CN223323680U - An absorbent product - Google Patents

Abstract

The present disclosure relates to an absorbent article comprising a topsheet, a baffle, a backsheet, and an absorbent core. The absorbent core is arranged between the guide layer and the bottom film layer, the absorbent core is formed by compounding a weak hydrophilic layer, an absorbent layer and a diffusion layer, wherein the absorbent layer is arranged below the weak hydrophilic layer, the diffusion layer is arranged below the absorbent layer and is made of melt-blown materials, the hydrophilicity of the diffusion layer is higher than that of the weak hydrophilic layer, and the mobility of liquid in the diffusion layer is at least higher than that of the liquid in the weak hydrophilic layer. The liquid can spread quickly after being absorbed by the absorbent core to the bottom without reverse osmosis upwards, thereby improving the dryness of the surface of the absorbent article.

Description

Absorbent product

Technical Field

The present disclosure relates to the field of sanitary articles, and in particular to an absorbent article.

Background

The absorbent cores of absorbent articles have a number of different structures in the prior art. The absorbent core can have different layers, such as three layers, five layers, seven layers and the like, and can also be made of different raw materials, such as polymer, dust-free paper, fluffy non-woven fabric, spunlaced non-woven fabric, wet strength paper and the like. The absorbent cores formed by compounding multiple layers of raw materials generally have a relatively heavy structure with a grammage of about 180-500 gsm and a poor user experience.

In addition, the absorbent cores of the prior art are mostly made of short fibers, and thus have poor diffusion effects. The liquid is absorbed in the middle of the absorbent core and cannot continue to diffuse to the two ends, resulting in waste of materials. The absorption capacity of the upper layer and the lower layer of the absorption core body made of hydrophilic materials is not quite different, and an absorption gradient cannot be formed. This makes the absorbent core prone to reverse osmosis after absorbing liquid and does not keep the surface dry.

Disclosure of utility model

The present disclosure provides an absorbent article in order to solve the problems in the prior art.

According to a first aspect of the present disclosure, there is provided an absorbent article comprising:

The surface layer is arranged on one side close to the human body;

the diversion layer is arranged below the surface layer;

The bottom film layer is arranged on one side far away from a human body and is configured to be positioned below the diversion layer;

the absorbent core is arranged between the guide layer and the bottom film layer and is formed by compounding a weak hydrophilic layer, an absorbent layer and a diffusion layer;

the absorbing layer is arranged below the weak-philic layer and comprises absorbing materials;

The diffusion layer is disposed below the absorbent layer and is configured to be made of a meltblown material, the diffusion layer having a hydrophilicity that is greater than the hydrophilicity of the weak hydrophilic layer, and the mobility of a liquid in the diffusion layer being at least greater than its mobility in the weak hydrophilic layer.

In one embodiment of the disclosure, the weak hydrophilic layer is a melt-blown non-woven fabric, the water absorption rate of the melt-blown non-woven fabric is 5-15, and the gram weight of the melt-blown non-woven fabric is 15-80 gsm.

In one embodiment of the present disclosure, the weak hydrophilic layer comprises a water repellent spunbond nonwoven, a hydrophilic spunbond nonwoven, the water repellent spunbond nonwoven being disposed over the hydrophilic spunbond nonwoven.

In one embodiment of the present disclosure, the weak hydrophilic layer is provided with a plurality of flow directing holes configured to pass through the water repellent spun-bonded nonwoven fabric, hydrophilic spun-bonded nonwoven fabric.

In one embodiment of the present disclosure, the absorbent material is at least one of a high molecular water absorbing resin or a super absorbent fiber, and the gram weight of the absorbent material is higher than 10 gsm.

In one embodiment of the present disclosure, the diffusion layer has a water absorption capacity of 5 to 20 and a grammage of 15 to 250 gsm.

In one embodiment of the present disclosure, the diffusion layer has a water absorption capacity of 8 to 15 and a grammage of 60 to 300gsm.

In one embodiment of the present disclosure, a side of the cover adjacent to the absorbent core is configured to cover the side of the facing layer and a side distal to the absorbent core is configured to be laminated over the carrier film layer.

