JPH11158745A - Processed yarn and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a processed yarn capable of producing a knitted fabric with a clear, contrastable and diversified texture, apart from any integrated portions such as nep and slub, and excellent in operability when the yarn is subjected to moving, processing, dyeing and knitting, to provide a method for producing the yarn in good producibility by using no complex manufacturing steps or apparatus but simple methods and apparatus. SOLUTION: This interlaced processed yarn comprising >=2 kinds of filament yarns comprises 15 to 50 interlaced portions based a length of 1 m and non- interlaced portions disposed at random in the longitudinal direction of the yarn and at least one non-interlaced portion having the filament yarns unevenly distributed. The other objective method is conducted by subjecting the filament yarns to interlacing treatment while keeping a length difference between the filament yarns <=1% and then subjecting them to drawing treatment in the draft magnification of 1.03 to 1.13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to entangled textured yarns. More specifically, the present invention is capable of producing a woven or knitted fabric having a sharp, sharp, and varied heather effect, and has no accumulation portion such as a nep or a slab.
Yarn running, processing, dyeing, processing yarn subjected to entanglement treatment excellent in handling at the time of knitting and weaving, and a simple method of using the processing yarn without using complicated manufacturing processes and manufacturing equipment And a method of manufacturing with high productivity using an apparatus.

[0002]

2. Description of the Related Art As heather yarns used for producing knitted or woven fabrics having heather effect, false twisting is performed by giving two or more yarns having different dyeing properties or color tones with a yarn length difference between the yarns. Conventionally, many processed yarns have been proposed. In this false twisted yarn, one yarn is used as a core yarn, and the other yarn (remaining yarn) is wound as a sheath yarn. It is a false twist two-layer structure yarn. However, the above-mentioned conventional false twist 2
In the layered yarn, the sheath yarn is simply loosely wound around the core yarn, so that the sheath yarn is easy to slide on the core yarn, is inferior in handleability, and is structurally unstable. . For example, such a conventional false-twisted double-structured yarn is liable to generate non-uniform neps and slabs when it comes into contact with an abraded object such as a guide during traveling, causing the sheath yarn to shift and accumulate in a lump. In addition, the running property of the yarn and the knitting and weaving properties are poor, and the yarn is liable to be cut. Further, the knitted fabric obtained by using such a yarn often has a remarkably poor appearance.

[0003] In addition, a confounding process obtained by winding two or more kinds of multifilament yarns having different dyeing properties or color tones so as not to cause a yarn length difference between the yarns, and then winding the yarns as they are. It has been conventionally proposed to use a yarn to produce a knitted fabric having a heather effect. However, this entangled yarn has a large number of entangled portions of 50 or more entangled portions per meter, generally 50 to 100 entangled portions per meter along the length of the yarn at a short pitch. Moreover, the length between adjacent confounding parts (length of non-confounding part)
Is substantially the same, in a woven or knitted fabric obtained using this interlaced yarn, a dyed part and a non-dyed part, or one color tone part and a different color tone part enter at a fine pitch, In the heather tone without sharpness.

Further, as a method of obtaining a heather yarn capable of providing a knitted fabric exhibiting a sharp heather tone, two or more kinds of yarns are supplied to an air entanglement device while their feed rates are alternately changed intermittently. Conventionally, there has been known a method of producing a processed yarn in which a core yarn and a sheath yarn are alternately replaced along the length direction of the yarn by performing entanglement treatment. However, in the case of this conventional method, a device for changing the feed rate of two or more yarns alternately and intermittently is required, so that the device is complicated, and the speed of supplying the yarn to the entanglement device is limited. Therefore, there is a disadvantage that high-speed processing cannot be performed, productivity is low, and cost is high.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a textured yarn having a good heather effect, which can produce a woven or knitted material having a sharp, sharp, and varied heather tone. It is. Further, an object of the present invention is to provide a processed yarn having a good heather effect as described above, which has no accumulation portion such as a nep or a slab and has excellent handleability during running, processing, dyeing, knitting and weaving. It is to provide. The object of the present invention is to have the above-mentioned good heat-treating effect that can be manufactured economically and with high productivity at a high processing speed without requiring a complicated manufacturing device (for example, a feeding device or a confounding device). It is to provide a textured yarn.
Further, an object of the present invention is to provide a method for easily and efficiently producing a heat-treated yarn having the above-mentioned various excellent properties with good productivity.

