Production method of PLA colored silk fiber

Abstract

The invention relates to a production method of a PLA colored silk fiber. The production method comprises the following steps: providing a polylactic acid raw material and a polylactic acid color master batch, drying the provided polylactic acid raw material and the polylactic acid color master batch, proportionally mixing the dried polylactic acid raw material and the polylactic acid color masterbatch to form a mixed raw material, conveying the mixed raw material to a spinning assembly through a screw extruder, carrying out melting compression on the polylactic acid raw material through thescrew extruder to form a mixed raw material in a molten state, and spraying color silk tows from the mixed raw material in the molten state through the spinning assembly; making the color silk tows sequentially pass through a lateral air blowing device, an oil feeding device and a channel; drawing the tows drawn from the channel through a drawing assembly; after the drawn tows enter a main interlacer and network points, feeding the drawn tow into a winding machine to be wound into a silk cake. The production method is beneficial to the effective popularization of the PLA colored silk fiber.

Description

technical field [0001] The invention belongs to the technical field of textile chemical fiber production, and in particular relates to a production method of PLA polylactic acid colored silk fiber. Background technique [0002] Polylactic acid (English full name: polylactic acid, referred to as PLA) fiber, the raw material polylactic acid used comes from plants, non-fossil fuels, the fiber is naturally degradable, and has a silk-like luster and feel, and has a certain water absorption. Very good fiber material with great development potential. [0003] In the prior art, the production method of colored silk fiber is mainly made by fiber dyeing. This method is time-consuming, high in loss, and pollutes the environment. Therefore, it is on the agenda to use polylactic acid to manufacture imitation silk fiber. [0004] At present, there are not many technical methods for producing polylactic acid colored silk fibers in China, and the technical capabilities are still very limit...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the production method of colored silk fiber is mainly made by fiber dyeing. This method is time-consuming, high in loss, and pollutes the environment. Therefore, the use of polylactic acid to manufacture imitation silk fiber is on the agenda.

[0004] At present, there are not many technical methods for producing polylactic acid colored silk fibers in China, and the technical capabilities are still very limited. The quality of the produced polylactic acid colored silk fibers is poor, which hinders the effective promotion of products.

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