 2,4-difluoroaniline, 2,3,4-trifluoroaniline, m-aminobenzotrifluoride, m-toluylenediamine, 2-aminothiophenol, 2-amino-3-bromo-5-nitrobenzonitrile, diphenylamine, p-aminodiphenylamine, octylated diphenylamine, 2-methyl-4-methoxydiphenylamine, N,N-diphenyl-p-phenylenediamine, dianisidine, 3,3′-dichlorobenzidine, 4,4′-diaminostilbene-2,2′-disulfonic acid, benzylethylaniline, 1,8-naphthalenediarnine, sodium naphthionate, Tobias acid, sodium 1-amino-8-naphthol-3,6-disulfonate, 7-amino-4-hydroxy-2-naphthalene sulfonic acid, 6-phenylamino-1-naphthol-3-sulfonic acid, 1,4-diaminoanthraquinone, 1,4-diamino-2,3-dichloroanthraquinone, 3-amino-1,2,4-triazole, 2-aminopyridine, 3-aminopyridine, 4-aminopyridine, α-amino-ε-caprolactam, acetoguanamne, 2,4-diamino-6-[2′-methylimidazolyl-(1)]ethyl-S-triazine, 2,3-diaminopyridine, 2,5-diaminopyridine, 2,3,5-triaminopyridine, 1-amino-4-methylpiperazine, 1-(2-aminoethyl)piperazine, bis(aminopropyl)piperazine, N-(3-aminopropyl)morpholine, methylamine, ethylamine, dimethylamine, diethylamine, stearylamine, allylamine, diallylamine, isopropylamine, diisopropylamine, 2-ethyihexylamine, ethanolamine, 3-(2-ethylhexyloxy)propyiamine, 3-ethoxypropylamine, diisobutylamine, 3-(diethylamino)propylamine, di-2-ethylhexylamine, 3-(dibutylamino)propylamine, t-butylamine, propylamine, 3-(methylamino)propylamine, 3-(dimethylamino)propylamine, 3-methoxypropylamine, methylhydrazine, 1-methylbutylamine, methanediamine, 1,4-diaminobutane, cyclohexanemethylamine, cyclohexylamine, 4-methylcyclohexylamine, 2-bromoethylamine, 2-methoxyethylamine, 2-ethoxymethylamine, 2-amino-1-propanol, 2-aminobutanol, 3-amino-1,2-propanediol, 1,3-diamino-2-hydroxypropane, 2-aminoethanethiol, ethylenediamine, diethylenetriamine, and hexamethylenediamine.

A color-producing composition comprising a developer and a colorless or light-colored dye precursor,

• wherein the colorless or light-colored dye precursor is a leuco dye and develops color upon contact with said developer,
• wherein said developer is a urea-urethane compound represented by the formula (III):
• wherein
• said X independently represents a monovalent aromatic compound residue selected from the group consisting of Φ-, Φ-ε-Φ- and a naphthyl group,
• wherein said Φ- represents a phenyl group, and -Φ- represents a phenylene group, and these phenyl and phenylene groups can each independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an allyl group, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, a cyclohexyl group, a hydroxyl group, a nitro group, and a chlor group, said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —S—, —CH2—, —CO—, —CONH—, —CH(COOR1)—, and —CR2R3—, wherein R1, R2 and R3 each represent an alkyl group having 1 to 4 carbon atoms,
• or said X independently represents a monovalent aliphatic compound residue selected from the group consisting of R1—, A-(OR2′)m-, an allyl group, a methallyl group, a cyclohexyl group, and a benzyl group, wherein R1- represents an alkyl group having 1 to 10 carbon atoms, A- represents an alkyl group having 1 to 4 carbon atoms or a phenyl group, R2′ represents an ethylene group or a propylene group, and m is an integer of 1 or 2,
• said Y independently represents a divalent aromatic compound residue selected from the group consisting of -Φ-, -Φ-ε-Φ- and a naphthylene group,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms and an alkoxy group having 1 to 4 carbon atoms,
• said -ε- represents a single bond or a group selected from the group consisting of a methylene group and a urethodione group,
• or said Y independently represents a divalent aliphatic compound residue selected from the group consisting of a hexamethylene group, a methylene biscyclohexyl group, an isopropylidene biscyclohexyl group, a methylcyclohexylene group and a xylylene group,
• said α represents a divalent aromatic compound residue selected from the group consisting of -Φ- and -Φ-ε-Φ-,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a chlor group,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH— and any one selected from the group consisting of groups represented by the formulas (a):
• wherein m is an integer of 1 or 2,
• and said n is an integer of 2,
• said leuco dye is represented by the formula (i):
• wherein Y2 and Y3 each independently represent an alkyl group having 1 to 8 carbon atoms or an alkoxyalkyl group having 1 to 8 carbon atoms;
• Y4 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms;
• and Y5 and Y6 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms.

