THREE-DIMENSIONAL NONWOVEN MATERIALS AND METHODS FOR MANUFACTURING THEREOF Russian patent published in 2024 - IPC D04H1/495 A61F13/512 

FIELD: nonwoven materials.

SUBSTANCE: in one embodiment, the method involves providing an initial web which contains a plurality of fibres and transferring the initial web to a forming surface having a plurality of forming slots. Method may also include directing a plurality of pressurized fluid flows consisting of a bonding fluid, towards initial web on forming surface for movement of at least some of fibres into plurality of forming slots for creation of web subjected to jet bonding. Method may further include removing the fluid-bonded web from the forming surface such that at least some of the fibres, displaced into a plurality of forming slots, a plurality of units are provided. Plurality of nodes may have an anisotropy value greater than 1.0 as determined by a test method based on analysis of the nodes.

EFFECT: disclosed are three-dimensional nonwoven materials and methods of making such materials.

20 cl, 2 tbl, 31 dwg