These
high-quality uncoated papers are used in copiers, for fine
writing and printing, for archival copying and offset printing.
Uncoated woodfree papers are found in the office environment
and in books and direct mail pieces. These papers are made
to tight tolerances for book applications and for photocopiers.
Strength, bulk, smoothness and brightness are important
qualities. Caliper is often specified for use in photocopiers
and books. Linting and dusting must be minimized to extend
the life of the photocopiers and to avoid print defects
in offset printing. Recently a new bar was set for these
grades in brightness. 92 GE brightness is the new standard
in NA, but this high level of brightness has been the case
for many years in Europe. To achieve archival quality and
high brightness calcium carbonate pigments fillers and
alkaline papermaking has become the dominant technologies
to produce these grades. |
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