Superfine full-dull sheath-core fiber

Abstract

The invention provides superfine full-dull sheath-core fiber which is prepared through the following steps: firstly, adding nano-grade silica and pearl powder as dulling agent to chemical fiber polyester; spinning the blended chemical fiber polyester, nano-grade zinc oxide and water-soluble polyester by a spinneret plate at the same time, wherein the cross section of the silk thread takes the shape of an ocean island, i.e., the chemical fiber polyester, the nano-grade zinc oxide is at the center of each island, and the water-soluble polyester constitutes the ocean; and then, dissolving the water-soluble polyester to obtain the superfine full-dull sheath-core fiber.

Description

technical field [0001] The invention relates to the field of fibers, in particular to an ultrafine full-dull sheath-core fiber. Background technique [0002] Microfiber is a kind of differentiated fiber that has developed rapidly in recent years. It is called a new generation of synthetic fiber. It is a high-quality and high-tech textile raw material. A typical representative of new synthetic fibers; due to the small diameter of microfiber, its bending stiffness is very small, and the fiber feels particularly soft; the specific surface area of ​​microfiber is large, so the coverage, bulkiness and warmth of microfiber fabrics It has been significantly improved, and the fiber with a large specific surface area has more contact times with dust or oil, and there are more opportunities for oil to penetrate from the gaps between the fiber surfaces, so it has a strong cleaning function; the ultra-fine fiber is made into an ultra-high-density fabric, the fiber The gap between the d...

AI Technical Summary

Problems solved by technology

[0003] Microfiber can be made into imitation silk, imitation jeanette, imitation suede, imitation wool and high-density products, but the fiber has poor sun protection