EP1028853A1 - Heat-sensitive recording sheet with a security element in the form of pressure-sensitive microcapsules - Google Patents
Heat-sensitive recording sheet with a security element in the form of pressure-sensitive microcapsulesInfo
- Publication number
- EP1028853A1 EP1028853A1 EP99944458A EP99944458A EP1028853A1 EP 1028853 A1 EP1028853 A1 EP 1028853A1 EP 99944458 A EP99944458 A EP 99944458A EP 99944458 A EP99944458 A EP 99944458A EP 1028853 A1 EP1028853 A1 EP 1028853A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- sensitive recording
- sensitive
- color
- microcapsules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
Definitions
- Microcapsules have also been proposed for use in the manufacture of heat sensitive recording sheets.
- the well-known Beat mainly concern the improvement of shelf life and the development of pressure and heat sensitive recording materials, which also enable heat sensitive image transfer.
- the heat-sensitive image transfer recording sheet is placed on a simple sheet of paper and a thermal head is applied to the heat-sensitive recording layer, an image is formed on the heat-sensitive recording layer and the image of the recording is formed on the plain paper by heat transfer.
- a thermal head is applied to the heat-sensitive recording layer
- an image is formed on the heat-sensitive recording layer and the image of the recording is formed on the plain paper by heat transfer.
- an image can also be formed on the simple paper sheet.
- the measure of introducing microcapsules into the heat-sensitive recording layer gives e.g. in the case of an inlet control, the possibility of producing an image in the heat-sensitive recording layer by the action of pressure and in this way checking the authenticity of the paper used. If the microcapsules are e.g. destroyed a metal stamp, the released color formers react with the acceptors of the heat-sensitive recording layer and provide an image corresponding to the stamp impression.
- the color formers should preferably be selected so that there is a color contrast between the image generated by heat in the recording layer and the image formed by the released color formers in the recording layer.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19838893 | 1998-08-27 | ||
DE19838893A DE19838893C2 (en) | 1998-08-27 | 1998-08-27 | Heat sensitive recording sheet |
PCT/EP1999/006122 WO2000012321A1 (en) | 1998-08-27 | 1999-08-20 | Heat-sensitive recording sheet with a security element in the form of pressure-sensitive microcapsules |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1028853A1 true EP1028853A1 (en) | 2000-08-23 |
EP1028853B1 EP1028853B1 (en) | 2001-11-21 |
Family
ID=7878843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99944458A Expired - Lifetime EP1028853B1 (en) | 1998-08-27 | 1999-08-20 | Heat-sensitive recording sheet with a security element in the form of pressure-sensitive microcapsules |
Country Status (7)
Country | Link |
---|---|
US (1) | US6440898B1 (en) |
EP (1) | EP1028853B1 (en) |
JP (1) | JP2002523268A (en) |
AT (1) | ATE209109T1 (en) |
DE (2) | DE19838893C2 (en) |
ES (1) | ES2165240T3 (en) |
WO (1) | WO2000012321A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10113286A1 (en) | 2001-03-16 | 2002-10-02 | Mitsubishi Hitec Paper Flensbu | Heat sensitive recording sheet and its use |
FR2827618B1 (en) * | 2001-07-18 | 2003-10-03 | Banque De France | DOCUMENT SECURING PROCESS |
FR2876714B1 (en) * | 2004-10-20 | 2008-05-02 | Francois Charles Oberthur Fidu | SECURING METHOD OF VALUE DOCUMENTS |
DE102008005136A1 (en) * | 2008-01-16 | 2009-07-23 | U-Nica Technology Ag | Document and method for producing a document |
DE102013218754B4 (en) * | 2013-09-18 | 2019-05-09 | Bundesdruckerei Gmbh | Tamper-proofed value or security product and method for verifying the authenticity of the tamper-resistant security or value-added product |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT37053B (en) | 1908-04-24 | 1909-04-26 | Ignatz Dr Palocz | Inhalation device. |
JPS60168690A (en) * | 1984-02-13 | 1985-09-02 | Mitsubishi Paper Mills Ltd | Pressure-sensitive colorless thermal transfer recording paper |
FR2566440B1 (en) * | 1984-06-22 | 1988-07-22 | Jalon Michel | SECURITY FIBERS AND OTHER MATERIALS MADE LUMINESCENT BY A DYEING PROCESS, THEIR PROCESSES AND THEIR APPLICATIONS |
DE3601525A1 (en) | 1985-01-21 | 1986-07-24 | Mitsubishi Paper Mills, Ltd., Tokio/Tokyo | HEAT SENSITIVE AND HEAT TRANSFERABLE RECORD SHEET |
JPS62187080A (en) | 1986-02-13 | 1987-08-15 | Fuji Photo Film Co Ltd | Thermal recording material |
JPH0832484B2 (en) | 1988-11-25 | 1996-03-29 | 富士写真フイルム株式会社 | Multicolor recording material |
US5984363A (en) * | 1993-05-03 | 1999-11-16 | The Standard Register Company | Business record having a thermally imagable surface |
US5401060A (en) | 1993-06-14 | 1995-03-28 | Wallace Computer Services, Inc. | Document with heat and pressure sensitive chromogentic composition thereon |
US5395138A (en) * | 1993-06-14 | 1995-03-07 | Wallace Computer Services, Inc. | Security document verification system with pressure-rupturable microcapsules |
DE19501289A1 (en) * | 1995-01-18 | 1996-07-25 | Feldmuehle Ag Stora | Heat sensitive paper for thermal printing |
JP3614931B2 (en) * | 1995-05-10 | 2005-01-26 | 三菱製紙株式会社 | Recording sheet and forgery detection method |
-
1998
- 1998-08-27 DE DE19838893A patent/DE19838893C2/en not_active Expired - Fee Related
-
1999
- 1999-08-20 DE DE59900676T patent/DE59900676D1/en not_active Expired - Lifetime
- 1999-08-20 US US09/530,297 patent/US6440898B1/en not_active Expired - Lifetime
- 1999-08-20 EP EP99944458A patent/EP1028853B1/en not_active Expired - Lifetime
- 1999-08-20 JP JP2000567396A patent/JP2002523268A/en active Pending
- 1999-08-20 WO PCT/EP1999/006122 patent/WO2000012321A1/en active IP Right Grant
- 1999-08-20 AT AT99944458T patent/ATE209109T1/en not_active IP Right Cessation
- 1999-08-20 ES ES99944458T patent/ES2165240T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0012321A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE209109T1 (en) | 2001-12-15 |
DE59900676D1 (en) | 2002-02-21 |
US6440898B1 (en) | 2002-08-27 |
DE19838893A1 (en) | 2000-03-09 |
ES2165240T3 (en) | 2002-03-01 |
EP1028853B1 (en) | 2001-11-21 |
WO2000012321A1 (en) | 2000-03-09 |
JP2002523268A (en) | 2002-07-30 |
DE19838893C2 (en) | 2000-09-28 |
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