Three-dimensional, amorphous-patterned, nesting-resistant sheet
materials and method and apparatus for making same

    公开(公告)号:US5965235A

    公开(公告)日:1999-10-12

    申请号:US745339

    申请日:1996-11-08

    Abstract: The present invention relates three-dimensional sheet materials which resist nesting of superimposed layers into one another. More particularly, the present invention provides a three-dimensional, nesting-resistant sheet material having a first side and a second side. The first side comprises at least one region having a plurality of spaced three-dimensional protrusions extending outwardly from the first side which are preferably unitarily formed from the sheet material. To provide the nesting-resistant advantages of the present invention, the protrusions form an amorphous pattern of a plurality of different two-dimensional geometrical shapes. Preferably, the second side comprises a plurality of spaced, three-dimensional hollow depressions corresponding to the protrusions, such that the protrusions are hollow. Of particular interest for certain applications, such as a carrier for an adhesive, the protrusions are separated by an interconnected network of three-dimensional spaces between adjacent protrusions. The three-dimensional, nesting-resistant sheet materials are preferably manufactured in accordance with the present invention utilizing a three-dimensional forming structure comprising an amorphous pattern of spaced three-dimensional recesses separated by interconnected lands. The recesses form an amorphous two-dimensional pattern of interlocking two-dimensional geometrical shapes. The amorphous pattern of interlocking shapes is preferably derived from a constrained Voronoi tessellation of 2-space in accordance with the present invention, wherein the tessellation is constrained by a constraint factor which controls the range of permissible center-to-center spacing of the interlocking shapes. To manufacture the three-dimensional, nesting-resistant sheet materials in accordance with the present invention, a sheet of deformable material is introduced onto the forming structure and permanently deformed into compliance with the forming structure. If desired, the interconnected lands of the forming structure may be coated.

    Multi-layer sheet of absorbent paper and its manufacturing method
    173.
    发明授权
    Multi-layer sheet of absorbent paper and its manufacturing method 失效
    多层吸收纸及其制造方法

    公开(公告)号:US5846636A

    公开(公告)日:1998-12-08

    申请号:US750568

    申请日:1997-01-14

    Abstract: An absorbent multi-layer sheet, with at least two layers each constituted of at least one embossed ply of creped absorbent paper having a specific surface weight between 10 and 40 g/m.sup.2 per ply, with an external surface forming the outer side of the multi-layer sheet and an inner surface, the inner surface of the first layer including first and second protrusions and the inner surface of the second layer including third protrusions nested between the-protrusions of the first layer, the two layers being bonded together by at least part of the protrusion tips of one layer adhesively joined to the other layer between two protrusions, is characterized in that the bonding is implemented by the first protrusions of the first layer, the second protrusions having a lesser height than the first ones and their tips being adhesive-free.

    Abstract translation: PCT No.PCT / FR95 / 00786 Sec。 371日期1997年1月14日 102(e)日期1997年1月14日PCT归档1995年6月15日PCT公布。 出版物WO95 / 35205 日期1995年12月28日一种吸收性多层片材,其至少两层由至少一层皱褶吸收纸的压花层构成,每层具有10至40g / m 2的比表面积,外表面形成 多层片的外侧和内表面,第一层的内表面包括第一和第二突起,第二层的内表面包括嵌在第一层的突起之间的第三突起,两层是 通过在两个突起之间粘合地连接到另一层的一层的突起末端的至少一部分结合在一起,其特征在于,通过第一层的第一突起实现接合,第二突起具有比第一突起更小的高度 一些和他们的提示是无粘性的。

    Absorbent combined sheet matierial
    174.
    发明授权
    Absorbent combined sheet matierial 失效
    吸收组合材料

    公开(公告)号:US5173351A

    公开(公告)日:1992-12-22

    申请号:US605346

    申请日:1990-10-30

    Abstract: A combined sheet material including at least two absorbent sheets, such as of cellulose-cotton, each having a density of between from 10 to 40 g/m.sup.2. Each of the sheets is separately embossed by calendaring them into a pattern of protuberances distributed in a first pitch along a first direction for each sheet (P.sub.1 sm, P.sub.2 sm) and in a second pitch in a second direction for each sheet (P.sub.1 st, P.sub.2 st) which subtends the first direction at an angle other than zero. The end of the protuberances extending away from the plane of each of the sheets includes a flat bonding element whereby the two sheets are bonded to each other, preferably by gluing. The pattern of each of the sheets is characterized in that the first pitch of each sheet along the first direction is different and related by the equation..vertline.1/P.sub.1 sm-1/P.sub.2 sm.vertline..gtoreq.1/L1wherein L1 is a predetermined value corresponding to the dimension of a segment within the combined sheet material in which at least one spot capable of bonding the two sheets together is present regardless of the relative position of the two patterns.

