EP1585851A2 - Verfahren und vorrichtung zur herstellung von multifilamentgarnen - Google Patents
Verfahren und vorrichtung zur herstellung von multifilamentgarnenInfo
- Publication number
- EP1585851A2 EP1585851A2 EP04702692A EP04702692A EP1585851A2 EP 1585851 A2 EP1585851 A2 EP 1585851A2 EP 04702692 A EP04702692 A EP 04702692A EP 04702692 A EP04702692 A EP 04702692A EP 1585851 A2 EP1585851 A2 EP 1585851A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- stretching
- temperature
- shrinkage
- yarn
- 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.)
- Granted
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
- 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
- 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
-
- 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
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
-
- 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
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
-
- 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
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
-
- 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
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/006—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a fluid bed
Definitions
- the invention relates to a method and a device for producing a two- or multi-component multifilament yarn, the components of which have different shrinkage behavior, at least one component being irreversibly extendable by the action of heat, and the components being combined to form a combination yarn, the potential for lengthening the Components can be triggered by heat treatment after processing into a textile fabric.
- Such yarns are known for example from DE 39 15 945. These composite yarns then consist of at least two components, one component expanding into a textile fabric after heat treatment after processing and the other component shrinking during this heat treatment. These yarns are therefore also referred to as differential shrink yarns. The two components are preferably combined with one another by swirling.
- This combination yarn is produced in two separate steps: component A is drawn off a bobbin as undrawn yarn, drawn in a draw frame, then subjected to heat treatment by a contactless heater in a relaxed state, whereby component A is given the property of being processed Spontaneously prolong the state of heat treatment in the equipment.
- Component B is solidified and stabilized in a stretching process and then wound onto a spool.
- this bobbin serves as a template for the production of the combination yarn C, the component B being drawn off from a bobbin as a drawn yarn and being combined with the component A flowing out of the heat treatment. Both components A and B are connected to one another by swirling in a swirling device.
- JP-PS 09 25 00 36A it is known to produce a two-component multifilament yarn, the two components being produced parallel to one another and combined by a intermingling device with the aim of triggering the different shrinkage of the components by heat treatment of the woven yarn and thereby to get a voluminous, fluffy fabric.
- One component is false-twist textured using this known method. As a result, the above-described coil running difficulties are avoided.
- the fabric has elastic properties and is voluminous.
- the other component is extended by the heat treatment in the processed state. This different length behavior creates loops that give the fabric voluminous and fluffy properties.
- a disadvantage of this known method is that the heat is lost when the false twist texturing of this component heats up.
- the filaments are crimped by the false twist texturing.
- Productivity is limited by the manufacturing process of the extension component, because in order to achieve a suitable self-extension potential of this component (over 10% self-extension), the delivery speed must not exceed 400 m / min.
- the object of the present invention is to provide a method and a device with high productivity for the production of such combination yarns in improved quality, with a high shrinkage effect and improved processability, in order to produce soft textile fabrics with high volume.
- the combination yarn By producing the combination yarn in a single continuous process, the winding and peeling of the shrinkage component and the associated thread tension fluctuations are avoided.
- the pre-intermingling required for the winding process which has an adverse effect on the connection of the two components, is also eliminated.
- high handling and transport costs as well as the need for additional expensive winding tubes are saved.
- the yarn residues that arise with each template and their removal on the feed spools are also eliminated.
- Property irregularities of the shrink yarn B which are caused by intermediate storage of the bobbins or a false twist texturing, are also avoided.
- the shrinkage component is drawn in parallel to the treatment of the extension component without any texturing, so that the combination yarn, including its components, in a single continuous process is produced as a smooth, almost loop-free yarn. Both components can thus be set and connected to each other under the same thread tension conditions, which leads to a high quality and uniformity of the combination yarn.
- Tensioning before stretching the components has proven to be expedient in order to compensate for fluctuations in tension and to achieve uniform conditions in the stretching zone.
- a retaining element is expediently provided, which generates and regulates the desired thread tension.
- the extension component runs vertically through the heater against the force of gravity from the bottom up, because this is the best way to avoid contact with the wall and also to ensure better and more uniform heating of the individual filaments of the component in the heater.
