Elastic composite nonwoven fabric

Abstract

The utility model relates to the technical field of non - woven fabric, specifically provide a kind of elastic composite non - woven fabric, to solve the problem that existing non - woven fabric cannot simultaneously consider high elasticity and high comfort problem.The utility model's elastic composite non - woven fabric includes base layer and first non - woven fabric layer, the elasticity of base layer is greater than the elasticity of first non - woven fabric layer, first non - woven fabric layer and the base layer in elastic tensile state are connected by first adhesive point, after base layer restores natural state, first non - woven fabric layer is arranged between adjacent two first adhesive points in arch shape.Base layer can provide higher air permeability, first non - woven fabric layer located in the side of base layer provides good air permeability and comfort, ensure that elastic composite non - woven fabric can consider comfort and air permeability.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabrics, and specifically provides an elastic composite nonwoven fabric. Background Technology

[0002] Non-woven fabric is relatively soft and tough, and has good breathability, making it very suitable for use in close-fitting items. It can minimize the stuffiness caused to the body and is widely used in products such as masks and diapers.

[0003] Among these, the non-woven fabric material used for the elastic waistband of diapers needs to possess good elasticity while also balancing breathability and comfort. Currently, the comfort of non-woven fabrics with good elasticity needs improvement, as prolonged wear can easily cause skin discomfort, while non-woven fabrics with good breathability and comfort tend to have weaker elasticity.

[0004] Therefore, there is an urgent need for an elastic composite nonwoven fabric to solve the problem that existing nonwoven fabrics cannot simultaneously achieve high elasticity and high comfort. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing nonwoven fabrics cannot simultaneously achieve high elasticity and high comfort.

[0006] In a first aspect, the present invention provides an elastic composite nonwoven fabric, comprising a base layer and a first nonwoven fabric layer located on one side of the base layer, wherein the elasticity of the base layer is greater than the elasticity of the first nonwoven fabric layer, the first nonwoven fabric layer and the base layer in an elastically stretched state are connected by a first adhesive point, and after the base layer returns to its natural state, the first nonwoven fabric layer is arranged in an arch shape between two adjacent first adhesive points.

[0007] By adopting the above technical solution, the base layer can provide high breathability, the first non-woven fabric layer located on one side of the base layer provides good breathability and comfort, and since the elasticity of the base layer is greater than that of the first non-woven fabric layer, the first non-woven fabric layer forms an arch between two adjacent first bonding points, which further improves the softness of the first non-woven fabric layer to enhance comfort, and ensures that the elastic composite non-woven fabric can take into account both comfort and breathability.

[0008] In a specific embodiment of the above-mentioned elastic composite nonwoven fabric, the first nonwoven fabric layer is connected to the base layer in an elastically stretched state through a second adhesive point.

[0009] By adopting the above technical solution, the setting of the second adhesive point can improve the bonding strength between the first nonwoven fabric layer and the base layer, and the second adhesive point will not affect the shape of the second nonwoven fabric layer. When the second nonwoven fabric layer is in contact with the skin on the inner side, the second adhesive point will not affect the tactile feel of the elastic composite nonwoven fabric in contact with the skin.

[0010] In the specific embodiment of the above-mentioned elastic composite nonwoven fabric, the second adhesive point is arranged in a dot array, and the second adhesive point is located between the four first adhesive points.

[0011] In the specific embodiment of the above-mentioned elastic composite nonwoven fabric, the first adhesive points are arranged in a dotted array.

[0012] In a specific embodiment of the above-mentioned elastic composite nonwoven fabric, the composite nonwoven fabric further includes a second nonwoven fabric layer. The second nonwoven fabric layer is located on the side of the base layer away from the first nonwoven fabric layer. The elasticity of the base layer is greater than that of the second nonwoven fabric layer. The first nonwoven fabric layer, the second nonwoven fabric layer and the base layer in an elastic tension state are connected by a first adhesive point. After the base layer returns to its natural state, the second nonwoven fabric layer is arranged in an arch shape between two adjacent first adhesive points.

[0013] In the specific embodiments of the above-mentioned elastic composite nonwoven fabric, either the first nonwoven fabric layer or the second nonwoven fabric layer is a spunbond nonwoven fabric or a hot-air nonwoven fabric.

[0014] In the specific embodiments of the above-mentioned elastic composite nonwoven fabric, either the first nonwoven fabric layer or the second nonwoven fabric layer is any one of polypropylene single-component nonwoven fabric, parallel polypropylene and polyethylene bicomponent nonwoven fabric, or parallel high-melting-point polypropylene and low-melting-point polypropylene bicomponent nonwoven fabric.

