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EP1028183A2 - Procédé et dispositif pour la production de fil d'effet de fil continu - Google Patents

Procédé et dispositif pour la production de fil d'effet de fil continu Download PDF

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Publication number
EP1028183A2
EP1028183A2 EP00810072A EP00810072A EP1028183A2 EP 1028183 A2 EP1028183 A2 EP 1028183A2 EP 00810072 A EP00810072 A EP 00810072A EP 00810072 A EP00810072 A EP 00810072A EP 1028183 A2 EP1028183 A2 EP 1028183A2
Authority
EP
European Patent Office
Prior art keywords
bundle
texturing
filament
yarn
swirling
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Withdrawn
Application number
EP00810072A
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Weiss
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1028183A2 publication Critical patent/EP1028183A2/fr
Withdrawn legal-status Critical Current

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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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • 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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • 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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • 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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • 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

Definitions

  • the invention relates to a method and a device for producing a fancy yarn by texturing.
  • the invention is concerned with the so-called “texturing” or “crimping” (crimping). or “bulking” of synthetic filaments (also called “fibrils”), in particular but not exclusively by means of a stuffer box, preferably a thermal / pneumatic chamber.
  • texturing includes in this description both “ruffling” and “puffing”.
  • one so-called “three-dimensional ripple” generated, as this by air texturing can be achieved by means of a chamber provided with air escape slots.
  • stuffer box is not essential to the invention. It is e.g. known, to allow a bundle of filaments to bounce against an impact to thereby to achieve a texturing effect.
  • the preferred method in this case includes so-called plug formation.
  • Texturing is carried out on at least one "filament bundle", i.e. on one Bundle that comprises several individual filaments.
  • the filament formed by the Texturing is called “thread” in this description.
  • the invention is of particular interest in connection with the manufacture of "Multi-component yarns” i.e. Yarns made up of several interconnected Components are formed, with at least two components relative to one another have at least one "difference".
  • a "thread” in the sense of the previous Paragraph can therefore represent a “multi-component yarn", but it can also consist of be formed only from a component of such a yarn.
  • swirl is also used in this description. The procedure is familiar to the expert. The terminology of the effect of swirling (also sometimes called “interlacing” or “intermingling”) is extensive and often confusing. Swirling increases the coherence of a filament bundle by means of Formations that, with other names, e.g. as “swirled areas”, “interlacing”, “entanglements”, “Thread closures”, “tight spots”, “interlace” and “entanglements” (see e.g.
  • the present invention relates to a modification of a method for the production of yarn as published in EP-A-874 072. Extracts from EP-A-874 072 are subsequently described with reference to FIGS. 1 to 6, which is why here an in-depth explanation can be dispensed with.
  • a yarn contains at least two different filament bundles, preferably each bundle separately swirl and then swirl the bundles together to make the yarn form.
  • the individual components of a multi-component thread also be subjected to a "pre-vortex", also in this In case the pre-intermingled fibril bundles should be stretched before entering the texturing nozzle enter.
  • the present invention is a first invention.
  • the invention provides a method according to which at least one Filament bundle is textured, the process being characterized by a pretreatment that causes a permanent change in the bundle structure.
  • pretreatment here means treatment of the textures to be textured Filaments before they are subjected to the texturing step.
  • the "change of Bundle structure "remains at least as long as it influences the texturing step. It can also remain after texturing. When making one Multi-component games can therefore have the effect of this change in an intermediate (Thread) after texturing and / or in the final yarn product his.
  • filament bundles can be mixed together during texturing or can be combined to form a textured thread together, e.g. thereby, that the texturing takes place in a common chamber.
  • these "bundle plugs" so side by side are formed so that they unite into a "thread plug".
  • the filaments a thread that arises from it can still be after texturing are more firmly connected, e.g. by means of swirling, the thread can be "compacted”.
  • the textured thread can be passed directly to a connection point where it is connected to another component, thereby forming a multi-component yarn to build. This can be done without an intermediate wrap of the textured Filament for packaging formation take place (see. US-PS-5,804,115).
  • the pretreatment preferably, however, does not exclusively include swirling.
  • Alternative methods are spot welding (fusion) or gluing.
  • the invention of course also includes a corresponding device with at least means for texturing a bundle of filaments characterized by means for Carry out a pretreatment that in places causes a permanent change in the Bundle structure causes.
  • the invention provides a device for texturing a Filament bundle in front, the device by means of swirling for such Generating discrete entanglements in the filament bundle is characterized in that these interrelations are still present when the texturing is carried out.
  • the interconnections are accordingly to be formed with sufficient strength that they resist the intended thread tension between pretreatment and texturing can. The required strength for a given case must usually be be determined empirically.
  • the swirling is preferably carried out at a location of this type in the course of the thread, that the interwoven areas are conveyed as directly as possible into the texturing step become.
  • Swirling can e.g. on or in a conveyor channel that leads to a Texturing chamber leads. Swirling takes place e.g. on or in an inlet section of the Channel, wherein a stream of liquid (preferably an air stream) is generated to draw the bundle into and into the duct to promote the texturing chamber, i.e. to pull past the swirl location.
  • the swirling can (as is well known) by means of an air stream (or several Air flows).
  • the swirling air can be preheated so that it has no quenching effect on the filaments of a preheated bundle of filaments generated.
  • filament bundles can be textured together in the texturing chamber. It can be a bundle, or more than one bundle, or it can all be common textured filament bundles are pretreated by swirling.
  • the number of interlaces per (any) unit length of the bundle can be chosen in this way that there are "vacancies" between the links, which Connections of the fibrils between components of a multi-component yarn enable.
  • the invention provides a controllable (reproducible) method for influencing the structure and / or appearance of the yarn product, that is, it results an efficient method for creating "effects".
  • the number of local entanglements per unit length can be used of the filament, the tightness of the interlacing and the uniformity of the Whirl along the length of the filament bundle with respect to the desired one Effect can be controlled.
  • each of EP-0039763, EP-0110359 A1, EP-0123072 A1, EP-0123829 a texturing nozzle is known, which can advantageously be opened to enable that one or more threads can be added for texturing, the texturing takes place after the texturing nozzle is closed again.
  • texturing nozzles in the conveying part work on the injector principle, they are not only able to continue feeding the partial threads after the nozzles have closed, but if necessary, suction, so that non-opening texturing nozzles are also used can be used to bring the threads into the texturing nozzle.
  • a texturing nozzle is known from CH-680140 A5, which at the entrance Injection nozzles, which, to generate a protective twist in the thread, eccentric open into the yarn guide channel.
  • the partial thread is heated and conveyed in one channel or Chamber trained heating and conveying element, and the grafting or curling, or texturing in a second chamber in which the blown heated Gas can escape again, so that a plug can be removed from the chamber can.
  • a transporting cooling element for example, a rotating cooling drum.
  • EP-310890 A1 Rolltex
  • a heating and conveying channel for heating and conveying the thread, or the yarn and a needle roller connected to it to form the yarn plug composed, the plug after the needle roller on a cooling drum, to cool the graft.
  • texturing agents are known from US Pat. No. 3,255,508 (Mitsubishi) assemble from a heating and delivery nozzle and a subsequent cooling drum, the plug formation due to the impact of the heated and conveyed thread arises on the cooling drum.
  • FIGS. 1 to 6 (prior art) explained.
  • the terminology of this part of the description is taken directly from EP-A-874 072 and therefore does not necessarily correspond to the terminology used in the Introduction to the present description is fixed.
  • Fig. 1 shows a device for producing a multi-colored yarn with here, for example three spinning shafts, each with differently colored partial threads 11 or Generate 11.1 or 11.2. These partial threads 11, 11.1, 11.2 are each via a preparation application agent 2 performed, which is usually an oiling agent. Such yarns can also consist of two or more threads.
  • precompacting means 3 which is either a known swirling agent or preferably an is a known false twist.
  • the partial threads 11-11.2 are stretched on godets 4 stretched to a predetermined dimension heated or heated, i.e. in the area the glass transition point, or brought into the thermoplastic area.
  • a precompacting agent provided such that when stretching the interlaced threads 11-11.2 the Swirl constrictions at least partially again, depending on the type of swirl To get picked up.
  • the partial threads 11-11.2 are together in a texturing nozzle 5 textured, primarily due to the partial threads in a heating and conveying element 6 of a conveyor system acting on the injector principle is sucked in, warmed up and be promoted in a crimping element 7. There, due to the escape of the heating and conveying gases between fins 32 or other equivalent air permeable Elements and the resulting reduction in conveying speed and further resulting friction of the individual fibrils of the threads on the wall of the cooling and crimping element 7, the part threads are compressed into a plug, which is then placed on a cooling drum 16.
