Abstract: A process for the manufacture of non-woven unpatterned cloth in which a fibrous base cloth made from elementary fibers is conveyed onto a rotating perforated drum having a plurality of micro-holes. The micro holes are distributed in a randomized manner over the drum surface allowing a plurality of pressurized water jets to effectively act upon the base cloth taken up by the drum with increased pressure and without the effects of shadow marking on the processed cloth.
Abstract: Apparatus for the production of a nonwoven material wherein a web of material is drawn over a series of parallelly aligned porous rolls. The web is treated with a jet of pressurized water as it moves in contact over each roll. The web is compressed between the first roll in the series and is wetted by a curtain of water as it is being compressed to increase the density of the web material prior to its being treated with the pressurized jets of water.
Abstract: A web of non woven textile fabric is fed on a porous belt into the nip between the belt and a rotating porous drum to compress the web within the nip. A curtain of water is passed through the web while it is in the nip into the drum and a vacuum is drawn on the drum to remove the water. The web, after passing the nip remains upon the drum and is subject to one or more high pressure jets of water to entangle the web fibers.