CA2098601A1 - Composition for detecting legitimacy of currency - Google Patents
Composition for detecting legitimacy of currencyInfo
- Publication number
- CA2098601A1 CA2098601A1 CA 2098601 CA2098601A CA2098601A1 CA 2098601 A1 CA2098601 A1 CA 2098601A1 CA 2098601 CA2098601 CA 2098601 CA 2098601 A CA2098601 A CA 2098601A CA 2098601 A1 CA2098601 A1 CA 2098601A1
- Authority
- CA
- Canada
- Prior art keywords
- currency
- iodine
- composition
- volume
- grams
- 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.)
- Abandoned
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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/14—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using chemical means
Abstract
A mixture of iodine powder, sodium iodide, purified water and ethyl alcohol forms a composition tincture which, when applied to currency, reacts with the ink therein to provide an indication of the genuineness of the currency.
Description
~YO93/1~416 2 ~ 9 8 6 ~ ~ PCT/US92/10977 Title: COMPOSITION FOR DETECTING LEGITIMACY OF CURRENCY
T~ hnica~ Field ~ his invention relates to a syste~ for determining the genuineness of currency, that is official script, or paper ~oney and, more partiaularly, to a composition which, when applied to the curr2ncy, will provide a ~isual indication as to its genuineness.
Backoround Art The problem of bogus counterfeit paper currency is, of course, an old one and is apparently very difficult to overcome. In the past, the only method to detect counterfeit currency was by a relatively long and sometimes tedious visual inspectionD Recently, complex equipment such as infrared inspection devices, magnetic thread detectors, and the like have been used. In ~oth instances, considerable time is spent, and the use of inspection devices re~uires considerable space and is so costly as not to be readily suitable in day-to-day activities such as, for example, in retail shops, banks, or the like.
It is the object of the present invention to provide a system for detecting the genuineness of paper currency which is easy to use and which overcomes the problems desaribed above.
It i~ the object o~ the present invention to provide a system ~or detecting the genuineness of paper currency which is extremely portable and which does not require any complex equipment or device.
It is a particular object of the present invention to provide a system utilizing a liquid composition which, when placed in contact with legitimate currency, turns the ink in such currency into one color and when placed in contact with currency that is counterfeit, turns the ink into another color.
It is still another object of the present invention to provide an applicator ~y which the liquid may be easily placed in contact with the currency.
YO93/1~416 ~ 9 8 ~1 PCT/~S92/10~77 The ~oregoing ob~ects as well as oth~rs will be app~ren~ ~rom ~he following disclosure o~ the invention.
Disclosure o~ Tnvention In accordance with the present invention, a liquid composition is provided whlch, when applied to a small portion o p~per currency, will react with the ink in such currenc~ to produce one or two colors, one color indicating the currency to be legitimate, and the other color ~eing indicative of counter~eit currencyO
In particular, the composi~ion of the present invention comprises a mixture of a relatively ~eak tincture of iodîne (USP), a relatively strong sodium iodide solution, and an ethyl alcohol as a solvent, thinned down by ~ater.
The inventive composition, when used, ~or example, on ~nite~ States currency, will turn the ink in a legitimate bill into a color ranging in hue from orange to yellow, while in a counterfeit bill it will change the ink to a color be~ween black, brown and gray. The precise color obtained will depend upon the various constituents of the composition and their relative strengths.
In accordance with other aspects of the present invention, the composition is such that it may be contained in a variet~ o~ dispensers such as a small bottle or a pen-~haped dispenser. Such dispensers will store the liquid and prevent it from becomin~ stale and will ena~le the application of the compositlon to a small and inconspicuous area of the bill.
Mode For CarrYinq out The Invention , 30 The composition of the present invention comprises 7.5 to 21.5 percent per volume of tincture of iodine (I), lO.0 to 6Q.0 percent per volume of sodium iodide (NaI), and 15 to 55 percent per volume of alcohol and lO to 48 percen~
purified water.
