Baby paper diaper with composite core body

Abstract

The utility model discloses an infant paper diaper with a composite core body. The infant paper diaper comprises a surface film, the composite core body and a bottom film which are stacked from top to bottom. The surface film, the composite core body and the bottom film are bonded and fixed through a hot melt adhesive; the composite core body comprises absorbent paper, and a fluff pulp layer and a super absorbent resin layer which are coated in the absorbent paper; and the absorbent paper layer is provided with a super absorbent resin material layer. According to the utility model, the fluff pulp layer and the super absorbent resin layer are wrapped in the composite paper provided with the super absorbent resin material layer to form the composite core layer, so that urine and loose stool can be absorbed, diffused and stored in the composite core body more quickly, and the surface of a paper diaper product is kept dry and comfortable; and a large-volume composite core body can be easily used for storing liquid, so that urine leakage is avoided.

Description

Technical Field

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

[0002] Baby diapers are absorbent wearable products primarily made of fluff pulp and a polymer absorbent material, designed to absorb urine and loose stools. As essential daily necessities for infants, the comfort and dryness of baby diapers are crucial to their health. Traditional baby diaper designs primarily focus on the fluff pulp and polymer absorbent material, with little consideration given to other design elements. Therefore, we are considering the rapid absorption and diffusion of diapers to further improve them. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model provides a baby diaper with a composite core.

[0004] The technical solution adopted by an embodiment of the present invention to solve the technical problem is: a baby diaper with a composite core, comprising a surface film, a composite core and a bottom film stacked from top to bottom; the surface film, the composite core and the bottom film are fixed by hot melt adhesive;

[0005] The composite core comprises absorbent paper, and a fluff pulp layer and a high water absorbent resin layer wrapped in the absorbent paper; the absorbent paper layer is provided with a high water absorbent resin material layer.

[0006] Optionally, the absorbent paper is provided with two layers, and the fluff pulp layer and the super absorbent resin layer are coated between the two layers of the absorbent paper.

[0007] Optionally, the absorbent paper is provided with a layer, and the layer of absorbent paper is wrapped around the outside of the fluff pulp layer and the super absorbent resin layer.

[0008] Optionally, the composite core is formed with a plurality of cutting grooves by cutting; the plurality of cutting grooves are arranged at intervals along the longitudinal direction and / or width direction of the composite core.

[0009] Optionally, the cutting groove is divided into a long strip-shaped fracture groove and a hole-shaped countersink groove; the fracture groove extends along the longitudinal direction of the composite core and is evenly spaced in the middle of the composite core; the countersink groove is arranged on both sides of the width of the composite core, located on opposite sides of the fracture groove.

[0010] Optionally, three-dimensional guards are provided on both sides of the width of the composite core.

[0011] Optionally, elastic rubber bands are provided on both sides of the width of the base film, and the elastic rubber bands are located on the outside of the composite core in the width direction.

[0012] Optionally, the bottom film is provided with a bottom skin-friendly layer, and the bottom skin-friendly layer is hot air non-woven fabric and / or spunbond non-woven fabric.

[0013] Optionally, the surface film is a hot air non-woven fabric and / or a spunbond non-woven fabric, and the bottom film is a PE breathable film.

[0014] Optionally, a front waist tape is provided on the front side of the base film, and rear waist tapes are provided at both ends of the rear side; the rear waist tape can be adhered to the front waist tape.

[0015] The beneficial effects of the present invention are as follows: Super absorbent polymer (SAP) is made of starch and acrylate as main raw materials, and has outstanding water absorption and water storage properties. The fluff pulp can improve the softness and skin-friendliness of the diaper. In addition, a super absorbent resin material layer is provided in combination with the absorbent paper, which can further increase the absorption and water storage properties, making the product drier and more comfortable. The present invention forms a composite core layer by wrapping the fluff pulp layer and the super absorbent resin layer in the composite paper provided with the super absorbent resin material layer, so that urine and loose stools are absorbed and diffused more quickly and stored in the interior of the composite core, so that the surface of the diaper product remains dry and comfortable, and it is also easy to use the large-volume composite core to store liquid and avoid urine leakage.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic structural diagram of the baby diaper of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the composite core;

[0020] Figure 3 for Figure 2 Cross-sectional view of the composite core.

[0021] Description of main component symbols:

[0022] 10. Surface film; 20. Composite core; 21. Absorbent paper; 22. Fluff pulp layer; 23. Super absorbent resin layer; 30. Base film; 31. Front waist tape; 32. Back waist tape; 40. Cutting groove; 41. Fracture groove; 42. Countersunk groove; 50. Three-dimensional protective guard; 60. Elastic rubber band. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0027] Example

[0028] Reference Figures 1 to 3 The present invention provides a baby diaper with a composite core 20, comprising a surface film 10, a composite core 20 and a bottom film 30 stacked from top to bottom; the surface film 10, the composite core 20 and the bottom film 30 are fixed by hot melt adhesive;

[0029] The composite core 20 includes absorbent paper 21, and a fluff pulp layer 22 and a super absorbent resin layer 23 wrapped in the absorbent paper 21; the absorbent paper 21 is provided with a super absorbent resin material layer.

[0030] In this invention, the super absorbent polymer (SAP) is made primarily from starch and acrylate, and possesses outstanding water absorption and retention properties. The fluff pulp enhances the softness and skin-friendliness of the diaper. Furthermore, a super absorbent resin layer is incorporated into the absorbent paper 21, further enhancing absorption and water retention, making the product even drier and more comfortable. In this invention, a composite core layer is formed by encapsulating a fluff pulp layer 22 and a super absorbent resin layer 23 within the composite paper containing the super absorbent resin layer. This allows urine and loose stools to be more rapidly absorbed and diffused into the composite core 20, maintaining a dry and comfortable surface. The large composite core 20 also facilitates the use of liquid storage, preventing urine leakage.

[0031] In this embodiment, the absorbent paper 21 is provided with two layers, and the fluff pulp layer 22 and the super absorbent resin layer 23 are wrapped between the two layers of absorbent paper 21 .

[0032] In other embodiments, a layer of absorbent paper 21 is provided, and the layer of absorbent paper 21 is wrapped around the outside of the fluff pulp layer 22 and the super absorbent resin layer 23 .

[0033] In this embodiment, the composite core 20 is cut to form a plurality of cutout grooves 40, which are spaced apart longitudinally and / or widthwise. These cutout grooves 40 increase the surface area of ​​the composite core 20, increasing the effective contact area between liquid and the composite core 20. This allows urine and loose stools to be more quickly absorbed and diffused into the composite core 20, keeping the surface of the diaper dry and comfortable. Furthermore, the large composite core 20 is easily accessible for storing liquid, preventing urine leakage.

[0034] Specifically, the cutting grooves 40 are divided into elongated fracture grooves 41 and hole-shaped countersunk grooves 42. The fracture grooves 41 extend longitudinally along the composite core 20 and are evenly spaced in the middle of the composite core 20. The countersunk grooves 42 are arranged on both sides of the width of the composite core 20, on opposite sides of the fracture grooves 41. The fracture grooves 41 extend longitudinally along the composite core 20, facilitating symmetrical deformation of the composite core 20 on both sides and bending deformation along the longitudinal direction. The countersunk grooves 42 facilitate drilling and additive molding, while effectively expanding the surface area of ​​the composite core 20, thereby increasing the effective contact area between the liquid and the composite core 20, allowing urine and loose stools to be absorbed and diffused into the interior of the composite core 20 more quickly.

[0035] In this embodiment, three-dimensional guardrails 50 are provided on both sides of the width of the composite core 20. The three-dimensional guardrails 50 are water-repellent and can effectively prevent the contents of the composite core 20 from flowing out toward both sides of the width of the base film 30.

