Porous non-woven fabric

Abstract

The utility model relates to the technical field of porous non-woven fabrics, in particular to a porous non-woven fabric, which comprises a non-woven fabric layer, a fixing tube, a cotton piece and an edge covering layer, the bottom end of the non-woven fabric layer is fixedly connected with a yarn layer, the bottom end of the yarn layer is fixedly connected with a polyester fiber layer, the bottom end of the polyester fiber layer is fixedly connected with a cotton cloth layer, and the cotton cloth layer is fixedly connected with the fixing tube. The top end of the non-woven fabric layer is provided with a hole penetrating through the non-woven fabric layer, a fixing groove is formed in the hole, a fixing pipe is arranged in the fixing groove, and a containing groove is formed in the fixing pipe. Particularly, after the yarn layer and the polyester fiber layer are added, the possibility of deformation and breakage of the porous non-woven fabric can be greatly reduced when the porous non-woven fabric filters high-flow-rate and high-pressure air.

Description

Technical Field

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

[0002] Porous non-woven fabric is a special type of non-woven fabric. It has a larger pore structure, which gives it advantages in air permeability and liquid permeability. Porous non-woven fabrics are usually used in filter materials, medical supplies, protective clothing and other fields. Due to its good air permeability and permeability, porous non-woven fabrics are used as manufacturing materials for surgical gowns, masks, surgical towels and other products in the medical and health field to provide good comfort and protection. In addition, porous non-woven fabrics can also be used in filtering equipment such as air conditioning filters, water treatment filters, and automotive air filters to remove impurities and particulate matter in the air or liquid.

[0003] When porous non-woven fabrics are used to make filter materials for air filter equipment, the tear resistance of the non-woven fabrics is poor. When filtering air at high flow rate and high pressure, they are easy to break. Secondly, the interior of the non-woven fabric lacks a device for absorbing and drying moisture in the air. Finally, the edges of the non-woven fabrics have no edge protection facilities. During use, the edges of the non-woven fabrics that lack protection are prone to damage. Therefore, a porous non-woven fabric is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a porous non-woven fabric to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A porous non-woven fabric comprises a non-woven fabric layer, a fixing tube, a cotton piece and an edge layer, wherein the bottom end of the non-woven fabric layer is fixedly connected to a yarn layer, the bottom end of the yarn layer is fixedly connected to a polyester fiber layer, the bottom end of the polyester fiber layer is fixedly connected to a cotton fabric layer, the top end of the non-woven fabric layer is provided with a hole penetrating the non-woven fabric layer, the inside of the hole is provided with a fixing groove, the inside of the fixing groove is provided with a fixing tube, the inside of the fixing tube is provided with a receiving groove, the inside of the receiving groove is provided with a cotton piece, the outside of the cotton piece is fixedly connected to a connecting ring, the top end of the non-woven fabric layer is fixedly connected to a convex plate near the edge, and the inside of the edge layer is provided with sliding grooves on the upper and lower sides.

[0007] Preferably, the hole runs through the entire non-woven fabric, and two fixing grooves symmetrically arranged along the center line of the hole are provided inside the hole.

[0008] Preferably, the size of the fixing groove is larger than the size of the fixing tube, and the fixing tube fits tightly inside the fixing groove.

[0009] Preferably, the height of the accommodating groove is greater than the thickness of the connecting ring, the diameter of the connecting ring is greater than the inner diameter of the fixing tube, and the diameter of the fixing tube is smaller than the diameter of the accommodating groove.

