Product with a security element

• US 6,827,283 B2
• Filed: 07/23/2003
• Issued: 12/07/2004
• Est. Priority Date: 09/21/2000
• Status: Expired due to Term

• Current Assignee: U-NICA Technology AG (U-NICA Solutions AG)
• Original Assignee: ORGA Kartensysteme GmbH (Safran SA)
• Inventors: Hennemeyer-Schwenker, Michael, Schumacher, Mathias, Fischer, Dirk, Kappe, Frank, Fannasch, Lothar
• Primary Examiner(s): Le, Thien M.
• Assistant Examiner(s): Caputo, Lisa M.
• Application Number:
  US10/380,944
• Publication Number:
  US 20040007625A1
• Time in Patent Office: 503 Days
• Field of Search: 235/494, 235/487, 156/272.8
• US Class Current: 235/494
• CPC Class Codes: B41M 3/14 Security printing securities B42D25/29
• CPC Class Codes: B41M 5/28 using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating B41M5/38271 takes precedence
• CPC Class Codes: B41M 5/286 using compounds undergoing unimolecular fragmentation to obtain colour shift, e.g. bleachable dyes
• CPC Class Codes: B42D 2035/20 Optical effects
• CPC Class Codes: B42D 25/342 Moiré effects
• CPC Class Codes: B42D 25/41 using electromagnetic radiation B42D25/435 takes precedence
• CPC Class Codes: B42D 25/45 Associating two or more layers
• CPC Class Codes: G06K 19/06046 Constructional details

Abstract

The invention relates especially to a method for producing a product that is secure against fraud, i.e. a security product. The inventive method for producing a security product with a high degree of protection against fraud or tampering is characterized as follows: in a first step, a non-personalized and/or non-individualized support is provided with a non-personalized and/or non-individualized security element (100); in a second step and/or in further steps, the non-personalized and/or non-individualized support and the non-personalized and/or non-individualized security element (100) are personalized and/or individualized; a structure (101) that is optically effective in the security element (100) produces at least two especially, color effects; at least one of the color effects (106,107) only appears within a certain angular range to a vertical to the surface of the security element, and a personalizable and/or individualizable layer (102) that is provided in the security element (100) and/or a personalized and/or individualized layer that is provided in the security element (100) shows personalization and/or individualization information.

Claims

1. An element secured against forgery and/or counterfeiting, id est a security element (114) comprising at least two layers (104, 105), that are arranged one above another with a vertical offset and whose color can be changed independently from the other in at least one region, characterized in that colored regions of higher located layers at least partly cover colored regions of lower located layers and the colored region (107) of the first layer (104) and the colored region (108) of the second layer (105) and, if appropriate, colored regions (109) of further layers that are arranged above the first two together form a part, such as in particular an image point (115, 401, 501), of a personalization information (ABCD) and/or of an information that individualizes the security element, such as in particular a portrait, a signature or person-related data, whereby this part of the personalization information (ABCD) and/or of an information that individualizes the security element (114) exhibits a color change when the security element (114) is tilted by a change of the size of the covered parts of the regions.

2. The security element as claimed in claim 1, characterized in that at least one colored region (108) of the second layer (105) covers at least one colored region (107) of the first layer (104).

3. The security element as claimed in claim 2, characterized in that the colored region (107) of the first layer (104) and the colored region (108) of the second layer (105) and, if appropriate, colored regions (109) lying above these and belonging to further layers (106) together form a part, such as in particular an image point (115;

401;

501), of an item of personalization information (ABCD) and/or an item of information that individualizes the security element, such as in particular a portrait, a signature or person-related data.

4. The security element as claimed in claim 1, characterized in that the transparent regions (604, 605) and/or the regions whose color can be changed have been at least partly created by laser radiation.

5. The security element as claimed in claim 1, characterized in that one of the layers whose color can be changed has colorants of a first type, preferably colorants such as colored pigments which largely absorb blue light, for example from about 400-460 nm, and whose natural color is yellow, and/or one of the layers whose color can be changed has colorants of a second type, preferably colorants such as colored pigments which largely absorb green light, for example from about 500-560 nm, and whose natural color is red or magenta and/or in that one of the layers whose color can be varied has colorants of a third type, preferably colorants such as colored pigments which largely absorb red light, for example from about 580-680 nm, and whose natural color is blue or cyan.

6. The security element as claimed in claim 5, characterized in that each of the first to third colorants can be bleached or made transparent by the action of optical radiation matched to the respective colorant, such as in particular laser radiation of specific wavelength and/or intensity.

7. The security element as claimed in claim 1, characterized in that the security element has a large number of such image points (115;

401;

501) which form the item of personalization information and/or the item of information that individualizes the security element, the image points which are formed by the colored regions (107, 108, 109) that are located one above another in various planes (104, 105, 106) exhibiting a color change, such as in particular a color fringe, when the security element (114) is tilted.

8. The security element as claimed in claim 1, characterized in that the layers whose color can be changed and/or the regions whose color can be changed and belong to the layers whose color can be changed have a colorant formed by laser radiation and, for this purpose, are preferably provided with what are known as latent pigments and/or with what are known as color formers.

9. A security product, characterized in that the security product (100) has a security element (114) as claimed in claim 1.

10. The security product as claimed in claim 9, characterized in that the security product is an identity card (100), a credit card, a Eurocheque card, an insured person'"'"'s card, a telephone card, a driver'"'"'s license, an authorization card, an identification document, a product protection label, a banknote or the like.

11. A method of personalizing and/or individualizing a security element (114) and/or a security product (100) as claimed in claim 1, characterized in that at least one of the layers (104, 105, 106) whose color can be changed has its color changed in some regions (107, 108, 109) of the layer (104,105,106) in a first step, preferably by using laser radiation whose wavelength and/or intensity is in each case matched to the colorant that is present in the relevant layer and/or can be imaged, the regions of the layer whose color cannot be changed forming part of an item of personalization information and/or an item of information that individualizes the security element or security product or another item of information.

12. The method as claimed in claim 11, characterized in that the color change is carried out in the form of bleaching or removing and/or discoloring and/or making transparent, preferably to artificial and/or daylight, and/or a discoloring form.

13. The method as claimed in claim 11, characterized in that the color change is made in such a way that a region (108) that is colored and/or whose color can be changed and belongs to the second layer (105) is located with a vertical offset above a colored region (107) and/or above a region whose color can be changed and belongs to the first layer (104).

14. The method as claimed in claim 13, characterized in that the colored region (107) and/or the region whose color can be changed and belongs to the first layer (104) corresponds substantially in its extent to the extent of the colored region (108) and/or of the region whose color can be changed and belongs to the second layer (105), as a result of which the colored region and/or the region whose color can be changed and belongs to the first layer covers the colored region and/or the region whose color can be changed and belongs to the second layer in a largely vertical plan view of the security element (114) or security product (100), preferably substantially flush.

15. An apparatus for personalizing a security element and/or security product, characterized in that the apparatus for personalizing a security element (114) or security product (100) is modified in accordance with claim 11.

16. An apparatus for producing a security element and/or a security product, characterized in that the apparatus for producing a security element (114) or security product (100) is modified in accordance with claim 1.