TW202210673A - Method and device for producing a multicomponent effect yarn - Google Patents

Abstract

The present invention relates to a device and to a method for producing a multicomponent effect yarn (1) and to a multicomponent effect yarn (1) having different short or long effects in volume, colour, stretch variation and/or swirl quality formed from at least two different components (2, 3, 4). The components (2, 3, 4) each have a component feed (5, 6, 7) leading to a shared air mixing nozzle (8) having an air feed (9). The device comprises a controlled variation of a feed speed of the individual components (2, 3, 4). The feed speed of each individual component (2, 3, 4) can be set, wherein: the setting defines a range comprising an upper and a lower value, and a time cycle is determined for a variation between the defined values or for a random variation of the values within the set range; the cycle is defined by a pattern of individual steps repeating in certain periods; each step can be set individually, or the air feed (9) has a closing member (10); the air feed (9) is switched on and off cyclically for predefined times or is randomised within a certain time frame in accordance with a repeating cycle; the cycle is defined by a pattern of individual steps repeating in certain periods; each step can be set individually.

Description

Manufacturing method and device of fancy composite yarn

The present invention relates to a kind of manufacture method and apparatus for producing fancy composite yarn, which is to manufacture short or long flower color from at least two yarns of different volume, color, stretch and/or interweaving characteristics type composite yarns, and each yarn train is fed by a yarn feeding device and an air interlacing nozzle equipped with an air feeding device, respectively.

[0002] So-called fancy yarns are used to produce textured or knitted fabrics. Fancy yarns have alternating thicknesses or areas of large or small volume. It is known from the prior art to produce thick and thin yarns, for example using the principle of false twisting, in which the strands are twisted to a predetermined degree, and after the twist is fixed, the strands are fixed at the same degree of twist, but in opposite directions Can be twisted back. For example, the patent case CH 569 102 A5 discloses a device for producing fancy yarns of alternating volume and smaller volume using a known false-twist curling machine, with a heating device forming the false-twist curling region and a false twist The twister is attached at a distance downstream. Between the heating device and the false twister is provided a damping device which, when the device is in operation, is capable of intermittently diverting the wire harnesses away from their original path by a rotational or oscillating motion. In addition, the JP 2005232610A patent case discloses a method for producing fancy yarns from multifilaments of different colors by individually adjusting the feeding speed of different multifilaments. [0003] Furthermore, methods of air interleaving are already well known. For example, US Patent No. 3,364,537A discloses an apparatus for interlacing multifilament yarns. The air interweaving device consists of a yarn channel combined with one or more pairs of corresponding air ducts arranged to direct a high velocity airflow perpendicular to the axis of the yarn channel. The cross-section of the yarn channel may be rectangular or circular, or may be an open slot or groove with an axis parallel to the yarn path, or may have any suitable cross-section consistent with these configurations. It is not necessary for the yarn channel cross-sections to all have the same shape. Each pair of opposing conduits has a common longitudinal axis, and if there are multiple pairs of opposing liquid conduits, they may be spaced from each other along the yarn passage in the same plane or at different angles relative to each other. [0004] The production of special so-called fancy yarn composite yarns with the above-mentioned equipment is usually limited and insufficient. In the following, for example, as disclosed in US Pat. No. 4,299,015A, the combination and curling of space-dyed yarns may use different combinations of yarns having different colors, structures, or deniers. However, the color is constant throughout the process and cannot be controlled by the yarn length. [0005] U.S. Patent No. 4,103,481 discloses a yarn with variable diameter, which is made by alternately twisting and untwisting with a twist lock device in a false twisting process. Uncontrolled interleaving in this process results in random suits. [0006] A disadvantage of the conventional methods and devices is the inability to control the color at a specific yarn length. Since it is not possible to control random designs, it is not possible to control the designs distributed over the entire length of the yarn, and it is also impossible to achieve a constant design that controls the entire length of the yarn. The final product in the known device cannot determine the suit in each case.

