| 摘要 |
A process for making a single layer or multi-layer non-woven material having improved cross-directional strength and feel, and the non-woven material made thereby, is described. The process provides a non-woven material including at least one layer formed of polymeric continuous filaments. The layer(s) are formed in a continuous sequential manner, i.e. a subsequent layer being formed on top of a preceding layer or layers. Thereafter, in the absence of any pre-bonding, the layer(s) are subjected to hydroentanglement. The basis weight of the non-woven material is from about 17 to 150 gsm. The non-woven material has improved properties based on treating the layer(s) by hydroentanglement. Varying the number of water jets and the pressure of the water allows variance in the properties obtained in the final product. Other physical properties can also be imparted to or changed in the non-woven material by inclusion of an additive in a polymer melt during formation of the filaments, or by topical treatment following treatment of the layers of the non-woven material by hydroentanglement. <IMAGE> |
