Automobile fender with double-layer fabrics and preparation process of automobile fender

A technology of double-layer fabrics and fenders, applied in the direction of lamination, layered products, lamination devices, etc., can solve the problems of high noise, heavy weight, easy to break fenders, etc., and achieve good sound absorption effect and light weight. , high-strength effect

Inactive Publication Date: 2014-12-03
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of easy breakage, high noise and heavy weight of automobile fenders in the...

Method used

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  • Automobile fender with double-layer fabrics and preparation process of automobile fender

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: The low-melting-point fiber adopts the low-melting-point fiber of modified PET, and the melting point is 110~120°C.

[0021] The hollow fibers are hollow PET fibers. Fender fabric skin density is 100g / m 2 , fender mixed fiber felt density is 950g / m 2 .

[0022] A kind of automobile double-layer fabric fender preparation process, comprises the steps:

[0023] (1) Preparation of the fabric skin layer: 75 parts by weight of polyester fiber and 25 parts by weight of polypropylene fiber are mixed, carded, laid and needled to make the skin layer of the fabric. The frequency of pre-needling is 490HZ, and the frequency of down-needling is 32HZ , the upper acupuncture frequency is 30HZ;

[0024] (2) Preparation of mixed fiber mat layer: 40 parts by weight of low melting point fiber, 10 parts by weight of hollow fiber, and 50 parts by weight of polyester fiber were mixed, carded, laid and needled to prepare a mixed fiber felt layer, and the pre-needling freq...

Embodiment 2

[0030] Embodiment two : The low-melting-point fiber adopts low-melting-point fiber of modified PET, and the melting point is 110~120°C. The hollow fibers are hollow PET fibers. The density of the fender fabric skin layer is 125g / m 2 , the density of the fender mixed fiber felt layer is 1025g / m 2 .

[0031] A kind of automobile double-layer fabric fender preparation process, comprises the steps:

[0032] (1) Preparation of the fabric skin layer: 77.5 parts by weight of polyester fiber and 22.5 parts by weight of polypropylene fiber were mixed, carded, laid and needled to make the fabric skin. The upper acupuncture frequency is 32HZ;

[0033] (2) Preparation of mixed fiber felt layer: 45 parts by weight of low-melting fiber, 12.5 parts by weight of hollow fiber, and 42.5 parts by weight of polyester fiber were mixed, carded, laid and needled to prepare a mixed fiber felt, and the frequency of pre-needling was 490HZ, the lower acupuncture frequency is 33HZ, and the upper a...

Embodiment 3

[0040] Embodiment three: The low-melting-point fiber adopts the low-melting-point fiber of modified PET, and the melting point is 110~120°C. The hollow fibers are hollow PET fibers. The density of the fender fabric skin layer is 150g / m 2 , the density of the fender mixed fiber felt layer is 1100g / m 2 .

[0041] A kind of automobile double-layer fabric fender preparation process, comprises the steps:

[0042] (1) Preparation of fabric skin layer: 75 parts by weight of polyester fiber and 25 parts by weight of polypropylene fiber are mixed, carded, laid and needled to make a fabric skin. The frequency of pre-needling is 510HZ, and the frequency of lower needling is 35HZ. The upper acupuncture frequency is 35HZ;

[0043] (2) Preparation of mixed fiber felt layer: 50 parts by weight of low-melting fiber, 15 parts by weight of hollow fiber, and 45 parts by weight of polyester fiber were mixed, carded, laid and needled to prepare a mixed fiber felt. The pre-needling frequency ...

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Abstract

The invention relates to an automobile fender with double-layer fabrics and a preparation process of the automobile fender and belongs to the technical field of preparation of automobile exterior trimming parts. The automobile fender comprises a fabric surface layer and a mixed fiber felt layer which are formed by needling and compounding, wherein the fabric surface layer comprises the following materials in parts by weight: 75-80 parts of polyester fiber and 20-25 parts of polypropylene fiber; the mixed fiber felt layer comprises the following materials in parts by weight: 40-50 parts of low-melting-point fiber, 10-15 parts of hollow fiber and 40-50 parts of polyester fiber. The preparation of the automobile fender with the double-layer fabrics is finished by the following steps: preparing the fabric surface layer, preparing the mixed fiber felt layer, preparing a compound surface blanket, presetting the compound surface blanket, baking for softening treatment, performing compression moulding and performing water-jet cutting. The preparation method is simple, and the prepared fender is light in weight, high in strength and good in sound-absorbing effect, is environmentally friendly and can be recycled.

Description

technical field [0001] The invention relates to an automobile double-layer fabric fender and a preparation process thereof, belonging to the technical field of automobile exterior decorations. Background technique [0002] The car fender is a plate structure installed on the outer frame of the wheel. During driving, it can prevent small hard objects or muddy water from splashing on the car body, damage the car body, and protect the car body. In the era of more and more pursuit of high performance, environmental protection, light weight and comfort, people have higher and higher requirements for automotive accessories. At present, automobile fenders are mainly made of rubber and engineering plastics. The existing plastic and rubber fenders mainly have the following problems: 1. The plastic fenders are relatively brittle and easy to break. If the scraper is hard, it will easily fall off or scratch the vehicle body. 2. When driving, the mudguard is impacted by stones, which ...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B27/36B32B37/15B32B37/06B32B37/10B32B38/04
Inventor 张玮长
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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