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WO2016110536A1 - Procédé et dispositif de surveillance de la qualité d'une pluralité de brins de fibre filés à l'état fondu d'un câble à fibres - Google Patents

Procédé et dispositif de surveillance de la qualité d'une pluralité de brins de fibre filés à l'état fondu d'un câble à fibres Download PDF

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Publication number
WO2016110536A1
WO2016110536A1 PCT/EP2016/050205 EP2016050205W WO2016110536A1 WO 2016110536 A1 WO2016110536 A1 WO 2016110536A1 EP 2016050205 W EP2016050205 W EP 2016050205W WO 2016110536 A1 WO2016110536 A1 WO 2016110536A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
fiber strands
strands
melt
surface temperature
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.)
Ceased
Application number
PCT/EP2016/050205
Other languages
German (de)
English (en)
Inventor
Tilman Reutter
Wilhelm-Martin Callsen-Bracker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Priority to DE112016000306.4T priority Critical patent/DE112016000306A5/de
Priority to CN201680005206.0A priority patent/CN107209127B/zh
Publication of WO2016110536A1 publication Critical patent/WO2016110536A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging

Definitions

  • the invention relates to a method for quality monitoring of a multiplicity of melt-spun fiber strands of a fiber cable according to the preamble of claim 1 and to an apparatus for quality monitoring of a plurality of melt-spun fiber strands of a fiber cable in a staple fiber process according to the preamble of claim 8.
  • a generic method and a generic device for monitoring the quality of a plurality of melt-spun fiber strands of a fiber cable are known from WO 2007/073784 AI.
  • staple fibers it is common to produce a plurality of fiber strands in a melt spinning process.
  • the fiber strands are directly drawn, crimped and cut into fibers after melt spinning in a one-step process.
  • the fiber strands are laid down in cans after melt-spinning, and then drawn, crimped and cut in a fiber line as a fiber tow. Regardless of the respective work steps, a high degree of uniformity in the process sequence is desired.
  • defects in the fiber strands are often unavoidable due to, for example, a failure of a spinning device, a change of the original cans or other material defects such as, for example, unetched plasticized material accumulations in the fiber strands.
  • the surface quality of a fiber cable with a plurality of fiber strands is continuously detected.
  • a monitoring image of the surface of the fiber cable is taken by a camera system and analyzed for defects.
  • finding defects requires a great deal of image analysis in order to determine specific defects in the fiber strands.
  • Essential here are comparison samples of the surface structure of the fiber cable in order to make clear diagnoses. It is therefore an object of the invention to provide a method and an apparatus of the generic type for quality monitoring of a plurality of melt-spun fiber strands of a fiber cable such that material defects within a fiber cable or fiber bundles can be identified by simple means.
  • This object is achieved by a method in that at the fiber strands of the fiber cable, a surface temperature is detected flat or linear across the fiber cable and analyzed.
  • the object is achieved according to the invention for a device in that the monitoring device has a measuring device for measuring a surface temperature at the fiber strands.
  • the invention makes use of the insight that, during the thermal treatment of the fiber strands of a fiber cable, the material defects, such as, for example, Fiber thickenings, fiber ends, splices or unstretched material have no identical surface temperature compared to the fiber strands.
  • material thickening by accumulation of material or by unstretched fibers at the same temperature, for example by steam treatment or by a contact heating lower temperatures or, for example, by cooling higher temperatures than the fiber strands.
  • the surface temperature of the fiber strands of the fiber cable can be determined by comparisons Annormali activities in the fiber cable.
  • the surface temperature is recorded over a whole width of the fiber cable, surface or linear.
  • the method variant is preferably carried out, in which the actual values of the surface temperature measured in one or more measuring zones are compared with a mean value of the surface temperature previously determined from the actual values, and the difference values determined therefrom are used to detect them be evaluated by defects in fiber cables.
  • the actual values of the surface temperature measured in one or more measuring zones are compared with a mean value of the surface temperature previously determined from the actual values, and the difference values determined therefrom are used to detect them be evaluated by defects in fiber cables.
  • infrared rays are produced from the entire fiber surface of the fiber cable, resulting in a uniform temperature profile after detection.
  • the infrared rays are preferably detected by a thermal imaging camera and generated to form a thermal image and / or a temperature profile. For example, a thermal image can be visualized on a monitor so that an operator can immediately identify impermissible deviations.
  • the method variant is particularly advantageous in which the surface temperature is measured immediately after cooling of the melt-spun fiber strands. For example, accumulations of material within the fiber structure cause them to have a higher temperature than the fiber strands because of insufficient cooling. In that regard, such spin defects on the surface temperature of the fiber strands can be identified.
  • the fiber strands spun by a spinneret unit are monitored independently of the fiber strands of the adjacent spinneret unit.
  • the surface temperature at the melted by one of several spinneret units spun fiber strands measured.
  • a cleaning of the undersides of the spinneret units can be initiated via a process control.
  • the method variant is provided, in which the surface temperature is measured at the fiber strands guided within a fiber line.
  • the monitoring of the fiber strands is preferably carried out on the stretched fiber cable to use the thermal reaction of stretching in the identification of the defects.
  • the device according to the invention is preferably used, in which the measuring device has an infrared detector unit which is arranged at a distance from the fiber strands and whose sensors are aligned with one or more measuring zones on the fiber cable.
  • the infrared detector unit advantageously has a thermal imaging camera, so that direct integration into a fiber production plant is possible.
  • the device according to the invention is provided, in which the monitoring device is associated with a spinning device arranged upstream of the devices. It is independent whether the spinning device is continuously in contact with the treatment directly in a one-step process. is combined or whether the spinning device cooperates with a can station to the clipboard of the fiber cable. It is essential here that the spinning defects occurring during the melt spinning of the fiber strands can be identified due to material defects within the fiber strands after cooling.
  • each spinneret unit can be assigned a measuring device to monitor the cooled after extrusion fiber strands.
  • the development of the device according to the invention is provided in which the monitoring device is assigned to one of the devices of the fiber line.
  • the defects in the fiber cable which occur by an accumulation of plasticized material in the fiber cable, can lead to damage in plant components such as a crimping device.
  • plastic parts must be removed from the fiber composite of the fiber cable.
  • the device s variant is suitable, in which the monitoring device is coupled to a process control unit, by means of which a guide speed of the fiber cable can be changed.
  • the melt throughput at the spinneret units can be changed via the process control unit.
  • individual spinning pumps can be switched off in order to carry out a cleaning on one of the spinneret units.
  • the monitoring device is coupled to a signal transmitter, by means of which an operator can be generated against a signal, for example a light signal or a sound signal.
  • a signal for example a light signal or a sound signal.
  • Fig. 1 shows schematically an overall view of a plant for the production of staple fibers
  • Fig. 2 shows schematically a view of an embodiment of the device according to the invention for quality control
  • Fig. 3 shows schematically a plan view of a fiber cable
  • Fig. 4 shows schematically a view of another embodiment of the device according to the invention in a spinning device
  • Fig. 5 shows schematically a view of a further embodiment of the device according to the invention in a spinning device
  • FIG. 1 schematically shows a plant for the production of synthetic staple fibers from a fiber cable.
  • the plant has a treatment device 3 for receiving a fiber cable for treatment and fragmentation.
  • the treatment device 3 is referred to in professional circles as a so-called fiber line to produce staple fibers continuously from a fiber cable.
  • the treatment device 3 shown in Fig. 1 can thus be combined with a melt spinning device 1 or optionally with a can station 2.
  • the treatment device 3 is therefore suitable both for a one-step process and for a two-step process for the production of staple fibers.
  • the melt spinning device 1 and the can station 2 is shown symbolically and not further explained at this point.
  • the treatment device 3 comprises a plurality of drafting units 4 and 5, a fixing device 12, a laying device 14, a crimping device 15, a belt dryer 16, a tensioning device 17 and a cutting device 18.
  • the device is arranged one behind the other to form a fiber flow ,
  • the drafting units 4 and 5 have a plurality of drafting rollers 4.1 and 5.1 for guiding a plurality of melt-spun fiber strands in a band-shaped arrangement as a fiber cable.
  • the fiber strands can be deducted directly from the melt spinning device 1 or alternatively withdrawn from several cans of the can station 2.
  • the fiber strands are extruded into a plurality of spinning stations of the melt spinning device 1 from a polymer melt and withdrawn after cooling and brought together as a band-shaped arrangement side by side to the fiber cable.
  • the tow cables stored in each case in a jug are drawn off to several from several jugs and guided in band-like fashion alongside one another as the fiber cable.
  • the fiber cable between the drafting units 4 and 5 is stretched.
  • the drafting rollers 4.1 and 5.1 of the drafting units 4 and 5 are driven for this purpose at differential speed.
  • the rollers of the drafting 4 or the drafting 5 can be driven with individual drives or with group drives.
  • the draw rolls 4.1 and 5.1 are preferably arranged cantilevered side by side and one below the other, so that an S-shaped fiber run of the fiber tow adjoins the draw rolls 4.1 and 5.1.
  • the drafting rollers 4.1 and 5.1 of the drafting units 4 and 5 can be heated or unheated.
  • the drafting device 5 is followed by a fixing device 12, which has a plurality of heated fixing rollers 13.
  • the fixing rollers 13 are also arranged on a roller carrier, wherein the roller shells are kept free cantilevered.
  • the drive of the fixing rollers 13 can be done via individual drives or group drives.
