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Center of Excellence in Nonwovens

Technical Equipment

Our technical equipment, which is installed in three different technical centers, range from small-scale with working width of 60 cm, 100 cm up to semi-industrial 240 cm working width and offer tailor-made developments from orientation testing to small series. The complexity of these technical centers and the perfect areal concentration also allow for diverse and sometimes exceptional technology combinations.

 

Any questions?

Your contact

Dipl.-Ing.
Bernd Gulich
Manager Center of Excellence in Nonwovens

Phone: +49 371 5274-204

 

 

  • Fine fibre nonwovens using the meltblown process
ConfigurationPolymer storage, extruder, spinning bar, transport belt, calander, winder
Processable feedstockPP, PBT, PE, PC, TPU, biopolymers
Material throughput5 - 90 kg/h
Working width600 mm
Working speed2 - 120 m/min
Basis weight3 - 300 gsm

 

  • Filament nonwovens according to spunmelt processing with different type of bonding
ConfigurationOne beam line, bi-component, calander, hydro-entanglement needle-punching, chemical finishing, drier, winder
Processable feedstockPET, PP, PE, PA6, PC, TPU, biopolymers
Bicomponent typesside by side, core-sheath, segmented pie
Number of filaments6827/m, 4982/m, 2634/m
Material throughput150 - 500 kg/h
Working width1000 mm
Working speed10 - 400 m/min
Basis weightPP/PE 8 - 500 gsm
PET/PA 18 - 700 gsm

 

Setup of the spunbond line Reicofil® 4.5
Setup of the spunbond line Reicofil® 4.5
  •  Needle punched and stitch-bonded nonwovens made of staple fibres
ConfigurationsCarding willow, feeding chute, carding machine, cross-lapper, needle punching machine OD II
Carding willow, feeding chute, carding machine, cross-lapper, needle punching machine OUG II
Carding willow, feeding chute, carding machine, lap winder drum
Fibre fineness1 to 28 dtex
Working width600 mm
Working speedmax. 4 m/min
Basis weight range50 - 600 gsm
Processing of primary fibres, secondary fibres and selected plant fibres
  •  Needle punched and stitch-bonded nonwovens made of staple fibres
ConfigurationFibre opening, blending box, feeding chute, carding machine, cross lapper, needle punching machine OD II, alternatively stitch-bonding machines Malivlies or Kunit
Fibre fineness1 to 28 dtex
Working width1000 to 2400 mm
Working speedmax. 10 m/min
Basis weight range50 - 1500 gsm
Processing of primary fibres and selected plant fibres

 


ConfigurationFibre preparation, randomizing card, hydroentanglement unit with two drums, double drum suction dryer, winder
Fibre fineness0,7 to 7 dtex
Working widthup to 1000 mm
Working speedmax. 80 m/min
Working medium pressuremax. 42 MPa
Nozzle bar (1st drum)4
Nozzle bar (2nd drum)2
Basis weight range25 - 100 gsm (in line web formation)
25 - 500 gsm (spunlace process without web formation)

  •  Randomized nonwovens from longer fibers and recyclates, thermally bonded
ConfigurationFibre opening, feeding chute, web forming unit, delivery belt, air through oven
Working width1100 mm
Basis weight range500 - 3000 gsm
Processing of primary fibres, reclaimed fibres, plant fibres, non-fibrous textile recyclates
  •  Randomized nonwovens from short fibres, thermally bonded
ConfigurationFibre metering, web forming unit, delivery belt, air through oven
Working width1100 mm
Basis weight range30 - 800 gsm
Processing of primary fibres, secondary fibres, plant fibres, fluff pulp, metal and ceramic short fibres

  •  Three-dimensional stitch-bonded nonwovens made of staple fibres
ConfigurationTwo-stage machine system with direct feed of lengthwise orientated fibre web from nonwoven line 1 or2
Fibre fineness1 to 10 dtex
Working width600 und 1600 mm
Working speedmax. 2 m/min
Basis weight range120 - 600 gsm
  •  Stitch bonded fibre nonwovens, bonded by fibre meshing
ConfigurationDirect feed from cross lapper Nonwoven line 2
Machine gaugeF18
Fibre fineness1 to 10 dtex
Working width1000 to 2000 mm
Working speedmax. 3 m/min
Basis weight range80 - 500 gsm

 

  •  Stitch bonded fibre nonwovens, bonded by overstitching with thread system
ConfigurationStand-alone machine with web feeding from roll
Machine gaugeF1 to F18
Fibre fineness1 to 10 dtex
Working widthup to 2000 mm
Working speedmax. 4 m/min
Basis weight range80 - 500 gsm

  • Needle-punched spacer nonwovens from prefabricated nonwovens with possible central filling
ConfigurationStand-alone machine with web feeding from roll and partial needling
Working widthup to 1000 mm
Working speedmax. 3 m/min
Distance between websup to 25 mm
Possible fillingsParticles, tubes, profiles, films, etc.

 


Fields of application

 

 

Research News

Voluminous filter media with high dimensional stability


09/2017-08/2019

The main task in a research project was to increase the dimensional stability of the filter material/pile fibre nonwoven fabric and to reduce the unbalanced strength and elongation behaviour towards MD:CD=1:1. This could be realised on the one hand by the additional spunlace layer applied to the mesh side of the Kunit nonwoven fabric, and on the other hand by the use of the Maliknit process, in which a crosswise laid fibre nonwoven is feeded into the Kunit machine (see Fig.). The testing of the filter materials in incineration plants on an industrial scale was carried out together with the project partners Institut für Luft- und Kältetechnik gGmbH, Dresden, and the company Endress Holzfeuerungsanlagen GmbH, Burgbernheim.


Any questions?

Your contact for the project

Dr.-Ing. Barbara Schimanz
+49 371 5274-202
barbara.schimanz@stfi.de

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Completed projects

Cooperations & Networks

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