US 11,938,663 B2
Method for manufacturing a molded part
Michael Gruenthaner, Creussen (DE)
Assigned to NOVEM CAR INTERIOR DESIGN GMBH, Vorbach (DE)
Filed by NOVEM CAR INTERIOR DESIGN GMBH, Vorbach (DE)
Filed on Nov. 5, 2019, as Appl. No. 16/675,111.
Claims priority of application No. 10 2018 127 648.6 (DE), filed on Nov. 6, 2018.
Prior Publication US 2020/0139600 A1, May 7, 2020
Int. Cl. B29C 45/14 (2006.01); B29C 45/00 (2006.01); B32B 5/02 (2006.01); B32B 21/08 (2006.01); B32B 21/10 (2006.01); B32B 21/14 (2006.01); B29K 711/14 (2006.01)
CPC B29C 45/14811 (2013.01) [B29C 45/0053 (2013.01); B32B 5/022 (2013.01); B32B 21/08 (2013.01); B32B 21/10 (2013.01); B32B 21/14 (2013.01); B29C 2045/0079 (2013.01); B29K 2711/14 (2013.01); B32B 2274/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for manufacturing a molded part, wherein the molded part comprises a wood veneer designed as a decorative layer and a backing, the wood veneer having a front side provided as the visible side and a rear side opposite from the front side, the method comprising:
providing a wood veneer that is intended for forming the decorative layer;
applying lacquer to the front side of the wood veneer, the lacquer being applied only to some sections of the front side of the wood veneer according to an intended pattern or symbol, wherein the front side of the wood veneer has sections in which lacquer is applied and sections in which no lacquer is applied;
back-injecting the wood veneer on the rear side of the wood veneer with a backing material for forming the backing; and
pickling the wood veneer on all sections of the front side of the wood veneer, wherein,
in the areas of the lacquer application, the front side of the wood veneer is impregnated with the lacquer, and is unaffected by the pickling; and
the pickling of the wood veneer in the sections in which no lacquer is applied results in partial swelling of the wood veneer, so that a three-dimensional relief structure corresponding to the symbol or pattern is formed on the front side of the wood veneer.