A kind of self-sealing food packaging bag and using method thereof

Abstract

The invention discloses a self-sealing food packaging bag and a using method thereof, which belong to the field of food packaging. A self-sealing food packaging bag and a using method thereof are provided by a self-sealing block on the outside of the part where the inner layer is clamped and sealed. It is set so that after the packaging bag is opened, it can spontaneously approach each other without the action of external force, and at the same time drive the two self-sealing adsorption pads on the inner side to approach each other. The sealing block and the sub-sealing block are extruded and connected to each other, so that the multiple female sealing blocks and the coated soft magnetic strip are in close contact to realize self-sealing inside and outside. Compared with the existing technology, the artificial manual alignment process is reduced. , It reduces the difficulty of sealing, improves the convenience of sealing, and effectively avoids the situation that the user forgets to seal after taking the food, reduces the effect of food spoilage due to accidents, and reduces the food waste rate.

Description

technical field [0001] The invention relates to the field of food packaging, in particular to a self-sealing food packaging bag and a method for using the same. Background technique [0002] Food packaging bags are a kind of packaging design. In order to keep fresh and store food in daily life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and are used to hold and protect food. Food packaging bags can be divided into: ordinary food packaging bags, vacuum food packaging bags, inflatable food packaging bags, boiled food packaging bags, steamed food packaging bags and functional food packaging bags according to their application range. [0003] Food packaging bags have the following functions: [0004] Physical protection: The food stored in the packaging bag needs to avoid extrusion, impact, vibration, temperature difference and other phenomena. [0005] Shell protection: The shell can separate food fr...

AI Technical Summary

Problems solved by technology

[0012] Existing food packaging bags usually include two layers of seals, one is the outer layer of rubber seal, which has a tear on the surface, which is a destructive opening method, and the other is the inner layer of snap-fit ​​seal, which can be sealed multiple times Repeated use, after taking the food, snap them together again to still have a sealing effect, but in this way, in the actual operation process, it is necessary to align the two snap-fit ​​parts, but because the snap-fit ​​parts Usually it runs through the entire cross-section of the packaging bag, resulting in a large alignment surface, which makes it difficult to snap-fit ​​and seal. At the same time, the snap-fit ​​parts are usually slender structures, which further increases the difficulty of alignment, resulting in some missing parts. The alignment is successful, but there is some air leakage, and the sealing performance is affected. In actual operation, there are often cases of forgetting to seal, which leads to accelerated spoilage of food and increases the waste rate

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