The reached progresses in manufacturing and
improvement of paper and board during the last years involved
further developments for a better surface, especially the
printability.
Since many years DOX Brush Finishing Systems have been supplied
with success into the paper industry to reach a higher surface
quality of
Coated Papers. The finishing process can be ensued single
or double sided on-line with the board machine, in combination
with a calender or as separate systems.
DOX Brush Finishing Description
We built systems for the improvement of printing properties
of
Coated Board and papers as well as art board. These materials
are not only used for packing purposes, but especially also for
publicity print. Therefore the surface quality is especially important
for the printing process.
The finishing process is based on a combination of flexible pressure
of the filling material of the brush rollers to the web and a relative
high speed between brush rollers and board web.
The use of the DOX Brush Finishing System has the especially advantage,
that smoothness and gloss values will be increased without specific
loss in volume, i. e. stiffness.
The DOX Brush Finishing, in
the today's process controlled construction, is a new dimension
in improving certain surface properties on
Coated Board.
The brush finishing process is an enomical technique in improving
certain surface properties and is mostly used on-line with
board machines after calenders and gloss calenders.
Benefits to the Paper Industry
increased gloss and smoothness without reducing bulk and
stiffness
30 - 50 % increase of gloss, i.e. 40 - 45 % gloss 48°
Hunter
increased print gloss
long lifetime of a brush (max. 5000 - 7000 h)
installation in combination with calenders to achieve higher
bulk with high gloss of
Coated Papers
installation on-line with board machines
combination with soft calenders to increase gloss and smoothness
with low pressure
systems with unwind and rewind stations and other surface
improving devices
integrated control of the brush finishing process to guarantee
constant gloss and smoothness
Technical Features
area brush finishing instead of line brushing (no marks
and streaks)
high gloss and smoothness without reducing bulk
A.C. variable frequency drives of brush rollers for
surface improving according coating formulation
each brush roller rotates in either direction
incorporated rope system according board machine
integrated control system with PLC (Allen Bradly or Siemens
S7) could connected to process control system
Technical Specifications
heavy construction; vibrationfree
brush roller pivotings with special bearing housings
for easy brush roller changing
automatical hoistening of brush rollers
special DOX brush rollers and guide rollers
suction equipment with sound absorption
driving arrangement for brush rollers
electric control system (PLC)
Options
single or double side finishing
number of brushes
different filaments (horse hair or tampico) of brush
rollers according coating
spare brush roller in the brush unit
DOX aero surface cleaning system to keep the surface
free of any dust
Coated Papers
