EP3628765A1 - Procédé et dispositif de fabrication d'une bande de non-tissé à partir de fibres - Google Patents

Procédé et dispositif de fabrication d'une bande de non-tissé à partir de fibres Download PDF

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Publication number
EP3628765A1
EP3628765A1 EP18197791.9A EP18197791A EP3628765A1 EP 3628765 A1 EP3628765 A1 EP 3628765A1 EP 18197791 A EP18197791 A EP 18197791A EP 3628765 A1 EP3628765 A1 EP 3628765A1
Authority
EP
European Patent Office
Prior art keywords
nonwoven web
consolidation
calender roll
during
change
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
EP18197791.9A
Other languages
German (de)
English (en)
Other versions
EP3628765B1 (fr
Inventor
Detlev Frey
Hans-Georg Geus
Hartmut Kopp
Michael Maas
Martin Neuenhofer
Michael Nitschke
Christine NOACK
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 PL18197791T priority Critical patent/PL3628765T3/pl
Priority to DK18197791.9T priority patent/DK3628765T3/da
Priority to ES18197791T priority patent/ES2858318T3/es
Priority to EP18197791.9A priority patent/EP3628765B1/fr
Priority to JP2019172734A priority patent/JP6951395B2/ja
Priority to KR1020190117564A priority patent/KR102367871B1/ko
Priority to MX2019011478A priority patent/MX383791B/es
Priority to BR102019020213-0A priority patent/BR102019020213B1/pt
Priority to CN201910922130.3A priority patent/CN110965205B/zh
Priority to US16/587,105 priority patent/US11655571B2/en
Publication of EP3628765A1 publication Critical patent/EP3628765A1/fr
Application granted granted Critical
Publication of EP3628765B1 publication Critical patent/EP3628765B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/488—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • 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
    • D04H3/10—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 yarns or filaments made mechanically
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H3/00—Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H3/00—Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
    • D01H3/02—Details
    • D01H3/16—Spindle-driving arrangements
    • 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
    • D04H1/559—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 the fibres being within layered webs
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • 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
    • D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/724—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
    • 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
    • D04H17/00—Felting apparatus
    • D04H17/10—Felting apparatus for felting between rollers, e.g. heated rollers
    • D04H17/12—Multi-roller apparatus
    • 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
    • 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
    • D04H3/12—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 filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • 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
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • 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
    • D04H17/00—Felting apparatus
    • D04H17/10—Felting apparatus for felting between rollers, e.g. heated rollers