[0010] Preferably, the convex plate is in the shape of an elongated strip, the size of the slide groove is larger than the size of the convex plate, and the edging layer slides on the outer side of the convex plate through the slide groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the present invention, the tear resistance of the porous non-woven fabric can be improved by providing a non-woven fabric layer, a yarn layer, a polyester fiber layer and a cotton fabric layer. In particular, after adding the yarn layer and the polyester fiber layer, the possibility of deformation and rupture of the porous non-woven fabric when filtering high-flow rate and high-pressure air can be greatly reduced;

[0013] 2. In the utility model, the holes, fixed grooves, fixed tubes, containing grooves, cotton sheets and connecting rings are provided to dry the air passing through, remove moisture from the air, dry the air, and prevent moisture in the air from affecting subsequent facilities;

[0014] 3. In the utility model, the convex plate, the edging layer and the slide groove are provided, so that the edging layer which plays a protective role can be fixed at the outer edge of the non-woven fabric. The edging layer wraps and partitions the edge of the non-woven fabric, thereby preventing the edge of the porous non-woven fabric from being deformed and broken after being affected by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a half-section schematic diagram of the porous nonwoven fabric structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the cotton sheet structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the edge layer structure of the utility model;

[0019] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at point A.

[0020] In the figure: 1. non-woven fabric layer; 2. yarn layer; 3. polyester fiber layer; 4. cotton fabric layer; 5. holes; 6. fixing groove; 7. fixing tube; 8. receiving groove; 9. cotton sheet; 10. connecting ring; 11. convex plate; 12. edging layer; 13. slide groove. DETAILED DESCRIPTION

[0021] 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.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A porous non-woven fabric comprises a non-woven fabric layer 1, a fixing tube 7, a cotton piece 9 and an edge layer 12, wherein the bottom end of the non-woven fabric layer 1 is fixedly connected to a yarn layer 2, the bottom end of the yarn layer 2 is fixedly connected to a polyester fiber layer 3, the bottom end of the polyester fiber layer 3 is fixedly connected to a cotton fabric layer 4, the top end of the non-woven fabric layer 1 is provided with a hole 5 penetrating the non-woven fabric layer 1, the inside of the hole 5 is provided with a fixing groove 6, the inside of the fixing groove 6 is provided with a fixing tube 7, the inside of the fixing tube 7 is provided with a receiving groove 8, the inside of the receiving groove 8 is provided with a cotton piece 9, the outside of the cotton piece 9 is fixedly connected to a connecting ring 10, the top end of the non-woven fabric layer 1 is fixedly connected to a convex plate 11 near the edge, and the inside of the edge layer 12 is provided with slide grooves 13 on the upper and lower sides.

[0026] The hole 5 runs through the entire non-woven fabric, and two fixing grooves 6 are symmetrically arranged along the center line of the hole 5. The size of the fixing groove 6 is larger than the size of the fixing tube 7, and the fixing tube 7 fits tightly inside the fixing groove 6. The height of the receiving groove 8 is larger than the thickness of the connecting ring 10, the diameter of the connecting ring 10 is larger than the inner diameter of the fixing tube 7, and the diameter of the fixing tube 7 is smaller than the diameter of the receiving groove 8. The convex plate 11 is long and narrow, and the size of the slide groove 13 is larger than the size of the convex plate 11. The edging layer 12 slides on the outside of the convex plate 11 through the slide groove 13.

