A kind of high-performance low-quantity dictionary paper and preparation method thereof

Abstract

The invention discloses a high-performance low-quantity dictionary paper and a preparation method thereof. The paper comprises a plant fiber layer and coatings arranged on both sides of the plant fiber layer. The basis weight of the paper is 22-30 g / m 2 , the pulp for preparing the plant fiber layer includes 45-65% bleached uncolored softwood pulp and 35%-55% bleached hardwood pulp, and the coating for preparing the coating is recorded in parts by weight, and the raw materials include: 200-300 parts modified filler, 40~60 parts retention aid, 1~2 parts water retention agent, 1~3 parts lubricant, 0.05~0.1 part defoamer, 5~10 parts sodium hydroxide and 500~1000 parts water. In the present invention, modified fillers are used in the coatings on both sides of the plant fiber layer, and the substances introduced on the surface of the modified fillers can react with the fibers so that the fillers and the fiber layers are firmly connected, and the retention rate of the fillers is improved; The color-forming substances in the ink prevent page break-through and deinking.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a high-performance low-quantity dictionary paper and a preparation method thereof. Background technique [0002] Dictionary paper is a kind of high-grade printing paper, which is characterized by high opacity, smoothness and durability. The paper surface needs to be white and delicate, strong and durable. Generally, the opacity, whiteness and ink absorption of dictionary paper are improved by adding fillers such as calcium carbonate during the preparation of dictionary paper. Announcement No. CN102839559B, the dictionary paper is prepared by double-sided coating method. The coating formula includes: 80 parts of heavy ultrafine calcium carbonate, 20 parts of rutile titanium dioxide, 10 to 15 parts of styrene-butadiene latex, and 15 to 20 parts of quaternary amine type Cationic starch, 0.3-0.5 part of water retention agent, 0.01-0.03 part of dispersant, 0.5-0.7 part of lubrica...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome that in the existing dictionary paper preparation process, since there is no binding force between the filler and the fiber, it is easy to separate from the flocs and lose under the action of an external force, and the retention rate of the filler is not high, which affects the performance of the paper; and The particle size of the filler is small and easy to agglomerate, which affects its light scattering performance and the uniformity of the paper. A high-performance low-weight dictionary paper and its preparation method are provided. The surface of the filler is modified to improve the dispersion of the filler. Through the reaction between the modified filler and the fiber, the filler and the fiber are chemically connected to improve the retention rate of the filler, thereby improving the performance of the paper