Mammary gland

Abstract

The embodiment of the present application provides a breast pad, comprising a body, wherein the body comprises a surface layer, an absorbing layer and a bottom layer which are arranged in layers, the absorbing layer comprises a high polymer water-absorbing material, the absorbing layer comprises a middle part and a peripheral part surrounding the middle part, the peripheral part comprises a plurality of main indentations extending radially from the middle part to the outside, a first area is arranged between adjacent main indentations, a pair of side indentations extending from the main indentations to the direction away from the main indentations are arranged in the first area, a second area is arranged between the pair of side indentations, and a functional material is arranged in the second area, in the above manner, on the one hand, a three-dimensional shape of a bowl can be easily formed; on the other hand, the functional material can be released stably while being released in a delayed manner; on the third hand, the functional material cannot contact the nipple area, so that the risk of being sucked in is reduced; and on the fourth hand, the breast pad can quickly absorb milk.

Description

Technical Field

[0001] This invention relates to a breast pad. Background Technology

[0002] Breast pads are a type of maternity and baby product used to prevent breast milk leakage during lactation. As people's living standards continue to improve, they are becoming increasingly widespread.

[0003] Breast pads are typically formed by layers of a top layer, an absorbent layer, and a bottom layer. The absorbent layer contains superabsorbent polymer (SAP) to absorb and store water. Furthermore, with rising living standards, people desire breast pads with more functions or the addition of functional ingredients. For example, patent document CN116473756A, entitled "Breast Pads and Their Usage Method," proposes the inclusion of microcapsules, releasing a cleanser by squeezing the microcapsules to cleanse the skin. Patent document CN115670796A, also entitled "Breast Pads," proposes adding functional ingredients such as lanolin to the surface of the breast pad to prevent cracking.

[0004] However, in practice, it has been found that for some functional components, users prefer them to be released relatively late, such as cleaning components, or functional components that can be separated from SAP to avoid mutual interference. However, the existing setup cannot meet these requirements at the same time. Summary of the Invention

[0005] Therefore, the present invention provides a breast pad to solve the above-mentioned technical problems.

[0006] A breast pad includes a body, which comprises a top layer, an absorbent layer, and a bottom layer stacked together. The absorbent layer comprises a superabsorbent polymer material and includes a central region and a peripheral region surrounding the central region. The peripheral region includes multiple main indentations extending radially outward from the central region. A first region is provided between adjacent main indentations. The first region is provided with a pair of side indentations extending away from the main indentations. A second region is provided between the pair of side indentations. A functional material is provided in the second region.

[0007] The central region also includes a central diffusion region, and the main indentation is connected to the central diffusion region.

[0008] The main indentations are arranged in a circular array around the central diffusion area.

[0009] The main indentation includes a proximal end communicating with the central diffusion region and a distal end opposite to the central diffusion region. The lateral indentations are located at the distal end, and a pair of lateral indentations are arranged in parallel at intervals.

[0010] The side indentation is inclined to the main indentation, and in the pair of angles formed between the side indentation and the main indentation, the angle of the adjacent central region is greater than 90°.

[0011] Each main indentation has a pair of side indentations on both sides, and the side indentations on both sides of the main indentation are symmetrically arranged. A second zone is symmetrically formed on both sides of each main indentation.

[0012] Among them, the side indentations on the same first area of ​​the adjacent main indentations extend in a direction that approaches each other, and the side indentations on the same first area of ​​the adjacent main indentations are in a disconnected state.

[0013] The depth of the central diffusion zone is less than the depth of the main indentation.

[0014] The functional material is a water-soluble material or a water-release material.

[0015] The functional material is a water-release material, and the water-release material is a microcapsule with sodium alginate as the wall material.

