In-glazed decor coming between under-glazed and on-glazed is a new pattern of ceramic decorative materials.? The temperature of decor firing is 1100 degrees -1300 degrees. Under the high temperature and fast firing conditions, the glaze of product is softened and melted, so that the pigment particles infiltrate into the glaze. After cooling glaze layer is closed, multicolored decorated pattern will be immersed into glaze, it makes the appearance of products colorful, translucent, silken and delicate. Because the multicolored decorated paint and glaze layer melt together, its antirubbing and intensity is greatly superior to the on-glazed, the resistant of acid and alkali chemical performance has been greatly improved, the product can be used in wash machinery and cooked at high temperature to steriliza. Its main advantage is the harmless of health. In-glazed decor products being free of the lead and cadmium, are becoming a more envirmentally friendly green products, and the first choice of the hotels and restaurants in the world.