Revolving cup spinning profiled polypropylene fiber rough yarn and its spinning method

Abstract

The invention discloses a rotor spinning profiled polypropylene fiber roving yarn and a spinning method thereof, relating to a yarn spinning process, in particular to a spinning process of roving yarn. The rotor spinning profiled polypropylene fiber roving yarn is spun with at least two profiled polypropylene fibers with different shapes, micro-ore structures in the axial direction and degradable components inside in the high-speed rotor air flow yarn spinning process, and the fineness of the rough yarn is 100 to 2000 tex. A plurality of exiguous spaces are formed in the profiled polypropylene fiber in the roving yarn and between the fibers, and because of the micro-ore structures produced on the fiber in the axial direction, the specific surface area is increased, and the penetration force is strong and compact, so as to obviously enhance the filtering performance of the yarn.

Description

Technical field: [0001] The invention relates to a spinning process, especially a spinning process of thick yarn. Background technique: [0002] The slubbed filter yarn spun by ordinary polypropylene fiber has low filtering effect and precision, high linear density, and small dirt holding capacity, which can no longer meet the needs of the current domestic and foreign markets. Users have put forward higher requirements for slubbed filter yarn. : ① Filtration yarn and its winding filtration products should have high filtration efficiency, large miscellaneous and dirt holding capacity, and strong adsorption capacity; ② High filtration accuracy, strong air permeability and compactness; wide range of yarn specifications, Dry well, fluffy and smooth, low linear density, reduce filtration cost; ③The yarn must have good spinnability, antistatic, no foam, etc. In view of the above new requirements, the cross-sectional shape of the polypropylene fiber must be profiled, To complicate...

AI Technical Summary

Problems solved by technology

[0002] The slubbed filter yarn spun by ordinary polypropylene fiber has low filtering effect and precision, high linear density, and small dirt holding capacity, which can no longer meet the needs of the current domestic and foreign markets. Users have put forward higher requirements for slubbed filter yarn. : ① Filtration yarn and its winding filtration products should have high filtration efficiency, large miscellaneous and dirt holding capacity, and strong adsorption capacity; ② High filtration accuracy, strong air permeability and compactness; wide range of yarn specifications, Dry well, fluffy and smooth, low linear density, reduce filtration cost; ③The yarn must have good spinnability, antistatic, no foam, etc. In view of the above new requirements, the cross-sectional shape of the polypropylene fiber must be profiled, Complicated to form a larger specific surface area, more voids and microporous structures to accommodate impurities and dirt, to meet the above requirements for filter yarns

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