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1. WO1997013898 - METHOD AND APPARATUS FOR PRODUCING CRIMPED THERMOPLASTICS FILAMENTS

Publication Number WO/1997/013898
Publication Date 17.04.1997
International Application No. PCT/GB1996/002512
International Filing Date 09.10.1996
Chapter 2 Demand Filed 12.05.1997
IPC
D02G 1/16 2006.01
DTEXTILES; PAPER
02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
GCRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS
1Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
16using jets or streams of turbulent gases, e.g. air, steam
D02J 1/08 2006.01
DTEXTILES; PAPER
02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES, OR THE LIKE
1Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
08Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
CPC
D02G 1/16
DTEXTILES; PAPER
02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
1Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
16using jets or streams of turbulent gases, e.g. air, steam
D02J 1/08
DTEXTILES; PAPER
02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
1Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
08Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
Applicants
  • SCS CONSULTANCY SERVICES [GB]/[GB] (AllExceptUS)
  • SLACK, Philip, Trevor [GB]/[GB] (UsOnly)
Inventors
  • SLACK, Philip, Trevor
Agents
  • BAILEY WALSH & CO
Priority Data
9521040.713.10.1995GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR PRODUCING CRIMPED THERMOPLASTICS FILAMENTS
(FR) PROCEDE ET DISPOSITIF SERVANT A FABRIQUER DES FILAMENTS THERMOPLASTIQUES GAUFRES
Abstract
(EN)
A method for producing a substantial helical or zig-zag crimp in a continuous filament (16) is described. The method comprises the steps of generating a turbulence in a thermoplastic material (12) intended to form the filament (16) whilst the thermoplastics material (12) is in its glass transition phase, and maintaining stresses induced in the formed filament (16) by said turbulence while the filament material passes into its crystallised phase.
(FR)
L'invention concerne un procédé servant à produire un gaufrage sensiblement hélicoïdal ou en zigzag dans un filament continu (16). Ce procédé consiste à générer une turbulence dans un matériau thermoplastique (12), de manière à créer le filament (16), tandis que le matériau thermoplastique (12) est dans sa phase de transition vitreuse, et à maintenir les contraintes provoquées dans le filament obtenu (16) par ladite turbulence, tandis que le matériau du filament passe dans sa phase cristallisée.
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