-
61.发明授权
公开(公告)号：US5245025A
公开(公告)日：1993-09-14
申请号：US722792
申请日：1991-06-28
申请人： Paul D. Trokhan , Dean Van Phan , Larry L. Huston
发明人： Paul D. Trokhan , Dean Van Phan , Larry L. Huston
CPC分类号： D21F11/006 , D21H27/02 , Y10S162/903
摘要： Disclosed herein is a cellulosic fibrous structure having multiple regions distinguished from one another by basis weight. The structure is a paper having an essentially continuous high basis weight network, and discrete regions of low basis weight which circumscribe discrete regions of intermediate basis weight. The cellulosic fibers forming the low basis weight regions may be radially oriented relative to the centers of the regions. The paper may be formed by using a forming belt having zones with different flow resistances. The basis weight of a region of the paper is generally inversely proportional to the flow resistance of the zone of the forming belt, upon which such region was formed. The zones of different flow resistances provide for selectively draining a liquid carrier having suspended cellulosic fibers through the different zones of the forming belt.
摘要翻译： 本文公开了具有通过基重彼此区分的多个区域的纤维素纤维结构。 该结构是具有基本上连续的高基重网络的纸，以及低基重的离散区域，其限制了中间基重的离散区域。 形成低基重区域的纤维素纤维可以相对于区域的中心径向定向。 纸可以通过使用具有不同流阻的区域的成形带来形成。 纸张的区域的基重通常与形成该区域的成形带的区域的流动阻力成反比。 不同流动阻力的区域提供选择性排出具有悬浮的纤维素纤维的液体载体穿过成形带的不同区域。
-
公开(公告)号：US4528239A
公开(公告)日：1985-07-09
申请号：US525585
申请日：1983-08-23
申请人： Paul D. Trokhan
发明人： Paul D. Trokhan
CPC分类号： D21F1/0036 , D21F11/006 , Y10T428/24273 , Y10T442/155
摘要： Foraminous members useful in making paper webs. The foraminous member of this invention has a macroscopically monoplanar, patterned, continuous network surface which serves to define within the member a plurality of discrete, isolated, deflection conduits. A foraminous woven element, such as a screen, is thoroughly coated with liquid photosensitive resin to a controlled depth above the upper surface of the woven element. A mask or a negative having opaque and transparent regions which define the pattern is brought into contact with the surface of the liquid photosensitive resin and the resin is exposed to light of an activating wavelength through the mask. The resin exposed to the activating light is hardened (cured). Uncured resin is removed from the composite leaving behind the woven element with the solid network formed by the cured resin.
摘要翻译： 用于制作纸幅的有孔成员。 本发明的多孔构件具有宏观单平面，图案化的连续网络表面，其用于在构件内限定多个离散的，隔离的偏转导管。 将多孔编织元件如筛网用液体光敏树脂彻底地涂覆到编织元件上表面上方的受控深度。 限定图案的具有不透明和透明区域的掩模或负片与液体光敏树脂的表面接触，并且树脂通过掩模暴露于活化波长的光。 暴露于活化光的树脂硬化（固化）。 将未固化的树脂从复合材料中除去，并由固化树脂形成的固体网络留下织造元件。
-
公开(公告)号：US4469735A
公开(公告)日：1984-09-04
申请号：US358544
申请日：1982-03-15
申请人： Paul D. Trokhan
发明人： Paul D. Trokhan
CPC分类号： B31F1/07 , A47L13/16 , B32B29/00 , D21H27/40 , B31F2201/0733 , B31F2201/0738 , B31F2201/0761 , Y10T428/24463 , Y10T428/24802 , Y10T428/24826 , Y10T428/24942
摘要： An extensible multi-ply tissue paper product having high tensile energy absorption (TEA); high liquid absorbency; and, preferably, high tensile strength efficiency. The product comprises plies which are preferably embossed and discontinuously adhered together. The product has high tensile energy absorption by virtue of having substantial extensibility in the machine direction which, preferably, results from its constituent plies having substantial MD extensibility induced by having undergone wet and/or dry foreshortening during their manufacture. The product has synergistically high liquid absorbency by virtue of at least two plies of the product having sufficiently different stress/strain properties that one ply will sufficiently constrain unadhered portions of the other ply from being elongated in the plane of the paper when wetted that such unadhered portions of the constrained ply will pucker in the Z-direction as its foreshortening-induced internal stresses are relieved. Preferably, the constraining ply is high bulk, wet-microcontracted tissue paper, and the other ply is dry-foreshortened tissue paper: e.g., dry-creped tissue paper. Also, the plies of preferred embodiments preferably have nominally equal MD extensibilities at rupture. Such preferred products have high tensile strength efficiency which is manifested by their having monomodal stress/strain characters. Embodiments of the invention such as two and three ply paper towels are especially useful for spill wipe-up applications.