Definitions

  • the invention relates to a method for producing a nonwoven web from fibers, in particular from synthetic fibers, the fibers being spun out and cooled and being deposited as a fiber deposit or as a nonwoven web on a deposit, in particular on a deposit belt or deposit screen belt, at least one pre-consolidation device for pre-consolidation the nonwoven web is provided and at least one first calender roll downstream of the pre-consolidation device is provided for consolidating the nonwoven web.
  • the invention further relates to a device for producing a nonwoven web from fibers.
  • the invention is based on the technical problem of specifying a method of the type mentioned at the outset in which a simple, rapid and functionally reliable change of the calender roll can be carried out during operation without the device being idle.
  • the invention is further based on the technical problem of specifying a corresponding device.
  • the invention teaches a method for producing a nonwoven web from fibers, in particular from synthetic fibers, the fibers being spun out and cooled and being deposited as a fiber deposit or as a nonwoven web on a deposit, in particular on a deposit belt or deposit screen belt, wherein at least one pre-consolidation device is provided for pre-consolidation of the nonwoven web and at least one first calender roll downstream of the pre-consolidation device is provided for consolidation of the nonwoven web, wherein the first calender roll is exchanged for a second calender roll during process operation (calender roll change), the the first calender roll is removed from the nonwoven web, the pre-consolidation of the nonwoven web being increased during the change of the calender roll and the pre-consolidation of the nonwoven web being reduced again after the introduction of the second calender roll.
  • a pair of calender rolls consisting of an upper calender roll and a lower calender roll interacting with it to solidify the nonwoven web. Both calender rolls form a nip for passing and solidifying the nonwoven web.
  • At least one calender roll can be engraved and at least one calender roll is preferably heated.
  • the first upper calender roll of the pair of calender rolls is exchanged for a second upper calender roll.
  • the first upper calender roll is expediently pivoted out and thus this upper calender roll is removed from the lower calender roll.
  • the second upper calender roll is then preferably pivoted in and brought into interaction with the lower calender roll.
  • the calender rolls are advantageously pivoted in or out by means of swivel devices or swivel levers or similar devices.
  • the at least one pair of calender rolls serves as at least one final consolidation stage for the nonwoven web.
  • the calender roll change prefferably to be carried out online without interruption during the ongoing process operation and in particular with regard to the conveying or further conveying of the nonwoven web.
  • the nonwoven web can continue to be produced and conveyed during the change of the calender roll without the need to shut down and restart the associated device.
  • the invention is based on the knowledge that when a calender roll to be replaced is removed or swung out, the transport forces acting on the nonwoven web through the calender are immediately eliminated. This means that the other transport components of the device have to make a significantly greater pull on the nonwoven web.
  • the mechanical properties of the nonwoven web change, in particular the elastic modulus drops drastically. As a result, the stretch is much higher even with small forces.
  • the invention is now based on the knowledge that, on the basis of the measures according to the invention, a continuation of the nonwoven web production and nonwoven web conveyance is possible without the nonwoven properties changing disadvantageously and without the nonwoven web being damaged or torn off. Surprisingly, this advantageous result can be achieved with very simple and inexpensive measures by strengthening the pre-consolidation of the nonwoven web.
  • a particularly preferred embodiment of the invention is characterized in that the fibers or the plastic fibers are spun out as continuous fibers or as continuous filaments and in particular are spun out by means of a spinnerette.
  • Such endless filaments differ because of their quasi-endless length from staple fibers, which have significantly shorter lengths of, for example, 10 to 60 mm.
  • the filaments are spun in the form of monocomponent filaments.
  • a particular embodiment of the method according to the invention is characterized in that bicomponent filaments or multicomponent filaments as fibers or as continuous filaments be spun. The fibers or filaments are expediently drawn before they are deposited on the deposit belt or deposit screen belt.
  • the fibers are spun as continuous filaments and produced as a spunbond nonwoven web or as a meltblown nonwoven web.
  • multi-beam systems or multi-beam devices can be used without any problems.
  • the pre-consolidation of the nonwoven web is increased for changing the calender rolls.
  • the pre-consolidation is expediently reinforced before or shortly before the first calender roll is removed from the nonwoven web. It is within the scope of the invention that after the introduction of the second calender roll the pre-consolidation of the nonwoven web is reduced again and in particular is reduced again to the pre-consolidation before the calender roll change or before the pre-consolidation is reinforced.
  • the invention is based on the knowledge that a smooth transition in nonwoven production is possible with this procedure.
  • the pre-consolidation device has at least one pressure roller or heated pressure roller acting on the nonwoven web.
  • Pre-consolidation with the pressure roller is preferably increased before or during the calender roller change, and for this purpose the temperature and / or the compacting pressure or the line pressure of the pressure roller is preferably increased.
  • the temperature is expediently set by means of a control device.
  • the compacting pressure or line pressure can be selected mechanically, pneumatically or electro-mechanically. It is within the scope of the invention that after the calender roll change, the pre-consolidation with the pressure roller is again reduced, and expediently to the value of the pre-consolidation or to approximately the Pre-consolidation value before increasing the pre-consolidation or before changing the calender roll.
  • the pre-consolidation device has at least one additional pre-consolidation component.
  • This at least one additional pre-consolidation component is expediently activated (shortly) before or during the calender roll change for the additional pre-consolidation of the nonwoven web. It is recommended that the pre-consolidation with the at least one additional pre-consolidation component be deactivated again after the calender roll change, and preferably reduced to the pre-consolidation before the calender roll change.
  • the at least one additional pre-consolidation component is at least one press roll which is brought into contact with the nonwoven web (shortly) before or during the change of the calender roll for the additional compaction of the nonwoven web. It is within the scope of the invention for a pair of press rolls to be brought into engagement with the nonwoven web as an additional pre-consolidation component (briefly) before or during the change of the calender roll for additional compacting of the nonwoven web.