Therefore, it is an object of the present invention to provide a device capable of producing fancy yarns from at least two yarns, each of which has a predetermined appearance over the entire length of the final yarn. Variety. These changes have a major impact on the color deviation, volume, gloss and stretch properties of the final yarn. The above-mentioned object of the present invention is realized by the device having the characteristics of the independent item of the patent scope of this case. The present invention proposes a manufacturing device of a fancy composite yarn, which is to manufacture fancy composite yarns with short or long designs from at least two yarns of different volumes, colors, elongations and/or interweaving characteristics, Each of the yarns is fed by a yarn feeding device and an air interlacing nozzle equipped with an air feeding device, characterized in that the device includes a control variable for controlling the feeding speed of the respective yarns. The decor is based on the speed of the interlacing procedure without changing the individual yarn feeders or the yarn structure. Depending on the feed of the yarn, different colors can be produced through different denier numbers, different colors, different materials, different yarn structures and curls, etc. [0010] The device can be used to produce composite yarns whose designs are combined with different yarns to obtain desired products and properties. The individual components or yarn trains are delivered to an air interlacing nozzle through a yarn feeding device, and the feeding speed of each yarn is controllable. Therefore, the speed of each yarn as it enters the air interlacing nozzle can be individually set or adjusted. According to the present invention, the feeding speed of each yarn is adjustable, and a set range including an upper limit value and a lower limit value is defined, and a variable value between the set range defines a time period . Typical feed rates are from 100 meters/minute to 1000 meters/minute if known air interweaving nozzles are used. However, the actual feed speed depends on the yarn type. components. For example, feeding a silver yarn at a feeding speed of 100 m/min to 1200 m/min or feeding an elastic filament yarn into an air interlacing nozzle at a feeding speed of 20 m/min to 1000 m/min. Preferably, an additional margin of minus 5% to plus 25% is defined for the normal feed rate corresponding to the yarn to the air interlacing nozzle. When designing machines or corresponding components, provide an additional margin of minus 50% to plus 50%. Each individual yarn is fed into the air interlacing nozzle through a separate device. The structure of the device may comprise, for example, a yarn conveyor, a yarn brake or a yarn deflection device. Using the example of a yarn conveyor, it is conceivable to arrange a guide roller to convey the yarn from the supply reel to the air interlacing nozzle. A yarn brake may be used to hold the yarn to some extent before entering the air interlacing nozzle. For the yarn deflecting device, it is possible to use the known device, for example from the CH 569 102 A5 patent. [0012] When setting the feeding speed, a variable range between the maximum and the minimum feeding speed can be defined for each yarn during the operation of the equipment. In addition, a time period is also defined, that is, the time for which the feed speed range is defined. In the first variant, after each time cycle, the feed is restarted after passing through this range of feed speeds. Additionally, the timing of the range of feed speeds from one time period to the next can be changed. However, it is also possible to define a specific time period for a specific feed rate. Therefore, when the cycle time is reached, it switches to the next feed rate. Alternatively, the feeding speed can also be randomly set within a specified range. The function of the set cycle time is to change the feeding speed to the next random variable after the cycle time ends. The various setting options can also be alternated or sorted. [0013] As a supplementary or alternative embodiment, the air supply device has a switch, and the air supply device is turned on and off for a predetermined time periodically or randomly within a specific time interval after a repeated time period. To achieve a further effect, the air supplied to the air interweaving nozzles can be controlled according to a predetermined setting. The time to maintain the opening and closing of the air interweaving nozzle can be set. Alternatively, a time interval may be set at the time when the air supply device is randomly turned on and off. A duplicate time can be provided for both variables. After a certain time, the air supply is switched to the zero position and the program starts again. The zero position may be the open or closed position of the switch member of the air supply. The predetermined time is usually 3 milliseconds to 5000 milliseconds, and is varied at random, advantageously in the range of +0% to +1000% for this time interval, in order to give the yarn a visible decor. For example, the predetermined time is 3ms, the random range is +100%, and the time interval varies from 3ms to 