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EP1333117A1 - Procédé et appareil pour l'humidification des matières textiles - Google Patents

Procédé et appareil pour l'humidification des matières textiles Download PDF

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Publication number
EP1333117A1
EP1333117A1 EP02002443A EP02002443A EP1333117A1 EP 1333117 A1 EP1333117 A1 EP 1333117A1 EP 02002443 A EP02002443 A EP 02002443A EP 02002443 A EP02002443 A EP 02002443A EP 1333117 A1 EP1333117 A1 EP 1333117A1
Authority
EP
European Patent Office
Prior art keywords
cooling
temperature
yarn
air
zone
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.)
Withdrawn
Application number
EP02002443A
Other languages
German (de)
English (en)
Inventor
Claus Koch
Rolf Niederlohmann
Klaus Dünner
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.)
Ph Welker GmbH
Original Assignee
Ph Welker 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 Ph Welker GmbH filed Critical Ph Welker GmbH
Priority to EP02002443A priority Critical patent/EP1333117A1/fr
Publication of EP1333117A1 publication Critical patent/EP1333117A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/12Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
    • D06B5/16Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments

Definitions

  • the invention relates to a method and an arrangement suitable therefor Moistening textile material, especially textile yarns and fabrics.
  • Textiles are hygroscopic, ie they absorb moisture. This ability varies from fiber to fiber. Air humidity, temperature and other external influences play a major role. It is currently common in the textile industry to "condition" the yarns that are produced on the spools of natural, synthetic, and mixed fibers and that are wound on bobbins. The aim of conditioning is to bring the moisture lost during the spinning process back into the yarn as much as possible. The residual moisture remaining after spinning is, for example in the case of cotton yarns, of the order of 5 percent by weight, while the commercial product is said to have 8.5 percent by weight of moisture which corresponds to the original yarn moisture.
  • the moisture surcharge is based on the for
  • the unmixed yarns apply surcharges based on the proportion of each fiber in the Mixture calculated.
  • a faster method is the capacitive determination of the yarn moisture with a commercially available measuring device (e.g. the device from Forté).
  • Conditioning takes place in so-called vacuum humidifiers, evacuable containers, the batches of yarn on suitable carriers, e.g. Pallets, thorn carts, Pick up creels, hedgehog trolleys, perforated aluminum trolleys, boxes can.
  • suitable carriers e.g. Pallets, thorn carts, Pick up creels, hedgehog trolleys, perforated aluminum trolleys, boxes can.
  • You evacuate i.e. you bring the one loaded with the spools of thread Apparatus under reduced pressure and creates a saturated steam atmosphere in the apparatus, which corresponds to the reduced pressure (e.g. 55 to 68 ° C).
  • the condensing water penetrates into the package and is removed from the fiber surface or capillary voids in the fibers.
  • the condensation comes to a standstill when the material reaches the saturated steam temperature Has.
  • the process is canceled depending on the desired humidification result, with economic considerations regarding the duration of treatment Role-play.
  • a suitable duration of treatment is e.g.
  • the desired humidity is not achieved. It also includes to take into account that the residual moisture is distributed approximately evenly in all coil layers, while remoistening the outer coil layers preferred and the innermost areas are often hardly captured. This is true especially in so-called "warm countries" to: e.g. are the cotton producers countries in subtropical regions and are also processing countries, i.e. Seat of yarn manufacturers. There is water loss of the fibers because of the higher temperatures in the spinning mills particularly high and therefore rewetting of the yarns produced is particularly important.
  • the current method of conditioning sets the facts especially under these climatic conditions: where the yarns on the the conditioning result is particularly urgent bad.
  • the steam temperature of the saturated steam goes up is limited. Especially when processing paraffin yarns for the Knitting is the highest permissible process temperature in the conditioning process at 65 ° C, i.e. it is saturated steam of reduced pressure, which the available pressure difference between atmospheric pressure and cannot fully utilize the performance of the vacuum pumps.
  • the invention is based on the observation that in addition to those mentioned in the introduction (and generally cannot be influenced further) material constants the difference between the temperature of the saturated steam and the intrinsic temperature of the package to be moistened has a major influence on the moistening efficiency Has.
  • the invention therefore proposes a method, the essential feature of which consists in the textile materials before exposure to water vapor Actively pre-cool the vacuum humidifier (C in the attached sketch).
  • Active Pre-cooling is the action of air or an inert gas such as nitrogen the refrigerated goods referred to a temperature below a chiller brought from room temperature.
  • a suitable cooling zone is expedient lockable cold room or a cooling section provided with locks arranged, the residence time in this cooling zone - apart from economic Considerations - of the desired degree of cooling, but equally as when moistening also influencing factors such as yarn density, type of yarn winding, Fiber and yarn titer depends.
  • the air temperature to which the refrigerated goods are exposed should, if possible, be at least 10 degrees below the ambient temperature but is generally not below 0 ° C useful, otherwise damage to the yarn could occur.
  • the cooling achieved will normally affect the outside and the inside Impact coil layers differently, i.e. while the outer layers already a temperature difference of 20, 30 or more degrees from the starting temperature the coil interior may not yet be noticeable Has experienced cooling.
  • the cooling should therefore take as long as possible until it has also reached the inside of the coil, which is of course due to economic considerations is restricted. In principle, even a slight cooling can significantly improve the conditioning result.
  • a suitable cooling period is generally of the same order of magnitude as subsequent moistening, e.g. ie at 10 minutes to 2 hours, preferably 20 minutes to 40 minutes, i.e. that the dwell times in the zones provided according to the invention or routes or their capacities can be chosen approximately the same size.
