High-efficiency temperature-rising and heat-preserving T-shaped portable milk-warming and drink-warming paste adaptive to multiple containers

Abstract

The invention relates to the technical field of portable heating and heat preservation, and discloses an efficient heating and heat preservation T-shaped portable milk and drink warming paste matched with multiple containers, which comprises a transverse main body heating part and a longitudinal extension fitting part, and the transverse main body heating part and the longitudinal extension fitting part are vertically connected to form a disposable integrated T-shaped structure. Functional layer structures are arranged in the transverse main body heating part and the longitudinal extension fitting part, and each functional layer structure comprises a bonding layer, a heating layer and the like. According to the efficient temperature rise and heat preservation T-shaped portable milk and drink warming paste adaptive to the multiple containers, through an integrated T-shaped structure, the paste can be perfectly matched with various arc-shaped containers, the fitting degree and the heat conduction efficiency are improved, through the arrangement of a functional layer structure, the heating layer releases heat through an oxidation reaction, the ventilation control layer adopts a microporous PP film to regulate the heating temperature to be within the range of 38-45 DEG C, and the heat conduction efficiency is improved. The edge protection layer is made of silica gel and is prevented from being damaged, and the temperature sensing layer can display different colors along with temperature changes.

Description

Technical Field

[0001] This invention relates to the field of portable heating and heat preservation technology, specifically to a high-efficiency heating and heat preservation T-shaped portable milk and beverage warmer that is compatible with multiple containers. Background Technology

[0002] Disposable heating products refer to portable or special-purpose devices that are used only once and achieve heating function through a specific heating principle. They are widely used in medical, consumer, and industrial fields. Their core features include: single use (no need for repeated cleaning and disinfection), portability, safety, and adaptability to specific scenarios.

[0003] Current disposable heating products on the market, such as ordinary hand warmers, are mainly designed for human body heating. Their shape (mostly square or round) cannot fit well with cylindrical or conical beverage containers (such as baby bottles and mineral water bottles), resulting in low heat transfer efficiency, heating dead spots, and easy detachment. Dedicated portable bottle warmers often require a power source and are not suitable for outdoor use. In addition, existing products generally lack precise temperature control mechanisms and intuitive temperature indicators, posing a risk of burns or insufficient heating, and are especially unsuitable for heating temperature-sensitive breast milk or infant formula. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a portable T-shaped warming and heat-preserving patch for milk and beverages that is compatible with multiple containers. It has the advantages of being compatible with multiple containers, providing efficient heating, precise temperature control, and being safe and reliable. It solves the problems of poor fit, uneven heating, uncontrollable temperature, and limited application scenarios of traditional portable heating products.

[0005] (II) Technical Solution To achieve the above-mentioned goals of multi-container compatibility, efficient heating, precise temperature control, and safety and reliability, the present invention provides the following technical solution: a portable T-shaped warm milk / drink patch with high efficiency heating and insulation for multiple containers, comprising a horizontal main heating part and a vertical extension fitting part, wherein the horizontal main heating part and the vertical extension fitting part are vertically connected to form a disposable integrated T-shaped structure, and both the horizontal main heating part and the vertical extension fitting part are provided with functional layer structures inside; The functional layer structure includes an adhesive layer, a heating layer, a breathability control layer, an edge protection layer, and a temperature sensing layer. The adhesive layer is located on the innermost side of the functional layer structure. The heating layer is bonded to the side of the adhesive layer away from the adhesive end. The breathability control layer is covered on the side of the heating layer away from the adhesive layer. The outer sides of the breathability control layer, the transverse main heating part, and the longitudinally extended bonding part are wrapped with an edge protection layer. The temperature sensing layer is located on the outer side of the edge protection layer.

[0006] Preferably, the horizontal main heating part is strip-shaped and its length is adapted to the circumference of common containers, which can cover the largest diameter area of ​​the container. The vertically extending fitting part is circular or arc-shaped and fits the bottle neck, bottle body transition or cup bottom and other parts that are prone to heating dead angles.

[0007] Preferably, the functional layer structures within the transverse main heating part and the longitudinally extending fitting part of the T-shaped structure are relatively independent, and the connection area between the two is integrally formed with a thin film, which facilitates folding and adaptation to the curved surface of the container.

[0008] Preferably, the heating layer is made of iron powder, activated carbon, sodium chloride and vermiculite mixed in a specific weight ratio and encapsulated in a breathable non-woven fabric.

[0009] Preferably, the air permeability control layer is made of microporous PP membrane with an air permeability of approximately 50-70 g / (m²·24h).

[0010] Preferably, the adhesive layer is a food-grade self-adhesive, with an adhesion force of not less than 5N / 25mm, an applicable ambient temperature of -10℃ to 50℃, and no adhesive residue after peeling.

[0011] Preferably, the edge protection layer is made of food-grade silicone and is connected to the transverse main heating part and the longitudinal extension bonding part through a hot-melt process.

[0012] Preferably, the temperature sensing layer is a reversible thermochromic pigment marking printed on the outside of the edge protection layer, which displays blue when the temperature is below 38°C, green when the temperature is between 38°C and 45°C, and red when the temperature is above 45°C.

[0013] Preferably, the product is vacuum-sealed in aluminum foil packaging. Once the packaging is torn open and the product comes into contact with air, it will start heating up, and the heating time can last for 2-4 hours.

[0014] (III) Beneficial Effects Compared with existing technologies, this invention provides a highly efficient, portable, T-shaped warming and heat-preserving milk / drink patch that is adaptable to multiple containers, and has the following beneficial effects: 1. This high-efficiency, heat-generating, and heat-preserving T-shaped portable milk and beverage warmer is compatible with multiple containers. It features a heating layer and a breathable control layer. The microporous PP membrane of the breathable control layer can regulate the oxygen permeability, automatically limiting the oxidation reaction rate and maximum temperature of the heating layer within a safe range of 38-45℃, effectively preventing burns. It is especially suitable for temperature-sensitive milk products.

[0015] 2. This T-shaped portable milk and beverage warmer, which is compatible with multiple containers and features high-efficiency heating and insulation, is designed with an edge protection layer and a temperature sensing layer. The color change of the temperature sensing layer allows users to intuitively judge the temperature status without additional tools. The use of the edge protection layer and food-grade materials further ensures the safety and structural reliability of the product.

[0016] 3. This highly efficient, heat-generating, and heat-preserving T-shaped portable milk and beverage warmer is compatible with multiple containers. Its integrated T-shaped structure perfectly fits various curved containers, significantly improving fit and heat conduction efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial right-side sectional view of the structure of the present invention; Figure 3 This is a front view of the structure of the present invention.

[0018] In the diagram: 1. Horizontal main heating part; 2. Functional layer structure; 201. Adhesive layer; 202. Heating layer; 203. Breathability control layer; 204. Edge protection layer; 205. Temperature sensing layer; 3. Longitudinal extension bonding part. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-3 The highly efficient heating and heat preservation T-shaped portable milk and beverage warmer is compatible with multiple containers. It includes a horizontal main heating part 1 and a vertical extension fitting part 3. The horizontal main heating part 1 and the vertical extension fitting part 3 are vertically connected to form a disposable one-piece T-shaped structure. The horizontal main heating part 1 is strip-shaped and its length is adapted to the circumference of common containers, which can cover the largest diameter area of ​​the container. The vertical extension fitting part 3 is circular or arc-shaped and fits the bottle neck, bottle body transition or cup bottom and other parts that are prone to heating dead corners. The horizontal main heating part 1 and the vertical extension fitting part 3 are both provided with a functional layer structure 2 inside. The functional layer structure 2 includes an adhesive layer 201, a heating layer 202, an air permeability control layer 203, an edge protection layer 204, and a temperature sensing layer 205. The adhesive layer 201 is located on the innermost side of the functional layer structure 2. The heating layer 202 is bonded to the side of the adhesive layer 201 away from the adhesive end. The heating layer 202 is made of iron powder, activated carbon, sodium chloride, and vermiculite mixed in a specific weight ratio and encapsulated in a breathable non-woven fabric. The side of the heating layer 202 away from the adhesive layer 201 is covered by the air permeability control layer 203. The air permeability control layer 203 is made of microporous PP membrane with an air permeability of approximately 50-70 g / (m²). (24h) First, when the user removes the heat pack from the vacuum aluminum foil packaging and peels off the release paper, the adhesive layer 201 is exposed and adheres to the container surface. Simultaneously, oxygen from the environment begins to diffuse inward through the breathability control layer 203. Then, when the oxygen successfully reaches the heating layer 202, it undergoes an oxidation reaction with the active materials mixed within the layer. This process continuously and stably converts chemical energy into heat energy, generating heat. Simultaneously, the breathability control layer 203 directly controls the rate of the oxidation reaction by controlling the amount of oxygen entering the heating layer per unit time. The reaction rate is positively correlated with the heat generation. Therefore... By pre-setting the number and size of the micropores in the breathable membrane, the maximum temperature can be precisely limited to a safe range. When the temperature attempts to rise due to accelerated reaction, factors such as the pressure difference between the inside and outside of the membrane will naturally inhibit oxygen inflow, achieving dynamic balance and automatic temperature control. The outer sides of the breathable control layer 203, the transverse main heating part 1, and the longitudinal extension bonding part 3 are covered with an edge protection layer 204. The temperature sensing layer 205 is located outside the edge protection layer 204. The temperature sensing layer 205 is a reversible thermochromic pigment mark printed on the outer side of the edge protection layer 204. It displays blue when the temperature is below 38°C and blue when the temperature is below 38°C. The display shows green at 8-45℃ and red above 45℃. First, the edge protection layer 204 seals the edges of the entire functional layer, preventing leakage of internal heating materials due to friction or compression during use, thus enhancing the structural strength of the product and preventing accidental separation between layers. The temperature sensing layer 205 has a temperature-sensing material that changes its molecular arrangement according to temperature, thereby reflecting light of different wavelengths, which manifests as color changes such as blue, green, and red, providing users with intuitive visual guidance. This achieves a complete closed loop from start-up, heat generation, temperature control to status indication.

[0021] In the case implementation, the horizontal main heating part 1 of the T-shaped structure and the functional layer structure 2 in the longitudinal extension bonding part 3 are relatively independent. The connection area between the two is integrally molded with a thin film, which is convenient for folding and adapting to the curved surface of the container. Through this integrated and foldable structural design, the product can be more tightly wrapped when it is bonded to containers with different curved surfaces, further improving the heat conduction efficiency and heat preservation effect. At the same time, it is convenient for users to flexibly adjust the bonding method according to the shape of the container, enhancing the convenience and adaptability of use.

[0022] In this case study, the adhesive layer was made of food-grade self-adhesive with an adhesion strength of no less than 5N / 25mm. It was suitable for ambient temperatures ranging from -10℃ to 50℃ and left no adhesive residue after removal. The food-grade self-adhesive, with its adhesion strength of no less than 5N / 25mm, allowed the T-shaped warming milk and beverage stickers to adhere firmly to the surfaces of various containers such as baby bottles and mineral water bottles. Even in environments ranging from -10℃ to 50℃, it maintained good adhesion, providing a stable foundation for heat transfer from the subsequent heating layer. This characteristic of leaving no adhesive residue after removal not only prevented contamination of the container by adhesive residue, facilitating container reuse, but also improved the ease of cleaning after use, eliminating the need for users to spend extra time cleaning residual adhesive from the container after using the disposable warming stickers.

[0023] In the implementation of this case, the edge protective layer is made of food-grade silicone and is connected to the transverse main heating part 1 and the longitudinal extension bonding part 3 through a hot-melt process. The food-grade silicone material has good flexibility, heat resistance and sealing properties, and can closely fit the edge contours of the transverse main heating part 1 and the longitudinal extension bonding part 3, thus building a solid protective barrier for the internal structure. Through the hot-melt process, the edge protective layer 204 is firmly and sealed to the transverse main heating part 1 and the longitudinal extension bonding part 3. On the one hand, this effectively prevents the heating material from leaking from the edge, ensuring safety in use. On the other hand, it enhances the overall sealing of the product, reduces heat loss from the edge, further improves the heating and heat preservation effect, and also makes the product less likely to fall off during use, thus always playing a protective role.

[0024] In the case implementation, the product uses aluminum foil vacuum-sealed packaging. Once the packaging is torn open and the product comes into contact with air, it will start heating up, and the heating time can last for 2-4 hours. The aluminum foil vacuum-sealed packaging can effectively isolate air and prevent the heating layer from contacting oxygen, thus ensuring that the product remains in a stable, unactivated state within its shelf life. At the same time, it can also provide good protection for the internal functional layers, preventing them from being damaged by the external environment. This design, which starts heating up upon contact with air, eliminates the need for additional conditions such as power or fire sources, achieving the convenient effect of "ready to use immediately." This allows users to quickly start the product when they need to heat or keep beverages warm, and the heating lasts for 2-4 hours, which is sufficient to meet the time requirements for heating and keeping beverages warm in various daily scenarios.

[0025] In the case study, performance tests were conducted on the standard baby bottle compatible model to verify the product's core functional indicators. The results are as follows: 1. Heating efficiency test: At a room temperature of 25℃, when the product was used on a standard baby bottle containing 200ml of breast milk, the breast milk temperature rose to 38℃ after 5 minutes and stabilized at 45℃ after 10 minutes. The heating rate was 60% higher than that of ordinary heating pads, with no dead spots in heating. 2. Heat preservation performance test: When the product is used on 200ml of warm water at 45℃, the temperature remains at 42-45℃ for 2 hours and 40℃ after 4 hours. The heat preservation effect is better than that of existing disposable heating packs (the temperature drops to 32℃ after 4 hours). 3. Adhesion stability test: After the product is attached to the baby bottle, it is subjected to simulated outdoor shaking (shaking 30 times per minute) for 2 hours. The product does not fall off, the edges are not damaged, and there is no residue after the adhesive layer is peeled off. 4. Temperature label accuracy test: At four temperature nodes of 30℃, 38℃, 45℃, and 50℃, the color change of the temperature sensing label is ≤ ±2℃ from the actual temperature, and the label accuracy meets the design requirements. 5. Safety performance test: The product's maximum heating temperature is 45℃, and there is no risk of burns from continuous skin contact; the heating material is well encapsulated and there is no leakage; all materials in contact with the container (adhesive layer, protective layer) release no harmful substances.

[0026] In the case implementation, it was adapted to a standard wide-mouth baby bottle (7cm in diameter): 1. Structural parameter adjustment: The length of the horizontal main heating part is set to 22cm (to fit the circumference of a 7cm diameter baby bottle, with a 1cm fitting allowance). The vertical extension fitting part adopts a circular design with a diameter of 3cm to fit the bottom of the baby bottle. In the functional layer structure, the heating layer is mixed with iron powder 60%, activated carbon 15%, sodium chloride 10%, and vermiculite 15% by weight and encapsulated in breathable non-woven fabric. 2. Usage Test: At room temperature of 20℃, the product was used on a standard wide-mouth baby bottle containing 250ml of infant formula at 15℃. After tearing open the aluminum foil vacuum packaging, the horizontal heating part of the main body was attached to the largest diameter of the bottle body, and the vertically extended part was attached to the bottom of the bottle. Press for 5 seconds to ensure no air bubbles. After 3 minutes, the temperature sensing layer showed blue (temperature 28℃), after 7 minutes it showed green (temperature 39℃), and after 12 minutes it stabilized at 43℃. After continuous heating for 3.5 hours, the temperature still remained at 40℃. After tearing off the product, there was no adhesive residue on the surface of the bottle, the edge protective layer was undamaged, and there was no leakage of the heating material.

[0027] In the case implementation, it was adapted to irregularly shaped baby food containers (wider at the top and narrower at the bottom, with a top diameter of 6cm and a bottom diameter of 4cm): 1. Structural adjustment and bonding method: The horizontal main heating part is 19cm long, and the vertical extension bonding part adopts an arc design with an arc of 120° (to adapt to the tilt angle of the transition of the baby food jar body). Due to the irregular shape of the jar body, the horizontal main heating part is bonded along the maximum diameter of the jar body (2cm below the top). When bonding, the connecting film between the horizontal main heating part and the vertical extension bonding part is slightly folded according to the curvature of the jar body, so that the vertical extension bonding part is tightly bonded to the transition of the jar body. 2. Usage effect: At room temperature of 23℃, when the product was used on a 200ml pumpkin puree baby food jar at 20℃, the temperature sensing layer turned green after 5 minutes (temperature 38℃), stabilized at 42℃ after 10 minutes, and maintained the temperature between 39-42℃ for 2 hours; after simulating outdoor shaking (35 times per minute) for 2.5 hours, the product did not fall off, and the temperature of the baby food did not fluctuate significantly, meeting the temperature requirements for feeding baby food outdoors.

[0028] In this case study, the thermos cup (6cm in diameter, 20cm in height) was used: 1. Adaptive Design: The horizontal length of the main heating part is set at 19cm (to fit the circumference of a 6cm diameter thermos cup), and the vertical extension fitting part adopts an arc design with a length of 5cm and an arc of 90°, fitting 3cm below the mouth of the thermos cup (to avoid obstructing the opening and closing of the cup lid). The air permeability of the air permeability control layer is adjusted to 65g / (m²·24h) to slow down the heating rate and extend the heat preservation time. 2. Usage Test: In an outdoor environment of -5℃, the product was used on a thermos containing 300ml of warm water at 45℃. After the product was applied, the temperature sensing layer remained green (temperature 43-44℃) for 1 hour, green (temperature 41℃) after 3 hours, and blue (temperature 37℃) after 4 hours. During this period, the thermos was shaken by hand multiple times, and the product remained tightly attached without shifting, effectively making up for the thermos's insulation shortcomings in low-temperature environments.

[0029] In the implementation of the case, the child safety protection was optimized as follows: 1. Improved safety design: A biodegradable child-resistant film (requiring adult force to peel off) has been added to the outside of the edge protection layer to prevent children from accidentally tearing the product; the color markings on the temperature sensing layer have been enlarged (the marking size has been increased from 1cm×1cm to 2cm×2cm), and cartoon patterns (such as a small sun representing the suitable temperature) have been added to facilitate quick identification by parents; at the same time, the product has been subjected to extreme environmental tests, including freezing at -15℃ for 2 hours and exposure to sunlight at 50℃ for 2 hours. After the tests, the product's adhesive strength still remained at 5.2N / 25mm, the heating layer could generate heat normally, and the temperature was controlled within the range of 38-44℃; 2. Real-world usage scenario: When parents take their 3-year-old child out, they use this product to heat a regular baby bottle containing 200ml of milk at 22℃. The child attempts to tear off the protective film but fails. After the parent removes the film, the bottle is resealed. After 10 minutes, the temperature reaches 40℃, posing no risk of burns to the child. After use, parents can discard the product into a recycling bin. The biodegradable materials in the product can initially degrade within 3 months in a natural environment.

[0030] In this case study, the hot milk tea cup insulation sticker has the following basic information: This embodiment is designed for 500-700ml standard conical milk tea cups (cup body circumference 32-35cm, cup neck diameter 7cm, cup bottom diameter 8cm). Based on the original T-shaped structure, through structural adaptation and functional upgrades, it achieves precise fit and efficient heat preservation for milk tea cups, and is suitable for heating and heat preservation needs of milk tea in outdoor, office and other scenarios. It also adopts a stretchable elastic strip design, with a length of 35cm (suitable for milk tea cups with a circumference of 32-35cm) and a width of 7cm, covering the middle to lower part of the milk tea cup body (the area with a height of 12-18cm). The inner adhesive layer is a segmented elastic strip structure with a total of 8 strips, each 3cm long and 1.5cm apart. The strips are made of food-grade elastic self-adhesive. When applied, the elastic strips naturally stretch with the conical cup body (7cm upper diameter and 8cm lower diameter), closely adhering to the curved surface of the cup body without obvious gaps. After testing, the heat conduction efficiency is improved by 25% compared to the original structure, and the heat loss rate is reduced to below 10%.

[0031] When implementing this procedure, please follow these steps: 1) First, check if the product packaging is intact. After confirming that there is no damage, tear open the aluminum foil vacuum-sealed packaging to allow the product to come into contact with the air and start heating. 2) Then attach the horizontal main heating part 1 of the T-shaped structure to the maximum diameter of the container, and at the same time align the vertical extension of the bonding part 3 with the bottle neck, the transition of the bottle body or the bottom of the cup and other parts that are prone to heating dead corners. Press for 3-5 seconds to ensure that the adhesive layer 201 is bonded without air bubbles or gaps. 3) Observe the color change of the temperature sensing layer 205. When it turns green (temperature is 38-45℃), the liquid in the container can be used. 4) Finally, when the temperature sensing layer displays blue (temperature below 38℃) or red (temperature above 45℃) and the heating duration ends, tear off the product and discard it.

[0032] In summary, this high-efficiency, heat-generating, and portable T-shaped warming milk / drink patch, adaptable to multiple containers, utilizes a heating layer 202 and a breathable control layer 203. First, when the user removes the patch from the vacuum-sealed aluminum foil packaging and peels off the release paper, the adhesive layer 201 is exposed and adheres to the container surface. Simultaneously, oxygen from the environment begins to diffuse inward through the breathable control layer 203. Then, when the oxygen successfully reaches the heating layer 202, it undergoes an oxidation reaction with the active materials mixed within the layer. This process continuously and stably converts chemical energy into heat energy. While generating heat, the breathable control layer 203 directly controls the rate of the oxidation reaction by controlling the amount of oxygen entering the heating layer per unit time. The reaction rate is positively correlated with the heat generation. Therefore, by pre-setting the number and size of the micropores in the breathable membrane, the maximum temperature can be precisely limited within a safe range. When the temperature attempts to rise due to accelerated reaction, the air inside and outside the membrane... Pressure difference and other factors naturally inhibit oxygen inflow, achieving dynamic balance and automatic temperature control. By setting an edge protection layer 204 and a temperature sensing layer 205, the edge protection layer 204 seals the edge of the entire functional layer, preventing leakage of internal heating materials due to friction or compression during use, enhancing the structural strength of the product, and avoiding accidental separation between layers. The temperature sensing layer 205 has a temperature-sensing material that changes its molecular arrangement according to temperature, reflecting light of different wavelengths, manifesting as color changes such as blue, green, and red, providing users with intuitive visual guidance. This achieves a complete closed loop from start-up, heat generation, temperature control to status indication, solving the problems that dedicated portable bottle warmers often require a power source and are not suitable for outdoor scenarios. In addition, existing products generally lack precise temperature control mechanisms and intuitive temperature indications, posing risks of burns or insufficient heating.

[0033] Furthermore, the integrated T-shaped structure can perfectly fit various curved containers, significantly improving the fit and heat conduction efficiency. This solves the problem that existing ordinary heat patches, which are mainly designed for human body heating, cannot fit well with cylindrical or conical beverage containers (such as baby bottles and mineral water bottles) due to their shape (mostly square or round), resulting in low heat transfer efficiency, dead heating corners, and easy detachment.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable, T-shaped, heat-generating, and heat-preserving milk / drink warmer that is compatible with multiple containers, comprising a horizontal main heating part (1) and a vertically extending fitting part (3), characterized in that: The horizontal main heating part (1) and the longitudinal extension fitting part (3) are vertically connected to form a one-time integrated T-shaped structure. The interior of the horizontal main heating part (1) and the longitudinal extension fitting part (3) are both provided with a functional layer structure (2). The functional layer structure (2) includes an adhesive layer (201), a heating layer (202), a breathable control layer (203), an edge protection layer (204), and a temperature sensing layer (205). The adhesive layer (201) is located on the innermost side of the functional layer structure (2). The heating layer (202) is bonded to the side of the adhesive layer (201) away from the adhesive end. The breathable control layer (203) is covered on the side of the heating layer (202) away from the adhesive layer (201). The edge protection layer (204) is wrapped around the outer side of the breathable control layer (203), the transverse main heating part (1), and the longitudinal extension bonding part (3). The temperature sensing layer (205) is located on the outer side of the edge protection layer (204).

2. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The horizontal main heating part (1) is strip-shaped and its length is adapted to the circumference of common containers, which can cover the maximum diameter area of ​​the container. The longitudinal extension fitting part (3) is circular or arc-shaped and fits the bottle neck, bottle body transition or cup bottom and other parts that are prone to heating dead angles.

3. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The transverse main heating part (1) of the T-shaped structure and the functional layer structure (2) in the longitudinal extension fitting part (3) are relatively independent. The connection area between the two is integrally formed with a thin film, which is convenient for folding and adapting to the curved surface of the container.

4. The high-efficiency heating and heat preservation T-shaped portable milk / drink warmer patch adaptable to multiple containers as described in claim 1, characterized in that: The heating layer (202) is made of iron powder, activated carbon, sodium chloride and vermiculite mixed in a specific weight ratio and encapsulated in a breathable non-woven fabric.

5. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The air permeability control layer (203) is made of microporous PP membrane, with an air permeability of about 50-70 g / (m²·24h).

6. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The adhesive layer is a food-grade self-adhesive with an adhesion force of not less than 5N / 25mm, an applicable ambient temperature range of -10℃ to 50℃, and no adhesive residue after peeling.

7. The high-efficiency heating and heat preservation T-shaped portable milk / drink warmer patch adaptable to multiple containers as described in claim 1, characterized in that: The edge protection layer is made of food-grade silicone and is connected to the transverse main heating part (1) and the longitudinal extension bonding part (3) by a hot melt process.

8. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The temperature sensing layer (205) is a reversible thermochromic pigment mark printed on the outside of the edge protection layer (204). It displays blue when the temperature is below 38°C, green when it is between 38°C and 45°C, and red when it is above 45°C.

9. The high-efficiency heating and heat preservation T-shaped portable warming milk and beverage patch adaptable to multiple containers as described in claim 1, characterized in that: The product is vacuum-sealed in aluminum foil packaging. Once the packaging is torn open and the product comes into contact with air, it will start heating up, and the heating time can last for 2-4 hours.

Images