Hollow cotton

Hollow cotton: hollow cotton is actually chemical fiber after processing, fiber raw material for polyester. At present is the market above the well-known brand to use hollow cotton. Drawback is to use long easy to be out of shape to become a block, lack of flexibility, the pillow presents rugged state, especially the inferior chemical fiber pillow produced by some small manufacturers, part of the existence of black-core cotton. So, suggest you are when pillow of choose and buy, choose famous brand with better flexibility as far as possible, do not covet cheap choose that kind of easy deformation inferior chemical fiber pillow.