[0006]

The present inventors have made various studies in order to achieve the above object. As a result, the processed yarn is composed of two or more types of multifilament yarns, has 15 to 45 entangled portions per 1 m in length, and the length of the non-entangled portion is random in the length direction of the processed yarn. A woven or knitted fabric using unevenly distributed processed yarns in which at least some of the non-entangled portions do not uniformly mix the two or more types of multifilament yarns when viewed in a cross section of the processed yarn. When manufactured, it is possible to obtain a woven and knitted fabric having a clear, sharp, varied heather tone, and such processed yarn has no accumulation parts such as NEPs and slabs. It was found that it was excellent in handleability during dyeing, weaving and weaving. And we have:
A processed yarn capable of exhibiting such an excellent heather effect can be obtained by supplying two or more types of multifilament yarns to an interlacing device so that a yarn length difference does not occur between the yarns and performing an interlacing process. It has been found that the entangled yarn can be obtained by stretching at a predetermined low draft ratio. In addition, the present inventors, even when the processed yarn obtained above is false twisted,
It has been found that when knitting and weaving is performed using the false twisted yarn obtained thereby, a woven or knitted fabric having a good heat-shielding effect can be obtained. Further, the present inventors, when the textured yarn obtained by the above-mentioned stretching treatment, or the textured yarn obtained by the above-described stretching treatment and false twisting processing is brought into contact with a bending member under a predetermined tension, a sharper heather effect can be obtained. Was found to be obtained in a woven or knitted fabric, and the present invention was completed based on those various findings.

That is, the present invention relates to a processed yarn comprising two or more kinds of multifilament yarns, wherein the processed yarn has 15 to 45 entangled portions per 1 m in length, and has a length of a non-entangled portion. Are random in the length direction of the processed yarn, and the two or more types of multifilament yarns are unevenly distributed in at least a part of the non-entangled portions. The present invention further includes the above-described processed yarn that has been subjected to false twisting.

In the present invention, two or more kinds of multifilament yarns are entangled while maintaining the yarn length difference between the yarns at 1% or less, and then drawn at a draft ratio of 1.03 to 1.13. A method for producing a processed yarn as described above, characterized by performing a treatment. Further, in the present invention, two or more kinds of multifilament yarns are entangled while maintaining the yarn length difference between the yarns at 1% or less, and then stretched at a draft ratio of 1.03 to 1.13. Next, a false twisting process is performed. Further, the present invention has a step of bringing the textured yarn obtained by the above-mentioned stretching treatment into contact with the bending member under a tension at which the entangled portion is not released, or is obtained by performing the above-mentioned stretching treatment and false twisting The method for producing a textured yarn described above includes the step of bringing the textured yarn into contact with the bending member under a tension at which the entangled portion cannot be unraveled.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. The processed yarn of the present invention is composed of two or more types of multifilament yarns, and has a length of 15 per m of the processed yarn.
And the length of the non-entangled portion between adjacent entangled portions is random and unequal in the length direction of the processing yarn, and at least some of the non-entangled portions have the length of 2
More than one type of multifilament yarn exists in a non-uniform state when viewed in the cross section of the processed yarn.

On the other hand, in the conventional entangled yarn obtained by air-entanglement of the multifilament yarn, the number of entangled portions per 1 m of the length of the entangled yarn is generally as large as about 50 to 100, and furthermore, non-entangled. The length of the portion is substantially the same in the length direction of the entangled yarn. In this respect, the textured yarn of the present invention is different from such a conventional entangled textured yarn in that the number of entangled portions is small and the length of the non-entangled portion is random in the length direction of the textured yarn. There is a big difference in the point.

