Core body for multi-layer composite paper diaper

Abstract

The utility model discloses a core body for a multi-layer composite paper diaper, which belongs to the technical field of paper diaper core bodies and comprises an upper hydrophilic non-woven fabric layer, a lower hydrophilic non-woven fabric layer and a composite layer positioned between the upper hydrophilic non-woven fabric layer and the lower hydrophilic non-woven fabric layer, and the composite layer is made of soft plastic or soft PVC (polyvinyl chloride). The composite layer at least comprises a bottom leather layer fixedly bonded with the lower hydrophilic non-woven fabric layer, bent leather layers symmetrically connected to the two sides of the bottom leather layer and a top leather layer connected to the two bent leather layers respectively, a super absorbent resin layer is fixedly bonded to the upper portion of the bottom leather layer, and two inner absorption layers are symmetrically connected to the two sides of the super absorbent resin layer. Wherein the two inner absorption layers are located below the two top skin layers respectively, and the upper portion of the super absorbent resin layer is fixedly bonded with the upper hydrophilic non-woven fabric layer. According to the core body for the multi-layer composite paper diaper, diffused urine cannot be in contact with the skin of a baby, so that the discomfort of the skin of the baby is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaper cores, and particularly relates to a core for a multi-layer composite diaper. Background Art

[0002] Diapers are commonly used daily necessities for babies and are the general term for products such as disposable diapers, pull-on diapers, and training pants. A dry diaper can keep a baby sleeping soundly throughout the night. Superabsorbent polymers (abbreviated as high molecular weight SAP), made mainly from starch and acrylate, are excellent materials for making baby diapers.

[0003] In the process of implementing the present utility model, the inventor found that there are at least the following problems in this technology: the core of the existing diaper usually only has two upper and lower hydrophilic non-woven fabric layers and a middle superabsorbent resin layer. Although it has the basic effect of absorbing urine, it cannot isolate the absorbed urine. Therefore, the urine will come into full contact with the baby's buttocks skin, causing discomfort.

[0004] Therefore, we propose a core for a multi-layer composite diaper to solve the above problems. Content of the Utility Model

[0005] The main purpose of the present utility model is to provide a core for a multi-layer composite diaper, so that the diffused urine will not come into contact with the baby's skin, thereby reducing the discomfort caused to the baby's skin and effectively solving the problems in the background art.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A core for a multi-layer composite diaper includes an upper hydrophilic non-woven fabric layer, a lower hydrophilic non-woven fabric layer, and a composite layer located between the upper hydrophilic non-woven fabric layer and the lower hydrophilic non-woven fabric layer. The composite layer is made of soft plastic or soft PVC. The composite layer at least includes a bottom skin layer adhesively fixed to the lower hydrophilic non-woven fabric layer, bent skin layers symmetrically connected to both sides of the bottom skin layer, and top skin layers respectively connected to the two bent skin layers. A superabsorbent resin layer is adhesively fixed above the bottom skin layer, and two inner absorption layers are symmetrically connected to both sides of the superabsorbent resin layer. The two inner absorption layers are respectively located below the two top skin layers, and the upper part of the superabsorbent resin layer is adhesively fixed to the upper hydrophilic non-woven fabric layer;

[0008] On both sides of the top of the upper hydrophilic non-woven fabric layer, two groups of strip-shaped superabsorbent resin skins are adhesively fixed respectively. Each group of strip-shaped superabsorbent resin skins is provided with a plurality of equally spaced along the horizontal direction, and a soft pad strip adhesively fixed to the upper hydrophilic non-woven fabric layer is provided between every two adjacent strip-shaped superabsorbent resin skins.

[0009] As a preferred embodiment, absorption grooves are formed between the bottom skin layer and the two top skin layers, and the two inner absorption layers extend into the two absorption grooves, respectively; so that the two inner absorption layers can be hidden in the two absorption grooves. Since the material of the composite layer is plastic or PVC, it can block urine, so that the urine absorbed by the inner absorption layer will not pass through the top skin layer and affect the baby's skin.

[0010] As a preferred embodiment, the bent skin layer is designed to be C-shaped. After the inner absorbent layer is filled in the absorption groove, one side of the inner absorbent layer contacts the bent skin layer and is bonded and fixed to the bent skin layer; so that the opposite sides of the two inner absorbent layers are respectively fixed by the two bent skin layers, thereby avoiding the displacement of the two inner absorbent layers and the high water-absorbent resin layer therebetween.

[0011] As a preferred embodiment, outer arc expansion skins are fixedly bonded to both sides of the top of the upper hydrophilic non-woven fabric layer; the outer arc expansion skins can be made of soft rubber or soft silicone, etc., for contacting the outer edge of the baby's buttocks.

