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1. 发明申请

WO2006007517A2 LOW COMPACTION, PNEUMATIC DEWATERING PROCESS FOR PRODUCING ABSORBENT SHEET 审中-公开
标题翻译：低压，气动脱水工艺生产吸收片
公开(公告)号：WO2006007517A2
公开(公告)日：2006-01-19
申请号：PCT/US2005/023194
申请日：2005-06-28
申请人： FORT JAMES CORPORATION , MURRAY, Frank C. , WENDT, Greg
发明人： MURRAY, Frank C. , WENDT, Greg
IPC分类号： B31F1/12
CPC分类号： D21H27/002 , B31F1/126 , D21F3/0254 , D21F11/006 , D21F11/14
摘要： A low-compaction method of making an absorbent cellulosic web includes: forming a nascent web from a papermaking furnish; dewatering the nascent web to a consistency of from about 10 to about 30 percent on a foraminous forming support traveling at a first speed; rush-transferring the web at a consistency of from 10 to about 30 percent to an open texture fabric traveling at a second speed slower than the first speed of the forming support; further dewatering the web on the impression fabric to a consistency of from about 30 to about 60 percent by way of (i) combining the open texture fabric bearing said web with a fluid distribution membrane and an anti-rewet felt as the three pass through a nip into a pressure chamber defined in part by a plurality of nip rolls, the fluid distribution membrane bearing against the side of the open texture fabric away from the web, with the anti-rewet felt bearing against the web, and (ii) applying a pneumatic pressure gradient from the distributor membrane through the web thereby dewatering the web; and drying the web. Preferably the process includes the steps of selecting the papermaking furnish and controlling the process such that the dried web has a void volume fraction of at least 0.7, a hydraulic diameter in the range of from about 3 to about 20 microns and a Wet Springback Ratio of at least about 0.65. Optionally provided is a high solids fabric crepe in a pressure nip.
摘要翻译：制造吸收性纤维素网的低压实方法包括：从造纸配料形成新生网; 在初始速度下移动的多孔成形支撑件上将初生纤维网脱水至约10％至约30％的稠度; 以相对于成形支撑件的第一速度慢的第二速度行进的开放纹理织物将幅材以10％至约30％的一致性转移; 通过（i）将带有所述纤维网的开放纹理织物与流体分布膜和防再润湿毡组合在一起，将印模织物上的幅材进一步脱水至约30至约60％的稠度，夹持在由多个压辊部分限定的压力室中，流体分配膜抵靠打开的织物织物远离纸幅的方向承载，抗再湿润毡轴承抵靠纸幅，并且（ii）施加从分配器膜通过纤维网的气动压力梯度，从而使幅材脱水; 并干燥网。优选地，该方法包括选择造纸配料并控制该方法的步骤，使得干燥的幅材具有至少0.7的空隙体积分数，约3至约20微米的水力直径和湿回弹比至少约0.65。任选地，在压力压区中提供高固体织物绉纹。

2. 发明申请

WO2006113025A2 FABRIC CREPE/DRAW PROCESS FOR PRODUCING ABSORBENT SHEET 审中-公开
标题翻译：用于生产吸收片的织物制品/拉丝工艺
公开(公告)号：WO2006113025A2
公开(公告)日：2006-10-26
申请号：PCT/US2006/010132
申请日：2006-03-21
申请人： FORT JAMES CORPORATION , SUPER, Guy H. , EDWARDS, Steven L. , MCCULLOUGH, Stephen J. , MURRAY, Frank C.
发明人： SUPER, Guy H. , EDWARDS, Steven L. , MCCULLOUGH, Stephen J. , MURRAY, Frank C.
IPC分类号： B31F1/16 , D21F11/00
CPC分类号： D21H27/02 , A47K10/02 , B31F1/126 , B31F1/16 , D21F11/006 , D21H11/14 , D21H21/20 , D21H25/005 , D21H27/005 , D21H27/007 , D21H27/40 , Y10T428/24455
摘要： A method of making a fabric-creped absorbent cellulosic sheet comprising: a) compactively dewatering a papermaking furnish to form a nascent web having an apparently random distribution of papermaking fiber; b) applying the dewatered web having the apparently random fiber distribution to a translating transfer surface moving at a first speed; c) fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric, the creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric to form a web with a drawable reticulum.
摘要翻译：一种制造织物起皱吸收性纤维素片的方法，包括：a）对造纸配料进行紧密脱水以形成具有造纸纤维明显随意分配的初生纤维网; b）将具有明显无规纤维分布的脱水纤维网施加到以第一速度移动的平移转印面; c）使用图案化的起皱织物以约30至约60％的稠度将织物从转印表面起皱，起皱步骤在压力下在织物起皱辊隙中发生，所述起皱辊隙限定在转移表面和起皱织物之间，其中织物以比所述转移表面的速度慢的第二速度行进，织物图案，辊隙参数，速度三角形和幅材一致性被选择为使得幅材从转印表面起皱并重新分布在起皱织物上以形成网有一个可拉网。

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