Multifunctional preservative film

Abstract

The invention discloses a multifunctional preservative film which comprises an outer packing box. A film outlet hole is formed in the outer surface of the outer packing box; a preservative film is arranged on the inner surface of the outer packing box; a color-changing label is arranged on the outer surface of the upper end of the preservative film; and a cutter is fixedly connected to the outer surface of the upper end of the film outlet hole. According to the multifunctional preservative film provided by the invention, the color-changing label and the cutter are arranged, and a green environmental-friendly color-changing paint coated on the color-changing label can turn yellow gradually as time goes on, so that when the preservative film is used for packing food and placed into a refrigerator, the storage time of food in the refrigerator can be judged according to the color of the environmental-friendly color-changing paint on the color-changing label, and the whether the food is edible or not is determined, and the health of people is ensured; and when in use, a user can cut off the preservative film through the cutter, so the waste is avoided, the multifunctional preservative film is convenient to use, the functionality is increased, and a better use prospect is brought.

Description

technical field [0001] The invention relates to the field of a fresh-keeping film, in particular to a multifunctional fresh-keeping film. Background technique [0002] Existing plastic wrap is the film that wraps on the surface of food, in order to reduce the degree of food contamination by bacteria and prolong the edible period of food, plastic wrap generally has film, plastic wrap and packing box etc.; There are certain disadvantages. When using the traditional plastic wrap, it is impossible to judge the time when the food is placed in the refrigerator through the surface, causing the food that has been placed for a long time to be eaten, which affects health. The traditional plastic wrap cannot easily cut off the plastic wrap, which is easy to cause It is wasteful and inconvenient to use, and the functionality of traditional plastic wraps is relatively single, which has brought certain impacts to users. For this reason, we propose a multifunctional plastic wrap. Content...

AI Technical Summary

Problems solved by technology

[0002] Existing plastic wrap is the film that wraps on the surface of food, in order to reduce the degree of food contamination by bacteria and prolong the edible period of food, plastic wrap generally has film, plastic wrap and packing box etc.; There are certain disadvantages. When using the traditional plastic wrap, it is impossible to judge the time when the food is placed in the refrigerator through the surface, causing the food that has been placed for a long time to be eaten, which affects health. The traditional plastic wrap cannot easily cut off the plastic wrap, which is easy to cause It is wasteful, inconvenient to use, and the functionality of traditional plastic wrap is relatively single, which has brought a certain impact on users. Therefore, we propose a multifunctional plastic wrap

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