[0012] As a preferred embodiment, arc-shaped fitting inner walls are formed on both outer arc extension skins; the morphological features of the arc-shaped fitting inner walls refer to the attached drawings, which can better fit the baby's buttocks, thereby greatly reducing the probability of urine leakage.

[0013] As a preferred embodiment, the height of the cushion strip is greater than the height of the strip-shaped highly absorbent resin skin, making it easier for the cushion strip to contact the baby's buttocks and absorb urine that diffuses toward the edge. Multiple strip-shaped highly absorbent resin skins can block urine and prevent urine leakage.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] The core body for the multi-layer composite diaper is provided with a super absorbent resin layer and inner absorbent layers on both sides of the super absorbent resin layer in the composite layer, so that the super absorbent resin layer can diffuse the urine toward the inner absorbent layers on both sides after absorbing urine, and the inner absorbent layers are blocked by the soft top skin layer, so that the diffused urine will not contact the baby's skin, thereby reducing the discomfort caused to the baby's skin;

[0016] With the core of the multi-layer composite diaper, when a baby urinates, the urine first contacts the upper hydrophilic non-woven fabric layer and penetrates into the highly absorbent resin layer, and then diffuses toward the inner absorbent layers on both sides and is absorbed in large quantities by the inner absorbent layers. Part of the urine diffused toward the edges will be absorbed by the two groups of strip-shaped highly absorbent resin skins on both sides, and the arc-shaped fitting inner wall can better fit the baby's buttocks, thereby minimizing urine leakage to the outside, so that the core of the multi-layer composite diaper has a better urine leakage prevention effect and reduces the probability of urine contacting the baby's skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 The enlarged view of the structure at position A in it;

[0019] Figure 3 For the present utility model Figure 1 The enlarged view of the structure at position B in it.

[0020] In the figure: 1. Upper hydrophilic non-woven fabric layer; 2. Lower hydrophilic non-woven fabric layer; 3. Composite layer; 301. Bottom skin layer; 302. Bent skin layer; 303. Top skin layer; 304. Absorption groove; 4. Superabsorbent resin layer; 5. Inner absorption layer; 6. Outer arc expansion skin; 601. Arc-shaped fitting inner wall; 7. Soft pad strip; 8. Strip-shaped superabsorbent resin skin. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Referring to Figures 1-3 , a core body for a multi-layer composite diaper, comprising an upper hydrophilic non-woven fabric layer 1, a lower hydrophilic non-woven fabric layer 2, and a composite layer 3 located between the upper hydrophilic non-woven fabric layer 1 and the lower hydrophilic non-woven fabric layer 2. The material of the composite layer 3 is soft plastic or soft PVC. The composite layer 3 at least includes a bottom skin layer 301 adhesively fixed to the lower hydrophilic non-woven fabric layer 2, bent skin layers 302 symmetrically connected to both sides of the bottom skin layer 301, and top skin layers 303 respectively connected to the two bent skin layers 302. A superabsorbent resin layer 4 is fixedly adhered above the bottom skin layer 301. The bent skin layer 302 is designed in a C shape. After the inner absorption layer 5 is filled in the absorption groove 304, one side of it contacts the bent skin layer 302 and is adhesively fixed to the bent skin layer 302, so that the opposite sides of the two inner absorption layers 5 are respectively fixed by the two bent skin layers 302, thereby avoiding phenomena such as displacement of the two inner absorption layers 5 and the superabsorbent resin layer 4 therebetween, and two inner absorption layers 5 are symmetrically connected to both sides of the superabsorbent resin layer 4;

[0023] It should be noted that absorption grooves 304 are respectively formed between the bottom skin layer 301 and the two top skin layers 303, and the two inner absorption layers 5 extend into the two absorption grooves 304, respectively, so that the two inner absorption layers 5 can be hidden in the two absorption grooves 304. Since the composite layer 3 is made of plastic or PVC, it can block urine, so that the urine absorbed by the inner absorption layer 5 will not pass through the top skin layer 303 and affect the baby's skin. The two inner absorption layers 5 are respectively located below the two top skin layers 303, and the upper part of the super absorbent resin layer 4 is bonded and fixed to the upper hydrophilic non-woven fabric layer 1, and the inner absorption layer 5 and the super absorbent resin layer 4 are made of the same material;

[0024] Two groups of strip-shaped high-absorbent resin skins 8 are fixedly bonded to both sides of the top of the upper hydrophilic non-woven fabric layer 1, wherein each group of strip-shaped high-absorbent resin skins 8 is arranged at equal intervals in the horizontal direction, and a soft pad strip 7 bonded and fixed to the upper hydrophilic non-woven fabric layer 1 is provided between every two adjacent strip-shaped high-absorbent resin skins 8. The height of the soft pad strip 7 is greater than the height of the strip-shaped high-absorbent resin skin 8, so that the soft pad strip 7 can more easily contact the baby's buttocks and absorb urine diffused to the edge. The multiple strip-shaped high-absorbent resin skins 8 can block urine and prevent urine leakage.

