JP7343167B2 - Blood fingerprint collection sheet and its manufacturing method - Google Patents
Blood fingerprint collection sheet and its manufacturing method Download PDFInfo
- Publication number
- JP7343167B2 JP7343167B2 JP2019206390A JP2019206390A JP7343167B2 JP 7343167 B2 JP7343167 B2 JP 7343167B2 JP 2019206390 A JP2019206390 A JP 2019206390A JP 2019206390 A JP2019206390 A JP 2019206390A JP 7343167 B2 JP7343167 B2 JP 7343167B2
- Authority
- JP
- Japan
- Prior art keywords
- blood
- fingerprint collection
- blood fingerprint
- sheet
- base material
- 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.)
- Active
Links
- 239000008280 blood Substances 0.000 title claims description 104
- 210000004369 blood Anatomy 0.000 title claims description 104
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 description 12
- 239000002270 dispersing agent Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- 239000005357 flat glass Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
本発明は、傷害事件や殺人事件等の流血事件が発生した際に、鑑識が現場に残された血液指紋を転写するための血液指紋採取シート、及びその製造方法に関するものである。 The present invention relates to a blood fingerprint collection sheet for forensic science to transfer blood fingerprints left at the crime scene when a bloody incident such as an injury or murder incident occurs, and a method for manufacturing the same.
従来より、傷害事件や殺人事件等の現場に残された血液指紋を採取するための鑑識用の血液指紋採取用シートが種々開発されている。血液指紋は一般的に、写真撮影が行われた後、血液指紋採取用シートにて転写され保存されている。このような血液指紋採取用シートは現在、特許文献１に示す如く湿布剤を基にして開発されたものや、インクジェットプリンター用紙を基にして開発されたもの等が一般的に用いられている。そしてこのような従来の血液指紋採取用シートのうち、ＰＥＴ等の硬いシート基材の表面に、アクリル系樹脂と白色顔料とシリコン系界面活性剤とから成る塗料を塗布して形成した血液指紋採取層を備えたものが使用されている。 2. Description of the Related Art Various types of blood fingerprint collection sheets for forensic identification have been developed to collect blood fingerprints left at the scene of an injury case, murder case, or the like. Generally, blood fingerprints are photographed and then transferred and stored on a blood fingerprint collection sheet. Currently, such sheets for collecting blood fingerprints are generally used, such as those developed based on poultices as shown in Patent Document 1, and those developed based on inkjet printer paper. Among these conventional blood fingerprint collection sheets, blood fingerprint collection sheets are formed by applying a paint consisting of acrylic resin, white pigment, and silicone surfactant to the surface of a hard sheet base material such as PET. Those with layers are used.
しかしながら、このように弾力性や柔軟性の乏しいシート基材に塗膜を設けた血液指紋採取用シートを使用した場合には、この血液指紋採取用シート全体を曲げるなどして変形した際に、塗膜についても弾力性や柔軟性が乏しい場合には、塗膜部分にひび割れが生じやすいものとなる上、取り扱いの際に、爪などによって塗膜にキズがつきやすいものとなっていた。またこのように硬いシート基材を使用した場合には、血液指紋が付着した被転写物に湾曲面や段差や凹凸等がある場合に、このような湾曲面や凹凸等に応じてシート全体を柔軟に変形させることが困難であるため、被転写物に付着した血液指紋の全体を確実に転写することが困難であった。 However, when a blood fingerprint collection sheet is used in which a coating film is provided on a sheet base material with poor elasticity and flexibility, when the entire blood fingerprint collection sheet is deformed by bending, etc. If the paint film lacks elasticity or flexibility, the paint film is likely to crack, and the paint film is also likely to be scratched by fingernails or the like when handled. In addition, when using a hard sheet base material like this, if the transfer object to which the blood fingerprint is attached has a curved surface, steps, or unevenness, the entire sheet may be Since it is difficult to flexibly deform, it has been difficult to reliably transfer the entire blood fingerprint attached to the transfer object.