A weaker than normal tincture o~ iodine is preferred, ~aving not less than 0.75 and not more than 21.5 ~rams o~
iodine per lO0 ml of i~s carrier, conventionally denatured ~093/1~16 2 n~5~Jl PcT/US92tlO977 alcohol. on the other hand, a somewhat stronger solution of sodium iodide may be used, having no~ less than l.~ and I ~ not ~ore than 6.0 grams per volume of a similar alcohol ;! ~arrier.
The alcohol constituent of the composition is preferably ethyl alcohol (Cn.Hm.OH).
It has been found that-~the mixture of tincture of iodine and a sodium iodide enable~ the formation of a c~ -balanced composition wherein the resultant reaction with 13 th~ ~nk ~f the currency can be stabilized and made uniform for each currency value. In this manner, the usejwill neither be confused nor will he have to interprét the resulting color to determine whether it is legitimate or counterfeit.
A composit~on according to the invention which comprises the lower amount of each constituent as set forth in th~ above-mentioned ranges turns the ink in legitimate U.S. currency orange when placed in contact therewith and turn the ink in counterfeit U.S. currency black when placed in contact therewith. On the other hand, base solutions of ~ pc the upper amount of each constituent turn the înk in ~S~
legitimate U.S. currency yellow, whlle they turn the ink in counter~eit currency dark gray. Varying shades of orange to yellow and black to dark gray re~ult when amounts of the aonstituents are varied within the above-mentioned ranges as well as by variation of the relative volumes o~ tincture of iodine and o~ sodium ~odide.
The compositions of this invention are ~ormulated simply by adding alcohol to the constituents together at ambient temperatures (Q 20-25 degrees Celsius) and agitating tha mixture until a substantially homogeneous solution is attained and thinning it down with water.
The solution so obtained may then be employed by contact U.S. currency therewith by any convenient means such as, for example, an eye dropper or with a felt tip pen--the preferred and more convenient way. In this connection the compositions of the invention can be mixed .. .
.......... ~.. ,-.. ... .
l093/124I6 2 ~ 9 8 ~ O 1 PC~/US92/10977 4 ~
with a sui~able ~iller, such as a polyester ~ r or the lik~ and then dispensed through a felt tipped writing instrument or pen into contact ~ith U.S. currency to determine its legitimacy or whether it is counterfeit.
~h~ ~esultant mixed composition has a slightly yellowish color in its liguid ~orm and, ~hen applied to legitimate currency, appears to b~ merely translucent.
~hen applied to bogus currency, it not only turns blacker but it loses its translucency, making its change read~ly ;~
10- obvious to the user. Once the composition is applied to - t~e currenc~, it cannot be readily erased or washed away and, therefore, the fact that the ~ill is counterfeit will remain apparent until the bill is destroyed.
The following examples o~ compositions made in accordance with the present invention were prepared by mixing the constituent in a bowl, by hand, until homogeneous. Proportions are set forth as percentages per volume unless otherwise given.
I II III I~ V
20 Iodine ~5P) 5 21.5 7.5 10 15 Sodium Iodide 30 10 15~5 35 25 Ethyl Alaohol 55 55 45 15 50 Purified Water 10 13.5 32 40 10 Each of the examples was furth~ te~ using iodine having 1.~ and 2.2 grams per ml solution as well as using sodium iodide having 2.1 and 2.6 grams per ml solution. `~
Samples o~ each o~ the above compositions were loaded into felt tip pens such as the markers manu~actured by Dri ~l 3~ ~ark Products, Inc. o* Port Washington, NY, and were -~
applied to numerous legitimate and bogus bills in small, dot-like areas (approximately 1/4 inch diameters). on j legitimattt~ bills the stàin retains a yellowis~ translucent appe æance or a sligh~ly darker orange hue, while on bogus currency th~ stain turns into a blackish opaque color. The degree of intensity of yellow to orangt~ or gray to black . ` ' '` '' .
:~ ~
WO~3/12416 2 0 9 8 ~ 1 PCT/US92/10977 hue depend~d largely ont he degree of bogus fiber content in the currency and upon the proportion of each example.
