COMPLEX THREAD FORMING SPINNERET Russian patent published in 2017 - IPC D01D4/02 

FIELD: manufacturing technology.

SUBSTANCE: complex thread making spinneret has first surface and second surface parallel to first surface, and comprises plurality of spinning holes, wherein each spinning hole contains: inlet opening, tapered channel and cylindrical shaped capillary. All capillaries outlet sides are located in spinneret second surface plane, wherein spinneret comprises, at least, first group of spinning holes with capillaries and second group of spinning holes with capillaries, wherein second group of spinning holes capillaries have smaller L/D ratio, than first group of spinning holes capillaries, and all capillaries have same diameter, and all capillaries diameter is 100 mcm or less, so that complex thread, made with help of spinneret, has distribution of elementary threads of same diameter.

EFFECT: according to invention, to reduce elementary threads breakage during complex thread molding, drawn with high drawing spinneret is used.

14 cl, 1 dwg, 1 tbl, 2 ex