Title:
NIR SPECTROSCOPIC MONITORING OF RESIN-LOADING DURING ASSEMBLY OF ENGINEERED WOOD PRODUCT
Document Type and Number:
WIPO Patent Application WO2004045816
Kind Code:
A3
Abstract:
Calibrating near infra red (NIR) spectroscopic instrumentation for quantitative measurement of resin-loading of prepared wood materials, as moving in an assembly-forming line, for subsequent pressing under heat and pressure for manufacture of engineered-composite wood product. Feedback of measured data of resin-loading, during in-line assembly operations, enables maintaining consistent resin-loading and optimizes resin usage. Calibration of NIR spectroscopic instrumentation can be carried out on equipment simulating in-line movement of pre-established reference-source test-samples; or, can be carried out during on-line movement of wood-material test samples. The developed calibration method removes absorptive effects at wavelengths for constituents other than resin, such as the moisture content of the wood-materials and of the resin, while maintaining accurate and prompt NIR spectroscopic measurements of resin-loading in a continuous assembly line.
Inventors:
MBACHU REGINALD A (US)
CONGLETON TYLER G (US)
CONGLETON TYLER G (US)
Application Number:
PCT/US2003/036337
Publication Date:
July 15, 2004
Filing Date:
November 13, 2003
Export Citation:
Assignee:
MBACHU REGINALD A (US)
CONGLETON TYLER G (US)
CONGLETON TYLER G (US)
International Classes:
B27N3/18; (IPC1-7): G01B15/00; G01N23/00; G21K7/00; H05B6/00; B29C67/00; B32B31/00; B32B21/02; B32B21/10; B32B5/16
Foreign References:
| US5619038A | 1997-04-08 | |||
| US3196072A | 1965-07-20 | |||
| US6461743B1 | 2002-10-08 | |||
| US4508772A | 1985-04-02 | |||
| US5104485A | 1992-04-14 |
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