摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the generation of 'shaving refuse' at the time of scratching. SOLUTION: A concealing layer main body, which can not be viewed in an ordinary and general state but contains a light reflecting substance transparentizing a layer irreversibly when a transparentizing means is added from the upper surface of a transparent film and a light absorbing substance having a light absorbing function, is formed on the undersurface of the transparent film to constitute a concealing seal.</p> |