Self-heating food heating bag

Abstract

The invention discloses a self-heating food heating bag. The heating bag is formed by assembling an outer packaging bag and a heating composition packaged in the outer packaging bag, the heating composition is prepared by mixing the following substances in percentage by mass: 25%-45% of aluminum powder, 20%-43% of calcium oxide, 5%-10% of sodium hydroxide, 1%-5% of carboxymethyl cellulose, 2%-7% of polyethylene glycol, 1%-4% of zeolite powder, 1%-4% of sodium chloride, 1%-4% of activated carbon and 0.5%-2% of graphite powder. The self-heating food heating bag is not limited by time and placesin use, free of open fire, safe, reliable, long in heat generation duration, high in heating efficiency, environmentally friendly, sanitary and capable of meeting the requirements of consumers in multiple areas. Meanwhile, exothermic reaction is quick and controllable, the price is low, and the method can be well applied to the field of self-heating food.

Description

technical field [0001] The invention relates to the technical field of heating compositions, in particular to a self-heating food heating pack. Background technique [0002] With the accelerated pace of social and economic development, people's pace of life is gradually accelerating, and the potential fast food market is getting bigger and bigger. As an important participant in the fast food market, self-heating food, its composition and content are also following people's Constantly changing as needs change. [0003] Self-heating food refers to pre-packaged food that does not rely on electricity, fire, etc., but is heated with its own heating pack. The heating package in it does not produce open smoke or open flame when producing heat, so it is also called a flameless heater. Its basic working principle is: through a certain activation method, the heating material in the heating package reacts chemically with the water source , release a large amount of heat during the re...

AI Technical Summary

Problems solved by technology

[0004] At present, due to the short development time of self-heating food, there are generally problems such as low output, high price, and low market recognition. Chinese patent CN200410006553. Iron powder, inorganic salt, activated carbon, water, and wood powder are mixed in a certain proportion, but the heat energy is released through the oxidation-reduction reaction of iron powder, and the exothermic heat is low, and the heat supplied is often not enough to completely heat the food

Patent CN200710121281.6 discloses the production method of "flameless heating agent", which is mainly prepared by mixing aluminum powder, calcium oxide, sodium hydroxide, sodium sulfate, and sodium chloride in a certain proportion, but the heating agent reacts The exothermic speed is fast, the heating time is short, and the heat retention capacity is low. At the same time, the peculiar smell produced by a large amount of quicklime and sodium hydroxide floats out during the exothermic process, which affects the appetite of the eater.

Patent CN105038726A discloses a production method of "a food heating pack", which mainly combines aluminum powder, calcium oxide, calcium hydroxide, diatomaceous earth, silicon dioxide, sodium chloride, and calcium carbonate with fluoride Sodium is mixed according to a certain ratio. Although it has the characteristics of low cost and high heating temperature, its heat release rate is slow. When it is used as a food heating agent, there is a serious problem of heat loss, and there will be a lot of odor brought by quicklime.

Images