EP0199239A2 - Procédé de traitement ultérieur en plusieurs temps de câbles de fibres avançant de façon continue et appareils nécessaires à l'exécution de ce procédé - Google Patents

Procédé de traitement ultérieur en plusieurs temps de câbles de fibres avançant de façon continue et appareils nécessaires à l'exécution de ce procédé Download PDF

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Publication number
EP0199239A2
EP0199239A2 EP86105094A EP86105094A EP0199239A2 EP 0199239 A2 EP0199239 A2 EP 0199239A2 EP 86105094 A EP86105094 A EP 86105094A EP 86105094 A EP86105094 A EP 86105094A EP 0199239 A2 EP0199239 A2 EP 0199239A2
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EP
European Patent Office
Prior art keywords
cable
conveyor belt
fiber
stuffer box
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86105094A
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German (de)
English (en)
Other versions
EP0199239B1 (fr
EP0199239A3 (en
Inventor
Wolfgang D.I. Bäcker
Wolfram Dr. Wagner
Günther Dr. Hahn
Ralf Dr. Miessen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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Publication date
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Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0199239A2 publication Critical patent/EP0199239A2/fr
Publication of EP0199239A3 publication Critical patent/EP0199239A3/de
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Publication of EP0199239B1 publication Critical patent/EP0199239B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • Continuous filaments (fiber cables) spun from solvents and joined to form ribbons of many individual filaments go through a series of post-treatment stages before being passed on to the secondary spinning mill, that is to say to yarn production.
  • the essential stages are the washing to remove residual solvent, stretching, drying, crimping, crimp fixing and cooling.
  • the threads are run through the washing and drying units with the lowest possible occupancy density, ie as wide and thin a band as possible , it is useful to perform crimping, crimp fixing and cooling in as few devices as possible, which is not only to save process and in investment costs, but also leads to uniform product quality.
  • H is at so far, for example, a fiber ribbon of predetermined width after washing and drying in a plurality of narrow fiber strips divided and each crimped in a separate crimping, the crimping boxes reasons of space, not side by side but offset were arranged in series, and thereby, also the different residence caused the bands between dryer and crimping unit, unevenly crimped sub-tapes are now accepted, so efforts are now being made to use only a crimping apparatus for a certain cable thickness in the form of a wide tape in order to achieve an improvement in product quality, in particular a more uniform product quality in terms of crimping, lateral adhesion of the cable , achievable card speed, grip and dyeability, to name just a few essential parameters.
  • the invention therefore relates to a process for the aftertreatment of washed and dried fiber cables with a minimum mass of 250 ktex by crimping, fixing, cooling and optionally cutting or tearing, characterized in that the bandwidth of the cable running out of the dryer with an occupancy density of at most 5 ktex / cm reduced by at least 50% of the original bandwidth with a corresponding increase in the packing density, crimped in a compression chamber crimp at a compression chamber pressure of 1.5 N / cm 2 to 6.0 N / cm 2 and a compression chamber temperature of 80 to 95 ° C fixes the crimp in or immediately after the stuffer box, deposits the cable on the surface of an air-permeable conveyor belt, blows or sucks air through the fiber package and conveyor belt, and then optionally feeds the cable to a tear converter or a cutting machine.
  • the bandwidth of the cable can be reduced using inclined rods over which the sub-bands are guided.
  • a new and inventive laying over rolls is preferably used.
  • the sliver to be reduced in width is removed from the take-off unit (a) in the form of at least two, preferably equally strong individual belts, the individual belts are guided over separate rollers (b 1 ), (b 2 ), etc. and one above the other on a roller (c ) combined into a band of reduced width, the axis of the roller (a) forming an angle of 1.5 to 7 ° with the axis of at least one of the rollers (b 1 ), (b 2 ) etc.
  • the distance between the roll (a) on the one hand and the rolls (b 1 ), (b 2 ) etc. on the other hand results from the angle mentioned and the desired degree of tape laying.
