Mammary gland

By designing a layered structure of upper and lower absorbent layers and a flow channel in the breast pad, the problem of insufficient absorption in the center of the breast pad is solved, achieving efficient absorption of high-viscosity emulsion and multiple milk flow, thus improving absorption capacity and comfort.

CN117064643BActive Publication Date: 2026-03-20SHANGHAI HULIJIA IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-21
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing breast pads have insufficient absorption capacity in the center, especially for high-viscosity emulsions and multiple milk flow situations. Furthermore, existing improvement methods are complex or still have insufficient absorption capacity.

Method used

A breast pad structure is designed, including an upper absorbent layer and a main absorbent layer. The main absorbent layer has a notch at the center to form a receiving area. The upper absorbent layer is stacked on the main absorbent layer and is pressed together to form a guide channel and radial pressure groove to accelerate the diffusion of the emulsion. The stacked structure of the upper absorbent layer and the main absorbent layer improves the absorption efficiency.

Benefits of technology

It improves the absorption capacity of high-viscosity emulsions, reduces backflow, increases absorption capacity, and enhances user comfort. In particular, it can still effectively absorb milk even in the case of multiple milk flow, reducing backflow by more than 65%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The breast pad provided by the embodiment of the present application comprises a body, the body comprises a surface layer, a bottom layer and an absorbing core body sandwiched between the surface layer and the bottom layer, the surface layer and the bottom layer are combined along the outer peripheral edge, the absorbing core body comprises a top absorbing layer and a main absorbing layer which are stacked, the main absorbing layer comprises a main absorbing area, the top absorbing layer further comprises a notch part, the notch part forms a containing area, and the main absorbing area is located in the containing area. Through the above arrangement, on the one hand, the gushing milk can be fully absorbed into the fitting area, on the other hand, the back seepage is greatly reduced, on the third hand, the top absorbing layer forms a cushion layer, the compression feeling on the nipple is reduced, the comfort is improved, on the fourth hand, the absorbing capacity for high-viscosity milk is improved, and on the fifth hand, the absorbing capacity of the breast pad is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of absorbent articles, in particular to a breast pad. BACKGROUND

[0002] The breast pad is a kind of maternal and child product to prevent the overflow of breast milk of lactating women. With the continuous improvement of people's living standards, it has been paid more and more attention.

[0003] The existing breast pad usually includes an absorbent layer uniformly distributed with high molecular water-absorbing material (SAP). The absorbent layer has a porous network structure with a large number of pores. On the one hand, the high molecular water-absorbing material has a strong liquid absorption capacity to absorb breast milk. On the other hand, the pores conduct and accommodate the breast milk. However, in the existing structure, the position corresponding to the overflow of the breast milk is the center position of the breast pad, so the absorption capacity of the center position may be insufficient. In addition, the absorption capacity is still insufficient when dealing with high-viscosity breast milk such as colostrum, and the absorption capacity is also insufficient when dealing with multiple milk overflow situations.

[0004] In order to deal with the insufficient absorption capacity of the center position, the patent document with the document number CN111529206A and the name of breast pad and manufacturing device proposes to separate the absorbent layer into several accommodation areas by indentation, and to limit the position of the high molecular water-absorbing material (SAP) by the indentation, so as to have a higher SAP distribution in a specific area of the absorbent layer, so as to make full use of the absorption capacity of the specific area. In this way, the SAP is still uniformly distributed in the specific area, and the absorption capacity of the overflow area is still insufficient in some cases, especially in the case of gushing milk, the absorption capacity is still insufficient to deal with the amount of gushing milk, and the absorption capacity of the SAP cannot be comprehensively utilized.

[0005] Further, in the patent document with the document number CN116531174A and the name of anti-gushing breast pad, it is further proposed to set a groove on the absorbent layer, and to set the SAP in the groove, so as to make the SAP have sufficient swelling space to improve the absorption capacity, and at the same time, to reduce the pore blockage phenomenon caused by the swelling of the high molecular water-absorbing material, to improve the utilization efficiency and absorption capacity of the high molecular water-absorbing material, and to prevent the embarrassment of gushing milk. However, this way is relatively complex in process, and special devices are needed to form the groove and set the SAP in the groove.

[0006] In addition, the above-mentioned way still has insufficient when dealing with high-viscosity breast milk, so a breast pad is needed to solve the above-mentioned technical problems. SUMMARY

[0007] Therefore, the present application provides a breast pad to solve the above-mentioned technical problems.

