Absorption product with longitudinal slotting wrapping type core body

By setting up longitudinal grooves on the end surface of the absorbent core and combining leakage-proof partitions and rubber, the poor flow diversion performance and liquid side leakage caused by expansion and weight gain after water absorption are solved, and better longitudinal flow diversion is achieved and breathability.

CN222487850UActive Publication Date: 2025-02-18GUANGDONG MAXIER SANITARY PROD CO LTD
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Patent Information

Application Number
CN202420937310.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-02-18
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

The existing absorbent core expands and increases weight after absorbing water, resulting in poor flow diversion performance, local accumulation blocks the air flow channel, affecting the prevention of side leakage and breathability, and users also feel uncomfortable.

Method used

The longitudinal grooved encapsulated core design is adopted, and the end surface of the absorbent core is provided with no less than two grooves extending along its length. These grooves enhance the longitudinal flow guiding performance and pass leakage-proof partitions and rubber The combination of the vessel forms a boat-shaped cushion structure to prevent liquid leakage.

Benefits of technology

It improves the longitudinal guiding performance and breathability of the absorbent core, effectively prevents liquid leakage, and avoids liquid reverse osmosis caused by bending and extrusion after liquid absorption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an absorption product with a longitudinal slotting wrapping type core body, a paper diaper main body is composed of a waistline structure and an absorption structure, the absorption structure comprises a surface layer, an absorption layer and a bottom layer, two sides of the absorption core body are bonded and fixed with leakage-proof partition edges through bonding layers, the bottom end of the absorption core body is compounded with the bottom layer through a first bonding layer, and a second bonding layer is arranged at the bottom end of the absorption core body. Grooves are formed in the longitudinal direction of the end face of the absorption core body, the longitudinal flow guide performance of the absorption core body is enhanced through the grooves, meanwhile, the ventilation effect is achieved, air circulation in the core body is improved so that rapid permeation can be achieved, and when the absorption core is used, through common lifting of the leakage-proof partition edges and the side edge rubber bands, the leakage-proof partition edges and the side edge rubber bands, the leakage-proof partition edges and the side edge rubber bands are not prone to falling off. The two sides and the middle of the absorption core body form a ship-shaped pocket-shaped structure, side leakage of liquid can be effectively prevented, the grooves provide bending allowance generated when the absorption core body falls after absorbing liquid, and liquid reverse osmosis caused by bending extrusion is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of absorbent products, in particular to a diaper with a longitudinally slotted wrapped absorbent core. Background Art

[0002] Diapers are generally composed of three main parts: the surface layer, the absorbent core layer and the base fabric. The surface layer is close to the child's body, which can promote the rapid penetration of urine and effectively prevent back-seepage, so that the surface of the diaper remains dry. The absorbent core layer is mainly capable of capturing and quickly absorbing urine, dispersing urine or diffusing it throughout the core layer through capillary action, and finally absorbing and storing urine.

[0003] In the existing absorbent core, the absorbent core will swell and gain weight after absorbing water. Some cores with poor conduction and permeability performance will swell and accumulate locally after absorbing liquid, which will block the air flow path inside the core and cause local deformation of the core, affecting the overall side leakage prevention and breathability of the core. At the same time, the user will also feel uncomfortable due to the accumulation of a large amount of swollen material in the crotch. Utility Model Content

[0004] In view of the technical defects existing in the background technology, the utility model proposes an absorbent product with a longitudinally slotted wrapping core body, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0005] An absorbent product with a longitudinally grooved wrapping core comprises a diaper body, wherein the diaper body is composed of a waist structure and an absorbent structure, wherein the absorbent structure comprises a surface layer, an absorbent layer and a bottom layer, wherein the absorbent layer is composed of a covering layer and an absorbent core sandwiched in the covering layer, wherein the end surface of the absorbent core is provided with no less than two grooves extending along its length direction, wherein a first adhesive layer is provided between the absorbent layer and the bottom layer, wherein leakproof edges are provided on both sides of the width direction of the absorbent layer, wherein a first side elastic band is bonded between a side of the bottom end of the leakproof edge close to the absorbent layer and the bottom layer, wherein a second side elastic band is bonded between a side of the leakproof edge away from the absorbent layer and the bottom layer, and wherein a third side elastic band is sandwiched between the top end of the leakproof edge.

