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2. 发明申请

WO1990004676A1 A PAPER MACHINE FOR MANUFACTURING A SOFT CREPE PAPER WEB 审中-公开
标题翻译：一种用于制造软纸张纸的纸张机
公开(公告)号：WO1990004676A1
公开(公告)日：1990-05-03
申请号：PCT/SE1989000579
申请日：1989-10-20
申请人： VALMET PAPER MACHINERY INC. , ANDERSSON, Anders, Ingmar , HELLNER, Cai, Olof
发明人： VALMET PAPER MACHINERY INC.
IPC分类号： D21F09/00
CPC分类号： D21F9/003 , D21F11/14
摘要： A paper machine for manufacturing a soft crepe paper web, comprising a wet end (1) having a forming wire (4) for forming and carrying a paper web (7), and a drying section (2) provided with a drying cylinder (12), said paper machine having a first operating arrangement for manufacturing a soft crepe paper web with certain bulk and softness values, in which first operating arrangement the drying section has a felt (13) arranged to run in a loop from a pick-up roll (14) at the transition between the wet end and drying section, to a press roll (15) at the drying cylinder, and the carrying forming wire runs up to the pick-up roll (14) to transfer the paper web to the felt (13). According to the invention the paper machine is rebuildable between said first operating arrangement and a second operating arrangement for the production of a soft crepe paper web having higher bulk and softness values in relation to the first operating arrangement and in which second operating arrangement the carrying forming wire (4a) runs up to the press roll (15). Said felt is replaced by a belt (25) of wire type, movable in a loop from the pick-up roll (14) to the press roll in contact with the carrying forming wire (4a), while enclosing the paper web therebetween in order to form a sandwich structure. Means (29-31) producing jets of air are arranged along the sandwich structure to remove water from the paper web (7). Further cleaning means (33-36, 38) are disposed along the belt (25) to clean it so that the permeability to water and air is maintained.
摘要翻译：一种用于制造柔软绉纹纸幅的造纸机，包括具有用于形成和承载纸幅（7）的成形网（4）的湿端（1）和设置有干燥筒（12）的干燥部（2）），所述造纸机具有用于制造具有特定体积和柔软度值的柔软绉纹纸幅的第一操作装置，其中第一操作装置，干燥部分具有毛毯（13），布置成从拾取辊（14）在湿端和干燥部之间的过渡处到干燥筒处的压榨辊（15），并且运送成型丝线向上移动到拾取辊（14）以将纸幅转印到毡（13）。根据本发明，造纸机可在所述第一操作装置和第二操作装置之间重建，用于生产相对于第一操作装置具有较高体积和柔软度值的柔软绉纹纸幅，并且其中第二操作装置线（4a）延伸到压辊（15）。所述毛毡由导线类型的带（25）代替，可以从拾取辊（14）到与承载成形网（4a）接触的压辊的循环中移动，同时按顺序将纸幅包围在其间形成三明治结构。沿着夹层结构布置产生空气射流的装置（29-31）以从纸幅（7）去除水分。进一步的清洁装置（33-36,38）沿着带（25）设置以将其清洁，从而保持对水和空气的渗透性。

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