Abstract

Device for spraying jets of water comprising a body (4) defining a chamber (6) and delimiting a longitudinal outlet (7) to the exterior, and a single one-piece plate (1) containing perforations which is interposed between the chamber (6) and the outlet (7) and is supported by two longitudinal bearing faces (3) that are curved to give a curved surface having the same longitudinal generatrix, its concavity being turned towards the outlet (7).

IPC Classes  ?

• B05B 1/20 - Perforated pipes or troughs, e.g. spray boomsOutlet elements therefor

Abstract

The invention relates to equipment for producing a non-woven web, comprising a device (107, 108) for driving a filament packet, using an air stream, towards a conveyor (101) and an electrostatic device (117) arranged so as to apply electrostatic forces to the filaments of the driven packet, characterised by a means (801, 804) for removing dust from the driving air stream.

IPC Classes  ?

• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to a spunbond tower that includes a die (103), a device (106) for cooling the filaments formed by the die, a device (107) for stretching the cooled filaments, a system (108) for forming a non-woven web (110) on a mat, said system including an electrostatic device (117) and a dehumidifier mounted at least on a formation air inlet between the bottom of the stretching device and the top of the formation system.

IPC Classes  ?

• D01D 5/098 - Melt-spinning methods with simultaneous stretching
• D04H 3/16 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Abstract

The invention relates to an equipment that comprises a first member (1) movable in a displacement direction and through which a fluid can flow, a second movable member (2), and a device (3) for projecting a jet of fluid, characterised in that the first movable member (1), when viewed in the direction of the jets of the projection device, is provided between the projection device (3) and the second movable member (2) at the jet projection point on the first movable member (1).

IPC Classes  ?

• D04H 1/74 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel
• D04H 13/00 - Other non-woven fabrics

Abstract

The invention relates to a drum wherein the lateral surface thereof is provided with perforations that are separated by full parts from recessed parts and which are present on the full parts with an outer lateral surface. Application: in an entanglement machine for a nonwoven, using water jets.

IPC Classes  ?

• D04H 3/10 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
• D04H 5/02 - Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
• D06B 23/02 - Rollers

Abstract

The invention concerns an installation for producing a nonwoven fabric comprising a spun bond lathe depositing a web of filaments on a first conveyor, the mat being consolidated on a first mobile element by entangling means. The invention is characterized in that it comprises means for passing, without any change in ratio, the mat of filaments on a first mobile element whereon the mat is consolidated by hydro-entangling means.

IPC Classes  ?

• B28B 5/00 - Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping