Grammage dependence of paper thickness

William Sampson, Merve Engin, Jean-Francis Bloch

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We present a simple model for the nonlinear dependence of paper thickness on grammage and compare this to the results of a parallel experimental investigation using handsheets. From conventional measurements of grammage and thickness combined with X-ray microtomographic analysis, we demonstrate the influence of the structure of sheet surfaces on the porosity profile and hence on the sheet thickness. Further, we show that despite their higher porosity, the mean pore height in low grammage sheets is lower than that in the higher grammage sheets, implying that pore heights in surface layers are smaller than those in the bulk.
Original languageEnglish
Pages (from-to)30-40
JournalAppita Journal
Issue number1
Early online date15 Jan 2019
Publication statusPublished - 2019


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