  • post-compacting means 8 From the operator the plug before or after the cooling drum 16 in crimped threads 11.3 - 11.5 divided and via a take-off roller 33 and, if necessary, via deflecting thread guide 31 each in an associated compacting means, referred to as post-compacting means 8 performed, with the post-compacting means 8 either here known swirling agent or a false twist nozzle.
  • the partial threads 11.3-11.5 are, if necessary, over Deflection thread guide 31 combined on a godet 34, then in one compacted together as collective compacting means 9, that is, either preferably swirled together with known means or wrong together twisted to run again as yarn 12 over a godet 35 and then in Spooler 10 to be wound up.
  • these godets are conveyor rollers, can optionally on one or both godets 33 or 34 before or on the Galette 35 after the compacting means 9 or all three godets 33, 34 and 35 are dispensed with what has to be determined by tests depending on the material.
  • the threads are directly from the winder 10 from the cooling drum 16 and pulled by the post-compacting means 8 and collective compacting means 9.
  • FIG. 2 shows a variant compared to FIG. 1 for texturing the partial threads 11-11.2 after the stretch godets 4 a heating and conveying element 15 with the same functions as the element 6 and then one known per se from US-3255508 Cooling drum 16 with the additional function of element 7, i.e. the Grafting is formed on the cooling drum 16 and cooled.
  • the other elements correspond the elements already described for FIG. 1 and are therefore not mentioned again.
  • Fig. 3 shows a variant of Fig. 1 instead of the spinning shafts 1 individual coils with dyed partial threads, also called dyed bobbins 13.
  • a heating and conveying element 17 is provided, which is functional corresponds to the aforementioned elements 6 and 15, with a subsequent needle roller 18 and subsequent cooling drum 16 and plug-deflecting element provided between them 30.
  • the combination of elements 17, 18, 16 and 30 is in EP-0310890 A1 described why reference was made to this EP document for further details becomes.
  • the remaining elements correspond to the elements of the aforementioned figures and are therefore not mentioned again.
  • supply spools 13 e.g. colored spools
  • FIG. 5 shows a variant of a part of FIG. 1, insofar as a texturing nozzle 20, which has a suction part 21 for each thread 11-11.2 or 14-14.2 issued a protective twist to the corresponding thread, followed by the partial threads in the heating and conveying element 21.1 by means of the conveying medium heated and conveyed and in the subsequent crimping element 22 into one Plugs are curled.
  • the individual heating and delivery channels of the Partial threads combined in the crimping element i.e. that imaginary levels of symmetry of the individual heating and delivery channels intersect in front of the crimping element.
  • the other elements correspond to the elements already described and will therefore not mentioned again.
  • FIG. 6 shows, compared to FIG. 5, a further variant of a texturing nozzle in the a texturing nozzle 23 for the filaments, a heating and conveying element 24 and also has a common crimping element 25 in order to separate the individual partial threads for heating and conveying, and texturing together.
  • the invention can be used in combination with any of those shown in Figures 1-6 Versions or in other conceivable variants can be used.
  • the texturing agent is therefore only shown schematically below.
  • FIG. 7 now shows schematically a first embodiment according to the present invention with a texturing or stuffer box 100 and two delivery channels 101, 102 which open into an end section 100.1 of the chamber 100. Through these channels are in operation of the device, a fiber bundle (not shown in FIG. 7) is introduced into the chamber 100. Additional channels could be provided and they could each be a bundle of fibers to lead. The principle is based on the description of an execution with only two bundles clear for the variants with several bundles.
  • a respective pair of air supplies 103, 104 is assigned to each channel 101, 102 by which conveying air is introduced into the corresponding channel.
  • This conveying air escapes laterally (not shown) from the texturing chamber, which improves the conveying effect subsides so much that the filaments jam and form a plug, which fills the cross section (not shown) of chamber 100. Subsequent filaments bounce against this plug and thereby form loops or ripples or Buckling, as will be explained in more detail below with reference to FIG. 11.
