Abstract: The present invention discloses substituted phenyl di and trisazo dyes free of reactive groups having two or three sulfonic acid groups, of the general formula: ##STR1## wherein D.sup.1 is ##STR2## Z is hydrogen or D.sup.4 --N.dbd.N--; D.sup.2 is phenyl substituted by hydroxyl, hydroxysulfonyl, chlorine or nitro, or is naphthyl substituted by hydroxy, hydroxysulfonyl or nitro, X, independently of one another, are hydroxyl or amino, D.sup.3 is phenyl which is substituted by hydroxysulfonyl, chlorine, bromine, methyl, methoxy, ethoxy, nitro, phenylamino, sulfophenylamino or nitrosulfophenylamino, or is naphthyl which is substituted by hydroxysulfonyl; D.sup.4 is phenyl which is unsubstituted or substituted by methyl, ethyl, methoxy, ethoxy, chlorine, bromine, nitro, sulfamoyl or hydroxysulfonyl, or is naphthyl which is substituted by hydroxysulfonyl; and R.sup.

Abstract: Navy dye mixtures essentially contain dyes of the formula I ##STR1## where X is hydrogen, chlorine or bromine, the radicals R.sup.1 independently of one another are each methyl or ethyl and R is a radical of the formula ##STR2## where A is ##STR3## B is unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl, phenyl-C.sub.1 -C.sub.4 -alkyl, phenoxy-C.sub.2 - or -C.sub.3 -alkyl or cyclohexyl and R.sup.2 is C.sub.1 -C.sub.4 -alkyl, the mixtures containing from 20 to 80 parts of dyes in which R is NH-A-COOB and from 80 to 20 parts of dyes in which R is ##STR4## The novel mixtures are very useful for dyeing synthetic polyesters, and give dyeings which have, in particular, very good heatfastness.

Abstract: The printing head of an ink jet printer includes several tubular nozzle ducts which have the same cross-section and on each of which there is arranged a cylindrical drive member. Each nozzle duct is constructed to be integral with its ejection nozzle and the damping member at its rear, and opens perpendicularly into the distribution duct via which the ink is applied to all nozzle ducts. At the area between the drive members and the nozzles, the nozzle ducts are bent, such that they extend parallel to one another in the other zones, the distances at the area of the nozzles being determined by the distance required between the ink droplets which are mosaic-wise deposited on the record carrier and at the rear area by the dimensions of the drive members.

Abstract: Navy mixtures which contain dyes of the formula I ##STR1## where X is chlorine or bromine,Y is hydrogen, methoxy or ethoxy andR is N(C.sub.2 H.sub.5).sub.2, N(CH.sub.2 CH.dbd.CH.sub.2).sub.2 or N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2,the mixtures being composed of 10-70% of dyes with Y.dbd.H and R=N(C.sub.2 H.sub.5).sub.2, 5-40% of dyes with Y=OCH.sub.3 or OC.sub.2 H.sub.5 and R.dbd.N(CH.sub.2 --CH.dbd.CH.sub.2).sub.2 and 5-80% of dyes with Y=OCH.sub.3 or OC.sub.2 H.sub.5 and R=N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2.The novel mixtures have excellent tinctorial properties and give very fast dyeings on synthetic polyesters.

Abstract: Navy dye mixtures which contain, as essential components, compounds of the general formula I ##STR1## in the following amounts, based on the total weight of the mixture:______________________________________ X = Br R.sup.1 = C.sub.2 H.sub.4 CN R.sup.2 = CH.sub.2 CHCH.sub.2 39-49%, X = Br R.sup.1 = C.sub.2 H.sub.4 CN R.sup.2 = H 1-10%, X = Br R.sup.1 = H R.sup.2 = CH.sub.2 CHCH.sub.2 4-16%, X = Cl R.sup.1 = C.sub.2 H.sub.4 CN R.sup.2 = H 15-25%, X = Cl R.sup.1 = C.sub.2 H.sub.4 CN R.sup.2 = CH.sub.2 CHCH.sub.2 4-9%, and X = Cl ##STR2## R.sup.2 = H 4-10%. ______________________________________The novel mixtures are very useful for dyeing synthetic polyesters.

Abstract: Navy dye mixtures which contain, as essential components, compounds of the general formula I ##STR1## where X is chlorine or bromine, Y is methoxy or ethoxy, and R is ##STR2## NHC.sub.2 H.sub.4 CN, NHCH.sub.2 CH.dbd.CH.sub.2 or N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2, and wherein the dye of the above formula where X is Br, Y is OCH.sub.3 or OC.sub.2 H.sub.5 and R is N(C.sub.2 H.sub.4 OCOCH.sub.3).sub.2 is present in an amount of 25-45%, based on the total weight of the mixture, are very useful for dyeing synthetic polyesters.

Abstract: Apparatus for optically scanning a surface, the radiation path between the light source and light detector including a wedge for correcting undesired intensity variations which occur when a homogeneous non-textured surface is scanned.

Abstract: Method of recording visible data wherein a polymeric layer containing acetyl acetonate is disposed through an image pattern to a laser beam.