Double-layer non-woven fabric
By designing a double-layer nonwoven fabric structure, with a high-density surface layer featuring through-holes and a low-density inner layer with grooves, and using cotton fiber materials, the problem of insufficient strength in nonwoven fabrics is solved, thereby improving moisture retention, breathability, and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-27
AI Technical Summary
While existing non-woven fabrics offer good breathability, they lack sufficient strength, resulting in a short lifespan when used for landscaping.
Design a double-layer nonwoven fabric with a high-density surface layer and through-holes, and a low-density inner layer with grooves. The fabric is made of cotton fiber and the surface and inner layers are formed by needle punching and hot pressing to increase air circulation and strength.
It improves the moisture retention and breathability of non-woven fabrics, enhances plant permeability, avoids localized decreases in breathability, and extends service life.
Smart Images
Figure CN224044752U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of non - woven fabric more specifically, it relates to a double -layer non - woven fabric. BACKGROUND
[0002] Non - woven fabric is a kind of fabric formed without spinning and weaving, just the short fiber or filament of weaving is arranged in orientation or randomness, forms web structure, then is consolidated by mechanical, thermal bonding or chemistry etc., and non - woven fabric has low cost, fast production, easy to process, has been widely applied in multiple fields, when laying green, by covering non - woven fabric, both can preserve soil and water before the plant grows, also do not affect the growth of plant, in order to ensure that non - woven fabric can have enough air permeability and ensure that the plant germination can penetrate non - woven fabric, will reduce the density of non - woven fabric, however this can lead to the strength of non - woven fabric to decline. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims at providing a double -layer non - woven fabric.
[0004] The above technical purpose of the utility model is realized by the following technical scheme: a double -layer non - woven fabric, including inner layer and surface layer, the surface layer is provided with a plurality of through -holes, the density of the surface layer is greater than the density of the inner layer, the side of the inner layer close to the surface layer is provided with a plurality of grooves.
[0005] The utility model is further provided as follows: the through -hole is rectangular array on the surface layer, the width of the groove is greater than the pitch of the through -hole.
[0006] The utility model is further provided as follows: the groove includes mutually perpendicular longitudinal groove and transverse groove.
[0007] The utility model is further provided as follows: the width of the longitudinal groove is same with the width of the transverse groove.
[0008] The utility model is further provided as follows: the thickness of the surface layer is less than the thickness of the inner layer.
[0009] The utility model is further provided as follows: the surface layer and the inner layer are all made of cotton fiber silk.
[0010] The utility model has the following beneficial effects in the light of the above description: cotton fiber silk has good moisturizing capacity, improves the moisturizing property of non - woven fabric, the density of the inner layer is lower, has good air permeability and is easily penetrated by plant, the through -hole on the surface layer ensures the air circulation of the both sides of the surface layer, and provides space for the growth of plant, the groove formed by hot pressing on the surface of the inner layer increases the air flow between the surface layer and the inner layer, avoids the decline of local air permeability due to blockage, the surface layer has higher density, and then improves the service life of non - woven fabric. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the inner layer structure in this utility model.
[0013] In the diagram: 1. Inner layer; 2. Outer layer; 3. Through hole; 4. Longitudinal groove; 5. Transverse groove. Detailed Implementation
[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0015] Example: A double-layer nonwoven fabric, such as Figure 1 , Figure 2 As shown, the nonwoven fabric includes an inner layer 1 and an outer layer 2. The outer layer 2 has several through-holes 3. The density of the outer layer 2 is greater than that of the inner layer 1. The inner layer 1 has several grooves on the side closest to the outer layer 2. The thickness of the outer layer 2 is less than that of the inner layer 1. Both the outer layer 2 and the inner layer 1 are made of cotton fibers, specifically formed by needle punching and hot pressing. Cotton fibers have good moisture retention, improving the moisture retention of the nonwoven fabric. The inner layer 1 has a lower density, providing good air permeability and easy penetration by plants. The through-holes 3 on the outer layer 2 ensure airflow on both sides of the outer layer 2 and provide space for plant growth. The grooves formed by hot pressing on the surface of the inner layer 1 increase airflow between the outer layer 2 and the inner layer 1, preventing localized decreases in air permeability due to blockage. The outer layer 2 has a higher density, thus improving the service life of the nonwoven fabric.
[0016] like Figure 1 , Figure 2 As shown, through holes 3 are arranged in a rectangular array on the surface layer 2. The width of the groove is greater than the spacing of the through holes 3. The groove includes mutually perpendicular longitudinal grooves 4 and transverse grooves 5. The width of the longitudinal grooves 4 is the same as the width of the transverse grooves 5. Specifically, the through holes 3 are square, and the side length of the through holes 3 is less than the width of the groove. The width of the groove is greater than the spacing of the through holes 3, which increases the number of through holes 3 connected to the groove. The intersecting longitudinal grooves 4 and transverse grooves 5 ensure smooth airflow between the surface layer 2 and the inner layer 1. The longitudinal grooves 4 and transverse grooves 5 have the same width and the same spacing, which ensures that the strength of the nonwoven fabric is relatively uniform in the longitudinal and transverse directions.
[0017] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A double-layer nonwoven fabric, characterized by: It comprises an inner layer (1) and a surface layer (2), a plurality of through holes (3) are arranged on the surface layer (2), the density of the surface layer (2) is greater than that of the inner layer (1), and a plurality of grooves are arranged on the side of the inner layer (1) close to the surface layer (2).
2. The double-layer nonwoven fabric according to claim 1, characterized by: The through holes (3) are arranged in a rectangular array on the surface layer (2), and the width of the groove is greater than the spacing of the through holes (3).
3. The double-layered nonwoven fabric according to claim 1, wherein: The groove comprises a longitudinal groove (4) and a transverse groove (5) perpendicular to each other.
4. The double-layered nonwoven fabric according to claim 3, wherein: The width of the longitudinal groove (4) is the same as that of the transverse groove (5).
5. The double-layered nonwoven fabric according to claim 1, wherein: The thickness of the surface layer (2) is less than that of the inner layer (1).
6. The double-layered nonwoven fabric according to claim 5, wherein: The surface layer (2) and the inner layer (1) are both composed of cotton fiber filaments.