CN109938925B - High-air-permeability disposable absorbent product - Google Patents
High-air-permeability disposable absorbent product Download PDFInfo
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- CN109938925B CN109938925B CN201910153905.5A CN201910153905A CN109938925B CN 109938925 B CN109938925 B CN 109938925B CN 201910153905 A CN201910153905 A CN 201910153905A CN 109938925 B CN109938925 B CN 109938925B
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- 230000002745 absorbent Effects 0.000 title claims abstract description 48
- 239000002250 absorbent Substances 0.000 title claims abstract description 48
- 239000010410 layer Substances 0.000 claims abstract description 152
- 239000000835 fiber Substances 0.000 claims abstract description 78
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000002706 hydrostatic effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000004745 nonwoven fabric Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Absorbent Articles And Supports Therefor (AREA)
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Abstract
The invention relates to a high-permeability disposable absorbent product, which comprises a liquid-permeable top layer, a liquid-impermeable side-leakage-preventing layer, a liquid-impermeable bottom layer and an absorbent core arranged between the liquid-permeable top layer and the liquid-impermeable bottom layer, wherein the liquid-impermeable bottom layer adopts a high-permeability liquid-impermeable sheet, the high-permeability liquid-impermeable sheet comprises at least one superfine fiber breathable waterproof net layer, through holes which are used for communicating the surface layer and the bottom layer of the superfine fiber breathable waterproof net layer are arranged between the fibers in the superfine fiber breathable waterproof net layer and the adjacent fibers, the size of the through holes is 0.5-10 mu m, a humidity color-changing coating is arranged on one side surface of the superfine fiber breathable waterproof net layer, which is close to the absorbent core, and the humidity color-changing coating is arranged at intervals along the central position of the superfine fiber breathable waterproof net layer in the transverse width and extends towards the two longitudinal ends of the superfine fiber breathable waterproof net layer in the longitudinal length. The invention has excellent moisture-proof and air-permeable effects.
Description
Technical Field
The invention relates to the technical field of disposable sanitary products, in particular to a high-air-permeability disposable absorbent product.
Background
Infants and other individuals who do not have a self-care function often need to wear disposable absorbent articles such as diapers, panty liners, sanitary napkins, pull-ups, and the like in order to store and isolate the exudates from the body, clothing, bedding, and the like of the wearer.
However, the current urine leakage preventing structure of paper diapers mainly comprises leakage preventing isolation edges (mainly made of spun-melt non-woven fabrics) standing on two sides and a breathable PE film on the lower layer of an absorber. Wherein, the breathable PE film prevents excrement from exuding from the bottom layer of the paper diaper, and the micropores on the surface can penetrate through water vapor to achieve a certain breathable effect. However, ventilation of breathable PE films has the following drawbacks: the micropores on the surface can only penetrate through water vapor in a gasification state, and water mist in a small droplet state can still be blocked; meanwhile, due to the limitation of the production process, the average value of the moisture permeability (the water vapor penetration at the temperature of 40 ℃ and the humidity of 60%) of the breathable PE film is 3200 g/square meter/24 h, and the upper limit value is 5500 g/square meter/24 h, so that the breathable effect of the breathable PE film in an actual use scene is not obvious. The improved breathability of the absorbent article greatly reduces the feeling of stuffy and directly improves the comfort of the user, and therefore many companies are working to design more breathable absorbent articles.
The invention aims to replace the breathable PE film of the current main stream by using a superfine fiber net layer (flake) with better moisture-proof and breathable effects as a main moisture-proof material of a paper diaper. The net sheet achieves the filtering effect of air filtering or liquid filtering medium level, solves the current situation that only gasified water can penetrate through the PE film at present, enables gasified water, atomized water and hot air to efficiently penetrate through the liquid impermeable bottom layer of the disposable absorbent product, enables large liquid drops and liquid with high aggregation degree to be unable to penetrate through the bottom layer under the conventional atmospheric pressure, and can obviously exchange air with the outside through the internal environment in actual use, thereby remarkably removing hot air and moisture inside the disposable absorbent product and improving the use experience of the disposable absorbent product.
