| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To identify the source of a coreless toilet roll. <P>SOLUTION: An identification agent for developing a color with light of a predetermined wavelength and an agent, is mixed to an adhesive for forming a tail sealed part 3 of the coreless toilet roll, and different identification agents are used for the sources of product lots or the like. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
