Portable absorbent bag
The portable water absorption bag addresses leakage and hygienic issues with a recessed interlocking sealing structure and fixed absorbent agent, providing secure sealing and easy handling for urine and vomit collection.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-07
Smart Images

Figure 0003256479000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of disposable hygiene products, and specifically to a portable water absorption bag.
Background Art
[0002] In daily life, people often need to urinate or vomit temporarily in scenes such as long-distance travel, outdoor exploration, and patient care. In this case, it is necessary to use a convenient and hygienic storage container. Most of the disposable urine storage bags and vomiting bags in the prior art only have a simple storage function and do not have an effective water absorption and leakage prevention structure. Therefore, they are prone to leakage during the use process, causing environmental pollution and hygienic risks. At the same time, some products have relatively poor sealing performance, and it is easy for strange smells to spread after use. They also have poor portability. In addition, although some existing water absorption bags have built-in water absorption materials, since the water absorption materials are movably arranged, when opening the bag body, the contents are prone to leak from the bag mouth, and it is difficult to meet the usage needs in various scenes.
[0003] Therefore, those skilled in the art provide a portable water absorption bag to solve the problems described in the above background art.
Summary of the Invention
Problems to be Solved by the Invention
[0004] The purpose of the present invention is to provide a portable water absorption bag to solve the problems described in the above background art.
Means for Solving the Problems
[0005] To achieve the above object, the present invention provides the following technical solutions.
[0006] A portable water-absorbing bag comprising a water-storage bag body, wherein a bag opening is integrally molded above the water-storage bag body, a recessed interlocking sealing structure is integrally molded on the inner wall of the water-storage bag body at the bag opening, and a water-absorbing agent is fixedly provided on the inner wall of the water-storage bag body below the recessed interlocking sealing structure.
[0007] As a further solution to this invention, the interlocking sealing structure is provided in two layers, upper and lower, which further improves the sealing effect.
[0008] As a further solution to the present invention, the water-absorbing agent has a circular or square structure and is fixed to the inner wall of the water storage bag body with an oil-based adhesive, and a water-absorbing resin is selected and used as the water-absorbing agent.
[0009] As a further solution to the present invention, an arc-shaped groove is provided below the interlocking sealing structure on one side edge of the water storage bag body, and a finger-grip groove is provided on the other edge of the water storage bag body at a position flush with the arc-shaped groove.
[0010] A further solution to this invention is that the arc-shaped groove and the finger-grip groove in the water storage bag body are both sealed structures to prevent water leakage.
[0011] A further solution to this invention is that the opening portion of the water storage bag body is composed of a structure of a concave arc and a convex arc that are in contact with each other, and the concave arc and the convex arc transition in an arc shape with the edge of the bag body.
[0012] As a further solution to this invention, the water storage bag body may be made of one of the following materials: plastic, a paper waterproof layer composite film, an aluminum-plastic composite film, or an aluminum-paper composite film.
[0013] A further solution to this invention is that the water-absorbing agent is a water-absorbing resin mixed with a fragrance, and is adhered to the inner walls on both sides of the water storage bag body.
[0014] A further solution to this invention involves attaching absorbent cotton to the inner wall of the bag opening. [Effects of the Invention]
[0015] Compared to conventional technology, the beneficial effects of this invention are as follows:
[0016] 1. This invention effectively secures the absorbent material by fixing it to the inner wall of the water storage bag body, preventing leakage from the bag opening. Furthermore, by selecting and using a water-absorbent resin as the absorbent material, it quickly absorbs moisture from urine or vomit, preventing leakage due to liquid movement, improving the water absorption and leak prevention performance of the product, and meeting the needs of users of disposable urine collection bags or vomit bags.
[0017] 2. The interlocking seal structure at the opening of the bag allows for quick sealing, preventing the spread of unpleasant odors and ensuring a secure seal, further improving leak prevention. The absorbent material uses a water-absorbing resin mixed with a fragrance, allowing it to release its scent after absorbing water.
[0018] 3. The arc-shaped grooves and finger-grip holes provided on the edge of the water storage bag body make it easier for the user to hold and operate the product, improving its portability and ease of use. Furthermore, since both the arc-shaped grooves and finger-grip holes employ a sealed structure, leakage problems from these areas are avoided.
[0019] 4. The opening of the bag adopts a structure of concave and convex arcs that touch each other, and by transitioning to the edge of the bag in an arc shape, it not only enhances the aesthetic appearance of the product but also prevents injuries to the user from sharp edges, thereby improving safety during use.