    Abstract translation: 包括至少两个吸收片材(例如纤维素棉)的组合片材,其密度为10至40g / m 2。 通过每个片材(P1sm,P2sm)沿着第一方向以第一间距分布在每个片材(P1st,P2st)上的第二节距的第二节距(P1st,P2st)中,将每个片材分别压印成沿着第一方向分布的突起图案, 以不同于零的角度对准第一方向。 从每个片材的平面延伸的突起的端部包括平坦的接合元件,由此两个片材优选通过胶合彼此接合。 每个片材的图案的特征在于,沿着第一方向的每个片材的第一间距是不同的并且通过等式相关联。 | 1 / P1sm-1 / P2sm|> / = 1 / L1其中L1是对应于组合的片材中的段的尺寸的预定值,其中至少一个能够将两个片粘合在一起的光点不管 两种模式的相对位置。

    Pattern bonding and creping of fibrous substrates to form laminated
products
    176.
    发明授权
    Pattern bonding and creping of fibrous substrates to form laminated products 失效
    图案粘结和起皱纤维基材以形成层压制品

    公开(公告)号:US4610743A

    公开(公告)日:1986-09-09

    申请号:US421712

    申请日:1982-09-22

    Abstract: Two or more webs (11 and 12) of highly bulked substrate are passed into a nip formed between a gravure roller (14) and an impression roller (15). The impression roller has raised areas defining an interconnected network of lines such that the webs are compressed only under the raised areas; as a result, the binding liquid applied by the gravure roller (14) to the laminate of the two webs is absorbed substantially through the webs in the compressed areas. The gravure roller (14) may have a uniform surface, such that a light coating of binding liquid is applied to the surface of the uncompressed areas in the laminate, or the gravure roller may have a pattern of etched grooves or cells which matches and registers with the pattern of raised areas on the impression roller. In the latter embodiment, binding liquid will be absorbed into the laminate only in the compressed areas. The coated laminate (21) is applied to the surface (24) of a creping cylinder (25), is dried thereon, and is creped off with a creping blade (27) to form a laminated product bound together by an interconnected network of lines of strength extending through the laminate. The areas between the lines of strength are not compressed and are not substantially coated with binding liquid, and thereby retain high bulk and absorbency. In a modified embodiment of the invention, a single impression/pressure roller and raised areas thereon is used to join and press the webs against a gravure roller and to apply the webs to a creping cylinder; and in a second modified embodiment, the web laminate is pressed and coated on one side, is substantially hot air dried without compression, is coated with binding liquid applied to the outer side, and is then applied to the creped from a creping cylinder.

    Abstract translation: 两个或多个高度膨胀的基底的网(11和12)进入形成在凹版辊(14)和压印辊(15)之间的辊隙中。 压印辊具有限定相互连接的线路网的凸起区域,使得腹板仅在凸起区域下方被压缩; 结果,由凹版辊(14)施加到两个网的层压体上的粘合液体基本上被压缩区域中的腹板吸收。 凹版辊(14)可以具有均匀的表面,使得粘结液体的轻涂层被施加到层压体中的未压缩区域的表面,或者凹版辊可以具有蚀刻的凹槽或细胞的图案,其匹配和记录 在压印辊上具有凸起区域的图案。 在后一实施例中,粘合液体将仅在压缩区域中被吸收到层压体中。 将涂覆的层压体(21)施加到起皱圆筒(25)的表面(24)上,在其上干燥,并用起皱刀片(27)起皱,以形成通过互连的线路网络结合在一起的层压产品 的强度延伸穿过层压板。 强度线之间的区域不被压缩,并且基本上不涂布粘合液体,从而保持高的体积和吸收性。 在本发明的改进的实施例中,使用单个印模/压力辊和其上的凸起区域将所述腹板接合并压靠在凹版辊上并将腹板施加到起皱圆筒; 并且在第二改进实施例中,将纤维网层压材料压制并涂覆在一侧,基本上热风干燥而不压缩,涂覆有施加到外侧的粘合液体,然后从起皱圆筒施加到起皱。

    Relieved patterned marrying roll
    177.
    发明授权
    Relieved patterned marrying roll 失效
    缓解图案结婚卷

    公开(公告)号:US4483728A

    公开(公告)日:1984-11-20

    申请号:US168748

    申请日:1980-07-14

    Abstract: A patterned marrying roll especially adapted to combined multiple plies of a tissue sheet at a nip between the marrying roll and an embossing roll. The marrying roll is provided with a pattern of raised laminating elements covering a predetermined percentage of the marrying roll surface which are caused to bear against the raised embossing elements of an embossing roll with the plies of a pillowed tissue sheet therebetween. The pattern of raised elements on the marrying roll surface may be in the form of dots, a recticular grid pattern, or any other pattern of choice. The pattern is preferably aligned at an angle to the machine direction to eliminate bunching or puckering of the tissue sheet between pattern elements. The pattern on the marrying roll may comprise from approximately 10% to approximately 40% of the marrying roll surface. The invention is intended primarily for use in laminating plies of a "pillowed" cellulose sheet together, but may also be advantageously used in the lamination of "nested" sheet plies.

    Abstract translation: 图案化的结合辊特别适用于在结合辊和压花辊之间的辊隙处组合多个纸巾片层。 嫁接辊设置有覆盖预定百分比的嫁接辊表面的升高的层压元件的图案,其被压在压花辊的凸起压花元件上,其间具有一个枕头的纸板。 结婚辊表面上的凸起元件的图案可以是点,直角网格图案或任何其他选择图案的形式。 该图案优选地与机器方向成一定角度排列,以消除图案元件之间的组织片的聚束或褶皱。 嫁接辊上的图案可以包括约10%至约40%的嫁接辊表面。 本发明主要用于将“枕头”纤维素片层叠在一起,但也可有利地用于层叠“嵌套”片层。

Patent Agency Ranking