JPH02268744A - Method for detecting fingerprint - Google Patents
Method for detecting fingerprintInfo
- Publication number
- JPH02268744A JPH02268744A JP1090760A JP9076089A JPH02268744A JP H02268744 A JPH02268744 A JP H02268744A JP 1090760 A JP1090760 A JP 1090760A JP 9076089 A JP9076089 A JP 9076089A JP H02268744 A JPH02268744 A JP H02268744A
- Authority
- JP
- Japan
- Prior art keywords
- fingerprint
- examined
- gas
- solution
- cyanoacrylate
- 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
- 238000000034 method Methods 0.000 title claims description 40
- 229920001651 Cyanoacrylate Polymers 0.000 claims abstract description 17
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000007850 fluorescent dye Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 7
- 238000011282 treatment Methods 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 17
- 238000007796 conventional method Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008575 Pinus pinea Nutrition 0.000 description 1
- 240000007789 Pinus pinea Species 0.000 description 1
- -1 acetone Next Chemical class 0.000 description 1
- 239000000999 acridine dye Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- YQGOJNYOYNNSMM-UHFFFAOYSA-N eosin Chemical compound [Na+].OC(=O)C1=CC=CC=C1C1=C2C=C(Br)C(=O)C(Br)=C2OC2=C(Br)C(O)=C(Br)C=C21 YQGOJNYOYNNSMM-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 239000001022 rhodamine dye Substances 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野」
本発明は、鑑識技術分野における指紋検出技術に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to fingerprint detection technology in the field of forensic technology.
〔従来の技術］
現在の潜在指紋検出方法には、アルミニウム、石松子な
どの微粉末を指紋成分中の水分および脂肪分に付着させ
て物体と粉末との色調差を利用する固体法、指紋成分中
に含有されるアミノ酸や無機イオンなどに化学薬品を反
応させ呈色させる液体法、指紋成分中の脂肪分にヨウ素
ガスを反応させ呈色させる方法や国際公開ＷＯ８５１０
０９６３号公報に示されるようなシアノアクリレートガ
スで指紋隆線部を固着化させ、さらには白色化させる方
法などに代表される気体法がある。[Prior art] Current latent fingerprint detection methods include a solid state method in which fine powder such as aluminum or stone pine is attached to moisture and fat in the fingerprint component and the difference in color tone between the object and the powder is utilized; A liquid method in which chemicals are reacted with the amino acids and inorganic ions contained in the fingerprint to create a color, a method in which iodine gas is reacted with the fat in the fingerprint component to create a color, and International Publication WO8510
There are gas methods, such as the method disclosed in Japanese Patent No. 0963, in which fingerprint ridges are fixed with cyanoacrylate gas and further whitened.
多くの検体については、これらの方法を使用することに
より検出が可能であるが１表面に複雑な模様のある紙弊
、新建材のように表面に高分子被膜が施されていて指紋
の付着しにくいもの、あるいは感熱紙や水溶紙など熱や
水に弱いため液体法の使えない特殊紙など最近では従来
法の適用だけでは検出の難かしい例が多く見られるよう
になってきた。Many specimens can be detected using these methods; however, there are many specimens that can be detected, such as paper with complicated patterns on the surface, or materials with polymeric coatings on the surface such as new construction materials, which may attract fingerprints. Recently, there have been many cases where it is difficult to detect using conventional methods, such as paper that is difficult to detect, or special paper such as thermal paper or water-soluble paper that cannot be used with liquid methods because it is sensitive to heat and water.
以上の欠点を補う方法として高出力、単色光照射により
生ずる蛍光を利用する方法、通常はレーザ法が、例えば
次の文献１）、２）に提案されている。As a method for compensating for the above-mentioned drawbacks, a method using fluorescence generated by high-power, monochromatic light irradiation, usually a laser method, has been proposed, for example, in the following documents 1) and 2).