[0008] A breast pad comprises a body, the body comprising a surface layer, a bottom layer and an absorbent core sandwiched between the surface layer and the bottom layer, the surface layer and the bottom layer being combined along an outer peripheral edge portion, the absorbent core comprising a top absorbent layer and a main absorbent layer stacked together, the main absorbent layer comprising a main absorbent region, the top absorbent layer further comprising a notch portion, the notch portion forming a receiving region, the main absorbent region being located in the receiving region.

[0009] The density of the top absorbent layer is less than that of the main absorbent layer.

[0010] The top absorbent layer is crescent or U-shaped, and two opposite protruding portions are formed on both sides of the notch portion, the two protruding portions being symmetrically arranged.

[0011] The first combining portion combines the top absorbent layer and the main absorbent layer by means of pressing.

[0012] The first combining portion is arranged along the edge of the top absorbent layer.

[0013] The top absorbent layer further comprises a pressing groove, the pressing groove being linear and extending from the direction adjacent to the main absorbent region to the direction away from the main absorbent region.

[0014] The pressing groove has a plurality of lines, and the plurality of lines are arranged radially around the main absorbent region.

[0015] The body further comprises a separation layer, the separation layer comprising a main body portion located between the absorbent core and the bottom layer, a covering portion covering the absorbent core and a connecting portion connecting the main body portion and the covering portion.

[0016] The main body portion and the covering portion are integrally formed.

[0017] The covering portion and the main body portion form a bag shape, a receiving space is formed between the main body portion and the covering portion, and the absorbent core is inserted into the receiving space.

[0018] Beneficial effects: the embodiment of the present application provides a breast pad, comprising a body, the body comprises a surface layer, a bottom layer and an absorption core body sandwiched between the surface layer and the bottom layer, the surface layer and the bottom layer are combined along the outer peripheral edge part, the absorption core body comprises a upper absorption layer and a main absorption layer arranged in layers, the main absorption layer comprises a main absorption area, the upper absorption layer also comprises a notch part, the notch part forms a containing area, and the main absorption area is located in the containing area, through the above arrangement, on the one hand, the gushing milk can be fully absorbed into the fitting area, on the other hand, the back seepage is greatly reduced, on the third aspect, the upper absorption layer forms a cushion layer, the compression feeling on the nipple is reduced, the comfort is improved, on the fourth aspect, the absorption capacity of high viscosity milk is improved, on the fifth aspect, the absorption capacity of the breast pad is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The front view of the breast pad of the first embodiment of the present application;

[0020] Figure 2 For Figure 1 The schematic view of the section A-A;

[0021] Figure 3 For Figure 2 The enlarged schematic view of the area B;

[0022] Figure 4 The schematic view of the breast pad of the second embodiment;

[0023] Explanation of the illustrated element symbols:

[0024] Surface layer 10; outer peripheral edge part 101; absorption core body 20; notch part 201; bottom point 2011; convex part 202; top point 2021; first combination part 203; flow guide groove 204, 53; fitting area 205; upper absorption layer 21, 51; upper edge line 211, 511; main absorption layer 22; main absorption area 221; isolation layer 30; main body part 31; covering part 32; connecting part 33; bottom layer 40; pressing groove 52. DETAILED DESCRIPTION

[0025] Please refer to Figures 1-3 The embodiment of the present application provides a breast pad, and the present application will be further described below with reference to the drawings.

[0026] Meanwhile, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] The breast pad provided by the first embodiment of the present application comprises a body, wherein the body comprises a surface layer 10, a bottom layer 40 and an absorbent core 20 arranged between the surface layer 10 and the bottom layer 40.

[0028] The surface layer 10 is arranged on the side close to the skin of the user, and generally, the surface layer 10 is liquid permeable so that the milk can be absorbed by the absorbent layer after passing through the surface layer 10.

[0029] Since the surface layer 10 is in contact with the skin, it is preferred to select a sheet material with low irritation and softness, such as a gauze, a cotton cloth, a spunlace nonwoven fabric, a thermal air nonwoven fabric and the like with a unit area weight of 10-60 g / m2, and more preferably, a thermal air nonwoven fabric composed of thermoplastic synthetic fibers, and as the synthetic fibers constituting the thermal air nonwoven fabric, polyethylene (PE) fibers, polyolefin fibers such as polypropylene (PP) fibers, polyester fibers, polyamide fibers such as nylon and the like can be used, and in some optional embodiments, natural fibers or viscose fibers can also be added at the same time to further reduce the irritation to the skin, and these natural fibers can include wood fibers, cotton fibers and the like.

