Anti-fogging packing material

Abstract

The invention discloses an anti-fogging packing material. The anti-fogging packing material comprises a bonding base layer, an anti-fogging layer, a bonding layer and a waterproof surface layer. The anti-fogging layer is prepared from zeolite modifying agent, polypropylene, antioxidant and calcium stearate; the zeolite modifying agent is prepared from zeolite and EVA; the zeolite is nanometer zeolite. The waterproof surface layer is a polytetrafluoroethylene film layer. The anti-fogging packing material prepared from the components can be effectively used on a showing packing container at the low temperature to serve as a showing material, and low-temperature fogging is effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to an anti-fogging packaging material and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, people's demand for films for food processing and packaging is also increasing, especially for the packaging of some fresh vegetables and fruits. Usually, in order to display their products, some merchants usually open a window on the packaging box or bag of the product, and then use the transparent packaging material as a see-through window, so that consumers can directly see the packaged product or part, but for some food Especially fresh vegetables, fruits and other semi-finished products that have undergone secondary processing are usually stored in low-temperature refrigerators for display to consumers, but this kind of product is easy to be produced due to the respiration or fermentation of v...

AI Technical Summary

Problems solved by technology

Usually, in order to display their products, some merchants usually open a window on the packaging box or bag of the product, and then use the transparent packaging material as a perspective window, so that consumers can directly see the packaged product or part, but for some food Especially fresh vegetables, fruits and other semi-finished products that have undergone secondary processing are generally stored in low-temperature refrigerators for display to consumers, but this kind of product is easy to be produced due to the respiration or fermentation of vegetables or fruits. A temperature difference will cause the water vapor sealed in the package to evaporate or other volatile substances to carry water vapor to adhere to the transparent packaging film, form a fog and distribute in large quantities on the packaging film, which cannot be directly removed by consumers. When using such products, they will refuse to buy these products, and some anti-fogging packaging materials currently on the market generally use anti-fogging agents, mainly: glycerol monooleate, sorbitan monopalmitate, sorbitol Anhydride monostearate or polyethylene oxide, glycerol monostearate, etc. to improve, but for special storage packaging such as refrigerated vegetables and fruits, atomization still exists, and the effect is not very good

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