Each issuer uses a different identification, but the materials and manufacturing process remains the same.
Raw material
Credit cards are multiple layers of plastics that are laminated together. A card begins with the core, which is made from a plastic resin that is further mixed with opacifying materials and plasticizers that provide a proper appearance and consistency when used in an accurate proportion. This core material is then laminated with polyvinyl chloride acetate, which adheres with the core when applied to heat.
Various dyes are used to print the credit card in assorted colors. Some manufacturers prefer special magnetic ink to print the strip on the back of the card, and others use featured holograms to add a special printing process to their credit cards.
The manufacturing process
The manufacturing process involves multiple steps. First, the plastic core is melted and blended. The plastic core is printed with graphics and digits, which is done by using a silkscreen process. Following this, the magnetic strip is added by the stamping method, after which the core is ready to be laminated. Lamination assists in strengthening the card and protecting it. The core sheet goes through multiple systems of rollers that are fully bonded with metal platens to make the card more durable. Once the lamination is completed, the finished assembly is cut using the die-cutting method. The finished card is then prepared for shipping.
These credit cards are manufactured carefully by complying with standards established by the MasterCard, American Express, and Discover. Every blank piece of plastic is very thoroughly coded and tracked in the entire process of designing a credit card.