Production process and device of colored polylactic acid filaments

Abstract

The invention discloses a colored polylactic acid filament production process and device, the device comprises a wire drawing mechanism for pushing and drawing a colored polylactic acid solution, and a stirring mechanism fixedly connected to one side of the top end of the wire drawing mechanism and used for preparing the colored polylactic acid solution, and the stirring mechanism comprises a stirring cylinder; an inner barrel is fixedly arranged in the stirring barrel, a plurality of heating pipes are arranged on the outer edge face of the inner barrel in an annular array mode, circular grooves are formed in the centers of the tops of the two sides of the stirring barrel, and color masterbatch premixing mechanisms are fixedly arranged in the circular grooves. According to the production process and device of the colored polylactic acid filaments, polylactic acid can be fully and uniformly colored, the quality of the colored polylactic acid filaments is greatly improved, the rejection rate of colored polylactic acid filament production is reduced, and a colored polylactic acid solution can be subjected to heat preservation during wire drawing; therefore, the situation that a wire drawing opening is blocked due to solidification of the colored polylactic acid solution is avoided, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of fiber production equipment, and in particular relates to a production process and a device for colored polylactic acid filaments. Background technique [0002] Polylactic acid fiber is made of starch-containing agricultural products such as corn, wheat, and sugar beet as raw materials. After fermentation to generate lactic acid, it is made by polycondensation and melt spinning. Polylactic acid fiber is a kind of raw material that can be planted and easy to plant. It is a naturally degradable synthetic fiber in nature. It can be decomposed into carbon dioxide and water by microorganisms in soil or seawater. When burning, it will not emit poisonous gas and cause no pollution. It is a sustainable ecological fiber. [0003] Its fabrics have good handle, drape, UV resistance, low flammability and excellent processing properties, and are suitable for various fashions, casual wear, sporting goods and hygiene pro...

AI Technical Summary

Problems solved by technology

[0004] However, in the production and processing process of the colored polylactic acid filament production device in the prior art, the color masterbatch cannot be evenly dropped into the production device, which is likely to cause uneven coloring of polylactic acid after wire drawing, which seriously reduces the Improve the quality of colored polylactic acid filaments, improve the reject rate of colored polylactic acid filament production;

[0005] And because the colored polylactic acid is heated and drawn, due to the long pipeline, the colored polylactic acid solution will solidify, which will easily lead to the blockage of the drawing port and reduce the quality of the product

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