| 摘要 |
PROBLEM TO BE SOLVED: To provide forgery prevention paper which can determine authenticity by a simple method while saving time and effort as well as cost.SOLUTION: A fibrous liquid crystal polymer that produces fluorescence by ultraviolet irradiation is mixed with a paper base material and the like, so that a unique random pattern that can be recognized by ultraviolet irradiation is formed, in order to obtain forgery prevention paper that is difficult to imitate or forge.SELECTED DRAWING: None |
