Papermaking covers pulping (chemical, mechanical, recycled), sheet forming (Fourdrinier, cylinder, twin-wire), coating (pigment, film), calendering (multi-roll, soft), winding and slitting. Voith Paper (DE, world #1), Valmet (FI, ex Metso Paper) and Andritz (AT) form the papermaking-machinery triumvirate.
Papermaking
Papermaking
Papermaking covers pulping, sheet forming, coating, calendering and reeling. Voith Paper (DE), Valmet (FI) and Andrit...
Papermaking covers pulping, sheet forming, coating, calendering and reeling. Voith Paper (DE), Valmet (FI) and Andritz (AT) dominate papermaking machinery globally.
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FAQ
Q Chemical vs mechanical pulp?
A
Chemical (kraft / sulfite): lignin removed — high fiber strength, high brightness, expensive — culture and packaging papers. Mechanical (groundwood / CTMP): lignin retained — cheap, high yield (90%+), low strength — newsprint.
Q Machine speed?
A
High-speed culture paper 1500-2200 m/min; board 600-1200 m/min; tissue 2000-2500 m/min. Above 2000 m/min is the core technology lead held by Voith and Valmet.
Q Energy and emissions?
A
White-water recycling (90%+), heat-pump recovery (evaporator secondary vapor), biomass instead of coal boilers, ECF/TCF chlorine-free bleaching. Voith and Valmet offer green-upgrade packages.