Method and apparatus for calendering paper webs

Details Method and apparatus for calendering paper webs Method and apparatus for calendering paper webs

B - Operations, Transporting

30

B

92/4

B30B 3/04 (2006.01) D21G 1/00 (2006.01)

Patent

CA 1145985

ABSTRACT OF THE DISCLOSURE Method and apparatus for calendering paper webs or the like wherein a plurality of hard calendering rolls are situated to constituted a roll stack and wherein a plurality of soft calender rolls are situated in nip defining relationship with respective ones of the hard rolls whereby a plurality of corresponding hard and soft or supercalender nips are defined. The apparatus is adapted to be directly associated with a paper machine and force apparatus are provided in conjunction with the apparatus for supporting the hard and soft calender rolls so that the hard nips are open and the supercalendering nips are closed during threading of the apparatus while the hard nips are opened and super- calendering nips are closed after the web is threaded in order to perform continuous supercalendering of the paper web.

362205

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