WEKO NON-CONTACT RELEASE AGENT APPLICATION ON CONTINUOUS PRESSES

For a clean working environment and increased board quality, water and a release
agent are applied before the press, resulting in many advantages for production.
Users often use release agents in powder form, which of course leads to dust and
is very maintenance-intensive. The application of water and release agent offers a
simple solution and this also brings many advantages for your product. So you can
increase your quality and speed up your production.

Water or water + release-agent will be applied very precise and repeatable even
across the mat. The water transports the heat from the press faster, deeper and
more even through the mat and reduces the press time. The release agent helps
additionally to get smooth and fast release from the forming and the press belt even
with minor damage in the belts there is no sticking. The application of fluid is
adapted to the speed of the machine, only the desired amount is applied on the mat.
The easy to operate, trouble-free and reproducible fluid application is an important
feature for the success of our worldwide customers in the wood panel board industry.
Water makes fibers more smooth and flexible and will be easier to press homogenous.
This results in higher board density on bottom and top side and therefore
higher bending strength together with a release agent the perfect combination of
tool and product improvement.
The results of our Investigation together with the Buesgen-Institute show, that all
variants in which the fibre mat was moistened before pressing have higher bending
strengths than the reference without fibre mat moistening. A high surface density
should therefore result in a high bending strength. This can be derived from the density
profiles determined.

The fluid will be first applied onto the forming belt before the forming station and
transfer the moisture to the mat core. The second unit with high regulation device is
usually located behind the pre-press and applies onto the mat surface with height
regulation device.
Spray disks, they so-called rotors, are arranged side by side in the rotor carrier.
They are supplied with the desired amount of fluid, therefore, multi-daylight presses
are also no problem for the system. The rapid rotation of the rotors produces a uniform
flow of microscopically small droplets. The individual spray fans are seamlessly
arranged side by side providing uniform application.

The WEKO-FlowTec fluid supply unit has an integrated band filter which replaces
itself when it is clogged, ideal for 24/7 production with the lowest possible maintenance
effort.

Your Benefits
• Increase your press speed
• Higher surface density
• Improved bending strength
• Less or no sanding
• Longer sanding tool lifetime
• Smoother surface for easy lacquering
• Ideally suited for 24/7 production
• Independent of the existing water pressure

The system can be used on the whole range of your products for thick, thin small
and large wood based boards therefore you can reach your point of investment after
short time.
Increase your productivity due to press time reduction up to 30% and more -
depending on the type of board, used material, thickness and further parameters and
improve your boards quality.

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