|
 The
importance and use of calcium carbonate in the paper industry has
grown steadily since its introduction as a replacement for kaolin
as filler and coating pigments.
Brilliant colours and good contrast, which used
to be required only for glossy papers, are now standard for even
daily newspapers. This development could not have been possible
without calcium carbonate fillers and coating pigments.
Calcium carbonate helps produce papers with high
whiteness and good printing properties economically. Calcium carbonate
also offers:
| COMPARED TO OTHER FILLER
PIGMENTS |
COMPARED TO OTHER COATING
PIGMENTS |
| Higher Brightness |
Higher Brightness |
| Higher Strength |
Lower Binder Demand |
| Higher loading potential |
Improved Runnability |
| Easier drainage and drying |
Higher solids capability |
| Increased speed |
Lower Drying Energy |
| Lower size demand |
Equivalent Gloss |
| |
Excellent Printability |
These properties have led to calcium carbonate
becoming the most widely used mineral in papermaking within 30 years
of it being introduced.
Omya is the leading supplier of calcium carbonate
products to the global paper industry. From the introduction of
calcium carbonate to the paper industry Omya has been a world wide
leader in this growth through innovations in manufacturing technology,
product development and application expertise. Working closely with
paper manufacturers Omya is continuing to research and develop new
ways to make full and cost effective use of calcium carbonate as
a key raw material of paper.
Coated
Paper
Filled Paper
Paper Technology Centre
Literature
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