Preparation method of full-dull cotton-like polyester fiber

Abstract

The invention relates to a preparation method of full-dull cotton-like polyester fibers. Full-dull polyester POY and FDY fibers sequentially pass through a first yarn guide, a yarn guide pipe, a second yarn guide, a first yarn feeding roller, a pre-interlacing device, a second yarn feeding roller, a first deformation hot box, a cooling plate, a false twister, a third yarn feeding roller, a middle interlacing device, a shaping hot box, a shaping yarn feeding roller, oiling and DTY winding forming to prepare the full-dull cotton-like polyester fibers. The first yarn guide and the second yarn guide are both yarn guide wheels; winding the tows on the first yarn feeding roller for 2-3 circles; the inferior angle formed by the tows before and after being contacted with the groove bottom of the second yarn guide is 140-160 degrees; and the linear velocity ratio of the first yarn feeding roller to the second yarn feeding roller is 1.05-1.06. Abrasion of the first yarn guide and the second yarn guide can be reduced, the tow interlacing degree is improved, no net is scattered, and the prepared cotton-like polyester fiber is good in performance.

Description

technical field [0001] The invention belongs to the technical field of polyester fibers, and relates to a preparation method of full-dull cotton-like polyester fibers. Background technique [0002] Currently on the market, the main varieties of polyester filaments are pre-oriented yarn POY, fully drawn yarn FDY, stretch textured yarn DTY and so on. In order to broaden the application of polyester filaments, cotton-like polyester fibers have been researched and developed, which include cotton-like polyester fibers prepared by using pre-oriented yarns POY and fully drawn yarns FDY as raw materials to prepare stretched textured yarns DTY. [0003] However, generally speaking, the fiber surface in ordinary polyester filaments has different intensities of gloss. If the surface gloss is too strong, it will make the textiles made from it feel uncomfortable. Therefore, in order to reduce the gloss intensity and make it more suitable for the effect of imitating cotton, the researche...

AI Technical Summary

Problems solved by technology

However, inorganic additives such as matting agents will cause the raw material tow to be rough, and will wear the existing first and second yarn guides out of grooves in a short period of time, reducing the service life of the yarn guides. Generally, 3 The first yarn guide and the second yarn guide will be worn within 5 days, and the wear between the tow and the yarn guide will also have a negative impact on the performance of the full-dull cotton-like polyester fiber, which is specifically reflected in: making the network Nozzles cannot secure the network of cotton-like polyester fibers, resulting in off-network, which will make cotton-like polyester fibers in the subsequent weaving process, due to the lack of network and the different physical properties of the two raw material filaments in cotton-like polyester fibers, Poor double-filament cohesion leads to many interruptions in the weaving process, and there are knots on the fabric surface, resulting in uneven fabric surface, which seriously affects product performance

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