Microwave-specific food package bag and manufacturing method thereof

Abstract

The invention provides a microwave-specific food package bag and a manufacturing method thereof. The manufacturing method comprises the steps that air holes are formed in a plastic package body, film brei is brushed on the air holes, and the food package bag is obtained when the film brie is dried; the manufacturing method of the film brei comprise the steps that the corn starch and the crosslinked starches are mixed according to the proportion of 4:1, and starch slurry with 25% concentration is prepared when the mixed starches dissolve in water; the PH value is adjusted; the calcium chloride solution with 3.6% concentration is added into the starch slurry, and the starch slurry is stirred and heated to 70 DEG C; the starch slurry is cooled to 45 DEG C rapidly when the starch slurry is pasted fully, and the isoamylase is added into the pasted starch slurry according to the proportion that adding 50 ug isoamylase to per g of gram of starch; stirring is conducted for 3 hours, the isoamylase with equal amount is added further, stirring is conducted for 6 hours, and power brei is prepared after filtrating through a gauze. According to the microwave-specific food package bag and the manufacturing method thereof, starch film can melt gradually under a high-temperature and high-humidity environment, so that the food package bag can ventilate automatically.

Description

technical field [0001] The invention relates to a food packaging bag, in particular to a food packaging bag which can be used for microwave heating. Background technique [0002] The current food packaging materials include paper, plastic, etc. In order to keep the food hygienic, the food packaging bags are sealed, so as to ensure that the food will not be polluted during transportation and sales. However, when most foods are heated by microwaves, they are The packaging bag cannot be sealed, because the water vapor generated by the food heating will flood into the packaging bag in large quantities, and the packaging bag needs to be opened. Although this is feasible, there is still the possibility of contamination. At the same time, when food is supplied on a large scale, it is impossible to remove each Tearing the packaging bag is time-consuming and laborious. Therefore need to develop a kind of food packaging bag that can not only keep airtightness but also direct microwav...

AI Technical Summary

Problems solved by technology

[0002] The current food packaging materials include paper, plastic, etc. In order to keep the food hygienic, the food packaging bags are sealed, so as to ensure that the food will not be polluted during transportation and sales. However, when most foods are heated by microwaves, they are The packaging bag cannot be sealed, because the water vapor generated by the food heating will flood into the packaging bag in large quantities, and the packaging bag needs to be opened. Although this is feasible, there is still the possibility of contamination. At the same time, when food is supplied on a large scale, it is impossible to remove each Tearing the packaging bag is time-consuming and laborious

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