１ ） Ｅ、 Ｒ，Ｍｅ ｎ ｚ
ｅ ｌ ： ＩｄｅｎｔｉｆｉｃａｔｉｏｎＮｅ
ｗｓ、 Ｉｎｔｅｒｎａｔｉｏｎａｌ Ａｓ５ｏｃ
ｉａｔｉｏｎ ｆｏｒ Ｉｄｅｎｔｔｆｉｃａｔｉ
ｏｎ、 Ｖｏｌ、ＸＸＸ ｍ、 Ｎｏ、９ （
Ｓｅ（ｄｅｍｂｅｒ １９８．３１２Ｊ Ｒ，
Ｄ、 Ｏｌ ｓ ｅ ｎ ： Ｉｄｅｎｔ
ｉｆｉｃａｔ、１ｏｎＮｅｗｓ、 Ｉｎｔｅｒｎａｔ
ｉｏｎａｌ Ａｓ５ｏｃｉａｔｉｏｎ ｆｏｒ
Ｉｄｅｎｔｉｆｉｃａｔｉｏｎ、 Ｖｏｌ、 ＸＸ
ＸＩＶ、 Ｎｏ、４ （Ａｐｒｉｌ １９８４）
このレーザ法では通常、指紋隆線からの発光を強調する
ために蛍光性を有する色素？８液に接触させたり、化学
処理により蛍光性を増すなどの処理を行うことが多くな
った。1) E, R, Men z
e l :IdentificationNe
ws, International As5oc
ation for Identification
on, Vol, XXX m, No, 9 (
Se(dember 198.312J R,
D. Olsen: Ident
ificat, 1onNews, International
ional As5ocation for
Identification, Vol, XX
XIV, No. 4 (April 1984)
This laser method usually uses fluorescent dyes to enhance the emission from the fingerprint ridges? Treatments such as contacting with 8 liquids or chemical treatments to increase fluorescence have become more common.
これらは一般に前処理または事前処理と呼ばれており１
例＾ば、本発明者らは特開昭６３−１６１９３９号およ
び特開昭６３−１６１９４０号においてスプレー塗布を
用いる手法を提案している。These are generally called pre-processing or pre-processing1.
For example, the present inventors have proposed a method using spray coating in JP-A-63-161939 and JP-A-63-161940.
また、紫外線照射による検出方法の前処理については、
例えば特開昭６１−５８６３７号に教示されている。In addition, regarding the pretreatment of the detection method using ultraviolet irradiation,
For example, it is taught in Japanese Patent Application Laid-Open No. 61-58637.
検体が銃刀、ナイフなどのような比較的小さなものの場
合は、実開昭６１−１７４９０３号に教示されているよ
うな反応箱と、特開昭６１−１５４５３７号に教示され
ているような前処理方法とを組み合わせて指紋隆線部か
ら発せられる蛍光を強調する方法も実施されている。If the specimen is relatively small, such as a rifle or knife, a reaction box as taught in Japanese Utility Model Application No. 61-174903 and a pretreatment method as taught in Japanese Patent Application Publication No. 61-154537 are used. A method has also been implemented in which the fluorescence emitted from the fingerprint ridges is emphasized by combining the methods.
しかし、これらの前処理手法では、指紋成分を固着化す
るための溶液をスプレー塗布するため、噴霧液の圧力で
指紋隆線が崩れたり、指紋成分の主成分である水分が噴
霧液中の有機溶媒により流されたりすることがあった。However, in these pretreatment methods, since a solution is sprayed to fix the fingerprint components, the fingerprint ridges may collapse due to the pressure of the spray solution, or the water, which is the main component of the fingerprint component, may Sometimes it was washed away by the solvent.
さらに、指紋の固着化処理を行うために使用する反応箱
は、大きさに制限があるため、壁や家具などの処理には
適していなかった。また、これらの処理工程では、反応
箱中での操作や５蒸気化させるステップを必要とするの
で工程が複雑となり、実用上の難点があった。Furthermore, the reaction box used to perform the fingerprint fixation process has a size limit, so it is not suitable for treating walls, furniture, etc. In addition, these processing steps require operations in a reaction box and five vaporization steps, making the steps complex and causing practical difficulties.
【発明が解決しようとする課題１
本発明は、前述の欠点に鑑みて、このような手法をさら
に発展させ、新たな指紋検出用処理剤を開発し、従来法
に比し簡便、迅速で、かつ指紋隆線部を崩すことのない
安定した前処理手法について検討し、これを実現したも
のである。[Problem to be Solved by the Invention 1] In view of the above-mentioned drawbacks, the present invention further develops such a method and develops a new processing agent for fingerprint detection, which is simpler and faster than the conventional method. We have also studied and realized a stable preprocessing method that does not destroy the fingerprint ridges.
