Monforts reports success with its
latest fully integrated Montex®Coat finishing lines
Magnetic attraction of the Montex®Coat.
A typical integrated Monforts
coating line is automated from the inlet feed to the winder and
includes weft straightening, the Montex®Coat coating device,
Montex TwinAir drying chambers, an Eco Booster heat recovery
system and a cooling zone, with visual touchscreen control via
the proven Qualitex system and full teleservice access, along
with a new hand-held device.
A number of doctor blade options are
available for the Montex®Coat coating unit, including air knife,
roller knife, magnetic roller and foam coating, in addition to
screen printing. The company also provides fully explosion-proof
lines for solvent-based coatings and for high-temperature
processes up to 320°C, such as for PTFE sintering.
There has been a notable adoption of
magnetic roller coating technology, the company, which is
headquartered in Mönchengladbach, Germany, notes – especially by
technical textiles and nonwovens manufacturers who are finishing
With this option, it is possible to carry
out applications such as full PVC coatings, pigment dyeing or
minimal application surface and low penetration treatments.
Typical products this technology is
eminently suited to range from tents and awnings, black-out
roller blinds and sail cloth to automotive interior fabrics and
“Magnetic roller coating allows a wide
range of coatings and finishes to be carried out, while being
easy to handle for operators and much easier to clean at the end
of the process,” explains Jürgen Hanel, Monforts Head of
Technical Textiles. “As important as anything, however, is the
coating uniformity it guarantees, with no difference in tension
across the entire width of the fabric – which is particularly
important when companies are operating at wide widths. With
traditional dip coating systems, he adds, as well as with many
standard knife coating technologies, there is always a
difference in the tension – and hence the amount of pressure
with which the coating is applied – between the centre and the
edges of the wide width fabrics being treated. With the use of a
magnetic roller, there is no difference in the pressure being
applied anywhere on the fabric.
“Our magnetic roller technology provides
textile finishers with an expanded range of options due to the
fully-adjustable positioning of the magnet within the roller,”
explains Hanel. “With four different magnet positions possible,
the roller can be set to operate both as a direct coating system
and as an indirect coater. We recommend the use of this
technology for companies working with fabrics of over 2.4 metres.”
Adjusting the roller surface, rather than
changing the finishing formulation, to match the required add-on
and viscosity for each coating effect required, leads to much
higher output from the line, he adds.
Furthermore, adjustments can now be made
simply and easily with the new hand-held remote controller which
has recently been introduced for the Montex®Coat unit.
“This is a really big help because making
adjustments manually was previously quite time consuming and
operators had to move between the fixed control panel and the
position of the adjustment constantly,” Henel says. “It also
allows an operator to check that the knife is precisely
positioned by simply holding the device in the position where he
or she can see and measure the gap. With the device the motors
can be controlled and the necessary adjustments carried out.”
Klaus Heinrichs, Vice-President, Monforts.
Also offered as an option for the
Montex®Coat is a carbon fibre roller for meeting even the
highest level of coating accuracy that is being demanded by the
most exacting customers today.
This provides the extreme stiffness
necessary to deal with the winding tension required in the
processing of materials such as prepregs for composites and
other heavyweight fabrics, but at the same time, a significant
improvement in coating accuracy is achieved, even for very
lightweight flexible materials. In addition, the surfaces of the
rollers are protected against both abrasion and damage from
aggressive chemicals by a special ceramic coating.
“We continue to focus on incremental
improvements to our technologies to better serve our customers –
and with our Montex®Coat we have a most versatile product in our
portfolio.” said Monforts Vice-President, Klaus Heinrichs.