If the number of entangled portions per 1 m of the processed yarn is less than 15, abnormalities such as when dyed portions and non-dyed portions enter at an extremely long pitch during the production of a woven or knitted fabric. In the heather state, good heatherness is no longer exhibited, and the unevenness between the filaments constituting the processed yarn is increased, and the handleability during running, processing, dyeing, weaving, weaving, etc. of the yarn is improved. breaking bad. On the other hand, when the number of entangled portions per 1 m of the processed yarn exceeds 45, a monotonous woven or knitted fabric having a fine heather tone without sharpness when knitting and weaving is obtained. In the processed yarn of the present invention, it is preferable that the number of entangled portions per 1 m of the processed yarn is 20 to 45, whereby a clear, sharp, variable, and good heather tone is expressed in the woven or knitted fabric. In addition, the handleability during running, processing, dyeing, knitting and weaving of the yarn is improved.

Further, in the processed yarn of the present invention, as described above, the length of the non-entangled portion between the entangled portions is not the same in the length direction of the processed yarn but is random. It is necessary. If the length of the non-entangled portion is not random and is the same or almost the same, even if the number of entangled portions per 1 m of the processed yarn is in the range of 15 to 45, there is no sharpness, Only a monotonous knitted fabric with little change can be obtained. The random state of the length of the non-entangled portion in the processed yarn can be adjusted by adjusting the entanglement conditions when manufacturing the processed yarn, the draft ratio when stretching the entangled yarn, and the like. The length of the longest unentangled portion in the length direction is about 2 to 5 times the length of the shortest unentangled portion, and various lengths between the longest unentangled portion and the shortest unentangled portion described above. It is preferable that there are non-entangled portions, and the non-entangled portions exist randomly in the length direction of the processed yarn.

Further, the textured yarn of the present invention needs to be composed of two or more types of multifilament yarns. The constituting multifilament yarn may be any of synthetic fibers, semi-synthetic fibers and / or regenerated fibers. Examples of the synthetic fibers in that case include, for example, polyester fibers; polyamide fibers;
Polyolefin fiber such as polypropylene; vinyl halide polymer fiber such as vinyl chloride polymer and vinylidene chloride polymer; acrylic fiber; polyvinyl alcohol fiber; polyurethane fiber. Examples of semi-synthetic fibers include cellulose acetate fibers, and examples of regenerated fibers include rayon, polynosic fibers, and cupra.

Further, the multifilament yarn constituting the processed yarn of the present invention may be any one of a fiber composed of a single polymer, a conjugate fiber and a mixed fiber. further,
The multifilament yarn constituting the processed yarn of the present invention,
The cross-section fiber, the cross-section fiber, or a mixed fiber thereof may be used. The processed yarn of the present invention is, for example, a multifilament yarn composed of two or more kinds of round-section fibers. Even if it is composed of a multifilament yarn composed of a round cross-section fiber and a multifilament yarn composed of a modified cross section, it is composed of a multifilament yarn composed of two or more types of irregular cross sections. You may. Moreover, 2 which comprises the processed yarn of this invention
One type of multifilament yarn or two or more types of multifilament yarn among the types of multifilament yarns may be subjected to false twist processing in advance.

Among them, the processed yarn of the present invention has a different dyeing property from the point that when woven and knitted, a clear, sharp and varied heather tone can be smoothly expressed in the woven or knitted fabric. It is preferred to be composed of more than one kind of multifilament yarns or of two or more kinds of multifilament yarns (primed yarns) which have already been dyed or colored in different colors. Although not limited in any way, examples of such a combination of two or more types of multifilament yarns include a combination of two or more types of polyester multifilament yarns having different dyeing properties (for example, a cationic dyeable yarn). Of polyester multifilament yarns and non-cationically dyeable polyester multifilament yarns), polyester multifilament yarns dyed in a predetermined color and polyester multifilament yarns dyed in a different color Combination, polyester multifilament yarn and polyamide multifilament yarn combination, polyester multifilament yarn and polyolefin multifilament yarn combination, polyamide multifilament yarn and polyolefin multifilament It can be mentioned a combination of cement yarn, the combination of dyeability and different synthetic fibers from each other semi-synthetic fibers and / or regenerated fibers, and the like.