6ms. In prior art devices, pneumatic valves, slide valves or ball valves with short closing times, for example, can be used as the switch. [0014] Furthermore, the time period is defined by a pattern of individual steps repeated over a specific time period, and each of the individual steps is individually adjustable. This periodicity can produce a recognizable pattern in the yarn making of the woven or knitted product in subsequent devices. The configurability of the individual steps results in a variety of patterns that can be produced. [0015] The air interlacing nozzle advantageously comprises an interlacing or swirl nozzle for forming the yarn decor. Such nozzles for processing composite yarns or yarns are known in the prior art and are commercially available. The use of an interlacing air nozzle causes the individual yarns in the nozzle to twist with each other, ie "interlace". On the other hand, the swirl air interlacing nozzle can connect the respective yarns to each other by simply rotating the respective yarns at a specific interval. [0016] The present invention also proposes a method for producing fancy composite yarns from at least two yarns and the aforementioned device with an air interlacing process. The yarn is fed into the air interlacing process during the air interlacing process at different feed rates or with an intermittent air supply or a combination of both. The feed rate and/or the air supply can be adjusted periodically or set according to a time pattern. Advantageously, the feed rate and/or the timing of this air supply is adjustable. This means that suits can be created from changes in the speed itself. The present invention also proposes a kind of fancy composite yarn produced using the above-mentioned device. The yarn includes at least two yarns, wherein the first yarn is a multifilament yarn having a linear density of 11 tex to 1100 tex. The use of multifilament yarns with a range of linear densities as the first yarn is important for the function of providing the desired strength to different yarn combinations in the air interlacing procedure. It has been confirmed that if the multifilament yarn is made of PA (polyamide) or PES (polyester) or PP (polypropylene) or PES copolymer with DTY ( Extended curly yarn) or FDY (full drawn yarn) or POY (half drawn yarn) multifilament yarns are advantageous. The at least one second yarn differs from the first yarn in properties such as color, elasticity, material, linear density, and the like. The type of yarn can also be different, such as DTY or FDY or POY or cotton-like yarn. Alternatively, the at least second yarn is: an elastic core fiber preferably having a linear density of 11 to 560 tex; or a metal-coated polyester core (such as LUREX) with a linear density of 20 to 330 tex; or a cotton-like yarn of cotton or polyester having a fineness of Ne120 to Ne5 or a linear density of 50 to 1100 tex; or A monofilament having a linear density of 10 to 330 tex. [0019] Particularly preferably, the first yarn is a stretched curled yarn (DTY) or a fully stretched yarn (FDY). The advantageous properties of curled yarns are high elasticity and volume. The advantageous property of fully extended yarns is high strength. In addition, due to its multifilament structure, it is very suitable for swirling flow. For example, if the first yarn is white and the second yarn is black, the interweaving result in the finished product will appear as grey yarns with multiple black or multiple white depending on the process or the set feed speed . For another example, it is also possible to add some stretch to the finished product with elasticity and its own elasticity in the same process. For example, the use of a metal-coated polyester core as the second yarn can produce a gloss effect in the finished product. Interwoven yarns made of different materials will produce different colors, such as the interwoven fabric of cationic PES and ordinary PES or cotton. During the dyeing process, different materials have different reactions to the color. In the subsequent dyeing process, the individual yarns are dyed in different colors. [0021] The greater the thickness difference between the individual yarns, the less obvious the designs in the final product. Preferably a linear density of 55 tex or 78 tex or 155 tex is used. In the case of mixing multifilament yarns and cotton-like yarns, the Denier number of the cotton-like yarns must be no greater than that of the multifilament yarns in order to achieve better designs. [0022] In addition, the fancy composite yarn can also be made of two or more yarns. For example, a three-color yarn can be made from three yarns with different colors. The color mixing in the final product can vary cyclically or randomly. The present invention also proposes a fabric or knitted fabric with warp and weft yarns, wherein at least one of the yarns is a fancy composite yarn. [0024] The present invention also proposes a textile product from the field of sports or fashion apparel or home textiles, the textile product comprising a fabric having a woven or knitted fabric as described above. The following will further illustrate the advantages of the present invention with exemplary embodiments:

