Anti-aging polypropylene non-woven fabric

Abstract

The anti-aging polypropylene non-woven fabric comprises a first polypropylene non-woven fabric layer, a gridding cloth layer and a second polypropylene non-woven fabric layer which are compounded with one another, fibers used by the first polypropylene non-woven fabric layer and the second polypropylene non-woven fabric layer are anti-ultraviolet polypropylene fibers; and the section of the uvioresistant polypropylene fiber is flat. According to the anti-aging polypropylene non-woven fabric disclosed by the utility model, the used uvioresistant polypropylene fibers have good uvioresistant and anti-aging effects, so that the service life of the polypropylene non-woven fabric can be prolonged. And compared with a circular cross section, the flat cross section structure can reflect more light rays, so that the anti-ultraviolet effect is further improved. The used gridding cloth layer can increase the strength of the polypropylene non-woven fabric.

Description

Technical Field

[0001] The utility model relates to an anti-aging polypropylene non-woven fabric, belonging to the technical field of polypropylene non-woven fabrics. Background Art

[0002] Non-woven fabrics, also known as non-woven fabrics, are sheets, webs or pads made of directional or randomly arranged fibers that are combined with each other through friction, adhesion or bonding, or a combination of these methods. With the development of the times, according to market demand, the types of non-woven fabrics are also diverse, suitable for various places and living environments. Non-woven fabrics have the characteristics of softness, but their strength is insufficient. In many usage scenarios, such as weed-proof cloth or agricultural non-woven fabrics, they are exposed to ultraviolet rays in the air for a long time. After a period of use, ordinary polypropylene non-woven fabrics will age and be easily damaged. They have a short service life and do not have radiation protection properties. They cannot meet the diverse needs of the market. Therefore, non-woven fabrics with anti-aging properties are currently in demand. How to prepare an anti-aging polypropylene non-woven fabric has become a problem to be solved. Utility Model Content

[0003] The utility model aims to provide an anti-aging polypropylene non-woven fabric with good anti-ultraviolet effect and strong effect.

[0004] In order to solve the above technical problems, the purpose of this utility model is achieved as follows:

[0005] The utility model relates to an anti-aging polypropylene non-woven fabric, comprising a first polypropylene non-woven fabric layer, a mesh fabric layer and a second polypropylene non-woven fabric layer;

[0006] The fibers used in the first polypropylene non-woven fabric layer and the second polypropylene non-woven fabric layer are UV-resistant polypropylene fibers; and the cross-section of the UV-resistant polypropylene fibers is flat.

[0007] On the basis of the above solution and as a preferred solution of the above solution: a water repellent is attached to the surface of the UV-resistant polypropylene fiber.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a first black spunbond non-woven fabric layer is provided between the first polypropylene non-woven fabric layer and the mesh cloth layer; a second black spunbond non-woven fabric layer is provided between the mesh cloth layer and the second polypropylene non-woven fabric layer.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the fibers used in the first black spunbond non-woven fabric layer and the second black spunbond non-woven fabric layer are core-sheath structure fibers, and the core-sheath structure fibers include a core and a sheath; the core is black polypropylene, and the sheath is black polyethylene.

[0010] On the basis of the above solution and as a preferred solution of the above solution: the mesh cloth layer is woven from UV-resistant polyester filaments.

[0011] The beneficial effects of the present invention are as follows: the anti-aging polypropylene nonwoven fabric employs UV-resistant polypropylene fibers with excellent UV and aging resistance, thereby extending the service life of the polypropylene nonwoven fabric. Furthermore, the flat cross-sectional structure reflects more light than a circular cross-sectional structure, further enhancing the UV protection effect. The mesh fabric layer employed increases the strength of the polypropylene nonwoven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 1 is a schematic structural diagram of the anti-aging polypropylene non-woven fabric involved in Example 1;

[0013] Figure 2 Schematic diagram of the structure of the anti-aging polypropylene non-woven fabric involved in Example 2;

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the core-sheath structure fiber involved in Example 2.

[0015] The markings in the figure are as follows: 1-first polypropylene non-woven fabric layer; 2-mesh fabric layer; 3-second polypropylene non-woven fabric layer; 4-first black spunbond non-woven fabric layer; 5-second black spunbond non-woven fabric layer; 41-core; 42-sheath. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] Combine Figure 1 This embodiment is described in detail. The anti-aging polypropylene nonwoven fabric of this embodiment comprises a first polypropylene nonwoven fabric layer 1, a mesh fabric layer 2, and a second polypropylene nonwoven fabric layer 3. The fibers used in the first and second polypropylene nonwoven fabric layers 1 and 3 are UV-resistant polypropylene fibers; these fibers have a flat cross-section.

