CN112426273A

CN112426273A - Breast pad

Info

Publication number: CN112426273A
Application number: CN202110057592.0A
Authority: CN
Inventors: 夏双印; 陈广岩; 刘立坚; 沈欢
Original assignee: Shanghai Foliage Industry Co ltd
Current assignee: Shanghai Foliage Industry Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-03-02
Anticipated expiration: 2041-01-15

Abstract

The embodiment of the invention provides a breast pad, which comprises a surface layer, an absorption core layer and a bottom layer, wherein the breast pad comprises at least one folding part, two ends of the folding part are fixed, the absorption core layer comprises a core body and a coating layer covered on the core body, the core body comprises a network-shaped structural body formed by fibers and a high polymer water absorption material, the density of the coating layer is greater than that of the network-shaped structural body, the absorption core body comprises a folding end part at the folding part, the core body positioned at the folding end part comprises a first edge, the coating layer at the folding end part comprises a first end part, the first end part protrudes out of the first edge to realize that the coating layer forms a barrier for the upper side and the lower side of the network-shaped structural body, and the coating layer protruding out of the first edge forms a barrier for the side of the network-shaped structural body, so that the high polymer water absorption material is not, the edge area is fixed, so that the breast pad forms a cup shape or a hemisphere shape and forms good adhesion with the breast.

Description

Breast pad

Technical Field

The invention relates to a breast pad.

Background

Breast pad is a mother and infant's articles for use that prevent lactation woman's emulsion from spilling over, along with the continuous improvement of people's living standard, it is more and more extensive, current breast pad is multilayer structure mostly, if including surface course, absorption sandwich layer and bottom, the layer of bottom for keeping away from user's skin one side, the surface course is the layer that is close to user's skin one side, the setting of absorption sandwich layer is between surface course and bottom, form porous network column structure by fluff pulp fibre, it has the polymer material that absorbs water to distribute between the fibre.

At present, in order to achieve a light packaging form or to form a three-dimensional form, the prior art nursing pad often uses a folding form, please refer to fig. 1, which shows a folding form, after folding, the facing layer, the absorbent layer, is turned over, but after turning, the fibres at the folds 11 are pressed inwards, and the fibres of the first zone 12 adjacent to the fold 11 are forced outwards by the fibres at the fold 11, causing the gaps between the fibres in the first zone 12 to become larger, the first zone 12 appearing as a whole bulged, since the gaps between the fibers at the first region 12 become larger and the high molecular weight water absorbent material 13 located between the fibers easily leaks or comes off from the region, this in turn leads on the one hand to an impaired absorption capacity and on the other hand to the detachment of the polymeric absorbent material 13, such as further through the topsheet, possibly leading to a risk of contact or ingestion by the baby.

Disclosure of Invention

Therefore, the present invention provides a breast pad to solve the above technical problems.

A breast pad, comprising a surface layer, an absorption core layer and a bottom layer which are arranged in a stacking way, is characterized in that the breast pad comprises a functional area and a non-functional area surrounding the functional area, the breast pad comprises at least one folded part, the folded part extends from the center of the functional area to the non-functional area at two ends, the folded part extending to the non-functional area is fixed to form a fixed end, the absorption core layer comprises a core body and a coating layer covering the core body, the core body comprises a network structure body formed by fibers and a high polymer water absorption material, wherein the density of the covering layer is greater than that of the network-like structure, the absorbent core includes folded end portions at the folded portions, the core body at the folded end part comprises a first edge, and the covering layer at the folded end part comprises a first end part which protrudes out of the first edge.

Further, a bonding region is disposed between the end of the structure and the first cladding, the bonding region having a density greater than the density of the network-like structure, the bonding region including an adhesive, the adhesive extending to the first end.

Further, the network structure includes a structure end, the first edge is disposed on the structure end, and the structure end includes a first high density region having a density greater than a density of the network structure.

Furthermore, the first high-density area is arranged on the side surface of the end part of the structure body facing the covering layer, the height of the first high-density area is greater than or equal to 1/3 of the thickness of the net-shaped structure body, and the length of the first end part protruding out of the first edge is greater than or equal to 2 mm.

Further, the first high-density region may be formed by providing an adhesive on a side of the end portion of the structure body facing the first coating layer, at least a part of the adhesive penetrating in a thickness direction of the network-like structure body, and forming the first high-density region after the adhesive is cured, or forming the network-like structure body by applying pressure to the end portion of the structure body so that a density of at least a part of a region of the end portion of the structure body is greater than a density of the network-like structure body, thereby forming the first high-density region, or, when the network-like structure body is formed, the end portion of the structure body has a wind pressure greater than that of the network-like structure body.

Further, the step of applying pressure to the end of the structural body to enable the density of at least part of the end of the structural body to be larger than the density of the net-shaped structural body comprises the steps of enabling the thickness of the end of the structural body to be larger than the thickness of the area, far away from the end, of the net-shaped structural body when the net-shaped structural body is formed, enabling the thickness of the end of the structural body to be smaller than or equal to the thickness of the area, far away from the end, of the net-shaped structural body when the pressure is applied to the end of the structural body, or enabling the end of the structural body to pass through a pair of compression rollers arranged at intervals, wherein a plurality of protrusions are arranged on a roller body of the compression rollers, and enabling the end of the structural body to.

Further, when forming network structure body, structure body tip has the wind pressure that is bigger than network structure body, include, form network structure body through the mould, the mould include the shaping district, the shaping district include the adsorption plane, the adsorption plane include first adsorption zone and second adsorption zone, first adsorption zone and second adsorption zone all are provided with a plurality of adsorption holes of being connected with vacuum device, wherein, first adsorption zone corresponds with structure body tip, is greater than the wind pressure of second adsorption zone at the wind pressure of first adsorption zone.

Further, the first end portion is bent toward the first edge.

Further, breast pad still include the body, the formation mode of folding portion be, fold surface course, absorption sandwich layer and bottom simultaneously, overturn 180 formation folding portions towards the functional area direction with partial surface course in folding process, and, the surface course butt of at least some surface courses and the body of the folding portion that forms.

Further, the breast pad comprises two folding parts, each folding part comprises a plurality of folding bodies, and the folding bodies are alternately folded in opposite directions. .

Has the advantages that: the embodiment of the invention provides a breast pad, which comprises a surface layer, an absorption core layer and a bottom layer, wherein the breast pad comprises at least one folding part, two ends of the folding part are fixed, the absorption core layer comprises a core body and a coating layer covered on the core body, the core body comprises a network-shaped structural body formed by fibers and a high polymer water absorption material, the density of the coating layer is greater than that of the network-shaped structural body, the absorption core body comprises a folding end part at the folding part, the core body positioned at the folding end part comprises a first edge, and the coating layer at the folding end part comprises a first end part which protrudes out of the first edge, so that on one hand, the coating layer forms a block on the upper side and the lower side of the network-shaped structural body, on the other hand, the coating layer protruding out of the first edge forms a block on the side of the network-shaped structural body, therefore, when the folding part is unfolded, the edge area is fixed, so that the breast pad forms a cup shape or a hemisphere shape and forms good adhesion with the breast.

Drawings

FIG. 1 shows a schematic view of a prior art breast pad folded configuration;

FIG. 2 is a schematic cross-sectional view of a breast pad provided by an embodiment of the present application;

FIG. 3 shows a top view of a nursing pad;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure B-B of FIG. 3;

FIG. 6 shows a schematic cross-sectional view of C-C of FIG. 3;

FIG. 7 is a schematic cross-sectional view of a folded end portion of a nursing pad in another embodiment;

FIG. 8 shows a schematic view of a mold in another embodiment;

fig. 9 shows a schematic drawing of the suction side of the mold.

Description of the illustrated elements:

a crease 11; a first region 12; the high-molecular water-absorbing

material

13, 42; a breast pad 20; a functional region 201; a non-functional area 202; a body 21; a folded portion 22; the

folding bodies

221, 222; a fold region 223; a face layer 30; an absorbent core layer 40; a core body 41; a first cladding 411; a first end 4111; a network-like structure 412;

structure ends

4121, 6121; a first edge 4122;

binder

4123, 60; the first high-density region 4124; a second cladding layer 413; a bottom layer 50; a mold 70; a molding zone 71; an adsorption surface 72; a first adsorption zone 721; a second adsorption zone 722; adsorbing the pores 723.

Detailed Description

Please refer to fig. 2-3 in combination, wherein fig. 2 shows a schematic cross-sectional structure of a nursing pad 20 provided in an embodiment of the present application, fig. 3 shows a schematic top structure of the nursing pad 20, and the present application will be further explained with reference to these drawings.

The breast pad 20 provided by the embodiment of the application comprises a surface layer 30, a bottom layer 50 and an absorption core layer 40 sandwiched between the surface layer 30 and the bottom layer 50.

The facing layer 30 is preferably disposed on a side adjacent to the skin of the user and is preferably selected to be low-irritating, soft, e.g., having a basis weight of 10-60 g/m²The sheet-like material such as gauze, cotton cloth, spunlace nonwoven fabric, and hot air nonwoven fabric is more preferableThe nonwoven fabric is a through-air nonwoven fabric made of thermoplastic synthetic fibers.

As the synthetic fibers constituting the hot air non-woven fabric, polyolefin fibers such as Polyethylene (PE) fibers and polypropylene (PP) fibers, polyester fibers, polyamide fibers such as nylon, and the like may be used, and in some alternative embodiments, natural fibers or viscose fibers may be added together to further reduce irritation to the skin, and these natural fibers may include wood fibers, cotton fibers, and the like.

In another embodiment, the surface layer 30 may be further modified to be more skin-friendly, for example, the surface layer 30 is further bulked on the side facing the skin of the wearer, specifically, a brush is arranged to roll or brush the surface of the surface layer 30, so as to fluff the surface of the surface layer 30, thereby providing a bulkier surface.

The absorbent core layer 40 is disposed between the topsheet 30 and the backsheet 50 for absorbing and containing liquid that has permeated through the topsheet 30.

The bottom layer 50 is disposed on a side away from the skin of the user, and in order to prevent the liquid from contaminating the clothes of the user through the surface layer 30, the bottom layer 50 is usually made of a water-repellent material, and specifically, may be a PE film, an SMS nonwoven fabric, or the like.

The facing layer 30 includes a functional region 201 and a non-functional region 202 surrounding the functional region 201. It is understood that the functional region 201 is generally disposed corresponding to the location of milk overflow, such as the nipple and the area adjacent to the nipple, to achieve the function of absorbing milk overflow, and the non-functional region 202 is the edge area of the breast pad 20, which can be used for fitting, fixing or fixing the surface layer 30 and the bottom layer 50 with the underwear or with the breast, for the convenience of understanding, the non-functional region 202 is also referred to as the edge area hereinafter.

The breast pad 20 provided by the present application comprises a body 21 and at least one folding part 22 connected with the body 21, wherein the folding part 22 extends from the center of the functional region 201 to the non-functional region 202 at two ends, and the folding part 22 extending to the non-functional region 202 is fixed to form a fixed end.

Wherein, when the breast pad 20 is used, it should be cup-shaped or hemispherical to correspond to the shape of the breast and attach to the breast, if the cup-shaped breast pad 20 is directly made, because the material composing the breast pad 20 is relatively soft, it is not easy to make the model, and the occupied volume after packaging is large, which is not beneficial to transportation. Thus, a foldable nursing pad 20 can be made, which foldable nursing pad 20 is folded during packing and transportation to reduce the packing volume and then unfolded to form a cup-shaped or hemispherical nursing pad 20 when in use.

Please refer to fig. 4 to 6 in combination, wherein fig. 4 shows a sectional structure of the nursing pad 20 along a-a, fig. 5 shows a sectional structure of the nursing pad 20 along B-B, and fig. 6 shows a sectional structure of the nursing pad 20 along C-C. The breast pad 20 provided by the present application needs to turn over part of the surface layer 30 toward the functional region 201 by 180 ° during the folding process to form the folding portion 22, and meanwhile, in the present embodiment, the surface layer 30, the absorbent core layer 40 and the bottom layer 50 need to be folded simultaneously during the process of forming the folding portion 22, and it can be understood that at least part of the surface layer 30 of the formed folding portion 22 abuts against the surface layer 30 of the body 21.

The folding portion 22 extends from the center of the functional region 201 to the two end edges to form an integrally folded folding region 223, and the folding region 223 may be a quadrangle including two upper and lower edges in the horizontal direction and two left and right edges in the vertical direction. It is to be understood that the references herein to an orientation or positional relationship of up, down, left, right, transverse, vertical, etc. are based on the orientation or positional relationship shown in the drawings for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the folded cover 30 referred to must have a particular orientation, be constructed and operated in a particular orientation, and that this orientation will change accordingly when the angle and viewing angle are changed, and therefore should not be construed as limiting the present application. The folded portion 22 may extend in the lateral direction from the center of the functional region 201 to both left and right edges to form an integrally folded region 223. In use, the breast pad 20 is laterally fixed to the underwear or the breast such that the center of the functional region 201 corresponds to the nipple area, and the folded portion 22 is unfolded in the vertical direction to cover the breast. With this arrangement, since the folding portions 22 extend from the center of the functional region 201 to both the left and right edges, the overlapping marks formed by the folding portions 22 can serve as a flow guide to guide the body fluid in the center region to diffuse to both the side regions, thereby improving the absorption performance of the nursing pad 20. In other embodiments, the folded region 223 may have other shapes, such as a triangle, a semicircle, etc., without limitation, and the folded breast pad 20 will be described as a quadrangle.

The folded portions 22 extend from the center of the functional region 201 to both end edges to form integrally folded regions 223, and the folded portions 22 extending to the edges are fixed. By fixing the end of the fold 22, the edge region is fixed when the fold 22 is unfolded, thereby making the breast pad 20 cup-shaped or hemispherical. In order to make the unfolded nursing pad 20 cup-shaped or hemispherical, the folding width of the folding part 22 in the central area should be larger than that of the folding part 22 in the edge area, so that the nursing pad 20 in the central area has enough area to protrude to form the cup-shaped or hemispherical shape when unfolded.

In addition, in this embodiment, there are two folding portions 22 respectively located at the upper side and the lower side of the body 21, so that the two folding portions 22 can be respectively unfolded upwards and downwards, on one hand, the unfolding area is increased, and on the other hand, the crease is prevented from just passing through the nipple area at the center of the functional area 201, which causes discomfort in use.

Meanwhile, in order to further increase the unfolding area of the folding portion 22, each folding portion 22 comprises a plurality of folding bodies 221, and each folding body 221 can be folded along the same direction or alternatively in opposite directions.

The folding in the same direction means that the breast pad 20 is sequentially folded in the same direction from one end to form a plurality of folded bodies 221, so that the laminating direction of each folded body 221 is the same, and the laminating areas of two adjacent folded bodies 221 may or may not overlap. The same laminating direction means that the folding direction of each folding body 221 is the same, for example, the milk pad 20 is folded upwards from the lower edge, the milk pad 20 is folded upwards once to form one folding body 221, and then the rest of the milk pad 20 is continuously folded upwards to form a second folding body 221 until reaching the upper edge of the milk pad 20.

Referring to fig. 4 and 5, the alternating and reverse folding is to fold the milk pad 20 from one end to the opposite direction to form a plurality of folds (221, 222) so that the adjacent folds (221, 222) are folded in opposite directions, for example, in this embodiment, the milk pad 20 is folded upward from the lower edge, the milk pad 20 is folded upward once to form one fold 221, and then the remaining milk pad 20 is folded downward to form a second fold 222 until reaching the upper edge of the milk pad 20.

Wherein the folded portion 22 extending to the edge is fixed, may be formed by disposing an adhesive 60 between the adjacent folded bodies 221.

In addition, in the present embodiment, the two folding portions 22 are symmetrically arranged in the up-down direction.

The absorbent core layer 40 comprises a core body 41 and a covering layer covering the core body 41, wherein the core body 41 comprises a network structure 412 made of fibers and a high molecular water absorbent material 42, wherein the density of the covering layer is greater than that of the network structure 412, the absorbent core layer 40 comprises a folded end portion in the folded portion 22, the core body 41 at the folded end portion comprises a first edge 4122, the covering layer at the folded end portion comprises a first end portion 4111, and the first end portion 4111 protrudes from the first edge 4122.

The core 41 includes a three-dimensional network structure 412 formed by entangling a plurality of fibers and connecting the fibers appropriately, and a high molecular water-absorbing material 42, wherein a plurality of pores are distributed among the three-dimensional network structure, the high molecular water-absorbing material 42 is distributed among the three-dimensional network structure, liquid can be absorbed and diffused through the pores, and the liquid can be absorbed and retained by the high molecular water-absorbing material 42, and the fibers can be fluff pulp.

