Multi-layer gradient flow guide antibacterial pet urinal pad

Abstract

The invention relates to the technical field of pet urinal pads, and discloses a multi-layer gradient flow guide antibacterial pet urinal pad which comprises hydrophilic non-woven fabric, embedded bamboo fiber antibacterial cloth is arranged in the hydrophilic non-woven fabric, and a main flow guide groove is formed in the top side of the embedded bamboo fiber antibacterial cloth. The top side of the hydrophilic non-woven fabric is provided with a plurality of honeycomb-shaped thin flow guide lines, the outer ring of the top side of the hydrophilic non-woven fabric is provided with an annular liquid collecting groove, the top side of the hydrophilic non-woven fabric is fixedly connected with hemispherical anti-skid protrusions, the top side of the hydrophilic non-woven fabric is fixedly connected with outer-layer water-repellent non-woven fabric, and the outer-layer water-repellent non-woven fabric is fixedly connected with the outer-layer water-repellent non-woven fabric. A polyester fiber woven mesh is arranged on the bottom side of the embedded bamboo fiber anti-hypha cloth. The liquid is rapidly shunted and guided to vertically infiltrate through gravity and surface tension, so that the retention time is greatly shortened; the contact type antibacterial and deodorizing functions of the bamboo fiber layer and the physical lifting isolation of the hemispherical bulges on the sole are matched, so that the feet of the pet are effectively prevented from being wetted and slipping, and the sanitary property and the comfort degree in use are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of pet pee pad technology, specifically a multi-layer gradient flow antibacterial pet pee pad. Background Technology

[0002] Pet pee pads (also known as pet diaper pads or pet absorbent pads) are disposable hygiene products specifically designed for pets such as cats and dogs. Their core function is to quickly absorb pet urine and feces, using a physical structure to "lock in moisture and prevent leaks, keep the environment dry, and suppress odors." They are widely used in indoor cages, pet beds, floors, car seats, and portable scenarios such as pet backpacks and hotel rooms. Essentially, through the synergistic effect of their multi-layered composite structure, they solve the core pain points of pet care: "tedious cleaning, damp environment, and bacterial growth," making them an indispensable and convenient cleaning tool in pet living environments.

[0003] In existing technologies, when pets excrete large amounts of urine instantly, the liquid cannot be quickly diverted and guided vertically downwards. Instead, it relies on the material's natural permeability, which leads to liquid accumulation on the surface and prolonged residue time. This results in slow absorption and disorderly lateral spread, making it impossible to keep the surface dry instantly and reducing comfort. Therefore, to address these shortcomings, a multi-layer gradient diversion antibacterial pet urine pad is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-layer gradient flow-guiding antibacterial pet pee pad, which solves the problem that some pet pee pads cannot keep the surface dry instantly, resulting in reduced comfort.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer gradient flow-guiding antibacterial pet urinal pad, comprising a hydrophilic nonwoven fabric, wherein an embedded bamboo fiber antibacterial filament is provided inside the hydrophilic nonwoven fabric, a main flow channel is provided on the top side of the embedded bamboo fiber antibacterial filament, a plurality of honeycomb-shaped fine flow-guiding patterns are provided on the top side of the hydrophilic nonwoven fabric, an annular liquid collection groove is provided on the outer ring of the top side of the hydrophilic nonwoven fabric, a hemispherical anti-slip protrusion is fixedly connected to the top side of the hydrophilic nonwoven fabric, and an outer layer of water-repellent nonwoven fabric is fixedly connected to the top side of the hydrophilic nonwoven fabric.

[0006] Preferably, the bottom side of the embedded bamboo fiber antibacterial filament cloth is provided with a polyester fiber woven mesh, and the interior of the polyester fiber woven mesh has multiple backflow holes.

[0007] Preferably, the bottom side of the polyester fiber woven mesh is provided with wood pulp fiber cloth, the wood pulp fiber cloth contains multiple SAP particles, and the bottom side of the wood pulp fiber cloth is provided with modified dense nonwoven fabric.

[0008] Preferably, the modified dense nonwoven fabric has a PE leak-proof membrane on its bottom side, and the PE leak-proof membrane has water-proof ribs on its outside.

[0009] Preferably, the main flow channel is cross-shaped.

[0010] Preferably, the plurality of the honeycomb-shaped fine guide lines constitute a honeycomb structure.

[0011] Preferably, the wood pulp fiber cloth has a layered structure with a loose upper layer and a dense lower layer.

