METHOD AND DEVICE FOR THE MANUFACTURE OF A SPUNBONDED FABRIC OF CELLULOSIC FILAMENTS

摘要

A method and an apparatus for manufacturing the spun-bonded fabric of cellulose filaments are provided to decompose the spun-bond fabric biologically and easily and to have the optimum intensity property. A filament is spun from the cellulose solution by a spinning protrusion(1). Thereafter, the cellulose filament is introduced into a cooling chamber(2) with at least two cooling sections(2a,2b). The process or cooling air with different speed and/or different temperature and/or different moisture is supplied to the filament of the both cooling sensors. The filament is a lycocell filament. The mixture of water and tri-amine oxide is used as the cellulose solution. A concentration of cellulose of the cellulose solution is 0.5 to 25 wt%. The ratio of the air speed supplied to the first cooling section and the second cooling section is 1:10 to 1:1, preferentially 1.5:10 to 6:10, preferably 1.5:10 to 4.5:10. The temperature of the cooling air supplied to the first cooling section is 18 to 80 degrees in centigrade. The temperature of the cooling air supplied to the second cooling section is 18 to 35 degrees in centigrade.