Chromophore
The molecular subunit responsible for a dye's colour, typically a conjugated double-bond system; chemical erasure destroys the chromophore while leaving the decolourised molecule in the paper fibre, where it may retain IR absorption.
The molecular subunit responsible for a dye's colour, typically a conjugated double-bond system; chemical erasure destroys the chromophore while leaving the decolourised molecule in the paper fibre, where it may retain IR absorption.
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