151
7
paper sheets in Germany are specified in
“DIN” sizes (German industrial standards).
In Europe, the formats are regulated by EN
ISO 216; in other countries, e.g. the USA,
other formats are used.
a smooth and stable surface and is ideal for
printing products. Finishing can also include
laminating with plastic or metal foils.
5 During finishing, the roll paper is cut to
standardized sizes in cutting machines. The
. Fig. 7.9 Paper machine - The Perlen PM 7 (Switzerland) supplied by Voith produces high-quality newsprint. At
a production speed of up to 1900 m/min, the facility produces up to 360,000 metric tons of paper per year (© Voith
GmbH & Co. KGaA)
7.2 · Manufacture of Paper
Sieve
Reel
Drying cylinder
Bottom
felt
Felt-drying cylinder
Press
Guide rolls
Guide rolls
Forming mash
Suction
box
Couch roll
Head
box
Table
rolls
Wet felt
Dryer section
Wet press section
Smoothing
unit
. Fig. 7.8 Setup of a continuously operating paper machine (© Die Zuckerschnute, Wikipedia)