Transparent preservative film for preserving agricultural product with micropores and preparation technology thereof

Abstract

The invention discloses a transparent preservative film for preserving agricultural product with micropores and preparation technology thereof. The preservative film is characterized by comprising: by weight, 1000-1200 parts of polyethylene, 100-120 parts of calcium carbonate, 3-30 parts of sodium alginate, 15-150 parts of chitosan, 300-600 parts of dicapryl phthalate, 2-8 parts of ultraviolet ray absorber, 20-50 parts of polysulfonyldiphenylene phenyl phosphonate, 1.5-30 parts of antibacterial agent, and 200-300 parts of beeswax, wherein dicapryl phthalate is a plasticizer. The preparation technology has good effect on making holes, and has simple process and low product cost. The film weight is increased by adding moderate inorganic particles, and the transparency of the film is increased, further the intensity and softness of the film are increased, which makes the preservative film has good preservation effect. So that the sale period is prolonged, the spoilage is reduced, and the operating cost of supermarket is reduced.

Description

technical field [0001] The invention belongs to the technical field of plastic packaging, and in particular relates to a preparation process of a transparent microporous fresh-keeping film used for preserving agricultural products. Background technique [0002] At present, in order to make the fruits and vegetables sold have a better selling point in the fruit and vegetable sales area of ​​the supermarket, several individual fruits and vegetables are often packaged with foam trays and plastic wrap and sold at a price. The second is to avoid direct contact between customers and fruits and vegetables to ensure hygiene and safety; the third is to enable customers to purchase on demand through clearly marked prices. Although fresh-keeping film is used to simply pack fruits and vegetables to make them more attractive, but because fruits and vegetables must not only prevent insect bites or other external damage, but also ensure that the bad gas generated during storage must be dis...

AI Technical Summary

Problems solved by technology

However, the currently used plastic wrap is difficult to do this, so there is a possibility of accelerated spoilage for fruit and vegetable products that cannot be sold in time