Ultramicro cotton needled felt with high tensile strength

Abstract

The utility model discloses an ultramicro cotton needled felt with high tensile strength, which comprises a needled felt body, the needled felt body comprises a base layer, a reinforcing layer and an elastic layer, the reinforcing layer is arranged above the base layer, the elastic layer is arranged above the reinforcing layer, and a protective layer is arranged outside the needled felt body. According to the utility model, the reinforcing layer and the elastic layer are arranged, and the reinforcing layer adopts the high-strength fiber bundles to form a criss-cross net structure, so that the reinforcing layer becomes a'skeleton 'in the needled felt, the tensile strength of the needled felt is obviously improved, and the flexibility and rebound resilience of the needled felt are effectively improved due to the addition of the elastic layer; the needled felt is softer and is easy to deform under the action of external force, so that the stress and impact on the surrounding structure are reduced, and the tensile strength, flexibility, rebound resilience, durability and other properties of the needled felt can be comprehensively improved through the combined arrangement of the reinforcing layer and the elastic layer.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafine cotton needle-punched felt, in particular to an ultrafine cotton needle-punched felt with high tensile strength. Background Art

[0002] Ultra-fine cotton needle-punched felt is a material with a three-dimensional textile structure formed by interweaving ultra-fine fiber materials through a mechanical needling process. Its fiber diameter is usually much smaller than that of conventional fibers, so it has a more delicate feel and higher performance.

[0003] Existing ultra-fine cotton needle-punched felt is made of a large number of fibers interwoven through a needle-punching process. During use, the ultra-fine cotton needle-punched felt may be subjected to tensile force for a long time, resulting in fatigue accumulation and performance degradation. It is easy to deform or be damaged when subjected to external force, resulting in a decrease in the overall structural stability.

[0004] For example, the ultrafine fiber needled felt disclosed in patent publication number CN209505149U lacks high tensile strength. In applications requiring high tensile forces or complex stress environments, such as high temperatures, high pressures, and high-speed airflow, insufficient tensile strength can easily lead to deformation or damage when subjected to external forces, resulting in reduced overall structural stability. This can affect its filtration effectiveness and durability in practical applications.

[0005] Therefore, it is necessary to invent a kind of ultra-micro cotton needle-punched felt of high tensile strength to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an ultra-fine cotton needle-punched felt with high tensile strength, so as to solve the problem of low tensile strength in the technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-tensile-strength ultra-fine cotton needle-punched felt, comprising a needle-punched felt body, a reinforcing layer, an elastic layer and a protective layer, the needle-punched felt body comprising a base layer, a reinforcing layer and an elastic layer, the base layer being located at the bottom layer inside the needle-punched felt body, the reinforcing layer being located above the base layer, the elastic layer being located above the reinforcing layer, and a protective layer being provided on the outside of the needle-punched felt body.

[0008] Preferably, the base layer and the reinforcement layer are bonded together by a first adhesive layer, and the first adhesive layer ensures a tight bond between the base layer and the reinforcement layer.

[0009] Preferably, the reinforcing layer and the elastic layer are connected by a second viscose layer. The reinforcing layer is composed of dense fiber bundles interwoven in the horizontal and vertical directions to form a criss-cross network structure. The reinforcing layer enhances the tensile strength of the needle-punched felt body.

[0010] Preferably, the elastic layer is made of a highly elastic material, and a plurality of elastic protrusions are provided on the surface of the elastic layer. The plurality of elastic protrusions are evenly distributed in a rectangular array, and the elastic layer provides good flexibility and resilience.

[0011] Preferably, an intermediate layer is provided above the elastic layer, and the elastic layer and the intermediate layer are bonded together by a third adhesive layer. The intermediate layer further enhances the structural strength of the needle-punched felt body or serves as a transition to other functional layers.

[0012] Preferably, sound-absorbing cotton is provided above the middle layer, and the middle layer and the sound-absorbing cotton are connected by a No. 4 viscose layer. The sound-absorbing layer gives the needle-punched felt body good sound-absorbing performance, which is suitable for occasions where noise reduction is required.

[0013] Preferably, the protective layer is made of rubber material, and the protective layer is tightly wrapped around the outer side of the needle-punched felt body. The protective layer provides good wear resistance, corrosion resistance and aging resistance.