そこで、本発明は上述の如き課題を解決しようとするものであって、取り扱いの際に塗膜に割れやキズが生じにくく、また、血液指紋を採取する際に、血液指紋全体を、被転写物に凹凸等がある場合でも容易且つ確実に転写することができる血液指紋採取用シートを得ようとするものである。 SUMMARY OF THE INVENTION The present invention is an attempt to solve the above-mentioned problems by making the paint film less likely to be cracked or scratched during handling, and when collecting blood fingerprints, the entire blood fingerprint is removed from the transfer target. An object of the present invention is to obtain a sheet for collecting blood fingerprints that can be easily and reliably transferred even when an object has unevenness or the like.
本願の第一、二発明は上述の如き課題を解決するものであって、本願の第一発明は、柔軟性を備えたシート基材と、このシート基材の一面を被覆するとともに表面を血液指紋採取面とした血液指紋採取層とから成り、上記血液指紋採取層は少なくとも、塩化ビニル系、酢酸ビニル系、ウレタン系、ラテックス系、アクリル系、アクリル・ウレタン系、シリコーン系、又は、ＳＢＲ系樹脂と、シリカとを含有するものである。 The first and second inventions of the present application solve the above-mentioned problems. The blood fingerprint collection layer is made of at least vinyl chloride, vinyl acetate, urethane, latex, acrylic, acrylic/urethane, silicone, or SBR. It contains resin and silica.
また、上記血液指紋採取層は少なくとも、塩化ビニル系、酢酸ビニル系、ウレタン系、ラテックス系、アクリル系、アクリル・ウレタン系、シリコーン系、又は、ＳＢＲ系エマルジョンと、シリカと、水とを含有する塗布液をシート基材の一面に塗布することにより形成されたものであっても良い。尚、上記酢酸ビニル系樹脂にはエチレン-酢酸ビニル系樹脂も含まれる。 Further, the blood fingerprint collection layer contains at least a vinyl chloride-based, vinyl acetate-based, urethane-based, latex-based, acrylic-based, acrylic/urethane-based, silicone-based, or SBR-based emulsion, silica, and water. It may be formed by applying a coating liquid to one surface of a sheet base material. Note that the above vinyl acetate resin also includes ethylene-vinyl acetate resin.
また本願の第二発明は、本願の第一発明の血液指紋採取用シートの製造方法であって、柔軟性を備えたシート基材の一面に、血液指紋採取層を塗布する血液指紋採取用シートの製造方法において、上記血液指紋採取層は、少なくとも水とシリカとを攪拌した混合液に、塩化ビニル系、酢酸ビニル系、ウレタン系、ラテックス系、アクリル系、アクリル・ウレタン系、シリコーン系、又は、ＳＢＲ系エマルジョンを混合することにより塗布液を生成し、この塗布液を、上記シート基材の一面に塗布することにより得られるものである。 Further, a second invention of the present application is a method for manufacturing a sheet for blood fingerprint collection according to the first invention of the present application, the sheet for blood fingerprint collection comprising applying a blood fingerprint collection layer on one side of a flexible sheet base material. In the manufacturing method, the blood fingerprint collection layer is made of a vinyl chloride-based, vinyl acetate-based, urethane-based, latex-based, acrylic-based, acrylic-urethane-based, silicone-based, or , SBR emulsion are mixed to produce a coating liquid, and this coating liquid is obtained by applying the coating liquid to one surface of the sheet base material.
更に上記第一、二発明の塗布液は、水の含有量が、塗布液の全重量の６０ｗｔ％～９０ｗｔ％としたものであっても良い。 Furthermore, the coating liquid of the first and second inventions may have a water content of 60 wt% to 90 wt% of the total weight of the coating liquid.
