Often associated with acts of vandalism, graffiti can also be identified with the so‐called street art movement. Moreover, in the historical context of visual arts from the 20th and 21st century, graffiti spray paints feature among the materials employed in the work of representative artists such as Lucio Fontana, Richard Hamilton, Yves Klein, or David Alfaro Siqueiros. In this study, a large number of artist spray paints were analyzed by means of X‐Ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), spectrophotometry, and Hyperspectral Imaging (HSI). The aim of the study was to provide a chemical characterization of the main organic and inorganic components present within the spray paint formulations by means of a complementary non‐destructive approach. Titanium white, zinc white, bismuth vanadate yellow, ultramarine, strontium sulfide, iron, and copper oxides, along a series of pigments of the azo, phthalocyanine, and quinacridone classes could be identified. High amounts of barium sulfate as well as calcium‐based extenders were also detected. FTIR analysis provided important information regarding the binder composition, mainly modified alkyd resins being identified. Additional information related to the existing chromophores as well as specific binder‐pigments interactions could also be highlighted within the HSI data sets. Overall results provide new insights on the complex chemistry of this new range of materials, which could help future investigations carried on street art graffiti, contemporary murals, or mixed‐media artworks.

中文翻译：

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通过非破坏性的多分析方法表征街道艺术涂鸦中使用的喷漆

涂鸦通常与破坏行为有关，也可以通过所谓的街头艺术运动来识别。此外，在20世纪和21世纪视觉艺术的历史背景下，涂鸦喷漆是卢西奥·丰塔纳（Lucio Fontana），理查德·汉密尔顿（Richard Hamilton），伊夫·克莱因（Yves Klein）或大卫·阿尔法罗·西奎罗斯（David Alfaro Siqueiros）等代表性艺术家作品中使用的材料。在这项研究中，通过X射线荧光（XRF），傅里叶变换红外光谱（FTIR），分光光度法和高光谱成像（HSI）对大量艺术家喷漆进行了分析。该研究的目的是通过一种互补的非破坏性方法，对喷涂配方中存在的主要有机和无机成分进行化学表征。钛白，锌白，钒酸铋黄，群青，可以鉴定出硫化锶，铁和氧化铜，以及一系列偶氮，酞菁和喹ac啶酮类颜料。还检测到大量的硫酸钡和钙基增量剂。FTIR分析提供了有关粘合剂成分的重要信息，主要是鉴定出的改性醇酸树脂。在HSI数据集中也可以突出显示与现有生色团以及特定的结合剂-颜料相互作用有关的其他信息 主要鉴定的是改性醇酸树脂。在HSI数据集中也可以突出显示与现有生色团以及特定的结合剂-颜料相互作用有关的其他信息 主要鉴定的是改性醇酸树脂。在HSI数据集中也可以突出显示与现有生色团以及特定的结合剂-颜料相互作用有关的其他信息。总体结果为这种新型材料的复杂化学提供了新的见解，这可能有助于将来对街头艺术涂鸦，当代壁画或混合媒体艺术品进行调查。