PAPER AND CARDBOARD MANUFACTURE METHOD

摘要

FIELD: pulp-and-paper industry, in particular, manufacture of paper and cardboard. ^ SUBSTANCE: method involves preparing aqueous cellulose pulp; adding holding system into cellulose pulp system; draining pulp through cloth for forming of paper web; drying resultant paper web. Holding system comprises swelling clay having whiteness of at least 70. ^ EFFECT: increased whiteness of paper and improved filler retention capability. ^ 16 cl, 1 tbl, 20 ex