"There may be included, for example, various papers such as a paper, a coated paper and a synthetic paper (polypropylene, polystyrene, polyethylene terephthalate, a resin film having a white pigment layer provided on at least one surface thereof, or a composite material in which the material described above and a paper are pasted), various plastic films or sheets such as a vinyl chloride type resin" . . . . .