Multi-ply dispersible nonwoven material

Abstract

The invention relates to a nonwoven material having sufficient strength to be used in a pre-moistened state but also having dispersibility properties which allow the product to be flushed. The material comprises at least two nonwoven webs, at least one of which is hydroentangled. Each of the individual webs has a basis weight of 20-100 gsm. The nonwoven webs are joined together by thermal or mechanical embossing, or a combination of these.

1 . A nonwoven fabric material comprising at least two nonwoven web layers, of which layers at least one is hydroentangled, where each individual nonwoven web layer has a basis weight of 20-100 gsm and each individual nonwoven web layer has a composition of 50%-95% wood pulp and 5%-50% short cut man-made fibers and/or natural fiber; and where the at least two nonwoven web layers have been joined together by thermal embossing, mechanical embossing or a combination of these. 
     
     
         2 . The nonwoven fabric material of  claim 1 , wherein the shortcut man-made fibers are selected from the group consisting of regenerated cellulose, lyocell, viscose rayon, polylactic acid and polyvinyl alcohol. 
     
     
         3 . The nonwoven fabric material of  claim 1 , wherein the natural fibers are selected from the group consisting of cotton, hemp, flax, linen, bamboo, sisal, jute and kapok. 
     
     
         4 . The nonwoven fabric material of  claim 1 , wherein the shortcut man-made fibers and/or natural fiber have a length in the range 5 mm to 15 mm. 
     
     
         5 . The nonwoven fabric material of  claim 1 , wherein the bonding area in the embossing is in the range 5% to 33% 
     
     
         6 . The nonwoven fabric material of  claim 1 , wherein the bonding area in the embossing is greater than 5%. 
     
     
         7 . The nonwoven fabric material of  claim 1 , further comprising a wetting liquid. 
     
     
         8 . The nonwoven fabric material of  claim 6 , comprising a wetting liquid in an amount not exceeding 2.5 times the weight of the dry nonwoven material per unit area. 
     
     
         9 . The nonwoven fabric material of  claim 1 , wherein the wet strength of the fabric material is greater than 250 g/50 mm.