Abstract: The present invention concerns a nonwoven fabric the fibers of which have polyethylene on at least part of their surface, where the fibers are thermally bonded and the non-woven fabric exhibits an abrasion of less than 0.5 mg/cm2, in particular of less than 0.4 mg/cm2, and an embossed area fraction of less than 35%, in particular of less than 28%. Furthermore a device is made available for the manufacture of a non-woven fabric, using a polyethylene-containing polymer, with a take-down system underneath a spinning plate that causes the take-down of the polyethylene, where the spinning plate has an L/D ratio of between 4 and 9.

Abstract: The invention provides a roll assembly including a pair of cylindrical rolls that are positioned in an opposing cooperating relation for receiving a sheet material therebetween. A plurality of projections on at least one of the rolls extending radially outward from a surface thereof and a plurality of corresponding recesses is provided on the other roll. The projections and corresponding recesses are positioned and arranged on the rolls for contacting and engaging a sheet passing between the pair of rolls. The projections each include an outermost surface portion that is positioned for contacting a discrete portion of the sheet and for entering a corresponding recess on the opposite roll. When rolls rotate about their axes, the projections engage the discrete portion of the sheet material which results in the discrete portion entering the recesses with the projections so as to stretch the sheet in multiple directions.

Abstract: Disclosed is a spunbonded non-woven made of polyolefin filaments having a titer <1.6 dtex, the spunbonded non-woven having a surface weight ?20 g/m2, a density ?0.06 g/cm3, a maximum tensile force of between 9.5 and 62 N in the direction of the machine and of between 4.5 and 35 N perpendicular to the direction of the machine.

Abstract: The present invention relates to the production of a non-woven material having high extensibility and comprising polymer fibers using mixtures with amphiphilic block copolymers as compatibilizers for preparing blends, as well as their production and use.

Abstract: The present invention relates to the perforation of nonwovens with a perforating roll and an opposing roll. The perforating roll and opposing roll form a gap, through which a nonwoven being perforated, is guided and perforated. The perforation apparatus comprises a feed device and a withdrawal device. The feed device is arranged such that the nonwoven being perforated advances first onto the opposing roll, before it enters the gap. The withdrawal device is arranged such that after leaving the gap, the perforated nonwoven remains on the perforating roll. Furthermore, a perforation method and a corresponding nonwoven structure are provided.

Abstract: The invention relates to polyolefin materials, in particular fibers, and/or filaments, and/or nonwovens, and/or nonwoven products made from at least one polyolefin and a melt additive containing a fatty acid ester, wherein a subsequent activation of the fatty acid ester contained in the melt additive occurs on the surface of the polyolefin materials by applying a formulation, which contains a silicone compound and a quaternary ammonium compound.

Abstract: The invention relates to a spun-bonded nonwoven fabric made of polyolefin filaments having a titer<1.6 dtex, the spun-bonded nonwoven fabric having a basis weight?18 g/m2, a waterproofness of <15 cm measured as a water column, and an air permeability of at least 230 m3/(m2·min), wherein the product of the air permeability and the basis weight is ?5000 g/(m·min).

Abstract: A nonwoven and a nonwoven fiber are disclosed. The fleece or fleece fiber include a polymer mixture. The polymer mixture includes a polyethyelene and a LLDPE. Various applications for the fleece are proposed.

Abstract: The present invention concerns a spinneret plate (1) for manufacturing a nonwoven fabric, having multiple non-round holes, which are similar to trilobal or multiarmed holes (3) in particular, for polymer flow outlet to produce filaments, in which identical holes are positioned in rows offset relative to one another. At least a first row (2) has a positional arrangement of the holes that differs from the positional arrangement of a second row (7) of rows through rotation of the holes.

Abstract: The present invention relates to a perforated thermoplastic structure comprising at least a first layer (8) and a plurality of perforations, which extend through the first layer (8). The perforations have a three-dimensional, preferably approximately conical or cylindrical shape (18). A second layer forms an inner surface (20) of the shape (18), whereas the first layer forms an outer surface (21) of the shape (18). The first layer contains a thermoplastic material, whose melting point is lower than a melting point of the thermoplastic material of the second layer.

Abstract: The present invention relates to perforation device for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of between 0.15 and 0.25 and a ratio of hole size to embossed point size of between 0.15 and 0.25.

Abstract: This invention relates to a spunbonded nonwoven made of thermoplastic material, which exhibits a filament diameter of less than 1.0 ?m. The filaments are made from bursted fibers, whereby the filaments exhibit a length of at least five centimeters and are connected to one another at discrete points.

Abstract: The present invention relates to a multilayer product 1 having at least one first layer 2, an absorbent intermediate layer 3 and a second layer 4, whereby at least the first layer 2 contains at least one first material 5 and one second material 6. The first layer 2 and/or the second layer 4 is at least partially liquid permeable. The first material 5 has a higher melting point than the second material 6, with the second material 6 creating a bond to the second layer 4.

Abstract: The present invention relates to a method for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of between 0.15 and 0.25 and a ratio of hole size to embossed point size of between 0.15 and 0.25.

Abstract: The present invention concerns a spinneret plate (1) for manufacturing a nonwoven fabric, having multiple non-round holes, which are similar to trilobal or multiarmed holes (3) in particular, for polymer flow outlet to produce filaments, in which identical holes are positioned in rows offset relative to one another. At least a first row (2) has a positional arrangement of the holes that differs from the positional arrangement of a second row (7) of rows through rotation of the holes.

Abstract: Disclosed is a method for producing a non-woven fiber fabric comprising a plurality of perforated structures extending along the entire cross-section of said fabric. The inventive method consists of the following steps: in a first step, the matted fibers are placed on a belt screen to form a web of fibers; in a second step, the web of fibers is conveyed to a perforated-structure manufacturing unit, in a third step, the perforated structures are manufactured by mechanically impinging upon the fibers, whereby the mechanical impingement upon said fibers does not affect the mechanical and chemical structure thereof; and in a fourth step, the web of fibers provided with said perforated structures is compacted in a compaction unit for form a non-woven fabric.

Abstract: A process is disclosed for the manufacture of a spunbonded fabric consisting of thermobonded curled bicomponent fibers where the bicomponent fibers consist of two plastic materials with different properties. The process according to the invention consist of three steps: the fibers spun from the two plastic materials are drawn off uncurled and stretched in a first step. In a second step the fibers are placed on a sieve belt and thermobonded. In a third step the bicomponent fibers of the obtained nonwoven fabric are finally curled by lengthwise and/or transverse stretching and heat treatment.

Abstract: A process is disclosed for the manufacture of a spunbonded fabric consisting of thermobonded curled bicomponent fibers where the bicomponent fibers consist of two plastic materials with different properties. The process according to the invention consists of three steps: the fibers spun from the two plastic materials are drawn off uncurled and stretched in a first step. In a second step the fibers are placed on a sieve belt and thermobonded. In a third step the bicomponent fibers of the obtained nonwoven fabric are finally curled by lengthwise and/or transverse stretching and heat treatment.

Abstract: A process for producing a multilayered elastic sheetlike structure; and a multilayered elastic sheetlike structure are described.The multilayered elastic sheetlike structure comprises at least one elastomeric layer of a film, a sheet or a fibrous structure and at least one layer of bonded, inelastic fibrous web connected to the elastomeric layer at permanent connection sites. The inelastic layer of fibrous web, prior to its connection with the elastomeric layer, is initially drawn, so that the fibers of the inelastic layer of fibrous web essentially are aligned in the direction or initial drawing and that the inelastic layer of fibrous web in the initially-drawn state is connected to the elastomeric layer.

Abstract: A coated non-woven material, method of making such material, and disposable absorbent hygiene article are disclosed. The coated non-woven material comprises a base layer made of a non-woven web of fibrous material and at least one layer of a thermoplastic film. The peel strength of the material is equal to or below 98.times.10.sup.-3 kN/m, as measured according to the NFT 76-112 standard, wherein the peeling angle is specified at 180.degree. and the pull speed is specified at 200 mm/mn. In one embodiment, the coated non-woven material is incorporated into a disposable diaper as a liquid-impervious backsheet.