[0006] As an improvement of the above solution, both ends of the groove extend to align with the ends of the absorbent core in the length direction, and the groove includes a first groove arranged on the upper end surface of the absorbent core and a second groove arranged on the lower end surface of the absorbent core.

[0007] As an improvement of the above solution, the number of the first grooves is two, and they are respectively close to the two sides of the absorbent core in the width direction, and the extension length of the first adhesive layer in the width direction does not exceed the first groove.

[0008] As an improvement of the above scheme, the leak-proof partition edge includes a first leak-proof partition edge and a second leak-proof partition edge symmetrically arranged on both sides of the absorption layer, and the first leak-proof partition edge and the second leak-proof partition edge are both formed by folding a single layer of water-repellent non-woven fabric, and the water-repellent non-woven fabric is sandwiched between the bottom layer and the absorption layer.

[0009] As an improvement of the above solution, the covering layer extends along the upper end surface of the absorbent core toward both sides of the absorbent core and then folds over to cover the side edges of the absorbent core, and the end of the covering layer extends between the absorbent core and the bottom layer.

[0010] As an improvement of the above solution, both sides of the surface layer extend into the gap between the absorption layer and the anti-leakage partition edge, a second adhesive layer is provided between the surface layer and the side edge of the absorption layer, and a third adhesive layer is provided between the surface layer and the anti-leakage partition edge.

[0011] As an improvement of the above scheme, the waist structure includes a front waist and a rear waist that are integrally extended from the surface layer and the bottom layer, the end widths of the surface layer and the bottom layer are consistent, and the width of the middle of the surface layer is smaller than the width of the middle of the bottom layer.

[0012] The beneficial effects of the utility model are as follows: the two sides of the absorbent core are bonded and fixed to the leak-proof partition edge by an adhesive layer, the bottom end of the absorbent core is compounded with the bottom layer by a first adhesive layer, and a groove is longitudinally opened along the end surface of the absorbent core, the longitudinal flow conduction performance of the absorbent core is enhanced by the groove, and at the same time, a breathable effect is achieved, and the air circulation inside the core is increased to achieve rapid penetration. When in use, the two sides and the middle part of the absorbent core are pulled down by the leak-proof partition edge and the side elastic bands, so that a boat-shaped pocket structure is formed, which can effectively prevent the side leakage of liquid, and the groove provides a bending margin for the absorbent core when it falls after absorbing liquid, so as to prevent liquid reverse osmosis caused by bending and squeezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the first implementation method of the utility model.

[0014] Figure 2 This is a schematic diagram of the main structure of the diaper of the utility model.

[0015] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0016] Figure 4 This is a schematic structural diagram of a second embodiment of the present utility model.

[0017] Figure 5 It is a schematic diagram of the structure of the core of the utility model after absorbing liquid and increasing weight and falling.

[0018] Among them: diaper body 1, waist structure 2, front waist 201, back waist 202, absorbent structure 3, surface layer 4, second adhesive layer 401, third adhesive layer 402, absorbent layer 5, covering layer 501, absorbent core 502, bottom layer 6, groove 7, first groove 701, second groove 702, first adhesive layer 8, leak-proof partition 9, first leak-proof partition 901, second leak-proof partition 902, first side elastic band 903, second side elastic band 904, third side elastic band 905. DETAILED DESCRIPTION

[0019] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0020] like Figure 1 and Figure 2 As shown, an absorbent product with a longitudinally grooved wrapping core body comprises a diaper body 1, wherein the diaper body 1 is composed of a waist structure 2 and an absorbent structure 3, wherein the absorbent structure 3 comprises a surface layer 4, an absorbent layer 5 and a bottom layer 6, wherein the absorbent layer 5 is composed of a covering layer 501 and an absorbent core 502 sandwiched in the covering layer 501, wherein the end surface of the absorbent core 502 is provided with no less than two grooves 7 extending along its length direction, a first adhesive layer 8 is provided between the absorbent layer 5 and the bottom layer 6, leakproof edges 9 are provided on both sides of the absorbent layer 5 in the width direction, a first side elastic band 903 is bonded between the bottom end of the leakproof edge 9 close to the side of the absorbent layer 5 and the bottom layer 6, a second side elastic band 904 is bonded between the side of the leakproof edge 9 away from the absorbent layer 5 and the bottom layer 6, and a third side elastic band 905 is sandwiched at the top of the leakproof edge 9.

