首页> 外国专利> Paper machine for making a soft and fibrous paper sheet and Method for making a soft and fibrous paper sheet on a paper machine.

Paper machine for making a soft and fibrous paper sheet and Method for making a soft and fibrous paper sheet on a paper machine.

机译:用于制造柔软和纤维状纸张的造纸机以及用于在造纸机上制造柔软和纤维状纸张的方法。

摘要

A paper machine for manufacturing soft paper comprises a press section (3) with a shoe press nip, through which a substantially impermeable belt (16) and a felt (15) run with the fibrous web (1) enclosed between them, a drying cylinder (5) and a transfer roll (17) forming a nip for transfer of the web to the drying cylinder. According to the invention the belt (16) comprises a carrier with a compressible polymer coating having a hardness of 50 to 97 Shore A, which polymer coating has a web-contacting surface with a degree of roughness in unloaded state of Rz=2-80 m, measured in accordance with ISO 4287, and a lower degree of roughness of Rz=0-20 m when the polymer coating is compressed by linear load of 20-220 kN/m on the belt as measured in a non-extended press nip, the felt and the web-carrying felt being arranged to run together not until they enter the press section, the belt running directly to the press section. Further, the belt runs from the shoe press to the drying cylinder to carry the web to the transfer nip, the felt running away from the belt before a water film formed in the nip on the belt breaks up. A device (31) is also provided for applying adhesive on the drying cylinder.
机译:一种用于制造软纸的造纸机,其包括具有靴式压榨压区的压榨部(3),干燥筒,通过该压榨部(3),基本不可渗透的皮带(16)和毛毡(15)穿过纤维网(1)并在它们之间运行。 (5)和形成辊隙的转印辊(17),用于将纸幅转印到干燥筒上。根据本发明,皮带(16)包括具有可压缩聚合物涂层的载体,该涂层具有50至97肖氏A的硬度,该聚合物涂层具有在无负载状态下粗糙度为Rz = 2-80的幅材接触表面。 m(根据ISO 4287测量)和较低的粗糙度Rz = 0-20 m(当在非扩展压区中通过20-220 kN / m的线性负载在皮带上对聚合物涂层进行压缩时) ,毛毯和带网毛毯要布置成一起运行,直到它们进入压榨部,皮带直接运行到压榨部。此外,皮带从靴式压榨机运行到干燥滚筒,将纸幅运送到转印压区,在皮带上的压区中形成的水​​膜破裂之前,毡布就从皮带上流走了。还提供了用于在干燥筒上施加粘合剂的装置(31)。

著录项

  • 公开/公告号BR9908983B1

    专利类型

  • 公开/公告日2009-01-13

    原文格式PDF

  • 申请/专利权人

    申请/专利号BR19999908983

  • 发明设计人 INGVAR KLERELID;ANDERS LINDEN;

    申请日1999-03-12

  • 分类号D21F3;D21F9;D21F3/04;D21F11;D21F11/14;D21H27;

  • 国家 BR

  • 入库时间 2022-08-21 19:28:36

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