D - Textiles – Paper – 21 – J
Patent
D - Textiles, Paper
21
J
92/33
D21J 1/04 (2006.01) B44B 5/00 (2006.01) D21F 11/00 (2006.01) D21J 1/20 (2006.01) G10K 11/16 (2006.01)
Patent
CA 1190077
APPARATUS AND METHOD FOR PRODUCING SURFACE MOLDED PANEL Abstract of the Disclosure In the production of an acoustical fiber board product having a patterned top surface, the surface is provided with a high fidelity reproduction of a molded design by a hollow rotating embossing roller having a sequence of positive and negative pressures upon the pulp forming the surface layers of the panel.
401537
Company United States Gypsum
Macrae & Co.
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