| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming body having a reproduction restraining image, which is latent before reproduction and the existence of which is not recognized and, through a reproduction work, a desired image of which emerges on a reproduced matter so as to firmly visualize its contents. SOLUTION: The reproduction restraining image is formed by combining two kinds or more of fine line groups made of a plurality of fine lines having uniform line width and uniform feeding pitch. One fine line group consists of a plurality of fine inverted trapezoidal wave-like lines having uniform line width and uniform feeding pitch, while the other fine line group is arranged so as to surround the one fine line group and consists of a plurality of fine straight lines having uniform line width and uniform feeding pitch under the state that both ends of respective fine inverted trapezoidal wave-like line of the one fine line group are respectively connected with one end of the fine line of the other fine line group and both the fine line groups before their reproduction can not be distinguished from each other with the eye.
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