supercalendering


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Related to supercalendering: calendared

supercalendering

[¦sü·pər′kal·ən·driŋ]
(engineering)
A calendering process that uses both steam and high pressure to give calendered material, for example, paper, a high-density finish.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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It may be practical to do so using a metered size press and on-machine supercalendering, but why do so?
Coated paper and board: grades in transition
Haindl Papier PM 3 was the first LWC machine to integrate both on-machine coating and true multi-nip supercalendering in the machine operation.
At typical coat weights below 10 g/[m.sup.2]/side, film-coating can provide similar gloss, but somewhat higher PPS roughness than offset LWC produced with blade coating and off-machine supercalendering. There is a substantial advantage in capital and operating costs for film-coat presses compared to blade coaters, so for now, film-coat presses are the preferred technology.
The modern paper machine, part 2: coated and fine paper
New on-machine multi-nip calenders may eliminate the need for off machine supercalendering and improve product quality.
TAPPI Coating Conference a technology update: new technology is making coated papermaking faster and more efficient, and the end product lighter and stronger
"In order to develop a good printing surface on a wood-containing sheet with high bulk, hot soft nip calendering is probably preferred to supercalendering, and easy-finishing coating formulations as well as the underline coating ingredients should be in demand," he said.
Coated papers: it's a brand new ballgame
Many machines in North America have undertaken significant grade changes over the past six years to SC or LWC grades and have chosen online calendering over traditional off-line supercalendering. The most significant installations scheduled for the United States will be Madison Paper's facility in Alsip, Illinois, and Bowater in Catawba, South Carolina, both expected to be completed in 2002.--Mike Molter, TAPPI Editorial Board, mmolter@tappi.org, and Mark Sorenson.
Online calendering for SC and LWC grades
Mat-On-Line and Gloss-On-Line (Calenders) provides superior finish and economy of operation compared to conventional machine calendering and supercalendering.
Eduard Kusters Maschinenfabrik GmbH & Co. KG

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