  • the amount of air to promote the individual bundles should use a "common" Texturing chamber 100 versus the amount of air to convey a single bundle be reduced.
  • the optimal amount of air can be determined empirically.
  • a swirl nozzle is located in or on each duct upstream of the air inlet connections 105 or 106 arranged such that the incoming into the texturing chamber For the time being, the bundle must pass through the respective swirling nozzle.
  • a respective air supply 107 is assigned to nozzle 105, 106.
  • a "pretreatment" takes place in the sense of this invention, as follows in more detail is explained.
  • the swirling air is preferably preheated to a temperature of this type, that it has no quenching effect on the preheated filaments.
  • the preheating of the swirling air is not essential to the invention - the omission could even be used under certain circumstances to achieve an effect. A prerequisite for this, of course, is that the quenching does not result in degradation other essential filament properties.
  • module 1 The elements 101 to 107 are referred to as “module 1", with a “module 2" below is described with reference to Figure 12.
  • Characteristic feature of module 1 is the common texturing chamber 100.
  • the incoming bundles are textured together in chamber 100 as well is described below with reference to Figures 9 to 11.
  • the textured together Bundles form a "thread" 129 through a suitable compacting step can be performed, as indicated schematically in Figure 7 with the box 108 is.
  • Suitable compacting agents are shown in EP-A-874 072.
  • FIG. 8 schematically shows a further development with two modules 1 and one common compacting 109 for those from the respective texturing chambers 100 emerging threads (not shown, since only schematically in the sense of a flow chart shown).
  • the two modules 1 are not necessarily identical - the one module could, for example, comprise two delivery channels 101, 102 (variant according to FIG. 7), the other however, more than two channels, each with a filament bundle in the common texturing chamber of the module.
  • the compacting 109 the two of threads formed in each module are combined to form a multi-component yarn 130 which contains all filament bundles that have entered the two modules 1 in FIG. 8.
  • Such a yarn naturally comprises (in this case) two individually textured components, whereby further components are also generated by a module and by Compacting could be combined with the components described.
  • FIG. 9 schematically shows the structure of a filament bundle 110 before it enters the Swirling nozzle 105 or 106 runs in.
  • the bundle comprises a plurality (preferably between 20 and 200) of individual filaments 131, each individually in the The direction of movement is stretched out, so that the bundle has no significant entanglements includes. This condition can be caused by stretching above the swirl nozzle can be achieved, as has already been explained with reference to Figures 1 to 4.
  • the swirling in a nozzle 105 or 106 creates interlacing V, which is shown in FIG. 10 are shown schematically.
  • the individual vacancies S1, S2, S3 etc. are in Figure 10 shown "bulged” for the visualization.
  • the filaments could be in this Condition when there is no longitudinal tensile force on the bundle would.
  • the bundle is downstream from the The swirl nozzle is actually under tension because it is drawn in by the conveying air Pulled towards the texturing chamber.
  • the individual filaments are nevertheless, not all of them are stretched out next to each other because they are in every open position S certain filaments due to the intermingling (i.e.
  • the interrelationships should be so strong that they are at most can be partially resolved by traction before the intertwined Place runs into the texturing chamber. Each bundle therefore still contains such interconnections, if it is compressed in the texturing chamber to form a plug.
  • FIG. 11 In this figure it was assumed that three filament bundles B1, B2 and B3 side by side in the Texturing chamber lie and together form a plug, which is in this Example from "top to bottom" moved through the chamber. The actual direction of movement in space is not important in and of itself, since gravity is not essential Role play.
  • This thread is actually already a "multi-component yarn" in the sense of being single Bundling into a (more or less compact or coherent) coherent Thread have been united.
  • By controlling the loop formation before or during texturing it is possible to achieve "effects” that vary depending on the different Properties (e.g. color of the filaments) of bundles B1, B2, B3t increased can be.
  • the effect can also be influenced, for example, by the fact that the The amount of conveying air and the delivery speed for each bundle are individually selected becomes.
  • Such a multi-component yarn does not only include components from jointly textured bundles but also components from individual textured or non-textured threads.
  • Figure 12 shows one with two, but not limited to two filament bundles, each for Filament bundle (not shown) provides its own texturing nozzle 120 (such Variant has also been explained in EP-A-874 072).
