Batik dyes used in batik painting.

Since batik can dye cloth with blue background and white flowers, why has no one ever seen folk batik cloth with red background, yellow background and green background and white flowers (modern dyeing technology can completely do this)? This is because indigo dyeing is a redox reaction and can only be carried out in ordinary cold water. However, plant dyes such as safflower and genistein can only be dyed on cotton cloth in high temperature and hot water, otherwise it will fade easily. At this high temperature, beeswax has melted, and it is impossible to keep the flower shape that prevents dyeing, so it is difficult to make batik cloth of other colors in ancient times.