公开(公告)号：US4858553A

公开(公告)日：1989-08-22

申请号：US077250

申请日：1987-07-24

Applicant: Sivert Westergard ,  Pekka Koivukunnas

Inventor： Sivert Westergard ,  Pekka Koivukunnas

IPC: B05C5/02 ,  B05C11/04 ,  B05C11/10

CPC classification number: D21H23/40 ,  B05C11/041 ,  D21H5/0015

Abstract: A short-dwell coater comprises of a backing roll (1) used for guiding a paper web (1), with an upper lip (28) and a lower lip (28) forming a nozzle apparatus. This nozzle apparatus can apply the coating mix on the paper web while the web is backed by the surface of the backing roll. A doctoring member with which the excess mix applied with the nozzle apparatus can be doctored is also provided as well as a mounting fixture, to which the doctoring member is mounted, and a support structure, with which the fixture is supported. In the short-dwell further comprises an actuator, to which the nozzle apparatus is attached so that the apparatus is movable in relation to the doctoring member in order to adjust the dwell length between the doctoring member and the nozzle apparatus.

Abstract translation: 短暂涂布机包括用于引导纸幅（1）的背衬辊（1），上唇部（28）和形成喷嘴装置的下唇部（28）。 该喷嘴装置可以在纸幅由背衬辊的表面支撑的同时将涂布混合物施加在纸幅上。 也可以设置与喷嘴装置一起施加过量混合物的刮刀部件，以及安装有刮刀部件的安装夹具以及固定装置支撑的支撑结构。 在短暂停留中还包括致动器，喷嘴装置附接到致动器，使得该装置相对于刮刀部件可移动，以便调节刮刀部件和喷嘴装置之间的停留长度。

公开(公告)号：US4945855A

公开(公告)日：1990-08-07

申请号：US261500

申请日：1988-10-24

Applicant: Dan Eklund ,  Sivert Westergard

Inventor： Dan Eklund ,  Sivert Westergard

IPC: B05C5/02 ,  B05C1/08 ,  B05C3/18 ,  B05C11/04 ,  B41F31/06 ,  D21H23/40

CPC classification number: D21H23/40 ,  B05C11/04 ,  D21H5/0015

Abstract: A coater for coating a running paper or carboard web comprises a coating chamber having one side open against the web and means for filling the coating chamber with pressurized coating substance. The coating chamber is limited in the longitudinal direction of the web by a web entrance wall, and opposite thereof, a back wall in the form of a doctor member for forming a coating layer on the web. The distance between the walls is so short that, at normal web running speed, the web moves from the web entrance wall to the back wall in a time of at the most 0.3 s, preferably at the most 0.03 s. Coating substance is supplied by means of positive pressure to the coating chamber at a position close to the web entrance wall. Close to the web entrance wall the flow of coating substance in the coating chamber is divided into two branches, of which a first branch follows the web in its running direction towards the back wall and a second branch, which is considerably greater than the first branch, flows out from the coating chamber through a slot between the web entrance wall and the web.

公开(公告)号：US4791879A

公开(公告)日：1988-12-20

申请号：US917256

申请日：1986-10-08

Applicant: Dan Eklund ,  Sivert Westergard

Inventor： Dan Eklund ,  Sivert Westergard

IPC: B05C5/02 ,  B05C1/08 ,  B05C3/18 ,  B05C11/04 ,  B41F31/06 ,  D21H23/40

CPC classification number: D21H23/40 ,  B05C11/04 ,  D21H5/0015

Abstract: A coater for coating a running paper or cardboard web comprises a coating chamber having one side open against the web and means for filling the coating chamber with pressurized coating substance. The coating chamber is limited in the longitudinal direction of the web by a web entrance wall, and opposite thereof, a back wall in the form of a doctor member for forming a coating layer on the web. The distance between the walls is so short that, at normal web running speed, the web moves from the web entrance wall to the back wall in a time of at the most 0.3 s, preferably at the most 0.03 s. Coating substance is supplied by means of positive pressure to the coating chamber at a position close to the web entrance wall. Close to the web entrance wall the flow of coating substance in the coating chamber is divided into two branches, of which a first branch follows the web in its running direction towards the back wall and a second branch, which is considerably greater than the first branch, flows out from the coating chamber through a slot between the web entrance wall and the web.

