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This is a phenomenon in which filler (microscopic
inorganic material) on the surface of YUPO®
adheres to and builds up on the blankets during printing
such that the blankets become white and sucker marks
or roller marks appear on the printed materials, producing
an overall roughness.
- Paper dust is comparatively more prevalent in
the grades TPRA, BLR, SGS (powdered product),
and
QJJ.
- Grades that has no paper dust issues are SUPERYUPO®
(FRB, FRR) and ULTRAYUPO® FEB.
Although the effect varies depending on printing conditions
(extent of ink emulsification) and differences in print
content, it is possible to carry out continuous printing
of 2,000 to 5,000 sheets using FGS. (With BLR and QJJ,
an effect may become apparent at around 500 sheets).
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