EP0458089B1 - Verfahren und Vorrichtung zum Schlichten von Filamentgarn - Google Patents

Verfahren und Vorrichtung zum Schlichten von Filamentgarn Download PDF

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Publication number
EP0458089B1
EP0458089B1 EP91106940A EP91106940A EP0458089B1 EP 0458089 B1 EP0458089 B1 EP 0458089B1 EP 91106940 A EP91106940 A EP 91106940A EP 91106940 A EP91106940 A EP 91106940A EP 0458089 B1 EP0458089 B1 EP 0458089B1
Authority
EP
European Patent Office
Prior art keywords
yarn
sizing
squeezer
stretching
heating
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.)
Expired - Lifetime
Application number
EP91106940A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0458089A1 (de
Inventor
Gerhard Voswinckel
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.)
Gebr Sucker and Franz Mueller & Co GmbH
Original Assignee
Gebr Sucker and Franz Mueller & Co GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gebr Sucker and Franz Mueller & Co GmbH filed Critical Gebr Sucker and Franz Mueller & Co GmbH
Publication of EP0458089A1 publication Critical patent/EP0458089A1/de
Application granted granted Critical
Publication of EP0458089B1 publication Critical patent/EP0458089B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/06—Guiding means for preventing filaments, yarns or threads from sticking together

