WO1997005315A1 - Method and device for making textile products - Google Patents
Method and device for making textile products Download PDFInfo
- Publication number
- WO1997005315A1 WO1997005315A1 PCT/EP1996/003342 EP9603342W WO9705315A1 WO 1997005315 A1 WO1997005315 A1 WO 1997005315A1 EP 9603342 W EP9603342 W EP 9603342W WO 9705315 A1 WO9705315 A1 WO 9705315A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- corrugation
- looping
- discs
- gauge
- 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
- D04H11/00—Non-woven pile fabrics
- D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
Definitions
- the present invention relates to an improved process for manufacturing textile products directly from fibers and / or filaments.
- the invention also relates to a device for implementing the method. Summary of the state of the art.
- the present invention relates essentially to the production of products obtained by the technique called "verticalization technique” and developed by one of the Applicants.
- the technique described consists in subjecting the fibers and / or the filaments to a "transverse looping" accompanied by a “stretching” and to obtaining an accumulation of the fibers and / or filaments in the form of a "pseudo-yarn" in which the fibers and / or filaments are parallelized.
- each fiber or filament is in principle involved in at least one looping so as to constitute a twist-free yarn obtained by the accumulation of the various fibers and / or elementary filaments well parallelized.
- the majority of the constituent elements of the veil that is to say the individual fibers and / or filaments, must have a orientation angle relative to the direction of advance of the veil which was between 5 and 45 degrees, and more precisely between 15 and 25 degrees; on the other hand, the veil of fibers and / or filaments at the start should have a low weight per unit area, and preferably between 10 and 50 g / m 2 .
- the condition on the orientation that the fibers and / or filaments must have with respect to the direction of advance is a minimum condition of profitability with regard to the lower angle.
- the fibers and / or filaments may no longer be correctly parallelized during the production of the pseudo-wire, which adversely affects the yield of the product.
- this is an angle which constitutes a compromise between theory and practice, that is to say that in the case where fibers and / or filaments have an angle above this limit of 45 degrees, it is estimated that in theory, the process could still be carried out, but it is observed that the fibers and / or filaments would generate forces which increase exponentially with the angle of orientation of the fibers for the device constituted by the interpenetration of the discs pouting with pouting fingers, which would require oversizing of the parts, and in particular of the shaft supporting the pouting discs.
- the Applicant therefore proposed to satisfy the first of the conditions by ensuring an orientation of the fibers relative to the direction of advance by a "transverse pre-stretching" which was essentially achieved by the interpenetration of two sets of discs arranged upstream of the pouting disc / pouting fingers device.
- this sheet is passed through a stretcher provided with rotary means having at their periphery a lining intended to stretch the sheet.
- the longitudinal stretching of the sheet leaving the spreader - lapper is preferably limited to 3. In fact, beyond such a limit, a non-homogeneous product is often obtained in the form of a "moth" product.
- the average angle of orientation of the fibers and / or filaments is between 40 and 75 degrees relative to the longitudinal direction of the drawn product, which will be the direction of advance of the web .
- the re-engagement of the veil can be long and delicate, and even dangerous in the case where there is a manual intervention.
- the devices placed upstream of the pouting discs / pouting fingers device such as the carder and lapper, have a high inertia, which will inevitably cause the productivity to drop below acceptable limits. Aims of the invention.
- the present invention aims to propose a solution to the problem encountered in the state of the art, that is to say a solution which would make it possible to reduce in a particularly significant way the forces produced by preferably using the spreader-lapper device followed by 'a stretcher as described in the document EP-A-0 520 911 for adequately orienting the fibers and / or filaments intended to be used in a verticalization process and device as defined in the document EP-A-0 479,880.
- the present invention also aims to solve the problem of poor engagement of the web between the discs and the sulking fingers.
- the present invention relates to a process for manufacturing a textile product from fibers and / or filaments flowing in the direction of advance in the form of a veil, conventionally comprising a step called the pre-looping step, in which the fibers and / or filaments are individually looped transversely to the direction of advance, possibly accompanied by transverse stretching, and accumulate in the form of a corrugated pseudo-wire in which the fibers and / or filaments are parallelized.
