Anti-side-leakage absorption core structure

Abstract

The utility model discloses an anti-side-leakage absorption core body structure which comprises an absorption core body and a wrapping layer, the wrapping layer comprises an upper hydrophilic layer and a lower waterproof layer, the upper hydrophilic layer is arranged on the upper end face of the absorption core body, and the lower waterproof layer wraps the bottom end face and the two side end faces of the absorption core body. The two sides of the lower water isolation layer extend upwards and then are bent towards the upper hydrophilic layer, so that the two ends of the lower water isolation layer cover the two ends of the upper hydrophilic layer, and the joints of the two ends of the upper hydrophilic layer and the two ends of the lower water isolation layer are combined and fixed in an adhesive, hot pressing or ultrasonic wave mode; or the wrapping layer only comprises a water insulation lower layer, the water insulation lower layer wraps the bottom end face and the two side end faces of the absorption core body, and the two sides of the water insulation lower layer extend upwards to be higher than the top end face of the absorption core body and then are bent towards the absorption core body so as to wrap the two sides of the absorption core body. According to the application, the absorption core body is wrapped by the water-proof lower layer, so that after the absorption core body absorbs liquid, the liquid is wrapped by the water-proof lower layer with a water-proof effect, and thus side leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sanitary products, and particularly relates to a side leakage prevention absorbing core structure. BACKGROUND

[0002] The disposable absorbent nursing products on the market at present adopt the side leakage prevention mode of the surface layer, but on the one hand, the material used is a non-waterproof material, and in the use process, part of the liquid still penetrates the two sides of the material and causes side leakage due to extrusion. On the other hand, the side leakage prevention measures of the surface layer material are affected by the shape in use, such as extrusion deformation, insufficient water pressure resistance, and liquid penetration of the surface layer material on both sides, and cannot achieve effective side leakage prevention effect.

[0003] The side leakage prevention application of the core body is used in absorbent products such as sanitary napkins, urinary incontinence products, baby incontinence products, adult incontinence products, and solves the problem of side leakage in use. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the deficiency of the prior art, the utility model aims at providing a side leakage prevention absorbing core structure to solve the problem of easy side leakage of the existing absorbing core. To achieve this goal, the specific technical scheme of the present application is as follows:

[0005] The side leakage prevention absorbing core structure comprises an absorbing core and a wrapping layer, and the wrapping layer partially or wholly covers the absorbing core.

[0006] The wrapping layer comprises a hydrophilic upper layer and a waterproof lower layer, the hydrophilic upper layer is arranged on the upper end face of the absorbing core, the waterproof lower layer covers the bottom end face and the two side end faces of the absorbing core, the two sides of the waterproof lower layer are respectively extended upwards and then bent towards the hydrophilic upper layer, so that the two end portions of the waterproof lower layer are covered on the two end portions of the hydrophilic upper layer, and the two end portions of the hydrophilic upper layer and the waterproof lower layer are combined and fixed by means of gluing, hot pressing or ultrasonic wave; or

[0007] The wrapping layer only comprises a waterproof lower layer, the waterproof lower layer covers the bottom end face and the two side end faces of the absorbing core, and the two sides of the waterproof lower layer are respectively extended upwards to a position higher than the top end face of the absorbing core and then bent towards the absorbing core to cover the two sides of the absorbing core.

[0008] Further, the waterproof lower layer comprises a bottom layer surface arranged on the bottom end face of the absorbing core and a side layer surface arranged on the two side end faces, the side layer surface is a C-shaped structure and covers the two side portions of the absorbing core.

[0009] Further, the bottom layer surface and the side layer surface are integrally arranged and are a one-piece structure.

[0010] Further, the water-proof underlayer is a three-piece structure, the bottom layer is a sheet material, the side layer is a water-proof material, and the lower end of the side layer covers the end of the bottom layer, and the end of the bottom layer and the side layer are combined and fixed by gluing, hot pressing or ultrasonic wave.

[0011] Further, the thickness of the water-proof underlayer is 5-50 grams per square meter, and the covering width of the side layer to the single side of the absorbent core body is 2-40 millimeters.

[0012] Compared with the prior art, the application has the following advantages: in the application, the absorbent core body is covered by the water-proof underlayer, especially the two sides of the absorbent core body are covered by the side layer, so that after the absorbent core body absorbs liquid, the liquid is covered by the water-proof underlayer, thereby avoiding side leakage. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Fig. 1 is a structural schematic diagram of the application embodiment 1;

[0014] Figure 2 Fig. 2 is a use schematic diagram of the application embodiment 1;

[0015] Figure 3 Fig. 3 is a structural schematic diagram of the application embodiment 2;

[0016] Figure 4 Fig. 4 is a use schematic diagram of the application embodiment 2;

[0017] Figure 5 Fig. 5 is a structural schematic diagram of the application embodiment 3;

[0018] Figure 6 Fig. 6 is a use schematic diagram of the application embodiment 3;

[0019] Figure 7 Fig. 7 is a structural schematic diagram of the application embodiment 4;

[0020] Figure 8 Fig. 8 is a use schematic diagram of the application embodiment 4.

