Cellulosic textiles treated with hyperbranched polyethyleneimine derivatives

Abstract

The present disclosure is directed to cellulosic textiles treated with h-PEI derivatives, such derivatives possessing the general structure shown below: (R) x−h-PEI−(A) y where R is a non-hyperbranched hydrocarbon group (for example, such as alkyl, alkenyl, arylalkyl, and arylalkenyl groups, where the number of carbon atoms in the linear portion of the hydrocarbon is between 5 and 30 carbon atoms), where x is a number from 1 to about 10,000 (depending on the M n of the h-PEI), where h-PEI is a hyperbranched polyethyleneimine, where A is a small organic “capping” compound having from 1 to 4 carbon atoms, where y is a number from 0 to 10,000, and wherein R is present in an approximate amount of between about 20% and about 75% by weight of the h-PEI derviative. The chemical treatment imparts durable colorfastness, softness, wrinkle resistance, and reduced drying time to substrates treated therewith.

1 . A treated textile substrate, said treated textile fabric comprises:
 (a) a cellulosic textile substrate; and   (b) a treatment applied to at least one side of said textile substrate, said treatment comprising:
 a water-insoluble hyperbranched polyethyleneimine derivative of the formula:
   (R) x −h-PEI−(A) y    
 
   where R is a non-hyperbranched hydrocarbon group, said hydrocarbon group having at least one linear portion, said linear portion having between 5 and 30 carbon atoms; where x is a number from 1 to 10,000; where h-PEI is a hyperbranched polyethyleneimine; where A is an organic compound having from 1 to 4 carbon atoms; where y is a number from 0 to 10,000; and wherein R is present in an amount of between about 20% and about 75% by weight of said hyperbranched polyethyleneimine derivative.   
     
     
         2 . The treated textile substrate of  claim 1 , wherein said substrate is a fabric. 
     
     
         3 . The treated textile substrate of  claim 1 , wherein said treatment is applied to said substrate at an add-on level of between about 0.1% to about 10%, based on the weight of said substrate. 
     
     
         4 . The treated textile substrate of  claim 3 , wherein said treatment is applied to said substrate at an add-on level of between about 0.2% to about 5%, based on the weight of said substrate. 
     
     
         5 . The treated textile substrate of  claim 1 , wherein said h-PEI has a number average molecular weight (M n ) in the range of about 300 to about 2 million. 
     
     
         6 . The treated textile substrate of  claim 5 , wherein said h-PEI has a number average molecular weight (M n ) in range of about 1,000 to about 75,000. 
     
     
         7 . The treated textile substrate of  claim 1 , wherein said linear portion of said R group has between about 10 and about 24 carbon atoms. 
     
     
         8 . The treated textile substrate of  claim 1 , wherein said h-PEI and said R group are present, in a weight ratio, of from about 5:1 to about 1:10. 
     
     
         9 . The treated textile substrate of  claim 8 , wherein said h-PEI and said R group are present, in a weight ratio, of from about 2:1 to about 1:5. 
     
     
         10 . The treated textile substrate of  claim 9 , wherein said h-PEI and said R group are present, in a weight ratio, of from about 1:1 to about 1:4. 
     
     
         11 . The treated textile substrate of  claim 1 , wherein said A group is at least one compound selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, methyl, acetate, vinyl sulfonate, trifluoroacetate, and trialkyl silyl. 
     
     
         12 . The treated textile substrate of  claim 11 , wherein said A group is ethylene oxide or propylene oxide. 
     
     
         13 . The treated textile substrate of  claim 1 , wherein said R group has a C 17 H 35  structure, resulting in a stearic amide linkage between said R group and said h-PEI. 
     
     
         14 . The treated textile substrate of  claim 1 , wherein said treatment further comprises a cross-linking agent. 
     
     
         15 . A process of treating a textile substrate, said process comprising:
 (a) providing a cellulosic textile substrate;   (b) providing a dispersion of hyperbranched polyethyleneimine derivative, said hyperbranched polyethyleneimine derivative being of the formula:
   (R) x −h-PEI−N−(A) y    
   where R is a non-hyperbranched hydrocarbon group, said hydrocarbon group having at least one linear portion, said linear portion having between 5 and 30 carbon atoms; where x is a number from 1 to 10,000; where h-PEI is a hyperbranched polyethyleneimine; where A is an organic compound having between 1 to 4 carbon atoms; where y is a number from 0 to 10,000; and wherein R is present in an amount of between about 20% and about 75% by weight of said hyperbranched polyethyleneimine derivative, said dispersion containing said hyperbranched polyethylene derivative being produced by:
 (i) providing said hyperbranched polyethyleneimine derivative, a solubilizing agent, and water, said water having a temperature at least equal to the melting point of said hyperbranched polyethyleneimine derivative; and 
 (ii) subjecting said hyperbranched polyethyleneimine derivative, said solubilizing agent, and said water to high speed and high shear agitation; 
   (c) applying said dispersion to said textile substrate; and   (d) drying said textile substrate.   
     
     
         16 . The process of  claim 15 , wherein said textile substrate is a fabric. 
     
     
         17 . The process of  claim 15 , wherein said solubilizing agent is acetic acid. 
     
     
         18 . The process of  claim 15 , wherein said dispersion further comprises a cross-linking agent. 
     
     
         19 . The process of  claim 15 , wherein heat is applied during step (i) or step (ii) to facilitate formation of said dispersion.