Ceramic tile is widely used in various places as a building decoration material, and its anti-fouling property directly affects the beauty of use and the convenience of cleaning.
First of all, there are many common methods for testing the anti-fouling property of ceramic tiles. Among them, the pollutant drop test is more commonly used. Specific pollutants, such as ink, coffee, cooking oil, etc., are dropped on the surface of the ceramic tile. After a certain period of time (usually 24 hours), they are wiped with a wet cloth and the degree of residual traces is observed to evaluate the anti-fouling property. For example, for kitchen ceramic tiles, if the cooking oil can be easily wiped off without obvious traces after dripping, it indicates good anti-fouling property. In addition, there is a scrubbing test, which uses a standard scrubbing tool and a certain pressure to repeatedly scrub the ceramic tile coated with pollutants for a certain number of times, and compare the residual stains and the degree of wear on the surface of the ceramic tile before and after scrubbing. There is also a test method that combines ultraviolet irradiation with pollution. First, let the ceramic tile be exposed to ultraviolet rays for a certain period of time to simulate the aging process, and then conduct a pollution test to examine the anti-fouling performance under long-term use and light.
Secondly, there are many strategies to improve the stain resistance from the perspective of Ceramic tile production process. In terms of glaze formula, add an appropriate amount of nano-scale anti-fouling materials, such as nano-silicon dioxide, nano-titanium dioxide, etc. These nanomaterials can fill the tiny pores of the glaze, make the surface denser, and reduce the channels for stains to penetrate. For example, after the glaze containing nano-silicon dioxide is fired, the surface structure of the Ceramic tile is smoother and flatter, and it has a better repellent effect on liquid stains. At the same time, optimize the firing temperature and time curve of the glaze to ensure that the glaze is fully vitrified, improve its hardness and density, and enhance its anti-fouling ability.
Furthermore, surface treatment technology can also effectively improve the stain resistance of Ceramic tile. Using super-hydrophobic coating technology, the contact angle between the surface of Ceramic tile and water is increased through a special chemical coating. When there is stain, the water droplets can take away some of the stains during the rolling process on the surface, achieving a self-cleaning effect. In addition, the surface of the Ceramic tile is polished to reduce the surface roughness and the surface area where stains adhere, but it should be noted that polishing should not excessively affect the anti-slip performance of the Ceramic tile. Surface modification treatments such as ion implantation can also be performed to change the chemical activity of the surface, so that stains are not easy to react chemically with the surface of the Ceramic tile and adhere.
Finally, the stain resistance of the Ceramic tile can also be improved during use and maintenance. The correct cleaning method is critical, and corrosive cleaning agents such as strong acids and alkalis should be avoided to avoid damaging the glaze layer and anti-fouling structure of the Ceramic tile surface. Regular cleaning and maintenance should be performed to remove surface stains in time to prevent stains from accumulating and penetrating for a long time. For example, wipe off the oil stains in the kitchen Ceramic tile in time after use, and clean the water stains and dirt of the bathroom Ceramic tile regularly, which can maintain the good anti-fouling performance of the Ceramic tile to a certain extent and extend its beauty and service life.
