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1. WO1990004055 - IMPROVED PROCESS FOR HIGH SPEED, MULTI-END POLYESTER HIGH PERFORMANCE TIRE AND INDUSTRIAL YARN

Publication Number WO/1990/004055
Publication Date 19.04.1990
International Application No. PCT/US1989/003230
International Filing Date 26.07.1989
Chapter 2 Demand Filed 28.03.1990
IPC
D01D 5/16 2006.01
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
12Stretch-spinning methods
16using rollers, or like mechanical devices, e.g. snubbing pins
D02J 1/22 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
22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
CPC
D01D 5/16
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
12Stretch-spinning methods
16using rollers, or like mechanical devices, e.g. snubbing pins
D02J 1/22
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
22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
Applicants
  • ALLIED-SIGNAL INC. [US]/[US]
Inventors
  • ROWAN, Hugh, Harvey
  • NEAL, James, Gordon
Agents
  • THROWER, William, H.
Priority Data
258,28113.10.1988US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED PROCESS FOR HIGH SPEED, MULTI-END POLYESTER HIGH PERFORMANCE TIRE AND INDUSTRIAL YARN
(FR) PROCEDE AMELIORE DE PRODUCTION A VITESSE ELEVEE, DE PNEU ET DE FIL INDUSTRIEL EN POLYESTER DE HAUT RENDEMENT A MULTIPLES EXTREMITES
Abstract
(EN)
This invention provides an improvement in a high speed process to produce high performance multi-end polyester yarn. The process is extruding molten polyester from a spinnerette to form filaments (14, 15), then cooling, lubricating and advanced the filaments to a forwarding roll system at the speed of from about 1000 - 4000 meters per minute so that a partially oriented yarn is produced, then feeding the filaments from the forwarding roll (1, 1a) system to a first draw roll system to partially draw the yarn, then feeding the partially drawn yarn to a second draw roll system (2, 3, 5, 6) having a draw point localizing device (4) then feeding the filaments from the draw roll system to a conditioning roll (7, 8) system and finally taking up the filaments. The improvement is the use of matte finish on godet rolls having an arithmetic mean roll surface roughness value of from between about 35 microinches and about 120 microinches to feed and withdraw yarn to and from a draw point localizing device in the second draw roll system. This combination enables multiple ends of the filaments to be advanced through a single set of forwarding, drawing and conditioning rolls and yarn mechanical quality remains at a high level of acceptance.
(FR)
L'invention concerne une amélioration relative à un procédé de production à vitesse élevée de fil en polyester à extrémités multiples de haut rendement. Ledit procédé consiste à extruder du polyester fondu provenant d'une filière afin de former des filaments (14, 15), puis à refroidir, à lubrifier et à avancer les filaments jusqu'à un système de cylindres d'acheminement à une vitesse comprise entre environ 1000 et 4000 mètres par minute de manière à produire un fil partiellement orienté, puis à amener les filaments des cylindres d'acheminement (1, 1a) jusqu'à un premier système de cylindres d'étirement afin de partiellement étirer le fil, à amener le fil partiellement étiré jusqu'à un second système (2, 3, 5, 6) de cylindres d'étirement comportant un dispositif (4) de localisation de point d'étirement, à amener les filaments provenant du système de cylindres d'étirement jusqu'à un système de cylindres (7, 8) de conditionnement et enfin à enrouler les filaments. L'amélioration réside en l'utilisation d'une finition matte sur des cylindres à godets ayant une valeur moyenne arithmétique de rugosité de surface de cylindre comprise entre environ 35 et environ 120 micropouces afin d'amener le fil dans un dispositif de localisation de point d'étirement et de retirer le fil dudit dispositif lequel se trouve dans le second système de cylindres d'étirement. Cette combinaison permet d'avancer des extrémités multiples des filaments dans un seul ensemble de cylindres d'acheminement, d'étirage et de conditionnement, la qualité mécanique des fils demeurant à un niveau élevé d'acceptation.
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