34 results about "Self-heating food packaging" patented technology

The invention discloses a self-heating food packaging box. The self-heating food packaging box comprises box covers, an external box and an internal box. The internal box is placed inside the externalbox in an embedded manner from a top opening of the external box. Two positional relations of a packaging superimposed state and a heating separated state exist between the internal box and the external box. In the packaging superimposed state, the bottom of the internal box is in contact with the bottom of the external box in a superimposed manner, and both food bags and heating bags inside thepackaging box are tightly distributed inside the internal box correspondingly. In the heating separated state, the bottom of the internal box is separated from the bottom of the external box, and heating space is formed. The food bags inside the packaging box are placed inside the internal box, and the heating bags are placed in the heating space. The internal box and the external box are coveredby the box covers simultaneously. In the packaging superimposed state and the heating separated state, positional location between the internal box and the external box is achieved respectively. According to the self-heating food packaging box, the packaging volume of self-heating food is effectively reduced; carrying is convenient; operation is convenient and fast; the fabricating cost and transportation cost are saved; and the anti-deformation capacity of the packaging box is improved.

The invention discloses raw material draining equipment for processing of self-heating food. The raw material draining equipment comprises a bottom plate. A box is installed on the bottom plate, and the long end of the box is open. A driving motor and a plurality of reciprocators are arranged on the side wall and inner wall of the box correspondingly. A transmission mechanism is arranged on an output shaft of the driving motor. A material holding hopper is installed among the transmission mechanism and the multiple reciprocators jointly. A strainer is installed at the lower end of the materialholding hopper. A swing mechanism is connected to the output end of the transmission mechanism. A blowing mechanism is connected to the output end of the swing mechanism and is located above the material holding hopper. The transmission mechanism is matched with the reciprocators so that draining speed of raw material can be increased. The swing mechanism and the blowing mechanism are matched, thus the draining speed of raw material can be further increased, air flowing between the raw materials can also be ensured, and spoilage of the raw materials is prevented.

The invention relates to a self-heating food heating agent and a preparation method of the self-heating food heating agent; the self-heating food heating agent comprises main components of magnesium powder, iron powder and surface active agent; the preparation method comprises the step of utilizing an effective surface modification technology, leading the magnesium powder and the iron powder to form stable Mg-Fe alloy under the condition that the shapes of magnesium powder particles are not changed so as to form the heating agent. The heating agent not only has the characteristics of high heat efficiency and less dosage of a Mg-Fe system, and is mainly simple in processing technology, high in yield, low in production cost and suitable for the demand of large-scale batch production; and the heating agent is light to carry, and can be used for heating various foods under the condition of no heat source and combustion source.

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.

The invention discloses an application of a hydrogen inhibitor in a self-heating food heating agent. The hydrogen inhibitor is anhydrous cupric chloride or copper chloride; the self-heating food heating agent is a magnesium-iron series heating agent; the hydrogen inhibitor is 0.2-2 times the total weight of the heating agent. The hydrogen inhibitor is capable of inhibiting release of hydrogen, and more in heat release and higher in reaction speed as compared with the traditional magnesium-iron series heating agent; if no power supply and no heat source are provided, the self-heating food heating agent with the hydrogen inhibitor can be used for heating various kinds of food without releasing hydrogen, and is applicable to airtight spaces.

A self-heating hot pot and a self-heating food bag relate to the technical field of self-heating. A self-heating hot pot, which includes a container, food materials and a self-heating bag for automatically heating the food materials, the food materials include hot pot base materials, meat dishes, vegetables, spring tofu and vermicelli, hot pot base materials, meat dishes, vegetables, The spring tofu and vermicelli are packaged independently; among them, the hot pot base is packaged at a temperature above 100°C, the vegetables and vermicelli are vacuum-packed and then pasteurized, and the spring tofu is vacuum-packed after high-temperature and high-pressure sterilization , Meat dishes are sterilized by irradiation after being vacuum-packed. During the use of the self-heating hot pot, the safety and sanitation of food are guaranteed. A self-heating food package includes this self-heating hot pot. The self-heating food bag has great industrial application prospect.

The invention provides a novel self-heating food heating bag. The novel self-heating food heating bag consists of a polypropylene nonwoven fabric bag and a heating material, wherein the heating material composition is prepared by mixing aluminum powder of 50 to 200 meshes, aluminum powder of 200 to 400 meshes, calcium oxide, polyethylene glycol, sodium sulfate, coffee carbon powder, ethyl vanillinand lavender essence according to a certain proportion; and the self-heating food heating bag is not limited by time and places, avoids open fire, is safe and reliable, realizes long-time heating, has high heating efficiency, is environmentally-friendly and sanitary, can meet the requirements of customers in many regions and has long shelf life. Furthermore, the novel self-heating food heating bag can produce flavor capable of increasing appetite, is rapid and controllable in heating reaction, is high in cost performance, can be accepted by the customers and can be applied in the field of catering well.

Introduce a kind of causing heat agent used for food and the preparation method. magnesium and iron powder in several granularity and quality, under the condition of extrusion to change the shape, the short grained iron powder is bedded into the magnesium which has been tablettized. The causing heat is produced in a shape of local element, which is beaded. The thermal efficiency of the invention is higher, the dose is fewer, craft is easier and cost is lower. All kinds of food in flexible package can be heated up even without heat source and water.

The invention discloses a self-heating food split packaging heating structure. The self-heating food split packaging heating structure comprises a heating vessel, wherein a food box is clamped at an upper port of the heating vessel; the lower end of the food box is inserted into the heating vessel; the upper end of the food box is covered with a heat preservation cover; a steam pipe is inserted into the inner bottom wall of the food box; and two partition plates are symmetrically arranged on the outer side wall of the steam pipe. According to the self-heating food split packaging heating structure, the food box is clamped on the heating vessel, so that the food box is more conveniently taken after heating; the steam pipe communicates with the heating vessel and the food box, so that a layer-by-layer opening for treatment is not needed during heating, the number of operation steps are fewer, and the use is more rapid; and steam heating is more uniform through the steam pipe and an arc-shaped groove, and the food box is divided into a staple food area and a dish area through the partition plates and the steam pipe, so that the applicability of the self-heating food split packaging heating structure is improved.

The invention relates to a self-heating food package. The self-heating food package comprises a first packaging bag, first space, second space, a second packaging bag, self-heating agent raw materials and a separator. The first space is formed in the first packaging bag, and water is contained in the first space. The second space is formed in the first packaging bag. The second packaging bag is arranged in the second space, and to-be-heated food is contained in the second packaging bag. The self-heating agent raw materials are arranged in the second space and are in contact with the to-be-heated food. The separator is arranged between the first space and the second space and used for disconnecting or connecting the first space with the second space as required. The use process of the self-heating food package is easy and convenient to operate; when the self-heating food package is used, the separator is operated to enable the first space to be communicated with the second space, self-heating agents and the water are rapidly combined, a heating reaction is generated, and the highest temperature can be higher than 120 DEG C. The self-heating food package is low in cost, good in effect, rapid and convenient to use, safe, environmentally friendly and easy to popularize.

A self-contained and self-heating food, meal and/or drink package, comprising a heat-resistant carton, a heat-resistant tray, a heating element, a container having a food, meal and/or drink sealed therein, and a pouch containing an activator solution for reacting with the heating element to generate sufficient heat to heat the food, meal and/or drink in the container. To heat the contents of the container, the heating element is positioned within the tray and the activator solution is applied to the heating element. The container then is positioned over the heating element in the tray, and the tray with the heating element and container therein is positioned within the carton which serves as an oven for heating the food, meal and/or drink in the container.

The invention discloses a prepackaging self-heating food packaging box and a method. The packaging box comprises a box body and an inner box is embedded in the box body; a lower cavity is formed between the inner box and the bottom of the box body and an upper cavity is formed between the inner box and the top lid of the box body; the lower cavity contains a heating bag and a water bag; the innerbox contains food; a condiment packet is fixed on the inner side of the top lid; a switch is arranged on the box body or the top lid; and the switch can open the condiment packet and the water bag respectively or simultaneously. According to the arrangement, rotation of the switch is required in the process of heating; the upper drawstring is tight, and a condiment packet sealing element is firstpulled open and water is added to make the food moist; and the lower drawstring is loose, and a partition film and a water bag sealing member can be pulled open successively and water reacts with theheating bag to release heat. The operation is convenient and safe.

The invention relates to the technical field of self-heating food, in particular to a disposable self-heating rice heating box which comprises a heating box body, a combined sealing cover is installed on the top of the heating box body, a containing tray is arranged on the upper portion of the interior of the heating box body, and a connecting plate is arranged under the bottom of the containing tray. According to the steam heating device, the connecting plate, the combined sealing cover, the heat uniformizing holes, the heating box body, the short column and the containing tray are arranged, under connection and cooperation of the short column and the containing tray, the connecting plate can be arranged in the heating box body, when hot steam generated in the combined sealing cover flows, the heat uniformizing holes are formed in the top of the connecting plate, and the heat uniformizing holes are formed in the top of the connecting plate. The connecting plate can homogenize the rising hot steam in advance by means of a plurality of heat homogenizing holes formed in the front face of the connecting plate, so that the food is heated more uniformly by the hot steam, the uniformity of later food heating is guaranteed, and meanwhile, the heating efficiency of the whole heating box is improved.

The invention discloses a self-heating type food lunch box. The self-heating type food lunch box comprises an inner box and an outer box, wherein the inner box is arranged inside the outer box, the outer box comprises an outer box body and an outer box top cover connected with the outer box body in a matching mode, the inner box comprises an inner box body and an inner box top cover connected withthe inner box body in a matching mode, an interlayer between the inner box body and the outer box body is a heating layer, a heating bag is arranged in the heating layer, food is placed in the innerbox body, and an air hole communicating with the outside is formed in the side wall of the outer box body. The self-heating food lunch box is designed according to the principle of heat transmission science, has the advantages of being high in sealing performance, simple in structure, concise in principle, safe, stable, easy to install, convenient to produce and use and low in production and manufacturing cost, and well solves the problems that an existing self-heating food lunch box package itself is not prone to being degraded, the packaging structure is not reasonable, and food and a heat source are not completely isolated and the like.

The invention discloses labeling and code-spurting integrated equipment for a self-heating food packaging box. The equipment comprises a labeling machine, wherein a belt is arranged below the labelingmachine, a belt pulley is meshed with each of two ends of the belt, a rotating shaft is fixedly connected with the gyration center of each of the two belt pulleys, the rotating shaft of one belt pulley is fixedly connected with an external motor, a code sticking head is arranged at the bottom of the labeling machine, and a fixing device is connected onto the labeling machine. By means of a linkage mechanism consisting of sliders, first connecting rods, second connecting rods and propping plates, the mutual close movement of the two propping plates is driven by downward operation of the labelsticking head of the labeling machine, the correct labeling position is determined, vibration during labeling is reduced, meanwhile, the air cylinder and air pipe structures are arranged, dry air is exhausted by outlets of air pipes in the downward moving process of the label sticking head, the surface of food packaging to be processed is dried, the processing effect is improved, and the conditionthat use is affected due to the fact that a self-heating structure reacts with water in advance is avoided.

The invention discloses a food self-heating method. Heat is generated by heat release of a chemical reaction, the temperature of the heat is 200-300 DEG C, and food can be steamed or boiled. The food self-heating method has the advantages of being simple in production process, keeping the food to be steamed and boiled all the time through the simple chemical reaction, and being simple in the process operation and favorable for industrialization.

The invention relates to a self-heating food packaging container. The self-heating food packaging container is characterized in that the lower portion in a container body is provided with a supporting frame, a food packaging body is located on the supporting frame, the bottom of the supporting frame is provided with a water bag capable of being opened easily, the water bag is connected with a bag opening pull rope, the end of the pull rope is arranged on the upper portion of the container body, the bottom, opposite to the water bag, of the container body is provided with an exothermal agent packaging bag, and the container body is provided with a cover film. The self-heating food packaging container is characterized in that the water bag is opened through the pull rope outside the container body, the exothermal agent packaging bag generates heat after meeting water to heat objects in the food packaging body, the whole heating process is finished in the container body, and the food packaging body is taken out after heating is finished. The self-heating food packaging container is simple in structure, convenient to operate, free of making contact with exothermal agents and safe to use.

The invention relates to the technical field of processing of new materials and discloses a preparation method of a heating material for heating self-heating food. According to the invention, based onstudies on the principles of heat conduction, heat convection and heat transfer, the prepared magnetic porous-structure heating material is used as a heat source for self-heating of food, and good heat conduction effect is obtained; non-magnetic components are magnetized in virtue of magnetocaloric effect under the action of the magnetic force of nanometer iron oxide, so heat is further generatedto heat food; and the heating material does not generate harmful and dangerous gas in the use process, is high in heat release efficiency, can be repeatedly used after demagnetization, and is not affected in use effect. With the preparation method in the invention, the heating efficiency of the heating material for food can be remarkably improved, and heat production is stable; the heat release amount of the prepared heating material per unit mass reaches 1700-1800 kcal/kg; the prepared heating material is resistant to storage, light in weight, high in heat production efficiency, uniform in food heating, friendly to environment, and safe and convenient to used; and overturning is not needed in the using process of the heating material, so the taste and convenience of self-heating food areimproved.

The invention relates to the technical field of novel material processing and discloses a method of improving heating efficiency of a calcium oxide heat source in self-heating food. By coating calciumoxide powder with a nanoscale coating agent prepared, the physical and chemical characteristics of calcium oxide are changed, the heat loss is reduced and the heat transfer rate is optimized. The prepared coated calcium oxide is calcined to further form the modified calcium oxide heat source, so that the heat generating rate and the heat generating efficiency of calcium oxide are improved obviously, the heat loss in a heating process of a reaction can be reduced, and the safety and heating efficiency of calcium oxide are improved. The method can improve the heating efficiency of the calcium oxide heat source obviously, heat is generated stably, and the quantity of released heat of a heat source material in unit mass is increased by 2-3 times. The heat source material is unlikely to be affected with damp to deteriorate, is uniform to heat, and needs not to be overturned in a using process, so that the problem that an existing calcium oxide heat source is large in use level, small in produced heat in unit dosage and non-uniform in heating degree.

The invention discloses a raw material weighing device for self-heating food processing. The device comprises a support base, a mounting plate and a column. The support base is arranged in parallel with the mounting plate, and the mounting plate is provided with a driving device. An upper part of the supporting seat is fixedly provided with a mounting seat, a locking claw is rotatingly mounted ona side wall of the mounting seat, a ratchet disc is fixedly connected to an output end of the driving device, a plurality of hoppers are symmetrically mounted on the ratchet disc in a circumferentialdirection, and the column is provided with a feeding device and a detecting device. The structure of the raw material weighing device is simple, multiple gravity sensors can be replaced by using a setof laser transmitting and receiving devices and the ratchet disc together, the measurement is accurate, and the cost is low.

The invention relates to a multi-layer self-heating food heating bag which comprises an interlayer type thin film, a heating agent A, a heating agent B, a heat conducting agent A, a heat conducting agent B, an aromatic and a hydrophilic agent; the interlayer type thin film is composed of five thin film bodies which are mutually nested and independently sealed, the five thin film layers are respectively a first thin film, a second thin film, a third thin film, a fourth thin film and a fifth thin film from inside to outside, and a first interlayer, a second interlayer, a third interlayer and a fourth interlayer are respectively formed by filler substances between every two adjacent layers of films in a space between the adjacent thin films, the first thin film is filled with a heat conducting agent A, the first interlayer is filled with a heat generating agent A and a heat conducting agent B, the second interlayer is filled with the heat conducting agent B and a hydrophilic agent, the third interlayer is filled with a heat generating agent B and the heat conducting agent A, and the fourth interlayer is filled with the heat conducting agent B, an aromatic agent and a hydrophilic agent.

The invention provides an integrated self-heating hot pot. The technical problems that in traditional self-heating hot pot package, heating operation is inconvenient, and potential safety hazards exist and the technical problems that in improved self-heating food packaging boxes, heating fails and food goes bad due to the fact that purified water bags are broken can be solved. The integrated self-heating hot pot comprises a sealing cover, an outer shell, an inner shell and a self-heating bag, the sealing cover is buckled to the outer shell, the inner shell is arranged on the upper portion of an inner cavity of the outer shell, and the self-heating bag is arranged on the lower portion of the inner cavity of the outer shell. The integrated self-heating hot pot is characterized in that an inner cavity of the inner shell is partitioned into a first cavity and a second cavity which are independent of each other and do not communicate with each other, the first cavity is used for containingfood and seasoning bags, an opening forming mechanism is arranged in the second cavity, a water injection port can be formed in the bottom of the second cavity through the opening forming mechanism, and the water injection port communicates with the lower portion of the inner cavity of the outer shell. Water is injected into the self-heating bag through the water injection port, that is to say, the inner shell does not need to be taken out, and the purified water bag does not need to be arranged inside.