公开(公告)号：WO1992017644A1

公开(公告)日：1992-10-15

申请号：PCT/US1992001817

申请日：1992-03-03

Applicant: SCOTT PAPER COMPANY

Inventor： SCOTT PAPER COMPANY ,  KRALL, Richard, J. ,  SCHAFTLEIN, Richard, W.

IPC: D21F09/00

CPC classification number: D21F9/003

Abstract: Disclosed is an improvement to twin wire forming wherein an open support structure in the form of an opened or grilled breast roll or a slotted forming shoe supports at least a portion of the outer wire in the forming throat. In such manner, the gap between the open support structure and the forming cylinder can be narrowed such that the gap is less than or equal to the thickness of the jet of stock injected between the wire to form the web. The jet of stock so injected impinges on both the forming cylinder and the open support structure and immediate drainage is provided through the outer wire without substantially varying the tension or radius of the outer wire thereby generally improving uniformity and, in particular, improving basis weight uniformity of the web produced.

Abstract translation: 公开了对双网成形的改进，其中开式或烤母乳卷形式的开口支撑结构或开槽成形靴支撑成形喉部中的外部线的至少一部分。 以这种方式，开口支撑结构和成形圆筒之间的间隙可以变窄，使得间隙小于或等于在形成网之间的导线之间注入的料流的厚度。 喷射的喷射液体喷射冲击成形圆筒和开放的支撑结构，并通过外线提供立即的排水，而基本上不改变外部钢丝的张力或半径，从而通常改善均匀性，特别是提高基重均匀性 的网页制作。

公开(公告)号：EP0532741A1

公开(公告)日：1993-03-24

申请号：EP92910305.0

申请日：1992-03-03

Applicant: SCOTT PAPER COMPANY

Inventor： KRALL, Richard, J. ,  SCHAFTLEIN, Richard, W.

IPC: D21F9

CPC classification number: D21F9/003

Abstract: Amélioration du formage à deux toiles selon laquelle une structure de support ouverte ayant la forme d'un rouleau de tête ouvert ou à lames ou un patin de formage à fentes soutient au moins une partie de la toile machine extérieure dans la gorge de formage. Ainsi, il est possible de réduire l'écart entre la structure de support ouverte et le cylinder de formage de manière à ce que ledit écart soit inférieur ou égal à l'épaisseur du jet de pâte de papier projeté entre les deux toiles pour former la bande de papier. Le jet de pâte à papier ainsi projeté heurte à la fois le cylindre de formage et la structure de support ouverte et un drainage immédiat est opéré à travers la toile machine extérieure sans modification importante de la tension ou du rayon de ladite toile machine extérieure, ce qui améliore généralement l'uniformité et en particulier l'uniformité du poids par rame de la bande de papier produite.

公开(公告)号：EP0532741B1

公开(公告)日：1997-06-04

申请号：EP92910305.9

申请日：1992-03-03

Applicant: SCOTT PAPER COMPANY

Inventor： KRALL, Richard, J. ,  SCHAFTLEIN, Richard, W.

IPC: D21F9/00

CPC classification number: D21F9/003

Abstract: Disclosed is an improvement to twin wire forming wherein an open support structure in the form of an opened or grilled breast roll or a slotted forming shoe supports at least a portion of the outer wire in the forming throat. In such manner, the gap between the open support structure and the forming cylinder can be narrowed such that the gap is less than or equal to the thickness of the jet of stock injected between the wire to form the web. The jet of stock so injected impinges on both the forming cylinder and the open support structure and immediate drainage is provided through the outer wire without substantially varying the tension or radius of the outer wire thereby generally improving uniformity and, in particular, improving basis weight uniformity of the web produced.