Polylactic acid bamboo charcoal slice production process

A production process and polylactic acid technology, applied in the field of polylactic acid bamboo charcoal chip production process, can solve the problems of high polymer melt viscosity, affecting the use effect, affecting the spinning quality, etc., and achieves an increase in moisture regain and cost savings. , the effect of simple structure
CN105504236BActive Publication Date: 2018-06-26HENAN LONGDU BIOLOGY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN LONGDU BIOLOGY TECH
Publication Date
2018-06-26

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Abstract

The invention provides a production process for polylactic acid bamboo charcoal slices. The production process includes the following steps that 1, lactide and bamboo incense charcoal micro-powder are added to a stirring tank to be stirred; 2, a mixture of lactide and the bamboo incense charcoal micro-powder drops in a preliminary polymerization tank through a first pipeline to be preliminarily polymerized; 3, polylactic acid bamboo charcoal melt drops in a final polymerization tank through a second pipeline to be finally polymerized; 4, a third valve at the bottom of the final polymerization tank is switched on, the polylactic acid bamboo charcoal melt is extruded out of a spinneret plate and metered through a third metering pump, and the polylactic acid bamboo charcoal melt is cooled through water; 5, the polylactic acid bamboo charcoal melt is cooled through the water, solidified to normal temperature and then sliced. Polylactic acid is modified through the nano-scale bamboo incense charcoal micro-powder, the initial modulus of fibers produced through the production process is reduced, the moisture regain is increased, abrasion resistance is improved, and the breathability and hand feeling of the fibers are obviously improved.
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Description

technical field

[0001] The invention belongs to the technical field of polylactic acid fiber production, and in particular relates to a polylactic acid bamboo charcoal slice production process. Background technique

[0002] Polylactic acid (PLA) fiber is made from starch-containing agricultural products such as corn, wheat, and sugar beet. After fermentation to produce lactic acid, it is then made by polycondensation and melt spinning. The raw materials of PLA fiber come from a wide range of sources. It can be decomposed into carbon dioxide and water by microorganisms in soil or seawater. When burned, it will not emit poisonous gas and cause pollution. It is a sustainable ecological fiber. The fabric has good hand feeling and drapability, anti-ultraviolet radiation, low flammability and excellent processing performance. It is suitable for various fashion, casual wear, sporting goods and sanitary products, etc., and has broad application prospects.

[0003] Polylactic acid (...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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