Printed vulcanized fibre-based product and process for...

B - Operations – Transporting – 32 – B

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B32B 29/02 (2006.01) B27D 5/00 (2006.01) B32B 5/26 (2006.01) B32B 37/12 (2006.01) B32B 38/14 (2006.01) B44C 1/16 (2006.01) D21H 27/38 (2006.01) B44F 9/02 (2006.01)

Patent

CA 2549909

A three-ply product includes a particleboard core assembled with a patterned vulcanized fibre sheet or layer on each surface. One of the vulcanized fibre sheets may have a preprinted decorative pattern provided thereon. The other vulcanized fibre sheet may also be decorative, or merely a plain sheet of vulcanized fibre. The product is useful for woodworking applications, and may be processed (i.e., stained, sanded, lacquered, etc.) like a natural wood product. Unlike prior vulcanized fibre processes, the process of making the vulcanized fibre sheets preprints a pattern, in a preprinting process, on the top sheets of cellulose paper plies.

L'invention concerne un produit à trois couches comportant un noyau d'un panneau de particules assemblé avec une couche ou une feuille de fibres vulcanisées à motif sur chaque surface. L'une des feuilles de fibres vulcanisées peut présenter un motif préimprimé décoratif. L'autre feuille de fibres vulcanisées peut aussi être décorative ou seulement une feuille simple de fibres vulcanisées. Le produit est utile pour le travail du bois et peut être traité (par exemple, teinté, poncé, laqué, etc.) comme un produit en bois naturel. Contrairement aux procédés précédents à fibres vulcanisées, ledit procédé de production des feuilles de fibres vulcanisées comporte la préimpression d'un motif, pendant un procédé de préimpression, sur les feuilles supérieures des plis de papier de cellulose.

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