  • the nozzle 120 includes one Texturing chamber 121, a delivery channel 122 and air supply lines 123, 124. On or In each channel 122 there is a swirling nozzle 105 with its own air supply 107 (see FIG. 7) provided.
  • the nozzle 105 produces (as in the example according to FIG. 7) interlacing V (Fig. 10), which cannot be textured and therefore represent a certain "effect", which is hardly of commercial interest.
  • connection device 125 e.g. a vortex.
  • module 2 The combination of the two texturing nozzles with the device 125 is referred to as module 2, the individual texturing is characteristic in this case.
  • FIGS. 13, 14 and 15 show two modules X and Y, each producing a textured yarn.
  • Module X can be used as Module 1 or Module 2 and Module Y can also be designed as Module 1 or Module 2 become.
  • the intermediate products emerging from the modules X and Y are in a common compacting 126 interconnected.
  • FIG. 14 shows the same module X (designed as module 1 or 2) and the same Compacting agent 126, this time in combination with a single texturing nozzle 127, e.g. a nozzle 120 (FIG. 12) with its own swirl 105.
  • the use the swirl 105 in the nozzle 127 is not essential to the invention in this case, if there is a swirl in module X.
  • the turbulence in the Module X is not essential to the invention when swirling in the nozzle 127.
  • the invention is also implemented if only at one "place" in the overall process is pretreated.
  • FIG. 15 also shows the module X and the Compacting 126 together with a yarn feed from a spool 128, i.e. in this In this case, a non-pretreated yarn is supplied as a component and in the end product involved.
  • the "adhesive" could be chosen such that it is only a temporary one Effect is achieved, provided that this effect remains until texturing. It Under certain circumstances, water could even be used as an "adhesive" Water in the texturing chamber gradually evaporates, but the texturing process does so is influenced in places.
  • the welding takes place e.g. through the discontinuous generation of heat in the or on the bundle to be treated.
  • heat can e.g. using microwaves are generated, whereby "wave pulses" can be generated to eliminate the discontinuity of the To ensure pretreatment.
  • the frequency and / or the pulse intervals of the microwaves can be changed both to achieve different effects as well to be able to treat different materials.
  • the swirling can through a separately formed swirl nozzle attached to the texturing apparatus be achieved.
  • the swirl nozzle is in the texturing apparatus built in, e.g. by means of at least one additional air supply opening in the inlet section of the conveyor channel.
  • the conveying air and the swirling air originate preferably from the same source and are before the respective entry into the delivery channel about the same air conditioning (preheating).
  • these features are not essential to the invention.
  • the structural change acts in such a way that the subsequent texturing influences at most (as was explained with reference to FIG. 11) is prevented in places.
  • Texturing is supposed to take place over most of the bundle length produce its normal effect, being discontinuous (in discrete places) Texturing is influenced by the pretreatment.
  • One possible effect of the pretreatment is "compacting" in the sense of a reduction the ability of the individual filaments of a multifilament bundle to "mix” the individual filaments of another multifilament bundle.
  • the components have individual characters that humans can still perceive, where else rather a monotonous or blurry effect would be achieved. Such effects are particularly useful if the effect to be achieved is an optical effect is.
  • the invention is therefore particularly intended for use where the components have different colors or can be dyed differently beforehand.
  • the invention can be precompacted e.g. at position 3 in Figures 1 and 4 can be combined. This allows multiple filament bundles to be separated from each other are held until they arrive at a location where the combination is desired.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP00810072A 1999-02-09 2000-01-26 Procédé et dispositif pour la production de fil d'effet de fil continu Withdrawn EP1028183A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH24199 1999-02-09
CH24199 1999-02-09

Publications (1)

Publication Number Publication Date
EP1028183A2 true EP1028183A2 (fr) 2000-08-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184494A3 (fr) * 2000-09-01 2003-10-01 Maschinenfabrik Rieter Ag Buse de texturation
CN111560674A (zh) * 2020-04-24 2020-08-21 常州欣战江特种纤维有限公司 一种蓬松度高的户外用纺前着色再生aty纤维的制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184494A3 (fr) * 2000-09-01 2003-10-01 Maschinenfabrik Rieter Ag Buse de texturation
CN111560674A (zh) * 2020-04-24 2020-08-21 常州欣战江特种纤维有限公司 一种蓬松度高的户外用纺前着色再生aty纤维的制备方法

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