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Improved two-component sound-absorbing cotton

A sound-absorbing cotton, two-component technology, applied in the field of sound-absorbing cotton, can solve the problems of poor sound-absorbing and sound-insulating effects, insufficient tensile strength, single structure, etc., and achieve the effect of improving sound-absorbing effect, good tensile force, and high overall strength

Pending Publication Date: 2019-02-01
宜兴市泰宇汽车零部件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sound-absorbing cotton for automobiles generally has problems such as single structure, poor sound-absorbing and sound-insulating effect, easy to disperse products, insufficient tensile strength, and not environmentally friendly.

Method used

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  • Improved two-component sound-absorbing cotton

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0010] Such as figure 1 As shown, an improved two-component sound-absorbing cotton according to the present invention includes sound-absorbing layer I1, sound-insulating layer I2, sound-absorbing layer II3 and sound-insulating layer II4 in sequence, and they are connected by adhesive layers between adjacent ones. The sound-absorbing layer I1 and the sound-absorbing layer II3 are both mixed layers made of polypropylene ultrafine fibers and PET short fibers melted according to the weight ratio of 2:7. The sound-absorbing layer I1, sound-insulating layer I2, sound-absorbing layer II3 and sound-insulating layer II4 The thickness ratio is (2-3):0.4:1:0.3, "U"-shaped sound-absorbing holes 5 are provided in the sound-absorbing layer I1, and "7"-shaped sound-absorbing holes 6 are provided in the sound-absorbing layer II3; The opening end of the "U"-shaped soun...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to improved two-component sound-absorbing cotton. The improved two-component sound-absorbing cotton sequentially comprises a sound-absorbing layer I, a sound-isolating layer I, asound-absorbing layer II and a sound-isolating layer ii, wherein the adjacent layers are connected by adhesive layers; the sound-absorbing layer I and the sound-absorbing layer II are both mixed layers prepared by melting ultrafine polypropylene fiber and staple PET fiber, wherein weight ratio of the ultrafine polypropylene fiber to the staple PET fiber is 3 to 8; thickness ratio of the sound-absorbing layer I to the sound-isolating layer I to the sound-absorbing layer II to the sound-isolating layer II is (2-3) to 0.4 to 1 to 0.3; and U-shaped sound-absorbing holes are arranged inside the sound-absorbing layer I while 7-shaped sound-absorbing holes are arranged inside the sound-absorbing layer II. The improved two-component sound-absorbing cotton is light in mass, good in sound-isolatingand sound-absorbing effects, environmentally friendly and excellent in pulling performance.

Description

technical field [0001] The invention relates to a sound-absorbing cotton, in particular to a two-component sound-absorbing cotton. Background technique [0002] With the progress of society and the continuous improvement of people's consumption level, customers have higher and higher requirements for automobile sound absorption, sound insulation, light weight, and comfort. The existing sound-absorbing cotton for automobiles generally has problems such as single structure, poor sound-absorbing and sound-insulating effect, easy to disperse products, insufficient tensile strength, and not being environmentally friendly. Contents of the invention [0003] Purpose of the invention: The purpose of the invention is to overcome the deficiencies in the prior art and provide an improved two-component sound-absorbing cotton with light weight, good sound insulation and sound absorption effect, environmental protection and good tensile force. [0004] Technical solution: In order to s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/36B32B27/06B32B33/00B32B3/30B60R13/08
CPCB32B3/30B32B5/08B32B33/00B60R13/08B32B2605/003B32B2262/0284B32B2262/0253B32B2262/14B32B2307/102
Inventor 王泽云
Owner 宜兴市泰宇汽车零部件有限公司
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