尚、水の含有量を、塗布液の全重量の６０ｗｔ％～９０ｗｔ％とした理由としては、この範囲内であれば塗布液中におけるシリカの分散が良好となるとともに、塗布液自体の粘性を所望の状態に調整することが出来るためである。 The reason for setting the water content to 60 wt% to 90 wt% of the total weight of the coating liquid is that within this range, silica can be dispersed well in the coating liquid, and the viscosity of the coating liquid itself can be reduced. This is because it can be adjusted to a desired state.
本願の第一、二発明の血液指紋採取層は上記の如く、少なくとも塩化ビニル系、酢酸ビニル系、ウレタン系、ラテックス系、アクリル系、アクリル・ウレタン系、シリコーン系、又は、ＳＢＲ系樹脂と、シリカとを含有するものであるから、高い弾力性及び柔軟性を得ることができる。そのためこの弾力性及び柔軟性の高い血液指紋採取層を、同じく柔軟性を備えたシート基材に設けることにより、この血液指紋採取用シートを曲げるなどして変形した場合でも、血液指紋採取層がシート基材に追従して柔軟に変形するものとなる。そのため、血液指紋採取層にひび割れが生じにくいものとなり、血液指紋の転写作業を円滑に行うことができるとともに、採取の対象となる血液指紋を確実に採取することが可能となる。また、本願の血液指紋採取用シートを持ち運ぶなどする場合には、血液指紋採取面にキズがつくなどの事態が生じにくく、製品の品質を良好に保つことができる。 As described above, the blood fingerprint collection layer of the first and second inventions of the present application includes at least a vinyl chloride-based, vinyl acetate-based, urethane-based, latex-based, acrylic-based, acrylic-urethane-based, silicone-based, or SBR-based resin; Since it contains silica, high elasticity and flexibility can be obtained. Therefore, by providing this blood fingerprint collection layer with high elasticity and flexibility on a sheet base material that also has flexibility, even if this blood fingerprint collection sheet is deformed by bending, etc., the blood fingerprint collection layer will remain intact. It deforms flexibly following the sheet base material. Therefore, cracks are less likely to occur in the blood fingerprint collection layer, and the blood fingerprint transfer operation can be performed smoothly, and the blood fingerprint to be collected can be reliably collected. Furthermore, when the blood fingerprint collection sheet of the present application is carried around, the blood fingerprint collection surface is less likely to be scratched, and the quality of the product can be maintained in good condition.
また本願の第一、二発明は上記の如く、弾力性及び柔軟性のある血液指紋採取層及び柔軟性を備えたシート基材を備えたものであるから、血液指紋が付着した被転写物に凹凸や段差がある場合などでも、この凹凸や段差などに追従して血液指紋採取シートを自在に変形させることができるため、当該被転写物に付着した血液指紋全体を迅速且つ明瞭に転写することができる。 In addition, as described above, the first and second inventions of the present application are equipped with an elastic and flexible blood fingerprint collection layer and a flexible sheet base material, so that it is possible to transfer the blood fingerprints to the transferred object. Even when there are irregularities or steps, the blood fingerprint collection sheet can be freely deformed to follow these irregularities or steps, so the entire blood fingerprint attached to the object to be transferred can be quickly and clearly transferred. I can do it.
本発明の実施例1について以下に説明する。まず、図１に示す本実施例のシート基材(1)は柔軟性を備えたポリ塩化ビニル製であって、厚さ０．０８mmである。またこのシート基材(1)の物性は、可塑剤部数３８部、引っ張り強さ２３．５Ｎ（縦）及び２０．６Ｎ（横）、伸び２８０％（縦）及び２９０％（横）、引っ張り強さ６．８Ｎ（縦）及び５．８Ｎ（横）である。尚、本実施例では上記の如く、シート基材(1)としてポリ塩化ビニルを使用しているが、他の異なる実施例ではこれに限らず、軟質ウレタンシート、軟質オレフィンシート、軟質アクリルシート、エステル系エラストマーシート等の柔軟性を備えたフィルムをシート基材として用いることができる。 Example 1 of the present invention will be described below. First, the sheet base material (1) of this example shown in FIG. 1 is made of flexible polyvinyl chloride and has a thickness of 0.08 mm. In addition, the physical properties of this sheet base material (1) are as follows: Number of plasticizer parts: 38 parts, tensile strength: 23.5N (longitudinal) and 20.6N (horizontal), elongation: 280% (longitudinal) and 290% (horizontal), tensile strength: The height is 6.8N (vertical) and 5.8N (horizontal). In addition, as mentioned above, in this example, polyvinyl chloride is used as the sheet base material (1), but in other different examples, it is not limited to this, and a soft urethane sheet, a soft olefin sheet, a soft acrylic sheet, A flexible film such as an ester elastomer sheet can be used as the sheet base material.
