Aluminum foil container structure for food modified atmosphere packaging

Abstract

The invention discloses an aluminum foil container structure for food modified atmosphere packaging. The aluminum foil container structure comprises an aluminum foil box, the aluminum foil box is composed of an aluminum foil base plate and an aluminum foil circumferential side plate, one end of the aluminum foil circumferential side plate is provided with a smooth opening, the aluminum foil circumferential side plate is arranged in an inclined manner relative to the aluminum foil base plate, and the area of an opening plane of the aluminum foil circumferential side plate is larger than the area of the aluminum foil base plate; the aluminum foil base plate is provided with first reinforcing ribs inwards protruding towards the interior of the aluminum foil box, the aluminum foil circumferential side plate is provided with second reinforcing ribs inwards protruding towards the interior of the aluminum foil box, and the first reinforcing ribs and the second reinforcing ribs are communicated into a whole. The reinforcing ribs are connected into a whole, the rigidity of the box is improved, and meanwhile, the material thickness can be reduced; during air exchanger, air in most space isolated by the reinforcing ribs and located at the bottom of the container can be pumped out, the oxygen remaining rate is reduced to the maximum degree, and the food refreshing time is greatly prolonged. During food baking, heating is more even, and foods tightly attached to the box bottom cannot be burned in baking. In addition, an aluminum foil material can be repeatedly used and can be melted into an aluminum pig at the high temperature, and therefore environment protecting is achieved.

Description

technical field [0001] The invention relates to the technical field of modified atmosphere packaging devices, in particular to an aluminum foil container structure used for modified atmosphere packaging of food. Background technique [0002] In the field of food packaging, there is a packaging method of modified atmosphere packaging, which is also called modified atmosphere packaging, displacement gas packaging or inflatable packaging in China. Specifically, after the food is put into the box, the air in the box is first pumped out, and different proportions of oxygen, nitrogen or carbon dioxide gas are injected according to the different types of food to prevent the food from deteriorating in physical, chemical, biological and other aspects. Slow down the rate of quality degradation, thereby extending the shelf life of food and increasing the value of food. [0003] In the existing technology, most of the modified atmosphere packaging of food in the industry uses plastic b...

AI Technical Summary

Problems solved by technology

First, using this kind of material for modified atmosphere packaging, the gas in the packaging box can be exchanged with the outside world anytime and anywhere, the ideal protective gas in the box will be greatly attenuated in 4-5 days, and the shelf life is not ideal

Second, many foods in modern times have to be frozen at -40 degrees, and even use liquid nitrogen at -196 degrees to keep the nutrients in the food from being lost and the taste unchanged. Plastics are prone to become brittle and damaged in such low temperature environments, and Plastic has poor conductivity, which can easily cause long conduction time and inconsistent temperature inside the box

Third, plastic is a kind of chemical substance, which is easy to produce carcinogens at high temperature, which is harmful to the human body.

Fourth, the cost of recycling plastic materials is high, and there are many harmful components carried during recycling, most of which are discarded as domestic waste. This PP plastic is not easy to degrade and seriously pollutes the environment and the ocean. As a food ecological chain affect the human body

Fifth, when food is placed in the packaging box, such as thinly sliced ​​meat, it often clings to the bottom of the box, so that many airtight small spaces are formed between the food and the bottom of the box. The air in the air cannot be extracted during the air-conditioning replacement, resulting in a high amount of residual oxygen, and the part of the bottom of the food close to the box body has a shorter shelf life, and its freshness is different from other parts

Sixth, in many application scenarios, the aluminum foil boxed food is directly heated in the oven without changing the lunch box. In the related technology, unreasonable reinforcement ribs are set at the bottom of the box to store the food, which is easy to be unevenly heated and cause the food to burn

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