Absorption core and absorption product with same

By designing through-cuts on the support layer of the absorbent core, the problem of excessive hardness of the absorbent core is solved, the softness and absorption performance of the product are improved, and it is suitable for existing production processes.

CN222788018UActive Publication Date: 2025-04-25KIMBERLY CLARK (CHINA) CO LTD
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Patent Information

Application Number
CN202420868294.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2025-04-25
Estimated Expiration
2034-04-24

AI Technical Summary

Technical Problem

Due to the high hardness of the support layer of existing absorbent products, the absorbent core of the existing absorbent products has a hard feel, affecting the softness and comfort. At the same time, it is difficult to take into account both product softness and production efficiency in the production process.

Method used

A multi-layer structure composite absorbent core is designed, and its support layer reduces the hardness of the absorbent core by designing through cuts therein, thereby improving softness while maintaining strength without reducing, adapting to existing production processes.

Benefits of technology

While keeping the strength of the absorbent core unchanged, the hardness of the absorbent core is reduced, the product comfort is improved, and the liquid absorption rate is improved, and the absorption performance is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an absorption core body and an absorption product with the same. The absorbent core includes: a top layer configured to face a body of a wearer; a bottom layer disposed opposite the top layer and configured to face a garment of a wearer; the absorption layer is positioned between the top layer and the bottom layer; a support layer joining the absorbent layer between the top layer and the bottom layer wherein the support layer is formed with a plurality of cuts extending continuously from a first surface of the support layer facing the top layer to a second surface of the support layer facing the bottom layer.
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Description

Technical Field

[0001] The utility model relates to the technical field of personal hygiene care products, in particular to an absorbent core and an absorbent product having the same. Background Art

[0002] Disposable personal care products, or absorbent articles, such as diapers and training pants, are usually used to collect and retain human excretions. Absorbency, comfort and fit are three important attributes of the product and are also the aspects that users pay more attention to. Generally, users are more interested in whether such products are sufficient to absorb a large amount of body excretions without leakage, so as not to stain the wearer's clothes or bed sheets, etc., and without sacrificing the comfort of the product.

[0003] A currently known absorbent product has a top sheet layer positioned to be liquid-permeable facing the body, a bottom sheet layer positioned to be liquid-impermeable facing the clothing, and an absorbent core sandwiched between the top sheet layer and the bottom sheet layer. The edges of the top sheet layer and the bottom sheet layer are usually bonded together at their peripheries to form a seal, thereby wrapping the absorbent core and intercepting body discharges that penetrate through the top sheet layer. The absorbent core is one of the important components of such products, which is related to the product's ability to capture and retain body discharges and has a certain impact on the comfort of the product. For composite absorbent cores using superabsorbent polymers (SAP) as absorbent materials, due to the limitations of the production process, the support layer of the core is generally made of a hot air non-woven material with a higher gram weight. However, the high gram weight of the support layer will cause the core to feel hard, further affecting the softness and comfort of the product. At present, there is no suitable solution to take into account the softness of the product and the production efficiency of the product on the production line. Utility Model Content

[0004] The utility model aims to provide an absorbent core, which can at least solve some of the above technical problems.

[0005] The utility model also aims to provide an absorbent product using the improved absorbent core.

[0006] According to one aspect of the utility model, an absorbent core is provided, comprising: a top layer, configured to face the body of a wearer; a bottom layer, arranged opposite to the top layer and configured to face the clothing of the wearer; an absorbent layer, located between the top layer and the bottom layer; and a support layer, the absorbent layer being joined between the top layer and the bottom layer, wherein the support layer is formed with a plurality of incisions, the incisions extending continuously from a first surface of the support layer facing the top layer to a second surface of the support layer facing the bottom layer.

[0007] The absorbent core provided by the present solution, especially the composite absorbent core of multi-layer structure, can reduce the hardness of the absorbent core while keeping the grammage of the original core support layer basically unchanged, thereby improving the softness of the core and the comfort of the absorbent product while maintaining the strength of the absorbent core sufficient to adapt to the existing production process. In addition, the absorbent core can also increase the absorption rate of liquid and improve the absorption performance of the absorbent product.

[0008] In some embodiments, the absorbent layer comprises a first absorbent layer joined between the top layer and the support layer and a second absorbent layer joined between the support layer and the bottom layer, wherein at least one of the first absorbent layer and the second absorbent layer comprises a superabsorbent polymer.

[0009] According to another aspect of the utility model, an absorbent product is provided, having mutually perpendicular lateral and longitudinal directions, wherein the absorbent product comprises: a base sheet, including a top sheet and a bottom sheet; an absorbent core, attached to the base sheet and located between the top sheet and the bottom sheet, wherein the absorbent core is the aforementioned absorbent core.

[0010] In some embodiments, the absorbent article further comprises an acquisition layer between the topsheet and the absorbent core, wherein at least one of the topsheet and the acquisition layer has a plurality of cutouts.

[0011] In some embodiments, the cutout is configured in at least one of the following ways: extending linearly, extending in an arc shape, extending in a wave shape, or being dotted.

[0012] In some embodiments, the cutouts are configured in at least one of the following ways: arranged in the longitudinal direction of the absorbent core, arranged in the transverse direction of the absorbent core, and arranged at an angle relative to the transverse and longitudinal directions of the absorbent core.

[0013] In some embodiments, among the plurality of incisions, two adjacent incisions are arranged parallel to or at an angle to each other.

[0014] In some embodiments, the plurality of cutouts form a plurality of regions having different cutout densities.

[0015] In some embodiments, the plurality of cutouts are arranged in a plurality of rows, wherein a cutout in any row is located between two adjacent cutouts in an adjacent row.

[0016] In some embodiments, the plurality of cutouts are arranged in a plurality of rows, wherein a cutout in any row is aligned with a cutout in an adjacent row.

[0017] Some of the other features and advantages of the utility model will be apparent to those skilled in the art after reading this application, and the other parts will be described in the following specific embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 is a schematic diagram of an absorbent article according to an embodiment of the present invention;

[0020] Figure 2 is a cross-sectional view perpendicular to the TL plane of an absorbent article according to an embodiment of the present invention;

[0021] Figure 3 is a schematic cross-sectional view perpendicular to the TL plane of an absorbent core according to an embodiment of the utility model;

[0022] Figure 4 and Figure 5 It is a schematic diagram of a cutout of a support layer according to an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1-absorbent article; T-transverse; L-longitudinal; 2-base sheet; 21-front area; 211-front side edge; 212-front edge; 22-back area; 221-back side edge; 222-back edge; 23-crotch area; 231-crotch side edge; 3-absorbent core; 31-top layer; 32-bottom layer; 33-first absorbent layer; 34-second absorbent layer; 35-support layer; 351-first surface; 352-second surface; 353-incision; 4-top sheet; 5-guiding layer; 6-bottom sheet DETAILED DESCRIPTION

[0025] Now, with reference to the accompanying drawings, schematic schemes of absorbent articles and absorbent cores disclosed in the present utility model are described in detail. Although the accompanying drawings are provided to present some embodiments of the present utility model, the accompanying drawings do not have to be drawn according to the dimensions of the specific embodiments, and certain features may be enlarged, removed or partially cut to better illustrate and explain the disclosure of the present utility model. Some components in the accompanying drawings may be adjusted in position according to actual needs without affecting the technical effect. The phrase "in the accompanying drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0026] Certain directional terms used to describe the drawings below, such as "inside", "outside", "above", "below" and other directional terms, will be understood to have their normal meanings and refer to those directions involved when the drawings are normally viewed. Unless otherwise specified, the directional terms described in this specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0027] The terms "first", "first", "second", "second" and the like used in the present invention do not indicate any order, quantity or importance, but are used to distinguish one component from other components.

[0028] As used herein, the term "absorbent article" refers to a product that can be placed against or near the body of the wearer (i.e., adjacent to the body) to absorb and contain various liquid, solid and semi-solid excretions discharged from the body. As described herein, such absorbent articles are intended to be discarded after a limited period of use rather than being washed or otherwise restored for reuse, and therefore may also be referred to as "disposable absorbent articles."

[0029] As used herein, the term "bond" refers to the attachment, adhesion, connection, etc. of two elements. Two elements will be considered to be bonded together when they are attached, adhered, connected, etc. directly to each other or indirectly to each other, such as when superimposed and positioned on each other. Bonding can be performed by, for example, adhesives, pressure bonds, heat bonds, ultrasonic welding, splicing or sewing.

[0030] As used herein, the term "ultrasonic welding" refers to a process performed, for example, by passing the material through a slit between an ultrasonic generator and a support roll.

[0031] As used herein, the term "elastic material" refers to an elastic long strip of material, such as but not limited to elastic rubber bands, elastic threads, elastic belts, elastic fiber nonwoven sheets, etc. The elastic material can be stretched in at least one direction (e.g., longitudinally or transversely) by applying a stretching force, and can shrink / recover to approximately its original size by releasing the stretching force.

[0032] The present disclosure firstly relates to a composite absorbent core, which is constructed as a multi-layer structure, wherein the support layer of the core has a reduced hardness by designing a through cut thereon, thereby improving the hand feel of the core and the overall softness of the product, while substantially retaining the strength of the core to prevent it from being stretched and torn in the existing production process. In addition, as a fluid receiving layer directly bonded to the core absorbent material, the support layer also increases the rate at which the product absorbs liquid by means of the cut. The absorbent core disclosed in the present disclosure is particularly adaptable to the existing absorbent product production process and has good economic benefits.

[0033] The present disclosure also relates to an absorbent product using the composite absorbent core, which has good softness and sufficient strength and has a good liquid absorption rate.

[0034] Figure 1An absorbent article 1 according to the present disclosure is shown exemplarily. The absorbent article 1 may be a shorts-type personal care product (e.g., diapers). It should be understood that, without departing from the scope of the present disclosure, the technical solution of the present disclosure is suitable for absorbent articles for personal care, including but not limited to diapers, training pants, pull-on pants, and feminine hygiene products.

[0035] like Figure 1 As shown, the absorbent article 1 is shown in a flat configuration and presents a natural state, without elastic deformation or wrinkles caused by external forces. The absorbent article 1 has a transverse direction T and a longitudinal direction L that are perpendicular to each other. Along the longitudinal direction L, the main body or substrate 2 of the absorbent article 1 can be divided into a front region 21, a crotch region 23 and a rear region 22, wherein the crotch region 23 is connected between the front region 21 and the rear region 22. In the wearing state, the front region 21 roughly covers the wearer's ventral waistline, and the rear region 22 roughly covers the wearer's dorsal waistline. The front region 21 has front side edges 211 on opposite sides in the transverse direction, and a front end edge 212 extending between the two front side edges 211 along the transverse direction T. The rear region 22 has rear side edges 221 on opposite sides in the transverse direction, and a rear end edge 222 extending between the two rear side edges 221 along the transverse direction T. The crotch region 23 has crotch side edges 231 on opposite sides in the transverse direction. The front edge 212 and the rear edge 222 basically define two ends of the absorbent article 1 in the longitudinal direction L.

[0036] The single-piece personal care absorbent article 1 needs to be bent in the crotch area 23 and the front area 21 and the rear area 22 are joined together near the front side edge 211 and the rear side edge 221, so as to form a shorts configuration. At this time, the front edge 212 and the rear edge 222 jointly enclose the waist opening for accommodating the wearer's trunk, and the two crotch side edges 231 of the crotch area 23 respectively enclose the leg opening for accommodating the wearer's thigh. For the purpose of facilitating the engagement of the front area 21 and the rear area 22, side pieces (not shown) can also be provided on the lateral opposite sides of the rear area 22, and each side piece extends beyond the corresponding rear side edge 222. A connecting structure can be set between the side piece and the front area 21 to realize detachable connection. Reliable connecting structure such as Velcro or Velcro. A part of Velcro (such as a large number of micro hooks) can be arranged on the side piece, and another part of Velcro (such as a large number of micro loops) is arranged in the front area 21 accordingly. Another detachable connecting structure is, for example, an adhesive tape coated on at least one of the side piece and the front area.

