METHOD FOR SPREADING A TOW OF TEXTILE NON-BRAIDED FILAMENTS, PREFERABLY CHEMICAL OR INORGANIC FILAMENTS

A method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic fibres comprises providing a tow (F) of textile non- braided filaments extending along its own main direction (A) and having a section transverse to the main direction with a predetermined thickness (s) a...

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Bibliographische Detailangaben
1. Verfasser:	ROVELLINI MARCO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONVEYING FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES LAUNDERING MECHANICAL FINISHING OF YARNS OR ROPES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES PACKING PERFORMING OPERATIONS SPINNING STORING TEXTILES TRANSPORTING TREATING TEXTILE MATERIALS BY LIQUIDS, GASES OR VAPOURS TREATMENT OF TEXTILES OR THE LIKE WARPING OR BEAMING YARNS
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Beschreibung
Zusammenfassung:	A method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic fibres comprises providing a tow (F) of textile non- braided filaments extending along its own main direction (A) and having a section transverse to the main direction with a predetermined thickness (s) and a predetermined width (W), feeding the tow (F) along a travel path (P) and spreading the tow (F) in order to increase its width (W) and reduce its thickness (s), defining a spread tow (ST1, ST2). The step of spreading the tow (F) comprises immersing the tow (F) in a bath (6) and generating in the bath (6) a sequence of transverse waves crossing the tow (F) transversely to the main direction (A) in order to separate and place the individual filaments side by side, thereby spreading the tow (F), wherein the tow (F) entering the bath (6) and/or the spread tow (ST1, ST2) extracted from the bath (6) is/are unsized. 一种用于扩展非编织的纺织长丝的丝束的方法，该长丝优选为化学或无机纤维，该方法包括：提供非编织的纺织长丝的丝束(F)，该非编织的纺织长丝的丝束(F)沿其自身主方向(A)延伸并且具有横向于主方向的具有预定厚度(