Nonwoven fabric having stripe-shaped protrusions on the surface and absorbent article thereof

Abstract

The present invention has a plurality of stripe-shaped protrusions extending in the longitudinal direction and distributed in the transverse direction on the surface. The height of the stripe-shaped protrusions is 0.5 mm to 3.0 mm. The aperture region formed between adjacent stripe-shaped protrusions has a plurality of apertures, and the average area of a single aperture is less than 20 mm 2 2. Disclosed are a non-woven fabric having stripe-shaped protrusions on the surface and an absorbent article thereof, wherein the stripe-shaped protrusions in the longitudinal direction on the surface of the non-woven fabric can guide body fluid in the longitudinal direction of the absorbent article, expand the penetration area of the body fluid, increase the downward penetration speed of the body fluid, and effectively prevent the occurrence of lateral leakage of the body fluid.

Description

Technical Field

[0001] The present invention relates to the field of non-woven fabrics, and particularly to a non-woven fabric having a striped protrusion on a soft and smooth surface for personal care and baby care, and an absorbent article thereof.

Background Art

[0002] Non-woven fabrics are widely used in the surface layer of disposable hygiene products because they are soft and skin-friendly, and have attracted the attention of consumers. As consumers' requirements for hygiene products increase, consumers are no longer satisfied with conventional flat non-woven fabrics. Accordingly, perforated non-woven fabrics for improving penetration performance have emerged. Due to the surface apertures, the penetration performance of body fluids can be effectively improved, the body fluids can be quickly guided to the absorption layer, and the dryness of the hygiene surface layer can be improved. The patent named CN201420140109.0 is a non-woven fabric having a striped protrusion on the surface. In this patent, a protrusion region, a depression region, and an aperture structure are distributed. Due to the pressure resistance performance of the high-density fiber region, the remarkable uneven effect of the three-dimensional non-woven fabric is maintained. Since the protrusion part and the aperture part have a height difference of 0.2 mm or more, even if the liquid returns to the surface of the depression part, only the protrusion part contacts the user's skin, and the user does not have a wet feeling. The aperture part accelerates the penetration of the liquid and reduces the residue, and discloses a three-dimensional non-woven fabric having an aperture structure with the effects of fast penetration and a smooth and comfortable feeling. However, the arrangement of the protrusion part and the aperture part is inappropriate, and the protrusion part is likely to cause liquid leakage and liquid residue.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention provides a non-woven fabric having a striped protrusion on a soft and smooth surface and an absorbent article thereof, and aims to solve the drawbacks of existing products.

Means for Solving the Problems

[0004] The solution means of the present invention is to achieve the above object, On the surface, there are a plurality of stripe-shaped protrusions extending in the longitudinal direction and distributed in the transverse direction. The height of the stripe-shaped protrusions is 0.5 mm to 3.0 mm. The aperture region formed between adjacent stripe-shaped protrusions has a plurality of apertures, and the average area of a single aperture is less than 20 mm 2 It is a non-woven fabric having stripe-shaped protrusions on the surface.

[0005] The non-woven fabric is a composite non-woven fabric composed of a surface layer and a bottom layer.

[0006] The stripe-shaped protrusions are located on the surface layer of the composite non-woven fabric.

[0007] The non-woven fabric is an air-through non-woven fabric, a spunbond non-woven fabric, a spunlace non-woven fabric or a thermal bond non-woven fabric.

[0008] The stripe-shaped protrusions are continuous stripe-shaped protrusions in the longitudinal direction or intermittent stripe-shaped protrusions in the longitudinal direction.

[0009] The stripe-shaped protrusions are solid stripe-shaped protrusions or hollow stripe-shaped protrusions.

[0010] The aperture region has a plurality of protrusions.

[0011] It includes a liquid-permeable surface layer, an absorption layer, and a breathable bottom layer. The absorption layer is provided between the liquid-permeable surface layer and the breathable bottom layer. The liquid-permeable surface layer of the absorbent article is composed of the non-woven fabric having stripe-shaped protrusions on the surface, and the absorbent article includes the non-woven fabric having stripe-shaped protrusions on the surface.

