WO2002097182A1 - Installation de production d'une nappe non tissee a poids tres regulier - Google Patents
Installation de production d'une nappe non tissee a poids tres regulier Download PDFInfo
- Publication number
- WO2002097182A1 WO2002097182A1 PCT/FR2002/001646 FR0201646W WO02097182A1 WO 2002097182 A1 WO2002097182 A1 WO 2002097182A1 FR 0201646 W FR0201646 W FR 0201646W WO 02097182 A1 WO02097182 A1 WO 02097182A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diffuser
- lower edge
- upper edge
- edge
- filaments
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- 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
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
-
- 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
-
- 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
- D04H3/16—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 filaments produced in association with filament formation, e.g. immediately following extrusion
Definitions
- the present invention relates to installations for producing nonwoven webs.
- a generator of a curtain of filaments in particular of plastic filaments, a device for attenuating the stretch of the filaments of the curtain followed, at a distance from the lower edge of the stretching attenuator device, a diffuser and a conveyor for receiving the filaments leaving the diffuser.
- the generator of a curtain of filaments most often comprises an extruder intended to extrude a molten organic polymer in a die pierced with multiple holes so as to form a curtain of filaments and below the die a device for cooling the curtain filaments.
- the curtain filament stretching device generally has opposite side walls and opposite end walls defining an oblong inlet slot for receiving the filaments as well as an oblong outlet slot through which the filaments exit.
- a slit-shaped passage extends between the inlet and the outlet and the filaments pass there by being stretched by the introduction into the slit-shaped passage of a stream of air which is sufficient to stretch the filaments .
- the diffuser which is intended to widen the curtain which enters it. As the diffuser diverges or is flared towards the low, the curtain which passes there widens as it falls.
- the web which forms on the receiving conveyor below the diffuser should be more homogeneous.
- the invention overcomes this drawback by an installation of the above type in which the sheet formed is more homogeneous.
- the distance between the lower edge of the stretch slit attenuator and the upper edge of the diffuser is constant to within ⁇ 7% and preferably to within ⁇ 5%.
- edges in question of oblong slot commonly have lengths of their long side exceeding 1.50 m which take a deflection or deform under the effect of the very weight of the attenuating device and the diffuser.
- means are therefore provided for maintaining the horizontality of the lower edge of the attenuating device with stretching slot and also, preferably, of the upper edge of the diffuser.
- the means are such that they allow the gap between the lower edge of the stretching attenuator device and the upper edge of the diffuser to be clear, but that they prevent these edges from taking a deflection or from bending.
- These means can be constituted by the fact that the attenuating device and the diffuser are, at least on the edges concerned, made of a very rigid material.
- the means comprise bridges regularly distributed around the periphery of the lower edge and of the upper edge and the branches of which are fixed to the attenuating device at points closer to its lower edge than to its edge. upper and to the diffuser at points closer to its upper edge than to its lower edge.
- These bridges or other means for maintaining the horizontality of the edges which can be provided every 200 to 300 mm ensure the horizontality of the edges and therefore the consistency of their mutual distance, without however requiring the use of very rigid materials and therefore expensive.
- the regularity of the ply is also improved if at least one slot is provided along the diffuser extending around the entire periphery of the diffuser and means for maintaining the horizontality of the lower and upper edges of this slot, these means being able to again be bridges like those used to maintain a constant value the interval between the attenuating device with stretching slot and the diffuser.
- Figure 1 is a schematic perspective view of an installation according to the invention.
- Figure 2 is a sectional view of the diffuser.
- FIG. 3 is a partial perspective view showing a trigger guard fixed to the attenuating device with stretching slot and to the diffuser and FIGS. 4 and 5 are graphs illustrating the invention.
- the installation comprises an extruder 1 supplied with synthetic polymer and a die 2 making it possible to form a curtain of filaments 3.
- the die consists of a plate comprising a multitude of holes having a diameter which depends on the extruded filaments. These holes are distributed over a plurality of parallel rows. There are for example 18 rows on a die width of 140 mm.
- a cooling assembly 4 making it possible to lower the temperature of the filaments and composed of a plurality of successive zones 4a, 4b, 4c which allows the filament curtain 3 to be subjected to air flows whose speed and the temperature can be adjusted.
- the length of this cooling zone can be of the order of 1200 mm.
- a conventional slit stretching device 5 F Downstream and therefore below this cooling assembly 4 is arranged a conventional slit stretching device 5 F. It is composed of two walls defining between them a passage in the form of a slot F, inside of which air is injected under pressure, for example under 0.5 bar. This slit stretching device allows the curtain of filaments to be drawn in and entrained by air streams at high speeds, which stretches the filaments.
- a diffuser 6 shown in particular in FIG. 2 has two walls 14, 15 forming an angle of 5 ° between them and each provided with three openings 16 extending over full length.
- the diffuser 6 is located 10 mm from the bottom of the stretching device 5 and the width d of the stretching slot is just less than the width D of the top of the passage defined by the diffuser 6.
- the electrostatic device 17 In the wall 15 of the diffuser 6 is mounted the electrostatic device 17 of the same type as the device 10, 11, 13 shown in FIG. 3.
- FIG. 4 is a graph representing the variation of the distance between the edge 20 and the edge 21, while FIG. 5 corresponds to the variation of the weight of the web deposited on the conveyor in g / mm 2 as a function of these distances .
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02732873A EP1404912A1 (fr) | 2001-05-31 | 2002-05-16 | Installation de production d'une nappe non tissee a poids tres regulier |
US10/478,561 US6974316B2 (en) | 2001-05-31 | 2002-05-16 | Installation for producing a nonwoven web with very uniform weight |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0107138A FR2825381B1 (fr) | 2001-05-31 | 2001-05-31 | Installation de production d'une nappe non tissee a poids tres regulier |
FR01/07138 | 2001-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002097182A1 true WO2002097182A1 (fr) | 2002-12-05 |
Family
ID=8863815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/001646 WO2002097182A1 (fr) | 2001-05-31 | 2002-05-16 | Installation de production d'une nappe non tissee a poids tres regulier |
Country Status (4)
Country | Link |
---|---|
US (1) | US6974316B2 (fr) |
EP (1) | EP1404912A1 (fr) |
FR (1) | FR2825381B1 (fr) |
WO (1) | WO2002097182A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005045116A1 (fr) | 2003-10-27 | 2005-05-19 | Kimberly-Clark Worldwide, Inc. | Procede et appareil destines a la fabrication de materiaux non tisses |
FR2874936A1 (fr) * | 2004-09-09 | 2006-03-10 | Rieter Perfojet Sa | Tour spunbond et machine de production d'un complexe |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8246898B2 (en) * | 2007-03-19 | 2012-08-21 | Conrad John H | Method and apparatus for enhanced fiber bundle dispersion with a divergent fiber draw unit |
DE102008029550A1 (de) * | 2008-06-21 | 2009-12-24 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum Abziehen von Filamenten |
EP2584076B1 (fr) * | 2011-10-22 | 2017-01-11 | Oerlikon Textile GmbH & Co. KG | Dispositif et procédé de guidage et de dépôt de filaments synthétiques dans une étoffe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1635596A1 (de) * | 1967-04-11 | 1971-03-25 | Du Pont | Verfahren zur Foerdern von Faeden und Vorrichtung zu seiner Durchfuehrung |
US3766606A (en) * | 1972-04-19 | 1973-10-23 | Du Pont | Apparatus for forwarding tow |
US4820142A (en) * | 1987-04-25 | 1989-04-11 | Reifenhauser Gmbh & Co. Maschinenfabrik | Apparatus for making a spun-filament fleece |
US5211903A (en) * | 1991-01-30 | 1993-05-18 | Silver-Plastics Gmbh & Co. Kg | Process and apparatus for producing a spun-fiber web from synthetic polymer |
FR2792656A1 (fr) * | 1999-04-23 | 2000-10-27 | Icbt Perfojet Sa | Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3807420A1 (de) * | 1988-03-07 | 1989-09-21 | Gruenzweig & Hartmann | Einrichtung zur erzeugung von fasern, insbesondere mineralfasern, aus einer schmelze |
DE4312419C2 (de) * | 1993-04-16 | 1996-02-22 | Reifenhaeuser Masch | Anlage für die Herstellung einer Spinnvliesbahn aus aerodynamischen verstreckten Filamenten aus Kunststoff |
-
2001
- 2001-05-31 FR FR0107138A patent/FR2825381B1/fr not_active Expired - Lifetime
-
2002
- 2002-05-16 US US10/478,561 patent/US6974316B2/en not_active Expired - Lifetime
- 2002-05-16 EP EP02732873A patent/EP1404912A1/fr not_active Withdrawn
- 2002-05-16 WO PCT/FR2002/001646 patent/WO2002097182A1/fr not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1635596A1 (de) * | 1967-04-11 | 1971-03-25 | Du Pont | Verfahren zur Foerdern von Faeden und Vorrichtung zu seiner Durchfuehrung |
US3766606A (en) * | 1972-04-19 | 1973-10-23 | Du Pont | Apparatus for forwarding tow |
US4820142A (en) * | 1987-04-25 | 1989-04-11 | Reifenhauser Gmbh & Co. Maschinenfabrik | Apparatus for making a spun-filament fleece |
US5211903A (en) * | 1991-01-30 | 1993-05-18 | Silver-Plastics Gmbh & Co. Kg | Process and apparatus for producing a spun-fiber web from synthetic polymer |
FR2792656A1 (fr) * | 1999-04-23 | 2000-10-27 | Icbt Perfojet Sa | Dispositif permettant d'assurer l'ouverture et la repartition d'un faisceau de filaments lors de la realisation d'une nappe textile non tissee |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005045116A1 (fr) | 2003-10-27 | 2005-05-19 | Kimberly-Clark Worldwide, Inc. | Procede et appareil destines a la fabrication de materiaux non tisses |
EP1916324A2 (fr) | 2003-10-27 | 2008-04-30 | Kimberly-Clark Worldwide, Inc. | Procédé et appareil pour la production de toiles non tissées |
EP1916324A3 (fr) * | 2003-10-27 | 2008-05-14 | Kimberly-Clark Worldwide, Inc. | Procédé et appareil pour la production de toiles non tissées |
US8333918B2 (en) | 2003-10-27 | 2012-12-18 | Kimberly-Clark Worldwide, Inc. | Method for the production of nonwoven web materials |
FR2874936A1 (fr) * | 2004-09-09 | 2006-03-10 | Rieter Perfojet Sa | Tour spunbond et machine de production d'un complexe |
Also Published As
Publication number | Publication date |
---|---|
FR2825381B1 (fr) | 2003-11-14 |
US20040219242A1 (en) | 2004-11-04 |
US6974316B2 (en) | 2005-12-13 |
EP1404912A1 (fr) | 2004-04-07 |
FR2825381A1 (fr) | 2002-12-06 |
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