Methods of making a three-dimensional tissue
    1.
    发明授权
    Methods of making a three-dimensional tissue 有权
    制作三维组织的方法

    公开(公告)号:US06998017B2

    公开(公告)日:2006-02-14

    申请号:US10434599

    申请日:2003-05-09

    IPC分类号: D21F11/00

    摘要: An improved method for imprinting a paper web during a wet pressing event is disclosed which results in asymmetrical protrusions corresponding to the deflection conduits of a deflection member. In one embodiment, differential velocity transfer during a pressing event serves to improve the molding and imprinting of a web with a deflection member. Improved deflection members are also disclosed. Improved tissue webs produced are also disclosed having useful sets of physical and geometrical properties, such as a pattern densified network and a repeating pattern of protrusions having asymmetrical structures.

    摘要翻译: 公开了一种用于在湿压事件期间压印纸幅的改进方法,其导致对应于偏转构件的偏转导管的不对称突起。 在一个实施例中,挤压事件期间的差速传递用于改进带偏转构件的腹板的模制和压印。 还公开了改进的偏转构件。 还公开了改进的生产的组织网,其具有有用的物理和几何性质,例如图案致密网络和具有不对称结构的突起的重复图案。

    Creping process utilizing low temperature-curing adhesive
    7.
    发明授权
    Creping process utilizing low temperature-curing adhesive 有权
    使用低温固化胶粘剂的起皱工艺

    公开(公告)号:US06187140B1

    公开(公告)日:2001-02-13

    申请号:US09207319

    申请日:1998-12-07

    IPC分类号: B31F112

    摘要: A method of increasing the wet strength of a creped sheet, which method involves providing a sheet which includes cellulosic fibers, which sheet has a first side and a second side; applying a low temperature-curing latex adhesive binder composition to the first side of the sheet in a fine, spaced-apart pattern occupying from about 20 to about 50 percent of the surface area of the sheet; adhering the first side of the sheet to a creping surface; and creping the sheet from the creping surface. The binder composition is adapted to adhere the sheet to the creping surface and includes a functional group-containing latex, a functional group-reactive crosslinking agent, and a volatile base. In addition, the creping surface is heated at a temperature no greater than about 100° C. The low temperature-curing latex adhesive binder composition is adapted to have cured to a level, by the time the sheet is removed from the creping surface, which imparts to the creped sheet a cross-direction wet tensile strength which is at least about 50 percent that of an identical creped sheet which has been heated at about 150° C. for three minutes, in which the cross-direction wet tensile is tested in accordance with TAPPI Test Methods T494om-88 and T456om-87. In addition, the cross-direction wet tensile strength of the creped sheet is at least about 40 grams per centimeter.

    摘要翻译: 提高绉纹片的湿强度的方法,该方法包括提供包括纤维素纤维的片材,该片材具有第一面和第二面; 将低温固化的胶乳粘合剂组合物以细的间隔图案施加到片材的第一侧,占图案表面积的约20至约50%; 将片材的第一面粘附到起皱表面; 并从起皱表面起皱片材。 粘合剂组合物适于将片材粘附到起皱表面,并且包括含官能团的胶乳,官能团 - 反应性交联剂和挥发性碱。 此外,起皱表面在不高于约100℃的温度下加热。低温固化胶乳粘合剂粘合剂组合物适于在从起皱表面除去片材时固化至一定程度,其中 赋予绉纹片材横向湿拉伸强度,其至少约为在约150℃加热三分钟的相同的起皱片材的约50%,其中横向湿拉伸试验在 符合TAPPI测试方法T494om-88和T456M-87。 此外,绉纹片的横向湿拉伸强度至少为约40克/厘米。