Spunlace non-woven fabric capable of inhibiting reverse osmosis

Abstract

The spunlace non-woven fabric comprises a first non-woven fabric layer and a second non-woven fabric layer, the first non-woven fabric layer is arranged above the second non-woven fabric layer, first lines are arranged on the top face of the first non-woven fabric layer in an inward concave mode, and second lines are arranged on the top face of the second non-woven fabric layer in an inward concave mode. The first lines comprise first flow guide grooves distributed at intervals and second flow guide grooves intersecting with the first flow guide grooves, drainage holes located in the intersection points of the first flow guide grooves and the second flow guide grooves are formed in the first non-woven fabric layer, and second lines are concavely arranged on the top face of the second non-woven fabric layer. The second lines comprise third flow guide grooves distributed at intervals and fourth flow guide grooves intersecting with the third flow guide grooves, and the intersection points of the third flow guide grooves and the fourth flow guide grooves are located below the drainage holes. According to the spunlace non-woven fabric capable of inhibiting reverse osmosis, the downward flow guide effect is improved, and the reverse osmosis problem is inhibited.

Description

Technical Field

[0001] This utility model relates to the field of spunlace nonwoven fabrics, and in particular to a spunlace nonwoven fabric that inhibits backflow. Background Technology

[0002] Spunlace nonwoven fabric is soft and comfortable, has good water absorption and breathability, so it is commonly used in the surface layer of sanitary napkins and diapers.

[0003] Sanitary napkins and diapers, as absorbent products, need to absorb menstrual blood and urine. The surface layer allows these fluids to permeate into the absorbent core, which uses wood pulp and superabsorbent polymer (SAP) particles to absorb and lock in the liquid. However, during use, if the flow of menstrual blood and urine is heavy and rapid, the absorbent core may not be able to absorb the liquid quickly enough, leading to backflow. This backflow of liquid onto the surface layer affects its breathability and dryness, increasing discomfort. Improvements are needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a spunlace nonwoven fabric that inhibits backflow, improves the flow guiding effect, and suppresses the problem of backflow.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A hydroentangled nonwoven fabric for inhibiting backflow includes: a first nonwoven layer and a second nonwoven layer. The first nonwoven layer is disposed above the second nonwoven layer. The top surface of the first nonwoven layer is recessed and has a first texture. The first texture includes a first guide groove spaced apart and a second guide groove intersecting with the first guide groove. A drainage hole is disposed on the first nonwoven layer at the intersection of the first guide groove and the second guide groove. The top surface of the second nonwoven layer is recessed and has a second texture. The second texture includes a third guide groove spaced apart and a fourth guide groove intersecting with the third guide groove. The intersection of the third guide groove and the fourth guide groove is located below the drainage hole.

[0007] The first nonwoven layer and the second nonwoven layer are respectively made of spunlace nonwoven fabric.

[0008] The first nonwoven fabric layer and the second nonwoven fabric layer are provided with an array of dot-shaped adhesives.

[0009] The drainage hole adopts a conical hole structure that penetrates the thickness direction of the first nonwoven fabric layer, and the diameter of the end of the drainage hole located on the top surface of the first nonwoven fabric layer is larger than the diameter of the end located on the bottom surface of the first nonwoven fabric layer.

[0010] The projection of the third guide channel on the plane is not parallel to the projections of the first guide channel and the second guide channel on the plane.

[0011] The projection of the fourth guide channel on the plane is not parallel to the projections of the first guide channel and the second guide channel on the plane.

[0012] The angle between the first guide channel and the second guide channel is 60° to 90°.

[0013] Among them, the first guide channel, the second guide channel, the third guide channel and the fourth guide channel are all straight channels.

[0014] The beneficial effects of this utility model are as follows: A spunlace nonwoven fabric for inhibiting backflow is specially designed with a first texture. The first and second guide channels are intersected to disperse the liquid on a plane, allowing more drainage holes to participate in the drainage and increasing the rate at which the liquid seeps through the first nonwoven fabric layer. The third and fourth guide channels in the second texture further disperse the liquid from the drainage holes on a plane, improving the seepage effect through the second nonwoven fabric layer and reducing the liquid's residence time on the first nonwoven fabric layer. The design of the third and fourth guide channels increases the redundancy capacity, allowing the liquid to be temporarily stored in the second texture during backflow, reducing the impact on the first nonwoven fabric layer. Combined with the drainage hole design, the problem of backflow is effectively suppressed. Attached Figure Description

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

[0016] Figure 2 yes Figure 1 Top view of the first nonwoven fabric layer;

[0017] Figure 3 yes Figure 1 Top view of the second nonwoven layer in the middle;

[0018] Figure 4 yes Figure 2 A magnified view of part A in the middle. Detailed Implementation

[0019] The following is combined Figures 1 to 4 The technical solution of this utility model will be further illustrated through specific embodiments.

[0020] like Figure 1 The spunlace nonwoven fabric shown for inhibiting backflow includes: a first nonwoven layer 1 and a second nonwoven layer 2. The first nonwoven layer 1 is disposed above the second nonwoven layer 2. In this embodiment, the first nonwoven layer 1 and the second nonwoven layer 2 are respectively made of spunlace nonwoven fabric. Pure cotton spunlace nonwoven fabric can be used, which is soft, comfortable and breathable.