また、上記シート基材(1)に塗布する本実施例の塗布液（配合全体量１０００ｇ）の配合は、以下の通りである。 Further, the formulation of the coating liquid of this example (total amount of formulation: 1000 g) to be applied to the sheet base material (1) is as follows.
エチレン-酢酸ビニル共重合樹脂エマルジョン固形分 １１８．７５ｇ
ゲル法シリカ １２５．００ｇ
分散剤 ６．２５ｇ
水 ７５０．００ｇ
尚、本実施例の酢酸ビニル系樹脂エマルジョンであるエチレン-酢酸ビニル共重合樹脂エマルジョンは、住化ケムテックス株式会社製の「住化フレックス7400」（登録商標）（固形分７２．８％）を用いている。そして、上記塗布液配合の分散剤の項目には、この水中分散剤中の分散剤のみの重さを表記している。また、この水中分散剤中の水の重量は、上記塗布液配合の水の重量に含まれている。
Ethylene-vinyl acetate copolymer resin emulsion solid content 118.75g
Gel method silica 125.00g
Dispersant 6.25g
Water 750.00g
The ethylene-vinyl acetate copolymer resin emulsion, which is the vinyl acetate resin emulsion in this example, was made using Sumika Flex 7400 (registered trademark) (solid content 72.8%) manufactured by Sumika Chemtex Co., Ltd. ing. The weight of only the dispersant in the water dispersant is listed in the dispersant in the coating solution formulation. Moreover, the weight of water in this underwater dispersant is included in the weight of water in the coating liquid formulation.
上記配合量から換算して、エチレン－酢酸ビニル共重合樹脂エマルジョンの固形分及び分散剤の総重量：ゲル法シリカの重量＝１１８．７５ｇ+６．２５ｇ：１２５．００ｇ＝１：１、分散剤の含有量は、ゲル法シリカの含有量に対して５．０ｗｔ％であり、水の含有量は、塗布液の全重量の７５．００ｗｔ％である。 Converted from the above blending amount, solid content of ethylene-vinyl acetate copolymer resin emulsion and total weight of dispersant: weight of gel method silica = 118.75g + 6.25g: 125.00g = 1:1, dispersant The content of is 5.0 wt% with respect to the content of gel method silica, and the content of water is 75.00 wt% of the total weight of the coating liquid.
次に、上記塗布液の製造方法について説明する。まず、上記水中分散剤を配合容器内に投入した後、この水中分散剤に水を添加し、均一になるよう攪拌する。その後、水と水中分散剤とがよくなじむよう、数時間～半日程度静置する。次に、この水と分散剤との分散液にゲル法シリカを投入して攪拌し、数時間～半日程度静置する。更にこの上記分散液とゲル法シリカとの混合液に、エチレン-酢酸ビニル共重合樹脂エマルジョンを投入して数時間～半日程度静置することにより、本実施例の塗布液を得た。 Next, a method for manufacturing the above coating liquid will be explained. First, the above-mentioned in-water dispersant is put into a mixing container, and then water is added to the in-water dispersant and stirred so as to be uniform. Thereafter, the mixture is left to stand for several hours to half a day so that the water and the water dispersant are well mixed. Next, gel method silica is added to this dispersion of water and dispersant, stirred, and left to stand for about several hours to half a day. Further, an ethylene-vinyl acetate copolymer resin emulsion was added to the mixture of the above-mentioned dispersion and gel-method silica, and the mixture was allowed to stand for several hours to half a day to obtain the coating liquid of this example.
