Process for printing or dyeing cellulose/polyester mixed fibres

Abstract

The invention relates to a process for printing or dyeing cellulose fibres or cellulose/polyester mixed fibres characterised in that the fibres are treated in any sequence with water, a watersoluble organic solvent having a boiling point >150° C. and a specific disperse dye.

1 . A process for printing or dyeing cellulose fibres or cellulose/polyester mixed fibres characterised in that the fibres are treated in any sequence with water, a water-soluble organic solvent having a boiling point>150° C. and a disperse dye selected from the compounds of formulae (1) to (10)  
       
         
           
           
               
               
           
         
         wherein R 1  and R 2  are each independently of the other C 1 -C 8 -alkyl, —(CH 2 ) n —O—(CH 2 ) m R 5 ,  
         wherein R 5  denotes hydrogen or C 1 -C 8 -alkyl, n is a number from 2 to 6 and m is a number from 0 to 6, C aryl, which is unsubstituted or substituted with one or more hydroxy groups, C 1 -C 8 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms or C 6 -C 30 aralkyl, which is unsubstituted or substituted with one or more hydroxy groups, C 1 -C 4 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms,  
         R 3  and R 4  are each independently of the other chlorine, bromine, cyano, methyl or trifluoromethyl,  
         X is a radical of formula (1a), (1b), (1c) or (1d)  
         
           
             
             
                 
                 
             
           
         
         wherein R 6  and R 7  independently of the other represent hydrogen, chlorine, bromine or cyano,  
         R 8  denotes C 1 -C 8 -alkyl or —(CH 2 ) n —O—(CH 2 ) m R 5 , wherein R 5  denotes hydrogen or C 1 -C 8 -alkyl, n is a number from 2 to 6 and m is a number from 0 to 6,  
         R 9  is hydrogen, fluorine, chlorine, bromine, cyano, methyl, trifluoromethyl or —SO 2 CH 3  and  
         R 10  represents hydrogen, hydroxy or amino;  
         
           
             
             
                 
                 
             
           
         
         wherein R 11 , denotes a radical of formula (2a), (2b), (2c) or (2d)  
         
           
             
             
                 
                 
             
           
         
         wherein R 17  is hydrogen, chlorine, bromine, methyl or methoxy,  
         R 18  is hydrogen, phenylamino, benzamido or C 1 -C 12 acylamido,  
         one of the radicals R 12 , R 13  and R 14  denotes a radical of formula (2a), (2b), (2c) or (2d) as defined above and the others are hydrogen, and  
         R 15  and R 16  are each independently of the other hydrogen, bromine or chlorine;  
         
           
             
             
                 
                 
             
           
         
         wherein R 19  denotes C 1 -C 8 alkyl or —(CH 2 ) n —O—(CH 2 ) m —OR 20 , and R 20  is hydrogen, methyl or ethyl, n denotes a number from 2 to 6 and m denotes a number from 0 to 6;  
         
           
             
             
                 
                 
             
           
         
         wherein R 21  is C 1 -C 8 alkyl, C 5 -C 24 aryl, which is unsubstituted or substituted with one or more hydroxy groups, C 1 -C 8 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms or C 6 -C 30 aralkyl, which is unsubstituted or substituted with one or more hydroxy groups, C 1 -C 4 alkyl groups, C 1 -C 4 alkoxy groups or halogen atoms;  
         
           
             
             
                 
                 
             
           
         
         wherein R 22  and R 23  are each independently of the other hydrogen, bromine or chlorine;  
         
           
             
             
                 
                 
             
           
         
         wherein R 24  denotes chlorine, bromine, cyano or —CONH 2 ,  
         R 25  is C 1 -C 20 alkyl or —(CH 2 ) n —O—(CH 2 ) m R 5 , wherein R 5  denotes hydrogen or C 1 -C 8 -alkyl, n is a number from 2 to 6 and m is a number from 0 to 6,  
         D is a radical of formula (1c) as defined above or a radical of formula (6a)  
         
           
             
             
                 
                 
             
           
         
         wherein R 9 , R 10  and R 25  are as defined above;  
         
           
             
             
                 
                 
             
           
         
         wherein R 26  denotes C 1 -C 12 alkoxy;  
         
           
             
             
                 
                 
             
           
         
         wherein Me denotes Cu, Ni, Zn or Pd,  
         R 27  is hydrogen, C 1 -C 12 alkoxy or —SO 2 —NH—R 25  and R 25  is as defined above;  
         
           
             
             
                 
                 
             
           
         
         wherein R 28  and R 29  are each independently of the other a radical of formula (2b) or (2d) as defined above;  
         
           
             
             
                 
                 
             
           
         
         wherein R 8  and R 17  are as defined above.  
       
     
     
         2 . A process according to  claim 1 , characterised in that a compound of formula (1) is used as disperse dye, wherein R 3  is cyano and R 4  is methyl.  
     
     
         3 . A process according to  claim 2 , characterised in that a compound of formula (1) is used as disperse dye, wherein X is a radical of formula (1a), (1b) or (1d).  
     
     
         4 . A process according to  claim 3 , characterised in that the disperse dye is a compound of formula (101) or (102)  
       
         
           
           
               
               
           
         
       
     
     
         5 . A process according to  claim 1 , characterised in that the organic solvent is polyethylene glycol, polypropylene glycol or an ether or ester derivative of polyethylene glycol or polypropylene glycol.  
     
     
         6 . A process according to  claim 5 , characterised in that the organic solvent is polyethylene glycol having a molecular weight of 100 to 600.  
     
     
         7 . A process according to  claim 1 , characterised in that water, organic solvent and disperse dye are contemporaneously applied to the fibre.  
     
     
         8 . A printing process according to  claim 1 , characterised in that the printing paste contains 50 to 95% by weight of water, based on the total weight of the printing paste.  
     
     
         9 . A printing process according to  claim 1 , characterised in that the printing paste contains 1 to 20% by weight of organic solvent, based on the total weight of the printing paste.  
     
     
         10 . A printing process according to  claim 1 , characterised in that the printing paste contains 1 to 15% by weight of a dye dispersion, based on the total weight of the printing paste.  
     
     
         11 . A dyeing process according to  claim 1 , characterised in that the fibres are heated in a liquor at 125° C. to 225° C., said liquor containing as liquid ingredients 10 to 95% by weight of water and 5 to 90% by weight of organic solvent.  
     
     
         12 . A process according to  claim 1 , characterised in that the fibres are cotton/polyester mixed fibres.