Paper diaper with multi-layer suspension core body structure

Abstract

The utility model relates to the technical field of absorption products, in particular to a paper diaper with a multilayer suspension core structure, which comprises an absorption body consisting of a surface layer, a flow guide layer and an absorption core which are sequentially arranged, and leakage-proof partition edges arranged on two sides of the absorption body in the width direction, a secondary layer, a leakage-proof bottom film and a bottom layer non-woven fabric are sequentially arranged below the absorption body, and the secondary layer and the leakage-proof bottom film which are sequentially arranged divide an unbonded area below the absorption body into a plurality of layers of hollow-out areas; the first hollowed-out area, the second hollowed-out area and the third hollowed-out area are arranged on the multi-layer suspension core body structure, have a liquid storage function in the paper diaper and are communicated with the liquid permeating holes, so that urine can permeate downwards layer by layer and is distributed on the first secondary layer and the second secondary layer of the secondary layer through the liquid permeating holes; therefore, the liquid absorption pressure of the absorption core body can be effectively reduced, and the overall absorption performance of the paper diaper is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to absorbent article technical field, specifically disclose a paper diaper with multilayer suspension core structure. BACKGROUND

[0002] In the design of paper diapers, the suspension core structure is an internal structure aimed at improving urine absorption efficiency and preventing leakage. Traditional paper diapers usually fix the absorption core directly on the backing layer or main body, while the suspension core structure suspends the core inside the paper diaper, allowing it to better contact and absorb urine, which shows significant advantages in improving absorption performance and reducing leakage.

[0003] Based on the above situation, in the prior art, patent number CN206198165U discloses a kind of suspension core paper diaper, face layer is adopted to form the structure of wrapping type to core, so that the bottom surface of core is not completely directly with leakage-proof bottom film complex, to realize the "suspension" effect of core, further accelerate the absorption speed of urine, and reduce the risk of side leakage. At the same time, by setting flow guide groove on the core structure, further optimize the diffusion and transmission efficiency of urine in the core.

[0004] Although the above-mentioned suspension core paper diaper has made certain progress in absorption performance and leakage prevention, there are still deficiencies in absorption performance, specifically, although the existing suspension core paper diaper accelerates the absorption speed of urine by improving the core structure and adding a flow guide layer, in the face of a large amount of urine or continuous urination, the pressure of absorbing liquid is still concentrated on a single layer of core, so that the core may not effectively handle a large amount of urine, resulting in local saturation, increasing the risk of urine back permeation and side leakage. UTILITY MODEL CONTENT

[0005] In view of the technical defects in the background art, the utility model provides a paper diaper with a multilayer suspension core structure, which solves the above technical problems and meets the actual needs, and the specific technical solution is as follows:

[0006] A paper diaper with a multilayer suspension core structure, comprising an absorption body composed of a face layer, a flow guide layer and an absorption core arranged in sequence, and a leakage prevention barrier arranged on both sides of the absorption body in the width direction, the lower side of the absorption body is sequentially provided with a secondary layer, a leakage prevention bottom film and a bottom layer of non-woven fabric, the leakage prevention bottom film is compounded on the upper surface of the bottom layer of non-woven fabric, the two side edges of the lower surface of the absorption body are sequentially bonded with the two side edges of the secondary layer and the two side edges of the leakage prevention bottom film through hot melt adhesive, and the secondary layer and the leakage prevention bottom film sequentially arranged separate the unadhered area below the absorption body to form a plurality of hollow areas.

[0007] As a further technical scheme of the utility model, the secondary layer comprises a first secondary layer and a second secondary layer from top to bottom, a first hollow area is formed by the non-bonding area between the first secondary layer and the absorbing body, a third hollow area is formed by the non-bonding area between the first secondary layer and the second secondary layer, and a second hollow area is formed by the non-bonding area between the second secondary layer and the leakage-proof bottom film.

[0008] As a further technical scheme of the utility model, the first secondary layer and the second secondary layer are provided with a plurality of flow guide absorbing cotton strips arranged along the length direction of the absorbing body on the surface, and the flow guide absorbing cotton strips are equidistantly arranged along the width direction of the absorbing body.

[0009] As a further technical scheme of the utility model, a plurality of liquid-permeable holes are arranged equidistantly along the length direction of the absorbing body between the adjacent flow guide absorbing cotton strips.

[0010] As a further technical scheme of the utility model, the leakage-proof separation edge comprises an outer water-repellent non-woven fabric and a three-dimensional rubber band arranged inside the outer water-repellent non-woven fabric and located in the free end of the leakage-proof separation edge.

