A kind of mint composite cellulose fiber and preparation method thereof

Abstract

The present invention provides peppermint composite cellulose fibers, which contain 1-12 wt% of a peppermint extract component and 0.5-3 wt% of peppermint odor essential oil slow-release microcapsules, wherein the dry breaking strength of the fibers is 1.0-3.0 cN / dtex, the wet breaking strength of the fibers is 0.8-1.6 cN / dtex, the dry elongation at break is 16-24%, the residual sulfur content is less than or equal to 18 mg / 100 g, the antibacterial activity logarithm value is more than 2.0, and the bactericidal activity logarithm value is more than 0. The peppermint composite cellulose fiber preparation method comprises: peppermint extract adding liquid preparation, degenerated viscose glue preparing, peppermint blending viscose glue preparing, spinning and post-treating, and filament drafting and post-treating so as to obtain the peppermint composite cellulose fibers. The peppermint composite cellulose fibers of the present invention have characteristics of good wearability, textile processability, antibacterial function, bacterial inhibition function, lasting and fresh peppermint aroma, lasting odor, good textile processing performance, and significant antibacterial function.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to the preparation of a modified cellulose, in particular to a mint composite cellulose fiber and a preparation method thereof. Background technique [0002] As we all know, the existing conventional viscose fiber is regenerated cellulose fiber, and its products have good moisture absorption and air permeability, and are comfortable to wear, but they do not have the antibacterial function of plant sources and plant fragrance. With the improvement of people's living standards and the change of life concepts, people pay more and more attention to the health care function of textiles. It is hoped that the existing viscose textiles can be improved in terms of antibacterial performance and aroma. [0003] In the existing antibacterial fiber products, the antibacterial agents used are basically divided into three categories, namely natural antibacterial agents, organic antibacterial agen...

AI Technical Summary

Problems solved by technology

Due to different production varieties, the composition can also be changed. The minimum cellulose content in viscose is 5% and the maximum can reach 10% (see "Viscose Fiber Technology" second edition page 144), due to the use of conventional wet spinning and spinning Process molding, after the mint extract solution is mixed with the viscose collagen solution, it will go through degassing, aging, filtering and other processes. Decomposition and loss under alkaline conditions, in order to ensure the antibacterial effect, the above-mentioned patent uses a high dosage to make up for the loss: the dosage is 1%-10% of the mass of viscose spinning stock solution, viscose fiber stock solution, its fiber The mass fraction is 5%-15%. After conversion, the added amount of armor fiber is huge, resulting in a huge waste of natural resources. Although the process is feasible, it is difficult to achieve mass production

In addition, the production method carried out pickling in the post-treatment process, which caused the secondary loss of mint active ingredients in the fiber, but did not perform desulfurization treatment, resulting in a high residual sulfur content in the finished fiber.

[0009] The Chinese patent application number 200910183278.6 discloses a production process of mint fiber; the Chinese patent application number 200910183279.0 discloses a production process of bamboo charcoal mint fiber, all of which add mint and viscose after the yellowing of alkali cellulose Liquid blending, fiber manufacturing through a series of processes such as dissolution, ripening, and defoaming. There is also the problem that mint substances are added too early, and the strong alkaline environment destroys the effective substances of mint, resulting in the loss of effective substances in the finished fiber.

[0010] Based on the production technology of mint viscose fiber disclosed at home and abroad, no matter whether mint straw is used to make pulp or mint material is added to viscose to produce mint viscose fiber, there are basically strong acids, strong alkalis and high temperatures. The problem caused the decomposition and loss of effective substances of mint, which not only affected the quality of mint fiber, lost the fragrance of mint, but also caused a great waste of resources