Paper diaper core structure

By adopting a multi-layer structure of the diaper core, combined with the design of wear-resistant layer, water barrier layer, anti-overflow layer, protective layer, reinforcement layer, water storage layer, water absorption layer and permeability layer, the problem of urine reverse osmosis and lack of protection on the outside after long-term use is solved, achieving better adsorption effect and higher protective performance.

CN222870805UActive Publication Date: 2025-05-16FUJIAN MEIKE PAPER IND CO LTD
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Patent Information

Application Number
CN202421994338.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-05-16
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

After a long time of use, the urine adsorbed inside is easily reverse-effected to the outside of the diapers, affecting the adsorption effect, and the outside lacks protection and is prone to rupture.

Method used

A multi-layer structure diaper core is adopted, including a wear-resistant layer, a water barrier, a spill-proof layer, a protective layer, a reinforcement layer, a water storage layer, a water absorption layer and a permeability layer. Through the combination and structural design of these layers, the adsorption effect and protective performance are improved.

Benefits of technology

Effectively prevent urine reflux, improve the adsorption effect and wear comfort of diapers, and enhance the strength and protective performance of the core by strengthening the design of the layer and protective layer to avoid rupture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper diapers, and discloses a paper diaper core structure which comprises a wear-resisting layer, a water-resisting layer, an anti-overflow layer, a protective layer, a reinforcing layer, a water storage layer, a water absorption layer and a permeable layer, the water-resisting layer is fixedly connected to the upper surface of the wear-resisting layer, and the anti-overflow layer is fixedly connected to the side face, away from the wear-resisting layer, of the water-resisting layer. The water absorption layer is filled with the high-water-absorption polymer and can absorb urine on the surface of the permeable layer in time, the wearing comfort of the paper diaper is improved, the permeable layer is formed by laying the polyurethane film, the surface of the permeable layer is provided with the permeation holes, and the water absorption layer can absorb urine on the surface of the permeable layer. The permeable layer is arranged on the paper diaper, urine can permeate into the paper diaper in time when making contact with the surface of the permeable layer, follow-up urine adsorption is facilitated, the water storage layer is filled with super absorbent resin, the high water absorption effect is achieved, the water storage amount of the urine can be increased, and urine seepage is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of diapers, in particular to a core structure of a diaper. Background Art

[0002] Diapers are disposable diapers for babies and young children, usually made of absorbent and breathable materials. They are designed to absorb urine and provide a comfortable wearing experience while keeping the baby's skin dry and clean. Diapers are easy and quick to use, avoiding the trouble of traditional cloth diapers that need to be washed and reused, so they are deeply favored by parents. Diapers usually come in different sizes and suitable age groups to meet the needs of different babies.

[0003] In the prior art, the core structure of diapers determines the absorbency of the diapers, which is directly related to the comfort level of babies when wearing diapers. After long-term use, urine absorbed inside the diaper core is prone to seep back to the outside of the diaper, which will affect the absorbency of the diaper. In addition, the outside of the diaper lacks protection and may rupture if squeezed or torn, affecting the use of the diaper. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art that urine absorbed inside the diaper core is easy to seep out to the outside of the diaper after long-term use, which affects the adsorption effect of the diaper, and the outside of the diaper lacks protection and may be broken if squeezed and torn, affecting the use of the diaper, and a diaper core structure is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A diaper core structure comprises a wear-resistant layer, a waterproof layer, an anti-overflow layer, a protective layer, a reinforcing layer, a water storage layer, a water absorption layer and a permeation layer, wherein the waterproof layer is fixedly connected to the upper surface of the wear-resistant layer, the anti-overflow layer is fixedly connected to a side of the waterproof layer away from the wear-resistant layer, the protective layer is fixedly connected to a side of the anti-overflow layer away from the waterproof layer, the reinforcing layer is fixedly connected to a side of the protective layer away from the anti-overflow layer, the water storage layer is fixedly connected to a side of the reinforcing layer away from the protective layer, the water absorption layer is fixedly connected to a side of the water storage layer away from the reinforcing layer, and the permeation layer is fixedly connected to a side of the water absorption layer away from the water storage layer.