そして上記製造方法により得られた塗布液を、上記シート基材(1)の一面(4)に塗布した。尚、この塗布作業は、バーコーターにて手塗りで行った。その後、このシート基材(1)に塗布した塗布液を室内にて自然乾燥することにより、図１に示す如くシート基材(1)の一面(4)に本発明の血液指紋採取層(2)を設けた本実施例の血液指紋採取用シート(7)を得た。 Then, the coating liquid obtained by the above manufacturing method was applied to one surface (4) of the above sheet base material (1). Note that this coating work was performed by hand using a bar coater. Thereafter, by naturally drying the coating liquid applied to this sheet base material (1) indoors, the blood fingerprint collection layer of the present invention (2) is coated on one side (4) of the sheet base material (1) as shown in FIG. ) A blood fingerprint collection sheet (7) of this example was obtained.
上記材料及び配合により、弾力性及び柔軟性を備えた血液指紋採取層(2)を形成することができるため、このような血液指紋採取層(2)を、同じく弾力性及び柔軟性のあるシート基材(1)に設けた場合に、このシート基材(1)の変形に追随して血液指紋採取層(2)も柔軟に変形するものとなる。そのため、血液指紋採取層(2)にひびが入ったり割れてしまったりする事態が生じにくいものとなる。よって、血液指紋を迅速且つ明瞭に転写することができるとともに、製品の品質を良好に保つことができる。 With the above materials and compositions, it is possible to form a blood fingerprint collection layer (2) with elasticity and flexibility. When provided on the base material (1), the blood fingerprint collection layer (2) will also flexibly deform following the deformation of the sheet base material (1). Therefore, the blood fingerprint collection layer (2) is less likely to crack or break. Therefore, the blood fingerprint can be transferred quickly and clearly, and the quality of the product can be kept good.
尚、本実施例では上記の如く、調整した塗布液をシート基材(1)の一面(4)にバーコーターにて手塗りで塗布しているが、他の異なる実施例としては、コンマコーター、ダイコーター、グラビアコーター、ロールコーター、ブレードコーター、エアナイフコーター、ロッドコーター、リップコーター、カーテンコーター、スクイズコーター等の手段により塗布液をシート基材(1)に塗布することも可能である。 In this example, as described above, the prepared coating liquid was applied to one surface (4) of the sheet base material (1) by hand using a bar coater, but in another different example, a comma coater It is also possible to apply the coating liquid to the sheet base material (1) by means such as a die coater, a gravure coater, a roll coater, a blade coater, an air knife coater, a rod coater, a lip coater, a curtain coater, a squeeze coater, or the like.
そして上記の如く形成した血液指紋採取用シート(7)を使用して、血液指紋の転写像(5)(6)(34)(35)を採取する試験を行った。この試験は、平らなガラス板の表面と、湾曲したガラス板の曲面にそれぞれ付着した血液指紋を、本実施例及び比較例の血液指紋採取用シート(7)(31)の血液指紋採取面(3)(32)に転写することにより、上記血液指紋の転写像(5)(6)(34)(35)を採取するものである。 Using the blood fingerprint collection sheet (7) formed as described above, a test was conducted to collect blood fingerprint transfer images (5), (6), (34), and (35). In this test, blood fingerprints adhered to the surface of a flat glass plate and the curved surface of a curved glass plate were measured on the blood fingerprint collection surface of the blood fingerprint collection sheets (7) and (31) of the present example and comparative example. 3) (32) to collect the transferred images (5), (6), (34), and (35) of the blood fingerprint.
