Anti-fogging preservative film

Abstract

The invention discloses an anti-fogging preservative film, which can be in a single-layer structure and is mixed by the following ingredients in percentage by weight: 0.2-3% of anti-fogging agent, 42-99.6% of LLDPE (Linear low density polyethylene), 0-50% of MLLDPE (Metallocene linear low density polyethylene) and 0.2-5% of tackifier. The anti-fogging preservative film also can be in an A / B type double-layer structure and is composed of 10% of layer A and 90% of layer B in percentage by weight, or is composed of 20% of layer A and 80% of layer B, or is composed of 30% of layer A and 70% of layer B. The anti-fogging preservative film also can be in an A / B / C three-layer structure and is composed of 10% of layer A, 80% of layer B and 10% of layer C in parentage by weight, or is composed of 20% of layer A, 60% of layer B and 20% of layer C or is composed of 30% of layer A, 40% of layer B and 30% of layer C. No matter the anti-fogging preservative film is in the single-layer structure, the double-layer structure and the three-layer coextrusion structure, the preservative film has an anti-fogging effect because the antifogging agent is added into the raw material so as to avoid generating fog on the surface of the preservative film, which is convenient for consumers to clearly see the preserved commodity.

Description

technical field [0001] The invention relates to a fresh-keeping film, in particular to an anti-fog fresh-keeping film. Background technique [0002] PE cling film is a food-grade packaging material, which is almost always a consumable item in the household. PE plastic wrap is mostly made of LLDPE (Linear Low Density Polyethylene). PE cling film plays a role in tightly packing the package. After the product is packaged, it blocks the entry of oxygen, and the essential odor of the product is also blocked and emitted. However, when the PE cling film is cold, it is easy to generate fog on the surface, so that the user cannot see the fresh-keeping product. commodity, affecting the sales of the commodity. [0003] Therefore, it is necessary to develop an anti-fog fresh-keeping film so that consumers can see the fresh-keeping products clearly. ​​ SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide an anti-fog fresh-keeping film to avoid fog on ...

AI Technical Summary

Problems solved by technology

PE cling film plays a role in tightly packing the package. After the product is packaged, oxygen is blocked from entering, and the essential smell of the product is also blocked and emitted. However, when the PE cling film is cold, it is easy to generate fog on the surface, making it impossible for users to see the fresh-keeping product. commodities, affecting the sales of commodities