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Proceedings Paper

Removal of the indigo color by laser beam-denim interaction
Author(s): Traian Dascalu; Sofia E. Acosta-Ortiz; Martin Ortiz-Morales; Isac Compean
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Paper Abstract

We proved in our experiments that the laser fading process removes efficiently indigo-dye from denim support. Different laser pulse parameters were used in order to obtain laser power density and fluence to start the ablation process. The purpose of this work is to determine the change of denim diffuse reflectivity spectra during laser irradiation with different wavelength and different power density. The change of diffuse reflectivity coefficient was up to 17% at 450 nm wavelength (from 8% reflectivity for unirradiated denim). We use the beams from Nd:YAG laser (1064 nm and its second harmonic 532 nm) and CO2 lasers.

Paper Details

Date Published: 29 June 2001
PDF: 7 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432856
Show Author Affiliations
Traian Dascalu, Unidad Aguascalientes (Mexico)
Sofia E. Acosta-Ortiz, Unidad Aguascalientes (Mexico)
Martin Ortiz-Morales, Unidad Aguascalientes (Mexico)
Isac Compean, Unidad Aguascalientes (Mexico)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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