WO2008044494A1 - Polymère pour la détection d'empreintes digitales, procédé de production dudit polymère, composition pour la détection d'empreintes digitales et procédé associé - Google Patents
Polymère pour la détection d'empreintes digitales, procédé de production dudit polymère, composition pour la détection d'empreintes digitales et procédé associé Download PDFInfo
- Publication number
- WO2008044494A1 WO2008044494A1 PCT/JP2007/069007 JP2007069007W WO2008044494A1 WO 2008044494 A1 WO2008044494 A1 WO 2008044494A1 JP 2007069007 W JP2007069007 W JP 2007069007W WO 2008044494 A1 WO2008044494 A1 WO 2008044494A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fingerprint
- polymer
- fingerprint detection
- cyanoacrylate
- fluorescent dye
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/117—Identification of persons
- A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
- A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
Definitions
- Fingerprint detection polymer production method thereof, fingerprint detection composition, and fingerprint detection method using the same
- the present invention relates to fingerprint detection in the field of identification technology.
- Fingerprint detection using 2-cyanacrylate is a force commonly used to attach 2-cyanacrylate (monomer) vapor to the fingerprint, as described in Patent Document 1.
- a method using a product a method in which 2-cyanacrylate (monomer) is dropped into a powder as described in Patent Document 2, and a 2-cyanacrylate (monomer) in Patent Document 3
- a method of spraying 2-cyanoacrylate (monomer) on a fabric or a non-woven fabric as described in Patent Document 4 and various reports have been made on its details.
- a method of mixing and spraying a fluorescent dye in a 2-cyanacrylate solution as described in Patent Document 5, and after attaching 2-cyanacrylate to a fingerprint as in Patent Document 6 , 2-cyanacrylate by soaking in a solution of fluorescent dye and detecting color Detection can be made with high sensitivity by adding a fluorescent dye to the fingerprint ridges of the polymer to produce a fluorescent color.
- the 2-cyanacrylate polymer is difficult to wipe off when the specimen is returned to its original state after fingerprint detection in any case, and the reducing property is high. There was a problem of being bad.
- Patent Document 1 JP-A-60-502088
- Patent Document 2 JP-A-60-222033
- Patent Document 3 Japanese Patent Application Laid-Open No. 61-288836
- Patent Document 4 JP-A 62-47343
- Patent Document 5 Japanese Unexamined Patent Publication No. 63-161939
- Patent Document 6 Japanese Patent Laid-Open No. 02-268744
- Patent Document 7 JP-A-11 9575
- An object of the present invention is to provide a specific polymer and composition that can be easily handled in the field for detecting fingerprints, instead of the conventionally used 2-cyanacrylate (monomer). .
- the present invention provides a fingerprint detection method that can detect fingerprints with high sensitivity regardless of the color and state of the sample and has good sample reducibility.
- reducibility and Is easy to wipe off when removing the fingerprint ridges from the specimen.
- the present inventors have found that a polymer obtained by reacting 2-cyanacrylate with a specific fluorescent dye or a 2-cyanacrylate polymer and a specific fluorescence. It was found that when a composition containing a functional dye was used, it was easy to handle in the field and highly sensitive fingerprint detection was possible. Furthermore, when the polymer or composition is used for fingerprint detection, an unexpected fact that the reducibility of the sample is improved is found, and the present invention has been completed.
- the present invention has the following configuration.
- R1 and R2 in the formula are alkyl groups having 1 to 3 carbon atoms, and R3 is an aldehyde group or an alkyl group or alkenyl group having 1 to 6 carbon atoms having an aldehyde group at the terminal.
- the above fluorescent dyes are p-dimethylaminobenzaldehyde, p-jetylaminobenzaldehyde, p-dipropylaminobenzaldehyde, p-dimethylaminocinnamaldehyde.
- the above 2 cyanoacrylates are methyl 2 cyanoacrylate and ethyl 2 cyanoa.
- a method for producing a fingerprint detection polymer as described in 5) above which comprises a third step of distilling off the solvent after polymerization of cyanoacrylate.
- the above fluorescent dyes are p-dimethylaminobenzaldehyde, p-jetylaminobenzaldehyde, p-dipropylaminobenzaldehyde, p-dimethylaminocinnamaldehyde.
- the above-mentioned 2-cyanoacrylate is selected from methyl 2-cyanoacrylate, ethyl 2-ciano acrylate, propyl-2-cyanoacrylate, and isopropyl-2-cyanoacrylate.
- a method for producing a fingerprint detection polymer is selected from methyl 2-cyanoacrylate, ethyl 2-ciano acrylate, propyl-2-cyanoacrylate, and isopropyl-2-cyanoacrylate.
