Colored woods

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Dyewoods are wood species which one to dyeing usable dye included, such as especially the logwood (Kamp ash wood), Fisettholz (Fustik), yellow wood , redwood and sandalwood . With the exception of the fiset wood, they are supplied from non-European trees and loaded in blocks without packaging . The shredding takes place in their own establishments (Hamburg, Berlin, Leipzig etc.) on so-called. Color wood mills that deliver chips, curls, needles or powder. The comminuted goods are left to lie for several weeks in a dark, airy room with frequent wetting with water and occasional shoveling ( fermentation ) in order to develop the chromogen from the chromogen , which is not completely formed in the colored wood . These fermented woods have a livelier appearance and are more productive to dye. By boiling the crushed and fermented colored wood and evaporating the extract, the colored wood extracts are obtained, which are either syrupy (20-25 ° B. ) Or solid and in the latter case form a dark, glossy mass with shell-like breakage. The extracts prepared in a vacuum dissolve completely in water, those that evaporate in the air leave behind more or less insoluble residue.

literature

  • Gerhard Boehm: Commercial Timbers from Latin America. 1st edition, Kessel Verlag, Remagen-Oberwinter 2011, ISBN 978-3-941300-40-8 .

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