PAPERmaking! g FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 1, Number 1, 2015
Wax Test for the Surface Strength of Paper Surface fibres should be firmly bonded to the sheet when detaching steel printing plates and offset blankets from the surface, not separated or removed. One of the most common methods of determining of paper strength in the Z-direction is the wax test. The wax standards are numbered from 2A to 26A based on their adhesion power. In this study, the wax index was 10A for all samples and without meaningful difference between all by increasing in CPAM and Nanosilver levels (Figure 4).
Figure 3. Effect of CPAM and Nanosilver on smoothness of Banknote paper
In evaluation of raw material efficacy in banknote paper production, Erfani (2011) reported a wax index of 16A. Due to use of a trimming refiner and also surface sizing in the final step of a paper machine during Banknote production, a value of 10A could be accepted for surface strength of handsheets.
Figure 4. Effect of CPAM and Nanosilver on wax index of Banknote paper
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Article 3 – Hygiene (nanosilver)
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