- a fingerprint detection composition comprising a 2-cyanacrylate polymer polymerized with a polymerization initiator other than formula (1) and a fluorescent dye represented by formula (1).
- composition for fingerprint detection according to 12) above, wherein the polymerization initiator other than the formula (1) is water, methanol, or amine.
- a fingerprint detection method characterized in that it is attached to a fingerprint and a fingerprint ridge line image is obtained by a fluorescent image.
- the fingerprint detection polymer obtained by the method for producing a fingerprint detection polymer described in item 1 is vaporized by heating and attached to the fingerprint, and a fluorescent image
- a fingerprint detection method characterized in that a fingerprint line image is obtained.
- a fingerprint detection method characterized in that the fingerprint detection composition as described in 12) or 13) above is vaporized by heating and attached to the fingerprint, and a fingerprint raised line image is obtained by a fluorescent image.
- the depolymerization initiation temperature due to heating of a 2-cyanacrylate polymer is around 200 ° C, and if a high temperature is used near the specimen, the specimen may be damaged.
- the depolymerization initiation temperature decreased due to the influence of the initiation terminal group, and gas was generated at a relatively low temperature (130 to 160 ° C or so). It became possible.
- mixing the fluorescent dye with pre-polymerized 2-cyanoacrylate and heating it also causes some polymerization using the fluorescent dye as a starting species during depolymerization. The effect of lowering the depolymerization start temperature was observed.
- the fingerprint detection polymer and the fingerprint detection composition according to the present invention can detect a fingerprint quickly and with high sensitivity regardless of the color and state of the specimen.
- the polymer and the composition have good reducibility of the sample and excellent handling properties.
- the 2-cyanoacrylate used in the present invention includes methyl-2-cyanoacrylate, ethyl 2-cyanoacrylate, propyl-2-cyanoacrylate, isopropyl-2-cyanoacrylate, butyl-2-cyanoate.
- Fluorescent dyes of the following formula (1) used in the present invention include p-dimethylaminobenzaldehyde, p-decylaminobenzaldehyde, p-dipropylaminobenzaldehyde propylaminocinnamaldehyde, 5- (4-dimethylamino-) (Phenyl) Penter 2,4 Genal, 5- (4-Jetylamino-phenyl) Penter 2,4 Genal, 5- (4-Dipropylamino-phenyl) Penter 2,4 Genal and the like. These fluorescent dyes are not limited to one type, and two or more types can be used in combination. Among these, p-dimethylaminobenzaldehyde and p-dimethylaminocinnamaldehyde are preferable from the viewpoint of entrainment with 2-cyanoacrylate monomers depolymerized.
- R1 and R2 in the formula are alkyl groups having 1 to 3 carbon atoms, and R3 is an aldehyde group or an alkyl group or alkenyl group having 1 to 6 carbon atoms having an aldehyde group at the terminal.
- the amount of the fluorescent dye to be used is determined by adding an arbitrary amount to 2 cyanoacrylate and mixing it with force S.
- the fingerprint detection polymer according to the present invention is obtained as follows.
- An acetone solution of 2-cyanacrylate (monomer) is added to the acetone solution of the fluorescent dye of the present invention, and after polymerization in acetone, the acetone is distilled off (hereinafter, the polymer is referred to as a reaction polymer). ).
- the reaction polymer is crushed into a powder.
- a 2-cyanacrylate polymer polymerized with a polymerization initiator other than the formula (1) according to the present invention A composition containing the coalescence and a specific fluorescent dye (hereinafter referred to as a mixed powder) is obtained as follows.
- 2-Cyanoacrylate (monomer) is polymerized in advance using water, methanol, amine, etc. as the starting species, and a purified polymer is obtained by reprecipitation with methanol, etc., and the fluorescent dye of the present invention is added thereto and mixed. To do.
- Ethyl 2-cianoacrylate (Alon Alpha 201, manufactured by Toagosei Co., Ltd.) and a reactive polymer or mixed powder using a fluorescent dye shown in Table 1 0.2 g in a glass container (280 X 280 X 300mm) Vaporized and vaporized (150-240, CX 20 minutes), attached to the latent fingerprint on the aluminum foil shelled on the container wall, and detected the fluorescent fingerprint and evaluated the reducing ability.
- thermogravimetric analysis TGA was performed, and the vaporization start temperature was determined by the tangential method using a TGA chart.
- Echiru 2 Xia cyanoacrylate 10 g 1 wt 0/0 was added water-containing methanol 3ml to and left polymerizing one or more days at 25 ° C. This polymer was dissolved in 300 ml of acetone, and then the acetone solution was reprecipitated in 200 ml of methanol in three portions, followed by suction filtration and drying under reduced pressure to obtain ethyl 2-cyanacrylate polymer powder.
- This ethyl 2-cyanoacrylate polymer powder and the fluorescent dyes shown in Table 1 were mixed in the proportions shown in the table and used for the test.
- Fingerprints detected using polymers and mixtures of fluorescent dyes other than dimethylbenzaldehyde are irradiated with ultraviolet to blue light (blue LED, 475 nm).
- a fluorescent fingerprint image was observed using a filter that cuts.
- fluorescent fingerprint images were observed using a filter that cuts off the irradiated light by irradiating with ultraviolet light (UV lamp, 365 nm). .
- UV lamp ultraviolet lamp
- 365 nm ultraviolet light
- the degree of fluorescent fingerprint detection was evaluated as follows.
- the fingerprint ridges adhering to the aluminum foil were rubbed with a cotton swab 5 times, and the removal of the fingerprint ridges was observed.
- the degree of reducibility was evaluated as follows.
- Fingerprint ridges can be completely or almost removed.
- the fingerprint detection polymer and the fingerprint detection composition according to the present invention and the fingerprint detection method using these, in a near-white sample such as a shopping bag or an aluminum foil that has been difficult to detect so far It became possible to detect fluorescence clearly. In addition, because it is dry and vaporizes at a relatively low temperature, it has become possible to minimize damage to the specimen. Further, in the case of a metal sample such as aluminum, the reducibility of the sample was good. This ensures the detection of latent fingerprints for a wide range of specimens that could not be used in the past.
- FIG. 1 is a photograph showing a fluorescence fingerprint detection result.
- the upper half shows Comparative Example 5, and the lower half shows Example 4.
- FIG. 2 is a photograph showing the result of fluorescent fingerprint detection.
- the upper half shows Comparative Example 5, and the lower half shows Example 7. Sono 3] This is a photograph showing the reduction test results.
- the upper half is Comparative Example 5 and the lower half is Example 8, which shows a partially wiped state.
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- Medical Informatics (AREA)
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008538644A JP5051134B2 (ja) | 2006-10-06 | 2007-09-28 | 指紋検出用重合体、その製造方法及び指紋検出用組成物、並びにこれらを用いた指紋検出方法 |
US12/311,606 US8268919B2 (en) | 2006-10-06 | 2007-09-28 | Polymer for detecting fingerprint, method of producing the same, composition for detecting fingerprint and method of detecting fingerprint using the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-274958 | 2006-10-06 | ||
JP2006274958 | 2006-10-06 |
Publications (1)
Publication Number | Publication Date |
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WO2008044494A1 true WO2008044494A1 (fr) | 2008-04-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/069007 WO2008044494A1 (fr) | 2006-10-06 | 2007-09-28 | Polymère pour la détection d'empreintes digitales, procédé de production dudit polymère, composition pour la détection d'empreintes digitales et procédé associé |
Country Status (3)
Country | Link |
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US (1) | US8268919B2 (ja) |
JP (1) | JP5051134B2 (ja) |
WO (1) | WO2008044494A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009056110A (ja) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | 指紋検出装置及び方法 |
JP2010213837A (ja) * | 2009-03-16 | 2010-09-30 | Sky Science Co Ltd | 指紋検出方法 |
WO2010109222A1 (en) * | 2009-03-24 | 2010-09-30 | University Of Leicester | Method of visualising a (finger) print on a surface |
KR101447099B1 (ko) | 2013-05-22 | 2014-10-07 | 경북대학교 산학협력단 | 방화현장 지문 검출을 위한 그을음 제거용 조성물 |
US9655550B2 (en) | 2012-10-25 | 2017-05-23 | Earth Chemical Co., Ltd. | Latent fingerprint detection method, heating evaporation device for detecting latent fingerprint, latent fingerprint detection apparatus, and composition for detecting latent fingerprint |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US8272343B1 (en) * | 2005-11-29 | 2012-09-25 | Weaver David E | Fingerprint goggles |
