Automobile sound insulation main carpet preparation method
A technology for carpets and automobiles, which is applied in chemical instruments and methods, special positions of vehicles, vehicle parts, etc., can solve the problems of high product weight, poor sound insulation effect, and high cost, and achieves simple preparation method, reduced production cost, and sound insulation effect. and sound-absorbing effect
Inactive Publication Date: 2015-12-09
昆山九子莲汽车隔音材料有限公司
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Problems solved by technology
[0002] Existing car soundproof carpets are generally divided into two types: one is to pour a layer of PE film between the PET needle-punched fabric and the bottom felt for decoration and sound insulation. Its price is cheap, but the sound insulation effect is poor with only one layer of PE film; The other is to add a heavy coating between the PET needle-punched fabric and the bottom felt, which has a good sound insulation effect, but the product has high weight and high cost, and does not meet the requirements of light weight for automobiles.
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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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[0021] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.
[0022] Such as figure 1 Shown is a method for preparing an automobile sound-insulating main carpet. The main carpet is made of five layers from top to bottom, respectively A layer 1, B layer 2, C layer 3, D layer 4 and E layer 5, which are pressed at high temperature. Among them, A layer 1 is PET needle-punched fabric layer, B layer 2 is PE coating layer, C layer 3 is PET+PP bottom felt, D layer 4 is PE powder layer, E layer 5 is PEPA film, PET needle-punched fabric layer The density is 580±50g / ㎡,
[0023] Its preparation method comprises the following steps:
[0024] a. The PET fiber is made into A layer 1 through opening, mixing, carding, net...
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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The invention discloses an automobile sound insulation main carpet preparation method. The automobile sound insulation main carpet preparation method is characterized in that the main carpet is formed by five layers from top to bottom; the A layer, the B layer, the C layer, the D layer and the E layer are high-temperature pressed together. The preparation method comprises the following steps of opening, mixing, carding, lapping acupuncturing, rolling, raising and coiling PET fibers to form the A layer, opening, mixing, carding, lapping acupuncturing and hot ironing PET+PP fibers to form the C layer, evenly scattering PE powder on the C layer via a baking oven to form rollers, attaching a PEPA film on the back surface of the coiled product in the third step via the baking oven to form coils, bonding the A layer and the non-PEPA film-coated surface of the product in the fourth step via spraying a PE film, then slicing to form the sound insulation main carpet. The beneficial effects of the automobile sound insulation main carpet preparation method are that films are attached to the main carpet for twice and power is scattered for once; sound is consumed through times, so great sound insulation effect and excellent sound absorbing effect can be achieved; and the preparation method is simple.
Description
technical field [0001] The invention relates to a preparation method of a carpet, in particular to a preparation method of an automobile sound-insulating main carpet. Background technique [0002] Existing car soundproof carpets are generally divided into two types: one is to pour a layer of PE film between the PET needle-punched fabric and the bottom felt for decoration and sound insulation. Its price is cheap, but the sound insulation effect is poor with only one layer of PE film; The other is to add a heavy coating between the PET needle-punched fabric and the bottom felt, which has a good sound insulation effect, but the product has high weight and high cost, and does not meet the lightweight requirements of automobiles. This invention aims at increasing the sound insulation effect of the main carpet inside the car, while meeting the light weight requirements of the car, and improving the comfort and safety of the car. [0003] Therefore, in order to solve the above pro...
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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Login to View More IPC IPC(8): B60N3/04B32B38/18B32B37/02B32B37/15B32B38/16B32B38/04
Inventor 王江龙
Owner 昆山九子莲汽车隔音材料有限公司