▎ 摘　　要

NOVELTY - Ventilated preservative film with nano-pectin coating comprises one side of the bottom film (1) is provided with a sterilizing coating (11). The outer side of the sterilizing coating is provided with a nanobubble coating (12). The bottom film is distributed with holes and the aperture is 8-15 micro. The sterilizing coating, nano-bubble layer comprises pectin and sodium alginate. The sterilizing coating further comprises nano-titanium dioxide dispersed on the pectin. The nano-bubble layer further comprises nano-bubble water dispersed on the pectin. The bottom film opposite to the sterilizing coating is provided with an absorbing coating. The absorbing coating comprises pectin and konjac gum. USE - Used as ventilated preservative film with nano-pectin coating. ADVANTAGE - The preservative film has long fresh-keeping period and improves the economic value. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the preservative film. Bottom film (1) Sterilizing coating (11) Nano-bubble layer (12) Absorbing coating (13)