A method of making a fibrous preform in carbon and/or fibres of a carbon precursor may include superposing at least two layers of carbon fibres and/or fibres of a carbon precursor according to a predefined superposition axis Z so as to form a multilayer body. The method may also include needle-punching via least one first needle-punching device the multilayer body in a needle-punching direction substantially parallel to the superposition axis Z to arrange at least part of the fibres parallel to the superposition axis Z, so as to obtain a needle-punched multilayer body. An optional step may include superposing with each other according to the superposition axis Z two or more of the needle-punched multilayer bodies, obtained separately by applying the above steps.

A nonwoven fabric that is fabricated is described, which includes a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m.Math.K or less and a thermoplastic fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more and having a density of more than 50 kg/m.sup.3 and less than 200 kg/m.sup.3, where the nonwoven fabric exhibits high flame-shielding performance and has a heat insulating property.

A nonwoven fabric that is fabricated is described, which includes a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m.Math.K or less and a thermoplastic fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more and having a density of more than 50 kg/m.sup.3 and less than 200 kg/m.sup.3, where the nonwoven fabric exhibits high flame-shielding performance and has a heat insulating property.

A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure.

A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure.

The invention pertains to a method for manufacturing a textile product comprising providing a first sheet having a front surface and a back surface, covering the back surface of the sheet with a porous layer having a porosity of 50% to 99%, the layer comprising a thermoplastic material, forming a pile on the front surface of first sheet by stitching one or more yarns through the first sheet, the one or more yarns having a free end that forms the said pile and a locked end that extends into the porous layer, thereby forming an intermediate product, processing the intermediate product by feeding this product along a body having a heated surface, the porous layer being pressed against the said heated surface, to melt at least a fraction of the thermoplastic material, cooling the molten fraction of the thermoplastic, thereby connecting the locked end of the one or more yarns to the first sheet, and optionally connecting a second sheet to the processed intermediate product, using an adhesive applied between the processed surface of the intermediate product and the second sheet. The invention also pertains to a primary backing for use in this method and to a method for manufacturing this primary backing.

The invention pertains to a method for manufacturing a textile product comprising providing a first sheet having a front surface and a back surface, covering the back surface of the sheet with a porous layer having a porosity of 50% to 99%, the layer comprising a thermoplastic material, forming a pile on the front surface of first sheet by stitching one or more yarns through the first sheet, the one or more yarns having a free end that forms the said pile and a locked end that extends into the porous layer, thereby forming an intermediate product, processing the intermediate product by feeding this product along a body having a heated surface, the porous layer being pressed against the said heated surface, to melt at least a fraction of the thermoplastic material, cooling the molten fraction of the thermoplastic, thereby connecting the locked end of the one or more yarns to the first sheet, and optionally connecting a second sheet to the processed intermediate product, using an adhesive applied between the processed surface of the intermediate product and the second sheet. The invention also pertains to a primary backing for use in this method and to a method for manufacturing this primary backing.

A nonwoven fabric sheet exhibiting high flame shielding performance, heat insulating property, and wear resistance is described, where the nonwoven fabric sheet is fabricated and includes at least one fire barrier layer formed of a web containing a non-melting fiber A having a high-temperature shrinkage rate of 3% or less and a thermal conductivity conforming to ISO22007-3 (2008) of 0.060 W/m.Math.K or less and in which the fire barrier layer is coupled with a scrim layer containing a carbide-forming heat resistant fiber B having a LOI value conforming to JIS K 7201-2 (2007) of 25 or more.

The invention relates to a method for manufacturing a nonwoven fabric having an air permeability of 2000 l/m.sup.2/s or less when measured at a pressure difference of 200 Pa according to EN ISO 9237, the method comprising the steps of: providing at least two sets of fibers, wherein a first fiber set comprises a significant level of splittable fibers and a second fiber set comprises a low level of splittable fibers or no splittable fibers; using the first fiber set to form at least one first fibrous web in a first web formation process and using the second fiber set to form at least one second fibrous web in a second web formation process; stacking the first and second webs so obtained to provide a multilayer web including two distinct layers of fibrous webs; and bonding the multilayer web. The invention further relates to a nonwoven fabric obtainable by such process and the use of such nonwoven fabric in acoustic isolation applications.

Disclosed is a nonwoven laminate having a texture for improved absorption and distribution of body liquids in sanitary products. The absorption and distribution effect is caused by perforations distributed in a pattern-like manner in combination with elevations present on one side of the nonwoven laminate.