[0016] Beneficial Effects: This invention provides a breast pad, comprising a body, which includes a top layer, an absorbent layer, and a bottom layer stacked together. The absorbent layer comprises a superabsorbent polymer material and includes a central region and a peripheral region surrounding the central region. The peripheral region includes multiple radially extending main indentations from the central region outwards. A first region is defined between adjacent main indentations. The first region has a pair of lateral indentations extending away from the main indentations. A second region is defined between the pair of lateral indentations. A functional material is disposed in the second region. Using the above method, firstly, a bowl-shaped three-dimensional form can be easily formed; secondly, the release of the functional material can be delayed while ensuring stable release; thirdly, the functional material will not come into contact with the nipple area, reducing the risk of inhalation; and fourthly, it can quickly absorb lotion. Attached Figure Description

[0017] Figure 1 A front view of a breast pad according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the AA section;

[0019] Component descriptions in the diagram:

[0020] Body 10; Surface layer 11; Absorbing layer 12; Bottom layer 13; Central diffusion zone 21; Main indentation 22; Distal end 220; First side indentation 221; Second side indentation 222; First zone 201; Second zone 202. Detailed Implementation

[0021] Please refer to the reference. Figures 1-2 This invention provides a breast pad, including a body 10, wherein the body 10 includes a surface layer 11, a bottom layer 13 and an absorbent layer 12 sandwiched between the surface layer 11 and the bottom layer 13.

[0022] The surface layer 11 is disposed on the side close to the user's skin. Since it is in contact with the skin, it is preferably made of a low-irritation, soft sheet material, such as gauze, cotton, spunlace nonwoven fabric, or hot-air nonwoven fabric with a unit area weight of 10-60 g / m2. More preferably, it is a hot-air nonwoven fabric made of thermoplastic synthetic fibers. As the synthetic fibers constituting the hot-air nonwoven fabric, polyethylene (PE) fibers, polypropylene (PP) fibers, and other polyolefin fibers, polyester fibers, nylon and other polyamide fibers can be used. In some optional embodiments, natural fibers or viscose fibers may also be added to further reduce skin irritation. These natural fibers may include wood fibers, cotton fibers, etc.

[0023] In another embodiment, the surface layer 11 can be further improved to be more skin-friendly. For example, the side of the surface layer 11 facing the wearer's face can be made fluffy. Specifically, this includes using a brush to roll or flat brush the surface of the surface layer 11 to make the surface of the surface layer 11 fluffy, thereby having a more fluffy surface.

[0024] The bottom layer 13 is positioned away from the user's skin. To prevent liquid from seeping through the bottom layer 13 and contaminating the user's clothing, the bottom layer 13 is typically made of a water-repellent material, such as a PE film or SMS non-woven fabric.

[0025] The absorbent layer 12 is disposed between the surface layer 11 and the bottom layer 13. Specifically, the absorbent layer 12 is a three-dimensional network structure formed by several entangled fibers connected appropriately. Several pores are distributed between the three-dimensional network structure, and a superabsorbent polymer material is also contained between the three-dimensional network structure. Liquid can be absorbed and diffused through these pores, and liquid can be absorbed and retained through the superabsorbent polymer material. The fibers can be fluff pulp.

[0026] Specifically, the fluff pulp is either straw pulp or wood pulp, preferably wood pulp. Because the fibers in straw pulp are shorter and have poor flowability, while the fibers in wood pulp are longer and have better flowability.

[0027] The absorbent layer 12 is used to absorb emulsion and is disposed between the top layer 11 and the bottom layer 13. Specifically, the absorbent layer 12 is a three-dimensional network structure formed by several entangled fibers appropriately connected. Several pores are distributed between the three-dimensional network structure and a superabsorbent polymer is contained between the three-dimensional network structure. Liquid can be absorbed and diffused through these pores, and liquid can be absorbed and retained through the superabsorbent polymer. The fibers can be fluff pulp.

