Light and thin sound-absorbing material and method of manufacturing same
AssigneesHyundai Motor Company, Kia Corporation
InventorSeong Je Kim
Life of this patent
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Abstract
An embodiment sound-absorbing material including a surface layer including low-melting (LM) fibers and melt-blown (MB) fibers and a sound-absorbing layer disposed on at least one side of the surface layer. An embodiment method of manufacturing a sound-absorbing material includes spinning melt-blown (MB) fibers, manufacturing a surface layer by mixing the melt-blown (MB) fibers with low-melting (LM) fibers, laminating a sound-absorbing layer on the surface layer, and hot-pressing a surface layer/sound-absorbing layer in which the sound-absorbing layer is laminated on the surface layer.
Claims20
A sound-absorbing material comprising:
- a surface layer comprising low-melting (LM) fibers and melt-blown (MB) fibers;
- and
- a sound-absorbing layer disposed on at least one side of the surface layer;
- wherein the low-melting (LM) fibers and melt-blown (MB) fibers are mixed in the surface layer;
- and
- wherein the surface layer comprises, based on a total of 100 wt % of the surface layer, 10 to 50 wt % of the low-melting (LM) fibers and 50 to 90 wt % of the melt-blown (MB) fibers.
A method of manufacturing a sound-absorbing material, the method comprising:
- spinning melt-blown (MB) fibers;
- manufacturing a surface layer by mixing the melt-blown (MB) fibers with low-melting (LM) fibers, wherein the surface layer comprises, based on a total of 100 wt % of the surface layer, 10 to 50 wt % of the low-melting (LM) fibers and 50 to 90 wt % of the melt-blown (MB) fiber;
- laminating a sound-absorbing layer on the surface layer;
- and
- hot-pressing a surface layer/sound-absorbing layer in which the sound-absorbing layer is laminated on the surface layer.
A method of manufacturing a sound-absorbing material, the method comprising:
- forming a surface layer comprising low-melting (LM) fibers and melt-blown (MB) fibers;
- and
- forming a sound-absorbing layer on at least one side of the surface layer;
- wherein the low-melting (LM) fibers and melt-blown (MB) fibers are mixed in the surface layer;
- and
- wherein the surface layer comprises, based on a total of 100 wt % of the surface layer, 10 to 50 wt % of the low-melting (LM) fibers and 50 to 90 wt % of the melt-blown (MB) fibers.
Dependencies are inferred from the claim text.