A multi-layered containment sanitary napkin

Abstract

The utility model discloses a sanitary towel of multilayer guard, including by the sanitary towel body of leakage prevention layer, absorbent core body and surface layer, the both sides of surface layer are pasted with the guard, and the guard is formed multilayer structure by the non -woven fabric of a piece through multiple folding, and the adhesion between every layer is fixed to the physical barrier and the three -dimensional protection double leakproof system of dual protection of construction, can block its outward diffusion when liquid contacts the guard to improve the effect of preventing side leakage, in addition, the adhesion between every layer folding of the guard can also provide the guard with greater support, even if the user extrudes the guard in the course of activity, can keep the structure of three -dimensional, avoid the collapse of the guard, lead to the invalidation of the leakage prevention boundary.

Description

Technical Field

[0001] This utility model relates to a sanitary product, and more particularly to a multi-layered sanitary napkin. Background Technology

[0002] In the design of hygiene products (such as sanitary napkins and diapers), leak-proof performance has always been an important aspect of the product's core competitiveness. Traditional hygiene products typically consist of a leak-proof layer, an absorbent core, and a surface layer as their basic structure. However, in actual use, side leakage remains one of the main pain points for user experience. In existing technologies, some products incorporate protective structures on both sides of the surface layer to address this issue. However, traditional protective structures often use a single layer of material directly fixed in place. The height of a single-layer protective structure is insufficient, making it prone to side leakage during use, especially during heavy flow. Currently, three-dimensional protective structures are also used. However, these structures require the use of non-woven fabric combined with elastic spandex fibers. After being made into sanitary napkins, the shrinkage of the spandex fibers causes wrinkles in the non-woven fabric, which can rub against the legs and create an unpleasant user experience. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a sanitary napkin with multiple protective layers.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A multi-layer sanitary napkin includes a sanitary napkin body composed of a leak-proof layer, an absorbent core, and a surface layer. The surface layer has protective covers pasted on both sides. The protective covers are formed by multiple folds of a single non-woven fabric, and each layer is fixed with adhesive.

[0006] The enclosure includes a bottom layer and a folded portion. The upper end of the folded portion extends away from the absorbent core, and the lower end of the folded portion extends towards the absorbent core. The bottom layer is folded over on the side near the absorbent core to form a connecting portion. The upper end of the connecting portion is connected to the upper end of the folded portion, and the bottom of the lower end of the folded portion is adhered to the surface of the bottom layer.

[0007] The bottom layer is fixed to both sides of the top layer with adhesive.

[0008] The lower end of the folded portion is longer than the width of the bottom layer. The lower end of the folded portion is adhered to the surface of the bottom layer, and the remaining portion is adhered to the top layer.

[0009] The enclosure is made of water-repellent non-woven fabric.

[0010] The leak-proof layer is a PE breathable membrane.

[0011] The absorbent core is composed of fluff pulp mixed with superabsorbent polymer, dust-free paper, or composite paper.

[0012] The beneficial effects of this utility model are as follows: This utility model has protective barriers pasted on both sides of the surface layer. The protective barriers are multi-layered structures formed by multiple folds of a non-woven fabric, and each layer is fixed with adhesive, thereby constructing a dual leak-proof system of physical barrier and three-dimensional protection. When liquid comes into contact with the protective barrier, it can prevent it from spreading outward to improve the side leakage prevention effect. In addition, the adhesive between each fold of the protective barrier can also provide greater support for the protective barrier. Even if the user squeezes the protective barrier during activities, it can maintain the three-dimensional structure and prevent the protective barrier from collapsing, which would cause the leak-proof boundary to fail. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is one of the schematic diagrams of the protective fence;

[0016] Figure 3 This is the second schematic diagram of the protective fence. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0019] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0020] Reference Figure 1-3 A multi-layered sanitary napkin includes a sanitary napkin body composed of a leak-proof layer 1, an absorbent core 2, and a surface layer 3. The leak-proof layer 1 is a PE breathable membrane. The absorbent core 2 is composed of fluff pulp mixed with superabsorbent polymer, dust-free paper, or composite paper. Protective barriers 4 are attached to both sides of the surface layer 3. The protective barriers 4 are multi-layered structures formed by multiple folds of a single non-woven fabric, with each layer fixed by adhesive, thereby constructing a dual leak-proof system of physical barrier and three-dimensional protection. When liquid comes into contact with the protective barriers 4, it can prevent it from spreading outward to improve the side leakage prevention effect. In addition, the adhesive between each fold of the protective barriers 4 can also provide greater support for the protective barriers. Even if the protective barriers are squeezed during user activities, they can maintain a three-dimensional structure and prevent the protective barriers from collapsing, which would cause the leak-proof boundary to fail.

