NON-WOVEN COMPOSITE MATERIAL CONTAINING PERFORATED FLEXIBLE FILM Russian patent published in 2012 - IPC D04H13/00 D04H1/54 A61F13/15 

FIELD: textiles, paper.

SUBSTANCE: flexible nonwoven composite material comprises a flexible film layered on one or more non-woven material. Composite material is obtained by passing the film and a non-woven material through the clamp formed of at least one patterned roll. In the clamp there is a simultaneous fusion of the film with non-woven sheet, and formation of holes in the film essentially without softening of the polymer of nonwoven material sheet. At least one of the holes has a length of about 200 to about 5000 microns, and the film is stretched with relative elongation of about 1.5 or more in the machine direction in the clamp. Absorbing product contains the outer coating, an undercloth adjacent to the body which is connected to the outer coating, and the absorbing core. The latter is located between the outer coating and the undercloth adjacent to the body. The absorbing product contains a non-woven composite material mentioned above.

EFFECT: improvement of preservation of physical properties of nonwoven materials, namely fluid permeability, softness, voluminosity and pleasurableness by feel.

27 cl, 17 dwg, 2 tbl, 5 ex