[0012] Preferably, the pore size inside the modified dense nonwoven fabric is smaller than that of SAP particles.

[0013] This invention provides a multi-layered gradient flow-guiding antibacterial pet urination pad. It has the following beneficial effects:

[0014] 1. This invention rapidly diverts and guides liquid vertically downwards through gravity and surface tension, significantly shortening the residence time; combined with the contact antibacterial and deodorizing function of the bamboo fiber layer, and the physical lifting and isolation of the soles of the feet by the hemispherical protrusions, it effectively prevents pets from getting wet feet and slipping, significantly improving the hygiene and comfort of use.

[0015] 2. This invention introduces a polyester fiber woven mesh as a skeleton to effectively support the volume change after the SAP swells, preventing the absorbent material from clumping or breaking; combined with a gradient wood pulp fiber cloth with a loose upper layer and a dense lower layer to create a capillary pressure difference, actively accelerating the liquid to the bottom and locking it into a gel by the SAP, completely solving the problem of liquid backflow under pressure, and ensuring that the diaper pad remains flat after absorbing liquid.

[0016] 3. This invention uses a ring-shaped liquid collection tank for buffering and interception, and an outer layer of water-repellent non-woven fabric to block siphoning, thus constructing a double defense to prevent side leakage; the bottom is supported by a dense non-woven fabric with extremely small pores, which physically blocks SAP particles and gel from penetrating, and the edge water-proof ribs strengthen the seal, ensuring that no liquid seeps out or powder falls when under pressure or moved, achieving comprehensive cleaning and protection. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the modified dense nonwoven fabric of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the wood pulp fiber cloth of the present invention.

[0021] Among them, 1. hydrophilic non-woven fabric; 2. embedded bamboo fiber antibacterial filament fabric; 3. main flow channel; 4. honeycomb fine flow guide pattern; 5. annular liquid collection channel; 6. hemispherical anti-slip protrusion; 7. outer layer water-repellent non-woven fabric; 8. polyester fiber woven mesh; 9. backflow hole; 10. wood pulp fiber cloth; 11. SAP granules; 12. modified dense non-woven fabric; 13. PE leak-proof membrane; 14. water-proof ribs. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a multi-layered gradient antibacterial pet pee pad, comprising a hydrophilic nonwoven fabric 1, which is the top contact surface of the pee pad. The hydrophilic nonwoven fabric 1 is made of a soft and highly permeable fiber material, which quickly captures liquid on the contact surface and conducts it downwards, keeping the surface dry and reducing the dampness on the pet's paws. Embedded bamboo fiber antibacterial filaments 2 are disposed inside the hydrophilic nonwoven fabric 1. The bamboo fiber antibacterial filaments 2 are tightly bonded to the hydrophilic nonwoven fabric 1 through hot pressing or needle punching processes to form an integrated structure. The "bamboo kun" component naturally contained in bamboo fiber disrupts the bacterial growth environment, thus exerting antibacterial and deodorizing effects in the early stages of liquid penetration, preventing the odor caused by prolonged urine accumulation. A main flow channel 3 is formed on the top side of the embedded bamboo fiber antibacterial filaments 2. The main flow channel 3 is a recessed channel with a depth greater than the surface texture, penetrating the core liquid absorption area. Utilizing the combination of gravitational potential energy and capillary force, when a large amount of liquid is poured in instantaneously, it can act as a rapid flood discharge channel to migrate the liquid to the surrounding areas.

[0024] The main flow channel 3 is cross-shaped. This cross-shaped structure geometrically divides the absorbent area of ​​the diaper pad into four relatively independent quadrants, allowing the liquid to not only propagate in a straight line but also undergo secondary distribution at the intersection points. This effectively prevents overflow caused by instantaneous saturation at a single drop point. Multiple honeycomb-shaped fine flow guide lines 4 are formed on the top side of the hydrophilic nonwoven fabric 1. These fine flow guide lines 4 are micro-grooves created on the surface layer by an embossing roller, evenly distributed in the areas divided by the main flow channel 3. This increases the specific surface area of ​​the surface layer, utilizing surface tension to guide trace amounts of liquid to quickly seep down along the lines. The multiple honeycomb-shaped fine flow guide lines 4 form a honeycomb structure. This hexagonal lattice arrangement provides mechanical stability, ensuring the flow channels remain open even under pressure from pets. Simultaneously, the hexagonal structure temporarily locks the liquid within each independent cell, preventing disorderly spread of liquid over a large area before it seeps down. The top outer ring of the hydrophilic nonwoven fabric 1 has an annular liquid collection groove 5, which surrounds the liquid absorption core area. This groove is used to intercept liquid that flows from the center area to the edge due to excessive flow velocity, providing a time window for secondary infiltration. A hemispherical anti-slip protrusion 6 is fixedly connected to the top side of the hydrophilic nonwoven fabric 1. Its height is slightly higher than the liquid flow layer, reducing the contact area between the pet's paws and the wet surface, providing physical isolation to prevent wet feet, while also increasing friction to prevent the pet from slipping.

