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Coating Optimization and Control
for:
- Production increase
- Cost savings
- Better paper quality
- Other benefits
- Production increase after testing
with ACAV A4
Higher production rate:
- Higher solids, less water to be evaporated,
more drying capacity.
- Speed and production increase when dryer limited
production.
- Higher solids, higher coat weight with good
CD profiles, higher basis weights possible.
Less web breaks:
- Lower ultra high shear viscosity, lower blade
load, less web tension increase.
- Higher solids, better water retention, less
moistening of base paper.
- Better dispersion stability of coating color
components.
- Reduced variation of solids content and temperature
in recirculation.
- Better paper quality and reduced amount of
broke:
- Better gloss and smoothness, reduced need
for calendering, better bulk and stiffness
- Higher solids, less binder migration, less
mottling, better dry and wet pick
- Cost savings
Less web breaks:
- Inexpensive raw materials in base paper,
more fillers, more mechanical pulp or deinked
fiber, less long fiber chemical pulp.
- Cost effective coating pigments without titanium
(e.g. GCC, PCC, high brightness kaolin) can
be utilized.
- More starch, less latex or PVA, especially
in precoatings.
Higher solids:
- Less binder migration, better surface strength,
lower binder level.
- Less mottling, inexpensive water soluble binders
like starch are possible.
- Better paper quality
Higher solids:
- Less binder migration, less mottling, better
dry and wet pick.
- Higher coat weight possible, better gloss
and smoothness.
- Better coating coverage, better gloss and
smoothness with same coat weight.
- Possibility to optimize coating colors so
that application solids is as close to immobilization
solids as possible.
- Less binder migration, better coating structure.
Better color stability -
consistent product quality:
- Effect of temperature variations on ultra
high shear viscosity.
- Effect of fiber and filler contamination on
color rheology.
- Other benefits
Reduced need for pilot
trials:
- Fast screening of coating colors
- Fast temperature variation tests
- Fast test of different kind of thickeners
- Good correlation with required blade load
- Coating flow simulation at production speed.
Excellent correlation with runnability in
reverse gravure coating applications using acrylic
adhesive dispersions.
Using ACAV A4 you will safe
costs and make profit also when paper prices go
down!
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