EP4301912A1 - Verfahren zur herstellung zumindest eines filaments, bedampfungsvorrichtung zur durchführung eines derartigen verfahrens und filamentproduktionsanlage mit einer derartigen bedampfungsvorrichtung - Google Patents
Verfahren zur herstellung zumindest eines filaments, bedampfungsvorrichtung zur durchführung eines derartigen verfahrens und filamentproduktionsanlage mit einer derartigen bedampfungsvorrichtungInfo
- Publication number
- EP4301912A1 EP4301912A1 EP22711507.8A EP22711507A EP4301912A1 EP 4301912 A1 EP4301912 A1 EP 4301912A1 EP 22711507 A EP22711507 A EP 22711507A EP 4301912 A1 EP4301912 A1 EP 4301912A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- filament
- steaming
- dry
- area
- 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.)
- Pending
Links
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000004806 packaging method and process Methods 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 238000010025 steaming Methods 0.000 claims description 137
- 238000012545 processing Methods 0.000 claims description 29
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
- B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
Definitions
- the invention relates to a method for producing at least one filament, in particular an artificial turf filament, a packaging tape or a monofilament, preferably a group of filaments, a steaming device for carrying out such a method and a filament production plant with such a steaming device.
- a method has already been proposed which comprises at least one stretching step in which the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament, is stretched. Steam flows around the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament, in a steaming area before and/or during stretching.
- the object of the invention is in particular to provide a generic method and a generic vapor deposition device with improved properties in terms of resource consumption, in terms of reproducibility of a filament quality and in terms of a reject quantity.
- the object is achieved according to the invention by the features of claim 1 and claim 12, while advantageous configurations and developments of the invention can be found in the dependent claims.
- the invention is based on a method for producing at least one filament, in particular an artificial turf filament, a packaging tape or a monofilament, preferably a group of filaments, with at least one stretching step in which the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament , is stretched, wherein the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament, is flowed around by steam in a steam treatment area before and/or during stretching.
- At least one vapor parameter of the water vapor located in the vaporization area is controlled to counteract the formation of drops on the at least one filament.
- the filament can be created as an endless plastic fiber, in particular for simultaneous further processing, or as a plastic fiber with a fixed length, in particular for subsequent further processing.
- the method includes in particular a raw material processing step. In the raw material processing step, the at least one filament is produced, in particular as a monofilament or as a small ribbon.
- the at least one filament can be produced as a single-component filament or as a multi-component, in particular multi-layer, filament, in particular as a bico or as a trico.
- filaments are produced in parallel and further processed in particular as a group.
- filaments within the family are spaced from each other.
- the filaments of a group are particularly preferably arranged in the same plane, in particular in a horizontal plane, during the process.
- a raw material with optional additives is preferably melted down by a raw material processing station of a filament production plant and formed into the filament, in particular extruded.
- the base material includes, for example, polypropylene (PP), polyethylene (PE), in particular high-density polyethylene (PE-HD), linear low-density polyethylene (PE-LLD) and/or low-density polyethylene (PE-LD) , polyvinyl chloride, polystyrene,
- Additives include, for example, UV stabilizers, colorants and/or heat stabilizers.
- the filament consists in particular of at least 50%, preferably more than 75%, preferably at least 90%, particularly preferably more than 95%, based on a volume and/or a mass of the filament of the base material.
- at least one further basic material with optional additives is melted down by the raw material processing station of the filament production plant, in particular separately from the basic material.
- the base material and the at least one other base material are preferably extruded in a molten state with at least one extruder each of an extrusion device of the raw material processing station and brought together in a tool, in particular a spinning head, of the raw material processing station and formed into the filament.
- the at least one further base material preferably comprises at least one of the materials already mentioned for the base material.
- the additional base material can have the same composition as the base material or a different composition.
- the same or different additives can be added to the further base material as to the base material.
- an adhesion promoter in particular an additional adhesive layer, is applied between the base material and the further base material.
- the base material and the at least one other base material together make up at least 50%, preferably more than 75%, preferably at least 90%, particularly preferably more than 95% of a total volume and/or a total mass of the filament.
- the basic substance and the at least one further basic substance can comprise the same proportion or proportions of different sizes in the total volume and/or the total mass.
- the base material and the at least one further base material preferably form different areas of a cross section of the filament.
- the base material forms a core of the filament and the further base material forms an at least partial, in particular complete, sheathing of the core in the cross section of the filament (core-sheet method).
- the base material and the further base material form different layers arranged in parallel in the cross section of the filament (side-by-side method).
- the cross section of the filament preferably extends perpendicularly to a maximum longitudinal extent of the filament in the unwound state.
- all cross-sections of the filament parallel to the cross-section already mentioned are identical in the unwound state, at least within the scope of a production accuracy of the method.
- the method includes a winding step, in which the filament is wound onto a spool from a winding station of the filament production system.
- each filament of the group of filaments is wound onto its own bobbin by the winding station or several winding stations of the filament production plant.
- the filament is produced in an endless process, alternatively in an offline process.
- the method is preferably intended to produce the filament, in particular in a drawn state of the filament, with a mass per unit length of less than 240 g/m, in particular less than 160 g/m, particularly preferably less than 80 g/m and particularly preferred to produce more than 0.01 g / m.
- the filament is intended in particular as a starting material for an artificial turf, in particular as a pile yarn for a tuft of the artificial turf.
- the filament is manufactured as a packaging tape or as a monofilament.
