A Special Laboratory Method to Prepare Colored Ceramic Glazes Without Lead, Using a traditional Glazing Technique

In this research, an ancient Iranian ceramic technology, which was published previously for the first time, has been used to produce various colored ceramic glazes.  The color of such ancient glazes was always blue and the suitable body for that is unique due to high quartz content. There is no report of other color productions in productive workshop and scientific publications. The basic purpose of this research was to study the laboratory preparation of colored glazes without lead using the "sedimentations process". As a result of a series of experiments, we prepared colored ceramic glazes to determine the main factors in this process based on the unique oriental technique.