Abstract:
A method of applying a protective strip to an edge of a wood product piece. The process uses a set of aligned rollers and a belt apparatus that includes a pair of rollers having a shoe positioned between them and a belt fitted about the rollers and the shoe. The distance from the belt to the first set of aligned rollers is substantially equal to the width of the wood product piece. The wood product piece is placed between the first set of aligned rollers and the belt apparatus and resin is applied to the edge the wood product piece. The wood products piece is then squeezed between the first set of aligned rollers and the belt apparatus. At least a subset of the rollers are driven to move the wood products piece along the belt apparatus, thereby causing the resin to be squeezed into the edge of the wood products piece. Finally, the resin is cured.
Abstract:
Rapid prototyping modeling typically operates by utilizing an ink jet to lay down a thin surface of material as a liquid on a part platform. The material solidifies into a three dimensional object. Computer programs determine the shape of the object, the arrangement of objects and the sequence of objects being built to protect parts of the planarizer roller and planarizer blade of a rapid prototyping machine from erosion.
Abstract:
A process for embossing a flexible graphite sheet, and the flexible graphite article produced thereby is presented. The inventive process includes the steps of providing an embossing apparatus which generally comprises two opposed elements, one of the two opposed elements comprising an embossing element having an embossing pattern thereon, the embossing pattern formed by arraying a series of lands having a predetermined height from the surface of the embossing element and channel floors, about the surface of the embossing element; and the other of the two opposed elements comprising a landing element, wherein the embossing element and landing element are arrayed in the embossing apparatus such that the surface of the landing element is separated from the channel floors of the embossing element by a distance “d” which is at least equal to the height of the lands; and embossing a flexible graphite sheet by passing it between the embossing element and the landing element of the embossing apparatus such that the lands of the embossing element exert pressure on the flexible graphite sheet, wherein the flexible graphite sheet has a thickness in the region of the embossing pattern prior to embossing which is less than distance “d”, but greater than the distance between the surface of the landing element and the lands of the embossing element, thus forming a gap between the flexible graphite sheet and the channel floors of the embossing element, further wherein embossing of the flexible graphite sheet in the embossing apparatus causes material to flow from the area of the flexible graphite sheet which encounters pressure from the lands of the embossing element to the gap between the flexible graphite sheet and the channel floors of the embossing element.
Abstract:
An apparatus and method for printing and embossing elongated substrates provide for both length and position registration with respect to the printed and embossed patterns. The ink pattern to embossed pattern error is corrected by stretching or relaxing the substrate between the printing and embossing assemblies.
Abstract:
Fastener products having a multiplicity of fastener elements extending from a strip-form base, the base including first and second attachment members for attachment of a substrate therebetween, are formed by continuously introducing molten resin to a gap defined adjacent a peripheral surface of a rotating mold roll. The resin forms part of the strip-form base of the product at the peripheral mold roll surface and fills an array of fixed cavities defined in the rotating mold roll to form portions of the fastener elements as projections extending from a first side of the sheet-form base. While the resin is on the mold roll, a sheet material is introduced. The sheet material is folded about a longitudinal fold line to form first and second overlapping fold portions and is introduced under conditions selected to cause the second fold portion to become permanently bonded to resin of the base, while leaving the first fold portion remaining free to be subsequently unfolded from said second fold portion about said fold line. The resin is solidified and stripped from the peripheral surface of the mold roll by pulling the projections from their respective cavities. In some embodiments, a spring section is integrally molded with and extends laterally from a fastening section of the fastener product. The spring section is formed by at least one undulation of the sheet form base that allows the spring section to stretch elastically in a lateral direction upon application of lateral tension to the fastening assembly.
Abstract:
An embossing roll includes a roll body and a plurality of plates which are removably secured to the roll body. Each plate includes an outer surface which is provided with an embossing pattern. The plates can be secured to the roll body by vacuum and/or mechanical devices.
Abstract:
The general application of the invention is a finishing process for an air-laid nonwoven web composed of short cellulosic fibers, bound by a thermoplastic binder and having a less than perfect homogeneous fiber distribution. In the invention, the process includes deforming under hot stress the web between an undeforming hard engraved cylinder and a slave cylinder having a hardness between about 60 and 90 degrees shore hardness D. The slave cylinder is resilient and deformable at the pressure applied to it by the engraved cylinder. In particular, the invention applies to the manufacture of webs and of disposable, decorative napkins.
Abstract:
An embossing device for embossing a single-ply or multi-ply web of tissue paper includes a first steel roll with embossing protuberances on its peripheral surface and a second roll with a yielding layer on its peripheral surface. The second roll cooperates with the steel roll so as to form an embossing nip therewith. The steel roll and the second roll run in synchronization. The second roll has individual zones on its peripheral surface with a higher overall thickness and/or different material characteristics of the yielding layer compared to that of the remaining peripheral surface. These individual zones are opposed in the embossing nip to embossing protuberances of the steel roll.
Abstract:
A method for making a bulky web. A web is fed in a first direction. The web is subjected to incremental stretching in a direction perpendicular to the first direction to provide a bulky web. The bulky web is then stabilized to provide a stabilized bulked web, Optionally, the bulky web may be gathered after it has been subjected to incremental stretching.
Abstract:
A decorative relief pattern is applied to one or both sides of thermoplastic slat material by rolling an embossing roller in contact with the side(s) to receive the pattern. The embossing roller has an inverse relief pattern which is an inverse of the relief pattern applied to the slat material. A transfer roller applies an ink layer to the embossing roller, with the resulting thickness of the ink layer varying according to features of the inverse relief pattern. Depressed areas of the inverse relief pattern receive relatively little ink. An air stream from an air knife is applied to the ink layer, with ink being preferentially cleaned from relatively smooth areas of the inverse relief pattern. Then, a portion of the ink remaining on the embossing roller is transferred to the slat material along with the formation of the embossed pattern in the slat material.