Mitsubishi Kasei Corporation

Mitsubishi Chemical Corporation

Mitsubishi Chemical Industries Limited

Matsushita Electric Industrial Co., Ltd.

Sony Corporation

Yukichi Murata

Mio Ishida

Takao Hirota

Nobuyoshi Taguchi

Akihiro Imai

Shuichi Maeda

Toshio Niwa

Hideo Sano

Kenji Shinozaki

Hideki Hirano

Hiroshi Takimoto

Tsutomu Taki

Takashi Morishima

Masahiro Yamada

Tetsuji Kawakami

Hideo Shinohara

Tomio Yoneyama

Seiichi Imahori

Takashi Hirasa

Yutaka Kawai

Sumio Suzuki

Mio Nakamura

Nobuyoshi Satoh

Tetsuo Ozawa

Masahiro Yamamoto

Hiroshi Mikami

Katsuhiko Kuroda

Miyuki Kuromiya

Wataru Shimizu

Koji Maeda

Hiroshi Urabe

Yukio Tsuge

Yutaka Kurose

Toru Nishimura

Syuichi Maeda

Tadashi Okabayashi

Shoji Toki

A water-soluble complex dye capable of forming an image having light resistance, ozone resistance and high saturation; a water-based recording fluid, particularly an ink jet recording fluid, employing such a dye; an ink set employing such a recording fluid; and an ink jet recording method, are presented.

Water-soluble complex dye, recording fluid and recording method

A thermal transfer ink is provided, which includes:

Ink for thermal transfer, sheet for thermal transfer, and thermal transfer recording method using the same

A disazo dye for thermal transfer recording of the following formula (I):

Disazo dye for thermal transfer recording and thermal transfer sheet and ink for thermal transfer recording, employing it

A thermal transfer recording material for use in a recording apparatus in which said thermal transfer recording material is introduced into a transfer section having a porous structure by an effect of capillarity, subjected to a state transformation by heating, and then transferred to a recording medium disposed opposed to said transfer section, comprising: a dye having a melting point of 160.degree. C. or lower, selected from the group consisting of a dye represented by the general formula (I): ##STR1## wherein A.sup.1, R.sup.1 and R.sup.2 are as defined, and a dye represented by the general formula (II): ##STR2## wherein A.sup.2, R.sup.3 and R.sup.4 are as defined.

Thermal transfer recording material

A thermal transfer recording material for use in a recording apparatus in which the thermal transfer recording material is introduced into a transfer section having a porous structure by an effect of capillarity, subjected to a state transformation by heating, and then transferred to a recording medium disposed in an opposed relation to the transfer section, comprising:

Thermal transfer recording material and thermal transfer recording

A benzothiazole azo dye for thermal transfer recording of the following formula (I): ##STR1## wherein R.sup.1 is a C.sub.3-8 branched chain alkyl group, R.sup.2 is a substituted or unsubstituted alkyl group, X is a hydrogen atom, a lower alkyl group, a formylamino group, a lower alkylcarbonylamino group, a lower alkoxycarbonylamino group or a benzoylamino group, Y is a chlorine atom or a bromine atom, and Z is a hydrogen atom, a chlorine atom or a bromine atom.

Benzothiazole azo dye and thermal transfer sheet employing it

A recording liquid containing an aqueous medium, a pigment and a polymer, wherein the polymer comprises at least one polymer containing a repeating unit A having at least one of a carboxyl group and an acid anhydride group and an allylether unit B of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 are a hydrogen atom or a substituted or unsubstituted C.sub.1 -C.sub.5 alkyl group, R.sub.3 is a hydrogen atom, an alkyl group, an alkylcarbonyl group, an alkenyl group, an alkenylcarbonyl group, an aryl group, an arylcarbonyl group, an aralkyl group, an aralkylcarbonyl group, a cycloalkyl group, a cycloalkylcarbonyl group, a heterocyclic group or a carbonyl group having a heterocyclic group, and these groups other than a hydrogen atom may have a substituent, and n is from 1 to 50.

Recording liquid

A thermal transfer recording material for use in a recording apparatus in which the thermal transfer recording material is introduced into a transfer section having a porous structure by an effect of capillarity, subjected to a state transformation such as vaporization or droplet formation by heating, and then transferred to a recording medium disposed opposed to the transfer section, comprising: a dye having a molecular weight of 400 or less and represented by the general formula (I): ##STR1## where A is a substituted or unsubstituted p-phenylene group, R.sup.1 and R.sup.2 are individually a hydrogen atom, a substituted or unsubstituted alkyl or alkenyl group, a cycloalkyl group or a substituted or unsubstituted phenyl group; and R.sup.1 may constitute a heterocyclic group composed of a five- or six-member ring in combination with the p-phenylene group A and a nitrogen atom adjacent to the p-phenylene group A, or another heterocyclic group composed of a five- or six-member ring in combination with R.sup.2 and the nitrogen atom adjacent to the p-phenylene group A.

A thermal transfer recording material for use in a recording apparatus in which the thermal transfer recording material is introduced into a transfer section having a porous structure by an effect of capillarity, subjected to a state transformation such as vaporization or droplet formation by heating, and then transferred to a recording medium disposed opposed to the transfer section, comprising:

A recording liquid comprising an aqueous medium and at least one selected from the compounds whose free acid form is represented by the formula {1}: ##STR1## wherein, R.sup.1, R.sup.2 and R.sup.3 each independently represent a substituted or unsubstituted C.sub.1-9 alkyl group, a C.sub.1-9 alkoxy group, a halogen, hydrogen, a hydroxyl group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted sulfamoyl group, a substituted or unsubstituted amino group, a nitro group, a sulfonic ester group, a C.sub.1-9 alkyl- or C.sub.6-15 aryl-sulfonyl group, a COOH group or a carboxylic ester group;

A recording liquid comprising an aqueous medium and at least one dye selected from dyes, a free acid form of which is represented by formula (I), (II), (III) or (VI), the symbols in the formulae being defined in the specification: ##STR1##

A recording liquid excellent in print quality, light resistance, and water resistance which is characterized in that it contains an aqueous medium and at least one dye selected from the dyes represented by general formulae [I] to [V]: ##STR1## (wherein R.sub.1 and R.sub.2 each represents H, CH.sub.3, or OCH.sub.3 ; R.sub.3 represents H, Cl,CH.sub.3, or OCH.sub.3 ; R.sub.4 represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, a tolyl group, or an anisyl group; R.sub.5 represents H, a phenyl group which may be substituted with a COOM group, or an alkyl group having 1 to 3 carbon atoms which is substituted with a COOM group; R.sub.6 represents H or an alkyl group having 1 to 3 carbon atoms which is substituted with a COOM group; X represents SO.sub.3 M or COOM; Y represents --CO-- or --SO.sub.2 --; m represents 1 or 2; n represents 0 or 1; A represents a phenylene group which may have one or more members 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 amino group, a --COOM group, a hydroxyl group, an --SO.sub.3 M group, and a halogen atom; and M represents an alkali metal, an ammonium group, or an organic amine salt.)

A recording liquid comprising an aqueous medium and at least one dye selected from dyes, free acid forms of which are represented by formulae (I) and (II): ##STR1## The symbols in formulae (I) and (II) are defined in the specification.

An image receiving sheet for thermal transfer recording is described. The sheet contains a substrate and an image receiving layer formed thereon for receiving a sublimable dye. The image receiving layer contains, as its main component, a product formed by thermosetting a composition of an active hydrogen-containing resin, a modified silicone resin, a silicone oil and a polyfunctional isocyanate compound.

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Kanagawa, Japan

Yukichi Murata