Plastic inner film of rice packaging bag

Abstract

The invention discloses a plastic inner film of a rice packaging bag, and relates to the technical field of plastic packaging materials. The plastic inner film of the rice packaging bag is prepared from the following raw materials in parts by weight: 35-40 parts of low-density polyethylene, 10-13 parts of polyester resin, 6-10 parts of carnauba wax, 6-10 parts of polycarbonate, 5-8 parts of montmorillonite, 4-6 parts of water pyroxene powder, 4-6 parts of wood powder, 3-5 parts of rosin glycerin ester, 3-5 parts of dampproof and insect-resistant agent, 2-3 parts of titanate coupling agent, 2-3 parts of polyethylene glycol 400, 1-2 parts of sldium lauryl sulfate, 1-2 parts of sodium abietate and 0.5-1 part of nano rubber powder. The plastic inner film of the rice packaging bag has an excellent preservation effect, and is capable of effectively preventing rice from mildewing and breeding insects, thus prolonging the shelf life of rice.

Description

Technical field: [0001] The invention relates to the technical field of plastic packaging materials, in particular to a plastic inner film of a rice packaging bag. Background technique: [0002] At present, there are mainly two forms of domestic rice packaging. One is ordinary packaging, which uses polypropylene plastic woven bags to package rice. No fresh-keeping technology is applied during the packaging process. This packaging method has a very poor fresh-keeping effect; the other Vacuumize the packaging bag with vacuum packaging technology, which has a good fresh-keeping effect, but because the shape of the rice itself and the choice of vacuum degree are not suitable, the packaging bag will wrap the rice tightly, and the two ends of the rice are sharp, which is easy to puncture the packaging bag Pinholes are formed, which cause air leakage in the packaging bag and make the vacuum packaging invalid. In addition, the surface of rice will be contaminated with bran powder d...

AI Technical Summary

Problems solved by technology

[0002] At present, there are mainly two forms of domestic rice packaging. One is ordinary packaging, which uses polypropylene plastic woven bags to package rice. No fresh-keeping technology is applied during the packaging process. This packaging method has a very poor fresh-keeping effect; the other Vacuumize the packaging bag with vacuum packaging technology, which has a good fresh-keeping effect, but because the shape of the rice itself and the choice of vacuum degree are not suitable, the packaging bag will wrap the rice tightly, and the two ends of the rice are sharp, which is easy to puncture the packaging bag Pinholes are formed, which cause air leakage in the packaging bag and make the vacuum packaging invalid

In addition, the surface of rice will be contaminated with bran powder during processing. On the one hand, when the rice absorbs moisture, microorganisms will multiply on the rice grains, and when the storage temperature exceeds 20°C, the rice is prone to insects; on the other hand, bran powder contains a lot of fat. , easy to oxidize and decompose, increase the fatty acid value, and finally promote rice mildew