Unitika uses two methods - spunbond method and spunlace (hydroentangling) method - to produce nonwoven fabric.
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.
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.
Organize fibers by carding.
Form a drylaid web.
Staple fibers are entangled together by high-pressure liquid stream, and form a nonwoven fabric.