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    • 4. 发明授权
    • Variable nip minimum wrap calender
    • 可变压区最小包装压光机
    • US4080890A
    • 1978-03-28
    • US731434
    • 1976-10-12
    • George L. Dreher
    • George L. Dreher
    • D21G1/00D21G9/00B30B3/04
    • D21G1/00D21G9/0063
    • A pair of calender rolls have the web to be calendered directed to wrap only about 90.degree. in travelling on one of the rolls into the nip of the rolls and then to wrap only about 90.degree. 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.degree. 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.
    • 一对压延辊具有被压延的纤维网,以便在其中一个辊上行进到辊的辊隙中仅包裹约90度,然后在离开辊隙之后在另一个辊上仅包裹约90度。 压区的压力是可变的。 可以通过位于与前两个辊的压合关系中的辊来提供附加的可变卷边,以将卷材从前两个辊的辊隙接合约90度。 提供自动纸张穿线。 规定在压光机中将液体溶液施加到网上。