Process for manufacturing nonwoven fabrics comprising natural fibers hydrophilic, in particular raw cotton, and nonwoven fabrics obtained.

摘要

The manufacturing process of a non woven from unbleached cotton, OR OTHER lignocellulosic NATURAL FIBERS COMPRISING SURFACE LAYER OF MATERIALS THAT MAKE THE FIBER IS BACK Hydrophobic, comprising the steps of: forming a layer FIBER unlinked ON A FABRIC permeable to water, tufting WITH FIBER LAYER by a plurality of water jets LEAVING RAMPS INYECTORES, arranged transversely with respect to the direction of movement of SUPPORT IS DEFINED IN THE ENERGY TOTAL sUPPLIED TO lAYER BY THE SUM OF jETS is at least equal to a minimum threshold corresponding to the value at which this layer becomes hydrophobic. ALSO it TAKES ON THE INVENTION hydrophilic non-woven ligature MADE FROM HYDRAULIC cotton or other fibers NATURAL lignocellulosic such as flax, hemp and chemically untreated material.