Specifically, the fluff pulp is straw pulp or wood pulp, and is preferably wood pulp. Because the fiber in the straw pulp is shorter, the flow guide effect is poorer, and compared with the straw pulp, the fiber in the wood pulp is longer, and the flow guide effect is better.

Specifically, the particle size of the polymeric water absorbent material 42 (SAP) is 50 μm to 900 μm. Too large or too small a particle size may affect the thickness of the absorbent core layer 40 or the distribution of the high molecular water absorbent material 42 in the absorbent core layer 40.

The clad layer covers the core 41, and in this embodiment, the clad layer includes a first clad layer 411 and a second clad layer 413 distributed on the upper and lower sides of the core 41, wherein the first clad layer 411 is close to the surface layer 30, and the second clad layer 413 is close to the bottom layer 50.

The density of the coating layer is greater than that of the network-like structure 412, so that the polymeric water-absorbing material 42 is prevented from directly permeating the surface layer 30 by the barrier effect of the coating layer on the polymeric water-absorbing material 42, which is separated from the network-like structure 412.

It will be appreciated that when the breast pad 20 is folded, the absorbent core layer 40 is folded along with the absorbent core layer 40, the absorbent core layer 40 at the fold 22 includes a folded end portion, wherein the core 41 at the folded end portion includes a first edge 4122, the cover at the folded end portion includes a first end portion 4111, the first end portion 4111 protrudes from the first edge 4122, specifically, the folded end portion faces the non-functional region 202, the core 41 has a structure end portion 4121 at the folded end portion, wherein the first edge 4122 is an end face of the structure end portion 4121 facing the non-functional region 202, and the first end portion 4111 protrudes from the first edge 4122 so as to prevent the high molecular water absorbent material 42 from being separated from the facing layer 30 by the first end portion 4111 even if a portion of the high molecular water absorbent material 42 falls off through the structure end portion 4121, thereby preventing the high molecular water absorbent material 42 from directly contacting the facing layer 30 and separating out from the facing layer.

Further, the length of the first end portion 4111 protruding from the first edge 4122 is greater than or equal to 1/3 of the thickness of the network-shaped structure 412, so as to form a complete blocking effect, and preferably, the length of the first end portion 4111 protruding from the first edge 4122 is greater than or equal to 2 mm.

Further, the length of the first end portion 4111 protruding from the first edge 4122 is less than or equal to 3 times of the thickness of the network-shaped structure 412, so that on one hand, the first end portion 4111 forms a blocking effect, and on the other hand, a small accommodating space is provided between the first end portion 4111 and the first edge 4122, and only a small amount of the high molecular water absorbent material 42 passing through the end portion 4121 of the structure can be accommodated, thereby preventing the high molecular water absorbent material 42 from excessively swelling in the accommodating space, which results in the high molecular water absorbent material 42 being extruded out of the surface layer 30.

Further, the first end portion 4111 is bent toward the first edge 4122 to form a barrier to the high molecular weight water absorbent material 42 in the first edge 4122, and when the first end portion 4111 bent toward the first edge 4122 receives a force during the folding process when the absorbent core layer 40 is folded, the first end portion can further move toward the first edge 4122, so as to limit the expansion of the fibers in the network-shaped structure 412 after being squeezed, thereby reducing the pores between the fibers at the end portion 4121 of the structure, and preventing the high molecular weight water absorbent material 42 from falling off through the end portion 4121 of the structure.

Further, the folds 221 of the folded part 22 are folded in opposite directions alternately, in such a manner that the first and second coatings 411 and 413 are pulled in opposite directions after each folding, thereby further limiting the expansion of the fibers in the network-like structure 412 after compression.

Further, a bonding zone is provided between the end 4121 of the structure and the first cladding 411, the bonding zone having a density greater than the density of the network-like structure 412 to provide a barrier effect, and in particular, the bonding zone may be formed by disposing an adhesive 4123 at the bonding zone or by entangling at least a portion of the fibers of the first cladding 411 with the fibers of the network-like structure 412, and in a preferred embodiment, the adhesive 4123 provided at the bonding zone extends to the first end 4111 to provide a high density zone of the adhesive 4123 at the first end 4111 to provide a further barrier effect.

