Method for carrying out colourimetry on castanopsis hystrix timber

Abstract

The invention discloses a method for carrying out colourimetry on castanopsis hystrix wood, which comprises the following steps of: (1) sampling: cutting out wood discs to form colourimetry samples, and air-drying to a constant weight state; (2) preparation of colourimetry boards: carrying out longitudinal chord cutting on the colourimetry samples to form colourimetry boards with a certain specification, and respectively taking a plurality of colourimetry boards from heartwood and sapwood; (3) preprocessing: polishing the colourimetry boards to make the surfaces of the colourimetry boards smooth; (4) color measurement: measuring Hunter indexes brightness 1*, chromaticity a* and chromaticity b* of wood colors of the colourimetry boards by a colourimetry color difference meter, and taking aplurality of points of each colourimetry board to carry out multi-point testing; and (5) wood color determination: determining an average value of Hunter indexes brightness 1*, chromaticity a* and chromaticity b* of wood colors of colourimetry points in each colourimetry board as a colourimetry board wood color, and determining an average value of the Hunter indexes brightness 1*, chromaticity a*and chromaticity b* of the wood colors of the colourimetry boards as a colourimetry sample wood color. The method disclosed by the invention is simple and practical to operate and low in requirement for color sensitivity of colourimetry personnel; and the colourimetry method is easy to master, stable in colourimetry result and small in error.

Description

technical field [0001] The invention relates to the field of wood color measurement, in particular to a method for color measurement of red vertebra wood. Background technique [0002] Against the background of vigorously developing strategic timber reserve bases, precious broad-leaved timber species characterized by rich colors and beautiful textures have become priority tree species resources for the development of southern provinces / autonomous regions in my country. Hongzhui is the first batch of rare and excellent native timber tree species included in the national strategic timber reserve base. Its timber is bright and round, and is suitable for making high-end home furnishing and wooden decorations. Therefore, South China is vigorously developing red vertebra plantation forests. At present, the area of ​​pure red vertebra forests and needle vertebra mixed forests in Guangdong and Guangxi has reached 5000hm 2 . However, the color of Hongzhui wood varies greatly, rangi...

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Problems solved by technology

However, the color of Hongzhui wood varies greatly, from reddish brown to reddish brown, which increases the difficulty of selecting materials for Hongzhui high-end home furnishing and wooden decorations, and also affects the appearance and market value of Hongzhui wooden furniture and decorations.

[0003] For a long time, the visual colorimetry method has been used for the color of red vertebra wood, that is, the subjective perception of the wood color accepted by the human eye is used as the standard, but the sensitivity of human visual cells to colors is different, so the result of this colorimetric method is wrong. Larger, and easily affected by the subjective factors of the color tester, professional training on the color sensitivity of the color tester is required, and the quality of the color tester is high

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