A water-absorbing paper core structure for accelerating the penetration speed

Abstract

The utility model provides a kind of water-absorbing paper core structure of accelerating penetration speed, including contact flow guide layer, water-absorbing layer, water storage layer, bottom film, contact flow guide layer, water-absorbing layer and water storage layer are stacked in bottom film from top to bottom;Contact flow guide layer includes flow guide groove and raised contact part, flow guide groove is formed by rolling on contact flow guide layer, and flow guide groove is longitudinally and transversely distributed on contact flow guide layer, and the raised contact part is provided with slope gradient slope direction flow guide groove;Water-absorbing layer is the fiber layer with increasing density distribution from top to bottom, and water-absorbing layer is arranged with water-absorbing resin strip in interval;The utility model provides a kind of water-absorbing paper core structure of accelerating penetration speed, longitudinal and transverse interlaced flow guide groove is set on contact flow guide layer, liquid diffuses through the groove, while water-absorbing layer sets the fiber layer with increasing density distribution from top to bottom, forms osmotic pressure difference, and water-absorbing resin is set in fiber layer to accelerate penetration speed, finally bottom is provided with the water storage layer of three-dimensional embossing structure, reduces reverse osmosis.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products technology, and in particular to an absorbent paper core structure that accelerates the absorption rate. Background Technology

[0002] From birth until a baby can control their bladder and bowels, diapers are a constant companion, practically their second skin. With technological advancements and improved living standards, the variety of diapers on the market has increased significantly.

[0003] Existing disposable diapers typically use absorbent cores made of multiple layers of materials, such as absorbent layers and diversion layers. However, the diversion layer has a simple structure, which results in slow liquid diffusion and thus slow absorption. This causes liquid to remain on the surface and may even lead to leakage. Utility Model Content

[0004] The purpose of this invention is to provide an absorbent paper core structure that accelerates the permeation rate in order to solve the above-mentioned problems.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a water-absorbing paper core structure that accelerates the permeation rate, including a contact guiding layer, a water-absorbing layer, a water-retaining layer, and a bottom film, wherein the contact guiding layer, the water-absorbing layer, and the water-retaining layer are stacked inside the bottom film from top to bottom;

[0007] The contact guide layer includes a guide groove and a raised contact portion. The guide groove is formed by rolling on the contact guide layer and the guide groove is distributed longitudinally and laterally on the contact guide layer. The raised contact portion is provided with a sloped guide groove.

[0008] The absorbent layer is a fiber layer with a density distribution that increases from top to bottom, and absorbent resin strips are arranged at intervals within the absorbent layer.

[0009] The water storage layer has a three-dimensional embossed structure.

[0010] In the above technical solution, the contact guide layer is provided with crisscrossing guide grooves, through which the liquid diffuses. At the same time, the water absorption layer is provided with fiber layers with increasing density distribution from top to bottom to form an osmotic pressure difference. Water-absorbing resin strips are provided in the fiber layers to accelerate the permeation rate. Finally, a water storage layer with a three-dimensional embossed structure is provided at the bottom to reduce back osmosis.

[0011] In one embodiment, the flow-guiding groove is made of fibrous material, and the protruding contact portion is made of high-density fibrous material. In this technical solution, the protruding contact portion is made of high-density fibrous material, and the liquid will quickly diffuse onto the flow-guiding groove after contact, and diffuse and be absorbed through the flow-guiding groove.

[0012] In one embodiment, the contact guiding layer, the water-absorbing layer, and the water-storing layer are connected by hot melt adhesive in an intermittent glue dot bonding manner. In this technical solution, the intermittent glue dot bonding between the layers increases the permeation channels between the parts and improves the permeation rate.

[0013] In one embodiment, the three-dimensional embossed structure is a regular hexagonal honeycomb structure. In this technical solution, the three-dimensional embossing of the honeycomb structure can increase water storage capacity while reducing backflow.

[0014] In one embodiment, the water storage layer is made of wood pulp fiber, and the three-dimensional embossed structure is filled with water-absorbing resin. In this technical solution, the water-absorbing resin filled in the three-dimensional embossing absorbs water, and the structure fixes the water-absorbing resin to prevent backflow.

[0015] In one embodiment, the bottom membrane is made of a PE breathable membrane, which effectively prevents liquid diffusion while allowing water vapor diffusion to achieve breathability.