[0015] In a specific embodiment of the above-mentioned elastic composite nonwoven fabric, the base layer is a meltblown nonwoven fabric layer, which includes elastic short fibers and elastic long fibers mixed together, and the elastic long fibers and the elastic short fibers are interwoven into a random web.

[0016] By adopting the above technical solution, elastic short fibers can strengthen elastic long fibers, thereby improving the elasticity and tensile strength of the base layer.

[0017] In the specific embodiments of the above-mentioned elastic composite nonwoven fabric, the material of the meltblown nonwoven fabric layer is a thermoplastic elastomer.

[0018] In the specific implementation of the above-mentioned elastic composite nonwoven fabric, the base layer is a spunbond nonwoven fabric layer.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The elastic composite nonwoven fabric provided by this utility model includes a base layer and first nonwoven fabric layers located on one side of the base layer. The elasticity of the base layer is greater than that of the first nonwoven fabric layers. The first nonwoven fabric layers and the base layer in an elastically stretched state are connected by first adhesive points. After the base layer returns to its natural state, the first nonwoven fabric layers are arranged in an arch shape between two adjacent first adhesive points. The base layer provides high breathability, and the first nonwoven fabric layers located on one side of the base layer provide good breathability and comfort. Furthermore, because the elasticity of the base layer is greater than that of the first nonwoven fabric layers, the first nonwoven fabric layers form an arch shape between two adjacent first adhesive points, further enhancing the softness of the first nonwoven fabric layers and improving comfort. This ensures that the elastic composite nonwoven fabric can balance comfort and breathability. Attached Figure Description

[0021] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a cross-sectional view of an elastic composite nonwoven fabric after stretching, provided by this utility model;

[0023] Figure 2 This is a cross-sectional view of an elastic composite nonwoven fabric after shrinkage, provided by this utility model;

[0024] Figure 3 This is a plan view of an elastic composite nonwoven fabric provided by this utility model;

[0025] Figure 4 This is a plan view of another elastic composite nonwoven fabric provided by this utility model;

[0026] Figure 5 This is a cross-sectional view of another elastic composite nonwoven fabric after stretching provided by this utility model;

[0027] Figure 6 yes Figure 5 The diagram shows a planar image of the elastic composite nonwoven fabric.

[0028] Figure 7 This is a cross-sectional view of another elastic composite nonwoven fabric after stretching provided by this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base layer; 2. Meltblown nonwoven fabric layer; 3. First nonwoven fabric layer; 4. First adhesive point; 5. Second adhesive point. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" 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 direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example 1

[0035] To address the problem that existing nonwoven fabrics cannot simultaneously achieve high elasticity and high comfort, this invention provides an elastic composite nonwoven fabric.

[0036] like Figure 1 and Figure 2 As shown, the elastic composite nonwoven fabric includes a base layer 1 and a first nonwoven fabric layer 2 and a second nonwoven fabric layer 3 located on both sides of the base layer 1. The elasticity of the base layer 1 is greater than that of the first nonwoven fabric layer 2 and the second nonwoven fabric layer 3. The first nonwoven fabric layer 2, the second nonwoven fabric layer 3, and the base layer 1 under tension are connected by a first adhesive point 4. After the base layer 1 returns to its natural state, the portion of the first nonwoven fabric layer 2 or the second nonwoven fabric layer 3 located between two adjacent adhesive points will be compressed, thus arching away from the base layer 1 to form an arch shape. When the base layer 1 is in a contracted state, the first nonwoven fabric layer 2 and the second nonwoven fabric layer 3 present a continuous M-shape overall.

[0037] The base layer 1 provides good elasticity and breathability, while the first nonwoven layer 2 and the second nonwoven layer 3 provide good breathability and comfort, thus enabling the elastic composite nonwoven fabric to balance elasticity, breathability and comfort.

[0038] Furthermore, the arched arrangement of the first nonwoven layer 2 and the second nonwoven layer 3 gives them higher loft, providing better cushioning under pressure. Simultaneously, the first and second nonwoven layers 2 and 3 deform under pressure to provide a larger contact area. This deformation may also obscure the first adhesive point 4, reducing the likelihood of it contacting the skin, thus improving comfort in both aspects. Additionally, hollow structures are formed between the first nonwoven layer 2 and the base layer 1, and between the second nonwoven layer 3 and the base layer 1, enhancing the breathability of the elastic composite nonwoven fabric.

