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Special Products

For selected branches of industries Druchema Prague has prepared special products. This includes mainly inked ribbons for typewriters, which belong even in the computer era to frequent office equipment. Specialties represent then dactyloscopic foils employed by the police for the purpose of fingerprint collection.

Specially for specialists

The dactyloscopic foil assortment enables to pick-up the traces developed and emphasized by dark and light dactyloscopic powders. Their role is, at the present time, irreplaceable, as they facilitate the criminalists’ work. The dactyloscopic traces are left by man thanks to the fact that it continues to secrete sebum through its pores, and, there are papillary lines on the palm, which create grooves. On the object or material surface, touched by it, a trace is therefore left. This can be made visible using physical or chemical methods. Dactyloscopy examines any changes in the course of papillary lines (the so-called prominent markers). The fingerprint conformity will be confirmed in case of conformity of 10 to 15 prominent markers.

Specially for office

Single- and two-colour inked ribbons for typewriters, calculators and cash registers are made of resistive polyamide textile. They represent a guarantee of high strength and clear and well readable colours.