Double-layer warming paste

Abstract

The utility model belongs to the technical field of thermal therapy patches, and discloses a double-layer warm patch which comprises a piece of film-coated airtight cloth, the top of the film-coated airtight cloth is connected with a perforated breathable glued PE film, a medicine storage cavity is formed between the film-coated airtight cloth and the perforated breathable glued PE film, medicine powder is arranged in the medicine storage cavity, and the film-coated airtight cloth is connected with the perforated breathable glued PE film. The bottom of the film-covered airtight cloth is connected with a non-woven fabric breathable film, a heating material storage cavity is formed between the film-covered airtight cloth and the non-woven fabric breathable film, a heating material is arranged in the heating material storage cavity, the top of the perforated breathable glued PE film is connected with anti-sticking release paper, the bottom of the non-woven fabric breathable film is connected with breathable release paper, and the top of the perforated breathable glued PE film is connected with the breathable release paper. The bottom of the breathable release paper is connected with the airtight release paper, the non-woven fabric breathable film, the film-covered airtight cloth and the perforated breathable gluing PE film are heat-sealed to form a double-layer inner bag, one layer is filled with the heating material, and the other layer is filled with the medicine powder, so that the influence of the heating material on the volatilization of the medicine powder can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of heat therapy patch technology, specifically a double-layer heat patch. Background Technology

[0002] Heat packs, also known as hand warmers, are sheet-like patches used for warmth. They can be categorized by use into regular heat packs and those with specific functions. Regular heat packs are primarily used for body warmth, such as being applied to clothing to provide warmth to the abdomen, waist, and shoulders. There are also heat packs specifically designed to relieve menstrual cramps in women; their shape and heating areas are designed to better conform to the physiological curves of the abdomen. Additionally, there are joint heat packs designed to relieve joint pain; their size and flexibility are suitable for application to joints such as the knees and elbows.

[0003] Heat patches use the principle of "oxidative exothermics" and microporous oxygen permeability technology to give the product a heating function. Most heat patches on the market are applied directly to the skin and are not suitable for people who are allergic to adhesives. Single-layer heat patches with added medicinal powder (such as mugwort, motherwort, ginger powder, etc.) can be applied to the outside of clothing. However, the medicinal powder is affected by the moisture in the heating material, resulting in a short shelf life. At the same time, the components in the medicinal powder are adsorbed by the charcoal powder in the heating material, resulting in less volatilization and weaker effect.

[0004] Therefore, a double-layer heat pack is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a double-layer heat patch, which has the advantage of isolating the heating material from traditional Chinese medicine or other medicinal powders, thus avoiding affecting the volatilization of the medicine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-layer heat patch, comprising a laminated air-impermeable fabric, a perforated breathable and adhesive-coated PE film connected to the top of the laminated air-impermeable fabric, a drug storage cavity formed between the laminated air-impermeable fabric and the perforated breathable and adhesive-coated PE film, the drug storage cavity containing medicinal powder, a non-woven breathable membrane connected to the bottom of the laminated air-impermeable fabric, a heating material storage cavity formed between the laminated air-impermeable fabric and the non-woven breathable membrane, the heating material storage cavity containing heating material.

[0007] Preferably, the edges of the coated air-impermeable fabric, the perforated breathable adhesive PE film, and the non-woven breathable film are joined by hot-pressing composite connection.

[0008] Preferably, the top of the perforated and breathable coated PE film is connected to an anti-stick release paper, and the edge of the anti-stick release paper is provided with a first easy-tear strip.

[0009] Preferably, the bottom of the nonwoven breathable membrane is connected to a breathable release paper, and the bottom of the breathable release paper is connected to an impermeable release paper.

[0010] Preferably, the nonwoven breathable membrane and the breathable release paper, as well as the breathable release paper and the non-breathable release paper, are bonded together by applying adhesive.

[0011] Preferably, the edges of the breathable release paper and the non-breathable release paper are respectively provided with a second easy-tear strip and a third easy-tear strip.

[0012] Preferably, the breathable release paper has evenly distributed air pores.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses non-woven breathable membrane, laminated non-breathable cloth, perforated breathable coated PE film, etc., which are heat-sealed together to form a double-layer inner bag. One layer contains the heating material and the other layer contains the medicinal powder (such as mugwort, motherwort, glucosamine chondroitin, etc.), which can avoid the heating material from affecting the volatilization of the medicinal powder.

