Melt-blown nonwoven materials with high sound-absorption and high thermal-insulation properties

摘要

The average diameter includes a first melt blown non-woven fabric layer of the melt blown micro-fiber of 0.1 to 20 microns, wherein the first meltblown nonwoven layer has an average density of 50 kg / m ³ ~ 300 kg / m ^3, and the base weight of 50 g / m ² ~ 4,000 g / m ^2, and also wind speed 5.3 cm / sec for the measurement conditions in the pressure loss is 2 mmH ₂ O ~ 10,000 mmH ₂ O is characterized by a melt blown nonwoven fabric disclosed is. This is so in the meltblown nonwoven fabric according to the invention is a meltblown nonwoven layer does not contain a general direction to the fibers, such as short fibers, only a pure meltblown microfiber layer structure well developed in the structure represents a dense structure. Therefore, meltblown non-woven fabric of the present invention represents a thin, light, excellent sound absorption and thermal insulation properties, yet.