[0016] The advantages or beneficial effects of the above technical solutions include at least the following:

[0017] This utility model discloses a water-absorbing paper core structure that accelerates the permeation rate. The contact flow guiding layer is provided with crisscrossing flow guiding grooves, through which the liquid diffuses. At the same time, the water-absorbing layer is provided with fiber layers with increasing density distribution from top to bottom, forming an osmotic pressure difference. Water-absorbing resin is provided in the fiber layers to accelerate the permeation rate. Finally, a water storage layer with a three-dimensional embossed structure is provided at the bottom to reduce backflow. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0019] Figure 1 A schematic diagram of the absorbent paper core of this utility model embodiment is shown;

[0020] Figure 2 A cross-sectional structural schematic diagram of the absorbent paper core according to an embodiment of this utility model is shown;

[0021] Figure 3 A schematic diagram of the water storage layer according to an embodiment of this utility model is shown;

[0022] Reference numerals: Contact guiding layer-1, water-absorbing layer-2, water-storage layer-3, bottom membrane-4, guiding groove-11, raised contact part-12, fiber layer-21, water-absorbing resin strip-22. Detailed Implementation

[0023] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0026] It should be noted that the terms "a" and "several" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0027] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0028] Reference Figures 1-3 A water-absorbing paper core structure that accelerates the penetration rate includes a contact guiding layer 1, a water-absorbing layer 2, a water-retaining layer 3, and a bottom film 4, wherein the contact guiding layer 1, the water-absorbing layer 2, and the water-retaining layer 3 are stacked in the bottom film 4 from top to bottom;

[0029] The contact guide layer 1 includes a guide groove 11 and a raised contact portion 12. The guide groove 11 is formed by rolling on the contact guide layer 1, and the guide groove 11 is distributed longitudinally and laterally on the contact guide layer 1. The raised contact portion 12 is provided with a sloped guide groove 11.

[0030] The absorbent layer 2 is a fiber layer 21 with a density distribution that increases from top to bottom, and absorbent resin strips 22 are arranged at intervals within the absorbent layer 2.

[0031] The water storage layer 3 has a three-dimensional embossed structure.

[0032] In the above technical solution, the contact flow guiding layer 1 is provided with crisscrossing flow guiding grooves 11, through which the liquid diffuses. At the same time, the water absorption layer 2 is provided with fiber layers 21 with increasing density from top to bottom to form an osmotic pressure difference. Water-absorbing resin strips 22 are provided in the fiber layers 21 to accelerate the permeation rate. Finally, a water storage layer 3 with a three-dimensional embossed structure is provided at the bottom to reduce back osmosis.

[0033] In one embodiment, the flow-guiding groove 11 is made of fibrous material, and the protruding contact portion 12 is made of high-density fibrous material. In this technical solution, the protruding contact portion 12 is made of high-density fibrous material, and the liquid will quickly diffuse onto the flow-guiding groove 11 after contact, and diffuse and be absorbed through the flow-guiding groove 11.

[0034] In one embodiment, the contact guiding layer 1, the water-absorbing layer 2, and the water-storing layer 3 are connected by hot melt adhesive in an intermittent glue dot bonding manner. In this technical solution, the intermittent glue dot bonding between the layers increases the permeation channels between the parts and improves the permeation rate.

[0035] In one embodiment, the three-dimensional embossed structure is a regular hexagonal honeycomb structure. In this technical solution, the three-dimensional embossing of the honeycomb structure can increase water storage capacity while reducing backflow.

[0036] In one embodiment, the water storage layer 3 is made of wood pulp fiber and the three-dimensional embossed structure is filled with water-absorbing resin. In this technical solution, the water-absorbing resin filled in the three-dimensional embossing absorbs water, and the structure fixes the water-absorbing resin to prevent backflow.

[0037] In one embodiment, the bottom membrane 4 is made of a PE breathable membrane, which effectively prevents liquid diffusion while allowing water vapor diffusion to achieve breathability.

[0038] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A water-absorbing paper core structure that accelerates the permeation rate, characterized in that: It includes a contact flow guiding layer (1), a water absorption layer (2), a water storage layer (3), and a bottom membrane (4), wherein the contact flow guiding layer (1), the water absorption layer (2), and the water storage layer (3) are stacked in the bottom membrane (4) from top to bottom; The contact guide layer (1) includes a guide groove (11) and a raised contact portion (12). The guide groove (11) is formed by rolling on the contact guide layer (1) and the guide groove (11) is distributed longitudinally and laterally on the contact guide layer (1). The raised contact portion (12) is provided with a sloped guide groove (11). The absorbent layer (2) is a fiber layer (21) with a density distribution that increases from top to bottom, and absorbent resin strips (22) are arranged at intervals inside the absorbent layer (2). The water storage layer (3) is provided with a three-dimensional embossed structure.

2. The absorbent paper core structure for accelerating permeation rate according to claim 1, characterized in that: The flow guide groove (11) is made of fibrous material, and the protruding contact portion (12) is made of high-density fibrous material.

3. The absorbent paper core structure for accelerating permeation rate according to claim 1, characterized in that: The contact guide layer (1), the water absorption layer (2) and the water storage layer (3) are connected by hot melt adhesive in an intermittent adhesive dot bonding manner.

4. The absorbent paper core structure for accelerating permeation rate according to claim 1, characterized in that: The three-dimensional embossed structure is a regular hexagonal honeycomb structure.

5. The absorbent paper core structure for accelerating permeation rate according to claim 4, characterized in that: The water storage layer (3) is made of wood pulp fiber and is filled with water-absorbing resin in a three-dimensional embossed structure.

6. The absorbent paper core structure for accelerating permeation rate according to claim 1, characterized in that: The bottom membrane (4) is made of PE breathable membrane.

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