| 摘要 |
PURPOSE: A process of preparing a non-woven fabric capable of being solubilized absolutely in water at room temperature and causing no environmental pollution is provided. Whereby, the fabric can be used as a foundation cloth for embroidery, a disposable head rest of an airplane seat and agricultural mulch films. CONSTITUTION: A non-woven fabric containing cellulose fibers as a main material is mercerized with an aqueous caustic soda solution in a solvent, etherification of the mercerized fabric is carried out by adding a monochloro acetic acid solution, the fabric is neutralized with a hydrochloric acid solution to a pH of about 6.0 to 9.0 and then the fabric is dehydrated and dried. The dissolving time of the non-woven fabric can be controlled depending on the amount of the solid monochloro acetic acid, solid sodium hydroxide and hydrochloric acid to be used. |
