Antibacterial nonwoven fabric

Abstract

The utility model relates to the technical field of non - woven fabric, especially antibacterial non - woven fabric. Its solved long - term use or is abrasion, and the antibacterial coating of non - woven fabric surface can appear a large number of exfoliation, and its antibacterial agent is not firm, and the antibacterial effect is not lasting problem, the utility model discloses through setting up the antibacterial layer between non - woven fabric base layer and non - woven fabric surface layer, utilize the bacteriostatic granule and be wrapped by the capsule layer, and the lower surface contacts with non - woven fabric base layer surface, increased the connecting point between antibacterial layer and non - woven fabric base layer, improved the connecting stability between both, cooperate the upper part of bacteriostatic granule and pass through the cooperation hole and the skin layer contact simultaneously, can be received external force stretching or rubbing formula in non - woven fabric, effectively prevent antibacterial layer and base layer separation, guarantee the structural integrity of antibacterial non - woven fabric, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric technology, and in particular to an antibacterial nonwoven fabric. Background Technology

[0002] Nonwoven fabrics, as a type of non-woven material, have advantages such as simple production process, low cost, good breathability, and softness and comfort, and are widely used in daily life and industrial production. For example, in the medical and health field, nonwoven fabrics are often used to make surgical gowns, masks, dressings and other medical supplies; in household cleaning, they can be used to manufacture cleaning products such as rags and mop cloths; and in personal care, they are a common material for making the outer layer of products such as wet wipes and sanitary napkins.

[0003] Traditional nonwoven fabrics do not inherently possess antibacterial properties. To address the antibacterial issue in nonwoven fabrics, surface coatings, blending spinning, and finishing processes are typically employed. However, when using surface coatings for antibacterial treatment, significant amounts of the antibacterial coating tend to peel off due to prolonged use or wear, resulting in weak adhesion of the antibacterial agent and a short-lasting antibacterial effect.

[0004] Therefore, there is an urgent need for an antibacterial nonwoven fabric that can achieve strong adhesion of antibacterial agents to the surface of nonwoven fabrics, thereby further improving their antibacterial effect. Utility Model Content

[0005] Therefore, in response to the above problems, this utility model proposes an antibacterial nonwoven fabric. It solves the technical problems that, with prolonged use or wear, the antibacterial coating on the surface of the nonwoven fabric will peel off in large quantities, resulting in poor adhesion of the antibacterial agent and a short-lasting antibacterial effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: its structure includes a non-woven fabric base layer, a non-woven fabric surface layer disposed on the upper surface of the non-woven fabric base layer, an antibacterial layer disposed between the non-woven fabric base layer and the non-woven fabric surface layer, and a skin-friendly layer located on the upper surface of the non-woven fabric surface layer. The antibacterial layer includes antibacterial particles, a capsule layer for encapsulating the antibacterial particles, and fiber strips for connecting adjacent capsule layers.

[0007] Furthermore, the surface of the nonwoven fabric is provided with matching pores corresponding to the antibacterial particles.

[0008] Furthermore, the antibacterial particles are encapsulated by a capsule layer, with the lower surface in contact with the surface of the non-woven fabric base layer, and the upper part passing through the fitting holes to contact the skin-friendly layer.

[0009] Furthermore, the antibacterial particles use a material with silver-zinc composite nanoparticles embedded in a porous silica carrier as the core of the antibacterial particles.

[0010] Furthermore, the capsule layer is a polycaprolactone (PCL) capsule layer.

[0011] Furthermore, the surface of the fiber strip is coated with a small amount of adhesive antibacterial base.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0013] This invention features an antibacterial layer positioned between the nonwoven fabric base layer and the nonwoven fabric surface layer. Antibacterial particles are encapsulated within this layer, with their lower surfaces in contact with the nonwoven fabric base layer. This increases the connection points between the antibacterial layer and the nonwoven fabric base layer, improving the stability of their connection. Simultaneously, the upper part of the antibacterial particles passes through a fitting hole and contacts the skin-friendly layer. This effectively prevents the antibacterial layer from separating from the base layer when the nonwoven fabric is subjected to external stretching or friction, ensuring the structural integrity of the antibacterial nonwoven fabric and extending its service life.

[0014] By utilizing the synergistic effect of the nonwoven base layer, nonwoven surface layer, and antibacterial layer, the antibacterial properties of the nonwoven fabric can be optimized. Furthermore, the multiple protections of the capsule layer, fiber strip, and antibacterial particles prevent the shedding of antibacterial particle components and enhance the stability of its structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the antibacterial layer structure of this utility model;

[0018] In the diagram: Non-woven base layer-1, Non-woven surface layer-2, Antibacterial layer-3, Skin-friendly layer-4, Antibacterial particles-301, Encapsulation layer-302, Fiber strip-303, Fitting hole-201. Detailed Implementation

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to Figures 1-3 This embodiment provides an antibacterial nonwoven fabric. Its structure includes a nonwoven base layer 1, a nonwoven surface layer 2 disposed on the upper surface of the nonwoven base layer 1, an antibacterial layer 3 disposed between the nonwoven base layer 1 and the nonwoven surface layer 2, and a skin-friendly layer 4 located on the upper surface of the nonwoven surface layer 2. The antibacterial layer 3 includes antibacterial particles 301, a capsule layer 302 for encapsulating the antibacterial particles 301, and fiber strips 303 for connecting adjacent capsule layers 302.