Definitions

  • the invention relates to a method for sizing filament yarn using one in turn a sizing trough, a pre-dryer with squeezer and wet field, a cylinder dryer and a winder containing sizing system, the yarn being driven by the cylinder dryer at a speed exceeding the transport speed in the squeezer Nassfeld is stretched. It also relates to a device for performing the method.
  • stretching between the squeezing mechanism of the sizing trough and the downstream cylinder dryer is provided in the wet field.
  • the known use of the squeezing unit adjoining the sizing trough and the cylinder dryer as a drafting unit in the area of the wet field of a sizing system means that additional machine units for stretching a thread sheet (in full width) are fundamentally not required.
  • the individual yarns of the yarn sheet to be treated have a defined temperature in the drawing area, namely the essentially constant cooling limit temperature that sets itself automatically after leaving the size bath.
  • the known method has been retained for filament yarns made of polyamide, because these yarns can already be stretched properly at the cooling limit temperature of about 60 ° C. reached in the usual pre-dryer.
  • the material e.g. polyamide or polyester, and the initial state. e.g. POY or LOY
  • degrees of stretching from 1.3 to 3.2 (in the order of magnitude) questionable.
  • the stretching therefore means a considerable permanent lengthening of a yarn heated to the flow temperature and not only a temporary (essentially elastic) stretching (below the flow temperature).
  • the temperature increase of the yarn required for drawing POY or LOY polyester yarn in the area of the pre-dryer would lead to a disturbance in the sizing, for example to chipping Sizing, run, because the size, which has dried prematurely due to the elevated temperature and above all because of the correspondingly longer heating-up time, cannot stretch when the filament yarn is stretched and therefore becomes cracked.
  • an additional heating of the yarn within the pre-dryer would require a careful temperature setting, which should be spared when taking advantage of the inherently constant cooling limit temperature known from DE-OS 36 02 968.
  • the invention has for its object to design the method and the device for stretching filament yarns between the sizing trough and the downstream final dryer so that in the area of the pre-dryer provided for stretching one for stretching POY or LOY filament yarns, in particular polyester yarn and the like, to keep sufficient temperature automatically constant, to reach the cooling limit temperature practically as quickly as before in the package and at the same time premature drying of the size in the drawing area is excluded.
  • the solution according to the invention for the method mentioned at the outset is that the yarn is kept moist at approximately 100.degree becomes.
  • the solution according to the invention is characterized by moistening agents assigned to the wet field and subsequently drying the yarn in the area of the stretching. If the yarn is kept hot and moist enough over its full width at the same time, yarn which is difficult to draw, such as polyester yarn, can also be drawn according to the invention. It is essential to keep the yarn moist or moistened in a zone that is conventionally already assigned to predrying. According to the invention, the onset of the drying process is therefore delayed. However, this does not lead to an extension of the drying area as a whole, because the yarn temperature in the drawing or entry zone is increased compared to the prior art, so that the yarn dries all the faster after leaving the moist drawing zone.
  • the freshly sized yarn - in the full width of a thread sheet - is kept or heated to about 100 ° C., that is to say about 90 to 100 ° C., without any significant drying until it has completely passed through the drawing area and to the desired extent is completely stretched.
  • the heating through the size bath may already be sufficient if the temperature is maintained over the stretching area without yarn drying, but additional heating means can preferably be provided in the squeeze or afterwards in the wet field or stretching area, whereby care should also be taken What is important is that the yarn does not yet dry in the drawing area - especially not even superficially.
  • the additional heating can take place by developing the heat in the package, that is to say by high-frequency heating, or from the outside by contact, convection or radiation heating.
  • the yarn should be kept moist in the drawing area by water vapor saturation of the ambient air.
  • saturated with water vapor In the context of the invention, air “is also understood to mean supersaturated air, so that the setting of the saturation is not critical.
  • the saturation of the air may (firstly, with the exception of high-frequency heating), first of all mean that the yarn is still within the range for stretching coming zone at full transport speed of the sizing machine not only - as before - to the cooling limit temperature of about 60 ° C but also to a temperature of about 90 to 100 ° C, and secondly it is achieved that the size applied to the yarn in the Because of the air saturation and the rapid heating of the yarn, the stretching zone cannot dry prematurely and can be damaged by stretching.Therefore, higher temperatures and shorter dwell times without premature overdrying of the size are inventively, if necessary by additional heating, in connection with the saturation of the air in the treatment zone or stretching zone erm allows.
  • the humidity of the ambient air may only be so high that electrical flashovers do not occur.
  • the short heating-up time plays an important role: the heating-up speed should significantly exceed the drying speed.
  • the entire course of the process of the method according to the invention for the sizing of filament yarns essentially comprises the following steps: the yarn is drawn off from the creel or from the slip tree and the full width of the thread sheet is sized in the size trough and brought to a temperature of approximately 70 to 95 ° C. If the temperature is sufficient from the size, the threads of the thread sheet are stretched in full air in saturated air after passing through the crushing machine. Otherwise the threads are additionally heated in the squeeze mechanism or shortly thereafter, except in the case of high-frequency heating the area around the heating and drawing zones being saturated with water vapor.
  • the sheet of thread After leaving the wet field and thus the treatment zone of the machine intended for stretching, the sheet of thread arrives at a winding tree via a final dryer, for example a cylinder dryer.
  • a final dryer for example a cylinder dryer.
  • the threads can be released, i.e. relaxed, at around 130 to 160 ° C.
  • a squeeze roller e.g. the lower squeeze roller of the squeeze unit
  • the stretching zone or the stretching point is closer to the exit of the thread sheet from the squeeze unit.
  • the stretching point is accordingly further (in the direction of transport) in the wet field.
  • additional heated rollers can also be provided behind the squeezing mechanism for contact heating.
  • a so-called stretching pin which generates a defined stretching point - immediately after the pin.
  • a temperature-controlled rod which is known in practice, can optionally be positioned behind the heating zone of the thread sheet and in front of any partial rods arranged upstream of the drying part of the machine.
  • the surrounding air - except for high-frequency heating - must be saturated with water vapor in the area of the stretching point defined by the heating according to the invention, that is to say the zone of the thread sheet in which the flow temperature of the yarn that enables stretching is reached.
  • the air humidity in this heating zone can be automatically kept at the desired saturation value using a control loop.
  • the control loop there may only be one on Saturation or oversaturation responsive moisture meter, a controller, a steam valve and a steam injection pipe required.
  • the invention also unexpectedly benefits in the treatment of yarns, for example made of polyamide, for the stretching of which the relatively high yarn temperature of approximately 100 ° C. per se would not be necessary.
  • yarns for example made of polyamide
  • the process according to the invention is also applied to yarns which "flow" even at low temperatures and are therefore to be drawn properly, higher speeds can be driven and higher degrees of stretching, for example substantially greater than 1.6 times, can be achieved because of the rapid heating-up time.
  • a group of threads denoted overall by 1 and consisting of individual filament yarns 2, in particular of polyester yarn, runs from a creel (not shown) over a reed 3, a first traction mechanism 4 (delivery mechanism), an inlet roller 5 and an immersion roller 6 through a a sizing trough 7 a sizing bath 8 into a squeezing mechanism 9 arranged at the exit of the sizing trough 7.
  • the crushing unit 9 is followed by a wet field 10, in which the thread family can be divided by wet partial joints 11 (except in the case of high-frequency heating, in which the threads - because of the closely spaced high-frequency electrodes - should run in a single plane).
  • the wet field 10 is followed by a cylinder dryer, designated as a whole by 12, from which the thread sheet 1 runs through a dry field 14 through a drying field 14 onto a tree 15 (winder).
  • the yarn sheet In the area of the wet field 10, the yarn sheet, preferably in an input zone 16, is heated with the aid of an additional heater 17, in the exemplary embodiment with the aid of a radiant heater, in such a way that the yarn temperature assumes approximately 100 ° C. At the same time, the air is saturated with water vapor in the stretching or initial zone 16.
  • the additional heater designated 17 in the drawing can also be designed as a high-frequency or superheated steam heater.
  • the stretching or entrance zone 16 can be heated solely via the steam injection pipe 18.
  • a further additional heater 17 can also be omitted entirely if the entrance zone 16 extends over the squeeze mechanism 9 and if the squeeze mechanism 9 itself, in particular its lower roller 22 is designed as a heating means. If necessary, appropriate means for thermal heating are to be assigned to the heating roller of the squeezing unit 9.
  • the thread sheet 1 pretreated in the wet field 10 or in the entry zone 16 runs for further heating and drying onto the cylinder dryer 12 consisting of a large number of individual cylinders 23.
  • a yarn temperature of around 120 ° C can be set there for further drying and relaxation.
  • the first traction mechanism 4 and / or the crushing mechanism 9 serve as a braking mechanism for the wet field 10, which is at least formed as a stretching area in the input zone 16, while the cylinder dryer 12 and / or the second traction mechanism 13 provide the associated counterforce.
  • a drive 24 and the cylinder dryer 12 a drive 25 can be assigned to the squeeze mechanism 9 with the proviso that the take-off speed of the cylinder dryer 12 is set greater than the delivery speed of the squeeze mechanism 9 in accordance with the desired drawing ratio.
  • the desired stretching of the thread sheet 1 can thus be easily set by a control 26 connected between the drives 24 and 25.
  • the delivery speed of the squeezing unit 9 corresponds to the relatively low speed in the sizing application, while the take-off speed of the cylinder dryer 12 is essentially equal to the winding speed on the tree 15.
  • the traction mechanisms 4 and 13 are used alone or in addition for stretching, they can also be actuated via drives 27 and 28 provided by the control 26.
  • the first traction mechanism 4 is advantageously combined with the crushing mechanism 9 in terms of drive.
  • it is favorable to couple the cylinder dryer 12 to the second train 13 in terms of drive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP91106940A 1990-05-18 1991-04-29 Verfahren und Vorrichtung zum Schlichten von Filamentgarn Expired - Lifetime EP0458089B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4016045 1990-05-18
DE4016045A DE4016045A1 (de) 1990-05-18 1990-05-18 Verfahren und vorrichtung zum schlichten von filamentgarn

