Nanoporous micro-breathing fresh-keeping bags, fresh-keeping bags that do not fog, special fruit and vegetable packaging bags for supermarkets, and fresh-keeping bags for fruits and vegetables that do not fog in supermarkets, have you seen them?
Anti-fog bags are plastic bags with anti-fog agents added to them. Plastic bags are plastic granules before production. Before processing, anti-fogging agent and various plastic granules are mixed together, and the produced plastic bags are anti-fogging bags.
Antifogging agent is made of porous tuff with gas adsorption, cristobalite and silica and other micro powders. After adding, it can improve the antifogging, ethylene absorption, water absorption, antibacterial and other properties of the film. , Vegetables play the role of anti-fog and preservation.
Because the price of anti-fogging agent is very high, twice the price of plastic particles, and requires a specific formula, there are not many companies that master this formula, so the price of anti-fog bags is also relatively high.
The anti-fog fresh-keeping masterbatch can not only be used for the preservation and transportation of fruits and vegetables at room temperature, but also can be used for the preservation of vegetables, fruits, meat, etc. under refrigeration conditions (such as refrigeration in refrigerators and cold storages). It eliminates the defect of unsatisfactory anti-fogging effect of general anti-fogging masterbatch when it is close to zero, and does not cause waxing on cooling rolls during the production of cast films.
The advantages of the new anti-fog masterbatch for food preservation polyethylene blow molding and cast film are that it works faster than the anti-fogging agent in the previous co-extruded multi-layer film or single-layer film. Effectively reduce water vapor and condense into a liquid water film, making the plastic wrap more transparent and clear; cost-effective, low dosage, and can significantly increase film transparency and surface gloss.