[0015] 2. This utility model uses a breathable release paper and an impermeable release paper. When in use, the impermeable release paper is removed, allowing external oxygen to pass through the breathable release paper and the non-woven breathable membrane to react with the iron powder in the heating material. However, at this time, the external oxygen is blocked by the breathable release paper, thus controlling the amount of oxygen and the heating temperature. After removing the breathable release paper, the amount of oxygen contact is increased, thereby increasing the heating temperature. Thus, the heating temperature of the heat pack can be controlled within a certain range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the anti-sticking release paper of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the breathable release paper of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the airtight release paper of this utility model.

[0022] In the diagram: 1. Laminated, airtight fabric; 2. Perforated, breathable, adhesive-coated PE film; 3. Drug storage chamber; 4. Drug powder; 5. Non-woven breathable membrane; 6. Heating material storage chamber; 7. Heating material; 8. Anti-stick release paper; 9. First easy-tear strip; 10. Breathable release paper; 11. Airtight release paper; 12. Second easy-tear strip; 13. Third easy-tear strip; 14. Ventilation holes. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 6 As shown, this utility model provides a double-layer heat patch, including a laminated air-impermeable fabric 1 for separating the medicinal powder 4 from the heating material 7. A perforated, breathable, adhesive-coated PE film 2 is connected to the top of the laminated air-impermeable fabric 1, allowing the medicinal powder 4 to evaporate and providing adhesiveness for easy adhesion to clothing. A drug storage cavity 3 is formed between the laminated air-impermeable fabric 1 and the perforated, breathable, adhesive-coated PE film 2 for storing the medicinal powder. The drug storage cavity 3 contains the medicinal powder 4, which can be one or a mixture of several of the following: mugwort, motherwort, ginger powder, etc. A non-woven breathable membrane 5 is connected to the bottom of the laminated air-impermeable fabric 1, allowing air to pass through to facilitate the reaction of oxygen with the iron powder of the heating material 7 and to facilitate the adsorption of moisture from the air by the carbon powder, thereby increasing the reaction rate. A heating material storage cavity 6 is formed between the laminated air-impermeable fabric 1 and the non-woven breathable membrane 5 for storing the heating material 7. The heating material storage cavity 6 contains the heating material 7. The heating element 7 is a mixture of iron powder, activated carbon, vermiculite, and salt. Iron powder acts as a reducing agent during the heating process, and oxygen reacts with it to form ferric oxide (such as ferric oxide). This chemical reaction is exothermic, generating heat. Activated carbon primarily acts as an adsorbent, absorbing moisture from the air to create a favorable environment for the oxidation reaction of the iron powder. Moisture acts as a catalyst, accelerating the oxidation reaction and allowing the heating element to heat up faster. Vermiculite, a mineral with excellent heat-retention properties, helps retain heat and slows heat loss, allowing the heating element to maintain its heat for a longer period. Salt acts as an electrolyte during the heating process, enhancing the electrical conductivity between iron powder and activated carbon, thus accelerating the oxidation-reduction reaction and contributing to rapid heat generation.

[0025] Specifically, the edges of the laminated air-permeable fabric 1, the perforated breathable adhesive PE film 2, and the non-woven breathable film 5 are joined by hot pressing.

[0026] Furthermore, the top of the perforated and breathable coated PE film 2 is connected to an anti-adhesive release paper 8. The edge of the anti-adhesive release paper 8 is provided with a first easy-tear strip 9. The anti-adhesive release paper 8 can prevent the powder 4 from evaporating outward and can also prevent the perforated and breathable coated PE film 2 from adhering. The first easy-tear strip 9 makes it easy to tear off the anti-adhesive release paper 8.

[0027] Furthermore, the bottom of the nonwoven breathable membrane 5 is connected to a breathable release paper 10, and the bottom of the breathable release paper 10 is connected to an impermeable release paper 11. The impermeable release paper 11 can prevent outside air from entering the heating material storage cavity 6, and the breathable release paper 10 can reduce the amount of air entering. However, after tearing off the breathable release paper 10, the amount of air entering can be increased, thereby controlling the heating temperature within a certain range.