The number of multifilament yarns constituting the processed yarn is not limited as long as the processed yarn of the present invention is composed of two or more types of multifilament yarns. If the number of filament yarns is too large, it is difficult to develop a crisp and sharp, varied heather tone on the woven or knitted fabric. More preferably, it is composed of two to three types of multifilament yarns.

Further, in the processed yarn of the present invention, one type of multifilament yarn is used with respect to the total denier of the processed yarn so that the woven or knitted fabric has a clear, sharp, and varied heather tone. The occupied denier number is preferably in the range of 10 to 90%, more preferably in the range of 20 to 80%.

In the processed yarn of the present invention, it is necessary that two or more types of multifilament yarns are unevenly distributed in at least a part of the non-entangled portions. Even when the processed yarn is composed of two or more types of multifilament yarns, in all non-entangled portions, two or more types of multifilament yarns are not unevenly distributed and are, for example, uniformly dispersed. In addition, if they are arranged in a well-balanced state, a clear, sharp, and varied heather tone cannot be exhibited in the woven or knitted fabric. In the textured yarn of the present invention, from the viewpoint that a clear and sharp heather tone can be well exhibited in the woven or knitted fabric, 60% or more of all non-entangled portions of the textured yarn have a thickness of 2%.
It is preferable that more than one type of multifilament yarns are unevenly distributed, and it is more preferable that two or more types of multifilament yarns are unevenly distributed in all non-entangled portions.

The uneven distribution state of two or more types of multifilament yarns in the non-entangled portion of the processed yarn is such that when viewed in a cross section of the non-entangled portion, at least the surface portion of the processed yarn is one type of multifilament yarn. It is preferable that two or more types of multifilament yarns are arranged on the surface portion in an unbalanced state without being composed only of the yarns. Although not limited, examples of a preferable uneven distribution state in the non-entangled portion include a side-by-side type and an eccentric core-sheath type. However, when the non-entangled portion of the processed yarn is the above-described side-by-side type or eccentric core-sheath type, the two or more types of multifilament yarns do not necessarily have to be a proper side-by-side type or eccentric core-sheath type. However, it is only necessary that the shape be substantially a side-by-side type or an eccentric core-sheath type in the cross section of the unentangled portion. Without any limitation,
Examples of the preferable uneven distribution state of the filament in the non-entangled portion of the processed yarn of the present invention include (a) to (e) of FIG. In FIG. 1, (A) shows a filament derived from one multifilament yarn, (A) shows a filament derived from a different type of multifilament yarn from (A), and (C) shows (A) )
And (a) shows a filament derived from a different type of multifilament yarn.

Unlike the textured yarn of the present invention, two or more types of multifilament yarns are not unevenly distributed in the non-entangled portion of the textured yarn. For example, two or more types of multifilament yarns are uniformly distributed with each other. Even when dispersed or not evenly dispersed, the core portion is not eccentric, and the core-sheath type is not eccentric, and even sea-island type (islands of almost the same size are arranged almost evenly. (E.g., sea-island type), it is difficult to obtain a woven or knitted material having a sharp, sharp, and varied heather tone.

In the textured yarn of the present invention, the difference in yarn length between two or more types of multifilament yarns constituting the textured yarn is preferably 1% or less, more preferably 0.5% or less. . If the yarn length difference between the two types of abnormal multifilament yarns is 1% or less, the filaments will be displaced by abrading objects such as guides during the running of the yarn, and will accumulate in a lump to generate an uneven nep or slab. And a woven or knitted fabric excellent in appearance and quality can be manufactured.

The total denier of the processed yarn, the number of filaments constituting the processed yarn, the single fiber fineness of each filament, and the like are not particularly limited, and can be adjusted according to the use of the processed yarn. Generally, the processed yarn of the present invention has a total denier of 100 to 500 denier, a total filament of 48 to 200 filaments, and a single fiber fineness of each filament of 1 to 10 denier, preferably 2 denier.
７7 denier, the handleability of the processed yarn, the knitting and weaving properties, the quality of the obtained woven or knitted fabric (eg, flexibility, drape, tension, waist, etc.), and the appearance quality (eg, streaks, nep,
Slabs, steps, etc.) are preferred because they are more excellent.

