EP1606444A1 - Device and method for spinning and depositing a synthetic beer for producing nonwovens - Google Patents
Device and method for spinning and depositing a synthetic beer for producing nonwovensInfo
- Publication number
- EP1606444A1 EP1606444A1 EP04719381A EP04719381A EP1606444A1 EP 1606444 A1 EP1606444 A1 EP 1606444A1 EP 04719381 A EP04719381 A EP 04719381A EP 04719381 A EP04719381 A EP 04719381A EP 1606444 A1 EP1606444 A1 EP 1606444A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- guide rollers
- collecting gap
- belts
- collecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- D04H3/02—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
- 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
- D04H1/736—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 characterised by the apparatus for arranging 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
- 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
- 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
Definitions
- the invention relates to a device for spinning and depositing a synthetic thread sheet for nonwoven production according to the preamble of claim 1 and a method for spinning and depositing a synthetic thread sheet for nonwoven production according to the preamble of claim 15.
- nonwoven fabric In the manufacture of a nonwoven fabric, freshly spun continuous filaments are laid down to form a textile fabric, the so-called nonwoven.
- the deposit takes place on a screen belt or a screen drum, which interacts with a suction device, on the one hand to obtain an even thread deposit and thus a uniform formation of fleece and on the other hand to cool the melt-spun fiber strands.
- the fleece created by the thread deposit is usually flat and, due to the one-sided contact with the sieve deposit, the surface properties of the top and bottom are different.
- a device and a method are known from DE 42 04 366 AI, in which, after spinning and before being deposited on the screen holder, the thread sheet is first passed through a collecting gap formed between two guide rollers.
- the guide rollers are essentially used to spread the thread sheet.
- the fleece is formed on the screen tray.
- the distribution of the individual fiber strands within the fleece can hereby be influenced.
- the shape of the fleece is still determined by the one-sided contact with the screen tray.
- one side of the fleece is always smooth and the opposite side is designed in a more or less structured wave form. Accordingly, it is an object of the invention to provide a device and a method of the type mentioned at the outset with which a homogeneous, uniformly shaped nonwoven fabric can be produced.
- Another object of the invention is to provide an apparatus and a method with which or with which the most voluminous fiber nonwovens can be produced.
- the invention turns away from the principle in which the production of the nonwoven essentially takes place by placing it on the horizontally oriented screen holder.
- the invention already uses the collection of the thread sheet after pulling it off from a spinning device into a fleece-oriented deposit.
- the thread sheet is guided through a collecting gap which is formed by two guide belts arranged opposite one another.
- the guide belts are driven in the course of the thread, the guide speed of the guide belts being lower than the take-off speed of the thread sheet.
- the placement of the thread sheet in the collecting gap can be influenced by the guide speed of the guide belts in such a way that, for example, higher placement densities can be generated.
- the invention is characterized in particular in that the nonwoven fabric can be shaped from two sides.
- the invention has the advantage that a spatial storage structure of the fiber strands is generated in the nonwoven fabric, which is particularly suitable for the production of voluminous nonwoven fabrics.
- the thickness of the nonwoven fabric can be determined in a simple manner by the width of the collecting gap.
- the guide rollers are designed with a gas-permeable guide jacket and with a suction device arranged inside the guide rollers.
- the suction device draws a segmental peripheral section of the guide jacket in the area of the inlet to the collecting gap. This results in an even distribution of the fiber strands on the contact surfaces of the guide rollers.
- the guide rollers and the guide belts are preferably driven at the same guide speed and form a common collecting gap.
- the suction device is designed to be adjustable in the circumferential direction of the guide rollers, the beginning of the shaping of the nonwoven fabric can be adjusted to a desired range.
- a sufficient and intensive suction flow is achieved in that the guide sleeves of the guide rollers have an open surface of> 75%, preferably> 90%.
- the orientation of the thread sheet and the shape of the nonwoven fabric to be formed can also advantageously be influenced in such a way that the suction of the contact surfaces at the inlet of the collecting gap takes place with different intensities.
- the suction devices are designed to be controllable independently of one another.
- a further possibility for influencing the deposit of the thread sheet by the suction flow is given in that the guide jacket has radially aligned webs underneath an outer contact surface which influences the course of the flow of the sucked-in air flow and thus the collection and depositing of the thread sheet. Due to the possibility of changing the two guide rollers at a horizontal distance from one another, a desired thickness or a desired volume of the nonwoven fabric can be set.
- the spinning length can also be set to a desired optimum by changing the positions of the guide rollers in the thread running direction.
- the guide rollers and the guide belts can be formed and driven by separate means.
- the guide belts are designed to be gas-permeable and, as endless belts, each wrap around one of the guide rollers and a deflecting roller interacting with the relevant guide roller. This ensures a continuous collection, storage and transport of the nonwoven fabric to a screen tray. In particular, good and stable shaping of the nonwoven fabric can be achieved from both sides until the screen is reached.
- the shape can also be advantageously supported in that the guide belts are arranged in relation to one another in such a way that the collecting gap has a larger width at the inlet than at the outlet.
- the thickness of the nonwoven is thus determined by the width of the collecting gap at the outlet.
- the development of the invention is particularly preferred, in which the screen tray has a suction device in the area of the outlet of the guide tapes, so that a transition zone of the screen tray can be vacuumed.
- the screen tray is preferably formed by a running collecting belt, which leads to the removal of the nonwoven fabric for further treatment and further processing. Further advantages of the method according to the invention and the device according to the invention are described in more detail below on the basis of a few exemplary embodiments with reference to the attached figures.
- Fig. 1 shows schematically a view of a first embodiment of the device according to the invention
- Fig. 2 shows schematically a cross-sectional view of the embodiment of Fig. 1 without spinning device and take-off device
- Fig. 3 shows schematically a cross-sectional view of another embodiment of the device according to the invention without spinning device and take-off device
- FIG. 4 shows a schematic cross-sectional view of a further exemplary embodiment of the device according to the invention without a spinning device and take-off device
- FIG. 1 and FIG. 2 schematically show a first exemplary embodiment of the device according to the invention for carrying out the method according to the invention.
- Fig. 1 shows a schematic view of the complete device.
- a cross-sectional view is shown schematically in FIG. 2, the illustration of the spinning device and the take-off device being omitted.
- the device according to the invention has a spinning device 1, through which a thread sheet 3 consisting of a large number of individual
- the spinning device 1 can have both means for melting plastic granules and means for guiding a polymer melt, means for conveying a polymer melt, means for extruding a polymer melt and means for cooling the freshly extruded fiber strands.
- Such spinning devices are generally known, so that a detailed illustration and description is omitted.
- a take-off device 2 is provided below the spinning device 1, by means of which the sheet 3 is drawn off from the spinning device 1 and accelerated.
- Compressed air-operated suction nozzles or suction channels are preferably used as extraction devices 2. Basically, however, all known trigger systems can be used to remove and accelerate a family of threads.
- two parallel guide rollers 6.1 and 6.2 are arranged in such a way that a collecting gap 7 is formed between the guide rollers 6.1 and 6.2.
- the guide rollers 6.1 and 6.2 thus represent an inlet 20 of the collecting gap 7.
- the guide rollers 6.1 and 6.2 are each wrapped by a guide belt 8.1 and 8.2.
- the guide belts 8.1 and 8.2 are endless and are guided in the extension of the collecting gap 7 up to a deflecting roller 9.1 and 9.2.
- the guide belt 8.1 is thus guided as endless belts around the guide roller 6.1 and the deflection roller 9.1 and the guide belt 8.2 around the guide roller 6.2 and the deflection roller 9.2.
- the guide belts 8.1 and 8.2 extend essentially over the entire width of the guide rollers 6.1 and 6.2.
- the deflecting rollers 9.1 and 9.2 form an outlet 21 of the collecting gap 7.
- the outlet 21 of the collecting gap 7 is arranged at a short distance from a horizontally oriented sieve tray 4.
- the screen tray 4 is designed as a collecting belt 16 which is guided or driven via a belt roll 17.
- the collecting belt 16 has a width which corresponds at least to the width of the guide belts 8.1 and 8.2.
- a suction device 10 is assigned to the collecting belt 16 in the area of the outlet 21, through which a suction flow that penetrates the collecting belt 16 can be generated in a transition zone for receiving a nonwoven fabric.
- a family of threads 3 is spun by means of the tensioning device 1.
- the thread sheet 3 is drawn off by the take-off device 2 and is guided to the guide rollers 6.1 and 6.2 in an accelerated manner.
- the guide rollers 6.1 and 6.2 each have a suction device 14.1 and 14.2 inside.
- the suction devices 14.1 and 14.2 each have a suction opening 15 which faces the inlet 20 of the collecting gap 7.
- the sucking opening 15 of the suction device 14.1 or the suction device 14.2 is designed in such a way that the guide jacket 11 of the guide roller 6.1 or 6.2 in question is sucked in a seg-shaped peripheral section.
- the segment-shaped peripheral section is held in the area of the inlet 20 to the collecting gap 7.
- the sucking openings 15 can be adjusted by twisting within the guide rollers 6.1 and 6.2 in order to change the peripheral section to be vacuumed.
- Each of the guide rollers 6.1 and 6.2 has an identical structure of the guide jacket 11.
- the guide jacket 11 consists of an outer contact surface 12 which is formed by the respective guide belt 8.1 or 8.2. Below the contact surface 12, the guide jacket 11 has a plurality of webs 13 that are radially oriented at a distance from one another.
- the webs 13 can be straight, curved or inclined, so that an additional influence on the suction flow is possible by rotating the guide jacket 11.
- the guide bands 8.1 and 8.2 are designed to be gas-permeable, the open area of the guide bands 8.1 and 8.2 being in the range from 75% to 98%.
- the guide rollers 6.1 and 6.2 and the deflection rollers 9.1 and 9.2 are movably held in a frame, not shown here. Both the guide rollers 6.1 and 6.2 and the deflecting rollers 9.1 and 9.2 can be used here
- Vertical adjustment of the guide rollers 6.1 and 6.2 and the deflection rollers 9.1 and 9.2 is also possible, in particular to change the distance between the take-off device 2 and the collecting gap 7.
- a belt tensioning device can advantageously act between the guide rollers 6.1 and 6.2 and the respective deflecting rollers 9.1 and 9.2, by means of which a desired tensioning of the guide belts 8.1 and 8.2 remains guaranteed.
- a nonwoven fabric 5 is formed.
- the guide belts 8.1 and 8.2 are driven by the guide rollers 6.1 and 6.2 in the thread running direction at a predetermined guide speed.
- the guide speed of the guide belts 8.1 and 8.2 is preferably of identical design and essentially lower than the take-off speed wedge generated by the take-off device 2.
- the density between the nonwoven fabric 5 can essentially be defined by the relationship between the take-off speed and the guide speed.
- the fiber strands of the thread sheet 3 collected and deposited in the inlet 20 in the collecting gap 7 become a nonwoven fabric formed on two sides 5 led.
- the two-sided suction of the contact surfaces 12 results in a spatial storage structure of the fibers within the nonwoven fabric 5, so that a voluminous nonwoven fabric 5 is produced.
- the volume of the nonwoven fabric 5 can essentially be adjusted by the width of the collecting gap 7.
- the fiber fleece 5 produced in this way is guided via the guide belts 8.1 and 8.2 to the outlet 21 and placed on the collecting belt 16.
- the suction device 10 assigned to the collecting belt 16 ensures that the nonwoven fabric 5 is deposited on the collecting belt 16 in a controlled and uniform manner.
- the belt speed of the collecting belt 16 is in essentially the same as the guide speed of the guide belts 8.1 and 8.2, so that no further compression or loosening of the nonwoven fabric occurs.
- it is also possible to achieve special effects in the nonwoven fabric by different settings of the belt speed of the collecting belt 16 in relation to the guide speeds of the guide belts 8.1 and 8.2.
- the nonwoven fabric 5 is transported away by the collecting belt 16 for further processing and further treatment.
- the device according to the invention and the method according to the invention are therefore particularly suitable for producing voluminous non-woven fabrics formed uniformly from two sides.
- All common types of polymer such as polyester, polyamide, polypropylene or modifications and mixtures of such polymers can be used here.
- a nonwoven fabric with a predetermined density, uniformly shaped surfaces and three-dimensional orientation can be produced.
- FIG. 3 shows a further exemplary embodiment of the device according to the invention schematically in a cross-sectional view.
- the illustration of the spinning device of the take-off device has been omitted.
- the formation of the screen tray 4 is identical to the previous embodiment.
- the exemplary embodiment has two guide rollers 6.1 and 6.2, which load the inlet 20 of a collecting gap 7.
- the guide rollers 6.1 and 6.2 are followed by two guide belts 8.1 and 8.2, each of which is guided by a drive roller 19.1 and 19.2 and a deflection roller 9.1 and 9.2.
- the collecting gap 7 is formed between the guide rollers 6.1 and 6.2 and between the guide belts 8.1 and 8.2.
