caa a22 4500 463247736 CHVBK 20180405153331.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10086-006-0878-0 doi (NATIONALLICENCE)springer-10.1007/s10086-006-0878-0 Passive impregnation of liquid in impermeable lumber incised by laser [Elektronische Daten] [Md. Islam, Keisuke Ando, Hidefumi Yamauchi, Yoshinori Kobayashi, Nobuaki Hattori] Square lumber specimens of laser-incised Douglas fir (Pseudotsuga menziesii Franco) were treated with steam before dipping. Two types of steam (saturated steam and superheated steam), three steam-injection times (5, 10, and 20 min), four different time intervals (moving time) between steam treatment and dipping (immediate, 3, 10, and 30 min), and four different dipping times (0.5, 1, 3, and 12 h) were used in the study. The maximum absorption was 480 kg/m3 when saturated steam was injected for 20 min and the specimen was immediately dipped into liquid for 12 h. Samples treated with this condition not only absorbed the maximum amount of liquid but also penetrated over 83.4% and 87.3% of the total area along and across the grain, respectively. The optimum conditions were then applied to laser-incised sugi (Cryptomeria japonica D. Don) and Japanese larch (Larix leptolepis Gordon) where the absorption of liquid was 415 and 187 kg/m3, respectively. It was shown that initial moisture content below the fiber saturation point was good for passive impregnation. The absorption of liquid and its distribution in wood indicates that it can be a good preservative treatment method for impermeable woods. The Japan Wood Research Society, 2007 Laser incising nationallicence Passive impregnation nationallicence Steam injection nationallicence Wood preservation nationallicence Islam Md Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut Ando Keisuke Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut Yamauchi Hidefumi Institute of Wood Technology, Akita Prefectural University, 016-0876, Noshiro, Japan aut Kobayashi Yoshinori Institute of Wood Technology, Akita Prefectural University, 016-0876, Noshiro, Japan aut Hattori Nobuaki Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut Journal of Wood Science Springer-Verlag 53/5(2007-10-01), 436-441 1435-0211 53:5<436 2007 53 10086 https://doi.org/10.1007/s10086-006-0878-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10086-006-0878-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Islam Md Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut NATIONALLICENCE 700 1- Ando Keisuke Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut NATIONALLICENCE 700 1- Yamauchi Hidefumi Institute of Wood Technology, Akita Prefectural University, 016-0876, Noshiro, Japan aut NATIONALLICENCE 700 1- Kobayashi Yoshinori Institute of Wood Technology, Akita Prefectural University, 016-0876, Noshiro, Japan aut NATIONALLICENCE 700 1- Hattori Nobuaki Graduate School, Tokyo University of Agriculture and Technology, 183-8509, 3-5-8 Saiwai-cho Fuchu, Japan aut NATIONALLICENCE 773 0- Journal of Wood Science Springer-Verlag 53/5(2007-10-01), 436-441 1435-0211 53:5<436 2007 53 10086 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer