Resin buttons are called unsaturated polyester buttons, and in Japanese they are called "lamador" buttons, and in Taiwan they are called "practice buttons", and they are the most popular buttons in modern times. The buttons made by adding colour paste have the characteristics of non-discolouration, strong refractive power, heat resistance, ironing resistance, corrosion resistance, wear resistance and so on. Therefore, resin buttons occupy an important position in women's clothing, while resin buttons in men's clothing are relatively single in style and colour. After the computer programmed laser button making machine is used for button manufacturing, it makes the laser button surface pattern and text engraving fine and perfect, which greatly enriches the cultural connotation of resin buttons as male decorative items. This is why they are so popular in men's clothing, especially in the mid-range.
Casein buttons, known as cheese buttons in China, are mainly made of protein extracted from cheese. After a special physical and chemical technology processing refined, its processing and production process, the principle is based on the principle of casein button production process developed. The new generation of casein buttons have all the advantages of nut buttons, but they are also resistant to moisture leaching and have a clear and pure colour appearance. However, because of its complex processing and manufacturing process, the cost is relatively high, so only a very few high-grade brand-name suits in China, while in Europe and the United States and Japan casein buttons have been extremely favoured by the suit.