Magnetic fibre and manufacture method thereof

Abstract

The invention discloses a magnetic fiber and a manufacture method thereof. The magnetic fiber has a sheath core structure in the volume ratio of a sheath to a core bing 3:7-7:3 and is characterized inthat the fiber sheath layer material comprises the following components in percentage by weight: 57-89.7 percent of sheath layer polymer, 10-40 percent of magnetic powder and 0.3-3 percent of bulkingagent; and the fiber core layer material comprises the following components in percentage by weight: 80-97.5 percent of core layer polymer, 2-15 percent of metal power and 0.5-5 percent of coupling agent. The manufacture method of the magnetic fiber adopts the magnetic fiber components in percentage by weight and comprises the following processes: 1. preparing the magnetic fiber sheath layer material; 2. preapring the magnetic fiber core layer material; 3. preparing a sheath core composite magnetic fiber and spinning the sheath layer material and the core layer material obtained in the step 1and the sep 2 according to the volume ratio of the fiber sheath to the fiber core being 3:7-7:3 into a long fiber thread or a short fiber thread; 4. carrying out fiber magnetization processing and magnetizing the long fiber thread or the short fiber thread obtained in the step 3 in the magnetic field strength of 11,000 gausses for 0.05-2 minutes.

Description

technical field [0001] The invention relates to functional chemical fiber technology, in particular to a magnetic fiber and a manufacturing method thereof. Background technique [0002] Magnetic fiber is a functional fiber with certain magnetic properties. There have been many patent literature reports on magnetic fibers at home and abroad. For example, Japanese Patent Hei 3-130413 introduces a method for manufacturing magnetic fibers by the skin-core method. The fiber skin layer is a polymer, and the core layer is a mixture of polymer and magnetic powder, and the content of the magnetic powder accounts for 5-70% of the fiber core material. Chinese patent document CN1252460 discloses a kind of magnetic health care fiber manufacturing technology. It is a magnetic health-care fiber made by fully mixing magnetic particles with far-infrared particles and carrier resin in proportion to make masterbatch, and then mixing with raw resin in proportion and spinning. The fibrous har...

AI Technical Summary

Problems solved by technology

Although the fiber can have both magnetic and far-infrared functions, it also has the following disadvantages: on the one hand, due to the low content of magnetic powder, the magnetic properties of the fiber are not obvious; on the other hand, the far-infrared particles achieve For the health care effect on the human body, the magnetic powder particles play a health care effect on the human body through a magnetic field of a certain strength. Because the health care mechanism of the two is different, the magnetic powder and far infrared are mixed and used to make magnetic far infrared health care fibers, which will make them The functions of each other interfere with each other, resulting in a decline in function, especially affecting the performance of its magnetic properties.

However, within the scope of the applicant's search, there are no public reports on the magnetic fibers that have both magnetic functions and electromagnetic wave absorption and shielding functions (including microwave absorption and shielding functions).