EP3911785A1 - Hybrid-garn sowie vorrichtung und verfahren zur herstellung eines hybridgarns - Google Patents
Hybrid-garn sowie vorrichtung und verfahren zur herstellung eines hybridgarnsInfo
- Publication number
- EP3911785A1 EP3911785A1 EP20702517.2A EP20702517A EP3911785A1 EP 3911785 A1 EP3911785 A1 EP 3911785A1 EP 20702517 A EP20702517 A EP 20702517A EP 3911785 A1 EP3911785 A1 EP 3911785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- continuous
- hybrid
- continuous yarn
- spread
- 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- Withdrawn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
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/18—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/24—Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
- D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/18—Separating or spreading
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/04—Heat-responsive characteristics
- D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
Definitions
- the invention relates to a hybrid yarn made of thermoplastic fibers and reinforcing fibers and a method and an apparatus for its production.
- Hybrid yarns in which yarns made of thermoplastic fibers are combined with reinforcing fibers are known from the prior art.
- Yarns in the form of continuous filaments for example made of polyester, polyamide or polyethylene, are used.
- filaments made of glass fibers or carbon fibers (for example aramid) are used as reinforcing fibers.
- DE 10 2007 028 373 A1 describes a hybrid yarn in the production of which the individual components are brought together and then mixed by an air texturing method. This is to achieve the most homogeneous possible distribution of the individual filament types.
- EP 0 599 695 A1 discloses a method for producing hybrid roving, in which the various continuous filaments are spun together in bundles in the form of a web.
- thermoplastic fibers The mixing of the reinforcing fibers and thermoplastic fibers is realized here by a Venturi nozzle, which throws the filaments in a web shape onto the glass fiber.
- a Venturi nozzle Another process for producing a hybrid yarn or hybrid roving is disclosed by DE 10 2011 010 592 A1. Individual rovings are formed from a few individual filaments of the different components, which are then combined in a further process step and bundled to form a hybrid yarn.
- JP 2015 067 926 A discloses the production of a hybrid yarn from a reinforcing fiber and a thermoplastic synthetic fiber.
- the plastic fiber is subjected to an increase in temperature and subsequent false twist before it is brought together with the reinforcing fiber.
- the hybrid yarn is formed using a pneumatic interlacing nozzle and wound onto a spool.
- a disadvantage of the known hybrid yarns produced by the above method is that parts of the reinforcing yarn are damaged during manufacture and thus weakened become.
- the connection of the thermoplastic yarns with the reinforcing fibers to form a hybrid yarn is, however, only achieved by the process step causing damage.
- This process step required for yarn formation includes, for example, texturing, spinning or rolling.
- the reinforcing fibers used are made as fine as possible, whereby mechanical or fluidic yarn formation or intermixing results in damage to the reinforcing fibers and thus to the hybrid yarn.
- the object of the invention is thus to drive a hybrid yarn and its production process and to provide the device necessary for this, which avoids a process step to form the hybrid yarn after the individual components have additionally combined the individual filaments or fibers.
- the object of the invention is thus to drive a hybrid yarn and its production process and to provide the device necessary for this, which avoids a process step to form the hybrid yarn after the individual components have additionally combined the individual filaments or fibers.
- the occurrence of fiber or filament damage can be counteracted.
- a novel hybrid yarn is proposed from at least two continuous yarns, a first continuous yarn is a multifilament yarn made of reinforcing fibers and a second continuous yarn is a crimped yarn made of thermoplastic fibers in the form of a parallel thread sheet.
- the parallel sheet is ge forms by arranging a plurality of crimped filaments next to each other in one plane.
- An endless thread is to be understood as a collection of a plurality of endless filaments.
- the second continuous yarn is a crimped (textured) yarn, it has the property of an irregularly formed surface, with the texturing (crimping) also allowing the textured fibers to be displaced transversely to the grain direction.
- the first continuous yarn is advantageously a multifilament yarn made of carbon with a slight undulation. There is a slight undulation if only a small part of the filaments present in the continuous yarn is not arranged parallel to a yarn running direction. Crosswise filaments can lead to knots and weaken the continuous filament.
- other high-quality reinforcing fibers are also conceivable, for example aramid fibers, nylon fibers, glass fibers or polymethyl methacrylate fibers.
- Continuous yarns of this type are known from the prior art.
- the first continuous yarn preferably consists of 6 ⁇ 00 to 60 ⁇ 00 filaments with a tensile strength of at least 500 kg / mm 2.
- the first continuous yarn preferably consists of 12 ⁇ 00 to 24 ⁇ 00 filaments, this number of filaments has been found to be particularly suitable for the production of the hybrid yarn with the described method.
- the filaments are arranged in such a way that a flat, continuous filament yarn results (for example Torayca T700 from the manufacturer Toray).
- Such continuous yarns are very finely worked, so that there is a specific weight of 400 grams to 8 ⁇ 00 grams or 800 grams to T600 grams per 1 ⁇ 00 meters.
- the second continuous yarn is advantageously made of a polyethylene (PE), a polypropylene (PP), a polyamide (PA), a polyester (PES) or a polyaryl ether ketone (for example polyether ether ketone, PEEK) and has a titer of 20 to 500 dtex on, whereby this information relates to a single continuous thread from the family of threads, which in its entirety represents the second continuous thread.
- the use of thermoplastic materials has proven to be advantageous.
- the second continuous yarn is preferably a family of threads made up of a plurality of core yarns, the core yarns consisting of an uncrimped core fiber and of crimped wrapping fibers and the core fibers made of the same material as the wrapping fibers.
- Such crimped or textured yarns are also known from the prior art and are available in a stretched state wound on bobbins. The production of such yarns for use as second continuous yarns with an air texturing process has proven successful.
- a second continuous yarn with a group of 10 to 200 continuous threads is preferably contained in a hybrid yarn with a first continuous yarn consisting of 12-00 filaments.
- the exact size of the second continuous yarn depends on the material used and the selected yarn size. It has been shown, however, that a group of threads with fewer than 10 continuous threads lead to such a small distribution within the hybrid yarn that the hybrid yarn cannot be held together properly without a further processing step such as, for example, the air texturing known from the prior art is. However, this in turn would lead to fiber damage and weakening of the hybrid yarn.
- a unwinding device for unwinding a first continuous yarn from a bobbin, the unwinding device being provided with a brake
- a relief spreader to spread the first continuous yarn in the form of a compact band
- a flow spreader arranged between the pairs of pinch rollers to form a spread first continuous yarn
- a laying roller for depositing the spread first continuous yarn and the thread sheet of the second continuous yarn, the thread sheet being placed over the spread continuous yarn to form a thread sheet of the hybrid yarn;
- At least two deflections with an arrangement of the deflections wrapping the laying roller through the spread first continuous yarn and the yarn sheet of the second continuous yarn by more than 30 degrees;
- a winding device for the hybrid yarn to form a bobbin for the hybrid yarn to form a bobbin.
- the first continuous yarn which is in the form of a tape wound on a spool, is drawn off from the spool held in a unwinding device with the aid of the first pair of pinch rollers. After leaving the bobbin, the first continuous yarn passes through a tension sensor and subsequently through a relief spreader and spreading rollers. The current tension of the first continuous yarn is measured with the help of the tension sensor.
- the unwinding device is equipped with a brake, on which a control acts and sets a predetermined target value for the yarn take-off. A tight or regulated tension in the first continuous yarn is a prerequisite for an optimal spreading process.
- a displacement of a deflection roller in a direction transverse to the transport direction of the fila elements of the first continuous yarn is introduced with low amplitude and high frequency.
- the continuous yarn is lifted out of the transport path by the deflecting roller, and the continuous yarn is loaded and relieved in rapid, repetitive alignment, whereby the individual filaments of the first continuous yarn are detached from one another and drawn out in width.
- a preparation film or protective lacquer which may be present on the first continuous filament is loosened, so that it falls from the continuous filaments in the subsequent spreading rollers due to a deflection with a small radius.
- Relief spreaders as well as the spreading rollers used are known from the prior art and are widely used in the processing of multifilament yarns.