Fig. 1 shows the schematic diagram of the first embodiment of the device of the present invention for producing a fancy composite yarn 1. The first yarn 2 is guided to a common air interlacing nozzle 8 via the first yarn supply device 5 and the second yarn 3 via the second yarn supply device 6 . In FIG. 1 it is shown by way of example that the first yarn 2 is unwound from the first reel 11 . Alternatively, the first yarn 2 can also be supplied from a different type of intermediate storage or directly from the yarn production facility. After the first reel 11 , the first yarn 2 passes through a first yarn brake 13 . The function of the first yarn brake 13 is to apply a tension to the first yarn 2 located between the first yarn supply device 5 and the first yarn brake 13 . The first yarn feeding device 5 shown in the drawing is a guide roller, and the guide roller is driven to rotate by a drive 15 . The first yarn 2 is looped over the guide roller several times before being further guided to the air interlacing nozzle 8 . [0028] The design of the second yarn feeding device 6 in the embodiment shown is the same as that of the first yarn feeding device 5. The second yarn 3 is unwound and drawn out from the second reel 12 . Alternatively, the second yarn 3 can also be supplied from a different type of intermediate storage or directly from the yarn production facility. After the second reel 12 , the second yarn 3 passes through a second yarn brake 14 . The function of the second yarn brake 14 is to apply a tension to the second yarn 3 located between the second yarn supply 6 and the second yarn brake 14 . The second yarn feeding device 6 shown in the drawings is a guide roller, which is driven in rotation by a drive 16 . The second yarn 3 is looped over the guide roller several times before being further guided to the air interlacing nozzle 8 . [0029] The air interweaving nozzle 8 has an air supply device 9, and a switch 10 is provided in the air supply device 9. Because the switch 10 can be partially or completely closed, the amount of air supplied can be controlled. The closing and opening times of the switch 10, as well as the time during which it is closed or open, may vary. Furthermore, it is also understood that the pressure in the air supply device 9 can also be adjusted by means of corresponding adjustment elements (not shown). After the fancy composite yarn 1 leaves the air interlacing nozzle 8, it is fed to an end reel 19 through a conveying mechanism 18. The end reel 19 is driven in a specific direction of rotation 20 so that the fancy composite yarn 1 is wound onto the end reel 19 . On the one hand, the conveying mechanism 18 is used to ensure the speed of the fancy composite yarn 1 sent out from the air interlacing nozzle 8, and on the other hand, it is used to provide uniform tension when the fancy composite yarn 1 is wound. Fig. 2 shows the schematic diagram of the second embodiment of the device of the present invention. The same components as in Figure 1 are designated with the same element numbers. In contrast to the device shown in FIG. 1 , in the device of FIG. 2 three yarns 2 , 3 and 4 are interwoven to form a fancy composite yarn 1 . Such interwoven yarns are known in principle in the field of three-color yarns. The first yarn 2 and the second yarn 3 and the third yarn 4 are guided through a pre-drawing device 21 . The pre-pulling device 21 is used to evenly stretch and ensure that the yarns 2, 3 and 4 reach the corresponding yarn feeding devices 5, 6 and 7 with a predetermined tension. In the embodiment shown, the first yarn supply device 5, the second yarn supply device 6 and the third yarn supply device 7 are designed as guide rollers with additional steering wheels. The yarns 2 , 3 and 4 are looped several times over the steering wheel and guide rollers before being fed to the air interlacing nozzle 8 . 1, the air interweaving nozzle 8 has an air supply device 9, and a switch 10 is provided in the air supply device 9. Yarns 2, 3 and 4 have different colors. The three yarns 2, 3 and 4 are interlaced with different path changes in response to the different configuration options of the air interlacing nozzle 8 and the respective yarn feeds 5, 6 and 7. After leaving the air interlacing nozzle 8 , the fancy composite yarn 1 formed in the air interlacing nozzle 8 is conveyed by a conveying mechanism 18 to an end reel 19 which rotates in the direction of rotation 20 . The fancy composite yarn 1 is wound on the end reel 19 . [0033] On the one hand, three colors of yarns can be interwoven in the finished fancy composite yarn 1 in a well-defined sequence. The three repeating three yarns 2, 3 and 4 of the respective colors can be clearly seen from the fancy composite yarn 1 shown in Fig. 3a. The arrows in FIGS. 3a and 3b indicate the direction of travel 23 of the fancy composite yarn 1 . On the other hand, three yarns 2, 3 and 4 can be interwoven by adjusting the air interlacing nozzle 8 or the air supply device 9 and the switch 10 as appropriate to form the fancy composite yarn 1 as shown in Figure 3b. Color interweaving and blurred transition patterns from one color to another are shown. [0035] The present invention is not limited to the drawings and the description of the exemplary embodiments. Possible feature combinations of other different embodiments also fall within the scope of variation within the scope of the patent application of the present invention.

