Soft composite nonwoven fabric

Abstract

The utility model discloses a kind of light soft composite nonwoven fabrics, it includes nonwoven fabric main body (1);The nonwoven fabric main body (1) is sequentially hot-rolled composite from bottom to top by No. 1 softening polypropylene filament layer (2), polypropylene filament layer (3), No. 1 polypropylene melt-blown short filament layer (4), No. 2 polypropylene melt-blown short filament layer (5) and No. 2 softening polypropylene filament layer (6) constitute;No. 1 softening polypropylene filament layer (2), polypropylene filament layer (3) and No. 2 softening polypropylene filament layer (6) are all equipped with multiple array distribution's through-hole (7), the diameter of through-hole (7) is 1~3mm, the interval between adjacent through-hole (7) is 10~20mm.The utility model not only can reduce gram weight, also has the advantages that softness is better, strength is higher, filtration is better and comfort is better.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabrics, and in particular to a lightweight and soft composite nonwoven fabric. Background Technology

[0002] Nonwoven fabric is a type of fabric material that is formed by directly reinforcing fibers into a shaped fabric without the use of traditional textile weaving processes.

[0003] Common nonwoven fabric processing methods are divided into spunbond and meltblown methods. Spunbond involves melting polypropylene, drawing it into fibers, and then laying it into a web to create spunbond nonwoven fabric, which has high strength. Meltblown involves melting polypropylene, spraying it through nozzles, and then laying it into a web to create meltblown nonwoven fabric, which has good filtration performance. Some hygiene products require both high overall strength and certain filtration performance; therefore, spunbond and meltblown nonwoven fabrics are often combined. However, the resulting composite nonwoven fabric has a higher basis weight and, due to the inclusion of spunbond nonwoven fabric made of long filaments, its flexibility is relatively poor.

[0004] Therefore, existing composite nonwoven fabrics suffer from high basis weight and poor flexibility. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight and soft composite nonwoven fabric. This invention not only reduces the basis weight but also has the advantage of good softness.

[0006] The technical solution of this utility model is as follows: A lightweight and flexible composite nonwoven fabric includes a nonwoven fabric body; the nonwoven fabric body is composed of a first flexible polypropylene filament layer, a polypropylene filament layer, a first polypropylene meltblown short filament layer, a second polypropylene meltblown short filament layer, and a second flexible polypropylene filament layer, which are thermally bonded together sequentially from bottom to top; the first flexible polypropylene filament layer, the polypropylene filament layer, and the second flexible polypropylene filament layer are all provided with a plurality of through holes arranged in an array, the diameter of the through holes is 1-3 mm, and the spacing between adjacent through holes is 10-20 mm.

[0007] In the aforementioned lightweight composite nonwoven fabric, the nonwoven fabric body is provided with multiple hot-rolled and arrayed protrusions.

[0008] In the aforementioned soft composite nonwoven fabric, the protrusions and through holes are misaligned.

[0009] In the aforementioned soft composite nonwoven fabric, the height of the protrusions is 1-3 mm.

[0010] In the aforementioned soft composite nonwoven fabric, the edges of the nonwoven fabric body are provided with heat-sealed edges.

[0011] Compared with the prior art, this utility model arranges and hot-rolls together a first-layer softened polypropylene filament, a polypropylene filament, a first-layer meltblown polypropylene staple filament, a second-layer meltblown polypropylene staple filament, and a second-layer softened polypropylene filament from top to bottom to form a composite nonwoven fabric body; and uses the first-layer softened polypropylene filament and the second-layer flexible polypropylene filament (the first-layer softened polypropylene filament and the second-layer flexible polypropylene filament have better softness by adding softening masterbatch when melting their polypropylene raw materials) as the nonwoven fabric body. The top and bottom layers of the nonwoven fabric body provide both high surface strength and good softness. The filtration performance of the nonwoven fabric body is improved by setting a first polypropylene meltblown short filament layer and a second polypropylene meltblown short filament layer. Multiple arrayed through holes are provided on the first, second, and third softened polypropylene filament layers, with the diameter of the through holes being 1-3 mm and the spacing between adjacent through holes being 10-20 mm. This reduces the basis weight of the nonwoven fabric body without affecting the overall filtration performance.

[0012] In addition, in this invention, multiple arrayed protrusions are hot-pressed onto the nonwoven fabric body, with a height of 1-3mm, which gives the nonwoven fabric body a certain longitudinal elasticity, improves the comfort of use, and to a certain extent improves the composite stability of the nonwoven fabric body; the protrusions and through holes are staggered, so that there are no through holes on the surface of the protrusions, and the integrity of this part is better, and the comfort when in contact is better.

[0013] By setting heat-sealed edges on the nonwoven fabric body, the structural stability of the nonwoven fabric body is improved.

