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:
A process for making continuous stretchable substrate products comprising the steps of supplying a web of stretchable substrate having a first surface and a second surface, embossing at least one of the surfaces of the web substrate with an embossed image using at least one embossing roller, printing at least one of the surfaces of the web substrate with a printed image using at least one printing roller; wherein the embossed image and the printed image are disposed onto the substrate relative to each other such that a print/emboss registration is created, measuring the angular location of one embossing roller and translating that location into a digital signal, measuring the angular location of one printing roller and translating that location into a digital signal, manually zeroing the print/emboss registration; and automatically controlling the print and emboss rolls to maintain registration using a control program that comprises the steps of i) comparing the digital signal from the embossing roller and the digital signal from the printing roller, and ii) correcting the angular location and angular speed of either the embossing roller or the printing roller.
Abstract:
Disclosed is an embossing method and material made by the method, including at least a pair of embossing rolls having unmatched embossing patterns engraved independently from each other, and having enlarged sidewall clearances between adjacent, inter-engaged protrusions and recessions of the embossing patterns. The sidewall clearances can range from about 0.002null (about 0.050 mm) to about 0.050null (about 1.27 mm). The width of the protrusions can be greater than about 0.002null or about 0.050 mm. The peripheral surface of at least one of the embossing rolls can comprise a metal, a plastic, a ceramic, or a rubber. Also disclosed is an embossed web material capable of being used as a wrap material for food products, made by the above process.
Abstract:
An embossing system is provided for embossing a web having a first embossing roll having embossing elements and a second embossing roll having embossing elements, wherein at least a portion of the embossing elements of the first and second embossing rolls are substantially oriented in the cross-machine direction. The embossing roll may be crowned, may have alignment means, and may be provided with precision gearing.
Abstract:
A multi-layered paper product that has bridging regions for inhibiting nesting is provided. For example, the paper product can contain a first and second layer that define ridges and valleys. Bridging regions are formed into at least one of the outer surfaces of the layers. In particular, the bridging regions are positioned at an angle of between about 0null to about 180null relative to the ridges and also have a length sufficient to extend between the peaks of at least two of the ridges. The bridging regions can be formed in a variety of ways, such as with an embossing roll that contains embossing elements. Moreover, the bridging regions can also have a variety of shapes, sizes, orientations, and/or patterns.
Abstract:
The invention relates to a device for producing different hole patterns in sheet-shaped print materials. An apparatus and process for producing different hole patterns in a sheet-shaped print material is provided wherein a punch in a tool roller is raised and lowered relative to an outer surface of the tool roller in order to effectuate and ineffectuate, respectively, punching by the punch. According to a preferred embodiment, a die roller is provided having a die corresponding with the punch, and sheets are fed through the tool roller and the die roller. In one embodiment punches and dies are provided, and the punches are selectively raised and lowered in order to achieve a desired hole pattern in the sheet.
Abstract:
The invention relates to a devices and apparatus for processing of sheet-shaped print materials, for example cutting. An apparatus and process for on-the-fly cutting of sheet-shaped print material is provided wherein sheet-shaped print material is cut with a cutting device, an edge of said sheet-shaped print material is sensed upstream from the cutting device, and cutting of the sheet-shaped print material by the cutting device is initiated dependent upon a length of the sheet-shaped print material and the sensing of an edge.
Abstract:
Holographic labels are used on a variety of articles of manufacture for security, authenticity, or aesthetic appeal. Manufacturing a holographic label or sticker typically entails microembossing, that is, imprinting or cutting, microscopic grooves into a clear plastic sheet with a shiny aluminum coating. The grooves diffract light and form a three-dimensional image, such as the dove commonly found on Visanull brand credit cards. Unfortunately, conventional microembossing machines, or microembossers, suffer from a number of problems. For example, these microembossers include two large base rollers that move back and forth in sequence to contact a shimroller. The clumsy back and forth movement not only limits how fast embossing can occur but also causes misalignment of embossed images. To address this and other problems, the inventors devised an exemplary microembosser which includes a single base roller and a shimroller which one or more unique features. Among these features are magnetic members that assist in holding a shim; an internal temperature sensor that aids control of shimroller temperature; and one or more shimcollars or shimclamps that spans across a gap between the leading and trailing edges of a shim. Other features of the exemplary embosser include an automatic mechanism for separating the base roller and shimroller during shutdown.
Abstract:
The perceived softness of embossed tissue can be increased greatly while avoiding nesting when a particular pattern is embossed into the tissue. This pattern combines relatively shallow stitchlike bosses with deeper more sharply defined signature bosses. The stitchlike bosses can be rounded and arranged in wavy flowing intersecting lines. The signature bosses can be arranged in regions framed by the intersecting wavy flowing lines.
Abstract:
The perceived softness of embossed tissue can be increased greatly while avoiding nesting when a particular pattern is embossed into the tissue. This pattern combines relatively shallow stitchlike bosses with deeper more sharply defined signature bosses. The stitchlike bosses can be rounded and arranged in wavy flowing intersecting lines. The signature bosses can be arranged in regions framed by the intersecting wavy flowing lines.