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Mosquito-repellent regenerated fiber and preparation method thereof

A regenerated fiber and mosquito repellent technology, applied in the direction of fiber chemical characteristics, single-component cellulose rayon, rayon manufacturing, etc., can solve the problem of low persistence of mosquito repellent effect, affecting mosquito repellent effect, and low content of mosquito repellent materials And other issues

Inactive Publication Date: 2020-08-07
青岛尼希米生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are mainly two methods for the preparation of plant-based mosquito repellent textiles at present. One is to apply the mosquito repellent material to the surface of the textile by means of post-finishing. The mosquito repellent material is rubbed off, and the persistence of the mosquito repellent effect is low; the other is to directly mix the plant extract with the fiber spinning solution, and obtain the mosquito repellent fiber by blending and spinning, but in the fiber preparation process, the mosquito repellent The material is easy to lose, resulting in a very low content of mosquito repellent material in the fiber, which affects the mosquito repellent effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The invention provides a method for preparing regenerated fibers for repelling mosquitoes, comprising the following steps:

[0021] Mix the mosquito repellent material, non-ionic surfactant and water to obtain an emulsion;

[0022] Mixing the emulsion with the chitosan solution to obtain a microcapsule suspension;

[0023] The microcapsule suspension and the cellulose spinning solution are mixed for wet spinning to obtain regenerated fibers for repelling mosquitoes.

[0024] In the present invention, unless otherwise specified, the required preparation materials are commercially available products well known to those skilled in the art.

[0025] The invention mixes the mosquito repellent material, the non-ionic surface active agent and water to obtain the emulsion. In the present invention, the mosquito repellent material preferably includes cinnamon or artemisinin.

[0026] In the present invention, the nonionic surfactant preferably includes Span-20 or Tween-80; th...

Embodiment 1

[0035] Mix cinnamon essential oil 15g, Span-207.5g and 7.5g water and stir to obtain an emulsion (the mass content of cinnamon is 50%);

[0036] Chitosan 30g is dissolved in the acetic acid solution that mass fraction is 1%, then stirs 10min at 25 ℃ on the magnetic stirrer, obtains chitosan solution, and its mass fraction is 3%, and described emulsion is 2 drops / s The speed is added dropwise in the described chitosan solution, stirs 20 minutes, obtains microcapsule suspension;

[0037] After diluting the microcapsule suspension, add it into 5150mL cellulose spinning solution (the mass fraction of cellulose is 29%), make the microcapsule mass content in the mixed solution obtained by mixing be 20%, and stir the obtained mixed material , after fully dissolving, after aging and filtering in turn, wet spinning is carried out to obtain regenerated fibers for repelling mosquitoes.

[0038] Performance Testing

[0039] According to conventional methods well known in the art, the re...

Embodiment 2

[0042] Mix cinnamon essential oil 15g, Span-207.5g and 7.5g water and stir to obtain an emulsion (the mass content of cinnamon is 50%);

[0043] Chitosan 30g is dissolved in the acetic acid solution that massfraction is 1%, then stirs 10min at 25 ℃ on the magnetic stirrer, obtains chitosan solution (massfraction is 3%), and described emulsion is with 2 drops / s Speed ​​is added dropwise in described chitosan solution, is stirred for 20 minutes, obtains microcapsule suspension;

[0044] After diluting the microcapsule suspension, add it into 4120mL cellulose spinning solution (the mass fraction of cellulose is 35%), make the microcapsule mass content in the mixed solution obtained by mixing be 25%, and stir the obtained mixed material , after fully dissolving, after aging and filtering in turn, wet spinning is carried out to obtain regenerated fibers for repelling mosquitoes.

[0045] Performance Testing

[0046] According to the method of Example 1, the mosquito repellent reg...

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Abstract

The invention provides a mosquito-repellent regenerated fiber and a preparation method thereof, and belongs to the technical field of mosquito-repellent textiles. According to the mosquito-repellent regenerated fiber and the preparation method thereof, mosquito-repellent material and chitosan are prepared into microcapsules, wherein the mosquito-repellent material is taken as a core and the chitosan is taken as a shell in the microcapsules. The microcapsules are blended with a cellulose spinning solution and then spun through a wet spinning process to prepare the mosquito-repellent regeneratedfiber. The mosquito-repelling regenerated fiber prepared through the method disclosed by the invention not only has a mosquito-repelling effect, but also has a certain antibacterial property due to the existence of the chitosan, and meanwhile, and the mosquito-repelling material and the chitosan are mixed in the fiber in a microcapsule mode, thereby having a certain slow release property, and prolonging the mosquito-repelling time. Mosquito-repellent textiles prepared from the regenerated fiber have high mosquito-repellent substance content and long mosquito-repellent effect.

Description

technical field [0001] The invention relates to the technical field of mosquito repelling textiles, in particular to a regenerated fiber for repelling mosquitoes and a preparation method thereof. Background technique [0002] At present, using anti-mosquito finishing agents to process textiles that often come into contact with the human body, or adding mosquito-repellent materials to fibers to make them have a more durable anti-mosquito effect, is a relatively common preparation method for mosquito-repellent textiles. There are two main types of mosquito repellent materials currently used. One is artificially synthesized repellents based on compounds such as organic esters, aromatic alcohols, unsaturated aldehydes, ketones, amines, and amides. There is a certain harm to the human body; the other is to add natural materials extracted from plants such as wormwood and camellia to textiles to prepare mosquito repellent textiles. Plant mosquito repellent materials have no toxic s...

Claims

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Application Information

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IPC IPC(8): D01F1/10D01F2/00
CPCD01F1/10D01F2/00
Inventor 赵健
Owner 青岛尼希米生物科技有限公司
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