blueprint paper
A paper produced from cotton fiber pulp, bleached
chemical wood pulp, or combinations thereof, in
basis weights of 12 to 30 pounds (17 X
22�). It has a well-formed, fairly smooth
surface, good wet tensile strength, and, although
well-sized, uniform absorbency. Blueprint paper
must not contain chemicals which might have an
adverse effect on its sensitizing materials. The
paper is sensitized by treating the base paper
with chemicals, including potassium ferrocyanide,
as well as with iron salts, such as the oxalates
and tartrates. (17 )
![[CoOL]](/icons/sm_cool.gif){kind=icon}