Breast pad

Abstract

The breast pad comprises a body, the body comprises a surface layer, a bottom layer and an absorption core layer clamped between the surface layer and the bottom layer, the surface layer and the bottom layer are combined along the peripheral edge, the absorption core layer comprises an upper absorption layer and a lower absorption layer, and the upper absorption layer and the lower absorption layer are arranged in a stacked mode. The upper absorption layer further comprises a main absorption area, a notch part located on the upper side of the main absorption area and a lower absorption area located on the lower side of the main absorption area, and the lower absorption area and the upper absorption layer further comprise at least one protruding part and an annular groove surrounding the periphery of the protruding part; through the arrangement, the use comfort can be further improved, the probability of layering between the upper absorption layer and the lower absorption layer is reduced, a concave-convex circulation channel is formed in the absorption core layer, the colloid blocking effect is reduced, and therefore the absorption rate is increased, and the absorption effect is improved. In addition, functional parts such as a wool fat layer can be arranged at the corresponding positions of the notch part to achieve multiple functions.

Description

Technical Field

[0001] The present invention relates to the field of absorbent products, and in particular to a breast pad. Background Art

[0002] Breast pads are a type of maternal and infant product used to prevent milk from leaking out of breastfeeding women. As people's living standards continue to improve, they are receiving more and more attention.

[0003] Existing breast pads usually include an absorption layer with a uniformly distributed polymer water-absorbing material (SAP). The absorption layer has a porous network structure with a large number of pores. On the one hand, the emulsion is absorbed by the strong liquid absorption ability of the polymer water-absorbing material, and on the other hand, the emulsion is conducted and contained through the pores. However, in the existing structure, since the position of the emulsion overflow site corresponds to the center of the breast pad, the absorption capacity of the center may be insufficient. In addition, this structure still has insufficient absorption capacity when dealing with high-viscosity emulsions, such as colostrum, and the absorption capacity is also insufficient when dealing with multiple milk overflows.

[0004] In order to cope with the insufficient absorption capacity at the center position, CN117064643A proposes to use a stacked upper absorption layer and a lower absorption layer, and to provide a notch in the upper absorption layer, to form a accommodating area in the notch, and to set the main absorption area in the accommodating area, so that the gushing lotion can enter the fitting area and be fully absorbed, and to reduce back seepage, reduce the pressure on the nipple, improve comfort and improve the absorption capacity of high-viscosity lotion. In further improvement, document CN118105241A proposes to set a functional component in the accommodating area corresponding to the notch, so that the breast pad has both cleaning and normal breast pad functions.

[0005] However, for the breast pad shown in CN117064643A, since the stacked upper absorption layer and the lower absorption layer are combined in the form of existing guide grooves, stratification or separation is easy to occur, resulting in reduced absorption efficiency of the lotion. At the same time, when the main absorption area is set in the accommodating area, after the breast pad is bent into an arch shape, a suspended feeling is easy to appear on the lower side, resulting in insufficient comfort in use.

[0006] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0007] To this end, the present invention provides a breast pad to solve the above technical problems.

[0008] A breast pad includes a main body, wherein the main body includes a surface layer, a bottom layer and an absorbent core layer sandwiched between the surface layer and the bottom layer, wherein the surface layer and the bottom layer are combined along the outer peripheral edge, and the absorbent core layer includes an upper absorbent layer and a lower absorbent layer stacked together, wherein the upper absorbent layer also includes a main absorbent area and a notch located on the upper side of the main absorbent area, and a lower absorbent area located on the lower side of the main absorbent area, wherein in the lower absorbent area, the upper absorbent layer also includes at least one protrusion and an annular groove surrounding the protrusion.

[0009] Wherein, the protrusions are in the shape of long strips and are radially arranged around the main absorption area.

[0010] Wherein, the upper absorption layer includes an upper base surface, the edge line of the projection contour of the protrusion on the upper base surface is defined as the outer edge line, and the distance between the annular groove and the outer edge line is 1 to 4 mm.