- “Provided” should be understood to mean, in particular, specially programmed, specially designed and/or specially equipped. The fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
- the stretching step is carried out between the raw material processing step and the winding step.
- the filament production plant comprises at least two filament conveyors, which transport, in particular pull, the filament from the raw material processing station to the winding station along a transport route of the filament production plant.
- the filament conveyors preferably apply a tensile stress to the filament at least in sections along the transport section.
- the filament conveyors preferably stretch a section of the filament that is located between the filament conveyors along the transport path, in particular by means of a different conveying speed of the filament conveyors.
- the transport path can in particular lead along a straight line or have a two-dimensional or three-dimensional course by means of deflection elements of the filament production plant.
- the steaming area is preferably arranged along the transport path between the filament conveyors.
- the section that is stretched is particularly preferably located within the vapor deposition area.
- the section that is stretched is located in a stretching area that borders on a side of the vapor deposition area that faces the winding device or that partially overlaps the vapor deposition area on this side.
- the steaming area is limited in particular by a steaming chamber of a steaming device of the filament production plant.
- the steaming device preferably produces an overpressure relative to the atmosphere in the steaming area.
- the steaming device in the steaming area sets a continuous flow of steam, in particular dry steam, over the filament at least for the duration of the method.
- the steam parameter is preferably monitored by at least one sensor element of the steaming device.
- the steam parameter can be monitored in particular in the steaming area, before the water vapor, in particular the dry steam, is admitted into the steaming area and/or after the water vapor, in particular the dry steam, is let out of the steaming area.
- the steam parameter is preferably a state variable of the water vapor, in particular dry steam, for example a temperature, a pressure, a moisture content or the like, and/or a flow variable, for example a volume flow, a flow rate or the like.
- the steam parameter can be detected directly by means of the sensor element or can be determined indirectly as a function of sensor data from the sensor element, in particular by a control or regulating unit of the filament production system or the steaming device.
- a “control or regulation unit” is to be understood in particular as a unit with at least one electronic control system.
- Control electronics is to be understood in particular as a unit with a processor unit and with a memory unit and with an operating program stored in the memory unit.
- the steam parameter is preferably controlled by the control or regulation unit, particularly preferably regulated.
- the steaming device is intended in particular to uniformly heat the section of the filament to be stretched.
- the control or regulation unit is intended in particular to set the steam parameters in such a way that condensation of the Water vapor, in particular the dry vapor, can be counteracted on the filament.
- the control or regulating unit keeps the humidity of the water vapor below a threshold value, in particular below a 100% rel. Humidity, preferably below a 50% rel.
- Humidity preferably below a 25% rel. Humidity, at an entry temperature of the filament in the vapor deposition area.
- the water vapor is particularly preferably fed in as dry vapor in the vaporization area.
- the control or regulation unit controls or regulates at least one process parameter of the steaming area, for example a wall temperature of the steaming chamber, in order to counteract the formation of droplets within the steaming area, and in particular within components of the steaming device that are fluidically connected to the steaming area.
- Controlling or regulating the at least one process parameter can preferably counteract a cooling of the steam, in particular the dry steam, when it comes into contact with the steaming chamber.
- the steaming area, in particular the steaming chamber is preferably designed to support a laminar flow of the water vapor, in particular the dry steam, in particular to counteract turbulence and accumulation areas of the water vapor, in particular the dry steam.
- the risk of droplet formation on the filament can advantageously be kept low as a result of the configuration according to the invention.
- a risk of local cooling of the filament in particular an inhomogeneous temperature distribution within the filament, can advantageously be kept low.
- an additional device for drying the filament can advantageously be dispensed with.
- an advantageously homogeneous curing of the filament can be achieved.
- an advantageously constant quality of the filament can be achieved.
- the method can be carried out with an advantageously low water consumption.
- the filament can advantageously be drawn quickly.
- an advantageously high throughput of the filament production plant can be achieved.
- physical parameters in particular the steam parameters, such as a temperature of the steam, a pressure of the steam, a quantity of steam and/or a steam distribution in the steaming chamber can advantageously be flexibly adapted to a material type and/or composition of the filament be adjusted.
- single-component filaments and multi-component filaments can advantageously be produced reliably.
- the steam in particular the dry steam
- a steam generator of the steaming device evaporates water to produce the steam, in particular the dry steam.
- the steam, in particular the dry steam is particularly preferably heated by the steam generator to a temperature of more than 150.degree. C., particularly preferably of more than 170.degree.
- the steam, in particular the dry steam is preferably heated by the steam generator to a temperature of less than 400°C, in particular of less than 350°C, particularly preferably of less than 300°C.
- the steaming device obtains the steam, in particular the dry steam, from an external steam source.
- the steaming device includes a heating and/or cooling unit for adjusting the temperature of the water vapor, especially the dry steam, drawn in particular from an external steam source, before an inlet into the steaming area.
- the moisture content of the water vapor can advantageously be kept low as a result of the design according to the invention.
- the steam is superheated to set the steam parameter before it is admitted into the steaming area, in particular in order to generate dry steam.
- the steam generator particularly preferably generates the steam as dry steam.
- An evaporator of the steam generator preferably generates saturated steam by heating water.
- a superheater of the steam generator preferably generates the steam, which is in the form of dry steam, by further heating the saturated steam.
- the steam generator preferably comprises electric steam generator heating elements for heating the water and/or superheating the steam.
- the control or regulating unit sets the steam generator heating elements to regulate the temperature of the steam, in particular the dry steam.
- a mass ratio of gaseous water in the water vapor to a total mass of the water vapor at an inlet into the steaming area is more than 0.9, preferably more than 0.95, more preferably more than 0.99.
- the configuration according to the invention makes it possible to keep the risk of precipitation of liquid water contained in the water vapor advantageously low.
- a temperature to which the steam, in particular the dry steam, is brought before an inlet into the steaming area is set in at least one method step as a function of the steam parameter of the steaming area.
- the control or regulating unit preferably specifies the temperature as a function of the steam parameter to which the steam, in particular the dry steam, is brought before an inlet into the steaming area.
- the control or regulation unit increases the temperature in order to reduce a risk of droplet formation.
- the control or regulating unit preferably controls or regulates an adjustment of the pressure of the steam, in particular the dry steam, by means of an inlet valve of the steaming device.
- control or regulating unit varies the temperature in particular so that the steam, in particular the dry steam, has a minimum temperature when it exits the steaming area, in particular it is still present as dry steam.
- control or regulation unit varies the temperature of the steam, in particular the dry steam, upstream of the inlet valve between 125°C and 400°C, preferably between 150°C and 350°C, particularly preferably between 170°C and 300°C.
- control or regulation unit lowers the temperature in order to save energy and/or reduce thermo-mechanical stress of the filament, in particular when the risk of drop formation is below a tolerance value.
- control or regulation unit assesses the risk of droplet formation at least based on the vapor parameter and optionally based on other parameters.
- Further parameters include in particular the process parameter of the vapor deposition area, a filament parameter of the filament, in particular a filament temperature, a flexural strength of the filament or the like, an environmental parameter of an area surrounding the vapor deposition device, in particular the transport route, for example an ambient temperature, an ambient pressure, an air humidity or similar. Due to the configuration according to the invention, the method can advantageously react flexibly to production conditions. In particular, despite adverse production conditions, a risk of droplet formation can advantageously be kept low. In particular, energy consumption and/or water consumption can advantageously be kept low under favorable production conditions.
- the steam in particular the dry steam
- the steam generator or the external steam source preferably applies a pressure of more than 2 bar, in particular more than 3 bar, to the steam, in particular to the dry steam.
- the steam generator or the external steam source preferably applies a pressure of less than 11 bar, in particular less than 7 bar, particularly preferably less than 4 bar, to the steam, in particular the dry steam.
- the inlet valve of the steaming device preferably sets a pressure of the water vapor, in particular of the dry steam, within the steaming area. In particular, the inlet valve sets a pressure of less than 2 bar, preferably less than 1 bar, particularly preferably less than 0.5 bar, above atmospheric.
- the control or regulation unit adjusts an expansion of the water vapor, in particular the dry steam, by means of the inlet valve in such a way that the temperature of the water vapor, in particular the dry steam, in the steam treatment area is at least greater than 100° C., preferably greater than 110° C., particularly preferably remains above 115°C.
- the control or regulating unit in particular depending on the base material used and/or the at least one other base material for the filament, adjusts an expansion of the steam, in particular the dry steam, by means of the inlet valve in such a way that the temperature of the steam, in particular of the dry steam, in the steaming area below 200°C, in particular below 175°C, preferably below 150°C. Due to the configuration according to the invention, the steam, in particular the dry steam, can advantageously be generated efficiently and transported to the steaming area.
- an inlet valve for admitting the steam, in particular the dry steam, into the steaming area in ok
- the control or regulating unit uses the inlet valve to regulate the pressure within the steam treatment area, in particular as a function of the steam parameter.
- the inlet valve is preferably designed as a control valve.
- the inlet valve is particularly preferably designed as a pneumatic control valve. Due to the configuration according to the invention, a pressure adjustment of the steam, in particular of the dry steam, can advantageously be flexibly adapted to the steam parameters when it is fed into the steaming region. In particular, a risk of droplet formation can advantageously be kept low.
- a temperature of the steam in particular the dry steam
- the control or regulation unit regulates the temperature of the steam, in particular by controlling the steam generator, the inlet valve and optionally an electrical heating element of the steaming device.
- the heating element is preferably arranged on, in particular an outer wall, of the vapor deposition chamber, in particular in order to heat a wall of the vapor deposition chamber.
- the heating element is let into or integrated into a wall of the vapor deposition chamber.
- the heating element is particularly preferably arranged at points in the steaming chamber which have a high risk of droplet formation, in particular due to thermal bridges and/or accumulation areas for the steam, in particular the dry steam, such as in particular corners, inlets and/or outlets for the steam, in particular the dry steam, and/or for the filament.
- a risk of condensation of the water vapor, in particular of the dry vapor can advantageously be kept low as a result of the design according to the invention.
- the water vapor in particular the dry vapor
- the steam is particularly preferably sucked out of the steaming area by means of a fan of the steaming device.
- Steam, in particular dry steam is particularly preferred removed as one point, in particular at at least two points, from the vapor deposition area.
- steam outlets of the vapor deposition chamber are arranged in different chamber halves of the vapor deposition chamber, with the chamber halves being arranged next to one another in particular along the transport path.
- the steam outlets are arranged on the same surface, preferably a floor, alternatively a ceiling, of the steaming chamber.
- the vapor outlets are arranged on opposite side walls of the vapor deposition chamber, in particular along the transport route.
- the steam outlets are arranged in an environment where there is a high risk of droplet formation, for example due to thermal bridges, accumulation areas for the water vapor, in particular the dry vapor, or the like.
