Abstract:
An apparatus for embossing a web substrate is disclosed. The apparatus has a pattern roll, at least two rolls juxtaposed in an axially parallel relationship with the pattern roll, and a continuous belt disposed about the at least two rolls. The pattern roll has a circumference and an embossing pattern disposed upon a surface thereof. The continuous belt has a circumferential axis generally corresponding to the surface of said pattern roll. The continuous belt is disposed upon at least a portion of the circumference of the pattern roll and forms a circumferentially elongate nip therebetween. The pattern roll and the continuous belt are adapted to receive the web substrate at the elongate nip. The pattern roll and the continuous belt emboss the web substrate while the web substrate is disposed between the pattern roll and the continuous belt.
Abstract:
A process for manufacturing a multi-ply paper product is disclosed. The process includes the steps of: 1. Providing a web substrate; 2. Providing a pattern roll; 3. Providing an anvil roll having a hardness of less than about 40 P&J; 4. Providing an embossing roll having a hardness of greater than about 40 P&J; 5. Juxtaposing the anvil roll and the pattern roll in an axially parallel relationship to form a first nip therebetween; 6. Juxtaposing the embossing roll and the pattern roll in an axially parallel relationship to form a second nip therebetween; 7. Forwarding the web substrate through the first nip such that portions of the web substrate are embossed at the first nip to provide an embossed first paper web; and, 8. Forwarding the embossed first paper web through the second nip so that the embossed portions of the first paper web are further embossed in registration with the embossed portions of the first paper web.
Abstract:
An emboss device including an emboss roller having a surface on which convexoconcave are formed; and an opposed roller arranged oppositely to the emboss roller. The emboss roller and the opposed roller sandwich a sheet-like print object, thereby to impart convexoconcave to the print object. The spacing d between the protruded part of the surface of the emboss roller and the surface of the opposed roller is set to 50 μm to 200 μm.
Abstract:
The sheet of tissue paper includes at least one first embossed zone (A1, A2) having protrusions on a surface corresponding to alveoles on the other. The alveoles have a substantially polygonal base and the sheet includes at least one second, unembossed zone (B). In the invention, the alveoles 101′, 102′ are configured along at least one array, the mutually facing sides of two adjacent alveoles define a bridge (P) having rectilinear or substantially rectilinear edges of length L which is larger than its greatest width D, one or several bridges connected to each other subtending a path preferably between two second unembossed zones (B) which are separated by at least one first, embossed zone (A1, A2). The invention also relates to a cylinder embossing such a sheet.
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:
An on-line process for manufacturing a multi-ply hygienic paper product is provided which involves the steps of supplying at least two separate webs to a processing station, applying to at least one of the surfaces of a web forming an outer ply a softening composition, adjoining the webs by gluing and/or embossing to manufacture a multi-ply hygienic paper product and directly transporting such paper to a cutting and/ or further processing station.
Abstract:
The device for satinizing and embossing flat materials comprises an embossing roll and at least one mating roll, said rolls being connected to a driving system and adapted to be driven individually or in common and to be resiliently pressed against one another while the individual teeth are flattened, and the embossing teeth being designed such as to produce in the corresponding locations of said flat material during its passage embossed marks whose appearance varies according to the viewing angle of the observer and/or the kind and/or the position of the lighting source, the embossing teeth which produce said variable marks having a different geometrical shape and/or surface than the satinizing teeth intended for satinizing. To this end, the surfaces of said embossing teeth and/or portions of the tooth space bottom are provided with microstructures. These microstructures allow producing largely forgery-proof marks which may furthermore provide a very decorative effect.
Abstract:
The present invention provides a die for impressing a material between the die and an anvil such as to apply a compressive force to the material. The die comprises a plurality of fields. Each of the fields includes at least two projections arranged to engage the material substantially simultaneously. In addition each of the fields is characterized by a total contact area over which the compressive force is applied. The total contact area of each field is defined by the projections of the respective field. The total contact area of each field is substantially uniform from one field to another such that the pressure applied by each individual field on the die is not more than double the pressure applied by any other individual field on the die.