Antibacterial printed nonwoven fabric

Abstract

The utility model relates to non - woven fabric manufacturing technical field, concretely is a kind of bacteriostatic printed non - woven fabric, including printed decoration, the bottom of printed decoration is provided with isolation layer, the bottom of isolation layer is provided with composite layer, the composite layer includes first antibacterial layer, the top of first antibacterial layer is connected with isolation layer, the bottom of first antibacterial layer is provided with filter membrane, the bottom of filter membrane is provided with second antibacterial layer.This scheme can be decorated to the surface of isolation layer by printed decoration, isolation layer can prevent isolation printed decoration and composite layer mutual influence, first antibacterial layer can quickly kill the bacteria contacted from outside, filter membrane can effectively intercept the tiny particle contaminant in air, second antibacterial layer carries out second antibacterial to outside bacteria, make composite layer have the ability of multiple bacteriostatic multiple pollutant interception, and further solve the problem that non - woven fabric is difficult to carry out multiple antibacterial and intercept multiple pollutant.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric manufacturing technology, specifically to an antibacterial printed nonwoven fabric. Background Technology

[0002] Nonwoven fabric is a type of fabric formed without spinning or weaving. It is composed of oriented or random fibers and is a new generation of environmentally friendly material. It has the characteristics of being moisture-proof, breathable, flexible, lightweight, easily degradable, non-toxic and non-irritating, rich in color, inexpensive, and recyclable. Nonwoven fabric has a wide range of applications, mainly in medical protective clothing, home decoration, industrial fabrics, and agriculture.

[0003] In the field of medical protection, non-woven fabrics are used as the outer layer of auxiliary materials for wound care. However, the functional development of existing non-woven fabric products generally suffers from the problem of being too singular. On the one hand, most antibacterial non-woven fabrics only achieve basic antibacterial effects through a single antibacterial layer, resulting in an imperfect antibacterial system. Moreover, a single antibacterial layer is easily affected by the external environment and becomes ineffective. On the other hand, although a single antibacterial layer can inhibit specific bacteria, it lacks the ability to intercept multiple pollutants in complex scenarios, which greatly reduces the protective effect in multi-polluted environments. Therefore, it is necessary to develop an antibacterial printed non-woven fabric that can perform multiple antibacterial functions and intercept multiple pollutants. Utility Model Content

[0004] The purpose of this invention is to provide an antibacterial printed nonwoven fabric to solve the problem mentioned in the background art that nonwoven fabrics are difficult to perform multiple antibacterial functions and intercept multiple pollutants.

[0005] To achieve the above objectives, this utility model provides the following technical solution, including a printed decoration, wherein an isolation layer is provided at the bottom of the printed decoration, a composite layer is provided at the bottom of the isolation layer, the composite layer includes a first antibacterial layer, the top of the first antibacterial layer is connected to the isolation layer, a filter membrane is provided at the bottom of the first antibacterial layer, a second antibacterial layer is provided at the bottom of the filter membrane, a reinforcing layer is provided at the bottom of the second antibacterial layer, and a fiber layer is provided at the bottom of the reinforcing layer.

[0006] Preferably, the material of the isolation layer is an aqueous acrylic resin.

[0007] Preferably, the filter membrane is made of polytetrafluoroethylene microporous membrane.

[0008] Preferably, the material of the first antibacterial layer is a quaternary ammonium salt antibacterial coating, and the material of the second antibacterial layer is a chitosan coating.

[0009] Preferably, the reinforcing layer is made of polyester mesh film, and the fiber layer is made of viscose fiber.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This solution allows for the decoration of the isolation layer's surface through printed decorations. The isolation layer prevents the printed decorations and the composite layer from affecting each other. The first antibacterial layer can quickly kill bacteria that come into contact with the outside world. The filter membrane can effectively intercept tiny particulate pollutants in the air. The second antibacterial layer provides a second round of antibacterial treatment for external bacteria, enabling the composite layer to have the ability to inhibit multiple bacteria and intercept multiple pollutants. This solves the problem that non-woven fabrics are difficult to use for multiple antibacterial treatments and intercept multiple pollutants. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram showing the main structure assembly of this utility model; Figure 3 This is a diagram of a single structural combination of the present invention.

[0012] In the diagram: 1. Printed decoration; 2. Isolation layer; 3. Composite layer; 301. First antibacterial layer; 302. Filter membrane; 303. Second antibacterial layer; 4. Reinforcing layer; 5. Fiber layer. Detailed Implementation

[0013] 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.

[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] Example 1: Please see Figure 1-3This utility model provides a technical solution: an antibacterial printed nonwoven fabric, including a printed decoration 1, an isolation layer 2 at the bottom of the printed decoration 1, a composite layer 3 at the bottom of the isolation layer 2, the composite layer 3 including a first antibacterial layer 301, the top of the first antibacterial layer 301 being connected to the isolation layer 2, a filter membrane 302 at the bottom of the first antibacterial layer 301, a second antibacterial layer 303 at the bottom of the filter membrane 302, a reinforcing layer 4 at the bottom of the second antibacterial layer 303, and a fiber layer 5 at the bottom of the reinforcing layer 4.

[0016] Analysis of the above content: When in use, the printed decoration 1 on the outer surface of the isolation layer 2 can reduce the patient's resistance to the wound dressing, and the isolation layer 2 can prevent the printed decoration 1 and the composite layer 3 from affecting each other and isolate them.

[0017] As the innermost layer of the nonwoven fabric, the fiber layer 5 is directly attached to the middle absorbent layer of the wound care dressing (such as the absorbent cotton layer) or the skin around the wound. The reinforcing layer 4 enhances the overall tensile and tear resistance of the nonwoven fabric. During wound care operations (such as changing dressings or adjusting the attachment position), the nonwoven fabric may be stretched. This layer can effectively prevent the nonwoven fabric from breaking and ensure the integrity of the structure of each functional layer.

[0018] The first antibacterial layer 301 is directly connected to the isolation layer 2, serving as the first antibacterial barrier of the composite layer 3. It can quickly kill bacteria that come into contact with the outside world. At the same time, during the antibacterial process, the filter membrane 302 can effectively intercept tiny particulate pollutants such as dust, droplets, and hair in the air. Finally, the second antibacterial layer 303 serves as the second antibacterial barrier of the composite layer 3, providing a second round of antibacterial protection against external bacteria. This ensures that the skin around the wound is in a mild antibacterial environment, which promotes wound healing to a certain extent.

[0019] The first antibacterial layer 301 focuses on quickly responding to a large number of microorganisms that come into contact with the outside world, while the second antibacterial layer 303 focuses on long-term inhibition of residual microorganisms and fungi. The combination of the two can cover common types of bacteria and fungi in wound care, solving the problem of narrow antibacterial spectrum and easy failure of traditional single antibacterial layers.

[0020] The above description enables composite layer 3 to have the ability to inhibit multiple bacteria and intercept multiple pollutants, solving the problem that non-woven fabrics are difficult to use for multiple antibacterial and multiple pollutant interception. Furthermore, the functions of isolation layer 2, reinforcing layer 4, and fiber layer 5 complement each other, achieving a comprehensive effect of "protection upgrade, experience optimization, and structural stability".

[0021] Example 2: Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the material of the isolation layer 2 is water-based acrylic resin.

[0022] Analysis of the above content: Water-based acrylic resin uses water as a solvent. After coating, it is dried at low temperature to form a film. The film is transparent, dense and soft, with no toxic leaching. It can effectively block the ink in the printed decoration 1 from penetrating with the antibacterial components in the first antibacterial layer 301.

[0023] Example 3: Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the material of the filter membrane 302 is a polytetrafluoroethylene microporous membrane.

