PROCESS FOR PREPARING DISCONTINOUS FIBRES

• Main Author: PLESKA JEAN P
• Format: Patent
• Language: English; Romanian
• Published: 28.02.1985
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; GENERAL PROCESSES OF COMPOUNDING; IMPREGNATING OR COATING OF PAPER; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TRIMMINGS; WADDING; WORKING-UP

Inventia se refera la un procedeu pentru producerea unor fibre discontinue prin detenta brusca a unui amestec bifazic, care cuprinde in polimer topit si un solvent sub presiune si temperatura ridicata, prin vaporizarea instantanee a solventului si solidificarea polimerului care, în scopul obtinerii unor fibrile, în mod economic cu proprietati îmbunatatite foloseste un amestec în stare lichida bazic, destins prin ejectare cu o viteza peste 50 m/s printr-un orificiu, în asa fel ca formeaza un conde ejectie care se pulverizeaza la o distanta de orificiu de 0,25...0,10mm prin mijloace mecanice.