公开(公告)号：CA1106839A

公开(公告)日：1981-08-11

申请号：CA315742

申请日：1978-11-02

Applicant: HOECHST AG

Inventor： HOYER ERNST ,  MEININGER FRITZ ,  NOLL WALTER ,  FASS RUDOLF

IPC: C09B62/44 ,  C09B62/513 ,  C09B62/515 ,  D06P1/38 ,  D06P3/14 ,  D06P3/66 ,  C09B31/02 ,  C09B45/24 ,  D06P1/06

Abstract: The novel water-soluble disazo dyestuffs consists of two monoazo dyestuff moleties each containing as diazo component an amine of the benzene or naphthalene series and as coupling component an amino-naphthol-mono- or disulfonic acid. The two moieties are bonded to each other via a triazine radical carrying a halogen atom, a sulfonic acid group or a thio ether or oxygen ether group and is bound to the amino groups of the coupling components and the diazo components contain a fiber-reactive radical of the vinyl sulfone series. To produce the dyestuffs 2 mols of the diazo component carrying the fiber-reactive radical of the vinyl sulfone series is coupled with 1 mol of a bivalent coupling component consisting of 2 radicals of the aminonaphthol bound to the triazine ring via the amino groups, or two monoazo dyestuffs each synthesized from the aforesaid diazo component and an aminonaphthol coupling component are reacted with a 1,3-dihalogeno-triazine containing in 5-position a further halogen atom, a sulfonic acid group, a thio ether, or an oxygen ether group. The metal-free dyestuffs, can be transformed into the corresponding heavy metal complex dyestuffs, preferably copper, cobalt and chromium complex dyestuffs, by treatment with an agent donating a heavy metal cation. The novel dyestuffs are excellently suitable for dyeing and printing fiber material of natural and regenerated cellulose and natural, regenerated and synthetic polyamides. They are distinguished by clear shades, high tinctorial strength, a very good uptake from a long liquor and a good color-build up. The dyeings obtained therewith have a high fastness to processing and in use.

公开(公告)号：AU6898674A

公开(公告)日：1975-11-20

申请号：AU6898674

申请日：1974-05-15

Applicant: HOECHST AG

Inventor： FUCHS HERMANN ,  KONRAD HERMANN HEINZ ,  HAHNLE REINHARD ,  NOLL WALTER ,  BREDERICK JOACHIM

IPC: C09B62/51 ,  C09B29/16

公开(公告)号：AU3752371A

公开(公告)日：1973-07-05

申请号：AU3752371

申请日：1971-12-31

Applicant: HOECHST AG

Inventor： MEININGER FRITZ ,  NOLL WALTER

IPC: C09B62/507 ,  C09B29/02 ,  C09B29/04

Abstract: 1330601 Reactive monoazo dyes FARBWERKE HOECHST AG 3 Jan 1972 [2 Jan 1971] 82/72 Heading C4P New water-soluble reactive monoazo dyes of formula wherein R is H or C 1-4 alkyl, X is H, OH, OCH 3 , OC 2 H 5 , COOH or SO 3 H, Y is H, CH 3 , C 2 H 5 , OCH 3 , OC 2 H 5 or SO 3 H and n is 0 or 1 and copper complexes of formula are prepared by azo coupling using diazo components containing -SO 2 -CH 2 -CH 2 - O-SO 3 H or -SO 2 -CH 2 - CH 2 -OH groups and then in either order coppering if desired and sulphating the hydroxyalkyl compounds where necessary. The dyes yield yellowish orange to reddish blue shades by the usual reactive dyeing processes on wool, silk, synthetic polyamide and, preferably, cellulose fibres.

公开(公告)号：CA790045A

公开(公告)日：1968-07-16

申请号：CA790045D

Applicant: HOECHST AG

Inventor： MEININGER FRITZ ,  HOYER ERNST ,  NOLL WALTER