WO2004033781A2 - Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee - Google Patents
Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee Download PDFInfo
- Publication number
- WO2004033781A2 WO2004033781A2 PCT/FR2003/002940 FR0302940W WO2004033781A2 WO 2004033781 A2 WO2004033781 A2 WO 2004033781A2 FR 0302940 W FR0302940 W FR 0302940W WO 2004033781 A2 WO2004033781 A2 WO 2004033781A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- sheet
- web
- conveyor
- compacted
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/655—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—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
- D04H1/72—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 randomly arranged
- D04H1/732—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 randomly arranged by fluid current, e.g. air-lay
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—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
- D04H1/74—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 (anisotropic fleeces)
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—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
- D04H3/105—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 by needling
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—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
- D04H3/11—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 by fluid jet
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—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 filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—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
Definitions
- the present invention relates to processes and machines for producing a nonwoven, consisting of fibers or filaments made of an organic material, in particular natural or synthetic or artificial textile fibers or filaments.
- the fibers or filaments can in particular be made of polypropylene, polyester, or another plastic material and their mixtures.
- a process for the production of a nonwoven is already known in which a moving web of filaments or fibers is compacted in the direction of the thickness at a compacting station. Compaction is obtained by passing the moving web in the nip between two movable elements moving in the same direction.
- One of the movable elements can be a conveyor or a cylinder and the other can also be a conveyor or a cylinder. Downstream of the compacting station, the compacted sheet is consolidated into a consolidated sheet at a consolidation station. Consolidation can be carried out by mechanical needling, by chemical or thermal bonding. Preferably, a hydraulic bonding by water jets is used.
- the nonwovens obtained have a ratio of a property in the long direction, and in particular of the tensile strength, to this same property in the cross direction, which is much greater than one.
- the long direction is defined by the direction in which the web moves when it is sent to the compacting station, while the cross direction is the direction perpendicular to this direction in the plane of the web.
- the invention provides for this by a process for the production of a nonwoven in which a moving web of filaments or fibers of organic material is compacted in the direction of the thickness, at a point in its travel path at a compacting station, then the compacted sheet is consolidated into a consolidated sheet at a consolidation station downstream, in the direction of movement of the sheet, from the compacting station.
- the speed of movement of the sheet is reduced to the very point of its travel path where it is compacted.
- the property whose ratio is modified in the process according to the invention is preferably the tensile strength, maximum at break, but it is also the elongation at traction or another property of traction. It has also been found that the process according to the invention makes it possible to improve the resistance of nonwovens to delamination.
- the sheet is wetted at the compacting station or just downstream from this station.
- wetting the deformation of the fibers of the tablecloth and thus preserves the relationship between the property of the nonwoven in the long direction and the property of the nonwoven in the cross direction, is obtained at the compacting station, at the outlet thereof while, without fixing by wetting, the fibers tend, after they are no longer compacted, to return, at least in part, to their initial orientation.
- just downstream is meant in particular that the wetting takes place before the arrival of the sheet at the consolidation station.
- this fixation can already have a certain consolidation effect, that is to say entanglement of the fibers. In some cases, it is wetted using a liquid other than pure water.
- the compacted sheet is then consolidated into a consolidated sheet at the consolidation station, which is downstream in the direction of movement of the sheet from the compacting station and downstream from the point where, if necessary, the wetting of the sheet .
- Consolidation can be carried out anywhere known means, in particular by mechanical needling using metal needles, by chemical bonding, by thermal bonding using hot-melt fibers and by using impregnation means such as a scarf. or a spray or foam spray with a binder.
- the sheet is preferably a sheet of filaments coming from a machine operating in the melt or from a sheet of fibers coming from a nonwoven card; it can also come from a machine operating by air flow called "ugly air” or from a lapper-stretcher.
- the invention is particularly applicable for surface weights of 0 to 500 g / m 2 and preferably 20 to 300 g / m 2 of the sheet.
- the invention makes it possible in particular to manufacture filtration products, geotextiles, agrotextiles in civil engineering and in construction, in the automobile, furniture, clothing, in medical applications, in roof seals, products sound and thermal insulation, dry or impregnated wiping products for household and hygiene.
- the invention also relates to a machine for producing a nonwoven comprising a first element for sending a sheet to means intended to compact it in the thickness direction, characterized in that said means are also means for reducing the speed of movement of the sheet to the point where it is compacted by the compacting means.
- the first element is preferably a conveyor, but it can also be a cylinder fed by a conveyor.
- the compacting means are produced by the formation of a pinch point between the first element and another mobile element and the reduction in the speed of movement of the sheet is achieved by giving the other mobile element a linear speed less than that of the first element.
- the other mobile element can be a second conveyor or a second cylinder.
- the nipping preferably extends over the entire width of the ply, relating to an entire generatrix of the nipping cylinder.
- the machine comprises means intended to wet the sheet while it is compacted or has just been compacted and before it arrives at consolidation means.
- the consolidation means are arranged so as to consolidate the sheet as it passes over the other mobile element, since the consolidation is all the better the lower the speed of passage of the sheet to the consolidation station. .
- the invention finally relates to the use of a method or a machine according to the invention for reducing the ratio of a property of a nonwoven in the long direction to this property in the cross direction and more particularly for decrease the ratio of the tensile strength at break of a nonwoven in the long direction to this tensile strength at break in the cross direction.
- Figures 1 to 4 are side views of four machines according to the invention.
- the machine represented in FIG. 1 comprises a conveyor comprising a frame 1 resting by four feet 2 on the ground S.
- This frame carries three return rollers 3, a tensioning roller 4 and a guide roller 5 for guiding a mat 6 permeable to conveyor water.
- Above the upper strand 7 of the conveyor is mounted a cylinder 8 of horizontal axis perpendicular to the direction of movement of the strand 7, while vertically of this cylinder 8 and below the strand 7 is mounted an injector 9 mooring.
- the distance between the strand 7 and the lowest point of the cylinder 8 is so small that when a sheet is conveyed and passes over the strand 7, it comes into the nip between the strand
- the cylinder 8 is a hollow cylinder which rotates anticlockwise while the web which passes over the strand 7 goes from left to right in the drawing.
- the cylinder 8 comprises a quadrant 8a between 4 hours and 6 hours, subjected to a vacuum so that the ply is pressed against the cylinder 8 from the outlet of the nip to the injectors 10.
- the machine shown is preferred when the thickness of the sheet is greater than 50 mm. It comprises the same elements as the machine of FIG. 1 but, in addition, an additional conveyor carried by four feet 11 and brackets 12.
- the conveyor has a guide roller 13, a tensioner roller 14, a return roller 15 and the conveyor-permeable mat 15 passes around the cylinder 8 and in the nip between the cylinder 8 and the mat 7.
- the machine shown in Figure 3 includes, like that of Figures 1 and 2, a first conveyor 1 to 7, identical to the conveyor of Figure 1, except that it comprises a roller 17 supporting the upper strand 7 of the carpet.
- the conveyor 18 has return rollers 19, a tensioning roller 20 and a guide roller 21, the conveyor further has a return roller 22 which is in contact with the upper strand 7 of the belt of the first conveyor and which is disposed on this strand upstream of an injector 23 making it possible to wet a sheet which arrives on the belt 7 from the left to the right in the figure.
- the roller 17 is just downstream of the injector 23 and it is arranged in such a way with respect to the roller 22 that it maintains the strand 7 in close contact with the lower strand of the belt 24 which passes on the upper conveyor by turning anti-clockwise.
- the sheet is thus compressed between the upper strand 7 and the lower strand of the mat 24, is wetted at the wetting point 23 and then goes to a preliminary station 25 of consolidation by jets of water before being further consolidated on the cylinder 8 by devices 10 with water jets.
- FIG 4 rests on the ground by feet 27 a conveyor 28 having a deflection roller 29, a tensioning roller 30 and a roller 31 for guiding a mat 32 permeable to water which is wound on a cylinder 33 hollow opposite which are mounted devices 34 of consolidation by water jets.
- Another conveyor 35 carried by supports 36 and brackets 37, comprises on a frame three return rollers 38, a tensioning roller 39 and a guide roller 40.
- the conveyor carries a device 41 for spraying water which will be used for mooring. This water spraying device is vertically above the highest point of the cylinder 33.
- the tablecloth arrives from left to right in the figure on the upper strand of the carpet 32, passes between the cylinder 33 and the lower strand carpet 42 of the upper conveyor where it is compressed while being moistened by the device 41, comes out along the cylinder 33 to be consolidated by the consolidation devices 34, then goes to a cylinder 43 cooperating with additional consolidation devices 44.
- the following examples illustrate the invention.
- a sample is conditioned for 24 hours and the test is carried out at 23 ° C and a relative humidity of 50%.
- a dynamometer is used for the test, comprising a set of fixed jaws and a set of movable jaws moving at a constant speed. The jaws of the dynamometer have a useful width of 50 mm.
- the dynamometer is equipped with a recorder which makes it possible to trace the curve of the tensile force as a function of the elongation. 5 samples are cut of 50 mm plus or minus 0.5 mm in width and 250 mm in length, this in the long direction and in the cross direction of the nonwoven.
- At least 3 samples are cut with an area of at least 50,000 mm 2 with a cutting device called a cutter.
- Each sample is weighed on a laboratory balance with an accuracy of 0.1% of the mass of the weighed samples.
- Example 1 (comparative) A sheet of approximately 50 g / m 2 composed of 100% polyester fibers of 1.7 dtex and 38 mm in length is produced at a speed of 50 m / min. by a card type card for nonwovens.
- This sheet is continuously supplied to a transport and compacting conveyor of a binding system by water jets conforming to FIG. 1.
- the transport conveyor is a polyester fabric of permeability 800 CFM.
- the transport conveyor has a linear speed of 50 m / min.
- the transport conveyor is in contact over a length of 10 nm with the cylinder.
- the speed of the cylinder is synchronized with the speed of the transport conveyor at a linear speed of 50 / min.
- the sheet of fibers is compacted between the transport conveyor and the binding cylinder coated with a micro-perforated envelope, the holes being arranged in a random manner, as described in French patent 2,734,285.
- the sail is wet and slightly consolidated by a hydraulic injector projecting water jets of 140 microns in diameter at a speed of 54 m / s or a pressure of 15 bars. The jets being spaced from each other by a distance of 0.8 mm in two rows.
- the nonwoven thus obtained is then transferred to a suction mat connected to a vacuum generator and then dried at a temperature of 110 ° C in a through air oven.
- a nonwoven weighing about 50 g / m 2 is obtained.
- the nonwoven has a regular, uniform appearance.
- Example 2 The conditions of Example 1 are repeated. For this test, the speed of the cylinder is reduced by 10% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the cylinder speed is 45 m / min. The nonwoven has a regular appearance.
- Example 3 The conditions of Example 1 are repeated. For this test, the speed of the cylinder is reduced by 20% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the cylinder speed is 40 m / min. The nonwoven is regular.
- Example 4 The conditions of Example 1 are repeated. For this test, the speed of the cylinder is reduced by 25% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the cylinder speed is 40 m / min.
- the nonwoven is irregular and has wavy fibers in the cross direction.
- Example 5 The conditions of Example 1 are repeated. For this test, the transport conveyor is no longer in contact with the cylinder. It is now tangent to it and is about 1 mm away from the cylinder. This new adjustment is obtained by lowering the idler roller of the conveyor immediately downstream of the point of tangency of the conveyor relative to the cylinder.
- the speed conditions are identical to Example 2 in which the speed of the conveyor is 50 m / min. and the cylinder speed is 45 m / min.
- the nonwoven is regular.
- Example 6 The conditions of Example 5 are repeated. For this test, the speed of the cylinder is reduced by 20% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the cylinder speed is 40 m / min. The nonwoven is regular.
- Example 7 The conditions of Example 5 are repeated. For this test, the speed of the cylinder is reduced by 30% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the speed of the cylinder is 35 m / min. The nonwoven is regular.
- Example 8 The conditions of Example 5 are repeated. For this test, the speed of the cylinder is reduced by 40% relative to the speed of the conveyor. That is, the speed of the transport and compaction conveyor is always 50 m / min. and the cylinder speed is 30 m / min.
- the nonwoven has surface irregularities, wavelets oriented in the cross direction of the web and an irregularity in its opacity.
- Example 9 (comparative) A sheet of approximately 90 g / m 2 composed of 65% viscose fibers of 1.7 dtex and 40 mm in length and 35% of polyester fibers of 1.7 dtex and 38 mm length is produced at a speed of 25 m / min. by a card type card for nonwovens.
- This sheet is continuously supplied to a transport and compacting conveyor of a binding system by water jets conforming to FIG. 2.
- the installation differs from that of FIG. 1 by the addition of a conveyor upper wrapping around the cylinder.
- the transport conveyor is a polyester fabric with a permeability of about 800 CFM.
- the transport conveyor has a linear speed of 30 m / min.
- the upper conveyor wrapped around the cylinder is also a polyester fabric with a permeability of approximately 500 CFM.
- the transport conveyor is tangent to the second conveyor and the cylinder and is approximately 1.5 mm away from the second conveyor at the point of convergence.
- the speed of the upper conveyor and the cylinder is synchronized with the speed of the transport conveyor at a speed of 25 m / min.
- the sheet of fibers is gradually compacted between the two conveyors immediately after compaction, the web is wet and slightly consolidated by a hydraulic injector projecting water jets of 140 microns in diameter at a speed of 63 m / s or 20 bars of pressure.
- the jets being spaced from each other by a distance of 0.8 mm in two rows.
- the veil thus compacted and wet and slightly consolidated is then subjected to the action of two successive hydraulic injectors projecting water jets of 120 microns in diameter at increasing speeds of 125 m / s and
- the nonwoven thus obtained is then transferred to a suction mat connected to a vacuum generator and then dried at a temperature of 110 ° C in a through air oven.
- Example 9 The conditions of Example 9 are repeated.
- the speed of the upper conveyor and of the cylinder is reduced by 20% relative to the speed of the conveyor.
- the speed of the transport and compaction conveyor is always 25 m / min. and the speed of the cylinder is 20 m / min.
- the nonwoven is regular.
- Example 9 Repeating the conditions of Example 9. For this test, the speed of the upper conveyor and the cylinder is reduced by 30% * relative to the conveyor speed. In other words, the speed of the transport and compaction conveyor is always 25 m / min. and the cylinder speed is 17.5 m / min.
- the nonwoven is regular.
- Example 12 The conditions of Example 9 are repeated.
- the speed of the upper conveyor and of the cylinder is reduced by 40% relative to the speed of the conveyor.
- the speed of the transport and compaction conveyor is always 25 m / min. and the cylinder speed is 17.5 m / min.
- the nonwoven is slightly irregular with a variation in its opacity which suggests a slip of fibers in the transverse direction.
- Example 13 (comparative) A sheet of approximately 60 g / m 2 composed of 80% of polyester fibers of 1.7 dtex and 38 mm in length and of 20% of so-called polyester / polyethylene bicomponent fibers of 3 dtex and 38 mm in length is produced at a speed of 30 m / min. by a card type card for nonwovens.
- This sheet is continuously supplied to a transport and compacting conveyor XX of a binding system by water jets conforming to FIG. 1.
- the transport conveyor is a polyester fabric.
- the transport conveyor has a linear speed of 30 m / min.
- the transport conveyor is tangent to a cylinder.
- the speed of the cylinder is synchronized with the speed of the transport conveyor at a speed of 30 M / min.
- the sheet of fibers is compacted between the transport conveyor and the binding cylinder coated with a micro-perforated envelope, the holes being arranged in a random manner, as described in French patent 2,734,285.
- the sail is wet and slightly consolidated by a hydraulic injector projecting 140 micron diameter water jets at a pressure of 70 bars. The jets being spaced from each other by a distance of 1, 2 mm in two rows.
- the veil thus compacted and wet and slightly consolidated is then transferred to a suction mat connected to a vacuum generator and then dried at a temperature of 130 ° C in a through air oven.
- a nonwoven weighing approximately 60 g / m 2 " is obtained.
- the nonwoven has a regular, uniform appearance and is bulky.
- Example 9 The conditions of Example 9 are repeated.
- the speed of the upper conveyor and of the cylinder is reduced by 30% relative to the speed of the conveyor.
- the speed of the transport and compaction conveyor is always 30 m / min. and the speed of the cylinder is 21 m / min.
- the nonwoven is regular and bulky.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Treatment Of Fiber Materials (AREA)
- Confectionery (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT03775475T ATE472002T1 (de) | 2002-10-11 | 2003-10-07 | Verfahren und vorrichtung zur herstellung von vliesstoffen unter verminderung der bewegungsgeschwindigkeit der verdichteten faserbahn |
US10/529,844 US7392575B2 (en) | 2002-10-11 | 2003-10-07 | Method and machine for producing a nonwoven fabric with reduction of displacement speed of the compacted mat |
AU2003283501A AU2003283501A1 (en) | 2002-10-11 | 2003-10-07 | Method and machine for producing a nonwoven fabric with reduction of displacement speed of the compacted mat |
EP03775475A EP1554421B1 (fr) | 2002-10-11 | 2003-10-07 | Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee |
DE60333113T DE60333113D1 (de) | 2002-10-11 | 2003-10-07 | Verfahren und vorrichtung zur herstellung von vliesstoffen unter verminderung der bewegungsgeschwindigkeit der verdichteten faserbahn |
BRPI0315245-6A BR0315245B1 (pt) | 2002-10-11 | 2003-10-07 | mÉtodo e mÁquina para a produÇço de um tecido nço-tecido. |
IL167871A IL167871A (en) | 2002-10-11 | 2005-04-05 | Method and machine for producing a nonwoven fabric with reduction of displacement speed of the compacted mat |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR02/12652 | 2002-10-11 | ||
FR0212652A FR2845697B1 (fr) | 2002-10-11 | 2002-10-11 | Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004033781A2 true WO2004033781A2 (fr) | 2004-04-22 |
WO2004033781A3 WO2004033781A3 (fr) | 2004-05-27 |
Family
ID=32039642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002940 WO2004033781A2 (fr) | 2002-10-11 | 2003-10-07 | Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee |
Country Status (10)
Country | Link |
---|---|
US (1) | US7392575B2 (fr) |
EP (1) | EP1554421B1 (fr) |
CN (1) | CN100457996C (fr) |
AT (1) | ATE472002T1 (fr) |
AU (1) | AU2003283501A1 (fr) |
BR (1) | BR0315245B1 (fr) |
DE (1) | DE60333113D1 (fr) |
FR (1) | FR2845697B1 (fr) |
IL (1) | IL167871A (fr) |
WO (1) | WO2004033781A2 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2911616A1 (fr) * | 2007-01-19 | 2008-07-25 | Rieter Perfojet Soc Par Action | Installation et procede de production d'une nappe a base de fibres ou de filaments |
DE102008013817A1 (de) * | 2008-03-12 | 2009-09-17 | Fleissner Gmbh | Verfahren und Vorrichtung zur Vorverfestigung eines Vlieses |
DE102008018976A1 (de) * | 2008-04-14 | 2009-10-15 | Fleissner Gmbh | Verfahren und Vorrichtung zur Herstellung eines Vliesstoffes |
US7631406B2 (en) * | 2004-06-23 | 2009-12-15 | Fleissner Gmbh | Device for hydrodynamic intertwining of fibers in a fiber web |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005033070A1 (de) * | 2005-07-15 | 2007-01-25 | Fleissner Gmbh | Vorrichtung zum Verfestigen einer Faserbahn mit Druckwasserstrahlen |
US7478463B2 (en) * | 2005-09-26 | 2009-01-20 | Kimberly-Clark Worldwide, Inc. | Manufacturing process for combining a layer of pulp fibers with another substrate |
DE102009012607A1 (de) | 2009-03-11 | 2010-09-16 | Fleissner Gmbh | Vorrichtung zum Bearbeiten eines Flors |
DE102009017729A1 (de) * | 2009-04-11 | 2010-10-14 | Fleissner Gmbh | Vorrichtung zum Verfestigen einer Faserbahn |
CN102388173B (zh) * | 2009-04-08 | 2014-06-18 | 特吕茨勒非织造布有限公司 | 用于压实纤维网的设备 |
DE102013101431B4 (de) * | 2013-02-13 | 2016-06-23 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung und Verfahren zum hydrodynamischen Verfestigen von Vliesen, Geweben und Gewirken |
JP6364804B2 (ja) * | 2014-02-14 | 2018-08-01 | セイコーエプソン株式会社 | シート製造装置、原料解繊装置 |
CN109322062B (zh) * | 2018-10-26 | 2021-02-02 | 大连民族大学 | 3d堆叠式多层电纺纤维逐层喷射方法 |
FR3099495B1 (fr) | 2019-07-30 | 2021-08-13 | Andritz Perfojet Sas | Installation de production de non-tissés |
FR3091541B1 (fr) | 2019-01-08 | 2022-04-22 | Andritz Perfojet Sas | Installation de production de non-tissés |
EP3908687B1 (fr) * | 2019-01-08 | 2023-05-31 | ANDRITZ Perfojet SAS | Installation et procede de production de non-tisses |
DE102021107902A1 (de) * | 2021-03-29 | 2022-09-29 | Andritz Küsters Gmbh | Anlage zur Verfestigung mindestens einer nass- oder trockengelegten Faserlage zu einer Vliesbahn, mit einem Förderer, der ein umlaufendes Band mit einem oberen Trum umfasst, auf welches die mindestens eine Faserlage ablegbar und in einer Produktionsrichtung verlagerbar ist |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB891143A (en) * | 1958-06-26 | 1962-03-14 | Joshua Harold Goldman | Improvements in a method of manufacturing a non-woven fibrous sheet |
FR2304696A1 (fr) * | 1975-03-19 | 1976-10-15 | Krupp Gmbh | Procede et dispositif pour la fabrication d'un voile de fibres enchevetrees presentant approximativement une meme resistance mecanique en direction longitudinale et en direction transversale |
EP0365826A1 (fr) * | 1988-09-27 | 1990-05-02 | Radex-Heraklith Industriebeteiligungs Aktiengesellschaft | Procédé et dispositif pour la production de panneaux à base de fibres minérales |
US5671518A (en) * | 1992-01-24 | 1997-09-30 | Isover Saint-Gobain | Methods for producing a mineral wool needle-felt and a mineral wool product using a thixotropic additive |
US6195845B1 (en) * | 1998-04-17 | 2001-03-06 | Thibeau | Method and an installation for forming a fiber web by the airlay technique |
FR2821866A1 (fr) * | 2001-03-06 | 2002-09-13 | Rieter Perfojet | Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression applique a la nappe |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT318252B (de) * | 1972-03-06 | 1974-10-10 | Fehrer Ernst Gmbh | Vorrichtung zum Einführen von Vliesen in Nadelmaschinen |
DE2306416A1 (de) * | 1973-02-09 | 1974-08-15 | Dilo Kg Maschf Oskar | Nadelmaschine zum herstellen von nadelfilzen |
FR2548695B1 (fr) * | 1983-07-07 | 1986-06-20 | Saint Gobain Isover | Formation de feutres a structure isotrope |
AU631217B2 (en) * | 1989-06-29 | 1992-11-19 | Isover Saint-Gobain | Mineral fibres collection process and device. |
US4963176A (en) * | 1989-10-06 | 1990-10-16 | Ppg Industries, Inc. | Method for making glass fiber mats using controllable fiber glass strand feeders |
FR2729404B1 (fr) * | 1995-01-12 | 1997-04-11 | Asselin | Aiguilleteuse et procede de commande d'avance associe |
FR2730246B1 (fr) * | 1995-02-03 | 1997-03-21 | Icbt Perfojet Sa | Procede pour la fabrication d'une nappe textile non tissee par jets d'eau sous pression, et installation pour la mise en oeuvre de ce procede |
GB2300429B (en) * | 1995-05-03 | 1999-01-13 | Courtaulds Eng Ltd | Non-woven fabric manufacture |
CA2247342A1 (fr) * | 1996-03-20 | 1997-09-25 | Owens Corning | Procede de fabrication d'un produit d'isolation |
EP0859076B1 (fr) * | 1997-02-12 | 2002-08-28 | Fleissner GmbH & Co. Maschinenfabrik | Dispositif d'hydro-enchevêtrement de fibres d'une nappe fibreuse |
US5900206A (en) * | 1997-11-24 | 1999-05-04 | Owens Corning Fiberglas Technology, Inc. | Method of making a fibrous pack |
US6010785A (en) * | 1998-02-25 | 2000-01-04 | E. I. Du Pont De Nemours And Company | Cardable blends of dual glass fibers |
DE19827567A1 (de) * | 1998-06-20 | 1999-12-23 | Corovin Gmbh | Verfahren zur Herstellung eines Vlieses aus Fasern |
FR2781818B1 (fr) * | 1998-07-31 | 2000-09-01 | Icbt Perfojet Sa | Procede pour la realisation d'un materiau non-tisse complexe et nouveau type de materiau ainsi obtenu |
DE10006763A1 (de) * | 2000-02-15 | 2001-08-16 | Fleissner Gerold | Vorrichtung zum hydrodynamischen Beaufschlagen der Fasern einer Faserbahn mit einem Fluid |
DE10008746A1 (de) * | 2000-02-24 | 2001-08-30 | Fleissner Maschf Gmbh Co | Verfahren und Vorrichtung zur Herstellung von Verbundvliesstoffen mittels hydrodynamischer Vernadelung |
FR2815647B1 (fr) * | 2000-10-20 | 2003-02-14 | Rieter Perfojet | Installation de production d'une nappe non tissee a difusseur et a separation des filaments par voie electrostatique |
TW508390B (en) * | 2001-05-09 | 2002-11-01 | Ind Tech Res Inst | Feeding device for preneedling nonwoven fabrics |
DE10146907B4 (de) * | 2001-09-24 | 2007-02-22 | Oskar Dilo Maschinenfabrik Kg | Vlieszuführvorrichtung |
FR2838457B1 (fr) * | 2002-04-12 | 2004-08-27 | Rieter Perfojet | Tambour pour installation de production d'une nappe non-tissee, procede de production d'une nappe non-tissee et nappe non-tissee obtenue |
EP1447213A1 (fr) * | 2003-02-11 | 2004-08-18 | Saint-Gobain Vetrotex France S.A. | Structure comprenant un voile de fibres de verre obtenu par voie sèche et un voile de fibres organiques |
-
2002
- 2002-10-11 FR FR0212652A patent/FR2845697B1/fr not_active Expired - Lifetime
-
2003
- 2003-10-07 BR BRPI0315245-6A patent/BR0315245B1/pt active IP Right Grant
- 2003-10-07 AU AU2003283501A patent/AU2003283501A1/en not_active Abandoned
- 2003-10-07 DE DE60333113T patent/DE60333113D1/de not_active Expired - Lifetime
- 2003-10-07 WO PCT/FR2003/002940 patent/WO2004033781A2/fr not_active Application Discontinuation
- 2003-10-07 EP EP03775475A patent/EP1554421B1/fr not_active Expired - Lifetime
- 2003-10-07 AT AT03775475T patent/ATE472002T1/de active
- 2003-10-07 CN CNB2003801012307A patent/CN100457996C/zh not_active Expired - Lifetime
- 2003-10-07 US US10/529,844 patent/US7392575B2/en active Active
-
2005
- 2005-04-05 IL IL167871A patent/IL167871A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB891143A (en) * | 1958-06-26 | 1962-03-14 | Joshua Harold Goldman | Improvements in a method of manufacturing a non-woven fibrous sheet |
FR2304696A1 (fr) * | 1975-03-19 | 1976-10-15 | Krupp Gmbh | Procede et dispositif pour la fabrication d'un voile de fibres enchevetrees presentant approximativement une meme resistance mecanique en direction longitudinale et en direction transversale |
EP0365826A1 (fr) * | 1988-09-27 | 1990-05-02 | Radex-Heraklith Industriebeteiligungs Aktiengesellschaft | Procédé et dispositif pour la production de panneaux à base de fibres minérales |
US5671518A (en) * | 1992-01-24 | 1997-09-30 | Isover Saint-Gobain | Methods for producing a mineral wool needle-felt and a mineral wool product using a thixotropic additive |
US6195845B1 (en) * | 1998-04-17 | 2001-03-06 | Thibeau | Method and an installation for forming a fiber web by the airlay technique |
FR2821866A1 (fr) * | 2001-03-06 | 2002-09-13 | Rieter Perfojet | Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression applique a la nappe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7631406B2 (en) * | 2004-06-23 | 2009-12-15 | Fleissner Gmbh | Device for hydrodynamic intertwining of fibers in a fiber web |
FR2911616A1 (fr) * | 2007-01-19 | 2008-07-25 | Rieter Perfojet Soc Par Action | Installation et procede de production d'une nappe a base de fibres ou de filaments |
WO2008107549A2 (fr) * | 2007-01-19 | 2008-09-12 | Rieter Perfojet | Installation et procede de production d'une nappe a base de fibres ou de filaments |
WO2008107549A3 (fr) * | 2007-01-19 | 2008-12-31 | Rieter Perfojet | Installation et procede de production d'une nappe a base de fibres ou de filaments |
DE102008013817A1 (de) * | 2008-03-12 | 2009-09-17 | Fleissner Gmbh | Verfahren und Vorrichtung zur Vorverfestigung eines Vlieses |
DE102008018976A1 (de) * | 2008-04-14 | 2009-10-15 | Fleissner Gmbh | Verfahren und Vorrichtung zur Herstellung eines Vliesstoffes |
Also Published As
Publication number | Publication date |
---|---|
CN100457996C (zh) | 2009-02-04 |
BR0315245A (pt) | 2005-08-23 |
US20060080816A1 (en) | 2006-04-20 |
DE60333113D1 (de) | 2010-08-05 |
BR0315245B1 (pt) | 2013-05-07 |
CN1774533A (zh) | 2006-05-17 |
FR2845697A1 (fr) | 2004-04-16 |
ATE472002T1 (de) | 2010-07-15 |
EP1554421B1 (fr) | 2010-06-23 |
AU2003283501A1 (en) | 2004-05-04 |
EP1554421A2 (fr) | 2005-07-20 |
WO2004033781A3 (fr) | 2004-05-27 |
FR2845697B1 (fr) | 2005-05-27 |
AU2003283501A8 (en) | 2004-05-04 |
US7392575B2 (en) | 2008-07-01 |
IL167871A (en) | 2010-12-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1554421B1 (fr) | Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee | |
EP1192306B1 (fr) | Procede pour la realisation d'un materiau non tisse, installation pour sa mise en oeuvre et non tisse ainsi obtenu | |
EP0504368B1 (fr) | Nontisse lie hydrauliquement et son procede de fabrication | |
EP1747313B1 (fr) | Nontisse large et ses procede et machine de fabrication. | |
EP1743971B1 (fr) | Non-tissé comprenant une nappe en filaments continus, son procédé de fabrication et son application en tant que chiffon d'essuyage | |
EP1246958A1 (fr) | Procede pour la realisation d'un materiau non tisse et materiau ainsi obtenu | |
EP2776617B1 (fr) | Procédé de fabrication d'un voile continu de fibres comprenant des fibres longues naturelles, installation et voile associés | |
EP0772705B1 (fr) | Installation pour la realisation de nappes non tissees dont la cohesion est obtenue par l'action de jets de fluide | |
EP1556535A1 (fr) | Tissu non-tisse de petite masse volumique et ses procede et installation de production et ses applications | |
JP5787236B2 (ja) | ファイバウェブを圧縮するための装置 | |
WO2006084987A1 (fr) | Carde et machine de production d'un non-tissé | |
EP1682712B1 (fr) | Machine de production de nontisses de plusieurs qualites | |
FR2801064A1 (fr) | Procede et installation d'elaboration d'une nappe fibreuse multidirectionnelle | |
FR2806426A1 (fr) | Installation pour la realisation de nappes non tissees dont la cohesion est obtenue par l'action de jets de fluide | |
EP1408148B2 (fr) | Procédé et installation de production d'un non-tissé ayant de bonnes propriétés de résistance à la traction | |
EP1682713B1 (fr) | Machine de production d'un non-tisse fini | |
EP0678606A1 (fr) | Feutre absorbant | |
FR2718160A1 (fr) | Feutre absorbant pour produits d'Hygiène. | |
FR2721948A1 (fr) | Feutre absorbant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2006080816 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003775475 Country of ref document: EP Ref document number: 10529844 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 167871 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038A12307 Country of ref document: CN Ref document number: 1452/DELNP/2005 Country of ref document: IN |
|
WWP | Wipo information: published in national office |
Ref document number: 2003775475 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10529844 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: JP |