  • the Cooling air is supplied at the end of the cooling section at a certain temperature and moves towards the goods to be cooled, where it warms up.
  • the warmed Air can advantageously be recycled, recooled and, if necessary can also be moistened.
  • the vacuum humidifier can also be used to further increase efficiency duplicated or used multiple times. As well can be provided, the refrigerated goods several times between the cooling zone and to move the vacuum humidifier back and forth.
  • cooling air In general, it is advisable to move the cooling air within the cooling zone and in such a way that the coils are intensely exposed to the cooling air on all sides be washed around. Moving the cooling air can be done using conventional fans happen, which can lie entirely within the refrigerator. But it can also be advantageous to use a circulating air process in which the cooling air is initially via external heat exchanger (evaporator of the refrigeration system), then through the cooling zone according to the invention and finally back into the heat exchanger to be led. This method has the advantage that the cooling performance is special can be well monitored and regulated. If a suitable facility is present, it may be advantageous to alternately reduce the cooling space Suspend pressure and bring it back to atmospheric pressure to "ventilate", so to speak, to allow gas exchange between the inside of the coil and to promote the ambient air.
  • external heat exchanger evaporator of the refrigeration system
  • Active precooling, treatment in a vacuum humidifier may be appropriate or repeat both steps.
  • Several cooling zones are useful and vacuum humidifier arranged spatially close one behind the other. In this If it is preferred, both steps in succession a first and then a second or further times.
  • the other steps of the process, including weighing and other common preparation measures the materials for shipping can also be duplicated if necessary be run through without leaving the scope of the invention.
  • the effect of the active cooling according to the invention is thereby advantageous supports that the spools of thread after the spinning process and before the pre-cooling process additionally cool (passively) in or after the production rooms leaves if the local conditions, i.e. the ambient temperature and the available space make such a measure seem reasonable.
  • This process takes place expediently in a zone which is called a buffer zone can denote, and in which the means of transport also to lots (batches) for put the yarn into the cooling zone according to the invention can be.
  • the preferred way of working is between the Spinning process and the cooling zone according to the invention to switch on a buffer zone, the existing differences between the coils' own temperature and the environment, possibly also the intrinsic moisture and the air humidity of the Takes advantage of the environment.
  • the exhaust air from the cooling zone this upstream buffer zone are fed to the remaining cooling capacity exploit, as indicated in the attached figure is.
  • the required energy expenditure and / or the residence time in the active cooling can be minimized and the increase in moisture in the Spools of thread in a desired ratio to energy consumption and / or Dwell time.
  • Slight loss of moisture in the passive and / or active cooling zone can optionally additionally reduced by, for example, supplying steam-saturated air or be balanced.
  • the active cooling zone can be designed as a cooling chamber in the broadest sense; e.g. a cooling tunnel with sliders at both ends is just as suitable as a Boiler with a front cap designed as a gate, which receives the yarn carriers can.
  • a cooling tunnel with sliders at both ends is just as suitable as a Boiler with a front cap designed as a gate, which receives the yarn carriers can.
  • locks Routes may be provided. While in the first case the refrigerated goods through the in the Process tunnels lying on a conveyor system are passed a boiler is usually filled in batches and can be purchased on the entire process route, e.g. also be arranged laterally from this.
  • the selected embodiment can also be based on existing devices judge that were intended for another purpose and for the invention Use should be set up.
  • the yarn packages are expediently located in a buffer zone upstream of the cooling zone preferably in each case for the capacity of the active ones behind Areas suitable for the cooling zone or the vacuum humidifier, i.e. also several Pallets / mandrel wagons / boxes etc. put together and together using Conveyors in the cycle (i.e. semi-continuous) these work zones fed and enforced by this. Possibly the compilation also take place after this buffer zone.
  • the active cooling zone and the Vacuum humidifiers can have a different absorption capacity at all have, however, it should be noted that there are not too large dwellings and Transport times between these components occur so that the cooling effect does not is lost again.
  • the Spools of thread may have been removed from the mandrel carriage, weighed and the Storage fed.
  • the Spools of thread may have been removed from the mandrel carriage, weighed and the Storage fed.
  • the cooling zone can accommodate one or more lots.
  • the necessary cooling capacity results from the dwell time, the amount of yarn and the desired temperature. It can be useful, especially if you already have one Humidification systems, the active cooling zone according to the invention in several to split parallel units. This can also be done from the point of view of Availability of existing facilities on the market can be given the needs of the method according to the invention can be set up.
  • the method is advantageously operated in such a way that by controlling the active Cooling zone optionally either a reduction in temperature during a preselected (constant) time or a reduction to a constant Temperature (variable time) can be set.
  • the cooling capacity should be on the expected Parameters can be matched.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP02002443A 2002-02-01 2002-02-01 Procédé et appareil pour l'humidification des matières textiles Withdrawn EP1333117A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02002443A EP1333117A1 (fr) 2002-02-01 2002-02-01 Procédé et appareil pour l'humidification des matières textiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02002443A EP1333117A1 (fr) 2002-02-01 2002-02-01 Procédé et appareil pour l'humidification des matières textiles