[0039] For example, the base layer 1 is a meltblown nonwoven fabric layer. The fibers in the meltblown nonwoven fabric are arranged in a disordered web, thus possessing good elasticity and breathability, without affecting the overall elasticity, breathability, and comfort of the elastic composite fibers. The material of the meltblown nonwoven fabric layer is a thermoplastic elastomer, such as styrene-based block copolymers, dynamically fluidized thermoplastic elastomers, polyolefin thermoplastic elastomers, thermoplastic polyurethane elastomers, polyamide thermoplastic elastomers, polyether ester thermoplastic elastomers, etc.

[0040] For example, the meltblown nonwoven fabric layer comprises a mixture of elastic short fibers and elastic long fibers, which are interwoven and randomly formed into a web. The elastic short fibers reinforce the elastic long fibers, improving the elasticity and tensile strength of the meltblown nonwoven fabric layer. For example, the elastic long fibers are made of styrene-based block copolymers, with a diameter of 5 to 40 micrometers and a basis weight of 40 to 100 grams per square meter; the elastic short fibers are self-crimped polycaprolactam polyurethane eccentric core composite filaments.

[0041] For example, the base layer is a spunbond nonwoven fabric layer.

[0042] For example, either the first nonwoven layer 2 or the second nonwoven layer 3 can be spunbond nonwoven fabric or hot-air nonwoven fabric. The spunbond nonwoven fabric can be a single-component spunbond nonwoven fabric or a two-component spunbond nonwoven fabric. For example, both the first nonwoven layer 2 and the second nonwoven layer 3 can be spunbond nonwoven fabric. Alternatively, the first nonwoven layer 2 can be spunbond nonwoven fabric, and the second nonwoven layer 3 can be hot-air nonwoven fabric. The production processes of spunbond and hot-air nonwoven fabrics are simpler and faster, helping to reduce costs and improve production efficiency, while also facilitating the formation of multi-component fibers. Meltblown nonwoven fabric, on the other hand, has good adsorption capacity and breathability.

[0043] For example, either the first nonwoven layer 2 or the second nonwoven layer 3 can be any one of polypropylene single-component nonwoven fabric, parallel polypropylene and polyethylene bicomponent nonwoven fabric, or parallel high-melting-point polypropylene and low-melting-point polypropylene bicomponent nonwoven fabric. The parallel polypropylene and polyethylene bicomponent nonwoven fabric is made of polyethylene and polypropylene using a spunbond method, forming a double-layer core-sheath structure, which has advantages such as a soft and smooth feel, high tensile strength, safety, no additives, and no irritation.

[0044] When the base layer 1 is laminated with the first nonwoven fabric layer 2 and the second nonwoven fabric layer 3, it can be done by thermal bonding or by adhesive bonding.

[0045] The first bonding point 4 is formed by thermal bonding, where the first nonwoven fabric layer 2, the second nonwoven fabric layer 3, and the base layer 1 are melted and bonded together to create a fixing point, thus securing the first nonwoven fabric layer 2, the second nonwoven fabric layer 3, and the base layer 1. The first nonwoven fabric layer 2, the second nonwoven fabric layer 3, and the base layer 1 are joined together across their entire surface by the array of first bonding points 4. This seamless bonding prevents the base layer 1 from separating from the first and second nonwoven fabric layers 2 and 3, thus preventing a loss of the integrated feel of the elastic composite nonwoven fabric and improving its hand feel. In other words, a well-planned arrangement of the spacing of the first bonding points 4 helps enhance the integrated feel of the elastic composite nonwoven fabric, thereby improving user comfort.

[0046] For example, the first adhesive points 4 are arranged in a dotted array.

[0047] For example, such as Figure 3 As shown, the first adhesive point 4 is divided into two types: dot-shaped adhesive points and short line-shaped adhesive points. The dot-shaped adhesive points and short line-shaped adhesive points are arranged alternately along the width direction of the nonwoven fabric.

[0048] For example, such as Figure 4 As shown, the first adhesive point 4 is arranged in an S-shaped curve in the width direction of the nonwoven fabric, and the first adhesive point 4 arranged in an S-shaped curve is parallel to the length direction of the nonwoven fabric.

[0049] Example 2

[0050] like Figure 5As shown, based on Embodiment 1, the first nonwoven fabric layer 2 is connected to the base layer 1, which is in an elastically stretched state, via a second adhesive point 5. The first nonwoven fabric layer 2 serves as the outer layer, and the second nonwoven fabric layer 3 serves as the inner layer. Under external tearing force, the first nonwoven fabric layer 2 and the base layer 1 are most susceptible to stress. The second adhesive point 5 enhances the bonding strength between the first nonwoven fabric layer 2 and the base layer 1, thereby improving the tear resistance of the elastic composite nonwoven fabric. Simultaneously, the second adhesive point 5 does not affect the shape of the second nonwoven fabric layer 3, and even when the second nonwoven fabric layer 3 is in contact with the skin on its inner side, the second adhesive point 5 does not affect the tactile feel of the elastic composite nonwoven fabric against the skin.