本発明は、光照射による指紋検出において、蛍光強度を
増し、１１検体を損なうことなく、かつ、より効率的な
指紋像を得るための指紋検出方法を提供することを課題
とするものである。An object of the present invention is to provide a fingerprint detection method that increases fluorescence intensity in fingerprint detection by light irradiation, does not damage 11 specimens, and obtains a more efficient fingerprint image.
〔課題を解決するための手段１
本発明は、光照射により生ずる蛍光を用いて指紋を検出
するにあたり。[Means for Solving the Problems 1] The present invention detects fingerprints using fluorescence generated by light irradiation.
シアノアクリレートガスを被検体表面に接触させて徐々
に被着せしめた後、さらに有機溶媒中に蛍光性色素を溶
解させた溶液をＦＪ１検体に接触せしめ、被検体表面の
溶液を乾燥させた被検体表面に特定波長成分を有する光
を照射し被検体表面に付着した指紋成分からの蛍光像に
より、指紋隆起線像を得ることを特徴とする指紋検出方
法である。A specimen in which cyanoacrylate gas was brought into contact with the surface of the specimen to gradually adhere to it, and then a solution of a fluorescent dye dissolved in an organic solvent was brought into contact with the FJ1 specimen, and the solution on the surface of the specimen was dried. This fingerprint detection method is characterized by irradiating the surface with light having a specific wavelength component and obtaining a fingerprint ridge image using a fluorescent image from the fingerprint components attached to the surface of the subject.
［作用ｊ
前述したように光照射法の代表例であるレーザ蛍光法に
より指紋を検出する技術においては、指紋隆線部を固着
化するために、指紋残留物中の水分や脂肪分と重合反応
するシアノアクリレートを有ｍ溶媒に溶解させ、この溶
液を噴霧塗布する方法や、指紋の付着している検体をシ
アノアクリレートのガスを発生させる反応箱の中に入れ
、シアノアクリレートを指紋隆線部に固着化させる方法
が一般的に適用されている。[Function j] As mentioned above, in the technology of detecting fingerprints using the laser fluorescence method, which is a typical example of the light irradiation method, in order to fix the fingerprint ridges, a polymerization reaction is performed with the moisture and fat in the fingerprint residue. There is a method of dissolving cyanoacrylate in a solvent and spraying this solution, or placing a specimen with fingerprints in a reaction box that generates cyanoacrylate gas and applying cyanoacrylate to the ridges of the fingerprint. A method of fixation is generally applied.
また、蛍光を強めるためにローダミン系などの色素を水
またはアルコール類に溶解させて塗布することが行われ
ている。Furthermore, in order to intensify fluorescence, dyes such as rhodamine are dissolved in water or alcohol and applied.
本発明方法は、以上のような操作に替え、シアノアクリ
レートのガスを検体に吹付け、潜在指紋を固定した後、
蛍光強調用の溶液をスプレー塗布するものである。In the method of the present invention, instead of the above operations, cyanoacrylate gas is sprayed onto the specimen to fix the latent fingerprint, and then,
A solution for fluorescence enhancement is applied by spraying.
従って、シアノアクリレートガスを被着させるに際し、
従来のように、噴霧液の圧力で指紋隆線が崩れたり、指
紋成分の主成分である水分が噴霧液中の有機溶媒により
流されるようなことはなくまた１反応箱を使用していな
いので被検体の大きさに制限がなく、移動できない壁や
大型の家具などにも適用でき、かつ迅速な処理を行うこ
とができる。Therefore, when depositing cyanoacrylate gas,
Unlike conventional methods, the fingerprint ridges do not collapse under the pressure of the spray liquid, and the water, which is the main component of the fingerprint, is not washed away by the organic solvent in the spray liquid, and one reaction box is not used. There is no limit to the size of the object to be examined, it can be applied to walls that cannot be moved, large furniture, etc., and rapid processing can be performed.
［実施例Ｊ
本発明方法を好適に実施することのできるシアノアクリ
レートガス発生専用装置は、第１図に示したようなシア
ノアクリレートを加熱して気化させる気化部２０、気化
ガスをアタッチメントフードへ送るためのファンを備え
た送風部ｌＯおよび検体とガスとを接触せしめるアタッ
チメントフード部３０とからなる。[Example J A dedicated cyanoacrylate gas generation device that can suitably carry out the method of the present invention includes a vaporization unit 20 that heats and vaporizes cyanoacrylate as shown in FIG. 1, and sends the vaporized gas to an attachment hood. It consists of an air blowing section 1O equipped with a fan for the purpose of the test, and an attachment hood section 30 for bringing the sample into contact with the gas.
送風部には、第１図および第２図に示すようにファン１
１および加熱ヒータの各スイッチ１７、温度調整つまみ
１５、タイマー１４．気化ガスの逆流を防ぐ逆流防止弁
１６および風量調節窓１３が付いており、一定量の空気
を送ることができる。The blower section includes a fan 1 as shown in Figures 1 and 2.
1 and each heater switch 17, temperature adjustment knob 15, timer 14. It is equipped with a backflow prevention valve 16 that prevents backflow of vaporized gas and an air volume adjustment window 13, so that a fixed amount of air can be sent.
アタッチメントフード部は、第１図および第３図に示す
ように送られてきたガスをフードで均一にするための多
孔板３１が取り付けられ、またアタッチメントフード部
を壁などの検体４０に接触させる際、潜在指紋を極力こ
わさないようにするために、フード３５の四隅に金属製
の球３２があり、４点でフードを支える構造となってい
る６さらに、アタッチメントフード部の向きを色々変化
できるようにするために、接続バイブ部分にフレシキブ
ルホース３３も備えている。As shown in FIGS. 1 and 3, the attachment hood section is equipped with a perforated plate 31 for making the sent gas uniform with the hood, and when the attachment hood section is brought into contact with a specimen 40 such as a wall. In order to avoid damaging latent fingerprints as much as possible, there are metal balls 32 at the four corners of the hood 35, which support the hood at four points6.Furthermore, the orientation of the attachment hood part can be changed in various ways. For this purpose, a flexible hose 33 is also provided at the connecting vibrator part.
この溝底によるシアノアクリレートガス発生装置は、検
体にガスを吹付けて潜在指紋を固定するものであり、従
来の反応箱内での固定化方法に比べて検体の大きさに左
右されない検出方法が実現できる。すなわら、潜在指紋
の固定を部分的に区画し、これを順次行うことで大型検
体にも適用できる。This cyanoacrylate gas generator using a groove bottom fixes latent fingerprints by spraying gas onto the sample, and compared to the conventional immobilization method in a reaction box, it is a detection method that is not affected by the size of the sample. realizable. In other words, by dividing the fixation of latent fingerprints into sections and performing this sequentially, it can be applied to large specimens as well.
本発明による方法と、溶液をスプレー塗布する従来法と
の比較実験を行った。実験結果を第４図に示す、実験は
、新建材に複数の人間が０．５にｇの荷重で連続的に１
０回指紋を押捺した場合、何回目までの検体について鮮
明な検出が可能かどうかを調べたものである。検体とし
て使用した新建材は中央で２つに分断し、その中心線に
指の中央が合致するように押捺した。このようにするこ
とにより、１回の押捺により分断した左の検体な従来法
による検出用に、右の検体を本発明方法に使用すること
ができ、しかもそれらの押捺条件をほぼ等しくすること
が可能となる。なお、照射光にはアルゴンレーザ光を用
い、波長は５１４゜５ｎｍ、４８８ｎｍの複数の発振ラ
インであった。A comparative experiment was conducted between the method according to the present invention and the conventional method of spray coating a solution. The experimental results are shown in Figure 4. In the experiment, multiple people continuously applied loads of 0.5 to 1 g to the new building material.
The purpose of this study was to investigate whether clear detection is possible for specimens up to which time a fingerprint is imprinted 0 times. The new building material used as a specimen was cut into two at the center and stamped so that the center of the finger was aligned with the center line. By doing this, it is possible to use the specimen on the right in the method of the present invention for the detection of the specimen on the left separated by one stamping using the conventional method, and moreover, it is possible to make the stamping conditions almost the same. It becomes possible. Note that argon laser light was used as the irradiation light, and the wavelengths were a plurality of oscillation lines of 514° 5 nm and 488 nm.
