Sound-absorption sound-insulation needle-punched nonwoven fabric for automotive interiors and preparation method thereof

A technology of needle-punched non-woven fabrics and automotive interiors, applied in chemical instruments and methods, vehicle parts, lamination, etc., can solve the problem that the sound insulation effect cannot meet the requirements, reduce energy consumption, increase surface density, save resource effect

Active Publication Date: 2017-05-31
DEYANG YONGSHENG NONWOVEN PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sound insulation effect can not meet the requirements

Method used

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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  • Sound-absorption sound-insulation needle-punched nonwoven fabric for automotive interiors and preparation method thereof
  • Sound-absorption sound-insulation needle-punched nonwoven fabric for automotive interiors and preparation method thereof
  • Sound-absorption sound-insulation needle-punched nonwoven fabric for automotive interiors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A sound-absorbing and sound-insulating needle-punched non-woven fabric for automobile interior decoration, characterized in that it includes a face cloth 1 and a base cloth, the face cloth 1 and the base cloth are connected by an adhesive layer 2, and the face cloth 1 is 1.5D-8D polyester fiber, the surface density is 250-400g / ㎡, the base fabric includes the first base fabric 3 and the second base fabric 4, the first base fabric 3 and the second base fabric 4 They all include a fineness of 1.5D-8D, 30-40 parts by mass of polyester fiber, 25-35 parts of waste cotton fiber, 15-20 parts of polypropylene fiber and 15-20 parts of low-melting fiber. The surface density of the first base cloth 3 is 500-600g / ㎡, and the acupuncture density is 150-200 needles / cm²; the surface density of the second base fabric 4 is 800-900g / ㎡, and the needle density is 350-500 needles / cm². cm²; the first base fabric 3 and the second base fabric 4 are needle-punched and composited, and the needle-p...

Embodiment 2

[0028] A preparation method of sound-absorbing and sound-insulating needle-punched nonwoven fabric for automotive interior:

[0029] Step 1: Mixing, opening, carding, laying, and needle-punching polyester fibers of 1.5D-8D to make face cloth 1;

[0030] Step 2: Mix 30-40 parts of polyester fiber, 25-35 parts of waste cotton fiber, 15-20 parts of polypropylene fiber, and 15-20 parts of low-melting point fiber according to the proportion, carding, laying, and acupuncture reinforcement to make the bottom cloth;

[0031] Step 3: The base fabric includes a first base fabric 3 and a second base fabric 4, and the first base fabric 3 and the second base fabric 4 are needle-punched and compounded;

[0032] Step 4: heat setting: heat and shape the compounded first base fabric 3 and second base fabric 4 through a setting machine, and the setting temperature is 160-180°;

[0033] Step 5: Powder compounding: the heat-set first base cloth 3 and the second base cloth 4 are bonded to the fa...

Embodiment 3

[0035] A sound-absorbing and sound-insulating needle-punched non-woven fabric for automobile interior decoration, characterized in that it includes a face cloth 1 and a base cloth, the face cloth 1 and the base cloth are connected by an adhesive layer 2, and the face cloth 1 is 1.5D-8D polyester fiber, the surface density is 250-400g / ㎡, the base fabric includes the first base fabric 3 and the second base fabric 4, the first base fabric 3 and the second base fabric 4 They all include a fineness of 1.5D-8D, 30-40 parts by mass of polyester fiber, 25-35 parts of waste cotton fiber, 15-20 parts of polypropylene fiber and 15-20 parts of low-melting fiber. The surface density of the first base cloth 3 is 500-600g / ㎡, and the acupuncture density is 150-200 needles / cm²; the surface density of the second base fabric 4 is 800-900g / ㎡, and the needle density is 350-500 needles / cm². cm²; the first base fabric 3 and the second base fabric 4 are needle-punched and composited, and the needle-p...

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Abstract

The invention relates to the field of nonwoven fabric materials for automotive interiors, particularly a sound-absorption sound-insulation needle-punched nonwoven fabric for car trunk carpets and wheel cowl carpets and a preparation method thereof. The nonwoven fabric comprises a surface fabric and a base fabric, wherein the base fabric comprises a first base fabric and a second base fabric; the first base fabric and second base fabric are respectively prepared by mixing 30-40 parts by mass of polyester fibers with the titer of 1.5-8D, 25-35 parts by mass of waste cotton fibers, 15-20 parts by mass of polypropylene fibers and 15-20 parts by mass of low-melting-point fibers; the first base fabric is compounded with the second base fabric by needle punching; and the needle punching density is 300-500 needles/cm<2>. Compared with the prior art, the thin natural fibers are added to increase the surface density of the nonwoven fabric and reduce the porosity in the nonwoven fabric; and needled felt pieces with different densities and thicknesses are subjected to needling compounding and heat bonding to form the multilayer composite material, thereby obstructing the outside noise while absorbing the interior noise and improving the internal environment more effectively.

Description

technical field [0001] The invention relates to the field of non-woven materials for automobile interior decoration, in particular to sound-absorbing and sound-insulating needle-punched non-woven fabrics of automobile trunk blankets and wheel cover blankets and a preparation method thereof. Background technique [0002] In recent years, with the continuous improvement of people's living standards, the requirements for the quiet performance of automobiles are also getting higher and higher. Car noise is divided into outside noise and inside noise. The noise outside the car refers to the noise generated by the engine, exhaust pipe, tires, brakes and transmission during the operation of the car, while the noise inside the car refers to the noise from various parts outside the car box that is introduced into the car through various channels. Part of the noise and the noise generated by the structural vibration of various parts of the car radiate into the cabin. These noise soun...

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): B32B7/12B32B5/06B32B9/00B32B9/04B32B27/12B32B27/32B32B27/36B32B37/10B32B37/12
CPCB32B5/02B32B5/06B32B7/12B32B9/00B32B9/045B32B27/12B32B27/32B32B27/36B32B37/10B32B37/1207B32B2037/1215B32B2037/1238B32B2250/20B32B2262/0253B32B2262/0276B32B2262/062B32B2307/102B32B2605/003
Inventor 李炳林王伟田雨胜
Owner DEYANG YONGSHENG NONWOVEN PROD
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