Novel waterproof breathable sticker

Abstract

The utility model provides a novel waterproof breathable adhesive tape, which relates to the technical field of breathable adhesive tapes and comprises a super-hydrophobic non-woven fabric layer, a permanent adhesive layer arranged below the super-hydrophobic non-woven fabric layer, a PU (polyurethane) film layer arranged below the permanent adhesive layer, an isolation ring arranged below the PU film layer and a medical pressure-sensitive adhesive layer arranged in the isolation ring. The skin-friendly non-woven fabric layer is arranged below the medical pressure-sensitive adhesive layer, a plurality of evenly distributed small holes are formed in the skin-friendly non-woven fabric layer and penetrate through the skin-friendly non-woven fabric layer, viscose on the medical pressure-sensitive adhesive layer is not prone to adhering to the skin, skin irritation and anaphylaxis caused by residual viscose on the skin are avoided, no glue is left on the skin, and the skin-friendly non-woven fabric layer has the advantages that the skin-friendly non-woven fabric layer is not prone to damage. The use comfort is improved, and meanwhile, the skin health is also protected.

Description

Technical Field

[0001] This utility model relates to the field of breathable adhesive tape technology, and in particular to a novel waterproof and breathable adhesive tape. Background Technology

[0002] Breathable adhesive bandages are strip or sheet-like adhesive materials, available in elastic or non-elastic forms. They do not come into direct contact with the wound and are applied to intact skin, promoting rapid wound healing. The mud dressing, in particular, comes into contact with the wound, aiding in its healing process.

[0003] A waterproof and breathable adhesive tape with publication number CN218607059U is disclosed, specifically comprising a non-woven fabric, a pressure-sensitive adhesive layer disposed on the upper part of the non-woven fabric, a release paper disposed on the upper part of the pressure-sensitive adhesive layer, a seepage-proof ring fixedly connected to the lower outer surface of the release paper, a PU film disposed on the upper outer surface of the non-woven fabric, and a mud-like coating disposed on the upper outer surface of the PU film. The inner diameter of the seepage-proof ring is the same as the outer diameter of the mud-like coating, and the center of the seepage-proof ring is located at the same position as the center of the mud-like coating. This invention provides a waterproof and breathable adhesive tape in which the seepage-proof ring and the release paper are fixed together. When the breathable adhesive tape is not in use, the seepage-proof ring is fitted over the outer wall of the mud-like coating.

[0004] However, when using existing adhesive patches, the adhesive on the patches tends to stick to the skin. The adhesive in these patches usually contains chemicals such as formaldehyde and benzene, which may irritate the skin and cause discomfort such as redness, itching, and pain. Therefore, we propose a new type of waterproof and breathable adhesive patch. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a novel waterproof and breathable adhesive tape, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel waterproof and breathable adhesive patch, comprising a superhydrophobic nonwoven fabric layer, a permanent adhesive layer disposed below the superhydrophobic nonwoven fabric layer, a PU film layer disposed below the permanent adhesive layer, an isolation ring disposed below the PU film layer, a medical pressure-sensitive adhesive layer disposed within the isolation ring, and a skin-friendly nonwoven fabric layer disposed below the medical pressure-sensitive adhesive layer. The skin-friendly nonwoven fabric layer has a plurality of evenly distributed small holes, which penetrate the skin-friendly nonwoven fabric layer.

[0007] As a further technical solution of this utility model, the superhydrophobic nonwoven fabric layer forms a micro-nano-level rough structure on its surface through chemical vapor deposition, plasma treatment or other micro-nano structure forming technology, and is coated with a layer of low surface energy material.

[0008] As a further technical solution of this utility model, the PU film layer has a microporous structure.

[0009] As a further technical solution of this utility model, the skin-friendly non-woven fabric layer is covered with an anti-adhesive protective layer, which is an easily peelable silicone paper used to protect the medical pressure-sensitive adhesive layer from contamination.

[0010] As a further technical solution of this utility model, the medical pressure-sensitive adhesive layer is a low-sensitivity, high-adhesion medical-grade pressure-sensitive adhesive, suitable for skin contact.

[0011] As a further technical solution of this utility model, the skin-friendly non-woven fabric layer is made of soft, low-irritation fiber material, which has good breathability and moisture absorption.

[0012] As a further technical solution of this utility model, floating sheets are provided at the four corners of the upper side of the superhydrophobic nonwoven fabric layer. The floating sheets are transparent plastic sheets, and the floating sheets are semi-circular with straight edges fixedly connected to the superhydrophobic nonwoven fabric layer.

[0013] This utility model provides a novel waterproof and breathable adhesive patch, which has the following advantages compared with the prior art:

[0014] 1. This design presents a novel waterproof and breathable adhesive patch. The adhesive layer of the medical pressure-sensitive adhesive layer does not easily stick to the skin. This avoids skin irritation and allergic reactions caused by adhesive residue on the skin, improving comfort and protecting skin health.

[0015] This design presents a novel waterproof and breathable adhesive tape. The superhydrophobic nonwoven fabric layer utilizes chemical vapor deposition, plasma treatment, or other micro / nanostructure formation techniques to create a micro / nano-level rough structure on its surface, which is then coated with a low surface energy material, endowing the layer with extremely strong waterproof performance. This design effectively prevents water molecule penetration, protecting the inner structure and the adhesive area from water immersion. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a novel waterproof and breathable adhesive tape;

[0017] Figure 2 For a new type of waterproof and breathable adhesive tape Figure 1 Enlarged diagram of point A in the diagram;

[0018] Figure 3 A schematic diagram of the structure of the isolation ring and medical pressure-sensitive adhesive layer of a new type of waterproof and breathable adhesive patch;

[0019] Figure 4 This is a schematic diagram of the structure of a skin-friendly nonwoven fabric layer for a novel waterproof and breathable adhesive patch.

[0020] In the diagram: 1. Superhydrophobic nonwoven fabric layer; 2. Permanent adhesive layer; 3. PU film layer; 4. Isolation ring; 5. Medical pressure-sensitive adhesive layer; 6. Skin-friendly nonwoven fabric layer; 7. Float sheet; 8. Small hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a novel waterproof and breathable adhesive tape technical solution: A novel waterproof and breathable adhesive tape includes a superhydrophobic nonwoven fabric layer 1, a permanent adhesive layer 2 disposed below the superhydrophobic nonwoven fabric layer 1, a PU film layer 3 disposed below the permanent adhesive layer 2, an isolation ring 4 disposed below the PU film layer 3, a medical pressure-sensitive adhesive layer 5 disposed inside the isolation ring 4, a skin-friendly nonwoven fabric layer 6 disposed below the medical pressure-sensitive adhesive layer 5, and a plurality of evenly distributed small holes 8 are formed on the skin-friendly nonwoven fabric layer 6, the small holes 8 penetrating the skin-friendly nonwoven fabric layer 6.

[0023] By pressing the medical pressure-sensitive adhesive layer 5, the adhesive on the medical pressure-sensitive adhesive layer 5 enters and passes through the small holes 8 on the skin-friendly non-woven fabric layer 6. The skin-friendly non-woven fabric layer 6 comes into direct contact with the skin, and the adhesive inside the small holes 8 adheres to the skin. This avoids the adhesive on the medical pressure-sensitive adhesive layer 5 directly sticking to the skin. The adhesion force of the adhesive on the medical pressure-sensitive adhesive layer 5 to human skin is less than its adhesion force to the PU film layer 3. Therefore, when the adhesive is removed, the adhesive on the medical pressure-sensitive adhesive layer 5 is less likely to stick to the skin. This avoids skin irritation and allergic reactions caused by adhesive residue on the skin. The absence of adhesive residue on the skin improves user comfort and protects skin health.