[0011] The protruding portion includes a head end, a tail end, and a middle portion connecting the head end and the tail end, and the height of the protruding portion gradually increases from the head end to the tail end.

[0012] Wherein, the angle between the upper surface of the first protrusion and the upper base surface is 1° to 3°.

[0013] The middle portion is in a form where the width gradually increases from the head end to the distal end.

[0014] In which, the main body is configured to be symmetrically arranged along the first center line, the protrusion includes a first protrusion, the projection outline of the first protrusion on the upper base surface includes a second center line, the projection outline of the first protrusion on the upper base surface is symmetrical along the second center line, the second center line coincides with the first center line, and one side of the first center line includes a second protrusion and a third protrusion, wherein the second protrusion is adjacent to the first protrusion, the third protrusion is far away from the first protrusion, the first protrusion, the second protrusion and the third protrusion are equidistantly spaced, and the first protrusion, the second protrusion and the third protrusion have the same shape.

[0015] The heights of the first protruding portion, the second protruding portion and the third protruding portion increase in sequence.

[0016] Wherein, the height of the first protrusion is 0.5-1.2 mm.

[0017] The center lines of the projection contours of the first protrusion, the second protrusion and the third protrusion on the upper base surface intersect at the same point.

[0018] Beneficial effects: The embodiment of the present invention provides a breast pad, including a main body, wherein the main body includes a surface layer, a bottom layer and an absorbent core layer sandwiched between the surface layer and the bottom layer, wherein the surface layer is combined with the bottom layer along the outer peripheral edge, and the absorbent core layer includes an upper absorbent layer and a lower absorbent layer which are stacked, wherein the upper absorbent layer also includes a main absorbent area and a notch portion located on the upper side of the main absorbent area, and a lower absorbent area located on the lower side of the main absorbent area, wherein in the lower absorbent area, the upper absorbent layer also includes at least one protrusion and an annular groove arranged around the protrusion, and the above arrangement can further improve the comfort of use and reduce the probability of stratification between the upper absorbent layer and the lower absorbent layer, and form a concave and convex flow channel in the absorbent core layer to reduce the colloid blocking effect, thereby accelerating the absorption rate, and in addition, functional components such as a lanolin layer can be arranged at the corresponding position of the notch portion to realize multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of a breast pad according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the AA section; Figure 3 for Figure 2 Enlarged schematic diagram of the middle C area; Figure 4 for Figure 1 Schematic diagram of the middle CC section; Figure 5 is a three-dimensional schematic diagram of the upper absorption layer; Figure 6 for Figure 5 Schematic diagram of the middle DD section; Figure 7 is a schematic diagram of the projection profile of the first protrusion on the upper absorption layer; Description of component symbols: Main body 10; first center line 100; main absorption zone 101; upper absorption zone 102; lower absorption zone 103; surface layer 11; upper absorption layer 12; upper base surface 1200; first protrusion 121; second center line 1210; head end 1211; upper edge line 1211a; tail end 1212; lower edge line 1212a; middle part 1213; outer edge line 1214; annular groove 122; upper end 1221; second protrusion 123; third protrusion 124; lower absorption layer 13; bottom layer 14. DETAILED DESCRIPTION

[0020] Please refer to Figure 1-Figure 4 An embodiment of the present invention provides a breast pad, and the present application will be further described below with reference to the accompanying drawings.

[0021] The breast pad provided in the first embodiment of the present application includes a main body 10 , wherein the main body 10 includes a surface layer 11 , a bottom layer 14 , and an absorbent core layer sandwiched between the surface layer 11 and the bottom layer 14 .

[0022] The surface layer 11 is disposed on the side close to the user's skin. Usually, the surface layer 11 is liquid-permeable so that the lotion can pass through the surface layer 11 and then be absorbed by the absorption layer.

