High-moisture-absorption acrylic fiber containing quinoline copper and preparation method of high-moisture-absorption acrylic fiber

Abstract

The invention relates to a high-moisture-absorption acrylic fiber containing quinoline copper and a preparation method of the high-moisture-absorption acrylic fiber. The high-moisture-absorption acrylic fiber comprises the following raw materials in parts by weight: 45-95 parts of acrylonitrile, 3-50 parts of 8-hydroxyquinoline copper, 1-15 parts of acrylamide and 1-15 parts of acrylic acid. The preparation method comprises the following steps: uniformly stirring the acrylonitrile, the 8-hydroxyquinoline copper, the acrylamide and the acrylic acid in a high-concentration zinc chloride solvent; heating to 40 DEG C; performing graft copolymerization on an oxidation-reduction initiating system for 1 hour, and then standing for 30 hours; performing de-foaming for 12 hours, and then performing wet spinning; putting a spinning solution into a low-concentration zinc chloride solvent; solidifying the spinning solution at the temperature of 0-5 DEG C, performing drawing in hot water at the temperature of 100 DEG C, and performing washing in neutral hot water at the temperature of 90 DEG C; performing drying, sizing, cut-off and packaging to obtain a fiber product. Compared with the prior art, the high-moisture-absorption acrylic fiber has the advantages that the content of copper in the fiber can be more than 5 percent; the moisture regain of the fiber is more than 6 percent; good antibacterial property and good comfort are achieved; 3A can be achieved by only adding 5 percent of acrylic fiber into an antibacterial fabric, namely the antibacterial rate of the fiber washed for 50 times meets the standard.

Description

technical field [0001] The invention relates to a fiber and a preparation method thereof, in particular to a quinoline-copper highly hygroscopic acrylic fiber and a preparation method thereof. Background technique [0002] At present, common heavy metal series (such as silver, copper, zinc, etc.) antibacterial fibers on the market basically adopt the technology of blending inorganic metal ions and melt spinning. That is, inorganic metal ions are used as antibacterial components to be added to melt-spun fibers (polyester, nylon, etc.) by blending. [0003] The advantage of this ordinary heavy metal antibacterial fiber is that it is easy to process, but it also has obvious disadvantages: 1. The metal content is low. Since these metals exist in the fiber in a blended state, too many metal elements cannot be added to the fiber, otherwise The strength of the fiber cannot be guaranteed, and the general content is much less than 1%. 2. The surface is easy to fall off the microsco...

AI Technical Summary

Problems solved by technology

[0003] The advantage of this ordinary heavy metal antibacterial fiber is that it is easy to process, but it also has obvious disadvantages: 1. The metal content is low. Since these metals exist in the fiber in a blended state, too many metal elements cannot be added to the fiber, otherwise The strength of the fiber cannot be guaranteed, and the general content is much less than 1%

3. The antibacterial effect is not good. Most of these fibers are melted fibers, and the melted fibers have the characteristics of water repellency. During the antibacterial process, sweat can only wet the surface of the fiber, that is, the antibacterial effect can only act on the surface of the fiber, and there are more antibacterial components inside the fiber. underutilized

4. The dosage is large due to the above reasons: the metal elements of the antibacterial component cannot be added more (less than 1%), the metal elements on the surface of the fiber are easy to fall off, and the antibacterial effect can only be applied to the surface, etc.

In general, the proportion of these antibacterial fibers added to the fabric needs to reach more than 30% to achieve the antibacterial effect, which limits the performance and cost of these antibacterial fabrics

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