[0024] The superhydrophobic nonwoven fabric layer 1 is formed with a micro-nano-scale rough structure on its surface through chemical vapor deposition, plasma treatment, or other micro-nano structure formation technologies, and coated with a low surface energy material. The PU film layer 3 has a microporous structure. A skin-friendly nonwoven fabric layer 6 is covered with an anti-adhesive protective layer, which is an easily peelable silicone paper used to protect the medical pressure-sensitive adhesive layer from contamination. The medical pressure-sensitive adhesive layer 5 is a low-sensitivity, high-adhesion medical-grade pressure-sensitive adhesive suitable for skin contact. The skin-friendly nonwoven fabric layer 6 is made of soft, low-irritant fiber material with good breathability and moisture absorption. Floats 7 are provided at the four corners of the upper side of the superhydrophobic nonwoven fabric layer 1. The floats 7 are transparent plastic sheets, semi-circular with straight edges fixed to the superhydrophobic nonwoven fabric layer 1. When removing the adhesive, the float 7 is pulled to remove it, making the operation more convenient and effective.

[0025] The working principle of this utility model is as follows:

[0026] By pressing the medical pressure-sensitive adhesive layer 5, the adhesive on the medical pressure-sensitive adhesive layer 5 enters and passes through the small holes 8 on the skin-friendly non-woven fabric layer 6. The skin-friendly non-woven fabric layer 6 comes into direct contact with the skin, and the adhesive in the small holes 8 adheres to the skin. This avoids the adhesive on the medical pressure-sensitive adhesive layer 5 from directly adhering to the skin. The adhesion force between the adhesive on the medical pressure-sensitive adhesive layer 5 and human skin is less than the adhesion force with the PU film layer 3.

[0027] The superhydrophobic nonwoven layer 1, through chemical vapor deposition, plasma treatment, or other micro / nano structure formation technologies, constructs a micro / nano-level rough structure on its surface and coats it with a low surface energy material, giving this layer extremely strong waterproof performance. This design effectively prevents water molecule penetration, protecting the inner structure and adhesive area from water immersion. The microporous structure of the PU film layer, while ensuring waterproofness, allows air circulation, improving the breathability of the adhesive. This helps reduce the stuffiness felt under prolonged skin contact, enhancing user comfort. The skin-friendly nonwoven layer is made of soft, low-irritant fiber materials with good breathability and moisture absorption, further promoting air circulation between the skin and the adhesive, reducing moisture buildup, and preventing skin discomfort.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A novel waterproof and breathable adhesive tape, characterized in that, The device includes a superhydrophobic nonwoven fabric layer (1), a permanent adhesive layer (2) below the superhydrophobic nonwoven fabric layer (1), a PU film layer (3) below the permanent adhesive layer (2), an isolation ring (4) below the PU film layer (3), a medical pressure-sensitive adhesive layer (5) inside the isolation ring (4), a skin-friendly nonwoven fabric layer (6) below the medical pressure-sensitive adhesive layer (5), and a number of evenly distributed small holes (8) on the skin-friendly nonwoven fabric layer (6), the small holes (8) penetrating the skin-friendly nonwoven fabric layer (6). The superhydrophobic nonwoven fabric layer (1) forms a micro-nano-scale rough structure on its surface by chemical vapor deposition or plasma treatment technology, and is coated with a layer of low surface energy material. The PU film (3) has a microporous structure; The skin-friendly nonwoven fabric layer (6) is covered with an anti-adhesive protective layer, which is an easily peelable silicone paper used to protect the medical pressure-sensitive adhesive layer from contamination.

2. The novel waterproof and breathable adhesive tape according to claim 1, characterized in that, The medical pressure-sensitive adhesive layer (5) is a low-sensitivity, high-adhesion medical-grade pressure-sensitive adhesive, suitable for skin contact.

3. The novel waterproof and breathable adhesive tape according to claim 1, characterized in that, The skin-friendly nonwoven layer (6) is made of soft, low-irritant fiber material and has good breathability and moisture absorption.

4. The novel waterproof and breathable adhesive tape according to claim 1, characterized in that, The superhydrophobic nonwoven fabric layer (1) has floating pieces (7) at each of the four corners on the upper side. The floating pieces (7) are transparent plastic sheets. The floating pieces (7) are semi-circular and fixedly connected to the superhydrophobic nonwoven fabric layer (1) with straight edges.

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