Process for continuous production of viscose rayon yarns of high whiteness

Process for continuous production of viscose rayon yarns of high whiteness

The invention relates to a continuous process for producing viscose rayon yarns of high whiteness by extruding a viscose solution into a coagulation bath, drawing and coagulating the extruded filaments and then moving these filaments in an essentially spiral path while subjecting them to all the tre...

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Hauptverfasser: PAOLETTI,UGO, LEONCINI,NOVELLO, ANGELINI,GIANFRANCO, PALLESI,BICE
Format: Patent
Sprache:eng ; ger
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
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creator PAOLETTI,UGO
LEONCINI,NOVELLO
ANGELINI,GIANFRANCO
PALLESI,BICE
description The invention relates to a continuous process for producing viscose rayon yarns of high whiteness by extruding a viscose solution into a coagulation bath, drawing and coagulating the extruded filaments and then moving these filaments in an essentially spiral path while subjecting them to all the treatments which are necessary for producing the ready-made or finished yarn. The process proposes completing the coagulation of the filaments following exit from the spin bath, to a coagulation index not higher than 1, and effecting a treatment with water having a non-alkaline pH.
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language eng ; ger
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subjects APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
title Process for continuous production of viscose rayon yarns of high whiteness
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