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WPPaper
will degrade and come apart if exposed to direct sun light within 60 to 90
days. Because it is a plastic (petroleum product) it dries out and begins
to become brittle.
WPPaper is
very porous and some inks (Hansa yellows) will diffuse through the film to
the reverse side of the film. Some inkjet inks (typically generic inks) will
fully migrate through the film, while some other ink formulations will not
bond with the coatings and can literally shaken off the WPPaper.
WPPaper
should be covered when stored as the coatings will absorb impurities in the
air and discolor.
WPPaper
left in contact with any surface with free color particles will absorb the
particles. A piece of WPPaper placed in your wallet between two banknotes
will absorb the ink from the notes.
After
WPPaper is left underwater for several hours, the air pockets in the film
will absorb water and the WPPaper will become translucent. If this occurs,
you can blot the excess water from the film and it will air-dry to its
original opaque state.
WPPaper
may be overprinted (varnished) with oleoresinous (oil-based resin) coatings
to seal the absorptive properties of the film after the desired image has
been applied. This will provide good resistance to coffee stains and
discoloration from environmental impurities. We have also had good success
with spray-on fixatives.
WPPaper
will feed through most laser printers and copiers. Multiple feeds are common
if tray feeding is attempted unless the WPPaper is adequately fanned
immediately prior to printing.
WPPaper
readily accepts aqueous inkjet prints. The highly absorptive substrate and
coating accepts aqueous ink and sets quickly yielding excellent results.
Colors will be slightly lighter and less saturated than those obtained on
plain or photo-inkjet papers.
If both
inkjet and toner printing will be performed on the same sheet, the inkjet
image should be applied first as the fuser stage of laser printers slightly
modifies the top surface of weatherproof paper. |
