POLYESTERIC ETIRATED YARNS OBTAINING PROCESS

The process comprises spinning and melting of granules of mol. wt. 20000-24000 with 0.640-0.660 intrinsic viscosity, dried in a fluidised bed at 160+-20 deg.C. The resulting filaments are drawn with air cooling at 20-24 deg.C at 80+-10% relative humidity. Wetting with antistatic agent and coiling at...

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Bibliographic Details
Main Authors VLADEANU LUMINITA;RO, CIOBANU MIRCEA;RO, COZMA VASILE;RO, CIOBANU TEODORINA;RO, AGHITOAIE VIORICA;RO
Format Patent
LanguageEnglish
Romanian
Published 16.08.1991
Edition4
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
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Summary:The process comprises spinning and melting of granules of mol. wt. 20000-24000 with 0.640-0.660 intrinsic viscosity, dried in a fluidised bed at 160+-20 deg.C. The resulting filaments are drawn with air cooling at 20-24 deg.C at 80+-10% relative humidity. Wetting with antistatic agent and coiling at up to 1200 m/minute are followed by drawing (from 1:4.2 - 1:4.4) at 500+-50 m/minute in the temp. range 190+-5 deg.C.
Bibliography:Application Number: RO19880132167