▎ 摘 要
NOVELTY - Suspension comprises ferrite permanent magnetic material micropowder comprising maghemite, ferrous ferric oxide or ferric oxide magnetic particles grinded into ultrafine magnetic powder with particle size less than or equal to1.5 microns. The ultra-fine magnetic powder is mixed with water, dispersant and complex modifier to prepare a magnetic ultra-fine powder suspension by ultrasonic action. The preparation of suspension comprises (i) grinding the ferrite and permanent magnet material micropowder into ultra-fine powder through a grinder; (ii) mixing active graphene and modified montmorillonite according to the weight ratio of 3:1 to obtain a mixture, mixing mixture and 30-40 wt.% chitosan solution according to weight ratio 1:3 to obtain complex modifier; and (iii) adding 100-400 g/1000ml ultrafine powder of ferrite permanent magnet material into water, disperseing agglomerated ultrafine powder, adding metal powder dispersant KMT-310, stirring, and adding complex modifier. USE - Used as suspension. ADVANTAGE - The suspension is blended with viscose spinning solution. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the viscose fiber of ferrite permanent magnetic material micro powder suspension. (2) use of viscose fiber in functional magnetic fabric and traditional Chinese medicine acupuncture therapy.