METHOD FOR PRODUCING COMPOSITE SHEET Russian patent published in 2017 - IPC B32B3/28 A61F13/49 A61F13/15 D06C23/04 

FIELD: textile, paper.

SUBSTANCE: method for producing a composite nonwoven sheet comprises: a stage of creating protrusions and depressions consisting in feeding the first sheet-shaped element to the engagement section between the first shaft and the second shaft and thus creating protrusions and depressions in the first sheet-shaped element; an intermediate stage of producing a semi-finished composite sheet by applying the second sheet-shaped element to the first sheet-shaped element and attaching the second sheet-shaped element to the portions of the first sheet-shaped element which correspond to the protrusions on the first shaft and thus forming a plurality of the first connected portions; and a coupling stage consisting in the use of the third shaft, the peripheral surface of which has protrusions and depressions, the shape of which is different from the shape of the protrusions and depressions of the first shaft, and forming the second connected portion on the semi-finished composite sheet. The second connected portion is formed in accordance with a model in which one first connected portion is connected to another first connected portion adjacent to it.

EFFECT: creation of composite sheets for absorbent products which have strength and excellent appearance.

18 cl, 10 dwg