Manufacturing Process

Unitika uses two methods - spunbond method and spunlace (hydroentangling) method - to produce nonwoven fabric.

Spunbond method

Filaments spun by melting resin chips are spread on a net directly from a spinning nozzle and randomly deposited to form a web and then bonded in the form of a sheet through thermal bonding or by other means.

Spunbond method

  • Melt polymer chips(raw material).
  • Form filaments by spinning the molten polymer and stretching the molten filaments.
  • Separate and spread fiber bundles of many filaments, and lay down the fibers on a net to form a web.
  • Bind the fibers in the form of a sheet through thermal bonding and perform embossing.
  • Perform special in-line processing such as calendar processing.
  • Wind up the sheet.

Spunlace (hydroentangling) method

Staple fibers such as cotton are formed a drylaid web by carding. High-pressure liquid stream is performed on the drylaid web, a nonwovens fabric is formed by entangling the staple fiber.

Spunlace (hydroentangling) method

  • Organize fibers by carding.
  • Form a drylaid web.
  • Staple fibers are entangled together by high-pressure liquid stream, and form a nonwoven fabric.
  • Perform special in-line processing.
  • Dry and wind up the sheet.