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    • 5. 发明授权
    • Method of making a fabric-creped absorbent cellulosic sheet
    • 制造织物起皱吸收性纤维素片材的方法
    • US08388804B2
    • 2013-03-05
    • US13397753
    • 2012-02-16
    • Guy H. SuperSteven L. EdwardsStephen J. McCulloughFrank C. Murray
    • Guy H. SuperSteven L. EdwardsStephen J. McCulloughFrank C. Murray
    • B31F1/16B31F1/07
    • D21H27/02A47K10/02B31F1/126B31F1/16D21F11/006D21H11/14D21H21/20D21H25/005D21H27/005D21H27/007D21H27/40Y10T428/24455
    • 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.
    • 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印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。
    • 10. 发明申请
    • Fabric Crepe And In Fabric Drying Process For Producing Absorbent Sheet
    • 织物绉纱和织物干燥过程生产吸收片
    • US20110155337A1
    • 2011-06-30
    • US13041706
    • 2011-03-07
    • Frank C. MurrayGreg A. WendtSteven L. EdwardsStephen J. McCulloughGuy H. Super
    • Frank C. MurrayGreg A. WendtSteven L. EdwardsStephen J. McCulloughGuy H. Super
    • B31F1/12
    • D21F11/14B31F1/126D21H25/005D21H27/002D21H27/005D21H27/008Y10T428/24446Y10T428/24455Y10T428/24479Y10T428/249965
    • 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.
    • 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。