[0028] The surface layer 11, the absorbent layer 12, and the bottom layer 13 are stacked, and the surface layer 11 and the bottom layer 13 are joined along the outer periphery. Through the joining at the outer periphery, a closed space is formed between the surface layer 11 and the bottom layer 13, and the absorbent layer 12 is accommodated in the closed space. It can be understood that the surface layer 11 and the bottom layer 13 can be joined along the outer periphery to form a suitable shape, such as a circle, a waist shape, a rectangle, a rounded rectangle, an ellipse, etc., which will not be elaborated here.

[0029] The aforementioned combination refers to the connection of materials to form a whole. Typically, this can be achieved through heat fusion or bonding. Heat fusion involves heating the material itself to its melting point, causing it to melt locally and solidify to form a connection. Alternatively, external energy, such as ultrasound, can be applied to the material to cause localized high-temperature melting, which then solidifies to form a connection.

[0030] The absorbent layer 12 includes a central region and a peripheral region. The central region is provided corresponding to the part of the emulsion that overflows, such as the nipple. In this embodiment, the absorbent layer 12 is circular, and the central region is the area near the center of the circle. In other embodiments, the absorbent layer 12 may also be in other shapes, such as square or elliptical, and the peripheral region is provided around the central region.

[0031] Furthermore, the central region includes a central diffusion region 21. Specifically, the absorption layer 12 includes a first surface and a second surface. The central diffusion region 21 is a groove-shaped depression extending from the first surface to the second surface, resulting in a higher density in the central diffusion region 21 compared to other regions, such as the first region 201. It is also understood that in the region corresponding to the central diffusion region 21, the pores formed by the fibers in the absorption layer 12 are smaller. Since the diffusion of liquid in the absorption layer 12 is a capillary phenomenon, the capillary phenomenon follows the following formula:

[0032]

[0033] In the formula, h represents the height or width of liquid wetting, γ represents the surface tension, θ represents the contact angle, ρ represents the liquid density, g represents the gravitational acceleration, and r represents the radius of the capillary tube.

[0034] Corresponding to the absorbent layer 1210, h can represent the liquid wetting or diffusion capacity or speed; that is, the larger h is, the easier or faster the liquid wets the tissue paper. r can represent the pore size in the absorbent layer 12. In the same specific environment, γ, θ, ρ and g can all be considered constant. Therefore, the speed of liquid diffusion is determined only by r, that is, the pore size in the absorbent layer 12.

[0035] Furthermore, the central diffusion region 21 has a centrally symmetrical shape. Preferably, the central diffusion region 21 is circular and has an outer diameter of 8-20 mm.

[0036] The surrounding area includes multiple radial main indentations 22 extending outward from the central area, and the main indentations 22 are in a straight line.

[0037] Furthermore, one end of the main indentation 22 is connected to the central diffusion region 21, and the other end extends away from the central diffusion region 21. For ease of description, the end connected to the central diffusion region 21 is called the proximal end, and the end away from the central diffusion region 21 is called the distal end 220.

[0038] Furthermore, the main indentation 22 is arranged in a circular array around the central diffusion region 21.

[0039] Furthermore, the main indentation 22 has three to six lines.

[0040] Adjacent main indentations 22 are separated by a first region 201, wherein the first region 201 is provided with a pair of side indentations extending away from the main indentations 22, and a second region 202 is provided between the pair of side indentations.

[0041] Understandably, the first region 201 is fan-shaped, and the side indentations and main indentations 22 extend towards the center of the first region 201. A pair of side indentations are located on the same side of the main indentation 22, so that the pair of side indentations and the main indentation 22 form a C-shape. That is, the second region 202 is the area enclosed by a pair of side indentations and the main indentation 22.

[0042] Understandably, a pair of side indentations are located at the distal end 220 of the main indentation 22, and the pair of side indentations are spaced apart.