[0023] Since the surface layer 11 contacts the skin, it is preferred to use a low-irritation, soft material, such as a material with a unit area weight of 10 to 60 g / m 2 The sheet materials include gauze, cotton, spunlace non-woven fabric, hot air non-woven fabric and the like, more preferably, hot air non-woven fabric composed of thermoplastic synthetic fibers, as the synthetic fibers constituting the above-mentioned hot air non-woven fabric, polyolefin fibers such as polyethylene (PE) fiber and polypropylene (PP) fiber, polyester fibers, polyamide fibers such as nylon, etc. can be used, 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, these natural fibers can include wood fibers, cotton fibers, etc.

[0024] The absorbent core layer is used for absorbing lotion and is arranged between the surface layer 11 and the bottom layer 14 .

[0025] In this embodiment, the absorbent core layer includes an upper absorbent layer 12 and a lower absorbent layer 13 which are stacked. The lower absorbent layer 13 is arranged adjacent to the bottom layer 14. The upper absorbent layer 12 and the lower absorbent layer 13 are both formed by a plurality of fibers entangled and properly connected to form a three-dimensional network structure. A plurality of pores are distributed between the three-dimensional network structures, and the emulsion is diffused and contained through these pores. More specifically, the fibers may be plant fibers or synthetic fibers, and the plant fibers may be fluff pulp fibers, etc.

[0026] The bottom layer 14 is used to prevent liquid penetration and is arranged on the side away from the user's skin. The bottom layer 14 is usually made of a water-repellent material, specifically, a PE film, an SMS non-woven fabric, etc. Preferably, the bottom layer 14 allows gases such as water vapor to pass through, but liquids cannot pass through, so that the user will not feel stuffy during use.

[0027] The surface layer 11 and the bottom layer 14 are combined along the outer peripheral edge, and through the combination at the outer peripheral edge, a closed space is formed between the surface layer 11 and the bottom layer 14, and the absorbent core layer is accommodated in the closed space. It can be understood that the surface layer 11 and the bottom layer 14 can also be combined along the outer peripheral edge to form other shapes, such as a rectangle, a rounded rectangle, an ellipse, etc., which will not be repeated here.

[0028] The bonding of the peripheral edge portion refers to the bonding of the bonded surface layer 11 and the bottom layer 14 to form a whole, which can usually be formed by hot melting or bonding. Hot melting can be achieved by heating the material itself to reach its melting point, locally melting it, and solidifying it to form a connection, or by applying external energy such as ultrasound to the material, causing the material to melt locally at high temperature and solidify it to form a connection.

[0029] The upper absorption layer 12 also includes a main absorption area 101 and a notch located on the upper side of the main absorption area 101, and a lower absorption area 103 located on the lower side of the main absorption area 101, wherein the main absorption area 101 refers to the area corresponding to milk overflow. It can be understood that when the breast pad is used, the main body 10 will be attached to the breast, and the main absorption area 101 will be corresponding to the area where the nipple is located. When milk overflow occurs, this area will first contact the milk. The upper side refers to when the main body 10 is attached to the breast, the notch is located above the nipple, and the lower side refers to when the main body 10 is attached to the breast, the lower absorption area 103 is located below the nipple.

[0030] It can be understood that the notch portion makes it possible for the area corresponding to the notch portion to have only the lower absorption layer 13 but no upper absorption layer 12. In the present embodiment, the notch portion includes a lower edge line, and the lower deformation is in the shape of an arc recessed downward, so that the main body 10 has a sufficient absorption area, and at the same time makes it easier for the breast pad to bend into an arch shape and adhere to the breast, thereby absorbing the lotion.

[0031] Please refer to Figure 4-Figure 6 The upper absorbent layer 12 also includes at least one protrusion and an annular groove 122 arranged around the protrusion. It can be understood that the upper absorbent layer 12 includes an upper base surface 1200, the protrusion is raised upward from the upper base surface 1200, and the annular groove 122 is recessed downward from the upper base surface 1200. The upward protrusion refers to the protrusion in the direction toward the side of the surface layer 11, and the downward recess refers to the recess in the direction toward the bottom layer 14.

