Rozwój techniki niskociśnieniowej stosowanej w konserwacji dzieł sztuki

The presented series of articles describes a genesis, construction, development and use of a low-pressure table for doubling the paintings and also its other applications in the conservation of works of art. Because the conservation of paintings involves such factors as pressure, raised temperature, moisture and canvass stretching, they have to be approached with far-going caution. A common use of heated tables, usually referred to in Poland as vacuum tables, is associated with too severe work conditions. Therefore, studies have been carried out for years to find new solutions. They have resulted in designing a low-pressure doubling table. Its construction is very simple and it allows to carry out various types of conservation work in which the above listed factors are used in a well-controlled way. This allows also to avoid doubling, restricting thus conservation activity to a permanent strengthening of the object and its protection through impregnation. The unit can also be employed in the conservation of textiles and graphics. So far, it has been modified and improved many times. W. Mitka describes a portable unit for the conservation of paintings, which may also be used in the conservation of mural paintings A. Mitka discusses a low- pressure attachment to be used with an ordinary vacuum table and the use of a perforated plate in this type of units.