Wet household paper with liquid storage structure inside

By designing a multi-layered paper structure and a liquid storage structure, the problem of rapid moisture loss in dry environments for wet tissue paper is solved, achieving uniform wetting of the paper and extending the moisturizing time, thus improving user comfort and portability.

CN223510218UActive Publication Date: 2025-11-04DONGGUAN ZHAORI TISSUE
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Patent Information

Application Number
CN202422608610.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-11-04
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

Existing wet tissue paper loses moisture rapidly in dry environments, becoming stiff and losing the comfort and cleaning effect it had when wet, and it also lacks environmental adaptability.

Method used

It adopts a multi-layer paper structure with an internal moisturizing layer containing a liquid storage structure. The moisturizing layer, made of water-retaining material, stores liquid and slowly permeates through capillary action or a controlled release mechanism to ensure consistent paper moisture. An external water-retaining pocket is provided for easy carrying and storage.

Benefits of technology

It improves the consistency of paper's wettability and user comfort, extends the moisturizing time, reduces liquid usage, prevents leakage, is easy to carry and store, and is suitable for a variety of applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of paper for daily use, and particularly relates to wet paper for daily use with liquid storage structures inside, which comprises a paper body formed by laminating a plurality of layers of paper, the liquid storage structures are arranged in the paper body, and at least one liquid storage structure is arranged between two adjacent layers of paper; the liquid storage structure comprises a moisturizing layer made of a water storage material, liquid is stored in the moisturizing layer, and the liquid of the moisturizing layer slowly permeates to each layer of paper. And the liquid storage structure can slowly release liquid while keeping the paper wet, so that the use comfort and functionality are improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of life paper, especially to a wet water life paper with internal liquid storage structure. BACKGROUND

[0002] Life paper is a daily necessity, including toilet paper, napkin, kitchen paper and so on. With the development of technology, the types and functions of life paper are constantly enriched to meet the use needs of different scenes. However, the existing life paper still has some deficiencies in some aspects, especially in the performance when wet. For example, the moisture of wet water life paper is easy to evaporate after long time, which leads to paper dry, affecting its use effect.

[0003] The existing wet water life paper usually does not have effective moisture retention mechanism, which leads to the product losing moisture quickly after opening, especially in dry environment, the paper becomes hard, loses the comfort and cleaning effect when wet. In addition, the existing wet water life paper often ignores the user experience in different environmental conditions in design, lacks adaptability to environmental changes. SUMMARY

[0004] The utility model aims at providing a wet water life paper with internal liquid storage structure, which aims at solving the technical problem that the existing wet water life paper usually does not have effective moisture retention mechanism, which leads to the product losing moisture quickly after opening, especially in dry environment, the paper becomes hard, loses the comfort and cleaning effect when wet.

[0005] To achieve the above-mentioned purpose, the utility model embodiment provides a wet water life paper with internal liquid storage structure, which comprises a paper body composed of multiple layers of paper, a liquid storage structure is arranged in the paper body, at least one liquid storage structure is arranged between two adjacent layers of paper; the liquid storage structure comprises a moisturizing layer made of water storage material, the moisturizing layer stores liquid, and the liquid in the moisturizing layer slowly penetrates into each layer of paper.

[0006] Optionally, the moisturizing layer extends to the corresponding four side edges of the paper.

[0007] Optionally, the liquid in the moisturizing layer contains a wetting agent.

[0008] Optionally, the wetting agent is glycerol or propylene glycol.

[0009] Optionally, the outer side of the paper body is provided with a water storage pocket, and the water storage pocket is provided with a cavity for storing water.

[0010] Optionally, the inner side wall of the water storage pocket is coated with a waterproof coating.

[0011] Optionally, the waterproof coating can be made of superabsorbent polymer or nanomaterial.

[0012] Optionally, the paper body is added with a reinforcing agent.

[0013] The wet water living paper with the liquid storage structure inside provided by the embodiment of the utility model has at least one of the following technical effects: the different types and thicknesses of fiber layers can be combined together to improve the overall strength of the paper by adopting the multi-layer structure. The design of the wet water living paper contains an internal liquid storage structure, which enables the paper to slowly release liquid while keeping moist, improving the comfort and functionality of use. The liquid storage structure is arranged between the adjacent two layers of the paper body, and the moisturizing layer made of water storage material is used to store liquid. When the liquid is stored in the moisturizing layer, the liquid will not be immediately absorbed or evaporated by the paper due to the characteristics of the water storage material, but will be kept in the moisturizing layer. The liquid in the moisturizing layer will slowly penetrate to other layers of the paper through capillary action or controlled release mechanism, so that the whole paper keeps moist. When the user uses the wet water living paper, a softer and wetter touch can be felt, improving the comfort of use. The paper body is composed of multiple layers of paper, and each layer of paper is connected together through a conventional papermaking process. The moisturizing layer in the liquid storage structure is embedded between the adjacent two layers of paper and is fixed by physical or chemical methods to ensure that the liquid will not leak. The moisturizing layer and the liquid are in an inclusive relationship, and the liquid is stored in the moisturizing layer and the release speed of the liquid is controlled by the material characteristics of the moisturizing layer. The wet paper is softer when used, reducing the friction on the skin and improving the comfort of use. The uniform distribution and slow penetration of the liquid in the moisturizing layer ensure the uniformity of the moisture of the paper. The design of the moisturizing layer makes it difficult for the liquid to evaporate quickly, prolonging the moisturizing time of the paper. Controlling the release speed of the liquid reduces the amount of liquid used and avoids waste. Since the liquid is stored inside the paper, the wet water living paper is easy to carry and store and is not prone to leakage. In addition to the basic cleaning function, the wet paper can also be used for cold compress or other occasions requiring wet materials. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Fig. 1 The structure diagram of the living paper provided by the embodiment of the utility model.