[0030] The absorbent core 20 is arranged between the surface layer 10 and the bottom layer 40 and is used to absorb the milk.

[0031] In the present embodiment, the absorbent core 20 comprises an upper absorbent layer 21 and a main absorbent layer 22 arranged in a stack, and the main absorbent layer 22 is arranged adjacent to the bottom layer 40 and comprises a main absorbent area 221, wherein the main absorbent area 221 refers to the area corresponding to the overflow of the milk, and it can be understood that when the breast pad is used, the body will be attached to the breast, and the main absorbent area 221 will be corresponded to the area where the nipple is located, and when the milk overflow occurs, this area will first contact the milk.

[0032] The upper absorbent layer 21 is arranged above the main absorbent layer 22 and adjacent to the surface layer 10, and it can be understood that the main absorbent layer 22 further comprises a fitting area 205 covered by the upper absorbent layer 21, and at the same time, the main absorbent area 221 is not covered by the upper absorbent layer 21, and the upper absorbent layer 21 further comprises a notch part 201 forming a containing area, and the main absorbent area 221 is located in the containing area, i.e., at least a part of the periphery of the main absorbent area 221 is surrounded by the upper absorbent layer 21.

[0033] It can be understood that at least a part of the fitting area 205 is located below the main absorption area 221, where the below refers to the vertical direction when the breast pad is used and fitted on the breast, so that the overflowed milk flows downward under the action of gravity into the fitting area 205 and is absorbed by the upper absorption layer 21 and the main absorption layer 22.

[0034] Research has found that the following effects are achieved in this way:

[0035] I. When the milk gushes, that is, when the absorption capacity of the main absorption area 221 is insufficient to deal with a large amount of milk gushing for a short time, the milk flows downward on the surface of the main absorption layer 22 under the action of gravity into the fitting area 205, which can be absorbed by the main absorption layer 22 and the upper absorption layer 21, especially when multiple milk gushes occur, this structure can still cope well;

[0036] II. Since the overflowed milk can quickly enter the fitting area 205 and be absorbed by the corresponding upper absorption layer 21 and main absorption layer 22 of the fitting area 205 when flowing along the surface of the main absorption layer 22, that is, the milk enters the inside of the absorption core 20, the absorption rate is faster than that of a single absorption layer, especially since the upper absorption layer 21 is provided, the backflow phenomenon through the upper absorption layer 21 and the surface layer 10 is greatly reduced, the user's body feeling is higher, and further tests show that the backflow is reduced by more than 65% compared with the prior art breast pad in 3 milk gushing tests;

[0037] III. Since the upper absorption layer 21 is stacked on the main absorption layer 22, the upper absorption layer 21 has a certain thickness, and the position corresponding to the nipple is in the main absorption area 221, so that the compression effect of the breast pad on the nipple during use is greatly reduced, further improving the use comfort;

[0038] IV. Since the gap between the upper absorption layer 21 and the main absorption layer 22 is relatively large, milk with higher viscosity, such as colostrum, can also enter the fitting area 205, so that the breast pad also has good absorption effect for colostrum and other milk with high viscosity;

[0039] V. The upper absorption layer 21 and the main absorption layer 22 are stacked, so that the absorption capacity is larger than that of the prior art breast pad.

[0040] It can be understood that the upper absorption layer 21 and the main absorption layer 22 are both formed into a three-dimensional network structure by appropriately connecting a plurality of fibers, and a plurality of pores are distributed between the three-dimensional network structures, through which the milk diffuses and is accommodated. More specifically, the fibers can be plant fibers or synthetic fibers, and the plant fibers can be fluff pulp fibers, etc.

[0041] Further, the density of the upper absorbing layer 21 is less than that of the main absorbing layer 22, so that the upper absorbing layer 21 has better touch feeling, and the main absorbing layer 22 has better absorbing performance. In a specific embodiment, the main absorbing layer 22 is provided with SAP, and the upper absorbing layer 21 is not provided with SAP.

[0042] In a specific embodiment, the main absorbing layer 22 is dust-free paper, the upper absorbing layer 21 is a core formed by entangling fluff pulp fibers, and the thickness of the upper absorbing layer 21 is greater than that of the main absorbing layer 22, so that the upper absorbing layer 21 forms a better cushion layer and reduces the compression feeling on the nipple.

