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Development of fingerprints on thermal papers—a review
- Source :
- Egyptian Journal of Forensic Sciences, Vol 9, Iss 1, Pp 1-8 (2019)
- Publication Year :
- 2019
- Publisher :
- SpringerOpen, 2019.
-
Abstract
- Background In recent times, the use of thermal papers has increased exponentially and the fingerprints on thermal papers are frequently encountered. Although fingerprint development on paper has been standardized, that on thermal paper is complicated. Thermal papers turn black on the application of heat which poses a problem in the visualization of fingerprints which makes it difficult to visualize. Main body One solution to this problem is to use heat or steam for the development of white fingerprints on darker backgrounds. Second solution might be to dissolve the chemicals present on the surface of the thermal papers using acetone. Many studies to develop fingerprints on thermal papers using iodine fuming, ninhydrin, 1,8-diazofluorene-9-one, and p-dimethylaminocinnamaldehyde have been performed. In the present review, an attempt has been made to summarize the problem posed to fingerprint development on thermal papers and the probable solutions attempted by different authors. Conclusion Although the development of fingerprints is difficult on thermal papers, it can be achieved either by subjecting the thermal paper to controlled heat or by removing the temperature-sensitive layer before treating it with other fingerprint development methods.
- Subjects :
- Health (social science)
Computer science
Fingerprints
01 natural sciences
Pathology and Forensic Medicine
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
Thermal
Iodine fuming
lcsh:Law in general. Comparative and uniform law. Jurisprudence
030216 legal & forensic medicine
Process engineering
Thermal papers
p-Dimethylaminocinnamaldehyde
lcsh:R5-920
business.industry
010401 analytical chemistry
Fingerprint (computing)
Ninhydrin
1,8-Diazafluorene-9-one
Thermal paper
0104 chemical sciences
chemistry
lcsh:K1-7720
business
lcsh:Medicine (General)
Law
Subjects
Details
- Language :
- English
- ISSN :
- 20905939
- Volume :
- 9
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Egyptian Journal of Forensic Sciences
- Accession number :
- edsair.doi.dedup.....b69019fc1a48867d8dbb64a7e32a77bf