发明名称 Method and apparatus for producing extensible paper
摘要 PCT No. PCT/EP96/01484 Sec. 371 Date Oct. 7, 1997 Sec. 102(e) Date Oct. 7, 1997 PCT Filed Apr. 4, 1996 PCT Pub. No. WO96/31647 PCT Pub. Date Oct. 10, 1996A method for producing extensible paper, comprising the following stages: feeding a mix of vegetable fibres to a kneader member, mixing the mix with water in the kneader, beating the fibres to obtain a pulp, transferring the beaten pulp into a flow chest, feeding the beaten pulp from the flow chest onto a paper web formation cloth with consequent reduction of the water percentage by gravity and vacuum, pressing the web, with consequent further reduction of its water content, initial drying of the paper web to a substantially constant moisture content of between 15% and 65%, compacting, final drying to a moisture content of between 15% and 4%, preferably 10%-8%, glazing, wherein: the beating stage is carried out by rubbing the fibres in a multistage unit to obtain a pulp having a degree of beating of at least 30 DEG SR, the compacting stage is carried out between at least a pair of rollers of which one is of hard material comprising circunferential surface ribs and driven at greater speed, and the other is of soft material with a smooth surface and driven at lesser speed.
申请公布号 US6024832(A) 申请公布日期 2000.02.15
申请号 US19970930432 申请日期 1997.10.07
申请人 GIORGIO TRANI CARTIERE CARIOLARO S. P. A. 发明人 TRANI, GIORGIO;CARIOLARO, NORBERTO
分类号 D21F11/00;D21H11/00;D21H27/00;(IPC1-7):D21H11/12;D21H23/22 主分类号 D21F11/00
代理机构 代理人
主权项
地址