- Pre-heat treatment before the actual heat treatment for shrinking has surprisingly proven to be extremely effective for good quality and for achieving high production speeds.
- the drawn filaments are already preheated to a temperature just below the shrinking temperature when they enter the heater, so that the filaments are heated to the required temperature above the shrinking temperature Ts with a much shorter heating distance.
- the temperature gradient between the heater and yarn is also smaller than with the previous heating system. The gradual, gradual heating causes all the filaments to reach the same temperature at the same time and loops are avoided, for example due to shrinkage prematurely triggered in the heater.
- all filaments are better and more uniformly heated, which is also essential for the quality of the loop formation in the textile fabric.
- the preheating device is arranged directly in front of the heating device for the shrinking, encapsulated by a housing or also integrated into the heating device.
- Fig. 1 is a schematic representation of the differential shrinkage yarn after triggering the differential shrinkage effect in the yarn.
- Fig. 2 is a schematic representation of the manufacturing process for a combination yarn according to the invention.
- FIG. 3 shows another embodiment of the manufacturing process according to FIG.
- Figure 1 shows schematically the structure of the differential shrinkage yarn C after triggering the differential shrinkage effect, which was created by the connection of components A and B.
- the combination yarn C is subjected to a heat treatment in the finished fabric, in which the differential shrinkage is triggered, that is, the component A lengthens, while the component B shrinks and therefore lies stretched in the differential shrink yarn C.
- the two components A and B are connected to one another by the swirl nodes K.
- the number of knots with which the two components A and B are connected to one another has a significant influence on the quality of the combination yarn C. It has been found that the number of knots required for a quality combination yarn cannot be determined as a whole, but from that Yarn count of the combination yarn C is dependent.
- the number of intermingling knots on combination yarn C on the finished fabric or knitted fabric is counted. If the number of intermingling knots is at least a hundred knots per meter or more, depending on the yarn strength (formula) and based on the yarn in the finished fabric, this results in well integrated loops with great stamina and uniformity.
- the filaments of yarn component A form micro loops when the length change is triggered during the heat treatment of the fabric in the equipment, which create a texture in the fabric and thus the handle and the functional egg significantly improve properties.
- the surface structure is voluminous, the goods have a dry, soft and delicate handle. Depending on the filament and yarn fineness, there is a peach skin effect "peach skin", velvet, silk, linen, wool or cotton.
- the starting materials are essentially the same for both components; polyester filaments are preferably used.
- the properties of this different shrinkage or elongation are obtained by treating the filaments differently before the two components are brought together and connected to one another.
- the treatment process for component A (extension component) and component B (shrinkage component) is shown schematically in FIG. Both components are placed in the form of pre-oriented filament yarn (POY) on conventional creels and pulled off overhead.
- POY pre-oriented filament yarn
- the multifilament yarn for producing component A is drawn off from a bobbin 1A through an eyelet 15 and fed to a drawing roller 2, which forms a drawing field with the following drawing roller 3.
- the stretching roller 2 is heated with a surface temperature which is selected such that the filaments running over it are heated to a temperature in the region of the so-called glass transition temperature TG, SO that after after stretching, a maximum tensile strength expansion according to ISO 2062 of the yarn of 25% to 40% is achieved.
- the temperature of the heated draw roll 2 is selected so that the drawn yarn A has the shrinkage capacity required for the subsequent process. The degree of crystallization of the drawn filaments is thus higher than that of the original material.
- a heater 7 is therefore used in which the threads have no mechanical contact during their passage.
- Convection heaters are preferably used here, in which the filaments are heated by air or steam or the like.
- This heater 7 is expediently arranged vertically in order to avoid sagging of the relaxed filaments. It has also proven to be advantageous to guide component A from bottom to top against the force of gravity through heater 7, so that the weight of the thread supports the reduction in thread speed required for shrinking.
- the chimney effect has a favorable effect in this direction of passage, since not the hottest temperature immediately affects the thread. The heating power gradually comes into effect through the inflowing air. The filaments are heated more evenly. Surprisingly, it has been shown that the filaments must not be heated suddenly, but gradually, in order to obtain a loop-free, smooth yarn which can be further processed without problems even at high production speeds.
