EP0141226A2 - Procédé et appareil pour le traitement thermique de nappes de fibres - Google Patents

Procédé et appareil pour le traitement thermique de nappes de fibres Download PDF

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Publication number
EP0141226A2
EP0141226A2 EP84111228A EP84111228A EP0141226A2 EP 0141226 A2 EP0141226 A2 EP 0141226A2 EP 84111228 A EP84111228 A EP 84111228A EP 84111228 A EP84111228 A EP 84111228A EP 0141226 A2 EP0141226 A2 EP 0141226A2
Authority
EP
European Patent Office
Prior art keywords
fleece
pair
drum
heated
nonwovens
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Withdrawn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
EP84111228A
Other languages
German (de)
English (en)
Other versions
EP0141226A3 (fr
Inventor
Gerold Fleissner
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner 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 Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP0141226A2 publication Critical patent/EP0141226A2/fr
Publication of EP0141226A3 publication Critical patent/EP0141226A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1023—Surface deformation only [e.g., embossing]

Definitions

  • the invention relates to a method for the heat treatment of nonwovens which contain melt fibers, bicomponent fibers or other thermoplastic fibers for solidification, in that the nonwoven is transported through a heated pair of press rolls, and to an apparatus for carrying out this method.
  • the basis weights of, for example, carded nonwovens range from 12 to 600 g per m 2 .
  • the fleece passes through the nip of a pair of press rolls, which consists of internally heated rolls.
  • a cooling sieve drum can also be connected to the pair of cooling rollers to ventilate the fleece with cold air.
  • Nonwovens with a weight per unit area of, for example, 12 g / m 2 are passed through a heated pair of press rolls which, if necessary, simultaneously carry out an embossing process.
  • at least one roller of the calender is profiled / provided.
  • This calendering for consolidating light nonwovens has become established in practice since light nonwovens cannot be pressed sufficiently on the sieve drum.
  • the delivery speed depends on the type of manufacture of the nonwovens. Carded nonwovens, spunbonded nonwovens or also such nonwovens produced by the wet nonwoven laying process can be used.
  • the delivery speeds are currently up to 200 m / min.
  • the delivery speed of the respective fleece is important because the pressure in the pair of calender rolls must be higher if the delivery speed increases. It had to be determined that at delivery speeds over 100 m / min. the pressure in the pair of calender rolls must be set so high to achieve a nonwoven bonding that the delivered product has a board failure even with light nonwovens. In order to obtain a sufficient strengthening of the nonwovens, the compression pressure was partially adjusted so high that an additional cold deformation of the fibers could be determined.
  • the temperature of the rolls must be run considerably higher than the melting temperature of the fibers. As a result, this quickly leads to product damage if the system should slow down due to some greens.
  • the object of the invention is to develop a method by means of which nonwovens delivered at high speed can be consolidated and embossed under the influence of heat, without the need for excessive pressures with rollers heated up too high have to.
  • the invention provides that the fleece is first heated to at least 70-80% of the solidification temperature on a through-flow dryer, on which it is held both during treatment and through which hot treatment gases flow, and immediately thereafter by The pair of press rolls runs, being pressed evenly across the working width and embossed with the addition of temperature.
  • the embossing process is therefore carried out on one Press roll pair carried out while the heating of the fleece is transferred from the pair of calender rolls to an immediately upstream flow dryer.
  • light nonwovens with a delivery speed of 200 m / min. and more on the screen drum first heated to the necessary solidification temperature and then only brought into the desired configuration on the pair of embossing rollers. Now only a small pressure needs to be generated in the embossing roller pair to produce the desired pattern, so that the fleece automatically receives a light, voluminous handle.
  • the device for carrying out the method consists at least of a heatable pair of press rolls, which is directly preceded by a screen drum device. It is possible to surround the sieve drum with an endless sieve pressing the fleece onto the sieve drum, and not to be able to hold the fleece to the sieve drum, but only to prevent the fleece from shrinking.
  • the device screening drum and pair of press rolls are not two individual units connected in series, but because of the method according to the invention, this entire device is a unit. If possible, the pair of press rolls should be arranged within the screen drum device so that the fleece heated on the screen drum has no possibility of cooling until embossing.
  • the sieve drum device consists of a heat-insulated housing 1, in which a sieve drum 2 is rotatably mounted.
  • the fan 3 shown in FIG. 2 is arranged in a separate fan chamber 4 and puts the inside of the screening drum 2 under negative pressure.
  • the fan 3, driven by the motor 5, blows the treatment air on all sides in the direction of the arrows shown around the sieve drum into the treatment chamber 6, which is separated from the sieve drum 2 by a sieve cover 7 to equalize the air flow.
  • the screen drum 2 according to FIG. 1 is surrounded by an endless screen 8 which presses the product lying on the screen drum to prevent shrinkage against the screen drum.
  • the endless belt 8 can, however, also be omitted.
  • a pair of calender rolls 9 is arranged directly below the screening drum 2, through whose pair of squeeze rolls the textile product runs.
  • the pair of squeeze rollers is formed from internally heated cylinders and serves to emboss the continuous fleece 10.
  • the fleece 10 reaches the surface of the sieve drum 2 through which the circulating air flows, via an endless belt 11 approximately at the level of the axis of the sieve drum, and is guided upward around the sieve drum due to the rotation 12 of the sieve drum.
  • a reverse direction of rotation of the screening drum 2 and the pair of press rollers in the area of the incoming goods is also conceivable.
  • the fleece 10 is flowed through by the air heated by the heating device 13 and heated in the process. After rotating the screen drum 2 of almost 270 °, the suction is interrupted due to the inner cover 14, the fleece will detach from the screen drum and run around the upper roller of the pair of press rollers 9, which is also heated. It then passes through the nip 15 where it is embossed with the desired surface.
  • An outgoing endless screen 16 carries the finished fleece to the next processing station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
EP84111228A 1983-09-26 1984-09-20 Procédé et appareil pour le traitement thermique de nappes de fibres Withdrawn EP0141226A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334787 1983-09-26
DE19833334787 DE3334787A1 (de) 1983-09-26 1983-09-26 Verfahren und vorrichtung zum waermebehandeln von vliesen

