A medicament patch for preventing powdery mildew of indoor green plants

Abstract

The utility model discloses a medicament patch for preventing and treating powdery mildew of indoor green plants, which comprises a medicament patch, wherein the medicament patch comprises an outer layer, a middle layer and an inner layer, and pressure-sensitive adhesive I is arranged on both sides of the middle layer, and the pressure-sensitive adhesive I is bonded with the outer layer and the inner layer; auxiliary components are arranged at both ends of the medicament patch; the outer layer, the middle layer, the inner layer and the pressure-sensitive adhesive I arranged on the medicament patch can directly deliver the sterilizing medicament to the inside of the plant, and the plant is not affected by passive regulation and control of environmental factors such as temperature and humidity, precise controlled release is realized, the rhizosphere environment is effectively prevented from being damaged, the risk of volatile components being released into the air is reduced, human health is ensured, the auxiliary components arranged on the medicament patch can be automatically adjusted according to the thickness of the stems or main branches of the plant, the pressure-sensitive adhesive bonding can enhance the attachment stability, prevent the medicament patch from falling off, ensure stable release and absorption of the medicament, improve the prevention and treatment effect, and the PDMS microneedle array arranged in the middle layer can gently pierce the plant epidermis when the medicament patch is attached.

Description

Technical Field

[0001] This utility model relates to the field of medicated patch technology, specifically, to a medicated patch for controlling powdery mildew in indoor plants. Background Technology

[0002] Patches for controlling powdery mildew on indoor plants use polymer carriers to load highly effective and low-toxicity fungicides. The slow release of the fungicide is achieved through diffusion or penetration mechanisms, which can maintain the effective concentration of the fungicide around the plant, achieving both prevention and treatment functions, while avoiding the secondary pollution caused by traditional spraying.

[0003] However, the prevention and control of diseases in indoor landscape plants generally uses granular or stick-shaped preparations, which are applied to the rhizosphere soil. The drug is activated and slowly released by watering. The release is passively regulated by environmental factors such as temperature and humidity, which cannot be precisely controlled and can easily damage the rhizosphere environment. Some products contain volatile components, which may be slowly released into the air in a confined space, posing a risk to human health. At the same time, the patches are mostly designed with fixed sizes and lack adjustable structures, making it difficult to adapt to plant stems or main branches of different thicknesses. This results in poor adhesion, easy detachment, and affects the stable release and absorption of the drug.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in related technologies, this utility model proposes a medicated patch for controlling powdery mildew in indoor green plants, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A pesticide patch for controlling powdery mildew in indoor plants includes a pesticide patch comprising an outer layer, a middle layer, and an inner layer. Pressure-sensitive adhesive is disposed on both sides of the middle layer and is bonded to the outer and inner layers. Auxiliary components are disposed at both ends of the pesticide patch.

[0007] Furthermore, in order to better adapt and fix the indoor green plants according to their size, the auxiliary components include a patch with pleated elastic bands at both ends, one end of the pleated elastic bands with multiple adhesive strips, and one side of the adhesive strips with pressure-sensitive adhesive.

[0008] Furthermore, in order to ensure that the drug is fully absorbed by the indoor plants, a PDMS microneedle array is provided on one side of the middle layer, and one side of the PDMS microneedle array is in contact with the inner layer and the pressure-sensitive adhesive.

[0009] Furthermore, in order to better fix the adhesive tape and improve the stability of the drug patch, multiple pressure-sensitive adhesives are provided on one side of the outer layer, and a protective film is bonded to one side of the pressure-sensitive adhesives and the pressure-sensitive adhesives.

[0010] Furthermore, the outer layer is a flexible waterproof and breathable membrane, the middle layer is a bactericidal agent, and the inner layer is a protective membrane.

[0011] The beneficial effects of this utility model are as follows: (1) By setting the outer, middle, and inner layers of the pesticide patch and the pressure-sensitive adhesive, the fungicide can be directly delivered to the plant interior without being affected by the passive regulation of environmental factors such as temperature and humidity, achieving precise controlled release, effectively avoiding damage to the rhizosphere environment, and reducing the risk of volatile components being released into the air, thus protecting human health. It is especially suitable for indoor environments with children, pets, and sensitive people. The auxiliary components set in the pesticide patch can be adaptively adjusted according to the thickness of the plant stem or main branch, and with the pressure-sensitive adhesive, the adhesion stability is enhanced, preventing detachment, ensuring stable release and absorption of the pesticide, and improving the control effect.

[0012] (2) By setting the PDMS microneedle array in the middle layer, the patch can gently pierce the plant epidermis when it is attached, forming a micron-level drug delivery channel, significantly reducing the drug penetration barrier, promoting the rapid and efficient entry of fungicides into the plant vascular system, thereby accelerating the efficacy of the drug, enhancing the ability to inhibit and kill powdery mildew fungi, and achieving a faster and more thorough control effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a medicated patch for preventing powdery mildew on indoor plants according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure viewed from below; Figure 3 This is a schematic diagram of the structure of a medicated patch for preventing powdery mildew on indoor plants, according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the auxiliary component structure of a pesticide patch for preventing powdery mildew on indoor plants, according to an embodiment of the present invention.

[0015] In the picture: 1. Drug patch; 101. Outer layer; 102. Middle layer; 103. Inner layer; 104. Pressure-sensitive adhesive one; 2. Auxiliary components; 201. Pleated elastic band; 202. Adhesive tape; 203. Pressure-sensitive adhesive two; 3. PDMS microneedle array; 4. Pressure-sensitive adhesive three; 5. Protective film one. Detailed Implementation

[0016] 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.

[0017] Example 1: like Figures 1-3 As shown, according to an embodiment of the present invention, a pesticide patch for controlling powdery mildew in indoor green plants includes a pesticide patch 1. The pesticide is directly absorbed through the stem and enters the vascular system, with a utilization rate of over 90%. This avoids soil adsorption and degradation and drift loss from foliar spraying. The pesticide is completely encapsulated inside the patch, with no volatilization or drift, and does not pollute indoor air. It is particularly suitable for indoor environments with children, pets, and sensitive individuals. The medicated patch 1 includes an outer layer 101, a middle layer 102, and an inner layer 103. The outer layer 101 is a flexible, waterproof, and breathable membrane used to prevent the drug from evaporating and escaping. The middle layer 102 contains a bactericide that is used for bidirectional conduction through the phloem to achieve systematic distribution throughout the plant. When powdery mildew infects the plant, the drug can quickly activate the antibacterial mechanism, thereby achieving stable control for several months. The inner layer 103 is a second protective film used for protection. It can be removed and attached to the plant stem when in use. Pressure-sensitive adhesive 104 is provided on both sides of the middle layer 102. The pressure-sensitive adhesive 104 is bonded to the outer layer 101 and the inner layer 103. One side of the middle layer 102 is provided with a PDMS microneedle array 3, which is used to assist in piercing the main stem or main branch of the plant and enhance penetration. One side of the PDMS microneedle array 3 is in contact with one side of the inner layer 103 and the pressure-sensitive adhesive 104. The formulation of medicated patch 1 includes the following two parts: 1. Active ingredients: The main active ingredients are a combination of difenoconazole and azoxystrobin, both of which have high efficiency, low toxicity and excellent systemic conduction properties.

[0018] 2. Sustained-release matrix and colloidal system: Medical-grade hot melt pressure-sensitive adhesive (HMPSA) is used as the colloidal matrix, which gives the system good flexibility and continuous adhesion; supplemented by a hydrogel sustained-release matrix constructed from carboxymethyl cellulose (CMC) and glycerol, which has excellent moisturizing ability and drug controlled release performance.

[0019] Preparation method of medicated patch 1: 1. Melt Adhesive Mixing: Heat the base materials such as hot melt pressure-sensitive adhesive (represented by SIS), tackifying resin, and softener (such as white oil) to a molten state, and stir until a homogeneous colloid is formed.

[0020] 2. Drug mixing: After the colloidal temperature drops to a range where the drug can be safely incorporated (to avoid thermal degradation of the drug), slowly add the active ingredient (such as difenoconazole·pyraclostrobin), humectant and other adjuvants, and continue stirring until the mixture is uniform. Then, bring the PDMS microneedle array 3 into contact with the mixed bactericidal agent.

[0021] 3. Coating and molding: The above-mentioned medicated adhesive mixture is applied evenly to the backing material layer traveling at a constant speed through a precision coating machine mold to set the thickness and width.

[0022] 4. Lining and Cooling: Immediately cover and release the liner and press it together to tightly bond the three-layer structure. The cooling process is then used to achieve the desired shape.

[0023] 5. Slitting and Packaging: Cut the formed roll into individual adhesive units according to the design specifications and seal them in light-proof packaging.