尚、比較例は従来より使用されている血液指紋採取用シート(31)であって、シート基材をポリエチレンテレフタレートにて形成するとともに、このシート基材の一面に、血液指紋採取面(32)として、アクリル系樹脂と白色顔料とシリコン系界面活性剤とから成る血液指紋採取層(33)を設けたものを使用した。 The comparative example is a conventionally used sheet for blood fingerprint collection (31), in which the sheet base is made of polyethylene terephthalate, and a blood fingerprint collection surface (32) is provided on one side of the sheet base. A blood fingerprint collection layer (33) made of acrylic resin, white pigment, and silicone surfactant was used.
そして、これら本実施例及び比較例の血液指紋採取用シート(7)(31)を用いて血液指紋の転写像(5)(6)(34)(35)を採取した試験の結果について、図２～５に示す。 The results of tests in which blood fingerprint transfer images (5), (6), (34), and (35) were collected using the blood fingerprint collection sheets (7) and (31) of these examples and comparative examples are shown in the figure. Shown in 2 to 5.
即ち図２は、本実施例の血液指紋採取用シート(7)にて、平らなガラス板の表面に付着した血液指紋を転写した血液指紋採取面(3)を写真撮影した図である。また図４は、比較例の血液指紋採取用シート(31)にて、本実施例と同じガラス板の表面に付着した血液指紋を転写した血液指紋採取面(32)を写真撮影した図である。 That is, FIG. 2 is a photograph of the blood fingerprint collection surface (3) of the blood fingerprint collection sheet (7) of the present example, which has the blood fingerprints attached to the surface of a flat glass plate transferred thereto. Further, FIG. 4 is a photograph of the blood fingerprint collection surface (32) of the blood fingerprint collection sheet (31) of the comparative example, on which the blood fingerprints attached to the surface of the glass plate as in the present example have been transferred. .
また図３は、本実施例の血液指紋採取用シート(7)にて、湾曲したガラスの曲面に付着した血液指紋を転写した血液指紋採取面(3)を写真撮影した図である。また図５は、比較例の血液指紋採取用シート(31)にて、本実施例と同じガラスの曲面に付着した血液指紋を転写した血液指紋採取面(32)を写真撮影した図である。 Further, FIG. 3 is a photograph of the blood fingerprint collection surface (3) of the blood fingerprint collection sheet (7) of this example, on which the blood fingerprints attached to the curved surface of the curved glass are transferred. Further, FIG. 5 is a photograph of the blood fingerprint collection surface (32) of the blood fingerprint collection sheet (31) of the comparative example, on which the blood fingerprints attached to the curved surface of the glass, which are the same as those of the present example, are transferred.
そして、まず上記の如く平らなガラス板に採取した血液指紋の、実施例及び比較例の血液指紋採取用シート(7)(31)に転写された転写像(5)(6)(34)(35)について比較検討した。その結果、図２に示す実施例１の血液指紋の転写像(5)は、全体的に色むらも少なく指紋もはっきりと明瞭に転写されていることが明らかに示されている。これに対し、図４に示す従来例の血液指紋の転写像(34)は、指紋全体が転写されているものの鮮明とは言えず、全体的に色むらが激しく、転写した血液の色が薄く、指紋の稜線を確認することが難しい部分が存在する。 First, the transfer images (5), (6), (34), of the blood fingerprints collected on the flat glass plate as described above, were transferred to the blood fingerprint collection sheets (7), (31) of Examples and Comparative Examples. 35) were compared. As a result, it is clearly shown that the blood fingerprint transfer image (5) of Example 1 shown in FIG. 2 has little color unevenness as a whole and the fingerprint is clearly and clearly transferred. On the other hand, in the conventional blood fingerprint transfer image (34) shown in Fig. 4, although the entire fingerprint is transferred, it cannot be said to be clear, and the color is very uneven overall, and the color of the transferred blood is pale. , there are parts where it is difficult to confirm the ridges of the fingerprint.
