Soft moisture-proof dehumidifying pad

Abstract

The utility model provides a soft moisture-proof dehumidification pad. The soft moisture-proof dehumidification pad comprises a first needle-punched non-woven fabric layer, a first hot melting fiber net layer, a moisture absorption layer, a second hot melting fiber net layer and a second needle-punched non-woven fabric layer which are sequentially connected in a hot melting composite mode from top to bottom. The first needle-punched non-woven fabric layer and the second needle-punched non-woven fabric layer serve as the surface layers of the dehumidification pad, so that the dehumidification pad is high in structural strength, good in tear resistance, fluffy and soft, the hand feeling of the dehumidification pad is soft, and the use comfort is improved. Moreover, the gaps between the fibers are large, so that the moisture absorption layer can better absorb moisture. The first hot-melting fiber net layer and the second hot-melting fiber net layer play roles in bonding the first needle-punched non-woven fabric layer and the second needle-punched non-woven fabric layer and fixing the moisture-proof beads in the hot-melting compounding process, and the hot-melting fiber net is condensed on fiber cross points after being heated and melted, so that a compact hard layer is not formed, and the moisture-proof effect is good. And the moisture-proof beads can normally absorb moisture in the external environment.

Description

Technical Field

[0001] This utility model relates to the field of textile products technology, and in particular to a soft, moisture-proof and dehumidifying mat. Background Technology

[0002] Summer is hot and humid outside, and damp inside. Although air conditioners or dehumidifiers can be used to remove moisture, over time, mold can easily grow on mattresses or in the gaps between floors and carpets due to the damp environment. Currently, the main solution for dehumidifying home textile products is to use dehumidifying mats.

[0003] Hot melt adhesive is a type of adhesive, mostly in granular or powder form. It melts into a liquid state after heating and is used to bond structural layers on both sides. After cooling, it forms a strong bond.

[0004] However, most existing dehumidifying pads are made by mixing hot melt adhesive with moisture-proof bead powder and then heating it to form a dehumidifying layer with adhesive properties.

[0005] The applicant has discovered that the prior art has at least the following technical problems:

[0006] After hot melt adhesive cures, it forms a hard layer. This characteristic causes it to encapsulate the moisture-absorbing bead mixture inside, creating a relatively closed space. This results in a smaller exposed area of ​​the moisture-absorbing bead mixture, affecting its moisture absorption efficiency. Furthermore, the presence of this hard layer makes the dehumidifying pad feel stiff and reduces its comfort. Moreover, due to the limited heat and water resistance of hot melt adhesive, it is prone to aging and even loss of adhesion under high temperatures or frequent washing, leading to delamination of the dehumidifying pad and shortening its lifespan.

[0007] Furthermore, even if the EVA hot melt adhesive and desiccant powder are mixed evenly before heating, the uncontrollable flow characteristics of the hot melt adhesive during heating can easily lead to uneven distribution of the desiccant powder, which will further affect the moisture absorption effect of the dehumidifying pad and reduce its overall performance.

[0008] For example, application number CN201710149542.9 discloses a non-woven mattress that dehumidifies, removes mites, and eliminates odors.

[0009] In view of this, the present invention is hereby proposed. Utility Model Content

[0010] The purpose of this invention is to provide a soft, moisture-proof, and dehumidifying mat to address the design flaws of existing dehumidifying mats. While existing mats use hot melt adhesive mixed with moisture-absorbing beads to form an adhesive dehumidifying layer, the hardened hot melt adhesive layer can trap the internal moisture-absorbing beads, affecting absorption efficiency. Furthermore, this results in a hardened feel and poor user comfort. The preferred technical solutions provided by this invention offer numerous advantages, which are detailed below.

[0011] To achieve the above objectives, the present invention provides the following technical solution:

[0012] The present invention provides a soft moisture-proof and dehumidifying mat, comprising, from top to bottom, a first needle-punched nonwoven fabric layer, a first hot-melt fiber web layer, a moisture-absorbing layer, a second hot-melt fiber web layer, and a second needle-punched nonwoven fabric layer that are sequentially heat-melted and compositely connected.

