Claims
- 1. An improved laminated board structure which comprises:
- (a) a bonded particle core stock having a ball hardness of 800 or more,
- (b) a natural wood veneer covering over the core stock, said veneer covering having a ball hardness less than the core stock and being several hundred units less than the ball hardness of the core stock,
- (c) a bonded wood fiber surface sheet covering said wood veneer, and
- (d) said laminated structure having surface embossing which is over twice the thickness of said wood fiber surface sheet.
- 2. An improved laminated board structure as set forth in claim 1 wherein said core stock is a 50-pound homogenous particle board and said veneer covering is poplar.
- 3. An improved laminated board structure as set forth in claim 2 wherein said veneer covering is two or more layers of separate veneering.
- 4. The method of manufacturing an improved embossed board, which method comrprises:
- (a) covering a bonded particle core stock having a ball hardness of 800 or more with a natural wood veneer having a ball hardness of several hundred units less than the hardness of the core stock,
- (b) covering said veneer with a bonded wood fiber sheet,
- (c) laminating said core stock, veneer, and wood fiber sheet together, and
- (d) embossing with heat and pressure said above laminated three-layer structure to deeply emboss said structure over twice the thickness of said wood fiber sheet.
- 5. The method of claim 4 wherein said core stock has a ball hardness of about 3,000 and said veneer is a soft wood fiber having a ball hardness of about 500 to 2,100.
- 6. The method of claim 5 wherein said embossing pressure is in the range of 800 to 2,500 psi and said temperature range for embossing is from 370.degree. to 500.degree..
- 7. The method of claim 6 wherein the fiber sheet is about 1/32 inches in thickness and the embossing is at least twice the thickness of the fiber sheet.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 741,779, filed Nov. 15, 1976, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2666726 |
King et al. |
Jan 1954 |
|
3846219 |
Kunz |
Nov 1974 |
|
3880687 |
Elmendorf et al. |
Apr 1975 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
741779 |
Nov 1976 |
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