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ROBUST COLOUR SHIFT SECURITY FILM WITH WIDE SPECTRUM COMPLEX SPECTRAL VALUES AND SECURITY THREAD MADE THEREFROM
ROBUST COLOUR SHIFT SECURITY FILM WITH WIDE SPECTRUM COMPLEX SPECTRAL VALUES AND SECURITY THREAD MADE THEREFROM
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机译:具有宽频谱复合光谱值和由其制作的安全线的鲁棒色移安全膜
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摘要
The invention discloses a robust colour shift security film with more complex and consistent spectral values, for manufacturing high security thread for further insertion into high security substrates, like bank note paper.
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