Fiber 레이저를 활용한 페인팅 조각작품 도장층 제거 적용성 연구
Application of Fiber Laser for Removing the Coating Layer from Painted Sculptures
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초록
페인팅 조각작품은 야외 환경에 지속적으로 노출됨에 따라 손상을 입게 되며, 손상된 도막층을 제거하고 재도장하는 방식이 보편적으로 활용되고 있다. 그러나 기존의 물리적 및 화학적 도장층 제거 방법은 모재에 손상을 가할 위험성이 높고, 작업자 및 환경적으로 유해하므로 새로운 제거 방법의 개발이 요구된다. 2000년대 초반부터 레이저 클리닝 기술이 문화유산 보존 분야에 도입되면서 다양한 재질에 대한 적용 가능성이 연구되었다. 레이저 클리닝은 비접촉 방식으로 제거 대상의 선택적 제거가 가능하다는 장점을 지닌다. 본 연구에서는 Q-Switching Fiber 레이저를 활용하여 페인팅 조각작품의 도장층 제거를 수행하였으며, 출력과 중첩률 변화에 따른 제거 효과와 표면 상태를 비교⋅분석하였다. 고출력 조건에서는 높은 제거 효율을 보였으나 표면 변색이 관찰되었으며, 저출력 조건에서는 제거 성능이 미흡하였지만, 변색 현상은 발생하지 않았다. 또한, 중첩률이 증가할수록 제거 성능은 향상되었으나 광범위한 표면 변색이 확인되었다.
Abstract
Outdoor painted sculptures, when continuously exposed to outdoor environments, inevitably suffer damage. To conserve these works, it is common practice to remove the damaged coating layers and repaint them. However, traditional physical and chemical methods for removing these coatings pose a high risk of damaging the underlying material, necessitating the development of new removal techniques. Since the early 2000s, laser cleaning technology has been introduced in the field of cultural heritage conservation, and its applicability to various materials has been studied. Laser cleaning offers the advantage of non-contact, selective removal of the target area. In this study, a Q-Switching Fiber laser was utilized to remove the coating layers from painted sculptures, and the removal effects and surface conditions were compared and analyzed based on variations in power output and overlap rate. High-power settings demonstrated high removal efficiency but resulted in surface discoloration, while low-power settings showed insufficient removal performance without causing discoloration. Additionally, as the overlap rate increased, removal performance improved, butextensive surface discoloration was also observed. Therefore, the study confirms that Fiber laser cleaning can be effectively applied to the conservation of painted sculptures.
참고문헌 (9)
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