EP2017206B1 - Dispositif pour la fabrication d' un voile non-tissé spunbond - Google Patents

Dispositif pour la fabrication d' un voile non-tissé spunbond Download PDF

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Publication number
EP2017206B1
EP2017206B1 EP07012794.9A EP07012794A EP2017206B1 EP 2017206 B1 EP2017206 B1 EP 2017206B1 EP 07012794 A EP07012794 A EP 07012794A EP 2017206 B1 EP2017206 B1 EP 2017206B1
Authority
EP
European Patent Office
Prior art keywords
roller
profiling
nonwoven web
profiled
transfer roller
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.)
Active
Application number
EP07012794.9A
Other languages
German (de)
English (en)
Other versions
EP2017206A1 (fr
Inventor
Walter Kühn
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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 Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to DK07012794.9T priority Critical patent/DK2017206T3/da
Priority to EP07012794.9A priority patent/EP2017206B1/fr
Priority to ES07012794.9T priority patent/ES2507099T3/es
Priority to US12/147,562 priority patent/US7849902B2/en
Priority to CN2008101317742A priority patent/CN101333729B/zh
Publication of EP2017206A1 publication Critical patent/EP2017206A1/fr
Application granted granted Critical
Publication of EP2017206B1 publication Critical patent/EP2017206B1/fr
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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Definitions