Further, the processed yarn of the present invention may be subjected to processing such as false twisting, twisting, and the like, and even in this case, a woven or knitted fabric having a clear, sharp, and varied heather tone can be obtained. be able to. In particular, when the textured yarn of the present invention is a false twist textured yarn, since the convergence is imparted to the non-entangled portion by the false twisting, the handleability of the yarn during running or knitting and weaving is improved. In addition, there is an advantage that bulkiness can be obtained.

In the present invention, a processed yarn composed of two or more kinds of multifilament yarns is used.
It has up to 45 entangled portions, the length of the non-entangled portion is random in the length direction of the processed yarn, and the two or more types of multifilament yarns are at least partially unentangled. Any method may be employed as long as the unevenly distributed textured yarn of the present invention can be manufactured. Among them, the textured yarn of the present invention is obtained by subjecting two or more types of multifilament yarns to entanglement while maintaining the yarn length difference between the yarns at 1% or less, and then at a draft ratio of 1.03 to 1.13. It can be obtained smoothly by the above-mentioned production method of the present invention comprising stretching.

In the above-described manufacturing method of the present invention, when the yarn length difference between two or more types of multifilament yarns at the time of the interlacing treatment is larger than 1%, one multifilament yarn is surrounded by another multifilament yarn. It becomes a so-called core-sheath type processed yarn in which the yarn is entangled, and the above-described number of entangled objects aimed at in the present invention, characteristics of the non-entangled portion, a processed yarn having uneven distribution characteristics can not be obtained, and it is clear and sharp, It becomes difficult to express a variety of heather tone in the woven or knitted fabric.
Moreover, filaments are displaced by rubbing substances such as guides during the running of the yarn, and are accumulated in a lump, resulting in non-uniform neps and slabs, and the appearance and quality of the woven or knitted fabric tend to be inferior. In the present invention, two or more kinds of multifilament yarns are preferably adjusted so that the yarn length difference between them is 0.5%.
In the following, it is more preferable to carry out the confounding process by supplying to the confounding device while maintaining the content at 0%. At that time, two or more types of multifilament yarns are not mixed beforehand, for example, in a state where they are aligned in a laterally side-by-side type, or in a state where they are aligned in a vertically stacked state. When the entanglement process is performed by supplying the multifilament yarn to at least a part of the non-entangled portion, it is possible to smoothly obtain a processed yarn in which two or more types of multifilament yarns are unevenly distributed.

In the present invention, the confounding treatment is generally carried out preferably by using a pressurized fluid, and particularly preferably by using pressurized air. The feed rate and air pressure of the multifilament yarn when performing the entanglement treatment using pressurized air can be adjusted according to the type of the multifilament yarn, the number of denier, the single fiber fineness, and the like. Two or more types of multifilament yarns are supplied to the entanglement device at an overfeed rate of about 2 to 5%, and
It is preferable to perform the confounding treatment at an air pressure of up to 5.0 kg / cm ² . If the overfeed rate and / or air pressure of the multifilament yarn during the entanglement treatment is too low, the formation of the entangled portion becomes insufficient, and the next stretching treatment is performed at a draft ratio of 1.03 to 1.13. However, most of the entangled parts are unraveled, and 15 to 45 per m of length
It becomes difficult to obtain a processed yarn having multiple entangled portions. on the other hand,
If the overfeed rate and / or air pressure during the entanglement process is too high, the number of entangled portions becomes too large or the entanglement becomes too strong to obtain a processed yarn having 15 to 45 entangled portions per 1 m in length. For this reason, it is necessary to set the tension at the time of the next drawing process to be high, and as a result, troubles such as cutting of the yarn and generation of fuzz accompanying the yarn are likely to occur. The type and structure of the entanglement device used for the entanglement process are not particularly limited, and any of the entanglement devices conventionally used for the entanglement process of the multifilament yarn can be used, such as an air entanglement nozzle.

Next, the entangled yarn obtained as described above is
Stretching is performed at a draft ratio of 1.03 to 1.13, the number of entangled portions per 1 m in length is 15 to 45, and the length of the non-entangled portions is random in the length direction of the processed yarn. Yes,
In addition, the processed yarn of the present invention in which the two or more types of multifilament yarns are unevenly distributed in at least a part of the non-entangled portions. By changing the draft ratio at the time of the drawing process within the range of 1.03 to 1.13 described above, the number of entangled portions in the processed yarn can be changed within the range of 15 to 45 described above.

If the draft ratio at the time of drawing is out of the above range and less than 1.03, the entangled portion is hardly unraveled, and the number of entangled portions per 1 m of the length of the processed yarn after the drawing process is reduced. Is greater than 45, and a desired processed yarn cannot be obtained. On the other hand, the draft ratio at the time of stretching treatment is 1.13.
Is exceeded, the number of entangled portions unraveled by the stretching treatment becomes too large, the number of entangled portions per 1 m of the processed yarn length becomes less than 15, and furthermore, the generation of fluff or the cutting of filaments occurs. Therefore, troubles are likely to occur during running, dyeing, knitting and weaving of the yarn. Moreover, the woven or knitted fabric obtained from such a processed yarn has poor appearance and quality, and does not exhibit a clear, sharp, and varied heather tone. In the present invention, the stretching process of the entangled yarn is performed in the range of 1.05 to 1.1.
It is preferable to carry out at a draft magnification of 0. The draft ratio at the time of the stretching treatment in this specification refers to the supply speed of the yarn to the stretching device as S ₁ (m / min) and the take-out speed of the yarn from the stretching device as S ₂ (m when the / min), the formula: refers to a value determined by S ₂ / S _1.

In the stretching of the entangled yarn, 1.03
The stretching method, stretching apparatus, stretching conditions and the like are not particularly limited as long as stretching can be performed at a draft magnification of ~ 1.13, but in a non-contact state using two or three or more sets of stretching rollers having different rotation speeds, A method of drawing at a temperature of room temperature to 170 ° C. is preferably employed because the intended processed yarn of the present invention can be obtained smoothly.

The processed yarn of the present invention obtained by performing the above stretching treatment can be appropriately wound and used as it is for production of a woven or knitted fabric. Further, the processed yarn obtained by performing the above-mentioned stretching treatment may be unwound before winding or after being wound once, and then subjected to false twist processing to form a false twist processing.
The method and apparatus of the false twisting process at that time, the false twisting conditions such as the number of twists and the temperature at the time of the false twisting process are not particularly limited. It can be adjusted appropriately according to the thickness and the like. Although not limited in any way, for example, when the processed yarn is composed of two or more kinds of polyester multifilament yarns having different dyeing properties, the draft magnification is 1.03 to 1.03.
The processed yarn obtained by stretching at 1.15 is 180 to 2
After heating to a temperature of 20 ° C. and performing false twisting at a number of false twists of 1400 to 3000 T / m, if necessary, heat-treating at a temperature of 220 ° C. or less to provide a false twisted processed yarn of the present invention. Can be obtained.

Further, in the present invention, the step of bringing the textured yarn obtained by the above-mentioned drawing treatment into contact with the bending member may be performed, or the step of bringing the textured yarn obtained by the drawing treatment into contact with the bending member may be carried out. After passing through, false twisting may be performed,
Alternatively, a process in which the processed yarn obtained by the stretching treatment is false-twisted and then brought into contact with the bent member may be performed.
In this case, the step of bringing the entangled portion into contact with the bending member is preferably performed under a tension such that the entangled portion in the processed yarn is not released.
Through the step of contacting the bending member described above,
The degree of uneven distribution of two or more types of multifilament yarns in the non-entangled portion of the processed yarn is strengthened, and a processed yarn capable of exhibiting a clearer, sharper, more varied heather tone on the woven or knitted fabric can be obtained. . The step of bringing the processed yarn into contact with the bending member includes a guide roller in the course of the traveling path of the yarn during processing and handling of the processed yarn, and in the course of winding the processed yarn and unwinding from a roll or the like. A contact member such as a guide pin, a guide rod, a guide plate, a pin heater, etc., is disposed, and the processing yarn is caused to travel with bending of the yarn while being brought into contact with the yarn under some tension (in the traveling direction of the yarn). It can be carried out by using a member that travels with a change).

Although not limited in any way, the above-described method for producing the processed yarn of the present invention is illustrated with reference to FIGS. 2 to 5, reference numerals 1 and 2 denote two types of multifilament yarns (original yarns) supplied to the entanglement process, 3 denotes a supply roller, 4 denotes an entanglement device such as an air nozzle, and 5 denotes a first delivery. Roller, 6
Is a second delivery roller, 7 is a plate heater, 8 is a false twisting tool, 9 is a third delivery roller, 10 is a hollow heater, 11 is a relaxation roller, 12 is a take-up roller,
Reference numeral 13 denotes a bending member, 14 denotes a fourth delivery roller, A denotes a processed yarn obtained by a drawing process, and B denotes a processed yarn obtained by false twisting after a drawing process. Two types of multifilament yarns 1 and 2 are used, and the yarn length difference between yarns 1 and 2 is 1%.
After supplying to the confounding device 4 and performing the confounding process while maintaining the following, the first delivery roller 5 and the second delivery roller 6
The stretching process is performed at a draft ratio of 1.03 to 1.13 by adjusting the rotation speeds of both the delivery rollers. At that time, in FIG. 2, the yarn obtained by the above-mentioned stretching treatment is taken up and wound by the take-up roller 12 as it is to obtain the processed yarn A of the present invention. Also, in the case of FIG.
The yarn obtained by stretching at 03 to 1.13 is heated by a plate heater 7 provided downstream of the second delivery roller 6 and then false-twisted by a false twisting tool 8, and then the third delivery roller 9 is removed. After passing through the hollow heater 10 and heat-treating, the take-up roller 12 takes up and winds through the relax roller 11 to obtain the false twisted processed yarn B of the present invention.

Further, in the method of manufacturing the processed yarn A shown in FIG. 2, the bending member 13 is disposed between the second delivery roller 6 and the take-up roller 12 as shown in FIG. The yarn A may be wound through a step of bending while making the yarn A come into contact with the bending member 13 under tension so as not to disentangle. Further, in the method of manufacturing the processed yarn B shown in FIG. 3, the bending member 13 is provided between the relax roller 11 and the fourth delivery roller 14 as shown in FIG.
May be arranged, and the processed yarn B obtained by performing the false twisting process after the stretching process may be wound through a process of bending while being brought into contact with the bending member 13 under such tension that the entanglement cannot be unraveled. In the case of the steps shown in FIGS. 4 and 5, a processed yarn in which the uneven distribution of two or more types of multifilament yarns in the non-entangled portion is more remarkable. Although not shown, the bending member 13 may be arranged in the middle of unwinding the processed yarn A or the processed yarn B wound once and supplying the unwound yarn to the weaving device. As described above, as the bending member 13, a guide roll, a guide pin, a guide bar, a guide plate, a pin heater, and the like are generally used.

The textured yarn of the present invention is effectively used for the production of a woven or knitted fabric. When the textured yarn of the present invention is used for the production of a woven or knitted fabric, the woven or knitted fabric has a sharp, sharp, and varied heather tone. Can be obtained smoothly. Although it is not limited at all, when a knitted fabric is manufactured using the processed yarn of the present invention,
For example, as shown in FIG. 6, a portion having a dark color and a portion having a light color are in a random pitch, sharp, sharp, and rich in change, and have excellent heather tone. A knitted fabric is obtained. On the other hand, the yarn length 1
When the knitted fabric is manufactured using a conventional multifilament entangled strip in which the number of entangled portions per m is 50 to 100 and the length of the non-entangled portion is almost the same, as illustrated in FIG. The knitted fabric has fine, almost the same pitch, a mixture of dark color portions and light color portions, little change, no sharpness, and a monotonous heather tone.

