Sanitary napkin core piece with karst cave core structure

Abstract

The utility model relates to the technical field of sanitary napkins, in particular to a sanitary napkin core piece with a karst cave core structure, which comprises a contact layer, a flow guide layer and an absorption layer which are sequentially stacked, and a karst cave core is connected between the flow guide layer and the absorption layer. The surface of the karst cave core is provided with a through hole part used for accelerating liquid permeation, and the sanitary towel core piece with the karst cave core structure overcomes the defects that in the prior art, the permeation and transmission efficiency of liquid is low, and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to sanitary towel technical field especially, a kind of sanitary towel core piece with cave core structure. BACKGROUND

[0002] The structure of existing sanitary towel can refer to the sanitary towel proposed in Chinese patent application number: "CN201510852313.

[0003] The transfer efficiency between the contact layer for contacting with skin and the absorption layer for storing liquid of the existing sanitary towel of this type is slow, so that the instantaneous absorption efficiency of the sanitary towel for liquid is reduced.

[0004] Therefore, the present case will propose a new sanitary towel structure for improving the penetration transfer efficiency of liquid between contact layer and absorption layer. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of sanitary towel core piece with cave core structure, which is proposed to solve the low penetration transfer efficiency of liquid in prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A kind of sanitary towel core piece with cave core structure is designed, including contact layer, flow guide layer, absorption layer which are stacked in sequence, the flow guide layer is connected with the absorption layer and has cave core;

[0008] The surface of the cave core is provided with a through-hole part for accelerating liquid penetration.

[0009] Preferably, the through-hole part includes multiple groups of first holes and multiple groups of second holes, the first holes and the second holes are respectively provided on the front and back sides of the cave core, and the first holes have a larger hole diameter than the second holes.

[0010] Preferably, the through-hole part includes multiple groups of small first holes.

[0011] Preferably, the through-hole part includes multiple groups of wide second holes.

[0012] Preferably, the through-hole part is of a through structure.

[0013] Preferably, the through-hole part is integrally formed with a breathable film inside.

[0014] Preferably, the thickness of the cave core is between 2mm and 3mm.

[0015] Preferably, the cave core is integrally formed with a peripheral part around the periphery.

[0016] The sanitary napkin core sheet with the cave core structure has the beneficial effects that:

[0017] The through hole part can improve the penetration rate of liquid and can guide liquid under the premise of ensuring the functionality of the cave core.

[0018] The through hole part structure can realize different effects, such as improving the penetration rate or improving the air permeability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structure diagram of the main body;

[0020] Figure 2 is an exploded structure diagram of the main body;

[0021] Figure 3 is a structure diagram of the arrangement mode one of the through hole part;

[0022] Figure 4 is a structure diagram of the arrangement mode two of the through hole part;

[0023] Figure 5 is a structure diagram of the arrangement mode three of the through hole part;

[0024] Figure 6 is a structure diagram of the through hole part with the air permeable film.

[0025] In the drawings:

[0026] 1, contact layer; 101, flow guide layer; 2, cave core; 201, peripheral part; 3, absorption layer;

[0027] A1, first hole; A2, second hole; A3, air permeable film. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0029] Referring to Figures 1-6 Here is an example of the embodiment of the main body:

[0030] A sanitary napkin chip with a cavern core structure includes a contact layer 1, a diversion layer 101, and an absorbent layer 3 stacked sequentially. The contact layer 1 is made of a water-absorbing, skin-friendly material. The diversion layer 101 is used for rapid liquid diffusion and to prevent the backflow of SAP polymers. The absorbent layer 3 is used to absorb and lock in the liquid. To improve comfort and functionality, existing technologies often add an "intermediate layer" between the diversion layer 101 and the absorbent layer 3. In this case, to allow the liquid absorbed and diffused by the contact layer 1 and the diversion layer 101 to quickly penetrate through the "intermediate layer" to the absorbent layer 3, the existing intermediate layer is replaced with a cavern core 2. (Refer to...) Figure 2 The basic structure in this case includes a contact layer 1, a flow guiding layer 101, a karst core 2, and an absorption layer 3 arranged in sequence.

