Department of Wood Science and Technology (FFWT) - list of publications


The following list contains all information available to the publication.

BAAR, J. -- PASCHOVÁ, Z. -- ČERMÁK, P. -- WIMMER, R. Color changes of various wood species in response to moisture. Wood and fiber science. 2019. v. 51, no. 2, p. 119--131. ISSN 0735-6161. URL: https://wfs.swst.org/index.php/wfs/article/view/2721

Original name:
Color changes of various wood species in response to moisture
Czech name:
Written by (author):
Ing. Jan Baar, Ph.D.
Mgr. Zuzana Paschová, Ph.D.
Ing. Petr Čermák, Ph.D.
prof. Dr. Rupert Wimmer
Department:
Department of Wood Science and Technology
Kind of publication:
article in a professional periodical
Periodical:
Wood and fiber science
Nature of article:
paper
Volume no. (year):
51
Periodical number within the volume:
2
Year of publication: 2019
Starting page: 119
Up to page:
131
Number of pages: 13
Sub-specification:
článek je obsažen v databázi Web of Science
UT code by Web of Science:
EID code by Scopus:
Form of publication:
printed version
Original language: English
Description in original language:
Color including texture and gloss is one of the most important esthetical attributes of wood. For any porous materials in contact with water, the phenomenon of surface darkening arises from a change in the refractive index, as water enters air-filled pores. For the first time, this research investigated to what extent MC differences affect the surface color, below fiber saturation and after the pores are filled with water, with respect to extractive contents. Samples from 13 wood species were exposed to various climates, and as soon as EMC was reached, the color was determined. Color changes were also recorded after water submersion and also after vacuum impregnation in water. Chromaticity parameters a* and b* widely increased, along with higher moisture contents. Lightness changesweremostly stable at lower moisture contents.An exceptionwas demonstrated by the heartwood species black locust, plum, walnut, and oak, which showed a brightening effect at lowermoisture contents, followed by the darkening phase. The overall darkening of wood at high RH is connected to capillary condensation. Liquid water present in the cell lumen most caused darkening and an intensification of hue (increase in a* and b*). Darkening was even more expressed after vacuum impregnation with water. In conclusion, with only limited fluctuations in moisture contents below fiber saturation, the expected color changes are minor to neglectabl.
Description in English:
Description in Czech:
Year of submission:
2019
Year of transmission:
RIV identification number:
URL: https://wfs.swst.org/index.php/wfs/article/view/2721
 
Entry made by:
Markéta Hejčová, DiS.
Last change:
04/23/2019 08:19 (Markéta Hejčová, DiS.)

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Source specification:

Wood and fiber science. Monona: ISSN 0735-6161.

Original name:
Wood and fiber science
Kind of publication:
Periodikum (tištěný text)
ISSN:
0735-6161
Country of publisher:
United States of America
Place of publishing: Monona
Publisher:
Society of Wood Science and Technology
URL:
http://www.swst.org/publications/wfs/online.html
Reviewed magazine:
no
Original language: English
Key words:
czech: řezivo, vlákniny, dřevo
Annual volumes:
Volume
Annual volume
Location
41
2009
Informační centrum-čítárna časopisů
42
2010
Informační centrum-čítárna časopisů
43
2011
Informační centrum-čítárna časopisů
44
2012Informační centrum-čítárna časopisů

Sublibraries
Name
Number
InstituteLibrarian
Phone
E-mail
Informační centrum-čítárna časopisů
944/4Lenka Čadílková+420 545 135 039

Person responsible: Helena Antonínová
Last change:
06/14/2017 14:25 (Šárka Novotná)

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