Cotton Wrap Film Introduction of Cotton Wrap Film: The cotton warp film refers to a type of packaging material used in harvester machine to not only give protection to UV radiation but also making it faster and easier during the process of harvesting and transporting, saving time and cost of laboring for frammers and keeping the harvester machine like John Deere's CP690,CP770,CP7760 working automatically without taking a breathe. The inner layers of cotton wrap film are a non-tacky film with particular properties which prevent cotton from sticking to the wrap. The outer layers are a special formulated film which is tacky on one side only. The combination of these two types of film ensures that the round module will hold its uniformity for transport and processing.