- the steam outlets face an inlet opening and/or outlet opening of the steaming chamber, which are provided for guiding the filament through the steaming chamber.
- a single steam outlet of the steaming chamber extends over a substantially entire longitudinal extent of the steaming chamber along the transport route of the filament .
- the control or regulating unit preferably adjusts the fan as a function of the steam parameter and/or as a function of a setting of the inlet valve.
- the fan is provided to limit a maximum dwell time, and in particular an associated heat emission, of the water vapor, in particular of the dry vapor, within the steaming area. Due to the configuration according to the invention, a flow of the steam, in particular of the dry steam, through the steaming area can advantageously be precisely controlled. In particular, a risk of turbulence within the vapor deposition area can advantageously be kept low. In addition, an advantageously high level of personal protection for an operator of the steaming device can be achieved.
- the steam, in particular the dry steam be distributed over a plurality of steam inlets in the steaming area in order to achieve a homogeneous distribution of the steam, in particular the dry steam.
- the steaming chamber includes an inlet area in which the steam, in particular the dry steam, in the Vaporization chamber is admitted.
- the steaming device preferably comprises a distribution system which is arranged in particular in the inlet area.
- the distribution system is fluidically connected to the inlet valve.
- the distribution system comprises a large number of openings to allow the steam, in particular the dry steam, to pass from the inlet area into the steaming area.
- the distribution system distributes the steam, in particular the dry steam, homogeneously in the steaming area.
- a main extension plane of the distribution system preferably runs at least essentially parallel to the transport route, in particular at least to the section of the transport route in the vapor deposition area.
- a “main extension plane” of a structural unit is to be understood in particular as a plane which is parallel to a largest side surface of an imaginary cuboid which just completely encloses the structural unit and in particular runs through the center point of the cuboid.
- “Substantially parallel” is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, with the direction relative to the reference direction deviating in particular by less than 8°, advantageously less than 5° and particularly advantageously less than 2°.
- the steaming chamber preferably includes a line unit for guiding the steam, in particular the dry steam, from the inlet valve to the distribution system.
- the distribution system is formed by the line unit.
- the line unit to form the distribution system has a flat sub-area, in particular a ladder-shaped, rake-shaped, wavy line-shaped or spiral-shaped sub-area, on which the multiple steam inlets, in particular openings or nozzles, are arranged for an inlet of the water vapor, in particular the dry steam, into the inlet area .
- the distribution system preferably comprises at least two steam inlets which are arranged at least essentially parallel to the transport route.
- the distribution system preferably comprises at least two steam inlets which are arranged transversely to the transport path.
- the configuration according to the invention enables an advantageously homogeneous distribution of the water vapor, in particular the dry vapor, to be achieved in the steaming area.
- the method comprises a further stretching step, before which and/or during which hot air flows around the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament.
- the filament production plant comprises at least one further filament conveyor, which is arranged along the transport route after the filament conveyors already mentioned.
- the further stretching step is carried out by the further filament conveyor and one of the two filament conveyors, in particular by means of a different conveying speed of the filament conveyors involved.
- the filament production plant includes a hot-air oven, which is arranged along the transport route between the further filament conveyor and one of the two filament conveyors.
- the further stretching step with hot air is carried out after the stretching step with steam, in particular with dry steam.
- the further stretching step in particular analogously to the stretching step, is carried out with steam, in particular dry steam.
- the method comprises a fixing step, during which hot air or steam, in particular dry steam, flows around the at least one filament, in particular the artificial turf filament, the packaging tape or the monofilament.
- the fixing step is carried out in particular between the stretching step, in particular the further stretching step, and the winding step.
- the fixing step is carried out in particular by a fixing station of the filament production plant.
- the fixing station includes a closed fixing area, through which the transport section runs and in which the hot air or steam, in particular dry steam, flows around the filament.
- the method includes a further fixing step, which is carried out by a further fixing station of the filament production plant.
- the further fixing step is carried out in particular between the fixing step and the winding step.
- the further fixing step is omitted if steam, in particular dry steam, is used to fix the filament in the first fixing step.
- steam in particular dry steam
- a shorter fusing area is used for the fusing step than when forced air is used.
- the steam, in particular the dry steam, for the fixing step can be generated by the same steam generator as the steam, in particular the dry steam, for the stretching step or by a further steam generator of the steaming device.
- the configuration according to the invention advantageously makes it possible to achieve homogeneous material properties of the filament.
- the vapor deposition device comprises a vapor deposition chamber for receiving the portion of the filament to be drawn.
- the vapor deposition chamber has a longitudinal axis which is aligned at least essentially parallel to that of the transport path.
- the vapor deposition chamber surrounds the section of the transport section in particular in a cylindrical manner, in particular with the longitudinal axis being the same as a cylinder axis.
- the vapor deposition chamber includes a frame for a horizontal alignment of the longitudinal axis.
- the vapor deposition chamber includes the distribution system.
- the Flaupter extension plane of the distribution system is in particular arranged at least essentially parallel to the longitudinal axis in the interior of the vapor deposition chamber.
- the distribution system divides the interior of the vapor deposition chamber into the vapor deposition area and the inlet area.
- the vapor deposition chamber includes the line unit, which opens into the inlet area.
- the steaming device includes in particular the inlet valve, which is connected to the line unit.
- the vapor deposition chamber comprises at least two vapor outlets. The steam outlets are arranged in particular in the steaming area.
- the steam outlets are arranged on the floor, alternatively on the ceiling, of the steaming chamber.
- the steaming device includes in particular the fan for sucking off the Steam, in particular the dry steam, from the steaming area.
- the steaming device preferably comprises the at least one sensor element for detecting the steam parameter.
- a filament production plant for the production of at least one filament, in particular the one already mentioned, in particular an artificial turf filament, a packaging tape or a monofilament, with a steaming device according to the invention and with at least one raw material processing station proposed spinning the filament.
- the filament production plant includes an additional steaming device, which in particular is arranged downstream of the steaming device, in particular for a repetition of the stretching step.
- the filament production system includes at least one, preferably one or two, additional steaming devices and/or at least the hot-air oven and optionally another hot-air oven for carrying out the further stretching step with steam, in particular with dry steam, or with hot air.
- the raw material processing station includes in particular a dosing device for dosing the base material and optionally the additives.
- the raw material processing station comprises in particular at least one further dosing device for dosing the at least one further base material and optionally the additives.
- the raw material processing station includes in particular a melting device for melting the base material and optionally the additives.
- the raw material processing station includes in particular a further melting device for melting the further basic material and optionally the additives.
- the raw material processing station preferably comprises an extrusion device for shaping the filament from the melted base material and optionally from the at least one further base material.
- the raw material processing station preferably comprises at least one water bath for cooling the extruded filament.
- the filament production plant comprises in particular at least the two filament conveyors and the additional filament conveyor for transporting and stretching the Filaments along the transport route.
- the filament production system includes in particular the fixing station and optionally the further fixing station.
- the filament production plant comprises at least one fibrillating device for fibrillating the filament designed as a small ribbon.
- the filament production system preferably comprises at least the winding device for winding the filament onto the bobbin.
- the filament production plant preferably includes the steam generator for generating the steam, in particular the dry steam.
- the steam generator is preferably fluidically connected to the steaming area via the inlet valve.
- the filament production system preferably includes the control or regulation unit for setting the steam parameter, in particular for controlling the inlet valve and/or the steam generator.
- the method according to the invention, the vapor deposition device according to the invention and/or the filament production plant according to the invention should/should not be limited to the application and embodiment described above.
- the method according to the invention, the vapor deposition device according to the invention and/or the filament production plant according to the invention can/can have a number of individual elements, components and units as well as method steps that differs from the number specified here in order to fulfill a function described herein.
- values lying within the specified limits should also be considered disclosed and can be used as desired.
- FIG. 1 shows a schematic representation of a filament production plant according to the invention
- FIG. 2 shows a schematic representation of a vapor deposition device according to the invention
- FIG. 3 shows a schematic representation of a steam generator of the filament production plant
- FIG. 4 shows a schematic flow chart of the method according to the invention.
- FIG. 1 shows a filament production plant 28.
- the filament production plant 28 is designed in particular as an extrusion spinning plant.
- the filament production plant 28 is provided in particular for the production of at least one filament 12 .
- the filament 12 is designed in particular as an artificial turf filament, as a packaging tape or as a monofilament.
- the filament production plant 28 comprises at least one raw material processing station 30.
- the filament production plant 28 comprises in particular a front filament conveyor 32.
- the filament production plant 28 comprises a steaming device 26.
- the filament production plant 28 comprises in particular a rear filament conveyor 38.
- the filament production plant 28 preferably comprises a flow air oven 40.
- the filament production plant optionally comprises 28 a fibrillation device 36.
- the filament production plant 28 preferably comprises a further filament conveyor 42.
- the filament production plant 28 preferably comprises at least one fixing station 44.
- the filament production plant 28 optionally comprises at least one further fixing station 46.
- the filament production plant 28 comprises in particular an additional filament conveyor 48.
- the filament production plant 28 comprises preferably a coating device 50.
- the coating device 50 is in particular trained as a roller preparator.
- Filament production system 28 preferably includes at least one sheet sorter 52.
- Filament production system 28 preferably includes at least one winding device 54.
- Filament production system 28 preferably includes at least one steam generator 34.
- the filament production plant 28 includes in particular a control or regulation unit 62 for carrying out a method 10 for producing the at least one filament 12, which is explained in more detail in FIG.
- the front filament conveyor 32, the rear filament conveyor 38, the further filament conveyor 42 and/or the additional filament conveyor 48 are provided in particular for transporting the filament 12 along a transport path from the raw material processing station 30 to the winding device 54.
- the front filament conveyor 32 is arranged along the transport route, in particular between the raw material processing station 30 and the steaming device 26 .
- the steaming device 26 is preferably arranged along the transport route between the front filament conveyor 32 and the rear filament conveyor 38 .
- the steam generator 34 is fluidically connected in particular to the steaming device 26 .
- the steam generator 34 is arranged, for example, on a floor above, to the side or below the transport path.
- the steam generator 34 and the steaming device 26 are arranged directly adjacent to one another and/or arranged in a common housing.
- the rear filament conveyor 32 is arranged along the transport route, in particular between the hot-air oven 40 and the further filament conveyor 42 .
- the fibrillation device 36 is arranged along the transport route, in particular between the hot-air oven 40 and the further filament conveyor 38 .
- the further filament conveyor 38 is preferably arranged along the transport path between the hot-air oven 40, in particular the fibrillation device 36, and the fixing station 44.
- the fixing station 44 is preferably arranged along the transport route between the further filament conveyor 38 and the further fixing station 46, in particular the additional filament conveyor 48.
- the further fixing station 46 is preferably arranged between the fixing station 46 and the additional filament conveyor 48 along the transport route.
- the additional filament conveyor 48 is preferably arranged along the transport route between the coating device 50 and the fixing station 44, in particular the further fixing station 46.
- the coating device 50 is preferably arranged between the additional filament conveyor 48 and the blade sorter 52 along the transport route.
- the share sorter 52 is preferably arranged along the transport route between the coating device 50 and the winding device 54 .
- FIG. 2 shows the vapor deposition device 26.
- the vapor deposition device 26 comprises, in particular, at least one vapor deposition chamber which delimits a vapor deposition region 16.
- the steaming device 26 comprises a line unit for conducting water vapor 18, in particular dry steam, from a steam source, in particular the steam generator 34 or an external steam source, into the steaming area 16.
- the steaming device 26, in particular the line unit preferably comprises several within the steaming chamber Steam inlets 22, 24 for feeding the steam 18, in particular the dry steam, into the steaming area 16.
- the steaming device 26 preferably comprises at least one distribution system 67 within the steaming chamber.
- the steaming chamber preferably comprises at least two steam outlets 108, 116, in particular two steam outlets of the distribution system 67 , for letting off the steam 18, in particular the dry steam, from the steaming area 16.
- the steaming device 26 preferably comprises at least one fan 60 for sucking off the steam 18, in particular of the dry steam, from the steaming area 16.
- the fan 60 is arranged in particular on at least one of the steam outlets 108, 116.
- the steaming chamber comprises a steamer drain 66 for draining condensed water from the steaming chamber.
- the steaming device 26 preferably comprises at least one electric heating element 68 for heating the steaming chamber, in particular a wall of the steaming chamber.
- the steaming device 26, in particular the channel unit preferably comprises at least one valve 56 for manually disconnecting and connecting the steam inlets 22, 24 to the steam source, in particular the steam generator 34.
- the steaming device 26, in particular the channel unit preferably comprises at least one inlet valve 20.
- the Inlet valve 20 is provided in particular for regulating a steam parameter of the steam 18, in particular the dry steam.
- the intake valve 20 is controlled by the control or regulating unit 62 .
- the inlet valve 20 is preferably designed as a pneumatic control valve.
- the steaming device 26 preferably comprises at least one pressure sensor 58 for monitoring the pressure of the steam 18, in particular the dry steam.
- the pressure sensor 58 is arranged in particular between the inlet valve 20 and the steam inlets 22, 24, in particular outside the steaming chamber.
- the pressure sensor 58 is particularly at the Control or regulating unit 62 connected.
- the line unit preferably includes a drain 64, in particular with a pressure relief valve, for draining water vapor 18, in particular dry steam, from the line unit.
- Steaming device 26 optionally includes at least one sensor element in steaming region 16.
- the sensor element is embodied as a temperature sensor, infrared sensor, thermal imaging camera or the like, in particular for detecting a temperature of water vapor 18, in particular dry steam, of filament 12 and/or an inner wall of the vaporization chamber.
- the sensor element is designed as a further pressure sensor for detecting a pressure of the water vapor 18, in particular of the dry vapor, in the vaporization region 16.
- the sensor element is a moisture sensor for detecting a moisture content of the water vapor 18, in particular the dry vapor.
- the sensor element is connected to the control or regulating unit 62 .
- FIG. 3 shows the steam generator 34.
- the steam generator 34 includes in particular a water inlet 72 for an inlet of liquid water into the steam generator 34.
- the steam generator 34 preferably includes at least one feed water tank 74 for intermediate storage of the water.
- the water inlet 72 opens out at the feed water tank 74.
- the steam generator 34 preferably comprises at least one feed water heating element in the feed water tank 74 for preheating the water in the feed water tank 74.
- the steam generator 34 preferably comprises at least one feed water temperature sensor 80 for monitoring a temperature of the water in the feed water tank 74.
- the steam generator 34 preferably comprises at least one feed water temperature controller 86, in particular an electrical switch for activating or deactivating the feed water heating element, for setting a feed water temperature of the water in the feed water tank 74 by the control or regulating unit 62.
- the water in the feed water tank 74 is particularly preferably heated to a temperature of between 50° C. and 70° C. to release the water vapor 18, in particular the dry steam.
- the steam generator 34 preferably includes an evaporator 76, in particular for evaporating the water from the feed water tank 74.
- the feed water tank 74 is fluidically connected to the evaporator 76.
- the steam generator 34 includes at least one evaporator heating element in the evaporator 76 for evaporating the water.
- the steam generator 34 preferably includes at least one evaporator temperature sensor 82 for monitoring a temperature of a saturated steam generated by the evaporator 76 .
- the steam generator 34 preferably includes at least one evaporator temperature controller 88, in particular an electrical switch for activating or deactivating the evaporator heating element, for setting a saturated steam temperature of the saturated steam by the control or regulating unit 62.
- the saturated steam is particularly preferably used to produce the Water vapor 18, in particular the dry steam, heated to a temperature between 130 ° C and 180 ° C.
- the control or regulating unit 62 particularly preferably sets a target value for the saturated steam temperature of the saturated steam as a function of a pressure of the saturated steam, in particular of a target pressure of the water vapor 18, in particular of the dry steam.
- the steam generator 34 preferably includes a water bypass 100 connected to the evaporator 76 for draining water from the evaporator 76.
- the water bypass 100 preferably has a pneumatic control valve which is controlled in particular by the control or regulating unit 62 .
- the steam generator 34 preferably includes a steam bypass connected to the evaporator 76, in particular with a pressure relief valve, for releasing steam from the evaporator 76.
- the steam generator 34 includes in particular an expansion tank 94.
- the water bypass 100 preferably opens into the expansion tank 94
- the steam bypass 102 preferably opens into the equalizing tank 94.
- the equalizing tank 94 has in particular a generator steam outlet 96 for discharging steam from the steam generator 34 that is unused or unusable, in particular in the course of the method 10.
- the equalizing tank 94 comprises in particular a generator water outlet 98 for draining water from the steam generator 34.
- the steam generator 34 preferably includes a superheater 78, in particular for superheating the saturated steam from the evaporator 76.
- the superheater 78 is fluidically connected to the evaporator 76.
- the steam generator 34 preferably comprises at least one dry steam heating element in the superheater 78 for superheating the saturated steam.
- the steam generator 34 preferably comprises at least one dry steam temperature sensor 84 for monitoring a Temperature of the steam generated by the superheater 78 18, in particular the dry steam.
- Steam generator 34 preferably includes at least one dry-steam temperature controller 90, in particular an electrical switch for activating or deactivating the dry-steam heating element, for setting a temperature of steam 18, in particular dry steam, by control or regulating unit 62 Steam 18, in particular dry steam, is heated to a temperature between 180°C and 300°C.
- the control or regulating unit 62 particularly preferably sets a target value for the temperature of the water vapor 18, in particular the dry steam, as a function of a target pressure of the water vapor 18, in particular the dry steam.
- a dry steam outlet of the superheater 78 is connected in particular to the steaming device 26 .
- the steam generator 34 preferably includes a dry steam bypass 92 connected to the superheater 78 for letting out the steam 18, in particular the dry steam, from the superheater 78.
- the dry steam bypass 92 preferably has a pneumatic control valve, which is controlled in particular by the control or control unit 62 is controlled.
- the dry steam bypass 92 preferably opens into the expansion tank 94.
- FIG. 4 shows a flow chart of the method 10.
- the method 10 is preferably provided for the production of a group of filaments 12.
- the method 10 includes in particular a raw material processing step 118 in which the raw material processing station 30 spins the filament 12, in particular a group of filaments 12.
- the method 10 comprises at least one stretching step 14.
- the at least one filament 12 is stretched, in particular by means of the front filament conveyor 32 and the rear filament conveyor 38.
- the front filament conveyor 32 and the rear filament conveyor 38 act on one located in the steaming region 16 Section of the filament 12 with a tensile stress along the transport path.
- the at least one filament 12 has steam 18, in particular dry steam, flowing around it in the steaming region 16 during stretching.
- At least one steam parameter of the steam 18 located in the steaming area 16, in particular of the dry steam, is controlled to counteract the formation of drops on the at least one filament 12.
- the method 10 comprises a further stretching step 15.
- the further stretching step 15 the at least one filament 12 is in particular stretched once more, in particular by means of the rear filament conveyor 38 and the additional filament conveyor 42. While the at least one filament 12 is being stretched, processing air flows around it, in particular by means of the processing air oven 40.
- the rear filament conveyor is subjected to pressure 32 and the further filament conveyor 42 a section of the filament 12 located in the flow air oven 40 with a tensile stress along the transport path.
- the method 10 optionally includes fibrillating 120 the filament 12 formed as a ribbon.
- the fibrillating 120 is performed by the fibrillating device 36 .
- the fibrillation 120 is omitted.
- the fibrillation 120 is preferably carried out after the further stretching step 15 .
- Method 10 includes a fixing step 122.
- the fixing step 122 the at least one filament 12 is flowed around with processing air or steam 18, in particular the dry steam, in particular by means of the fixing station 44.
- the method 10 optionally includes a further fixing step 124, in particular if in the fixing step 122, in which the filament air flows around the filament 12 again, in particular by means of the further fixing station 46.
- the method 10 preferably includes a coating step 126.
- the coating device 50 applies a preparation liquid to the filament in the coating step 126 12 on.
- the method 10 optionally includes a sorting step 128.
- the group sorter 52 assigns the individual filaments 12 of the group to one, in particular one each, bobbin of the winding device.
- the method 10 includes, in particular, a winding step 130.
- the winding device 54 winds the filament 12 onto a bobbin, in particular the individual filaments 12 onto a bobbin each.
- the method 10 includes in particular a steam generation step 104.
- the steam generator 34 produces the steam 18, in particular the dry steam, in the steam generation step 104.
- the steam 18, in particular the dry steam is heated to a temperature of more than 125° C. in front of an inlet in the steaming area 16 in order to adjust the steam parameters.
- the steam 18, in particular the dry steam is superheated to set the steam parameter before it is admitted into the steaming area 16.
- the method 10 includes a steam injection step 106.
- the steam 18, in particular the dry steam is admitted into the steaming region 16.
- the control or regulating unit 62 controls the inlet valve 20 during the steam feeding step 106 in order to feed the steam 18, in particular the dry steam, into the steaming region 16 in a controlled manner.
- the steam 18, in particular the dry steam is expanded at an inlet into the steaming area 16.
- the water vapor 18, in particular the dry steam is admitted into the steaming area 16 distributed over the plurality of steam inlets 22, 24 of the distribution system 67 in order to achieve a homogeneous distribution of the water vapor 18, in particular the dry steam.
- the steam 18, in particular the dry steam flows around the section of the filament 12 located in the steaming region 16.
- the steam 18 admitted in the steaming region 16, in particular the dry steam flows continuously from the steam inlets 22, 24 to the steam outlets 108, 116.
- the method 10 includes a vapor removal step 110.
- the water vapor 18, in particular the dry vapor is actively removed from the vaporization region 16, in particular sucked off.
- the fan 60 sucks the water vapor 18, in particular the dry vapor, out of the steaming area 16.
- the control or regulating unit 62 preferably carries out a pressure regulation 114 .
- the control or regulation unit 62 controls the fan 60 and/or the inlet valve 20 and optionally the steam generator 34 in the course of the pressure regulation 114.
- the inlet valve 20 is used to admit the water vapor 18, in particular the dry steam, into the steaming area 16 depending on controlled by the steam parameter.
- the control or regulation unit 62 carries out the pressure regulation 114a in order to generate a constant overpressure relative to the atmosphere in the steaming area 16 and in particular to support a homogeneous distribution of the water vapor 18, in particular the dry vapor.
- the control or regulating unit 62 preferably carries out temperature regulation 112 .
- control or regulating unit 62 controls the steam generator 34 and optionally the inlet valve 20 and optionally the heating element 68 as part of the temperature regulation 112.
- a temperature to which the water vapor 18, in particular the dry steam, pre an inlet into the steaming area 16 is set depending on the steam parameter of the steaming area 16 .
- the control or regulation unit 62 carries out the temperature regulation 112 in order to prevent the water vapor 18, in particular the dry steam, from cooling down below a threshold value.
- a temperature of the steam 18, in particular the dry steam, in the steaming area 16 is kept above a pressure-dependent condensation temperature of the steam 18, in particular the dry steam.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
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DE102021104890.7A DE102021104890A1 (de) | 2021-03-01 | 2021-03-01 | Verfahren zur Herstellung zumindest eines Filaments, Bedampfungsvorrichtung zur Durchführung eines derartigen Verfahrens und Filamentproduktionsanlage mit einer derartigen Bedampfungsvorrichtung |
PCT/EP2022/055121 WO2022184696A1 (de) | 2021-03-01 | 2022-03-01 | Verfahren zur herstellung zumindest eines filaments, bedampfungsvorrichtung zur durchführung eines derartigen verfahrens und filamentproduktionsanlage mit einer derartigen bedampfungsvorrichtung |
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EP22711507.8A Pending EP4301912A1 (de) | 2021-03-01 | 2022-03-01 | Verfahren zur herstellung zumindest eines filaments, bedampfungsvorrichtung zur durchführung eines derartigen verfahrens und filamentproduktionsanlage mit einer derartigen bedampfungsvorrichtung |
Country Status (5)
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US (1) | US20240124262A1 (de) |
EP (1) | EP4301912A1 (de) |
CN (1) | CN116940722A (de) |
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WO (1) | WO2022184696A1 (de) |
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CH488844A (de) | 1967-01-13 | 1970-04-15 | Asahi Chemical Ind | Vorrichtung zur kontinuierlichen Behandlung von fadenförmigem Material |
SE403141B (sv) * | 1973-02-05 | 1978-07-31 | American Cyanamid Co | Smeltspinningsforfarande for framstellning av en akrylnitrilpolymerfiber |
US4098864A (en) * | 1976-02-18 | 1978-07-04 | The Firestone Tire & Rubber Company | Steam drawing of polyester monofilament to improve loop strength and resistance to fibrillation |
US5082611A (en) * | 1988-07-15 | 1992-01-21 | E. I. Du Pont De Nemours And Company | Process for spinning and drawing monofilaments with high tenacity and high tensile uniformity |
DE102013020471A1 (de) | 2013-12-03 | 2015-06-18 | Saurer Germany Gmbh & Co. Kg | Verfahren und Vorrichtung zur kontinuierlichen Bearbeitung eines fadenförmigen Gutes |
CN109844188B (zh) * | 2016-08-03 | 2022-02-11 | 科德沙技术纺织品股份公司 | 用于单丝纱线生产的系统及方法 |
CN206858702U (zh) * | 2017-04-06 | 2018-01-09 | 中简科技股份有限公司 | 蒸汽牵伸装置 |
CN111868315A (zh) * | 2018-03-27 | 2020-10-30 | 东丽株式会社 | 丙烯腈系纤维束的制造方法及碳纤维束的制造方法 |
CN111235650A (zh) * | 2020-03-30 | 2020-06-05 | 中国科学院宁波材料技术与工程研究所 | 一种带有内置式水箱的碳纤维原丝用蒸汽牵伸装置 |
CN213327958U (zh) * | 2020-05-21 | 2021-06-01 | 苏州汉硕纺织有限公司 | 一种涤纶纤维蒸汽牵伸装置 |
CN111578255A (zh) * | 2020-06-17 | 2020-08-25 | 威海拓展纤维有限公司 | 蒸汽热能场自动控制系统 |
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2022
- 2022-03-01 US US18/277,368 patent/US20240124262A1/en active Pending
- 2022-03-01 EP EP22711507.8A patent/EP4301912A1/de active Pending
- 2022-03-01 WO PCT/EP2022/055121 patent/WO2022184696A1/de active Application Filing
- 2022-03-01 CN CN202280018052.4A patent/CN116940722A/zh active Pending
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CN116940722A (zh) | 2023-10-24 |
WO2022184696A1 (de) | 2022-09-09 |
DE102021104890A1 (de) | 2022-09-01 |
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