[0036] In this embodiment, elastic bands 60 are provided on both sides of the width of the base film 30, and are located on the outside of the width direction of the composite core 20. The elastic bands 60 allow the composite core 20 and the front film to be tightened along the middle of the base film 30 toward the front and rear ends, allowing the diaper to be securely worn on the lower body of the infant, effectively ensuring the leak-proof effect of the diaper.

[0037] Preferably, the base film 30 is provided with a bottom skin-friendly layer, which is made of air-through nonwoven fabric and / or spunbond nonwoven fabric. Optionally, the surface film 10 is made of air-through nonwoven fabric and / or spunbond nonwoven fabric, and the base film 30 is a PE breathable film. Air-through nonwoven fabric and spunbond nonwoven fabric have better skin-friendly properties, while the PE breathable film has better load-bearing and deformation capacity while maintaining breathability.

[0038] In this embodiment, the front side of the base film 30 is provided with a front waist tape 31, and the rear ends of the base film 30 are provided with rear waist tapes 32. The rear waist tapes 32 can be bonded to the front waist tapes 31. By bonding the rear waist tapes 32 to the front waist tapes 31, the base film 30 can be wrapped around the lower part of the baby's body, forming a closed diaper.

[0039] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A baby diaper with a composite core, characterized in that: The invention comprises a surface film (10), a composite core (20) and a bottom film (30) stacked from top to bottom; the surface film (10), the composite core (20) and the bottom film (30) are fixed by hot melt adhesive; The composite core (20) comprises absorbent paper (21), and a fluff pulp layer (22) and a high water absorbent resin layer (23) wrapped in the absorbent paper (21); the absorbent paper (21) layer is provided with a high water absorbent resin material layer.

2. The baby diaper with a composite core according to claim 1, characterized in that: The absorbent paper (21) is provided with two layers, and the fluff pulp layer (22) and the high water-absorbent resin layer (23) are coated between the two layers of the absorbent paper (21).

3. The baby diaper with a composite core according to claim 1, characterized in that: The absorbent paper (21) is provided with a layer, and the layer of absorbent paper (21) is wound and coated on the outside of the fluff pulp layer (22) and the super absorbent resin layer (23).

4. The baby diaper with a composite core according to claim 1, characterized in that: The composite core (20) is formed with a plurality of cutting grooves (40) by cutting; the plurality of cutting grooves (40) are arranged at intervals along the longitudinal direction and / or the width direction of the composite core (20).

5. The baby diaper with a composite core according to claim 4, characterized in that: The cutting groove (40) is divided into a long strip-shaped fracture groove (41) and a hole-shaped countersunk groove (42); the fracture groove (41) extends along the longitudinal direction of the composite core (20) and is evenly spaced in the middle of the composite core (20); the countersunk groove (42) is arranged on both sides of the width of the composite core (20) and is located on opposite sides of the fracture groove (41).

6. The baby diaper with a composite core according to claim 1, characterized in that: Three-dimensional guards (50) are provided on both sides of the width of the composite core (20).

7. The baby diaper with a composite core according to claim 1, characterized in that: Elastic rubber bands (60) are provided on both sides of the width of the base film (30), and the elastic rubber bands (60) are located on the outside of the composite core (20) in the width direction.

8. The baby diaper with a composite core according to claim 1, characterized in that: The bottom film (30) is provided with a bottom skin-friendly layer, and the bottom skin-friendly layer is a hot air non-woven fabric and / or a spunbond non-woven fabric.

9. The baby diaper with a composite core according to claim 1, characterized in that: The surface film (10) is a hot air non-woven fabric and / or a spunbond non-woven fabric, and the bottom film (30) is a PE breathable film.

10. The baby diaper with a composite core according to claim 1, characterized in that: The front side of the base film (30) is provided with a front waist patch (31), and the two ends of the rear side are provided with rear waist patches (32); the rear waist patch (32) can be bonded to the front waist patch (31).

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