Shell buttons, also known as real bene button, elegant texture, light color, has always been loved by the public.
From the perspective of the production and development of professional buttons in China, shell buttons are the first generation of professional button products. From the early twentieth century in the early twentieth century, China first used the conch shells and the shells of the Haihe River as raw materials in the coastal areas, and the workshops for shell buttons began to appear. At that time, the production of buttons was done by artificial foot machines. Pure manual physical operation. By the 1940s, it began to gradually introduce mechanical equipment.
Bay buckle production process is this:
Head car: blanking
The head car is also called the blanking car. The drill bit moves up and down and drills a round cymbal on the oyster shell. This is the shape of the button.
Two cars: grinding noodles
Two cars are known as grinding cars, rough buttons placed on the grinding mouth, to promote the rotation of the sand wheel, rough buttons were polished. After the thin buttons are thin, they are sorted.
Three cars: Modeling
Three cars are also known as noodle machines. Its function is to complete the button's shape. Buttons into the three-car faucet, to promote the cutter head to form a groove in the center of the button, the status of the button appeared.
Four cars: Drilling
The four cars are also known as eye strikers, and the holes in the buttons are formed in this process. The button was placed on the grinding wheel of the four-wheeled vehicle and pushed toward the rotating tungsten steel needle. The hole was then shot.
Five processes: peeling
Make a holey button, put it in hot water and cook until the black skin of the shell falls.
Six processes: polishing drift
Burned buttons were placed in a stepping bucket, put into water, rolled in a stepping bucket, rubbed against each other, polished for about two hours, and then soaked in a chemical solution. After 24 hours, the button was completely bleached and removed.
Seven Processes: Polishing
The chemically treated buttons are placed in a polishing drum, and stirred with hydrochloric acid and trace nitric acid. After ten pounds of repeated polishing, they are rinsed with fresh water and dried, and shell buttons are made.
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