Layered structure and films for ID documents having improved properties for laser engraving
US-10131178-B2 · Nov 20, 2018 · US
US2016332426A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016332426-A1 |
| Application number | US-201514709566-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 12, 2015 |
| Priority date | May 12, 2015 |
| Publication date | Nov 17, 2016 |
| Grant date | — |
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A method of manufacturing polymeric currency utilizing three dimensional objects may include forming a first and second layer of biaxially oriented polypropylene. Ink may be selectively applied to one or more portions of one or more sides of the first layer of biaxially oriented polypropylene. In response to applying the ink, one or more apertures may be created into the second layer of biaxially oriented polypropylene. The first and second layers of biaxially oriented polypropylene may be laminated together. A three dimensional object may be printed within the one or more apertures in the second layer of biaxially oriented polypropylene. In response to printing, a protective overcoat may be applied on top of the second layer of biaxially oriented polypropylene.
Opening claim text (preview).
1 - 11 . (canceled) 12 . A polymeric currency substrate, comprising: two or more biaxially oriented polypropylene layers, wherein ink is selectively applied to at least one biaxially oriented polypropylene layer on at least one side; and a three dimensional printed object sealed between two of the biaxially oriented polypropylene layers, wherein the three dimensional printed object has a height less than or equal to the thickness of one of the two biaxially oriented polypropylene layers. 13 . The polymeric currency substrate of claim 12 , wherein the three dimensional printed object comprises a polymeric matrix, wherein the matrix includes anti-counterfeiting features. 14 - 20 . (canceled)
characterised by the properties of the layers · CPC title
Perforations · CPC title
PP, i.e. polypropylene · CPC title
Protective equipment · CPC title
absorbing or reflecting ultraviolet light · CPC title
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