  • An alternative or additional embodiment variant is characterized in that the at least one additional pre-consolidation component is an adhesive application device, in particular a spray adhesive application device.
  • this additional pre-consolidation component glue or spray adhesive is expediently applied (shortly) before or during the change of the calender roll for the additional pre-consolidation of the nonwoven web.
  • a hot air consolidation device is available as an additional pre-consolidation component, with which (shortly) before or during the Calender roll change, the nonwoven web is subjected to hot air for the additional pre-consolidation. It is within the scope of the invention that such a pre-consolidation component or the pre-consolidation components is / are deactivated again after the calender roll change and that the pre-consolidation is then expediently reduced to or approximately to the pre-consolidation before the calender roll change or before the additional pre-consolidation.
  • the web speed of the nonwoven web or the line speed is increased for the time of the calender roll change.
  • a particularly preferred embodiment of the invention is characterized in that the web speed of the nonwoven web between the storage and a receiving device for the nonwoven web - in particular a winding device for the nonwoven web - is increased during the calender roll change.
  • only the web speed of the nonwoven web is increased in the course of the calender roll change in addition to the reinforcement of the pre-consolidation, and no further system parameters or device parameters are changed or essentially changed. In principle, other system parameters could also be changed while changing the calender roll.
  • an operating mode “roll change” can expediently be selected in a control and / or regulating device.
  • the system parameters or device parameters to be changed are defined in this operating mode and can preferably be transferred to the device under program control.
  • the invention is based on the knowledge that that after the removal of the first calender roll and before the introduction of the second calender roll, the transport forces applied by the calender to the nonwoven web are suddenly eliminated. Accordingly, the system components working on the nonwoven web have to pull higher. If this is not done, the fleece web will often sag.
  • the web speed of the nonwoven web is increased, and preferably no or as few other system parameters as possible are changed. The web speed is expediently reduced again after the calender roll change, in particular to the value of the web speed or approximately to the value of the web speed before the calender roll change
  • the rotational speed of at least part of the rotating system components - in particular rolls or rolls - provided between the deposit and the receiving device or winding device and in contact with the nonwoven web is increased.
  • the rotational speed of all the rotating system components mentioned is increased in order to increase the web speed.
  • all drives of the device according to the invention which are responsible for the speed of the nonwoven web are adapted so that the speed of the nonwoven web is increased accordingly. To support these measures, as the web speed increases, a nonwoven web section is continuously buffered in a dancer device with at least one dancer roller.
  • the nonwoven web tension is expediently measured or monitored during the change of the calender roll and, depending on this, the system components or drives determining the nonwoven web speed are controlled and / or regulated.
  • start-up fleece As an alternative or in addition to increasing the web speed when changing the calender roll, one can also work with a start-up fleece (so-called "precursor") in the course of changing the calender roll.
  • a start-up fleece for this purpose, an already consolidated start-up fleece web is introduced into the device and the fiber deposit is applied or wound onto this start-up fleece.
  • the calender roll change expediently begins when the start-up fleece has reached the receiving device or the winding device for the fleece web. With this procedure, you can basically do without increasing the web speed during the calender roll change.
  • part of the transport force is taken over by the calender during the manufacture of the nonwoven web. If no calendering takes place in the course of the calender roll change, this portion of the transport forces applied by the calender is eliminated.
  • the invention is based on the knowledge that, in the course of changing the calender roll, this missing portion of the forces or transport forces must be provided or compensated for by additional measures.
  • a deposit screen belt is used as a deposit for the fibers and that the nonwoven web is expediently detached from the deposit screen belt before being transferred to the at least one calender roll.
  • the Calender roll change supports the detachment of the nonwoven web by means of an additional detaching device.
  • a proven embodiment of the invention is characterized in that at least one additional take-off roller is switched on and brought into contact with the nonwoven web in order to support the detachment of the nonwoven web from the deposit belt or from the deposit screen belt during the calender roll change.
  • the additional take-off roller is brought into contact with a cooling roller, preferably previously active, for cooling the non-woven web to form a pull-off nip for the non-woven web.
  • a cooling roller preferably previously active
  • the deposit screen belt and expediently the calender are followed by cooling rolls, which are preferably designed as S-roll take-offs.
  • an additional take-off roller is provided above the first upper roller or cooling roller of the S-roller take-off, which is placed on the upper roller or cooling roller in preparation for the change of the calender roller and during the change of the calender roller is and expediently forms a trigger nip, which supports the detachment of the nonwoven web from the storage belt or storage sieve belt.
  • the calender roll change is carried out at a nonwoven web speed of 80 to 400 m / min, preferably 100 to 350 m / min and very preferably 100 to 300 m / min.
  • This time window has proven particularly useful in the context of the procedure according to the invention.
  • the preparation for the calender roll change or device parameters changed during the calender roll change are reset or adapted to normal operation again.
  • the calender rolls used for the subsequent calendering are expediently accelerated to the nonwoven web speed or to the wire belt speed — preferably additionally with an adjustable advance — and then moved together and pressurized.
  • the nonwoven web production is then preferably continued with the original process parameters or device parameters.
  • the method according to the invention is carried out according to a preferred embodiment of the invention as a spunbond method for producing a spunbond nonwoven.
  • continuous filaments are first spun using at least one spinnerette and then cooled in a cooling device.
  • the filaments then pass through a drawing device for drawing the filaments.
  • the drawn filaments are deposited on the deposit - in particular on the deposit belt or deposit screen belt - as a nonwoven web or as a spunbond.
  • a particularly preferred embodiment of the invention is characterized in this context in that the unit from the cooling device and the stretching device as a closed unit is formed, with the exception of the supply of the cooling air to the cooling device, there is no further air supply to the closed unit.
  • At least one diffuser is expediently interposed between the stretching device and the deposit, in particular the deposit belt or deposit screen belt.
  • the fibers or continuous filaments emerging from the drawing device are passed through this diffuser and then placed on the support, in particular on the storage belt or storage wire belt. This is followed by pre-consolidation and consolidation by calendering.
  • a further recommended embodiment of the invention is characterized in that the method according to the invention is carried out as a meltblown method and a meltblown nonwoven is produced.
  • nonwoven webs can be produced from bicomponent filaments or multicomponent filaments within the scope of the invention.
  • the measures according to the invention are also particularly suitable for such nonwoven webs.
  • fibers or filaments are produced from thermoplastic material in the course of the method according to the invention.
  • the plastic of the plastic fibers is preferably a polyolefin, in particular polyethylene and / or polypropylene. In principle, however, other thermoplastic materials can also be used to produce the fibers or filaments of the nonwoven web according to the invention.
  • the invention is based on the knowledge that, within the scope of the method according to the invention and with the device according to the invention, a simple and quick change of calender roll is possible without the production of the nonwoven web having to be interrupted. With the measures according to the invention a continuous further production of the nonwoven web can be guaranteed. The measures according to the invention required for this are characterized by simplicity and little effort. The additional pre-consolidation according to the invention can be implemented quickly and without problems. The measures to be taken for the calendar change are either relatively simple control and / or regulating measures or the connection of simple additional system components. Within the scope of the method according to the invention, a smooth transition from normal nonwoven production to changing the calender roll is possible and an equally smooth transition from changing the calender roll to normal operation again. With the aid of the measures according to the invention, these transitions are possible without disruptions or constraints. As a result, the method according to the invention distinguishes itself and the device according to the invention is characterized by simplicity, little effort and low cost.
  • the invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment.
  • the single figure shows a schematic representation of a vertical section through a device according to the invention for carrying out the method according to the invention.
  • a device for producing a spunbond nonwoven web 1 from continuous filaments 2 wherein the continuous filaments 2 are preferred and in the exemplary embodiment are filaments 2 made of thermoplastic material.
  • the filaments 2 are spun by means of a spinning device or spinnerette 3 and then cooled in a cooling device 4.
  • a stretching device 5 for stretching the filaments 2 adjoins the cooling device 4 in the flow direction of the filaments 2.
  • This stretching device 5 preferably and in the exemplary embodiment has one in the flow direction Filaments 2 converging intermediate channel 6 and an adjoining drawing channel 7.
  • the unit comprising the cooling device 4 and the drawing device 5 is designed as a closed system.
  • a diffuser 8 connects to the stretching device 5 in the flow direction of the filaments 2.
  • the filaments 2 are deposited on the deposit screen belt 9 to the nonwoven web 1 following the diffuser 8.
  • the deposit screen belt 9 is preferably and in the exemplary embodiment is an endlessly rotating deposit screen belt 9.
  • the deposited nonwoven web 1 is recommended and in the exemplary embodiment pre-consolidated in a pre-consolidation device 10 with two pressure rollers 11. Following this, the pre-consolidated nonwoven web 1 is expediently and in the exemplary embodiment, consolidated in a calender device 12 with a first upper calender roll 13 and a lower calender roll 14. It has been indicated in the figure that the first upper calender roll 13 is exchanged for a second upper calender roll 15 during the process operation (change of calender roll). The first upper calender roll 13 is removed from the nonwoven web 1 and only then brought into contact with the lower calender roll 14 in the second upper calender roll 15. This results in a period in which the nonwoven web 1 is not calendered. Accordingly, the transport force of the calender device 12 on the nonwoven web 1 is eliminated. As a result, the further conveying components for the nonwoven web 1 must exert a higher force or pulling force. This can damage or tear the nonwoven web 1.
  • the pre-consolidation of the nonwoven web 1 is increased during the change of the calender roll and this increased pre-consolidation of the nonwoven web 1 is expediently reduced again after the second upper calender roll 15 has been introduced.
  • the pre-consolidation device 10 has two pressure rollers 11 acting on the nonwoven web 1. It is within the scope of the invention that the pre-consolidation with the pressure rollers 11 is increased during the calender roller change. For this purpose, the temperature and / or the compacting pressure of the pressure rollers 11 is preferably increased.
  • the pre-consolidation device 10 has at least one additional pre-consolidation component, which is activated for the additional pre-consolidation of the nonwoven web 1 during the calender roll change.
  • the additional pre-consolidation device is a hot air consolidation device 16 with which the nonwoven web 1 is subjected to hot air for additional pre-consolidation during the change of the calender rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP18197791.9A 2018-09-28 2018-09-28 Procédé et dispositif de fabrication d'une bande de non-tissé à partir de fibres Active EP3628765B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PL18197791T PL3628765T3 (pl) 2018-09-28 2018-09-28 Sposób i urządzenie do wytwarzania wstęgi włókniny z włókien
DK18197791.9T DK3628765T3 (da) 2018-09-28 2018-09-28 Fremgangsmåde og indretning til fremstilling af en vliesbane af fibre
ES18197791T ES2858318T3 (es) 2018-09-28 2018-09-28 Procedimiento y dispositivo para la fabricación de una banda de material no tejido a partir de fibras
EP18197791.9A EP3628765B1 (fr) 2018-09-28 2018-09-28 Procédé et dispositif de fabrication d'une bande de non-tissé à partir de fibres
KR1020190117564A KR102367871B1 (ko) 2018-09-28 2019-09-24 섬유로부터 부직포 웹을 제조하기 위한 방법 및 장치
JP2019172734A JP6951395B2 (ja) 2018-09-28 2019-09-24 繊維から不織布ウェブを製造するための方法及び装置
MX2019011478A MX383791B (es) 2018-09-28 2019-09-26 Procedimiento y aparato para fabricar una banda no tejida de fibras
BR102019020213-0A BR102019020213B1 (pt) 2018-09-28 2019-09-26 Método e aparelho para fabricar uma manta não tecida a partir de fibras
CN201910922130.3A CN110965205B (zh) 2018-09-28 2019-09-27 用于制造由纤维制成的非织造织物幅的方法和设备
US16/587,105 US11655571B2 (en) 2018-09-28 2019-09-30 Nonwoven web and method of making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18197791.9A EP3628765B1 (fr) 2018-09-28 2018-09-28 Procédé et dispositif de fabrication d'une bande de non-tissé à partir de fibres

