A SECURITY PAPER CONTAINING SILK FIBER AND A METHOD FOR DISCRIMINATING THE SAME
Security paper including silk fiber and a distinguishable method thereof are provided to distinguish authenticity of the security paper having difference through simple microscopic observation. Security paper includes silk fiber of which length is 0.3-1.0mm. The content of the silk fiber is 5 - 30 w...
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Format: | Patent |
Sprache: | eng |
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