Embossing or bonding device containing facetted impression elements
AssigneeKimberly-Clark Worldwide, Inc.
InventorsTimothy J. Blenke, Daniel R. Schlinz
Life of this patent
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Abstract
Facetted impression elements are disclosed. The impression elements can be located, for instance, on an anvil roll and may be used during an embossing or bonding process. The impression elements include at least two chamfered surfaces that at least partially surround the top surface. The chamfered surfaces are at an angle to the top surface that lower and reduce drag that may occur between the impression element and a sheet of material as the impression element enters and exits the sheet. In one embodiment, the impression element includes a first chamfered surface having an angle of from about 5° to about 40° and a second chamfered surface having an angle of from about 40° to about 70°.
Claims37
An embossing or bonding roller for sheet materials comprising:
- an anvil roller defining a surface;
- and
- at least one facetted impression element extending from the surface of the anvil roller, the facetted impression element for bonding or embossing a sheet material that is contacted with the anvil roller, the impression element having a top surface and a height, the facetted impression element including a first chamfered surface adjacent to the top surface, a second chamfered surface positioned below the first chamfered surface, and a third surface positioned below the second chamfered surface and connecting the second chamfered surface with the surface of the anvil roller, the first chamfered surface having a first length and wherein a cross-section of the first chamfered surface is linear over the entire length of the first chamfered surface, the second chamfered surface having a second length and wherein a cross-section of the second chamfered surface is also linear over the length of the second chamfered surface, wherein the first chamfered surface has a first edge and a second edge, the first edge being adjacent to the top surface while the second edge being adjacent to the second chamfered surface.
A method of forming embossments or bonding areas in a sheet material comprising:
- contacting a sheet material with an anvil roller having a plurality of facetted impression elements extending therefrom, the sheet material being contacted with the anvil roller under sufficient pressure or energy to cause the impression elements to form depressions in the sheet material, the facetted impression elements having a top surface and a height, the facetted impression elements including a first chamfered surface adjacent to the top surface, a second chamfered surface positioned below the first chamfered surface, and a third surface positioned below the second chamfered surface and connecting the second chamfered surface with the surface of the anvil roller, the first chamfered surface having a first length and wherein a cross-section of the first chamfered surface is linear over the entire length of the first chamfered surface, the second chamfered surface having a second length and wherein a cross-section of the second chamfered surface is also linear over the length of the second chamfered surface, wherein the first chamfered surface has a first edge and a second edge, the first edge being adjacent to the top surface while the second edge being adjacent to the second chamfered surface.
An embossing or bonding roller for sheet materials comprising:
- an anvil roller defining a surface;
- and
- at least one facetted impression element extending from the surface of the anvil roller, the facetted impression element for bonding or embossing a sheet material that is contacted with the anvil roller, the impression element having a top surface and a height, the facetted impression element including a first chamfered surface adjacent to the top surface, a second chamfered surface positioned below the first chamfered surface, and a third surface positioned below the second chamfered surface and connecting the second chamfered surface with the surface of the anvil roller, the first chamfered surface having a first length and wherein a cross-section of the first chamfered surface is linear over the entire length of the first chamfered surface, the second chamfered surface having a second length and wherein a cross-section of the second chamfered surface is also linear over the length of the second chamfered surface, and wherein the first chamfered surface has a first edge and a second edge, the first edge being adjacent to the top surface while the second edge being adjacent to the second chamfered surface, and wherein the first chamfered surface is at a first angle of from about 5° to about 45° to a horizontal plane and the second chamfered surface is at a second angle of from about 40° to about 75° to a horizontal plane and wherein the first angle is less than the second angle, and wherein the top surface of the facetted impression element has a surface area of less than about 3 mm2, and wherein the first length is less than the second length.
Dependencies are inferred from the claim text.