Carrier is part of picture which serves to provide picture strength. If the substrate is not applied then the carrier is also the basis for imaging. The carrier of a picture is usually canvas, paper or wood and may be wall, gypsum board, glass bottles or any other nice harder material.
Traditionally, as the carrier of the icon used wooden board especially made for this purpose. In recent times, there are substitutes for wood, usually mediapan plate made by pressing sawdust and glue, but wooden board is much superior with its quality and aesthetics. Wood is prone to warp and the task of carpenters, in addition to provide a flat and a nice board, to prevent its warp or if there is a warp that should be at least possible.
How to prevent warp of wooden board
To prevent warp there are some rules for making boards:
- Board must be completely dry, naturally dried for several years or dried artificially.
- Board should be cut from the tree so that the board annual rings in the cross section extending along the thickness of board, does not use the central part of the tree.
- It is made by merging multiple parts, usually three slat.
- On the back side are placed-inserted particular holders called Serbian „kušaci“, Russian „šponke“.
- To prevent further board warp which can be caused by drying or absorption of water, due to changes in humidity, it is necessary to grease the board, immediately after it is made, to the rear and side with lacquers which will prevent the board to recieve and discharge water. From the drying-moisture front of the board protects the substrate layer.
- It is important that board has no nodes and no resin. The most commonly used wood is lime wood because it is tractable, easily, and is not subject to wormholes. After making the board is not good for it to stay for a longer period of time (more than a few months) unvarnished, back and sides, and without applied substrate, because otherwise the board will continue to receive and discharge moisture (that is extra dry) and can get to cracking and warp the board.
board cross section
how board should be cut from the tree
Last Updated on Saturday, 06 March 2010 15:13