[0021] Fig. 1: 1-absorbent core body, 2-wrapping layer, 21-hydrophilic upper layer, 22-water-proof underlayer, 221-bottom layer, 222-side layer, 3-wrapping assembly, 31-surface layer, 32-water-proof layer. DETAILED DESCRIPTION

[0022] In order to make the skilled in the art more clearly understand the technical scheme of the application, the application will be further described below with reference to the drawings. Embodiment 1

[0023] As Figure 1In the illustrated embodiment, a side leakage-proof absorbent core structure includes an absorbent core 1 and a wrapping layer 2, wherein the wrapping layer 2 completely covers the absorbent core 1. Specifically, the wrapping layer 2 includes a hydrophilic upper layer 21 and a water-insulating lower layer 22. The hydrophilic upper layer 21 is disposed on the upper end surface of the absorbent core 1, and the water-insulating lower layer 22 covers the bottom end surface and both side end surfaces of the absorbent core 1. Both sides of the water-insulating lower layer 22 extend upward and then bend toward the hydrophilic upper layer 21, so that the two ends of the water-insulating lower layer 22 cover the two ends of the hydrophilic upper layer 21, and the two ends of the hydrophilic upper layer 21 and the water-insulating lower layer 22 are fixed together by gluing, heat pressing, or ultrasonic bonding.

[0024] In a specific implementation, in order to ensure the waterproof effect, the material of the waterproof lower layer 122 is made of a material with waterproof ability and a material with a hydrostatic pressure resistance of 10,000 mm water column or above.

[0025] In addition, in this embodiment, the thickness of the water-isolating lower layer 22 is 5 to 50 grams per square meter, and the single-side covering width of both sides of the water-isolating lower layer 22 on the absorbent core 1 is 2 to 40 millimeters.

[0026] like Figure 2 As shown, in actual use, the core structure is covered with a wrapping assembly 3, which includes a surface layer 31 and a waterproof layer 32. The surface layer 31 covers the upper end face and both side end faces of the core structure of this application, and the waterproof layer 32 is provided on the bottom end face of the core structure. The ends of the surface layer 31 and the waterproof layer 32 are bonded and fixed by gluing, hot pressing, or ultrasonic methods. The surface layer 31 can be designed as a single piece or a three-piece structure.

[0027] It can be understood that the present application covers the absorbent core 1 with a water-proof lower layer 22, so that after the absorbent core absorbs liquid, the liquid is covered by the water-proof lower layer 22 with a water-proof effect, thereby avoiding side leakage; in addition, by covering both sides of the entire core structure with a surface layer 31, side leakage can be further avoided. Example 2

[0028] like Figure 3 In the illustrated embodiment, a side leakage-preventing absorbent core structure comprises an absorbent core 1 and a wrapping layer 2, which partially or fully covers the absorbent core 1. Specifically, the wrapping layer 2 comprises only a water-insulating lower layer 22, which covers the bottom and side end surfaces of the absorbent core 1. Both sides of the water-insulating lower layer 22 extend upward to a point above the top end surface of the absorbent core 1, then bend toward the absorbent core 1 to cover both sides of the absorbent core 1. In practice, to ensure a water-insulating effect, the water-insulating lower layer 122 is made of a material with water-insulating properties and a hydrostatic pressure resistance of 10,000 mm or more.

[0029] In addition, in this embodiment, the thickness of the water-isolating lower layer 22 is 5 to 50 grams per square meter, and the single-side covering width of both sides of the water-isolating lower layer 22 on the absorbent core 1 is 2 to 40 millimeters.

[0030] like Figure 4 As shown, in actual use, the core structure is covered with a wrapping assembly 3, which includes a surface layer 31 and a waterproof layer 32. The surface layer 31 covers the upper end face and both side end faces of the core structure of this application, and the waterproof layer 32 is provided on the bottom end face of the core structure. The ends of the surface layer 31 and the waterproof layer 32 are bonded and fixed by gluing, hot pressing, or ultrasonic methods. The surface layer 31 can be designed as a single piece or a three-piece structure.

[0031] It can be understood that the present application covers the absorbent core 1 with a water-proof lower layer 22, so that after the absorbent core 1 absorbs liquid, the liquid is covered by the water-proof lower layer 22 with a water-proof effect, thereby avoiding side leakage; in addition, by covering both sides of the entire core structure with a surface layer 31, side leakage can be further avoided. Example 3

[0032] like Figure 5 and Figure 6 As shown, it can be seen that the difference between this embodiment and embodiment 1 lies in the different structure of the waterproof lower layer 22. In embodiment 1, the waterproof lower layer 22 is a one-piece structure, while in this application, the waterproof lower layer 22 is a three-piece structure.

