Method of dyeing or printing cellulose-containing fibre materials using disperse dyes

Abstract

A method of dyeing or printing cellulose-containing fibre materials using disperse dyes that comprises treating the fibre material with an aqueous composition comprising a watersoluble or water-dispersible polyester resin and a water-soluble or water-dispersible acrylate binder produces level dyeings and prints having good allround fastness properties and is advantageously suitable for cellulose-containing fibre blends, for example blends consisting of polyester and cellulose.

1 . A method of dyeing or printing cellulose-containing fibre material using a disperse dye which comprises treating the fibre material with an aqueous composition comprising a water-soluble or water-dispersible polyester resin and a water-soluble or water-dispersible acrylate binder.  
     
     
         2 . A method according to  claim 1 , wherein the disperse dye corresponds to formula  
       
         
           
           
               
               
           
         
       
       wherein 
 R 1  is halogen, nitro or cyano,  
 R 2  is hydrogen, halogen, nitro or cyano,  
 R 3  is hydrogen, halogen or cyano,  
 R 4  is hydrogen, halogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy,  
 R 5  is hydrogen, halogen or C 2 -C 4 alkanoylamino and  
 R 6  and R 7  are each independently of the other hydrogen, allyl, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, cyano, C 1 -C 4 alkoxy, C 1 -C 4 alkoxy-C 1 -C 4 alkoxy, C 2 -C 4 alkanoyloxy, C 1 -C 4 alkoxycarbonyl, phenyl or by phenoxy,  
                     
 wherein  
 R 8  is hydrogen, phenyl or phenylsulfonyl, the benzene ring in phenyl and phenylsulfonyl being unsubstituted or substituted by C 1 -C 4 alkyl, sulfo or by C 1 -C 4 alkylsulfonyloxy,  
 R 9  is unsubstituted or C 1 -C 4 alkyl-substituted amino or is hydroxy,  
 R 10  is hydrogen or C 1 -C 4 alkoxy,  
 R 11  is hydrogen, C 1 -C 4 alkoxy, phenoxy or the radical —O—C 6 H 5 —SO 2 —NH—(CH 2 ) 3 —O—C 2 H 5 ,  
 R 12  is hydrogen, hydroxy or nitro and  
 R 13  is hydrogen, hydroxy or nitro,  
                     
 wherein  
 R 14  is C 1 -C 4 alkyl unsubstituted or substituted by hydroxy or by phenyl or is phenyl,  
 R 15  is C 1 -C 4 alkyl,  
 R 16  is cyano,  
 R 17  is a radical of formula —(CH 2 ) 3 —O—(CH 2 ) 2 —O—C 6 H 5 , phenyl, or C 1 -C 4 alkyl substituted by hydroxy or by phenyl,  
 R 18  is halogen, nitro or cyano and  
 R 19  is hydrogen, halogen, nitro, trifluoromethyl or cyano,  
                     
 wherein  
 R 20  is C 1 -C 4 alkyl,  
 R 21  is C 1 -C 4 alkyl unsubstituted or substituted by C 1 -C 4 alkoxy and  
 R 22  is the radical —COOCH 2 CH 2 OC 6 H 5  and R 23  is hydrogen or  
 R 22  is hydrogen and R 23  is —N═N—C 6 H 5 ,  
                     
 wherein the rings A and B are unsubstituted or mono- or poly-substituted by halogen,  
                     
 wherein  
 R 24  is C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, C 1 -C 4 alkoxy, C 1 -C 4 alkoxy-C 1 -C 4 alkoxy C 2 -C 4 alkanoyloxy or by C 1 -C 4 alkoxycarbonyl,  
                     
 wherein  
 R 25  is C 1 -C 4 alkyl,  
 R 26  is C 1 -C 4 alkyl unsubstituted or substituted by C 1 -C 4 alkoxy,  
 R 27  is hydrogen, C 1 -C 4 alkoxy or halogen and  
 R 28  is hydrogen, nitro, halogen or phenylsulfonyloxy,  
                     
