| 摘要 |
PURPOSE:To obtain the subject nonwoven cloth useful for clothing, etc., having excellent strength by producing a nonwoven cloth by dispersing and mixing a glass fiber, an activated charcoal fiber and a thermofusible synthetic fiber in a dispersing medium of water-soluble binder, heating, fusing and subjecting to an acid treatment, etc. CONSTITUTION:Glass fiber containing a silica phase and an acid-soluble phase separated by heat treatment is dispersed and mixed in a dispersing medium containing water-soluble binder (e.g. PVA) together with an activated charcoal fiber and a thermofusible synthetic fiber (e.g. polyethylene fiber), then the dispersing medium is removed to obtain a nonwoven cloth of phase-separated glass fiber. Next, the resultant nonwoven cloth is heated to melt and the molten fibers are partially adhered each other, and then said nonwoven cloth of phase- separated glass fiber is subjected to an acid treatment to elute the acid-soluble phase, thus washed in water and dried to afford the objective nonwoven cloth. |