Disclosure of Invention
The invention aims to provide a disposable absorbent product with excellent moisture-proof and air-permeable effects, so that gasified water, atomized water and hot air can efficiently penetrate through a liquid-impermeable bottom layer of the disposable absorbent product, and the technical problem of insufficient air permeability of an air-permeable PE film is solved, and the invention adopts the following technical scheme to achieve the aim:
The high-breathability disposable absorbent product comprises a liquid-pervious top layer, a liquid-impervious side leakage-preventing layer, a liquid-impervious bottom layer and an absorbent core arranged between the liquid-pervious top layer and the liquid-impervious bottom layer, wherein the liquid-impervious bottom layer is made of a high-breathability liquid-impervious sheet, the high-breathability liquid-impervious sheet comprises at least one superfine fiber breathable waterproof net layer, through holes which are used for communicating the surface layer and the bottom layer of the superfine fiber breathable waterproof net layer are formed between fibers in the superfine fiber breathable waterproof net layer 1 and adjacent fibers, and the size of the through holes is 0.5-10 mu m.
Preferably, a humidity color-changing coating is arranged on one side surface of the superfine fiber breathable waterproof net layer, which is close to the absorbent core, the humidity color-changing coating is arranged at intervals along the central position of the superfine fiber breathable waterproof net layer in the transverse width direction, and extends towards the two longitudinal ends of the superfine fiber breathable waterproof net layer in the longitudinal length direction.
Preferably, the superfine fiber breathable waterproof net layer is formed by stacking ultra-long superfine fibers and reinforcing the ultra-long superfine fibers to form a lamellar compact net layer with uniform thickness, and the square gram weight of the lamellar compact net layer is 6-18g.
Preferably, the high air-permeability and liquid-impermeability sheet is of a two-layer structure and is formed by fixedly connecting superfine fiber air-permeability and water-proof net layers respectively positioned on an upper layer and a lower layer through binding points.
Preferably, the high air-permeability and liquid-impermeability sheet has a three-layer structure and is formed by fixedly connecting superfine fiber air-permeability and water-proof net layers respectively positioned on an upper layer, a middle layer and a lower layer through binding points.
Preferably, the binding point is one of a thermal welding point, an ultrasonic welding point and an infrared welding point, the size of the binding point is 0.05-5mm, and the outline shape of the binding point is round, star-shaped, heart-shaped, elliptic, square or rectangular.
Preferably, the superfine fiber breathable waterproof net layer positioned at the lower layer is provided with conical air holes penetrating through the surface and the bottom surface of the superfine fiber breathable waterproof net layer, and the conical bottom hole of the conical air holes is far away from the superfine fiber breathable waterproof net layer positioned at the upper layer.
Preferably, the air-permeable and waterproof layer is also provided with conical air holes penetrating through the surface of the superfine fiber air-permeable and waterproof layer of the middle layer and the bottom surface of the superfine fiber air-permeable and waterproof layer of the lower layer, and the conical bottom holes of the conical air holes are far away from the superfine fiber air-permeable and waterproof layer of the upper layer.
Preferably, the high air-impermeable liquid-permeable sheet has a hydrostatic pressure resistance value of 50 to 1000mmH 2 O.
Preferably, the air permeability of the high air-impermeable liquid-permeable sheet is 5500-8000g/cm 2.24 hours.
As a preferable technical scheme, an ultra-soft skin-friendly fiber layer is compounded on one side surface of the high-air-permeability liquid-impermeable sheet far away from the absorbent core, wherein the ultra-soft skin-friendly fiber layer is selected from spunbonded non-woven fabric, hot-rolled non-woven fabric, hot air non-woven fabric, spunlaced non-woven fabric or needled non-woven fabric, and the square gram weight is 9-12g.
The beneficial effects of the invention are as follows:
Firstly, the high-permeability disposable absorbent product has excellent anti-seepage and high-permeability technical effects, keeps the high permeability of the material, has good isolation, shielding and seepage-proofing properties on liquid, has the water pressure of 50-1000mmH 2 O, has the water vapor permeability of 5500-8000g/cm 2.24 hours, can durably block the liquid from being externally permeated after being wet by urine, and simultaneously allows water vapor, hot air and water mist with small aggregation degree which are higher than the permeability of the PE breathable film to penetrate, and keeps dry permeability. The humidity color-changing coating arranged on the high-air-permeability liquid-impermeable sheet material further improves the convenience and comfort of use, and can clearly know the use condition of a disposable absorbent product of a user from the outside when in use, thereby greatly reducing the discomfort caused by the fact that the user cannot replace the disposable absorbent product in time after using the disposable absorbent product.
Secondly, the conical ventilation holes can improve the ventilation property of the high ventilation impermeable sheet material consisting of two or more superfine fiber ventilation waterproof net layers, so that on one hand, the strength of the high ventilation impermeable sheet material is improved, on the other hand, the leakage phenomenon of liquid can be effectively prevented, and the use safety is improved.
Finally, the invention solves the defects of low heat and humidity comfort and easy liquid leakage when the existing disposable absorbent product is worn, effectively reduces the stuffy feeling of the disposable absorbent product, improves the wearing comfort, and avoids the red buttocks phenomenon frequently occurring in the process of wearing the disposable absorbent product by infants.
Drawings
Fig. 1 is a schematic structural view of a highly breathable disposable absorbent article of example 1.
Fig. 2 is a schematic structural view of embodiment 1 taken along A-A with respect to fig. 1.
Fig. 3 is a schematic air-permeable view of the high air-impermeable liquid-permeable sheet material of example 1.
Fig. 4 is a schematic view of a bar-shaped humidity color-changing coating layer distributed in a straight line in example 1.
Fig. 5 is a schematic view of a bar-shaped humidity color-changing coating distributed in a dotted line manner of example 1.
Fig. 6 is a schematic view of a high air-impermeable liquid-impermeable sheet material of a double-layer structure of example 2.
Fig. 7 is a schematic representation of the ultra-soft skin-friendly fiber layer of example 3.
Fig. 8 is a schematic view of a high air-impermeable liquid-impermeable sheet material of a double-layer structure of example 4.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2, 3 and 4, the highly breathable disposable absorbent article of the present embodiment includes a liquid-permeable top layer 104, a liquid-impermeable side-leakage-preventing layer 103, a liquid-impermeable bottom layer 101, and an absorbent core 102 disposed between the liquid-permeable top layer and the liquid-impermeable bottom layer, and is structurally characterized in that: the liquid-impermeable backsheet 101 is a high-air-permeability liquid-impermeable sheet 100 composed of at least one layer of the ultrafine fibrous air-permeable, water-impermeable web layer 1.
The high air-permeability and liquid-impermeable sheet 100 of the present embodiment is composed of a single-layer superfine fiber air-permeability and liquid-impermeable net layer 1, and through holes (not shown in the figure) for communicating the surface layer and the bottom layer of the superfine fiber air-permeability and liquid-impermeable net layer are arranged between the fibers in the superfine fiber air-permeability and liquid-impermeable net layer 1 and the adjacent fibers, and the size of the through holes is 0.5-10 μm.
In a specific embodiment, the superfine fiber breathable waterproof net layer 1 of the embodiment adopts the existing spun-bonded non-manufacturing cloth or spun-bonded melt-blown non-manufacturing cloth, for example, ultra-long superfine fibers are stacked and mechanically or wind-pressed to form a lamellar compact net layer with uniform thickness, and then the superfine fiber breathable waterproof net layer 1 with the square gram weight of 6-18g is formed through heat bonding or self bonding reinforcement.
As shown in fig. 3, the high air-permeable and liquid-impermeable sheet 100 formed by the single-layer superfine fiber air-permeable and water-impermeable net layer 1 has the technical effects of seepage prevention and high air permeability, the water vapor 106 passes through the through holes of the high air-permeable and liquid-impermeable sheet 100 to be emitted into the external environment 108, the exchange of internal and external air is realized, the problem of wet tightness is solved, and liquid or excrement is isolated and shielded to the using inner side 107 of the high air-permeable and liquid-impermeable sheet 100, so that the high air permeability of the material is maintained, meanwhile, the high air-permeable and liquid-impermeable sheet has good isolation, shielding and seepage prevention performances for liquid, the hydrostatic pressure resistance value reaches 560mmH 2 O, the water vapor permeability reaches 7980g/cm 2.24 h, and the high air-permeable sheet adopting the single-layer structure has higher air permeability.
In order to improve the use convenience of the high-air-permeability disposable absorbent product, the embodiment continuously provides an improved technical scheme, and on the basis of the above embodiment, a humidity color-changing coating is arranged at the longitudinal center of the surface layer of the superfine fiber air-permeability waterproof net layer, and the humidity color-changing coating of the embodiment adopts the prior art, such as the humidity color-changing indication recorded in the prior art with the bulletin number of CN 101797198B.
As shown in fig. 4, in this embodiment, a humidity color-changing coating 2 is disposed on one side surface of the superfine fiber breathable waterproof net layer, which is close to the absorbent core, and the humidity color-changing coating is disposed at intervals along the central position of the superfine fiber breathable waterproof net layer in the transverse width, and extends toward the two longitudinal ends of the superfine fiber breathable waterproof net layer in the longitudinal length. The thermochromic coating 2 may also extend to both ends in the form of a dotted line, as shown in fig. 5. The humidity color-changing coating 2 enables the usage condition of the disposable absorbent article with high air permeability to be known from the outside at a glance when the disposable absorbent article is used, and greatly reduces the discomfort caused by the fact that the disposable absorbent article cannot be replaced in time after being used by a user.
Example 2
As shown in fig. 3 and 6, the structural feature of this embodiment is that: the high air permeability disposable absorbent article adopts a high air permeability liquid impermeable sheet 100 formed by two layers of superfine fiber air permeability water-proof net layers as a liquid impermeable bottom layer 101, the high air permeability liquid impermeable sheet 100 is formed by fixedly connecting a superfine fiber air permeability water-proof net layer 1 positioned on the upper layer and a superfine fiber air permeability water-proof net layer 2 positioned on the lower layer respectively through binding points 6, wherein the binding points 6 are preferably ultrasonic welding points, one of thermal welding points and infrared welding points can also be adopted, the size is 0.05-5mm, in addition, the outline shape of the binding points 6 is preferably circular, and star-shaped, heart-shaped, elliptic, square or rectangular can also be selected.
In order to further improve the air permeability of the high air-permeable and liquid-impermeable sheet 100 with a two-layer structure, as shown in fig. 4, the present embodiment is provided with a conical air-permeable hole 10 penetrating the surface and bottom surface of the superfine fiber air-permeable and liquid-impermeable mesh layer 2 located on the lower layer, and the conical bottom hole 11 of the conical air-permeable hole 10 is far away from the superfine fiber air-permeable and liquid-impermeable mesh layer 1 located on the upper layer. As a preferred embodiment, the cone top opening aperture size of the cone-shaped ventilation hole 10 is 0.1mm-0.5mm, preferably 0.1mm or 0.2mm.
The hydrostatic pressure resistance value of the high air-permeability liquid-impermeable sheet 100 of this embodiment is 712 millimeters water column, and the air permeability is 7650g/cm 2.24 h, and it can be seen that the tapered air vent can effectively avoid or compensate the problem of reduced air permeability caused by the adoption of the double-layer superfine fiber air-permeability waterproof net layer for the high air-permeability liquid-impermeable sheet, so that the high air-permeability disposable absorbent product of this embodiment still has excellent air permeability, on one hand, the strength of the high air-permeability liquid-impermeable sheet is improved, on the other hand, the leakage phenomenon of liquid can be effectively prevented, and the safety in use is improved.
Example 3
As shown in fig. 3 and 7, in the present embodiment 1, a highly breathable and liquid-impermeable sheet 100 comprising three layers of ultrafine fibrous breathable and liquid-impermeable mesh layers is used as a liquid-impermeable bottom layer 101, and the highly breathable and liquid-impermeable sheet 100 is formed by fixedly connecting an ultrafine fibrous breathable and liquid-impermeable mesh 1 located in the upper layer, an ultrafine fibrous breathable and liquid-impermeable mesh 3 located in the middle layer, and an ultrafine fibrous breathable and liquid-impermeable mesh layer 2 located in the lower layer, respectively, through tie points 7. The binding point 7 is preferably an ultrasonic welding point, one of a thermal welding point and an infrared welding point can be adopted, the size is 0.05-5mm, the outline shape of the binding point 7 is preferably a circle, and a star shape, a heart shape, an ellipse shape, a square shape or a rectangle shape can be selected.
In order to further improve the air permeability of the three-layer structure of the high air impermeable sheet 100, as shown in fig. 7, in this embodiment, a tapered air vent 20 is provided on the high air impermeable sheet 100, which penetrates from the surface of the middle layer of the superfine fiber air permeable and waterproof layer 3 down to the bottom surface of the lower layer of the superfine fiber air permeable and waterproof layer 2, and the aperture 21 of the tapered air vent 20 is far away from the upper layer of the superfine fiber air permeable and waterproof layer 1, and the aperture size of the cone top opening of the tapered air vent 20 is 0.1mm-0.5mm, preferably 0.1mm or 0.2mm.
The beneficial technical effects of this embodiment lie in that the hydrostatic resistance value of the high air-permeability liquid-impermeable sheet adopting the three-layer superfine fiber air-permeability water-proof net layer is 783 millimeters of water column, and the air permeability is 7024g/cm 2.24 h, it can be seen that, similar to embodiment 2, the air permeability of the high air-permeability liquid-impermeable sheet adopting the three-layer structure is also reduced, but the amplitude is not great, and the conical air holes can effectively avoid or compensate the problem of reduced air permeability caused by the adoption of the three-layer superfine fiber air-permeability water-proof net layer structure of the high air-permeability liquid-impermeable sheet, and the air permeability and the safe use performance of the high air-permeability liquid-impermeable sheet adopting the three-layer structure are both considered, so that the high air-permeability liquid-impermeable sheet adopting the three-layer structure still has excellent air permeability, on one hand, the strength of the high air-permeability liquid-impermeable sheet is improved, on the other hand, the leakage phenomenon of liquid is effectively prevented, and the use safety is improved.
Example 4
As shown in fig. 8, in order to further improve the touch feeling and wearing comfort of the high air-impermeable sheet, in this embodiment, on the basis of embodiment 1, embodiment 2 or embodiment 3, an ultra-soft skin-friendly fiber layer 4 is disposed on the outer side of the high air-impermeable sheet, and is integrally connected with the high air-impermeable sheet through a hot melt adhesive layer, and the square gram weight of the ultra-soft skin-friendly fiber layer 4 is 9-12g, which is selected from a spunbond nonwoven fabric, a hot-rolled nonwoven fabric, a hot-air nonwoven fabric, a spunlaced nonwoven fabric or a needled nonwoven fabric.
The super-soft skin-friendly fiber layer of the embodiment endows the high-breathability disposable absorbent product with higher hand feeling and higher appearance effect, overcomes the defects of lower heat and moisture comfort and easy liquid leakage when the conventional disposable absorbent product is worn, and effectively avoids the red buttocks phenomenon frequently occurring in the process of wearing the disposable absorbent product by infants.
Although the present invention has been described in terms of specific embodiments, the scope of the invention is not limited to the specific embodiments described above, but is capable of numerous modifications, variations and substitutions without departing from the spirit of the invention.
Claims (8)
1. A highly breathable disposable absorbent article comprising a liquid pervious topsheet, a liquid impervious side leakage prevention layer, a liquid impervious backsheet, and an absorbent core disposed between the liquid pervious topsheet and the liquid impervious backsheet, characterized in that: the impermeable bottom layer adopts a high-air-permeability impermeable sheet, the high-air-permeability impermeable sheet comprises at least one superfine fiber air-permeability waterproof net layer, through holes for communicating the surface layer and the bottom layer of the superfine fiber air-permeability waterproof net layer are formed between the fibers in the superfine fiber air-permeability waterproof net layer and the adjacent fibers, and the size of the through holes is 0.5-10 mu m;
the high air permeability and liquid impermeability sheet has a hydrostatic pressure resistance value of 560-1000mmH 2 O and an air permeability of 5500-8000 g/cm 2.24 h.
2. The highly breathable disposable absorbent article of claim 1 wherein: the moisture color-changing coating is arranged on one side surface of the superfine fiber breathable waterproof net layer, which is close to the absorbent core, and the moisture color-changing coating is arranged at intervals along the central position of the superfine fiber breathable waterproof net layer in the transverse width and extends towards the two longitudinal ends of the superfine fiber breathable waterproof net layer in the longitudinal length.
3. The highly breathable disposable absorbent article of claim 1 wherein: the superfine fiber breathable waterproof net layer is formed by stacking ultra-long superfine fibers and reinforcing the ultra-long superfine fibers, so that a lamellar compact net layer with uniform thickness is formed, and the square gram weight of the lamellar compact net layer is 6-18g.
4. The highly breathable disposable absorbent article of claim 1 wherein: the high-permeability impermeable sheet is of a two-layer structure and is formed by fixedly connecting superfine fiber breathable waterproof net layers respectively positioned on an upper layer and a lower layer through binding points.
5. The highly breathable disposable absorbent article of claim 1 wherein: the high-permeability and liquid-impermeable sheet is of a three-layer structure and is formed by fixedly connecting superfine fiber breathable waterproof net layers respectively positioned on an upper layer, a middle layer and a lower layer through binding points.
6. The highly breathable disposable absorbent article of claim 4 or 5 wherein: the binding points are one of thermal welding points, ultrasonic welding points and infrared welding points, the size of the binding points is 0.05-5mm, and the outline shape of the binding points is round, star-shaped, heart-shaped, elliptic, square or rectangular.
7. The highly breathable disposable absorbent article of claim 4 wherein: the superfine fiber breathable waterproof net layer positioned on the lower layer is provided with conical ventilation holes penetrating through the surface and the bottom surface of the superfine fiber breathable waterproof net layer, and the conical bottom holes of the conical ventilation holes are far away from the superfine fiber breathable waterproof net layer on the upper layer.
8. The highly breathable disposable absorbent article of claim 5 wherein: the air-permeable and waterproof curtain is characterized by further comprising conical air holes penetrating through the surface of the superfine fiber air-permeable and waterproof curtain layer of the middle layer and the bottom surface of the superfine fiber air-permeable and waterproof curtain layer of the lower layer, wherein the conical bottom holes of the conical air holes are far away from the superfine fiber air-permeable and waterproof curtain layer of the upper layer.
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| CN201910153905.5A CN109938925B (en) | 2019-03-01 | 2019-03-01 | High-air-permeability disposable absorbent product |
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| CN201910153905.5A CN109938925B (en) | 2019-03-01 | 2019-03-01 | High-air-permeability disposable absorbent product |
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