  • the laying device 14 has for this purpose a plurality of laying rollers 25.
  • the crimping device 15, which follows the laying device 14, in this embodiment has two crimping rollers 26 which cooperate with a stuffer box 27.
  • a conveyor belt 28 of a belt dryer 16 is arranged through which the crimped fiber strands are passed through the belt dryer 16 for drying.
  • a train actuator 17 and a cutter 18 are provided to continuously cut the fiber strands into staple fibers having a predetermined fiber length.
  • the treatment device 3 has a monitoring device 6, which is arranged in the fiber run between the drafting 5 and the fixing device 12 in this embodiment.
  • a monitoring device 6 which is arranged in the fiber run between the drafting 5 and the fixing device 12 in this embodiment.
  • FIG. 2 shows a section of the treatment device 3 with the monitoring device 6 arranged between the drafting device 5 and the fixing device 12.
  • the following description applies to both figures insofar as no explicit reference is made to one of the figures.
  • the monitoring device 6 is designed as a measuring device for measuring a surface temperature of the fiber strands.
  • the measuring device 7 an infrared detector unit 7.1.
  • the infrared detector unit 7.1 includes an array of sensors that are directed to one or more measuring zones on the surface of the fiber cable. The sensors are able to absorb the radiation emission originating from fiber strands and from this determine the surface temperature.
  • an infrared detector unit so-called pyrometer or a thermal imaging camera can be used.
  • a thermal imaging camera When using a thermal imaging camera, already visualized fiber surfaces of the fiber cable can be displayed with a measured temperature profile. Essential here is to obtain localized irregularities in the fiber path of the fiber cable based on the surface temperature measurement.
  • the measuring device 7 is coupled directly to a process control device 8.
  • the process control device 8 is connected to the drives and actuators of the device parts within the treatment device 3 in order to control the overall process for stretching, curling and cutting the fibers.
  • the direct connection between the monitoring device 6 and the process control device 8 has the advantage that process changes can be carried out directly as a function of the detected defects. In particular, thick spots due to unstretched amorphous material within the fiber cable can lead to damage to the crimping device or to the cutting device.
  • the monitoring device 6 has a signal transmitter 11, which is coupled to the measuring device 7.
  • the irregularities detected on the surface of the fiber cable can be directly made into a visual signal so that an operator can make any necessary changes to the process.
  • the fiber strands of the fiber cable are guided side by side in a band-shaped arrangement.
  • a schematic representation of a fiber cable is shown in Fig. 3 in a plan view.
  • the fiber cable is designated by the reference numeral 9 and the fiber strands by the reference numeral 10.
  • the fiber strands 10 are substantially parallel next to each other and together form the fiber cable.
  • a measuring zone 19 is shown in dashed lines in FIG. 3 schematically.
  • the measuring zone 19 forms the surface area on the fiber cable 9 whose radiation emission is detected by the infrared detector device 7.1.
  • With a uniform arrangement and distribution of the fiber strands within the fiber cable 9 results in a substantially uniform surface temperature in all areas of the measuring zone. In that regard, the quality of the fiber cable 9 without complaint.
  • temperature differences in the measuring zone 19 are detected.
  • a defect 20 is shown schematically as a thick spot. Such thick places arise when fiber materials clump together and are not stretched.
  • the accumulation of material of the defect 20 leads to a temperature difference at the surface of the fiber cable 9.
  • the defect shows significantly lower temperatures than the other fiber strands.
  • Locate temperatures By means of such a temperature analysis can advantageously all common defects such as splices, cable ends, unstretched material (plastic), missing cable parts (winding), migratory cable layers, thin or thick places are detected.
  • a manual intervention is possible, so that, for example, impurities can be selectively removed by thick spots or plasticized material from the fiber cable.
  • a measuring zone for the linear detection of the surface temperature over the entire width of the fiber cable is shown.
  • the temperature differences in the direction of fiber travel can advantageously also be used for the analysis.
  • the method according to the invention is therefore particularly suitable for improving the quality of the production of staple fibers. Due to the non-contact temperature measurement of the fiber surface and the subsequent analysis, the device according to the invention can be advantageously integrated into already installed systems.
  • the monitoring device 6 is the last drafting 5 downstream.
  • This position of the monitoring device within the fiber line is exemplary. However, this position has the particular advantage that the kinetic energy released during the hiding of the fiber strands can be used directly to detect defects in the fiber structure of the fiber cable. In that regard, missing pieces of cable or cable ends can be identified solely from the stretching energy.
  • FIG. 4 a further embodiment of a device according to the invention for monitoring the quality of fiber strands is shown schematically.
  • the embodiment is substantially identical to the aforementioned embodiment of FIG. 2, wherein the monitoring device 6 is assigned directly to a spinning device 1.
