Abstract:
A sheet material including a strainable network formed in the surface of the sheet material. The strainable network includes first network areas and second network areas, the first network areas substantially surrounding the second network areas. The second network areas include geometrically deformable elements, and the first network areas define substantially unformed portions of the sheet material surrounding the second network areas. The deformable elements are geometrically deformable in plural directions generally parallel to the plane of the sheet material to provide the sheet material with a stretchable elastic-like characteristic in response to elongation forces applied to the sheet material in plural directions.
Abstract:
A method of embossing an absorbent web with a machine direction undulatory structure is described. The web has a plurality of ridges extending in its machine direction occurring at a frequency, F, across the web and the method includes providing the web to an embossing station where the web is embossed between a first and second embossing roll, each of which rolls may be provided with a plurality of embossing elements configured to define a plurality of embossing nips. At least a portion of the embossing nips are substantially oriented in a cross-machine direction with respect to the web and have a cross direction length, L. The product F×L is from about 0.1 to about 5.
Abstract:
The apparatus for satin-finishing and embossing flat material comprises a first toothed roller and at least a second toothed roller, with the rollers being disposed in such a way that a tooth each of a roller engages between four teeth of the other roller. One of the rollers comprises at least a microstructure and the other roller is provided at the respective place with a counter-pressure surface. The microstructure is applied to a hard surface layer which is applied via an intermediate layer to the roller surface. The method is especially advantageous if a film with a thermoplastic intermediate layer is used. Such an apparatus allows embossing logos with microstructures at all desired locations of the rollers, thus offering a high amount of security against falsification and a large variety of design features.
Abstract:
An apparatus and process (20) for forming an embossed web or other article can include moving a target, composite web (26) along an appointed machine-direction (22) at a selected web speed, and operatively contacting the target web (26) with a rotary embossing device (38) to thereby form a non-linear embossment region (82) in at least a selected embossment portion of the target web (26). For example, the web speed can be at least a minimum of about 1.9 m/sec. In a particular aspect, the embossing device (38) can include an outer peripheral surface (42) having a lateral cross-direction (24) and a circumferential-direction (40), and can include a non-linear embossing member (44) located on the outer surface (42). In another aspect, the embossing member (44) can be configured to include a selected traversing occurrence along the circumferential-direction (40) of the embossing device (38). In a further aspect, the embossing member (44) can be configured to include a selected lateral traversing distance (50).
Abstract:
Embossed and rolled tissue products are disclosed. In particular, an embossing pattern is used that enhances the softness and bulk of a tissue product without a substantial degradation in strength. The embossing patterns of the present invention are particularly well suited for use with bath tissues and with webs that have not been through-air dried. The web can be, for instance, a wet-pressed web that has been creped.
Abstract:
A paper web of the present invention has a longitudinal centerline and a transverse centerline, and comprises a plurality of first regions and a plurality of second regions. The first regions form boundaries separating the second regions, the first regions being substantially in a plane of the paper web. The second regions comprise a plurality of raised out-of-said-plane rib-like elements, the rib-like elements of each second region being disposed parallel to a major rib axis and perpendicular to a minor rib axis. All or most of each first regions have both major rib axis and minor rib axis components. The first and second regions undergo geometric deformation when the web material is subjected to an applied elongation along at least one axis. A method of the present invention comprises the steps of providing a cellulosic substrate; providing a first platen comprising toothed regions and untoothed regions; providing a second platen comprising toothed regions, the second platen being aligned with the first platen such that the toothed regions of the first and second platens mesh when operably engaged; and pressing the cellulosic substrate between the first platen and the second platen such that the toothed regions deform said web to form regions of discrete fan-folded rib-like elements. Optionally, the cellulosic substrate can be moistened prior to the pressing step.
Abstract:
The invention relates to embossing multi-ply paper products, for example, paper towels, tissue and napkins, in which an improved embossing arrangement is used which is particularly suitable for paper products which have been processed so as to impart undulations whose axes extend in a principal undulatory direction, typically in the machine direction. The absorbent sheet typically further includes undulations which extend in the cross (transverse direction) of the web such that the absorbent sheet has a biaxially undulatory structure. The undulations may be formed by the use of an undulatory creping blade. Defined parameters accommodate: the distance at which the undulations are spaced, the total surface area of the design (embossing) elements, the width and length of the embossing elements and the aspect ratio of the elements, as well as the angular orientation of the embossing elements with respect to the undulations.
Abstract:
The subject matter of the invention is an embossing press, including an embossing roller and a counter cylinder, for producing embossed seams by joining at least two paper layers or fleece layers, arranged one above the other and conveyed in a straight line. For this, the embossed seams extend at a slant or at a right angle relative to the conveying direction of the paper layers or fleece layers. The embossing roller according to the invention is provided with at least two rows of embossing teeth, arranged at a distance to each other, and the counter cylinder is designed as fluted roller, at least in the area effective for the embossing operation. For an equivalent embodiment of the invention, the embossing roller is provided with one row of embossing teeth, for which the total width corresponds at least to the total width of the embossed seams that can be produced during the embossing operation and the counter cylinder is designed as fluted roller, at least in the region of the embossing operation. For this embodiment, the ridged areas in the embossed region are interrupted by at least one groove that matches the non-embossed separating zone desired between the individual embossing seams that can be produced.
Abstract:
A laminate having two or more plies. The plies are embossed, and adhesively joined together. The adhesive forms an essentially continuous network. The essentially continuous network increases the strength of adhesive, increases the strength of the laminate, and is disposed within the X-Y plane of the laminate coincident the embossments.
Abstract:
Rolled creped paper products, such as kitchen towels, can be provided with high roll bulk and a high degree of roll firmness by steaming the dry, creped paper sheet immediately prior to embossing the sheet between matched steel embossing rolls. The steaming preconditions the sheet such that the resulting sheet embossments maintain their shape and structural strength, thereby imparting greater bulk and firmness to the wound roll of product. In addition, the sheet experiences less cross-machine strength reduction as a consequence of the embossing.