  • the invention relates to a device for producing a spunbonded nonwoven web with a Ablegesiebband on which fibers can be stored to the nonwoven web.
  • the fibers are in particular fibers of thermoplastic material and preferably filaments or continuous filaments made of thermoplastic material.
  • Under the Ablegesiebband is usually and preferably a suction device, with the air in the storage area of the fibers is sucked through the Ablegesiebband.
  • the reject screen belt is normally passed over a plurality of rollers and thus results in contact between the roller surfaces and the screen belt.
  • a part of the fibers through the Ablegesiebband ie sucked between the warp and weft threads of Ablegesiebbandes.
  • shooters One speaks of so-called "shooters”.
  • the known devices have in the transfer region of the nonwoven web to a transfer roller, which is usually wrapped by the wire belt with a relatively large angle of wrap. In this transfer region, the nonwoven web is usually transferred from the wire to a calender, in which the nonwoven web is fed.
  • the invention teaches a device for producing a spunbonded nonwoven web with a reject screen on which fibers can be deposited to the nonwoven web, wherein the reject screen is guided over a roller and wherein the roller surface of the roller is profiled with the proviso that the reject screen is only in contact with the profiling maxima of the roller surface.
  • fibers / filaments of thermoplastic material are deposited on the Ablegesiebband.
  • the fibers are continuous filaments.
  • the fibers / filaments are cooled before being deposited on the Ablegesiebband and stretched or aerodynamically stretched.
  • the fibers / filaments are passed through at least one diffuser before depositing on the Ablegesiebband.
  • the roller profiled in accordance with the invention is designed as a transfer roller for the nonwoven web.
  • the transfer roller means that the nonwoven web moved via the transfer roller is transferred in the conveying direction behind the transfer roller to a processing device for the nonwoven web or to a further conveying device (conveyor belt, screen belt or the like).
  • the transfer roller surface of the transfer roller is profiled or provided with the Profiltechniksmaxima and Profiltechniksminima.
  • the transfer roller is at the same time a drive roller for driving the depositing screen belt.
  • the profiled roller or the profiled transfer roller is set up to transfer the nonwoven web to a calender.
  • the nonwoven web is fed after its movement on the transfer roller in the conveying direction behind the transfer roller of a calender or fed between two calender rolls of a calender.
  • the reject screen belt wraps around the roller, preferably the transfer roller, with a wrap angle of at least 70 °, preferably of at least 90 ° and very preferably of at least 120 °.
  • the Ablegesiebband wraps the present invention profiled transfer roller with a wrap angle of 125 ° to 145 °, for example, with a wrap angle of 135 ° or of about 135 °.
  • at least 70%, preferably at least 80% and particularly preferably at least 90% of the roll surface is profiled.
  • the said percentage surface area of the roller is then provided with the profiling maxima and the profiling minima, which are arranged alternately on the roller surface.
  • a regular distribution of the profiling maxima and profiling minima on the roll surface is provided.
  • a particularly preferred embodiment of the invention is characterized in that the profiling of the roll surface is in the form of circumferential grooves and webs over the circumference of the roll. The webs then form the profiling maxima and the grooves form the profiling minima.
  • this recommended embodiment of the invention as it were linear contact zones between the roller and the Ablegesiebband realized.
  • a preferred embodiment of the invention is characterized in that the position of the contact points of the Ablegesiebbandes with the roller during movement of the Ablegesiebbandes or during rotation of the roller due to the profiling of the roller continuously changes. It is also within the scope of the invention that the position of these contact points changes discontinuously due to the profiling of the roller.
  • the profiling is formed in the form of at least one thread. The aforementioned webs (Profil michsmaxima) and grooves (Profil michmaschinesminima) are then so part of a thread with a certain slope. Due to the pitch of the thread, the contact points between the roll surface and Ablegesiebband migrate continuously in an advantageous manner.
  • each thread extends from the roll center (with respect to the longitudinal extent of the roll) to a front end of the roll.
  • the first thread is right-handed and the second thread formed left-handed.
  • the webs and grooves do not rotate over the entire circumference of the roller. In that regard, a discontinuous groove formation in the roll surface is possible.
  • the depth t of the profiling minima or the depth t of the grooves is 0.05 to 1.0 mm, preferably 0.05 to 0.6 mm and preferably 0.1 to 0.3 mm.
  • the profiling minima or grooves provided on a roll can also have different depths t or the depth t of a profiling minimum or a groove can change along the profiling minimum or along the groove, in particular change continuously.
  • a particularly preferred embodiment of the invention is characterized in that the profiled roller (macro-profiling) additionally has a micro-profiling on its surface.
  • the profiling maxima of the profiled or macro-profiled roll surface preferably additionally have the microprofiling on their surface.
  • the surfaces coming into contact with the depositing screen belt are micro-profiled by the webs, which run at least partially over the circumference of the roller.
