METHOD OF PRODUCTION OF MULTILAYERED MINERAL-COTTON ITEMS Russian patent published in 2009 - IPC B28B1/52 E04B1/74 

FIELD: textiles.

SUBSTANCE: present invention relates to production of mineral-cotton items, mainly multilayered items. The method involves making a mineral-cotton mat, moving it, slitting the mat into strips across the width, changing the shape and dimensions of the cross section of the strips, stacking the strips, moving them together and hardening. Before stacking ((n-1), where n is the number of strips, cut from the mineral-cotton mat) the strips are twice turned about their longitudinal axes by 180 degrees. After each turn, the direction of movement of the said strips in the plane of the mat is changed by an angle 180>α>0 degrees. Angles α, which characterise change in direction of movement of each strip, are equal to each other.

EFFECT: simplification of the process of making multilayered mineral-cotton items.

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