To provide a diallyl phthalate resin decorative sheet which does not cause the interlaminar separation of ink, the peeling of paper and the diffusion of formaldehyde.
Resin-impregnated decorative paper, which is successively impregnated with a resin liquid (A) comprising an oligomer having a polymerizable unsaturated group and a resin liquid (B) containing a diallyl phthalate resin, and a core material are laminated on decorative paper for the decorative sheet, and the whole is molded by a plate pressing machine and a continuous pressing machine. The impregnation ratio of the resin liquid (A) is set to 5-45% in a calculation method represented by a numerical formula 1. As the oligomer having the polymerizable unsaturated group used in the pretreatment of the decorative paper, an unsaturated polyester resin, a vinyl ester resin, an acrylic urethane oligomer, an acrylic oligomer and the like are used.
OGINO TOMOYA
KAEDE KAZUKI
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