[0024] Analysis of the above content: The pore size uniformity of polytetrafluoroethylene microporous membranes far exceeds that of traditional filter materials, which can accurately intercept target pollutants. Moreover, the high porosity ensures that fluids (gas / liquid) can pass through the membrane pores quickly, avoiding the contradiction that high-precision filtration is inevitably accompanied by high flow resistance, and ensuring air permeability.

[0025] Example 4: Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the material of the first antibacterial layer 301 is a quaternary ammonium salt antibacterial coating, and the material of the second antibacterial layer 304 is a chitosan coating.

[0026] Analysis of the above content: Quaternary ammonium salt antibacterial agents (such as polyhexamethylene biguanide hydrochloride) are a type of cationic surfactant. The hydrophilic quaternary ammonium cations and hydrophobic alkyl chains contained in their molecular structure endow them with highly efficient antibacterial, safe and adaptable, stable and durable properties. Through the cationic adsorption-cell membrane destruction mechanism, they can instantly kill Gram-positive and Gram-negative bacteria upon contact, making them contact-type antibacterial materials.

[0027] Chitosan, as a natural cationic polysaccharide, not only has a broad-spectrum inhibitory effect on bacteria (such as Pseudomonas aeruginosa) and fungi (such as Candida albicans, which easily causes fungal infections in wounds), but also promotes fibroblast proliferation, reduces inflammatory response, and assists wound healing. Located in the inner layer of composite layer 3, it can intercept trace microorganisms that penetrate the filter membrane 302 and adsorption layer 303, forming a secondary antibacterial barrier. On the other hand, the biocompatibility of chitosan can avoid the potential risks of traditional chemical antibacterial agents, making it a slow-release antibacterial material.

[0028] Example 5: Please see Figure 1-3 Based on Embodiment 1, this utility model provides a technical solution: the reinforcing layer 4 is made of polyester mesh film, and the fiber layer 5 is made of viscose fiber.

[0029] Analysis of the above content: The material of fiber layer 5 is viscose fiber. Viscose fiber has the characteristics of breathability, high moisture absorption, and skin-friendly softness. It can absorb a small amount of sweat that seeps to the outer layer and keep the skin contact area dry. At the same time, its soft texture can reduce friction with the skin and avoid irritation to the sensitive skin around the wound due to the movement of the dressing, which meets the needs of gentle and close-fitting wound care.

[0030] The reinforcing layer 4 uses polyester mesh film as its material. The polyester mesh film adopts a mesh structure design, which has strong tensile and tear resistance while being lightweight. At the same time, the mesh design directly forms a through channel, allowing air, water vapor or liquid to flow freely through the openings, resulting in high overall breathability and ensuring that the non-woven fabric is breathable.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] 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. An antibacterial printed nonwoven fabric, characterized in that, include: Printed decoration (1), the bottom of the printed decoration (1) is provided with an isolation layer (2), the bottom of the isolation layer (2) is provided with a composite layer (3), the composite layer (3) includes a first antibacterial layer (301), the top of the first antibacterial layer (301) is connected to the isolation layer (2), the bottom of the first antibacterial layer (301) is provided with a filter membrane (302), the bottom of the filter membrane (302) is provided with a second antibacterial layer (303), the bottom of the second antibacterial layer (303) is provided with a reinforcing layer (4), and the bottom of the reinforcing layer (4) is provided with a fiber layer (5).

2. The antibacterial printed nonwoven fabric according to claim 1, characterized in that: The material of the isolation layer (2) is water-based acrylic resin.

3. The antibacterial printed nonwoven fabric according to claim 1, characterized in that: The filter membrane (302) is made of polytetrafluoroethylene microporous membrane.

4. The antibacterial printed nonwoven fabric according to claim 1, characterized in that: The first antibacterial layer (301) is made of quaternary ammonium salt antibacterial coating, and the second antibacterial layer (303) is made of chitosan coating.

5. The antibacterial printed nonwoven fabric according to claim 1, characterized in that: The reinforcing layer (4) is made of polyester mesh film, and the fiber layer (5) is made of viscose fiber.

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