Silent felt with smooth surface

Abstract

The utility model relates to a mute felt with a smooth surface, and relates to the field of automobile mute felts.The mute felt comprises a bottom layer and a surface layer, the surface layer is arranged on the surface of the bottom layer, the bottom layer is formed by weaving and needling various plant fiber layers, and the bottom of the bottom layer is fixedly connected with a bonding layer. The thickness of the mute felt can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile sound-proof felt, and in particular to a sound-proof felt with a smooth surface. Background Art

[0002] The interior parts of cars mainly play the role of protection, sound insulation, sound absorption and decoration, which requires that the interior parts must have a certain strength and good acoustic performance (sound insulation and sound absorption). At present, the interior of cars is developing in the direction of lightweight, beautiful and comfortable, energy-saving and environmentally friendly, and personalized. People have higher and higher requirements on the weight, strength, acoustics and structure of car interiors.

[0003] The car's carpet, front wall, door panel, shelf, trunk side carpet, and under the seat are filled with silent felt to play a role in sound insulation, sound absorption and decoration. In the prior art, common silent felt mainly includes sound-absorbing cotton and a thick rubber surface layer, and the sound-absorbing cotton and the thick rubber surface layer are fixed by colloid bonding.

[0004] However, the thick rubber surface layer is fixed to the surface of the base material by colloid bonding, which easily increases the thickness of the sound-proof felt and causes excessive occupation of the space used by it, so there is room for improvement. Utility Model Content

[0005] In order to reduce the thickness of the sound-absorbing felt and reduce the space occupied by the sound-absorbing felt, the present application provides a sound-absorbing felt with a smooth surface.

[0006] The present application provides a smooth-surfaced silent felt using the following technical solution:

[0007] A soundproof felt with a smooth surface comprises a bottom layer and a surface layer, wherein the surface layer is arranged on the surface of the bottom layer, the bottom layer is formed by needle punching of multiple plant fiber layers, and an adhesive layer is fixedly connected to the bottom of the bottom layer.

[0008] By adopting the above technical solution, several plant fiber layers are processed by needle punching to form a whole base material, and several tiny pores and gaps are formed between the plant fibers, which can achieve a good mute effect; the surface layer on the surface of the bottom layer can increase the overall aesthetics of the mute felt, and at the same time provide good protection for the plant fibers of the bottom layer, so as to prevent the plant fibers from rubbing against external components and causing the fibers to fall off. The matching of the bottom layer made of plant fibers and the surface layer on the surface of the bottom layer can reduce the practicality of the thick rubber layer, and while ensuring the mute effect of the felt, the thickness of the felt can be effectively reduced, and the excessive space occupied by the mute felt can be reduced. In addition, the setting of the adhesive layer can facilitate the user to fix the mute felt according to the actual needs of use, which can improve the convenience of the user in using the mute felt.

[0009] Preferably, the surface layer includes an adhesive coating, an isolation coating, a coloring coating and a polymer crystal layer, which are sequentially coated on the surface of the bottom layer from bottom to top.

[0010] By adopting the above technical scheme, the adhesive coating can increase the connection stability between the isolation coating and the bottom layer, the isolation coating can be used to isolate light to avoid color interference between the coloring and the bottom fiber, and the coloring layer can be customized and printed according to the needs of actual use and production, so that the surface of the felt presents wood grain, marble grain and other patterns, effectively improving the aesthetics of the felt; the polymer crystal layer can improve the hardness, rigidity and waterproof performance of the felt surface, improve the overall impact resistance and waterproof performance of the felt, and at the same time make it easier for users to clean the surface of the felt.

[0011] Preferably, the surface layer is formed by high-density cross-weaving of braided wires, and the braided wires are made of PET fibers.

[0012] By adopting the above technical scheme, PET fiber itself has hydrophobic properties, and the braided wire made of PET fiber is formed by high-density cross-weaving. The pores formed between the braided wires are small in diameter. When water stains fall onto the surface of the sound-proof felt, it is difficult for the water stains to penetrate through the surface layer to the bottom layer, thereby achieving good decorative and waterproof effects.

[0013] Preferably, the surface layer is formed by high-density cross-weaving of cotton and linen braided wires.

