Prewettable high softness paper product having temporary wet strength
    1.
    发明授权
    Prewettable high softness paper product having temporary wet strength 失效
    具有临时湿强度的可预湿高柔软性纸制品

    公开(公告)号:US5958187A

    公开(公告)日:1999-09-28

    申请号:US893455

    申请日:1997-07-11

    摘要: A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or use in a manually pre-moistened condition. The paper product has temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 25 g/1" strip, preferably 35 g/1" strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet tensile strength of less than about 2/3 the initial value as measured 30 minutes after immersion. A temporary wet strength agent comprising aldehydic units in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the furnish. A cationic nitrogenous softener/debonder is preferably added to the furnish, in an amount of from about 1 pound per ton to about 6 pounds per ton. The CD dry tensile strength of the paper product is from at least about 133 g/1" up to about 267 g/1", and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.10. Preferably, the wet strength of the product decays with sufficient speed that the CD wet tensile strength drops to about 15 g/1" strip within 10 hours after immersion. When rubbed against a skin-like surface in a moistened condition, the paper product remains substantially free of pilling.

    摘要翻译: 纸制品和制造具有无光泽表面的纸制品的方法,其适用于干燥或用于手动预润湿状态。 纸产品具有临时湿强度,其表现出在浸渍后5秒通过Finch Cup测试测量的至少约25g / l“条,优选35g / l”条的初始标准化CD湿拉伸强度和随后的CD 湿拉伸强度小于约+ E,fra 2/3 + EE浸渍后30分钟测得的初始值。 将含有约2磅/吨至约30磅/吨范围的醛单元的临时湿强剂加入到配料中。 阳离子含氮软化剂/脱粘剂优选以约1磅/吨至约6磅/吨的量加入到配料中。 纸制品的CD干拉伸强度为至少约133g / l“至约267g / l”,拉伸模量为约10至约32g /%应变,而GM MMD摩擦 为约0.26至约0.10。 优选地,产物的湿强度以足够的速度衰变,使得CD浸湿后10小时内CD湿拉伸强度降至约15g / l“。 当在潮湿状态下与皮肤状的表面摩擦时,造纸产品基本上不起球。

    Prewettable high softness paper product having temporary wet strength
    2.
    发明授权
    Prewettable high softness paper product having temporary wet strength 失效
    具有临时湿强度的可预湿高柔软性纸制品

    公开(公告)号:US6059928A

    公开(公告)日:2000-05-09

    申请号:US530489

    申请日:1995-09-18

    摘要: A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or for use in a manually pre-moistened condition. The paper product having temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 75 g/3 inch strip, preferably 105 g/3 inch strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet strength of less than 1/2 as measured 10 minutes after immersion. A temporary wet strength agent comprising uncharged chemical moieties such as aldehydes, and aldehydes containing polymers, polyols and cyclic ureas or mixtures thereof in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the web. Optionally starch and a cationic nitrogenous softener/debonder is added. The starch and softener/debonder are added to assist in tailor making the desired paper product having temporary wet strength. The dry CD tensile strength of the paper product is from at least about 399 g/3 inches up to about 801 g/3 inches, and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.10. When rubbed against a skin-like surface in a moistened condition, the paper product remains substantially free of pilling.

    摘要翻译: 纸制品和制造具有无毛表面的纸制品的方法,适于干燥或用于手工预润湿状态。 具有临时湿强度的纸制品表现出至少约75g / 3英寸的条带,优选105g / 3英寸的条带的初始归一化CD湿拉伸强度,浸渍后5秒通过Finch Cup Test测量,随后的CD湿强度 小于+ E,fra 1/2 + EE,浸渍后10分钟测量。 将包含不带电荷的化学部分例如醛和含醛聚合物,多元醇和环脲或其混合物的临时湿强剂在约2磅/吨至约30磅/吨的范围内加入到该网中。 任选地加入淀粉和阳离子含氮软化剂/脱粘剂。 添加淀粉和软化剂/脱粘剂以帮助定制制备具有临时湿强度的所需纸制品。 纸制品的干CD拉伸强度为至少约399g / 3英寸至约801g / 3英寸,拉伸模量为约10至约32g /%应变,而GM MMD摩擦来自 约0.26至约0.10。 当在潮湿状态下与皮肤状的表面摩擦时,造纸产品基本上不起球。

