Polylactic acid and masterbatch injection mixed spinning system

Abstract

The invention provides a polylactic acid and colour master batch injection type blend spinning system, comprising a polylactic acid dry slice conveying pipeline, a polylactic acid screw extruder, a colour master batch stock bin, a colour master batch screw extruder, a colour master batch metering pump and a spinning manifold, wherein a polylactic acid melt distributor, a colour master batch melt extrusion distribution head, a melt metering pump, a spinning component and a spinneret plate are arranged in the spinning manifold. The system is rational in design, novel in structure and high in spinning efficiency; polylactic acid and colour master batch are distributed and mixed uniformly; an original production line can just be improved, so that the production of polylactic acid colour silks in multiple colours by one machine is realized.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber spinning, and in particular relates to an injection mixed spinning system of polylactic acid and color masterbatch. Background technique [0002] Chemical fiber spinning includes spinning melt or solution preparation, fiber forming and winding, and post-treatment processes. The post-processing process includes a series of processes such as stretching of primary fibers, heat setting, and packaging of finished products. [0003] The existing spinning methods include melt spinning and solution spinning. Fiber-forming polymers that generally do not decompose significantly in the molten state are melt-spun, such as polyester fibers, polyamide fibers, and the like. The melt spinning process is simple and the spinning speed is high. The solution spinning method is suitable for the fiber-forming polymer to be decomposed during melting, and the fiber-forming polymer is dissolved in a solvent to o...

AI Technical Summary

Problems solved by technology

[0004] The current polylactic acid masterbatch spinning technology borrows from the chemical fiber masterbatch spinning technology. The color masterbatch slices are quantitatively sent into the screw extruder slice conveying pipeline through the masterbatch machine. The color masterbatch that is about to be quantitatively output depends on The self-weight of the masterbatch falls into the solid slice moving towards the screw, and the mixing uniformity is not high enough

The current masterbatch spinning equipment has a relatively simple structure. One screw extruder can only produce one color of colored yarn. Melt pipeline colored melt injection technology can realize one spinning metering pump to produce one kind of colored yarn. Generally, one The screw extruder is equipped with about 6 spinning metering pumps

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