Antiflaming viscose fiber and preparation method thereof

Abstract

The invention relates to an antiflaming viscose fiber and a preparation method thereof, and belongs to the technical field of viscose fiber production. The antiflaming viscose fiber comprises an antiflaming solution and a spinning viscose solution, wherein in the antiflaming solution, a concentration of sodium hydroxide is 40-70g / L; a concentration of a linear silicon flame retardant is 180-225g / L; a concentration of an auxiliary flame retardant is 80-120g / L; a concentration of a silane coupling agent is 70-110g / L; and a concentration of a thickening agent is 15-25g / L. According to the antiflaming viscose fiber and the preparation method, a situation that an alkali concentration in an antiflaming viscose spinning solution is reduced finally is avoided to the greatest extent, so that the spinnability of the antiflaming viscose spinning solution is improved, and the quality of the antiflaming viscose fiber is further improved. In addition, the thickening agent is added, and a viscidity change of viscose before spinning is reduced, so that the spinnability of the antiflaming viscose glue spinning solution is also improved, and the quality of the antiflaming viscose fiber is further improved.

Description

technical field [0001] The invention relates to a viscose fiber and a preparation method thereof. More specifically, the invention relates to a flame-retardant viscose fiber and a preparation method thereof, belonging to the technical field of viscose fiber production. Background technique [0002] At present, there are roughly three methods for the production of flame-retardant viscose fibers: [0003] 1. Post-treatment flame retardant modification, generally after the fiber is made or during the production process, the primary fiber is treated with a nitrogen-containing organic phosphate compound, or antimony trioxide and a halogen-containing flame retardant are mixed with latex State coated on the surface of the fiber, this method has a good flame retardant effect, but poor washability, and the flame retardant effect cannot last; [0004] 2. Graft copolymerization flame retardant modification, graft copolymerization of viscose fiber and vinyl monomer containing phosphoru...

AI Technical Summary

Problems solved by technology

[0015] The present invention aims to solve the unreasonable selection of raw materials for flame-retardant viscose fibers in the prior art, which affects the alkali concentration and viscosity of the spinning viscose solution, resulting in reduced spinnability of the flame-retardant spinning viscose solution formed by mixing. The problem is to provide a kind of flame-retardant viscose fiber, the selection of raw materials for its production is more reasonable, it will not affect the alkali concentration and viscosity of the spinning viscose solution, improve the spinnability of the flame-retardant spinning viscose solution, and then improve the final resistance The quality of burning viscose fiber products