Removal of the indigo color by laser beam-denim interaction

Traian Dascalu; Sofia E. Acosta-Ortiz; Martin Ortiz-Morales; Isac Compean

doi:10.1117/12.432856

29 June 2001 Removal of the indigo color by laser beam-denim interaction

Traian Dascalu, Sofia E. Acosta-Ortiz, Martin Ortiz-Morales, Isac Compean

Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432856
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania

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.

Citation Download Citation

Traian Dascalu, Sofia E. Acosta-Ortiz, Martin Ortiz-Morales, and Isac Compean "Removal of the indigo color by laser beam-denim interaction", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432856

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