[0019] Specifically, the UV-resistant polypropylene fiber is made of nano-titanium dioxide and nano-zinc oxide. After the two are ground and mixed, they are modified with a silane coupling agent. A surfactant is added during the modification process to improve the modification effect and the interfacial compatibility between the nano-titanium dioxide and nano-zinc oxide powders and polypropylene, thereby improving the UV resistance. The modified nano-titanium dioxide and nano-zinc oxide are further mixed with hydrophobic nano-silicon dioxide powder. Since the hydrophobic nano-silicon dioxide surface contains organic groups, it also has good interfacial compatibility with polypropylene, making UV-resistant polypropylene. Then, UV-resistant polypropylene fiber is made in a spinning machine. Titanium dioxide, as a semiconductor, has a wide bandgap. When short-wavelength, high-energy ultraviolet rays irradiate the titanium dioxide surface, it can cause the titanium oxide to produce electronic transitions, achieving the effect of absorbing ultraviolet rays. Of course, other antioxidants can also be added to UV-resistant polypropylene fibers.

[0020] The cross section is flat, specifically rectangular. Since the surface is flat, it can reflect more light than a circular cross section, thereby further enhancing the anti-ultraviolet effect.

[0021] Specifically, a fiber mesh is made of flat anti-ultraviolet polypropylene fibers and overlapped with the mesh cloth layer 2 to form a sandwich structure with anti-ultraviolet polypropylene fiber meshes on both sides and mesh cloth in the middle. It is then reinforced with water spunlace and dried to form an anti-aging polypropylene non-woven fabric.

[0022] Furthermore, the mesh cloth layer 2 is woven from UV-resistant polyester filaments.

[0023] Example 2

[0024] The anti-aging polypropylene nonwoven fabric of this embodiment differs from that of the first embodiment in that a first black spunbond nonwoven fabric layer 4 is disposed between the first polypropylene nonwoven fabric layer 1 and the mesh fabric layer 2; and a second black spunbond nonwoven fabric layer 5 is disposed between the mesh fabric layer 2 and the second polypropylene nonwoven fabric layer 3. The fibers used in the first black spunbond nonwoven fabric layer 4 and the second black spunbond nonwoven fabric layer 5 are core-sheath fibers, comprising a core 41 and a sheath 42; the core 41 is black polypropylene, and the sheath 42 is black polyethylene. Polyethylene has a low melting point, and the black polyethylene in the surface layer has a low melting point. After heating, it bonds with the adjacent fiber layers, enhancing the strength of the nonwoven fabric.

[0025] Specifically, the UV-resistant polypropylene fiber and the core-sheath structure fiber are combed into a web to form a five-layer structure of two layers of UV-resistant polypropylene fiber web, two layers of core-sheath structure fiber web and mesh cloth, which is then reinforced by hydroentanglement and dried.

[0026] Example 3

[0027] The anti-aging polypropylene non-woven fabric involved in this embodiment is different from the first or second embodiment in that a water repellent is attached to the surface of the anti-ultraviolet polypropylene fiber.

[0028] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. An anti-aging polypropylene non-woven fabric, characterized in that: It comprises a first polypropylene non-woven fabric layer (1), a mesh fabric layer (2) and a second polypropylene non-woven fabric layer (3) which are composited; The fibers used in the first polypropylene non-woven fabric layer (1) and the second polypropylene non-woven fabric layer (3) are UV-resistant polypropylene fibers; the cross-section of the UV-resistant polypropylene fibers is flat.

2. The anti-aging polypropylene non-woven fabric according to claim 1, characterized in that: A water repellent is attached to the surface of the anti-ultraviolet polypropylene fiber.

3. The anti-aging polypropylene non-woven fabric according to claim 1, characterized in that: A first black spunbond non-woven fabric layer (4) is provided between the first polypropylene non-woven fabric layer (1) and the mesh fabric layer (2); and a second black spunbond non-woven fabric layer (5) is provided between the mesh fabric layer (2) and the second polypropylene non-woven fabric layer (3).

4. The anti-aging polypropylene non-woven fabric according to claim 3, characterized in that: The fibers used in the first black spunbond non-woven fabric layer (4) and the second black spunbond non-woven fabric layer (5) are core-sheath structure fibers, and the core-sheath structure fibers include a core portion (41) and a sheath portion (42); the core portion (41) is black polypropylene, and the sheath portion (42) is black polyethylene.

5. The anti-aging polypropylene non-woven fabric according to claim 1, characterized in that: The mesh cloth layer (2) is woven from UV-resistant polyester filaments.

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