Method in calendering of a paper web and a calendar that makes use of
the method
    1.
    发明授权
    Method in calendering of a paper web and a calendar that makes use of the method 失效
    使用该方法的纸幅和日历的压延方法

    公开(公告)号:US5483873A

    公开(公告)日:1996-01-16

    申请号:US205958

    申请日:1994-03-02

    IPC分类号: D21G1/00 D21G1/02

    CPC分类号: D21G1/0093

    摘要: A paper web is passed through a calendering nip that is formed between a roll which has been provided with a soft face and a heatable hard roll. The heatable roll is heated so as to plasticize the surface layer of the paper web that is placed at the side of the heatable roll, preferably so that the temperature of the surface layer in the calendering nip exceeds the glass-transition temperatures of the polymers contained in the paper. Before entering into the calendering nip, the paper web is moistened, so as to lower the glass-transition temperatures of the polymers contained in the paper, and pre-heated. The pre-heating of the paper web is carried out by bringing the paper web into contact with the heatable roll before the web enters the calendering nip and by, before the calendering nip, feeding steam or water onto the face of the paper web that is placed at the side of the heatable roll so as to improve the transfer of heat from the hot roll to the paper web.

    摘要翻译: 纸幅通过形成在已经设置有软面的辊和可加热硬质辊之间的压延辊隙。 可加热辊被加热以使放置在可加热辊一侧的纸幅的表面层发生塑化,优选地使得压延辊隙中的表面层的温度超过包含的聚合物的玻璃化转变温度 在论文中。 在进入压延辊隙之前,纸幅被润湿,以降低包含在纸中的聚合物的玻璃化转变温度并预热。 纸幅的预热通过在纸幅进入压延辊隙之前使纸幅与可加热辊接触来进行,并且在压延辊隙之前,将蒸汽或水输送到纸幅的表面上 放置在可加热辊的侧面,以便改善从热辊到纸幅的热传递。

    Multiple-nip calender and calendering arrangement
    3.
    发明授权
    Multiple-nip calender and calendering arrangement 失效
    多压区压延和压延布置

    公开(公告)号:US06827009B2

    公开(公告)日:2004-12-07

    申请号:US10239491

    申请日:2002-12-27

    IPC分类号: B30B1300

    CPC分类号: D21G1/006

    摘要: A supercalender for calendering a paper web and a calendering arrangement for producing matte-quality paper web has a multiple-nip calender in which at least one of the calendering nips of the multiple-nip calender is an extended nip (N9) formed between a polymer roll (18) and either a shoe roll (30) or a calendering belt.

    摘要翻译: 用于压延纸幅的超级压光机和用于生产无光泽纸幅的压延装置具有多压区压光机,其中多压区压光机的至少一个压光辊隙是在聚合物之间形成的延伸压区(N9) 辊(18)和鞋卷(30)或压延带。

    Method and arrangement for calendering paper and board before and after coating
    4.
    发明授权
    Method and arrangement for calendering paper and board before and after coating 失效
    涂布前后压延纸和纸板的方法和布置

    公开(公告)号:US06811654B1

    公开(公告)日:2004-11-02

    申请号:US09720550

    申请日:2001-01-03

    IPC分类号: D21F1100

    CPC分类号: D21H23/30 D21G9/009 D21H25/14

    摘要: A method and apparatus for calendering paper or board in the manufacture of coated grades of paper or board. At least one of the surfaces of an uncoated base material web is calendered, at least one layer of coating mix being applied onto said surface, and at least the coated surface of the base web is calendered again. The uncoated surface of the base web is calendered by means of a shoe calender having a nip length of at least 50 mm, and the coated surface of the base web is calendered by means of a calender having a nip length of 50 mm at the most.

    摘要翻译: 用于在制造涂层纸张或纸板时压纸或纸板的方法和设备。 将未涂覆的基材纤维网的至少一个表面压延,将至少一层涂料混合物施加到所述表面上,并且再次压延基底纤维网的至少涂覆表面。 通过具有至少50mm的辊隙长度的鞋砑光机将基底纤维网的未涂覆表面压延,并且通过砑光机压延基底纤维网的涂覆表面,该压光机最多具有50mm的辊隙长度 。

    Method of pre-calendering a board web
    5.
    发明申请
    Method of pre-calendering a board web 失效
    预压光板网的方法

    公开(公告)号:US20050077651A1

    公开(公告)日:2005-04-14

    申请号:US10497344

    申请日:2002-11-15

    IPC分类号: D21G1/00 D21G7/00 B29C43/24

    摘要: A method for pre-calendering a board web is provided and comprises passing the board web in a pre-calendering process through at least one hard nip, formed by a metal roll and a counter roll, and through at least one long nip, formed by a thermo roll and a long-nip roll or a long-nip belt assembly. The surface of the board web is moistened with water prior to the board web passing through the at least one hard nip.