- the first pair of pinch rollers is followed by a second pair of pinch rollers, a flow spreader being arranged between the pair of pinch rollers.
- the two pairs of pinch rollers are motor-driven and serve to unwind and convey the first continuous yarn.
- the first pair of pinch rollers pulls the first continuous yarn off the bobbin and subsequently through the relief spreader and the spreading rollers.
- the second pair of pinch rollers regulates the immersion depth of the filaments in the flow spreader.
- the flow spreader is arranged between the first and the second pair of pinch rollers.
- the first continuous yarn is drawn between two support rolls by an air flow.
- the air flow is usually guided from top to bottom through the filaments of the first continuous yarn.
- the air flow is generated by a vacuum source that draws down the air flowing through the filaments.
- the flow causes the filaments to be further separated and any adhering components from protective layers or sizing to be sucked off. During this process, the filaments are pulled down. To prevent them from being drawn too deep into the flow spreader and thereby being damaged, the filaments are pulled off by the driven second pair of pinch rollers.
- the flow spreader can also be supplemented by a corresponding sensor, which causes a change in the speed of the second pair of pinch rollers when the fila penetrates the flow spreader too deeply or too little.
- a plurality of bobbins with crimped continuous filaments are provided on a bobbin frame, a so-called creel, to form the second continuous yarn.
- the number of bobbins corresponds to the number of continuous threads which are to form the hybrid yarn together with the first continuous yarn.
- the continuous threads are drawn off the bobbins and passed over a comb.
- the individual continuous filaments are arranged closely next to one another and thus form the thread bundle of the second continuous filament.
- the continuous filaments can be placed very close to one another without the individual continuous filaments crossing each other in their further course.
- the spread first continuous yarn and the thread sheet of the second continuous yarn are guided on a laying roller.
- the thread sheet of the second continuous yarn is placed on the surface of the spread first continuous yarn.
- the two components have the same speed.
- the laying roller is usually driven. At least two deflections are arranged after the laying roller, the first deflection being arranged in relation to the laying roller in such a way that there is a minimal looping of the laying roller of more than 30 angular degrees. This looping of the laying roller through the components of the hybrid yarn placed on top of one another causes the individual filaments of the first and second continuous yarns to be nestled together.
- the laying roller and the subsequent deflections contribute to the formation of a thread family of the hybrid yarn.
- the deflections can be formed from freely rotating rollers, standing guide rods or with the help of air currents.
- the pretensions with which the first continuous yarn and the thread sheet of the second continuous yarn are placed on the laying roller are matched to one another, so that there are no or only insignificant deformations due to the tension conditions for the subsequent winding of the hybrid yarn formed.
- the thread group of the hybrid yarn is guided into a pair of pressure rollers.
- the pair of pressure rollers comprises a driven lower roller and an upper roller with an elastic surface.
- the top roller is pressed against the bottom roller by an actuator.
- Pneumatic or hydraulic pressure cylinders can be used as actuators.
- Spring-loaded or weight-loaded actuators are also conceivable.
- the pressure acting on the thread sheet of the hybrid yarn between the upper roller and the lower roller depends on the materials used for the hybrid yarn, but is typically 200 to 500 Who 2 .
- the pair of pressure rollers serves on the one hand as a conveyor drive for the yarn sheet of the hybrid yarn and for pressing the inserted yarn sheet of the hybrid yarn.
- the hybrid yarn After pressing, the hybrid yarn is wound into a bobbin in a winding device.
- Known Aufwindevorrichtun conditions are used from spinning technology.
- a heat path for crosslinking the continuous yarns is provided in front of the winding device.
- individual filaments of the second continuous yarn which partially protrude from the yarn structure due to the crimp as individual filaments, are melted on the surface. This melting of the texture leads to a connection between the second continuous filaments and thus to a further improved binding between the filaments of the first continuous yarn and the second continuous yarn.
- the comb is preferably adjustable to adjust an arrangement of the individual second continuous threads with respect to one another and with respect to the spread first continuous yarn.
- a mutual adjustment relates to an adjustment of individual comb widths of the comb, which results in an uneven or arranged in a certain pattern of the continuous threads of the second continuous yarn.
