PROBLEM TO BE SOLVED: To provide a conductive film suitable for an antistatic material, an antibacterial material, and freezing of food.SOLUTION: The conductive film is made by applying or impregnating a binder solution 3 in which zinc oxide particles and/or titanium oxide particles are dispersed in an hydrophilic binder on a substrate 1 made of paper or nonwoven fabric and has 105&Omega/sq. to 1012&Omega/sq. of sheet resistance. When food is wrapped with this conductive film and cooled in electric field to make the food supercooled and then the electric field is eliminated and freezed rapidly, formation of large ice crystals is controlled and good freezing condition is provided and then freshness of food is preserved by freezing. Moreover, this conductive film can be used as an antistatic material and an antibacterial material.COPYRIGHT: (C)2007,JPO&INPIT【課題】帯電防止材、抗菌材及び食品の冷凍保存に適した導電性膜の提供。【解決手段】酸化亜鉛粒子及び/又は酸化チタン粒子を親水性バインダーに分散させたバインダー溶液を紙又は不織布からなる基材に塗布又は含浸させてなるシート抵抗が105Ω/□~1012Ω/□である導電性膜。この導電性膜で食品を包装し電場中で冷却して過冷却状態とし、電場をなくして急速に凍結させることにより、大氷結晶の生成を抑制して良好な凍結状態を形成し、食品を鮮度よく凍結保存することができる。また、この導電性膜は耐電防止材、抗菌材としての用途がある。【選択図】図6
