Negative oxygen ion polyester fiber with four-leaf-shaped skin-core structure and preparation method thereof

• Main Authors: TENG ZHAOBU, TENG YUJUN
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2021
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention belongs to the technical field of functional fibers, and relates to a negative oxygen ion polyester fiber with a four-leaf-shaped skin-core structure and a preparation method thereof. The composite fiber is composed of a modified polyester/functional additive skin layer and a polyester core layer, wherein the mass ratio of the skin layer to the core layer is 1:1-1:4; and modified polyester in the skin layer is poly(2,5-dihydroxy ethylene terephthalate) resin or poly (2-hydroxy ethylene terephthalate) resin, and functional additives are non-radioactive natural mineral powder withan obvious negative ion generation effect and include but not limited to tourmaline, serpentine and rare earth minerals. Spinning is carried out through a four-leaf skin-core structure special-shapedspinneret plate to obtain the polyester fiber with the four-leaf skin-core structure. The prepared fiber material is good in fiber uniformity due to the fact that the skin layer is the modified polyester and is good in compati