Patent classifications
B26F1/20
APPARATUS FOR PERFORATING A NONLINEAR LINE OF WEAKNESS
A perforating apparatus has a base having at least one counter component. The counter component has a length, L.sub.CC, and a nonlinear shape having a shape width, W. A support is operatively engaged with the base. A blade having a length, L.sub.B, is disposed on the support so as to cooperate in interacting relationship with the counter component. The blade has a plurality of teeth. A web material is perforated as it passes between the base and the support and the blade cooperates with the counter component. A driving means is associated with one of the support and the base to reciprocally shift the one of the support or the base for a distance, D, in a shifting direction. The distance, D, is at least the translational distance that one tooth travels to cover the shape width, W.
APPARATUS FOR PERFORATING A NONLINEAR LINE OF WEAKNESS
A perforating apparatus has a base having at least one counter component. The counter component has a length, L.sub.CC, and a nonlinear shape having a shape width, W. A support is operatively engaged with the base. A blade having a length, L.sub.B, is disposed on the support so as to cooperate in interacting relationship with the counter component. The blade has a plurality of teeth. A web material is perforated as it passes between the base and the support and the blade cooperates with the counter component. A driving means is associated with one of the support and the base to reciprocally shift the one of the support or the base for a distance, D, in a shifting direction. The distance, D, is at least the translational distance that one tooth travels to cover the shape width, W.
Method and apparatus for making an apertured web
A disposable absorbent having a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, is described herein. The topsheet is a two layer composite or laminate web having a first layer and a second layer. The composite or laminate has a first plurality of apertures and a second plurality of apertures, wherein the first plurality of apertures have sidewalls that extend in a first direction, wherein the second plurality of apertures have sidewalls that extend in second direction that is different than the first direction, and wherein the composite or laminate also includes a plurality of embossments which extend in a third direction opposite the first direction.
Method and apparatus for making an apertured web
A disposable absorbent having a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet, is described herein. The topsheet is a two layer composite or laminate web having a first layer and a second layer. The composite or laminate has a first plurality of apertures and a second plurality of apertures, wherein the first plurality of apertures have sidewalls that extend in a first direction, wherein the second plurality of apertures have sidewalls that extend in second direction that is different than the first direction, and wherein the composite or laminate also includes a plurality of embossments which extend in a third direction opposite the first direction.
A CUTTING TOOL, AND A METHOD FOR CUTTING A WEB OR SHEET OF MATERIAL
The present invention relates to a cutting tool (100) for providing holes in a core material layer (10). The cutting tool (100) comprises a cutting knife (110) having a cutting edge (112) configured to cut through the core material layer (10), and a support structure (120) onto which the cutting knife (110) is attached, wherein the support structure (120) is at least partly formed by an elastic material.
Method for making an apertured web
A method for making apertures in a precursor web using a forming apparatus is described herein. The precursor web comprises a film layer and a nonwoven layer having molecular orientation and the forming apparatus comprises an arrangement of teeth. The forming apparatus heats and stretches the precursor web forming apertures therein.
Method for making an apertured web
A method for making apertures in a precursor web using a forming apparatus is described herein. The precursor web comprises a film layer and a nonwoven layer having molecular orientation and the forming apparatus comprises an arrangement of teeth. The forming apparatus heats and stretches the precursor web forming apertures therein.
Plate for an anvil roll with a reduced-vacuum region for use in a slip and cut system and method of using the same
A plate configured to contact a web includes a first region having a first characteristic and a second region having a second characteristic different than the first characteristic. The plate has a substantially arcuate wall with an inner surface and an outer surface. A plurality of vacuum holes extends between the inner and outer surfaces and are configured to be in fluid communication with a vacuum source. A vacuum region is adapted to contact the first region of the web and a reduced-vacuum region is adapted to receive the second region of the web. The plurality of vacuum holes are configured such that, when attached to the vacuum source, a vacuum pressure at the vacuum region is greater than a pressure at the reduced-vacuum region so that the first region of the web is held against the plate with a greater force than the second region.
Plate for an anvil roll with a reduced-vacuum region for use in a slip and cut system and method of using the same
A plate configured to contact a web includes a first region having a first characteristic and a second region having a second characteristic different than the first characteristic. The plate has a substantially arcuate wall with an inner surface and an outer surface. A plurality of vacuum holes extends between the inner and outer surfaces and are configured to be in fluid communication with a vacuum source. A vacuum region is adapted to contact the first region of the web and a reduced-vacuum region is adapted to receive the second region of the web. The plurality of vacuum holes are configured such that, when attached to the vacuum source, a vacuum pressure at the vacuum region is greater than a pressure at the reduced-vacuum region so that the first region of the web is held against the plate with a greater force than the second region.
APPARATUS AND METHOD FOR CUTTING OR PERFORATING A PAPER WEB
An apparatus and a method for processing a digitally printed-on paper web, conveyed continuously through the apparatus includes a perforating tool for perforating the paper web transverse to its movement direction, and a cutting tool for cutting print sheets from a downstream end of the paper web. The tools are attached spaced-apart to a tool carrier which can be moved to two operating positions in which respectively one of the tools can be made to engage with a counter tool on a rotating cutting drum.