It was found that when the iodine in th~ tincture and the sodium iodin~,in its solution fell below the limits of ~ P
1 8 and 2.1 grams, respectively, as defined above, ~ he composition was too transparent and too weaX even to r~act with the ink in the currency. On the other hand, when the limits exceeded the ~.2 and 2.6 grams, respectively, too much of a reaction occurred, and therefore, a spurious indication was even obtained in legitimate currency.
compositions according to-the invention present many advantages. For example, the various constituents in the composltian are readily available through normal convenient channels at relatively low costs. They are easy to e~ploy t~ make the inventive compositions simply by mixing the same in the required amounts and require no special equipment for formulating the same. N~merous other advantages of the compositions o~ this invention will be apparent to those skilled in the art.
Indust~ial APPlicabilitv ~ he present invention is useful in various financial, mercantile and similar establishments to prevent passin~
off and dissemination of counterfeit currency.
.
;'!
.
.
T~ hnica~ Field ~ his invention relates to a syste~ for determining the genuineness of currency, that is official script, or paper ~oney and, more partiaularly, to a composition which, when applied to the curr2ncy, will provide a ~isual indication as to its genuineness.
Backoround Art The problem of bogus counterfeit paper currency is, of course, an old one and is apparently very difficult to overcome. In the past, the only method to detect counterfeit currency was by a relatively long and sometimes tedious visual inspectionD Recently, complex equipment such as infrared inspection devices, magnetic thread detectors, and the like have been used. In ~oth instances, considerable time is spent, and the use of inspection devices re~uires considerable space and is so costly as not to be readily suitable in day-to-day activities such as, for example, in retail shops, banks, or the like.
It is the object of the present invention to provide a system for detecting the genuineness of paper currency which is easy to use and which overcomes the problems desaribed above.
It i~ the object o~ the present invention to provide a system ~or detecting the genuineness of paper currency which is extremely portable and which does not require any complex equipment or device.
It is a particular object of the present invention to provide a system utilizing a liquid composition which, when placed in contact with legitimate currency, turns the ink in such currency into one color and when placed in contact with currency that is counterfeit, turns the ink into another color.
It is still another object of the present invention to provide an applicator ~y which the liquid may be easily placed in contact with the currency.
YO93/1~416 ~ 9 8 ~1 PCT/~S92/10~77 The ~oregoing ob~ects as well as oth~rs will be app~ren~ ~rom ~he following disclosure o~ the invention.
Disclosure o~ Tnvention In accordance with the present invention, a liquid composition is provided whlch, when applied to a small portion o p~per currency, will react with the ink in such currenc~ to produce one or two colors, one color indicating the currency to be legitimate, and the other color ~eing indicative of counter~eit currencyO
In particular, the composi~ion of the present invention comprises a mixture of a relatively ~eak tincture of iodîne (USP), a relatively strong sodium iodide solution, and an ethyl alcohol as a solvent, thinned down by ~ater.
The inventive composition, when used, ~or example, on ~nite~ States currency, will turn the ink in a legitimate bill into a color ranging in hue from orange to yellow, while in a counterfeit bill it will change the ink to a color be~ween black, brown and gray. The precise color obtained will depend upon the various constituents of the composition and their relative strengths.
In accordance with other aspects of the present invention, the composition is such that it may be contained in a variet~ o~ dispensers such as a small bottle or a pen-~haped dispenser. Such dispensers will store the liquid and prevent it from becomin~ stale and will ena~le the application of the compositlon to a small and inconspicuous area of the bill.
Mode For CarrYinq out The Invention , 30 The composition of the present invention comprises 7.5 to 21.5 percent per volume of tincture of iodine (I), lO.0 to 6Q.0 percent per volume of sodium iodide (NaI), and 15 to 55 percent per volume of alcohol and lO to 48 percen~
purified water.
A weaker than normal tincture o~ iodine is preferred, ~aving not less than 0.75 and not more than 21.5 ~rams o~
iodine per lO0 ml of i~s carrier, conventionally denatured ~093/1~16 2 n~5~Jl PcT/US92tlO977 alcohol. on the other hand, a somewhat stronger solution of sodium iodide may be used, having no~ less than l.~ and I ~ not ~ore than 6.0 grams per volume of a similar alcohol ;! ~arrier.
The alcohol constituent of the composition is preferably ethyl alcohol (Cn.Hm.OH).
