Anti-mist fruit and vegetable preservation packaging bag and preparation method thereof

Abstract

The invention discloses an anti-fog fruit and vegetable fresh-keeping packaging bag. The anti-fog fruit and vegetable fresh-keeping packaging bag is prepared from the following raw materials in parts by weight: 70-85 parts of modified polyethylene resin, 10-12 parts of anti-fog fresh-keeping masterbatch, ethylene ‑Vinyl acetate resin 30‑45 parts, antistatic agent 5‑8 parts, antioxidant 3‑4 parts, paraffin wax 2‑3 parts, bamboo silk fiber powder 4‑8 parts. The invention also discloses a preparation method of the anti-fog fruit and vegetable fresh-keeping packaging bag. Since the modified polyethylene resin is used in the present invention, it has good compatibility with other raw materials, and the resulting packaging bag has good anti-fog performance and high antistatic properties; when the fresh-keeping packaging bag is used to store and keep fresh fruits and vegetables, its modified atmosphere index is stable, It has strong two-way adjustment ability to O2 and Co2, strong ability to replace harmful gases, good moisture permeability, and is not easy to condense inside. It can store fruits and vegetables for a long time and have a good fresh-keeping effect.

Description

technical field [0001] The invention relates to the field of plastic packaging bag processing, in particular to an anti-fog fruit and vegetable fresh-keeping packaging bag and a preparation method thereof. Background technique [0002] At present, the polypropylene film used for fruit and vegetable packaging in the market is susceptible to drastic changes in temperature and humidity and the evaporation (emission) of moisture contained in the packaged items, and it is easy to form fog (water droplets) on the outside of the packaging bag. The formed fog The shape will affect the appearance of the packaging and then affect the value of the product, and the falling water droplets will cause discoloration and even rot of fresh fruits and vegetables. With the advancement of science and technology, the requirements for fresh-keeping packaging bags for fruits and vegetables are getting higher and higher, and various new types of fresh-keeping packaging bags continue to appear. Con...

AI Technical Summary

Problems solved by technology

[0002] At present, the polypropylene film used for fruit and vegetable packaging in the market is susceptible to drastic changes in temperature and humidity and the evaporation (emission) of moisture contained in the packaged items, and it is easy to form fog (water droplets) on the outside of the packaging bag. The formed fog shape, which will affect the appearance of the packaging and then affect the value of the product, and the falling water droplets will cause discoloration and even rot of fresh fruits and vegetables