摘要:
A hair dye composition containing a triazene dissociative direct dye represented by general formula (1): A—N=N—NH—B (1) wherein A and B are each a monocyclic or a bicyclic aromatic heterocyclic group that may have a substituent or a monocyclic or a bicyclic aryl group that may have a substituent and contain none of a carboxy group, a sulfo group and a quaternary ammonium group; and A and B each bind to a triazene-1,3-diyl group represented by —N=N—NH— via a carbon atom within A and B each. A and B may be the same or different.
摘要:
A novel method for formation of an image comprising a heating step, comprising the heating carried out in the presence of a compound of general formula (I):X--SO.sub.2 (DI) (I)wherein X represents a reducing group capable of reducing a silver salt and capable of being oxidized by heating and in its oxidized state capable of releasing a compound represented by (DI)--SO.sub.2 NH.sub.2 by reaction with a nucleophilic agent; and (DI) represents a development inhibiting group capable of inhibiting the oxidation reduction reaction of the silver salt and a reducing aent.The compound of the formula (I) functions to inhibit development after a certain period of time from the beginning of heat development.The present method provides a stable image with reduced fog and image mottle.
摘要:
An optical film comprising at least one compound represented by formula (1) is disclosed. In the formula, Y11, Y12 and Y13 each independently represent methine or a nitrogen atom; R11, R12 and R13 each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R11, R12 and R13 each independently represent formula (A), (B) or (C). In the formulae, L12, L22, and L32 each represent a 5-membered heterocyclic group.
摘要:
A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): wherein R1 represents a substituent; m represents an integer of 0 to 4; and R2 represents an alkyl group, alkenyl group or aryl group.
摘要:
A color diffusion transfer photographic material is described, which comprises at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, and R.sup.1 and R.sup.2 may be linked to form a ring directly or via an oxygen atom or a nitrogen atom; R.sup.3 represents an --NHSO.sub.2 R.sub.10 group, an --SO.sub.2 NHCOR.sub.10 group, an --SO.sub.2 NHSO.sub.2 R.sub.10 group, an --NHCOR.sub.10 group or an --OH group; R.sub.10 represents an alkyl group; R.sup.4 and R.sup.5 each represents a substituent and when there are a plurality of R.sup.4 and R.sup.5, they may be the same or different; CAR represents a group which releases a dye different from the compound represented by formula (I) in diffusibility by oxidation; x and y each represents 0 or an integer of 1, 2, 3 or 4; and z represents 0 or 1.
摘要:
A color light-sensitive material comprising a support provided thereon at least one light-sensitive silver salt layer combined with an image forming compound represented by formula (I) ##STR1## wherein Dye represents a cyan dye group or a precursor thereof represented by formula (II) defined in the specification;X represents a chemical bond or a linking group;Y represents a group which releases Dye corresponding to or countercorresponding to light-sensitive silver salt having an imagewise latent image and makes a difference in diffusibility between the dye thus released and the compound represented by formula (I), provided that Dye and X are linked to each other by A or E in formula (II); andq represents an integer of 1 or 2, provided that when q is 2, the two groups (Dye--X) may be the same or different.
摘要:
A hair dye composition containing a triazene dissociative direct dye represented by general formula (1): A-N═N—NH-B (1) wherein A and B are each a monocyclic or a bicyclic aromatic heterocyclic group that may have a substituent or a monocyclic or a bicyclic aryl group that may have a substituent and contain none of a carboxy group, a sulfo group and a quaternary ammonium group; and A and B each bind to a triazene-1,3-diyl group represented by —N═N—NH— via a carbon atom within A and B each. A and B may be the same or different.
摘要:
An optical film comprising at least one compound represented by formula (1) is disclosed. In the formula, Y11, Y12 and Y13 each independently represent methine or a nitrogen atom; R11, R12 and R13 each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R11, R12 and R13 each independently represent formula (A), (B) or (C). In three formulae, L12, L22 and L32 each represent a 5-membered heterocyclic group.
摘要:
A hair dye composition containing an azo dye represented by any one of the formulas (1) to (5): [wherein R1, R2a, and R2b each represents a hydrogen atom or a substituent, A and A′ each represents an aromatic heterocyclic residue (having a free valence at carbon atom thereof) and these groups have, in the structure thereof, none of a carboxy group, a sulfo group, and a quaternary ammonium group]; [R represents a coupler component, X1 to X4 represent atoms coupled together with the carbon atom sandwiched between X1 and X4 to form a 5-membered heteroaromatic ring, V1 and V2 each represents a substituent, and a1 and a2 each stands for from 0 to 3]; and [R3 represents a hydroxy group, an alkylsulfonylamino group, an arylsulfonylamino group, or —CH(R4)(R5) (R4 and R5 each representing a substituent having a Hammett's constant ? of 0.2 or greater and less than 1.4), W represents a S atom or N—R6 (R6 representing a substituent), X, Y and Z each represents a nitrogen atom or a carbon atom, R7 and R8 each represents a substituent, and b stands for from 0 to 2].
摘要:
An optical recording medium comprising a substrate having thereon a recording layer containing at least two kinds of dye A and dye B, wherein dye A and dye B satisfy the following conditions (1) and (2): (1) the starting temperature of decomposition is from 150 to 250° C., (2) refractive index n(A) and extinction coefficient k(A) of dye A at the wavelength of recording laser ray, and refractive index n(B) and extinction coefficient k(B) of dye B at the same wavelength satisfy the following expressions: n(B)/n(A)>0.7 k(B)/k(A)>10.