Process for preparing polymeric security articles
AssigneeKoenig & Bauer Banknote Solutions SA
InventorsMichael Blesovsky, Johannes Schaede, Robert Stewart
Life of this patent
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Abstract
There is described a method of manufacturing a security article, said method comprising the steps of: introducing into an offset printing device a transparent film comprising a non-fibrous substrate layer of regenerated cellulose; disposing an opacification layer on at least a portion of at least one surface of said film by a first offset printing step; and disposing printed information on at least a portion of said opacification layer by a second offset printing step.
Claims20
A method of manufacturing a security article, said method comprising the steps of:
- a. introducing into an offset printing device a transparent film comprising a non-fibrous substrate layer of regenerated cellulose;
- b. disposing an opacification layer on at least a portion of at least one surface of said film by a first offset printing step;
- and
- c. disposing printed information on at least a portion of said opacification layer by a second offset printing step.
A banknote comprising a transparent film comprising a non-fibrous substrate layer of regenerated cellulose, wherein
- (i) a printed opacification layer is disposed on at least a portion of at least one surface of said film,
- (ii) said banknote comprises one or more window region(s), wherein a window region is defined as a portion of the printed film in which said opacification layer is absent on both surfaces of said film,
- (iii) said window region comprises printed information disposed therein, and
- (iv) printed information is disposed on at least a portion of said printed opacification layer.
A method of manufacturing a plurality of different types of security article, wherein each type of security article is manufactured by a method comprising the steps of:
- a. introducing into an offset printing device a transparent film comprising a non-fibrous substrate layer of regenerated cellulose;
- b. disposing an opacification layer on at least a portion of at least one surface of said film by a first offset printing step;
- and
- c. disposing printed information on at least a portion of said opacification layer by a second offset printing step,
- wherein either (i) the same type of transparent film which is fed into the printing device in step (a) is used as a base film for each of said plurality of different types of security article, such that said plurality of different types of security article differ from each other only by features applied by a processing step subsequent to step (a);
- or (ii) the same type of offset-printed film which results from step (c) is used as a base film for each of said plurality of different types of security article, such that said plurality of different types of security article differ from each other only by the features applied to said offset-printed film which results from step (c) by a subsequent processing step.
Dependencies are inferred from the claim text.