[0013] Preferably, the basis weight of the first needle-punched nonwoven layer and the second needle-punched nonwoven layer is 40 g / m². 2 ~250g / m 2 .

[0014] Preferably, the basis weight of the hot-melt fiber web in the first and second hot-melt fiber web layers is 5 g / m². 2 -30g / m 2 .

[0015] Preferably, the amount of moisture-proof beads used in the moisture-absorbing layer is 20 g / m³. 2 -180g / m 2 .

[0016] Preferably, a first positioning groove is provided on the lower surface of the first hot melt fiber mesh layer, and a second positioning groove is provided on the upper surface of the second hot melt fiber mesh layer. The first positioning groove and the second positioning groove are arranged in a matrix and are provided in a one-to-one correspondence to each other, for accommodating the moisture-proof beads.

[0017] Preferably, both the first needle-punched nonwoven layer and the second needle-punched nonwoven layer comprise any two or more combinations of polyester fiber, viscose fiber, nylon fiber, cotton fiber, and flax fiber.

[0018] Preferably, the fibers of the first needle-punched nonwoven layer and the second needle-punched nonwoven layer contain functional agents.

[0019] Preferably, the functional agent includes any or any combination of antibacterial deodorizers, odor deodorizers, antifouling agents, anti-mite agents, or mold inhibitors.

[0020] Preferably, the particle size of the moisture-proof beads is 0.3mm-5mm.

[0021] Preferably, the shape of the moisture-proof beads includes regular or irregular geometric shapes.

[0022] The preferred technical solution of this utility model can also produce at least the following technical effects:

[0023] This invention effectively avoids the design flaws of existing dehumidifying pads. Most existing pads use a mixture of hot melt adhesive and desiccant beads, heated to form an adhesive dehumidifying layer. However, the hot melt adhesive, after curing, forms a dense, hard layer that encapsulates the internal desiccant beads, affecting absorption efficiency and causing the pad to feel hard and be uncomfortable to use. This invention provides a soft, moisture-proof dehumidifying pad, comprising, from top to bottom, a first needle-punched nonwoven fabric layer, a first hot-melt fiber web layer, a moisture-absorbing layer, a second hot-melt fiber web layer, and a second needle-punched nonwoven fabric layer, all connected by hot-melt bonding. The first and second needle-punched nonwoven fabric layers, serving as the surface layer, possess high structural strength, good tear resistance, and a long service life. They are also fluffy and soft, resulting in a soft overall feel. Their thickness enhances comfort, and they remain crease-free after folding and unfolding, making them easy to store. Furthermore, the large fiber gaps create breathable channels, allowing the moisture-absorbing layer to better absorb moisture from the external environment. The first and second hot-melt fiber web layers are located on the upper and lower sides of the moisture-absorbing layer. During the hot-melt bonding process, they serve to bond the first and second needle-punched nonwoven fabric layers and fix the moisture-proof beads. After the hot-melt fiber webs of the first and second layers melt upon heating, they coalesce at their fiber intersections, preventing the formation of a dense, hard layer upon solidification. This avoids over-encapsulating the moisture-absorbing layer, allowing it to function properly for dehumidification. The moisture-proof beads in the moisture-absorbing layer absorb moisture from the environment. Because the beads are protected and supported by the first and second hot-melt fiber web layers respectively, they do not affect the aesthetics of the dehumidifying pad and are prevented from being encased in a dense, hard layer. This allows the beads to have a larger exposed area, effectively absorbing moisture and achieving the dehumidifying function of the dehumidifying pad. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the first type of soft, moisture-proof, and dehumidifying pad provided by this utility model in a separated state;

[0026] Figure 2 This is a schematic diagram of the second type of soft moisture-proof and dehumidifying pad provided by this utility model in a separated state;

[0027] Figure 3 This is a plan view of the first hot-melt fiber mesh layer, the moisture-absorbing layer, and the second hot-melt fiber mesh layer of the second type of soft moisture-proof and dehumidifying pad provided by this utility model in a separated state;

[0028] Figure 4 This is a schematic diagram of the structure of a soft, moisture-proof and dehumidifying pad provided by this utility model in an unmelted composite state.