また、第５図および第６図には、新建材に指紋を押捺し
た後１日経過した検体を検出したものであり、それぞれ
本発明による方法と、前処理溶液をスプレー塗布する従
来法で検出した指紋を示している。何れもレーザ光を使
用したものである。Additionally, Figures 5 and 6 show specimens detected one day after imprinting fingerprints on new building materials, and were detected using the method of the present invention and the conventional method of spraying a pretreatment solution, respectively. It shows the fingerprints. Both use laser light.
図から明らかなように、第６図に示す前処理液をスプレ
ー塗布した従来方法では、指紋成分が溶剤によって流さ
れてしまい指紋隆線が鮮明でない、それに対し、・本発
明方法によるシアノアクリレートガスの被着手段では、
第５図に示される隆線は１本１本非常に鮮明であること
が分かる０本発明方法における５シアノアクリレートガ
ス処理の時間は、約３〜５秒であった０本発明方法で用
いた溶液の成分を第１表に示す。As is clear from the figure, in the conventional method in which the pretreatment liquid shown in Fig. 6 was spray applied, the fingerprint components were washed away by the solvent and the fingerprint ridges were not clear. With the method of adhesion,
It can be seen that each of the ridges shown in Figure 5 is very clear.The time for the 5-cyanoacrylate gas treatment in the method of the present invention was about 3 to 5 seconds. The components of the solution are shown in Table 1.
第
表
第２表は、前述したように１０回指紋を押捺した場合、
何回目までの検体について鮮明な検出が可能かどうかを
調査し、従来法のアルミ粉末法と、本発明の実施例であ
る前処理後レーザ照射するレーザ法とを比較した結果を
示したものである６結果より明らかなように、経過時間
が増すごとに本発明方法が従来法より高感度であること
がわかる。Table 2 shows that when fingerprints are stamped 10 times as mentioned above,
This paper shows the results of a comparison between the conventional aluminum powder method and the laser method that uses laser irradiation after pretreatment, which is an example of the present invention, by investigating whether clear detection is possible for multiple samples. As is clear from the six results, it can be seen that the method of the present invention is more sensitive than the conventional method as the elapsed time increases.
第 ２ 表
第３表は、壁１ｒｒｌ’を本発明法と従来法で処理する
のに要する時間を示したものである。最も一般的に行な
われているアルミ粉末法は、処理時間が長く、かなりの
労力を必要とすることが分かる。Table 2 Table 3 shows the time required to treat wall 1rrl' using the method of the present invention and the conventional method. It can be seen that the most commonly used aluminum powder method requires a long processing time and a considerable amount of labor.
それに対し、本発明による方法では、広い面積でも迅速
に処理するとか可能である。In contrast, with the method of the present invention, it is possible to quickly process even a large area.
第 ３ 表
なお１本発明にあける後処理に用いる有機溶媒としては
、次のものがある。Table 3 In addition, organic solvents used in the post-treatment according to the present invention include the following.
イ）トリクロロエタンに代わる溶媒
ａ、シクロヘキサン その他の炭化水素：感度Ｏ
ｂ、トリクロロエタン その他のハロゲン化炭化水素：
感度０
Ｃ，エーテル類： 感度Ｏｄ、アルコ
ール類： 感度○ｅ、エステル類：
感度○０少クロロホルムに代るもの
ａ、アルコール類
す、アセトンなどのケトン
次に蛍光物質としては、上記有機溶媒に可溶なものでロ
ーダミン染料、アクリジン染料、クマリン、エオシン、
その他がある。b) Solvent a in place of trichloroethane, cyclohexane Other hydrocarbons: Sensitivity O b, Trichloroethane Other halogenated hydrocarbons: Sensitivity 0 C, Ethers: Sensitivity Od, Alcohols: Sensitivity ○e, Esters:
Sensitivity ○0 Low Substitutes for chloroform a, alcohols, ketones such as acetone Next, as fluorescent substances, those soluble in the above organic solvents include rhodamine dyes, acridine dyes, coumarin, eosin,
There are others.
また、アルゴンレーザの他にＹＡＧレーザや色素レーザ
なとのレーザ光や、一般のアーク光源なども波長を選択
することにより使用可能である。In addition to the argon laser, laser beams such as a YAG laser or a dye laser, or a general arc light source can also be used by selecting the wavelength.
これらの波長は溶解する蛍光色素の特性と関係してくる
ので最適な励起波長を選べば良い。Since these wavelengths are related to the characteristics of the fluorescent dye to be dissolved, the optimum excitation wavelength can be selected.
