Pressing-dot compound non-woven fabric sound-absorbing cotton

The utility model relates to the technical field of sound-absorbing materials and provides pressing-dot compound non-woven fabric sound-absorbing cotton which is good in sound-absorbing and heat-insulating performance, is high in anti-seismic and shockproof performance and can be cut into various shapes according to requirements. The sound-absorbing cotton comprises a surface layer and a bottom layer, wherein the surface layer and the bottom layer are a surface non-woven fabric layer and a bottom non-woven fabric layer, a polypropylene (PP) and polyethylene terephthalate (PET) compound layer is arranged between the surface layer and the bottom layer, and the surface non-woven fabric layer and the bottom non-woven fabric layer are fixed on the PP and PET compound layer through pressing dots. According to the pressing-dot compound non-woven fabric sound-absorbing cotton, the PP and PET compound layer is arranged, so that a product is good in sound-absorbing and heat-insulating performance; the thickness of the