Lapel Pin - Modern Manufacturing Process

Modern Manufacturing Process

Almost all manufacturing is currently done in China, specifically in and around Kunshan, a satellite city in the greater Suzhou region that is administratively at the county-level in southeast Jiangsu, China, just outside Shanghai. Inexpensive labor in China has made non-Chinese production of lapel pins non-existent.

In the die struck manufacturing process there are five basic types of pins: cloisonné, soft enamel, photo etched, screen printed and 4-color printed. In all processes, the outer shape of the pin is stamped out from a sheet of steel, aluminum, copper, brass or iron. In the case of cloisonne and soft enamel, the shape and the design are stamped out.

Cloisonné
Sometimes called epola or hard enamel, cloisonné is stamped out from a sheet of copper. The stamping leaves recessed areas, or pools, which are filled with enamel powder and high fired at 800 - 900 degrees. After cooling, the surface of the pin is ground down to a smooth finish and then the copper is plated.

Soft enamel
This process is like epola and cloisonné in that strips of metal separate areas of color. Unlike cloisonné, the areas of color rest below the metal strip surface, which can be felt when you run your finger over the surface. Like the photo etched process, the top can be covered with protective epoxy so that the piece appears smooth.

Photo etched
In the photo etch process, only the shape of the piece is stamped out. The design on the face of the pin, is chemically etched into the base metal, then color-filled by hand and baked before being polished. In the final step, a thin coat of clear epoxy can be applied to the surface.

Photo Dome
This process begins by printing the art or design on vinyl or paper and then applying it to a metal pin base. The vinyl is then coated with an epoxy dome that protects the art from wear and the elements. This process is gaining in popularity because of advances in printing resolutions and the ability to complete these pins quickly in the United States.

Screen printed
Screen printing, a.k.a. silk screening is produced by applying each color to the metal base using a "silk screen" process. These are blocks of solid color. A very thin epoxy coat protects the color material from scratching.

4-Color process
4-colors process, a.k.a. offset printing, allows for bleeds and blends of colors, as is used in magazines. The colors are printed in the traditional CMYK process. This style is can be used for complex art and photo reproduction. An unlimited amount of colors can be used.