Advantages of the Invention

[0012] After adopting the above technical solution, the non-woven fabric according to the present invention has strip-shaped protrusions on its surface. When applied to the surface layer of an absorbent article, the strip-shaped protrusions not only reduce the contact area between the surface layer of the absorbent article and the human body, but also form an air flow blocking layer between the human body and the absorbent article, effectively preventing adhesion to the skin and giving people a soft and comfortable feeling. The longitudinal strip-shaped protrusions can guide body fluids in the longitudinal direction of the absorbent article, expand the penetration area of body fluids, increase the downward penetration speed of body fluids, and effectively prevent the occurrence of lateral leakage of body fluids. The opening area between adjacent strip-shaped protrusions can accelerate the downward penetration of body fluids, and the body fluids are quickly absorbed by the core through the openings, improving the dry performance of the non-woven fabric.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0014] Hereinafter, in order to further explain the technical solution of the present invention, the present invention will be described in detail with specific examples.

[0015] Example 1 As shown in FIGS. 1 and 2, the non-woven fabric 1 with strip-shaped protrusions on the surface according to this example has a plurality of strip-shaped protrusions a1 extending in the longitudinal direction and distributed in the lateral direction on the surface, and has an opening area composed of a plurality of openings b1 between adjacent strip-shaped protrusions a1.

[0016] In this embodiment, the non-woven fabric 1 having stripe-shaped protrusions on the surface is a single-layer air-through non-woven fabric. The stripe-shaped protrusions a1 are solid and continuous stripe-shaped protrusions. The height of the protrusions is 0.5 to 3.0 mm. If it is too high, the comfort is poor. If it is too low, it cannot play the role of blocking body fluids. Therefore, in this embodiment, the height of the protrusions of the stripe-shaped protrusions a1 is 0.8 mm, the width of adjacent stripe-shaped protrusions is 0.5 to 8 mm, and the average opening area of a single opening in the opening region is 20 mm 2 It may be less than that. In this embodiment, the average opening area of a single opening b1 is 15 mm 2 It is.

[0017] After adopting the above configuration, the non-woven fabric in this embodiment has stripe-shaped protrusions a1 on the surface. When applied to the surface layer of the absorbent article, it is a continuous solid protrusion formed by the stripe-shaped protrusions a1. The protrusion part is not easily crushed. The longitudinal stripe-shaped protrusions a1 can guide body fluids in the longitudinal direction of the absorbent article, expand the penetration area of body fluids, and increase the downward penetration speed of body fluids. It can also effectively prevent the occurrence of lateral leakage of body fluids. The distribution between each adjacent stripe-shaped protrusion a1 may be an equidistant distribution or a non-equidistant distribution, and can be adjusted according to the width of the absorbent article. The opening region between adjacent stripe-shaped protrusions a1 can speed up the downward penetration of body fluids, and the body fluids are quickly absorbed by the core through the openings b1, improving the dry performance of the non-woven fabric.

[0018] Example 2 As shown in FIGS. 3 and 4, the non-woven fabric 2 having stripe-shaped protrusions on the surface of this embodiment has a plurality of stripe-shaped protrusions a2 extending in the longitudinal direction and distributed in the transverse direction on the surface, and has an opening region composed of a plurality of openings b2 between adjacent stripe-shaped protrusions a2.

[0019] In this embodiment, the non-woven fabric 2 having striped protrusions on the surface is a composite non-woven fabric composed of a surface layer 21 and a bottom layer 22. The surface layer 21 is a spunlace non-woven fabric, and the bottom layer 22 is an air-through non-woven fabric. The striped protrusion a2 is a hollow and intermittent striped protrusion, and the height of the protrusion is 0.5 to 3.0 mm. In this embodiment, the height of the protrusion of the striped protrusion a2 is 2.5 mm. The average opening area of a single opening in the opening region may be less than 20 mm 2 and, in this embodiment, the average opening area of a single opening b2 is 10 mm 2 .

[0020] After adopting the above solution, in this embodiment, the striped protrusion a2 is a hollow and intermittent striped protrusion. When used to absorb products, the hollow structure of the protrusion is formed by the surface layer 21 and the bottom layer 22, forming a ventilation passage, providing an internal and external circulation of air flow, and reducing the stuffy feeling. Due to the skin care characteristics of the spunlace non-woven fabric of the surface layer 21, the soft comfort of the whole non-woven fabric can be improved. Due to the supporting action of the bottom layer 22, it can prevent the protrusion part from being pressed, prevent the passage from being blocked and crushed. At the same time, the striped protrusion a2 can also guide the body fluid in the longitudinal direction of the absorbent article, expand the penetration area of the body fluid, speed up the downward penetration speed of the body fluid, and effectively prevent the lateral leakage of the body fluid.