- the extension component A is combined with the shrinkage component B.
- the shrinkage Component B has now also undergone its treatment, which is necessary in order to shrink in the processed state during heat treatment.
- the original material 1B is drawn off overhead through a thread eyelet 16 and fed to the stretching roller 5, which forms a stretching field with the subsequent stretching roller 6, in which the filaments are subjected to stretching, so that after stretching they have a maximum tensile strength stretch of 25% to 40 % and achieve a wet shrinkage of 1% to 70%.
- the stretch film 5 is heated in order to heat the filaments for the stretching process. Following this stretching, the combination with component A then takes place.
- the thread tension in component B resulting from the stretching process is adapted to the thread tension of component A, so that a uniform intermingling of the two components in the intermingling device 8 is guaranteed.
- the intermingling device 8 leaves the components A and B now connected by the intermingling as a combination yarn C, which is guided through a thread feed eyelet 91 arranged in front of the winder 9 and wound up into a bobbin.
- the combination yarn C produced by this one-step process is characterized by high quality and uniformity.
- both components A and B can ultimately be brought together under completely identical conditions, which is essential for the subsequent connection in the swirling device. Both components are smooth.
- the strain on the filaments and the risk of filament breaks are avoided without additional measures, such as a so-called preliminary vortex for the winding of component B would be required.
- This pre-intermingling which is necessary to avoid disturbances when the filaments wind up and down on a spool, prevents a uniform and good connection of components A and B and also leads to loop formation.
- FIG. 2 Another embodiment of the one-step process is shown in FIG.
- the process has been optimized by a few additional devices so that even higher production speeds can be achieved while maintaining and even increasing the quality.
- supply bobbins 1A and 1 B with pre-oriented polyester multifilament yarns (PET-POY) are provided as the feed material, which are pulled off overhead by thread eyelets 15 and 16, respectively.
- PET-POY pre-oriented polyester multifilament yarns
- a delivery mechanism 10 which has a certain retention function, so that the filaments are tensioned to even out the tension of the thread entering the stretching field between the rollers 2 and 3 as it pulls off the bobbin.
- a thread brake can also be used as a retaining element.
- a contact heater 14 is also provided in the drawing field for heating the filaments during drawing in order to obtain the desired maximum tensile strength expansion and shrinkage values.
- the filament yarn does not run directly into the heater 7, but only via a roll 71, which serves here as a preheater and is arranged directly in front of the heater 7, in order to largely prevent the yarn from cooling in the meantime.
- the filaments between the stretching roll 3 and the preheater 71 designed as a roll are relaxed before they undergo the heat pretreatment.
- the filaments are heated to a temperature just below the shrinking temperature Ts, so that only a small temperature difference has to be heated in the heater 7 for the shrinking process, namely from just below the shrink temperature Ts to above the shrink temperature Ts to the temperature TL required for the elongation properties (FIG. 8).
- the heater 7 can thus not only become significantly shorter, but it is also possible to drive much higher speeds with such a two-stage heating.
- this preheater 71 is arranged as close as possible to the heater 7, possibly also integrated therein by means of a shielding hood 72, or both heaters 7 and 71 are combined to form a two- or multi-stage heater.
- a contact heater preferably designed as a heated roller, is used, the heat transfer of which is considerably more efficient than that of a convection heater.
- the heater 7 can be designed in one or more stages in order to ensure uniform heating of all filaments.
- a step heater is shown in detail in FIG. 7, in which the preheater 71 is also included. It begins with the preheater 71, which gives the filaments a temperature just below the shrinking temperature T s , at which they are relatively insensitive. The filaments run into the heater 7 at this temperature.
- the housing 72 prevents cooling during the transition into the heater 7.
- the heater 7 is divided into three heating zones, which are traversed by the component A filaments.
- a heating element H1 is installed in the first heating zone, which acts on the filaments with a temperature Tm (FIG. 9). The temperature of the filaments rises slowly, so that all filaments can follow this temperature rise despite the high production speed.
