PURPOSE: To obtain a thermally shrinkable antimicrobial resin film capable of stably retaining excellent antimicrobial effect by a small amount of antimicrobial particles, readily covering three-dimensional articles because of heat-shrinkable property and suitable for covering medical instrument, etc., of hospital by incorporating specific antimicrobial particles into a heat- shrinkable resin film.

CONSTITUTION: This film is obtained by incorporating (A) an antimicrobial particles comprising amorphous calcium phosphate having antimicrobial material into (B) a resin film having heat shrinkable property (e.g. ionomer resin film, ethylene-ethyl acrylate copolymer film or ethylene-vinyl acetate copolymer film), and the average particle diameter of the component A is larger than the average thickness of the component B.