Part design:

Makrofol® ID Chemflex is a new polycarbonate (PC) film for plastic cards that boasts improved resistance against a number of media, including oils, greases and many types of hydrocarbons. The film is available in thicknesses of between 55 and 300 micrometers. The thin version is ideal for use as an overlay film for cards, including company ID cards, driver’s licenses, passports and other security and access documents that are also subject to high mechanical stresses, such as those in the processing and chemical industries. With a white pigment, the new film can also be used for the inside of cards, where its excellent chemical resistance is also an advantage. It has a higher level of resistance to a number of adhesives and the associated solvents that are often used in the production of chip cards. The card manufacturer thus benefits from a much greater processing window. A further positive feature of the film is its higher tear strength after notching. This ensures that microscopic tears in the film structure caused by laminated components with sharp edges, such as microchips, is kept to a minimum – even if the card is bent frequently.

Makrofol® ID Chemflex is also available in a special grade that can be inscribed using a laser. The resulting marking has as high a contrast as standard laser films from the Makrofol® ID range. Its lamination properties are of a similarly high quality, too. When the new film is laminated with Makrofol® ID at high temperature and sufficient pressure, the materials bond together inseparably. This means the inside of the card can no longer be accessed without causing damage, a fact that helps protect against counterfeiting.