Main Properties and Quality Control Technologies of Dissolving Pulp for Lyocell Fiber Production
Lyocell is a type of eco-friendly high-performance regenerated cellulose fiber.Its manufacturing technology differs greatly from vis-cose fiber in principle,process and equipment.The production of Lyocell fiber requires better quality dissolving pulp than that of viscose fi-ber.The manufacturing process of Lyocell fiber was introduced in this paper firstly.The influence of the chemical compositions of dissolving pulp for Lyocell fiber,macromolecular properties of cellulose,crystalline structure on the production of Lyocell fiber,especially on the disso-lution of the dissolving pulp in 4-Methylmorpholine N-oxide Hydrate(NMMO)solvent,were discussed emphasizedly.The main specifica-tions and quality control technology of the dissolving pulp for Lyocell fiber manufacturing were proposed to provide guidance for the research and production of dissolving pulp for Lyocell fiber.
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