PURPOSE: To obtain netlike fiber, having high strength and excellent hygroscopicity and suitable as a material for woven or knitted fabrics, dry nonwoven fabrics, synthetic pulp, wet nonwoven fabrics, etc., in the field especially requiring the hygroscopicity.
CONSTITUTION: This hygroscopic netlike fiber is composed of a polyolefinic polymer (A) and a polyvinyl alcoholic polymer (B) and obtained by finely dispersing the polyvinyl alcoholic polymer (B) in the polyolefinic polymer (A). The method for producing the hygroscopic netlike fiber is characterized by dissolving and mixing the polyolefinic polymer (A) and the polyvinyl alcoholic polymer (B) in the same bath with a solvent and water at a high temperature under a high pressure, using the resultant solution as a spinning solution, passing the spinning solution through a spinning hole having a depressurizing chamber under an autogenous pressure or under a pressure, spinning the solution into the atmosphere and instantaneously vaporizing the solvent just after the spinning.
| JPH07264932 | COVERING SHEET FOR AGRICULTURAL USE |
| WO/1999/006616 | FLASH-SPINNING PROCESS AND FLASH-SPINNING SOLUTION |
MURASE SHIGEMITSU
NISHIMURA HIROSHI