[0014] By adopting the above technical solution, the cotton and linen braided threads are densely cross-woven to form a surface layer. When water stains fall onto the surface of the felt, the cotton and linen fibers in the cotton and linen braided threads absorb water and swell, causing the micropores between the cotton and linen braided threads to further shrink, thereby preventing the water stains from further seeping into the bottom layer, thereby achieving decorative and waterproof effects.

[0015] Preferably, the bottom layer is stacked with a single-layer structure formed by interlacing cotton and linen fibers and PET fibers.

[0016] By adopting the above technical scheme, cotton, linen and PET fibers are widely available and can be produced after processing from discarded recycled plastics, scraps from chemical fiber factories, and discarded clothing from recycling stations. Moreover, when the felt is damaged and disassembled, the bottom layer of the felt can be recycled for reuse, which is more environmentally friendly.

[0017] In summary, the present invention provides a smooth-surfaced silent felt having at least one of the following beneficial technical effects:

[0018] 1. Several plant fiber layers are processed by needle punching to form a whole base material. Several tiny pores and gaps are formed between the plant fibers, which can achieve a good mute effect. The surface layer on the bottom surface can increase the overall aesthetics of the mute felt, and at the same time provide good protection for the plant fibers of the bottom layer, so as to prevent the plant fibers from rubbing against external components and causing the fibers to fall off. The bottom layer made of plant fibers and the surface layer on the bottom surface are matched with each other, which can reduce the practicality of the thick rubber layer, ensure the mute effect of the felt, and effectively reduce the thickness of the felt, reducing the excessive space occupied by the mute felt.

[0019] 2. PET fiber and cotton and linen fiber are compounded into a single-layer material felt through needle punching. PET fiber and waste spinning fiber can be recycled from waste plastics and waste cloth. When the silent felt is damaged and disassembled, it can be recycled, which can effectively improve the environmental protection of the silent felt;

[0020] 3. The adhesive layer can facilitate users to connect the silent felt to external components, thereby improving the convenience of users in using the silent felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of an embodiment of the present application for demonstrating the overall structure of the sound-proof felt.

[0022] Explanation of the accompanying drawings: 1. bottom layer; 11. plant fiber layer; 2. surface layer; 3. adhesive layer. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 This application is described in further detail.

[0024] Example 1

[0025] The present application embodiment discloses a sound-proof felt with a smooth surface. Figure 1 It mainly includes a bottom layer 1 and a surface layer 2. The surface layer 2 is arranged on the surface of the bottom layer 1. The bottom layer 1 is formed by needle punching of a variety of plant fiber layers 11. The bottom of the bottom layer 1 is fixedly connected with an adhesive layer 3.

[0026] Several plant fiber layers 11 are needle-punched to form a whole base material, and several tiny pores and gaps are formed between the plant fibers, which can achieve a good sound-proofing effect; the surface layer 2 on the surface of the bottom layer 1 can increase the overall aesthetics of the sound-proof felt, and at the same time provide good protection for the plant fibers of the bottom layer 1 to prevent the plant fibers from rubbing against external components and causing the fibers to fall off.

[0027] The bottom layer 1 made of plant fiber and the surface layer 2 on the surface of the bottom layer 1 are matched with each other, which can reduce the practicality of the thick rubber layer, ensure the sound-proof effect of the felt, and effectively reduce the thickness of the felt and reduce the excessive space occupied by the sound-proof felt.

[0028] In addition, the provision of the adhesive layer 3 can facilitate the user to fix the silent felt according to actual use needs, which can improve the convenience of the user in using the silent felt.

[0029] In this embodiment, the surface layer 2 includes an adhesive coating, an isolation coating, a coloring coating and a polymer crystal layer, which are sequentially coated on the surface of the bottom layer 1 from bottom to top.

[0030] Among them, the adhesive coating can increase the connection stability between the isolation coating and the bottom layer 1, the isolation coating can be used to isolate light to avoid color interference between the coloring and the fibers of the bottom layer 1, and the coloring layer can be customized and printed according to actual use and production needs, so that the surface of the felt presents wood grain, marble grain and other patterns, effectively improving the aesthetics of the felt; the polymer crystal layer can improve the hardness, rigidity and waterproof performance of the felt surface, improve the overall impact resistance and waterproof performance of the felt, and at the same time make it easier for users to clean the surface of the felt.