[0033] Specifically, the water-insulating lower layer 22 comprises a bottom surface 221 disposed at the bottom end of the absorbent core 1 and side surface layers 222 disposed on both side end surfaces. The side surface layers 222 are C-shaped and cover both sides of the absorbent core 1. That is, in the first embodiment, the bottom surface 221 and the side surface layers 222 are integrally formed into a one-piece structure.

[0034] In this embodiment, the waterproof lower layer 22 is a three-piece structure, the bottom surface 221 is a sheet material, the side surface 222 is a waterproof material, and the lower end of the side surface 222 covers the end of the bottom surface 221. The end connection between the bottom surface 221 and the side surface 222 is fixed by gluing, hot pressing or ultrasonic bonding.

[0035] The thickness of the water-proof lower layer 22 is 5 to 50 grams per square meter, and the single-side covering width of the side surface layer 222 on the absorbent core 1 is 2 to 40 millimeters. Example 4

[0036] like Figure 7 and Figure 8 As shown, it can be seen that the difference between this embodiment and the second embodiment lies in the different structures of the waterproof lower layer 22. In the second embodiment, the waterproof lower layer 22 is a one-piece structure, while in this application, the waterproof lower layer 22 is a three-piece structure.

[0037] Specifically, the water-insulating lower layer 22 comprises a bottom surface 221 disposed at the bottom end of the absorbent core 1 and side surface layers 222 disposed on both side end surfaces. The side surface layers 222 are C-shaped and cover both sides of the absorbent core 1. That is, in the first embodiment, the bottom surface 221 and the side surface layers 222 are integrally formed into a one-piece structure.

[0038] In this embodiment, the waterproof lower layer 22 is a three-piece structure, the bottom surface 221 is a sheet material, the side surface 222 is a waterproof material, and the lower end of the side surface 222 covers the end of the bottom surface 221. The end connection between the bottom surface 221 and the side surface 222 is fixed by gluing, hot pressing or ultrasonic bonding.

[0039] The thickness of the water-proof lower layer 22 is 5 to 50 grams per square meter, and the single-side covering width of the side surface layer 222 on the absorbent core 1 is 2 to 40 millimeters.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side leakage prevention absorbent core structure, comprising an absorbent core (1) and a wrapping layer (2), wherein the wrapping layer (2) partially or completely covers the absorbent core (1); characterized in that: The wrapping layer (2) comprises a hydrophilic upper layer (21) and a water-insulating lower layer (22), wherein the hydrophilic upper layer (21) is arranged on the upper end face of the absorbent core (1), and the water-insulating lower layer (22) covers the bottom end face and both side end faces of the absorbent core (1); both sides of the water-insulating lower layer (22) extend upward and then bend toward the hydrophilic upper layer (21), so that the two ends of the water-insulating lower layer (22) cover the two ends of the hydrophilic upper layer (21), and the connection between the two ends of the hydrophilic upper layer (21) and the water-insulating lower layer (22) is fixed by gluing, hot pressing or ultrasonic bonding; or The wrapping layer (2) only includes a water-proof lower layer (22), and the water-proof lower layer (22) covers the bottom end surface and both side end surfaces of the absorbent core (1). Both sides of the water-proof lower layer (22) extend upward to a level higher than the top end surface of the absorbent core (1) and then bend toward the absorbent core (1) to cover both sides of the absorbent core (1).

2. The side leakage preventing absorbent core structure according to claim 1, characterized in that: The water-proof lower layer (22) comprises a bottom surface (221) arranged on the bottom end surface of the absorbent core (1) and side surface layers (222) on both side end surfaces. The side surface layers (222) are of a C-shaped structure and cover both sides of the absorbent core (1).

3. The side leakage preventing absorbent core structure according to claim 2, characterized in that: The bottom surface (221) and the side surface (222) are integrally provided and form a one-piece structure.

4. The side leakage preventing absorbent core structure according to claim 2, characterized in that: The waterproof lower layer (22) is a three-piece structure, the bottom surface (221) is a sheet material, the side surface (222) is a waterproof material, and the lower end of the side surface (222) covers the end of the bottom surface (221), and the end connection of the bottom surface (221) and the side surface (222) is fixed by gluing, hot pressing or ultrasonic bonding.

5. The side leakage preventing absorbent core structure according to any one of claims 2 to 4, characterized in that: The thickness of the water-proof lower layer (22) is 5 to 50 grams per square meter, and the single-side covering width of the side surface layer (222) on the absorbent core (1) is 2 to 40 millimeters.

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