CPC B29C 41/50 (2013.01) [B05B 1/06 (2013.01); B65D 1/26 (2013.01); B65D 25/14 (2013.01); B65D 81/3453 (2013.01); D21H 17/17 (2013.01); D21H 17/675 (2013.01); D21H 21/16 (2013.01); D21H 23/04 (2013.01); D21J 1/06 (2013.01); D21J 1/10 (2013.01); D21J 7/00 (2013.01); B05B 1/044 (2013.01); B05D 1/02 (2013.01); B05D 2203/22 (2013.01); B29L 2031/7132 (2013.01); D21H 5/0005 (2013.01); D21H 5/0047 (2013.01); D21J 5/00 (2013.01)] | 17 Claims |
1. A method of manufacturing a fiber based microwave bowl of the type including a substantially circular bottom portion bounded by an inclined circumferential side wall, the method comprising the steps of:
providing a wire mesh mold approximating the shape of the bowl;
preparing an aqueous fiber based slurry comprising up to 100% virgin fiber;
adding an embedded moisture barrier to the slurry;
immersing the mold in the slurry;
drawing a vacuum across the mold within the slurry until a desired thickness of fiber particles accumulates at a surface of the mold;
removing the accumulated particles from the mold;
drying and pressing the accumulated particles in a press to thereby form the bowl;
transferring the bowl from the press to a coating station; and
applying an acrylic based oil barrier layer to a surface of the bowl at the coating station.
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