Estimation of the Regimes of Ablation of the Fabric of Karakul for Glutaraldehyde Tanning Under the Exposure of a Laser on Yttrium Aluminum Garnet
Journal: Revista de Pielarie Incaltaminte / Leather and Footwear Journal (Vol.22, No. 3)Publication Date: 2022-09-30
Authors : Juma Sharopovich Azimov Maria Ivanovna Markevich Tulkin Jumaevich Kodirov Shokhrukh Shukhratovich Shoyimov Akmal Yusupovich Toshev;
Page : 159-168
Keywords : Karakul skins; glutaraldehyde; morphology; hydrothermal destruction; laser radiation;
Abstract
The article discusses the activation of the surface of karakul (astrakhan) leather tissue by laser exposure, changes in the surface morphology of karakul leather tissue during laser processing and subsequent glutaraldehyde tanning combined with chrome tanning of karakul leather. The morphology of the surface of the sample was investigated by the methods of optical and scanning electron microscopy and the elemental analysis of the skin tissue of karakul under the action of laser radiation from the front side was carried out. Dry tanning was carried out after laser exposure. For the first time, the morphology of the surface of the skin tissue of karakul was investigated using a laser generating in a two-pulse mode (pulses are separated by a time interval of 3 μs, pulse duration of 10 ns) with a wavelength of 1064 nm in a wide range of deposited energies, which lead, as to the mode of ablation of the surface of the skin tissue of karakul and to its perforation followed by glutaraldehyde tanning. The possibility of changing the consumer parameters of the skin tissue of karakul due to the dermis dissociation, conformational changes, which lead to a change in the structure, is shown. At energies more than 30 J, the skin is perforated with carbonization of the edges of the holes.
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