[0021] Example 3 The absorbent article 4 including the nonwoven fabric 3 having stripe-shaped protrusions on the surface in this embodiment includes a liquid-permeable surface layer, an absorbent layer, and a breathable bottom layer as shown in FIG. 5. The absorbent layer is provided between the liquid-permeable surface layer and the breathable bottom layer. The liquid-permeable surface layer of the absorbent article is made of the nonwoven fabric 3 having stripe-shaped protrusions on the surface. The intermediate region of the absorbent article is a penetration region, which is mainly used to contact the human body and absorb body fluids. The both side regions are the wing parts of the absorbent article, which are mainly used to fix the absorbent article. The stripe-shaped protrusions a3 of the nonwoven fabric having stripe-shaped protrusions on the surface are located on both sides of the penetration region of the absorbent article 4, forming a three-dimensional barrier to effectively prevent the lateral leakage of body fluids. By including a plurality of stripe-shaped protrusions a3 in the penetration region of the absorbent article, not only can the lateral leakage be prevented, but also the body fluids can be induced in the longitudinal direction to expand the longitudinal penetration region of the body fluids and improve the effective utilization area of the absorbent article. The intermediate penetration region of the absorbent article 4 is an aperture region composed of a plurality of apertures b3 and protrusions c3 located between adjacent stripe-shaped protrusions 3. The apertures b3 can accelerate the penetration of body fluids into the absorbent layer and the downward penetration speed. The protrusions c3 can reduce the contact area between the absorbent article and the human body, prevent adhesion to the skin, and further improve the dryness.

[0022] The above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention thereby. That is, equivalent changes and modifications made based on the scope of the present invention and the content of the specification all belong to the scope of the present invention.

Explanation of reference numerals

[0023] Example 1: 1 Nonwoven fabric having stripe-shaped protrusions on the surface, a1 Stripe-shaped protrusions, b1 Apertures Example 2: 2 Nonwoven fabric having stripe-shaped protrusions on the surface, 21 Surface layer, 22 Bottom layer, a2 Stripe-shaped protrusions, b2 Apertures, c2 Internal space Example 3: 3 Nonwoven fabric having stripe-shaped protrusions on the surface, 4 Absorbent article, a3 Stripe-shaped protrusions, b3 Apertures, c3 Protrusions

Claims

Claim 1 The surface has a plurality of stripe-shaped protrusions that extend longitudinally and are distributed horizontally. The height of the stripe-shaped protrusions is 0.5 mm to 3.0 mm. The aperture region formed between adjacent stripe-shaped protrusions has a plurality of apertures, and the average area of a single aperture is less than 20 mm ２ A non-woven fabric having stripe-shaped protrusions on the surface, characterized in that it is less than. Claim 2 The nonwoven fabric according to claim 1, wherein the nonwoven fabric is a composite nonwoven fabric including a surface layer and a bottom layer, and has striped protrusions on the surface. Claim 3 The nonwoven fabric according to claim 2, wherein the striped protrusions are located on the surface layer of the composite nonwoven fabric and has striped protrusions on the surface. Claim 4 The nonwoven fabric according to claim 1, wherein the apertured region has a plurality of protrusions and has striped protrusions on the surface. Claim 5 The nonwoven fabric according to claim 1, wherein the nonwoven fabric is an air-through nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric or a thermal bond nonwoven fabric and has striped protrusions on the surface. Claim 6 The nonwoven fabric according to claim 1, wherein the striped protrusions are continuous striped protrusions in the longitudinal direction or intermittent striped protrusions in the longitudinal direction and has striped protrusions on the surface. Claim 7 The nonwoven fabric according to claim 1, wherein the striped protrusions are solid striped protrusions or hollow striped protrusions and has striped protrusions on the surface. Claim 8 An absorbent article including a liquid-permeable surface layer, an absorbent layer, and a breathable bottom layer, wherein the absorbent layer is provided between the liquid-permeable surface layer and the breathable bottom layer. The liquid-permeable surface layer of the absorbent article is made of the nonwoven fabric having striped protrusions on the surface according to any one of claims 1 to 4, and the absorbent article includes the nonwoven fabric having striped protrusions on the surface.

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