Continuous spinning process for viscose coarse denier flat filament

Abstract

The invention discloses a continuous spinning process for a viscose coarse denier flat filament, which comprises the following steps that: viscose measurement and forming, washing, drying and tube forming; the measured viscose reacts and is formed into filament strips in a glass forming tube; the filament strips formed in the glass forming tube are tractioned to a sink by a pressure roller of the multi-stage sink to be washed in a plurality of stages; the filament strips on the tail end of the multi-stage sink are tractioned to a steam dryer by the pressure roller; and the steam dryer dries the filament strips, and then forms the dried filament strips into a tube. The invention completes a plurality of procedures on a production line, optimizes the process, and achieves the purposes of shorter process, reduced process fluctuation, small quality difference between batches, reduced end breakage, higher yield, lower cost, higher quality and lower labor intensity.

Description

Technical field: [0001] The invention belongs to the viscose filament production process, in particular to a continuous spinning process suitable for viscose thick denier flat yarn products. Background technique: [0002] The existing coarse denier flat yarn production process consists of a semi-continuous spinning machine plus winding, a set of washing system, a drying kiln, and twisting and barreling equipment. Production process: After the viscose is metered, it reacts with acid through deep bath spinning, and then fully reacts with acid on coagulation rollers and acid removal rollers, and then it is coiled into bundles by a stranding machine. Then wash with water, alkali, acid, etc. in the washing system. It is dried by the drying system; finally, the final product is formed in the cylinder forming system. [0003] The problem of the above-mentioned production process is that each production process is composed of multiple equipments, that is to say, each process is ca...

AI Technical Summary

Problems solved by technology

[0003] The problem of the above-mentioned production process is that each production process is composed of multiple equipments, that is to say, each process is carried out on different equipments, and the products must be transferred to the next process, resulting in a long process flow, large process fluctuations, and batch There are quality differences between them, easy to break, low yield, high cost, low quality, and high labor intensity

In the production process, due to the large span between each system equipment, there are many factors affecting production in the process, such as: a. Because the original spinning machine transmission mechanism is used, the spinning speed is limited and the spinning speed is increased.

b. When skeining, it does not match the speed of the spinning machine, resulting in unstable operation of the skeining machine; c. The washing process of the filaments is hoisted by crane, so the hoisting must be soaked after forming a batch, which has poor consistency. ; d, the silk strips are washed in the washing system in gaps, and the time is long; e, the silk strips are not completely reacted, and the remaining degree of esterification is high; f, in the shape of a bundle in the drying system, the internal silk strips cannot be effectively drying

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