Reifenhaeuser Gmbh & Co Kg Maschinenfabrik

Fibertex Personal Care A/s

Mitsui Chemicals Asahi Life Materials Co., Ltd.

Asahi Kasei Kabushiki Kaisha

Borealis Ag

Reifenhauser Gmbh & Co Kg Maschinenfabrik

Pfnonwovens Holding S.r.o

Pfnonwovens Czech S.r.o.

Patrick Bohl

Jingbo Wang

Tobias Wagner

Sebastian Sommer

Detlef Frey

Michael Kauschke

Hans-Georg Geus

Andreas Roesner

Henk Van Paridon

Bernd Kunze

Hans Georg Geus

Gerold Linke

Zdenek Mecl

Thomas Broch

Christine Noack

Morton Rise Hansen

Kazuya Zeisho

Andreas Rösner

Nikol Polaskova

Gustaf Tobieson

Mathias Agersnap Scherer

Joachim Edmund Fiebig

Morten Rise Hansen

Hansen Morten Rise

Tristan Kretschmann

Zeisho Kazuya

Thomas Wagner

A method for producing a nonwoven fabric made of crimped synthetic fibers, wherein the synthetic fibers are spun and are deposited on a conveyor as a nonwoven web. The deposited nonwoven web is pre-bonded by means of at least one first hot-air bonding device, wherein a main suction air is sucked from below through the conveyor in the area of fiber deposition. A first suction air is sucked from below through the conveyor in the region of the first hot-air bonding device. The air speed of the main suction air is greater than the air speed of the first suction air.

Method and apparatus for making nonwoven fabric of crimped synthetic fibers

A spunbond nonwoven laminate has a first spunbond nonwoven layer having crimped filaments formed by a first component on an outer surface of the filaments of the first layer consisting or substantially consisting of a polyolefin and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the first layer. A second outermost spunbond nonwoven layer on the first layer having filaments as a cover layer and formed by a first component on an outer surface of the filaments of the second layer consisting or substantially consisting of a polyolefin, and a second component consisting or substantially consisting of a plastic having a higher melting point than the polyolefin of the first component of the filaments of the second layer.

Spunbond laminate and method of making same

A nonwoven laminate has a first spunbonded nonwoven web formed by crimped multicomponent filaments having a degree of crimp of more than 2.5 loops per om of their length and a second spunbonded nonwoven web formed by continuous filaments having only one elastomer based on polypropylene with a mesopentad fraction of more than 70%.

Nonwoven laminate

A spunbond nonwoven textile is made of endless crimped bicomponent or multicomponent filaments having an eccentric core-sheath configuration. The sheath of the filaments in the filament cross-section has a substantially constant thickness of 0.1 to 5 μm over at least 20% of the filament outer surface.

Spunbond nonwoven of continuous filaments and of making same

A laminate has first and second spunbonded nonwoven layers at least one of which comprises or consists essentially of crimped continuous filaments that are bicomponent filaments having a first component based on polypropylene and a second component based on polypropylene. A specific density ρ (g/cm) of the spunbonded nonwoven laminate depending on the surface density of the spunbonded nonwoven laminate lies below a density limit ρdefined by the following equation:ρ=9 cm×surface density g/cm+0.0393 g/cm.

Spunbonded laminate

A nonwoven web is made by displacing an air-permeable mesh-belt conveyor in a horizontal travel direction and spinning and then depositing crimped continuous filaments as a web at a deposit region on the air-permeable mesh-belt conveyor. A first preconsolidation stage is provided downstream of the deposit region and a second preconsolidation separated by a suction gap from the first stage. Air is drawn air through the web and the conveyor at the deposit region at a first predetermined speed, the first and second consolidation stages at a second and third predetermined speeds, and at the suction gap either not at all or at a fourth predetermined equal to at most substantially less than the second predetermined speed.

Method and apparatus for making a nonwoven from crimped filaments

A nonwoven laminate having at least two nonwoven layers is made by first spinning, cooling, and stretching, first crimped multicomponent filaments to form a first nonwoven web that is deposited on a deposition device. Then second continuous continuous filaments including an elastomer based on polypropylene are spun, cooled, and stretched to form a second nonwoven web that is deposited on the first nonwoven web and thereby forming the nonwoven laminate that it then consolidated.

Method of making a nonwoven laminate

A spunbond nonwoven laminate has a plurality of stacked spunbond nonwoven layers, namely at least two and at most four spunbond nonwoven layers that have crimped continuous filaments or consist of crimped continuous filaments. The degree of crimping of the filaments is different in each of these spunbond nonwoven layers, and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two, preferably at least three, and more preferably with at least four loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments, particularly bicomponent filaments, with a first plastic component and a second plastic component present in the respective filament in a proportion of at least 10 wt %.

Method of making a spunbond nonwoven laminate

Method of making a spunbond laminate

An apparatus for making a nonwoven fabric from thermoplastic plastic filaments has an air permeable deposit conveyor having a horizontal face displaceable in a horizontal travel direction and a spinneret above the conveyor for spinning the filaments and depositing the spun filaments on the deposit conveyor in a deposit area of the conveyor as a nonwoven web for conveyance in the travel direction. An extractor beneath the conveyor draws air or process air through the deposit conveyor in the deposit area in a main extraction area below the deposit conveyor and is delimited by, relative to the travel direction, upstream and downstream suction partitions. One of the partitions has an upper edge set at a predetermined vertical spacing below the conveyor equal to between 10 mm and 250 mm.

Making a nonwoven from filaments

A spunbond nonwoven laminate has a stack of at least two and at most four spunbond nonwoven layers each formed by or consisting of crimped continuous filaments. A degree of crimping of the filaments in each of the spunbond nonwoven layers is different from a degree of crimping in each of the other spunbond nonwoven layers and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments each having at least one first plastic component and at least one second plastic component with each of the plastic components being present in the respective filament in a proportion of at least 10 wt %.

Spunbond nonwoven laminate and method of making same

Spunbond laminate

Growing community of inventors

Hennef, Germany

Patrick Bohl