DEVELOPMENT OF ALTERNATIVE PATENT FINGERPRINT USING ALCOHOL GEL AND THERMAL PAPER

Abstract

Fingerprints are unique structures made up of a combination of friction ridges and are varied for everyone. Due to the individual characteristics of fingerprints, it is used for identification. Traditionally, patent fingerprints are obtained using an ink pad. With the emergence of COVID-19, bank has started to provide hand sanitisers for users of ATM. Some ATM users will use an ATM, pull the ATM receipt, and proceed to clean their hands using the complimentary hand sanitisers. Unintentionally, these steps will produce a receipt with the user’s fingerprints. Hence forth, this research aims to study the possibility of obtaining fingerprints from various thermal receipt papers after a finger had contacted with hand sanitisers. Six donors were requested to deposit their fingerprints on different types of thermal paper using different brands of hand sanitisers. Quality scores were given to show the fingerprint quality difference generated using various combinations of thermal paper and hand sanitisers. The result showed that patent fingerprints developed using hand sanitiser and thermal paper were of lower quality than the standard (ink pad). Combination of alcohol-based hand sanitiser, which consists of 70% alcohol concentration and ATM receipt paper was found to be able to produce the best quality fingerprint among the studied combinations.