Method of preparing fabrics having lotus leaf effect and fabrics having lotus leaf effect

Abstract

The subject invention relates to a method of preparing fabrics having a lotus leaf effect. The subject invention also relates to fabrics having a lotus leaf effect.

1 . A method of preparing a fabric having a lotus leaf effect, comprising, after a dyeing step and a drying step, a surface modification of the fabric and a treatment of the fabric with a hydrophobic reagent.  
   
   
       2 . A method according to  claim 1 , wherein said surface modification comprises a plasma treatment, a corona treatment, a chemical etching treatment and an adhesive treatment.  
   
   
       3 . A method according to  claim 1 , wherein said hydrophobic reagent comprises a silicone resin and a fluorocarbon.  
   
   
       4 . A method according to  claim 2 , wherein an adhesive used in the adhesive treatment is a polyisocyanate of a general formula of R—N═C═O, wherein R is C 5 -C 20  alkyl.  
   
   
       5 . A method according to  claim 4 , wherein said polyisocyanate is polyhexylisocyanate, polyoctylisocyanate, polynonylisocyanate or polydodecanylisocyanate.  
   
   
       6 . A method according to  claim 3 , wherein said fluorocarbon is a compound of a formula of R—X, wherein R is C 1 -C 15  alkyl, X is (CF 2 ) n , n is from 1 to 9.  
   
   
       7 . A method according to  claim 6 , wherein said fluorocarbon is a compound of a formula of R—X, wherein R is C 7 -C 10  alkyl, X is (CF 2 ) n , n is from 3 to 6.  
   
   
       8 . A method according to  claim 1 , wherein said fabric is laundered according to procedures of JIS L02173-103 and tested according to AATCC test method 22 while retaining excellent waterproofing and stainproofing abilities.  
   
   
       9 . A fabric having a lotus leaf effect, said fabric has been treated by a surface modification and a hydrophobic reagent.  
   
   
       10 . A fabric according to  claim 9 , wherein said surface modification treatment comprises a plasma treatment, a corona treatment, a chemical etching treatment or an adhesive treatment.  
   
   
       11 . A fabric according to  claim 9 , wherein said hydrophobic reagent comprises a silicone resin and a fluorocarbon.  
   
   
       12 . A fabric according to  claim 10 , wherein said adhesive used in the adhesive treatment is a polyisocyanate of a general formula R—N═C═O, wherein R is C 5 -C 20  alkyl.  
   
   
       13 . A fabric according to  claim 12 , wherein said polyisocyanate is polyhexylisocyanate, polyoctylisocyanate, polynonylisocyanate or polydodecanylisocyanate.  
   
   
       14 . A fabric according to  claim 11 , wherein said fluorocarbon is a compound of a formula of R—X, wherein R is C 1 -C 15  alkyl, X is (CF 2 ) n , n is from 1 to 9.  
   
   
       15 . A fabric according to  claim 14 , wherein said fluorocarbon is a compoound of a formula of R—X, wherein R is C 7 -C 10  alkyl, X is (CF 2 ) n , n is from 3 to 6.  
   
   
       16 . A fabric according to  claim 9 , wherein said fabric is laundered according to procedures of JIS L02173-103 and tested according to AATCC test method 22 while retaining excellent waterproofing and stainproofing abilities.