    摘要翻译: 提供了一种用于预压光板材的方法,包括通过由金属辊和反向辊形成的至少一个硬压区,以及通过至少一个长压区,在预压光过程中使板纸通过由 热辊和长压辊辊或长压区带组件。 在纸板通过至少一个硬压区之前,纸板的表面被水润湿。

    Method for calendering a board web
    7.
    发明授权
    Method for calendering a board web 失效
    砑光板网的方法

    公开(公告)号:US06869505B2

    公开(公告)日:2005-03-22

    申请号:US10257885

    申请日:2001-04-17

    IPC分类号: D21G1/00 D21G1/02 D21F11/00

    CPC分类号: D21G1/006 D21G1/0093

    摘要: A long nip (N) shoe calender formed of a shoe roll (10) and a thermo roll (20) is used in calendering, with a nip dwell time which is over 10 ms, advantageously over 20 ms. The nip pressure is below 3 MPa, advantageously below 1 MPa, and a surface temperature of the thermo roll (20) is over 200° C., advantageously over 250° C. The board web (W) surface to be pressed against the thermo roll (20) is moisturized before the nip.

    摘要翻译: 使用由滑轮(10)和热辊(20)形成的长压区(N)滑动砑光机,压延时间超过10ms,优选超过20ms。 辊隙压力低于3MPa,有利地低于1MPa,并且热辊(20)的表面温度超过200℃,有利地超过250℃。板材(W)表面被压在热 辊(20)在辊隙之前保湿。

    Method of pre-calendering a board web
    8.
    发明授权
    Method of pre-calendering a board web 失效
    预压光板网的方法

    公开(公告)号:US07326319B2

    公开(公告)日:2008-02-05

    申请号:US10497344

    申请日:2002-11-15

    IPC分类号: D21G1/00 B29C43/24

    摘要: A method for pre-calendering a board web is provided and comprises passing the board web in a pre-calendering process through at least one hard nip, formed by a metal roll and a counter roll, and through at least one long nip, formed by a thermo roll and a long-nip roll or a long-nip belt assembly. The surface of the board web is moistened with water prior to the board web passing through the at least one hard nip.

    摘要翻译: 提供了一种用于预压光板材的方法,包括通过由金属辊和反向辊形成的至少一个硬压区,以及通过至少一个长压区,在预压光过程中使板纸通过由 热辊和长压辊辊或长压区带组件。 在纸板通过至少一个硬压区之前,纸板网的表面被水润湿。

    Method and apparatus in moistening of a web
    9.
    发明授权
    Method and apparatus in moistening of a web 失效
    网状物润湿的方法和装置

    公开(公告)号:US06440271B1

    公开(公告)日:2002-08-27

    申请号:US09743558

    申请日:2001-01-09

    IPC分类号: D21F700

    摘要: In the method in moistening of a web, water is applied with a wetting device (2) in a predetermined point on the surface of a paper web (W) or the like passing by the point, and the web is thereafter passed to a calender (C). The liquid is applied at such an early stage that before the surface treatment, the fibres exposed to wetting in the paper web (W) or the like have the time to absorb it at least 80% of the amount of liquid they are capable of absorbing. The distance travelled by the web between the drying section and the calender is increased with rolls (1) which guide the web (W) along a winding path.

    摘要翻译: 在网状物润湿的方法中,在通过该点的纸幅(W)等的表面上的预定点处,用润湿装置(2)施加水,然后将纸幅通过压光机 (C)。 在表面处理之前的这种早期阶段施加液体,在纸幅(W)等中暴露于湿润的纤维有时间吸收至少80%的能够吸收的液体量 。 通过沿着卷绕路径引导幅材(W)的辊(1),由干燥部分和砑光机之间的幅材行进的距离增加。

    Method and apparatus for film coating a moving paper or board web supported by a belt to form a coating application zone with adjustable length
    10.
    发明授权
    Method and apparatus for film coating a moving paper or board web supported by a belt to form a coating application zone with adjustable length 失效
    用于薄膜涂覆由带支撑的移动的纸或纸幅的方法和装置,以形成具有可调节长度的涂布应用区

    公开(公告)号:US06399160B1

    公开(公告)日:2002-06-04

    申请号:US09091199

    申请日:1998-07-06

    IPC分类号: B05D128

    CPC分类号: D21H23/56 D21H23/70 D21H25/08

    摘要: A method and apparatus for coating a paper or board web, wherein the web to be coated is brought to a film transfer coater and taken to a nip between the film transfer roll of the coater and its backing roll, and coating mix is applied onto the surface of the film transfer roll. The web is taken through the nip between the rolls and the rolls are turned, whereby the coating mix applied onto the applicator roll is at least partly transferred onto the surface of the web. The web is supported through the nip by means of a belt traveling at the same speed as the web, the belt having been arranged to travel on the backing roll. The web is taken onto the surface of the belt prior to the nip and separated from the belt after the nip, and it is pressed against the film transfer roll by means of the belt. The length of the path where the web and the film transfer roll are in contact with each other is controlled by varying the position of the web and the belt.

    摘要翻译: 一种用于涂布纸或纸幅的方法和装置,其中待涂布的纸幅被带到膜转移涂布机并且被带到涂布机的膜转移辊与其背衬辊之间的辊隙中,并且将涂布混合物施加到 转印辊的表面。 卷材通过辊之间的辊隙被卷取,并且辊被转动,由此施加到涂布辊上的涂料混合物至少部分地转移到卷筒纸的表面上。 纸幅通过以与纸幅相同的速度行进的带通过辊隙支撑,带被布置成在背衬辊上行进。 纸幅在辊隙之前被带到带的表面上,并且在辊隙之后与带分离,并且通过带被压靠在膜转移辊上。 通过改变幅材和带的位置来控制幅材和胶片转印辊彼此接触的路径的长度。