A color-producing composition comprising a developer and a colorless or light-colored dye precursor,

• wherein the colorless or light-colored dye precursor is a leuco dye and develops color upon contact with said developer,
• wherein said developer is a urea-urethane compound represented by any of the following formulas (I) to (VII):
• or a urea-urethane compound represented by the following formula (VII):
• wherein said X independently represents a monovalent aromatic compound residue selected from the group consisting of Φ-, Φ-ε-Φ- and a naphthyl group,
• wherein said Φ- represents a phenyl group, and -Φ- represents a phenylene group, and these phenyl and phenylene groups can each independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an allyl group, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, a cyclohexyl group, a hydroxyl group, a nitro group, a carboxyl group, and a halogen atom,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH—, —NH—, —CH(COOR1)—, —C(CF3)2—, and —CR2R3—, wherein R1, R2 and R3 each represent an alkyl group having 1 to 4 carbon atoms, and m is an integer of 1 or 2,
• or said X independently represents a monovalent aliphatic compound residue selected from the group consisting of R1-, A-(OR2′)m-, an allyl group, a methallyl group, a cyclohexyl group, and a benzyl group, wherein R1- represents an alkyl group having 1 to 10 carbon atoms, A- represents an alkyl group having 1 to 4 carbon atoms or a phenyl group, R2′represents an ethylene group or a propylene group, and m is an integer of 1 or 2,
• said Y independently represents a divalent aromatic compound residue selected from the group consisting of -Φ-, -Φ-ε-Φ- and a naphthylene group,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms and an alkoxy group having 1 to 4 carbon atoms,
• said -ε- represents a single bond or a group selected from the group consisting of a methylene group and a urethodione group,
• or said Y independently represents a divalent aliphatic compound residue selected from the group consisting of a hexamethylene group, a methylene biscyclohexyl group, an isopropylidene biscyclohexyl group, a methylcyclohexylene group and a xylylene group,
• said Y0 represents a divalent residue selected from the group consisting of a tolylene group, a xylylene group, a naphthylene group, a hexamethylene group, and -Φ-CH2-Φ- wherein -Φ- represents a phenylene group or a tolylene group,
• said Z independently represents a monovalent aromatic compound residue selected from the group consisting of Φ-, Φ-ε-Φ- and a naphthyl group,
• wherein said Φ- represents a phenyl group, and -Φ- represents a phenylene group, and these phenyl and phenylene groups can each independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, a hydroxyl group, a nitro group, a nitrile group, a carbamoyl group, a sulfamoyl group, a carboxyl group, an amino group, a sulfo group and a halogen atom,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH—, and —NH—, wherein m is an integer of 1 or 2,
• said α represents a divalent aromatic compound residue selected from the group consisting of -Φ-and -Φ-ε-Φ-,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a chlor group,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH— and any one selected from the group consisting of groups represented by the formulas (a):
• wherein m is an integer of 1 or 2,
• said β represents a divalent aromatic compound residue selected from the group consisting of -Φ-and -Φ-ε-Φ-,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and an allyl group,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —NH—, —CH(COOR1)—, —C(CF3)2—, and —CR2R3—, wherein R1, R2 and R3 each represent an alkyl group having 1 to 4 carbon atoms and m is an integer of 1 or 2,
• or said β represents a divalent aliphatic compound residue selected from the group consisting of -R1- and -R2-O-R2- wherein -R1- represents a divalent group of a chain saturated hydrocarbon having 1 to 10 carbon atoms and -R2- represents an ethylene group or a propylene group,
• said γ represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH—, and any one selected from the group consisting of groups represented by the formulas (a):
• wherein m is an integer of 1 or 2,
• said δ represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —NH—, —CH(COOR1)—, —C(CF3)2—, and —CR2R3—, wherein R1, R2 and R3 each represent an alkyl group having 1 to 4 carbon atoms and m is an integer of 1 or 2,
• said
• each independently represents a benzene ring which is optionally substituted with at least one group selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a hydroxyl group, a carboxyl group, a nitrile group, a carbamoyl group, a sulfo group and a halogen atom,
• and said n is an integer of 2.

