Textile nano silver antimicrobial  finishing agent  Product description  The major materials for making  this product is 0.2-0.4 nm of  colorless transparent nano silver  solution, it is widely use for  pure cotton, mixed spinning,  chemical fiber, non-woven fabric,  leather, etc. It does not change  the handle, color and state of  the treated fabrics, and the  antimicrobial rate is up to 99.9%  after being washed 50 times. Product feature  Appearance: colorless transparent  solution Particle diameter: 0.2-0.4 nm  PH: neutral (1% solution) Antimicrobial: high effective  broad spectrum sterilization, by  SGS relative authoritative  department test, antimicrobial  effect is 99.99% Washable: above 50 times (JIS L  0217 and GB/T8629)  Oxidation character: Good anti- oxidation, use for any kinds of  fabric and do not change the  color of them.  Safety: Nontoxic, innocuity, no  pollution to environment