[0031] The thickness of the core 2 is 2mm-3mm, and through holes are formed on the surface of the core 2, allowing liquid to quickly seep through the core 2 and into the absorption layer 3; see reference. Figures 2-6 The outer periphery of the core 2 is integrally formed with an outer periphery 201. The outer periphery 201 is denser than the inner periphery of the core 2, making it difficult for liquid to be transferred to the periphery and preferentially penetrating to the area with the through holes.

[0032] Reference Figure 3 Arrangement of the through holes: The through holes include multiple sets of first holes A1 and multiple sets of second holes A2. The first holes A1 and the second holes A2 are respectively opened on the front and back sides of the core 2. The diameter of the first hole A1 is larger than that of the second hole A2. Under this structure, the product needs to be distinguished between the front and back when in use. The side where the first hole A1 is located has higher tensile strength and denser arrangement, which is conducive to liquid penetration. The side where the second hole A2 is located has better air permeability. However, due to the size and arrangement of the second hole A2, the liquid penetration rate and penetration uniformity of this part are lower than those of the side where the first hole A1 is located. However, the second hole A2 has better air permeability.

[0033] Reference Figure 4 Arrangement method 2 of the through hole section: The through hole section includes multiple sets of first holes A1. Compared with the arrangement method 1 of the through hole section, this arrangement method does not require distinguishing between front and back, and the liquid permeation rate and permeation uniformity are the same throughout the entire area of ​​the karst core 2.

[0034] Reference Figure 5 Arrangement method three of the through holes: The through holes include multiple sets of second holes A2. Compared with the arrangement method one of the through holes, this arrangement method does not require distinguishing between front and back, and the entire area of ​​the cave core 2 has good air permeability.

[0035] Reference Figure 6Compared with the arrangement modes one, two and three of the through hole part, the first hole A1 and the second hole A2 are integrally formed with a breathable film A3 inside, the thickness of the breathable film A3 is lower than the thickness of the solution cavity core 2, the first hole A1 and the second hole A2 form a non-through structure, the strength is improved, and a certain permeation rate is maintained.

[0036] Based on the above-mentioned embodiments, in use:

[0037] The liquid is in contact with the contact layer 1 and the flow guide layer 101 and is absorbed, the flow guide layer 101 promotes the rapid diffusion of the liquid to cope with the situation of instantaneous large flow; the liquid diffused by the flow guide layer 101 is in contact with the solution cavity core 2 and rapidly infiltrates to the absorption layer 3 through the through hole part, so that the absorption layer 3 can absorb the liquid more quickly, reduce the resistance of the liquid during infiltration, and improve the absorption rate;

[0038] When the arrangement mode one of the through hole part is adopted, the front and back need to be distinguished during use to respectively play the effects of rapid infiltration and air permeation;

[0039] When the arrangement modes two and three of the through hole part are adopted, the front and back do not need to be distinguished during use, and the effects of uniform infiltration or improved air permeability are respectively played.

[0040] The above-mentioned is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sanitary napkin core having a caved core structure, characterized by: The contact layer (1), the flow guide layer (101) and the absorption layer (3) are sequentially stacked, and a cave core (2) is connected between the flow guide layer (101) and the absorption layer (3); A through hole part for accelerating liquid penetration is arranged on the surface of the cave core (2).

2. A sanitary napkin core having a cored channel structure according to Claim 1 characterized in that: The through hole part includes multiple groups of first holes (A1) and multiple groups of second holes (A2), the first holes (A1) and the second holes (A2) are arranged on the front and back sides of the cave core (2) respectively, and the aperture of the first holes (A1) is larger than that of the second holes (A2).

3. A sanitary napkin core having a cored channel structure according to Claim 1 characterized in that: The through hole part includes multiple groups of small first holes (A1).

4. The sanitary napkin core of claim 1 wherein: The through hole part includes multiple groups of wide second holes (A2).

5. The sanitary napkin core of claim 1 wherein: The through hole part is a through structure.

6. The sanitary napkin core of claim 1 wherein: A breathable film (A3) is integrally formed in the through hole part.

7. The sanitary napkin core of claim 1 wherein: The thickness of the cave core (2) is 2-3 mm.

8. The sanitary napkin core of claim 1 wherein: An outer peripheral part (201) is integrally formed on the outer periphery of the cave core (2).

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