Method for the trichromatic dyeing or printing of synthetic polyamide fibre materials

Abstract

Method for the trichromatic dyeing or printing of synthetic polyamide fiber material, wherein at least one red reactive dye of formula is used together with at least one of the yellow or orange reactive dyes of formulae and at least one blue reactive dye of formula in which formulae the variables are as defined in claim 1, which method is distinguished by a uniform color build-up and a very good combinability.

What is claimed is  
     
         1 . A method for the trichromatic dyeing or printing of synthetic polyamide fibre material, in which at least one red reactive dye of formula  
       
         
           
           
               
               
           
         
         is used together with at least one of the yellow or orange reactive dyes of formulae  
         
           
             
             
                 
                 
             
           
         
         and at least one blue reactive dye of formula  
         
           
             
             
                 
                 
             
           
         
          in which formulae  
         R 1 , R 4 , R 6 , R 10 , R 15  and R 16  are each independently of the others hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano,  
         R 2 , R 5 , R 7 , R 13  and R 14  are each independently of the others hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoylamino, ureido, sulfamoyl, halogen, sulfo or carboxy,  
         R 3  is amino or N-mono- or N,N-di-C 1 -C 4 alkylamino,  
         R 8  is hydrogen, sulfomethyl, carbamoyl or cyano,  
         R 9  is C 1 -C 4 alkyl,  
         R 11 , and R 12  are each independently of the other hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, halogen, sulfo or carboxy,  
         B is a C 2 -C 6 alkylene radical, which may be interrupted by 1, 2 or 3—O— members and which is unsubstituted or substituted by hydroxy or by sulfato, or  
         a cyclohexylene radical or methylene-cyclohexylene radical each of which is unsubstituted or substituted by C 1 -C 4 alkyl, or  
         a phenylene or methylene-phenylene-methylene radical each of which is unsubstituted or substituted by C 1 -C 4 alkyl, C 1 -C 4 alkoxy, halogen or by sulfo,  
         I is the number 0 or 1,  
         k is the number 1, 2 or 3, and  
         V 1  is a radical of formula  
         
           
             
             
                 
                 
             
           
         
          in which formulae  
         R 17  and R 19  are each independently of the other hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano,  
         R 18  is C 1 -C 4 alkyl, C 1 -C 4 alkoxy, halogen or sulfo,  
         Z is the radical —CH═CH 2  or —CH 2 —CH 2 —Y and Y is a leaving group,  
         m is the number 0, 1 or 2,  
         n is the number 0 or 1, and  
         V 2 , V 3 , V 4  und V 5  are each independently of the others a radical of the above-indicated formula (6a), (6b), (6c) or (6d) or a radical of formula  
         
           
             
             
                 
                 
             
           
         
          wherein  
         R 20  is hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano, and  
         X is a radical  
         
           
             
             
                 
                 
             
           
         
          and Hal is bromine or chlorine, with the proviso that  
         the dye of formula (1) contains two sulfo groups.  
       
     
     
         2 . A method according to  claim 1 , wherein 
 R 1 , R 4 , R 6 , R 10 , R 15 , R 16 , R 17 , R 19  and R 20  are each hydrogen.    
     
     
         3 . A method according to  claim 1 , wherein 
 R 2 , R 5 , R 7 , R 13  and R 14  are each independently of the others hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoylamino, ureido, sulfo or carboxy, and    R 11  and R 12  are each independently of the other hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or sulfo.    
     
     
         4 . A method according to  claim 1 , wherein 
 R 8  is hydrogen, sulfomethyl or carbamoyl.    
     
     
         5 . A method according to  claim 1 , wherein 
 B is a C 2 -C 6 alkylene radical, a methylene-cyclohexylene radical unsubstituted or substituted by C 1 -C 4 alkyl, or a phenylene or methylene-phenylene-methylene radical each of which is unsubstituted or substituted by C 1 -C 4 alkyl, C 1 -C 4 alkoxy, halogen or by sulfo.    
     
     
         6 . A method according to  claim 1 , wherein 
 B is a radical of formula                          
     
     
         7 . A method according to  claim 1 , wherein 
 I is the number 0.    
     
     
         8 . A method according to  claim 1 , wherein 
 V 1 , V 2 , V 3 , V 4  and V 5  are each independently of the others a radical of formula (6c) or (6d) in which R 17 , R 18 , R 19 , Z, m and n are as defined in  claim 1 .    
     
     
         9 . A method according to  claim 1 , wherein 
 m is the number 0.    
     
     
         10 . A method according to  claim 1 , wherein 
 n is the number 0.    
     
     
         11 . A method according to  claim 1 , wherein 
 R 1  is hydrogen, R 2  is sulfo, R 3  is amino, I is the number 0, and V 1  is a radical of formula (6c) in which R 17  is hydrogen, Z is vinyl and m is the number 0.    
     
     
         12 . A method according to  claim 1 , wherein the reactive dye of formula (1) is a reactive dye  
       
         
           
           
               
               
           
         
       
     
     
         13 . A method according to  claim 1 , wherein an aftertreatment is carried out at a pH value of from 7 to 12 and a temperature of from 30 to 100° C.  
     
     
         14 . A method according to  claim 13 , wherein 
 a reducing agent is added to the aftertreatment bath.    
     
     
         15 . A reactive dye of formula  
       
         
           
           
               
               
           
         
         wherein  
         R 1  and R 17  are each independently of the other hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, sulfo, sulfato, carboxy or by cyano and  
         Z is the radical —CH═CH 2  or —CH 2 —CH 2 —Y and Y is a leaving group.  
       
     
     
         16 . A process for dyeing or printing natural or synthetic polyamide fibre material, which comprises applying to said fibre material a reactive dye of formula (1b) according to  claim 15 .  
     
     
         17 . A process according to  claim 16 , for dyeing or printing synthetic polyamide fibre material.