[0029] In the picture:

[0030] 1. First needle-punched nonwoven fabric layer;

[0031] 2. First hot-melt fiber mesh layer; 201. Lower surface; 202. First positioning groove;

[0032] 3. Moisture-proof beads;

[0033] 4. Second hot-melt fiber mesh layer; 401. Upper surface; 402. Second positioning groove;

[0034] 5. Second needle-punched nonwoven fabric layer. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1:

[0037] like Figure 1 As shown, this utility model provides a soft moisture-proof and dehumidifying mat, which includes a first needle-punched nonwoven fabric layer 1, a first hot-melt fiber web layer 2, a moisture-absorbing layer, a second hot-melt fiber web layer 4, and a second needle-punched nonwoven fabric layer 5, which are sequentially heat-melted and compositely connected from top to bottom.

[0038] Furthermore, both the first needle-punched nonwoven layer 1 and the second needle-punched nonwoven layer 5 are made of needle-punched nonwoven fabric.

[0039] The first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4 are both made of hot-melt fiber mesh. After the hot-melt fiber mesh is melted, it condenses at the fiber intersections. Although the porosity of the mesh will decrease, it still maintains a certain degree of air permeability.

[0040] The moisture-absorbing layer includes moisture-proof beads 3 evenly arranged between the first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4.

[0041] The first needle-punched nonwoven fabric layer 1 and the second needle-punched nonwoven fabric layer 5 serve as the surface layer of the dehumidifying pad. Due to the high structural strength, good tear resistance, and long service life of needle-punched nonwoven fabric, it is also more fluffy, soft, and thicker than conventional nonwoven fabrics, resulting in a softer overall feel and improved user comfort. It also folds and unfolds without leaving creases, making it easy to store. Furthermore, the larger fiber gaps in the needle-punched nonwoven fabric create breathable channels, allowing the moisture-absorbing layer to better absorb moisture from the external environment. In addition, the porous structure of the needle-punched nonwoven fabric also gives it a certain degree of water absorption, further enhancing the dehumidifying effect of the pad.

[0042] The first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4 are located on the upper and lower sides of the moisture-absorbing layer. During the hot-melt bonding process, they serve to bond the first needle-punched nonwoven fabric layer 1 and the second needle-punched nonwoven fabric layer 5, and to fix the desiccant beads 3. Unlike hot-melt adhesive, the hot-melt fiber mesh melts when heated and solidifies at its fiber intersections, retaining its mesh structure. Unlike hot-melt adhesive, it does not solidify into a dense, hard layer. This further improves the softness of the dehumidifying pad, ensuring a strong connection between the first needle-punched nonwoven fabric layer 1 and the second needle-punched nonwoven fabric layer 5. It also fixes the desiccant beads 3 without over-wrapping them, allowing them to function properly. Moreover, compared to hot-melt adhesive, this invention uses the first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4 for bonding, making subsequent cleaning of the dehumidifying pad more convenient. There is no need to worry about hot-melt adhesive affecting the cleaning effect or damaging the dehumidifying pad.

[0043] The moisture-proof beads 3 of the moisture-absorbing layer are used to absorb moisture from the external environment. Since the moisture-proof beads 3 are protected and supported by the first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4 on the top and bottom respectively, it does not affect the appearance of the dehumidifying pad and avoids being wrapped by the dense hard layer, so that the moisture-proof beads 3 have a larger exposed area, effectively absorb moisture, and realize the moisture-proof function of the dehumidifying pad.

[0044] As an optional implementation, the needle-punched nonwoven fabrics of the first needle-punched nonwoven layer 1 and the second needle-punched nonwoven layer 5 both include any two or more combinations of polyester fiber, viscose fiber, nylon fiber, cotton fiber and flax fiber.

[0045] Polyester fiber has good structural strength, elasticity, wrinkle resistance and shape retention, which makes needle-punched nonwoven fabric less prone to deformation during use and extends its service life.

[0046] Viscose fiber has good moisture absorption, softness, breathability and spinnability, which makes needle-punched nonwoven fabrics soft to the touch, easy to dye and not prone to static electricity.

[0047] Nylon fibers have good abrasion resistance, tensile strength, tensile elongation, moisture absorption and resilience, which makes needle-punched nonwoven fabrics less prone to damage during long-term use.

[0048] Cotton fibers have good structural strength, moisture absorption, and breathability, which gives needle-punched nonwoven fabrics good moisture absorption and breathability.

[0049] Flax fiber has good moisture absorption, breathability, antibacterial and antistatic properties, which gives needle-punched nonwoven fabric a natural antibacterial and deodorizing function.

[0050] Because different fibers have unique properties, they can be flexibly combined according to usage needs to adapt to different usage scenarios, resulting in a wide range of applications.

[0051] As an optional implementation, the fibers of the first needle-punched nonwoven layer 1 and the second needle-punched nonwoven layer 5 contain functional agents.

[0052] As an optional implementation, the functional agent includes any or any combination of antibacterial deodorizers, odor deodorizers, antifouling agents, anti-mite agents, or mold inhibitors in the prior art.

[0053] This configuration enables the first needle-punched nonwoven fabric layer 1 and the second needle-punched nonwoven fabric layer 5 to have functions such as antibacterial and deodorizing properties, deodorizing properties, stain resistance, mite resistance, or mildew resistance.

[0054] Functional agents can be flexibly combined according to usage needs, making the dehumidifying pad adaptable to different usage scenarios and with a wide range of applications.

[0055] As an optional implementation, the basis weight of the first needle-punched nonwoven layer 1 and the second needle-punched nonwoven layer 5 is 40 g / m². 2 ~250g / m 2 .

[0056] This configuration allows for the selection of appropriate basis weight of the needle-punched nonwoven fabric based on the application scenario, enabling a balance between cost and performance between the first needle-punched nonwoven fabric layer 1 and the second needle-punched nonwoven fabric layer 5.

[0057] As an optional implementation, the basis weight of the hot-melt fiber web of the first hot-melt fiber web layer 2 and the second hot-melt fiber web layer 4 is 5 g / m². 2 -30g / m 2 .

[0058] This configuration allows for the selection of an appropriate basis weight of the hot melt fiber mesh based on the application scenario, enabling a balance between cost and performance between the first hot melt fiber mesh layer 2 and the second hot melt fiber mesh layer 4.

[0059] As an optional implementation, the amount of moisture-proof beads 3 used in the moisture-absorbing layer is 20g / m².2 -180g / m 2 .

[0060] This setting allows for the selection of an appropriate amount of desiccant beads 3 based on the usage scenario, adapting to different humidity environments and usage requirements.

[0061] As an optional implementation, the particle size of the moisture-proof beads 3 is 0.3mm-5mm.

[0062] This setup allows for the selection of appropriate particle size moisture-proof beads 3 based on the specifications of the moisture-proof pad, to adapt to different humidity environments and usage requirements.

[0063] As an alternative implementation, the shape of the moisture-proof bead 3 includes regular or irregular geometry.

[0064] Regularly shaped moisture-proof beads 3 can be more evenly distributed between the first hot melt fiber mesh layer 2 and the second hot melt fiber mesh layer 4, and are easy to mass-produce, with high production efficiency and good consistency.

[0065] Compared to regular-shaped desiccant beads, irregularly shaped desiccant beads have a larger contact area with air, enabling them to absorb moisture from the external environment more effectively.

[0066] Furthermore, such as Figure 1 As shown, the moisture-proof bead 3 is a hemispherical moisture-proof bead 3, whose flat surface can be flatly attached to the hot melt fiber mesh of the second hot melt fiber mesh layer 4, reducing the displacement of the moisture-proof bead 3 during the hot melting process and improving the bonding force between the moisture-proof bead 3 and the hot melt fiber mesh layer.