[0021] To prevent the separation of the first nonwoven fabric layer 1 and the second nonwoven fabric layer 2, an array of dot-shaped adhesive is provided between the first nonwoven fabric layer 1 and the second nonwoven fabric layer 2. This not only strengthens the connection between the first nonwoven fabric layer 1 and the second nonwoven fabric layer 2, but also does not affect the air permeability and flow guiding effect of the first nonwoven fabric layer 1 and the second nonwoven fabric layer 2.

[0022] like Figure 2 As shown, a first texture is recessed on the top surface of the first nonwoven fabric layer 1. The first texture includes a first guide groove 11 spaced apart and a second guide groove 12 intersecting with the first guide groove 11. In this embodiment, the angle between the first guide groove 11 and the second guide groove 12 is 60 to 90°, forming a grid pattern with good aesthetics.

[0023] like Figure 4 As shown, a drain hole 13 is provided on the first nonwoven fabric layer 1 at the intersection of the first guide channel 11 and the second guide channel 12. The liquid is dispersed on the plane by the intersecting first guide channel 11 and the second guide channel 12, allowing more drain holes 13 to participate in the drainage, which helps to increase the rate at which the liquid seeps down through the first nonwoven fabric layer 1.

[0024] In this embodiment, the drain hole 13 adopts a conical hole structure that penetrates the thickness direction of the first nonwoven fabric layer 1, and the diameter of the end of the drain hole 13 located on the top surface of the first nonwoven fabric layer 1 is larger than the diameter of the end located on the bottom surface of the first nonwoven fabric layer 1. The structure of being larger at the top and smaller at the bottom is beneficial to improving the downward guiding effect and effectively suppressing the problem of backflow.

[0025] A second texture is provided recessed on the top surface of the second nonwoven fabric 2, such as... Figure 3 As shown, the second texture includes a third guide channel 21 spaced apart and a fourth guide channel 22 intersecting with the third guide channel 21. In this embodiment, the intersection of the third guide channel 21 and the fourth guide channel 22 is located below the drain hole 13. The third guide channel 21 and the fourth guide channel 22 in the second texture disperse the liquid from the drain hole 13 on the plane for the second time, improving the effect of liquid seepage through the second non-woven fabric layer 2, reducing the liquid's residence on the first non-woven fabric layer 1, and increasing the redundant capacity by using the design of the third guide channel and the fourth guide channel. The liquid can be temporarily stored in the second texture during liquid backflow, reducing the impact on the first non-woven fabric layer 1.

[0026] In this embodiment, the first guide channel 11, the second guide channel 12, the third guide channel 21 and the fourth guide channel 22 are all straight channels, which have a good guiding effect on the plane.

[0027] like Figure 2 and Figure 3As shown, the projection of the third guide channel 21 on the plane is not parallel to the projections of the first guide channel 11 and the second guide channel 12 on the plane, and the projection of the fourth guide channel 22 on the plane is not parallel to the projections of the first guide channel 11 and the second guide channel 12 on the plane. The intersecting design improves the uniformity of liquid distribution during the seepage process.

[0028] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A water-jet nonwoven fabric for suppressing reverse osmosis, characterized by comprising a water-soluble polymer and a water-soluble surfactant. The application relates to a non-woven fabric, which comprises: a first non-woven fabric layer and a second non-woven fabric layer, the first non-woven fabric layer is arranged above the second non-woven fabric layer, a first pattern is arranged in the top surface of the first non-woven fabric layer, the first pattern comprises first flow guide grooves and second flow guide grooves intersecting the first flow guide grooves, and flow discharge holes are arranged on the first non-woven fabric layer at the intersection points of the first flow guide grooves and the second flow guide grooves; a second pattern is arranged in the top surface of the second non-woven fabric layer, the second pattern comprises third flow guide grooves and fourth flow guide grooves intersecting the third flow guide grooves, and the intersection points of the third flow guide grooves and the fourth flow guide grooves are located below the flow discharge holes.

2. The water-jet nonwoven fabric according to claim 1, wherein The first non-woven fabric layer and the second non-woven fabric layer are respectively made of spunlace non-woven fabric.

3. The water-jet nonwoven fabric according to claim 1, wherein Point-shaped adhesive is arranged between the first non-woven fabric layer and the second non-woven fabric layer in an array distribution.

4. The water-jet nonwoven fabric according to claim 1, wherein The flow discharge hole is in a conical hole structure penetrating through the thickness direction of the first non-woven fabric layer, and the diameter of one end of the flow discharge hole located on the top surface of the first non-woven fabric layer is larger than the diameter of the other end located on the bottom surface of the first non-woven fabric layer.

5. The water-jet nonwoven fabric according to claim 1, wherein The projection of the third flow guide groove on a plane is not parallel to the projection of the first flow guide groove and the second flow guide groove on the plane.

6. The water-jet nonwoven fabric according to claim 1, wherein The projection of the fourth flow guide groove on a plane is not parallel to the projection of the first flow guide groove and the second flow guide groove on the plane.

7. The water-jet nonwoven fabric according to claim 1, wherein The included angle between the first flow guide groove and the second flow guide groove is 60-90 degrees.

8. The water-jet nonwoven fabric according to claim 1, wherein The first flow guide groove, the second flow guide groove, the third flow guide groove and the fourth flow guide groove are straight grooves.

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