It has been found that-~the mixture of tincture of iodine and a sodium iodide enable~ the formation of a c~ -balanced composition wherein the resultant reaction with 13 th~ ~nk ~f the currency can be stabilized and made uniform for each currency value. In this manner, the usejwill neither be confused nor will he have to interprét the resulting color to determine whether it is legitimate or counterfeit.
A composit~on according to the invention which comprises the lower amount of each constituent as set forth in th~ above-mentioned ranges turns the ink in legitimate U.S. currency orange when placed in contact therewith and turn the ink in counterfeit U.S. currency black when placed in contact therewith. On the other hand, base solutions of ~ pc the upper amount of each constituent turn the înk in ~S~
legitimate U.S. currency yellow, whlle they turn the ink in counter~eit currency dark gray. Varying shades of orange to yellow and black to dark gray re~ult when amounts of the aonstituents are varied within the above-mentioned ranges as well as by variation of the relative volumes o~ tincture of iodine and o~ sodium ~odide.
The compositions of this invention are ~ormulated simply by adding alcohol to the constituents together at ambient temperatures (Q 20-25 degrees Celsius) and agitating tha mixture until a substantially homogeneous solution is attained and thinning it down with water.
The solution so obtained may then be employed by contact U.S. currency therewith by any convenient means such as, for example, an eye dropper or with a felt tip pen--the preferred and more convenient way. In this connection the compositions of the invention can be mixed .. .
.......... ~.. ,-.. ... .
l093/124I6 2 ~ 9 8 ~ O 1 PC~/US92/10977 4 ~
with a sui~able ~iller, such as a polyester ~ r or the lik~ and then dispensed through a felt tipped writing instrument or pen into contact ~ith U.S. currency to determine its legitimacy or whether it is counterfeit.
~h~ ~esultant mixed composition has a slightly yellowish color in its liguid ~orm and, ~hen applied to legitimate currency, appears to b~ merely translucent.
~hen applied to bogus currency, it not only turns blacker but it loses its translucency, making its change read~ly ;~
10- obvious to the user. Once the composition is applied to - t~e currenc~, it cannot be readily erased or washed away and, therefore, the fact that the ~ill is counterfeit will remain apparent until the bill is destroyed.
The following examples o~ compositions made in accordance with the present invention were prepared by mixing the constituent in a bowl, by hand, until homogeneous. Proportions are set forth as percentages per volume unless otherwise given.
I II III I~ V
20 Iodine ~5P) 5 21.5 7.5 10 15 Sodium Iodide 30 10 15~5 35 25 Ethyl Alaohol 55 55 45 15 50 Purified Water 10 13.5 32 40 10 Each of the examples was furth~ te~ using iodine having 1.~ and 2.2 grams per ml solution as well as using sodium iodide having 2.1 and 2.6 grams per ml solution. `~
Samples o~ each o~ the above compositions were loaded into felt tip pens such as the markers manu~actured by Dri ~l 3~ ~ark Products, Inc. o* Port Washington, NY, and were -~
applied to numerous legitimate and bogus bills in small, dot-like areas (approximately 1/4 inch diameters). on j legitimattt~ bills the stàin retains a yellowis~ translucent appe æance or a sligh~ly darker orange hue, while on bogus currency th~ stain turns into a blackish opaque color. The degree of intensity of yellow to orangt~ or gray to black . ` ' '` '' .
:~ ~
WO~3/12416 2 0 9 8 ~ 1 PCT/US92/10977 hue depend~d largely ont he degree of bogus fiber content in the currency and upon the proportion of each example.
It was found that when the iodine in th~ tincture and the sodium iodin~,in its solution fell below the limits of ~ P
1 8 and 2.1 grams, respectively, as defined above, ~ he composition was too transparent and too weaX even to r~act with the ink in the currency. On the other hand, when the limits exceeded the ~.2 and 2.6 grams, respectively, too much of a reaction occurred, and therefore, a spurious indication was even obtained in legitimate currency.
compositions according to-the invention present many advantages. For example, the various constituents in the composltian are readily available through normal convenient channels at relatively low costs. They are easy to e~ploy t~ make the inventive compositions simply by mixing the same in the required amounts and require no special equipment for formulating the same. N~merous other advantages of the compositions o~ this invention will be apparent to those skilled in the art.
