| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a floor material for a staircase reducing noise during going up and down of the staircase made of metal or concrete and comprising a vinyl-chloride-based resin composition superior in wear resistance, durability, further nonslip and cushioning property. SOLUTION: In the floor material for the staircase comprising vinylchloride- based resin composition formed integrally by connecting to substantially orthogonally fold a tread face coating part 11 and a rise coating part 13 covering the tread face and the rise of the staircase respectively via a corner part coating part 12 covering the corner part of the front end of the staircase, at least the corner part coating part 12 and a vertical cross section structure at the neighboring position are made two layers or more layered structure of a base material layer 1A and a surface layer 1B, and an amount of addition of a plasticizer and a filler of the vinylchloride-based resin composition constituting the surface layer 1B is set at 30-70% of the addition amount of the plasticizer of the vinylchloride-based resin composition and 0-60% of the addition amount of the filler constituting the base material layer 1A.</p> |
