Патент USA US2118192код для вставки
2,118,192 Patented May 24, 1938 UNITED STATES PATENT OFFICE 2,118,192 MIXTURES OF DYESTUFFS Robert Grether, Wilhelmsbad, near Hanan-on the-Main, Germany, assignor to General Ani line Works, Inc., New York, N. Y., a corpora tion of Delaware No Drawing. Application July 16, 1936, Serial No. 90,893. In Germany August 6, 1935 4 Claims. (Cl. 8—-6) My present invention relates to new mixtures Which appertains to the isodibenzanthrone series. comprising dyestu?s of at least one member of the group consisting of the dibenzanthrone and isodibenzanthrone series and of dyestuffs of a 5 member of the group consisting of alkaline con densation products of l-(Bzi-benzanthronyl ami no)—acylaminoanthraquinones (of. U. S. Patents Nos. 1,850,562, 1,877,947, 2,022,240 and 2,040,380) and of alkaline condensation products of poly 10 anthraquinonylaminobenzanthrones, containing one anthraquinonyl radicle in the Bzi-position, of. British speci?cation No. 337,741. The dyeings and prints obtained with the above mixtures yield full black shades of an excellent 15 fastness, particularly to washing and boiling so dium carbonate solution, and to an increased degree to light. - The shade may be varied by adding further dyestuffs. The processes of dyeing and printing 20 using the above mixture of dyestuffs are carried out in the manner customary for vat dyestuffs. Further, in accordance with my present inven tion mixtures of the dyestuffs of the above types may be produced in the dyeing liquor or printing 10 U! paste and the dyeing or printing likewise e?ected in the customary manner. In order to further illustrate my invention the following examples are given, the parts being by weight and all temperatures in degrees centi 30 grade. However, I wish it to be understood that my invention is not limited to the particular products therein. 35 nor reaction conditions mentioned Example 1 3 parts of the dyestuff obtained by acting with sulfuiylchloride on the benzoylated alkaline con densation product of Bzi-benzanthronyl-l-ami 4 no-5-aminoanthraquinone (of. U. S. Patent No. 2,022,240) are mixed with 2.3 parts of 2.2'-Bz-1' dibenzanthrone. On dyeing 100 parts of cotton with this mixture a bright bluish black shade is On dyeing 100 parts of cotton with this mixture a reddish black shade is obtained. Example 4 With a mixture of 3.6 parts of the dyestuff cited in Example 1 and 1.5 parts of tribromoiso dibenzanthrone on 100 parts of cotton a brigh neutral black shade is obtained. by acting with bromine on dibenzanthrone in the presence of chlorosulfonic acid on 100 parts of cotton a very full greenish black shade is ob tained. Example 6 When dyeing from the vat 100 parts of viscose 20 arti?cial silk with a mixture of 2 parts of the olive dyestuff obtained by benzoylating the al kaline condensation product of Bz1—benzanthron yl-1-amino-5-aminoanthraquinone and of 1.5 parts of 2.2’-Bz-1’-dibenzanthrone a bright bluish 25 black shade is obtained whereas a mixture of 2.3 parts of the olive and 1.3 parts of the blue dye stuff yields a full greenish black shade. Example 7 3.6 parts of the alkaline condensation product of di- (l'-anthraquinonyl) -6-Bz1-diaminobenzan throne are mixed with 1.8 parts of 2.2'-Bz-1' dibenzanthrone. When dyeing 100 parts of cot ton With this mixture a violet black shade is 35 obtained. Example 8 When dyeing 100 parts of cotton with a mix ture of 3.6 parts of the dyestuff cited in Example 7 and of 0.7 part of tribromoisodibenzanthrone a neutral black shade is obtained. 45 are mixed with 2.3 parts of 2.2'-Bz-1’-dibenzan throne and 0.5 part of the bluish red dyestuff obtained by introducing two ethyl groups into di pyrazolanthrone. On dyeing 100 parts of cotton 50 with this mixture a bright violetish black shade is obtained. Example 3 3.9 parts of the dyestuff cited in Example 1 are mixed with 2.1 parts of the dyestu?' indan 55 threne-brilliant violet RR (Schultz, No. 1,265), 0 Example 9 obtained. Example 2 2.7 parts of the dyestu? cited in Example 1 ' 10 Example 5 With a mixture of 4.2 parts of the dyestuff cited in Example 1 and 3.6 parts of the blue dyestuii of the dibenzanthrone series obtained When dyeing 100 parts of cotton with a mix ture of 3.2 parts of the dyestufi cited in Example 7 45 and of 1.6 parts of the blue dyestu? obtained by acting with bromine on dibenzanthrone in the presence of chlorosulfonic acid a bluish black shade is obtained. 50 I claim: 1. Mixtures of dyestuffs comprising dyestuffs of at least one member of the group consisting of the dibenzanthrone and isodibenzanthrone series, and of dyestuffs of a member of the group consisting of alkaline condensation products of CH 2,118,192 1 -(Bz1-- benzanthronylamino) -acylaminoanthra benzanthro'ne', which mixture yields bright bluish quinones and of alkaline condensation products black shades on cotton. of polyanthraquinonylaminobenzanthrones, con 3. A mixture of 2 parts of the olive dyestuff taining one anthraquinonyl radicle in the Bz1 obtained by benzoylating the alkaline condensa position, which mixtures yield on dyeing and tion product of Bz1-benzanthronyl-1-amino-5 printing vegetable ?bers therewith full black aminoanthraquinone and 1.5 parts of 2.2’-Bz-1’ shades of an excellent fastness, particularly to dibenzanthrone, which mixture yields full green washing and boiling sodium carbonate‘ solutions, ish black shades on cotton. and to an increased degree to light. 4. A mixture of 3.6 parts of the alkaline con 10 2. A mixture of dyestuffs consisting of 3 parts densation product of di-(1’-anthraquinony1)-6 10 of the 'dyestu? obtained by acting with sulfuryl Bz1-diaminobenzanthrone and 1.8 parts of 2.2’ chloride on the benzoylated alkaline condensation Bz-l'-dibenzanthrone, which mixture yields vio product of Bzi-benzanthronyl-1-amino-5-amino anthraquinone and 2.3 parts of 2.2'-Bz-1’-di letish black shades on cotton. 7 ROBERT GRETHER.