High performance pbt special fiber production process

Abstract

The invention relates to a production process of high performance poly butylenes terephthalate (PBT) special fiber, which comprises the following steps: PBT slices are put into a melting device (1) for melting; melt enters into a mixing device (3) for being stirred and fully mixed with nanometer silver ions which are added through a feeding device (2) while the melt entering; the mixed melt entersinto a fiber drawing device (4) for fiber spinning; the obtained fiber material enters into an upper heating box (6.1) and a lower heating box (6.2) for heat moulding after cooled by cross air blow in a cooling device (5); the winding tension of the moulded fiber material is regulated by guiding direction through a plurality of guide wheels repeatedly; and finally the fiber material is rolled upinto rolls by a fiber winding roller (8) after being cooled and oiled by a cooling oil box (7). The production process of the high performance PBT special fiber enables the strength and the toughnessof the fiber to be improved during the production process, reduces the problems in broken ends and filament drifting and endows the produced monofilament to be high in strength and toughness, good inelasticity and low in broken end rate.

Description

technical field [0001] The invention relates to a high-performance PBT special fiber production process, which belongs to the field of special fiber preparation. Background technique [0002] As various manufacturers increase the research and development and production of PBT elastic yarn, the technology of PBT elastic yarn has been greatly improved, and its superior characteristics have gradually been highlighted in the application of various fields; PBT elastic yarn solves the problem of nitrogen fiber There are many problems such as difficult dyeing, excess elasticity, complex weaving, unstable fabric size, and nitrogen fiber aging during use. With the development and demand of the market, PBT elastic yarn will gradually replace spandex to produce covering yarn, and PBT high elastic yarn It has wide application prospects in the fields of hygiene materials and clothing, and is a competitive new product in the future elastic fiber market; The washing resistance of the fabr...

AI Technical Summary

Problems solved by technology

[0002] As various manufacturers increase the research and development and production of PBT elastic yarn, the technology of PBT elastic yarn has been greatly improved, and its superior characteristics have gradually been highlighted in the application of various fields; PBT elastic yarn solves the problem of nitrogen fiber There are many problems such as difficult dyeing, excess elasticity, complex weaving, unstable fabric size, and nitrogen fiber aging during use. With the development and demand of the market, PBT elastic yarn will gradually replace spandex to produce covering yarn, and PBT high elastic yarn It has wide application prospects in the fields of hygiene materials and clothing, and is a competitive new product in the future elastic fiber market; The washing resistance of the fabric obtained by the treatment process is poor. After repeated washing, the antibacterial performance of the fabric decreases significantly; During the wire drawing process, the surface of the monofilament is easily broken, the interior is hollow, and the filaments and ends are broken. Generally, the curl of the PBT fiber is heat-set, which has poor permanence, poor elastic recovery, and poor fiber cohesion, which is not conducive to textile processing.

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