[0031] The bottom layer 1 is a single-layer structure stacked by interlacing cotton and linen fibers and PET fibers.

[0032] Cotton, linen and PET fibers are widely available and can be processed from discarded and recycled plastics, leftovers from chemical fiber factories, and discarded clothing from recycling stations. When the felt is damaged and disassembled, the bottom layer 1 of the felt can be recycled for reuse, which is more environmentally friendly.

[0033] The implementation principle of a smooth-surfaced silent felt in the embodiment of the present application is as follows: a plurality of plant fiber layers 11 are processed by needle punching to form a whole base material, and a plurality of tiny pores and gaps are formed between the plant fibers, so as to achieve a good silent effect; the surface layer 2 on the surface of the bottom layer 1 can increase the overall aesthetics of the silent felt, and at the same time provide good protection for the plant fibers of the bottom layer 1, so as to prevent the plant fibers from rubbing against external components and causing the fibers to fall off. The bottom layer 1 made of plant fibers and the surface layer 2 on the surface of the bottom layer 1 are matched with each other, so as to reduce the practicality of the thick rubber layer, ensure the silent effect of the felt, and effectively reduce the thickness of the felt, so as to reduce the excessive space occupied by the silent felt. In addition, the setting of the adhesive layer 3 can facilitate the user to fix the silent felt according to the actual needs of use, so as to improve the convenience of the user in using the silent felt.

[0034] Example 2

[0035] The surface layer 2 is replaced with a woven surface layer 2 formed by high-density cross-weaving of braided wires. The braided wires are woven from PET fibers. The hydrophobic properties of the PET braided wires themselves and the micropores between the braided wires formed by the high-density weaving process can achieve good waterproof performance. At the same time, compared with the thick rubber surface layer 2, it has the advantages of being thinner and lighter.

[0036] At the same time, when the felt is damaged and discarded, the felt and the woven surface layer 2 on the surface can be recycled to improve the environmental friendliness of the felt.

[0037] Example 3

[0038] The surface layer 2 is replaced with a braided surface layer 2 formed by high-density cross-weaving of braided wires, and the braided wires are woven from cotton and linen fibers.

[0039] The waste spinning braided wire is woven from a number of waste spinning fibers. The gaps between the waste spinning fibers are small, and the through holes between the waste spinning braided wires are tiny. When water stains fall onto the surface of the woven surface layer 2, the expansion of the waste spinning fibers can further reduce the micropores, forming a waterproof surface on the surface of the felt, thereby ensuring the waterproof performance and aesthetics of the felt.

[0040] It should be noted that, in some other embodiments, according to the actual needs of use, the woven surface layer 2 made of cotton and linen woven wire can be sanded or roughened to improve the anti-slip performance of the silent felt, which is not limited here.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soundproof felt with a smooth surface, characterized in that: It comprises a bottom layer (1) and a surface layer (2), wherein the surface layer (2) is arranged on the surface of the bottom layer (1), the bottom layer (1) is formed by needle punching of a plurality of plant fiber layers (11), and an adhesive layer (3) is fixedly connected to the bottom of the bottom layer (1).

2. A sound-proof felt with a smooth surface according to claim 1, characterized in that: The surface layer (2) comprises an adhesive coating, an isolation coating, a coloring coating and a polymer crystal layer, which are sequentially coated on the surface of the bottom layer (1) from bottom to top.

3. A sound-proof felt with a smooth surface according to claim 1, characterized in that: The surface layer (2) is formed by high-density cross-weaving of braided wires, and the braided wires are made of PET fibers.

4. The sound-proof felt with a smooth surface according to claim 2, characterized in that: The surface layer (2) is formed by high-density cross-weaving of cotton and linen braided wires.

5. The sound-proof felt with a smooth surface according to claim 1, characterized in that: The bottom layer (1) is a single-layer structure stacked by interlacing cotton and linen fibers and PET fibers.

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