| 摘要 |
PURPOSE: A multilayer down comforter is provided to secure soft feeling, to enhance heat insulation, and to prevent the penetration of harmful materials. CONSTITUTION: A multilayer down comforter comprises a cotton fabric layer(11), a non-woven fabric layer(12), and a wool layer(13). The non-woven fabric layer is made of a polypropylene material. The surface of the multilayer down comforter has a dual structure of cotton and polypropylene non-woven fabric and is able to be washed using water. |