[0016] Fig. 2 A cross-sectional view of the paper structure of the household paper provided in this embodiment of the utility model.

[0017] The following are the labeling elements in the figure:

[0018] Paper body 10, liquid storage structure 20, moisturizing layer 21, liquid 22, water storage pocket 30. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] In one embodiment of this utility model, such as Figs. 1-2As shown, a wet household paper with an internal liquid storage structure is provided, including a paper body 10 made of multiple layers of paper, a liquid storage structure 20 is provided in the paper body 10, and at least one liquid storage structure 20 is disposed between two adjacent layers of paper; the liquid storage structure 20 includes a moisturizing layer 21 made of water-retaining material, the moisturizing layer 21 stores liquid 22, and the liquid 22 in the moisturizing layer 21 slowly permeates into each layer of paper.

[0024] By employing a multi-layered structure, fiber layers of different types and thicknesses can be laminated together to improve the overall strength of the paper. This wet-textured tissue paper design incorporates an internal liquid storage structure 20, which allows the paper to slowly release liquid 22 while remaining moist, enhancing user comfort and functionality. The liquid storage structure 20 is positioned between adjacent layers of the paper body 10, utilizing a moisturizing layer 21 made of a water-retaining material to store the liquid 22. When the liquid 22 is stored in the moisturizing layer 21, due to the properties of the water-retaining material, the liquid 22 is not immediately absorbed or evaporated by the paper, but is retained within the moisturizing layer 21. The liquid 22 in the moisturizing layer 21 slowly permeates to other layers of the paper through capillary action or a controlled release mechanism, keeping the entire sheet of paper moist. Users experience a softer and more moist feel when using this wet-textured tissue paper, improving user comfort. The paper body 10 is composed of multiple layers of paper laminated together, with each layer connected by conventional papermaking processes. The moisturizing layer 21 in the liquid storage structure 20 is embedded between two adjacent layers of paper and fixed by physical or chemical methods to ensure that the liquid 22 will not leak. The moisturizing layer 21 and the liquid 22 are contained within each other; the moisturizing layer 21 stores the liquid 22, and the release rate of the liquid 22 is controlled by the material properties of the moisturizing layer 21. The moistened paper is softer to use, reducing friction against the skin and improving comfort. The uniform distribution and slow penetration of the liquid 22 within the moisturizing layer 21 ensures consistent moisture levels throughout the paper. The design of the moisturizing layer 21 prevents the liquid 22 from evaporating too quickly, extending the paper's moisturizing time. Controlling the release rate of the liquid 22 reduces the amount of liquid used and avoids waste. Because the liquid 22 is stored inside the paper, this wet tissue is easy to carry and store, and is less prone to leakage. In addition to basic cleaning functions, the moistened paper can also be used for cold compresses or other applications requiring moisturized materials.

[0025] In this example, the moisturizing layer 21 extends to the corresponding four sides of the paper. Specifically, the moisturizing layer 21 and the four sides of the paper extend to the corresponding four sides of the paper, forming a complete moisturizing area. This design allows the moisturizing layer 21 to cover the entire paper surface, ensuring that the liquid 22 can be evenly stored and distributed. The liquid 22 stored in the moisturizing layer 21 slowly permeates to other layers of the paper through capillary action or a pre-set penetration mechanism, thereby maintaining the overall moisture of the paper. At the same time, it ensures that the liquid 22 is evenly distributed throughout the paper towel, avoiding localized over-wetting or under-drying areas.

[0026] In this example, a wetting agent is added to the liquid 22 of the moisturizing layer 21. Specifically, the wetting agent reduces the surface tension of the liquid 22, making it easier for the liquid 22 to spread on the paper surface. The moisturizing layer 21 is made of a water-retaining material, capable of absorbing and storing a large amount of liquid 22. When the liquid 22 containing the wetting agent in the moisturizing layer 21 penetrates into the various layers of the paper, the wetting agent helps the liquid 22 to be evenly distributed, improving the paper's moisture and softness. In addition to its moisturizing function, ingredients with additional benefits such as antibacterial and skin-soothing properties can be added to the moisturizing layer 21 to meet the needs of specific consumer groups. Naturally derived moisturizing ingredients, such as glycerin and natural plant oils, can be used to meet consumers' demand for natural and environmentally friendly products.