[0011] As a further technical scheme of the utility model, one end of the outer water-repellent non-woven fabric extends to the outside of the paper diaper and is bonded to the edge of one side of the bottom non-woven fabric, the other end of the inner side of the outer water-repellent non-woven fabric is bonded to the edge of one side of the leakage-proof bottom film, and a leg rubber band is arranged between the one end of the outer side of the outer water-repellent non-woven fabric and the leakage-proof bottom film.

[0012] As a further technical scheme of the utility model, the flow guide layer is arranged on the upper surface of the absorbing core body, the surface layer covers the flow guide layer and the absorbing core body, and the left and right ends of the surface layer are respectively and symmetrically arranged on the lower surface of the absorbing core body.

[0013] The utility model has the beneficial effect that:

[0014] The first hollow area, the second hollow area and the third hollow area arranged on the multi-layer floating core body structure have the liquid storage function in the paper diaper, are communicated with the liquid-permeable holes, and make the urine infiltrate layer by layer and be distributed on the first secondary layer and the second secondary layer of the secondary layer through the liquid-permeable holes and be absorbed by the flow guide absorbing cotton strips, so that the liquid absorption pressure of the absorbing core body is effectively reduced and the overall absorption performance of the paper diaper is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the internal structure schematic view of the paper diaper of the utility model.

[0016] Figure 2 It is the structure schematic view of the secondary layer of the paper diaper of the utility model.

[0017] Wherein:

[0018] 1-absorbent body; 11-surface layer; 12-flow guide layer; 13-absorbent core;

[0019] 2-leakage barrier; 21-outer layer of water-repellent non-woven fabric; 22-three-dimensional rubber band

[0020] 3-secondary layer; 31-first secondary layer; 32-second secondary layer; 33-flow guide absorbent cotton; 34-liquid-permeable hole;

[0021] 4-first hollowed-out area; 5-second hollowed-out area; 6-third hollowed-out area;

[0022] 7-leakage-proof bottom film; 71-leg rubber band;

[0023] 8-bottom layer of non-woven fabric. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described below in conjunction with the accompanying drawings and related embodiments. The embodiments of the present application are not limited to the following embodiments, and the present application relates to related necessary components in the technical field, which should be regarded as known technology in the technical field and can be known and mastered by the skilled in the art.

[0025] In combination with Figures 1 to 2 As shown in the figure (the dashed part in the figure represents the partially bonded area inside the diaper), a diaper with a multi-layer suspended core structure includes an absorbent body 1 composed of a surface layer 11, a flow guide layer 12, and an absorbent core 13 arranged in sequence, and a leakage barrier 2 arranged on both sides of the absorbent body 1 in the width direction. The lower part of the absorbent body 1 is sequentially provided with a secondary layer 3, a leakage-proof bottom film 7, and a bottom layer of non-woven fabric 8. The leakage-proof bottom film 7 is compounded on the upper surface of the bottom layer of non-woven fabric 8. The two side edges of the lower surface of the absorbent body 1 are sequentially bonded to the two side edges of the secondary layer 3 and the two side edges of the leakage-proof bottom film 7 by hot melt adhesive. The sequentially arranged secondary layer 3 and leakage-proof bottom film 7 separate the un-bonded area below the absorbent body 1 to form multiple hollowed-out areas.

[0026] Further, in the above structure, the flow guide layer 12 is arranged on the upper surface of the absorbent core 13, the surface layer 11 covers the flow guide layer 12 and the absorbent core 13, and the left and right ends of the surface layer 11 are symmetrically arranged on the lower surface of the absorbent core 13.

[0027] The utility model discloses an absorbent body 1 is by surface layer 11, diversion layer 12 and absorbent core 13 constitutes, is the main absorption part of paper diaper. Surface layer 11 directly contacts baby skin, provides comfortable feeling;Diversion layer 12 can quickly guide urine to flow to absorbent core 13;Absorbent core 13 is responsible for absorbing and storing urine, and the leakage prevention side edge 2 is arranged at the both sides of the width direction of absorbent body 1, effectively prevents urine from leaking from the side, enhances the leakage prevention performance of paper diaper.

[0028] The utility model discloses a secondary layer 3 is located below absorbent body 1, is by first secondary layer 31 and second secondary layer 32 constitute, through with the heat -adhesive bonding of the both sides edge position of absorbent body 1 lower surface, the hollow region of not bonding is formed between secondary layer 3 and absorbent body 1, the hollow region of above-mentioned includes first hollow area 4, second hollow area 5 and third hollow area 6, these areas have the liquid storage function in paper diaper, can hold more urine, thereby reduce the liquid absorption pressure of absorbent core 13.