[0043] Further, the area of the upper absorbing layer 21 is greater than or equal to 30% of the area of the main absorbing layer 22.

[0044] Further, the upper absorbing layer 21 is crescent or U-shaped.

[0045] Further, two opposite protruding portions 202 are formed on both sides of the notch portion 201, and the two protruding portions 202 are symmetrically arranged.

[0046] Further, the protruding portion 202 includes an apex 2021, the notch portion 201 includes a bottom point 2011, and the distance between the apex 2021 and the bottom point 2011 is D, and D≥8mm.

[0047] Further, the notch portion 201 includes an upper edge line 211, and the upper edge line 211 is in an arc shape.

[0048] Further, the first combining portion 203 is arranged between the upper absorbing layer 21 and the main absorbing layer 22, so that the upper absorbing layer 21 and the main absorbing layer 22 are combined and fixed, and the position between the upper absorbing layer 21 and the main absorbing layer 22 is prevented from changing or the upper absorbing layer 21 from falling off the main absorbing layer 22 during use.

[0049] Further, the first combining portion 203 is arranged along the edge of the upper absorbing layer 21.

[0050] Further, the first combining portion 203 is in a ring shape, so that the combination between the upper absorbing layer 21 and the main absorbing layer 22 is stable, and the upper absorbing layer 21 and the main absorbing layer 22 are prevented from being partially layered.

[0051] Further, the first bonding part 203 bonds the upper absorbing layer 21 and the main absorbing layer 22 by pressing, specifically, by applying pressure to the area corresponding to the first bonding part 203 of the upper absorbing layer 21, so that part of the fibers in the upper absorbing layer 21 and part of the fibers in the main absorbing layer 22 are entangled or form hydrogen bonds to be bonded together. In this way, at least three effects are formed. First, by pressing, the porosity of the area corresponding to the first bonding part 203 is reduced, and according to the capillary action mechanism, the area corresponding to the first bonding part 203 has the effect of guiding flow and accelerating diffusion, thereby accelerating diffusion when reaching the area corresponding to the first bonding part 203. Second, there is no material such as adhesive between the upper absorbing layer 21 and the main absorbing layer 22 that affects the diffusion of the emulsion, so as not to affect the diffusion speed. Third, the porosity between the upper absorbing layer 21 and the main absorbing layer 22 is still larger than the porosity of the upper absorbing layer 21 or the main absorbing layer 22 at the first bonding part 203, so that the emulsion with high viscosity can still be quickly absorbed and diffused.

[0052] It can be understood that no adhesive layer is arranged between the upper absorbing layer 21 and the main absorbing layer 22.

[0053] Further, the upper absorbing layer 21 is further provided with a flow guide groove 204, the flow guide groove 204 includes a groove recessed from the upper surface of the upper absorbing layer 21 to the main absorbing layer 22. It can be understood that the upper absorbing layer 21 and the main absorbing layer 22 are also bonded at the position corresponding to the flow guide groove 204. By arranging the flow guide groove 204, on the one hand, the upper absorbing layer 21 and the main absorbing layer 22 can be bonded to help fix the upper absorbing layer 21 and the main absorbing layer 22, and on the other hand, it can help the emulsion to diffuse in the absorbing core 20.

[0054] Further, the flow guide groove 204 is in the form of an arc protruding away from the main absorbing area 221, which further helps the emulsion to diffuse in the two directions.

[0055] Please refer to Figure 4 , in Figure 4 , the upper absorbing layer 51 further includes a pressing groove 52, the pressing groove 52 is in the form of a line extending from the direction adjacent to the main absorbing area to the direction away from the main absorbing area.

[0056] Further, the pressing groove 52 intersects with the upper edge line 511.

[0057] Further, the pressing groove 52 has a plurality of pressing grooves 52, and the plurality of pressing grooves 52 are arranged radially around the main absorbing area 221.

[0058] In the above manner, the emulsion can be further diffused from the main absorbing area to the fitting area.

[0059] Further, at least one pressure groove 52 intersects with the flow guide groove 53.

[0060] The body further comprises a bottom layer 40 configured on the side away from the user's skin for preventing liquid penetration, which is usually a water-repellent material, specifically, PE film, SMS non-woven fabric, etc., preferably, the bottom layer 40 can allow gas, such as water vapor, to pass through, while liquid cannot pass through, so as not to be stuffy when used.

[0061] The top layer 10, the absorbent core 20 and the bottom layer 40 are stacked, and the top layer 10 and the bottom layer 40 are combined along the outer peripheral edge 101, and a closed space is formed between the top layer 10 and the bottom layer 40 through the combination of the outer peripheral edge 101, and the absorbent layer is accommodated in the closed space, it can be understood that the top layer 10 and the bottom layer 40 can also be combined into other shapes along the outer peripheral edge 101, such as rectangular, rounded rectangular, oval, etc., which will not be described here.

[0062] The combination of the outer peripheral edge 101 means that the combined top layer 10 and bottom layer 40 are connected to form a whole, which can usually be formed by heat melting or bonding, wherein the heat melting can be achieved by heating the material itself to its melting point temperature, locally melting, and then forming a connection after solidification, or by applying external energy such as ultrasonic waves to the material to locally melt the material at a high temperature, and then forming a connection after solidification.

[0063] Further, the absorbent core 20 and the bottom layer 40 further comprise an isolation layer 30, which can also be used to prevent liquid penetration, i.e., the isolation layer 30 is also a water-repellent material, specifically, PE film, SMS non-woven fabric, etc.

[0064] Further, the isolation layer 30 comprises a main body portion 31 between the absorbent core 20 and the bottom layer 40, a covering portion 32 covering the absorbent core 20, and a connecting portion 33 connecting the main body portion 31 and the covering portion 32, it can be understood that since the apertures between the upper absorbent layer 21 and the main absorbent layer 22 are relatively large, by providing the covering portion 32 and the connecting portion 33, it can prevent the emulsion from flowing out through the bonding surface between the main absorbent layer 22 and the upper absorbent layer 21.

[0065] Further, the main body portion 31 and the covering portion 32 are integrally formed, i.e., the covering portion 32 is formed by folding the isolation layer 30 from the main body portion 31 towards the top layer 10.

[0066] Further, the covering portion 32 and the main body portion 31 form a pocket shape, and a containing space is formed between the main body portion 31 and the covering portion 32, and the absorbent core 20 is inserted into the containing space.

[0067] It can be understood that the cover part 32 is located on the side away from the main absorption area 221 and is arranged opposite to the main absorption area 221, and in addition, the cover part 32 is located between the surface layer 10 and the absorption core 20.

[0068] Further, the area of the cover part 32 is less than 1 / 3 of the area of the upper absorption layer 21.

[0069] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A breast pad, comprising a body, characterized in that, The main body includes a top layer, a bottom layer, and an absorbent core sandwiched between the top layer and the bottom layer. The top layer and the bottom layer are joined along their outer periphery. The absorbent core includes an upper absorbent layer and a main absorbent layer stacked together. The main absorbent layer includes a main absorbent area. The upper absorbent layer also includes a notch that forms a receiving area. The main absorbent area is located in the receiving area. The upper absorbent layer and the main absorbent layer include a first joint. The first joint joins the upper absorbent layer and the main absorbent layer by pressing. The upper absorbent layer is crescent-shaped or U-shaped, and two opposing protrusions are formed on both sides of the notch. The two protrusions are symmetrically arranged.

2. The breast pad as described in claim 1, characterized in that, The density of the upper absorption layer is less than that of the main absorption layer.

3. The breast pad as described in claim 1, characterized in that, The first bonding portion is disposed along the edge of the upper absorption layer.

4. The breast pad as described in claim 3, characterized in that, The upper absorption layer also includes a groove, which is linear and extends from the direction adjacent to the main absorption region toward the direction away from the main absorption region.

5. The breast pad as described in claim 4, characterized in that, The pressure grooves are multiple, and they are arranged radially around the main absorption area.

6. The breast pad as described in claim 5, characterized in that, The body also includes an isolation layer, which includes a main body portion located between the absorbent core and the bottom layer, a cover portion covering the absorbent core, and a connecting portion connecting the main body portion and the cover portion.

7. The breast pad as described in claim 6, characterized in that, The main body and the cover are molded as one piece.

8. The breast pad as described in claim 7, characterized in that, The covering part and the main body part form a pocket shape, and an accommodating space is formed between the main body part and the covering part, and the absorbent core is inserted into the accommodating space.

Citation Information

Patent Citations

  • Breast pad and manufacturing device

    CN111529206A

  • Breast pad capable of preventing milk from flowing

    CN116531174A

  • Breast pad

    CN115670796A

  • Warming article

    JP2019042168A