Sumitomo Chemical Company, Limited

Nobuyuki Katsuda

Shuhei Hashizume

Shinichi Yabushita

Toshinori Fukui

Kazufumi Yokogawa

Yousuke Yamamoto

Yoshimasa Amatatsu

A monoazo compound of the following formula(I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a chlorine atom; R.sub.2 represents a phenyl group or an alkyl group which is unsubstituted or substituted; R.sub.3 is a hydrogen atom or C.sub.1 -C.sub.4 alkoxy; and R.sub.4 and R.sub.5 represent a hydrogen atom, an allyl group, a tetrahydrofurfuryl group, or an alkyl group which is unsubstituted or substituted by a chlorine atom, a cyano group, an alkoxy group, a hydroxy group, a phenoxyalkoxy group, a phenoxy group, a phenyl group, a benzyloxy group, an alkoxycarbonyl group, an alkoxycarbonyloxy group, an alkanoyloxy group, a benzoyloxy group, a phenoxycarbonyloxy group, an alkanoyl group, an alkoxyalkoxycarbonyl group, tetrahydrofurfuryloxy carbonyl group or an alkoxyalkoxy group; provided that R.sub.4 and R.sub.5 are not hydrogen atoms or a substituted alkyl group simultaneously; and a method for dyeing or printing a hydrophobic fiber material using the monoazo compound.

Monoazo blue disperse dye compounds and methods for dyeing or printing

The invention is to provide a composition made by blending a benzodifuranone compound of the formula (I): ##STR1## wherein R.sub.1 represents a methylene or straight or branched C.sub.2 -C.sub.6 alkylene group optionally substituted with a hydroxy, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylcarbonyloxy group; and Q represents 5- or 6-membered saturated or unsaturated heterocyclic ring residue, with an anthraquinone compound of the formula (II): ##STR2## wherein R.sub.2 represents an optionally substituted C.sub.1 -C.sub.6 alkyl, optionally substituted phenyl or C.sub.1 -C.sub.4 alkoxyphenylsulfonyl group, and a method for dyeing hydrophobic materials using the composition to obtain red dyed products with excellent pH dependency and fastnesses to light and washing.

Compositions containing benzodifuranone compounds and methods for dyeing

A composition containing benzodifuranone compounds for coloring hydrophobic materials in red which comprises at least one compound selected from the group of benzodifuranone compounds represented by the formula (I): ##STR1## wherein R.sub.1 represents a methylene group, a hydroxide group or a straight chain or branched C.sub.2-6 alkylene group which may be substituted by a C.sub.1-4 alkoxy or C.sub.1-4 alkylcarbonyloxy group, Q represents a 5- or 6-membered saturated or unsaturated heterocyclic ring residue which may be substituted; and at least one compound selected from the group consisting of benzeneazo compounds and/or benzothiazolazo compounds.

Compositions containing a benzodifuranone compound and methods for

A composition for dyeing hydrophobic materials, such as polyester fiber materials, with a clear and sharp color fastness contains at least one benzodifuranone compound represented by a formulae (I) and at least one benzodifuranone compound represented by a formula (II), wherein the weight ratio of the at least one benzodifuranone compound represented by formula (I) to the at least one benzodifuranone compound represented by formula (II) is 90:10 to 10:90.

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Ashiya, Japan

Nobuyuki Katsuda