Publications (2)

Publication Number Publication Date
EP0141226A2 true EP0141226A2 (fr) 1985-05-15
EP0141226A3 EP0141226A3 (fr) 1988-08-17

Family

ID=6210089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111228A Withdrawn EP0141226A3 (fr) 1983-09-26 1984-09-20 Procédé et appareil pour le traitement thermique de nappes de fibres

Country Status (3)

Country Link
US (1) US4812284A (fr)
EP (1) EP0141226A3 (fr)
DE (1) DE3334787A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719887A3 (fr) * 1994-12-13 1998-04-01 FLEISSNER GmbH & Co. KG Maschinenfabrik Méthode et procédé pour le finissage de nappes de fibres cardées

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1233086B (it) * 1989-05-31 1992-03-14 Claudio Governale Procedimento e macchina per ottenere il procedimento per il consolidamento di strutture fibrose non-tessute
US5599420A (en) * 1993-04-06 1997-02-04 Kimberly-Clark Corporation Patterned embossed nonwoven fabric, cloth-like liquid barrier material and method for making same
US5399174A (en) * 1993-04-06 1995-03-21 Kimberly-Clark Corporation Patterned embossed nonwoven fabric, cloth-like liquid barrier material
DE19755229A1 (de) * 1997-12-12 1999-06-24 Johannes Kloeber Vorrichtung und Verfahren zur Herstellung einer diffusionsoffenen Unterspannbahn
US6036896A (en) * 1998-05-21 2000-03-14 Lear Corporation Method for preheating permeable, thermoformable material
US6202998B1 (en) 1999-12-03 2001-03-20 Lear Corporation Apparatus for supporting a sheet material along its peripheral edges
US6872233B2 (en) * 2002-01-31 2005-03-29 Bha Technologies, Inc. High efficiency particulate air rated vacuum bag media and an associated method of production
US20030194547A1 (en) * 2002-04-15 2003-10-16 Fuhrmann Louis P. Membrane composite structure and method of production
US20030192294A1 (en) * 2002-04-16 2003-10-16 Alan Smithies Filter medium
US20060128247A1 (en) * 2004-12-14 2006-06-15 Kimberly-Clark Worldwide, Inc. Embossed nonwoven fabric
US10589134B2 (en) * 2008-01-30 2020-03-17 Kimberly-Clark Worldwide, Inc. Hand health and hygiene system for hand health and infection control
US11234905B2 (en) * 2008-07-11 2022-02-01 Kimberly-Clark Worldwide, Inc. Formulations having improved compatibility with nonwoven substrates
US9949906B2 (en) 2008-07-11 2018-04-24 Kimberly-Clark Worldwide, Inc. Substrates having formulations with improved transferability
CN103498284A (zh) * 2013-09-29 2014-01-08 无锡众望四维科技有限公司 滚筒式烘燥机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909345A1 (de) * 1968-02-14 1970-09-10 Vepa Ag Wirrvlies und Verfahren zu dessen Herstellung
DE2207896A1 (de) * 1966-05-31 1973-08-23 Vepa Ag Siebtrommelvorrichtung zum verfestigen von nadelfilz, filz und aehnlichen produkten
EP0070164A2 (fr) * 1981-07-10 1983-01-19 Chicopee Tissu non-tissé absorbant contenant des fibres coupées conjuguées de polyester/polyéthylène et des fibres
EP0105730A2 (fr) * 1982-09-30 1984-04-18 Chicopee Etoffe liée par courroie à mailles ouvertes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1282103A (fr) * 1960-12-07 1962-01-19 Procédé et machine pour la fabrication d'une nappe de fibres textiles agglomérées par un liant
DE1660791A1 (de) * 1966-05-31 1972-02-17 Vepa Ag Verfahren und Vorrichtung zum Verfestigen von Nadelfilz,Filz und aehnlichen Produkten
US3811988A (en) * 1968-02-14 1974-05-21 Vepa Ag Apparatus for continuous bonding of felt materials by sequential heating and cooling operations
CH616183A5 (en) * 1977-03-18 1980-03-14 Rieter Ag Maschf Process for forming a lap web of constant weight per unit length and an apparatus for carrying out the process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2207896A1 (de) * 1966-05-31 1973-08-23 Vepa Ag Siebtrommelvorrichtung zum verfestigen von nadelfilz, filz und aehnlichen produkten
DE1909345A1 (de) * 1968-02-14 1970-09-10 Vepa Ag Wirrvlies und Verfahren zu dessen Herstellung
EP0070164A2 (fr) * 1981-07-10 1983-01-19 Chicopee Tissu non-tissé absorbant contenant des fibres coupées conjuguées de polyester/polyéthylène et des fibres
EP0105730A2 (fr) * 1982-09-30 1984-04-18 Chicopee Etoffe liée par courroie à mailles ouvertes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719887A3 (fr) * 1994-12-13 1998-04-01 FLEISSNER GmbH & Co. KG Maschinenfabrik Méthode et procédé pour le finissage de nappes de fibres cardées

Also Published As

Publication number Publication date
DE3334787A1 (de) 1985-04-11
US4812284A (en) 1989-03-14
EP0141226A3 (fr) 1988-08-17

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Inventor name: FLEISSNER, GEROLD