[0027] In this example, the humectant is glycerin or propylene glycol. Specifically, both glycerin and propylene glycol are excellent moisturizing ingredients; they can absorb and retain moisture, thereby maintaining the paper's dampness. When glycerin or propylene glycol dissolves in the liquid 22 of the moisturizing layer 21, they form an aqueous gel-like substance that can absorb and lock in moisture.

[0028] In this example, a water-storage pocket 30 is provided on the outer surface of the paper body 10, and the water-storage pocket 30 has a cavity for storing water. Specifically, the water-storage pocket 30 is provided on the outer surface of the paper body 10 for storing and providing moisturizing liquid. The water-storage pocket 30 has a cavity for storing water. When the water-storage pocket 30 is filled with liquid 22, the liquid 22 in the cavity slowly permeates to each layer of the paper through the capillary action of the moisturizing layer 21 or through a controlled release mechanism, achieving a temporary water storage function. The moisturizing layer 21 absorbs the liquid 22 and remains moist. The cavity is connected to the interior of the water-storage pocket 30, forming a closed water storage space, which is usually isolated from the rest of the pocket by heat sealing, adhesive, or other sealing technologies. The design of the water-storage pocket 30 makes the entire product more compact, easy to carry and store, and suitable for travel or daily use.

[0029] In this example, the inner wall of the water storage pocket 30 is coated with a waterproof coating. Specifically, this coating is used to ensure the structural integrity and functionality of the water storage pocket 30. The waterproof coating is typically made of waterproof materials, such as polymer emulsions or rubber emulsions, which form a waterproof barrier on the inside of the water storage pocket 30. The waterproof coating prevents liquid 22 from leaking out of the water storage pocket 30 while allowing liquid 22 to flow freely inside the pocket, thus providing the necessary environment for storing liquid 22 in the paper. When the water storage pocket 30 is filled with liquid 22, the waterproof coating ensures that the liquid 22 is safely retained within the cavity and does not penetrate into other parts of the paper body 10. The waterproof coating is bonded to the inner wall of the water storage pocket 30 through a coating process, and the coating adheres tightly to the inner wall of the pocket, forming a uniform waterproof layer. The water storage pocket 30 is connected to the moisturizing layer 21 through the transfer of liquid 22, which permeates from the cavity of the water storage pocket 30 into the moisturizing layer 21. The waterproof coating provides an effective waterproof barrier, preventing liquid leakage and ensuring the safety and reliability of the product.

[0030] In this example, the waterproof coating can be made of superabsorbent polymers or nanomaterials. Specifically, these materials have extremely high water absorption and retention properties, capable of absorbing and locking in large amounts of moisture to form a hydrogel. When the water storage pocket 30 is filled with liquid 22, the superabsorbent polymer or nanomaterials absorb and retain the liquid 22, preventing it from easily leaking.

[0031] In this example, a reinforcing agent is added to the paper body 10. Specifically, without sacrificing softness, the strength of the paper towel is increased by improving the fiber structure or adding a reinforcing agent, making it less prone to tearing when wet.

[0032] Furthermore, the paper is made with a highly absorbent polymer to enhance the paper towel's moisturizing effect, allowing it to remain moist for a longer period of time.

[0033] Furthermore, adding humectants such as glycerin or propylene glycol to the Liquid 22 formulation of tissue paper can help maintain the paper's softness. Consider adding functional additives to Liquid 22, such as disinfectants, softeners, or natural fragrances, to meet the needs of different users.

[0034] Furthermore, the design of tissue paper could incorporate innovative structures, such as built-in micro-waterproof layers or special fiber weaving techniques, allowing the paper to retain its softness and comfort while also being able to hold and transport moisture for a short period. This achieves its waterproof effect by forming a waterproof film on the surface of the object. This design can be achieved by adding special materials or coatings during the paper manufacturing process, such as using biodegradable waterproof materials, to ensure the product's environmental friendliness. For example, people typically cannot use tissue paper to collect water in an emergency without a cup or other container. This is because current tissue paper designs on the market do not consider water storage structures, making them prone to cracking or leakage when holding liquids. This problem is particularly evident during outdoor activities, travel, or emergencies such as natural disasters; tissue paper with some water storage capabilities could provide great convenience.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of wet-grade household paper with an internal liquid storage structure, characterized in that: The paper body comprises multiple layers of paper laminated together, wherein a liquid storage structure is provided within the paper body, and at least one liquid storage structure is disposed between two adjacent layers of paper; the liquid storage structure includes a moisturizing layer made of water-retaining material, wherein the moisturizing layer stores liquid, and the liquid in the moisturizing layer slowly permeates to each layer of paper; and a water-retaining pocket is provided on the outer surface of the paper body.

2. The wet tissue paper with an internal liquid storage structure according to claim 1, characterized in that: The moisturizing layer and the four edges all extend to the corresponding four sides of the paper.

3. The wet tissue paper with an internal liquid storage structure according to claim 1, characterized in that: The water storage pocket has a cavity for storing water.

4. The wet tissue paper with an internal liquid storage structure according to claim 3, characterized in that: The inner wall of the water storage bag is coated with a waterproof coating.