METHOD AND APPARATUS FOR EMBOSSING SHEET OR ROLL MATERIALS AND PRODUCT OBTAINED BY SAID METHOD Russian patent published in 2021 - IPC B31F1/07 B44C1/24 

FIELD: printing.

SUBSTANCE: invention relates to embossing of sheet or roll materials. Part of the protrusions of the driving roller and the protrusions of the driven roller interacting through the embossed material, or the protrusions of one of said rollers and the recesses of the other roller are made with square bases and identical in shape and size for both the driving and the driven rollers. The protrusions on one of the rollers are oriented relative to the protrusions or recesses of the other roller so that the angle between the corresponding longitudinal planes thereof equals 90°. The protrusions or the protrusions and recesses are made with four side faces coupled with the upper fifth flat face in the form of a rectangle with the length thereof greater than the width, or said protrusions or protrusions and recesses are made with four side faces converging at the upper edge of the protrusion.

EFFECT: technical result consists in providing a relief surface consistently retaining the shape imparted thereof and in facilitating the process of manufacturing and/or packaging by thinning the material at the bending point of the packaging.

27 cl, 7 dwg, 4 ex