Hollow Polyester Fiber

Hollow Fibers are a group of polyester staple fibers with a hole inside the core which is produced using special spinneret. They are mostly used in the manufacturing of products which need high bulk and resiliency.
From the raw material point of view, they are divided into two categories. Hollow Virgin fibers and Hollow Recycled fibers.
Virgin Fibers are produced by moulding from polyethene terephthalate melt. But, recycled Fibers are the result of moulding from recycled PET flakes melt.

Hollow Conjugated Fibers (HC):
Hollow fibers can be simple or conjugated. During the production process, hollow fibers may transform from regular shape to conjugated shape which causes this fiber have more volume, softness, resiliency and recovery after loading. This type of hollow fiber is called Hollow conjugated.

Depending on the final application of the fibers, manufacturer might add some silicon to fibers or not. Silicon helps fibers slip easier on each other.

Applications of Hollow Conjugated Siliconized (HCS):
  • Production of synthetic fillers for pillows and blankets
  • Manufacture of clothes, toys
  • Production of elements of upholstered furniture

    • Applications of Hollow Conjugated Non-Siliconized Fibers (HCnS):
  • Mattress materials of furniture industry
  • Clothing industry
  • Fillers for duvets and pillows

    • Denier Cut Tenacity (Gr/Den) Elongation Defects (mg/100gr) Color
    7±1 64±3 Appx 3 45±5 0-150 White-Black-Other
    15±1 64±3 Appx 3 40±5 0-150 White-Black-Other
    Other deniers Other cuts       Other