... be divided into hard aluminum foil, foil semi hard and soft foil.rigid foil: rolling without softening ( annealing ) foil, ... foil, usually used for forming processing.soft foil: rolling after full annealing and soft aluminum foil, soft texture, surface without residual oil. ... , such as packaging, composite, electrical materials, use of soft foil.Aluminum Foil for Food--including food packaging and food ...