 wherein  
 R 29 , R 30 , R 3 , and R 32  are each independently of the others hydrogen or halogen,  
 R 33  is hydrogen, halogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy,  
 R 34  is hydrogen, halogen or acylamino and  
 R 35  and R 36  are each independently of the other hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, cyano, acetoxy or by phenoxy,  
 or the dye of formula  
                     
 wherein  
 R 37  is hydrogen or halogen,  
                     
 wherein  
 R 38  is hydrogen, C 1 -C 4 alkyl, tetrahydrofuran-2-yl, or a C 1 -C 4 alkoxycarbonyl radical unsubstituted or substituted in the alkyl moiety by C 1 -C 4 alkoxy,  
                     
 wherein  
 R 39  is hydrogen, or thiophenyl unsubstituted or substituted in the phenyl moiety by C 1 -C 4 alkyl or by C 1 -C 4 alkoxy,  
 R 40  is hydrogen, hydroxy, amino, or phenylcarbonylamino wherein the phenyl moiety is unsubstituted or substituted by C 1 -C 4 alkyl,  
 R 41  is hydrogen, halogen, cyano, or thiophenyl, phenoxy or phenyl each of which is unsubstituted or substituted in the phenyl moiety by C 1 -C 4 alkyl or by C 1 -C 4 alkoxy and R 42  is phenyl unsubstitued or substited in the phenly moity be halogen, C 1 -C 4 alkyl or by C 1 -C 4 alkoxy,  
                     
 wherein  
 R 43  is hydrogen or C 1 -C 4 alkyl,  
 R 44  and R 45  are each independently of the other hydrogen, halogen, nitro or cyano,  
 R 46  is hydrogen, halogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy,  
 R 47  is hydrogen, halogen or C 2 -C 4 alkanoylamino and  
 R 48  and R 49  are each independently of the other hydrogen, or C 1 -C 4 alkyl unsubstituted or substituted by hydroxy, cyano, C 1 -C 4 alkoxy, C 1 -C 4 alkoxy-C 1 -C 4 alkoxy, C 2 -C 4 alkanoyloxy, C 1 -C 4 alkoxycarbonyl, phenyl or by phenoxy, or  
                     
 wherein  
 R 50  is hydrogen or C 1 -C 4 alkyl,  
 R 51  is phenyl or phenylcarbonyl, in each of which the phenyl moiety may be substituted by C 1 -C 4 alkyl,  
 R 52  and R 53  are each independently of the other hydrogen, C 1 -C 4 alkyl or C 1 -C 4 alkoxy and  
 R 54  is hydrogen or C 1 -C 4 alkyl.  
 
     
     
         3 . A method according to  claim 1 , wherein the aqueous composition additionally comprises a crosslinking agent.  
     
     
         4 . A method according  claim 1 , wherein the aqueous composition additionally comprises an agent imparting soft-handle properties.  
     
     
         5 . A method according to  claim 1 , wherein the treatment of the fibre material with the aqueous composition is carried out as a pretreatment prior to the material being brought into contact with the disperse dye.  
     
     
         6 . A method according to  claim 5 , wherein the fibre material impregnated with the aqueous composition in a pretreatment step is dried and the applied polymer matrix is condensed.  
     
     
         7 . A method according to  claim 1 , wherein, after the dyeing procedure, a further treatment of the fibre material with the aqueous composition is carried out.  
     
     
         8 . A method according to  claim 1 , wherein the cellulose-containing fibre material is a fibre blend.  
     
     
         9 . A method according to  claim 1 , wherein the cellulose-containing fibre material is a fibre blend consisting of cellulose and polyester.  
     
     
         10 . A method according to  claim 1 , wherein the ratio by weight of polyester resin to acrylate binder in the composition is from 4:1 to 1:1.