A low-allergy nonwoven tape

Abstract

The utility model relates to non - woven paste technical field discloses a low allergic non - woven paste, including base material layer, the bottom of base material layer is provided with waterproof and breathable assembly for preventing water vapor from entering, the bottom fixedly connected with antibacterial layer of waterproof and breathable assembly, the bottom fixedly connected with absorption pad of antibacterial layer, the bottom fixedly connected with pressure sensitive adhesive ring of absorption pad, the bottom of pressure sensitive adhesive ring is bonded with release layer, the right side fixedly connected with patch of release layer, waterproof and breathable assembly includes waterproof layer, the bottom of waterproof layer is fixedly connected in the bottom of base material layer. In the utility model, will not happen chemical reaction with wound secretion or surrounding material under different temperature and humidity environment, reduce the allergic risk from the root, and the user peels off the release layer easily, makes non - woven paste can conveniently stick in the required part, improves the convenience and comfort of use as a whole.

Description

Technical Field

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

[0002] Non-woven fabric adhesive tapes are adhesive products made primarily of non-woven fabric. Non-woven fabric, also known as non-woven cloth, is composed of oriented or randomly arranged fibers and possesses characteristics such as moisture resistance, breathability, flexibility, lightweight, non-flammability, easy decomposition, and non-toxicity and non-irritation. Non-woven fabric adhesive tapes utilize these properties and are widely used in various fields. In the medical field, non-woven fabric adhesive tapes are often used as medical tapes; they are soft and comfortable, have low skin irritation, and adhere firmly to the skin for fixing wound dressings. In daily life, non-woven fabric adhesive tapes can be used for home decoration, such as making wall stickers and furniture stickers. They can be easily pasted onto various surfaces, adding aesthetic appeal to the home environment, and are easy to replace without damaging surfaces. Furthermore, non-woven fabric adhesive tapes also play an important role in advertising and industrial manufacturing, such as as advertising stickers and product labels, offering advantages such as low cost, strong adhesion, and high customizability.

[0003] However, some existing non-woven fabric patches can easily cause allergic reactions when in contact with the skin. Furthermore, non-woven fabric patches are not very convenient to use, as they are difficult to peel off and apply. This not only wastes time but also affects their protective effect on wounds or skin, causing great inconvenience to users. Therefore, a hypoallergenic non-woven fabric patch is proposed to address these shortcomings. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a hypoallergenic non-woven fabric patch, which aims to improve the problem that some non-woven fabric patches in the prior art are prone to causing allergies and are not easy to peel and stick.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hypoallergenic nonwoven fabric patch includes a substrate layer, a waterproof and breathable component for preventing moisture ingress is disposed at the bottom of the substrate layer, an antibacterial layer is fixedly connected to the bottom of the waterproof and breathable component, an absorbent pad is fixedly connected to the bottom of the antibacterial layer, a pressure-sensitive adhesive ring is fixedly connected to the bottom of the absorbent pad, a release layer is bonded to the bottom of the pressure-sensitive adhesive ring, and a patch is fixedly connected to the right side of the release layer.

[0007] As a further description of the above technical solution:

[0008] The waterproof and breathable component includes a waterproof layer, the top of which is fixedly connected to the bottom of the substrate layer, and a breathable layer is fixedly connected to the bottom of the waterproof layer.

[0009] As a further description of the above technical solution:

[0010] The substrate layer is made of polypropylene fiber, and the release layer is made of fluorine release film.

[0011] As a further description of the above technical solution:

[0012] The waterproof layer is made of polyurethane.

[0013] As a further description of the above technical solution:

[0014] The breathable layer is made of polypropylene microporous membrane material;

[0015] As a further description of the above technical solution:

[0016] The antibacterial layer is made of chitin fiber.

[0017] As a further description of the above technical solution:

[0018] The absorbent pad is made of alginate fiber.

