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Encapsulation, also known as surface treatment, involves coating the surface of titanium dioxide particles with a special film, thereby separating the particles from the surrounding medium. This prevents the photochemical activity of titanium dioxide from affecting the stability of oils, and it also shields them from direct exposure to ultraviolet rays from sunlight. As a result, the weather resistance of titanium dioxide is improved, making it more suitable for use outdoors. This is done in order to enhance its weather resistance. Organic encapsulants are organic treatment agents added to titanium dioxide slurry; they adsorb onto the surface of titanium dioxide particles through both physical and chemical adsorption, thereby altering the surface properties of the titanium dioxide and improving its dispersibility in various media. The coating industry is the main user of titanium white, especially rutile titanium white, with the majority of it being consumed by this industry. There is also a high demand for titanium dioxide in the plastics industry. Adding titanium dioxide to plastics significantly improves their properties; it enhances the physicochemical characteristics of plastic products, prolongs their service life, and increases their mechanical strength. Titanium dioxide is also widely used in the paper industry. In the papermaking industry, the addition of titanium dioxide significantly improves the color and texture of the paper. Titanium white is an essential white pigment in inks. Rutile and iron-ore type titanium powder can both be used in the ink industry. Titanium dioxide is widely used in the textile and chemical fiber industries, and the rubber industry also requires large amounts of it. In addition, titanium dioxide is also widely used in cosmetics, ceramic glazes, and the electronics industry.