[0020] 5. The water storage bag body can be made from a variety of materials, allowing it to suit various usage scenarios and cost needs, thus expanding the product's range of application. [Brief explanation of the drawing]
[0021] [Figure 1] This is a structural schematic diagram of the present invention. [Figure 2] This is a side sectional view of the present invention.
Embodiments for Implementing the Invention
[0022] Hereinafter, while referring to the drawings of the embodiments of the present invention, the technical solution of the embodiments of the present invention will be clearly and completely described. Of course, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making inventive labor shall fall within the protection scope of the present invention. Embodiment 1
[0023] In this embodiment, the water storage bag body 1 is made of a plastic material. Specifically, polyethylene plastic is selected for use. This material has good flexibility and waterproofness, relatively low cost, is suitable for mass production, and conforms to the daily use scenarios of disposable urine storage bags.
[0024] A portable water absorption bag provided with a water storage bag body 1. Above the water storage bag body 1, a bag mouth 2 is integrally formed. On the part of the inner wall of the water storage bag body 1 located at the bag mouth 2, a concave-convex fitting type sealing structure 3 is integrally formed. The concave-convex fitting type sealing structure 3 is composed of a fitting convex part and a fitting concave part that fit with each other. The fitting convex part and the fitting concave part are uniformly arranged along the length direction of the bag mouth 2, and reliable sealing can be realized after closing. On the inner wall of the water storage bag body 1 below the concave-convex fitting type sealing structure 3, a water absorbent 4 is fixedly provided with an oily adhesive. The water absorbent 4 can select and use odorless water-absorbing resin, and can also select and use water-absorbing resin containing a fragrance. It has a rectangular structure. The water absorbent 4 with a rectangular structure can cover the inner wall of the bag body more fully, improve the water absorption efficiency, and the oily adhesive selects and uses a medical-grade waterproof oily adhesive, which is firmly fixed and has no irritating odor, meeting the hygiene requirements.
[0025] An arc-shaped groove 102 is provided below the interlocking sealing structure 3 on one side edge of the water storage bag body 1. The arc of the arc-shaped groove 102 is set to 120°, which allows the user to easily align it during use and improves ease of use. On the other edge of the water storage bag body 1, a finger-grip groove hole 101 is provided flush with the arc-shaped groove 102. The finger-grip groove hole 101 has a rectangular structure, with a length of 3 cm and a width of 1 cm, which makes it easy for the user to hold and operate the bag, as well as easy to hang and store after use. Both the arc-shaped groove 102 and the finger-grip groove hole 101 on the water storage bag body 1 employ a heat-seal structure, and the heat-seal temperature is controlled to 120-150°C, thereby ensuring the reliability of the seal and preventing water leakage.
[0026] The opening 2 of the water storage bag body 1 is composed of a structure of a concave arc and a convex arc touching each other, with the radius of the concave arc being 2 cm and the radius of the convex arc being 1.5 cm. Furthermore, the concave arc and the convex arc transition arc-shaped with the edge of the bag body, and the radius of the transition arc is 0.5 cm, thereby preventing injury to the user from sharp edges. Absorbent cotton (not shown) is attached to the inner wall of the opening 2.
[0027] The portable absorbent bag according to this embodiment, when used as a disposable urine collection bag, allows the user to hold the finger-grip groove 101 portion with their hand and align the arc-shaped groove 102 with the urination site. After use, the user presses the interlocking sealing structure 3 to seal it, and the absorbent material 4 quickly absorbs moisture from the urine, preventing leakage. Since it can be disposed of as is after use, it is convenient and hygienic. Example 2
[0028] In this embodiment, the water storage bag body 1 is made of a paper-based waterproof composite film, which consists of an outer paper layer and an inner waterproof layer. The inner waterproof layer is made of polyvinyl chloride material, which has good environmental protection performance and is easily decomposed after use, making it suitable for use in situations with relatively high environmental protection requirements and usable as a disposable vomit bag.
[0029] This portable water-absorbing bag comprises a water-retaining bag body 1, with a bag opening 2 integrally molded above the water-retaining bag body 1. A recessed interlocking sealing structure 3 is integrally molded on the inner wall of the water-retaining bag body 1 at the location of the bag opening 2. The interlocking protrusions and recesses of the interlocking sealing structure 3 are manufactured by an integral molding process. The interlocking protrusions have a height of 0.3 cm and a diameter of 0.5 cm, and the interlocking recesses have a depth of 0.3 cm and a diameter of 0.6 cm. This ensures that the interlocking protrusions fit snugly into the interlocking recesses, achieving a reliable seal. An absorbent material 4 is fixed to the inner wall of the water-retaining bag body 1 with an oil-based adhesive. The absorbent material 4 is made of a water-absorbent resin and has a circular structure. The circular absorbent material 4 has a diameter of 5 cm and is fixed with a medical-grade waterproof oil-based adhesive, with a fixing area of 20 cm². 2 This ensures that the water-absorbing agent 4 does not fall off.
[0030] An arc-shaped groove 102 is provided below the interlocking sealing structure 3 on one side edge of the water storage bag body 1. The arc of the arc-shaped groove 102 is set to 150°, allowing the user to easily position it in their mouth when vomiting. On the other edge of the water storage bag body 1, a finger-grip groove 101 is provided flush with the arc-shaped groove 102. The finger-grip groove 101 has an elliptical structure with a major axis of 3.5 cm and a minor axis of 1.2 cm, making it easy for the user to hold and operate the bag. Both the arc-shaped groove 102 and the finger-grip groove 101 on the water storage bag body 1 employ an adhesive sealing structure, using an environmentally friendly sealant with an adhesive width of 0.8 cm, thereby ensuring the reliability of the seal and preventing leakage of vomit.
[0031] The opening 2 of the water storage bag body 1 is composed of a structure of a concave arc and a convex arc touching each other, with the radius of the concave arc being 2.5 cm and the radius of the convex arc being 2 cm. Furthermore, the concave arc and the convex arc transition in an arc shape with the edge of the bag body, and the radius of the transition arc is 0.8 cm, thereby improving safety during use.
[0032] The portable absorbent bag according to this embodiment, when used as a disposable vomit bag, allows the user to hold the finger-grip groove 101 portion with their hand, align the arc-shaped groove 102 with the mouth area, and when vomit enters the bag body, the absorbent material 4 quickly absorbs the moisture in the vomit, preventing leakage due to liquid movement. After use, the interlocking sealing structure 3 is pressed to seal the bag, preventing the spread of unpleasant odors. The material is environmentally friendly and easily biodegradable, making it environmentally friendly even after disposal. Example 3
[0033] In this embodiment, the water storage bag body 1 is made of an aluminum-plastic composite film, which consists of an outer layer of aluminum foil and an inner layer of plastic film. The inner layer of plastic film is made of polypropylene, which has good barrier properties and can effectively prevent the diffusion of unpleasant odors, as well as good puncture resistance, making it suitable for more complex outdoor situations and usable as a disposable urine collection bag or vomit bag.
[0034] This portable water-absorbing bag comprises a water-retaining bag body 1, with a bag opening 2 integrally molded above the water-retaining bag body 1. A recessed interlocking sealing structure 3 is integrally molded on the inner wall of the water-retaining bag body 1 at the location of the bag opening 2. The recessed interlocking sealing structure 3 has 10 pairs of interlocking protrusions and recesses uniformly arranged along the length of the bag opening 2, with a spacing of 1 cm between two adjacent pairs of interlocking protrusions and recesses, thereby ensuring a complete seal. An absorbent material 4 is fixed to the inner wall of the water-retaining bag body 1 with an oil-based adhesive. The absorbent material 4 is made of a water-absorbent resin and has a rectangular structure. The rectangular absorbent material 4 has a side length of 6 cm and a thickness of 1 cm, and is fixed with a medical-grade waterproof oil-based adhesive. The amount of oil-based adhesive applied is 5 g / m². 2 This ensures that it is securely fixed in place.
[0035] An arc-shaped groove 102 is provided below the interlocking sealing structure 3 on one side edge of the water storage bag body 1. The arc of the arc-shaped groove 102 is set to 135°, making it easy for users of different heights to use. On the other edge of the water storage bag body 1, a finger-grip groove 101 is provided flush with the arc-shaped groove 102. The finger-grip groove 101 has a rectangular structure, with a length of 3.2 cm and a width of 1.1 cm. The edge of the finger-grip groove 101 is filleted with a fillet radius of 0.3 cm, thereby preventing injury to the user's hand. Both the arc-shaped groove 102 and the finger-grip groove 101 on the water storage bag body 1 employ a heat-seal structure with a heat-seal width of 1 cm, thereby ensuring reliable sealing and preventing leakage.
[0036] The opening 2 of the water storage bag body 1 is composed of a structure of a concave arc and a convex arc touching each other, with the radius of the concave arc being 2.2 cm and the radius of the convex arc being 1.8 cm. Furthermore, the concave arc and the convex arc transition arc-shaped with the edge of the bag body, and the radius of the transition arc is 0.6 cm, thereby improving the aesthetic appearance and safety of the product during use.
