Breathable fiber with moisture penetrability and preparation method thereof

• Main Authors: CAO JUNQING, SHI YAOXUN
• Format: Patent
• Language: Chinese; English
• Published: 20.01.2010
• Subjects: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses a breathable fiber with moisture penetrability and a preparation method thereof. The breathable fiber with moisture penetrability consists of three hollow fibers with circular arc cross section. The circular arcs are connected in such a way that every two are externally tangent to each other, and a closed region formed by mutual connection is an entity. The hollow fibers are made from polyethylene terephthalate with the intrinsic viscosity of 0.65-0.66, the melting point of 266 DEG C, the carboxyl content of more than zero and less than or equal to 25 equivalent/g *10 , and the ash content of more than zero and less than 0.04%. The breathable fiber with moisture penetrability is hollow fibers with three holes with three outward openings so as to be breathable and have moisture penetrability. When in hot rolling, a shape with six interlaced holes is formed between the adjacent fibers and has openings, thus the fiber has excellent moisture penetrability and is one of ideal filling materi