首页>
外国专利>
open system fusion extrusion method for producing a nonwoven fabric and open system device for producing a nonwoven fabric
open system fusion extrusion method for producing a nonwoven fabric and open system device for producing a nonwoven fabric
展开▼
机译:用于生产无纺布的开放系统熔融挤出方法和用于生产无纺布的开放系统装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and associated apparatus for melt extruding a nonwoven web includes providing a plurality of fibers from an extrusion device. The fibers are conveyed through a diverging profile portion of a fiber drawing unit (FDU) that causes the fibers to spread and expand in the machine direction within the FDU. The fibers are then conveyed through a diverging diffusion chamber spaced from the outlet of the FDU to reduce the velocity of the fibers and further spread the fibers in the machine direction. The fibers may be subjected to an applied electrostatic charge in either the diffusion chamber or the FDU. From the outlet of the diffusion chamber, the fibers are laid onto a forming surface as a nonwoven web.
展开▼