TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The content of pigment 1-200 pts. wt. with respect to 100 pts. wt. fluoropolymer. The content of surfactant is 0.1-20 pts. wt. with respect to 100 pts. wt. fluoropolymer.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The fluoropolymer does not contain crosslinkable functional group. The fluoropolymer is homopolymer containing vinylidene fluoride, polyvinylidene fluoride, polyvinyl fluoride, vinyl fluoride, tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, trifluoroethylene, hexafluoroisobutylene, (perfluorobutyl)ethylene, perfluoromethyl vinyl ether, perfluoroethyl vinyl ether, perfluoropropyl vinyl ether, perfluorohexyl vinyl ether, perfluoro-2,2-dimethyl-1,3-dioxole and/or perfluoro-2-methylene-4-methyl-1,3-dioxolane and/or their copolymer. The content of comonomer is 0.5-50 wt.% in fluoropolymer. The water-dispersible binder is polyurethane resin, silane-modified urethane resin, polyacrylic resin, polyurea resin, polyamide resin, polyolefin resin, polyvinyl acetate resin, polyether resin, alkyd resin, urethane-acrylate copolymer, vinyl urethane copolymer, ethylene-vinyl alcohol copolymer, silicone-acryl-urethane copolymer, ethylene-vinyl acetate copolymer and/or acryl-modified polyester resin. The content of water-dispersible binder is 5-50 pts. wt. with respect to 100 pts. wt. fluoropolymer. The aqueous dispersible composition further contains surfactant. Preferred Layer: The material of back sheet is metallic film or macromolecular film. The macromolecular film is acrylic film, polyolefin film, polyamide film, polyurethane film and/or polyester film. The polyester film is polyethylene terephthalate and/or polybutylene terephthalate film. Preferred Properties: The fluoropolymer has weight average molecular weight of 5-100, melting point of 80-175 degrees C and average particle diameter of 10 mu m or less. The thickness of material is 50-500 mu m. The thickness of resin layer is 1-50 mu m.