Method and apparatus for making two-component fibers

Details Method and apparatus for making two-component fibers Method and apparatus for making two-component fibers

D - Textiles, Paper

01

F

D01F 8/00 (2006.01) D01D 5/30 (2006.01) D01D 5/32 (2006.01) D01D 5/34 (2006.01)

Patent

CA 2179102

In a method and apparatus for making two-component fibers, a polymer (B) which is supplied laterally with respect to a further polymer (A) and a die (12), is at first distributed inside cross-channels (23) provided in a pre-die (14), and then being redirected, through holes (16), in the extruding direction. The channels (23) operate to re-arrange the polymeric mass with the new distribution above the die, so as to eliminate possible discontinuities of the values of the chemical-physical parameters of this mass and which are due to the direction variation the mass is subjected to as it is switched from the side channels (20, 22) to the cross channels (23). Thus, a constant value of the mentioned parameters through the polymer mass being supplied to the extruder is assured.

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