Production technology of polyester super-delustred flat filaments

Abstract

A production technology of polyester super-delustred flat filaments includes the following production technological processes that (1) a full-dull chip is subjected to pre-crystallization and drying,and the dried chip is placed in a spiral extruding machine for spinning melt extrusion; (2) the fused mixture is filtered through a pre-filter, and then the filtered mixture is weighed by a metering pump; (3) the weighed mixture is conveyed into an FDY hot roller spinning assembly to be sprayed, and the sprayed filaments are cooled and formed through side air blowing; (4) the cooled and formed filaments are oiled by an oil nozzle, and a preservative is added into an oiling agent; (5) the filaments oiled by the oil nozzle are integrated into tows through an interlacing machine, and finally thefilaments are wound through a winding head, wherein a first hot roller temperature is 55-65 DEG C, and a second hot roller temperature is 55-65 DEG C. The technology improves the chip drying technology, properly lowers the drying temperature, prolongs the drying time, and reduces the water content. An FDY one-step method production line is adopted, it is ensured that the quality of products is excellent, broken ends and broken filaments are reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field related to the production of chemical fiber products, and in particular relates to a production process of polyester super-dull flat yarn. Background technique [0002] For the general public, with the continuous improvement of living standards, the demand for special-shaped fiber processed textiles is more urgent. For chemical fiber enterprises, due to the continuous expansion of chemical fiber production capacity and scale in recent years, the production capacity of conventional polyester varieties is overcapacity, and the market competition is fierce. , Product prices continue to decline, and corporate benefits continue to decrease. Therefore, developing differentiated fibers that are urgently needed in the market is the only way to improve product market competitiveness and increase added value. At present, most of the special-shaped fibers used in domestic textiles are dependent on imports. Only by developing di...

AI Technical Summary

Problems solved by technology

At present, there are still many manufacturers at home and abroad in production. The production route adopts FDY one-step method and POY-DTY two-step method. The overall production process tends to be mature, but in practice, it is often found that wool and ends are broken during the production process. , and will have the disadvantages of overlapping wires and uneven quality of the inner and outer layers. There are many reasons for this