Method for Applying a Barrier on Moulded Fibrous Product and a Product Produced by Said Method
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United States of America Patent
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Issued Date -
Nov 1, 2012
app pub date -
Nov 26, 2010
filing date -
Nov 27, 2009
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Abandoned
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Abstract
The present invention relates to a method of producing a moulded fibrous product 5, said method comprising a product formed from an aqueous pulp suspension 11, said product 5 having a surface 50; covering the surface 50 with a surface barrier material 45 applied in liquid form; and drying the product 5 and the applied surface barrier material 45 to produce a moulded fibrous product 5 having a surface barrier 46; wherein a porous mould 10, 20 is provided for supporting the product 5 during the application of the surface barrier material 45; whereby the liquid surface barrier material 45 spreads on the surface 50 to fill any possible areas, so that a moulded fibrous product having a tight surface barrier 46 will be produced.
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