6+6 color CI flexo machines are printing machines used mainly for printing on plastic bags, such as PP woven bags commonly used in the packaging industry. These machines have the capacity to print up to six colors on each side of the bag, hence 6+6. They use a flexographic printing process, where a flexible printing plate is used to transfer ink onto the bag material. This printing process is known for being fast and cost-effective, making it an ideal solution for large-scale printing projects.