WO1990015190A1 - Security paper for producing documents - Google Patents
Security paper for producing documents Download PDFInfo
- Publication number
- WO1990015190A1 WO1990015190A1 PCT/DE1990/000444 DE9000444W WO9015190A1 WO 1990015190 A1 WO1990015190 A1 WO 1990015190A1 DE 9000444 W DE9000444 W DE 9000444W WO 9015190 A1 WO9015190 A1 WO 9015190A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paper
- colour
- color
- security
- marking
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
Definitions
- the detection of imitation of a document is usually supported by the fact that the original is provided with certain characteristics which cannot be imitated, or can only be imitated with considerable effort or only incompletely, and thus make the original distinguishable from imitation.
- These characteristics include the use of special papers which are not accessible to everyone and into which, for example, fluorescent inlays, planchettes, watermarks, metal threads or other features which are not contained in freely accessible papers are incorporated.
- the optical design of the Serve as a mark of the document for example by printing markings, guilloches, complicated layers of color or meticulously structured motifs on the paper or using other printing techniques that make it difficult to imitate. All such characteristics have proven themselves in many areas, especially if, as is often the case, several are provided together, for example the paper contains watermarks and fluorescent inserts and is at the same time printed in a manner that is not counterfeit.
- EP-A 90 130 describes a method with which the disadvantages mentioned are to be overcome.
- This method for checking the authenticity of documents works on the principle of the color reaction systems known from pressure-sensitive copy papers (carbonless copying paper or NCR paper), which comprise an electron-donating color former and an electron-accepting color developer.
- pressure-sensitive copy papers carbonless copying paper or NCR paper
- clays, attapulgite, zeolite, bentonite and kaolin or also phenolic resins are used as color developers, and cationic dyes in their colorless (or very weakly colored) leuco form, e.g. Crystal violet lactone or benzoyl leukomethylene blue.
- One of the two components preferably the color developer of the color reaction system
- the other component that is to say preferably the color former
- a color reaction occurs between the components of the color reaction system, which causes a color appearance that differs from the original color of the marking liquid.
- the marking appears in the original color of the marking liquid.
- this object is achieved in that the color developer is evenly distributed in the paper. This is achieved in that the color developer is added to the paper pulp before the web is formed, that is, it is incorporated into the paper.
- activated clay qualities such as Silton, bentonite, attapulgite or synthetic products, such as treated anhydrides, aluminum silicates, magnesium silicates
- phenolic resins such as e.g. Condensation products of paraphenylphenol, para-alkylphenols with formaldehyde.
- the security paper according to the invention is coated with a marking liquid which contains a color former
- a marking liquid which contains a color former
- the marking penetrates into the paper and can even penetrate to the other side of the paper, ie it is mirrored there. It is now no longer possible to remove such a marking from the respectively marked document without destroying it.
- the security is significantly increased by the fact that a paper with an integrated color developer is a real security paper, that is to say the special papers mentioned at the outset (with, for example, fluorescent inserts, planchettes, watermarks, metal threads and the like), that are not accessible to everyone.
- Another advantage is that the marking can be carried out with the same success on both sides of the paper. In the past, the paper had to be coated on both sides.
- the marking liquid with only the color former as the sole colorant.
- Such a kind of "invisible" marking color which is only visible on an original document, is less useful, however, because the non-appearance of a marking on an imitation at the examiner can also lead to the wrong conclusion that the marking device has failed.
- documents must also be checked and validated for numerous applications, for example for railway tickets in the supranational transport association can, which are valid, but come from third-party issuers and do not have the security standard achieved according to the invention.
- parts of the surface of the security paper can be coated on one or both sides with a neutralizing color. In the areas neutralized in this way, there is no color reaction during the marking, so that the original color of the marking liquid appears. In contrast, the color reaction between color former and color developer takes place in the non-neutralized areas of the paper, and the overlay color appears. This enables an immediate comparison of the original color with the overlay color and thus a particularly quick and reliable check even by people with defective color.
- a further possibility of color differentiation results from the use of a multi-part stamp pad, in which at least one part contains the marking liquid without color former and at least another part of the stamp pad contains the marking liquid with color former.
- the paper is expediently provided with further authenticity indicators known per se, such as watermarks, fluorescent inlays and the like, which can be used in a targeted manner for an in-depth authenticity check if the color reaction has revealed the suspicion of imitation. It was found to be particularly surprising that watermarks appear significantly more clearly than usual in the paper according to the invention.
- a phenothiazine leuco base (“Pergascript Blue S-4G") is dissolved as a color former in a commercially available, for example green or red stamp ink.
