The invention provides
coating newsprint and a making method thereof. The
newsprint has the following specifications: the fixed weight is 45-49g / m<2>, whiteness is 59-63%, transverse tear index is larger than 5.5m N.m<2> / g, opaqueness is larger than 95%,
surface strength is larger than 1.0m / s, average smoothness of the front side and the back side is larger than 60S, the smoothness difference of the front side and the back side is less than 20%, and the longitudinal breakage length is larger than 1500m. The making method of the
coating newsprint comprises the following steps of: preparing 100% regenerated
fiber deinked pulp completely made from No.8
waste paper and adding auxiliary materials including retention aid, dyes and cationic
starch to obtain material pulp; distributing pulp by using a headbox, forming at a neat part, carrying out composite squeezing in a four-roller three-pressing region, primary
drying, surface mineral
pigment coating and finishing, post-
drying, reeling by using reeling
machine and external re-reeling. The making method is simple, the coat of coating newsprint per
ton is reduced by 250-280 yuan; the surface whiteness of the product is greatly improved, the surface of the product is smooth and fine, the ink
absorption rate of the product is moderate; the printability is improved; ink consumption during printing can be reduced 10-15wt%; the printed pictures have bright color and clear wire marks; and the made coating newsprint can meet printing requirements of common newspapers and periodicals and high-quality
colored newspapers and periodicals.