Abstract:
A process for providing indicia and an elastic-like behavior to a web substrate is disclosed. The process comprises the steps of: providing a web substrate; printing indicia on the web substrate; and, providing the web substrate with a plurality of first regions and a plurality of second regions comprising the same material composition. A portion of the first regions extend in a first direction while the remainder of the first regions extend in a second direction perpendicular to the first direction to intersect one another. The first regions form a boundary completely surrounding the second regions. The second regions comprise a plurality of raised rib-like elements. The first regions undergo a molecular level and geometric deformation and the second regions initially undergo a substantially geometric deformation when the web material is subjected to an applied elongation along at least one axis.
Abstract:
The foil embossing device has an embossing unit (34) comprising at least two rollers (40, 41) at least one of which (40) is an embossing roller and is driven by a drive (5), at least the embossing roller having teeth (B) that project from the base cylinder for producing logos on the foil in a logo area (27) with teeth (39) that are different from the regularly arranged teeth (A) in order to produce a variable specific embossing pressure on the foil, the rollers having both axially and radially acting centering elements (4, 8) for centering the embossing roller (40) with respect to the other roller (41). It is thus possible to emboss logos in a substantially greater variety of designs and with higher accuracy than in the prior art and thus to achieve a sophisticated esthetic impression.
Abstract:
Methods for forming discrete deformations in web materials are disclosed. In some embodiments, the method involves feeding a web into an apparatus having nips that are formed between intermeshing rolls. The apparatus may be in the form of nested or other arrangements of multiple rolls, in which the web is maintained in substantial contact with at least one of the rolls throughout the process, and at least two of the rolls define two or more nips thereon with other rolls. In some embodiments, rolls can be used to expose a different side of the web for a subsequent deformation step. In these or other embodiments, the rolls can be used to transfer the web between rolls in such a manner that it may offset the rolls and/or web so that subsequent deformations are formed at a different cross-machine direction location than prior deformations.
Abstract:
Methods of mechanically deforming a material are disclosed. The methods of mechanically deforming a material involve using forming members that are moving at different surface speeds relative to each other to form deformed web materials.
Abstract:
An edge embosser for converting paper tissue, having three processing stations, two for engraving (1) and (2) and one for joining (3), between which there are continuous strips of ordinary paper, wherein (P1) is a lower or inner strip and (P2) is an upper or outer strip, so that they can both be embossed with any pattern in the two first stations (1) and (2), and then both are joined by their edges through station (3) forming a finished continuous strip of paper (P3); each engraving station (1 and 2) comprises a pair of rolls, one made of rubber (4A-4B) and the other of engraved steel (5A-5B), where the latter are pulled by the corresponding continuous inner and outer strip of paper (P1 or P2) passing between each pair and guided by casters (6, 7, 8 and 9); said joining station (3) is placed after the two engraving stations (1-2), and it also comprises two rollers, a wheel roller (10) and a pulled counter-wheel roller (11), between which the continuous strips of paper (P1 and P2) are aligned, so that they can be joined by their edges and, thus, said wheel roller (10) presents, along its length, various rings (12) mounted on O-rings (13), each ring constituting the protruding means for supplementary pressure and the realization of the fastening bands by mechanical lamination (F).
Abstract:
An article having an embossed seal includes at least two webs, and an embossed seal joining a portion of the at least two webs, the seal including co-registered concentric discrete extended elements formed in the at least two webs, the discrete extended elements having open proximal ends.
Abstract:
A process to mate a plurality of tissue webs includes in one embodiment providing first and second steel rolls and a second steel roll. The first steel roll has first protrusions, and the second steel roll has recesses. The embodiment includes forming a rotary nip between the first steel roll and the second steel roll, and advancing the plurality of tissue webs through the nip. The embodiment includes embossing first and second embossments into the plurality of tissue webs to connect the tissue webs to one another. The first protrusions press a first series of portions of the plurality of tissue webs into the recesses. The second embossments are created by one of pin-to-flat and pin-to-pin embossing. An apparatus suitable for carrying out the process is also disclosed.
Abstract:
The invention relates to a device for the treatment of packaging foils, comprising a first embossing unit having at least one embossing roll provided with embossing structures (7) that are arranged in a basic grid for satinizing and/or with embossing structures which deviate from the basic grid for the application of logos and/or of authentication features, the work cadence (A1) of the first embossing unit being synchronizable to a process cadence (P) of the packaging process, as well as a first regulating unit of the first embossing unit that is synchronizable to the process cadence (P) of the packaging installation, and a second regulating unit of the second embossing unit, the second regulating unit serving for the synchronization of the work cadence (A2) of the second embossing unit to the work cadence (A1) of the first embossing unit. To ensure a superior foldability of the packaging foil at a high process velocity during the subsequent packaging process, a subsequent second embossing unit is suggested which comprises at least one folding roll for applying folding breaks to the packaging foil.
Abstract:
A calendering roller used to manufacture textured nonwoven fabric including papermaking fibers is disclosed. The calendering roller includes a positive pattern that includes a basic element having a ring shape and a repetition of said basic element along multiple rows and columns substantially overall a peripheral surface of the calendaring roller. The ring defines an apex relatively to a center portion of the ring defining a cavity and a grinded surrounding zone. The ring includes at least one radial channel putting in communication the cavity and the grinded surrounding zone so as to define a discontinuous calendering surface. The repetition is regular except for multiple substantially longitudinally and transversally oriented regions. The regions are of limited size with respect to a calendering roller size and randomly distributed so as to define multiple random longitudinal and transverse lines in the textured nonwoven fabric including papermaking fibers, generating a cloth-like visual texture.
Abstract:
Apparatus for bonding at least two plies of fibrous web, includes: a first roller having an outer periphery, a plurality of embossing protuberances being provided on the outer periphery, such first roller being an embossing roller; and a second roller having an outer periphery and being elastic at least in a radial direction and together with the first roller forming a nip through which the at least two plies are be fed, such second roller being a counter roller or a marrying roller, wherein at least a part of the outer periphery of at least one of the first and the second roller is irregularly rough so that the at least two plies are bonded at discrete locations corresponding to at least some of the embossing protuberances. A multi-ply product including the bonded plies and a corresponding method are also described.