Detergent composition with a softening and protective action of natural fibres

Abstract

Detergent composition with a softening and protective action of natural fibers, preferably keratinic, characterized in that it has no cationic surface-active agents, and comprises: (a) surface-active agents selected from anionic, non-ionic and amphoteric surface-active agents and relative mixtures, preferably anionic; (b) esters having general formula (I): R 1 —CO—(—CH 2 —CH 2 —O—) a —R 2   (I)

1 . A detergent composition with a softening and protective action of natural fibres, preferably keratinic, characterized in that it has no cationic surface-active agents, and comprises: 
 (a) surface-active agents selected from anionic, non-ionic and amphoteric surface-active agents and relative mixtures;    (b) esters having general formula (I):    R 1 —CO—O—(—CH 2 —CH 2 —O—) a —R 2   (I)    wherein:    a is between zero and 20;    R 2  is a mono-functional hydrocarbon radical, having from 6 to 20 carbon atoms;    R 1  is a mono-functional hydrocarbon radical containing at least one hydroxyl and a number of carbon atoms equal to or higher than two, preferably selected from: 
 c1) —C 6 H n (OH) m , wherein n is between 3 and 4, m is between 1 and 2, the sum of m+n being equal to 5;  
 c2) —CH(OH)—CH(R 3 )—COO—(—CH 2 —CH 2 —O—) a —R 4 , wherein R 3 =H or OH; a′ is between 0 and 20, and R 4  is a mono-functional hydrocarbon radical, preferably alkyl, having from 6 to 20 carbon atoms;  
 c3) —CH(OH)—CH 3 ;  
   the weight ratio between the surface-active agents (a) and the esters having general formula (I) ranging from 1/1 to 600/1, preferably from 1.5/1 to 400/1.    
     
     
         2 . The composition according to  claim 1 , wherein the surface-active agents (a) are anionic.  
     
     
         3 . The composition according to  claim 1 , wherein a=0.  
     
     
         4 . The composition according to  claim 3 , wherein R 2  is a mono-functional alkyl radical having from 8 to 18 carbon atoms.  
     
     
         5 . The composition according to  claim 1 , wherein R 1  is selected from: 
 c1) —C 6 H 4 (OH);    c2) —CH(OH)—CH(R 3 ) —COO—(—CH 2 —CH 2 —O—) a —R 4 , wherein R 3 =H or OH; a′ is zero;    c3) —CH(OH)—CH 3 .    
     
     
         6 . Use as a detergent with a softening effect of a formulation comprising the composition according to  claim 1 , the ratio between the surface-active agents and esters having general formula (I) ranging from 200/1 to 5/1, preferably from 100/1 to 10/1, the concentration of the above surface-active agents in the formulation being from 10 to 40% by weight, the complement to 100 consisting of water and minor components.  
     
     
         7 . Use as a softening agent in the rinsing phase of a formulation according to  claim 1 , the ratio between surface-active agents and esters having general formula (I) ranging from 50/1 to 0.75/1, preferably from 20/1 to 1.5/1, the weight concentration of the surface-active agents in the above formulations being from 2 to 8% by weight, the complement to 100 consisting of water and minor components.  
     
     
         8 . Use in textile finishing of a formulation comprising the composition according to  claim 1 , the ratio between the surface-active agents and esters having general formula (I) ranging from 10/1 to 1.5/1, preferably from 5/1 to 2/1, the concentration of the surface-active agents being from 3 to 10%, the complement to 100 consisting of water and minor components.  
     
     
         9 . Use as hair shampoo of a formulation comprising the composition according to  claim 1 , the ratio between surface-active agents and esters having general formula (I) ranging from 100/1 to 10/1, preferably from 40/1 to 5/1, the concentration of surface-active agents being from 7 to 20% by weight, the complement to 100 consisting of water and minor components.