Further, the structure end 4121 includes a first high density section 4124, and the density of the first high density section 4124 is greater than that of the network-shaped structure 412, so as to form a blocking effect at the structure end 4121, on one hand, prevent the polymeric water absorbing material 42 from passing through the structure end 4121 due to the enlarged pores after the fibers are squeezed during the folding process; on the other hand, the high-density regions directly provide a barrier effect to prevent the water absorbent polymer material 42 from penetrating through the end 4121 of the structure, and preferably, the density of the first high-density region 4124.

Specifically, the first high-density section 4124 is disposed on the side of the structural body end 4121 facing the first coating layer 411, and preferably, the height of the first high-density section 4124 is greater than or equal to 1/3 of the thickness of the network-shaped structural body 412, so as to form a better blocking effect.

Further, referring to fig. 7, in another embodiment, the structure ends 6121 are all configured as the first high-density area, i.e. the height of the first high-density area is equal to the thickness of the network-shaped structure.

Further, the first high-density portion 4124 may be formed by one of the following methods:

the first formation is such that an adhesive 4123 is provided on the side of the structure end 4121 facing the first coating layer 411, at least a part of the adhesive 4123 penetrates in the thickness direction of the network-like structure 412, and the first high-density region 4124 is formed when the adhesive 4123 is cured.

In the second formation mode, the network-like structures 412 are formed, and the first high-density region 4124 is formed in the structure end 4121 by applying pressure to the structure end 4121 and making the density of at least a partial region of the structure end 4121 greater than the density of the network-like structures 412.

Specifically, when the network-like structures 412 are formed such that the thickness of the structure end 4121 is greater than the thickness of the network-like structure 412 in the region away from the end, and when pressure is applied to the structure end 4121 such that the thickness of the structure end 4121 is equal to or less than the thickness of the network-like structure 412 in the region away from the end, thereby making the density of at least a portion of the structure end 4121 greater than the density of the network-like structure 412, it can be understood that the region having a density greater than the density of the network-like structure 412 forms the first high-density region 4124.

In another embodiment, applying pressure to the structure end 4121 includes passing the structure end 4121 through a pair of spaced apart rollers, wherein a plurality of protrusions are disposed on a roller body, and applying pressure to the structure end 4121 and forming indentations by the protrusions, the indentations including a length direction, the length direction of the indentations intersecting the folding direction to form a blocking effect by the indentations, preferably, the length direction of the indentations being perpendicular to the folding direction.

Referring to fig. 8, fig. 8 shows a mold 70 for forming a network-shaped structure 412, where the mold 70 includes a plurality of forming regions 71, dispersed fibers are received in the forming regions 71 and entangled in the forming regions 71 to form a network-shaped structure 412 corresponding to the shape of the forming regions 71, the network-shaped structure 412 in the forming regions 71 is demolded to form an independent network-shaped structure 412, the forming regions 71 include a first region and a second region corresponding to a structure end 4121, and when the depth of the first region is greater than that of the second region, the thickness of the structure end 4121 in the formed network-shaped structure 412 is greater than that of the rest of the structure.

In a third forming manner, the forming region 71 of the mold 70 includes an absorption surface 72, and please refer to fig. 9 together, fig. 9 shows a schematic view of the absorption surface 72 of the forming region 71 of the mold 70, in which the absorption surface 72 includes a first absorption region 721 and a second absorption region 722, the first absorption region 721 and the second absorption region 722 are both provided with a plurality of absorption holes 723 connected to a negative pressure device, and are used for absorbing fibers onto the absorption surface 72 through the absorption holes 723 and entangling to form the network-shaped structure 412, wherein the first absorption region 721 corresponds to the structure end 4121, and a wind pressure at the first absorption region 721 is greater than a wind pressure at the second absorption region 722.

The wind pressure of the first adsorption area 721 is greater than the wind pressure of the second adsorption area 722, and may be formed by the negative pressure of the negative pressure device connected to the first adsorption area 721 being greater than the negative pressure of the negative pressure device connected to the second adsorption area 722, or by the open area of the adsorption hole 723 on the first adsorption area 721 being greater than the open area of the adsorption hole 723 on the second adsorption area 722.