  • the "laying" of the slivers on a common axis is achieved by pivoting the rollers (rollers) b 1 and b 2 , taking advantage of the effect that there is only one possible track axis for the sliver run , namely the shortest distance from the trigger trio via reel b or b 2 to reel c. Only this axis gives stable tracking, while with all other tracks in the sliver side forces occur that remain effective until the stable axis is reached again. If the rollers b 1 and b 2 are now adjusted about their pivot point, the belt moves in the corresponding direction by the same angular amount. When the rollers are adjusted against each other, it is thus possible to adjust the two belts exactly one above the other and on the central axis of the crimping device.
  • the width of the sliver is preferably halved, that is to say divided into two sub-belts of the same width, which are guided over rollers (b 1 ) and (b 2 ) and combined on the roller (c), the axes of the rollers (b 1 ) and (b 2 ) form with the axis of the roller (a) an equally large but oppositely directed angle of 1.5 to 7 °, preferably 2 to 5 °.
  • Another object of the invention is a device consisting of a roller (a), at least two rollers (b 1 ), (b 2 ) etc. and a roller (c) and corresponding connecting parts which carry the rollers, characterized in that the axis the roller (a) with the axis of at least one of the rollers (b 1 ), (b 2 ) etc. includes an angle ⁇ of 1.5 to 7 °, preferably 2 to 5 ° and laying dimension V, distance L of the roller (a ) of the rollers (b 1 ), (b 2 ) etc. and the angle ⁇ are linked by the following equation:
  • the slivers to be cooled are paneled on the conveyor belt with an occupancy of 10-15 kg / m 2 .
  • the cooling capacity of a 10 m long and 40 cm wide cooling belt is up to 4000 kg / h of fiber material.
  • the air which is sucked or blown through the fiber package expediently has a temperature which is as low as possible, in any case a temperature which is below that of the fiber sliver to be cooled.
  • the air is preferably at ambient temperature.
  • the cooled cable is preferably fed to a cutting edge of a suitable design.
  • the cutting edge is preferably a rotor cutting edge.
  • the air-permeable conveyor belt can also serve as a cooling belt for the crimped fiber package coming from the crimping device.
  • the fiber package is dissolved and drawn off into a strand of crimped threads by the drive of the pull-off member.
  • the dissolved fiber cable is held within the suction path with a force proportional to the negative pressure, the fiber bandwidth and the fiber ribbon length of the dissolved fiber ribbon. If this force is equal to the setpoint specified in the tensile load cell, the drive of the pulling device pulls the fiber cable off at a uniform speed. Falls below the force with which the Diffe renzdruck the fiber cable on the conveyor belt tries to hold the predetermined setpoint, the strain gauge controls the drive of the puller in such a way that the thread cable is pulled off at an increased speed. This shifts the point at which the fiber bundle is released against the direction of the thread running on the conveyor belt.
  • the point at which the fiber package is broken down into a fiber band comes to lie within a certain range, the point shifting only insignificantly during operation.
  • Roll b 2 was placed 40 cm above the extension of the horizontal troughs through a and b l and above a point 40 cm from b 1 .
  • Roll c was placed 80 cm below a point on the horizontal extension through a and b 1 that was 20 cm from b 1 .
  • the angle ⁇ was 2.5 °.
  • the slivers were heated to 90 - 95 ° C using saturated steam.
  • the crimping roller pressure was 600 N / cm
  • the chamber width was 350 mm
  • the stuffer box pressure was 5 N / cm 2 .
  • the crimped slivers left as an endless package ("cake") with a stuffer box width and about 20 mm in height the crimping device and were fed to the cooling and fixing apparatus via a slide.
  • the folding factor (quotient of tape entry speed into the crimp and tape exit speed from the crimp) of the cake was 1:10.
  • the "cake” was taken from the conveyor belt of the cooling and fixing apparatus, the belt speed being 12% greater than the speed of the crimp cake pushed out of the crimping machine. This improved the air permeability of the fiber package.
  • the fiber material reached ambient temperature (cooling air approx. 12,000 m 3 / h) and was now drawn back onto the stretched strip length.
  • a tensile force of 4 N / ktex built up in the belt, with which it was fed to a rotor cutting edge, which cut the material into stacks at a speed of approx. 68 m / min.
  • the diameter of the throat of the knife ring was 80 mm, the cutting ring diameter was approximately 1,200 mm.
  • the cut material was steamed and then packed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP86105094A 1985-04-25 1986-04-14 Procédé de traitement ultérieur en plusieurs temps de câbles de fibres avançant de façon continue et appareils nécessaires à l'exécution de ce procédé Expired - Lifetime EP0199239B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853514863 DE3514863A1 (de) 1985-04-25 1985-04-25 Verfahren zur mehrstufigen nachbehandlung von fortlaufend transportierten faserkabeln und dazu erforderliche vorrichtungen
DE3514863 1985-04-25

