FIELD: paper improved through usage of watermarks and/or embossed members for strengthening of paper sheets and documents manufactured from such a paper.
SUBSTANCE: paper sheet has at least three corners and three sides connected in said corners, wherein angular strengthening watermarks are formed in each of said corners. Alternatively or in addition to it, angular strengthening embossing members are formed in each of said corners. Also, according to another version, paper sheet has at least three corners and three sides connected in said corners, wherein edge strengthening watermarks are formed in the vicinity of mid portion of each of said edges or said watermarks cover mid portion of each of said edges.
EFFECT: increased strengthening of paper sheets and improved protection of documents manufactured from said paper sheets.
21 cl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LAMINATED PAPER FOR FABRICATION OF SECURITY DOCUMENTS, WHICH CONTAINS STRENGTHENING STRIPS | 2010 |
|
RU2427468C1 |
| VALUABLE DOCUMENT WITH LOCAL STRENGTHENING, PAPER FOR DOCUMENTS PROTECTED FROM FORCING, AND CORRESPONDING METHODS | 2002 |
|
RU2317898C2 |
| PAPER WITH INTAGLIO PRINT PATTERN FOR MAKING COVERED INSTRUMENTS | 2007 |
|
RU2450938C2 |
| PROTECTED DOCUMENT | 2019 |
|
RU2775784C2 |
| PAPER INCLUDING WIDE ELONGATED IMPERMEABLE MEMBER, AND METHOD FOR MANUFACTURING THE SAME | 2002 |
|
RU2299286C2 |
| SHEET WITH LOW-OPACITY AREA PROTECTED AGAINST COPYING | 2003 |
|
RU2331524C2 |
| SHEET CONTAINING WATER MARK OR SIGN PSEUDO-WATER MARK VISIBLE ONLY ON ONE SIDE OF SHEET | 2008 |
|
RU2485238C2 |
| IMPROVEMENT OF METHODS FOR MANUFACTURING OF PROTECTIVE SUBSTRATES | 2006 |
|
RU2386541C2 |
| DEVELOPMENTS IN PROTECTIVE SUBSTRATES | 2006 |
|
RU2393099C2 |
| MULTILAYER COUNTERFEIT-PROOF ARTICLE (VERSIONS) AND VALUABLE DOCUMENT BASED ON IT | 2014 |
|
RU2557565C1 |