[0019] As a further description of the above technical solution:

[0020] The pressure-sensitive adhesive ring is made of acrylic pressure-sensitive adhesive.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this invention, the substrate layer of the non-woven patch is made of polypropylene fiber, which has good chemical stability and will not react chemically with wound secretions or surrounding substances under different temperature and humidity environments, thus reducing the risk of allergies at the source. The pressure-sensitive adhesive ring is made of acrylic pressure-sensitive adhesive, which has good weather resistance and chemical stability and will not react with wound secretions or skin surface substances, ensuring safety in use. The release layer is made of fluorine release film, which effectively protects the pressure-sensitive adhesive and prevents it from sticking to other objects when not in use. A patch is provided on the right side of the release layer, making it easy for users to peel off the release layer, allowing the non-woven patch to be accurately and conveniently applied to the required area. Overall, this improves the convenience and comfort of use and enhances performance.

[0023] 2. In this invention, the polyurethane material of the waterproof layer forms a dense barrier due to its highly cross-linked molecular structure, effectively preventing water vapor penetration. The polypropylene microporous membrane material of the breathable layer has a large number of uniformly distributed micropores, allowing water vapor molecules to pass freely while blocking liquid water. This unique waterproof and breathable structure keeps the skin surface dry, avoiding skin maceration and infection caused by water vapor accumulation, while also preventing external water vapor from affecting the wound, creating a favorable environment for wound healing. At the same time, the chitin fiber material of the antibacterial layer can inhibit the growth and reproduction of common bacteria such as Staphylococcus aureus and Escherichia coli, and the alginate fiber material of the absorbent pad can quickly absorb wound secretions and form a gel, locking in liquid, keeping the area around the wound dry and creating a moist healing environment, further protecting the wound from infection and other adverse effects. Attached Figure Description

[0024] Figure 1 This is a three-dimensional view of a hypoallergenic nonwoven fabric patch proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the release layer structure of a hypoallergenic nonwoven fabric patch proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0027] Legend:

[0028] 1. Substrate layer; 2. Waterproof layer; 3. Breathable layer; 4. Antibacterial layer; 5. Absorbent pad; 6. Pressure-sensitive adhesive ring; 7. Release layer; 8. Patch. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1 to 3This utility model provides an embodiment of a hypoallergenic nonwoven patch, comprising a substrate layer 1 made of polypropylene fiber. Polypropylene fiber has good chemical stability and can maintain its properties under complex environmental conditions, such as different temperatures and humidity levels, without reacting chemically with wound secretions or substances in the surrounding environment, thus avoiding adverse effects on the wound. A waterproof and breathable component for preventing moisture ingress is provided at the bottom of the substrate layer 1. The waterproof and breathable component includes a waterproof layer 2, the top of which is fixedly connected to the bottom of the substrate layer 1. The waterproof layer 2 is made of polyurethane, whose molecular structure has high cross-linking properties. This cross-linking structure forms a dense barrier, effectively preventing moisture penetration. A breathable layer 3 is fixedly connected to the bottom of the waterproof layer 2. The breathable layer 3 is made of polypropylene microporous membrane material. The polypropylene microporous membrane contains a large number of uniformly distributed micropores, allowing water vapor molecules to pass freely while liquid water cannot penetrate, effectively maintaining the dryness of the skin surface and avoiding skin maceration and infection caused by moisture accumulation.

[0031] Reference Figures 1 to 3 The bottom of the waterproof and breathable component is fixedly connected to an antibacterial layer 4, which is made of chitosan fiber. The amino and other active groups in chitosan fiber can interact with the negatively charged components on the surface of bacteria, disrupting the bacterial cell wall structure and thus inhibiting bacterial growth and reproduction. It has significant antibacterial effects against various bacteria that commonly cause wound infections, such as Staphylococcus aureus and Escherichia coli. The bottom of the antibacterial layer 4 is fixedly connected to an absorbent pad 5, which is made of alginate fiber. The molecular structure of alginate fiber contains abundant hydrophilic groups such as carboxyl groups, giving it extremely strong water absorption. When the wound secretes fluid, the alginate fiber can quickly absorb a large amount of secretion. During the absorption process, the alginate fiber undergoes ion exchange with sodium ions in the fluid, forming a moist gel-like substance. This gel not only effectively locks in the fluid, preventing it from seeping back to the wound surface and keeping the area around the wound dry, but also creates a moist healing environment for the wound.