Publications (3)

Publication Number Publication Date
EP0199239A2 true EP0199239A2 (fr) 1986-10-29
EP0199239A3 EP0199239A3 (en) 1988-09-21
EP0199239B1 EP0199239B1 (fr) 1991-12-27

Family

ID=6269034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105094A Expired - Lifetime EP0199239B1 (fr) 1985-04-25 1986-04-14 Procédé de traitement ultérieur en plusieurs temps de câbles de fibres avançant de façon continue et appareils nécessaires à l'exécution de ce procédé

Country Status (5)

Country Link
US (1) US4701980A (fr)
EP (1) EP0199239B1 (fr)
JP (1) JPS61252327A (fr)
DE (2) DE3514863A1 (fr)
ES (1) ES8705057A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310240A3 (fr) * 1987-09-30 1991-01-16 Imperial Chemical Industries Plc Câble de filaments
WO2008022947A1 (fr) * 2006-08-19 2008-02-28 Oerlikon Textile Gmbh & Co. Kg procédé et dispositif de fabrication de fibres empilées à partir d'une bande de fibres frisées
EP1990393B1 (fr) * 2007-05-11 2013-05-15 Coroplast Fritz Müller GmbH & Co. KG Bande adhésive en tissu pouvant être déchirée à la main

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893050A (en) * 1932-01-04 1933-01-03 Davis & Furber Tape condenser
US2713182A (en) * 1951-05-31 1955-07-19 Proctor & Schwartz Inc Intermediate feed device for carding machines
NL264284A (fr) * 1960-05-23
US3216064A (en) * 1963-04-23 1965-11-09 Du Pont Method and apparatus for drawingframe blending of slivers in the preparation of yarncomposed of different lengths of fibers
US3248103A (en) * 1964-02-11 1966-04-26 Du Pont Apparatus for stacking a plurality of ribbon-like filament bundles
US3266692A (en) * 1964-04-06 1966-08-16 Monsanto Co Tow stacking assembly
US3578551A (en) * 1964-07-13 1971-05-11 Celanese Corp Splittable tow
US3503100A (en) * 1966-09-08 1970-03-31 Eastman Kodak Co Method of processing large denier tow
DE2224850A1 (de) * 1972-05-20 1973-11-29 Vepa Ag Vorrichtung zum auslenken von bahnfoermigen guetern
US3887969A (en) * 1973-09-14 1975-06-10 Phillips Petroleum Co Apparatus and method for cooling a crimped tow
CH576633A5 (fr) * 1974-03-08 1976-06-15 Rieter Ag Maschf
JPS60476B2 (ja) * 1977-02-14 1985-01-08 鐘淵化学工業株式会社 捲縮トウ塊の連続熱処理方法ならびにその装置
JPS595689B2 (ja) * 1977-07-29 1984-02-06 東洋紡績株式会社 合成繊維トウの形成方法
DE3200271A1 (de) * 1982-01-07 1983-07-21 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Verfahren und vorrichtung zum thermischen fixieren von gestreckten, gekraeuselten endlosfaeden aus thermoplastischem kunststoff
US4475271A (en) * 1982-04-29 1984-10-09 Chicopee Process and apparatus for producing uniform fibrous web at high rate of speed
GB2138578B (en) * 1983-04-19 1986-08-28 Haigh Chadwick Ltd Fibre metering arrangement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310240A3 (fr) * 1987-09-30 1991-01-16 Imperial Chemical Industries Plc Câble de filaments
WO2008022947A1 (fr) * 2006-08-19 2008-02-28 Oerlikon Textile Gmbh & Co. Kg procédé et dispositif de fabrication de fibres empilées à partir d'une bande de fibres frisées
EP1990393B1 (fr) * 2007-05-11 2013-05-15 Coroplast Fritz Müller GmbH & Co. KG Bande adhésive en tissu pouvant être déchirée à la main

Also Published As

Publication number Publication date
JPS61252327A (ja) 1986-11-10
ES8705057A1 (es) 1987-04-16
DE3683076D1 (de) 1992-02-06
DE3514863A1 (de) 1986-11-06
EP0199239B1 (fr) 1991-12-27
US4701980A (en) 1987-10-27
EP0199239A3 (en) 1988-09-21
ES554330A0 (es) 1987-04-16

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