Patent ID: 9155251
Filing Date: 2015-10-13
Classification: A01G,D01D,D01F,D02G

Abstract:
1. A method for producing an artificial peat moss from natural cellulose fiber comprising the following steps in successive order: (a) producing a preliminary quasi-dope of mixed cellulose mucilage by combining a wood pulp with a dissolving solvent and a stabilizer, wherein the dissolving solvent is N-methylmorpholine N-oxide (NMMO) and the stabilizer is 1, 3-phenylene-bis 2-oxazoline (BOX); (b) blending and dissolving the preliminary quasi-dope of mixed cellulose mucilage of step (a) by stirring the preliminary quasi-dope of mixed cellulose mucilage at a temperature of 50° C.-70° C. in a high speed agitator; (c) producing a homogenized mucilaginous dope by dehydrating the blended and dissolved preliminary quasi-dope of mixed cellulose mucilage of step (b) in a vacuum film evaporator at a temperature of 80° C.-120° C. for 5 minutes; (d) producing a filament bundle of cellulose by feeding the homogenized mucilaginous dope of step (c) into a spinning machine via a metering pump, then spinning the homogenized mucilaginous dope and using a dry-jet wet spinning method to extrude the homogenized mucilaginous dope from the spinneret; (e) producing a plurality of spinning tows each comprising an untwisted bundle of continuous filaments of about 2,500 deniers by coagulating the filament bundle of cellulose of step (d) in a coagulation bath then rinsing the coagulated filament bundle of cellulose with water; and (f) producing the artificial peat moss by twisting, calendering and cutting the plurality of spinning tows of step (e) using the following sub-steps: