CN211433699U - Degradable sanitary towel - Google Patents
Degradable sanitary towel Download PDFInfo
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- CN211433699U CN211433699U CN201921096869.5U CN201921096869U CN211433699U CN 211433699 U CN211433699 U CN 211433699U CN 201921096869 U CN201921096869 U CN 201921096869U CN 211433699 U CN211433699 U CN 211433699U
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Abstract
The utility model relates to a sanitary towel technical field, concretely relates to degradable sanitary towel. This sanitary towel includes imbibition piece, leak protection, two flanks that waterproof basement membrane and symmetry set up, imbibition piece is including the water-soluble non-woven fabrics layer that from top to bottom sets gradually, water-soluble cotton layer, absorb sandwich layer and anti-permeation layer, leak protection piece is by the outside extension of the edge all around of anti-permeation layer, and the water-soluble non-woven fabrics layer of cladding, water-soluble cotton layer, absorb the edge of sandwich layer and fold to the upper surface edge on water-soluble non-woven fabrics layer, two flank symmetries set up in leak protection's both sides, waterproof basement membrane sets up in the lower surface of anti-permeation layer and the lower surface of two flanks, the. The utility model discloses a degradable sanitary towel novel structure is simple, adopts water-soluble non-woven fabrics layer, water-soluble cotton layer, can improve the degradability of the water-soluble aftertreatment of sanitary towel, and the leak protection piece that sets up simultaneously can carry out the cladding to the edge of imbibition piece, reduces and prevents the side leakage condition of sanitary towel, and the practicality is high.
Description
Technical Field
The utility model relates to a sanitary towel technical field, concretely relates to degradable sanitary towel.
Background
The sanitary towel is a common sanitary article used during female menstrual period, the quality of the sanitary towel is related to female health, and unqualified sanitary towels can easily cause gynecological diseases.
The existing sanitary towel is mainly made of hot air non-woven fabric, melt-blown non-woven fabric, spunlace non-woven fabric and hot-rolled non-woven fabric, is not degradable, is not beneficial to post-treatment of the sanitary towel after use, and causes environmental pollution due to non-degradability. On the other hand, the ventilation, comfort and side leakage prevention of the sanitary napkin are the direction of development and improvement.
Disclosure of Invention
In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide a degradable sanitary towel, this sanitary towel novel structure is simple, through adopting water-soluble non-woven fabrics layer, water-soluble cotton layer, can improve the degradability of the water-soluble aftertreatment of sanitary towel, and the leak protection piece that sets up simultaneously can carry out the cladding to the edge of imbibition piece, reduces and prevents the side leakage condition of sanitary towel, and the practicality is high.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a degradable sanitary towel, includes two flanks that imbibition piece, leak protection piece, waterproof basement membrane and symmetry set up, imbibition piece is including the water-soluble non-woven fabrics layer, water-soluble cotton layer, absorption sandwich layer and the anti-permeability layer that from top to bottom set gradually, leak protection piece by the edge outwards extends all around of anti-permeability layer, and the cladding the upper surface edge on water-soluble non-woven fabrics layer, water-soluble cotton layer, absorption sandwich layer and folding to water-soluble non-woven fabrics layer, two the flank symmetry set up in leak protection piece's both sides, waterproof basement membrane sets up in the lower surface of anti-permeability layer and the lower surface of two flanks, the lower surface of waterproof basement membrane is provided with pastes the layer.
Further, the water-soluble non-woven fabric layer is made of PVA fibers; the water-soluble cotton layer is formed by circularly weaving a plurality of first flower types, PVA yarns are respectively penetrated on the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads of the first flower type circulation, and cotton yarns are respectively penetrated on the 3 rd, 4 th and 7 th cross roads.
Furthermore, each cross road of the first pattern circulation comprises 3 weaving positions, the first weaving position and the third weaving position of the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads are looping units, and the second weaving position of the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads is a non-weaving unit; the first knitting position and the second knitting position of the 3 rd, 4 th and 7 th cross roads are knitting units, and the third knitting position of the 3 rd, 4 th and 7 th cross roads is a non-knitting unit.
Further, the reverse osmosis layer is a cellulose acetate reverse osmosis membrane.
Further, waterproof basement membrane is including the water-soluble membrane of PVA and the hydrophobic membrane of first PTFE that from top to bottom sets gradually, the upper surface of the water-soluble membrane of PVA is connected with the lower surface of reverse osmosis layer, the lower surface of two flanks.
Further, absorb the sandwich layer including the mint fibre layer, carboxymethyl chitosan fibrous layer, the first polymer that set gradually from top to bottom resin layer and the silver fibrous layer that absorbs water, the upper surface on mint fibre layer with the lower surface on water-soluble cotton layer is connected, the lower surface on silver fibrous layer with the upper surface of reverse osmosis layer is connected.
Further, the middle part of the first high polymer water-absorbent resin layer is of an oval structure with both the upper surface and the lower surface protruding.
Further, the leak protection piece includes second polymer water absorbent resin layer and the hydrophobic membrane of second PTFE that from inside to outside sets gradually, the interior surface cladding of second polymer water absorbent resin layer water-soluble non-woven fabrics layer, water-soluble cotton layer, absorb the edge of sandwich layer and fold to the upper surface edge of water-soluble non-woven fabrics layer.
Furthermore, the positions, where the peripheral edges of the water-soluble non-woven fabric layer and the water-soluble cotton layer are overlapped with the anti-leakage piece in a wrapping mode, are provided with grooves through mould pressing.
The beneficial effects of the utility model reside in that: the utility model discloses a degradable sanitary towel novel structure is simple, through adopting water-soluble non-woven fabrics layer, water-soluble cotton layer, can improve the degradability of the water-soluble aftertreatment of sanitary towel, and the leak protection piece that sets up simultaneously can carry out the cladding to the edge of imbibition piece, reduces and prevents the side leakage condition of sanitary towel, and the practicality is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an exploded schematic view of the present invention;
fig. 3 is an exploded view of the absorbent core of the present invention;
fig. 4 is an exploded view of the waterproof backing film of the present invention;
figure 5 is a schematic cross-sectional view of the peripheral edges of the wicking element, the leak-proof element, and the waterproof backing film of the present invention.
The reference signs are: 1-liquid absorbing piece, 11-water soluble non-woven fabric layer, 12-water soluble cotton layer, 13-absorption core layer, 131-mint fiber layer, 132-carboxymethyl chitosan fiber layer, 133-first polymer water-absorbing resin layer, 134-silver fiber layer, 14-reverse osmosis layer, 15-groove, 2-leakage-proof piece, 21-second polymer water-absorbing resin layer, 22-second PTFE hydrophobic membrane, 3-waterproof bottom membrane, 31-PVA water soluble membrane, 32-first PTFE hydrophobic membrane, 33-sticking layer and 4-side wing.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-5, which are not intended to limit the present invention.
See fig. 1-5, a degradable sanitary napkin, two flanks 4 including imbibition piece 1, leak protection piece 2, waterproof basement membrane 3 and symmetry setting, imbibition piece 1 is including water-soluble non-woven fabrics layer 11, water-soluble cotton layer 12, absorption sandwich layer 13 and the reverse osmosis layer 14 that from top to bottom sets gradually, leak protection piece 2 by the marginal outside extension all around of reverse osmosis layer 14, and the cladding water-soluble non-woven fabrics layer 11, water-soluble cotton layer 12, the edge of absorption sandwich layer 13 and the upper surface edge of folding to water-soluble non-woven fabrics layer 11, two flank 4 symmetry set up in the both sides of leak protection piece 2, waterproof basement membrane 3 sets up in the lower surface of reverse osmosis layer 14 and the lower surface of two flanks 4, the lower surface of waterproof basement membrane 3 is provided with pastes layer 33.
The degradable sanitary towel of this embodiment novel structure is simple, through adopting water-soluble non-woven fabrics layer 11, water-soluble cotton layer 12, can improve the water-soluble aftertreatment's of sanitary towel degradability, and the leak protection piece 2 that sets up simultaneously can carry out the cladding to imbibition piece 1's edge, reduces and prevents the edge leakage condition of sanitary towel, and the practicality is high.
Specifically, the lower surface of the waterproof basement membrane 3 is provided with the adhesive layer 33 corresponding to the positions of the liquid absorbing member 1 and the side wings 4, so that the stable adhesion between the sanitary towel and the inner surface and the outer surface of the underpants can be ensured.
The arranged water-soluble non-woven fabric layer 11 and the water-soluble cotton layer 12 can quickly absorb liquid, and under the strong absorption effect of the absorption core layer 13, the liquid absorbed in the water-soluble non-woven fabric layer 11 and the water-soluble cotton layer 12 on the surface is quickly and intensively absorbed to the inner layer, so that the phenomenon of side leakage of the liquid on the surface is reduced.
The arranged reverse osmosis layer 14 can prevent liquid from permeating into the waterproof basement membrane 3 and the underpants, so that the leakage-proof performance of the sanitary towel is improved; and the waterproof basement membrane 3 is then effectively the separation with the liquid in the sanitary towel, avoids permeating to pants and causes the seepage, and the practicality is high.
In this embodiment, the water-soluble nonwoven fabric layer 11 is made of PVA fibers; the water-soluble cotton layer 12 is formed by circularly weaving a plurality of first flower types, PVA yarns are respectively penetrated on the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads of the first flower type circulation, and cotton yarns are respectively penetrated on the 3 rd, 4 th and 7 th cross roads.
In this embodiment, each cross of the first pattern cycle includes 3 knitting positions, the first knitting position and the third knitting position of the 1 st, 2 nd, 5 th, 6 th, and 8 th cross are looping units, and the second knitting position of the 1 st, 2 nd, 5 th, 6 th, and 8 th cross is a non-knitting unit; the first knitting position and the second knitting position of the 3 rd, 4 th and 7 th cross roads are knitting units, and the third knitting position of the 3 rd, 4 th and 7 th cross roads is a non-knitting unit.
The embodiment adopts PVA fibre preparation water-soluble non-woven fabrics layer 11, and intensity high modulus is high, the elongation is low, wear-resisting, acid and alkali resistance, weatherability are good, and nontoxic, pollution-free, do not harm human skin, and is harmless to the human body, and the rate of absorption is good, and the absorption liquid effect is good, can improve the imbibition nature of sanitary towel, has good dispersibility simultaneously: the fiber is not sticky, has good dispersibility in water, is easy to dissolve in water after being used and is easy to degrade.
Similarly, the water-soluble cotton layer 12 is prepared by blending PVA yarns and cotton yarns, so that the skin-friendly effect is good, sensitive skin at private parts is not damaged, the liquid absorption effect is good, liquid penetrating into the water-soluble nonwoven fabric layer 11 can be quickly absorbed, the dispersibility in water is good, the liquid is easy to dissolve in the water, and the degradability of the sanitary towel is improved. The PVA fiber, the PVA yarn and the cotton yarn are all known materials.
In the embodiment, by adopting the weaving structure and the weaving mode, the water-soluble cotton layer 12 obtained by weaving is soft and comfortable, has strong water absorption capacity, can quickly absorb menstrual blood or lochia and other liquids discharged by a human body, and reduces or avoids the phenomenon of side leakage.
The triangular weaving table of the water-soluble cotton layer 12 of the present embodiment is shown in the following table:
| |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| A | Λ | Λ | Λ | Λ | Λ | Λ | Λ | Λ |
| B | - | - | Λ | Λ | - | - | Λ | - |
| C | Λ | Λ | - | - | Λ | Λ | - | Λ |
Wherein, the 'lambda' and the 'minus' are respectively a looping unit and a non-weaving unit. ABC is taken as a cycle.
In this embodiment, the reverse osmosis layer 14 is a cellulose acetate reverse osmosis membrane. The cellulose acetate reverse osmosis membrane adopted by the embodiment has good hydrophilicity, high flux, no toxicity and biodegradability, and improves the degradability of the sanitary towel. The cellulose acetate reverse osmosis membrane used is a known material.
In this embodiment, waterproof basement membrane 3 includes the water-soluble membrane 31 of PVA and the hydrophobic membrane 32 of first PTFE that from top to bottom sets gradually, the upper surface of the water-soluble membrane 31 of PVA is connected with the lower surface of reverse osmosis layer 14, the lower surface of two flanks 4. The water-soluble membrane 31 of PVA that this embodiment set up can the separation liquid, prevents that the liquid permeation of physiology period from to pants on, combines the hydrophobic membrane of PTFE simultaneously, has the hydrophobicity and the gas permeability of preferred, and high porosity, and the entrapment rate is high, and the circulation is high, can entrap liquid, plays the effect of separation, does not influence the circulation of air in this hydrophobic membrane of PTFE simultaneously for the air circulation passes through, improves the gas permeability of sanitary towel, avoids producing stifle hotness sense and breeds the bacterium. The PVA water-soluble film 31 and the PTFE hydrophobic film used are both known materials.
In this embodiment, the absorption core layer 13 includes the mint fiber layer 131, carboxymethyl chitosan fiber layer 132, the first polymer that set gradually from top to bottom and absorbs water resin layer 133 and silver fiber layer 134, the upper surface of mint fiber layer 131 with the lower surface on water-soluble cotton layer 12 is connected, the lower surface of silver fiber layer 134 with the upper surface connection of reverse osmosis layer 14.
The absorption core layer 13 of the embodiment has strong liquid absorption property, can absorb a large amount of liquid, has high absorption efficiency, can prevent the liquid from being on the surface layer of the sanitary towel, and has good water absorption and locking effects; the mint fiber layer 131 is made by blending and spinning effective components such as menthol in high-quality mint and natural fibers such as corn fiber, has the advantages of antibiosis, deodorization, moisture absorption, ventilation, improvement of antibacterial property, moisture absorption and ventilation of the sanitary towel, and refreshing feeling, so that the lower body of a woman is fresh and cool in a special period such as a physiological period, the stuffy feeling is reduced and avoided, the lower body itch caused by the stuffy feeling is reduced, the use feeling of the sanitary towel is improved, and the corn fiber has strong degradability.
And in the carboxymethyl chitosan fibrous layer 132 that sets up, carboxymethyl chitosan fibrous structure contains a large amount of amidogenesis and carboxymethyl group, and the hydroscopicity is high, and the adsorption efficiency is strong, can absorb liquid fast, and water-soluble type is good simultaneously, and the degradability is high, can improve the degradability of sanitary towel.
The first high molecular water-absorbent resin layer 133 adopts a high molecular water-absorbent resin SAP, which is short for SAP, has extremely high water absorption performance, can absorb hundreds of times and even thousands of times of water by weight of the first high molecular water-absorbent resin layer, has very strong water retention capacity, can improve the water absorption and water retention performance of the water-absorbent core layer, enables the prepared water-absorbent core layer 13 to absorb a large amount of liquid, improves the water absorption and water locking performance of the sanitary napkin, and reduces or avoids the side leakage phenomenon.
The silver fiber layer 134 has good antibacterial and deodorant properties, and can be combined with proteins inside and outside the bacterial cell membrane and enable the proteins to be solidified, so that the breathing and the reproduction process of bacterial cells are blocked, the breeding of bacteria in the sanitary towel is reduced or avoided, and the reproductive health of a human body is guaranteed.
Wherein, the adopted mint fiber, carboxymethyl chitosan fiber, high molecular water-absorbing resin and silver fiber are all known materials.
In this embodiment, the middle of the first high polymer water absorbent resin layer 133 is an oval structure with both convex upper and lower surfaces. In this embodiment, the upper surface and the lower surface are both convex, so that the middle part of the first high polymer water-absorbent resin layer 133 is in an oval structure from a vertical section or a cross section, and the thickness of the middle part of the first high polymer water-absorbent resin layer 133 is thicker than the thickness of the periphery, so that a large amount of liquid can be absorbed, the liquid absorption effect of the middle part of the sanitary napkin is improved, and the side leakage caused by the liquid flowing to the periphery of the sanitary napkin is reduced or avoided; on the other hand, the convex elliptical structure is attached to the perineum of a human body, so that menstrual blood in the physiological period of a woman can be absorbed timely and quickly, and the side leakage condition of the woman in the walking or sleeping process is reduced.
In this embodiment, the leakage preventing member 2 includes a second polymeric water absorbent resin layer 21 and a second PTFE hydrophobic membrane 22, which are sequentially disposed from inside to outside, and the inner surface of the second polymeric water absorbent resin layer 21 wraps the edges of the water-soluble nonwoven fabric layer 11, the water-soluble cotton layer 12, and the absorbent core layer 13 and is folded to the edge of the upper surface of the water-soluble nonwoven fabric layer 11.
This embodiment is through setting up second polymer water-absorbent resin layer 21 and the hydrophobic membrane 22 of second PTFE, can utilize the hygroscopicity absorption of second polymer water-absorbent resin layer 21 to flow to sanitary towel liquid all around, and combine the hydrophobic membrane 22 of second PTFE to carry out the separation of liquid, even the phenomenon that liquid flows all around toward sanitary towel appears, also can in time be absorbed by second polymer water-absorbent resin layer 21, and by the hydrophobic membrane 22 separation of second PTFE, the edge of avoiding liquid outflow sanitary towel leads to the edge leakage phenomenon, the practicality is high. And the edge of leak protection piece 2 to water-soluble non-woven fabrics layer 11, water-soluble cotton layer 12, absorption sandwich layer 13 all wraps, can avoid liquid to flow out from the edge of water-soluble non-woven fabrics layer 11, water-soluble cotton layer 12, absorption sandwich layer 13, realizes the all surround formula, reduces or avoids the phenomenon of edge leakage. The PTFE hydrophobic membrane used is a conventionally known material.
In this embodiment, a groove 15 is formed at a position where the peripheral edges of the water-soluble nonwoven fabric layer 11 and the water-soluble cotton layer 12 are overlapped with the leak preventer 2 by molding.
In the embodiment, the grooves 15 are formed by mould pressing, the edges of the water-soluble non-woven fabric layer 11 and the water-soluble cotton layer 12 after mould pressing are compact, so that the phenomenon that liquid flows from the middle part of the water-soluble non-woven fabric layer 11 and the middle part of the water-soluble cotton layer 12 to the edges of the peripheries is reduced, the side leakage condition that the liquid penetrates into the edges is reduced or avoided through the compact edges, the liquid is enabled to flow to the absorption core layer 13, and the absorption rate of the absorption core layer 13 is improved; simultaneously, the recess 15 that the mould pressing set up can be with leak protection piece 2 folding to the part at water-soluble non-woven fabrics layer 11's upper surface edge mould pressing to recess 15 simultaneously, avoids leak protection piece 2 folding to the part at water-soluble non-woven fabrics layer 11's upper surface edge and human skin friction to lead to the marginal perk of leak protection piece 2, and then influences the leak protection effect of leak protection piece 2 to liquid, and the practicality is high.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (9)
1. A degradable sanitary napkin characterized by: including imbibition piece, leak protection piece, waterproof basement membrane and two flanks that the symmetry set up, imbibition piece is including the water-soluble non-woven fabrics layer, water-soluble cotton layer, absorption sandwich layer and the anti-permeation layer that from top to bottom set gradually, leak protection piece by the edge outwards extends all around of anti-permeation layer, and the cladding the edge of water-soluble non-woven fabrics layer, water-soluble cotton layer, absorption sandwich layer and fold to the upper surface edge on water-soluble non-woven fabrics layer, two the flank symmetry set up in leak protection piece's both sides, waterproof basement membrane sets up in the lower surface of anti-permeation layer and the lower surface of two flanks, the lower surface of waterproof basement membrane is provided with pastes the layer.
2. A degradable sanitary napkin according to claim 1, wherein: the water-soluble non-woven fabric layer is made of PVA fibers; the water-soluble cotton layer is formed by circularly weaving a plurality of first flower types, PVA yarns are respectively penetrated on the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads of the first flower type circulation, and cotton yarns are respectively penetrated on the 3 rd, 4 th and 7 th cross roads.
3. A degradable sanitary napkin according to claim 2, wherein: each cross road of the first pattern circulation comprises 3 weaving positions, the first weaving position and the third weaving position of the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads are looping units, and the second weaving position of the 1 st, 2 nd, 5 th, 6 th and 8 th cross roads is a non-weaving unit; the first knitting position and the second knitting position of the 3 rd, 4 th and 7 th cross roads are knitting units, and the third knitting position of the 3 rd, 4 th and 7 th cross roads is a non-knitting unit.
4. A degradable sanitary napkin according to claim 1, wherein: the reverse osmosis layer is a cellulose acetate reverse osmosis membrane.
5. A degradable sanitary napkin according to claim 1, wherein: the waterproof basement membrane includes the water-soluble membrane of PVA and the hydrophobic membrane of first PTFE that from top to bottom sets gradually, the upper surface of the water-soluble membrane of PVA is connected with the lower surface of reverse osmosis layer, the lower surface of two flanks.
6. A degradable sanitary napkin according to claim 1, wherein: absorb the sandwich layer including the mint fibre layer, carboxymethyl chitosan fibre layer, the first polymer resin layer that absorbs water and the silver fibre layer that from top to bottom set gradually, the upper surface on mint fibre layer with the lower surface on water-soluble cotton layer is connected, the lower surface on silver fibre layer with the upper surface connection of anti-permeation layer.
7. A degradable sanitary napkin according to claim 6, wherein: the middle part of the first high-molecular water-absorbing resin layer is of an oval structure with the upper surface and the lower surface both protruding.
8. A degradable sanitary napkin according to claim 1, wherein: the leak protection piece includes that from interior to exterior sets gradually second polymer absorbent resin layer and second PTFE hydrophobic membrane, the inner surface cladding of second polymer absorbent resin layer the edge of water-soluble non-woven fabrics layer, water-soluble cotton layer, absorption sandwich layer and fold to the upper surface edge of water-soluble non-woven fabrics layer.
9. A degradable sanitary napkin according to claim 1, wherein: and grooves are formed in the positions, which are overlapped with the anti-leakage parts in a wrapping mode, of the peripheral edges of the water-soluble non-woven fabric layer and the water-soluble cotton layer.
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| CN201921096869.5U CN211433699U (en) | 2019-07-12 | 2019-07-12 | Degradable sanitary towel |
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| CN201921096869.5U CN211433699U (en) | 2019-07-12 | 2019-07-12 | Degradable sanitary towel |
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| CN211433699U true CN211433699U (en) | 2020-09-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279522A (en) * | 2019-07-12 | 2019-09-27 | 广东春夏新材料科技股份有限公司 | A kind of degradable sanitary napkin and preparation method thereof |
| CN114053039A (en) * | 2021-10-12 | 2022-02-18 | 方丹 | Baby diaper with strong water absorption |
| CN115177439A (en) * | 2022-07-05 | 2022-10-14 | 杭州诺邦无纺股份有限公司 | Method for preparing flushable fully-degradable sanitary towel and pad |
-
2019
- 2019-07-12 CN CN201921096869.5U patent/CN211433699U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279522A (en) * | 2019-07-12 | 2019-09-27 | 广东春夏新材料科技股份有限公司 | A kind of degradable sanitary napkin and preparation method thereof |
| CN114053039A (en) * | 2021-10-12 | 2022-02-18 | 方丹 | Baby diaper with strong water absorption |
| CN114053039B (en) * | 2021-10-12 | 2023-09-22 | 泗县微腾知识产权运营有限公司 | Baby diaper with strong water absorption |
| CN115177439A (en) * | 2022-07-05 | 2022-10-14 | 杭州诺邦无纺股份有限公司 | Method for preparing flushable fully-degradable sanitary towel and pad |
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