Efectos del barniz sobre el color de las reintegraciones cromáticas
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2013
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Universitat Politécnica de Valencia
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Abstract
El estudio muestra en qué grado dos técnicas pictóricas, acuarela y pigmentos aglutinados al barniz (Gamblin), utilizadas en la reintegración cromática de obras arte, experimentan un cambio de color tras ser barnizadas. El método de trabajo ha consistido en aplicar dos tipos de barniz, mate y brillante, sobre diferentes muestras de color de cada una de las dos técnicas pictóricas analizadas. El análisis colorimétrico realizado sobre las muestras barnizadas y el estudio comparativo de los resultados obtenidos permiten conocer hasta qué punto se produce un cambio de color sobre cada una de ellas y qué parámetro claridad, croma o tono es el que tiene mayor influencia en el cambio.
The study shows to what extent two painting techniques, watercolor and varnish painting (Gamblin), used in chromatic reintegration of artworks, experience color change after being varnished. The working method has consisted of applying two types of varnish, matte and shiny, over different color samples of each painting techniques analyzed. The colorimetric analysis made on every sample and the comparative study of the obtained results have allowed knowing to what degree color change occurs in each sample and which parameter, brightness, chroma, or hue, is the one with the greatest influence on the change.
The study shows to what extent two painting techniques, watercolor and varnish painting (Gamblin), used in chromatic reintegration of artworks, experience color change after being varnished. The working method has consisted of applying two types of varnish, matte and shiny, over different color samples of each painting techniques analyzed. The colorimetric analysis made on every sample and the comparative study of the obtained results have allowed knowing to what degree color change occurs in each sample and which parameter, brightness, chroma, or hue, is the one with the greatest influence on the change.