［発明の効果］
本発明で示した指紋検出用処理剤を用い、本発明方法で
指紋検出を行うことにより１次のような利点を生ずる。[Effects of the Invention] By using the processing agent for fingerprint detection shown in the present invention and performing fingerprint detection according to the method of the present invention, the following advantages are produced.
■従来より最も一般的に用いられているアルミ粉末法に
比べ、非常に短時間で処理が可能なため省力化を図るこ
とができ、壁や大型の家具などにも有効である。■Compared to the most commonly used aluminum powder method, it can be processed in a much shorter time, saving labor, and is also effective on walls and large furniture.
■シアノアクリレートのガスにより潜在指紋を固着化す
るため、指紋隆線を崩すことがなく、安定した検出が可
能である。■Since latent fingerprints are fixed with cyanoacrylate gas, stable detection is possible without destroying the fingerprint ridges.
■従来法に比べ１時間の経過した検体でも高感度な検出
が可能である。■Highly sensitive detection is possible even in samples that have been aged for 1 hour compared to conventional methods.
第１図は本発明方法を好適に実施することのできるシア
ノアクリレートガス発生装置の断面の説明図、第２図は
第１図の送風部及び気化部の斜視図、第３図（ａ）は第
１図のアタッチメントフード部の拡大図、第３図（ｂ）
は第３図（ａ）の斜視図、第４図〜第６図は指紋の写真
であり、第４図は本発明法と従来法との比較図、第５図
は本発明の実施例、第６図は従来例である。Fig. 1 is an explanatory diagram of a cross section of a cyanoacrylate gas generator that can suitably carry out the method of the present invention, Fig. 2 is a perspective view of the blowing section and vaporization section of Fig. 1, and Fig. 3 (a) is Enlarged view of the attachment hood in Figure 1, Figure 3(b)
is a perspective view of FIG. 3(a), FIGS. 4 to 6 are photographs of fingerprints, FIG. 4 is a comparison diagram of the method of the present invention and the conventional method, and FIG. 5 is an example of the present invention. FIG. 6 shows a conventional example.
Claims (1)
あたり、シアノアクリレートガスを被検体表面に接触さ
せて徐々に被着せしめた後、さらに有機溶媒中に蛍光性
色素を溶解させた溶液を被検体に接触せしめ、被検体表
面の溶液を乾燥させた被検体表面に特定波長成分を有す
る光を照射し被検体表面に付着した指紋成分からの蛍光
像により、指紋隆起線像を得ることを特徴とする指紋検
出方法。1. To detect fingerprints using fluorescence generated by light irradiation, cyanoacrylate gas is brought into contact with the surface of the specimen and gradually deposited, and then a solution of fluorescent dye dissolved in an organic solvent is applied to the specimen. The method is characterized in that a fingerprint ridge image is obtained by irradiating light having a specific wavelength component onto the surface of a test object after drying the solution on the surface of the test object, and using a fluorescent image from the fingerprint components adhering to the surface of the test object. fingerprint detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1090760A JP2574458B2 (en) | 1989-04-12 | 1989-04-12 | Fingerprint detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1090760A JP2574458B2 (en) | 1989-04-12 | 1989-04-12 | Fingerprint detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02268744A true JPH02268744A (en) | 1990-11-02 |
| JP2574458B2 JP2574458B2 (en) | 1997-01-22 |
Family
ID=14007563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1090760A Expired - Lifetime JP2574458B2 (en) | 1989-04-12 | 1989-04-12 | Fingerprint detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2574458B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994026166A2 (en) * | 1993-05-11 | 1994-11-24 | Minnesota Mining And Manufacturing Company | Cartridges for developing latent fingerprints |
| US5395445A (en) * | 1993-05-20 | 1995-03-07 | Bohanan; Arthur M. | Method and apparatus for detecting fingerprints on skin |
| WO1995007655A1 (en) * | 1993-09-15 | 1995-03-23 | Minnesota Mining And Manufacturing Company | Metal complex/cyanoacrylate compositions useful in latent fingerprint development |
| US7487739B1 (en) * | 2005-11-29 | 2009-02-10 | Weaver David M | Sublimation containment apparatus and method for developing latent fingerprints |
| JP2009056110A (en) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | Fingerprint detection apparatus and method |
