| 摘要 |
PURPOSE:To check use frequencies so that necessary and unnecessary documents can be easily judged by adhering an elastic sheet provided with a separator for protecting an applied adhesive to a color developing sheet which is colored by friction. CONSTITUTION:This label 1 for measuring the use frequencies is constituted by adhering the color developing sheet 3 which is formed by applying a color developing material 3b on a base 3a consisting of a polyester film and further applying a color developer 3c added containing microcapsulated colorless dyes 3c1 thereon to the rear surface of the elastic sheet 2 which is a foamed material provided with the separator 2b for protecting the applied tacky adhesive 2a or is formed by using a blank material, such a rubber material, having elasticity. The label for measuring the use frequencies otherwise consists of a contact label 5 which is formed by applying a color developing agent 5c contg. microcapsulated colorless dyes 5c1 into a base 5a consisting of a polyester film to an elastic sheet 4 having a tacky adhesive 4a and separator 4b attached and a color developing label 6 formed by applying a color developer 5b to a base 6a provided with a tacky adhesive 6a1 and a separator 6a2. |