[0021] The enclosure 4 is made of water-repellent non-woven fabric. The non-absorbent nature of the water-repellent non-woven fabric allows it to maintain its dry mechanical properties during use. Even when in contact with liquid for a long time, the weight and thickness of the enclosure will not change significantly due to water absorption, ensuring the stability of the three-dimensional shape of the multi-layer folded structure. This characteristic allows the enclosure to maintain the preset leak-proof boundary shape when the user is active, avoiding the collapse of the enclosure due to material softening.

[0022] The protective enclosure 4 includes a bottom layer 5 and a folded portion 6. The upper end of the folded portion 6 extends away from the absorbent core 2, and the lower end of the folded portion 6 extends towards the absorbent core 2. The bottom layer 5 is folded over on the side close to the absorbent core 2 to form a connecting portion 7. The upper end of the connecting portion 7 is connected to the upper end of the folded portion 6, and the bottom of the lower end of the folded portion 6 is adhered to the surface of the bottom layer 5.

[0023] In this application, the folded portion 6 is key to forming the three-dimensional structure of the enclosure 4, and the number of folds in the folded portion 6 can be one layer (e.g., Figure 2 As shown), it can also be multi-layered (such as...). Figure 3 As shown, for daytime sanitary napkins, the number of layers in the folded portion 6 can be relatively fewer, while for nighttime sanitary napkins, the number of layers in the folded portion 6 can be relatively more.

[0024] During production, the protective enclosure 4 is first folded in the middle section of a non-woven fabric to form the folded portion 6, with the end of the non-woven fabric forming the lower part of the folded portion 6 (e.g., ...). Figure 2 , 3 As shown in A), the front end of the nonwoven fabric is first folded to form the connecting part 7, and then folded to form the bottom layer 5. At this time, the bottom layer 5 is located at the bottom of the lower end of the folded part 6.

[0025] Furthermore, between folds, adhesive dots need to be sprayed onto the corresponding positions on the non-woven fabric. When fully folded, all the dots will be precisely located at the respective adhesive points (e.g., ...). Figure 2 , 3 (As shown by the dotted lines in the image), after folding, the various parts are fixed by a hot pressing process.

[0026] The bottom layer 5 is fixed to both sides of the top layer 3 by adhesive.

[0027] The lower end of the folded portion 6 is longer than the width of the bottom layer 5. The lower end of the folded portion 6 is adhered to the surface of the bottom layer 5, and the remaining part is adhered to the surface layer 3.

[0028] Before the guardrail 4 is fixed to the surface layer 3, some adhesive needs to be sprayed onto both sides of the surface layer 3. After the guardrail 4 is placed on both sides of the surface layer 3, the guardrail 4 can be fixed to the surface layer 3 by hot pressing.

[0029] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A multi-layered sanitary napkin, comprising a sanitary napkin body composed of a leak-proof layer (1), an absorbent core (2), and a surface layer (3), characterized in that... The surface layer (3) has protective covers (4) pasted on both sides. The protective covers (4) are multi-layered structures formed by multiple folds of a non-woven fabric, and each layer is fixed with adhesive.

2. The sanitary napkin with multi-layered sheaths according to claim 1, characterized in that... The enclosure (4) includes a bottom layer (5) and a folded portion (6). The upper end of the folded portion (6) extends away from the absorbent core (2), and the lower end of the folded portion (6) extends towards the absorbent core (2). The bottom layer (5) is folded over on the side close to the absorbent core (2) to form a connecting portion (7). The upper end of the connecting portion (7) is connected to the upper end of the folded portion (6), and the bottom of the lower end of the folded portion (6) is adhered to the surface of the bottom layer (5).

3. The sanitary napkin with multi-layered sheaths according to claim 2, characterized in that... The bottom layer (5) is fixed to both sides of the top layer (3) by adhesive.

4. The sanitary napkin with multi-layered sheaths according to claim 2, characterized in that... The lower end of the folded portion (6) is longer than the width of the bottom layer (5). The lower part of the folded portion (6) is adhered to the surface of the bottom layer (5), and the remaining part is adhered to the surface layer (3).

5. The sanitary napkin with multi-layered sheaths according to claim 1, characterized in that... The protective enclosure (4) is made of water-repellent nonwoven fabric.

6. The sanitary napkin with multi-layered sheaths according to claim 1, characterized in that... The leak-proof layer (1) is a PE breathable membrane.

7. The sanitary napkin with multi-layered sheaths according to claim 1, characterized in that... The absorbent core (2) is composed of fluff pulp mixed with superabsorbent polymer, dust-free paper or composite paper.

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