- the transition area of the collecting gap 7 between the Guide rollers 6.1 and 6.2 and the guide belts 8.1 and 8.2 are delimited by two guide plates 18.1 and 18.2 arranged opposite one another.
- the guide rollers 6.1 and 6.2 are assigned guide plates 22.1 and 22.2, by means of which suction of the ambient air is avoided.
- Such guide plates 22.1 and 22.2 can preferably be designed such that a direct transition from the take-off device to the guide rollers can be shielded from the environment. Baffles of this type can also be used, for example, in the exemplary embodiment in FIG. 1.
- the gathering and depositing of the thread sheet in the collecting gap 7 takes place in the same way as already explained for the previous exemplary embodiment.
- the guide speed of the guide rollers 6.1 and 6.2 and the guide speed of the guide belts 8.1 and 8.2 can be set differently.
- the density of the nonwoven fabric produced can be increased by a lower guide speed of the guide belts 8.1 and 8.2.
- it is also possible to loosen the fiber fleece by setting the guide speed of the guide belts 8.1 and 8.2 higher than the guide speed of the guide rollers 6.1 and 6.2.
- the guide speed of the guide rollers 6.1 and 6.2 and the guide speeds of the guide belts 8.1 and 8.2 can also be operated with a certain speed difference.
- each guide roller 6.1 and 6.2 and each guide belt 8.1 and 8.2 are driven separately.
- FIG. 4 A further exemplary embodiment of the device according to the invention is shown schematically in FIG. 4, the illustration of the spinning device and the take-off device again being dispensed with.
- the spinning device, the take-off device and the screen tray 4 shown are identical to the previous exemplary embodiments.
- two guide rollers 6.1 and 6.2 and two guide belts 8.1 and 8.2 arranged downstream of the guide rollers 6.1 and 6.2 are provided for collecting and depositing the thread sheet 3.
- the guide rollers 6.1 and 6.2 are arranged at a distance from one another so that a collecting gap 7 is formed.
- the guide rollers 6.1 and 6.2 do not have a suction device, so that the thread sheet 3 can be guided through the collecting gap 7 without being placed on the contact surfaces of the guide rollers 6.1 and 6.2.
- the guide belts 8.1 and 8.2 are each guided between the drive rollers 19.1 and 19.2 and the deflecting rollers 9.1 and 9.2.
- the guide bands 8.1 and 8.2 are arranged in relation to one another in such a way that a collecting gap 7 formed between the guide bands 8.1 and 8.2 has a greater width on the side of the inlet 20 than at the outlet 21.
- the guide bands 8.1 and 8.2 are on the side facing the collecting gap 7 combined with a suction device 14.1 and 14.2. The guide belts 8.1 and 8.2 are thus sucked over essentially the entire length of the collecting gap 7.
- the collection and storage of the individual fiber strands of the thread sheet 3 is thus essentially carried out by the guide bands 8.1 and 8.2.
- the guide speeds of the guide rollers 6.1 and 6.2 and of the guide belts 8.1 and 8.2 can be designed very differently.
- the nonwoven fabric 5 is essentially produced in the collecting gap 7 formed by the guide bands 8.1 and 8.2. Due to the elongated suction of the guide bands 8.1 and 8.2 and the V-shaped arrangement of the guide bands 8.1 and 8.2, nonwoven fabrics with high densities can preferably be produced.
- the family of threads could be fed directly to the guide belts 8.1 and 8.2 through the take-off device.
- the guide rollers can be designed to be horizontally movable in order to enable the thread sheet to be collected predominantly on a drum.
- fleece trays with smaller masses can also be produced.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003111439 DE10311439A1 (en) | 2003-03-15 | 2003-03-15 | Assembly to spin and lay bands of melt spun filaments, for the production of nonwovens, has a filament take-off and spaced guide rollers with continuous belt extensions, to gather the filaments on a sieve laying surface |
DE10311439 | 2003-03-15 | ||
PCT/EP2004/002494 WO2004083510A1 (en) | 2003-03-15 | 2004-03-11 | Device and method for spinning and depositing a synthetic beer for producing nonwovens |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1606444A1 true EP1606444A1 (en) | 2005-12-21 |
Family
ID=32892237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04719381A Withdrawn EP1606444A1 (en) | 2003-03-15 | 2004-03-11 | Device and method for spinning and depositing a synthetic beer for producing nonwovens |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060000070A1 (en) |
EP (1) | EP1606444A1 (en) |
CN (1) | CN1759214A (en) |
DE (1) | DE10311439A1 (en) |
WO (1) | WO2004083510A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1941090A1 (en) * | 2005-10-26 | 2008-07-09 | Oerlikon Textile GmbH & Co. KG | Apparatus and method for laying down synthetic fibres to form a nonwoven |
EP2111487A2 (en) * | 2007-01-19 | 2009-10-28 | Oerlikon Textile GmbH & Co. KG | Apparatus and method for depositing synthetic fibers to form a non-woven web |
EP2126165B1 (en) * | 2007-01-31 | 2011-03-16 | Oerlikon Textile GmbH & Co. KG | Method and apparatus for drawing and depositing a plurality of fibers to form a non-woven |
WO2009013107A2 (en) * | 2007-07-25 | 2009-01-29 | Oerlikon Heberlein Temco Gmbh | Apparatus for treating a multifilament thread |
JP5527167B2 (en) * | 2010-11-09 | 2014-06-18 | トヨタ紡織株式会社 | Nonwoven fabric manufacturing equipment |
EP2841634B1 (en) | 2012-04-27 | 2018-06-06 | Oerlikon Textile GmbH & Co. KG | Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven |
WO2013180304A1 (en) * | 2012-06-01 | 2013-12-05 | 日本ノズル株式会社 | Nonwoven fabric manufacturing device and monwoven fabric manufacturing method |
US10704173B2 (en) | 2014-01-29 | 2020-07-07 | Biax-Fiberfilm Corporation | Process for forming a high loft, nonwoven web exhibiting excellent recovery |
US20150211159A1 (en) * | 2014-01-29 | 2015-07-30 | Biax-Fiberfilm | Apparatus for making a high loft, nonwoven web exhibiting excellent recovery |
US10961644B2 (en) | 2014-01-29 | 2021-03-30 | Biax-Fiberfilm Corporation | High loft, nonwoven web exhibiting excellent recovery |
WO2015181700A1 (en) * | 2014-05-29 | 2015-12-03 | PASTACALDI, Silvia | Method for making pads of absorbent products and pad made with the method |
CN105568560A (en) * | 2014-10-08 | 2016-05-11 | 张家港骏马无纺布有限公司 | Fluffy melt-blow cloth preparation method |
CN113622085A (en) * | 2020-05-07 | 2021-11-09 | 新丽企业股份有限公司 | Apparatus and method for manufacturing fiber structure with adjustable density |
DE102020116315A1 (en) * | 2020-06-19 | 2021-12-23 | NVH Czech S.R.O. | Continuous fiber fleece manufacturing process as well as associated fiber fleece manufacturing arrangement and fiber fleece board |
WO2023146913A1 (en) * | 2022-01-25 | 2023-08-03 | Rowan University | Assembly of polymer staple nanofiber yarn |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3708561A (en) * | 1969-11-05 | 1973-01-02 | Teijin Ltd | Process for producing non-woven filamentary structure |
US4089720A (en) * | 1975-11-28 | 1978-05-16 | Monsanto Company | Method and apparatus for making a nonwoven fabric |
JPS5668152A (en) * | 1979-11-01 | 1981-06-08 | Toa Nenryo Kogyo Kk | Nonwoven fabric |
JPH0577663A (en) * | 1991-06-10 | 1993-03-30 | Ishikawajima Harima Heavy Ind Co Ltd | Power feed device for moving body having track |
US6588080B1 (en) * | 1999-04-30 | 2003-07-08 | Kimberly-Clark Worldwide, Inc. | Controlled loft and density nonwoven webs and method for producing |
-
2003
- 2003-03-15 DE DE2003111439 patent/DE10311439A1/en not_active Withdrawn
-
2004
- 2004-03-11 EP EP04719381A patent/EP1606444A1/en not_active Withdrawn
- 2004-03-11 WO PCT/EP2004/002494 patent/WO2004083510A1/en active Application Filing
- 2004-03-11 CN CN200480006765.0A patent/CN1759214A/en active Pending
-
2005
- 2005-09-08 US US11/222,472 patent/US20060000070A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004083510A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10311439A1 (en) | 2004-09-23 |
WO2004083510A1 (en) | 2004-09-30 |
CN1759214A (en) | 2006-04-12 |
US20060000070A1 (en) | 2006-01-05 |
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