chalking
1. The process of applying pumice, brick dust, red
earth, or a similar material, to the GOLD CUSHION prior to
laying the gold leaf on it for cutting. Chalking
helps prevent the leaf from sticking to the
cushion. 2. A printing defect caused by the use of
an ink that has been over-reduced, or an ink that
is not suitable for the paper, causing the ink
vehicle to soak into the paper leaving the pigment
on the surface where it can easily be smudged or
rubbed off. 3. A condition encountered in some
papers where fine particles of pigment break off
the sheet during finishing, converting, printing,
or subsequent use.
![[CoOL]](/icons/sm_cool.gif){kind=icon}