Method of making a fabric-creped absorbent cellulosic sheet
    1.
    发明授权
    Method of making a fabric-creped absorbent cellulosic sheet 有权
    制造织物起皱吸收性纤维素片材的方法

    公开(公告)号:US08562786B2

    公开(公告)日:2013-10-22

    申请号:US13460891

    申请日:2012-05-01

    IPC分类号: B31F1/16 B31F1/12 D21H25/04

    摘要: A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a translating transfer surface and is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping fabric travels at a fabric speed that is slower than the speed of the transfer surface. The nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The creped web is dried to form a dried web, and the dried web is drawn. The drawing step includes drawing the dried web between a first draw roll and a second draw roll.

    摘要翻译: 制造织物起皱吸收性纤维素片材的方法。 造纸配料被紧密脱水以形成新生网。 初生纤维网被施加到平移转印表面,并且利用起皱织物以约30至约60%的稠度从转印表面织物起皱。 起皱织物以比转印表面的速度慢的织物速度行进。 新生的纤维网从转移​​表面起皱并重新分布在起皱织物上以形成具有可拉网的起皱纤维网,其具有不同局部基重的多个相互连接的区域。 将起皱纤维网干燥以形成干燥的纤维网,并且拉伸干燥的纤维网。 拉伸步骤包括在第一拉伸辊和第二拉伸辊之间拉伸干燥的纤维网。

    Fabric crepe/draw process for producing absorbent sheet
    2.
    发明授权
    Fabric crepe/draw process for producing absorbent sheet 有权
    用于生产吸收性片材的织物起皱/拉伸工艺

    公开(公告)号:US07789995B2

    公开(公告)日:2010-09-07

    申请号:US11108375

    申请日:2005-04-18

    IPC分类号: B31F1/12 B31F1/16

    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%的稠度从转印表面织物卷起纸幅,起皱步骤在压力下在织物起皱辊隙中发生,该织物起皱辊隙限定在转印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。

    Process for producing absorbent sheet
    3.
    发明授权
    Process for producing absorbent sheet 有权
    生产吸收性片材的方法

    公开(公告)号:US07670457B2

    公开(公告)日:2010-03-02

    申请号:US12286435

    申请日:2008-09-30

    IPC分类号: B31F1/12

    摘要: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric 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 such that the web has a plurality of fiber-enriched regions arranged in a pattern corresponding to the patterned creping surface of the fabric, optionally drying the wet web while it is held in the creping fabric. Preferably, the formed web is characterized in that its void volume increases upon drawing.

    摘要翻译: 制造纤维素网的方法包括:从造纸配料形成初生纤维网,初生纤维网通常具有造纸纤维的随机分布; b)将具有大致随机分布的造纸纤维的幅材转印到以第一速度移动的平移转印表面; 将幅材干燥至约30%至约60%的稠度,包括在转移到转印表面之前或同时转移至纸幅上的压实脱水; 织物使用具有图案化的起皱表面的起皱织物以约30至约60%的稠度从转印表面起皱织物,织物起皱步骤在压力下在织物起皱辊隙中发生,所述织物起皱辊隙限定在转移表面和起皱之间 织物,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,速度增量​​和幅材稠度被选择为使得纤维网从转印表面起皱并重新分布在起皱织物上,如 纤维网具有以对应于织物的图案化起皱表面的图案布置的多个纤维富集区域,任选地在湿纸幅被保持在起皱织物中时干燥。 优选地,所形成的纤维网的特征在于其拉伸时其空隙体积增加。

    Fabric crepe and in fabric drying process for producing absorbent sheet
    4.
    发明授权
    Fabric crepe and in fabric drying process for producing absorbent sheet 有权
    织物绉纱和织物干燥工艺用于生产吸收性片材

    公开(公告)号:US07442278B2

    公开(公告)日:2008-10-28

    申请号:US11108458

    申请日:2005-04-18

    IPC分类号: B31F1/16 B31F1/07

    摘要: A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric 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 such that the web has a plurality of fiber-enriched regions arranged in a pattern corresponding to the patterned creping surface of the fabric, optionally drying the wet web while it is held in the creping fabric. Preferably, the formed web is characterized in that its void volume increases upon drawing.

