Multilayer composite flocculus

The utility model discloses a multi-layer composite flocculus which comprises a first heat preservation layer and a second heat preservation layer. The first heat preservation layer and the second heat preservation layer are each composed of a three-dimensional curled hollow fiber framework and filling fibers. A polyurethane film is arranged between the first thermal insulation layer and the second thermal insulation layer; a non-woven fabric layer and a super-hydrophobic fabric layer are sequentially arranged on the side, away from the polyurethane film, of the first heat preservation layer. A silver fiber fabric layer is arranged on the side, away from the polyurethane film, of the second heat preservation layer. A polyester fiber layer is arranged between the first heat preservation layer and the non-woven fabric layer, and a polyester fiber layer is arranged between the second heat preservation layer and the silver fiber fabric layer. 本实用新型公开了一种多层复合絮片，包括第一保温层和第二保温层；所述第一保温层和所述第二保温层均由三维卷曲中空纤维骨架和填充纤维组成；所述第一保