Production method of high-denier CDP (cationic dyeable polyester) fibers

Abstract

The invention relates to the technical field of polyester production spinning, in particular to a production method of high-denier CDP (cationic dyeable polyester) fibers. The method includes: controlling spinning environmental temperature to be 35+ / -5 DEG C; slice drying; slice fusing; spinning jet; lateral blowing cooling; yarn bundle oiling; winding and forming. The production method has the advantages that spinning adopts a two plate one cake manner, evenness of fusant between two spinneret plates is guaranteed through scientific calculation and reasonable layout, lateral blowing speed is adjusted and optimized from the original 0.85m / s to 0.95m / s, each yarn bundle can be fully cooled, winding head tension is adjusted to be 60+ / -5cN, product intensive indicators such as breaking elongation, yarn evenness, oil content and CV value are good, good forming is achieved, and beading, bulging, lateral over-thrown yarn, turned-down edge, loosening and the like are avoided.

Description

technical field [0001] The invention relates to the technical field of polyester production and spinning, in particular to a production method of high-denier CDP cationic fibers. Background technique [0002] At present, the texturized yarns of the corresponding coarse denier specifications are produced by the texturing manufacturers through the "two-in-one" method, that is, two POY silk cakes of the same specification are used for combined production. Since different silk cakes have some differences, so There are hidden dangers in the quality of the prepared texturized products, and if one of the yarns is broken, the workers need to re-spin, and the tailing production cannot be realized. Every time a raw yarn is finished, the knitting operation must be performed again, and the production labor intensity is relatively large. The consumption of raw materials is large, and the traditional oiling method is that the whole tow is sprayed and oiled by the same oil nozzle, which is...

AI Technical Summary

Problems solved by technology

[0002] At present, the texturized yarns of the corresponding coarse denier specifications are produced by the texturing manufacturers through the "two-in-one" method, that is, two POY silk cakes of the same specification are used for combined production. Since different silk cakes have some differences, so There are hidden dangers in the quality of the prepared texturized products, and if one of the yarns is broken, the workers need to re-spin, and the tailing production cannot be realized. Every time a raw yarn is finished, the knitting operation must be performed again, and the production labor intensity is relatively large. The consumption of raw materials is large, and the traditional oiling method is that the whole tow is sprayed and oiled by the same oil nozzle, which is easy to cause some single fibers to be less oiled or more oiled due to fiber overlap The phenomenon of uneven oiling, the shape of the silk cake has a major impact on the tailing during the subsequent processing, and the poor forming is likely to cause broken ends, poor unwinding, and tailing failures during the subsequent processing.