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Official Journal of the Japan Wood Research Society

Water removal of wet veneer by roller pressing


High moisture content, flat sawn Japanese cedar (Cryptomeria japonica D. Don) veneer was compressed using a roller press to mechanically remove water. The amount of water removed depended on the amount of compression applied. At 60% compression, 400 kg/m3 of water was removed. The process was not dependent on the size of the wood, the degree of compression, or the feed speed of the specimen. After compression, the remaining water contents were evenly distributed throughout the veneer regardless of the length of the specimen. The specimens did not completely recover to original thickness. High compression ratio and low temperature intensified the reduction of thickness. The bending strength after compression decreased in an inversely proportional manner with the thickness of the specimen and the compression degree.

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Correspondence to Koji Adachi.

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Part of this study was presented at the 50th Annual Meeting of the Japan Wood Research Society, Kyoto, April 2000

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Adachi, K., Inoue, M., Kanayama, K. et al. Water removal of wet veneer by roller pressing. J Wood Sci 50, 479–483 (2004).

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Key words

  • Roller press
  • Compression
  • Water removal
  • Moisture content
  • Free water
  • Energy savings