Abstract: The invention discloses a method for dyeing a hydrophobic fiber, in particular, a polyester fiber in an extremely brilliant yellow or orange with fluorescence, a method for coloring, for example, a polystyrene resin or a polyacrylate resin in a brilliant yellow or orange, and a coloring material therefore.A method for dyeing a hydrophobic fiber and a method for coloring an organic macromolecular substance characterized by using a coumarin compound represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 independently represent each a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;and a coloring material containing the coumarin compound are disclosed.

Abstract: A cuprophthalocyanine type compound represented by formula [1] in the form of free acid ##STR1## (wherein D is a cuprophthalocyanine radical; B is an alkylene group of 2 to 4 carbon atoms or a phenylene group which may have one or two carboxyl group(s) or sulfonic acid group(s) as a substituent(s); R is a lower alkyl group or a lower alkoxy-lower alkyl group; X is a carboxyl group or a carbamoyl group and combines with the 3- or 4-position of the pyridine ring; l is 1, 2 or 3; m is 0, 1 or 2; n is 1 or 2; and the sum of l, m and n is 2, 3 or 4) as well as a method for dyeing cellulosic fiber materials using the said compounds.

Abstract: The present invention relates to a process for dyeing cellulose fibers or its union fibers which is effected according to an exhaustion dyeing method using a reactive dye containing at least one s-triazinyl group having a group of the formula: ##STR1## wherein M represents a hydrogen or an alkali metal, in an aqueous dyeing bath having a pH in the range of 4 to 10 and a dyeing temperature in the range of 110.degree. C. to below 140.degree. C.

Abstract: Anthraquinone compounds represented by the following formula are useful as dyes: ##STR1## wherein Y stands for a hydrogen atom or a nitro group, Z stands for an oxygen or sulfur atom when Y stands for a hydrogen atom, but Z stands for an oxygen atom when Y stands for a nitro group, R.sub.1 stands for a hydrogen atom or a lower alkyl group, R.sub.3 stands for a halogen atom or a group R.sub.2 wherein R.sub.2 stands for an amino, substituted or unsubstituted lower alkylamino, substituted or unsubstituted arylamino, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio group, or a group ##STR2## Q stands for a nitrogen atom or carbon atom bearing a halogen atom when R.sub.3 stands for a halogen atom, but Q stands for a nitrogen atom when R.sub.3 stands for a group R.sub.