次に、湾曲したガラスの曲面における血液指紋の、実施例及び比較例の血液指紋採取用シート(7)(31)に転写された転写像(5)(6)(34)(35)についても比較検討した。その結果、図３に示す実施例１の血液指紋の転写像(6)は、全体的にやや色むらが見られるものの、指紋全体の輪郭が明確であり、指紋の輪郭のみならず稜線もはっきり確認できるほど、明瞭に転写されている。これに対し、図５に示す従来例の血液指紋の転写像(35)は、指紋の輪郭が中央方向に向かってＶ字型に大きく欠けている部分が何箇所か存在する上に、輪郭自体もぼやけていて指紋全体及び指紋の稜線が確認困難な部分が複数個所あり、指紋全体を確実に転写できておらず指紋の特定が困難なものとなる。 Next, regarding the transferred images (5) (6) (34) (35) of blood fingerprints on the curved surface of the curved glass, which were transferred to the blood fingerprint collection sheets (7) (31) of Examples and Comparative Examples. A comparative study was conducted. As a result, although the transferred image (6) of the blood fingerprint of Example 1 shown in FIG. 3 shows some color unevenness overall, the outline of the entire fingerprint is clear, and not only the outline of the fingerprint but also the ridge lines are clear. It is clearly transcribed so that it can be confirmed. On the other hand, in the conventional blood fingerprint transfer image (35) shown in FIG. There are multiple parts where the entire fingerprint and the ridge lines of the fingerprint are difficult to confirm because the fingerprint is blurred, and the entire fingerprint cannot be reliably transferred, making it difficult to identify the fingerprint.
以上の結果より、本実施例の血液指紋採取シート(7)を使用した場合には、シート基材(1)及び血液指紋採取層(2)ともに弾力性及び柔軟性を備えているため、ガラス板の平らな面に付着した血液指紋を、ムラなく明瞭且つ確実に転写することができる。また、ガラスの曲面に付着した血液指紋についても、シート基材(1)及び血液指紋採取層(2)を曲面に沿って変形させることができるため、本実施例の血液指紋採取面(3)を、血液指紋が付着したガラス板の曲面に全体的に密着させることが出来る。従って、血液指紋の転写像(5)(6)の輪郭がぼやけることなく、また欠けた部分が生じることなく、血液指紋の全体を明瞭且つ確実に転写することが出来る。 From the above results, when using the blood fingerprint collection sheet (7) of this example, since both the sheet base material (1) and the blood fingerprint collection layer (2) have elasticity and flexibility, the glass Blood fingerprints attached to the flat surface of a plate can be transferred evenly, clearly, and reliably. Furthermore, regarding blood fingerprints attached to the curved surface of glass, since the sheet base material (1) and the blood fingerprint collection layer (2) can be deformed along the curved surface, the blood fingerprint collection surface (3) of this embodiment can be brought into close contact with the entire curved surface of the glass plate on which blood fingerprints are attached. Therefore, the entire blood fingerprint can be clearly and reliably transferred without blurring the contours of the blood fingerprint transfer images (5) and (6) and without causing any missing parts.
