Počet záznamov: 1
The effect of steaming on the color change of false heartwood beech
SYS 0125979 LBL 00000naa^^22^^^^^^^^450 005 20250108100015.6 017 70
$a 10.17423/afx.2024.66.2.03 $2 DOI 100 $a 20170407d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a The effect of steaming on the color change of false heartwood beech $f Ladislav Dzurenda, Michal Dudiak 215 $c Graf., obr., tab. 330 $a The work presents the results of the color change of false heartwood of beech wood during the steaming process in a pressure autoclave in individual modes in the temperature interval t = 90 to 120 °C. The color of the wood of the false heartwood, depending on the steaming conditions, changes in opposite ways, while at temperatures up to t ≈ 105 °C it becomes pale, and at temperatures above t ≈ 115 °C it becomes darker. Based on the results of the research on the color change of the false heartwood wood in the steaming process, 3 steaming modes were proposed to achieve a targeted change in the color of the false heartwood beech. By steaming the wood with saturated moist air tI = 90 ± 2.5 °C for τ = 8 h, the color of the wood lightens, which is numerically expressed in the color space CIE L*a*b*: L* = 69.2 ± 2.9, a* = 12.7 ± 1.6 and b* = 19.7 ± 1.4. Steam mode II with saturated water steam tII = 115 ± 2.5 °C during τ = 16 h, slight darkening of the wood color of the false heartwood reaches the following values: L* = 56.0 ± 2.4, a* = 12.4 ± 1.4 and b* = 19.2 ± 1.5. The dark brown color described in the color space CIE L*a*b* by the values: L* = 50.0 ± 2.1, a* = 12.4 ± 1.3 and b* = 18.5 ± 1.4 is achieved by the vaporization mode III. at the temperature of saturated water steam tIII = 120 ± 2.5 °C during τ = 24 h. 463 -1
$1 001 sldk_un_cat*0125930 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 66, no. 2 (2024), s. 23-33 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2024 541 1-
$a Vplyv parenia na zmenu farby nepravého jadra bukového dreva 610 $9 sldk_un_auth*h001468 $a bukové drevo $X beech wood 610 $9 sldk_un_auth*h002916 $a nepravé jadro $X false heart 610 $9 sldk_un_auth*h013461 $a farba dreva $X colour of wood 610 $9 sldk_un_auth*h002809 $a parenie dreva $X steaming of wood 610 $9 sldk_un_auth*0014981 $a farebné diferencie $X color differences 610 $9 sldk_un_auth*0062759 $a disperzia farieb $X color dispersion 675 $a 674.031.632.2 $v 2. stred. $z slo 675 $a 630*81 $v 1. stred. $z slo 675 $a 630*811.52 $v 1. stred. $z slo 675 $a 630*846 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*p0016139 $a Dzurenda $b Ladislav $f 1955- $p TUZDFOD $4 070 $T Katedra obrábania dreva 701 -1
$3 sldk_un_auth*0042943 $a Dudiak $b Michal $f 1993- $p TUZDFOD $4 070 $T Katedra obrábania dreva 801 -0
$a SK $b ZV001 $c 20170407 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/03-02-24_1.pdf
Počet záznamov: 1