FIELD: textile, paper.
SUBSTANCE: compresses at least one sheet with the texturized layer, containing the picked up pointed structures, with the softer smooth sheet in order to embed the structures into it. The pointed structures are picked up above the grooves, made in the sheet material surface by the knife with plurality of notches. The pointed structures may pierce the thinner layer through, and the protruding peaks can be bent or flattened to prevent its free extraction. Between two such texturized sheets, the softer layer can be placed, which is punched through and thus meshed to each other.
EFFECT: creation of lighter and more rigid structural materials for the production of better quality products.
11 cl, 13 dwg
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