[0021] Furthermore, in the above scheme, both ends of the groove 7 extend to be aligned with the ends of the absorption core 502 in the length direction, and the groove 7 includes a first groove 701 arranged on the upper end surface of the absorption core 502 and a second groove 702 arranged on the lower end surface of the absorption core 502.

[0022] like Figure 1As shown, in the structure of the utility model, the upper end surface of the absorbent core 502 is provided with a first groove 701, and the lower end surface of the absorbent core 502 is provided with a second groove 702. The first groove 701 and the second groove 702 both extend along the length direction of the absorbent core 502. The outer layer of the absorbent core 502 is coated with a coating layer 501. The first groove 701 and the second groove 702 form an air flow channel in the length direction of the absorbent core 502, thereby increasing the air circulation inside the core.

[0023] like Figure 1 As shown, it should be noted that when the liquid penetrates through the surface layer 4 to the end surface of the absorbent core 502, the first groove 701 has a diversion effect on a large amount of local liquid accumulation. When the liquid contacts the position of the covering layer 501 corresponding to the first groove 701, it can quickly seep downward and at the same time be diverted by the first groove 701 toward the end of the absorbent core 502 to avoid local liquid accumulation.

[0024] like Figure 5 As shown, it should be noted that the second groove 702 is opened on the bottom end surface of the absorbent core 502, and the second groove 702 plays a breathable role before the absorbent core 502 absorbs liquid and expands. After the absorbent core 502 absorbs liquid and expands, the middle part of the absorbent core 502 gains weight and falls to form a boat-shaped pocket structure. The second groove 702 opens to both sides along the groove during the process of weight gain and falling, providing a deformation margin for the bottom end surface of the absorbent core 502 to open.

[0025] Furthermore, in the above solution, the number of the first grooves 701 is two, and they are respectively close to the two sides of the absorbent core 502 in the width direction, and the extension length of the first adhesive layer 8 in the width direction does not exceed the first grooves 701.

[0026] Furthermore, in the above scheme, the waist structure 2 includes a front waist circumference 201 and a rear waist circumference 202 which are integrally extended from the surface layer 4 and the bottom layer 6, the width dimensions of the ends of the surface layer 4 and the bottom layer 6 are consistent, the width dimension of the middle part of the surface layer 4 is smaller than the width dimension of the middle part of the bottom layer 6, and the leak-proof partition edges 9 are provided on both sides of the middle part of the surface layer 4, and the leak-proof partition edges 9 include a first leak-proof partition edge 901 and a second leak-proof partition edge 902 which are symmetrically arranged on both sides of the absorption layer 5, and the first leak-proof partition edge 901 and the second leak-proof partition edge 902 are both formed by folding a single layer of water-repellent non-woven fabric, and the water-repellent non-woven fabric is sandwiched between the bottom layer 6 and the absorption layer 5.

[0027] Furthermore, in the above scheme, the covering layer 501 extends along the upper end surface of the absorbent core 502 toward both sides of the absorbent core 502 and then folds over to cover the side edges of the absorbent core 502 , and the end of the covering layer 501 extends between the absorbent core 502 and the bottom layer 6 .

[0028] Furthermore, in the above scheme, both sides of the surface layer 4 extend into the gap between the absorption layer 5 and the anti-leakage partition edge 9, a second adhesive layer 401 is provided between the side edges of the surface layer 4 and the absorption layer 5, and a third adhesive layer 402 is provided between the surface layer 4 and the anti-leakage partition edge 9.

[0029] like Figure 1 , Figure 3 and Figure 5 As shown, in the first embodiment of the utility model, the upper end surface of the absorbent core 502 is provided with two first grooves 701, and the first grooves 701 are symmetrically arranged along the central axis of the absorbent core 502. The lower end surface of the absorbent core 502 is provided with a plurality of second grooves 702 at equal intervals. The bottom of the absorbent core 502 is bonded and fixed to the bottom layer 6 by the first adhesive layer 8, and the two sides of the absorbent core 502 are bonded and fixed to the third adhesive layer 402 and the leak-proof partition edge 9 by the second adhesive layer 401. After the absorbent core 502 absorbs liquid and gains weight, the middle part of the absorbent core 502 gains weight and falls, and the side of the absorbent core 502 is lifted up by the leak-proof partition edge 9, thereby forming a boat-shaped pocket structure. The first groove 701 provides a shrinkage margin for the deformation of the end surface of the absorbent core 502 to prevent the end surface from being squeezed and causing liquid reverse osmosis.

