摘要:
Dioxazine compound of the formula (I) mentioned below which is useful for dyes or pigments is prepared by heating a compound of ##STR1## in the presence of inorganic acid with or without an oxidizing agent in an inert organic solvent: ##STR2## wherein R is defined above; X.sub.1 and X.sub.2 are selected from a hydrogen atom and a chlorine atom.
摘要:
A cyan dye-donor element which gives good printed images to a thermal-transfer sheet and a thermal-transfer sheet comprising a substrate sheet and a layer containing said cyan dye-donor and being laid on one side of the substrate sheet are provided. The cyan dye-donor element comprises cyan dyes dispersed or dissolved in a polymeric binder wherein said cyan dyes comprise: ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group; at least one dye represented by the following formula (II): ##STR2## wherein R.sub.3 and R.sub.4 each represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group which may be substituted, and R.sub.5 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group; and at least one dye selected from the group consisting of dyes represented by the following formula (III): ##STR3## wherein R.sub.6 and R.sub.7 each represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group which may be substituted, R.sub.8 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group which may be substituted, an alkoxy group which may be substituted or an acylamino group which may be substituted and R.sub.9 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group which may be substituted or an aryl group which may be substituted, dyes represented by the following formula (IV): ##STR4## wherein R.sub.10 represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group which may be substituted, an aryl group which may be substituted or a cyclohexyl group, R.sub.11 -R.sub.13 each represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group which may be substituted, and R.sub.14 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group which may be substituted or an alkoxy group which may be substituted, and dyes represented by the following formula (V): ##STR5## wherein R.sub.15 and R.sub.16 each represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group which may be substituted.
摘要:
A compound of the formula, wherein R.sub.1 is hydrogen or a halogen atom, R.sub.2 is ##STR1## R.sub.3 is hydrogen, an alkyl group, a cycloalkyl group or an aralkyl group, and n is an integer of 1 or 2, which is useful as ultraviolet absorber.
摘要:
A compound having at least one --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 M group in the molecule, wherein M is hydrogen or an alkali metal, which is useful as a reactive dye for dying cellulose fiber materials or as an intermediate for production of said reactive dye, is industrially advantageously produced in a high yield and a high quality by esterification of a compound having at least one --SO.sub.2 CH.sub.2 CH.sub.2 OH in the molecule using a sulfuric acid-esterifying agent in the presence of a water-insoluble organic solvent and a secondary or tertiary amine.
摘要:
A magenta dye-donor element and a thermal transfer sheet using it which can provide good printed images are disclosed. This magenta dye-donor element comprises a magenta dye dispersed or dissolved in a polymeric binder, said magenta dye comprising a dye represented by the following formula (I): ##STR1## wherein X.sub.1 and X.sub.2 each represents a hydrogen atom, a halogen atom, a trifluoromethyl group, a C.sub.1 -C.sub.6 alkyl group or a C.sub.1 -C.sub.6 alkoxy and a dye represented by the following formula (II): ##STR2## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a phenyl group, or a C.sub.1 -C.sub.4 alkyl group substituted with a C.sub.1 -C.sub.4 alkoxy group, a C.sub.1 -C.sub.4 alkoxy-carbonyl group, a C.sub.1 -C.sub.4 alkyl-carbonyloxy group, an aminocarbonyl group, a C.sub.1 -C.sub.4 alkoxy-carbonyloxy group, a cyano group, a phenyl group or a chlorine atom, R.sub.3 and R.sub.4 each represents a hydrogen atom, a chlorine atom, a C.sub.1 -C.sub.6 alky; group, a C.sub.1 -C.sub.4 alkyl-carbonylamino group, a phenylcarbonylamino group or a C.sub.1 -C.sub.4 alkoxy group, and R.sub.5 and R.sub.6 each represents a hydrogen atom, a chlorine atom, a bromine atom, a cyano group, a thiocyano group, a nitro group, a C.sub.1 -C.sub.6 alkyl group, or a C.sub.1 -C.sub.4 alkoxy group, a C.sub.1 -C.sub.4 alkylthio group or a C.sub.1 -C.sub.4 alkylsulfonyl group. Preferably the magenta dye contains, in combination with the above two dyes, a dye represented by the following forumla (III): ##STR3## wherein Y represents a hydrogen atom, a halogen atom, a hydroxy group, a C.sub.1 -C.sub.6 alkyl group or a C.sub.1 -C.sub.6 alkoxy group which may have a substituent.
摘要:
Dioxazine violet pigment clear in color hue, high in tinting strength and good in dispersibility, which is suitable for ink, is prepared by treating a crude dioxazine violet with sulfuric acid (to finer it) and then treating an aqueous suspension of the resulting dioxazine violet in coexistence of an alcohol and an inorganic salt.
摘要:
Copper phthalocyanine pigment which is a coloring material for ink or paint is prepared by allowing, for example, phthalate, urea, and cuprous chloride to react in a hydrophilic solvent in the presence of a catalyst and at least one element selected from the group consisting of aliphatic tetracarboxylic acids, benzophenone 3,3',4,4'-tetracarboxylic acid or anhydride thereof, pyromellitic acid or anhydride thereof, copper phthalocyanine sulfonic acids, copper phthalocyanine carbonyl imide, tetrahydrophthalic acid or derivative thereof, pyromellitic imide or derivative thereof, sulfophthalic acid, derivative thereof or the salt thereof and benzene carboxylic acid.
摘要:
A compound having at least one --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 M group in the molecule, wherein M is hydrogen or an alkali metal, which is useful as a reactive dye for dying cellulose fiber materials or as an intermediate for production of said reactive dye, is industrially advantageously produced in a high yield and a high quality by esterification of a compound having at least one --SO.sub.2 CH.sub.2 CH.sub.2 OH in the molecule using a sulfuric acid-esterifying agent in the presence of a water-insoluble organic solvent and a secondary or tertiary amine.