Copper ammonia fiber and preparation process thereof

Abstract

The preparation process comprises the following steps: firstly, grinding a flame retardant and an antibacterial agent, and mixing with NMMO (N-methylmorpholine-N-oxide) to prepare a functional additive; dissolving cotton linter fibers in a copper ammonia solution, stirring and dissolving, then adding the prepared functional additive, fully stirring, and obtaining a copper ammonia fiber spinning solution after the functional additive is completely dispersed; adding a sodium hydroxide solution into the spinning stock solution, stirring, standing, solidifying, neutralizing with dilute sulphuric acid, and then adding a coagulant ethanol for solidifying to obtain copper ammonia fibers; the copper ammonia fiber prepared by adopting the preparation method disclosed by the invention has good flame retardant property and antibacterial property, and the functional additive has good adhesiveness, good serviceability and durability and good acid and alkali resistance.

Description

technical field [0001] The invention relates to the field of fiber preparation, in particular to a copper ammonia fiber and a preparation process thereof. Background technique [0002] The single fiber of cupro ammonia fiber is thinner than that of viscose fiber. The product has excellent wearability, good air permeability and moisture absorption, and will not generate static electricity, which is very suitable for the needs of contemporary consumers; cupro ammonia fiber is a kind of Regenerated cellulose fibers, using natural cellulose such as cotton linters as raw materials, are dissolved in cupro ammonia solution to prepare spinning stock solution, decomposed in the coagulation bath to regenerate cellulose and then processed to obtain cupro ammonia fiber, but cupro ammonia fiber has poor antibacterial effect , poor flame retardancy, some studies have carried out the modification of cupro ammonia fiber at present, such as patent 201610912876.2 a preparation method of Chine...

AI Technical Summary

Problems solved by technology

[0002] The single fiber of cupro ammonia fiber is thinner than that of viscose fiber. The product has excellent wearability, good air permeability and moisture absorption, and will not generate static electricity, which is very suitable for the needs of contemporary consumers; cupro ammonia fiber is a kind of Regenerated cellulose fibers, using natural cellulose such as cotton linters as raw materials, are dissolved in cupro ammonia solution to prepare spinning stock solution, decomposed in the coagulation bath to regenerate cellulose and then processed to obtain cupro ammonia fiber, but cupro ammonia fiber has poor antibacterial effect , poor flame retardancy, some studies have carried out the modification of cupro ammonia fiber at present, such as patent 201610912876.2 a preparation method of Chinese herbal medicine aromatic cupro ammonia fiber, the prepared Chinese herbal medicine water emulsion, brandy microcapsule fragrance, chitosan solution and The cupro ammonia fiber spinning stock solution is ground and mixed according to a certain mass ratio, and is directly spun and formed in a coagulation bath, but the smell of Chinese herbal medicine limits its wide applicability, and its antibacterial performance is relatively poor; patent CN201710250753. The preparation method of strong and wear-resistant cupro ammonia fiber, the spinning raw material is single, although the fabric has wear resistance, the attachment of crosslinking agent will reduce the original comfort of cupro ammonia fiber, and it lacks antibacterial and flame retardancy