METHOD OF MANUFACTURE OF DRAWN PRODUCT (VERSIONS)

METHOD OF MANUFACTURE OF DRAWN PRODUCT (VERSIONS)

PCT No. PCT/GB92/00261 Sec. 371 Date Jul. 20, 1993 Sec. 102(e) Date Jul. 20, 1993 PCT Filed Feb. 13, 1992 PCT Pub. No. WO92/14871 PCT Pub. Date Sep. 3, 1992.An elongate member of cellulosic material, such as fiber, having a reduced tendency to fibrillation is produced by a solvent-spinning process w...

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Bibliographische Detailangaben
1. Verfasser: DZHEJMS MARTIN TEJLOR
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
METALLURGY
NATURAL OR ARTIFICIAL THREADS OR FIBRES
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
SPINNING
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:PCT No. PCT/GB92/00261 Sec. 371 Date Jul. 20, 1993 Sec. 102(e) Date Jul. 20, 1993 PCT Filed Feb. 13, 1992 PCT Pub. No. WO92/14871 PCT Pub. Date Sep. 3, 1992.An elongate member of cellulosic material, such as fiber, having a reduced tendency to fibrillation is produced by a solvent-spinning process which includes the steps of: (i) dissolving cellulose in a solvent miscible with water to produce a dope; (ii) forcing the dope through at least one orifice to produce an elongate form; (iii) passing the elongate form through at least one water-containing bath to remove the solvent and produce the elongate member, and (iv) drying the elongate member to produce a dry elongate member, and is characterized in that the pH of each of the baths through which the elongate form and the elongate member pass during processing between production of the elongate form and the drying of the elongate member is maintained at a figure of 8.5 or less.