[0028] It is worth noting that the non-woven breathable membrane 5 and the breathable release paper 10, as well as the breathable release paper 10 and the non-breathable release paper 11, are bonded together by applying adhesive.

[0029] It is worth noting that the edges of the breathable release paper 10 and the non-breathable release paper 11 are respectively provided with a second easy-tear strip 12 and a third easy-tear strip 13, which facilitates the tearing off of the breathable release paper 10 and the non-breathable release paper 11.

[0030] It is worth mentioning that the air-permeable release paper 10 has evenly distributed air holes 14, and the number and size of the air holes 14 limit the amount of outside air passing through.

[0031] Working principle and process: A double-layer inner bag is formed by heat-sealing a non-woven breathable membrane 5, a laminated non-breathable fabric 1, and a perforated breathable adhesive-coated PE film 2. One layer contains the heating material 7, and the other layer contains the medicinal powder 4 (such as mugwort, motherwort, glucosamine, chondroitin, etc.). In use, the release paper 8 is peeled off using the first easy-tear strip 9. The perforated breathable adhesive-coated PE film 2 is aligned with the area requiring heat treatment and attached to the outside of clothing, avoiding direct skin contact. Then, the non-breathable release paper 11 is peeled off using the third easy-tear strip 13. Outside air can pass through the breathable release paper 10 and the non-woven breathable membrane 5 into the heating material storage cavity 6, causing oxygen in the air to react with the iron powder in the heating material 7. Since the iron is oxidized to ferric oxide (such as ferric oxide), this chemical reaction is exothermic, thus producing heat. The heat generated by the heating material 7 is absorbed by the activated carbon in the air, creating a favorable environment for the oxidation reaction of the iron powder. Moisture acts as a catalyst, accelerating the oxidation reaction of the iron powder and making the heat patch heat up faster. By peeling off the breathable release paper 10 through the second easy-tear strip 12, more air can enter the heating material storage cavity 6 to control the heating temperature within a certain range. The heat generated by the heating material 7 is transferred to the drug storage cavity 3 through the membrane-covered airtight cloth 1. The effective ingredients in the drug powder 4 are volatilized under the heating of the heating material 7, and pass through the fabric to get close to the skin and then directly to the affected area to exert pharmacological or nutritional effects. The drug powder 4 is isolated from the heating material 7 and kept dry, so it can be effectively stored for several years without the problem of the drug powder 4 of a single-layer heat patch becoming damp and ineffective.

[0032] 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 process, method, article, or apparatus.

[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-layered warm patch comprising a film-coated airproof cloth (1), characterized in that: The film impermeable cloth (1) is connected with the punched air-permeable PE film (2) on the top, the drug storage cavity (3) is formed between the film impermeable cloth (1) and the punched air-permeable PE film (2), the drug powder (4) is arranged in the drug storage cavity (3), the non-woven air-permeable film (5) is connected with the film impermeable cloth (1) on the bottom, the heating material storage cavity (6) is formed between the film impermeable cloth (1) and the non-woven air-permeable film (5), and the heating material (7) is arranged in the heating material storage cavity (6).

2. A dual layer heat pack according to claim 1, wherein: The edge positions between the film impermeable cloth (1), the punched air-permeable PE film (2) and the non-woven air-permeable film (5) are connected through hot pressing.

3. A dual layer heat pack as claimed in claim 1, wherein: The punched air-permeable PE film (2) is connected with the anti-sticking release paper (8) on the top, and the edge position of the anti-sticking release paper (8) is provided with the first easy-tear strip (9).

4. The dual layer heat pack of claim 1, wherein: The non-woven air-permeable film (5) is connected with the air-permeable release paper (10) on the bottom, and the bottom of the air-permeable release paper (10) is connected with the air-impermeable release paper (11).

5. A dual layer heat pack according to claim 4, wherein: The non-woven air-permeable film (5) and the air-permeable release paper (10) and the air-permeable release paper (10) and the air-impermeable release paper (11) are adhered through coating glue.

6. A dual layer heat pack as claimed in claim 4, wherein: The edge positions of the air-permeable release paper (10) and the air-impermeable release paper (11) are respectively provided with the second easy-tear strip (12) and the third easy-tear strip (13).

7. A dual layer heat pack as claimed in claim 4, wherein: The air-permeable release paper (10) is provided with the air-permeable holes (14) which are uniformly distributed.

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