[0014] Preferably, the outer surface of the protective layer is provided with a wear-resistant layer, and the wear-resistant layer is a wear-resistant coating uniformly coated on the outer surface of the protective layer. The wear-resistant layer serves as additional protection for the protective layer, further enhancing the durability of the needle-punched felt.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. Through the arrangement of the reinforcing layer and the elastic layer, the reinforcing layer adopts high-strength fiber bundles to form a criss-cross mesh structure, making the reinforcing layer the "skeleton" of the needle felt, significantly improving the tensile strength of the needle felt. The addition of the elastic layer effectively improves the flexibility and resilience of the needle felt, making the needle felt softer and easier to deform when subjected to external forces, thereby reducing the stress and impact on the surrounding structure. The combination of the reinforcing layer and the elastic layer can comprehensively improve the tensile strength, flexibility, resilience and durability of the needle felt.

[0017] 2. By setting the protective layer, the protective layer covers the outer side of the needle-punched felt body. The existence of the protective layer can isolate the needle-punched felt body from direct contact with external corrosive substances, thereby reducing the damage to the needle-punched felt body caused by corrosion. The wear-resistant layer coated on the outside of the protective layer can significantly improve the wear resistance of the needle-punched felt, can resist external friction and wear, and extend the service life of the needle-punched felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cutaway three-dimensional structure of the protective layer of the present invention;

[0020] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the reinforcement layer and the elastic layer of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the protective layer of the present invention;

[0022] Figure 5 For the utility model Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0023] Description of reference numerals:

[0024] 1. Needle-punched felt body; 2. Base layer; 3. No. 1 viscose layer; 4. Reinforcement layer; 5. No. 2 viscose layer; 6. Elastic layer; 7. Elastic bumps; 8. No. 3 viscose layer; 9. Middle layer; 10. No. 4 viscose layer; 11. Sound-absorbing cotton; 12. Protective layer; 13. Wear-resistant layer. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-5 The shown embodiment is an ultra-fine cotton needle-punched felt with high tensile strength, comprising a needle-punched felt body 1, a reinforcing layer 4, an elastic layer 6 and a protective layer 12. The needle-punched felt body 1 comprises a base layer 2, a reinforcing layer 4 and an elastic layer 6. The base layer 2 is located at the bottom layer inside the needle-punched felt body 1, the reinforcing layer 4 is located above the base layer 2, the elastic layer 6 is located above the reinforcing layer 4, and a protective layer 12 is provided on the outside of the needle-punched felt body 1.

[0027] The base layer 2 and the reinforcement layer 4 are bonded together by the first viscose layer 3, and the reinforcement layer 4 and the elastic layer 6 are bonded together by the second viscose layer 5. The reinforcement layer 4 is composed of dense fiber bundles interwoven with each other in the horizontal and vertical directions to form a criss-cross mesh structure. The elastic layer 6 is made of highly elastic material. Elastic protrusions 7 are provided on the surface of the elastic layer 6. There are multiple elastic protrusions 7, and the multiple elastic protrusions 7 are uniformly distributed in a rectangular array. An intermediate layer 9 is provided above the elastic layer 6, and the elastic layer 6 and the intermediate layer 9 are bonded together by the third viscose layer 8.

[0028] The base layer 2 is made of strong and high-temperature resistant polyester fiber cloth as the base cloth, which provides basic support and stability for the needle-punched felt body 1, and a layer of high-temperature resistant strong viscose is evenly coated on the base layer 2 to ensure that the base layer 2 and the reinforcement layer 4 are firmly connected through the first viscose layer 3, and the reinforcement layer 4 is formed by using fiber bundles woven into a mesh structure in the horizontal and vertical directions through a special process. This structure significantly improves the tensile strength and overall stability of the needle-punched felt body 1, and the elastic layer 6 not only has good resilience, but also can effectively absorb vibration and impact, and cooperates with multiple elastic protrusions 7 to further enhance the buffering performance of the material.

[0029] Sound-absorbing cotton 11 is arranged above the middle layer 9, and the middle layer 9 and the sound-absorbing cotton 11 are glued together by a No. 4 viscose layer 10. The protective layer 12 is made of rubber material. The protective layer 12 is tightly wrapped around the outside of the needle-punched felt body 1. The outer surface of the protective layer 12 is provided with a wear-resistant layer 13, and the wear-resistant layer 13 is a wear-resistant coating evenly coated on the outer surface of the protective layer 12.