- the method is characterized in that a step is carried out prior to the pre-looping step which is called "waving step".
- the waving step is carried out at using a device constituted by the interpenetration of a first set of pouting discs with a first set of pouting fingers
- the waving step is carried out at using a device constituted by the interpenetration of a second set of discs called inverter discs with a second set of fingers called inverter fingers, this device being arranged upstream of the pre-looping device relative to the direction of advance veil.
- the corrugation device has a gauge which is a multiple of the gauge of the pre-looping device (ie nxj in the case where j is the gauge of the device pre-loop).
- the dimensions and the arrangement of the different elements of the corrugating device must be calculated so that the length of a corrugation obtained within the corrugating device is approximately equal to the number of times that the gauge of the device of pre-looping has been multiplied within the corrugation device.
- a gauge for the corrugation device which is twice the gauge of the pre-loop device.
- the length of a corrugation obtained within the corrugation device is twice the length of a corrugation created within the pre-looping device.
- the forces will be divided, depending on the materials used, by a factor of 5 to 10 compared to the case where no corrugation device is used.
- the pre-looping device is only intended for the formation of the corrugated wire by accumulation of the fibers and / or filaments.
- the diameters of the inverter discs and of the shaft supporting these inverter discs of the ripple device (s) which is (are) placed upstream of the pre-loop device are not limited to considerations of accumulation of fibers and / or filaments in the form of a yarn and may therefore be particularly important.
- FIG. 1 represents a particular embodiment of the device for orienting fibers and / or filaments intended to be used in a process known as verticalization.
- Figures 2a and 2b describe a schematic profile view of the verticalization device according to two embodiments of the present invention.
- FIGS. 3a, 3b and 3c represent several front views for different stages of the advancement of the fibers and / or filaments through the waving and pre-looping devices.
- Figures 4, 5 and 6 show the looping forces for a given web according to the gauge (fig. 4), according to the weight of the web (fig. 5) and according to the angle of orientation of the fibers (fig. 6).
- FIG. 7 represents a detail view showing the toothing of the various inverter and looper discs.
- FIG. 8 represents a preferred embodiment of discs used in the undulation step according to a sectional view, as well as the toothing which is present there.
- FIG. 9 represents a preferred embodiment in which the link appears between the stretching device as described in document EP-A-0 520 911 and the device according to the present invention. Description of a preferred embodiment of the present invention.
- FIG. 1 represents a schematic view of a device which could be called a fiber and / or filament orientation device and which has been the subject of a detailed description in document EP-A-0 520 911.
- the fibers and / or filaments undergo in 1 and 2 a step of mixing and working the materials, so as to constitute a first veil 00 after passing through a card 3, which has a weight of about 20 g / m 2 for a width of 2.5 m.
- the feed speed is approximately 100 m / minute.
- the web is treated according to the technique described in European patent EP-A-0 520 911, that is to say it is introduced into a spreader-lapper 5 so as to fold successively the product several times. veil of fibers and / or filaments from the card 3.
- the folded veil which is also called “ply” 0 is introduced into a stretcher 7 as described in the document EP-A-0 520 911.
- This device is provided with rotary means having at their periphery a lining comprising spikes that one makes penetrate in the middle of the tablecloth 0.
- the length of the spreader-lapper device be greater than this value, and preferably be l 'around 5 m.
- the degree of stretching of the stretching device is also adjusted so that the fibers and / or filaments in the stretched web 10 are mainly distributed in two directions that are substantially symmetrical with respect to the longitudinal direction of the stretched product and which will be the direction veil advance 10.
- Le is the entry width of the web 00
- Np is the number of folds made by the lapper
- Ls is the width of the folded sheet 0
- al is the half-angle of covering with respect to the direction of advance of the web 00
- E is the rate of stretching
- Le2 is the width of the web 10 at the exit of the stretcher
- a2 is the half-angle after stretching with respect to the direction of advance of the web 00 which is orthogonal to the direction of advance of the web 10, we easily obtain:
- the stretching rate is preferably limited to 3 in order to avoid poor cohesion of the web (moth product).
- FIGS. 2a and 2b show the verticalization device according to two embodiments of the present invention.
- this device consists in a conventional manner of a first set of sulking discs 91. disposed on a transverse shaft 93 and between which are placed sulking fingers 95.
- a second device called a corrugation device is arranged upstream of the pre-looping device.
- This ripple device consists of a set of inverter discs 101 arranged on a shaft 103 and between which are placed inverter fingers 105.
- the undulating fingers 101 and loosening 91 are arranged opposite to the respective inverter and loosening discs. This allows engagement in the form of an "S" of the web between the inverter and sulking discs.
- the inverter fingers 101 and looper 91 are arranged on the same side relative to the inverter and looper discs, thus promoting the engagement of a veil in the form of a "V", for example .
- the gauge according to which the inverter disks of the corrugation device appear is a multiple of the gauge of the pre-looping device.
- Figures 2a and 2b show two particularly simple embodiments, where for a gauge j of the pre-looping device, there is a gauge 2j of the corrugation device.
- Figures 3 show several front views of the different elements constituting the two devices pre-looping and waving in which the disks and the sulky fingers and inverters have been shown schematically.
- FIG. 3a represents the behavior of the fibers and / or filaments within the device called a corrugation device and which is located most upstream relative to the direction of advance of the web 10. It can be observed that the fibers and / or filaments which meet this undulation device will be individually subjected to the creation of an undulation having a period which is of course worth the gauge of the undulation device.
- the gauge of the corrugation device is simply double that of the pre-looping device where the formation of the wire itself takes place.
- FIG. 3b represents the step of transferring the fibers and / or filaments between the waving device and the pre-looping device.
- the sulking discs 91 of the pre-looping device are arranged exactly in the extension of the fingers 105 of the corrugation device but also in the extension of the discs 101 of the corrugation device. Consequently, it is observed that there are twice as many discs in the pre-loop device as in the corrugator.
- the behavior of the fibers and / or filaments is represented within the device called the pre-looping device, which is located furthest downstream and which allows the production of the corrugated pseudo-yarn obtained by the accumulation of fibers and / or filaments.
- the pre-looping device has a gauge twice less than that of the corrugation device, it is important to check that the length of the corrugation obtained for the fibers and / or filaments in the waving device is equal to or close to double the length of the waving of the fibers and / or filaments created by the pre-looping device in order to constitute the pseudo-thread.
- Figures 4, 5 and 6 show the looping forces, either as a function of the gauge, or as a function of the weight of the web, or as a function of the orientation angle of the fibers, the other parameters being fixed in each case. .
- FIG. 4 represents the corrugation forces as a function of the gauge in the case of a constant veil weight chosen at 20 g / m 2 , and in which the fibers have an average angle of orientation of 45 ° in relation to the direction of advance.
- PA polyamide web
- PP polypropylene web
- FIG. 5 represents the corrugation forces as a function of the weight of the veil P (g / m 2 ) for a fixed gauge chosen at 1/8 inch and in which the fibers have an average angle of orientation of 45 ° relative to the direction of advance, again in the case of a polypropylene (PP) veil and a polyamide (PA) veil.
- PP polypropylene
- PA polyamide
- FIG. 6 represents the corrugation forces as a function of the orientation angle ⁇ of the fibers for a web having a weight of 20 g / m 2 and where the gauge is 1/8 inch, this for two materials, one polyamide (PA) veil and polypropylene (PP) veil.
- PA polyamide
- PP polypropylene
- Another particularly important aspect of the present invention resides in the resolution of the problem of poor engagement of the web in the verticalization device.
- the waving device is no longer subject to the same conditions as regards the toothing as the pre-looping device which must allow the accumulation of fibers and / or filaments in the form of a wire.
- FIG. 7 shows the teeth of the corrugation and pre-looping devices. It is observed that the toothing of the corrugation device is opposite to that of the pre-looping device, and will favor the engagement of the veil.
- inverter discs that can be used in the corrugation device and which have a toothing which allows easy engagement and training of the web in the verticalization device.
- the inverter disc consists essentially of two parts: the first part is a chamfered disc 201 perfectly polished and has optionally undergone a surface treatment in order to lower the coefficient of friction with the fiber.
- This disc constitutes the bottom of the teeth and allows easy lateral sliding of the fibers and / or filaments
- the second part of the disc consists of a cut disc 203 which will for example be welded to the first, and which makes it possible to constitute the point. of the teeth allowing the engagement and the training of the veil.
- Figure 9 there is shown the stretching device as described in document EP-A-0 520 911, which consists of a series of successive cylinders, and in which the last cylinder belonging to this device stretch 7 is an extension of the first disc inverters of the corrugation device 9, so that one can drive directly at the outlet of the stretching device, the web consisting of fibers and / or filaments.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96927060A EP0842313B1 (en) | 1995-08-01 | 1996-07-26 | Method and device for making textile products |
JP9507249A JP2000501789A (en) | 1995-08-01 | 1996-07-26 | Apparatus and method for manufacturing textile articles |
SI9630189T SI0842313T1 (en) | 1995-08-01 | 1996-07-26 | Method and device for making textile products |
DE69606645T DE69606645T2 (en) | 1995-08-01 | 1996-07-26 | METHOD AND DEVICE FOR PRODUCING TEXTILE MATERIAL |
MXPA98000840A MXPA98000840A (en) | 1995-08-01 | 1996-07-26 | Method and device for making textile products. |
DK96927060T DK0842313T3 (en) | 1995-08-01 | 1996-07-26 | Method and apparatus for the manufacture of textile products |
AU67023/96A AU702349B2 (en) | 1995-08-01 | 1996-07-26 | Method and device for the manufacture of textile products |
BR9610036-2A BR9610036A (en) | 1995-08-01 | 1996-07-26 | Process and device for the manufacture of a textile product |
US09/000,251 US6012205A (en) | 1995-08-01 | 1996-07-26 | Method and device for making textile products |
AT96927060T ATE189712T1 (en) | 1995-08-01 | 1996-07-26 | METHOD AND DEVICE FOR PRODUCING TEXTILE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95870093 | 1995-08-01 | ||
EP95870093.2 | 1995-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997005315A1 true WO1997005315A1 (en) | 1997-02-13 |
Family
ID=8222150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/003342 WO1997005315A1 (en) | 1995-08-01 | 1996-07-26 | Method and device for making textile products |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0842313B1 (en) |
JP (1) | JP2000501789A (en) |
KR (1) | KR19990036035A (en) |
CN (1) | CN1191584A (en) |
AT (1) | ATE189712T1 (en) |
AU (1) | AU702349B2 (en) |
BR (1) | BR9610036A (en) |
CA (1) | CA2228725A1 (en) |
CZ (1) | CZ28298A3 (en) |
DE (1) | DE69606645T2 (en) |
DK (1) | DK0842313T3 (en) |
ES (1) | ES2143215T3 (en) |
MX (1) | MXPA98000840A (en) |
SI (1) | SI0842313T1 (en) |
TR (1) | TR199800130T1 (en) |
WO (1) | WO1997005315A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5867880A (en) * | 1994-09-30 | 1999-02-09 | Sommer S.A. | Method and device for producing textile products from fibers and/or filaments and products obtained |
WO2000060155A1 (en) * | 1999-04-06 | 2000-10-12 | Sai Automotive Sommer Industrie | Device and method for making textile products from fibres and/or filaments |
WO2001004404A1 (en) * | 1999-07-12 | 2001-01-18 | Tarkett Sommer S.A. | Method and device for orienting individual fibres and/or filaments present in a web |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991000382A1 (en) * | 1989-06-30 | 1991-01-10 | Sommer S.A. | Method and device for manufacturing textile products from fibres and/or filaments, products obtained |
EP0520911A1 (en) * | 1991-06-28 | 1992-12-30 | ETABLISSEMENTS ASSELIN (Société Anonyme) | Method of producing a non-woven semi-finished product, and product obtained thereby |
-
1996
- 1996-07-26 DE DE69606645T patent/DE69606645T2/en not_active Expired - Fee Related
- 1996-07-26 CA CA002228725A patent/CA2228725A1/en not_active Abandoned
- 1996-07-26 JP JP9507249A patent/JP2000501789A/en active Pending
- 1996-07-26 ES ES96927060T patent/ES2143215T3/en not_active Expired - Lifetime
- 1996-07-26 SI SI9630189T patent/SI0842313T1/en unknown
- 1996-07-26 AU AU67023/96A patent/AU702349B2/en not_active Ceased
- 1996-07-26 CZ CZ98282A patent/CZ28298A3/en unknown
- 1996-07-26 EP EP96927060A patent/EP0842313B1/en not_active Expired - Lifetime
- 1996-07-26 KR KR1019980700700A patent/KR19990036035A/en active IP Right Grant
- 1996-07-26 BR BR9610036-2A patent/BR9610036A/en not_active Application Discontinuation
- 1996-07-26 AT AT96927060T patent/ATE189712T1/en not_active IP Right Cessation
- 1996-07-26 TR TR1998/00130T patent/TR199800130T1/en unknown
- 1996-07-26 DK DK96927060T patent/DK0842313T3/en active
- 1996-07-26 WO PCT/EP1996/003342 patent/WO1997005315A1/en active IP Right Grant
- 1996-07-26 CN CN96195789A patent/CN1191584A/en active Pending
- 1996-07-26 MX MXPA98000840A patent/MXPA98000840A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991000382A1 (en) * | 1989-06-30 | 1991-01-10 | Sommer S.A. | Method and device for manufacturing textile products from fibres and/or filaments, products obtained |
EP0520911A1 (en) * | 1991-06-28 | 1992-12-30 | ETABLISSEMENTS ASSELIN (Société Anonyme) | Method of producing a non-woven semi-finished product, and product obtained thereby |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5867880A (en) * | 1994-09-30 | 1999-02-09 | Sommer S.A. | Method and device for producing textile products from fibers and/or filaments and products obtained |
WO2000060155A1 (en) * | 1999-04-06 | 2000-10-12 | Sai Automotive Sommer Industrie | Device and method for making textile products from fibres and/or filaments |
US6523234B1 (en) | 1999-04-06 | 2003-02-25 | Sai Automotive Sommer Industrie | Device and method for making textile products from fibers and/or filaments |
WO2001004404A1 (en) * | 1999-07-12 | 2001-01-18 | Tarkett Sommer S.A. | Method and device for orienting individual fibres and/or filaments present in a web |
US6519820B1 (en) | 1999-07-12 | 2003-02-18 | Tarkett Sommer S.A. | Method and device for orienting individual fibres and/or filaments present in a web |
Also Published As
Publication number | Publication date |
---|---|
JP2000501789A (en) | 2000-02-15 |
CA2228725A1 (en) | 1997-02-13 |
BR9610036A (en) | 1999-12-21 |
KR19990036035A (en) | 1999-05-25 |
SI0842313T1 (en) | 2000-10-31 |
AU702349B2 (en) | 1999-02-18 |
MXPA98000840A (en) | 2004-01-28 |
DE69606645T2 (en) | 2000-07-13 |
EP0842313B1 (en) | 2000-02-09 |
DE69606645D1 (en) | 2000-03-16 |
DK0842313T3 (en) | 2000-07-24 |
TR199800130T1 (en) | 1998-05-21 |
CZ28298A3 (en) | 1998-07-15 |
ES2143215T3 (en) | 2000-05-01 |
ATE189712T1 (en) | 2000-02-15 |
AU6702396A (en) | 1997-02-26 |
EP0842313A1 (en) | 1998-05-20 |
CN1191584A (en) | 1998-08-26 |
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