Method of making a cellulosic absorbent sheet
    1.
    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:US08568560B2

    公开(公告)日:2013-10-29

    申请号:US13460940

    申请日:2012-05-01

    Abstract: 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 bulk of the dried web.

    Abstract translation: 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幅材的体积。

    High solids fabric crepe process for producing absorbent sheet with in-fabric drying
    2.
    发明授权
    High solids fabric crepe process for producing absorbent sheet with in-fabric drying 有权
    用于生产具有织物干燥的吸收性片材的高固含量织物起皱方法

    公开(公告)号:US08512516B2

    公开(公告)日:2013-08-20

    申请号:US13397720

    申请日:2012-02-16

    CPC classification number: D21F11/14 D21F11/006 D21H27/005

    Abstract: A method of making a cellulosic web having an elevated absorbency includes forming a nascent web having a random distribution of fiber orientation from a papermaking furnish, non-compactively drying the nascent web to a consistency of from about 30 to about 60 percent, thereafter, transferring the nascent web to a translating transfer surface that is moving at a transfer surface speed, and fabric-creping the nascent web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric, 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 wet web. The creped wet web is dried while the web is held in the creping fabric.

    Abstract translation: 制备具有提高的吸收性的纤维素网的方法包括形成具有来自造纸配料的纤维取向的随机分布的新生纤维网,将来自初生网的非压实干燥至约30至约60%的稠度,然后转移 初始纸幅到以转印表面速度移动的平移转印表面,并且利用起皱织物以约30至约60%的稠度从转印表面起皱初生纸幅,织物起皱步骤发生 在传送表面和起皱织物之间的织物起皱辊隙中受压,使得新生纤维网从转印表面起皱并重新分布在起皱织物上以形成起皱湿纸幅。 将起皱的湿纸幅干燥,同时将纸幅保持在起皱织物中。

    Method Of Making A Cellulosic Absorbent Sheet
    4.
    发明申请
    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:US20120211186A1

    公开(公告)日:2012-08-23

    申请号:US13460936

    申请日:2012-05-01

    Abstract: 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.

    Abstract translation: 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。

    High solids fabric crepe process for producing absorbent sheet with in-fabric drying
    5.
    发明授权
    High solids fabric crepe process for producing absorbent sheet with in-fabric drying 有权
    用于生产具有织物干燥的吸收性片材的高固含量织物起皱方法

    公开(公告)号:US08142612B2

    公开(公告)日:2012-03-27

    申请号:US12321448

    申请日:2009-01-21

    CPC classification number: D21F11/14 D21F11/006 D21H27/005

    Abstract: A method of making a cellulosic web having an elevated absorbency. The method includes (a) forming a nascent web having an apparently random distribution of fiber orientation from a papermaking furnish, (b) non-compactively drying the nascent web to a consistency of from about 30 to about 60 percent, (c) thereafter, transferring the web to a translating transfer surface that is moving at a first speed, and (d) fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping step occurs 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 that is slower than the speed of the transfer surface. The fabric pattern, nip parameters, velocity delta and web consistency are selected such that the web is creped from the transfer surface and redistributed on the creping fabric. The method further includes (e) retaining the wet web in the creping fabric, and (f) drying the wet web while it is held in the creping fabric to a consistency of at least about 90 percent. The web has an absorbency of at least about 5 g/g and a cross machine direction (CD) stretch of at least 4 percent.

    Abstract translation: 制备具有高吸收性的纤维素网的方法。 该方法包括(a)形成具有来自造纸配料的纤维取向的显然随机分布的初生纤维网,(b)将初生纤维网非压实干燥至约30至约60%的稠度,(c)此后, 将幅材转移到以第一速度移动的平移转印表面,以及(d)利用起皱织物以约30至约60%的浓度将纸幅从转印表面织物起皱。 起皱步骤在限定在转移表面和起皱织物之间的织物起皱辊隙中在压力下发生,其中织物以比转印表面的速度慢的第二速度行进。 选择织物图案,辊隙参数,速度三角形和幅材一致性,使得幅材从转印表面起皱并重新分布在起皱织物上。 该方法还包括(e)将湿纸幅保持在起皱织物中,以及(f)当将湿纸幅保持在起皱织物中至少达到约90%的稠度时,干燥湿纸幅。 纸幅具有至少约5g / g的吸收率和至少4%的横向机器方向(CD)拉伸。

    Belt-Creped, Variable Local Basis Weight Absorbent Sheet Prepared With Perforated Polymeric Belt
    7.
    发明申请
    Belt-Creped, Variable Local Basis Weight Absorbent Sheet Prepared With Perforated Polymeric Belt 有权
    带穿孔,可变局部基重吸收片,用穿孔聚合物带制备

    公开(公告)号:US20100186913A1

    公开(公告)日:2010-07-29

    申请号:US12694650

    申请日:2010-01-27

    Abstract: An absorbent cellulosic sheet is formed by belt creping a nascent web at a consistency of 30% to 60% utilizing a generally planar perforated polymeric creping belt to form a sheet with fiber-enriched higher basis weight hollow domed regions on one side of the sheet joined by a network of lower local basis weight connecting regions forming a network where upwardly and inwardly inflected consolidated fibrous regions exhibiting CD fiber orientation bias form transition areas between the connecting regions and the domed regions. When formed into roll products, the cellulosic sheets exhibit a surprising combination of bulk, roll firmness, absorbency and softness. The consolidated fibrous regions are preferably saddle shaped and exhibit a matted structure on both their outer and inner surfaces.

    Abstract translation: 吸收性纤维素片材通过使用通常平面的穿孔聚合物起皱带以30%至60%的稠度起皱初生网来形成,以在片材的一侧上形成具有富含纤维的较高基重的中空圆顶区域的片材 通过形成网络的较低局部基重连接区域的网络,其中向上和向内弯曲的固化的纤维区域表现出CD纤维取向偏置,形成连接区域和圆顶区域之间的过渡区域。 当成型成卷产品时,纤维素片材呈现出令人惊奇的组合体积,卷度,吸收性和柔软性。 固结的纤维区域优选地是鞍形的,并且在它们的外表面和内表面上都呈现无光泽的结构。

    High solids fabric crepe process for producing absorbent sheet with in-fabric drying

    公开(公告)号:US07503998B2

    公开(公告)日:2009-03-17

    申请号:US11151761

    申请日:2005-06-14

    CPC classification number: D21F11/14 D21F11/006 D21H27/005

    Abstract: A method of making a fabric-creped absorbent cellulosic sheet is provided which includes dewatering a papermaking furnish and partially drying the web without wet-pressing before applying it to a translating transfer surface moving at a first speed. The process further includes fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric, the creping step occurring under pressure in a 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 surface and redistributed on the creping fabric. After creping, the web is dried, preferably with a plurality of can dryers to a consistency of at least about 90 percent while it is held in the creping fabric.

    Process for producing absorbent sheet
    10.
    发明申请
    Process for producing absorbent sheet 有权
    生产吸收性片材的方法

    公开(公告)号:US20090038768A1

    公开(公告)日:2009-02-12

    申请号:US12286435

    申请日:2008-09-30

    Abstract: 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.

    Abstract translation: 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。

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