The so-called color-changing cups is exactly called thermal color-changing cups which is to print or bake color changing pigment on cups, once you put heat or cold water into cups, the patterns on cups will change with temperature and this is miraculous and interesting. The commonly used temperature range in our daily life is 7︒, 17︒, 27︒, 37︒ and 47︒. The hot drink cups choose 47︒ as the color changing range. When the temperature is higher than 47︒, the cup will change color. The cold drink cups choose 17︒ as the color changing range. When the temperature is lower than 17︒, the cup will change color. According to materials, color-changing cups can be divided into ceramics color-changing cups, glass color-changing cups, plastic color-changing cups, color-changing music cups and stainless steel color-changing cups.Among these, sales quantity of ceramic color-changing cups and glass color-changing cups are the largest. The technique of ceramic color-changing cups is the easiest to master. Plastic color-changing cups whose technique is hard are invented by Shenzhen Biansebao Arts & Crafts Company Ltd. Color-changing cups can also be sorted into ordinary color-changing cups and Entire color-changing cups. Entire color-changing cups are the cups which will change color the entire cup (except the cup handle). Ordinary color-changing cups refers to cups that will change partially.