[0037] The portable absorbent bag according to this embodiment can be used as a disposable urine collection bag or vomit bag as needed when used in outdoor exploration scenes. The barrier properties of the aluminum-plastic composite film effectively prevent the spread of unpleasant odors, its puncture resistance prevents tearing of the bag body by sharp objects, the absorbent agent 4 allows for rapid absorption of liquids, and the interlocking sealing structure 3 ensures a secure seal. It is highly portable and suitable for carrying and using outdoors. Example 4
[0038] In this embodiment, the water storage bag body 1 is made of aluminum-paper composite film, which consists of an outer layer of aluminum foil and an inner layer of paper film. The inner layer of paper film is waterproofed, providing good texture and waterproof performance, as well as a certain degree of stiffness, making it easy for the user to handle. It can be applied to patient care situations and used as a disposable urine collection bag or vomit bag.
[0039] This portable water-absorbing bag comprises a water-retaining bag body 1, with a bag opening 2 integrally molded above the water-retaining bag body 1. A concave-concave interlocking sealing structure 3 is integrally molded on the inner wall of the water-retaining bag body 1 at the location of the bag opening 2. The top of the interlocking protrusion of the concave-concave interlocking sealing structure 3 transitions into an arc shape, thereby preventing injury to the user's hands. The interlocking protrusion has a height of 0.25 cm and a diameter of 0.4 cm, and the interlocking recess has a depth of 0.25 cm and a diameter of 0.5 cm, thereby ensuring the reliability of the seal. An absorbent material 4 is fixed to the inner wall of the water-retaining bag body 1 with an oil-based adhesive. The absorbent material 4 is made of a water-absorbent resin and has a circular structure. The circular absorbent material 4 has a diameter of 4.5 cm and a thickness of 0.8 cm. It is fixed with a medical-grade waterproof oil-based adhesive, is securely fixed, has no irritating odor, and meets the hygiene requirements of patient care.
[0040] An arc-shaped groove 102 is provided below the interlocking sealing structure 3 on one side edge of the water storage bag body 1. The arc of the arc-shaped groove 102 is set to 140°, allowing the patient to easily align it during use. On the other edge of the water storage bag body 1, a finger-grip groove 101 is provided flush with the arc-shaped groove 102. The finger-grip groove 101 has an elliptical structure with a major axis of 3.3 cm and a minor axis of 1.1 cm, which makes it easier for caregivers to assist the patient in holding and maneuvering the bag during use. Both the arc-shaped groove 102 and the finger-grip groove 101 on the water storage bag body 1 employ an adhesive sealing structure, bonded using medical-grade sealant, thereby ensuring the reliability of the seal and meeting hygiene requirements.
[0041] The opening 2 of the water storage bag body 1 is composed of a structure of a concave arc and a convex arc touching each other, with the radius of the concave arc being 2.3 cm and the radius of the convex arc being 1.7 cm. Furthermore, the concave arc and the convex arc transition arc-shaped with the edge of the bag body, and the radius of the transition arc is 0.7 cm, thereby improving safety and comfort during use.
[0042] The portable absorbent bag according to this embodiment, when used in patient care settings, allows the caregiver to assist the patient in holding the bag through the finger-hold groove 101, align the arc-shaped groove 102 with the area of use, and after use, the interlocking sealing structure 3 is pressed to achieve sealing. The absorbent material 4 quickly absorbs the liquid, preventing leakage. The rigidity of the aluminum-paper composite film allows for easy operation, making it hygienic and safe, and suitable for patient use.
[0043] [Table 1] Results analysis
[0044] 1. Absorption Performance Analysis: In all four examples, superabsorbent resins were selected as the absorbent material, and overall, they exhibited excellent absorption performance, meeting the core usage needs of disposable urine collection bags or vomiting bags. Here, Example 3 (aluminum-plastic composite film) achieved a maximum absorption ratio of 35 times, which is superior to the other examples and is suitable for the large liquid handling needs that may occur in outdoor settings. Example 4 targeted patient care settings and showed high absorption compatibility with simulated urine, with the ability to completely absorb 100 ml within 2 minutes, meeting the needs of handling a patient's single urination volume. Examples 1 and 2 targeted everyday urine collection bag and vomiting bag settings, respectively, and both the absorption speed and absorption volume accurately matched the amount used in a single session in the respective settings, achieving both practicality and economic efficiency.
