The present invention relates to a processed platinum product, an antiviral fiber and a home electric appliance, each of which is produced employing any one of a platinum shield technique, a platinum catalyst chemistry technique and a platinum immobilization technique, and which is characterized in that a material of interest is immersed in an aqueous solution of a platinum nanocolloid containing nano-sized platinum microparticles or a mixed solution of the aqueous solution and a processing agent such as an antibacterial/deodorizing agent or an antibacterial/odor-eliminating agent and the resulting product is dried to impregnate the surface of the material with the platinum nanocolloid, thereby imparting at least one of an antibacterial effect, a bacteriostatic effect, a bactericidal effect, a deodorizing effect, an odor-eliminating effect, a water-absorbing/rapid-drying effect, a heat-generating effect, a moisturizing effect, a cooling effect, an ultraviolet-ray-shielding effect, an antiaging function, a function of making the skin beautiful, a function of making the hair beautiful, a health-maintaining function, an antiviral function, a virus-inactivating function and an antifungal function to the material. With respect to the odor-eliminating effect and the antibacterial function, these effects are increased after laundry by the catalytic action of platinum.La présente invention concerne un produit à base de platine traité, une fibre antivirale et un appareil électrique ménager, dont chacun est obtenu par lemploi de toute technique qui est choisie parmi une technique de protection au platine, une technique de la chimie des catalyseurs au platine et une technique dimmobilisation du platine, et qui est caractérisée en ce quun matériau dintérêt est immergé dans une solution aqueuse dun nanocolloïde de platine contenant des microparticules de platine nanométriques ou une solution mixte de la solution aqueuse et dun agent de traitement tel quun agent antibactérien/dés
