Patent ID: 11946167
Assignee: MONTEFIBRE MAE TECHNOLOGIES S.R.L.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 14:
15. A wet-spinning apparatus, comprising two or more washing or washing and stretching units U, arranged in sequence and fluidly connected to each other, said apparatus comprising:
a washing tank configured for containing a washing solution;
wherein said solution is fed to a first end of said tank at a first temperature T1 and wherein said solution is discharged at a second end of said tank at a second temperature T2, said temperature T1 being higher than said temperature T2;

mechanical means configured for moving a tow or bundle of filaments from said first end to said second end of the tank;
wherein in the washing tank, the movement direction of the washing solution is in co-current with respect to the movement direction of the tow or bundle of filaments; and
further wherein the feeding of the washing solution is in countercurrent with respect to the movement direction of the tow or bundle of filaments with respect to the sequential arrangement of the washing or washing and stretching units U.