METHOD FOR PRODUCING CARDBOARD-BASE AND CARDBOARD-BASE FOR LAMINATE MATERIAL Russian patent published in 2017 - IPC D21H27/30 B32B29/00 D21C5/02 D21F11/04 

FIELD: textile, paper.

SUBSTANCE: method comprises the stages of: a) obtaining the recycled fibrous material mixture, b) obtaining, at least, one fibrous material suspension, which comprises, at least, a portion of the obtained fibrous material mixture, c) preparing, at least, one fibrous material suspension, consisting in that, at least, the ash level of the fibrous material suspension is decreased to the dry fraction ash level of the fibrous material suspension not more than 15 wt % and admixed with, at least, one additive to, at least, one fibrous material suspension, d) producing a layer system of, at least, one fibrous material suspension. Another aspect of the invention relates to the cardboard-base for manufacturing a laminate material.

EFFECT: creating cardboard-base for the laminate material consisting of a recycled fiberrous material mixture having low abrasiveness with respect to the cutting tool, good breathability and improved balance of cost and environmental impact.

57 cl, 3 dwg