[0051] For example, such as Figure 6 As shown, the second adhesive points 5 are arranged in a dotted array, and the second adhesive points 5 are located between the four first adhesive points 4, so that the arrangement of the first adhesive points 4 and the second adhesive points 5 is more uniform.

[0052] In summary, the advantages of the elastic composite nonwoven fabric provided by this utility model include:

[0053] The first nonwoven layer 2 and the second nonwoven layer 3 are arranged in an arched shape, giving them higher loft and providing better cushioning under pressure. Simultaneously, the first and second nonwoven layers 2 and 3 deform under pressure to provide a larger contact area. This deformation may also obscure the first adhesive point 4, reducing the likelihood of the first adhesive point 4 contacting the skin, thus improving comfort in both aspects. Furthermore, hollow structures are formed between the first nonwoven layer 2 and the base layer 1, and between the second nonwoven layer 3 and the base layer 1, to enhance the breathability of the elastic composite nonwoven fabric.

[0054] Example 3

[0055] Compared with Embodiment 1, the elastic composite nonwoven fabric provided in this embodiment of the present invention has a two-layer structure, such as... Figure 7 As shown, the elastic composite nonwoven fabric includes a base layer 1 and a first nonwoven layer 2. The elasticity of the base layer 1 is greater than that of the first nonwoven layer 2. The first nonwoven layer 2 and the base layer 1 in an elastic tension state are connected by a first adhesive point 4. After the base layer 1 returns to its natural state, the first nonwoven layer 2 is arranged in an arch shape between two adjacent first adhesive points 4.

[0056] The first adhesive point 4 can be formed by thermal bonding or by adhesive bonding.

[0057] The distribution of the first adhesive point 4 is the same as that provided in Example 1.

[0058] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An elastic composite nonwoven fabric, characterized in that, The base includes a base layer (1) and a first nonwoven fabric layer (2) located on one side of the base layer (1). The elasticity of the base layer (1) is greater than that of the first nonwoven fabric layer (2). The first nonwoven fabric layer (2) and the base layer (1) in an elastic tension state are connected by a first adhesive point (4). After the base layer (1) returns to its natural state, the first nonwoven fabric layer (2) is arranged in an arch shape between two adjacent first adhesive points (4). The first nonwoven fabric layer (2) and the base layer (1) in an elastic tension state are connected by a second adhesive point (5).

2. The elastic composite nonwoven fabric according to claim 1, characterized in that, The second adhesive point (5) is arranged in a dot array and is located between the four first adhesive points (4).

3. The elastic composite nonwoven fabric according to claim 1, characterized in that, The first adhesive point (4) is arranged in a dotted array.

4. The elastic composite nonwoven fabric according to claim 1, characterized in that, The elastic composite nonwoven fabric also includes a second nonwoven layer (3), which is located on the side of the base layer (1) away from the first nonwoven layer (2). The elasticity of the base layer (1) is greater than that of the second nonwoven layer (3). The first nonwoven layer (2), the second nonwoven layer (3), and the base layer (1) in an elastic tension state are connected by a first adhesive point (4). After the base layer (1) returns to its natural state, the second nonwoven layer (3) is arranged in an arch shape between two adjacent first adhesive points (4).

5. The elastic composite nonwoven fabric according to claim 4, characterized in that, Either the first nonwoven layer (2) or the second nonwoven layer (3) is a spunbond nonwoven fabric or a hot-air nonwoven fabric.

6. The elastic composite nonwoven fabric according to claim 5, characterized in that, The first nonwoven layer (2) and the second nonwoven layer (3) are either polypropylene single-component nonwoven fabric, parallel polypropylene and polyethylene bicomponent nonwoven fabric, or parallel high-melting-point polypropylene and low-melting-point polypropylene bicomponent nonwoven fabric.

7. The elastic composite nonwoven fabric according to claim 1, characterized in that, The base layer (1) is a meltblown nonwoven fabric layer, which includes elastic short fibers and elastic long fibers mixed together, and the elastic long fibers and the elastic short fibers are interwoven into a messy web.

8. The elastic composite nonwoven fabric according to claim 7, characterized in that, The material of the meltblown nonwoven fabric layer is a thermoplastic elastomer.

9. The elastic composite nonwoven fabric according to claim 1, characterized in that, The base layer (1) is a spunbond nonwoven fabric layer.

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