[0025] In addition, outer arc expansion skins 6 are fixedly bonded to both sides of the top of the upper hydrophilic non-woven fabric layer 1, wherein the material of the outer arc expansion skins 6 can be selected from soft rubber or soft silicone, etc., which is used to contact the outer edge of the baby's buttocks. Arc-shaped fitting inner walls 601 are formed on the two outer arc expansion skins 6. The morphological characteristics of the arc-shaped fitting inner walls 601 refer to the attached drawings, which can better fit the baby's buttocks, thereby greatly reducing the probability of urine leakage.

[0026] The core of the multi-layer composite diaper: when in use, the side where the upper hydrophilic non-woven fabric layer 1 is located is in contact with the baby's buttocks (the fixed structure on the outside of the core of the multi-layer composite diaper is disclosed in the technical solution, but it is a prior art). When the baby urinates, the urine will first contact the upper hydrophilic non-woven fabric layer 1 and penetrate into the highly absorbent resin layer 4, and then diffuse toward the inner absorbent layer 5 on both sides and be absorbed by the inner absorbent layer 5 in large quantities. Part of the urine diffused toward the edge will be absorbed by the two groups of strip-shaped highly absorbent resin skins 8 on both sides, and the arc-shaped fitting inner wall 601 can better fit the baby's buttocks, so that the outer arc expansion skin 6 is used to avoid urine leakage to the outside as much as possible, so that the core of the multi-layer composite diaper has a better anti-leakage effect and can reduce the probability of urine contacting the baby's skin.

[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A core body for a multi-layer composite diaper, comprising an upper hydrophilic non-woven fabric layer (1), a lower hydrophilic non-woven fabric layer (2), and a composite layer (3) located between the upper hydrophilic non-woven fabric layer (1) and the lower hydrophilic non-woven fabric layer (2), characterized in that, The composite layer (3) at least includes a bottom skin layer (301) adhesively fixed to the lower hydrophilic non-woven fabric layer (2), bent skin layers (302) symmetrically connected to both sides of the bottom skin layer (301), and top skin layers (303) respectively connected to the two bent skin layers (302). A superabsorbent resin layer (4) is fixedly adhesively attached above the bottom skin layer (301), and two inner absorbent layers (5) are symmetrically connected to both sides of the superabsorbent resin layer (4), wherein the two inner absorbent layers (5) are respectively located below the two top skin layers (303), and the upper part of the superabsorbent resin layer (4) is adhesively fixed to the upper hydrophilic non-woven fabric layer (1); On both sides of the top of the upper hydrophilic non-woven fabric layer (1), two groups of strip-shaped superabsorbent resin skins (8) are respectively fixedly adhesively attached, wherein each group of strip-shaped superabsorbent resin skins (8) is provided with a plurality of them at equal intervals in the horizontal direction, and a soft pad strip (7) adhesively fixed to the upper hydrophilic non-woven fabric layer (1) is arranged between every two adjacent strip-shaped superabsorbent resin skins (8).

2. The core body for a multi-layer composite diaper according to claim 1, wherein, Absorption grooves (304) are respectively formed between the bottom skin layer (301) and the two top skin layers (303), and the two inner absorbent layers (5) respectively extend into the two absorption grooves (304).

3. The core body for a multi-layer composite diaper according to claim 1, characterized in that, The bent skin layer (302) is designed in a C shape. After the inner absorbent layer (5) is filled in the absorption groove (304), one side of it contacts the bent skin layer (302) and is adhesively fixed to the bent skin layer (302).

4. The core for a multi-layer composite diaper according to claim 1, characterized in that, Outer arc extension skins (6) are respectively fixedly adhesively attached to both sides of the top of the upper hydrophilic non-woven fabric layer (1).

5. The core for a multi-layer composite diaper according to claim 4, characterized in that, Arc-shaped fitting inner walls (601) are formed on both of the two outer arc extension skins (6).

6. The core for a multi-layer composite disposable diaper according to claim 1, characterized in that, The height of the soft pad strip (7) is greater than the height of the strip-shaped superabsorbent resin skin (8).

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