[0036] 1: fancy composite yarn 2: The first yarn 3: Second yarn 4: Third yarn 5: The first yarn feeding device 6: Second yarn feeding device 7: The third yarn feeding device 8: Air interweaving nozzle 9: Air supply device 10: switch 11: First Scroll 12: Second Scroll 13: First Yarn Brake 14: Second yarn brake 15: Drive 16: Drive 17: Drive 18: Conveyor mechanism 19: End Reel 20: Rotation direction 21: Pre-lead device 22: Pulley 23: Direction of travel

[0026] FIG. 1 shows a schematic diagram of a first embodiment of the device of the present invention. FIG. 2 shows a schematic diagram of a second embodiment of the device of the present invention. Figure 3a shows a schematic diagram of a first fancy composite yarn. Figure 3b shows a schematic diagram of the second fancy composite yarn.

1: fancy composite yarn

2: The first yarn

3: Second yarn

5: The first yarn feeding device

6: Second yarn feeding device

8: Air interweaving nozzle

9: Air supply device

10: switch

11: First Scroll

12: Second Scroll

13: First Yarn Brake

14: Second yarn brake

15: Drive

16: Drive

18: Conveyor mechanism

19: End Reel

20: Rotation direction

Claims (11)

A device for producing fancy composite yarns, which are used to produce fancy composite yarns with short or long designs in terms of volume, color, stretch and/or interweaving properties from at least two different yarns (2, 3, 4) Thread (1), the at least two yarns (2, 3, 4) are respectively supplied by a yarn supply device (5, 6, 7) and an air interlacing nozzle (8) equipped with an air supply device (9) Conveying, the manufacturing device includes a control variable for controlling the feeding speed of the at least two yarns (2, 3, 4) respectively, characterized in that: The feeding speed of each of the at least two yarns (2, 3, 4) is adjustable, the control variable defines a setting range including an upper limit value and a lower limit value, and the upper limit value and the A variable between the lower limit or a random variable within the set range defines a time period defined by a pattern of individual steps repeated over a specified time, and each individual step can be adjusted individually, and/or The air supply device (9) has a switch (10) which is turned on and off for a predetermined time periodically or randomly within a specific time interval after a repeated time period, the The time period is defined by a pattern of individual steps repeated over a specified time, and each of the individual steps is individually adjustable. According to the manufacturing device of the fancy composite yarn according to claim 1, the air interlacing nozzle (8) comprises an interlacing or swirling nozzle for forming the design of the fancy composite yarn (1). A method for manufacturing a fancy composite yarn, which consists of at least two yarns (2, 3, 4) and a manufacturing device for a fancy composite yarn according to the preceding claim 1 or 2 using an air interlacing process to produce a composite yarn. Fancy composite yarn (1), characterised in that the at least two yarns (2, 3, 4) are fed at different feed speeds or with an intermittent air feed or both during the air interlacing process In conjunction with feeding into the air interweaving process, the feed rate and/or the air supply system can be adjusted periodically or according to a time pattern, and the change of the feed rate and/or the time of the air supply is adjustable. According to the manufacturing device of the fancy composite yarn according to claim 1 or 2, the fancy composite yarn (1) comprises at least two yarns, and a first yarn (2) among the at least two yarns ) is a multifilament yarn having a linear density of 11 tex to 1100 tex. According to the manufacturing device of fancy composite yarn according to claim 4, the first yarn (2) is made of PA (polyamide) or PES (polyester) or PP (polypropylene) or PES copolymer The multifilament yarn of DTY (extended twisted yarn) or FDY (full extended yarn) or POY (semi-extended silk yarn). According to the manufacturing device of the fancy composite yarn according to claim 4 or 5, at least one second yarn (3) in the fancy composite yarn (1) is a yarn having a linear density of 11 to 560 tex Elastomeric core fibers of Sri Lanka or metal-coated polyester cores with a linear density of 20 to 330 tex or cotton-like yarns made of cotton with a fineness of Ne120 to Ne5 or with a linear density of 50 to 1100 Cotton-like yarn made of polyester tex or monofilament having a linear density of 10 to 330 tex. According to the device for manufacturing fancy composite yarns according to claims 4 to 6, the at least two yarns (3) of the fancy composite yarn (1) are respectively made of different materials. According to the manufacturing device of the fancy composite yarn according to claim 4 or 5, the at least two yarns (3) of the fancy composite yarn (1) are respectively made of different materials. A fabric with warp yarns and weft yarns, characterized in that at least one of the warp yarns and/or the weft yarns is the fancy composite yarn according to any one of claims 4 to 8. A knitted pile fabric, characterized in that at least one of the yarns of the knitted pile fabric is the fancy composite yarn according to any one of claims 4 to 8. A textile product, characterized in that the textile product is in the field of sports or fashion clothing or home textiles, and includes a woven or knitted fabric according to claim 9 or 10.

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