[0021] The aforementioned capsule layer 302 is a polycaprolactone (PCL) capsule layer, which can also be replaced by a blend of PCL and polylactic acid (PLA) or other materials with the same properties.

[0022] The surface of the fiber strip 303 is coated with a small amount of adhesive antibacterial base.

[0023] The antibacterial particles 301 described above use silver-zinc composite nanoparticles embedded in a porous silica carrier as the core of the antibacterial particles. They can also be replaced by copper-titanium dioxide composite nanoparticles, zeolite-loaded silver ions, or other materials with the same properties.

[0024] The main structure of this application includes an antibacterial layer 3 disposed between the nonwoven fabric surface layer 2 and the nonwoven fabric base layer 1. The antibacterial layer 3 serves as the core functional layer and includes antibacterial particles 301, a capsule layer 302 encapsulating the antibacterial particles 301, and fiber strips 303 connecting adjacent capsule layers 302. This unique design can effectively inhibit bacterial growth and reproduction, giving the nonwoven fabric antibacterial properties. At the same time, the capsule layer 302 can protect the antibacterial particles 301, preventing them from failing due to external environmental influences during use. Meanwhile, the connecting effect of the fiber strips 303 enhances the overall stability of the antibacterial layer 3, preventing the capsule layer 302 and the antibacterial particles 301 from falling off, further ensuring the long-term effectiveness of the antibacterial properties.

[0025] Among them, by opening matching holes 201 on the surface of the nonwoven fabric surface layer 2, corresponding to the antibacterial particles 301, the matching holes 201 play a positioning role for the antibacterial particles 301, preventing the antibacterial particles 301 from shifting or aggregating during use, and ensuring the uniformity of the distribution of antibacterial particles 301 in the antibacterial layer 3.

[0026] The antibacterial particles 301 are encapsulated by the capsule layer 302, and the lower surface is in contact with the surface of the nonwoven base layer 1, which increases the connection points between the antibacterial layer and the nonwoven base layer 1 and improves the connection stability between the two. At the same time, the upper part of the antibacterial particles 301 passes through the mating hole 201 and contacts the skin-friendly layer 4. When the nonwoven fabric is subjected to external force stretching or friction, it can effectively prevent the antibacterial layer from separating from the base layer, ensuring the structural integrity of the antibacterial nonwoven fabric and extending its service life.

[0027] Specifically, it should be noted that after the antibacterial particles 301 and the encapsulation layer 302 are combined and wrapped, the upper part of the entire structure is convex, and this convex part passes through the mating hole 201 and is exposed on the surface of the nonwoven fabric surface layer 2. The lower part of the encapsulation layer 302 is connected to the upper surface of the nonwoven fabric base layer 1. Therefore, a portion of the encapsulation layer 302 is located between the nonwoven fabric surface layer 2 and the nonwoven fabric base layer 1, which is used to strengthen the connection between the encapsulation layer 302 and the surface of the nonwoven fabric base layer 1. At the same time, the encapsulation layer 302 is located on the nonwoven fabric surface layer 2. The part between the base layer 1 and the nonwoven fabric surface layer 2 is connected by the fiber strip 302, thereby strengthening the connection between the encapsulation layer 302 and the antibacterial particles 301. At the same time, the upper part passes through the mating hole 201 of the nonwoven fabric surface layer 2, and the connection between the nonwoven fabric surface layer 2 and the nonwoven fabric base layer 1 can strengthen the stability of the antibacterial layer 3. Furthermore, through the double reinforcement of the antibacterial particles 301, the stability of the antibacterial particles 301 can be further improved, preventing them from falling off.

[0028] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An antibacterial nonwoven fabric, comprising a nonwoven base layer (1), a nonwoven surface layer (2) disposed on the upper surface of the nonwoven base layer (1), an antibacterial layer (3) disposed between the nonwoven base layer (1) and the nonwoven surface layer (2), and a skin-friendly layer (4) located on the upper surface of the nonwoven surface layer (2), characterized in that, The antibacterial layer (3) includes antibacterial particles (301), a capsule layer (302) for encapsulating the antibacterial particles (301), and fiber strips (303) for connecting adjacent capsule layers (302).

2. The antibacterial nonwoven fabric according to claim 1, characterized by: The surface of the nonwoven fabric (2) is provided with matching holes (201) corresponding to the antibacterial particles (301).

3. The antibacterial nonwoven fabric according to claim 1, characterized by: The antibacterial particles (301) are wrapped by a capsule layer (302), and the lower surface is in contact with the surface of the non-woven base layer (1), while the upper part passes through the mating hole (201) and contacts the skin-friendly layer (4).

4. The antibacterial nonwoven fabric according to claim 1, characterized by: The antibacterial particles (301) use a material with silver-zinc composite nanoparticles embedded in a porous silica carrier as the core of the antibacterial particles.

5. The antibacterial nonwoven fabric according to claim 1, characterized by: The capsule layer (302) is a polycaprolactone (PCL) capsule layer.

6. The antibacterial nonwoven fabric according to claim 1, characterized by: The surface of the fiber strip (303) is coated with a small amount of adhesive antibacterial base.

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