Abstract: The dyes of formula (1) according to claim 1 and the copper complexes of dyes of formula (2) according to claim 9 or the mixtures of mono-copper complex with the bis-copper complex are excellently suitable for dyeing paper with good light-fastness properties.

Abstract: The present invention provides dyes of formula I-XXXIV, described in detail below, and dichroic light polarizers based on the dyes. In the dichroic light polarizers of this invention the dye molecules are aggregated into particles oriented in a predetermined direction on a surface of a substrate to enable the dye to polarize light transmitted through the dye. In another embodiment, a dichroic light polarizer includes a molecularly oriented layer of an organic dye on a surface of a substrate. The layer has a non-periodic arrangement of different polarizing elements. Each of the polarizing elements have differing orientations of the polarization vector in the substrate plane and/or differing colors. The dichroic light polarizer may contain one or more additional dye layers and may have a transparent layer intermediate to the dye layer.

Abstract: Anionic azo compounds which, in the free acid form, have the Formula (1): ##STR1## wherein: Ar and Ar.sup.1 are each independently aryl or substituted aryl providing at least one of Ar and Ar.sup.1 has at least one substituent selected from COOH and COSH;J and J.sup.1 are each independently of formula (2), (3) or (4): ##STR2## each R.sup.5 is independently selected from H, alkyl, substituted alkyl, alkoxy, halogen, CN, ureido and NHCOR.sup.6 ;R.sup.6 is H, alkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl;each T is independently alkyl;each W is independently selected from H, CN, CONR.sup.10 R.sup.11, pyridinium and COOH;each m is an alkylene chain having 2 to 8 carbon atoms;B is H, alkyl or COOH;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.10 and R.sup.11 are each independently H, alkyl or substituted alkyl;L is a divalent organic linking group;n is 0 or 1;each X is independently carbonyl or a group of the Formula (5), (6) or (7): ##STR3## Z is OR.sup.7, SR.sup.7 or NR.sup.8 R.sup.

Abstract: Pigment preparation essentially comprisinga) at least one pigment from the class of azo, anthrapyrimidine, anthanthrone, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, flavanthrone, indanthrone, isoindolinone, isoviolanthrone, perylene, phthalocyanine, pyranthrone or thioindigo pigments or a mixture of pigments belonging to various classes, andb) at least one dispersant of the formula (I) ##STR1## in which P, independently of the pigments mentioned in a), is a radical of an anthanthrone azo, quinacridone, perinone, diketopyrrolopyrrole, dioxazine, indanthrone, perylene, phthalocyanine or thioindigo pigment,R.sup.1 and R.sup.2, independently of one another, are hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.

Abstract: An aqueous ink composition for ink-jet recording comprising an aqueous solution of a water-soluble dye of formula (I) and a humectant dissolved in water: ##STR1## wherein Ar represents an unsubstituted or substituted phenyl group, or an unsubstituted or substituted naphthyl group; X represents a hydroxyl group, an alkoxy group, a halogen atom, an alkylamino group, a hydroxyalkylamino group, a cyclic amino group or an anilino group; M represents hydrogen, K, Na, Li, NH.sub.4 or an organic amine cation; and n is an integer of 1 or 2.

Abstract: Water-soluble azo compounds which, in the free acid form, are represented by the formula: ##STR1## wherein one of X and Y is hydrogen and the other is --SO.sub.3 H; one of A and B is hydrogen and the other is --SO.sub.3 H; each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group or ureido group; and each of R.sub.5 and R.sub.6 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group, chlorine, hydroxyl group or carboxyl group, and a method for dyeing cellulose fibers, blended yarn fabrics of cellulose fibers with other kinds of fibers, particularly with polyester fibers, using the said compounds.