[0032] In this embodiment, the protrusion and the upper absorbent layer 12 are an integrally formed structure, so that the density of the protrusion and the upper absorbent layer 12 is basically the same, and the annular groove 122 is formed by a plurality of dot-shaped or line-shaped embossed grooves arranged adjacent to each other. It can be understood that the embossed groove applies pressure to the upper base surface 1200 through the embossed protrusion so that the upper base surface 1200 is depressed downward. It can be understood that in the process of forming the annular groove 122, the density of the corresponding area of ​​the annular groove 122 is increased, and the diameter of the capillary is reduced, that is, the capillary action in the corresponding area of ​​the annular groove 122 is increased. On the other hand, By setting the annular groove 122, the upper absorbent layer 12 and the lower absorbent layer 13 are joined in the area corresponding to the annular groove 122, thereby reducing the probability of delamination between the upper absorbent layer 12 and the lower absorbent layer 13. The joining refers to a non-fixed connection formed by entanglement of fibers between the upper absorbent layer 12 and the lower absorbent layer 13. In the joining area, there is still capillary action between the upper absorbent layer 12 and the lower absorbent layer 13, so that the emulsion can diffuse along the direction of the annular groove 122, and diffuse toward the upper absorbent layer 12 and the lower absorbent layer 13 on the upper and lower sides of the annular groove 122.

[0033] Furthermore, an edge joint is provided along the edge of the upper absorbent layer 12, and the upper absorbent layer 12 and the lower absorbent layer 13 are joined by the edge joint and the annular groove 122, so that the upper absorbent layer 12 and the lower absorbent layer 13 can be fixed more stably, thereby reducing the occurrence of stratification or errors after liquid absorption. It can be understood that the edge joint is also implemented by providing adjacently arranged pressed grooves on the edge of the upper absorbent layer 12. Furthermore, it should be avoided to provide an adhesive or form a weld between the upper absorbent layer 12 and the lower absorbent layer 13, so that there is an emulsion flow channel between the interface of the upper absorbent layer 12 and the lower absorbent layer 13.

[0034] Furthermore, the protrusions are in the shape of long strips and are radially arranged around the main absorption area 101 .

[0035] Furthermore, the main body 10 also includes a left side area and a right side area, and the left side area and the right side area are symmetrically arranged. More specifically, the main body 10 is configured to be symmetrically arranged along the first center line 100. In the present embodiment, there are 5 protrusions, and the area formed by the 5 protrusions is symmetrically arranged along the first center line 100. It can be understood that in other embodiments, other numbers of protrusions and annular grooves 122 may also be set.

[0036] Further, for the convenience of description, the protrusion passing through the first center line 100 is called the first protrusion 121, the protrusion located on the left side of the main body 10 and adjacent to the first protrusion 121 is called the second protrusion 123, and the protrusion located on the left side of the main body 10 and away from the first protrusion 121 is called the third protrusion 124. It can be understood that the first protrusion 121, the second protrusion 123 and the third protrusion 124 are equidistantly arranged, and the shape of each protrusion is the same. The same shape means that the projection shape and size of each protrusion on the upper base surface are the same and the height of each protrusion is the same.

[0037] Furthermore, the heights of the first protrusion 121, the second protrusion 123 and the third protrusion 124 are increased sequentially, so that after forming an arch shape, the first protrusion 121, the second protrusion 123 and the third protrusion 124 can provide more comfortable support and coverage for the lower side of the breast.

[0038] The study also found that since the first protrusion 121, the second protrusion 123 and the third protrusion 124 are arranged at intervals, an air flow channel is formed between the first protrusion 121, the second protrusion 123 and the third protrusion 124, which reduces the stuffiness of the breast pad after wrapping the breast. Furthermore, the height of the first protrusion 121 is greater than or equal to 0.4 mm, but in order to prevent the lotion from flowing through the corresponding interval position on the surface layer 11, the height of the first protrusion 121 should not be greater than 3 mm. Furthermore, the appropriate height of the first protrusion 121 is 0.5-1.2 mm, and the height is an average height.

[0039] In further research, it was found that the above settings also brought the following characteristics: First, by providing the protrusion, when there is some lotion, especially the lotion gushing or overflowing, the protrusion forms a blocking effect, and the lotion is absorbed at the protrusion to prevent the lotion from flowing to a larger area or onto the clothes.

[0040] Second, when the emulsion diffuses along the interface between the upper absorption layer 12 and the lower absorption layer 13, the diffusion is accelerated in the annular groove 122 where the capillary is smaller. The protrusion inside the annular groove 122 has a larger absorption volume, which helps the absorption of the emulsion. At the same time, since the height of this area is increased, when the emulsion is squeezed, the length of the back-seepage path is increased during back-seepage, thereby reducing the back-seepage. Further research found that this setting reduces the back-seepage amount by an average of 5.6% compared with existing breast pads.

[0041] 3. By adopting this method, a flow channel is formed inside the absorbent core layer, avoiding the colloid blockage phenomenon that occurs in the corresponding position of the absorbent core layer in the transverse guide groove set in the prior art, so that the emulsion can flow quickly in the absorbent core layer, and at the same time, the absorption space is larger, which accelerates the absorption rate.

[0042] For further information, please refer to Figure 7 The first protrusion 121 includes a head end 1211, a tail end 1212 and a middle portion 1213 connecting the head end 1211 and the tail end 1212. The head end 1211 is the end of the first protrusion 121 facing the main absorption area 101, and the tail end 1212 is the end away from the main absorption area 101. The height of the first protrusion 121 gradually increases from the head end 1211 to the tail end 1212, so that its upper surface presents an inclined surface with the tail inclined upward, so that after the main body 10 forms an arch shape, it can better fit the breast, thereby improving comfort.

[0043] Furthermore, the angle between the upper surface of the first protrusion 121 and the upper base surface 1200 is 1° to 3°.

[0044] Furthermore, the middle portion 1213 is in a form in which the width gradually increases from the head end 1211 toward the distal end.

[0045] Furthermore, the projection contour of the first protrusion 121 on the upper base surface 1200 is in the form of semicircles at both ends and a trapezoid in the middle. More specifically, the edge line of the projection contour of the first protrusion 121 on the upper base surface 1200 is called the outer edge line 1214, and the annular groove 122 and the outer edge line 1214 are equidistantly arranged.

[0046] Furthermore, the spacing between the annular groove 122 and the outer edge line 1214 is 1 to 4 mm, that is, the spacing between the annular groove 122 and the outer edge line 1214 should be less than or equal to the fiber length, so that a synergistic effect is formed between the annular groove 122 formed by pressing and the protrusion, thereby increasing the absorption rate and reducing re-seepage. More specifically, since coniferous wood fibers are usually used to form the upper absorption layer 12, and the average length of coniferous wood fibers is usually 3.5 to 4 mm, the maximum length between the annular groove 122 and the outer edge line 1214 should be less than 4 mm. When the spacing between the annular groove 122 and the outer edge line 1214 is too small, the edge area of ​​the protrusion is also compacted, which reduces the absorption rate. That is, the spacing between the annular groove 122 and the outer edge line 1214 should be set to be greater than or equal to 1 mm.

[0047] Furthermore, the annular groove 122 includes an upper end 1221, and the upper end 1221 is the point closest to the main absorption zone, and the distance between the upper end 1221 and the main absorption zone is 3 to 8 mm.

[0048] Furthermore, the outer edge line 1214 includes a projection contour line of the head end 1211 on the upper base surface 1200 and a projection contour line of the tail end 1212 on the upper base surface 1200. For the convenience of description, the projection contour line of the head end 1211 on the upper base surface 1200 is called the upper edge line 1211a, and the projection contour line of the tail end 1212 on the upper base surface 1200 is called the lower edge line 1212a. Then, the upper edge line 1211a and the lower edge line 1212a are both arcs.

[0049] Furthermore, the projection contour of the first protrusion 121 on the upper base surface 1200 includes a second center line 1210 . It can be understood that the projection contour of the first protrusion 121 on the upper base surface 1200 is symmetrical along the second center line 1210 , and the second center line 1210 coincides with the first center line 100 .

