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    • 4. 发明授权
    • Prewettable high softness paper product having temporary wet strength
    • 具有临时湿强度的可预湿高柔软性纸制品
    • US6059928A
    • 2000-05-09
    • US530489
    • 1995-09-18
    • Phuong Van LuuGary WorryRobert J. MarinackHenry S. OstrowskiDinesh M. Bhat
    • Phuong Van LuuGary WorryRobert J. MarinackHenry S. OstrowskiDinesh M. Bhat
    • D21F11/14D21H17/06D21H17/07D21H17/29D21H21/20D21H23/26D12H21/14
    • D21F11/14D21H21/20D21H23/26D21H17/06D21H17/07D21H17/29
    • 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.
    • 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。
    • 6. 发明申请
    • MULTI-PLY ABSORBENT PAPER PRODUCT HAVING IMPRESSED PATTERN
    • 具有凹版图案的多层吸收纸产品
    • US20060283538A1
    • 2006-12-21
    • US11465837
    • 2006-08-21
    • Galyn SchulzGary WorryKang YehThomas Kershaw
    • Galyn SchulzGary WorryKang YehThomas Kershaw
    • B31F1/07D21F11/00
    • B32B37/12B31F1/07B31F2201/0725B31F2201/0728B31F2201/0733B31F2201/0738B31F2201/0743B31F2201/0758B31F2201/0764B31F2201/0774B31F2201/0784B31F2201/0787B31F2201/0789B31F2201/0792B32B3/26B32B3/30B32B5/26B32B23/02B32B23/10B32B38/06B32B2262/062D21H27/002D21H27/02D21H27/32D21H27/40Y10T156/1023Y10T156/1039Y10T428/24463Y10T428/24562Y10T428/24612
    • A multi-ply tissue includes a first cellulosic embossed ply having an emboss pattern applied over a portion of its surface and a second cellulosic embossed ply of tissue. The first ply is contact laminated to the second ply so that the primary adhesion between the plies of tissue is the result of contact between cellulosic fibers. The first and second plies contact one another in contact-areas, with the contact areas between the first and second plies defining compliant voids. The contact areas between the first ply and the second ply are elongated and/or rounded contact areas. A method of forming a multi-ply tissue involves conveying a base sheet through a nip between an impression roll and a pattern roll to produce an embossed base sheet having a back side possessing projections, applying adhesive to the back side of the embossed base sheet at spaced apart locations, and applying a flat backing sheet to the back side of the embossed base sheet so that the backing sheet adheres to the back side of the embossed base sheet at said spaced apart locations. A method of producing an embossed tissue involves successively conveying a base sheet through a nip between a first impression roll and a pattern roll, and conveying the base sheet through another nip between the pattern roll and a second impression roll, wherein the second impression roll is made of rubber having a lower hardness than the rubber from which the first impression roll is made.
    • 多层组织包括具有施加在其表面的一部分上的压花图案的第一纤维素压纹层和第二纤维素压花的纸巾层。 第一层被层压到第二层上,使得组织层之间的主要粘附是纤维素纤维之间的接触的结果。 第一层和第二层在接触区域彼此接触,第一层和第二层之间的接触面定义合适的空隙。 第一层和第二层之间的接触区域是细长的和/或圆形的接触区域。 形成多层组织的方法涉及将基片材输送到压印辊和图案辊之间的辊隙,以产生具有背面具有凸起的压花基片,并将粘合剂施加到压花基片的背面 间隔开的位置,并且将平的背衬片施加到压花基片的背面,使得背衬片在所述间隔开的位置处粘附到压花基片的背面。 制造压纹组织的方法包括依次将基片通过第一压印辊和图案辊之间的辊隙传送,并且将基片通过图案辊和第二压印辊之间的另一个辊隙输送,其中第二压印辊 由比制成第一压印辊的橡胶硬度低的橡胶制成。