[0025] Please see the appendix Figure 2 - Appendix Figure 4 The top side of the hydrophilic nonwoven fabric 1 is fixedly connected to an outer layer of water-repellent nonwoven fabric 7. The outer layer of water-repellent nonwoven fabric 7 is located at the outer edge of the annular liquid collection groove 5 and is usually laid in a wavy shape to block the path of liquid diffusion to the outermost edge of the diaper pad due to capillary action. The bottom side of the embedded bamboo fiber antibacterial fabric 2 is provided with a polyester fiber woven mesh 8. The woven mesh 8 is located between the flow guiding layer and the liquid absorption layer, and serves as a support. Utilizing the high modulus properties of polyester fiber, it prevents the lower absorbent material from accumulating or breaking after absorbing moisture and expanding, thus maintaining the overall flatness of the diaper pad. The polyester fiber woven mesh 8 has multiple backflow holes 9 inside. These backflow holes 9 are arranged in a grid pattern, which not only serve as a fast channel for vertical liquid penetration, but also provide vertical expansion space when the lower absorbent material absorbs water and expands, reducing lateral volume changes. The bottom side of the polyester fiber woven mesh 8 is provided with wood pulp fiber cloth 10. The wood pulp fiber cloth 10 is made of natural long fiber fluff pulp air-formed web, which has a high porosity and water retention capacity, and can quickly contain the fluid passing through the woven mesh 8. The wood pulp fiber cloth 10 has a layered structure with a loose upper layer and a dense lower layer, forming a suction difference (capillary pressure difference) from top to bottom. The loose upper layer facilitates the instantaneous entry of liquid, while the dense lower layer generates a stronger capillary adsorption force to firmly lock the liquid at the bottom and prevent backflow.

[0026] The wood pulp fiber cloth 10 contains multiple SAP particles 11, which are uniformly mixed or sprinkled in the gaps between the wood pulp fiber network. Upon contact with water, they rapidly swell, transforming liquid water into a solid gel, thus achieving true water-locking functionality. A modified dense nonwoven fabric 12 is placed on the bottom side of the wood pulp fiber cloth 10. This modified dense nonwoven fabric 12 has extremely high fiber entanglement density and small pore size, serving as a bottom covering layer to allow air circulation. The pore size inside the modified dense nonwoven fabric 12 is smaller than that of the SAP particles 11, ensuring that neither the fine SAP particles in their dry state nor the gel particles after absorbing water can penetrate the nonwoven fabric layer and fall out or seep out, effectively preventing powder leakage or gel slippage. A PE leak-proof membrane 13 is placed on the bottom side of the modified dense nonwoven fabric 12, serving as the bottom layer of the urinal pad. This PE (polyethylene) leak-proof membrane is completely impermeable, preventing liquid from contacting the ground or cage, maintaining a clean and hygienic environment. The PE leak-proof membrane 13 is provided with water-proof ribs 14 on the outside. The water-proof ribs 14 are heat-sealed or bonded along the outermost edge of the diaper pad to form a reinforced three-dimensional frame, which enhances the structural strength of the edge and prevents liquid from being squeezed out from the joint between the PE membrane and the upper material under pressure.

[0027] Working principle:

[0028] When a pet excretes liquid on the pee pad surface, the top layer of hydrophilic nonwoven fabric 1 quickly captures the liquid using its highly permeable fiber properties. During this process, hemispherical anti-slip protrusions 6 lift the pet's paws, placing them above the liquid flow layer, thus physically isolating the paws from contact with the wet surface. If the instantaneous liquid flow is large, the cross-shaped main flow channel 3 acts as a backflow channel, using gravitational potential energy to quickly divert the liquid to the four quadrants, preventing single-point accumulation. Simultaneously, the honeycomb-shaped fine flow guide pattern 4 uses surface tension to lock trace amounts of liquid within independent hexagonal cells and guides them to rapidly seep vertically downwards. If the liquid flow is too fast and rushes towards the edge, the annular collection channel 5 traps the liquid, working in conjunction with the outer layer of hydrophobic nonwoven fabric 7 to form a water-repellent dam, completely blocking the lateral leakage path of the liquid.

