# US 5,699,743 A · Composition and method for raised thermographic printing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,699,743 A - Document ID: US5699743A - Status: Granted - Kind: A - Application number: 08/649,430 - Filed: 1996-05-17 - Granted: 1997-12-23 - Earliest claimed: 1996-05-17 - Inventors: Leonard R. Ganz; Anthony F. Urgola - Web page: https://patentgrep.com/patent/US5699743A ## CPC - B41M 7/02: Dusting {, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure (B41M7/0027, B41M7/0036, B41M7/0045, B41M7/0054, B41M7/0072, B41M7/0081, B41M7/009 take precedence); Varnishing (devices for treating the surfaces of sheets, webs, or other articles in connection with printing B41F23/00, B41L23/00)} - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## Abstract The present invention relates to a product having raised thermographic print and a method for making the same. The product relates to a raised thermographic product having raised thermographic print greater than about 0.01 inches. The method includes preparing a large granulation powder, printing a wet ink line on a sheet for receiving the large granulation powder, placing a sufficient amount of the large granulation powder on the wet ink line to provide a desired height to the raised thermographic product, removing a sufficient amount of large granulation powder from the sheet to avoid a blurred thermographic product, while leaving a sufficient amount in contact with the ink line to provide the desired height, heating the sheet over an amount of time sufficient to melt and fuse the large granulation powder, yet insufficient to cause overmelting or flattening, and cooling the fused large granulation powder sufficiently to avoid flattening, sticking, or smearing of the fused powder, thereby obtaining a raised thermographic product greater than about 0.01 inches in height. ## Claims ### Claim 1 A method of making a raised thermographic product comprising the steps of: preparing a large granulation powder having a particle size of about 20 to 50 mesh; printing a wet ink line having a width of about 1/16 to 1/8 inch on a substrate for receiving the large granulation powder; placing a sufficient amount of the large granulation powder on the wet ink line to provide a desired height to the raised thermographic product; removing a sufficient amount of large granulation powder from the substrate to avoid a blurred thermographic product, while leaving a sufficient amount in contact with the ink line to provide the desired height; heating the substrate over an amount of time sufficient to entirely melt and fuse the large granulation powder to yield a smooth surface, yet insufficient to cause flattening of the large granulation powder; and cooling the fused large granulation powder sufficiently to avoid flattening, sticking, or smearing of the fused powder, thereby obtaining a raised thermographic product greater than at least 0.01 inches in height. ### Claim 2 (depends on 1) The method of claim 1, wherein the heating step further comprises heating the substrate to about 350.degree. F. to 450.degree. F. ### Claim 3 (depends on 1) The method of claim 1, wherein the heating step further comprises heating the substrate for about 0.75 to 1.2 seconds. ### Claim 4 (depends on 1) The method of claim 1, wherein the cooling step further comprises cooling the substrate below about 200.degree. F. ### Claim 5 (depends on 1) The method of claim 1, which further comprises selecting the substrate to be paper. ### Claim 6 A raised thermographic product comprising a substrate having raised thermographic print thereon which is greater than 0.01 inches in height and which is produced by a method comprising the steps of: preparing a large granulation powder having a particle size of about 20 to 50 mesh; printing a wet ink line having a width of about 1/16 TO 1/8 inch on a substrate for receiving the large granulation powder; placing a sufficient amount of the large granulation powder on the wet ink line to provide a desired height to the raised thermographic product; removing a sufficient amount of large granulation powder from the substrate to avoid a blurred thermographic product, while leaving a sufficient amount in contact with the ink line to provide the desired height; heating the substrate over an amount of time sufficient to entirely melt and fuse the large granulation powder to yield a smooth surface, yet insufficient to cause overmelting flattening of the large granulation powder; and cooling the fused large granulation powder sufficiently to avoid flattening, sticking, or smearing of the fused powder, thereby obtaining the raised thermographic print. ### Claim 7 (depends on 6) The raised thermographic product of claim 6, wherein the substrate comprises paper. ### Claim 8 (depends on 6) The raised thermographic print of claim 6, having a line width of about 1/16 to 1/8 inch. ### Claim 9 A raised thermographic product comprising a substrate having raised smooth surface thermographic print thereon which is greater than 0.01 inches in height, wherein the print is about 1/16 to 1/8 inches in width. ### Claim 10 (depends on 9) The raised thermographic product of claim 9, wherein the substrate comprises paper. ### Claim 11 (depends on 9) The raised thermographic product of claim 9, wherein the raised thermographic print is formed as a border outline of a shape on the substrate.