Study of the effect of natural factors on one of the oil paintings executed on wooden stand

Abstract

Heat, humidity and light are among the natural factors that have a destructive effect on oil paintings, especially those executed on a wooden stand. The change in the rates of temperature and humidity leads to a change in the rates of expansion and contraction in the wooden carrier of the oil paintings. This results in warping, warping, vaulting, curvature and separation between the wooden beams that make up the wooden carrier and what gets wet on it. This is from falling and losing color layers on the surface of the painting, in addition to the direct effect of damage factors on the photography floors. The painting, which is the subject of the study, is one of the personal belongings. Executed on a wooden stand, it bears some insignia, symbols, and color indications that help in the dating process, such as the crescent, the three stars, the green and brown colors, and the royal crown that adorns it. The research is concerned with the history of the painting through the theme of the painting and examining the deterioration aspects and identifying the compounds of the imaging floor using X-ray diffraction (XRD) and identifying the bonding material of the preparation floor by infrared analysis (FTIR). In addition to identifying the color medium by gas chromatograph analysis. The research also deals with the stages of painting treatment, starting from the stages of mechanical and chemical cleaning, fixing, injection and strengthening, all the way to applying a layer of varnish to protect the surface of the painting.