Experimental determination of the effect of temperature and humidity on the development of colour in Pinus radiata

Brazilian Journal of Chemical Engineering

M. Mccurdy¹  S. Pang¹  R. Keey¹ 

[1] ,University of Canterbury Department of Chemical and Process Engineering Wood Technology Research CenterChristchurch,New Zealand

关键词: Appearance grade;    Accelerated conventional temperature;    High temperature;    Kiln drying;    Low temperature;    Color space;   

DOI  :  10.1590/S0104-66322005000200003

来源: SciELO

【 摘 要 】

Experiments were undertaken to determine the effects of drying conditions (temperature and humidity) on the development of kiln brown stain in radiata pine during drying. Eight schedules were tested with temperatures ranging from 50°C to 120°C and relative humidity from 14% to 67%. The variables measured were moisture content, color expressed using the CIELab color space, and nitrogen content. The experiments have shown that the kiln brown stain is influenced by drying temperature and drying time. The recommendation is therefore that low-temperature and low-humidity schedules be developed for controlling color development.

【 授权许可】

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