Toagosei Company, Ltd.

Earth Chemical Co., Ltd.

Osamu Shimoda

Yushi Ando

Muneaki Kano

Makoto Miyamoto

Yushi Sawada

Yuji Ishikawa

Masao Fukushima

Masahisa Takatsu

The present invention provides a latent fingerprint detection method that is easy to handle and is capable of clearly detecting a latent fingerprint and a heating evaporation device for detecting a latent fingerprint and a latent fingerprint detection apparatus which are capable of detecting a clear latent fingerprint by a one-time operation by heating a chemical agent at high temperatures in a short time, as well as a composition for detecting a latent fingerprint. This latent fingerprint detection method includes a heating step of heating a chemical agent to be gasified by heating so as to attach to a latent fingerprint on a specimen, and an exposure step of exposing the specimen having the latent fingerprint attached thereto to the atmosphere of the gasified chemical agent. The chemical agent is a mixture of a 2-cyanoacrylic acid ester polymer and a dye.

Latent fingerprint detection method, heating evaporation device for detecting latent fingerprint, latent fingerprint detection apparatus, and composition for detecting latent fingerprint

It is intended to provide a polymer for detecting a fingerprint, which can be easily handled in a scene of the fingerprint detection as a substitute for conventionally employed 2-cyanoacrylate (a monomer), and a composition for detecting a fingerprint. It is also intended to provide a method of detecting a fingerprint whereby a fingerprint can be detected at a high sensitivity regardless of the color or conditions of a specimen and wherein the specimen can be well restored. The present polymer and composition for detecting a fingerprint and method of detecting a fingerprint using the same make it possible to definitely detect a fingerprint by using fluorescence even from an almost white specimen such as a shopping bag or an aluminum foil from which a fingerprint can be hardly detected by the existing methods.

Polymer for detecting fingerprint, method of producing the same, composition for detecting fingerprint and method of detecting fingerprint using the same

Growing community of inventors

Hyogo, Japan

Osamu Shimoda