- a heating element H2 with the temperature TH2 acts in the second zone and the filaments are further heated. Only at the end of the third zone with the temperature TH3 do the filaments reach the temperature T required for the desired elongation properties, at which the component A leaves the heater.
- FIG. 8 schematically shows the temperature profile of the filaments during their heating in the heater 7.
- the dashed line shows schematically the temperature rise in the filaments when using a single heating element which acts uniformly over the length of the heater 7 with the temperature TH.
- a gradual heating can also be achieved here when the filaments pass through the heater 7 from bottom to top. Due to the resulting air flow (chimney effect), the air in the heater 7 is warmer at the top than at the bottom.
- the time at which the filaments are kept at a temperature above the shrinking temperature can be reduced. have temperature T s .
- the temperature of the filaments is brought back to a temperature lower than T s .
- the shrink component B has in the meantime been treated in parallel in order to obtain the desired shrink properties.
- the multifilament yarn is drawn off overhead from a supply spool 1B through a thread eyelet 16.
- a delivery mechanism 12 is arranged in front of the drawing roll 5 in order to achieve a tension of the filaments before entering the drawing field between the drawing rolls 5 and 6.
- a thread brake 111 or another retention device can also be provided here. It is only essential that a certain pretension of the multifilament yarn can be generated.
- a contact heater 13 is also arranged in the draw field between the draw rollers 5 and 6 in order to heat the filaments to the temperature required for drawing. Then tension compensation takes place again between the stretching roller 6 and the delivery mechanism 4, so that the component B is brought together with the extension component A under the same tension conditions and is connected in the connecting device 8.
- the thread tension in the connecting device 8 is regulated via a pair of draw-off rollers 11. This measure has proven to be extremely advantageous for the uniformity of the interlacing and thus the quality of the combination yarn C.
- a thread brake 111 as shown in FIG. 5, can also be provided in the connecting device 8 to regulate the thread tension.
- the finished combination yarn C then runs through the thread feed eyelet 91 into the winder 9 for winding.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10301925 | 2003-01-17 | ||
DE10301925A DE10301925A1 (de) | 2003-01-17 | 2003-01-17 | Verfahren und Vorrichtung zur Herstellung von Multifilamentgarnen |
PCT/EP2004/000308 WO2004065670A2 (de) | 2003-01-17 | 2004-01-16 | Verfahren und vorrichtung zur herstellung von multifilamentgarnen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1585851A2 true EP1585851A2 (de) | 2005-10-19 |
EP1585851B1 EP1585851B1 (de) | 2010-12-15 |
Family
ID=32602754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04702692A Expired - Lifetime EP1585851B1 (de) | 2003-01-17 | 2004-01-16 | Verfahren und vorrichtung zur herstellung von multifilamentgarnen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1585851B1 (de) |
AT (1) | ATE491832T1 (de) |
DE (2) | DE10301925A1 (de) |
WO (1) | WO2004065670A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103255528A (zh) * | 2013-05-25 | 2013-08-21 | 南通市泓丰捻线有限公司 | 高弹丝一次成型加工装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113062022A (zh) * | 2021-03-17 | 2021-07-02 | 绍兴市柯桥区东纺纺织产业创新研究院 | 一种高弹纱的生产方法 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1102580A (en) * | 1964-05-19 | 1968-02-07 | Courtaulds Ltd | Improvements in the manufacture of bulky yarns |
CH499642A (de) * | 1966-10-04 | 1970-08-14 | Asahi Chemical Ind | Verfahren zur Herstellung eines hochelastischen Bauschgarns |
US3483690A (en) * | 1967-05-10 | 1969-12-16 | Stevens & Co Inc J P | Bulky plied yarn |
US3653198A (en) * | 1967-05-10 | 1972-04-04 | Stevens & Co Inc J P | Method for manufacturing a plied yarn |
US4019312A (en) * | 1975-05-16 | 1977-04-26 | Akzona Incorporated | Method of combining synthetic yarns |
US4615167A (en) * | 1985-01-04 | 1986-10-07 | Greenberg Neville G | Highly entangled thread development |
EP0352376B1 (de) * | 1987-01-26 | 1994-03-02 | Toray Industries, Inc. | Latent gekräuseltes Garn, aus diesem Garn hergestellte Stoffbahn und Verfahren zur Herstellung dieses Garnes |
DE3720237A1 (de) * | 1987-06-15 | 1989-01-05 | Amann & Soehne | Verfahren zum herstellen von luftblastexturiertem naehgarn |
US4880961A (en) * | 1988-03-02 | 1989-11-14 | E. I. Du Pont De Nemours And Company | Apparatus for heating yarn |
DE3813898A1 (de) * | 1988-04-21 | 1989-11-02 | Amann & Soehne | Verfahren zum herstellen von luftblastexturiertem naehgarn |
US4965919A (en) * | 1988-08-31 | 1990-10-30 | Toyo Boseki Kabushiki Kaisha | Potential bulky polyester associated bundles for woven or knitted fabric and process for production thereof |
DE3831700A1 (de) * | 1988-09-17 | 1990-03-22 | Amann & Soehne | Verfahren zur herstellung eines garnes, insbesondere eines naehgarnes, sowie ein garn |
US5054174A (en) * | 1988-12-13 | 1991-10-08 | Barmag Ag | Method of producing an air textured yarn |
JPH0332834A (ja) * | 1989-06-29 | 1991-02-13 | Kawasaki Steel Corp | 耐候性と加工性の優れた塩化ビニル系樹脂被覆鋼板およびその製造方法 |
JP2945719B2 (ja) * | 1990-06-19 | 1999-09-06 | 株式会社ニフコ | 引出し装置 |
DE4424547C2 (de) * | 1993-07-15 | 2001-05-17 | Staehle Gmbh H | Verfahren zur Herstellung eines Nähfadens und Nähfaden |
JPH07243138A (ja) * | 1994-03-04 | 1995-09-19 | Toyobo Co Ltd | 織編物用潜在嵩高性ポリエステル複合糸条 |
JP3547539B2 (ja) * | 1995-10-31 | 2004-07-28 | ユニチカ株式会社 | 梳毛調複合混繊糸 |
JP3589520B2 (ja) * | 1996-03-11 | 2004-11-17 | ユニチカ株式会社 | 異収縮複合糸の製造方法 |
DE19627010C1 (de) * | 1996-07-04 | 1997-12-11 | Madeira Garnfabrik Rudolf Schm | Verfahren zum Herstellen eines schrumpfarmen Garns |
DE19703924C2 (de) * | 1997-02-03 | 1999-11-18 | Heberlein Fasertech Ag | Verfahren, Düse und Anlage zum Luftbehandeln von Filamentgarn |
JPH11181642A (ja) * | 1997-12-11 | 1999-07-06 | Toyobo Co Ltd | ポリエステル系マルチフィラメント混繊糸と該混繊糸を使用した織編物 |
EP1434902B1 (de) * | 2001-10-12 | 2007-05-09 | Deutsche Institute Für Textil- Und Faserforschung Stuttgart | Gewebe und verfahren zu seiner herstellung |
-
2003
- 2003-01-17 DE DE10301925A patent/DE10301925A1/de not_active Withdrawn
-
2004
- 2004-01-16 DE DE502004011996T patent/DE502004011996D1/de not_active Expired - Lifetime
- 2004-01-16 AT AT04702692T patent/ATE491832T1/de not_active IP Right Cessation
- 2004-01-16 EP EP04702692A patent/EP1585851B1/de not_active Expired - Lifetime
- 2004-01-16 WO PCT/EP2004/000308 patent/WO2004065670A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2004065670A3 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103255528A (zh) * | 2013-05-25 | 2013-08-21 | 南通市泓丰捻线有限公司 | 高弹丝一次成型加工装置 |
Also Published As
Publication number | Publication date |
---|---|
DE502004011996D1 (de) | 2011-01-27 |
WO2004065670A2 (de) | 2004-08-05 |
EP1585851B1 (de) | 2010-12-15 |
DE10301925A1 (de) | 2004-07-29 |
ATE491832T1 (de) | 2011-01-15 |
WO2004065670A3 (de) | 2005-02-24 |
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