[0007] Preferably, the wear-resistant layer is woven from nylon fibers, and the waterproof layer is paved with a PVC waterproof and breathable membrane.

[0008] Preferably, the anti-overflow layer is paved with a polyethylene film, and the protective layer is woven with polyester fibers.

[0009] Preferably, the reinforcement layer is woven from polyester fibers, and the water storage layer is filled with highly absorbent resin.

[0010] Preferably, the water-absorbing layer is filled with a highly water-absorbent polymer, and the permeable layer is paved with a polyurethane film.

[0011] Preferably, a plurality of penetration holes are provided on the surface of the penetration layer, and the protective layer is configured as a mesh structure.

[0012] Compared with the prior art, the utility model provides a diaper core structure, which has the following beneficial effects:

[0013] 1. The core structure of the diaper is formed by filling the water-absorbing layer with a highly absorbent polymer, which can timely absorb urine on the surface of the permeable layer and improve the wearing comfort of the diaper. The permeable layer is paved with a polyurethane film, and a plurality of permeable holes are provided on the surface of the permeable layer, so that urine can penetrate into the interior of the diaper in time when it contacts the surface of the permeable layer, which is convenient for the subsequent absorption of urine. The water storage layer is filled with a highly absorbent resin, which has a high water absorption effect and can increase the water storage capacity of urine to prevent urine leakage.

[0014] 2. The core structure of the diaper is made of polyester fiber through the reinforcement layer, which has high strength and can improve the supporting effect of the water storage layer and the water absorption layer, preventing the water storage layer and the water absorption layer from swelling after washing and rupture due to lack of protection, which affects the stability of adsorption. The protective layer is woven with polyester fiber, which can further improve the protection of the water storage layer and the water absorption layer. The protective layer is set to a mesh structure with a more flexible expansion effect.

[0015] 3. The core structure of the diaper is made of nylon fiber through the wear-resistant layer, which can improve the wear resistance of the bottom of the diaper, reduce wear, and prevent the fabric from being damaged and leaking to affect the urine adsorption effect. The waterproof layer is paved with PVC waterproof and breathable film, which can isolate the liquid and prevent the liquid from leaking from the bottom of the diaper. The anti-overflow layer is paved with polyethylene film, which can prevent the liquid from penetrating and overflowing to the outside of the water storage layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a diaper core structure proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0018] Figure 3 for Figure 1 Top view of the structure of the middle protective layer.

[0019] In the figure: 1 wear-resistant layer, 2 waterproof layer, 3 anti-overflow layer, 4 protective layer, 5 reinforcement layer, 6 water storage layer, 7 water absorption layer, 8 permeation layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A diaper core structure comprises a wear-resistant layer 1, a waterproof layer 2, an anti-overflow layer 3, a protective layer 4, a reinforcing layer 5, a water storage layer 6, a water absorption layer 7 and a permeation layer 8, wherein the waterproof layer 2 is fixedly connected to the upper surface of the wear-resistant layer 1, the anti-overflow layer 3 is fixedly connected to the side of the waterproof layer 2 away from the wear-resistant layer 1, the protective layer 4 is fixedly connected to the side of the anti-overflow layer 3 away from the waterproof layer 2, the reinforcing layer 5 is fixedly connected to the side of the protective layer 4 away from the anti-overflow layer 3, the water storage layer 6 is fixedly connected to the side of the reinforcing layer 5 away from the protective layer 4, the water absorption layer 7 is fixedly connected to the side of the water storage layer 6 away from the reinforcing layer 5, and the permeation layer 8 is fixedly connected to the side of the water absorption layer 7 away from the water storage layer 6.