[0037] Figure 1In the absorbent article 1 shown, the base sheet 2 as the main body of the absorbent article 1 is in a one-piece structure in the LT plane. A pair of crotch side edges 231 can be formed by cutting the entire sheet, thereby dividing the front area 21 and the back area 22 on opposite sides of the crotch area 23, thereby constructing a one-piece base sheet 2. The side panels can be joined to the base sheet 2 in the back area 22, or the side panels can be formed integrally by the base sheet 2 itself. In other embodiments, the absorbent article 1 can also be without side panels.

[0038] Figure 2 A schematic cross-sectional view of an absorbent article 1 perpendicular to the TL plane is shown. From the perspective of the LT plane (or from the thickness direction), the substrate 2 includes a top sheet 4 adapted to face the body when worn and a back sheet 6 adapted to face away from the body when worn. The top sheet 4 and the back sheet 6 can be joined together along the periphery by known bonding techniques (e.g., adhesives, ultrasonic bonding, etc.) to form a sealed peripheral area and an internal cavity, and the absorbent core 3 is arranged in the internal cavity. The top sheet 4 can be a single-layer or multi-layer laminate, which defines a surface that directly contacts the wearer's skin and is hydrophilic to receive body discharges and guide body discharges to the absorbent core 3. The top sheet 4 preferably retains almost no liquid in its structure, thereby providing a relatively comfortable and non-irritating touch while being close to the wearer's skin. In one embodiment, the top sheet 4 can form a plurality of incisions that pass through the plane perpendicular to the TL plane. The top sheet 4 after the incision can be connected to the absorbent core 3, for example, by bonding. The top sheet 4 with the cutouts can promote the absorption of body excreta and improve the breathability of the product, making the user's skin drier and free from sticky feeling. The cutouts can be formed in the top sheet 4 in different shapes and arrangements as required, which will be described in detail later.

[0039] The liquid passing through the top sheet 4 can directly enter the absorbent core 3. Figure 2 As shown, a guide layer 5 can be provided between the top sheet 4 and the absorbent core 3. The guide layer 5 helps the absorbent article 1 to absorb liquid quickly, effectively and evenly, and prevents the liquid from being concentrated locally in the absorbent core 3, causing the core to be locally blocked due to excessive absorption and further forming back permeation. In order to evenly distribute the absorbed body discharges, especially liquids, the guide layer 5 can be provided with a guide structure, for example, having a groove oriented from the center of the top sheet 5 to the periphery. The guide layer 5 can also be formed with a plurality of cuts that pass through along a plane perpendicular to the TL. These cuts are spread throughout the guide layer 5, which helps to distribute the body discharges more evenly to the absorbent core and prevent liquid accumulation. The guide layer 5 can also be connected to the absorbent core 3, for example, by bonding. The cuts can be formed in the guide layer 5 in different shapes and arrangements as needed, which will be described in detail later.

[0040] Backsheet 6 is impermeable to liquids and is the portion of absorbent article 1 that faces the wearer's clothing. Backsheet 6 can be configured to allow gas to overflow from absorbent article 1, but prevent liquid from flowing through. Backsheet 6 can be a single layer or multilayer laminate. Various woven and nonwoven fabrics can be used to make top sheet 4 and backsheet 6. Examples of nonwovens can be spunbond fabrics, meltblown fabrics, spunlace fabrics, air-through fabrics, etc., and combinations thereof.

[0041] The absorbent core 3 is positioned between the top sheet 4 and the back sheet 6. In the embodiment with the distribution layer 5, the absorbent core 3 is arranged between the distribution layer 5 and the back sheet 6. The absorbent core 3 can be a composite material made of laminated liquid absorbent raw materials, which can show a certain degree of stretchability and comfort, is non-irritating to the wearer's skin, and can absorb and retain body exudates. The absorbent core 3 can be made of any suitable material and can include any number of desired layers. For example, in Figure 2 and Figure 3 In the illustrated embodiment, the layer of the absorbent core 3 can include an outermost top layer 31 and a bottom layer 32, wherein the top layer 31 is the layer facing the wearer's body, and the bottom layer 32 is the layer facing the wearer's clothing. The top layer 31 and the bottom layer 32 can be made of the same material, or the top layer 31 and the bottom layer 32 can be configured to have different absorption characteristics. In one embodiment, the top layer 31 and the bottom layer 32 can all be made of a liquid-permeable nonwoven sheet.

[0042] The absorbent material of the absorbent core 3 and the core support layer are sandwiched between the top layer 31 and the bottom layer 32. The support layer 35 can be made of, for example, a hot air nonwoven sheet, and can be a single layer or a multi-layer laminate structure. The support layer 35 can have a basis weight of about 25-50gsm, preferably a basis weight of 30-45gsm. The hardness of the support layer 35 affects the feel of the absorbent core 3, and further affects the overall softness of the absorbent article 1. For this reason, a cut is designed on the support layer 35 to reduce its hardness. Specifically, if Figure 3 As shown, the support layer 35 has a first surface 351 facing the top layer 31 and a second surface 352 facing the bottom layer 32, and each incision extends from the first surface 351 to the second surface 352, thereby penetrating the support layer 35. The incision can effectively reduce the hardness of the support layer 35, thereby improving the softness of the absorbent article 1, and at the same time, it will not substantially reduce the strength of the support layer material or the absorbent core, which is sufficient to adapt to the existing production process and avoid being torn.

[0043] A plurality of cutouts can be formed in the support layer 35 in different shapes and arrangements as required. When body excrement flows into the guide layer 5 through the top sheet 4 of the base sheet 2 and is evenly distributed to the absorbent core 3 by the guide layer 5 until it is intercepted by the absorbent material in the absorbent core 3, the presence of the plurality of cutouts in the support layer 35 allows the absorbent core 3 to receive liquid at a higher rate, effectively improving the absorption efficiency and absorption amount of the absorbent article 1, forming an "instantaneous absorption" effect, and also helping to ensure the dryness of the core.

[0044] As mentioned above, the top sheet 4, the guide layer 5 and the support layer 35 can be provided with cutouts. In the same embodiment, the top sheet interface, the guide layer cutout and the support layer cutout can coexist, or at least one can be selected to exist. The cutouts can be arranged in these layer components in any suitable form. Only a part of them is introduced below by way of example.

[0045] In one embodiment, the cuts are linear, so that each cut can be considered as a "linear slit" that runs through the sheet member. These linear cuts can be arranged at even intervals on the sheet member and parallel to each other. Alternatively, these linear cuts can be arranged in a manner that two adjacent cuts are angled.

[0046] The linear cuts may all extend along the transverse direction T of the absorbent article 1. Alternatively, the linear cuts may all extend along the longitudinal direction L of the absorbent article 1. Alternatively, the linear cuts may all extend at an angle relative to the transverse direction T and the longitudinal direction L (i.e., extend obliquely). Of course, in the same sheet member, the extension direction of the linear cuts may also be a combination of at least two of the above, such as a portion of the linear cuts extending obliquely, while another portion of the linear cuts extending along the transverse direction T (or longitudinal direction L) of the absorbent article 1.

[0047] In another embodiment, the cutouts on the sheet member are arcuate, which can also be regarded as an "arc-shaped slit" running through the sheet member. These arc-shaped cutouts can be evenly spaced.

[0048] The arcuate cuts may all be oriented with their arc vertices toward the front region 21 of the absorbent article 1. Alternatively, the arcuate cuts may all be oriented with their arc vertices toward the back region 22 of the absorbent article 1. Alternatively, the arcuate cuts 353 may all be oriented with their arc vertices toward the side edges of the absorbent article 1. Of course, arcuate cuts with different arc vertices may be arranged in the same sheet member.

[0049] In yet another embodiment, the cutouts are wavy in shape on the sheet member, which can also be considered as a "wavy slit" that passes through the support layer 35. These wavy cutouts can be evenly spaced.

[0050] The wavy cuts may all be arranged along the transverse direction T of the absorbent article 1. Alternatively, the wavy cuts may all be arranged along the longitudinal direction L of the absorbent article 1. Alternatively, the wavy cuts may all be arranged at an angle relative to the transverse direction T and the longitudinal direction L (i.e., arranged obliquely). Of course, in the same sheet member, the arrangement direction of the wavy cuts may also be a combination of at least two of the above, such as a portion of the wavy cuts being arranged obliquely, while another portion of the wavy cuts being arranged along the transverse direction T (or longitudinal direction L) of the absorbent article 1.

[0051] In another embodiment, the cutouts are dot-shaped on the sheet member. These dot-shaped cutouts can be evenly spaced and arranged in an array or staggered on the sheet member.

[0052] The above-mentioned straight line, arc, wave and dot incisions can be combined in any way to form an incision with a comprehensive shape. For example, in one embodiment, the incision is a combination of a straight line and a dot, wherein the dot is located at the end or the middle of the straight line. In another embodiment, the incision is a combination of a straight line and an arc, wherein the straight line and the arc meet at the end.

[0053] The cutouts in the sheet member may be arranged in an array, or arranged in rows.

[0054] When arranged in array, all incisions can be arranged at even intervals on the lamella member, and a group of incisions roughly arranged in a square shape can be constructed. This means that the distance between any incision and other adjacent incisions is the same. In addition, two adjacent incisions can be aligned horizontally or vertically, or can be staggered.

[0055] When arranged in rows, the cuts in two adjacent rows may be aligned. This means that any cut in any row is aligned with the corresponding cut in the adjacent row. In addition, the cuts in two adjacent rows may not be aligned. This means that any cut in any row is located between two adjacent cuts in the adjacent row. In the case where the cuts in two adjacent rows are not aligned, the cuts in two rows across the rows may be aligned. In multiple rows of cuts, the cuts in one row may be evenly spaced, and the two rows may be spaced apart by a large distance.

[0056] The otch on the lamella component can also be arranged in groups, and each group of otch arranges the pattern such as circle, oval etc. When arranged in groups, the otch of different groups can have different intervals, and also can have different number of otches.This means that a plurality of regions can be formed in the lamella component, and the otch density contained in each region is different.For example, the central area of ​​the lamella component or the region that is expected to contact body discharge for the first time contain higher otch density, and the peripheral area around the central area of ​​the lamella component or the region that is expected to contact body discharge for the first time contains lower otch density.For another example, the lamella component contains lower otch density near the front zone 21, and has higher otch density near the region of the rear zone.

[0057] Figure 4 and Figure 5 Taking the support layer 35 of the absorbent core 3 as an example, two different cutout arrangements are specifically shown. In the illustrated embodiment, the multiple cutouts 353 of the support layer 35 are arranged in groups, each group includes four linear cutouts 353, and each cutout 353 extends in the transverse direction of the support layer 35. The four cutouts 353 in the same group are arranged at even intervals, and each group of cutouts is obliquely arranged on the support layer 35 as a whole. In other words, in the same group, two adjacent cutouts 353 are staggered by a certain size in the longitudinal and transverse directions of the support layer 35. Figure 4 and Figure 5 These can be seen as two incision arrangements that are mirror images of each other.

[0058] The cuts in the sheet member may be formed by any suitable process, such as laser cutting or die cutting, or other cutting methods.

[0059] The absorbent material is directly bonded to the support layer 35. According to the embodiment of the present disclosure, the absorbent material can be bonded to the support layer 35 in two layers, thereby having a good bonding strength. Figure 2As shown, a first absorbent layer 33 is bonded to a first surface 351 of the support layer 35 facing the top layer 31, and a second absorbent layer 34 is bonded to a second surface 352 of the support layer 35 facing the bottom layer 32. Suitable absorbent materials can be selected for the first absorbent layer 33 and the second absorbent layer 34, such as super absorbent polymer SAP. SAP should refer to a polymer that absorbs and retains a very large amount of liquid relative to its own mass. Cross-linked water-absorbent polymers classified as hydrogels absorb aqueous solutions through hydrogen bonds and other polar forces with water molecules. The water absorption capacity of SAP is partly based on ionicity (an index of the ion concentration of the aqueous solution) and the polar functional groups of SAP with water affinity. SAP is generally made by polymerizing acrylic acid mixed with sodium hydroxide in the presence of an initiator to form polyacrylic acid sodium salt (sometimes called sodium polyacrylate). Other materials can also be used to make super absorbent polymers, such as polyacrylamide copolymers, ethylene maleic anhydride copolymers, cross-linked carboxymethyl cellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide and starch graft copolymers of polyacrylonitrile. SAP can be present in absorbent products in the form of particles or fibers.

[0060] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0061] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations made by any technician in the field without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An absorbent core, characterized in that: include: a top layer (31) configured to face toward the body of a wearer; a bottom layer (32) arranged opposite to the top layer (31) and configured to face the garment of a wearer; an absorption layer, located between the top layer (31) and the bottom layer (32); A support layer (35) is provided to join the absorbent layer between the top layer (31) and the bottom layer (32), wherein the support layer (35) is formed with a plurality of cuts, the cuts extending continuously from a first surface (351) of the support layer (35) facing the top layer (31) to a second surface (352) of the support layer (35) facing the bottom layer (32).

2. The absorbent core according to claim 1, characterized in that The absorbent layer comprises a first absorbent layer (33) joined between the top layer (31) and the support layer (35) and a second absorbent layer (34) joined between the support layer (35) and the bottom layer (32), wherein at least one of the first absorbent layer (33) and the second absorbent layer (34) comprises a superabsorbent polymer.

3. An absorbent article having a transverse direction (T) and a longitudinal direction (L) which are perpendicular to each other, characterized in that: The absorbent article comprises: A base sheet (2), comprising a top sheet (4) and a bottom sheet (6); An absorbent core (3) is attached to the base sheet (2) and is located between the top sheet (4) and the back sheet (6), wherein the absorbent core (3) is the absorbent core according to claim 1 or 2.

4. The absorbent article according to claim 3, characterized in that The absorbent article further comprises a distribution layer (5) located between the top sheet (4) and the absorbent core (3), wherein at least one of the top sheet (4) and the distribution layer (5) has a plurality of cutouts.

5. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: The cutout is configured in at least one of the following ways: extending linearly, extending in an arc, extending in a wave shape, or being punctiform.

6. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: The cutouts are configured in at least one of the following ways: arranged in the longitudinal direction of the absorbent core, arranged in the transverse direction of the absorbent core, and arranged at an angle relative to the transverse and longitudinal directions of the absorbent core.

7. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: Among the plurality of incisions, two adjacent incisions are arranged parallel to or at an angle to each other.

8. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: The plurality of cutouts form a plurality of regions having different cutout densities.

9. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: The plurality of cutouts are arranged in a plurality of rows, wherein a cutout in any row is located between two adjacent cutouts in an adjacent row.

10. The absorbent core according to claim 1 or 2, or the absorbent article according to claim 3 or 4, characterized in that: The plurality of cutouts are arranged in a plurality of rows, wherein a cutout in any row is aligned with a cutout in an adjacent row.