Down and other fibers can be processed into felt by way of needle punching, which has warmth retention property and surmounts the shortcoming that the products are too fat to move.

• 通过针刺的方式,可将羽绒和其他纤维加工成絮毡,既保留了羽绒保暖的特点又克服了制品臃肿的缺点。