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Cleaning Paintings

其他書名	Precautions
出版	Canadian Conservation Institute, 2016
URL	http://books.google.com.hk/books?id=i1v4twEACAAJ&hl=&source=gbs_api

註釋"Over time, the image of a painting may become difficult to see or the colours may become obscured. The two primary causes for this are a build-up of dust, dirt and grime (e.g. insect-related deposits, soot or grease and tobacco smoke) as well as a gradual yellowing or cracking of the varnish as this layer ages. Although cleaning a painting surface may appear to be straightforward, untrained individuals should not attempt to remove layers of dirt and discoloured varnish. An accurate interpretation of the effects of various cleaning agents on a particular painting requires a thorough understanding of the materials present in each layer of the painting and extensive practical conservation experience"--Introd., p. 3.