[0032] Reference Figures 1 to 3 The bottom of the absorbent pad 5 is fixedly connected to a pressure-sensitive adhesive ring 6. The pressure-sensitive adhesive ring 6 is made of acrylic pressure-sensitive adhesive, which also has good weather resistance and chemical stability. It will not react chemically with wound secretions or substances on the skin surface, ensuring the safety and reliability of use. A release layer 7 is adhered to the bottom of the pressure-sensitive adhesive ring 6. The release layer 7 is made of fluoropolymer release film. The function of the fluoropolymer release film is to protect the pressure-sensitive adhesive and prevent it from sticking to other objects when not in use. A patch 8 is fixedly connected to the right side of the release layer 7. The patch 8 is designed here to facilitate the peeling of the release layer 7.

[0033] Working Principle: The base layer 1 of this hypoallergenic nonwoven patch is made of chemically stable polypropylene fiber, which remains stable under different temperature and humidity conditions, preventing reactions with wound secretions or surrounding substances that could affect the wound. The waterproof layer 2 is made of polyurethane, whose cross-linked structure prevents water vapor penetration. The breathable layer 3 is made of polypropylene microporous membrane, with numerous tiny pores allowing water vapor to pass through while preventing liquid water, keeping the skin dry and preventing problems caused by moisture buildup. The antibacterial layer 4 is made of chitin fiber, whose amino and other active groups can interact with the negatively charged components of bacteria, inhibiting the growth and reproduction of common bacteria such as Staphylococcus aureus and Escherichia coli. The absorbent pad 5 is made of alginate fiber, containing abundant hydrophilic groups, which can quickly absorb wound secretions and form a gel by ion exchange with sodium ions, locking in liquid, keeping the wound dry, and creating a moist healing environment. The pressure-sensitive adhesive ring 6 is made of acrylic pressure-sensitive adhesive, which has good weather resistance and chemical stability, ensuring safe and reliable use. The release layer 7 is made of fluoropolymer release film, which protects the pressure-sensitive adhesive, and the patch 8 on its right side facilitates the peeling of the release layer 7.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 hypoallergenic nonwoven fabric patch, comprising a substrate layer (1), characterized in that: The bottom of the substrate layer (1) is provided with a waterproof and breathable component for preventing moisture from entering. An antibacterial layer (4) is fixedly connected to the bottom of the waterproof and breathable component. An absorbent pad (5) is fixedly connected to the bottom of the antibacterial layer (4). A pressure-sensitive adhesive ring (6) is fixedly connected to the bottom of the absorbent pad (5). A release layer (7) is bonded to the bottom of the pressure-sensitive adhesive ring (6). A patch (8) is fixedly connected to the right side of the release layer (7).

2. The hypoallergenic nonwoven fabric patch according to claim 1, characterized in that: The waterproof and breathable component includes a waterproof layer (2), the top of which is fixedly connected to the bottom of the substrate layer (1), and a breathable layer (3) is fixedly connected to the bottom of the waterproof layer (2).

3. The hypoallergenic nonwoven fabric patch according to claim 1, characterized in that: The substrate layer (1) is made of polypropylene fiber, and the release layer (7) is made of fluorine release film.

4. The hypoallergenic nonwoven fabric patch according to claim 2, characterized in that: The waterproof layer (2) is made of polyurethane.

5. The hypoallergenic nonwoven fabric patch according to claim 2, characterized in that: The breathable layer (3) is made of polypropylene microporous membrane material.

6. The hypoallergenic nonwoven fabric patch according to claim 1, characterized in that: The antibacterial layer (4) is made of chitin fiber.

7. The hypoallergenic nonwoven fabric patch according to claim 1, characterized in that: The absorbent pad (5) is made of alginate fiber.

8. The hypoallergenic nonwoven fabric patch according to claim 1, characterized in that: The pressure-sensitive adhesive ring (6) is made of acrylic pressure-sensitive adhesive.

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