Vehicle carpet high in sound absorption performance and manufacturing method thereof

A carpet and performance technology, applied in the field of textile manufacturing, can solve the problems of reduced sound absorption, low sound absorption, low comfort, etc., and achieve the effects of increasing sound absorption coefficient, improving sitting comfort, and improving sound quality

Active Publication Date: 2015-09-30

江门庆宇汽车内装配件有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0005] Existing passenger car carpet materials are composite film blanks, which use polyester blanks as the surface, polyethylene as the adhesive layer, and a layer of polyester sound-absorbing Felt, the bottom is PUR sound-absorbing foam, the carpet of this structure, after the interlayer polyester sound-absor...

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

Abstract

The invention discloses a vehicle carpet high in sound absorption performance and a manufacturing method thereof. The carpet is formed by combining a carpet blank, a bonding layer, a composite sound absorption pad and sound absorption foam from top to bottom. The composite sound absorption pad is a composite material pad which is formed by mixing 30% of cotton fibers and 70% of polyester fibers, in this way, holes still exist after the cotton fibers are formed through roasting, the sound absorption capacity is improved, and the requirement for the strength of polyester products can also be met; meanwhile, all the layers are arranged according to a certain density ratio, and thus it is guaranteed that the optimum sound absorption effect can be achieved.

Application Domain

Vehicle arrangementsSynthetic resin layered products

Technology Topic

ChemistryCotton fibre +4

Image

Examples

Experimental program(1)

Example Embodiment

[0037] The following combination Attached drawing Further explain the structure of the present invention:

[0038] See Icon 2. From top to bottom, the car carpet includes polyester green carpet 1, PE bonding layer 2, cotton and polyester composite sound-absorbing felt 3 and sound-absorbing foam 4 composite. The density of polyester blanket 1 is 650g/m 2 , The density of PE adhesive layer 2 is 300g/m 2 , The composite sound-absorbing mat 3 is made of 30% cotton fiber and 70% polyester fiber, and the cotton fiber density is 195g/m 2， The density of polyester fiber is 455g/m 2 , The sound-absorbing foam adopts PUR foam with a density of 50kg/m 3.

[0039] Compared with the existing traditional carpet materials, the high sound-absorbing material has image 3 It can be seen that the high sound absorption material has a higher sound absorption capacity than the existing traditional technology materials.

[0040] The method of making the above carpet is as follows

[0041] 1. Material production (see structure Icon 2)

[0042] 1. Purchase the first layer of polyester blank blanket 650g/m 2 (Polyester Blanket 1).

[0043] 2. Make the third layer of material (high sound-absorbing material composite sound-absorbing mat 3)

[0044] ①Cotton fiber and polyester fiber materials are measured at the ratios of 30% and 70% by weight respectively (the low-melting-point fiber in the polyester fiber material accounts for 40%). If there are too many low-melting fiber, the material is too hard, which will affect sound absorption. The cotton fiber exceeds 50%, the product is too soft, and the product molding effect is poor.

[0045] ②Put the proportioned materials into the cotton blender and stir, the purpose is to fully mix the materials evenly. Uneven material mixing results in partial soft or hard products, which affects loading and sound absorption.

[0046] ③Through the smoothing machine, a net is formed.

[0047] ④Needle the mesh fiber into a felt shape by a multi-row needle punching machine. The needling is not tight and the material is easy to layer.

[0048] ⑤Bake and heat the felt through a heating oven.

[0049] ⑥The felt is rolled into a roll.

[0050] 3. The first layer and the third layer are bonded and combined through the second layer of PE adhesive layer 2.

[0051] ①Put the first layer of polyester blank blanket and the third layer of composite sound-absorbing mat 3 on the rolls on the two sides of the laminating machine.

[0052] ②After heating the PE compound, a fluid hot melt adhesive is formed. The fluid hot melt adhesive is rolled between the first layer of blank blanket and the third layer of sound-absorbing felt through a hot roller compound to combine the blank blanket and the sound-absorbing felt into a whole, namely image 3 One, two, and three layers of materials.

[0053] 2. Production of finished carpet

[0054] 1. After the above-mentioned composite carpet material is baked and softened in an oven, it is placed in a forming mold for compression and cooling.

[0055] 2. Cutting holes and edges for forming semi-finished products.

[0056] 3. The fourth layer (sound-absorbing foam 4) bottom PUR foaming: spray release agent in the foaming mold → pour PUR foaming material into the pouring hole of the foaming mold → after a certain period of time, the PUR foam is cured and formed → demolding , Take out the PUR foam molding.

[0057] 4. The PUR foam molding is placed in the combined positioning tooling, and the periphery is coated with glue. The carpet is placed on the foam and pasted with a certain cylinder pressure to become a carpet product.

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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PUM

Property	Measurement	Unit
Density	650.0	g/m²
Density	300.0	g/m²
Density	195.0	g/m²
tensile		MPa
Particle size		Pa
strength	10

Description & Claims & Application Information

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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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