Further, since the position of the overflow part of the milk corresponding to the breast pad 20 is the center of the breast pad 20, on one hand, the breast pad 20 is in a vertical state during the use process, so that the absorption capacity of the upper region and the left and right regions of the overflow part cannot be utilized, and the waste of the high polymer water absorbing material 42 is caused. The utility model provides a breast pad 20 can also set up the guiding gutter on absorbing sandwich layer 40, and the guiding gutter extends from the center of breast pad 20 to upside and left and right sides edge, and is close to more breast pad 20 edge the degree of depth of guiding gutter is dark more, through setting up the guiding gutter, can guide the regional body fluid of central region to the regional diffusion in both sides about and, can improve the absorption properties of breast pad 20.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A breast pad comprises a surface layer, an absorption core layer and a bottom layer which are arranged in a stacking way, the nursing pad comprises a functional area and a non-functional area surrounding the functional area, the nursing pad comprises at least one fold, the folded part extends from the center of the functional region to the non-functional region at both ends, the folded part extending to the non-functional region is fixed to form a fixed end, the absorption core layer comprises a core body and a coating layer covering the core body, the core body comprises a network structure body formed by fibers and a high polymer water absorption material, wherein the density of the covering layer is greater than that of the network-like structure, the absorbent core includes folded end portions at the folded portions, the core body at the folded end part comprises a first edge, and the covering layer at the folded end part comprises a first end part which protrudes out of the first edge.

2. The nursing pad of claim 1 wherein a bonding region is further disposed between the end portion of the structure and the first cover layer, the bonding region having a density greater than the density of the network-like structure, the bonding region including an adhesive, the bonding agent extending to the first end portion.

3. The breast pad of claim 2 wherein said network includes a structural body end, said first edge being disposed on said structural body end, said structural body end including a first high density region, said first high density region having a density greater than a density of said network.

4. The nursing pad of claim 3 wherein the first high density region is disposed on the side of the end of the structure facing the cover, the first high density region has a height equal to or greater than 1/3 mm of the thickness of the network structure, and the length of the first end protruding beyond the first edge is equal to or greater than 2 mm.

5. The nursing pad of claim 4, wherein the first high-density regions are formed by providing an adhesive on the side of the end of the structure facing the first cover layer, at least a part of the adhesive penetrating in the thickness direction of the network-like structure, and forming the first high-density regions after the adhesive is cured, or forming the network-like structure by applying pressure to the end of the structure so that the density of at least a part of the end of the structure is higher than that of the network-like structure, thereby forming the first high-density regions, or, when forming the network-like structure, the end of the structure has a wind pressure higher than that of the network-like structure.

6. The breast pad of claim 5 wherein said applying pressure to the ends of the structure to provide a density of at least a portion of the ends of the structure greater than the density of the network comprises forming the network such that the thickness of the ends of the structure is greater than the thickness of the areas of the network remote from the ends of the structure, and applying pressure to the ends of the structure such that the thickness of the ends of the structure is less than or equal to the thickness of the areas of the network remote from the ends of the structure, or passing the ends of the structure through a pair of spaced apart rollers, wherein a roller body has a plurality of protrusions, and wherein the protrusions provide pressure to the ends of the structure and provide indentations, the indentations comprising lengthwise directions that intersect the direction of folding of the fold.

7. The nursing pad of claim 5, wherein the end of the structure has a wind pressure greater than that of the network structure when the network structure is formed, comprising forming the network structure by a mold, the mold comprising a molding region, the molding region comprising an absorption surface, the absorption surface comprising a first absorption region and a second absorption region, the first absorption region and the second absorption region having a plurality of absorption holes connected to the negative pressure device, wherein the first absorption region corresponds to the end of the structure, and the wind pressure in the first absorption region is greater than the wind pressure in the second absorption region.

8. Breast pad according to any of claims 2-7, wherein the first end portion is curved in the direction of the first edge.

9. A breast pad according to claim 8, further comprising a body, wherein the fold is formed by folding the topsheet, the absorbent core and the backsheet simultaneously, wherein during folding a part of the topsheet is turned 180 ° in the direction of the functional zone to form the fold, and wherein at least a part of the formed fold abuts the topsheet of the body.

10. A nursing pad as claimed in claim 9, characterized in that the nursing pad comprises two folds, each fold comprising a plurality of folds, the folds being alternately folded in opposite directions.