A heat-ray-blocking fluororesin film comprising a heat-ray-blocking metal oxide and a hydrotalcite-type compound represented by general formula [chemical formula 1], wherein the content of the hydrotalcite-based compound is 0.03 to 1.0 wt%. Provided is a heat-ray-blocking fluororesin which can exhibit excellent heat-ray-blocking performance while keeping the properties inherent in fluororesin films, such as mechanical properties, transparency and long-term weatherability, and which is transparent and can be used out of doors for a long period of time.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ[Chemical formula 1]€ƒ€ƒ€ƒ€ƒ€ƒMg 2+ 1-a ·Al 3+ a (OH - ) 2 ·AN n- a/n ·cH 2 O (Where 0.2 ‰¤ a ‰¤ 0.35 and 0 ‰¤ c ‰¤ 1; AN n- indicates n-valent anion.)