    摘要翻译: 制造纤维素网的方法包括:从造纸配料形成初生纤维网,初生纤维网通常具有造纸纤维的随机分布; b)将具有大致随机分布的造纸纤维的幅材转印到以第一速度移动的平移转印表面; 将幅材干燥至约30%至约60%的稠度,包括在转移到转印表面之前或同时转移至纸幅上的压实脱水; 织物使用具有图案化的起皱表面的起皱织物以约30至约60%的稠度从转印表面起皱织物,织物起皱步骤在压力下在织物起皱辊隙中发生,该织物起皱辊隙限定在转移表面和起皱之间 织物,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,速度增量​​和幅材稠度被选择为使得纤维网从转印表面起皱并重新分布在起皱织物上,如 纤维网具有以对应于织物的图案化起皱表面的图案布置的多个纤维富集区域,任选地在湿纸幅被保持在起皱织物中时干燥。 优选地,所形成的纤维网的特征在于其拉伸时其空隙体积增加。

    Method Of Making A Fabric-Creped Absorbent Cellulosic Sheet
    5.
    发明申请
    Method Of Making A Fabric-Creped Absorbent Cellulosic Sheet 有权
    制造织物起皱吸收纤维素片的方法

    公开(公告)号:US20120216972A1

    公开(公告)日:2012-08-30

    申请号:US13460891

    申请日:2012-05-01

    IPC分类号: D21F11/00

    摘要: A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a translating transfer surface and is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping fabric travels at a fabric speed that is slower than the speed of the transfer surface. The nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The creped web is dried to form a dried web, and the dried web is drawn. The drawing step includes drawing the dried web between a first draw roll and a second draw roll.

    摘要翻译: 制造织物起皱吸收性纤维素片材的方法。 造纸配料被紧密脱水以形成新生网。 初生纤维网被施加到平移转印表面,并且利用起皱织物以约30至约60%的稠度从转印表面织物起皱。 起皱织物以比转印表面的速度慢的织物速度行进。 新生的纤维网从转移​​表面起皱并重新分布在起皱织物上以形成具有可拉网的起皱纤维网,其具有不同局部基重的多个相互连接的区域。 将起皱纤维网干燥以形成干燥的纤维网,并且拉伸干燥的纤维网。 拉伸步骤包括在第一拉伸辊和第二拉伸辊之间拉伸干燥的纤维网。

    Method of Making a Fabric-Creped Absorbent Cellulosic Sheet
    7.
    发明申请
    Method of Making a Fabric-Creped Absorbent Cellulosic Sheet 有权
    织物起皱吸收纤维素片的制备方法

    公开(公告)号:US20120145341A1

    公开(公告)日:2012-06-14

    申请号:US13397753

    申请日:2012-02-16

    IPC分类号: D21F11/00

    摘要: A method of making a fabric-creped absorbent cellulosic sheet includes applying a jet of papermaking furnish to a forming wire, the jet having a jet velocity and the forming wire moving at a forming wire velocity. The papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a transfer surface that is moving at a transfer surface speed. The nascent web is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric that is traveling at a fabric-creping speed, the fabric-creping speed being slower than the transfer surface speed, and the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, such that the nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web. The creped web is dried. The jet/wire velocity delta and the fabric-creping step are controlled such that the dry machine direction to cross-machine direction (MD/CD) tensile ratio of the dried web is about at most 1.5.

    摘要翻译: 制造织物起皱吸收性纤维素片材的方法包括将造纸配料的射流施加到成形线材,喷射器具有喷射速度,并且成形丝线以成形线速度移动。 造纸配料被紧密脱水以形成新生网。 新生网被施加到以转印表面速度移动的转印表面。 初生纤维网采用织物起皱速度行进的起皱织物,织物起皱速度慢于转印面速度,以约30至约60%的浓度从转印表面起皱。 所述织物起皱步骤在压力下在限定在转移表面和起皱织物之间的织物起皱辊隙中发生,使得新生纤维网从转移​​表面起皱并重新分布在起皱织物上以形成起皱纤维网。 起皱网被干燥。 控制射流/丝速度三角形和织物起皱步骤,使干燥幅材的机器纵向方向(MD / CD)拉伸比约为1.5以下。

    Method of making a cellulosic absorbent sheet
    9.
    发明授权
    Method of making a cellulosic absorbent sheet 有权
    制造纤维素吸收片的方法

    公开(公告)号:US08568559B2

    公开(公告)日:2013-10-29

    申请号:US13460936

    申请日:2012-05-01

    IPC分类号: B31F1/16 B31F1/12 D21H25/04

    摘要: A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the void volume of the dried web.

    摘要翻译: 制造纤维素吸收片的方法。 由水性造纸配料制备纤维素网。 网状织物起皱。 织物起皱步骤形成具有可拉伸网状物的起皱网状物,其具有多个不同局部基重的相互连接的区域,至少包括:(i)多个相对较高的局部基重的纤维富集区域,其通过 (ii)多个下部局部基重连接区域。 可拉伸网状物包括能够在拉伸时空隙体积增加的内聚纤维基体。 将起皱纤维网干燥,同时基本上保留可拉伸网状物,以形成干燥的纤维网,并且拉伸干燥的纤维网。 拉伸步骤增加了干燥纤维网的空隙体积。