[0029] As the liquid seeps in, it passes through the embedded bamboo fiber antibacterial fabric 2, where the bamboo kun component immediately comes into contact with bacteria in the liquid, disrupting their growth environment and inhibiting odor production at its source. Subsequently, the liquid passes through the polyester fiber woven mesh 8 and its backflow holes 9 into the core absorbent layer. At this stage, the polyester fiber woven mesh 8 acts as a skeletal support, maintaining the overall flatness of the diaper pad even if the underlying material absorbs water and swells, preventing structural breakage or accumulation.

[0030] After the liquid enters the wood pulp fiber cloth 10, the layered structure of its loose upper layer and dense lower layer creates a capillary pressure difference from top to bottom, actively accelerating the liquid towards the bottom dense layer and preventing backflow. The SAP particles 11 distributed in the gaps between the wood pulp fibers undergo a rapid chemical swelling reaction upon contact with water, transforming the liquid water into an irreversible solid gel, thereby locking the water firmly deep within the fiber network.

[0031] After absorbing and locking in moisture, the modified dense nonwoven fabric 12 at the bottom, with its tiny pores, acts like a sieve to hold all the gel particles and unreacted SAP powder, preventing them from penetrating and falling (leaking powder). The bottom layer of PE leak-proof membrane 13 completely isolates moisture from contact with the ground, and together with the heat-sealed waterproof ribs 14 at the edges, ensures that liquid will not squeeze out from the bottom or edge gaps when pets step on it or the pee pad is under pressure, achieving a dry, odorless, and leak-free pee pad.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer gradient-guided antibacterial pet pee pad, comprising a hydrophilic nonwoven fabric (1), characterized in that, The hydrophilic nonwoven fabric (1) has an embedded bamboo fiber antibacterial filament cloth (2) inside. The embedded bamboo fiber antibacterial filament cloth (2) has a main flow channel (3) on its top side. The hydrophilic nonwoven fabric (1) has multiple honeycomb-shaped fine flow guide patterns (4) on its top side. The hydrophilic nonwoven fabric (1) has an annular liquid collection groove (5) on its top outer ring. The hydrophilic nonwoven fabric (1) has a hemispherical anti-slip protrusion (6) fixedly connected to its top side. The hydrophilic nonwoven fabric (1) has an outer layer of water-repellent nonwoven fabric (7) fixedly connected to its top side.

2. The multi-layer gradient flow-guiding antibacterial pet urination pad according to claim 1, characterized in that, The bottom side of the embedded bamboo fiber antibacterial cloth (2) is provided with a polyester fiber woven mesh (8), and the interior of the polyester fiber woven mesh (8) is provided with multiple backflow holes (9).

3. The multi-layer gradient flow-guiding antibacterial pet urination pad according to claim 1, characterized in that, The bottom side of the polyester fiber woven mesh (8) is provided with wood pulp fiber cloth (10), the wood pulp fiber cloth (10) is provided with multiple SAP particles (11), and the bottom side of the wood pulp fiber cloth (10) is provided with modified dense nonwoven fabric (12).

4. The multi-layer gradient flow antibacterial pet urination pad according to claim 1, characterized in that, The modified dense nonwoven fabric (12) has a PE leak-proof membrane (13) on its bottom side, and the PE leak-proof membrane (13) has water-proof ribs (14) on its outside.

5. The multi-layer gradient flow antibacterial pet urination pad according to claim 1, characterized in that, The main flow channel (3) is cross-shaped.

6. The multi-layer gradient flow-guiding antibacterial pet urination pad according to claim 1, characterized in that, Multiple honeycomb-shaped fine guide lines (4) constitute a honeycomb structure.

7. The multi-layer gradient flow antibacterial pet urination pad according to claim 1, characterized in that, The wood pulp fiber cloth (10) has a layered structure with a loose upper layer and a dense lower layer.

8. The multi-layer gradient flow-guiding antibacterial pet urination pad according to claim 1, characterized in that, The pore size inside the modified dense nonwoven fabric (12) is smaller than that of the SAP particles (11).

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