- a watermark paper is provided as paper which contains activated attapulgite as color developer. If this paper is now printed with the stamp ink containing the color former, the result is an approximately dark brown stamp impression.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI910544A FI910544A0 (en) | 1989-06-08 | 1991-02-05 | SAEKERHETSPAPPER FOER FRAMSTAELLNING AV DOKUMENT. |
NO91910478A NO910478L (en) | 1989-06-08 | 1991-02-07 | SAFETY PAPER FOR MANUFACTURING DOCUMENTS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3918765.9 | 1989-06-08 | ||
DE19893918765 DE3918765A1 (en) | 1989-06-08 | 1989-06-08 | SECURITY PAPER FOR THE PRODUCTION OF DOCUMENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990015190A1 true WO1990015190A1 (en) | 1990-12-13 |
Family
ID=6382378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1990/000444 WO1990015190A1 (en) | 1989-06-08 | 1990-06-08 | Security paper for producing documents |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0427847A1 (en) |
JP (1) | JPH04500250A (en) |
AU (1) | AU640148B2 (en) |
CA (1) | CA2034000A1 (en) |
DD (1) | DD299443A5 (en) |
DE (1) | DE3918765A1 (en) |
ES (1) | ES2020901A4 (en) |
WO (1) | WO1990015190A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801589C2 (en) * | 1998-01-17 | 2001-02-01 | Bundesdruckerei Gmbh | Process for the tamper-proof production of value and security documents |
DE19936030A1 (en) * | 1999-07-30 | 2001-02-08 | Mitsubishi Hitec Paper Flensbu | Recording paper with a combination of several security features |
DE10001697A1 (en) * | 2000-01-18 | 2001-07-19 | Granderath Gmbh J | Authorization information sheet is provided with substance so that printed information is removed by solvent or reacts with it so reaction is made visible by appearance of color |
FR2804448B1 (en) * | 2000-02-01 | 2002-04-05 | Arjo Wiggins Sa | SECURITY PAPER COMPRISING A SECURITY ZONE, METHOD FOR PRODUCING SUCH PAPER AND DEVICE FOR CARRYING OUT SAID METHOD |
DE10020873A1 (en) * | 2000-04-28 | 2001-11-08 | Mitsubishi Hitec Paper Flensbu | Temporary authentification mark for security documents uses a substituted phthalide reacting on contact with an alkaline solution, together with a volatile solvent |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380195A (en) * | 1942-05-19 | 1945-07-10 | Todd Co Inc | Safety paper and ink therefor |
US3523866A (en) * | 1968-11-19 | 1970-08-11 | Wilbur W Krueger | Authenticatable paper |
FR2315132A1 (en) * | 1975-06-20 | 1977-01-14 | Pelikan Werke Wagner Guenther | PROCEDURE FOR THE PROTECTION AGAINST THE FALSIFICATION OF SECURITIES AND DOCUMENTS OF SIMILAR VALUE |
GB1507454A (en) * | 1975-06-19 | 1978-04-12 | Wiggins Teape Ltd | Security paper |
EP0090130A1 (en) * | 1982-03-25 | 1983-10-05 | Billett-Automation Dipl.-Ing. Klaus Schwarz OHG | Process for checking the authenticity of security documents, and distributing device for carrying out the process |
EP0252579A1 (en) * | 1986-07-01 | 1988-01-13 | Moore Business Forms, Inc. | Security document and method of testing same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3132146A1 (en) * | 1981-08-14 | 1983-03-03 | Bayer Ag, 5090 Leverkusen | COUNTERFEIT-PROOF PAPER |
-
1989
- 1989-06-08 DE DE19893918765 patent/DE3918765A1/en not_active Ceased
-
1990
- 1990-06-08 CA CA 2034000 patent/CA2034000A1/en not_active Abandoned
- 1990-06-08 ES ES90909040T patent/ES2020901A4/en active Pending
- 1990-06-08 JP JP50860190A patent/JPH04500250A/en active Pending
- 1990-06-08 WO PCT/DE1990/000444 patent/WO1990015190A1/en not_active Application Discontinuation
- 1990-06-08 EP EP19900909040 patent/EP0427847A1/en not_active Withdrawn
- 1990-06-08 DD DD34146990A patent/DD299443A5/en unknown
- 1990-06-08 AU AU58282/90A patent/AU640148B2/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380195A (en) * | 1942-05-19 | 1945-07-10 | Todd Co Inc | Safety paper and ink therefor |
US3523866A (en) * | 1968-11-19 | 1970-08-11 | Wilbur W Krueger | Authenticatable paper |
GB1507454A (en) * | 1975-06-19 | 1978-04-12 | Wiggins Teape Ltd | Security paper |
FR2315132A1 (en) * | 1975-06-20 | 1977-01-14 | Pelikan Werke Wagner Guenther | PROCEDURE FOR THE PROTECTION AGAINST THE FALSIFICATION OF SECURITIES AND DOCUMENTS OF SIMILAR VALUE |
EP0090130A1 (en) * | 1982-03-25 | 1983-10-05 | Billett-Automation Dipl.-Ing. Klaus Schwarz OHG | Process for checking the authenticity of security documents, and distributing device for carrying out the process |
EP0252579A1 (en) * | 1986-07-01 | 1988-01-13 | Moore Business Forms, Inc. | Security document and method of testing same |
Also Published As
Publication number | Publication date |
---|---|
EP0427847A1 (en) | 1991-05-22 |
CA2034000A1 (en) | 1990-12-09 |
AU640148B2 (en) | 1993-08-19 |
DD299443A5 (en) | 1992-04-16 |
ES2020901A4 (en) | 1991-10-16 |
DE3918765A1 (en) | 1990-12-13 |
JPH04500250A (en) | 1992-01-16 |
AU5828290A (en) | 1991-01-07 |
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