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Waste paper in the form
of newspaper, magazines, Kraft paper or cardboard is placed into the
MoldMaster stainless steel pulper along with water from the MoldMaster
stainless steel water storage tank and it is re-pulped.
Chemicals may be added
to the pulp mix at this stage if they are required.
Chemicals can be used to give the finished products water resistance,
wet strength or colour.
Any contaminants such
as staples, which may be in the pulp mix, are removed when the pulp is
pumped into the MoldMaster stainless steel storage tank.
The pulp mix is
transferred from the MoldMaster stainless steel pulp storage tank into the
MoldMaster stainless steel pulp moulding tank where the correct percentage
of pulp in solution is automatically achieved by diluting with water from
the stainless steel water storage tank.
The MoldMaster
stainless steel forming platen or platens fitted with the forming moulds
(dies) rotates into the MoldMaster stainless steel moulding tank and vacuum
is applied to mould the paper pulp products from the pulp mix – the water
which is drawn by vacuum from the pulp mix through the forming moulds (dies)
is returned to the MoldMaster stainless steel water storage tank for reuse
in the MoldMaster pulper.
The MoldMaster
stainless steel platen then rotates out of the MoldMaster stainless steel
moulding tank and the products are automatically transferred by compressed
air from the forming moulds (dies) to the transfer moulds (dies).
On MoldMaster semi
automatic machines the products are then blown, again automatically by
compressed air, onto a hand held supporting dryer tray for placing by the
operator into a dryer truck, which is placed into the batch dryer, or onto
the conveyor of a continuous drying machine.
On MoldMaster fully automatic machines the products are gently blown
from the transfer moulds (dies) onto the conveyor of a single pass
continuous drying machine – this eliminates one machine operator.
Specially designed air
guides within the MoldMaster drying system ensure an even and controlled
drying of the paper pulp moulded (molded) products to give the maximum
possible dimensional stability to the products.
The air within the
MoldMaster drying machines is re-circulated over the burners (oil or gas)
with a controlled amount (up to 10%) being exhausted to atmosphere.
The paper pulp moulded
packaging products are ready for use or dispatch.