TILE CARPET WITH EXCHANGE SIGN AND CARPET FLOOR WITH EXCHANGE SIGN

摘要

PROBLEM TO BE SOLVED: To develop a tile carpet and a tile carpet floor having appearance same as conventional ones, able to objectively define an exchange stage and an exchange range by using a simple and inexpensive detection means for the exchange stage as far as possible.;SOLUTION: There are provided the tile carpet with exchange sign in a part of the surface of which is coated with a pollutant proof material, the carpet floor with exchange sign using the tile carpet with exchange sign and the carpet floor with exchange sign using the tile carpet the whole surface of which is coated with the pollutant proof material, mixed with a conventional tile carpet.;COPYRIGHT: (C)2007,JPO&INPIT