Publications (1)

Publication Number Publication Date
EP1333117A1 true EP1333117A1 (fr) 2003-08-06

Family

ID=8185410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002443A Withdrawn EP1333117A1 (fr) 2002-02-01 2002-02-01 Procédé et appareil pour l'humidification des matières textiles

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Country Link
EP (1) EP1333117A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008034840A1 (de) 2008-07-24 2010-02-04 Xorella Ag Verfahren und Vorrichtung zum Befeuchten von Textilware

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118971A1 (de) * 1981-05-13 1982-12-09 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Verfahren und vorrichtung zum daempfen einer textilen warenbahn
WO1989002002A1 (fr) * 1987-08-29 1989-03-09 Gregor Gebald Procede et dispositif de vaporisage de bobines croisees
DE3835633A1 (de) * 1987-10-19 1989-05-03 Murata Machinery Ltd Anlage zum dampffixieren von spinnspulen
WO1991010002A1 (fr) * 1989-12-22 1991-07-11 Xorella Ag Dispositif pour le traitement thermique et/ou l'humidification de bobines, de canettes et de cones

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118971A1 (de) * 1981-05-13 1982-12-09 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Verfahren und vorrichtung zum daempfen einer textilen warenbahn
WO1989002002A1 (fr) * 1987-08-29 1989-03-09 Gregor Gebald Procede et dispositif de vaporisage de bobines croisees
DE3835633A1 (de) * 1987-10-19 1989-05-03 Murata Machinery Ltd Anlage zum dampffixieren von spinnspulen
WO1991010002A1 (fr) * 1989-12-22 1991-07-11 Xorella Ag Dispositif pour le traitement thermique et/ou l'humidification de bobines, de canettes et de cones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008034840A1 (de) 2008-07-24 2010-02-04 Xorella Ag Verfahren und Vorrichtung zum Befeuchten von Textilware

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