Colored glazed glass is a popular decorative glass material with good decorative performance. It not only has a variety of colors and patterns and can be freely customized, but also can absorb and reflect part of the solar energy by using the glazed surface, which has a certain energy-saving effect. At present, the country is advocating energy conservation in buildings. It is believed that colored glazed glass will surely have a better market prospect in the future. In addition to glazed glass, we often come across lacquered glass with similar effects. Both have patterns printed on their surfaces and offer better strength and performance .
I. What is colored glazed glass
Colored glazed glass is made by printing one or more layers of inorganic glaze (also known as ink) on the surface of the glass through screen printing technology, giving the glass patterns or designs of different colors. Then, after heating and baking, tempering or semi-tempering treatment, the glaze is sintered onto the surface of the glass to obtain a decorative material that is wear-resistant and acid and alkali resistant.
1.1 Produce various patterns and different colors of colored glazed glass as needed, which is highly decorative, stable in color and does not fade.
1.2 High safety, capable of tempering processing to produce laminated, insulating and other combined product glass;
1.3 The shading effect is obvious.
Scope of application: Widely used in the architectural decoration industry, and the colored glaze process is also frequently employed in furniture glass, electronic glass, etc. Colored glazed glass is light in weight and easy to install. The glaze never falls off or fades. It has the characteristics of non-hygroscopicity, non-permeability, easy cleaning and easy color matching. It is a new type of material that cannot be compared with stone, ceramics, wood, bricks, etc., and is widely used in interior and exterior decoration as well as exterior wall decoration.
Ii. The Differences between Glazed Glass and lacquered Glass.
Colored glaze: It is made by spraying, painting and printing inorganic glaze, and then baked at a high temperature of 620-720℃, melting into the glass body as one.
Baking varnish: It is made by spraying, painting and printing a mixture of high-molecular polymers from agricultural production systems or inorganic pigments, and then baking and fixing at 100-150℃.
The glaze composition of the former is almost the same as that of the glass itself. After completion, it becomes one with the glass and has the same service life as the glass itself. The latter material is fundamentally different from glass; it merely adheres to the surface of glass through physical means.
Iii. Explanations of Relevant Concepts
3.1 Glass
Glass is an amorphous inorganic non-metallic material, generally made from a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials, with a small amount of auxiliary raw materials added. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2, etc. Its main component is silicate complex salt, and it is an amorphous solid with an irregular structure. It is widely used in buildings to block wind and allow light to pass through, and it belongs to a mixture. There are also colored glasses mixed with certain metal oxides or salts to show colors, and tempered glass produced by physical or chemical methods, etc. Sometimes some transparent plastics (such as polymethyl methacrylate) are also referred to as agricultural production system glass.
3.2 Colored Glaze
Colored glaze, also known as overglaze painting (such as five-color, pastel, etc.), is a ceramic coloring technique in which patterns are depicted and colors are filled on the glaze surface of fired porcelain, and then it is fired in a red furnace at a low temperature of about 7000℃ to 800℃. In addition, if paintings such as blue and white or underglaze red are painted on the raw body of the clay before firing, it is called underglaze red. Its characteristic is that the color will never fade under the high-temperature glaze.
