PROCESS FOR THE PRODUCTION OF ACRYLIC FIBRE FOR FABRICS WITH A LOW PILLING FORMATION AND ACRYLIC FIBRES THUS OBTAINED

Process for the production of acrylic fibre, for fabrics with a low pilling formation, having a titer within the range of 1.0 to 5.6 dtex, which comprises the wet spinning in a solvent of a copolymer essentially consisting of acrylonitrile, in a quantity within the range of 97 to 99.99% by weight, a...

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Bibliographische Detailangaben
Hauptverfasser:	TEDESCO, RAFFAELE, MION, ENRICO, PANE, SERAFINA, SALVIO, GIUSEPPE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TEXTILES
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Beschreibung
Zusammenfassung:	Process for the production of acrylic fibre, for fabrics with a low pilling formation, having a titer within the range of 1.0 to 5.6 dtex, which comprises the wet spinning in a solvent of a copolymer essentially consisting of acrylonitrile, in a quantity within the range of 97 to 99.99% by weight, and a comonomer with a strong acid group of the sulfonic type having the general formula: CH2=C(R) -CH2SO3-M wherein R represents a hydrogen atom or the CH3 radical whereas M represents a hydrogen atom or an alkaline metal in a quantity ranging from 0.01 to 3% by weight. L'invention concerne un procédé de fabrication d'une fibre acrylique pour tissus avec une faible formation de boulochage, ayant un titre compris entre 1,0 et 5,6 dtex, le procédé comprenant le filage humide dans un solvant d'un copolymère consistant essentiellement en de l'acrylonitrile, en une quantité comprise entre 97 et 99,99 % en poids, et d'un comonomère comportant un groupement acide fort de type sulfonique de formule générale : CH2=C(R)-CH2SO3-M, dans laquelle R représente un atome d'hydrogène ou le radical CH3 tandis que M représente un atome d'hydrogène ou un métal alcalin en une quantité comprise entre 0,01 et 3 % en poids.