[0014] Therefore, this invention not only reduces weight, but also has the advantages of good softness, high strength, good filtration and good comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] The markings in the attached diagram are as follows: 1-Nonwoven fabric body, 2-No. 1 softened polypropylene filament layer, 3-Polypropylene filament layer, 4-No. 1 polypropylene meltblown short filament layer, 5-No. 2 polypropylene meltblown short filament layer, 6-No. 2 softened polypropylene filament layer, 7-Through hole, 8-Raised dot, 9-Heat-sealed edge. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example. A soft composite nonwoven fabric, configured as follows: Figure 1 and 2 As shown, it includes a nonwoven fabric body 1; the nonwoven fabric body 1 is composed of a first-layer flexible polypropylene filament layer 2, a polypropylene filament layer 3, a first-layer polypropylene meltblown staple filament layer 4, a second-layer polypropylene meltblown staple filament layer 5, and a second-layer flexible polypropylene filament layer 6, which are thermally rolled together from bottom to top; the first-layer flexible polypropylene filament layer 2, the polypropylene filament layer 3, and the second-layer flexible polypropylene filament layer 6 are all provided with a plurality of through holes 7 arranged in an array, the diameter of the through holes 7 is 1 to 3 mm, and the spacing between adjacent through holes 7 is 10 to 20 mm.

[0020] The nonwoven fabric body 1 is provided with a plurality of hot-rolled and arrayed protrusions 8; the protrusions 8 are staggered from the through holes 7; the height of the protrusions 8 is 1 to 3 mm.

[0021] The nonwoven fabric body 1 has a heat-sealed edge 9.

[0022] Working principle: The nonwoven fabric body 1 consists of, from top to bottom, a hot-rolled composite layer of No. 1 softened polypropylene filament 2, polypropylene filament 3, No. 1 polypropylene meltblown staple filament 4, No. 2 polypropylene meltblown staple filament 5, and No. 2 softened polypropylene filament 6. Softening masterbatch is added to the raw materials of the topmost No. 1 softened polypropylene filament layer 2 and the bottommost No. 2 softened polypropylene filament layer 6, making them relatively soft. The middle polypropylene filament layer 3 gives the whole structure a certain degree of hardness and strength. The interlayered layers of the middle No. 1 polypropylene meltblown staple filament layer 4 and No. 2 polypropylene meltblown staple filament layer 5 provide good filtration performance.

[0023] Multiple through holes 7 are arranged in an array on the No. 1 softened polypropylene filament layer 2, polypropylene filament layer 3 and No. 2 softened polypropylene filament layer 6. The diameter of the through holes 7 is 1 to 3 mm and the spacing between adjacent through holes 7 is 10 to 20 mm, so that the weight of the nonwoven fabric body is reduced by 1 gram without affecting the overall filtration performance.

[0024] Multiple arrayed protrusions 8 are hot-pressed onto the nonwoven fabric body 1. These protrusions 8 possess a certain degree of compressive elasticity, giving the nonwoven fabric body 1 a certain longitudinal elasticity, thus improving user comfort and, to some extent, enhancing the composite stability of the nonwoven fabric body 1. The protrusions 8 and through-holes 7 are staggered, eliminating through-holes on the surface of the protrusions 8, resulting in better overall integrity and greater comfort upon contact. The edges of the nonwoven fabric body 1 are heat-sealed 9, further enhancing its structural stability.

Claims

1. A lightweight and soft composite nonwoven fabric, comprising a nonwoven fabric body (1); characterized in that: The nonwoven fabric body (1) is composed of a first-layer softened polypropylene filament layer (2), a polypropylene filament layer (3), a first-layer polypropylene meltblown short filament layer (4), a second-layer polypropylene meltblown short filament layer (5), and a second-layer softened polypropylene filament layer (6) that are thermally rolled together from bottom to top. The first-layer softened polypropylene filament layer (2), the polypropylene filament layer (3), and the second-layer softened polypropylene filament layer (6) are provided with a plurality of through holes (7) arranged in an array. The diameter of the through holes (7) is 1 to 3 mm, and the spacing between adjacent through holes (7) is 10 to 20 mm.

2. The lightweight and soft composite nonwoven fabric according to claim 1, characterized in that: The nonwoven fabric body (1) is provided with multiple hot-rolled and arrayed protrusions (8).

3. The lightweight and soft composite nonwoven fabric according to claim 2, characterized in that: The protrusions (8) and the through holes (7) are misaligned.

4. The lightweight and soft composite nonwoven fabric according to claim 2, characterized in that: The height of the protrusion (8) is 1-3 mm.

5. The lightweight and soft composite nonwoven fabric according to claim 1, characterized in that: The nonwoven fabric body (1) has heat-sealed edges (9) at its edges.

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