company news about How to distinguish the material of buttons?

Give you a bunch of buttons with different colors and styles. How to distinguish and judge what buttons are made of? A small editor of China's button trading network is here to share and solve this problem for you.
The information about buttons can be roughly divided into plastic (resin, plastic), metal buttons (copper, iron, alloy), and natural buttons (shell, wood, coconut shell, bamboo). The process of making buttons from various materials is different. Some buttons look the same, and even professionals can't distinguish them with their eyes, so they can only be distinguished by breaking and scraping off their coats.
Buttons can be divided into plastic buttons and resin buttons. Plastic buttons and resin buttons are generally die-casting, so there will be a line on the edge of the button. Some factories may remove this line in subsequent processing, but its weight will be lighter than the resin (of course, some special plastics will be heavier). The resin buttons are mechanically carved and polished, so the appearance is very smooth without full mold lines. However, he is fragile, with a simple scratch on the surface, and will become soft when put in boiling water.
How to distinguish copper buttons from iron buttons? For copper and iron buttons, you can use a magnet to test them, and use a hard object to scrape away the plating layer on the surface. The brass color (gold) in the copper button surface. The buckle is black, which is the original color.
How to determine whether it is alloy button? The alloy clasp is relatively heavy and is made of die casting. Generally, all die lines are polished and polished, which may not be visible, but it is heavy and solid.