Buffering and silencing non-woven fabric

Abstract

The utility model discloses a buffering and silencing non-woven fabric which comprises a first polyester fiber layer, a sound-absorbing fiber layer and a second polyester fiber layer which are combined in a needling mode. The side, away from the sound-absorbing fiber layer, of the second polyester fiber layer is coated with a flocking adhesive layer, and a buffering fluff layer is arranged on the flocking adhesive layer through electrostatic flocking; the buffer fluff layer is made of bi-component polyester fibers, and the cross section of the bi-component polyester fibers is of a parallel structure composed of two kinds of polyester fibers, one kind of polyester fibers is high-shrinkage polyester fibers, and the other kind of polyester fibers is low-shrinkage polyester fibers. According to the buffering and silencing non-woven fabric, the bi-component polyester fibers used on the surface of the buffering and silencing non-woven fabric can curl after being heated, and therefore the buffering effect on objects falling on the buffering and silencing non-woven fabric can be achieved. The section of the polyester fiber is of a special-shaped structure, so that the reflection frequency of sound waves in the polyester fiber can be increased. And the hollow fibers used in the sound-absorbing fiber layer can also increase the reflection of sound waves, so that the generation of noise is reduced.

Description

Technical Field

[0001] The utility model relates to a buffering and sound-absorbing non-woven fabric, belonging to the technical field of non-woven fabrics. Background Art

[0002] With the development of society, people's requirements for living environment are getting higher and higher. Noise is also a kind of pollution, which has a great impact on people's lives. The sound of TV and stereo at home will cause noise to neighbors, and objects falling on the floor will also make a loud noise. Laying carpet on the ground can effectively reduce noise and also play a buffering role.

[0003] Textile fiber materials are considered to be good sound-absorbing and sound-insulating materials due to their excellent properties such as looseness, porosity, lightness, low price and easy processing. How to use textile fibers to prepare a buffering and sound-absorbing non-woven fabric has become a problem to be solved. Utility Model Content

[0004] The utility model aims to provide a buffering and sound-absorbing nonwoven fabric, which has the effects of buffering and sound-absorbing.

[0005] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0006] The utility model relates to a buffering sound-absorbing non-woven fabric, comprising a first polyester fiber layer, a sound-absorbing fiber layer and a second polyester fiber layer which are compounded by needle punching;

[0007] A flocking adhesive layer is coated on the side of the second polyester fiber layer away from the sound-absorbing fiber layer, and a buffering fluff layer is provided on the flocking adhesive layer by electrostatic flocking;

[0008] The buffering fluff layer is made of bi-component polyester fibers, the cross section of which is a parallel structure composed of two kinds of polyester fibers, one of which is high-shrinkage polyester fiber and the other is low-shrinkage polyester fiber.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the cross-section of the polyester fiber used in the first polyester fiber layer and the second polyester fiber layer 3 is Y-shaped or cross-shaped.

[0010] On the basis of the above solution and as a preferred solution of the above solution: the sound-absorbing fiber layer uses hollow fibers.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the cross-section of the cavity part of the hollow fiber is circular or cross-shaped.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the sound-absorbing fiber layer and the second polyester fiber layer are provided with an antibacterial fiber layer; the fiber used in the antibacterial fiber layer is polyester fiber with nano zinc oxide particles attached to the surface.

[0013] The beneficial effects of the utility model are as follows: the bicomponent polyester fiber used on the surface of the buffering sound-absorbing nonwoven fabric involved in the utility model will curl after being heated, so as to play a buffering role for objects dropped thereon. The cross-section of the polyester fiber is a special-shaped structure, which can increase the number of times the sound waves are reflected therein. The hollow fiber used in the sound-absorbing fiber layer can also increase the reflection of the sound waves, thereby reducing the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 1 is a schematic diagram of the structure of the buffering and sound-absorbing non-woven fabric involved in Example 1;

[0015] Figure 2 It is a schematic diagram of the structure of the buffering and sound-absorbing non-woven fabric involved in the second embodiment.

