首页> 外国专利> FOER FARING FRAMSTAELLNING AV PAPPER

FOER FARING FRAMSTAELLNING AV PAPPER

机译:公平准备纸张

摘要

A process for drying and consolidating a paper making web so as to enhance translucency in the resulting paper. It is known to provide integral patterning by means of a dandy roll or by press marking or by embossing, but none of these known methods achieve controlled enhancement of translucency or tensile strength of paper. The invention provides a process for producing paper having at least portions with enhanced translucency in which a paper making web formed at least in part of cellulosic fibres and having a water content of at least 20% is simultaneously supported and constrained against shrinkage without preventing the release of water or water vapour therefrom, maintained at a temperature sufficient to dry the web without causing thermal degradation as it dries, and subjected across at least portions thereof to a pressure sufficient to produce enhanced trenslucency and tensile strength in the corresponding portions of the dried paper. If the portions of enhanced translucency are interconnected to form a network this will confer enhanced tensile strength on the structure of the paper.
机译:一种干燥和固结造纸网以增强所得纸的半透明性的方法。已知通过花旦辊或通过压印或通过压花来提供整体图案,但是这些已知方法均不能实现纸的半透明性或拉伸强度的可控增强。本发明提供了一种生产具有至少部分具有提高的半透明性的纸的方法,其中,同时支撑并限制了至少部分形成于纤维素纤维中并且含水量至少为20%的造纸网,并且防止收缩,同时防止了脱模。的水或水蒸气,保持在足以干燥纸幅的温度下,而不会引起干燥时的热降解,并使其至少一部分受到足以在干燥纸的相应部分产生增强的半透明性和拉伸强度的压力。如果增强的半透明部分相互连接以形成网络,则这将赋予纸结构增强的拉伸强度。

著录项

  • 公开/公告号FI832631A0

    专利类型

  • 公开/公告日1983-07-19

    原文格式PDF

  • 申请/专利权人 THE WIGGINS TEAPE GROUP LIMITED;

    申请/专利号FI19830002631

  • 发明设计人 BAKER COLIN FRANCIS;

    申请日1983-07-19

  • 分类号D21F;

  • 国家 FI

  • 入库时间 2022-08-22 11:10:09

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