  • the roll surface or the surfaces of the profiling maxima are micro-profiled with the proviso that arise only selective contact areas for the Ablegesiebband.
  • the micro-profiling is realized in the form of a globular surface topography.
  • the Micro profiling of the roll surface or the Profiltechniksmaximaober Assembly produced by thermal spraying or electroplating. It is within the scope of the invention that the microprofiling maxima of the microprofile have convexly outwardly curved surfaces. According to a preferred embodiment, the surfaces of the microprofiling maxima are spherical and / or ellipsoidal in shape.
  • the inventive design of the roller, preferably transfer roller, the known from the prior art disadvantages can be effectively avoided.
  • the invention is based on the finding that a contact reduction or contact minimization between Ablegesiebband and roller leads to the solution of the technical problem of the invention. - As already explained above, when depositing the fibers on the Ablegesiebband a clearly visible amount of fibers through the Ablegesiebband or between the warp and weft threads of Ablegesiebbandes sucked through (shooter).
  • a transfer roller is provided, which diverts the Ablegesiebband immediately in front of a calender with a wrap angle of about 135 °. The nonwoven web is transferred here to the calender or to the calender rolls.
  • the slotted filaments are clamped in the contact zone between transfer roller surface and Ablegesiebband and pulled opposite to the conveying direction.
  • the nonwoven web is pulled in by the calender rolls and conveyed in the conveying direction. If it fails to pull the collapsed and clamped filaments out of the wire, the filaments break off and the result is the already explained fiber pulp ("snowflake").
  • the torn-off fibers which are not removed as a "snowflake” and thus remain between the warp and weft threads of the wire belt, are pressed by the rolls of the wire belt machine into and onto the lay-off wire belt to form traps for the nonwoven web on the laydown wire belt.
  • the roll preferably the transfer roll
  • profiling macro-profiling
  • a very particularly preferred embodiment which has proven particularly useful in this connection, is characterized in that the surfaces of the profiling maxima (the macroprofiling) are additionally micro-profiled.
  • nonwoven webs can be produced with remarkably increased quality by the inventive design of the roller / transfer roller.
  • measures according to the invention can be implemented with relatively little effort and cost. It is also no problem to equip existing systems with the rollers / transfer rollers according to the invention.
  • the Fig. 1 shows a device for producing a spunbonded nonwoven fabric with a Ablegesiebband 1, on the fibers 2 are made of thermoplastic material to a nonwoven web 3 can be stored.
  • the fibers 2 are preferably and in the exemplary embodiment endless filaments.
  • the Ablegesiebband 1 is guided over a roller or transfer roller 4 and wraps around this transfer roller 4 with a wrap angle of about 135 °.
  • the nonwoven web 3 is transferred to a calender 5 or fed between two calender rolls 6, 7.
  • the roll surface of the transfer roll 4 is provided with a profiling (macroprofiling), which consists of profiling maxima and profiling minima.
  • the guided over the transfer roller 4 Ablegesiebband 1 is only with Profiltechniksmaxima the roll surface in touching contact.
  • the profiling (macro-profiling) of the roll surface in the form of grooves 8 (Profil michsminima) and webs 9 (Profil michsmaxima) is formed, which preferably and in the embodiment over the circumference of the transfer roller 4 rotate.
  • Fig. 3 are shown in an enlarged section, the warp threads 10 of the Ablegesiebbandes 1 above the macro-profiled with grooves 8 and webs 9 roller surface of the transfer roller 4. Below the warp threads 10 are sucked through the Ablegesiebband 1 or slotted fibers 2 recognizable. Due to the macroprofiling of the roll surface with grooves 8 and webs 9, only a portion of the slotted filaments 2 between Ablegesiebband 1 and transfer roller 4 is clamped, namely only in the region of the webs 9. In the Fig. 3 is also recognizable that the Diameter of the filaments 2 is substantially less than the diameter of the warp threads 10 of the Ablegesiebbandes. 1
  • the profiling (macro-profiling) of the transfer roller 4 in the form of two threads (11, 12) is formed, each extending from the center of the transfer roller 4 to a front end of the transfer roller 4.
  • it is counter-rotating thread 11, 12.
  • the thread 11 is formed in the embodiment left-handed and the thread 12 is formed right-handed. Due to the thread-like design or due to the slope of the profiling the slotted filaments 2 are only temporarily clamped between Ablegesiebband 1 and webs 9.
  • the position of the contact points of the Ablegesiebbandes 1 with the transfer roller 4 changes during movement of the Ablegesiebbandes 1 or during rotation of the transfer roller 4 so continuously.
  • the collapsed filaments 2 come out of the entrapment, they can be further conveyed by the train of calender rolls 6, 7 with the remaining nonwoven web 3. In this way, a tearing off of the filaments 2 which have fallen through and thus the disadvantageous "snowflight" can be avoided very effectively.
  • the surfaces of the Profiltechniksmaxima the profiling are additionally provided with a micro-profiling 13.
  • the surfaces of the webs 9 have such a microprofiling.
  • the microprofiling corresponds to a globular surface topography.
  • the surfaces of the microprofiling maxima 14 are expediently spherical and / or ellipsoidal in shape.
  • the micro-profiling of the web surfaces can be produced for example by thermal spraying or electroplating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Sludge (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Medicines Containing Plant Substances (AREA)

