Method for strengthening a nonwoven fabric

Abstract

The invention relates to a method for strengthening a nonwoven fabric by means of a water jet treatment. The method according to the invention is characterized in that the nonwoven fabric contains flat fibers in the form of collapsed hollow viscose fibers with a ratio of width B to thickness D of B:D≥10:1.

1 . A method for strengthening a nonwoven fabric by means of a water jet treatment, characterized in that the nonwoven fabric comprises flat fibers in the form of collapsed hollow viscose fibers with a ratio of width B to thickness D of B:D≥10:1. 
     
     
         2 . A method according to  claim 1 , characterized in that the flat fibers have a ratio B:D ranging from 10:1 to 30:1, preferably of 20:1. 
     
     
         3 . A method according to  claim 1  or  2 , characterized in that the flat fibers have a titer ranging from 0.9 to 5 dtex, preferably from 1.3 to 1.9 dtex. 
     
     
         4 . A method according to any of the preceding claims, characterized in that the amount of flat fibers in the nonwoven material is 5% to 100%, preferably 20% or more, particularly preferably 50% or more. 
     
     
         5 . A hydroentangled nonwoven fabric, comprising flat fibers in the form of collapsed hollow viscose fibers with a ratio of width B to thickness D of B:D≥10:1. 
     
     
         6 . A nonwoven fabric according to  claim 5 , characterized in that the flat fibers have a ratio B:D ranging from 10:1 to 30:1, preferably of 20:1. 
     
     
         7 . A nonwoven fabric according to  claim 5  or  6 , characterized in that the flat fibers have a titer ranging from 0.9 to 5 dtex, preferably from 1.3 to 1.9 dtex. 
     
     
         8 . A nonwoven fabric according to any of  claims 5  to  7 , characterized in that the amount of flat fibers in the nonwoven fabric is 5% to 100%, preferably 20% or more, particularly preferably 50% or more.