Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy

Genuine leather is produced from animal skin by chemical tanning using chemical or vegetable agents, while synthetic leather is a combination of fabric and polymer. The replacement of natural leather by synthetic leather is becoming more difficult to identify. In this work, Laser Induced Breakdown S...

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Main Authors: Nicole Gilon, Margaux Soyer, Mathilde Redon, Patrice Fauvet
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/5/2648
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author Nicole Gilon
Margaux Soyer
Mathilde Redon
Patrice Fauvet
author_facet Nicole Gilon
Margaux Soyer
Mathilde Redon
Patrice Fauvet
author_sort Nicole Gilon
collection DOAJ
description Genuine leather is produced from animal skin by chemical tanning using chemical or vegetable agents, while synthetic leather is a combination of fabric and polymer. The replacement of natural leather by synthetic leather is becoming more difficult to identify. In this work, Laser Induced Breakdown Spectroscopy (LIBS) is evaluated to separate between very similar materials: leather, synthetic leather, and polymers. LIBS is now widely employed to provide a specific fingerprint from the different materials. Animal leathers processed with vegetable, chromium, or titanium tanning were analyzed together with polymers and synthetic leather from different origins. The spectra exhibited typical signatures from the tanning agents (Cr, Ti, Al) and the dyes and pigments, but also from polymer characteristic bands. The principal factor analysis allowed to discriminate between four main groups of samples representing the tanning processes and the polymer or synthetic leather character.
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spelling doaj.art-e7a7407698b44c919f755c47411bb8e62023-11-17T08:37:41ZengMDPI AGSensors1424-82202023-02-01235264810.3390/s23052648Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown SpectroscopyNicole Gilon0Margaux Soyer1Mathilde Redon2Patrice Fauvet3Institut des Sciences Analytiques, ISA UMR 5280, CNRS, Université Claude Bernard Lyon1, 69622 Villeurbanne, FranceInstitut des Sciences Analytiques, ISA UMR 5280, CNRS, Université Claude Bernard Lyon1, 69622 Villeurbanne, FranceInstitut des Sciences Analytiques, ISA UMR 5280, CNRS, Université Claude Bernard Lyon1, 69622 Villeurbanne, FranceIDS Foods, 5 Av. Lionel Terray, 69330 Meyzieu, FranceGenuine leather is produced from animal skin by chemical tanning using chemical or vegetable agents, while synthetic leather is a combination of fabric and polymer. The replacement of natural leather by synthetic leather is becoming more difficult to identify. In this work, Laser Induced Breakdown Spectroscopy (LIBS) is evaluated to separate between very similar materials: leather, synthetic leather, and polymers. LIBS is now widely employed to provide a specific fingerprint from the different materials. Animal leathers processed with vegetable, chromium, or titanium tanning were analyzed together with polymers and synthetic leather from different origins. The spectra exhibited typical signatures from the tanning agents (Cr, Ti, Al) and the dyes and pigments, but also from polymer characteristic bands. The principal factor analysis allowed to discriminate between four main groups of samples representing the tanning processes and the polymer or synthetic leather character.https://www.mdpi.com/1424-8220/23/5/2648leatherpolymerssynthetic leatherLIBSprincipal factor analysis
spellingShingle Nicole Gilon
Margaux Soyer
Mathilde Redon
Patrice Fauvet
Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
Sensors
leather
polymers
synthetic leather
LIBS
principal factor analysis
title Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
title_full Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
title_fullStr Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
title_full_unstemmed Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
title_short Separation of Leather, Synthetic Leather and Polymers Using Handheld Laser-Induced Breakdown Spectroscopy
title_sort separation of leather synthetic leather and polymers using handheld laser induced breakdown spectroscopy
topic leather
polymers
synthetic leather
LIBS
principal factor analysis
url https://www.mdpi.com/1424-8220/23/5/2648
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AT margauxsoyer separationofleathersyntheticleatherandpolymersusinghandheldlaserinducedbreakdownspectroscopy
AT mathilderedon separationofleathersyntheticleatherandpolymersusinghandheldlaserinducedbreakdownspectroscopy
AT patricefauvet separationofleathersyntheticleatherandpolymersusinghandheldlaserinducedbreakdownspectroscopy