[0022] The wear-resistant layer 1 is woven with nylon fibers, the waterproof layer 2 is paved with PVC waterproof and breathable membrane, the anti-overflow layer 3 is paved with polyethylene membrane, the protective layer 4 is woven with polyester fibers, the reinforcement layer 5 is woven with polyester fibers, the water storage layer 6 is filled with super absorbent resin, the water absorption layer 7 is filled with super absorbent polymer, the penetration layer 8 is paved with polyurethane film, a plurality of penetration holes are opened on the surface of the penetration layer 8, and the protective layer 4 is arranged as a mesh structure.

[0023] When in use, the water-absorbing layer 7 is filled with a highly absorbent polymer, which can timely absorb urine on the surface of the permeable layer 8, thereby improving the comfort of wearing the diaper. The permeable layer 8 is paved with a polyurethane film, and a plurality of permeable holes are provided on the surface of the permeable layer 8, so that urine can timely penetrate into the interior of the diaper when it contacts the surface of the permeable layer 8, thereby facilitating the subsequent absorption of urine. The water storage layer 6 is filled with a highly absorbent resin, which has a high water absorption effect and can increase the water storage capacity of urine. The reinforcing layer 5 is woven with polyester fibers and has a high strength, which can improve the support effect of the water storage layer 6 and the water-absorbing layer 7, thereby preventing the water storage layer from 6 and the water-absorbing layer 7 swell after washing and lack protection and rupture, which affects the stability of adsorption. The protective layer 4 is woven from polyester fibers to further improve the protection of the water storage layer 6 and the water-absorbing layer 7. The protective layer 4 is set to a mesh structure with a more flexible expansion effect. The wear-resistant layer 1 is woven from nylon fibers to improve the wear resistance of the bottom of the diaper, reduce wear, and prevent the fabric from being damaged and leaking, which affects the urine adsorption effect. The waterproof layer 2 is paved with PVC waterproof and breathable film, which can isolate the liquid and prevent the liquid from leaking from the bottom of the diaper. The anti-overflow layer 3 is paved with polyethylene film to prevent the liquid from penetrating and overflowing to the outside of the water storage layer 6.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A diaper core structure, comprising a wear-resistant layer (1), a water-proof layer (2), an anti-overflow layer (3), a protective layer (4), a reinforcing layer (5), a water storage layer (6), a water absorption layer (7) and a permeable layer (8), characterized in that: The waterproof layer (2) is fixedly connected to the upper surface of the wear-resistant layer (1); the anti-overflow layer (3) is fixedly connected to the side of the waterproof layer (2) facing away from the wear-resistant layer (1); the protective layer (4) is fixedly connected to the side of the anti-overflow layer (3) facing away from the waterproof layer (2); the reinforcing layer (5) is fixedly connected to the side of the protective layer (4) facing away from the anti-overflow layer (3); the water storage layer (6) is fixedly connected to the side of the reinforcing layer (5) facing away from the protective layer (4); the water absorption layer (7) is fixedly connected to the side of the water storage layer (6) facing away from the reinforcing layer (5); and the permeable layer (8) is fixedly connected to the side of the water absorption layer (7) facing away from the water storage layer (6).

2. A diaper core structure according to claim 1, characterized in that: The wear-resistant layer (1) is made of nylon fibers, and the waterproof layer (2) is made of PVC waterproof and breathable membrane.

3. A diaper core structure according to claim 1, characterized in that: The anti-overflow layer (3) is paved with a polyethylene film, and the protective layer (4) is woven with polyester fibers.

4. A diaper core structure according to claim 1, characterized in that: The reinforcing layer (5) is made of woven polyester fibers, and the water storage layer (6) is filled with highly absorbent resin.

5. The diaper core structure according to claim 1, characterized in that: The water-absorbing layer (7) is filled with a highly water-absorbent polymer, and the permeable layer (8) is paved with a polyurethane film.

6. A diaper core structure according to claim 1, characterized in that: A plurality of penetration holes are provided on the surface of the penetration layer (8), and the protective layer (4) is configured as a mesh structure.