Functional yarn and preparation method and device thereof

Abstract

The invention discloses a functional yarn and a preparation method and device thereof. The preparation method specifically comprises the steps that core yarn with superfine steel fiber as a core layer and nylon as a coating layer is subjected to electromagnetic heating, functional particles are sprayed to the surface of the heated core yarn, and then a nanofiber coating layer is formed on the surfaces of the functional particles through spray spinning; the superfine steel fibers are introduced into the functional yarn, the strength, the shielding performance, the anti-static performance and other performance of the yarn are improved, meanwhile, the core yarn is subjected to electromagnetic heating through the heat conductivity and the electric conductivity of the superfine steel fibers, sprayed functional particles can be better embedded into nylon which becomes soft after being heated, and the anti-static performance of the yarn is improved. The nanofiber formed by surface jet spinning wraps the functional particles on the inner layer and spirally wraps the yarn together with the functional particles, and the nanofiber is slightly dissolved and adheres to the core yarn wrapped by the functional particles under the action of waste heat, so that the adhesion of the functional layer in the yarn is further improved. According to the method, different functional particles can be introduced according to functional requirements, and the prepared functional yarn shows high mechanical strength and excellent durability.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a functional yarn and a preparation method and device thereof. Background technique [0002] At present, the functionalization of textile fabrics is becoming more and more comprehensive, and it is difficult for a single functional fabric to meet the actual needs. At the same time, the existing methods of functionalizing fibers or fabrics are basically the methods of dipping and coating. The methods of dipping and coating are respectively It is to disperse the functional additives in the solvent to make the corresponding dipping solution or coating slurry. However, the above method is used to functionalize the fibers or fabrics. There are problems such as weak functionality or poor comfort of the fabric. 2. The adhesion is not strong, and it is easy to fall off during the preparation or use process, the continuity is destroyed, and the functionality is lost. [0003] In order to...

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Problems solved by technology

[0002]At present, the functionalization of textile fabrics is becoming more and more comprehensive, and it is difficult for single functional fabrics to meet the actual needs. The method of impregnation and coating is to disperse the functional additives in the solvent to make the corresponding impregnation liquid or coating slurry, but the fibers or fabrics are functionalized by the above methods. The following shortcomings: 1. The thickness of coating or impregnation is not easy to control, and it is easy to have problems such as weak functionality or poor fabric comfort. 2. The adhesion is not strong, it is easy to fall off during preparation or use, and the continuity is destroyed. loss of functionality

[0003] In order to enhance the adhesion between functional particles and fibers, researchers at home and abroad have done a lot of research, mainly in the following three ways: (1) direct functional particles with spinning Silk liquid blending and electrospinning to prepare functional fibers. In order to ensure that the functional particles can be uniformly dispersed in the spinning solution, this method has high requirements on the particle size of the functional particles, generally below the micron level, and the functional particles in the spinning solution The concentration of the particles should not be too high to avoid affecting the strength of the fiber; (2) use an adhesive to adhere the functional particles or related functional layers to the surface of the fiber. Compared with the method (1), the effect of functional particles on the mechanical properties of the fiber However, the existence of the adhesive will affect the activity of the functional particles, and some non-volatile organic reagents contained in the adhesive will cause a certain degree of harm to the environment and the human body; (3) through the specific functional particles Heating to make it adhere to the surface of the fiber in a slightly soluble state to obtain functional fibers. This method has high requirements on the melting point of the functional particles and the tolerance temperature of the fibers. Functional particles with too high melting point are difficult to withstand within the temperature range of the fibers. achieve this effect, so this method is used in a small

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