  • the device according to the invention is used in this embodiment, for spider defects in the melt spinning the fiber strands to identify and display.
  • the spinning device 1 shown in FIG. 4 has a spinning beam 30, on the underside of which a plurality of spinning nozzle units 31.1 to 31.3 are arranged.
  • the number of spinneret units is only exemplary. It depends essentially on the capacity of the staple fiber plant.
  • Each of the spinneret units 31.1 to 31.3 is in each case assigned a spinning pump 32.1 to 32.3.
  • the spin pumps 32.1 to 32.3 are connected via distributor lines 35 to an extruder 34 or alternatively directly to a polymerization plant.
  • a polymer such as a polyester or polypropylene is melted.
  • the polymer melt supplied to the spinning pumps 32.1 to 32.3 is fed under pressure to the spinneret units 31.1 to 31.3, which have a multiplicity of nozzle openings on their underside in order to extrude the fiber strands.
  • the spinneret units 31.1 to 31.3 have for this purpose an annular arrangement of the nozzle openings.
  • blower candles 36.1 to 36.3 are arranged which generate a cooling air flow flowing radially from the inside to the outside.
  • the cooling air flow penetrates the crowd of fiber strands from the inside to the outside and thus leads to cooling and solidification of the fiber strands.
  • the spinneret units 31.1 to 31.3 are provided below the blow candles.
  • the guide rollers 37.1 to 37.3 cooperate with a take-off unit 33 to merge the fiber strands into a fiber cable 9.
  • the withdrawal unit 33 can interact directly with a fiber line or with a can tray station.
  • the monitoring device 6 is arranged in a fiber section of the fiber cable 9 between the withdrawal unit 33 and a last spinneret unit 31.3.
  • the monitoring device 6 is designed identically to the embodiment according to FIG. 2 and detects a surface temperature of the fiber strands on the fiber cable 9.
  • the measurement of the surface temperature at the fiber strands is analogous to the aforementioned embodiment, with possible thick spots in the fiber strands, which are caused for example by melt droplets, have a higher surface temperature after cooling of the fiber strands due to an accumulation of material. In order for such spider errors can be detected early.
  • the monitoring device 6 is connected to the process control unit 8, the process control unit 8 being coupled to the spinning pumps 32.1 to 32.3 and to the extruder 34. Insofar, process changes can be carried out depending on the spider errors.
  • the process control unit 8 is coupled to the subsequent devices of a fiber line or a can tray, so that the shrinkage of the defect in the fiber cable in the fiber line or in a can tray can be taken into account.
  • FIG. 1 Another embodiment of the device according to the invention is shown in FIG. The embodiment is integrated in a spinning device 1, wherein the spinning device 1 is identical to the embodiment of FIG. 4. In that regard, the facilities of the spinning device 1 are not further explained at this point and taken to the above description reference.
  • the monitoring device 6 shown in FIG. 5 has a plurality of measuring devices 7, which are respectively assigned to the fiber strands, which were extruded through one of the spinneret units 31.1, 31.2 and 31.3.
  • the monitoring device 6 consists of three measuring devices 7, which are of identical design and each having an infrared electrical unit 7.1 have.
  • three thermal imaging cameras can be used to monitor each of the freshly extruded fiber strands.
  • the monitoring device 6 is also coupled to the process control unit 6 in this case. Due to the separate monitoring of the freshly extruded fiber strands, the spinning defects occurring in the fiber strands can be assigned directly to the relevant spinneret unit 31.1 to 31.3.
  • the respectively relevant spinning pump 32.1, 32.2 or 32.3 can be switched off via the process control unit 8. Via an additional signal transmitter, it is then possible to indicate to an operator the respective upcoming cleaning cycle of the spinneret.
  • the device according to the invention and the method according to the invention are therefore particularly suitable for monitoring a complete process for producing staple fibers.
  • a plurality of monitoring devices can be provided in a so-called single-stage process in order to monitor the extrusion of the fiber strands in the spinning device and the treatment of the fiber strands in the fiber line.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un procédé et un dispositif de surveillance de la qualité d'une pluralité de brins de fibre filés à l'état fondu d'un câble à fibres dans un processus de fibre discontinue. Les brins de fibre du câble à fibres sont ici guidés en forme de bande parallèlement les uns aux autres, puis vrillés ensemble et coupés en fibres discontinues. Au moins une propriété de la surface du câble à fibres est détectée et analysée avant la coupe. Selon l'invention, pour découvrir de possibles anomalies à l'intérieur du câble à fibres, une température de surface est captée et analysée dans le plan ou linéairement de manière transversale par rapport au câble à fibres au niveau des brins de fibre du câble à fibres.
PCT/EP2016/050205 2015-01-09 2016-01-07 Procédé et dispositif de surveillance de la qualité d'une pluralité de brins de fibre filés à l'état fondu d'un câble à fibres Ceased WO2016110536A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112016000306.4T DE112016000306A5 (de) 2015-01-09 2016-01-07 Verfahren und Vorrichtung zur Qualitätsüberwachung einer Vielzahl von schmelzgesponnenen Fasersträngen eines Faserkabels
CN201680005206.0A CN107209127B (zh) 2015-01-09 2016-01-07 对丝束的多个熔纺的纤维条子进行质量监控的方法和设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015000320 2015-01-09
DE102015000320.8 2015-01-09

Publications (1)

Publication Number Publication Date
WO2016110536A1 true WO2016110536A1 (fr) 2016-07-14

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PCT/EP2016/050205 Ceased WO2016110536A1 (fr) 2015-01-09 2016-01-07 Procédé et dispositif de surveillance de la qualité d'une pluralité de brins de fibre filés à l'état fondu d'un câble à fibres

Country Status (3)

Country Link
CN (1) CN107209127B (fr)
DE (1) DE112016000306A5 (fr)
WO (1) WO2016110536A1 (fr)

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RU2700360C2 (ru) * 2016-08-18 2019-09-16 Сикора Аг Способ определения температуры нити
CN113811644A (zh) * 2019-05-23 2021-12-17 欧瑞康纺织有限及两合公司 用于制造合成短纤维的熔纺方法和熔纺设备
CN116615584A (zh) * 2020-11-25 2023-08-18 欧瑞康纺织有限及两合公司 用于监视机器设备的方法和生产合成短纤维的机器设备

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CN110992343A (zh) * 2019-10-18 2020-04-10 中国移动通信集团浙江有限公司嘉兴分公司 一种基于机器人的飘丝飘杂视检方法、存储介质及电子设备
CN113758579B (zh) * 2021-09-26 2024-01-09 中国纺织科学研究院有限公司 一种用于检测纺丝组件温度的方法及纺丝设备
CN113899574B (zh) * 2021-09-26 2024-11-15 中国纺织科学研究院有限公司 一种冷却吹风设备的故障检测方法及纺丝设备
CN117431646A (zh) * 2023-09-11 2024-01-23 无锡金通高纤股份有限公司 防止细旦单丝条干粗细不均匀的方法

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EP0046571A2 (fr) * 1980-08-21 1982-03-03 Badische Corporation Procédé pour la fabrication de fibres courtes directement à partir de la masse polymérisée
US4415926A (en) * 1982-05-28 1983-11-15 Eastman Kodak Company Inspection of elongated material
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RU2700360C2 (ru) * 2016-08-18 2019-09-16 Сикора Аг Способ определения температуры нити
CN113811644A (zh) * 2019-05-23 2021-12-17 欧瑞康纺织有限及两合公司 用于制造合成短纤维的熔纺方法和熔纺设备
CN113811644B (zh) * 2019-05-23 2023-12-19 欧瑞康纺织有限及两合公司 用于制造合成短纤维的熔纺方法和熔纺设备
CN116615584A (zh) * 2020-11-25 2023-08-18 欧瑞康纺织有限及两合公司 用于监视机器设备的方法和生产合成短纤维的机器设备

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