CN218529064U - Absorbent article - Google Patents

Abstract

The embodiment of the utility model provides an absorption article, which comprises a body, the body includes surface course, absorbed layer and bottom, and the body includes main absorption region, and the absorbed layer includes middle part district and third knurling district, fourth knurling district, and the third knurling district includes many third linear indentation that are formed by the adjacent range of a plurality of third indentation, and, the fourth knurling district includes many fourth linear indentation that are formed by the adjacent range of a plurality of fourth indentation, the aspect ratio of third indentation and fourth indentation be 2-10.

Description

Absorbent article

Technical Field

The utility model relates to the field of absorbing articles, in particular to absorbing articles such as sanitary towels, protecting pads, paper diapers and the like.

Background

Absorbent articles such as sanitary napkins, panty liners, and diapers are widely used in daily life, and generally, these absorbent articles include a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core interposed between the top sheet and the back sheet.

In order to improve the absorption rate, at present, for example, a diversion trench or a grid structure is pressed on an absorption article, so that the density of a region of the absorption article corresponding to the diversion trench or the grid structure is increased, and the tube diameter of a capillary tube is reduced to improve the absorption rate.

Accordingly, there is a need to provide an absorbent article having rapid absorbency and reduced occurrence of side leakage or side leakage.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an absorbing article for use to solve the technical problem.

An absorbent article comprises a body, wherein the body comprises a surface layer, an absorbent layer and a bottom layer which are arranged in a stacked manner, the body comprises a main absorbent region, the absorbent layer comprises a middle region corresponding to the main absorbent region, and a pair of third embossed regions and a pair of fourth embossed regions which are arranged around the middle region, each third embossed region comprises a plurality of third linear indentations formed by adjacently arranging a plurality of third indentations, each fourth embossed region comprises a plurality of fourth linear indentations formed by adjacently arranging a plurality of fourth indentations, the aspect ratio of the third indentations to the fourth indentations is 2-10.

Furthermore, at least three third linear indentations are arranged in parallel at intervals, at least three fourth linear indentations are arranged in parallel at intervals.

Furthermore, third indentations on adjacent third linear indentations are arranged in a staggered mode, and fourth indentations on adjacent fourth linear indentations are arranged in a staggered mode.

Further, the third linear indentation penetrates through the length direction of the body, and the fourth linear indentation is arranged between the pair of third embossing areas.

Furthermore, a pair of guide grooves is further arranged on the surface layer, the guide grooves and the third embossing areas are correspondingly arranged, and the projection of each guide groove on the absorbing layer is positioned in the corresponding third embossing area.

Furthermore, a second embossing area is further arranged between the pair of guide grooves, a plurality of second indentations are arranged in an array mode in the second embossing area, and the second indentations are arranged on the surface layer.

Furthermore, a pair of separated enclosure parts is arranged on the surface layer.

Furthermore, the surface layer comprises a side edge part, the protecting part comprises a first layer extending from the side edge part to the main absorption area and a second layer turned over from the first layer to the surface layer, and the first layer and the second layer are integrally formed.

Further, the containment portion may further include a fifth embossed area, the fifth embossed area including fifth linear indentations formed by the adjacent arrangement of the fifth linear indentations, and the first layer may be bonded to the second layer by the fifth embossed area.

Furthermore, the bottom layer comprises a first bottom layer and a second bottom layer, the first bottom layer is arranged in a stacked mode and is close to the absorption layer, the second bottom layer is far away from the absorption layer, and the protective enclosure portion extends towards the surface layer direction from the first bottom layer.

Has the beneficial effects that: the embodiment of the utility model provides an absorption article, which comprises a body, the body is including the surface course of range upon range of setting, absorbed layer and bottom, the body includes main absorption region, the absorbed layer includes the middle part district that corresponds with main absorption region and encloses a pair of third embossing area and a pair of fourth embossing area of establishing at middle part district periphery, each third embossing area includes many third line shape indentation that are formed by the adjacent range of a plurality of third indentation, and, each fourth embossing area includes many fourth line shape indentation that are formed by the adjacent range of a plurality of fourth indentation, the aspect ratio of third indentation and fourth indentation be 2-10, and, the length direction of third indentation is roughly parallel to the length direction of body, the length direction of fourth indentation roughly parallel to the width direction of body, through so setting, when the body fluid oozes or flows out on body and absorbed layer, third embossing area forms at left side and right side and blocks, fourth embossing area forms at upside and downside and blocks, simultaneously, when the body fluid reachs the third embossing area, thereby the extension direction that the body fluid will be followed the body flow is to the lateral area, thereby make the lateral area of the lateral extension of body fluid flow, the lateral area and the lateral area utilize the lateral area to expand the lateral area, utilize the lateral area, the lateral area of absorption area, the lateral area that the lateral diffusion of the lateral area is less.

Drawings

FIG. 1 is a front view of an absorbent article according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken at A-A in FIG. 1;

FIG. 3 is a schematic front view of the absorption layer when the flow-guiding grooves and the second indentations are not formed on the body;

FIG. 4 is a schematic front view of the absorption layer after forming the channels and the second indentations on the body;

FIG. 5 is an enlarged view of area A in FIG. 3;

FIG. 6 is an enlarged view of area B in FIG. 4;

a body 10; a main absorption region 101; a left region 102; a right region 103; an upper region 104; a lower region 105; a face layer 20; a diversion trench 21; a first indentation 211; a second embossed area 22; second indentations 221; an absorbent layer 30; a middle region 31; a third embossed area 32; third indentations 321; a fourth embossed area 33; fourth indentations 331; a first bottom layer 41; a second substrate 42; a skirt portion 51; a first layer 511; a second layer 512; a separation zone 513; a fifth embossed area 52; a fifth indentation 521.

Detailed Description

The embodiment of the utility model provides an absorb articles for use, will refer to the attached figure in the following and further explain the present application.

Meanwhile, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-4, an absorbent provided in the present application includes a main body 10, and the main body 10 includes a surface layer 20, an absorbent layer 30, and a bottom layer stacked together.

The main body 10 is generally in the form of a strip-shaped sheet, including a longitudinal direction and a width direction, the longitudinal direction is a vertical direction in fig. 1, the width direction is a horizontal direction, the main body 10 includes a main absorption region 101 and side regions surrounding the main absorption region 101, for convenience of description, the two side regions disposed along the width direction of the main absorption region 101 are referred to as a left side region 102 and a right side region 103, and the two side regions disposed along the length direction of the main absorption region 101 are referred to as an upper side region 104 and a lower side region 105, generally, the main absorption region 101 is disposed at a middle position of the main body, and more specifically, the main absorption region 101 is disposed at a region adjacent to a body fluid discharge region, which may be a vaginal orifice, an anus, a urethral orifice, and the like.

The surface layer 20 is disposed on a side close to the skin of the user, and the surface layer 20 should be at least partially liquid-permeable, which means that the body fluid can penetrate through the surface layer 20 and enter into the structural layer below the surface layer 20, such as the absorption layer 30, and normally, the body fluid can also diffuse along the surface layer 20 to further improve the absorption efficiency of the absorption body to the body fluid, and the at least partially liquid-permeable means that at least the area of the surface layer 20 corresponding to the body fluid discharge area is liquid-permeable.

Since the face layer 20 is in contact with the skin, it is preferable to select a sheet material having low irritation and softness, for example, a gauze, a cotton cloth, a spunlace nonwoven fabric, a hot air nonwoven fabric, or the like, having a weight per unit area of 10 to 60g/m2, and more preferably, a hot air nonwoven fabric composed of thermoplastic synthetic fibers, and as the synthetic fibers constituting the hot air nonwoven fabric, polyolefin fibers such as Polyethylene (PE) fibers and polypropylene (PP) fibers, polyester fibers, polyamide fibers such as nylon, or 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, or the like.

The absorbent layer 30 is stacked below the surface layer 20, specifically, the absorbent layer 30 is a three-dimensional network structure formed by a plurality of fibers entangled and properly connected, a plurality of pores are distributed between the three-dimensional network structure, and the pores can absorb and diffuse body fluid, in a preferred embodiment, a polymeric absorbent material (SAP) is included between the three-dimensional network structure to further absorb and retain body fluid through the polymeric absorbent material, and it is understood that the fibers can be fluff pulp.

Further, the absorption layer 30 may further include a covering layer, the covering layer covers or wraps the three-dimensional network structure, and the covering layer is made of a liquid-permeable material, in some embodiments, the covering layer may be a non-woven fabric or a toilet paper, and the covering layer is also preferably made of a soft material, such as a sheet material with a weight per unit area of 10 to 60g/m2, such as gauze, cotton cloth, spunlace non-woven fabric, hot air non-woven fabric, or toilet paper, and more preferably, the covering layer has a lower basis weight relative to the surface layer 20.

Referring to fig. 2, fig. 3 and fig. 5, in which fig. 3 shows a front view of the absorption layer 30 when the channels 21 and the second indentations 221 are not formed on the body 10, and fig. 5 shows an enlarged view of the area a in fig. 3. The absorbent layer 30 includes a central region 31 corresponding to the main absorbent region 101, and a pair of third embossed regions 32 and a pair of fourth embossed regions 33 surrounding the central region 31, wherein the pair of third embossed regions 32 are disposed at intervals along the central region 31, and the pair of fourth embossed regions 33 are disposed at intervals along the central region 31.

Each third embossed area 32 includes a plurality of third linear indentations formed by adjacently arranging a plurality of third indentations 321, and each fourth embossed area 33 includes a plurality of fourth linear indentations formed by adjacently arranging a plurality of fourth indentations 331, the adjacent arrangement means that the third indentations 321 or the fourth indentations 331 are arranged continuously or discontinuously, wherein the discontinuous means that the adjacent indentations are not adjacent, the third indentations 321 and the fourth indentations 331 are both in the shape of grooves recessed from the surface layer 20 to the bottom layer, so that the absorbent layer 30 is compacted in the area corresponding to the third indentations 321 and the fourth indentations 331, as is well known, the main reason that porous objects such as paper and textiles can absorb liquid is the capillary phenomenon, which is the phenomenon that liquid in a thin tubular object rises along the thin tube due to the difference between the surface tension and the adhesive force of the liquid, and the capillary phenomenon follows the following formula:

h=

in the above formula, h represents the rising height of the liquid, γ represents surface tension, θ represents contact angle, ρ represents liquid density, g represents gravitational acceleration, and r represents tubule radius, in the same environment, the surface tension γ, the contact angle θ, the liquid density ρ, and the gravitational acceleration g in the above formula can all be regarded as constants, that is, the rising height of the liquid depends on the radius of the tubule, the smaller the tubule radius is, the higher the liquid rises, and when the principle of the capillary phenomenon is applied to an absorbent article, the tubule radius r is the pore size of the absorbent article, that is, the liquid in the region corresponding to the third indentation 321 and the fourth indentation 331 has a higher diffusion speed and better absorbability.

In this embodiment, the third indentations 321 and the fourth indentations 331 are rice-grain-shaped indentations, where the length-width ratio of the indentations is 2-10: first, since the third embossed regions 32 are provided on the left and right sides of the main absorbent region 101 and the third linear indentations are provided in a linear shape, when the body fluid is exuded or discharged to the main body 10 and the absorbent layer 30, the third embossed regions 32 form barriers on the left and right sides, and similarly, the fourth embossed regions 33 form barriers on the upper and lower sides, and second, since the third indentations 321 are in a rice grain shape and have a length direction parallel to the length direction of the main body 10, when the body fluid reaches the third embossed regions 32, the body fluid flows in the extending direction of the third linear indentations, so that the body fluid is diffused in the direction of the upper and lower regions 104 and 105, thereby preventing the leakage of the body fluid and expanding the absorbent region, and the absorbent capacities of the upper and lower regions 104 and 105 which are less utilized can be utilized.

Furthermore, at least three third linear indentations are arranged in parallel at intervals, and at least three fourth linear indentations are also arranged in parallel at intervals.

Further, the third indentations 321 on adjacent third linear indentations are staggered, where the staggered arrangement means that when the third linear indentations are non-continuously arranged third indentations 321, a spacing segment is arranged between adjacent third indentations 321 on each third linear indentation, and the third indentations 321 on adjacent third linear indentations and the spacing segments of adjacent third linear indentations are correspondingly arranged to form a staggered arrangement, and similarly, the fourth indentations 331 on adjacent fourth linear indentations are staggered.

Further, the third linear indentation penetrates through the length direction of the body 10, and the fourth linear indentation is arranged between the pair of third embossed areas 32.

Referring to fig. 4 and 6, the surface layer 20 is further provided with a pair of guiding grooves 21, the pair of guiding grooves 21 are respectively disposed in the left region 102 and the right region 103, the guiding grooves 21 extend along the length direction of the body 10, so that when body fluid flows onto the surface layer 20, the body fluid can be rapidly diffused along the guiding grooves 21, the guiding grooves 21 are linear and are formed by adjacently arranging a plurality of first indentations 211, and the first indentations 211 are in the shape of grooves recessed from the surface layer 20 to the bottom layer.

Furthermore, a part of the diversion trench 21 adjacent to the main absorption region 101 is arc-shaped, and the middle part of the diversion trench 21 is recessed towards the main absorption region 101, so that the middle part of the diversion trench 21 is adjacent to the body fluid discharge region, and the body fluid diffusion rate is increased.

Further, the projection of the channels 21 on the absorbent layer 30 is located in the third embossed area 32, in which case the body fluid can seep down and diffuse along the channels 21 and the third linear indentation, and fig. 4 shows the concave shape of the first indentations 211 forming the channels 21 in the third embossed area 32 when the channels 21 are provided.

Further, a second embossed region 22 is further included between a pair of the channels 21, the second embossed region 22 is formed by arranging a plurality of second indentations 221 in an array manner, the second indentations 221 are disposed on the surface layer 20 and are recessed from the surface layer 20 toward the bottom layer, and it can be understood that the second embossed region 22 is disposed corresponding to the body fluid discharge region to increase the body fluid infiltration rate.

It will be understood that said first 211, second 221, third 321 and fourth 331 impressions can be obtained by an embossing process of an embossing system, which, in general, comprises a pair of rollers with parallel axes juxtaposed: the embossing roll and the bottom roll, the embossing roll having protrusions extending radially outward, the embossing roll and the bottom roll having a slit therebetween, the body 10 or the absorbent layer 30 passing through the slit between the two rolls, such that the protrusions form a first indentation 211, a second indentation 221, a third indentation 321, and a fourth indentation 331 on the body 10 or the absorbent layer 30, it can be understood that the protrusions match the shape and size of the first indentation 211, the second indentation 221, the third indentation 321, and the fourth indentation 331, and a plurality of protrusions form corresponding shapes on the body 10 or the absorbent layer 30 after the body 10 or the absorbent layer 30 passes through the slit between the two rolls when the protrusions are arranged on the surface of the embossing roll in a form corresponding to the channels 21, the second embossed region 22, the third embossed region 32, and the third embossed region 32, it can be understood that since the body 10 has a plurality of layers, the plurality of layers can be connected together by entanglement of fibers while forming the channels 21 and/or the second embossed region 22.

In the present embodiment, the facing layer 20 is further provided with a pair of separated enclosure portions 51, more specifically, the pair of enclosure portions 51 are arranged along the width direction of the body 10 and respectively arranged on the left side region 102 and the right side region 103, the facing layer 20 includes side edge portions, the enclosure portion 51 includes a first layer 511 extending from the side edge portions to the main absorption region 101 and a second layer 512 folded from the first layer 511 to the facing layer 20, that is, the enclosure portion 51 is U-shaped, and in the enclosure portion 51, the first layer 511 is presented to the upper side of the skin side of the user, and the second layer 512 is located below the first layer 511, the enclosure portion 51 includes a first end facing the main absorption region 101 and a second end facing the side edge portions, it can be understood that at the first end, the first layer 511 and the second layer 512 are in a connected state, at the second end, the first layer 511 and the second layer 512 are in a separated state, and at the second end, while the second layer 512 and the first layer 512 are integrally formed, and the second layer 512 is presented to the skin side of the first layer 511, so that the folded surface of the second layer 512 is formed toward the skin side of the facing the second layer 20, and the surface of the second layer 511 is formed after the folded.

The enclosure 51 further includes a fifth embossed area 52, in this embodiment, the fifth embossed area 52 includes a fifth linear indentation formed by adjacently arranging fifth indentations 521, and the first layer 511 and the second layer 512 are combined by the fifth embossed area 52, meanwhile, a combination area is included between the second layer 512 and the surface layer 20, and the second layer 512 and the surface layer 20 are combined in the combination area.

The bonding is formed by bonding, fusing or adhering materials, wherein the bonding is formed by applying pressure to a part of the materials to entangle fibers between the materials, for example, fibers of adjacent material layers are extruded and entangled in a form of needling or embossing, in addition, the materials can be simultaneously heated to bond hydrogen bonds of plant fibers to form a better bonding effect during the bonding, the fusing can be locally melted after the materials are heated to reach the melting point temperature and then solidified to form the connection, or external energy such as ultrasonic waves is applied to the materials to locally melt the materials at high temperature and form the connection after the solidification, and the adhesion can be formed by connecting the adjacent materials under the action of the adhesive.

The surface layer 20 and the second layer 512 further include a separating region 513 on the side facing the main absorption region 101, when in use, the corresponding enclosure 51 of the separating region 513 will be erected, thereby forming a barrier to prevent body fluid from leaking out of the main body 10 and contaminating the clothes.

The enclosure 51 is divided into a first area facing the first end and a second area facing the second end by the fifth embossed area 52, it can be understood that a cavity area is formed between the first layer 511 and the second layer 512 corresponding to the first area by the fifth embossed area 52, and meanwhile, it can be understood that the first end of the enclosure 51 faces the skin side when standing up and butts against the skin, and the first end has a certain resilience and a good comfort level due to the existence of the cavity area, or the first end does not have an elastic material such as an elastic band which is additionally arranged due to the existence of the cavity area and the absence of the first end, so that the first end does not wear against the skin when butts against the skin.

Further, the fifth embossed region 52 penetrates the longitudinal direction of the body 10.

The bottom layer is stacked under the absorption layer 30, in order to prevent the body fluid from contaminating the user's clothes through the surface layer 20, the bottom layer is usually made of a water-repellent material, specifically, a PE film, SMS nonwoven fabric, nonwoven fabric with a surface subjected to water-repellent treatment, etc., and preferably, the bottom layer can allow gas, such as water vapor, to pass through but does not allow body fluid to pass through, so that the garment is not hot and stuffy when in use.

Further, in this embodiment, the bottom layer includes a first bottom layer 41 adjacent to the absorbent layer 30 and a second bottom layer 42 away from the absorbent layer 30, which are stacked, the enclosure 51 is an extension of the first bottom layer 41 toward the surface layer 20, that is, the enclosure 51 is a part of the first bottom layer 41, specifically, the end portions of the left and right sides of the first bottom layer 41 are folded toward the surface layer 20 to form a first layer 511, and the first layer 511 is folded toward the surface layer 20 to form a second layer 512, so that the first layer 511 and the first bottom layer 41 form a U-shaped structure, and the first layer 511 and the second layer 512 form a U-shaped structure, and in addition, in this folding manner, the opening at the second end of the enclosure 51 is sealed by the connecting area between the first layer 511 and the first bottom layer 41.

The first substrate 41 and the second substrate 42 include a bonding region therebetween, and the bonding region extends from the central portion to the side edge portion.

Further, a flow guiding layer (ADL) may be disposed between the surface layer 20 and the absorbent layer 30.

Further, the surface layer 20, the first bottom layer 41, and the second bottom layer 42 are combined to form a peripheral seal along the end of the body 10 in the longitudinal direction, and the surface layer 20, the first bottom layer 41, and the second bottom layer 42 form a closed space through the peripheral seal, and the absorption layer 30 is accommodated in the closed space.

Further, an adhesive is disposed on the backsheet to secure the absorbent article to the undergarment via the adhesive.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. An absorbent article comprises a body, and is characterized in that the body comprises a surface layer, an absorbent layer and a bottom layer which are arranged in a stacked manner, the body comprises a main absorbent region, the absorbent layer comprises a middle region corresponding to the main absorbent region, and a pair of third embossed regions and a pair of fourth embossed regions which are arranged around the middle region, each third embossed region comprises a plurality of third linear indentations formed by adjacently arranging a plurality of third indentations, each fourth embossed region comprises a plurality of fourth linear indentations formed by adjacently arranging a plurality of fourth indentations, the length-width ratio of the third indentations to the fourth indentations is 2-10.

2. The absorbent article of claim 1 wherein at least three of said third linear indentations are spaced apart in parallel, at least three of said fourth linear indentations are spaced apart in parallel, and each of said fourth linear indentations are spaced apart in parallel.

3. The absorbent article of claim 2 wherein the third indentations are staggered from adjacent third linear indentations and the fourth indentations are staggered from adjacent fourth linear indentations.

4. The absorbent article of claim 2 wherein said third linear indentations extend through the length of said body, said fourth linear indentations being disposed between a pair of said third embossed regions.

5. The absorbent article of claim 2 wherein said topsheet is further provided with a pair of channels, said pair of channels being disposed in correspondence with a pair of said third embossed regions, and each channel having a projection onto said absorbent layer in a corresponding third embossed region.

6. The absorbent article of claim 5 further comprising a second embossed area between a pair of said channels, said second embossed area being defined by a plurality of second indentations arranged in an array, said second indentations being disposed in said topsheet.

7. The absorbent article of claim 1 wherein said facing layer further comprises a pair of spaced apart containment flaps.

8. The absorbent article of claim 7 wherein said facing layer includes side edges and said containment portion includes a first layer extending from said side edges toward said main absorbent region and a second layer folded from said first layer toward said facing layer, said first layer and said second layer being integrally formed.

9. The absorbent article of claim 8 wherein the containment portion further comprises a fifth embossed area, the fifth embossed area comprising fifth linear indentations formed by the adjacent arrangement of the fifth indentations, and wherein the first layer is bonded to the second layer by the fifth embossed area.

10. The absorbent article of claim 9 wherein said backsheet comprises a first backsheet adjacent said absorbent layer and a second backsheet facing away from said absorbent layer in a stacked arrangement, said containment portion extending from said first backsheet in a direction toward said facing layer.

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