How can the color toner powder of the copier ensure that the printed colors will not fade under long-term light exposure and maintain the long-lasting brightness of the picture?
Publish Time: 2025-01-22
In order to ensure that the images printed by the color toner powder of the copier will not fade under long-term light exposure and maintain the long-lasting brightness of the picture.High-quality pigments and dyes: The pigments and dyes used in color toner powder are the key factors that determine the durability of the image. High-quality pigments and dyes have better light stability and light resistance. These materials are designed with chemical structures to absorb ultraviolet rays and convert them into harmless heat energy, thereby reducing fading caused by photochemical reactions.UV filters: Adding ultraviolet (UV) filters to toner powder can effectively block ultraviolet rays and prevent them from directly acting on pigment and dye molecules, thereby slowing down the fading process. These filters are usually some organic compounds that can absorb ultraviolet rays and convert their energy into heat energy or visible light.Antioxidants: Oxidation is another major cause of color fading. Adding antioxidants to toner powder can prevent pigments and dyes from reacting with oxygen in the air, thereby extending the retention time of color. Antioxidants can capture free radicals and prevent them from triggering chain oxidation reactions.Light stabilizers: Light stabilizers are a class of compounds that absorb light energy and convert it into a harmless form. They prevent photochemical degradation of pigment and dye molecules under light, thereby maintaining the vividness of color. Light stabilizers are often mixed with pigments or dyes to provide additional protection.Lightfastness testing and quality control: Manufacturers usually conduct rigorous lightfastness tests on toner powder to ensure its performance under different lighting conditions. These tests usually include accelerated aging tests to evaluate the fading rate of toner powder by simulating long-term sunlight exposure. Quality control ensures that each batch of toner powder meets these standards.Optimized toner powder formulation: The formulation of toner powder should not only consider the vividness of color, but also its lightfastness and durability. By optimizing the ratio of toner powder ingredients, its stability under light can be improved. For example, increasing the proportion of resin can improve the adhesion and abrasion resistance of toner powder, thereby indirectly improving its lightfastness.Protective layer technology: After printing is completed, a protective coating can be applied to further enhance the lightfastness of the image. This coating can contain UV absorbers and antioxidants to provide additional protection. The protective coating can be transparent and will not affect the color performance of the image, but can significantly improve the durability of the image.Through the above technologies and strategies, the copier color toner powder can maintain the vividness and durability of the image under long-term light exposure. These measures not only improve the print quality, but also extend the life of the printed documents, making them more suitable for long-term storage and display.