| US8268919B2 (en) | 2006-10-06 | 2012-09-18 | Toagosei Co., Ltd. | Polymer for detecting fingerprint, method of producing the same, composition for detecting fingerprint and method of detecting fingerprint using the same |
| US8272343B1 (en) | 2005-11-29 | 2012-09-25 | Weaver David E | Fingerprint goggles |
| CN103536296A (en) * | 2013-10-18 | 2014-01-29 | 浙江大学 | Method of detecting human sweat secretion |
| JP2014067386A (en) * | 2012-09-26 | 2014-04-17 | Koreit Co Ltd | Presenting device for portable latent fingerprint |
| GB2520063A (en) * | 2013-11-08 | 2015-05-13 | Intelligent Fingerprinting Ltd | Skin-print fluorescence analysis method and apparatus |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102052997B1 (en) * | 2017-08-18 | 2019-12-09 | 아이디에스(주) | Portable Fingerprint Detection Device Of Module-Type |
| KR102220585B1 (en) * | 2019-10-02 | 2021-02-25 | 대한민국 | Portable fumming device for detecting fingerprint with vacuum condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62247356A (en) * | 1986-02-10 | 1987-10-28 | ロクタイト．（アイルランド）．リミテツド | Manufacture of evaporation photoresist of anionic polymerizable monomer and product thereof |
| JPS63161940A (en) * | 1986-12-26 | 1988-07-05 | 川崎製鉄株式会社 | Fingerprint detection method |
-
1989
- 1989-04-12 JP JP1090760A patent/JP2574458B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62247356A (en) * | 1986-02-10 | 1987-10-28 | ロクタイト．（アイルランド）．リミテツド | Manufacture of evaporation photoresist of anionic polymerizable monomer and product thereof |
| JPS63161940A (en) * | 1986-12-26 | 1988-07-05 | 川崎製鉄株式会社 | Fingerprint detection method |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994026166A2 (en) * | 1993-05-11 | 1994-11-24 | Minnesota Mining And Manufacturing Company | Cartridges for developing latent fingerprints |
| WO1994026166A3 (en) * | 1993-05-11 | 1995-01-26 | Minnesota Mining & Mfg | Cartridges for developing latent fingerprints |
| US5395445A (en) * | 1993-05-20 | 1995-03-07 | Bohanan; Arthur M. | Method and apparatus for detecting fingerprints on skin |
| WO1995007655A1 (en) * | 1993-09-15 | 1995-03-23 | Minnesota Mining And Manufacturing Company | Metal complex/cyanoacrylate compositions useful in latent fingerprint development |
| US7487739B1 (en) * | 2005-11-29 | 2009-02-10 | Weaver David M | Sublimation containment apparatus and method for developing latent fingerprints |
| US8272343B1 (en) | 2005-11-29 | 2012-09-25 | Weaver David E | Fingerprint goggles |
| US8268919B2 (en) | 2006-10-06 | 2012-09-18 | Toagosei Co., Ltd. | Polymer for detecting fingerprint, method of producing the same, composition for detecting fingerprint and method of detecting fingerprint using the same |
| JP2009056110A (en) * | 2007-08-31 | 2009-03-19 | Sky Science Co Ltd | Fingerprint detection apparatus and method |
| JP2014067386A (en) * | 2012-09-26 | 2014-04-17 | Koreit Co Ltd | Presenting device for portable latent fingerprint |
| 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 |
| CN103536296A (en) * | 2013-10-18 | 2014-01-29 | 浙江大学 | Method of detecting human sweat secretion |
| CN103536296B (en) * | 2013-10-18 | 2015-06-17 | 浙江大学 | Method of detecting human sweat secretion |
| GB2520063A (en) * | 2013-11-08 | 2015-05-13 | Intelligent Fingerprinting Ltd | Skin-print fluorescence analysis method and apparatus |
| GB2520063B (en) * | 2013-11-08 | 2018-01-31 | Intelligent Fingerprinting Ltd | Skin-print fluorescence analysis method and apparatus |
| US10254277B2 (en) | 2013-11-08 | 2019-04-09 | Intelligent Fingerprinting Limited | Skin-print fluorescence analysis method and apparatus |
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| Publication number | Publication date |
|---|---|
| JP2574458B2 (en) | 1997-01-22 |
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