4 hours at 100 u00b0 110 u00b0 c in a closed vessel after working up the pigment obtained is entirely similar to that obtained as described in example 2 the procedure described in example 2 is followed but instead of isobutanol 50 parts of methylethylketone are used after working up the pigment powder obtained has substantially greater hiding power and produces yellower full shade finishes produced as described in a i than does a pigment powder prepared under identical conditions but without addition of 2 chloroanthraquinone the procedure described in example 2 is followed but instead of isobutanol 50 parts of tetrahydrofuran are used the pigment powder obtained gives a full shade finish of greater hiding power than does a pigment powder prepared under identical conditions but without addition of 2 chloroanthraquinone the procedure described under b is followed but 4 parts of 2 chloroanthraquinone are added to the solution of 6 14 dichloropyranthrone in sulfuric acid and the product is worked up as described in b to give a dye paste containing 2 chloroanthraquinone 167 parts of the paste are finished as described in example 2 the pigment powder obtained has the same properties as the powder described in example 2 a mixture of 20 parts of 6 14 dichloropyranthrone and 0 4 part of 2 chloro 3 methylanthraquinone is milled for.