Imperial Chemical Industries Limited

Canon Kabushiki Kaisha

Basf Aktiengesellschaft

David Greenwood

Stephen B Bostock

Anthony G Baxter

Peter Gregory

Ronald W Kenyon

Suraj L Hindagolla

Nigel Hughes

John E Presgrave

Prahalad Manibhai Mistry

Warren James Ebenezer

Michael G Hutchings

Andrea Zamponi

Michael Alan Rabjohns

Alan Keith Dunnell

Thomas Cyril Wade

This application relates to reactive dyes having at least one halobenzene nucleus linked to a chromophoric group via an amino linkage and additionally containing a second reactive group.

Reactive dyes containing a halobenzene nucleus

A compound which, in the free acid form, is of the Formula (1): ##STR1## wherein B is 3- or 4-carboxyphenyl; and

Anionic disazo dyes

A dye which, in the free acid form, has the formula ##STR1## wherein W is COOH

Anionic dye

Black compounds of Formula (1) having enhanced solubility in polar organic liquids which are useful as ink colorants in conventional and hot melt ink-jet printing and automatic identification, as black colorants for toners and thermal wax transfer sheets and as charge control agents for electrophotographic toners; ##STR1## wherein R is H, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, aryl, C.sub.4-8 cycloalkyl, --CN, --NO.sub.2, halogen, --COOR.sup.1, --OH, --SH or --SO.sub.3 A;

Salts of black trisazo dyes with alkyl amines having good solubility in

A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H,

Water-soluble dye

Anionic dye having high water-fastness

An information device comprising a substrate having applied thereto:

Information device

A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O) .sub.n H,

Ink comprising water soluble triazine dye free from cellulose reactive

Water-soluble triazane dyestuffs free from cellulose reactive groups and

Water-soluble triazine dyestuffs free from cellulose reactive groups and

An ink comprising at least one water-soluble dye, free from cellulose-reactive groups, of the formula: ##STR1## wherein, R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H,

Ink comprising at least one water soluble-formazan dye, free from

An ink for ink-jet printing comprising a solution of C.I. Direct Black 168.

A water-soluble dye, free from cellulose-reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H,

Water-soluble formazan dye

A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H;

Water-soluble triphendioxazine disazo dyes

A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H, R.sup.2 is H or --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H, or

Growing community of inventors

Oldham, United Kingdom

David Greenwood