Improved method for producing colored and differential terylene fibre by melt direct spinning on-line adding technology

Abstract

A method for manufacturing a colored and differential polyester fiber through an improved fused mass direct-spinning online additive technique belongs to the technical field of synthetic fiber manufacturing method, aiming to provide a method for manufacturing a colored and differential polyester fiber through the improved fused mass direct-spinning online additive technique which is convenient for manufacturing black and dark color polyester fibers. The method comprises the following technical points: before polyester fused mass enters a spinning box body, a dried and fused modified raw material is fed into the spinning box body, and is sufficiently and evenly mixed with the polyester fused mass through an efficient static mixer; and after filtration, the modified raw material and the polyester fused mass are fed into the spinning box body together so as to carry out spinning. The modified raw material is subjected to drying and melting, and is indirectly injected into the efficient static mixer, is sufficiently and evenly mixed with the polyester fused mass, and is subjected to filteration. The technical points ensure excellent fluidity and filtering performance, and prolong the switching cycle of a filter and the change cycle of a spinning component; moreover, the method reduces the loss of color master batch during filtration as well as the production cost for black and dark color fibers.

Description

technical field

[0001] The invention relates to a method for producing colored and differentiated polyester fibers by an improved melt direct spinning on-line addition technology, and belongs to the technical field of synthetic fiber production methods. Background technique

[0002] The production of differentiated fibers and colored fibers is a new technology in the production of chemical fibers. With the rapid development of the chemical fiber industry, the production technology of differentiated fibers and colored fibers has been paid more and more attention, and the development and application of new production technologies has become one of the development trends of the chemical fiber industry.

[0003] Chinese Patent No. 200610096677.5 discloses a method for producing colored and differentiated polyester fibers by melt direct spinning on-line additive technology. A method for producing colored and differentiated polyester fibers by melt direct spinning on-line additio...