Abstract translation: 用于涂覆正在运行的纸或纸板幅材的涂布机包括具有一侧朝向纸幅打开的涂布室和用于用加压包衣物质填充涂布室的装置。 涂布室通过纸幅入口壁在幅材的纵向方向上被限制，并且与其相对，具有用于在幅材上形成涂层的刮板构件形式的后壁。 壁之间的距离很短，使得在正常的幅材运行速度下，幅材在最多0.3s，优选最多0.03s的时间内从纸幅入口壁移动到后壁。 涂层物质通过正压力在靠近纸幅入口壁的位置处供给到涂布室。 靠近网状入口壁，涂覆室中的涂层物质的流动被分成两个分支，其中第一分支沿着其向着后壁的行进方向沿着幅材并且第二分支远大于第一分支 ，从涂布室通过纤维网入口壁和纤维网之间的槽流出。

公开(公告)号：US4712506A

公开(公告)日：1987-12-15

申请号：US834559

申请日：1986-02-28

Applicant: Rauno Rantanen ,  Sivert Westergard

Inventor： Rauno Rantanen ,  Sivert Westergard

IPC: B05C3/12 ,  B05C5/02 ,  B05C9/04 ,  B05C11/04

CPC classification number: D21H25/08 ,  B05C9/04 ,  D21H5/0062

Abstract: A system for two-sided coating of a running paper web. The device comprises an application device for spreading the coating material over both sides of the web running through a first nip formed by a rotating counter roll and a levelling member.According to the invention, the device includes an auxiliary roll, which is, in the direction of progress of the web, fitted at a certain distance from the first nip and which, together with the counter roll, forms a second nip for the web which has followed along with the said roll over the distance. The diameter of the auxiliary roll is substantially smaller than the diameter of the counter roll, and the face of the auxiliary roll is substantially harder than that of the counter roll. By means of the invention, the risk of damaging the coating at the side of the web facing the roll can be reduced by the web being detached from the second nip formed between the rolls.

Abstract translation: 用于运行纸幅的双面涂布的系统。 该装置包括一涂抹装置，用于在涂布材料的两侧上铺展，该纸穿过由旋转的反向辊和调平件形成的第一压区。 根据本发明，该装置包括一个辅助卷筒，该卷筒纸沿着网状物的进给方向安装在与第一压区相距一定距离处，并且与该对位辊一起形成用于卷筒纸的第二压区 跟随着这一切的距离。 辅助辊的直径基本上小于对侧辊的直径，而辅助辊的表面基本上比反向辊的直径更硬。 通过本发明，可以通过从形成在辊之间的第二辊隙分离纤维网来减少损坏卷筒纸面向卷筒纸一侧的涂层的风险。

公开(公告)号：US4822640A

公开(公告)日：1989-04-18

申请号：US650798

申请日：1984-09-14

Applicant: Raimo Tuhkanen ,  Markku Grasten ,  Sivert Westergard

Inventor： Raimo Tuhkanen ,  Markku Grasten ,  Sivert Westergard

IPC: B05C1/08 ,  B05C5/02 ,  B05C9/04 ,  B05D1/26 ,  D21H27/30 ,  B05C11/02 ,  B05D3/12

CPC classification number: D21H23/32 ,  B05C5/0254 ,  B05C9/04 ,  D21H23/70 ,  D21H25/08 ,  D21H5/0012 ,  D21H5/005 ,  D21H5/0062 ,  D21H23/42

Abstract: An appliance for a double-sided coating of a moving web by means of two coating substance applicators and a smoothing nip comprising a back-up roll on one side of the web and a adjustable levelling blade or the like on the other side of the web. The coating substance is supplied on the web directly on the side facing the levelling blade and on the surface of the back-up roll or the web on the other side of the web. The smoothing nip and the both applicators are located within a 30 degrees sector of the back-up roll, preferably within a 20 degrees sector.

Abstract translation: 一种用于通过两个涂料物质施加器和平滑辊隙对移动幅材进行双面涂布的装置，其包括在幅材的一侧上的支撑辊和在幅材的另一侧上的可调整的调平刀片等 。 涂布物质直接在面向调平叶片的一侧和支撑辊的表面上或幅材的另一侧上的幅材上供给。 平滑辊隙和两个涂抹器位于支撑辊的30度扇形区域内，优选在20度扇区内。