The universe in the stone is great
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Home> Exhibition News> What should I do in the face of chromatic aberration on the stone mountain carving?

What should I do in the face of chromatic aberration on the stone mountain carving?

December 17, 2022
What kind of emergency measures do we have in the face of color differentiation in stone mountain carving? I compiled it for your reference.

Color difference has always been an unavoidable problem in the construction of stone mountain carving. The typesetting and plate selection before construction are not within the scope of this article. What we are discussing is the solution to the color difference of the finished stone mountain carving (this does not include the replacement of stone plates).

Stone Carving Ornaments

With the development of the chemical industry, stone coloring and dyeing is no longer a problem. At present, there are many methods for stone coloring and dyeing at home and abroad: oily dye coloring, silicone oil coloring, ion coloring, infiltration coloring, vacuum pressing coloring, firing coloring, etc., but Looking at these stone coloring methods, either the process is not suitable for the coloring treatment of finished stone mountain carving, or the weather resistance is poor. Some use oil-based dyes to color stone mountain carving. Although it can solve the urgent need, its extremely poor weather resistance cannot solve the fundamental problem. Coloring construction at the front, fading at the back, especially in hot summer. No matter how much the stone dye dealers swear by its timeliness, those who have done stone mountain carving dyeing must know it well.
This leads to the dilemma that the stone dyeing that can be easily applied on the curtain wall cannot be weather-resistant, and the weather-resistant coloring methods such as vacuum pressing and firing coloring that are more weather-resistant cannot be applied to the finished stone mountain carving. Secondly, the color difference treatment of stone mountain carving is not only a problem of stone dyeing, but also has many factors such as darker color and inconsistent color. For the treatment of dark stone color difference, there are few technical measures mentioned at present, especially the technology for reducing and changing the color of smooth stone is even less.
The principles to be followed in the color difference treatment of Shishan carving:
(1) Weather resistance: strong light irradiation ability, strong oxidation resistance, and rain resistance.
(2) The operability of the vertical façade of the curtain wall.
(3) Selection of base color stone.
(4) The color palette of the test panel is first the small panel and then the medium panel. Before the test panel is not subjected to the aging test, it is forbidden to blindly color the wall.
(5) The chemical reaction and agent of color toning cannot corrode the stone and structural glue.
The chemical reaction of stone mountain carving coloring or color change should be carried out at room temperature, as well as the sagging and permeability. The valence state of the chromogenic ion used should be stable. Once the valence state of the ion changes, its color will also change accordingly.
Therefore, in order to have no color difference in stone mountain carving, whether it is the choice of stone or the treatment plan after it appears, it is a key that directly affects the beauty of the sculpture.
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