A kind of sound-absorbing and sound-insulating needle-punched non-woven fabric for automobile interior decoration and preparation method thereof
A technology for acupuncture non-woven fabrics and car interiors is applied in the fields of sound-absorbing and sound-insulating needle-punched non-woven fabrics such as wheel cover blankets and their preparation, as well as in the fields of automobile luggage blankets, which can solve the problems that the sound insulation effect cannot meet the requirements, etc. Achieve the effect of reducing energy consumption, increasing areal density and saving resources
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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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