In one embodiment of the present disclosure, the surface layer and/or the absorbent core contains one of tea polyphenol, tea tree essential oil, bamboo charcoal fiber, vegetable tannin, grapefruit extract, apigenin, aloe, chitosan, chamomile, quaternary ammonium salt, graphene, activated carbon, probiotics, fructus cnidii, purslane, prinsepia utilis royle, radix sophorae flavescentis, dipotassium glycyrrhizinate, centella asiatica, gentian, wormwood, sodium hyaluronate, ceramide and scutellaria baicalensis.

In one embodiment of the present disclosure, the absorbent core has a grammage of 100-450 gsm.

One beneficial effect of the present disclosure is that an absorption gradient is formed in the absorbent core by setting the side of the absorbent core adjacent to the facing layer as a weak hydrophilic layer having lower hydrophilicity and poorer diffusivity, and setting the side of the absorbent core adjacent to the carrier film layer as a diffusion layer having higher hydrophilicity and stronger diffusivity. The liquid can be quickly diffused after being absorbed by the absorption core body to the bottom, and can not be reversely permeated upwards, so that the dryness of the surface of the absorption product is improved, and the use experience of a user is improved.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic cross-sectional view of an absorbent article according to one embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of an absorbent article according to a second embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic cross-sectional view of an absorbent article according to a third embodiment of the present disclosure.

The one-to-one correspondence between the component names and the reference numerals in fig. 1 to 4 is as follows:

1. Surface layer, 211, melt-blown non-woven fabric, 212, water-repellent spun-bonded non-woven fabric, 213, hydrophilic spun-bonded non-woven fabric, 214, diversion holes, 22, absorbing material, 23, diffusion layer, 24, composite layer, 3, bottom film layer, 4, protective edge layer and 5, diversion layer.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.

Herein, "first", "second", etc. are used only for distinguishing one another, and do not denote any order or importance, but rather denote a prerequisite of presence.

Herein, "equal," "same," etc. are not strictly mathematical and/or geometric limitations, but also include deviations that may be appreciated by those skilled in the art and allowed by fabrication or use, etc.

The present disclosure provides an absorbent article, which may be a baby diaper, a baby pull-up diaper, an adult care product, a sanitary napkin, a panty liner, or a menstrual pant, etc., and in the embodiment of the present application, the absorbent article is specifically described by taking the sanitary napkin as an example.

The absorbent article provided by the present disclosure includes a facing layer, a baffle layer, a carrier film layer, and an absorbent core. The surface layer is arranged on one side close to the human body, and specifically, the surface layer is a material directly close to the human body and is generally made of a soft, skin-friendly and liquid-conducting material. The water conservancy diversion layer sets up in the below of surface course, and the water conservancy diversion layer is favorable to following the quick water conservancy diversion of surface course downwards with liquid, and helps making the liquid unidirectional flow, can prevent that liquid from oozing back to the surface course. The bottom film layer is arranged on one side far away from a human body and is configured to be positioned below the guide layer, the bottom film layer is made of a water-repellent material, and liquid can be blocked when flowing downwards to the bottom film layer in the absorbent product, so that the liquid is prevented from leaking from the lower part of the absorbent product.

The absorption core body is arranged between the diversion layer and the bottom film layer, and liquid can be absorbed by the absorption core body after passing through the surface layer and the diversion layer and stored in the absorption core body. The absorbent core has a thickness capable of absorbing and storing a quantity of liquid. The absorbent core of the present application is constructed of a composite of a weak hydrophilic layer, an absorbent layer, and a diffusion layer, wherein the weak hydrophilic layer is located on the side adjacent to the flow guiding layer, the absorbent layer is disposed below the weak hydrophilic layer, and the diffusion layer is disposed below the absorbent layer, i.e., on the side adjacent to the carrier film layer.

The absorption layer comprises an absorption material, and specifically, the absorption material is at least one of a high molecular water absorption resin or super water absorption fiber. Specifically, a high molecular water absorbent resin (SAP) is a functional polymer material having super water absorbent capacity and high water retention. It can absorb water several hundred times or even thousands times its own weight and has a strong water-retaining capacity. In addition, the high molecular water absorbing resin (SAP) material has the characteristics of no toxicity, no harm and no pollution, and is a safe and reliable material. Superabsorbent fibers (SAF) are a fibrous superabsorbent material. The SAF polymer is dried and solidified to form filaments, and then cooled and cut into staple fibers of a range of lengths to form a fibrous material having an extremely strong moisture absorbing capacity.

The diffusion layer is configured to be made of a meltblown material. The diffusion layer may be sprayed with a hydrophilic oil agent or hydrophilic master batches may be added to the diffusion layer so that the hydrophilicity of the diffusion layer is higher than that of the weak hydrophilic layer. The mobility of the liquid in the diffusion layer is at least greater than its mobility in the weak hydrophilic layer.

The absorbent gradient is formed in the absorbent core by setting the side of the absorbent core, which is close to the top layer, as a weak hydrophilic layer with low hydrophilicity and poor diffusivity, and setting the side of the absorbent core, which is close to the bottom film layer, as a diffusion layer with high hydrophilicity and strong diffusivity. The liquid can be quickly diffused after being absorbed by the absorption core body to the bottom, and can not be reversely permeated upwards, so that the dryness of the surface of the absorption product is improved, and the use experience of a user is improved.

The following describes specific embodiments of the present disclosure with reference to the drawings and three examples.

Example 1

Referring to fig. 1, this embodiment provides an absorbent article comprising a topsheet 1, a baffle 5, a backsheet 3 and an absorbent core. The surface layer 1 is arranged on one side close to the human body, specifically, the surface layer 1 is a material directly close to the human body, and is usually made of a soft, skin-friendly and liquid-conducting material. Specifically, the facing layer 1 in this embodiment adopts a hot air nonwoven fabric.

The diversion layer 5 is arranged below the surface layer, the diversion layer 5 is beneficial to rapidly downwards diversion of liquid from the surface layer 1, and is beneficial to enabling the liquid to flow unidirectionally, so that the liquid can be prevented from reversely seeping back to the surface layer 1. The diversion layer 5 can be made of hot air non-woven fabrics, dust-free paper, spun-laced non-woven fabrics and other materials. The baffle 5 enhances the absorption of the absorbent article.

The bottom film layer 3 is disposed on a side far away from the human body and is configured to be located below the diversion layer 5, the bottom film layer 3 is made of a water-repellent material, specifically, the bottom film layer 3 in the embodiment adopts a PE breathable film, and liquid is blocked when flowing down to the bottom film layer 3 in the absorbent product, so that the liquid is prevented from leaking from below the absorbent product.

The absorption core is arranged between the diversion layer 5 and the bottom film layer 3, and the liquid can be absorbed by the absorption core after passing through the surface layer 1 and the diversion layer 5 and stored in the absorption core. The absorbent core has a thickness capable of absorbing and storing a quantity of liquid. As shown in fig. 1, the absorbent core of the present application is constructed by compositing a weak hydrophilic layer, an absorbent layer and a diffusion layer 23, wherein the weak hydrophilic layer is located on the side adjacent to the flow guiding layer 5, the absorbent layer is disposed under the weak hydrophilic layer, and the diffusion layer 23 is disposed under the absorbent layer, that is, on the side adjacent to the base film layer 3.

The weak hydrophilic layer is capable of locally absorbing liquid, which is not easily diffused in the weak hydrophilic layer, but rapidly flows down to the absorbent layer. In one embodiment of the present disclosure, the weak hydrophilic layer is a melt-blown non-woven fabric 211, and specifically, the present example uses a hydrophilic oil agent to make the melt-blown non-woven fabric 211 have weak affinity, and the hydrophilic oil agent may be sprayed onto the lower layer of the melt-blown non-woven fabric 211, and the hydrophilic oil agent may be completely immersed into the melt-blown non-woven fabric 211, so that it has weak affinity. The melt-blown nonwoven fabric 211 has a water absorption ratio of 5 to 15 and a grammage of 15 to 80 gsm.

The absorbent layer includes an absorbent material 22, and specifically, the absorbent material 22 is at least one of a high molecular absorbent resin or superabsorbent fiber. Specifically, the high molecular water-absorbing resin (SAP) is a functional high molecular material with super water-absorbing capacity and high water-retaining property, and the super water-absorbing fiber (SAF) is a fiber-type super water-absorbing material. In one embodiment of the present disclosure, the grammage of the absorbent material 22 is greater than 10 gsm. The adoption of the high molecular water absorbing resin (SAP) and/or the Super Absorbent Fiber (SAF) as the absorption layer can effectively improve the overall water absorption rate of the absorption core body, and can lock the flowing liquid, so that the liquid absorption function of the absorption core body is ensured.

The diffusion layer 23 is configured to be made of a meltblown material. The diffusion layer may be sprayed with a hydrophilic oil agent or hydrophilic master batches may be added to the diffusion layer so that the diffusion layer 23 is more hydrophilic than the weak hydrophilic layer. In this embodiment, 5% -10% of hydrophilic master batch may be added to the diffusion layer 23, or at least the side of the diffusion layer 23 facing the surface layer 1 is sprayed with hydrophilic oil, so that the diffusion layer 23 has strong hydrophilic performance.

In one embodiment of the present disclosure, the diffusion layer 23 has a water absorption capacity of 5 to 20 and a grammage of 15 to 250 gsm. Preferably, the diffusion layer 23 has a water absorption capacity of 8 to 15 and a gram weight of 60 to 300 gsm.

The mobility of the liquid in the diffusion layer 23 is at least greater than its mobility in the weak hydrophilic layer. The liquid flowing down from the absorbent layer to the diffusion layer 23 can be rapidly dispersed, so that the liquid is sufficiently and uniformly absorbed. The diffused liquid is not easy to reverse osmosis upwards, thereby realizing the dryness of the surface layer 1. For the whole absorbent core, the liquid diffusion area of the upper layer (i.e. weak-affinity layer) of the core is smaller, and the liquid diffusion area of the lower layer (i.e. diffusion layer 23) is larger, so that the effect of single-point infiltration is formed, and the liquid can be guided to the lower layer in one direction in the absorbent core.

The present disclosure forms an absorption gradient in an absorbent core by providing the side of the absorbent core adjacent to the top sheet 1 as a weak hydrophilic layer having low hydrophilicity and poor diffusivity, and providing the side of the absorbent core adjacent to the bottom sheet 3 as a diffusion layer 23 having high hydrophilicity and strong diffusivity. The liquid can be quickly diffused after being absorbed by the absorption core body to the bottom, and can not be reversely permeated upwards, so that the dryness of the surface of the absorption product is improved, and the use experience of a user is improved.

In one embodiment of the present disclosure, the weak hydrophilic layer, the absorbent layer and the diffusion layer 23 are glued together, thereby forming a complete absorbent core. The three-layer structure of the absorption core body is firmly fixed, the connection effect is good, the absorption core body is not easy to stick together, and the integrity and deformation resistance of the absorption core body are ensured.

In one embodiment of the present disclosure, the absorbent core has a grammage of 100-450 gsm. Compared with the absorption core body of 180-500 gsm in the prior art, the three-layer structure is thinner and lighter on the premise of ensuring the absorption effect, so that the overall gram weight of the absorption core body is reduced, and the weight of an absorption product is further reduced. The absorbent product is lighter and thinner, and the use experience of a user is improved.

In one embodiment of the present disclosure, as shown in fig. 1, the absorbent article further comprises a cover layer 4, the side of the cover layer 4 adjacent to the absorbent core being configured to cover the side of the facing layer 1, and the side remote from the absorbent core being configured to be composite over the carrier film layer 3. The protective edge layer 4 can be made of hot air non-woven fabrics. The two guard layers 4 may be provided, and the two guard layers 4 cover the two sides of the face layer 1, respectively. The side of the two border layers 4 remote from the absorbent core extends outwards to be composited with the carrier film layer 3 so as to completely encase the absorbent core therein. It is understood that when a user wears an absorbent article such as a sanitary napkin, the absorbent core is squeezed and liquid in the absorbent core easily leaks from the sides under pressure. The edge of the absorbent core is sealed by the edge protection layer 4, so that the leakage-proof effect is achieved.

In one embodiment of the present disclosure, the top sheet 1 and/or the absorbent core contains at least one of tea polyphenols, tea tree essential oil, bamboo charcoal fiber, vegetable tannins, grapefruit extract, apigenin, aloe, chitosan, chamomile, quaternary ammonium salt, graphene, activated carbon, probiotics, fructus cnidii, purslane, prinsepia utilis royle, radix sophorae flavescentis, dipotassium glycyrrhizinate, centella asiatica, gentian, wormwood, sodium hyaluronate, ceramide, and scutellaria baicalensis. It is understood that menstrual blood contains nutrients such as proteins, amino acids, abundant enzymes and antibodies, and bacteria are very likely to grow. If the interval time between each time of changing the sanitary towel is long, the accumulated menstrual blood on the sanitary towel is easy to generate peculiar smell. Furthermore, in the case of sanitary napkins worn for a long period of time, skin-sensitive users are prone to slight allergic reactions. Thus, bacteriostatic, deodorizing and anti-sensitization components may be added to the topsheet 1 and/or absorbent core. For example, a polymer water absorbent resin (SAP) or Super Absorbent Fiber (SAF) containing deodorizing component (such as tea polyphenols, tea tree essential oil, bamboo charcoal fiber, vegetable tannin, fructus Citri Grandis extract, active carbon, etc.) may be added to the absorption layer of the absorption core, antibacterial component (such as apigenin, aloe, chitosan, flos Matricariae Chamomillae, quaternary ammonium salt, graphene, tea polyphenols, etc.) may be added to the weak affinity layer and/or diffusion layer 23, and antiallergic component such as fructus Cnidii, herba Portulacae, prinsepiae utilis, radix Sophorae Flavescentis, flos Matricariae Chamomillae, dipotassium glycyrrhizinate, centella asiatica, radix Gentianae, folium Artemisiae Argyi, sodium hyaluronate, ceramide, radix Scutellariae may also be added to the surface layer 1 or absorption core. It should be noted that the deodorizing component, the antibacterial component and the antiallergic component may not be limited to the above components, and these components can slow down the growth rate of bacteria, play the role of deodorizing, prevent allergy of the user, and promote the user experience.

Example two

The present embodiment also provides an absorbent article, which is different from the first embodiment in that the weak-hydrophilic layer in the absorbent core is made of different materials and has the same structure as the first embodiment, and the details of the other structures are not repeated here.

Referring to fig. 2 and 3, the weak hydrophilic layer of the present embodiment includes a water-repellent spunbond nonwoven fabric 212, a hydrophilic spunbond nonwoven fabric 213, and the water-repellent spunbond nonwoven fabric 212 is disposed above the hydrophilic spunbond nonwoven fabric 213. That is, the water-repellent spun-bond nonwoven fabric 212 is disposed on the side near the baffle layer 5, and the hydrophilic spun-bond nonwoven fabric 213 is disposed on the side near the absorbent layer. The structure of the water-repellent spun-bond nonwoven fabric 212, the hydrophilic spun-bond nonwoven fabric 213 arranged up and down gives the weak hydrophilic layer an absorption gradient, and the liquid can flow toward the more hydrophilic material, thereby making the liquid easily flow from the facing layer 1 toward the absorbent layer. The liquid in the absorbent core is not easy to reverse osmosis, and the surface layer 1 can keep dry and comfortable.

In one embodiment of the present disclosure, as shown in fig. 3, a plurality of deflector holes 214 are provided on the weak hydrophilic layer, and the deflector holes 214 are configured to penetrate through the water-repellent spun-bond non-woven fabric 212, the hydrophilic spun-bond non-woven fabric 213. The deflector holes 214 may be formed by embossing, and the liquid may be deflected through the deflector holes 214, thereby enabling the liquid to be absorbed downward more rapidly.

It is understood that the water-repellent spun-bond nonwoven fabric 212 itself has poor water absorption, and that the absence of the structure of the diversion holes 214 may result in a low absorption efficiency of the absorbent core, and the liquid accumulated in the facing layer 1 may easily leak. In order to improve the absorption efficiency, the application is provided with the diversion holes 214 on the weak hydrophilic layer, and the diameter of the diversion holes 214 is small, so that the water locking function of the absorption core body is not affected.

Example III

The present embodiment also provides an absorbent article, and the difference between the present embodiment and the first embodiment is that the absorbent core has a different structure, and other structures are identical to those of the first embodiment, and are not described herein.

Referring to fig. 4, the absorbent core of the present embodiment includes a composite layer 24 and a diffusion layer 23. Wherein the composite layer 24 is located at a side adjacent to the flow guiding layer 5, and the diffusion layer 23 is disposed below the composite layer 24, that is, at a side adjacent to the carrier film layer 3.

In one embodiment of the present disclosure, the composite layer 24 may be a composite core material of multiple layers of material having a grammage of 120 or more gsm. Specifically, the composite layer 24 may include an upper dust free paper, a middle SAP material, a lower dust free paper, or the composite layer 24 may include an upper wet strength paper, a middle upper SAP material, a middle lower fluff pulp, a lower dust free paper, or the composite layer 24 may include an upper dust free paper, a middle SAP material, a lower melt blown nonwoven. The composite layer 24 may also have other composite structures, which are not specifically limited by the present disclosure. The composite layer 24 may absorb liquid and a large amount of liquid may be stored within the composite layer 24.

Below the composite layer 24 is arranged a diffusion layer 23, the diffusion layer 23 being constructed from a meltblown material, which has a very strong hydrophilic property. The mobility of the liquid in the diffusion layer 23 is greater than its mobility in the composite layer 24. The liquid flowing down from the composite layer 24 to the diffusion layer 23 can be rapidly diffused so that the liquid is sufficiently and uniformly absorbed. The diffused liquid is not easy to reverse osmosis upwards, thereby realizing the dryness of the surface layer 1. For the whole absorbent core, the liquid diffusion area of the composite layer 24 is smaller, and the liquid diffusion area of the diffusion layer 23 is larger, so that a single-point infiltration effect is formed, and liquid can be unidirectionally guided to the lower layer in the absorbent core.

The present disclosure forms an absorption gradient in an absorbent core by providing the side of the absorbent core adjacent to the facing layer 1 as a composite layer 24 having poor diffusivity and providing the side of the absorbent core adjacent to the carrier film layer 3 as a diffusion layer 23 having strong diffusivity. The liquid can be quickly diffused after being absorbed by the absorption core body to the bottom, and can not be reversely permeated upwards, so that the dryness of the surface of the absorption product is improved, and the use experience of a user is improved.

Comparative example

1. Test materials:

Test group the absorbent articles provided in example one.

Control group an absorbent article whose core was a conventional core made of fluff pulp was identical to the first embodiment in all other constructions.

2. Gram weight comparative test

The absorbent articles of the test and control groups were weighed using an electronic balance, respectively. The weighing results were as follows:

The absorbent articles of the test group had a grammage of 145 gsm;

The absorbent articles of the control group had a grammage of 155 gsm.

Therefore, the absorbent product provided by the application has the advantages that the overall gram weight of the absorbent core body is reduced by arranging the lighter and thinner three-layer structure, and the weight of the absorbent product is further reduced. The application provides an absorbent product which is lighter and thinner than the traditional absorbent product, and improves the use experience of users.

3. Diffusion contrast test

The test method comprises pouring equal amount of pure water or synthetic standard liquid onto the absorbent products of test group and control group respectively, and measuring the liquid diffusion length of the two absorbent products after the liquid absorption is completed.

The test specifically comprises three groups, namely pouring 10 ml of pure water, pouring 5 ml of synthesis standard solution and pouring 15 ml of synthesis standard solution. Each set of experiments should be performed at least three times and the diffusion length results of the multiple measurements averaged. The test results are shown in table 1:

TABLE 1 diffusion length vs. test results

As can be seen from table 1, the liquid was less diffusive in the absorbent article of the control group than in the absorbent article of the test group, and the liquid was more likely to diffuse in the absorbent article of the test group. Further, the experimenter also touches the surface layers of the absorbent products of the test group and the control group respectively when measuring the diffusion length, the surface layers of the absorbent products of the test group are dry and comfortable, and the surface layers of the absorbent products of the control group have obvious wet hand feeling. Therefore, the absorbent product provided by the application has strong diffusivity, and the absorption core body with the absorption gradient is arranged, so that liquid can be rapidly dispersed after being absorbed, reverse osmosis can not be carried out upwards, the surface of the absorbent product can be kept dry, and the use experience of a user is improved.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (10)

1. An absorbent article, comprising:

The surface layer (1) is arranged on one side close to the human body;

The diversion layer (5) is arranged below the surface layer (1);

A bottom film layer (3) arranged on one side far away from the human body and configured to be positioned below the diversion layer (5);

an absorbent core disposed between the guide layer (5) and the base film layer (3), the absorbent core being configured to be formed by compositing a weak-affinity layer, an absorbent layer, and a diffusion layer (23);

Wherein the absorbent layer is disposed below the weak hydrophilic layer, the absorbent layer comprising an absorbent material (22);

The diffusion layer (23) is arranged below the absorbent layer and is constructed from a meltblown material, the diffusion layer (23) having a hydrophilicity that is higher than the hydrophilicity of the weak hydrophilic layer, and the mobility of the liquid in the diffusion layer (23) being at least greater than its mobility in the weak hydrophilic layer.

2. The absorbent article according to claim 1, wherein the weak hydrophilic layer is a meltblown nonwoven (211), the meltblown nonwoven (211) having a water absorption capacity of 5-15 and a grammage of 15-80 gsm.

3. The absorbent article according to claim 1, wherein the weak hydrophilic layer comprises a water repellent spunbond nonwoven (212), a hydrophilic spunbond nonwoven (213), the water repellent spunbond nonwoven (212) being disposed above the hydrophilic spunbond nonwoven (213).

4. An absorbent article according to claim 3, characterized in that the weak hydrophilic layer is provided with a plurality of baffle holes (214), the baffle holes (214) being configured to extend through the water-repellent spunbond nonwoven (212), hydrophilic spunbond nonwoven (213).

5. The absorbent article according to claim 1, wherein the absorbent material (22) is at least one of a high molecular weight water absorbing resin or superabsorbent fiber, and wherein the absorbent material (22) has a grammage of greater than 10 gsm.

6. The absorbent article according to claim 1, characterized in that the diffusion layer (23) has a water absorption capacity of 5-20 and a grammage of 15-250 gsm.

7. The absorbent article as claimed in claim 6, characterized in that the diffusion layer (23) has a water absorption capacity of 8-15 and a grammage of 60-300 gsm.

8. The absorbent article according to claim 1, further comprising a border layer (4), wherein a side of the border layer (4) adjacent to the absorbent core is configured to cover a side of the facing layer (1), and a side remote from the absorbent core is configured to be composited over the carrier film layer (3).

9. The absorbent article according to claim 1, wherein the surface layer (1) and/or the absorbent core contains one of tea polyphenols, tea tree essential oil, bamboo charcoal fiber, vegetable tannins, grapefruit extract, apigenin, aloe, chitosan, chamomile, quaternary ammonium salt, graphene, activated carbon, probiotics, fructus cnidii, purslane, prinsepia utilis royle, radix sophorae flavescentis, dipotassium glycyrrhizinate, centella asiatica, gentian, mugwort, sodium hyaluronate, ceramide and scutellaria baicalensis.

10. The absorbent article of claim 1 wherein the absorbent core has a grammage of 100 to 450 gsm.