[0067] Example 2:

[0068] The difference between Example 2 and Example 1 is as follows: Figures 2-4 As shown, a first positioning groove 202 is provided on the lower surface 201 of the first hot melt fiber mesh layer 2, and a second positioning groove 402 is provided on the upper surface 401 of the second hot melt fiber mesh layer 4. The first positioning groove 202 and the second positioning groove 402 are arranged in a matrix and are arranged in a one-to-one correspondence to each other, for accommodating moisture-proof beads 3.

[0069] A mold with a matrix-arranged protrusion structure is used to extrude the hot melt fiber mesh of the first hot melt fiber mesh layer 2 and the second hot melt fiber mesh layer 4 to form the first positioning groove 202 and the second positioning groove 402.

[0070] like Figures 2-4 As shown, the moisture-proof bead 3 is a spherical moisture-proof bead 3, and the first positioning groove 202 and the second positioning groove 402 are hemispherical and adapted to the moisture-proof bead 3.

[0071] When the first hot-melt fiber mesh layer 2 is laid onto the second hot-melt fiber mesh layer 4, the first positioning groove 202 and the second positioning groove 402 correspond one-to-one, together forming the positioning space for the moisture-proof beads 3. The matrix-arranged positioning space can accommodate and position the moisture-proof beads 3, so that the moisture-proof beads 3 can be accurately and evenly placed between the first hot-melt fiber mesh layer 2 and the second hot-melt fiber mesh layer 4 before hot-melting, avoiding the moisture-proof beads 3 from moving unintentionally.

[0072] Then, during the hot-melting process, since the moisture-proof beads 3 are limited by the first positioning groove 202 and the second positioning groove 402 before hot-melting, even if the hot-melt fiber mesh is heated and melted, it can still condense along the surface of the moisture-proof beads 3 at the intersection of the hot-melt fibers, reducing the movement of the moisture-proof beads 3, and at the same time improving the connection between the moisture-proof beads 3 and the hot-melt fiber mesh.

[0073] Because the position of the desiccant bead 3 is fixed, the moisture-absorbing layer can maintain a stable moisture absorption function during long-term use.

[0074] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0075] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0076] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "a particular example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A soft, moisture-proof, and dehumidifying mat, characterized in that, It includes a first needle-punched nonwoven fabric layer, a first hot-melt fiber web layer, a moisture-absorbing layer, a second hot-melt fiber web layer, and a second needle-punched nonwoven fabric layer that are sequentially heat-melted and compositely connected from top to bottom.

2. The soft, moisture-proof, and dehumidifying mat according to claim 1, characterized in that, The basis weight of the first needle-punched nonwoven layer and the second needle-punched nonwoven layer is 40 g / m². 2 ~250g / m 2 .

3. The soft, moisture-proof, and dehumidifying mat according to claim 1, characterized in that, The basis weight of the hot melt fiber web in the first and second hot melt fiber web layers is 5 g / m². 2 -30g / m 2 .

4. The soft, moisture-proof, and dehumidifying mat according to claim 1, characterized in that, The amount of moisture-proof beads used in the moisture-absorbing layer is 20g / m². 2 -180g / m 2 .

5. A soft, moisture-proof, and dehumidifying mat according to claim 4, characterized in that, A first positioning groove is provided on the lower surface of the first hot melt fiber mesh layer, and a second positioning groove is provided on the upper surface of the second hot melt fiber mesh layer. The first positioning groove and the second positioning groove are arranged in a matrix and are arranged in a one-to-one correspondence to each other, for accommodating the moisture-proof beads.

6. The soft, moisture-proof, and dehumidifying mat according to claim 5, characterized in that, The moisture-proof beads have a particle size of 0.3mm-5mm.

7. A soft, moisture-proof, and dehumidifying mat according to claim 6, characterized in that, The shape of the moisture-proof beads can be regular or irregular geometric shapes.

Images