[0043] Functional materials are provided in the second zone 202. These functional materials can be water-soluble or water-release materials. Specifically, the water-release material is a microcapsule with a water-soluble wall material. It is understood that the microcapsule includes a wall material and a core material. The wall material is water-soluble; when the microcapsule comes into contact with water, the wall material dissolves, and the core material is released. Specifically, the core material can be a humectant or an antibacterial agent. The humectant can mainly include glycerol, diglyceride, polyethylene glycol, propylene glycol, hexanediol, etc. Polyols such as propylene glycol; sugars such as sorbitol, glucose, xylitol, maltitol, and mannitol; the antibacterial agent is preferably a natural antibacterial agent, specifically including seaweed extract, aloe vera extract, amino acids, sodium lactate, urea, hyaluronic acid, sodium pyrrolidone carboxylate, ceramide, collagen, chitin derivatives, mucopolysaccharides, chondroitin sulfate, lactic acid and its salts (such as sodium lactate), corn steep liquor, hydrolyzed starch products such as urea, triglycerides, palmitic acid, myristic acid, stearic acid, silicone, sodium pyrrolidone carboxylate, etc.

[0044] Furthermore, the core material may also include fragrances, etc.

[0045] Furthermore, the wall material is sodium alginate.

[0046] Understandably, the above settings can give the breast pads the following effects:

[0047] 1. The main indentation 22 is arranged radially and surrounds the central area, making the breast pad easily present a bowl-shaped three-dimensional form with a concave center and raised periphery. In particular, when a central diffusion area 21 is also provided and the main indentation 22 is formed by indentation at the same time, the periphery of the absorbent layer 12 will naturally rise along both sides of the main indentation 22 to form a bowl-shaped three-dimensional form.

[0048] Second, a lateral indentation is set at the distal end 220 of the main indentation 22, so that the second zone 202 is set at the distal end 220. This allows the emulsion to reach this area for a period of time, that is, the functional material is not released immediately, but is released after a period of time. This prolongs the use time of the functional material or avoids skin irritation caused by rapid release of the functional material. When microcapsules are used, the release time will be further extended. At the same time, the infusion channel formed by the main indentation 22 and the lateral indentation allows the second zone 202 to come into contact with the emulsion, thereby enabling the functional material to be released stably.

[0049] Third, the second zone 202 is located at the distal end 220 and can only be released after the emulsion arrives, so that this part of the zone corresponds to the area away from the nipple, avoiding direct contact between the functional material and the nipple area, which could lead to the baby directly inhaling the functional material, or at least reducing the risk of the baby inhaling it.

[0050] Fourth, the main indentation 22 and the side indentation form a continuous infusion channel on the absorbent layer 12, and the emulsion will rapidly diffuse from the central region or further from the central diffusion region 21 along the direction of the main indentation 22 toward the side indentation.

[0051] Furthermore, the pair of side indentations includes a first side indentation 221 and a second side indentation 222, wherein the first side indentation 221 and the second side indentation 222 are arranged in parallel and spaced apart.

[0052] Furthermore, the distance between the first side indentation 221 and the second side indentation 222 should be greater than 5 mm so that the second area 202 has sufficient space.

[0053] Furthermore, the first side indentation 221 is a side indentation adjacent to the central region, and the distance between the first side indentation 221 and the central diffusion region 21 should be greater than 5 mm.

[0054] Furthermore, the first side indentation 221 and the second side indentation 222 are inclined to the main indentation 22 and are inclined toward the outer periphery, such that in the pair of angles formed between the first side indentation 221 and the main indentation 22, the angle of the adjacent central area is greater than 90°. This arrangement makes it easier for the breast pad to form a three-dimensional shape.

[0055] In addition, the lengths of the first side indentation 221 and the second side indentation 222 should be greater than 5 mm.

[0056] Furthermore, each main indentation 22 is provided with a first side indentation 221 and a second side indentation 222 on both sides. At the same time, the first side indentation 221 and the second side indentation 222 on both sides of the main indentation 22 are symmetrically arranged, so that a second area 202 is symmetrically formed on both sides of each main indentation 22, thereby enabling the functional material to be distributed in a larger area.

