At present

degree of polymerization of commercial dissolving wood pulp cellulose fibers is about 500~1800

and their molecular weight has polydispersity. Therefore

dissolving pulp with different characteristics was selected as cellulose fiber raw material

and effect of addition of hydrogen bond acceptor in NaOH aqueous solution on dissolving heterogeneous cellulose material was discussed in this paper

combined with fiber quality analysis. The results showed that dissolving capacity of NaOH/additives aqueous solution to dissolving pulp cellulose fibers is closely related to coarseness of pulp cellulose fibres in aqueous solution

rigid degree of fiber and types of additives

different from dissolving pure cellulose. And dissolution of longer cellulose fibers was improved in solvents with mixed additives

a small amount of sodium sulfamate

and sodium cyclamate.