Sunday, November 6, 1955

THE MICHIGAN DAILY

Pooe Seven

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AFTER THE DESIGN HAS BEEN DRAWN ON TO THE SURFACE
OF THE STONE, IT WILL BE ETCHED WITH ACID.

A STONE OF ROUGHER COMPOSITION IS UIFD TO GRIND DOWN AND SMOOTII THE
SURFACE OF THE BAVARIAN LIMESTONE WHICh THE PRINTMAKER WILL USE. ,

Litography in the Classroom
By LOUISE TYOR
Daily Associate Editor
THE forerunner of most modern printig methods, lithography is
now almost entirely within the realm of the artist.
Prof. Emil Weddige of the College of Architecture and Design
takes advantage of the interesting process and the fine results which
may be achieved from correct technique. His printmaking class
devotes a large portion of its time to the study of the lithograph
process.
Large slabs of Bavarian limestone, weighing up to 80 pounds
apiece, are used. First, the stone must be ground and filed to smooth
the surface and edges, facilitating etching and preventing ink from
becoming embedded in the rib of the slab.
Designs are drawn directly on to the stone with either a greasy
crayon or paint. The pattern is then etched with diluted acid and .
gun water.
After an application of ink, a mixture of powdered resin and.,v
gum arabic is applied to the stone. This process, knowan s the roll-
up, seals the surface and prepares it for printing.
After setting, ink is again applied. Paper and a press board
are placed over the stone, which has been centered on the press, and,
with the application of pressure, a print is made.
JUST THE RIGHT AMOUNT OF GUM AND POWDER MUST BE
DAILY' PIOTOS BY CHUCK RKELSEYATTAINED TO ENSURE A GOOD PRINT.

AN INK-COVERED ROLLER IS
USED TO APPLY COLOR
TO THE STONE.

FINAL STEPS: CENTEKING THE PAPER,.

Ilk
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"YOU NEVER REALLY THINK ALL THE WORK IS WORTH IT UNTIL YOU SEE THE FINISHED
PRINT"-Grinding, etching and inking processes have resulted in a dramatic example of lith-
ography.

... AND ROLLING OUT A PRINT