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31232

Some of the Physical and Chemical Characterizations Applied for the Laser Printers toner and Ballpoint Pen Inks to Determine the Sequence of their Intersections

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Physical chemistry

Abstract

In the forensic document examination, the determination of the chronological order of intersection strokes of the toner and ballpoint inks is a paramount challenge issue. Two types of intersection are prepared on three different types of paper. A digital microscope and Raman spectroscopy are two nondestructive techniques used to determine these sequences via cross lines. Four physical characteristics observed at intersection point under the digital microscope were a specular reflection, the ink gloss, the ink spreading and gap. The results of the digital microscope determined the two types of intersections strokes except the red color of ink over toner. The results of Raman spectroscopy showed that the spectrum results at the intersection point similar to the pure ink executed later. The complementary technique of Raman spectroscopy and the digital microscope were necessary to achieve a complete determination of the sequences intersection strokes of the toner and ballpoint ink.

DOI

10.21608/ejchem.2019.10960.1702

Keywords

Forensic document examination, Strokes intersection, Ballpoint inks, Toner laser printer, Raman spectroscopy, Digital Microscope

Authors

First Name

Samia

Last Name

Shraa

MiddleName

Ibrahim

Affiliation

Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt

Email

samiashara2012@yahoo.com

City

-

Orcid

-

First Name

Abdel Aleem

Last Name

Abo Elmagd

MiddleName

Solyman

Affiliation

Al-Azhar University, Chemistry Department, Nasr City, Cairo, Egypt

Email

dr.aleem@yahoo.com

City

-

Orcid

-

First Name

Al-Sayed

Last Name

Bakr

MiddleName

Aly

Affiliation

Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt

Email

als_water@yahoo.com

City

-

Orcid

-

First Name

Yasser

Last Name

Moustafa

MiddleName

Mohamed

Affiliation

Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, Egypt

Email

ymoustafa12@yahoo.com

City

-

Orcid

-

First Name

Ibrahim

Last Name

Abd El-Aziz

MiddleName

Mohamed

Affiliation

Forgery & Counterfeiting Department, Forensic Medicine Authority, Cairo, Egypt

Email

ibrahimexpert_78@yahoo.com

City

-

Orcid

-

First Name

Ahmad

Last Name

Shabana

MiddleName

-

Affiliation

Al-Azhar University, Chemistry Department, Nasr City, Cairo, Egypt

Email

shabana_12346@yahoo.com

City

Cairo

Orcid

-

Volume

62

Article Issue

11

Related Issue

8549

Issue Date

2019-11-01

Receive Date

2019-03-20

Publish Date

2019-11-01

Page Start

2,047

Page End

2,060

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 62_Issue 11_Pages 2047-2060.pdf

PDF . 1.9MB

Link

https://ejchem.journals.ekb.eg/article_31232.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=31232

Order

7

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Some of the Physical and Chemical Characterizations Applied for the Laser Printers toner and Ballpoint Pen Inks to Determine the Sequence of their Intersections

Details

Type

Article

Created At

22 Jan 2023