Stretchy thermal insulation composite material

Abstract

The present invention provides a stretchy thermal insulation composite material having good stretchability, thermal insulation capability and durability, which comprises a thermal insulation layer and a melt-blown layer; wherein the thermal insulation layer has a unit weight of 20 gsm to 300 gsm and comprises a thermal insulation fiber; the melt-blown layer is disposed on the thermal insulation layer, which has a unit weight of 15 gsm to 100 gsm and comprises an elastic melt-blown fiber; wherein part of the thermal insulation fiber and part of the elastic melt-blown fiber link to each other at an interface between the thermal insulation layer and the melt-blown layer; the material of the elastic melt-blown fiber is an elastic polymer material, which is virgin or recycled; the elastic polymer material is selected from the group consisting of thermoplastic polyurethane, thermoplastic polyester elastomer, polytrimethylene terephthalate and a combination thereof, and the elastic melt-blown fiber has a diameter of 0.1 μm to 35 μm.

Dependencies are inferred from the claim text.