High-performance polyester profiled fiber sound-absorbing cotton for automobile

The invention discloses high-performance polyester profiled fiber sound-absorbing cotton for an automobile, and relates to a preparation method, a product and application of the high-performance polyester profiled fiber sound-absorbing cotton for the automobile. The preparation method of the high-performance polyester profiled fiber sound-absorbing cotton for the automobile comprises the steps asfollows: 20%-42% of low-melting-point fibers, 30%-46% of polyester fibers in a flat section form and 12%-50% of jean cotton are adopted, non-woven treatment is conducted through a physical method, andthe sound-absorbing cotton is produced through a fiber air laying process. The obtained product is used for automotive trim and the like. According to the invention, different finenesses of the flatsection of the polyester fiber are screened to obtain the optimal fiber form and the optimal fineness, and the physical method is used for non-weaving treatment, so that the polyester fiber has an excellent sound absorption fun