Indust~ial APPlicabilitv ~ he present invention is useful in various financial, mercantile and similar establishments to prevent passin~
off and dissemination of counterfeit currency.
.
;'!
.
.
Claims (4)
1. A composition for determining the genuineness of U.S. currency, which when placed in contact with legitimate U.S. currency, reacts with the ink in said currency to create a first color when the currency is legitimate and which when placed in contact with counterfeit U.S.
currency, creates a second color, whereby the legitimacy of said currency can be determined said composition comprising a mixture of 7.5% to 21.5% by volume of tincture of iodine (USP), 10 to 60% by volume of sodium iodide, and 15-55% by volume of ethyl alcohol, and 10-48% purified water.
currency, creates a second color, whereby the legitimacy of said currency can be determined said composition comprising a mixture of 7.5% to 21.5% by volume of tincture of iodine (USP), 10 to 60% by volume of sodium iodide, and 15-55% by volume of ethyl alcohol, and 10-48% purified water.
2. The composition according to Claim 1, wherein said tincture of iodine contains at least 0.75 grams of iodine and no more than 21.5 grams of iodine per 100 ml of solution.
3. The composition according to Claim 1, wherein said sodium iodide contains at least 1.0 grams of iodine and nomore than 6.0 grams of sodium iodine per 100 ml of solution.
4. Apparatus for determining the genuineness of U.S.
currency comprising a pen, having a hollow barrel, closed at one end and having a felt writing tip at the other end, provided with a polyester absorbent filler, said hollow barrel providing a reservoir for a liquid detector comprising a mixture of 7.5% to 21.5% by volume of iodine (USP), 10 to 60% by volume of sodium iodide, and 15-55% by volume of ethyl alcohol, and 10-48% purified water, said polyester Filler absorbing said mixture for dispensing in contact with the currency whereby said mixture changes color to identify counterfeit currency.
currency comprising a pen, having a hollow barrel, closed at one end and having a felt writing tip at the other end, provided with a polyester absorbent filler, said hollow barrel providing a reservoir for a liquid detector comprising a mixture of 7.5% to 21.5% by volume of iodine (USP), 10 to 60% by volume of sodium iodide, and 15-55% by volume of ethyl alcohol, and 10-48% purified water, said polyester Filler absorbing said mixture for dispensing in contact with the currency whereby said mixture changes color to identify counterfeit currency.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80958591A | 1991-12-17 | 1991-12-17 | |
| US07/809,585 | 1991-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2098601A1 true CA2098601A1 (en) | 1993-06-18 |
Family
ID=25201684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2098601 Abandoned CA2098601A1 (en) | 1991-12-17 | 1992-12-16 | Composition for detecting legitimacy of currency |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU3328093A (en) |
| CA (1) | CA2098601A1 (en) |
| WO (1) | WO1993012416A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9605627D0 (en) * | 1996-03-18 | 1996-05-22 | Critchley David J | Security paper & note checker |
| ES2223292B1 (en) * | 2003-08-07 | 2006-02-16 | Jose Maria Fraile Rodrigo | REACTIVE DISSOLUTION TO DETECT CURRENCY PAPER FAKES. |
| WO2009134965A2 (en) | 2008-04-30 | 2009-11-05 | Polyonics, Inc. | Method and apparatus for the detection of counterfeiting |
| GB2508791A (en) * | 2012-08-06 | 2014-06-18 | First Swipe Ltd | Counterfeiting detection pen that can be worn on users finger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5063163A (en) * | 1990-03-20 | 1991-11-05 | Ach Group, Inc. | Method of detecting counterfeit paper currency |
-
1992
- 1992-12-16 AU AU33280/93A patent/AU3328093A/en not_active Withdrawn
- 1992-12-16 WO PCT/US1992/010977 patent/WO1993012416A1/en active Application Filing
- 1992-12-16 CA CA 2098601 patent/CA2098601A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU3328093A (en) | 1993-07-19 |
| WO1993012416A1 (en) | 1993-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |