Preparation method of high-performance wear-resistant paper

Abstract

The invention relates to a preparation method of high-performance wear-resistant paper, comprising the following steps in sequence: the materials are prepared: powdered corundum, water and a dispersing agent are added in a dispersing barrel for mixing and sieved for spare use; an auxiliary agent is sieved for later use after being metered; soft wood pulp and water are crushed by a hydrapulper and pass through a first pulse storing pool and a double-disc grinder to enter a second pulp storing pool for later use; three types of spared pulp are mixed in a batching pool and mixed pulp is prepared; the mixed pulp passes through a papermaking pulp pool, a high-position box, a slushing pump and a step diffuser; the mixed pulp passes through an inclined net, and the netting concentration is 0.03-0.08%; and then squeezing and drying are carried out. The preparation method has the advantages that the mixed uniformity is improved by adopting the preparation technique of respectively preparing the soft wood pulp, the powdered corundum pulp and the auxiliary agent and then mixing, especially the powdered corundum is pre-dispersed, the pheonomenon that the bad dispersion of the corundum cause defects on the appearance quality brought by the finished wear-resistant paper, and the definition and the transparency are improved. In addition, the retention of the corundum is improved, and the used amount of the corundum is reduced.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a preparation method of high-performance wear-resistant paper. Background technique [0002] Modern papermaking procedures can be divided into main steps such as pulping, modulation, papermaking, and processing. Among them, the preparation process is one of the key points of the papermaking process. The strength, color tone, printing quality of the finished paper, and the length of the paper shelf life are directly related to it; the main work of the papermaking process is to evenly interweave thin paper materials. and dehydration, then drying, calendering, rolling, cutting, sorting, and packaging, so the common process is as follows: [0003] a. Screening of paper materials: Dilute the prepared paper materials to a lower concentration, and use screening equipment to screen out impurities and undissociated fiber bundles again to maintain quality and protect equip...

AI Technical Summary

Problems solved by technology

[0012] However, due to the gradual increase in the vacuum degree control of the wire part, the corundum (Al 2 0 3 ) distribution is irregular to follow, resulting in greatly reduced stability of the paper wear resistance index, transparency is also greatly reduced, often resulting in "white flowers" (small white spots, etc.) phenomenon

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