Double-sided black polyester sound-absorbing cotton

A sound-absorbing cotton, black technology, applied in the field of sound-absorbing materials, can solve the problems of PET/PP two-component sound-absorbing cotton corner waste recycling, poor oxidation resistance and elasticity of products, difficult to achieve blending, etc., to achieve strong decoration , easy processing, and the effect of improving the support strength

Inactive Publication Date: 2019-10-15
SHANGHAI TAIRICH ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors of the present application found that in the prior art, although PET / PP two-component sound-absorbing cotton products have certain sound-absorbing properties, the effect is not good. In addition, the blending of the two materials requires the addition of a large amount of additives, which makes it difficult to achieve complete uniformity. blending, the product has poor oxidation resistance and elasticity, and PET / PP two-component sound-absorbing cotton scraps are difficult to recycle

Method used

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  • Double-sided black polyester sound-absorbing cotton
  • Double-sided black polyester sound-absorbing cotton
  • Double-sided black polyester sound-absorbing cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 4

[0042] Example 4 is a comparative example of Example 2. The difference between this Example 4 and Example 2 is that the fineness of the PET polyester fiber used in the sound-absorbing cotton layer 3 is 0.5D, and other components are consistent with Example 2. The double-sided black polyester sound-absorbing cotton in Example 4 includes: the first non-woven fabric layer 1, the second non-woven fabric layer 2 and the sound-absorbing cotton layer 3, the upper surface of the sound-absorbing cotton layer 3 and the first non-woven fabric layer The lower surface of the layer 1 is attached, and the lower surface of the sound-absorbing cotton layer 3 is attached to the lower surface of the second non-woven fabric layer 2 . The first non-woven fabric layer 1 includes the following components by weight: 98 parts of PET polyester fiber, 1.5 parts of carbon black, and 0.5 parts of carbon black dispersant. The second non-woven fabric layer 2 includes the following components by weight: 98 p...

Embodiment 5

[0043] Example 5 is a comparative example of Example 2. The difference between this Example 5 and Example 2 is that the fineness of the PET polyester fiber used in the sound-absorbing cotton layer 3 is 1.0D, and other components are consistent with Example 2. The double-sided black polyester sound-absorbing cotton in Example 5 includes: the first non-woven fabric layer 1, the second non-woven fabric layer 2 and the sound-absorbing cotton layer 3, the upper surface of the sound-absorbing cotton layer 3 and the first non-woven fabric layer The lower surface of the layer 1 is attached, and the lower surface of the sound-absorbing cotton layer 3 is attached to the lower surface of the second non-woven fabric layer 2 . The first non-woven fabric layer 1 includes the following components by weight: 98 parts of PET polyester fiber, 1.5 parts of carbon black, and 0.5 parts of carbon black dispersant. The second non-woven fabric layer 2 includes the following components by weight: 98 p...

Embodiment 6

[0044] Embodiment 6 is a comparative example of Embodiment 2. The difference between this Embodiment 6 and Embodiment 2 is that the flow resistance of the PET polyester fiber used in the first non-woven fabric layer 1 is 2 million Pa.s / ㎡, and the second The PET polyester fiber used in the non-woven fabric layer 2 has a flow resistance of 2 million Pa.s / ㎡, and other components are consistent with the second embodiment. The double-sided black polyester sound-absorbing cotton in Example 6 includes: the first non-woven fabric layer 1, the second non-woven fabric layer 2 and the sound-absorbing cotton layer 3, the upper surface of the sound-absorbing cotton layer 3 and the first non-woven fabric layer The lower surface of the layer 1 is attached, and the lower surface of the sound-absorbing cotton layer 3 is attached to the lower surface of the second non-woven fabric layer 2 . The first non-woven fabric layer 1 includes the following components by weight: 98 parts of PET polyester...

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Abstract

The embodiment of the invention discloses double-sided black polyester sound-absorbing cotton. The double-sided black polyester sound-absorbing cotton comprises a first non-woven fabric layer, a second non-woven fabric layer and a sound-absorbing cotton layer. The upper surface of the sound-absorbing cotton layer is attached to the lower surface of the first non-woven fabric layer. The lower surface of the sound-absorbing cotton layer is attached to the lower surface of the second non-woven fabric layer. The first non-woven fabric layer comprises the following components in parts by weight: 95-99 parts of polyester material, 0.5-4 parts of carbon black, and 0.5-1 part of carbon black dispersing agent. The second non-woven fabric layer comprises the following components in parts by weight:95-99 parts of polyester material, 0.5-4 parts of carbon black, and 0.5-1 part of carbon black dispersing agent. The sound-absorbing cotton layer comprises the following components in parts by weight:95-99 parts of PET polyester fiber, 0.5-4 parts of white carbon black and 0.5-1 part of carbon black dispersing agent. The double-sided black polyester sound-absorbing cotton is convenient to process, high in sound-absorbing performance and high in decoration performance.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of sound-absorbing materials, in particular to a double-sided black polyester sound-absorbing cotton. Background technique [0002] With the development of science and technology and changes in people's lifestyles, sound pollution is becoming more and more serious, and even greatly interferes with the normal functions of the human body. Therefore, customers have higher and higher requirements for car sound absorption and comfort. Traditional car sound-absorbing materials generally use PET (polyethylene terephthalate) / PP (polypropylene) two-component sound-absorbing cotton to absorb the noise inside the car, thereby creating a quiet driving environment. [0003] The inventors of the present application found that in the prior art, although PET / PP two-component sound-absorbing cotton products have certain sound-absorbing properties, the effect is not good. In addition, the blending of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D31/02B32B27/02B32B27/12B32B27/18B32B27/36D06M17/00
CPCB32B5/02B32B5/022B32B5/26B32B2250/20B32B2262/0284B32B2264/108B32B2307/10B32B2307/54D06M17/00
Inventor 刘昉张子号白念涛
Owner SHANGHAI TAIRICH ELECTRONICS TECH
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