[0016] The markings in the figure are as follows: 1-first polyester fiber layer; 2-sound-absorbing fiber layer; 3-second polyester fiber layer; 4-flocking glue layer; 5-buffering fluff layer; 6-antibacterial fiber layer. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Embodiment 1

[0019] Combination Figure 1 The present embodiment is described in detail. The buffering sound-absorbing nonwoven fabric involved in the present embodiment comprises a first polyester fiber layer 1, a sound-absorbing fiber layer 2 and a second polyester fiber layer 3, which are compounded by needle punching.

[0020] The side of the second polyester fiber layer 3 away from the sound-absorbing fiber layer 2 is coated with a flocking adhesive layer 4, and a buffering fluff layer 5 is arranged on the flocking adhesive layer 4 by electrostatic flocking. The buffering fluff layer 5 uses a bi-component polyester fiber, and the cross section of the bi-component polyester fiber is a parallel structure composed of two kinds of polyester fibers, one is a high-shrinkage polyester fiber, and the other is a low-shrinkage polyester fiber. The supplier of the bi-component polyester fiber is Toyobo Industry Co., Ltd. of Japan, and the model is msw5730. After heating, the high-shrinkage polyester fiber has a high shrinkage rate, while the low-shrinkage polyester fiber has a low shrinkage rate, which will cause the bi-component polyester fiber to bend.

[0021] Furthermore, the cross-section of the polyester fiber used in the first polyester fiber layer 1 and the second polyester fiber layer 3 is Y-shaped or cross-shaped. In this embodiment, the Y-shape is selected. The polyester fiber with a special cross-section can increase the number of reflections of sound waves in the first polyester fiber layer 1 and the second polyester fiber layer 3, which can effectively reduce noise.

[0022] Furthermore, the sound-absorbing fiber layer 2 is made of hollow fibers. The cross section of the hollow fiber is circular or cross-shaped. In this embodiment, the cross section of the hollow fiber is selected to be cross-shaped, which can also increase the number of reflections of sound waves.

[0023] Embodiment 2

[0024] Combination Figure 2 The present embodiment is described in detail. The difference between the present embodiment and the first embodiment is that the sound-absorbing fiber layer 2 and the second polyester fiber layer 3 are provided with an antibacterial fiber layer 6; the fiber used in the antibacterial fiber layer 6 is a polyester fiber with nano zinc oxide particles attached to the surface.

[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A buffering and sound-absorbing nonwoven fabric, characterized in that: It comprises a first polyester fiber layer (1), a sound-absorbing fiber layer (2) and a second polyester fiber layer (3) which are needle-punched and composited with each other; A flocking adhesive layer (4) is coated on the side of the second polyester fiber layer (3) away from the sound-absorbing fiber layer (2), and a buffering fluff layer (5) is provided on the flocking adhesive layer (4) by electrostatic flocking; The buffering fluff layer (5) is made of bi-component polyester fibers, the cross section of which is a parallel structure composed of two types of polyester fibers, one of which is a high-shrinkage polyester fiber and the other is a low-shrinkage polyester fiber.

2. The buffering and sound-absorbing nonwoven fabric according to claim 1, characterized in that: The polyester fibers used in the first polyester fiber layer (1) and the second polyester fiber layer (3) have a Y-shaped or cross-shaped cross section.

3. The buffering and sound-absorbing nonwoven fabric according to claim 1, characterized in that: The sound-absorbing fiber layer (2) is made of hollow fibers.

4. The buffering and sound-absorbing nonwoven fabric according to claim 3, characterized in that: The cross section of the cavity portion of the hollow fiber is circular or cross-shaped.

5. The buffering and sound-absorbing nonwoven fabric according to claim 1, characterized in that: The sound-absorbing fiber layer (2) and the second polyester fiber layer (3) are provided with an antibacterial fiber layer (6); the fibers used in the antibacterial fiber layer (6) are polyester fibers with nano zinc oxide particles attached to the surface.

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