[0030] The middle layer 9 is made of lightweight polyester foam with a certain degree of rigidity. It plays a role of transition and support, and also provides a stable base for the subsequent sound-absorbing cotton 11. The sound-absorbing cotton 11 effectively absorbs and reduces noise transmission, improves the sound insulation performance of the needle-punched felt body 1, and the protective layer 12 protects the internal layers from erosion by the external environment, thereby extending the service life of the needle-punched felt. At the same time, a layer of wear-resistant coating is evenly coated on the outer surface of the protective layer 12 to form a wear-resistant layer 13, which further improves the durability and wear resistance of the material and prevents damage due to friction during use.

[0031] Working principle of this utility model:

[0032] Refer to the instruction manual Figure 1-2 When using the present invention, first, when the needle felt body 1 is subjected to external forces, the mesh structure of the reinforcement layer 4 can evenly distribute and absorb these forces, thereby preventing damage caused by local stress concentration. At the same time, the interwoven structure between the fiber bundles also increases the rigidity and stability of the needle felt body 1. At the same time, the elastic layer 6 can deform and absorb energy through the characteristics of its highly elastic material, thereby reducing the impact and damage to the internal structure. The elastic protrusions 7 on the surface of the elastic layer 6 further enhance its buffering performance, making the needle felt body 1 more adaptable and durable in complex environments. The intermediate layer 9 can also disperse and transmit the forces from below, ensuring that the needle felt body 1 can maintain the stability and integrity of the overall structure when subjected to external forces.

[0033] Refer to the instruction manual Figure 3-5When using the utility model, when the needle-punched felt body 1 uses sound waves to transmit to the sound-absorbing cotton 11, the porous structure of the sound-absorbing cotton 11 can absorb the energy of the sound waves and convert it into heat energy or other forms of energy for dissipation, which can significantly reduce the propagation and reflection of noise and improve the sound insulation performance of the needle-punched felt body 1. Finally, the protective layer 12 forms a solid barrier to isolate the internal layers from the external environment, thereby preventing harmful substances such as moisture, dust, and chemicals from eroding and damaging the needle-punched felt body 1, thereby extending its service life. When the needle-punched felt body 1 rubs against external objects, the wear-resistant layer 13 can resist wear and scratches, thereby protecting the internal layers from damage.

Claims

1. A high-tensile-strength ultrafine cotton needle-punched felt, comprising a needle-punched felt body (1), a reinforcing layer (4), an elastic layer (6) and a protective layer (12), characterized in that: The needle-punched felt body (1) comprises a base layer (2), a reinforcement layer (4) and an elastic layer (6); the base layer (2) is located at the bottom layer inside the needle-punched felt body (1); the reinforcement layer (4) is located above the base layer (2); the elastic layer (6) is located above the reinforcement layer (4); and a protective layer (12) is provided on the outside of the needle-punched felt body (1).

2. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 1, characterized in that: The base layer (2) and the reinforcement layer (4) are bonded together via a first adhesive layer (3).

3. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 1, characterized in that: The reinforcing layer (4) and the elastic layer (6) are bonded together via a second adhesive layer (5), and the reinforcing layer (4) is composed of dense fiber bundles interwoven in the horizontal and vertical directions to form a crisscross mesh structure.

4. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 3, characterized in that: The elastic layer (6) is made of a highly elastic material. The surface of the elastic layer (6) is provided with elastic bumps (7). A plurality of the elastic bumps (7) are provided, and the plurality of elastic bumps (7) are evenly distributed in a rectangular array.

5. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 4, characterized in that: An intermediate layer (9) is provided above the elastic layer (6), and the elastic layer (6) and the intermediate layer (9) are bonded and connected via a third adhesive layer (8).

6. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 5, characterized in that: A sound-absorbing cotton (11) is provided above the intermediate layer (9), and the intermediate layer (9) and the sound-absorbing cotton (11) are bonded together via a fourth adhesive layer (10).

7. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 1, characterized in that: The protective layer (12) is made of rubber material, and the protective layer (12) is tightly wrapped around the outer side of the needle-punched felt body (1).

8. The ultra-fine cotton needle-punched felt with high tensile strength according to claim 7, characterized in that: The outer surface of the protective layer (12) is provided with a wear-resistant layer (13), and the wear-resistant layer (13) is a wear-resistant coating uniformly coated on the outer surface of the protective layer (12).

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