Moisture-proof and low temperature resistant fresh food packaging material

Abstract

The invention discloses a moisture-proof and low-temperature-resistant fresh food packaging material, which belongs to the technical field of packaging materials. Including the fresh-keeping antibacterial layer of the inner layer and the protective layer of the outer layer, the protective layer of the outer layer is prepared from the following components by weight: 50-80 parts of low-density polyethylene, 10-15 parts of nano-zinc oxide, 2-4 parts of coupling agent, 2-5 parts of plasticizer, 1-3 parts of cross-linking agent; the fresh-keeping and antibacterial layer of the inner layer comprises the following components by weight: 15-25 parts of bamboo charcoal powder , 10-15 parts of cornstarch, 10-15 parts of peach gum, 10-15 parts of castor bean oil, 10-15 parts of konjac glucomannan, 6-8 parts of silica powder, 0.5-1.5 parts of antibacterial agent. Under the premise of guaranteeing the characteristics of the original packaging material, the present invention can be decomposed by microorganisms without causing any pollution to the environment, and meanwhile has a certain antibacterial effect, strong mechanical properties, safety and non-toxicity, and strong environmental protection.

Description

technical field [0001] The invention relates to a component of a packaging material, in particular to a moisture-proof and low-temperature resistant fresh food packaging material, which belongs to the technical field of packaging materials. Background technique [0002] Modern human life is inseparable from packaged food, and providing safe and hygienic packaged food is the most basic requirement for food manufacturers. For a long time, food packaging mostly adopts traditional packaging methods and packaging materials, such as fresh-keeping packaging, modified atmosphere packaging and multi-layer composite material packaging. In recent years, with the improvement of people's living standards, food tends to be diversified, convenient and hygienic. Food often requires long-distance transportation and long-term storage. In this case, the requirements for food packaging technology are getting higher and higher. [0003] Microorganisms are small in size, various in variety, rap...

AI Technical Summary

Problems solved by technology

Most foods are rich in nutrients and high in water content, so they are easily contaminated by microorganisms and cause spoilage, which greatly shortens the shelf life of food

[0004] Existing food packaging materials have no antibacterial effect, and the material is not strong, easy to break, easy to damage at low temperature, and cannot be widely used