Laser vibrometry in the quality control of the break of tanned leather

Jorge Sanchez Preciado, Cesar Giovani Tavera Ruiz

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Tanning industry treats hides and the skin of animals for their use in products such as clothes, furniture and car's interiors. The worth of leather is highly affected by defects that may appear prior or during the tanning process. Break, which refers to the wrinkling of the grain surface of leather, is one of the main issues because it affects not only the visual appearance of leather, but also its mechanical properties. The standardized method to classify the break pattern is done by bending the leather with the hand and comparing visually the resulting wrinkles that appear with a reference pattern, which makes the classification subjective and limits the evaluation to small areas. Laser vibrometry is an optical technique that has been applied in vibrational and modal analysis, which are methodologies used to obtain the mechanical properties of materials. This work demonstrates the use of a single-point vibrometer as a noncontact and nondestructive optical method to discriminate among five break levels, which could increase the effectiveness of leather classification for quality control in the tanning industry.

Original languageEnglish
Pages (from-to)78-83
Number of pages6
JournalOptics and Lasers in Engineering
Publication statusPublished - May 2018
Externally publishedYes

Bibliographical note

Funding Information:
We thank Curtidos y Acabados Kodiak, S. A. de C. V. for the technical support. We also thank I. N. Angulo-Sherman for the help in the processing of the data. J. Sanchez Preciado thanks CONACYT for the scholarship 346975.

Publisher Copyright:
© 2017 Elsevier Ltd

Copyright 2018 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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