Resonant cavity broadband dielectric spectroscopy (BDS) is an ideal technique for the non-destructive analysis of paper and printing substrates, including high value materials such as security papers and synthetic papers used in smart cards. In this talk, a novel method based on BDS which enables the quantification of the percent post-consumer waste (PCW) fiber content in paper, taking into account the effects of colorants and optical brighteners, will be discussed. This method has proved effective in the quantitative discernment of non-wood fiber species such as cotton-, cocoa husk-, sage-, and bamboo-blended papers. This method is also applicable to the analysis of non-cellulosic, synthetic printing substrates.

Non-Destructive analysis of printing substrates via resonant cavity broadband dielectric spectroscopy

254th National Meeting (2017)

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