ABSTRACT In the last 20 years strong permanent magnets have frequently been used in the field of conservation and preservation of works of art. Such magnets provide temporary mechanical pressure, making them a convenient way to frame and/or present a piece for exhibition. This is a benefit because in these magnets high magnetic energy is stored in a small mass. Literature dedicated to this topic focuses on the undeniable advantages of this method, but it does not mention the potential consequences it may have on artworks. This technical note raises awareness for art conservators, private collectors, and museums that many pigments contain magnetically active particles. Five pigments based on iron and cobalt were selected and examined and the relative magnetic permeabilities determined. This makes it possible to calculate the mechanical forces caused by magnetic stationary or alternating fields for a wide range of products with these pigments.

中文翻译：

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磁铁对用于保护绘画和艺术品的某些颜料和油漆的影响

摘要 在过去的 20 年中，强力永磁体经常被用于艺术作品的保护和保存领域。这种磁铁提供暂时的机械压力，使它们成为一种方便的方式来框架和/或展示一件作品。这是一个好处，因为在这些磁铁中，高磁能存储在小质量中。致力于此主题的文献着重于这种方法不可否认的优势，但并未提及它可能对艺术作品产生的潜在后果。该技术说明提高了艺术保护者、私人收藏家和博物馆对许多颜料含有磁性活性颗粒的认识。选择并检查了五种基于铁和钴的颜料，并确定了相对磁导率。