PROBLEM TO BE SOLVED: To provide a film material for a tent structure which can suppress occurrence of mold or algae for a long period of time to the minimum so as to prevent appearance contamination of the tent structure caused by occurrence of the mold or the algae.SOLUTION: In a flexible sheet having soft vinyl chloride resin coating layers on both surfaces while using a fiber fabric as a base material and has an antifouling layer provided on at least one surface of the soft vinyl chloride resin coating layer, the antifouling layer contains one or more chelate complexes selected from a silver ligand, a copper ligand, a zinc ligand and a nickel ligand, and an antibacterial organic compound and stabilizes an antibacterial effect, the chelate complex and/or the antibacterial organic compound which are carried on inorganic porous particles are used, as needed, and thereby the antibacterial effect is stabilized and kept for a long period of time.SELECTED DRAWING: None【課題】テント構造物が黴や藻の発生で外観汚染を生じることが無いようにするために、黴や藻の発生を長期間最小限に抑止することができるテント構造物用の膜材の提供。【解決手段】繊維織物を基材として、その両面に軟質塩化ビニル樹脂被覆層を有し、かつ、この軟質塩化ビニル樹脂被覆層の少なくとも一方の面に防汚層が設けられた可撓性シートにおいて、防汚層が、銀配位子、銅配位子、亜鉛配位子、及びニッケル配位子から選ばれた１種以上のキレート錯体と、防黴性有機化合物とを含むものとして防黴効果を安定化し、必要に応じてキレート錯体及び／又は防黴性有機化合物は無機多孔質粒子に担持させたものを用いることで防黴効果を長期間安定持続させる。【選択図】なし