Publications (2)

Publication Number Publication Date
EP0458089A1 EP0458089A1 (de) 1991-11-27
EP0458089B1 true EP0458089B1 (de) 1995-06-21

Family

ID=6406730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106940A Expired - Lifetime EP0458089B1 (de) 1990-05-18 1991-04-29 Verfahren und Vorrichtung zum Schlichten von Filamentgarn

Country Status (4)

Country Link
US (1) US5157818A (ja)
EP (1) EP0458089B1 (ja)
JP (1) JP3019168B2 (ja)
DE (2) DE4016045A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683923A5 (de) * 1991-09-23 1994-06-15 Rieter Ag Maschf Streckkammeranordnung.
US5719348A (en) * 1996-01-16 1998-02-17 Blount, Inc. Component holder for cartridge reloading
US6643901B1 (en) * 2000-11-01 2003-11-11 Ppg Industries Ohio, Inc. Loom beams
FR2874473B1 (fr) * 2004-08-19 2008-10-10 Michel Boulard Procede et dispositif pour le traitement thermique d'un materiau souple
CN101210366B (zh) * 2006-12-30 2011-01-12 盐城华特纺织机械有限公司 浆纱机干区自动加湿装置
CN103114398B (zh) * 2013-03-12 2014-08-27 马玉成 一种无捻纱经纱的上浆方法
CN103993443B (zh) * 2014-06-13 2018-07-03 潼南县炫吉中绸有限公司 上浆辊加压装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611172A (en) * 1949-06-30 1952-09-23 Deering Milliken Res Trust Apparatus for treating yarn
US2992626A (en) * 1956-03-22 1961-07-18 Sucker Gmbh Geb Regulation of nipping pressure of pressure rollers in impregnating machines
US2976600A (en) * 1958-08-19 1961-03-28 Kenneth K Edgar Textile yarn sizing apparatus and method
US3046437A (en) * 1958-09-23 1962-07-24 Philips Corp Adjustable arrangement for positioning carbon rods for striking an arc
US3045360A (en) * 1959-07-21 1962-07-24 Ind Ovens Inc Expansible oven strip processing means
GB1202916A (en) * 1966-11-19 1970-08-19 Kawamoto Ind Method of and apparatus for sizing warps
JPS51119559A (en) * 1975-04-12 1976-10-20 Kawamoto Seiki Kk Starching and drying method andapparatus for warp
US4112668A (en) * 1976-10-04 1978-09-12 Monsanto Company, St. Louis, Missouri Method for treating polyester filaments
JPS56159320A (en) * 1980-05-09 1981-12-08 Kawamoto Ind Method and apparatus for simultaneously sizing plural long fiber yarns
US4485063A (en) * 1983-09-15 1984-11-27 E. I. Du Pont De Nemours & Company Process for drawing polyamide yarn
DE3602968A1 (de) * 1986-01-31 1987-08-06 Sucker & Franz Mueller Gmbh Verfahren und vorrichtung zum schlichten von filamentgarn
DE3603968C2 (de) * 1986-02-10 1995-12-21 Gustav Adolf Sporkenbach Verfahren zum Herstellen von thermischisolierten Boden- oder Wandplatten
DE3724751A1 (de) * 1987-07-25 1989-02-09 Rhodia Ag Verfahren zur herstellung von auf zettelbaeumen oder teilkettbaeumen aufgewickelten teilketten oder auf kettbaeumen aufgewickelten ketten aus synthetischen filamentgarnen

Also Published As

Publication number Publication date
JPH05117959A (ja) 1993-05-14
DE59105765D1 (de) 1995-07-27
EP0458089A1 (de) 1991-11-27
DE4016045A1 (de) 1991-11-21
JP3019168B2 (ja) 2000-03-13
US5157818A (en) 1992-10-27

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