FIELD: protection of documents from copying. SUBSTANCE: anticopying film has at least one layer of transparent material with opaque or reflective zones equally spaced one relative to another. Planes of above zones are extending in parallel one relative to another in predetermined position with respect to surface of transparent layer. Anticopying film is partially transparent at predetermined angle of viewing. Opaque or reflective zones are partially made from exposed or, if required, developed photosensitive material. Opaque or reflective zones are arranged in vertical position or at an angle to transparent layer surface. In other version, transparent and opaque or reflective zones are formed from coextruded transparent and opaque or reflective plastics. EFFECT: increased efficiency in protecting documents from copying and enhanced reliability in operation. 12 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ANTICOPYING LAYER TO DOCUMENTS AND METHOD OF ITS PRODUCTION | 1993 |
|
RU2102244C1 |
| METHOD AND DEVICE FOR PRODUCTION OF FILM OR COATING LAYER WITH SURFACE STRUCTURIZED FROM BOTH SIDES | 1998 |
|
RU2193968C2 |
| SEE-THROUGH PROTECTIVE ELEMENT HAVING MICROSTRUCTURES | 2007 |
|
RU2452627C2 |
| CARTRIDGE | 1991 |
|
RU2018978C1 |
| VALUABLE DOCUMENT WITH SECURITY ELEMENTS | 1994 |
|
RU2111864C1 |
| DOCUMENT PROTECTED FROM COUNTERFEIT | 1998 |
|
RU2193975C2 |
| PROTECTIVE ELEMENT AND METHOD OF ITS PRODUCTION | 2006 |
|
RU2395400C2 |
| METHOD FOR MANUFACTURING OF MULTI-LAYER SUBSTRATE AND MULTI-LAYER SUBSTRATE | 2006 |
|
RU2374082C2 |
| PROTECTIVE ELEMENT WITH METAL COATING | 2007 |
|
RU2428316C2 |
| MULTILAYER BODY AND METHOD OF MAKING MULTILAYER BODY | 2006 |
|
RU2390808C2 |
