Variable nip minimum wrap calender

Details Variable nip minimum wrap calender Variable nip minimum wrap calender

D - Textiles, Paper

21

G

92/4

D21G 1/02 (2006.01) D21G 1/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 1065658

ABSTRACT OF THE DISCLOSURE A pair of calender rolls have the web to be calendered directed to wrap only about 90° in travelling on one of the rolls into the nip of the rolls and then to wrap only about 90° on the other of the rolls after leaving the nip. Pressure of the nip is variable. Additional variable nips may be provided by means of rolls located in nip relation to the first two rolls to engage the web about 90° from the nip of the first two rolls. Automatic sheet threading is provided for. Provision is made for applying liquid solution to the web in the calender.

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