Azo dyes, containing a triazine middle component and a monoazo and a disazo dye radical

• Main Author: LAUK; URS
• Format: Patent
• Language: English
• Published: 17.06.1997
• Edition: 6
• Subjects: ADHESIVES; CHEMISTRY; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAKES; LAUNDERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; POLISHES; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

Azo dyes of formula (1) wherein R1 and R2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl, R3, R4, R5, R6 and R7 are each independently of one another hydrogen, halogen, sulfo, carbamoyl, carboxy, unsubstituted or hydroxy-substituted C1-C4alkyl or C1-C4alkoxy; C2-C4alkanoylamino which is unsubstituted or substituted in the alkyl moiety by hydroxy or C1-C4alkoxy, or ureido which is unsubstituted or substituted in the amino end group by one or two C1-C4alkyl groups, Y1 is hydroxy, halogen, C1-C4alkoxy, C1-C4alkylthio, amino; N-mono-C1-C4alkylamino or N,N-di-C1-C4alkylamino, each of which is unsubstituted or substituted in the alkyl moiety by hydroxy, sulfo, carboxy or C1-C4alkoxy; C5-C7cycloalkylamino which is unsubstituted or substituted in the cycloalkyl ring by C1-C4alkyl; phenylamino or N-C1-C4alkyl-N-phenylamino, each of which is unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, carboxy, sulfo or halogen; morpholino or piperidin-1-yl, and A1 is the radical of a metal-free monoazo dye, are direct dyes for different substrates, in particular cellulosic fibre materials. Said dyes are high-temperature resistant and are therefore particularly suitable for the one-bath, single-step dyeing of polyester/cotton blends with a disperse dye for polyester fibres under the dyeing conditions for polyester fibres. Azo dyes of formula (1) wherein R1 and R2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl, R3, R4, R5, R6 and R7 are each independently of one another hydrogen, halogen, sulfo, carbamoyl, carboxy, unsubstituted or hydroxy-substituted C1-C4alkyl or C1-C4alkoxy; C2-C4alkanoylamino which is unsubstituted or substituted in the alkyl moiety by hydroxy or C1-C4alkoxy, or ureido which is unsubstituted or substituted in the amino end group by one or two C1-C4alkyl groups, Y1 is hydroxy, halogen, C1-C4alkoxy, C1-C4alkylthio, amino; N-mono-C1-C4alkylamino or N,N-di-C1-C4alkylamino, each of which is unsubstituted or substituted in the alkyl moiety by hydroxy, sulfo, carboxy or C1-C4alkoxy; C5-C7cycloalkylamino which is unsubstituted or substituted in the cycloalkyl ring by C1-C4alkyl; phenylamino or N-C1-C4alkyl-N-phenylamino, each of which is unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, carboxy, sulfo or halogen; morpholino or piperidin-1-yl, and A1 is the radical of a metal-free monoazo dye, are direct dyes for different substrates, in particular cellulosic fibre materials. Said dyes are high-temperature resistant and are therefore particularly suitable for the one-bath, single-step dyeing of polyester/cotton blends with a disperse dye for polyester fibres under the dyeing conditions for polyester fibres.