- the thread sheet which is formed from the second filaments can consist of filaments arranged in a uniform manner next to one another with an identical spacing. By mutually adjusting the comb, the endless filaments can be lined up next to one another with different distances. An adjustment of the comb in relation to the spread first continuous yarn causes a change in a position of the entire comb.
- the family of threads of the second continuous yarn formed from the continuous threads can be variably aligned with the family of threads of the first continuous yarn.
- the continuous filaments of the second filament yarn arranged on the side edge can be guided more densely, that is to say with a smaller distance, than the filaments arranged centrally in the thread sheet.
- the adjustability of the comb also means a simple replacement of the comb. The use of different different combs and a corresponding adjustment of their position a variety of blends of the first with the second continuous yarn can be achieved.
- two creels are advantageously provided for covering the spread first continuous yarn on the laying roller, each with a thread sheet of the second end loose yarn from an upper and a lower side.
- the individual continuous threads are passed from the bobbins through a comb and arranged in parallel on the laying roller.
- two or more flow spreaders connected in series are advantageously arranged between the first pair of pinch rollers and the second pair of pinch rollers.
- a spray head for applying an additive and a subsequent heating section in front of the winding device are provided.
- Powders which are sprayed onto the hybrid yarn are preferably used as additives.
- the powder used is preferably made of the same material as the second continuous yarn and has a grain size of 20 pm to 500 pm, preferably the grain size is 100 pm.
- different materials such as polyester can also be used for the material of the second continuous yarn.
- the first continuous yarn is fed as a spread first continuous yarn to a second pair of pinch rollers via a flow spreader connected to a vacuum source;
- the hybrid yarn is preferably passed through a thermal stretch after the pressing and before the winding. It is also advantageous if an optimization of a cross-linking of the first continuous yarn and the second continuous yarn is carried out by regulating a thread tension of the thread family of the second continuous yarn. Since the second continuous yarn is a more or less elastic yarn due to the choice of material or the design of a core yarn, the effect of the crosslinking with the filaments of the first continuous yarn can be achieved by appropriate tensioning of the second continuous yarn. loose yarns are changed. It is important to ensure that the thread sheet is not biased in such a way that this causes the hybrid yarn to deform.
- the first continuous yarn is preferably passed into a second flow spreader after passing through a first flow spreader before reaching the second pair of pinch rollers. This results in an improvement and a more even spread.
- the hybrid yarn is advantageously sprayed with an additive in a spray head and then passes through a heating section.
- the subsequent heating of the hybrid yarn sprinkled with the powder melts the individual grains of the powder and bakes them with the fibers of the second continuous yarn. This process improves the adhesion of the reinforcing fibers to the fibers of the second continuous yarn and creates a particularly dimensionally stable hybrid yarn for the use of the hybrid yarn in subsequent processing processes.
- a group of threads of the second continuous yarn is placed on the laying roller on both sides of the first spreading yarn.
- Figure 1 Schematic representation of a first embodiment of the method according to the invention
- FIG. 2 Schematic representation of a second embodiment of the method according to the invention.
- Figure 3 Schematic representation of a third embodiment of the method according to the invention.
- FIG. 1 shows a schematic representation of the method for producing the hybrid yarn in a first embodiment.
- a first continuous yarn 1 is from one Coil 3 unwound, the coil 3 rotates in the direction of the arrow.
- the first continuous yarn 1, which is a reinforcing yarn in the form of a band consisting of a plurality of filaments, is guided by a tension sensor 5 following the bobbin 3.
- the tension sensor 5 By the tension sensor 5, the tension in the first continuous yarn 1 is measured and acted on a control on a brake 4 of the bobbin 3, so that the first continuous yarn 1 is unwound with a constant tension from the bobbin 3.
- the first continuous yarn 1 passes through a relief spreader 6 and subsequent spreading rollers 7 and then arrives in a first pair of pinch rollers 8.
- the first pair of pinch rollers 8 is the actual conveying member which unwinds the first continuous yarn 1 from the bobbin 3 and through the tension sensor 5, the relaxation spreader 6 and the spreading rollers 7 pulls.
- the first continuous yarn 1 is guided to a second pair of pinch rollers 9 via a flow spreader 10.
- the second pair of clamp rollers 9 serves to determine the immersion depth of the first continuous yarn 1 in the flow spreader 10.
- the first continuous yarn 1 is passed through an air flow which is generated with the aid of a vacuum source 11.
- the air flow is guided through the band-shaped first continuous yarn 1 from top to bottom. This has the effect that the first continuous yarn 1, which has already been partially spread by the relief spreader 6 and the spreading rollers 7, is spread further and is at least partially separated into its filaments. Existing foreign parts or layers broken open by the previous spreads or arbitrations are extracted by the arrangement of the air flow.
- the now spread first continuous yarn 12 is guided to a laying roller 17.
- a large number of continuous threads are drawn off from a large number of bobbins 14, which are arranged in a so-called creel 13, and are arranged via a comb 15 to form a sheet 16 of the second continuous yarn 2.
- the thread sheet 16 of the second continuous yarn 2 is then placed on the laying roller 17 and thus on the ge spread first continuous yarn 12 respectively on and next to or between the filaments of the spread first continuous yarn 12.
- the filaments of the spread first continuous yarn 12 with the thread sheet 16 of the second Continuous yarn 2 folded into a sheet 19 of a hybrid yarn.
- the thread family 19 of the hybrid yarn is deflected via two deflections 18 following the laying roller 17 such that the laying roller 17 is wrapped minimally.
- the thread family 19 of the hybrid yarn then reaches a pair of pressure rollers 20.
- the pair of pressure rollers 20 consists of a lower pressure roller 21 and an upper pressure roller 22, the upper pressure roller 22 being equipped with an actuator for adjusting the pressure.
- the pair of threads 16 of the second continuous yarn 2 and the spread first continuous yarn 12 are pulled over the laying roller 17 by the pair of pressure rollers 20.
- the actual hybrid yarn 23 is formed from the thread sheet 19 of the hybrid yarn, which is then wound up into a bobbin 26 in a winding device 24.
- the bobbin 26 is rotated in the direction of the arrow by a drive 25 for winding the hybrid yarn 23.
- Figure 2 shows a schematic representation of the method for producing the hybrid yarn in a second embodiment.
- the second embodiment differs from the first embodiment in a further process step for hybrid yarn formation after passing through the pressure roller pair 20 and before the winding device 24.
- the formation of the thread sheet 19 of the hybrid yarn starting from the first continuous yarn 1 taken from a bobbin 3 and from that of Bobbins 14 of the continuous filaments of the second continuous yarn 2 are identical to the embodiment according to FIG. 1.
- the hybrid yarn 23 is sprayed with an additive 29.
- the powdery additive 29 is applied with a spray head 27 to the surface of the hybrid yarn 23.
- the hybrid yarn 23 is then passed through a heating section 28 to the winding device 24. In the heating section 28, the additive 29 applied is melted and brings about a connection of the continuous filaments of the second continuous yarn 2 within the hybrid yarn 23. This improves the cohesion of the hybrid yarn 23 during subsequent processing.
- a further feed of a thread sheet 16 of the second continuous filament 2 provided.
- the method for producing the hybrid yarn 23 in the third embodiment is identical in the execution of the method steps and the arrangement of the individual devices with the first embodiment according to FIG. 1 with the exception of the second creel 13 introduced.
- a second creel 13 with spools 14 arranged therein a second sheet 16 of the second continuous yarn 2 can be formed over a second comb 15 and applied to the lay roller 17.
- This second thread sheet 16 is guided onto the laying roller 17 on a side of the spread first continuous yarn 12 opposite the first thread sheet 16.
- the spread first continuous yarn 12 is thus introduced between the two sets of threads 16.
- By adjusting the combs 15, an optimal distribution of the second continuous yarns 2 over the width of the spread first continuous yarn 12 can be achieved.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00059/19A CH715759A1 (de) | 2019-01-18 | 2019-01-18 | Hybrid-Garn sowie Vorrichtung und Verfahren zur Herstellung eines Hybridgarns. |
| PCT/IB2020/050329 WO2020148691A1 (de) | 2019-01-18 | 2020-01-16 | Hybrid-garn sowie vorrichtung und verfahren zur herstellung eines hybridgarns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3911785A1 true EP3911785A1 (de) | 2021-11-24 |
Family
ID=69374333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20702517.2A Withdrawn EP3911785A1 (de) | 2019-01-18 | 2020-01-16 | Hybrid-garn sowie vorrichtung und verfahren zur herstellung eines hybridgarns |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11846045B2 (de) |
| EP (1) | EP3911785A1 (de) |
| CH (1) | CH715759A1 (de) |
| WO (1) | WO2020148691A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116714141B (zh) * | 2023-05-30 | 2025-12-09 | 常州市新创智能科技有限公司 | 一种碳纤维定型展纤片的制做装置及方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2252946A1 (de) * | 1972-10-28 | 1974-05-02 | Bayer Ag | Auftrennverfahren vielfach-gewickelter monofiler und multifiler faeden |
| GB1602089A (en) * | 1977-06-09 | 1981-11-04 | Teijin Seiki Co Ltd | Bulky yarn producing apparatus |
| US5000807A (en) * | 1987-03-03 | 1991-03-19 | Concordia Mfg. Co., Inc. | Apparatus and method for commingling continuous multifilament yarns |
| JPH04183729A (ja) * | 1990-11-19 | 1992-06-30 | Toyobo Co Ltd | 熱可塑性コンポジット用成形材料 |
| DE4243465A1 (en) | 1991-12-28 | 1993-07-01 | Basf Ag | Hybrid yarn with polyamide and reinforcing fibres - has 5-20 micron polyamide filaments to give greater strength fabrics and consolidated composites |
| FR2698038B1 (fr) | 1992-11-19 | 1995-01-27 | Vetrotex France Sa | Procédé et dispositif de formation d'un fil composite. |
| US6216431B1 (en) * | 1992-11-25 | 2001-04-17 | World Fibers, Inc. | Composite yarn with thermoplastic liquid component |
| US5355567A (en) * | 1992-12-18 | 1994-10-18 | Hoechst Celanese Corporation | Process for preparing engineered fiber blend |
| FR2815046B1 (fr) * | 2000-10-11 | 2003-01-10 | Vetrotex France Sa | Procede et dispositif de production d'un fil composite |
| JP4740131B2 (ja) * | 2003-07-08 | 2011-08-03 | 福井県 | 繊維束の開繊方法と、その方法に使用する装置 |
| JP2006291377A (ja) * | 2005-04-07 | 2006-10-26 | Teijin Techno Products Ltd | 熱可塑性樹脂強化用炭素繊維ストランド |
| FR2899243B1 (fr) | 2006-03-30 | 2008-05-16 | Saint Gobain Vetrotex | Procede et dispositif de fabrication d'un fil composite |
| DE102007028373B4 (de) | 2007-06-11 | 2012-12-20 | Technische Universität Dresden | Faserverbundwerkstoff und Verfahren zur Herstellung von Faserverbundwerkstoffen |
| DE102011010592A1 (de) | 2011-02-08 | 2012-08-09 | Daimler Ag | Verfahren zum Herstellen eines Hybridrovings |
| JP6227956B2 (ja) * | 2013-09-30 | 2017-11-08 | 旭化成株式会社 | 複合糸条 |
| GB201604047D0 (en) * | 2016-03-09 | 2016-04-20 | Coats Ltd J & P | Thread |
-
2019
- 2019-01-18 CH CH00059/19A patent/CH715759A1/de not_active Application Discontinuation
-
2020
- 2020-01-16 EP EP20702517.2A patent/EP3911785A1/de not_active Withdrawn
- 2020-01-16 WO PCT/IB2020/050329 patent/WO2020148691A1/de not_active Ceased
- 2020-01-16 US US17/423,529 patent/US11846045B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20220074085A1 (en) | 2022-03-10 |
| CH715759A1 (de) | 2020-07-31 |
| WO2020148691A1 (de) | 2020-07-23 |
| US11846045B2 (en) | 2023-12-19 |
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