Highly waterproof composite non-woven fabric

Abstract

The utility model discloses a highly waterproof composite non-woven fabric, which comprises a reinforcing layer, non-woven fabrics are compounded on two sides of the reinforcing layer, an elastic waterproof layer is adhered on the non-woven fabric on one side, a plurality of guide grooves with equal length are arranged on the waterproof layer, water absorption layers are adhered on two sides of the guide grooves on the waterproof layer, and waterproof films are arranged on the surfaces of the water absorption layers. After water enters through the air holes, the water can be absorbed under the action of the water absorption layer, the waterproof layer can prevent the water from entering the non-woven fabric, and when a large amount of water is accumulated and the whole body is extruded, the water on the water absorption layer can be extruded outwards through the guide grooves, so that water accumulation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of composite fabrics, in particular to a highly waterproof composite non-woven fabric. Background Art

[0002] Non-woven fabrics are also called non-woven fabrics, needle-punched cotton, etc., and can be used in different industries. After searching, it was found that the Chinese utility model patent with the authorization announcement number CN214056698U disclosed a non-woven fabric with good waterproof effect. The utility model is provided with a waterproof membrane layer, and the waterproof membrane layer is located on the outermost side to achieve the isolation operation of external water, thereby avoiding the damage of the first non-woven fabric layer and the second non-woven fabric layer inside due to water soaking, improving the waterproof performance of the non-woven bag, and having a good waterproof effect. However, the non-woven fabric in the above patent has the following problems: (1) There are also small holes on the waterproof membrane, and water will enter through the small holes and wet the non-woven fabric, which cannot achieve the best waterproof effect; (2) The transverse elastic fibers and the vertical elastic fibers play a reinforcing role, but the transverse elastic fibers and the vertical elastic fibers are all in the same plane, that is, on the X-axis and the Y-axis, but cannot be reinforced in the height, that is, on the Z-axis, resulting in insufficient strength. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a highly waterproof composite non-woven fabric to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A highly waterproof composite non-woven fabric comprises a reinforcing layer, non-woven fabrics are composited on both sides of the reinforcing layer, an elastic waterproof layer is bonded to the non-woven fabric on one side, a plurality of guide grooves of equal length are provided on the waterproof layer, a water-absorbing layer is bonded on both sides of the guide grooves on the waterproof layer, and a waterproof film is provided on the surface of the water-absorbing layer.

[0006] Preferably, the reinforcing layer includes an intermediate layer, warps and wefts woven on both sides of the intermediate layer, extension lines sewn on intersections of the warps and wefts, and the extension lines are sewn on non-woven fabrics on both sides.

[0007] Preferably, the waterproof membrane is provided with a plurality of air holes.

[0008] Preferably, a fleece layer is bonded to the non-woven fabric on the side of the reinforcement layer away from the waterproof layer.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] (1) After water enters through the air holes, it can be absorbed by the water-absorbing layer, while the waterproof layer can prevent water from entering the non-woven fabric. When a lot of water accumulates, squeezing the whole will cause the water on the water-absorbing layer to be squeezed outward from the guide groove, thereby preventing water accumulation.

[0011] (2) The reinforcement layer can strengthen the connection with the non-woven fabrics on both sides through the action of warp, weft and extension lines, thereby improving the overall strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 is a schematic diagram of the reinforcement layer;

[0014] In the figure: 1-reinforcement layer, 11-middle layer, 12-warp, 13-weft, 14-extension thread, 2-non-woven fabric, 3-waterproof layer, 4-guide groove, 5-water absorption layer, 6-waterproof membrane, 7-breathable hole, 8-fleece layer. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1 A highly waterproof composite nonwoven fabric comprises a reinforcing layer 1, and nonwoven fabrics 2 are composited on both sides of the reinforcing layer 1. Specifically, Figure 2 As shown, the reinforcing layer 1 includes an intermediate layer 11, warps 12 and wefts 13 woven on both sides of the intermediate layer, and extension lines 14 sewn on the intersections of the warps and wefts, and the extension lines 14 are sewn on the non-woven fabrics 2 on both sides. Thus, the reinforcing layer 1 radiates in three-dimensional directions, improving the connection strength with the non-woven fabrics. Among them, the reinforcing layer 1 can be woven with metal fibers or woven with polypropylene fibers.

[0017] On one side of the non-woven fabric 2, an elastic waterproof layer 3 is bonded, and a plurality of equal-length guide grooves 4 are provided on the waterproof layer 3. A water-absorbing layer 5 is bonded on both sides of the guide groove 4 on the waterproof layer 3. A waterproof film 6 is provided on the surface of the water-absorbing layer 5, and a plurality of air holes 7 are provided on the waterproof film 6. The waterproof layer is made of polyethylene material, and the water-absorbing layer can be made of absorbent cotton. The air holes 7 can make the fabric breathable, but during use, after water enters through the air holes 7, it can be absorbed by the water-absorbing layer 5, while the waterproof layer 3 can prevent water from entering the non-woven fabric 2. When a lot of water accumulates, squeezing the whole will cause the water on the water-absorbing layer 5 to be squeezed outward from the guide groove 4, thereby preventing water accumulation.

[0018] The non-woven fabric on the side of the reinforcing layer 1 away from the waterproof layer 3 is bonded with a fleece layer 8. The fleece layer improves the comfort of the inner side of the fabric and reduces friction, and the fabric can be used in seats, packaging bags, etc.

[0019] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly waterproof composite nonwoven fabric, characterized in that: The invention comprises a reinforcing layer (1), non-woven fabrics (2) are compounded on both sides of the reinforcing layer (1), an elastic waterproof layer (3) is bonded to the non-woven fabric (2) on one side, a plurality of guide grooves (4) of equal length are provided on the waterproof layer (3), a water-absorbing layer (5) is bonded on both sides of the guide grooves (4) on the waterproof layer (3), and a waterproof film (6) is provided on the surface of the water-absorbing layer (5).

2. A highly waterproof composite nonwoven fabric according to claim 1, characterized in that: The reinforcing layer (1) comprises an intermediate layer (11), warp threads (12) and weft threads (13) woven on both sides of the intermediate layer, and extension threads (14) sewn on the intersections of the warp threads and the weft threads, wherein the extension threads (14) are sewn on the non-woven fabrics (2) on both sides.

3. A highly waterproof composite nonwoven fabric according to claim 2, characterized in that: The waterproof membrane (6) is provided with a plurality of air holes (7).

4. The highly waterproof composite nonwoven fabric according to claim 3, characterized in that: A fleece layer (8) is bonded to the non-woven fabric on the side of the reinforcing layer (1) away from the waterproof layer (3).

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