| abstract |
Photohardenable electrostatic master with improved environmental latitude comprising :n (1) an electrically conductive substrate, and (2) a layer of photohardenable composition consisting essentially of :n (a) at least two organic polymeric binders, at least one having a Tg greater than 80°C and at least one having a Tg less than 70°C, (b) at least one monomeric compound having at least one ethylenically unsaturated group, and (c) a photoinitiator or photoinitiator system, the shift in transit time (a T ) of the photohardenable layer in the range of 30% ≦ relative humidity ≦ 60% and 15.6°C ≦ temperature ≦ 26.7°C is 15 or less, preferably 10 or less. n A xeroprinting process is described using the master. The master is used in graphic arts, colour proofing which duplicates images produced by printing, preparation of printed circuit boards, resists, soldermasks, etc. |