１ シート基材
２ 血液指紋採取層
３ 血液指紋採取面
４ 一面
７ 血液指紋採取用シート
1 Sheet base material 2 Blood fingerprint collection layer 3 Blood fingerprint collection surface 4 One side 7 Blood fingerprint collection sheet
Claims (3)
3. The method for producing a blood fingerprint collection sheet according to claim 2 , wherein the coating liquid has a water content of 60 wt% to 90 wt% of the total weight of the coating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019206390A JP7343167B2 (en) | 2019-11-14 | 2019-11-14 | Blood fingerprint collection sheet and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019206390A JP7343167B2 (en) | 2019-11-14 | 2019-11-14 | Blood fingerprint collection sheet and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2021078556A JP2021078556A (en) | 2021-05-27 |
| JP7343167B2 true JP7343167B2 (en) | 2023-09-12 |
Family
ID=75963480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019206390A Active JP7343167B2 (en) | 2019-11-14 | 2019-11-14 | Blood fingerprint collection sheet and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7343167B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080136159A1 (en) | 2006-12-07 | 2008-06-12 | Jessica Lynn Zarate | Lifting and Preserving Bloody Impressions for Law Enforcement |
| JP4219667B2 (en) | 2002-12-10 | 2009-02-04 | 帝國製薬株式会社 | Blood fingerprint collection sheet |
| JP2009137752A (en) | 2007-12-10 | 2009-06-25 | Seed:Kk | Extraction device, collection tape and collection method for identification object |
| JP2019103724A (en) | 2017-12-14 | 2019-06-27 | 株式会社コスモ計器 | Blood fingerprint transfer method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985201U (en) * | 1982-12-01 | 1984-06-08 | 楠 冴子 | Adhesive sheet for data collection |
| JPH0695093B2 (en) * | 1992-08-10 | 1994-11-24 | 亀水化学工業株式会社 | Blood stain collection method |
| JPH0975329A (en) * | 1995-09-18 | 1997-03-25 | Nisshinbo Ind Inc | Sheet for taking fingerprints |
-
2019
- 2019-11-14 JP JP2019206390A patent/JP7343167B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4219667B2 (en) | 2002-12-10 | 2009-02-04 | 帝國製薬株式会社 | Blood fingerprint collection sheet |
| US20080136159A1 (en) | 2006-12-07 | 2008-06-12 | Jessica Lynn Zarate | Lifting and Preserving Bloody Impressions for Law Enforcement |
| JP2009137752A (en) | 2007-12-10 | 2009-06-25 | Seed:Kk | Extraction device, collection tape and collection method for identification object |
| JP2019103724A (en) | 2017-12-14 | 2019-06-27 | 株式会社コスモ計器 | Blood fingerprint transfer method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021078556A (en) | 2021-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69504811T2 (en) | OBJECT TO TRANSFER GRAPHICS | |
| DE69602889T2 (en) | Image receiving layer for thermal transfer | |
| CN1161438C (en) | Articles using adhesives and methods of using adhesives as storage to protect films or membranes | |
| CN1426934A (en) | Protective layer for hydrophilic packing material | |
| CN1457301A (en) | Inkjet printable media | |
| US20050142341A1 (en) | Imaged substrate process and articles | |
| JP7343167B2 (en) | Blood fingerprint collection sheet and its manufacturing method | |
| CN1639291A (en) | Marking film, receptor sheet and marking film for vehicles | |
| JPWO2020145404A1 (en) | Recording paper and its uses, and manufacturing method of recording paper | |
| DE69432902T2 (en) | GRAPHIC ARTICLE WITH A RECEIVING LAYER FOR ELECTROSTATIC TONER COMPOSED OF RUBBER-MODIFIED THERMOPLASTIC RESINS | |
| US20220119682A1 (en) | Recording paper, use thereof, and method for producing recording paper | |
| US10300736B2 (en) | Method and device of transferring an impression from a substrate to a surface | |
| JP6827873B2 (en) | Recording sheet for inkjet | |
| CN1196584C (en) | Multilayer electronic cutter film for image graphics | |
| CN1139497C (en) | Printable laminate | |
| US20070059472A1 (en) | Repositionable photo media and photographs | |
| JP5573069B2 (en) | Protective layer transfer sheet | |
| CN1208205C (en) | image recording medium | |
| CN100337841C (en) | Wall paper having 3-dimensional exterior view and method for preparing the same | |
| KR102514575B1 (en) | Decorating Material | |
| WO2013159922A1 (en) | System and method for transferring images onto substrates | |
| US20060063673A1 (en) | Marking film, receptor sheet and marking film for vehicles | |
| CN1248869C (en) | Masking for thermosensitive porous plate printing | |
| CN104755272B (en) | Printing medium for water-based color inkjet printing and manufacturing method thereof | |
| TWI628089B (en) | Protective layer composition and thermal recording material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20191212 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20191212 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20220511 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221107 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230530 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230531 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230605 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230809 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230824 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7343167 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |