CN218979485U - Quick-permeation absorption core - Google Patents
Quick-permeation absorption core Download PDFInfo
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- CN218979485U CN218979485U CN202221881944.0U CN202221881944U CN218979485U CN 218979485 U CN218979485 U CN 218979485U CN 202221881944 U CN202221881944 U CN 202221881944U CN 218979485 U CN218979485 U CN 218979485U
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- Prior art keywords
- layer
- resin layer
- absorbent core
- absorbent
- diversion trench
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 68
- 229920005989 resin Polymers 0.000 claims abstract description 68
- 239000002250 absorbent Substances 0.000 claims abstract description 60
- 230000002745 absorbent Effects 0.000 claims abstract description 53
- 238000005253 cladding Methods 0.000 claims abstract description 11
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 description 97
- 210000002700 urine Anatomy 0.000 description 15
- 230000006872 improvement Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 4
- 238000005213 imbibition Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present utility model provides a fast-penetrating absorbent core, the core of which comprises: the hot air non-woven fabric layer is sequentially arranged from top to bottom; a fluff pulp layer; an upper cladding layer; the high-molecular water-absorbing resin layer is internally provided with a diversion trench; and a lower cladding layer. The absorbent core has the characteristics of rapid permeation function, rapid absorption speed and low rewet, and the absorption speed is increased and the utilization rate of the product is improved through the design of the diversion trench.
Description
Technical Field
The utility model belongs to the technical field of disposable sanitary products, and relates to a fast-penetrating absorbent core.
Background
Disposable absorbent articles such as paper diapers and pull-up pants have two main absorbent cores as the main absorbent parts. Firstly, a mixed structure of fluff pulp and high-absorptivity resin; and the absorbent paper core mainly comprises super absorbent resin, fluffy cotton and other coating materials. The former is easy to have lump after imbibition and influence the use feeling, and the latter is easy to have the condition of not dry after imbibition and too low absorption speed after imbibition for many times, and uncomfortable feeling is brought to a user.
Patent application number CN 111529213A discloses a core having a fluff pulp layer, an upper absorbent layer, a high molecular water-absorbent resin layer, and a lower absorbent layer. Fluff pulp and polymer are layered, and lump formation is prevented by fixing the fluff pulp, but the problem that the penetration function is poor due to poor local diffusion still exists in an independent polymer layer although a diversion trench is arranged, so that the use feeling is affected.
In summary, in order to solve the defects in the prior art, the utility model designs the rapid-permeation absorbent core which has the advantages of effective improvement of permeation function, rapid absorption speed and low rewet.
Disclosure of Invention
The utility model provides a fast-penetrating absorbent core for solving the problems existing in the prior art. The absorbent core has the characteristics of rapid permeation function, rapid absorption and low reflux permeation, and the absorption speed is increased by the design of the diversion trench, and the utilization rate of the product is improved.
The aim of the utility model can be achieved by the following technical scheme:
a fast-penetrating absorbent core, the core of the fast-penetrating absorbent core comprising: the hot air non-woven fabric layer is sequentially arranged from top to bottom;
a fluff pulp layer;
an upper cladding layer;
the high-molecular water-absorbing resin layer is internally provided with a diversion trench;
and a lower cladding layer.
As a further improvement of the scheme, the high-molecular water-absorbing resin layer comprises an upper-layer high-absorbing resin layer, fluffy cotton and a lower-layer high-absorbing resin layer which are sequentially arranged from top to bottom.
As a further improvement of the present embodiment, the absorption rate of the upper layer highly absorbent resin 41 is 16s to 26s.
As a further improvement of the scheme, the absorption speed of the lower layer of the high-absorptivity resin layer is 18s-30s
As a further improvement of the scheme, the upper layer high-absorptivity resin layer and the lower layer high-absorptivity resin layer are internally provided with diversion trenches, each diversion trench comprises a first diversion trench which is longitudinally arranged in the middle of the upper layer high-absorptivity resin layer and the lower layer high-absorptivity resin layer, and the tail ends of the first diversion trenches are provided with a second diversion trench and a third diversion trench which are outwards arranged in an extending mode.
As a further improvement of the scheme, the second diversion trench and the third diversion trench are arranged at an oblique angle with each other.
As a further improvement of the scheme, the second diversion trench and the third diversion trench are mutually arranged at an inclined angle of 45 degrees.
As a further improvement of the scheme, the width setting range of the first diversion trench and the second diversion trench is 5 mm-10 mm.
Compared with the prior art, the utility model has reasonable structural design and has the following beneficial effects:
1) The fluff pulp layer of the absorbent core can quickly absorb urine, the lower liquid can be prevented from being permeated back, and the high-absorbent resin layer is effectively matched through the upper high-absorbent resin layer and the lower high-absorbent resin layer which are arranged, namely, the high-absorbent resin with two different performances can enable the absorption speed of the core body to be higher, the permeation is stronger, the lower layer is placed by the high-molecular weight which is high in water retention, and the moisture can be better locked;
2) Furthermore, the fishbone-shaped diversion trenches are arranged in the upper layer of the high-absorptivity resin layer and the lower layer of the high-absorptivity resin layer, so that the permeability and diffusion capacity of urine in the absorbent resin layer are further enhanced, the utilization rate of the core body is improved, the rewet is further reduced, and a user has better use experience.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of the structure of the flow guiding groove of the upper layer of highly absorbent resin and the lower layer of highly absorbent resin.
In the drawing the view of the figure,
1-a hot air non-woven fabric layer;
2-fluff pulp layer;
3-an upper cladding layer;
40-a high molecular water-absorbing resin layer; 41-an upper superabsorbent resin layer; 42-fluffy cotton; 43-a lower superabsorbent resin layer;
5-lower cladding layer;
6-diversion trenches; 61-a first diversion trench; 62-a second diversion trench; 63-third diversion trench.
Detailed Description
The technical scheme of the utility model is further described below with reference to the embodiment and the attached drawings.
As shown in figures 1 and 2 of the drawings,
example 1
A fast-penetrating absorbent core, the core of the fast-penetrating absorbent core comprising: the hot air non-woven fabric layer 1 is sequentially arranged from top to bottom;
a fluff pulp layer 2;
an upper cladding layer 3;
a high molecular water-absorbing resin layer 40, wherein a diversion trench 6 is arranged in the high molecular water-absorbing resin layer 40;
and a lower cladding layer 5.
In this embodiment, the high molecular water absorbent resin layer 40 includes an upper layer of high absorbent resin layer 41, fluffy cotton 42, and a lower layer of high absorbent resin layer 43, which are disposed in this order from top to bottom.
In the present embodiment, the absorption speed of the upper layer highly absorbent resin 41 is greater than that of the lower layer highly absorbent resin 43; more specifically, the absorption rate of the upper layer highly absorbent resin 41 is 16s to 26s, and the absorption rate of the lower layer highly absorbent resin 43 is 18s to 30s.
In this embodiment, hot-blast non-woven fabrics layer 1 is hydrophilic, fluffy and soft, when hot-blast non-woven fabrics layer 1 is contacted to the urine, just permeate fast to the fine hair thick liquid layer 2 of lower floor, and fine hair thick liquid is fixed through hot-blast non-woven fabrics layer, can effectively prevent to absorb urine back and play to stick together and expose, moreover on the fine hair thick liquid layer 2 long and many fibre, can be with the quick absorption of urine and diffuse to whole fine hair thick liquid layer, and the urine can continue to ooze under the action of gravity.
The arrangement of the fluff pulp layer 2 and the hot air non-woven fabric layer 1 can also prevent the liquid at the lower layer from being rewet for a long time, and keep the surface layer dry and comfortable for a long time. The urine continues to infiltrate downwards, penetrates the upper cladding layer 3 and reaches the main absorption structure of the core body: a high molecular water absorbing resin layer 40.
In the present embodiment, the super absorbent resin layer 40 is provided with a 3-layer structure including an upper super absorbent resin layer 41, fluffy cotton 42, and a lower super absorbent resin layer 43. The bulking cotton 42 is centrally located and serves to receive the superabsorbent resin particles on the one hand and also to provide a bulking space for the expansion of the superabsorbent resin on the other hand, helping to better penetrate and spread the liquid. The selected high molecular absorbent resin is the product of the aqueous solution polymerization process in the prior art, and the product has the characteristic of good long-time dryness. Because the absorbent core has the main characteristic of rapid permeation, the high polymer is mainly selected to have rapid absorption speed, but the pursuit of the rapid absorption can cause the conditions of insufficient absorption capacity, weak water retention capacity, high rewet and the like. Therefore, the upper layer of highly absorbent resin layer 41 was selected to have a high absorption rate of 16s to 26s in terms of "vortex method", the lower layer of highly absorbent resin layer 43 was selected to have a high absorption rate and a high absorption capacity and water retention capacity, and the upper layer of highly absorbent resin layer 41 was selected to have a high absorption rate of 18s to 30s in terms of "vortex method", the lower layer of highly absorbent resin layer was tested in terms of EDANA-12, the free expansion rate of 0.9% brine was 66g/g to 74g/g, and the centrifuge retention rate was 34g/g to 38g/g.
Through the collocation of the upper layer high-absorptivity resin layer 41 and the lower layer high-absorptivity resin layer 43, urine can be quickly absorbed and locked, and the conditions of high rewet, urine leakage and the like are not easy to occur.
Example 2
Example 1 differs from example 2 only in that:
the high-absorbency resin layer 41 of upper strata, the high-absorbency resin layer 43 of lower floor are equipped with guiding gutter 6 in, guiding gutter 6 includes the first guiding gutter 61 that is located the high-absorbency resin layer 41 of upper strata, the high-absorbency resin layer 43 of lower floor middle longitudinal setting, the terminal of first guiding gutter 61 all is provided with the second guiding gutter 62 and the third guiding gutter 63 that extend outwards and set up.
In this embodiment, when urine reaches the super absorbent resin layer 4, the first diversion trench 61 can help the urine to diffuse to the periphery rapidly, so as to prevent urine from collecting in the middle, and the second diversion trench 62 can guide the urine to diffuse to the two ends of the core, so as to improve the utilization rate of the two ends of the core, thereby improving the permeation efficiency and reducing the rewet.
Example 3
Example 3 differs from example 2 only in that:
the second diversion trench 62 and the third diversion trench 63 are arranged at an oblique angle;
the second diversion trench 62 and the third diversion trench 63 are mutually arranged at an inclined angle of 45 degrees;
the width of the first diversion trench 62 and the second diversion trench 63 is set to be 5 mm-10 mm.
In this embodiment, as shown in fig. 2, the upper layer of the super absorbent resin layer 41 and the lower layer of the super absorbent resin layer 43 are both provided with the diversion trench 6, and the diversion trench 6 is in a "fishbone shape", in this embodiment, the specific structure of the diversion trench 6 is set, so that the first diversion trench 61 can help the first diversion trench to diffuse to the periphery rapidly when the device is specifically used, prevent urine from gathering in the middle, and the second diversion trench can guide and diffuse urine to the two ends of the core, thereby improving the utilization rate of the two ends of the core, further improving the permeation efficiency and reducing the rewet.
In this embodiment, the super absorbent resin in the super absorbent resin layer 4 may be three-dimensionally sprayed by using the 3D printing principle, and the 3D printing technology is a relatively conventional technical means at present, so as to effectively fix the position thereof.
The preferred embodiments of the present utility model are described herein, but the scope of the present utility model is not limited thereto. Modifications, additions, or substitutions of the described embodiments by those skilled in the art are intended to be within the scope of the present utility model.
Claims (8)
1. A rapid-penetration absorbent core, wherein the core of the rapid-penetration absorbent core comprises: sequentially arranged from top to bottom
A hot air non-woven fabric layer (1);
a fluff pulp layer (2);
an upper cladding layer (3);
a high-molecular water-absorbing resin layer (40), wherein a diversion trench (6) is arranged in the high-molecular water-absorbing resin layer (40);
and a lower cladding layer (5).
2. The rapid-penetration absorbent core according to claim 1, wherein the high-molecular absorbent resin layer (40) comprises an upper high-absorbent resin layer (41), fluffy cotton (42) and a lower high-absorbent resin layer (43) which are arranged in sequence from top to bottom.
3. A fast penetrating absorbent core according to claim 2, characterized in that the upper superabsorbent resin layer (41) has an absorption rate of 16s-26s.
4. A fast penetrating absorbent core according to claim 2 or 3, characterized in that the lower layer of superabsorbent resin (43) has an absorption rate of 18s-30s.
5. The rapid-penetration absorbent core according to claim 2, wherein the upper layer of high-absorbency resin layer (41) and the lower layer of high-absorbency resin layer (43) are provided with guide grooves (6), the guide grooves (6) comprise first guide grooves (61) longitudinally arranged in the middle of the upper layer of high-absorbency resin layer (41) and the lower layer of high-absorbency resin layer (43), and the tail ends of the first guide grooves (61) are provided with second guide grooves (62) and third guide grooves (63) which extend outwards.
6. A fast-penetrating absorbent core according to claim 5, characterized in that the second (62) and third (63) channels are arranged at an oblique angle to each other.
7. A fast-penetrating absorbent core according to claim 5, characterized in that the second (62) and third (63) channels are arranged at an oblique angle of 45 ° to each other.
8. A fast-penetrating absorbent core according to claim 5, characterized in that the width of the first and second channels (61, 62) is arranged in the range of 5-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221881944.0U CN218979485U (en) | 2022-07-20 | 2022-07-20 | Quick-permeation absorption core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221881944.0U CN218979485U (en) | 2022-07-20 | 2022-07-20 | Quick-permeation absorption core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218979485U true CN218979485U (en) | 2023-05-09 |
Family
ID=86217540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221881944.0U Active CN218979485U (en) | 2022-07-20 | 2022-07-20 | Quick-permeation absorption core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218979485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116570432A (en) * | 2023-05-11 | 2023-08-11 | 美佳爽（中国）有限公司 | Novel quick-drying absorbent core |
-
2022
- 2022-07-20 CN CN202221881944.0U patent/CN218979485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116570432A (en) * | 2023-05-11 | 2023-08-11 | 美佳爽（中国）有限公司 | Novel quick-drying absorbent core |
| WO2024230008A1 (en) * | 2023-05-11 | 2024-11-14 | 美佳爽（中国）有限公司 | Novel absorbent core with rapid absorption and dryness |
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