   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de

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   NANOVAL – Publications
   Impressum
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de

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   NANOVAL – Publications
   Impressum
   NANOVAL
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de
   
   
   
   
   Impressum
   
   

              Hinweis gem. § 6 TDG sowie Angaben i.S.d § 6 MDStV:

                             NANOVAL GmbH & Co. KG
                             Kienhorststraße 61-65
                                 D-13403 Berlin
                        Tel. +49 (0) 30 - 32 29 022 - 0
                        Fax +49 (0) 30 - 32 29 022 - 29
                                Info@nanoval.de

                      Handelsregister Berlin HRA-Nr. 21565
                 Komplementär: NANOVAL Verwaltungs-GmbH, Berlin

                       Geschäftsführer/Managing Director:
                             Dr.-Ing. Lüder Gerking
                          http://www.lueder-gerking.de

                           USt. Id. Nr. DE 136673268

                                  realised by

       Online Now! Gesellschaft für elektronisches Marketing mbH, Berlin
   NANOVAL
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de

                             Willkommen bei NANOVAL
     Auf den folgenden Seiten lernen Sie unsere besondere Art der Verfahren
                                und Anlagen zur
    Herstellung von Metallpulvern und Fasern für Vliesstoffe und Garne näher
                                    kennen.
        Pulver aus Metall und anderen      Fasern und Vliesstoffe direkt
        Schmelzen                          aus der Schmelze
        Weitere Informationen              Weitere Informationen
        Weitere Informationen              Weitere Informationen

   „Nanoval-Effekt" im Bild Nanoval-Effekt im Bild - Vergrößerte Ansicht

   NANOVAL – Veröffentlichungen
   
   Impressum
   Datenschutzerklärung
   NANOVAL
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de
   
   
   
   

   A gas under pressure p[1] flows from around a melt nozzle into a Laval
   nozzle, which is the classical case of a converging - diverging flow duct.
   The pressure behind the Laval nozzle is p[2].

   In the narrowst cross section of the Laval nozzle sonic speed (Mach number
   Ma = 1) is reached, after it transsonic speed (Ma>1) can be reached
   depending on the pressure ratio p[1]/p[2]. The gas flow is strictly
   laminar due to the extremely high acceleration and the short entry
   lengths. The melt monofilment is being attenuated thinner and thinner
   until it bursts open spontaneously as a result of the Nanoval effect.

   This non-turbulent mechanism of disintegration gives fine and ultra fine
   powder of spherical shape in narrow particle size distribution. Less
   satellites are observed compared with common turbulent processes.

   The process is patented.

   The process
   Production of fine and ultra fine metal powder
   
                  The machine For enlarged view, please click!
   For enlarged view, please click!
   The Process
   
   Powder
   NANOVAL
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de
   
   
   
   

   The monofilaments are picked up directly underneath the spinneret by a gas
   stream (normally air), which draws them by applying shear stresses to the
   surface. In contrast to all meltblown processes both the melt and air
   flows are steadily accelerated. As soon as the internal pressure pF in the
   monofilament exceeds the external gas pressure pG the NANOVAL effect
   causes the filament to burst spontaneously. The permanent increase of the
   internal pressure pF is due to shear forces between the faster gas flow
   and the filament’s sheath, its skin, inducing an increasing pressure
   inside the still liquid filament. This pressure acts against the
   monofilament’s sheath and it can split into a multitude of up to several
   100 finer filaments per spinhole.

   Nonwovens can be produced from spliced continuous filaments. The
   spin-neret nozzles are arranged in rows or as single spin-cones in several
   parallel rows. The filaments can be deposited on a collector belt running
   below, at the same time removing the gas/air from underneath the belt by a
   suction fan.

   The process is simple, robust in operation and energy saving. Filaments
   can reach diameters below 1 µm.

   The process is patented.

   Filaments + Nonwovens
   
   For enlarged view, please click!
   The Process
   For enlarged view, please click!
   
   
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de

    1   NANOVAL-Verfahren zur Herstellung von Metallpulvern        L.
        Hannover Messe ’92                                         Gerking
    2   Powder from Metal and Ceramic Melts by Laminar Gas         L.
        Streams                                                    Gerking
        pmi Powder Metallurgy International 25 (1993), 59-65
    3   Das NANOVAL-Verfahren zur Herstellung feiner und           G. Schulz
        ultrafeiner
        Metallpulver
        Proc. European Metals Conf., Metallurgy I, Juni ’94
    4   Precious Metal Powders by the NANOVAL-Process –            G. Schulz
        Production
        and Appplications
        Proc. Int’l Conf. Precious Metals, Kosice,
        Slovakia, Oct. 25-27, 1995, 197-202
    5   Feine, gasverdüste Metallpulver nach den                   G. Schulz
        NANOVAL-Verfahren
        Vortrag auf dem Werkstoff-Forum (Hannover-Messe) 1996
    6   Laminar sonic and Supersonic Gas Flow Atomization          G. Schulz
        PM²TEC, Washington 16.-21.06.1996
    7   Economic Production of Fine, Prealloyed MIM Powders by     G. Schulz
        the
        NANOVAL Gas Atomizing Process
        PM²TEC, Washington 16.-21.06.1996
    8   NANOVAL process offers fine powder benefits                G. Schulz
        Metal Powder Report November 1996
    9   NANOVAL Atomizing – A special process for special          M. Stobik
        products
        TMS Nashville, 13.-17.03.2000
    10  NANOVAL Atomizing – Superior Flow Design for Finer Powder  M. Stobik
        Spray Deposition and Melt Atomization Int’l Conference,
        Bremen 26.-28.06.2000
    11  NANOVAL Metal Powder – Market Requirements and Powder      M. Stobik
        Characteristics
        Advanced Engineering Materials 2 (2000), 547-548
    12  New Achievements with the NANOVAL-Process for Gas          L.
        Atomizing                                                  Gerking
        PM2000, Kyoto 12.-16.11.2000
    13  NANOVAL Atomizing – Capabilities, Applications and         M. Stobik
        related
        processes
        Uni Bremen, SFB 372, Fakultätskolloquium November 2001
    14  NANOVAL process for spunbonded nonwovens                   L.
        Chemical Fibers International 52 (2002), 424-426           Gerking
    15  Der NANOVAL-Prozess für Spinnvlies (Spunbonded Nonwovens   L.
        by NANOVAL Process)                                        Gerking
        42. Internationale Chemiefasertagung,
        Dornbirn, 17.-19. Sept. 2003
    16  Results from NANOVAL process for spunbonds                 L.
        CINTE Techtextil Shanghai, Aug. 31 - Sept. 01 (2004)       Gerking
        180-184 chines., 185-190 engl.
    17  NANOVAL process – unique hydrodynamic effect               L.
        Chemical Fibers International 54 (2004), 261-262           Gerking
    18  NANOVAL Process for Spunbonds Detailed                     L.
        International Fiber Journal (April 2005), 52-56            Gerking
    19  News from NANOVAL technology                               L.
        Chemical Fibers International                              Gerking
        Technical Textiles (2006), 15
    20  NANOVAL enters Nanofibers Market                           L.
        International Fiber Journal, Dezember 2005, 44             Gerking
    21  Nanoval process – unique hydrodynamic effect (Part 2)      L.
        Chemical Fibers International 56 (2006), 57-59             Gerking
    22  Lyocell-Spinnvliese nach dem Nanoval-Verfahren
        Technische Textilien 1 (2006), 41
    23  Nanoval splitspinning to nanofibers                        M. Stobik
        TANDEC Conference, Knoxville/Tennessee USA
        April 19, 2006
    24  Cellulosic non-wovens according to the Nanoval-process     B. Riedel
        7th International Symposium, Alternative Cellulose 06. -   L.
        07.09.2006                                                 Gerking
    25  Nanovlisz® - a new filitration media                       L.
        EDANA FILTREX Conference, Munich (Oct. 24-25, 2006)        Gerking
    26  Nanoval Splitspinning - A Way to Submicron & Nano Fibers   M. Stobik
        Insight Conference, Memphis Tennessee (Oct./Nov. 2006)
    27  Production of sub-micron fibers through the Nanoval        M. Stobik
        splitspinning process
        Nonwowens World (Spring 2007), 88-94
    28                                                             F.
        Cellulosic nonwoven according to the Nanoval process       Meister
        EDANA Nonwoven Research Academy, Leeds,                    B. Riedel
        (March 29/30, 2007)                                        L.
                                                                   Gerking
    29  Nanoval Splitspinning - from coarse to nano                L.
        Chemical Fibers International 57 (2007) 210-211            Gerking
                                                                   M. Stobik
    30  From Meltblown to spunbond - Nanoval nonwovens             L.
        Asian Technical Textiles 2 (2008), 41-43                   Gerking
        chines: China Textile Leader
        June 2008 No. 6, 109-111
    31  Spunlaid cellulose nonwovens                               L.
        Chemical Fibers International 61 (2011), 52-53             Gerking
        chines.: Melliand China 2012.2, 69-7
    32  Der Nanoval - Effekt                                       L.
        avr-Allgemeiner Vliesstoff - Report 4/2011, 57-583         Gerking
    33  Nanoval - Does it split?                                   M. Stobik
        Insight Conference, Memphis Tennessee (Oct. 23-27, 2011)
    34  Die Zukunft in cellulosischen Vliesstoffen                 L.
        avr-Allgemeiner Vliesstoff-Report 5/2012, 32-33            Gerking

        The future with cellulose nonwovens
        Asian Technical Textiles, July-Sept. (2013), 44-45
    35  Altpapier & Co.                                            F. Weger
        avr-Allgemeiner Vliesstoff-Report 5/2014, 33               Chr.
                                                                   Gerking
        18.11.2014

   Veröffentlichungen
   
   
   
   NANOVAL GmbH & Co. KG
   Kienhorststraße 61-65
   D-13403 Berlin
   Tel. +49 (0) 30 - 32 29 022 - 0
   Fax +49 (0) 30 - 32 29 022 - 29
   Info@nanoval.de

    1   NANOVAL-Verfahren zur Herstellung von Metallpulvern        L.
        Hannover Messe ’92                                         Gerking
    2   Powder from Metal and Ceramic Melts by Laminar Gas         L.
        Streams                                                    Gerking
        pmi Powder Metallurgy International 25 (1993), 59-65
    3   Das NANOVAL-Verfahren zur Herstellung feiner und           G. Schulz
        ultrafeiner
        Metallpulver
        Proc. European Metals Conf., Metallurgy I, Juni ’94
    4   Precious Metal Powders by the NANOVAL-Process –            G. Schulz
        Production
        and Appplications
        Proc. Int’l Conf. Precious Metals, Kosice 25.-27.10.1997,
        Slovakia, Oct. 25-27, 1995, 197-202
    5   Feine, gasverdüste Metallpulver nach den                   G. Schulz
        NANOVAL-Verfahren
        Vortrag auf dem Werkstoff-Forum (Hannover-Messe) 1996
    6   Laminar sonic and Supersonic Gas Flow Atomization          G. Schulz
        PM²TEC, Washington 16.-21.06.1996
    7   Economic Production of Fine, Prealloyed MIM Powders by     G. Schulz
        the
        NANOVAL Gas Atomizing Process
        PM²TEC, Washington 16.-21.06.1996
    8   NANOVAL process offers fine powder benefits                G. Schulz
        Metal Powder Report November 1996
    9   NANOVAL Atomizing – A special process for special          M. Stobik
        products
        TMS Nashville, 13.-17.03.2000
    10  NANOVAL Atomizing – Superior Flow Design for Finer Powder  M. Stobik
        Spray Deposition and Melt Atomization Int’l Conference,
        Bremen 26.-28.06.2000
    11  NANOVAL Metal Powder – Market Requirements and Powder      M. Stobik
        Characteristics
        Advanced Engineering Materials 2 (2000), 547-548
    12  New Achievements with the NANOVAL-Process for Gas          L.
        Atomizing                                                  Gerking
        PM2000, Kyoto 12.-16.11.2000
    13  NANOVAL Atomizing – Capabilities, Applications and         M. Stobik
        related
        processes
        Uni Bremen, SFB 372, Fakultätskolloquium November 2001
    14  NANOVAL process for spunbonded nonwovens                   L.
        Chemical Fibers International 52 (2002), 424-426           Gerking
    15  Der NANOVAL-Prozess für Spinnvlies (Spunbonded Nonwovens   L.
        by NANOVAL Process)                                        Gerking
        42. Internationale Chemiefasertagung,
        Dornbirn, 17.-19. Sept. 2003
    16  Results from NANOVAL process for spunbonds                 L.
        CINTE Techtextil Shanghai, Aug. 31 - Sept. 01 (2004)       Gerking
        180-184 chines., 185-190 engl.
    17  NANOVAL process – unique hydrodynamic effect               L.
        Chemical Fibers International 54 (2004), 261-262           Gerking
    18  NANOVAL Process for Spunbonds Detailed                     L.
        International Fiber Journal (April 2005), 52-56            Gerking
    19  News from NANOVAL technology
        Chemical Fibers International
        Technical Textiles (2006), 15
    20  NANOVAL enters Nanofibers Market
        International Fiber Journal, Dezember 2005, 44
    21  Nanoval process – unique hydrodynamic effect (Part 2)      L.
        Chemical Fibers International 56 (2006), 57-59             Gerking
    22  Lyocell-Spinnvliese nach dem Nanoval-Verfahren
        Technische Textilien 1 (2006), 41
    23  Nanoval splitspinning to nanofibers                        M. Stobik
        TANDEC Conference, Knoxville/Tennessee USA
        April 19, 2006
    24  Cellulosic non-wovens according to the Nanoval-process     B. Riedel
        7th International Symposium, Alternative Cellulose 06. -   L.
        07.09.2006                                                 Gerking
    25  Nanovlisz® - a new filitration media                       L.
        EDANA FILTREX Conference, Munich (Oct. 24-25, 2006)        Gerking
    26  Nanoval Splitspinning - A Way to Submicron & Nano Fibers   M. Stobik
        Insight Conference, Memphis Tennessee (Oct./Nov. 2006)
    27  Production of sub-micron fibers through the Nanoval        M. Stobik
        splitspinning process
        Nonwowens World (Spring 2007), 88-94
    28                                                             F.
        Cellulosic nonwoven according to the Nanoval process       Meister
        EDANA Nonwoven Research Academy, Leeds,                    B. Riedel
        (March 29/30, 2007)                                        L.
                                                                   Gerking
    29  Nanoval Splitspinning - from coarse to nano                L.
        Chemical Fibers International 57 (2007) 210-211            Gerking
                                                                   M. Stobik
    30  From Meltblown to spunbond - Nanoval nonwovens             L.
        Asian Technical Textiles 2 (2008), 41-43                   Gerking
        chines: China Textile Leader
        June 2008 No. 6, 109-111
    31  Spunlaid cellulose nonwovens                               L.
        Chemical Fibers International 61 (2011), 52-53             Gerking
        chines.: Melliand China 2012.2, 69-71
    32  Der Nanoval - Effekt                                       L.
        avr-Allgemeiner Vliesstoff - Report 4/2011, 57-583         Gerking
    33  Nanoval - Does it split?                                   M. Stobik
        Insight Conference, Memphis Tennessee (Oct. 23-27, 2011)
    34  Die Zukunft in cellulosischen Vliesstoffen                 L.
        avr-Allgemeiner Vliesstoff-Report 5/2012, 32-33            Gerking

        The future with cellulose nonwovens
        Asian Technical Textiles, July-Sept. (2013), 44-45
    35  Altpapier & Co.                                            F. Weger
        avr-Allgemeiner Vliesstoff-Report 5/2014, 33               Chr.
                                                                   Gerking
        18.11.2014

   Publications
   
   
