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目前，二次纤维在造纸所用原料中所占的比例日益增大。由于废纸种类及来源复杂，纸中杂质过多且多次回用，加之制浆过程中净化筛选流程过于简单，采用双盘磨低浓打浆对二次纤维的剧烈切断等，严重影响了二次纤维的使用范围及使用品质。针对上述问题以及废纸浆纤维短小，纤维本
At present, the secondary fiber in papermaking raw materials as a proportion of increasing. Due to the complex types and sources of waste paper, excessive impurities in the paper and multiple reuse, combined with the simplification of the purifying and screening process in the pulping process, the use of double-disc pulping and low concentration beating on severely severed secondary fibers severely affected the secondary The use of fiber and the use of quality. In view of the above problems and waste paper pulp fiber is short, the fiber