A color-producing composition comprising a developer and a colorless or light-colored dye precursor,

• wherein the colorless or light-colored dye precursor is a leuco dye and develops color upon contact with said developer,
• wherein said developer is a urea-urethane compound characterized in that it is represented by the following formula (c) and has a molecular weight of 5,000 or less:
• or a urea-urethane compound characterized by being represented by the following formula (d):
• or a urea-urethane compound characterized in that it is represented by the following formula (e) or (f), has at least one urethane group and at least one urea group in a total number of not more than 10 and not less than 3, and has a molecular weight of 5,000 or less:
• or a urea-urethane compound characterized by being represented by the following formula (g) or (h):
• wherein n is an integer of 2 or more;
• or
• or wherein said developer is a urea-urethane composition obtained by reacting a polyisocyanate compound with a hydroxy compound and an amino compound, which is characterized by comprising 50 wt % or more of a urea-urethane compound having at least one urea group and at least one urethane group in a total number of 2 to 10 in the molecular structure and having a molecular weight of 5,000 or less,
• or wherein said developer is a urea-urethane composition obtained by reacting a polyisocyanate compound with a phenol compound and an amino compound, which is characterized by comprising 50 wt % or more of a urea-urethane compound having at least one urea group and at least one urethane group in a total number of 2 to 10 in the molecular structure and having a molecular weight of 5,000 or less,
• or wherein said developer is a urea-urethane composition obtained by reacting a polyisocyanate compound with an alcohol compound and an amino compound, which is characterized by comprising 50 wt % or more of a urea-urethane compound having at least one urea group and at least one urethane group in a total number of 2 to 10 in the molecular structure and having a molecular weight of 5,000 or less,
• wherein said R independently represents a monovalent aliphatic compound residue selected from the group consisting of R1-, A-(OR2)m-, an allyl group, a methallyl group, a crotyl group, a cyclohexyl group, and a benzyl group, wherein R1- represents an alkyl group having 1 to 18 carbon atoms, A- represents an alkyl group having 1 to 6 carbon atoms or a phenyl group, R2 represents an ethylene group or a propylene group, and m is an integer of 1, 2 or 3,
• said A1 represents a divalent aromatic compound residue selected from the group consisting of -Φ-, -Φ-ε-Φ- and a naphthylene group,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms and an alkoxy group having 1 to 4 carbon atoms,
• said -ε- represents a single bond or a group selected from the group consisting of a methylene group, an oxy group and a urethodione group,
• said A2 and Z1 each independently represent a monovalent aromatic compound residue selected from the group consisting of Φ-, Φ-ε-Φ- and a naphthyl group,
• wherein said Φ- represents a phenyl group, and -Φ- represents a phenylene group, and these phenyl and phenylene groups can each independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, a hydroxyl group, a nitro group, a nitrile group, a carbamoyl group, a sulfamoyl group, a carboxyl group, an amino group, a sulfo group and a halogen atom,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH—, and —NH—, and m is an integer of 1 or 2,
• said Y independently represents a divalent aromatic compound residue selected from the group consisting of -Φ-, -Φ-ε-Φ- and a naplithylene group,
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms and an amino group,
• said -ε- represents a single bond or a group selected from the group consisting of a methylene group, an oxy group and a urethodione group,
• or said Y independently represents a divalent aliphatic compound residue selected from the group consisting of a hexamethylene group, a methylene biscyclohexyl group, an isopropylidene biscyclohexyl group, a methylcyclohexylene group and a xylylene group,
• said α1 represents a divalent aromatic compound residue selected from the group consisting of -Φ- and -Φ-ε-Φ-
• wherein said -Φ- represents a phenylene group and said phenylene group can independently have a substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a chlor group,
• said -ε- represents a single bond or a group selected from the group consisting of —SO2—, —O—,—(S)m-, —(CH2)m-, —CO—, —CONH— and any one selected from the group consisting of groups represented by the formulas (a):
• wherein m is an integer of 1 or 2,
• or said α1 represents a divalent aliphatic compound residue selected from the group consisting of -R1-, —CH2CH2(NHCH2CH2)m-, a methylene biscyclohexyl group, an isopropylidene biscyclohexyl group, a methylcyclohexylene group and a xylylene group, wherein -R1- represents a divalent group of a chain saturated hydrocarbon having 1 to 6 carbon atoms, and m is an integer of 1 to 3,
• said β1 represents a divalent to tetravalent aliphatic compound residue selected from the group consisting of -R1-, -R2-O-R2-, N(-R2- )3, and a trivalent to tetravalent chain saturated hydrocarbon group having 3 to 5 carbon atoms, wherein -R1- represents a divalent group of a chain saturated hydrocarbon having 1 to 10 carbon atoms and -R2- represents an ethylene group or a propylene group,
• said γ1 represents a single bond or a group selected from the group consisting of —SO2—, —O—, —(S)m-, —(CH2)m-, —CO—, —CONH—, and any one selected from the group consisting of groups represented by the formulas (a):
• wherein m is an integer of 1 or 2, said
• each independently represents a benzene ring which is optionally substituted with at least one group selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a hydroxyl group, a carboxyl group, a nitrile group, a carbamoyl group, a sulfo group, a sulfamoyl group and a halogen atom,
• and said n is an integer of 2, 3 or 4 depending on the valence number of α1 and β1.