Environment-friendly and pollution-free production process of regenerated polyester staple fibers

Abstract

The invention relates to an environment-friendly and pollution-free production process of regenerated polyester staple fibers. The process comprises the following steps of S1, preparing a raw material mixed solution: heating raw materials to obtain a raw material melt in a molten state, adding multi-walled carbon nanotubes into the raw material melt in the molten state, and performing uniform stirring to obtain the raw material mixed solution; S2, filtering the raw material mixed solution, and removing impurities; S3, carrying out primary drying on the filtered and impurity-removed raw material solution to remove moisture; S4, spinning the raw material solution subjected to primary drying; and S5, performing cleaning, secondary drying and winding on formed spun yarns to obtain the multi-walled carbon nanotube regenerated polyester staple fibers. According to the environment-friendly and pollution-free production process of the regenerated polyester staple fibers, the multi-walled carbon nanotube regenerated polyester staple fibers with good self-supporting performance and high toughness can be provided, the process is simple, the operation is convenient, the application range is wide, the pollution is avoided in the preparation process, and good environmental benefits and economic benefits are achieved.

Description

technical field

[0001] The invention relates to the technical field of fiber spinning, in particular to an environmentally friendly and pollution-free production process for recycled polyester staple fibers. Background technique

[0002] Regenerated polyester staple fiber refers to the use of waste polyester bottle flakes, spinning waste, foam material, and pulp as raw materials. The waste bottle flakes are crushed and cleaned, and the mixture of various materials is dried, melt-extruded, and spun, etc. process to form polyester staple fibers of different lengths. Its length is generally 30 to 150mm, and has various specifications, which belongs to the full utilization of renewable resources. It has a broad market prospect because of its low cost and good performance.

[0003] Specifically, there are many different varieties of recycled polyester staple fiber, such as ordinary fiber, hollow fiber, triangular yarn, flame-retardant fiber, etc., which can be used in furniture...