Publications (2)

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EP3628765A1 true EP3628765A1 (fr) 2020-04-01
EP3628765B1 EP3628765B1 (fr) 2021-01-20

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US (1) US11655571B2 (fr)
EP (1) EP3628765B1 (fr)
JP (1) JP6951395B2 (fr)
KR (1) KR102367871B1 (fr)
CN (1) CN110965205B (fr)
DK (1) DK3628765T3 (fr)
ES (1) ES2858318T3 (fr)
MX (1) MX383791B (fr)
PL (1) PL3628765T3 (fr)

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CN112011895A (zh) * 2020-09-04 2020-12-01 嘉兴学院 一种用于熔喷非织造布在线生产的冷却接收装置
JP7772553B2 (ja) * 2020-11-19 2025-11-18 ライフェンホイザー・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシャフト・マシイネンファブリーク 連続フィラメントから成る不織布を製造するための装置
US11958308B1 (en) 2023-05-31 2024-04-16 G13 Innovation In Production Ltd Thermal paper, and methods and systems for forming the same

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US11655571B2 (en) 2023-05-23
MX383791B (es) 2025-03-14
CN110965205B (zh) 2022-06-07
JP2020076189A (ja) 2020-05-21
CN110965205A (zh) 2020-04-07
KR102367871B1 (ko) 2022-02-24
US20200157715A1 (en) 2020-05-21
JP6951395B2 (ja) 2021-10-20
ES2858318T3 (es) 2021-09-30
DK3628765T3 (da) 2021-04-19
KR20200036762A (ko) 2020-04-07
PL3628765T3 (pl) 2021-09-06
BR102019020213A2 (pt) 2020-04-07
EP3628765B1 (fr) 2021-01-20

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