    High uniformity foam forming
    3.
    发明授权
    High uniformity foam forming 失效
    高均匀泡沫成型

    公开(公告)号:US5200035A

    公开(公告)日:1993-04-06

    申请号:US825121

    申请日:1992-01-24

    IPC分类号: D21F11/00

    CPC分类号: D21F11/002 Y10S162/11

    摘要: A method of foam forming of paper includes the steps of metering a controlled feed of fiber dispersed in an aqueous liquid into a dewatering device, wherein the consistency of the fiber dispersed in the aqueous liquid input to the dewatering device is between about 0.5 and about 7% by weight. A uniform continuous strand of semi-moist pulp is obtained wherein the consistency of the semi-moist pulp leaving the dewatering device is between about 8 and 30% by weight. A stream of a foamed aqueous admixture is obtained and introduced into a dispersing mixer having shearing action extending substantially throughout a zone substantially athwart the flow path of the uniform continuous strand and the foamed aqueous stream and forming a stream of dispersed fiber bearing aqueous foam. The dispersed fiber bearing aqueous stream is conducted to the inlet of a positive displacement pump. Thereafter the dispersed fiber bearing stream is conducted through a headbox and the fibers dispersed in the stream are deposited on a moving foraminous support.

    Foam forming method and apparatus

    公开(公告)号:US06413368B1

    公开(公告)日:2002-07-02

    申请号:US08248543

    申请日:1994-05-24

    IPC分类号: D21F100

    CPC分类号: D21F11/002 Y10S162/11

    摘要: Apparatus and process for producing foam formed fibrous web in which the furnish is made up by mixing a thin water slurry of fibers at a consistency in the range of from about 0.5 to about 7 weight percent fibers with sufficient aqueous foam containing a surfactant and having an air content in the range of from about 55 to about 80 percent by volume to form a foamed fiber furnish containing from about 0.1 to about 3 weight percent fibers which is supplied directly to the forming felt or wire of a twin wire papermaking machine, adding makeup surfactant and discarding excess aqueous foam from the process as required to maintain the desired volume of foamed liquid therein.

    High softness embossed tissue
    6.
    发明授权
    High softness embossed tissue 失效
    高度柔软的压纹纸巾

    公开(公告)号:US5409572A

    公开(公告)日:1995-04-25

    申请号:US226118

    申请日:1994-04-11

    IPC分类号: D21F11/00 D21H25/00 D21H27/02

    CPC分类号: D21H25/005 D21F11/002

    摘要: A single or multi-ply tissue product includes at least one foam-formed ply incorporating at least about 100 ppm of forming-loop-incorporated surfactant, the ply includes from at least about 50% by weight to about 80% by weight of relatively short, high softness cellulosic fiber formed by chemical pulping of hardwood. The fibers have a weight average fiber length of between about 0.5 to about 2.2 mm, a coarseness of about 7 to about 14 mg of fiber per 100 m of fiber length (mg/100 m). The ply includes from at least about 20% by weight to about 50% by weight of relatively long strength-enhancing cellulosic fiber chosen from chemically pulped softwood fiber and chemi-thermo-mechanically pulped softwood fiber and mixtures thereof. The strength-enhancing cellulosic fiber have a weight average fiber length of about 2 to about 4 mm, a coarseness of about 14 to about 28 mg/100 m. Optionally, up to about 30% by weight of bulk-enhancing fibers having a three-dimensional anfractuous character may be provided. The ply is embossed to an emboss depth of at least about 0.020 inch, the percent loss in total dry breaking tensile strength upon embossing of the tissue being no more than about 80% of the percent loss in total dry breaking tensile strength upon embossing plies of a comparable conventional water formed tissue. The ply includes a basis weight of from about 4 to about 20 pound per 3,000 sq. ft. ream.

    摘要翻译: 单层或多层组织产品包括至少一个引入至少约100ppm成形环引入的表面活性剂的泡沫形成层,所述帘布层包含至少约50重量%至约80重量%的较短 通过硬木化学制浆形成的高柔软度的纤维素纤维。 纤维的重均纤维长度在约0.5至约2.2mm之间,每100m纤维长度(mg / 100m)为约7至约14mg纤维的粗糙度。 所述帘布层包括至少约20重量%至约50重量%的选自化学制浆的软木纤维和化学热机械制浆的软木纤维及其混合物的相对较长的强度增强纤维素纤维。 强度增强纤维素纤维具有约2至约4mm的重均纤维长度,约14至约28mg /100μm的粗糙度。 任选地,可以提供高达约30重量%的具有三维不均匀性的体增强纤维。 层压制成至少约0.020英寸的压花深度,压花时组织的总干断裂拉伸强度的百分比损失不超过压花层的总干断裂抗拉强度的百分比损失百分之百 可比较的常规水形成组织。 该层的基重为每平方英尺约4至约20磅。

    Resilient, water dispersible polyurethane foams and products incorporating same
    7.
    发明授权
    Resilient, water dispersible polyurethane foams and products incorporating same 有权
    弹性,水分散性聚氨酯泡沫和与其结合的产品

    公开(公告)号:US08404348B2

    公开(公告)日:2013-03-26

    申请号:US13421318

    申请日:2012-03-15

    IPC分类号: B32B27/40

    摘要: A soft and resilient, cold-water dispersible polyurethane foam suitable for disposable personal care products is produced by the combination of corn syrup, glycerin, polyether diamine, PEG, a diisocyanate, water and a catalyst. The formulation and reaction conditions for forming the inventive foam are judiciously selected and carefully controlled to achieve water dispersibility and the desired mechanical properties. The characteristic resiliency, or percent rebound for the foams was generally over 75% and the foams are readily produced as soft foams, exhibiting a relative compression value of from 20% to 150% of that of a commercial polyurethane foam cosmetic pad which is not water dispersible. The foam may be incorporated into webs or stackable products or nestable three-dimensional products.

    摘要翻译: 通过玉米糖浆,甘油,聚醚二胺,PEG,二异氰酸酯,水和催化剂的组合生产适合于一次性个人护理产品的柔软且有弹性的冷水分散聚氨酯泡沫。 用于形成本发明泡沫的配方和反应条件被明智地选择和仔细地控制以实现水分散性和所需的机械性能。 泡沫的特征弹性或回弹百分比通常超过75%,并且泡沫容易地作为软泡沫生产,显示相对压缩值为不是水的商业聚氨酯泡沫化妆品垫的相对压缩值的20%至150% 可分散 泡沫可以结合到网或可堆叠产品或可嵌套的三维产品中。

    Recovery of surfactant from papermaking process
    9.
    发明授权
    Recovery of surfactant from papermaking process 失效
    从造纸过程中回收表面活性剂

    公开(公告)号:US06287417B1

    公开(公告)日:2001-09-11

    申请号:US07807750

    申请日:1991-12-17

    申请人: Dinesh M. Bhat

    发明人: Dinesh M. Bhat

    IPC分类号: D21F100

    摘要: A method and apparatus for recovery of surfactant from a foamable liquid aqueous solution thereof wherein foamable liquid containing surfactant is sparged with air or gas forming foam enriched in surfactant and residual liquid depleted in surfactant, foam enriched in surfactant is separated from residual liquid and resolved into foamable liquid enriched in surfactant by separation of gas or air therefrom.

    摘要翻译: 从其可发泡液体水溶液中回收表面活性剂的方法和装置,其中含有表面活性剂的发泡性液体用富含表面活性剂的空气或气体形成泡沫和表面活性剂中残留的液体喷射,富含表面活性剂的泡沫与残余液体分离并分解成 通过从其中分离气体或空气而富含表面活性剂的可发泡液体。