Special-shaped filament with random thermal-conglutination

Abstract

A stochastic thermal-conglutination profiled filament is disclosed. The profiled filament varies, according to the change of the process condition, in one or more of fiber structure, total linear density, monofilament density, number of monofilaments, shape of cross section of the monofilament, radial degree of profile of the monofilament DR %, three-dimensional structure of the monofilament, and physical property of the monofilament along the axial direction of the filament of the infinite length.

1 . A stochastic thermal-conglutination profiled filament, wherein the profiled filament varies, according to change of process condition, in one or more of fiber structure, total linear density, monofilament density, number of monofilaments, shape of cross section of the monofilament, radial degree of profile of the monofilament DR %, three-dimensional structure of the monofilament, and physical property of the monofilament, along the axial direction of the filament of infinite length. 
     
     
         2 . The stochastic thermal-conglutination profiled filament of  claim 1 , wherein the profiled filament is made via controlling and adjusting spinning melt supplied from a melt dosing pump periodically without changing the spinning speed of the spinning package so that the total linear density and the monofilament density of the filament yarn spun from the spinneret plate also change periodically; and wherein change of the melt pressure of the spinning component causes the extent of expansion of polymer elastomers spun from spinneret slits to change, the polymer elastomers collide with each other and thus the conglutination state is any one of reliable conglutination, unreliable conglutination and non-conglutination, and the number of monofilaments changes regularly and periodically. 
     
     
         3 . The stochastic thermal-conglutination profiled filament of  claim 2 , wherein at a position between 70 mm and 120 mm under the spinneret plate is provided with swing cooling air perpendicular to direction of motion of fiber, polymer elastomers just spun from the spinneret slits are subject to regular and periodical perturbance by the swing cooling air, causing the conglutination points at an unstable state of perturbance, that is to say, location of conglutination points is subject to stochastic change; conglutination section is diversified; and monofilament density, number of the monofilaments and shape of cross section of the monofilament are also subject to synchronal and stochastic change. 
     
     
         4 . The stochastic thermal-conglutination profiled filament of  claim 3 , wherein the spinneret plate has three spinneret slits comprising one long spinneret slit and two short spinneret slits, conglutination status of polymer elastomers spun from the spinneret slits is subject to periodic variation; the three filaments have different linear densities and contractibility rates for solidification as well as stochastically changed inner stress and mutual pulling force, causing the profiled filament is shaped like a helical structure, direction of spiral is of levorotation sometimes or dextrorotation sometimes, the fiber is straight sometimes or winding sometimes, and fiber surface is sunken sometimes or raised sometimes. 
     
     
         5 . The stochastic thermal-conglutination profiled filament of  claim 4 , wherein polymer elastomers spun from the three spinneret slits comprising one long spinneret slit and two short spinneret slits can be either made from the same constituent material subject to mutually stochastic conglutination or made from two constituent materials of different performances subject to composite stochastic conglutination; wherein particularly, two constituent materials of different contraction performances subject to composite stochastic conglutination have richer stereoscopic effect.