[0029] First secondary layer 31 and second secondary layer 32 surface are equipped with diversion absorption cotton strip 33, they can absorb and disperse urine, improve the absorption efficiency of urine, and the adjacent diversion absorption cotton strip 33 between is equipped with liquid-permeable hole 34, these holes allow urine to flow freely between layers, further promote the uniform distribution and absorption of urine.

[0030] As one of the preferred embodiments of the utility model, Figure 1 And Figure 2 As shown, the secondary layer 3 includes first secondary layer 31 and second secondary layer 32 in turn from top to bottom, the non-bonding area between the first secondary layer 31 and the absorbent body 1 encloses to form the first hollow area 4, the non-bonding area between the first secondary layer 31 and the second secondary layer 32 encloses to form the third hollow area 6, and the non-bonding area between the second secondary layer 32 and the leakage prevention bottom film 7 encloses to form the second hollow area 5.

[0031] Further, in the above structure, the first secondary layer 31 and the second secondary layer 32 are each provided with a plurality of diversion absorption cotton strips 33 extending along the length direction of the absorbent body 1, and the diversion absorption cotton strips 33 are equidistantly arranged along the width direction of the absorbent body 1.

[0032] Further, in the above structure, the adjacent diversion absorption cotton strips 33 are provided with a plurality of liquid-permeable holes 34 equidistantly arranged along the length direction of the absorbent body 1.

[0033] In terms of absorption principle, this invention utilizes the highly absorbent material inside the absorbent core 13 to quickly absorb and lock in urine, preventing backflow and ensuring the diaper's dryness. The first hollow area 4, the second hollow area 5, and the third hollow area 6 together form a multi-layer liquid storage structure, increasing the diaper's liquid storage capacity and extending its usage time. The diversion layer 12 and the diversion absorbent tampons 33 can quickly guide and disperse urine, reducing the liquid absorption pressure on the absorbent core 13 and improving absorption efficiency. The permeable holes 34 allow urine to flow freely between layers, promoting uniform urine distribution and further enhancing the diaper's absorbency.

[0034] When urine comes into contact with the surface layer 11 of the diaper, it is first quickly guided to the absorbent core 13 by the diversion layer 12. The highly absorbent material (such as SAP particles) inside the absorbent core 13 begins to absorb the urine and lock it inside the core to prevent backflow. Some of the urine is completely absorbed in the absorbent core 13, while another part of the urine may continue to seep down, through the bottom layer of the absorbent core 13, and into the area of ​​the secondary layer 3.

[0035] Because the two side edges of the lower surface of the absorbent body 1 are bonded to the secondary layer 3 and the leak-proof bottom film 7 with hot melt adhesive, unbonded perforated areas (first perforated area 4, second perforated area 5, and third perforated area 6) are formed. These perforated areas provide additional storage space for urine. After urine enters the first perforated area 4, it can further seep down to the third perforated area 6 and the second perforated area 5. These areas together constitute a multi-layer liquid storage structure. In the secondary layer 3, the surfaces of the first layer 31 and the second layer 32 are provided with absorbent strips 33. These absorbent strips 33 can absorb and disperse urine, making it more evenly distributed in the secondary layer 3. There are liquid permeation holes 34 between adjacent absorbent strips 33. These holes allow urine to flow freely between the layers. The presence of liquid permeation holes 34 promotes the even distribution of urine between the first layer 31 and the second layer 32, further improving the absorbency of the diaper.

[0036] As one of the preferred embodiments of this utility model, such as Figure 1 As shown, the leak-proof partition 2 includes an outer layer of water-repellent nonwoven fabric 21 and a three-dimensional elastic band 22 sandwiched inside the outer layer of water-repellent nonwoven fabric 21 and located at the free end of the leak-proof partition 2.

[0037] Furthermore, in the above structure, one end of the outer water-repellent nonwoven fabric 21 extends outward to the outside of the diaper and is bonded to one edge of the bottom nonwoven fabric 8, the other end of the inner side of the outer water-repellent nonwoven fabric 21 is bonded to one edge of the leak-proof bottom film 7, and a leg elastic band 71 is provided between one end of the outer water-repellent nonwoven fabric 21 and the leak-proof bottom film 7.

[0038] The outer layer water-repellent non-woven fabric 21 as the main outer layer material of the leakage-proof side barrier 2 has good water-repellent performance, thereby preventing urine from leaking from the side edge of the diaper, and the three-dimensional elastic rubber 22 is clamped inside the outer layer water-repellent non-woven fabric 21 and located in the free end of the leakage-proof side barrier 2, so that the leakage-proof side barrier 2 forms a certain elasticity on the side edge of the diaper and can closely fit the leg contour of the baby, thereby the leakage-proof side barrier 2 can stretch and contract along with the movement of the leg when the diaper is worn, always maintaining a close fitting state and effectively preventing side leakage of urine.

[0039] One end of the outer layer water-repellent non-woven fabric 21 extends to the outside of the diaper and is bonded with the side edge of the bottom layer non-woven fabric 8, which not only enhances the connection strength between the leakage-proof side barrier 2 and the absorption body 1, but also ensures the stability of the leakage-proof side barrier 2 on the diaper. At the same time, the other end (inside) of the outer layer water-repellent non-woven fabric 21 is bonded with the side edge of the leakage-proof bottom film 7, further consolidating the structural stability of the leakage-proof side barrier 2 and making it not easy to fall off or shift during use.

[0040] A leg elastic rubber 71 is further arranged between one end of the outer layer water-repellent non-woven fabric 21 and the leakage-proof bottom film 7, which further enhances the fitting degree and leakage-proof effect of the diaper in the leg area. When the diaper is worn on the baby, the leg elastic rubber 71 can closely fit the leg of the baby and form an effective leakage-proof barrier, reducing the risk of urine leakage from the leg area.

[0041] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A paper diaper having a multi-layered suspension core structure, comprising an absorption body (1) composed of a surface layer (11), a flow guide layer (12), and an absorption core (13) arranged in sequence, and a leakage prevention barrier (2) arranged on both sides of the absorption body (1) in the width direction, characterized in that, The lower part of the absorption body (1) is sequentially provided with a secondary layer (3), a leakage-proof bottom film (7) and a bottom layer non-woven fabric (8), the leakage-proof bottom film (7) is compounded on the upper surface of the bottom layer non-woven fabric (8), the lower surface of the absorption body (1) is sequentially bonded with the two side edge positions of the secondary layer (3), the two side edge positions of the leakage-proof bottom film (7) through hot melt adhesive, and the sequentially provided secondary layer (3) and leakage-proof bottom film (7) separate the un-bonded area below the absorption body (1) to form multiple hollow areas.

2. The paper diaper with multi-layer floating core structure according to claim 1, characterized in that, The secondary layer (3) comprises a first secondary layer (31) and a second secondary layer (32) sequentially from top to bottom, the un-bonded area between the first secondary layer (31) and the absorption body (1) forms a first hollow area (4), the un-bonded area between the first secondary layer (31) and the second secondary layer (32) forms a third hollow area (6), and the un-bonded area between the second secondary layer (32) and the leakage-proof bottom film (7) forms a second hollow area (5).

3. The paper diaper with multi-layer floating core structure according to claim 2, characterized in that, The first secondary layer (31) and the second secondary layer (32) are both provided with a plurality of flow guide absorption cotton strips (33) extending along the length direction of the absorption body (1), and the flow guide absorption cotton strips (33) are equidistantly arranged along the width direction of the absorption body (1).

4. The paper diaper with multi-layer floating core structure according to claim 3, characterized in that, A plurality of liquid permeable holes (34) are arranged equidistantly along the length direction of the absorption body (1) between adjacent flow guide absorption cotton strips (33).

5. The paper diaper with multi-layer floating core structure according to claim 1, characterized in that, The leakage-proof side edge (2) comprises an outer layer water-repellent non-woven fabric (21) and a three-dimensional rubber band (22) arranged inside the outer layer water-repellent non-woven fabric (21) and located in the free end of the leakage-proof side edge (2).

6. The paper diaper having a multi-layered suspension core structure according to claim 5, wherein, One end of the outer layer water-repellent non-woven fabric (21) on the outer side extends to the outer side of the diaper and is bonded with the edge position of one side of the bottom layer non-woven fabric (8), the other end of the inner side of the outer layer water-repellent non-woven fabric (21) is bonded with the edge position of one side of the leakage-proof bottom film (7), and a leg rubber band (71) is arranged between the one end of the outer side of the outer layer water-repellent non-woven fabric (21) and the leakage-proof bottom film (7).

7. The paper diaper having a multi-layered suspension core structure according to claim 1, wherein, The flow guide layer (12) is arranged on the upper surface of the absorption core body (13), the surface layer (11) covers the flow guide layer (12) and the absorption core body (13), and the left and right ends of the surface layer (11) are symmetrically arranged on the lower surface of the absorption core body (13).

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