Short
description of the techniques of the exhibits that are presented in this art
exhibition
The drawing is being painted on a limestone slab with
chalk which contains
fat. The parts to be printed lateron are being prepared, so that they reject
fat (mostly through the effect of acid). The drawing is washed off, only the
fat background remains.
Printing process:
- The stone is moistened, the fatty parts reject the water.
- The stone is being rolled in fat containing colour which sticks at the
fatty parts and is being rejected by the moist parts of the stone.
- Print paper is being put on the stone.
- Pressure is being produced in the lithographic press.
Coloured prints are possible to produce, however, one
requires a special
stone for each colour.
Procedure to the production of etching on copperplates for
the
hand-press deep-printing (copper-print).
At this procedure, the in contrast to the original-graphic
proceeds, how> copperplate or> etching, on photographic
basis is founded, becomes a positive on chrome gelatine-pigment-paper
copies. This pigmentopike becomes on a with melt asphalt-dust
overcast copperplate transfers, the subsequent according to the thickness of the
at the washing out of emerging gelatine-relief, differently is etched.