[0030] It should be noted that the absorbent core 502 is divided into a left side area, a middle area and a right side area by the first groove 701, the width of the first adhesive layer 8 is smaller than the distance between two adjacent second grooves 702, and the bonding range of the first adhesive layer 8 does not exceed the middle area.

[0031] like Figure 4 and Figure 5As shown, in the second embodiment of the utility model, the upper end surface of the absorption core 502 is provided with a plurality of first grooves 701, and the first grooves 701 are arranged at equal intervals along the width direction of the absorption core 502, and the lower end surface of the absorption core 502 is provided with a plurality of second grooves 702, and the second grooves 702 are arranged at equal intervals along the width direction of the absorption core 502. Between two adjacent second grooves 702 corresponding to the central axis position of the absorption core 502, after the absorption core 502 absorbs and gains weight, both the first grooves 701 and the second grooves 702 provide deformation margins for the weight gain deformation of the absorption core 502, thereby effectively avoiding blockage of the air flow channels inside and outside the absorption core 502 due to new expansion, thereby enhancing the breathability effect of the core.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An absorbent article having a longitudinally grooved wrapping core, characterized in that: The diaper comprises a diaper body (1), wherein the diaper body (1) comprises a waist structure (2) and an absorbent structure (3), wherein the absorbent structure (3) comprises a surface layer (4), an absorbent layer (5) and a bottom layer (6), wherein the absorbent layer (5) comprises a covering layer (501) and an absorbent core (502) sandwiched in the covering layer (501), wherein the end surface of the absorbent core (502) is provided with no less than two grooves (7) extending along the length direction thereof, and wherein the absorbent layer (5) and the bottom layer (6) are connected to each other. A first adhesive layer (8) is provided between the two sides of the absorbent layer (5) in the width direction, leak-proof edges (9) are provided, a first side elastic band (903) is bonded between the bottom end of the leak-proof edge (9) close to the absorbent layer (5) and the bottom layer (6), a second side elastic band (904) is bonded between the side of the leak-proof edge (9) away from the absorbent layer (5) and the bottom layer (6), and a third side elastic band (905) is clamped at the top end of the leak-proof edge (9).

2. The absorbent article with a longitudinally slotted wrapping core according to claim 1, characterized in that: Both ends of the groove (7) extend to align with the ends of the absorbent core (502) in the length direction, and the groove (7) comprises a first groove (701) arranged on the upper end surface of the absorbent core (502) and a second groove (702) arranged on the lower end surface of the absorbent core (502).

3. The absorbent article with longitudinally slotted wrapping core according to claim 2, characterized in that: The number of the first grooves (701) is two, and they are respectively close to two sides of the absorbent core (502) in the width direction, and the extension length of the first adhesive layer (8) in the width direction does not exceed the first grooves (701).

4. The absorbent article with longitudinally slotted wrapping core according to claim 1, characterized in that: The leakproof partition (9) comprises a first leakproof partition (901) and a second leakproof partition (902) symmetrically arranged on both sides of the absorbent layer (5); the first leakproof partition (901) and the second leakproof partition (902) are both formed by folding a single layer of water-repellent non-woven fabric; the water-repellent non-woven fabric is sandwiched between the bottom layer (6) and the absorbent layer (5).

5. The absorbent article with a longitudinally slotted wrapping core according to claim 1, characterized in that: The covering layer (501) extends along the upper end surface of the absorbent core (502) towards both sides of the absorbent core (502) and then folds over to cover the side edges of the absorbent core (502), and the end of the covering layer (501) extends between the absorbent core (502) and the bottom layer (6).

6. The absorbent article with longitudinally slotted wrapping core according to claim 1, characterized in that: Both sides of the surface layer (4) extend into the gap between the absorption layer (5) and the leakproof partition edge (9), a second adhesive layer (401) is provided between the side edges of the surface layer (4) and the absorption layer (5), and a third adhesive layer (402) is provided between the surface layer (4) and the leakproof partition edge (9).

7. The absorbent article with a longitudinally slotted wrapping core according to claim 1, characterized in that: The waist structure (2) comprises a front waist (201) and a rear waist (202) formed by integrally extending the surface layer (4) and the bottom layer (6); the width dimensions of the ends of the surface layer (4) and the bottom layer (6) are consistent, and the width dimension of the middle portion of the surface layer (4) is smaller than the width dimension of the middle portion of the bottom layer (6).