Method for on-line modifying chemical fiber surface property

Abstract

The method of on-line surface modifying chemical fiber is to add superfine powder of selected material into wet spinning coagulating liquid and the added amount of the superfine powder in the coagulating liquid is 50-200 g / L. During coagulation of the spinning liquid in the coagulating liquid, the fiber has the superfine powder adsorbed on the surface to form surface modified fiber. The chemical fiber modifying production process uses superfine powder with wide source and has no altering in traditional wet spinning path, and the produced surface modified chemical fiber has surface performance and characteristic related with the selected powder material.

Description

technical field [0001] The invention relates to a method for modifying the surface properties of chemical fibers on-line. Background technique [0002] Chemical fiber occupies a very important position in people's daily life, but with the development of social economy, people put forward new requirements for the characteristics of clothing fabrics. Some disadvantages of chemical fibers, such as poor moisture absorption and air permeability, poor antistatic performance, poor dyeing performance, etc., greatly limit its application in clothing. Research on chemical fiber modification technology has been paid more and more attention by researchers from all over the world. [0003] At present, the research on chemical fiber modification technology mainly focuses on the following aspects: [0004] (1) Change the cross-sectional shape of the fiber to modify the fiber [0005] Through the special design of the spinning holes, fibers with special-shaped cross-sections are spun. S...

AI Technical Summary

Problems solved by technology

[0013] In the current chemical fiber modification method, the modification of the fiber by changing the cross-sectional shape of the fiber, and the modification of the fiber by compounding multiple components are mainly used in the fiber made by melt spinning. Due to its own process characteristics, wet spinning It is difficult to apply the above two modification methods

The fiber is modified by blending or copolymerizing different components so that the whole fiber has some excellent performance characteristics at the same time, which may not only damage the physical and mechanical properties of the chemical fiber, but also cause waste of modified materials.

At present, methods of surface graft copolymerization, low-temperature plasma irradiation or alkali reduction treatment are mainly used for fiber surface modification. These methods are all processed after the fiber is made into a finished product. At the same time, the process control requirements are high and the additional cost is high.

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