[0050] Furthermore, the center lines of the projection contours of the protrusions on the upper base surface 1200 intersect at the same point.

[0051] Furthermore, the density of the upper absorbent layer 12 is lower than that of the lower absorbent layer 13, so that the upper absorbent layer 12 has a better touch, while the lower absorbent layer 13 has a better absorption performance. In a specific embodiment, the lower absorbent layer 13 is provided with SAP, while the upper absorbent layer 12 is not provided with SAP.

[0052] In a specific embodiment, the lower absorbent layer 13 is dust-free paper, the upper absorbent layer 12 is a core formed by entanglement of fluff pulp fibers, and the thickness of the upper absorbent layer 12 is greater than that of the lower absorbent layer 13, so that the upper absorbent layer 12 forms a better cushion layer to reduce the pressure on the nipple.

[0053] Furthermore, the main body 10 includes an upper absorption area 102 in the area corresponding to the notch, and the upper absorption area 102 can be provided with functional components. In a specific embodiment, the functional components are a lanolin layer including lanolin. When phenomena such as nipple cracking occur, the pain of the nipple can be relieved by using the functional components.

[0054] It can be understood that the functional components can be arranged on the outer side or inner side of the surface layer, the outer side refers to the side of the surface layer facing away from the absorbent core layer, and the inner side refers to the side adjacent to the absorbent core layer.

[0055] The above description is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A breast pad, comprising a body, wherein the body comprises a surface layer, a bottom layer and an absorbent core layer sandwiched between the surface layer and the bottom layer, wherein the surface layer and the bottom layer are combined along the outer peripheral edge, and the absorbent core layer comprises an upper absorbent layer and a lower absorbent layer stacked, characterized in that: The upper absorption layer also includes a main absorption area and a notch portion located on the upper side of the main absorption area, and a lower absorption area located on the lower side of the main absorption area, wherein in the lower absorption area, the upper absorption layer also includes at least one protrusion and an annular groove surrounding the protrusion, and the main body includes an upper absorption area in the area corresponding to the notch portion, and the upper absorption area is provided with functional components.

2. The breast pad according to claim 1, wherein: The protrusions are in the shape of long strips and are radially arranged around the main absorption area.

3. The breast pad according to claim 2, characterized in that The upper absorption layer comprises an upper base surface, the edge line of the projection contour of the protrusion on the upper base surface is defined as the outer edge line, and the distance between the annular groove and the outer edge line is 1 to 4 mm.

4. The breast pad according to claim 2, characterized in that The protruding portion comprises a head end, a tail end, and a middle portion connecting the head end and the tail end, and the height of the protruding portion gradually increases from the head end to the tail end.

5. The breast pad according to claim 4, characterized in that The included angle between the upper surface of the first protrusion and the upper base surface is 1° to 3°.

6. The breast pad according to claim 4, characterized in that The middle portion is in a form in which the width gradually increases from the head end to the distal end.

7. The breast pad according to claim 4, characterized in that The main body is configured to be symmetrically arranged along a first center line, the protrusion includes a first protrusion, the projection profile of the first protrusion on the upper base surface includes a second center line, the projection profile of the first protrusion on the upper base surface is symmetrical along the second center line, the second center line coincides with the first center line, and one side of the first center line includes a second protrusion and a third protrusion, wherein the second protrusion is adjacent to the first protrusion, the third protrusion is far away from the first protrusion, the first protrusion, the second protrusion and the third protrusion are equidistantly spaced, and the first protrusion, the second protrusion and the third protrusion have the same shape.

8. The breast pad according to claim 7, characterized in that The heights of the first protrusion, the second protrusion and the third protrusion increase sequentially.

9. The breast pad according to claim 7, wherein: The height of the first protrusion is 0.5-1.2 mm.

10. The breast pad according to claim 7, wherein: The center lines of the projection contours of the first protrusion, the second protrusion and the third protrusion on the upper base surface intersect at the same point.

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