[0027] Working process: When the porous non-woven fabric is used in the air filtration equipment, it plays the role of filtering the air. When the porous non-woven fabric is used as a filter material, due to its poor tear resistance, the porous non-woven fabric will break during filtering. There is a lack of materials to increase the tear resistance, and there is a lack of air drying treatment devices. In the utility model, the bottom end of the non-woven fabric layer 1 has a yarn layer 2, the bottom end of the yarn layer 2 has a polyester fiber layer 3, the bottom end of the polyester fiber layer 3 has a cotton cloth layer 4, and the hole 5 runs through the entire porous non-woven fabric, and the inside of the hole 5 also serves to accommodate dry The fixing groove 6 of the device, the fixing tube 7 is fixed inside the fixing groove 6, the fixing tube 7 has a receiving groove 8 inside, the cotton sheet 9 is fixed in the receiving groove 8 through a connecting ring 10, the top of the non-woven fabric layer 1 and the bottom of the cotton fabric layer 4 are fixedly connected with a convex plate 11, the edge layer 12 is fixed to the outside of the convex plate 11 through a slide groove 13, and the inside of the porous non-woven fabric has a yarn layer 2 and a polyester fiber layer 3. The addition of these two devices can improve the tear resistance of the porous non-woven fabric, and will not affect the air permeability and filtration of the porous non-woven fabric. The yarn layer 2 is longitudinally connected to the non-woven fabric layer 1. The porous nonwoven fabric is woven with cross-staggered yarns, which can improve the overall tear resistance of the porous nonwoven fabric. After the polyester fiber layer 3 is added, the tear resistance can be further improved. The hole 5 runs through the entire porous nonwoven fabric. Two fixing grooves 6 are arranged in one hole 5. The fixing tube 7 can be fixed in the fixing groove 6. There are three cotton sheets 9 for drying in one fixing tube 7. The cotton sheet 9 is a disc-shaped sheet with a connecting ring 10 on the outermost side. The cotton sheet 9 can be engaged in the receiving groove 8 through the connecting ring 10. The protective edge layer 12 is fixed to the porous nonwoven fabric. The outer edge, when the porous non-woven fabric is in use, the non-woven fabric layer 1 is on the innermost side, and the cotton cloth layer 4 is on the side that first contacts the air. The cotton cloth layer 4 performs preliminary filtering and drying of the air. The polyester fiber layer 3 and the yarn layer 2 improve the tear resistance of the porous non-woven fabric and can handle high-flow rate and high-pressure air. The non-woven fabric layer 1 finally filters the air, and the cotton sheet 9 in the hole 5 filters and dries the air to remove moisture from the air. The edging layer 12 is on the outermost side of the porous non-woven fabric to protect the porous non-woven fabric and prevent the edge from breaking during use.

[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0029] 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 porous non-woven fabric, comprising a non-woven fabric layer (1), a fixing tube (7), a cotton sheet (9) and an edge layer (12), characterized in that: The bottom end of the non-woven fabric layer (1) is fixedly connected to a yarn layer (2), the bottom end of the yarn layer (2) is fixedly connected to a polyester fiber layer (3), the bottom end of the polyester fiber layer (3) is fixedly connected to a cotton fabric layer (4), the top end of the non-woven fabric layer (1) is provided with a hole (5) penetrating the non-woven fabric layer (1), the hole (5) is provided with a fixing groove (6), the fixing groove (6) is provided with a fixing tube (7), the fixing tube (7) is provided with a receiving groove (8), the receiving groove (8) is provided with a cotton sheet (9), the outer side of the cotton sheet (9) is fixedly connected to a connecting ring (10), the top end of the non-woven fabric layer (1) is fixedly connected to a convex plate (11) near the edge, and the edging layer (12) is provided with sliding grooves (13) on the upper and lower sides.

2. A porous nonwoven fabric according to claim 1, characterized in that: The hole (5) runs through the entire non-woven fabric, and two fixing grooves (6) are provided inside the hole (5) and are symmetrically arranged along the center line of the hole (5).

3. The porous nonwoven fabric according to claim 1, characterized in that: The size of the fixing groove (6) is larger than the size of the fixing tube (7), and the fixing tube (7) fits tightly inside the fixing groove (6).

4. The porous nonwoven fabric according to claim 1, characterized in that: The height of the accommodating groove (8) is greater than the thickness of the connecting ring (10), the diameter of the connecting ring (10) is greater than the inner diameter of the fixing tube (7), and the diameter of the fixing tube (7) is smaller than the diameter of the accommodating groove (8).

5. The porous nonwoven fabric according to claim 1, characterized in that: The convex plate (11) is in the shape of an elongated strip, the size of the slide groove (13) is larger than the size of the convex plate (11), and the edge layer (12) slides on the outer side of the convex plate (11) through the slide groove (13).

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