Axis Inversion Fingerprint Dyes |
Aneval Inc. developed the AI Colors to augment the options available to criminalists. Unlike traditional forensic methods which color fingerprints AI Colors are a pallet of axis inversion dyes that predominantly provide color to polymer backgrounds.
AI Colors have several advantages over many traditional fingerprinting systems and can be used on their own or in conjunction with cyanoacrylate fuming to enhance contrast and durability of the fingerprint.
- AI Colors color the background rather than the fingerprint. Over time cyanoacrylate sublimes and sebum dries causing processed fingerprints fade. But because the AI Colors, color the background, the image of the print remains like a photographic negative long after the print itself is gone. In a practical study, samples fumed with the AI colors have retained the image of the fingerprints for five years and counting.
- AI Colors are a “hands-off” system decreasing the chance of contact damage to a fingerprint. AI Colors produce colored fumes which have little affinity for cyanoacrylate or skin oils. The fumes preferentially invade the polymer backgrounds altering the color around the print 2-3 shade units.
- AI Colors are available in a process range of colors that can be mixed to provide contrast against a virtually any color background including black and clear.
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Blueblood Enhance (Blueblood Tracker Forensic Formula) |
The forensic version of Blueblood Tracker, has been formulated to improve forensic blood pattern analysis. The formula has been designed to enhance and fix bloody impressions. One application of Blueblood Enhance and the blood residue will be fixed and permanently colored dark blue.
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CN-Yellow provides a one step finger print Fuming and Coloring Process. (Clink the link at the side)
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Fuming Orange provides a fluorescent cyanoacrylate fingerprint on a variety of evidence types, wherever CN fuming can be used. It has all of the advantages of dye staining without the need for an additional processing step. In addition, the fluorescent emission can be excited by a wide range of wavelengths from 365nm to 530nm. So, Fuming Orange can be used with almost any available light source.
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Link to Fuming Orange |
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Green Thumb Fingerprint Discriminator
When cyanoacrylate is used to evolve fingerprints, the relative cure rate and related cross-linking of the polymer is affected by the chemical composition of the fingerprint itself. As a result, the relative ability of each fumed print to accept color is slightly different.
Green Thumb exploits this difference by providing a water based color formulation that will evolve a color ranging from blue to fluorescent yellow depending on the print itself. When use in conjunction with typical photo color masking, this difference can be enough in some cases to actually distinguish to intermixed prints from different sources.
Even where differentiation of source is not an issue, Green Thumb provides an excellent colorant detectable with visible and UV lights.
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Order Products or View Virtual Lectures |
| Please click on the link on the left to visit the Aneval Virtual Lecture Hall for more information on our porducts, services or technology or click the link to the right to order products.
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