[0045] 2. Sealing Analysis: All examples passed sealing tests from different angles, confirming the reliability of the sealing design in the interlocking sealing structure, arc-shaped grooves, and finger-grip grooves. The drop test in Example 1 and the 24-hour inverted test in Example 4 simulated scenarios such as collisions and placement that may occur during daily use, and the results of no leakage ensured hygiene and safety during use. The pressure test in Example 2 was suited to pressure scenarios that may occur when the vomit bag is compressed, and the absence of leakage under a pressure of 0.5 MPa demonstrated the pressure resistance of the sealing structure. The odor barrier test in Example 3 was suited to the needs of use in enclosed outdoor spaces (e.g., tents, cars), and the odor barrier rate of over 90% improved user comfort.
[0046] 3. Analysis of the suitability of special properties: The special properties of each embodiment are highly suited to the corresponding usage scenario. The high degradation rate of Embodiment 2 meets the needs of environmental protection scenarios and solves the environmental challenges of conventional disposable products. The puncture resistance and portability of Embodiment 3 accurately address the problems of contact with sharp objects and limited storage space that may be encountered in outdoor exploration scenarios. The low total number of bacterial colonies and excellent stiffness of Embodiment 4 meet the stringent requirements of hygiene standards and ease of operation in patient care scenarios, and the supportless opening design can reduce the need for caregiver assistance and improve care efficiency.
[0047] 4. Summary of Material Suitability: By selecting different materials for the bag body, the product achieves differentiated solutions for different scenarios. Polyethylene plastic (Example 1) is low-cost, highly flexible, and suitable for mass-produced, everyday disposable urine collection bags. Paper waterproof layer composite film (Example 2) is environmentally friendly and easily biodegradable, suitable for vomiting bag scenarios where environmental protection needs are relatively high. Aluminum-plastic composite film (Example 3) has excellent barrier properties and puncture resistance, making it suitable for complex outdoor environments. Aluminum-paper composite film (Example 4) meets hygiene standards, has high stiffness, is easy to handle, and is suitable for patient care scenarios. The product performance corresponding to each material can accurately meet the needs of various scenarios, enabling diverse product applications.
[0048] The above description is merely a preferred specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Those skilled in the art should know that any equivalent substitution or modification based on the technical solution of the present invention and the concept of the invention, within the technical scope disclosed herein, should all be included within the scope of protection of the present invention. [Explanation of Symbols]
[0049] 1. Water storage bag body 101 Finger groove hole 102 Arc-shaped groove 2 bag opening 201 Concave arc 202 Convex arc 3 Concave and convex fitting type sealed structure 4. Water absorbent
Claims
1. A portable water-absorbing bag comprising a water storage bag body (1), A portable water-absorbing bag characterized in that a bag opening (2) is integrally molded above the water-storage bag body (1), a recessed interlocking sealing structure (3) is integrally molded on the inner wall of the water-storage bag body (1) at the bag opening (2), and a water-absorbing agent (4) is fixedly provided on the inner wall of the water-storage bag body (1) below the recessed interlocking sealing structure (3).
2. The portable water-absorbing bag according to claim 1, characterized in that the water-absorbing agent (4) has a circular or square structure and is adhered to the inner wall of the water-retaining bag body (1), and a water-absorbing resin is selected to be used as the water-absorbing agent (4).
3. The portable water-absorbing bag according to claim 1, characterized in that an arc-shaped groove (102) is provided below the interlocking sealing structure (3) on one side edge of the water-storage bag body (1), and a finger-grip groove (101) is provided at a position flush with the arc-shaped groove (102) on the other edge of the water-storage bag body (1).
4. The portable water-absorbing bag according to claim 3, characterized in that the arc-shaped groove (102) and the finger-grip groove hole (101) in the water-storage bag body (1) are both sealed structures to prevent water leakage.
5. The portable water-absorbing bag according to claim 1, characterized in that the opening (2) portion of the water-storage bag body (1) is composed of a structure of a concave arc (201) and a convex arc (202) touching each other, and the concave arc (201) and the convex arc (202) transition in an arc shape with the edge of the bag body.
6. The portable water-absorbing bag according to claim 1, characterized in that the water storage bag body (1) is made of one of the following: plastic, a paper waterproof layer composite film, an aluminum-plastic composite film, or an aluminum-paper composite film.
7. The portable water-absorbing bag according to claim 1, characterized in that the water-absorbing agent (4) is a water-absorbing resin mixed with a fragrance, and is adhered to the inner walls on both sides of the water storage bag body (1).
8. The portable absorbent bag according to claim 1, characterized in that absorbent cotton is attached to the inner wall of the bag opening (2).