FR2972535B1 (fr) * | 2011-03-07 | 2014-05-02 | Crime Scene Technology | Trousse de revelation comprenant une tetrazine et un cyanoacrylate, procede de co-fumigation d'une tetrazine et d'un cyanoacrylate |
CN103417220A (zh) * | 2012-05-18 | 2013-12-04 | 温州大学 | 502胶与显色剂用于潜指纹显现的方法 |
US9750436B1 (en) | 2014-04-11 | 2017-09-05 | Air Science Usa Llc | Method for detecting fingerprints |
WO2017018373A1 (ja) * | 2015-07-29 | 2017-02-02 | 東亞合成株式会社 | 潜在指紋検出用組成物 |
US10866188B2 (en) | 2018-04-04 | 2020-12-15 | Board Of Trustees Of Northern Illinois University | Fingermark lifting and visualization device and methods of use thereof |
CN111317483A (zh) * | 2018-12-17 | 2020-06-23 | 深圳先进技术研究院 | 一种用于潜指纹显现的aie复合材料及其制备方法和显现潜指纹的方法 |
CN113773831B (zh) * | 2021-08-25 | 2022-09-20 | 湖北大学 | 一种检测淀粉样蛋白聚集体的荧光探针及其制备方法和应用 |
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JPH06165771A (ja) * | 1992-09-10 | 1994-06-14 | Toagosei Chem Ind Co Ltd | 指紋検出液および指紋検出方法 |
JPH1199777A (ja) * | 1997-09-29 | 1999-04-13 | Mitsubishi Chemical Corp | カードに識別符号を付す方法 |
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JPS56135455A (en) * | 1980-03-27 | 1981-10-22 | Toagosei Chem Ind Co Ltd | Novel 2-cyanoacrylate and curable composition |
JPS6022203A (ja) | 1983-07-19 | 1985-02-04 | Toshiba Corp | プロセス制御装置 |
US4477607A (en) | 1983-08-31 | 1984-10-16 | Loctite Corporation | Thixotropic cyanoacrylate compositions |
US4504408A (en) * | 1983-09-23 | 1985-03-12 | Morton William P | Fluorescent vapor fumes for use with a self-contained fingerprinting kit |
JPS61288836A (ja) | 1985-06-17 | 1986-12-19 | 田岡化学工業株式会社 | 指紋の検出方法 |
JPS6247343A (ja) | 1985-08-28 | 1987-03-02 | 東亞合成株式会社 | 指紋検出具 |
JPS63161939A (ja) | 1986-12-26 | 1988-07-05 | 川崎製鉄株式会社 | 指紋検出方法 |
JP2574458B2 (ja) | 1989-04-12 | 1997-01-22 | 川崎製鉄株式会社 | 指紋検出方法 |
DE4112315A1 (de) * | 1991-04-16 | 1992-10-22 | Henkel Kgaa | Aktivator fuer cyanacrylat-klebstoffe |
WO1998020344A1 (en) * | 1996-11-08 | 1998-05-14 | The Trustees Of The University Of Pennsylvania | Compositions and methods for detection of an amine compound |
JPH119575A (ja) | 1997-06-19 | 1999-01-19 | Mitsubishi Chem Corp | 指紋の検出方法 |
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- 2007-09-28 JP JP2008538644A patent/JP5051134B2/ja active Active
- 2007-09-28 US US12/311,606 patent/US8268919B2/en active Active
- 2007-09-28 WO PCT/JP2007/069007 patent/WO2008044494A1/ja active Application Filing
Patent Citations (2)
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JPH06165771A (ja) * | 1992-09-10 | 1994-06-14 | Toagosei Chem Ind Co Ltd | 指紋検出液および指紋検出方法 |
JPH1199777A (ja) * | 1997-09-29 | 1999-04-13 | Mitsubishi Chemical Corp | カードに識別符号を付す方法 |
Non-Patent Citations (1)
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SODHI G.S. ET AL.: "A Fingerprint Powder Formulation Involving Yellow Dye", RESEARCH AND PRACTICE IN FORENSIC MEDICINE, vol. 47, 30 November 2004 (2004-11-30), pages 237 - 238, XP003018746 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009056110A (ja) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | 指紋検出装置及び方法 |
JP2010213837A (ja) * | 2009-03-16 | 2010-09-30 | Sky Science Co Ltd | 指紋検出方法 |
WO2010109222A1 (en) * | 2009-03-24 | 2010-09-30 | University Of Leicester | Method of visualising a (finger) print on a surface |
US9655550B2 (en) | 2012-10-25 | 2017-05-23 | Earth Chemical Co., Ltd. | Latent fingerprint detection method, heating evaporation device for detecting latent fingerprint, latent fingerprint detection apparatus, and composition for detecting latent fingerprint |
KR101447099B1 (ko) | 2013-05-22 | 2014-10-07 | 경북대학교 산학협력단 | 방화현장 지문 검출을 위한 그을음 제거용 조성물 |
Also Published As
Publication number | Publication date |
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JPWO2008044494A1 (ja) | 2010-02-12 |
US8268919B2 (en) | 2012-09-18 |
US20100047433A1 (en) | 2010-02-25 |
JP5051134B2 (ja) | 2012-10-17 |
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