Presses – Methods – With heating or cooling
Patent
1989-05-03
1991-07-23
Hornsby, Harvey C.
Presses
Methods
With heating or cooling
100 35, 100 93RP, 100161, 118 60, 118 69, 162206, 162361, 427361, B30B 1300, B30B 304, D21G 100
Patent
active
050333739
ABSTRACT:
A process for producing a smooth and glossy surface on a paper web and a calender arrangement for carrying out the process are disclosed. The calender arrangement comprises two sets of rolls through which the paper web is conducted in succession. Each set of rolls comprises a highly heated hard roll and a soft roll. A cooling device arranged upstream of at least one of the nips formed between the roll sets restricts the amount of heat transfer to the inner layers of the paper web and the attendant, undesirable partial plasticization of the inner layers of the web.
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"Temperature-gradient Calendering", R. H. Crotogino Tappi Journal, Oct. 1982, vol. 65, No. 10, 97-101.
Brendel Bernhard
Kubik Klaus
Eduard Kusters Maschinenfabrik GmbH & Co. KG
Gerrity Stephen F.
Hornsby Harvey C.
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