Investigation on Visibility of Drilled Hole in Laser Micro-drilling of Multi-layered Artificial Skin

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  • Okamoto Yasuhiro
    Graduate School of Natural Science and Technology, Okayama University
  • Asako Kiichi
    Graduate School of Natural Science and Technology, Okayama University
  • Maeda Naoto
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
  • Okada Akira
    Graduate School of Natural Science and Technology, Okayama University
  • Minagi Shogo
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
  • Pan Qiuyue
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
  • Jin Keiji
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
  • Nishigawa Goro
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University

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  • Investigation on Visiblity of Drilled Hole in Laser Micro-drilling of Multi-layered Artificial Skin

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Abstract

A multi-layered artificial skin is mainly consisted of three layers of silicone elastomer, print paper, and resin plate. Sealing of facial defects with the multi-layered artificial skin causes perspired water from the surface of missing parts, which results in insanitary conditions to the skin surface. Therefore, the laser micro-drilling using nanosecond pulsed laser of 266 nm was investigated to provide the breathability for multi-layered artificial skin without human eye’s recognition of drilled holes, which can satisfy both the breathability and aesthetic problems. The visibility of drilled hole was affected by the pitch distance of drilled holes, and its visibility decreased with increasing the pitch distance. A small color difference measured using a colorimeter led to the low visibility, and laser micro-drilling with small color difference is effective to obtain the breathable multi-layered artificial skin with low visibility of drilled holes, which can improve the breathability for the multi-layered artificial skin.

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