The down product is composed of various elements such as down hair and feather, cloth, and residue master. The quality of the down product may depend on the quality and filling rate of the down hair and feather themselves, as well as other components.
It refers to the hair on the surface that forms the appearance of a bird. The structure of the feather consists of rough, thick quill shaft, and hard branches grown on the shaft. Small feathers (less than 6 cm) are collected from the wings, neck, and chest of aquatic birds originating in Asia, Europe, and the United States. Large feathers (more than 6 cm) are not suitable as a filling material for textile products, so they are used for decoration or get crushed and used for livestock feed.
It refers to the hair collected from aquatic birds damaged by insects or worms or in poor health. The International Down and Feather Bureau (IDFB) categorizes as Slightly Damaged Feather when damaged by less than 25% of the total area of the feather, and Damaged Feather when damaged by more than 25%.