China No. 2023 Red Fluorescent Fingerprint Powder

No.2023 Red fluorescent fingerprint powder

1. Purpose:

a) Develop fingerprints on non-porous and smooth surface. Suitable for multi-colored surface. Suitable for both horizontal and vertical surfaces.

b) In general, the fingerprint is a mixture of grease and sweat. For greasy prints, powders have better results; for sweat prints, superglue has better results.

Description:

a) When developing fingerprints on the multi-colored surface (such as colorful pictorial) with the non-fluorescent powders, the multi-colored background causes serious interference when photographed. When developed with the fluorescent red powders, the fingerprints give off red fluorescence under violet light in a dark environment, so the interference caused by the multi-colored background can be greatly reduced when photographed.

b) The fluorescent red powders have weak adhesion to the fingerprints and only the feather brush can be used to uncover the fingerprints.

3. Method:

Dip enough powders with the feather brush to sweep the latent fingerprints directly. Due to the weak adhesion of the fluorescent powders, one area can only be swept once or twice for fear of damage to the ridge line. A powder blowing ball can be used to remove redundant powders.

Specification: 30ml / bottle
Direct effect
The fingerprint shows red fluorescence when irradiated with 415nm violet light
Direct effect in complex background
The fingerprint shows red fluorescence when irradiated with 415nm violet light, which eliminates the interference of complex background