[0024] Example 2: like Figures 1-2 , Figure 4 As shown, according to an embodiment of the present invention, an agent patch for preventing powdery mildew in indoor green plants is provided at both ends of the agent patch 1. The auxiliary component 2 includes a pleated elastic band 201 at both ends of the agent patch 1 for adaptive adjustment according to the size of the plant trunk or main branch. Two adhesive strips 202 are provided at one end of the pleated elastic band 201 for fixing the agent patch 1. Pressure-sensitive adhesive 203 is provided on one side of the adhesive strip 202 for better fixation with the agent patch 1. Four pressure-sensitive adhesives 3 4 are provided on one side of the outer layer 101 to better bond with pressure-sensitive adhesive 2 203 and improve the stability of the drug patch 1 when it is fixed. A protective film 5 is bonded to one side of the pressure-sensitive adhesives 3 4 and the pressure-sensitive adhesive 2 203. There are two protective films 5 on the pressure-sensitive adhesives 3 4. They can be partially peeled off according to the use to prevent dust or impurities from adhering to the pressure-sensitive adhesives 3 4. The protective film 5 and the protective film 2 can be replaced with silicone paper or plastic film in actual use to provide protection. The pleated elastic band 201 and PDMS microneedle array 3 are existing technologies and will not be described in detail. The specific model and specifications need to be selected and determined according to the actual specifications of the device.

[0025] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0026] In summary, with the help of the above-mentioned technical solution of this utility model, when using it, first select the appropriate size of the medicine patch 1 according to the size of the stem or main branch of the indoor green plant. The operator holds the medicine patch 1 and peels off the protective film 2 on the inner layer 103, exposing the fungicide and PDMS microneedle array 3 in the middle layer 102. The medicine patch 1 is then attached to the surface of the plant epidermis. Under pressure, the PDMS microneedle array 3 penetrates into the shallow tissue of the plant epidermis, forming microchannels to promote the penetration of the fungicide into the plant. The outer layer 101, as a flexible waterproof and breathable membrane, effectively prevents the volatilization of the medicine and allows gas exchange, maintaining the stability of the efficacy. During the application process, the pleated elastic bands 201 at both ends of the medicine patch 1 can undergo elastic deformation according to the thickness of the plant stem and adapt to the fit. After the medicine patch 1 is wrapped around the stem, the adhesive strip 202 at the end of the pleated elastic band 201 is bonded and fixed to the pressure-sensitive adhesive 3 4 on the outer layer 101 by the pressure-sensitive adhesive 203, thus achieving a closed-loop fastening. Before use, the pressure-sensitive adhesive 3 4 is covered and protected by the protective film 5. When using, the protective film 5 is removed as needed to keep the adhesive clean. The fungicide in the middle layer 102 is mainly composed of difenoconazole and azoxystrobin. It achieves continuous controlled release through medical-grade hot melt pressure-sensitive adhesive and hydrogel slow-release matrix. After entering the phloem of the plant through the channels opened by microneedles, the fungicide is conducted bidirectionally and forms a systemic distribution in the plant. When powdery mildew infects, the fungicide can activate the plant's own defense mechanism and inhibit mycelial growth, achieving long-term control effect.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medicated patch for controlling powdery mildew in indoor plants, comprising a medicated patch (1), characterized in that, The medicated patch (1) includes an outer layer (101), a middle layer (102), and an inner layer (103). Pressure-sensitive adhesive (104) is provided on both sides of the middle layer (102). The pressure-sensitive adhesive (104) is bonded to the outer layer (101) and the inner layer (103). Auxiliary components (2) are provided at both ends of the medicated patch (1).

2. The medicated patch for controlling powdery mildew in indoor plants according to claim 1, characterized in that, The auxiliary component (2) includes a medicated patch (1) with pleated elastic bands (201) at both ends, a plurality of adhesive strips (202) at one end of the pleated elastic bands (201), and pressure-sensitive adhesive (203) on one side of the adhesive strips (202).

3. The medicated patch for controlling powdery mildew in indoor plants according to claim 1, characterized in that, A PDMS microneedle array (3) is provided on one side of the middle layer (102), and one side of the PDMS microneedle array (3) is in contact with one side of the inner layer (103) and the pressure-sensitive adhesive (104).

4. A medicated patch for controlling powdery mildew in indoor plants according to claim 3, characterized in that, Multiple pressure-sensitive adhesives (4) are provided on one side of the outer layer (101), and a protective film (5) is bonded to one side of the pressure-sensitive adhesives (4) and the pressure-sensitive adhesives (203).

5. A medicated patch for controlling powdery mildew in indoor plants according to claim 4, characterized in that, The outer layer (101) is a flexible waterproof and breathable membrane, the middle layer (102) is a bactericidal agent, and the inner layer (103) is a protective membrane.

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