摘要翻译： 具有高拉伸能吸收性（TEA）的可伸缩多层纸巾产品; 高吸液性; 并且优选具有高拉伸强度效率。 该产品包括优选压花且不连续粘合在一起的层。 该产品具有高的拉伸能量吸收性，因为在机器方向上具有显着的延展性，优选地，其由其制造中经过湿和/或干缩缩而引起的具有实质MD延展性的构成层产生。 由于至少两层产品具有足够不同的应力/应变特性，所以产品具有协同的高吸液性，使得一层可以充分地约束另一层的未粘附部分，使其在纸张的平面处被拉长时， 约束层的一部分将在Z方向收缩，因为它的缩短引起的内应力被释放。 优选地，约束层是高体积的，湿 - 微胶囊的薄纸，而另一层是干式缩短的薄纸：例如干绉纸巾。 此外，优选实施方案的层优选在破裂时具有名义上相等的MD扩展性。 这些优选的产品具有高拉伸强度效率，这表现为它们具有单峰应力/应变特性。 本发明的实施例如两层和三层纸巾对于溢出擦拭应用尤其有用。
-
公开(公告)号：US4225382A
公开(公告)日：1980-09-30
申请号：US41846
申请日：1979-05-24
CPC分类号： D21F11/145 , D21F1/0027 , D21F1/02 , D21F1/028 , D21F11/006 , D21F11/04 , D21F11/14
摘要： An improved process to produce a novel tissue which becomes ply-separable during the papermaking process. In a first embodiment of the invention a two-layered stratified web is formed, having a first layer comprised of a relatively low consistency slurry of long papermaking fibers and a second layer comprised of a high consistency slurry of relatively short papermaking fibers. In a second embodiment of the invention, a stratified web having three layers is formed, comprised of well-bonded layers separated by an interior barrier layer. These improved tissue products need not be creped from a creping roll with a doctor blade in order to exhibit ply-separability, and they may be creped in a single step to form a finished product which is creped all the way through.
摘要翻译： 一种改进的方法来生产在造纸过程中变得可分离的新型组织。 在本发明的第一个实施方案中，形成了一个双层分层织物，其具有由较长造纸纤维的相对低的稠度浆料构成的第一层和由相对短的造纸纤维的高浓度浆料组成的第二层。 在本发明的第二实施例中，形成了具有三层的分层网，其由通过内部阻挡层隔开的良好结合的层组成。 这些改进的纸巾产品不需要用具有刮刀的起皱辊起皱，以便具有层间分离性，并且它们可以在一个步骤中起皱以形成整齐地起皱的成品。
-
公开(公告)号：US4191609A
公开(公告)日：1980-03-04
申请号：US19038
申请日：1979-03-09
申请人： Paul D. Trokhan
发明人： Paul D. Trokhan
CPC分类号： D21H25/005 , D21F11/006
摘要： Wet-laid paper having, when creped, improved bulk, softness, and flexibility; a relatively large cross-machine-direction to machine-direction stretch ratio; and improved burst to total tensile strength ratio. The paper is characterized by an array of uncompressed zones which are in staggered relation in both the machine direction and the cross-machine direction; and by having each uncompressed zone defined by a picket-like discontinuous lineament of compacted fibrous material. The invention also includes a process for making the paper through the use of an imprinting fabric which is configured to precipitate the requisite compacting of the picket-like lineaments prior to final drying and creping of the paper.
摘要翻译： 当起皱时，湿纸成型纸具有改善的松散度，柔软度和柔韧性; 横向机器方向相对较大的纵向拉伸比; 并提高爆破与总抗拉强度比。 该纸的特征在于在机器方向和跨机器方向上具有交错关系的未压缩区域的阵列; 并且通过使每个未压缩区域由压实的纤维材料的桩状不连续线段限定。 本发明还包括一种通过使用压印织物来制造纸的方法，所述压印织物被配置为在纸的最终干燥和起皱之前沉淀所述桩状线的必要压实。
-
-
-
-
搜索结果
65 条记录 (耗时 0.029 秒)