Claims (10)

  1. Dispositif de fabrication d'une bande de filé-lié, comportant une bande de dépôt tramée (1) sur laquelle des fibres peuvent être déposées pour former la bande de filé-lié (3),
    la bande de dépôt tramée (1) passant sur au moins un cylindre et la surface de ce cylindre étant profilée en veillant à ce que la bande de dépôt tramée (1) soit en contact avec les profilages maximaux de la surface du cylindre.
  2. Dispositif selon la revendication 1, dans lequel le cylindre est réalisé sous forme d'un cylindre de transfert (4) pour la bande de non-tissé (3).
  3. Dispositif selon la revendication 2, dans lequel le cylindre de transfert (4) servant au transfert de la bande de non-tissé (3) est ajusté sur une calandre (5).
  4. Dispositif selon une des revendications 1 à 3, dans lequel la bande de dépôt tramée (1) encercle le cylindre avec un angle d'encerclement d'au moins 70°.
  5. Dispositif selon une des revendications 1 à 4, dans lequel au moins 70 %, de préférence au moins 80 %, de la surface du cylindre est profilé.
  6. Dispositif selon une des revendications 1 à 5, dans lequel le profilage de la surface du cylindre est réalisé sous forme de rainures (8) et traverses (9) entourant au moins une partie de la circonférence du cylindre.
  7. Dispositif selon la revendication 6, dans lequel le profilage se présente sous forme d'au moins un filetage (11, 12).
  8. Dispositif selon une des revendications 1 à 7, dans lequel la position des points de contact de la bande de dépôt tramée (1) avec le cylindre varie en continu et/ou de manière discontinue en cas de mouvement de la bande de dépôt tramée (1) ou de rotation du cylindre en raison du profilage du cylindre.
  9. Dispositif selon une des revendications 1 à 8, dans lequel les profilages maximaux de la surface profilée du cylindre présentent en outre un micro-profilage (13) sur leur surface.
  10. Dispositif selon la revendication 9, dans lequel le micro-profilage est créé par injection thermique et/ou revêtement par galvanisation.
EP07012794.9A 2007-06-29 2007-06-29 Dispositif pour la fabrication d' un voile non-tissé spunbond Active EP2017206B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK07012794.9T DK2017206T3 (da) 2007-06-29 2007-06-29 Indretning til fremstilling af en filtbane
EP07012794.9A EP2017206B1 (fr) 2007-06-29 2007-06-29 Dispositif pour la fabrication d' un voile non-tissé spunbond
ES07012794.9T ES2507099T3 (es) 2007-06-29 2007-06-29 Dispositivo para la fabricación de una tela no tejida hilada por adhesión
US12/147,562 US7849902B2 (en) 2007-06-29 2008-06-27 Apparatus for making a spunbond web
CN2008101317742A CN101333729B (zh) 2007-06-29 2008-06-27 用于制造纺粘纤维网的设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07012794.9A EP2017206B1 (fr) 2007-06-29 2007-06-29 Dispositif pour la fabrication d' un voile non-tissé spunbond

Publications (2)

Publication Number Publication Date
EP2017206A1 EP2017206A1 (fr) 2009-01-21
EP2017206B1 true EP2017206B1 (fr) 2014-06-25

Family

ID=38667046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07012794.9A Active EP2017206B1 (fr) 2007-06-29 2007-06-29 Dispositif pour la fabrication d' un voile non-tissé spunbond

Country Status (5)

Country Link
US (1) US7849902B2 (fr)
EP (1) EP2017206B1 (fr)
CN (1) CN101333729B (fr)
DK (1) DK2017206T3 (fr)
ES (1) ES2507099T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3199671B1 (fr) * 2016-01-27 2020-03-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Dispositif destine a la fabrication de matieres non tissees
US11244280B2 (en) 2019-03-18 2022-02-08 International Business Machines Corporation Reducing food waste by using a machine learning model

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592463A (en) * 1984-07-05 1986-06-03 Halil Puskar Roller with double left and double right helix pattern track
US5213202A (en) * 1991-10-07 1993-05-25 Morrison Marketing, Inc. Helically grooved conveyor pulley for use in belted conveyor systems
JP3535064B2 (ja) * 2000-03-07 2004-06-07 カネボウ株式会社 熱可塑性エラストマー不織布ロールの製造方法並びに製造装置
TW508390B (en) * 2001-05-09 2002-11-01 Ind Tech Res Inst Feeding device for preneedling nonwoven fabrics
MXPA05004374A (es) * 2002-10-24 2005-10-18 Advanced Design Concept Gmbh Fibras multicomponentes elatomericas, telas no tejidas y generos no tejidos.
DE50201372D1 (de) * 2002-12-19 2004-11-25 Reifenhaeuser Masch Vorrichtung für die Ablage und Förderung einer Vliesbahn aus Kunststofffäden

Also Published As

Publication number Publication date
CN101333729A (zh) 2008-12-31
CN101333729B (zh) 2010-12-29
ES2507099T3 (es) 2014-10-14
DK2017206T3 (da) 2014-09-22
US20090008036A1 (en) 2009-01-08
US7849902B2 (en) 2010-12-14
EP2017206A1 (fr) 2009-01-21

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