[0057] Understandably, the first side indentations 221 on the same first area 201 of the adjacent main indentations 22 extend toward each other. The first side indentations 221 on the same first area 201 of the adjacent main indentations 22 should be in a disconnected state, that is, the two first side indentations 221 are not connected. In this case, on the one hand, a slightly raised area is formed between the two first side indentations 221, which is convenient for forming a three-dimensional shape. On the other hand, the second area 202 formed is in an open state, which is convenient for the functional material set in the second area 202 to be released relatively slowly.

[0058] Furthermore, the functional material is mainly located in the second zone 202, and "mainly" means that it accounts for more than 60% of the material's mass.

[0059] Furthermore, the superabsorbent polymer material is mainly disposed in the first region 201 excluding the second region 202. In this case, the superabsorbent polymer material is separated from the functional material and can first contact and absorb the emulsion.

[0060] Furthermore, please also refer to Figure 2 The depth of the central diffusion zone 21 is less than the depth of the main indentation 22, so that the density of the corresponding area of ​​the central diffusion zone 21 is less than the density of the corresponding area of ​​the main indentation 22. Correspondingly, the diameter of the pores in the corresponding area of ​​the central diffusion zone 21 will be greater than the diameter of the pores in the corresponding area of ​​the main indentation 22, so that the emulsion can diffuse more quickly along the central diffusion zone 21 and the main indentation 22.

[0061] Furthermore, the depth of the lateral indentation is greater than the depth of the main indentation 22.

[0062] Furthermore, the depths of the central diffusion zone 21, the main indentation 22, and the lateral indentations exhibit either stepped or continuous variations.

[0063] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A breast pad, comprising a body, said body comprising a surface layer, an absorbent layer including a first surface and a second surface, and a bottom layer, said absorbent layer comprising a superabsorbent polymer material, characterized in that, The absorbent layer includes a central region and a peripheral region surrounding the central region. The peripheral region includes multiple main indentations extending radially outward from the central region. A first region is defined between adjacent main indentations. The first region has a pair of lateral indentations extending away from the main indentations. A second region is defined between the pair of lateral indentations. A functional material, which is a water-soluble or water-release material, is provided in the second region. The pair of lateral indentations are located on the same side of the main indentations, forming a C-shape with the main indentations. The second region is open. The central region also includes a central diffusion region. The central diffusion region is a groove-shaped depression extending from the first surface to the second surface, resulting in a higher density in the central diffusion region compared to other regions. The main indentations are connected to the central diffusion region. The main indentations include a proximal end connected to the central diffusion region and a distal end opposite to the central diffusion region. The lateral indentations are located at the distal end.

2. The breast pad as described in claim 1, characterized in that, The main indentations are arranged in a circular array around the central diffusion area.

3. The breast pad as described in claim 1, characterized in that, The two lateral indentations are arranged in parallel intervals.

4. The breast pad as described in claim 3, characterized in that, The side indentation is inclined to the main indentation, and in the pair of angles formed between the side indentation and the main indentation, the angle of the adjacent central area is greater than 90°.

5. The breast pad as described in claim 3, characterized in that, Each main indentation has a pair of side indentations on both sides. At the same time, the side indentations on both sides of the main indentation are symmetrically arranged, and a second zone is symmetrically formed on both sides of each main indentation.

6. The breast pad as described in claim 5, characterized in that, The lateral indentations on adjacent main indentations located in the same first zone extend toward each other, and the lateral indentations on adjacent main indentations located in the same first zone are in a disconnected state.

7. The breast pad as described in claim 1, characterized in that, The depth of the central diffusion zone is less than the depth of the main indentation.

8. The breast pad as described in claim 1, characterized in that, The functional material is a water-release material, and the water-release material is a microcapsule with sodium alginate as the wall material.

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