In producing a woven or knitted fabric using the processed yarn of the present invention, a woven or knitted fabric can be produced using the processed yarn as it is, used as a twisted yarn, or twisted with another yarn. Woven or knitted fabric. In producing a woven or knitted fabric, the processed yarn of the present invention may be used alone, or one or two of the processed yarn of the present invention and another yarn (eg, a filament yarn, a spun yarn, or another processed yarn). More than one species may be used.

The woven or knitted fabric obtained by using the processed yarn of the present invention makes use of its vivid, sharp, varied heather-like pattern, outer garment, inner garment, and other various garments; curtains, upholstery, furniture. And interior materials such as car cushion covers and partitions; bed covers,
It is effectively used for beddings such as pillow covers and pajamas; bags, bags, accessories such as scarves, mufflers, ties, and gloves.

[0037]

EXAMPLES The present invention will be described below in more detail with reference to examples and the like, but the present invention is not limited thereto. In the following examples, measurement of the number of entangled portions and the length of non-entangled portions in the processed yarn, observation of the uneven distribution of two types of multifilament yarns in the processed yarn, and observation of the appearance of the heather-like pattern in the knitted fabric Was performed as follows.

(1) Measurement of the number of entangled portions and the length of the non-entangled portion in the processed yarn: A sample (processed yarn) having a length of 10 m was collected, and a needle was attached to one end of the non-entangled portion at one end thereof. The needle is inserted and moved to measure the distance until the needle stops at the next entangled portion and stops moving, and then the needle is inserted into one end of the next unentangled portion, and the same operation as described above is performed on the sample. The length of each non-entangled portion is measured for a 10 m sample by repeating the measurement along the length direction, and the number of the entangled portions is counted to 1 m.
Convert to the number of confounding parts per hit.

(2) Observation of uneven distribution of two types of multifilament yarns in the processed yarn: the processed yarn is dyed, and the non-entangled portion of the obtained yarn is cut at right angles in the length direction and crossed. The surface is exposed, and the stained state on the cross section is observed with a microscope to examine the uneven distribution of the two types of multifilament yarns.

(3) Observation of the appearance of the heather pattern on the knitted fabric: The appearance of the heather pattern on the dyed knitted fabric is visually observed.

Example 1 (1) As shown in FIG. 2, a multifilament false twisted yarn 1 made of polyethylene terephthalate (150 denier / 4
8 filaments) and a cation-dyeable polyester multifilament yarn 2 (ethylene terephthalate-based polyester yarn having ethylene sulfoisophthalate units as copolymerized units) (150 denier / 48 filaments) are supplied to the supply roller 3 at the same supply speed. Supply and stack vertically (Yarn difference between both multifilament yarns = 0
%), Which is supplied to the confounding device (air nozzle) 4 at an overfeed rate of 3%, subjected to a confounding treatment under the condition of an air pressure of 3.5 kg / cm ² , and then the first delivery roll 5 and the second delivery roll 6 at normal temperature at a draft ratio of 1.08 (draft ratio of 8%).
(305 denier) was produced.

(2) With respect to the processed yarn A obtained in the above (1), the number of entangled portions per 1 m of the length was measured by the above-mentioned method and found to be 43. The length of the shortest unentangled portion in the processed yarn A is 1.9 cm, and the length of the longest unentangled portion is 6.2 cm. There were random unentangled parts with various lengths between 6.2 and 6.2 cm. (3) The processed yarn A obtained in the above (1) is cationically dyed with a cationic dye at a temperature of 98 ° C. for 20 minutes [Dye bath composition; Dye “AIZEN CATHILON B”
LUE GLH "(manufactured by Hodogaya Chemical Co., Ltd.) 0.7% owf,
Sodium acetate 0.75% owf, 50% acetic acid 2.5%
owf, bath ratio 1:50], and the dyed yarn obtained thereby was washed with water and dried at 50 ° C. Observation of the cross-sectional state of the unentangled portion of the dyed yarn A obtained by the above method showed that the state was almost the same as that shown in FIG. The filament (a) derived from the yarn 1 and the filament (a) derived from the cationic dyeable polyester multifilament yarn 2 were almost side-by-side and unevenly distributed.

(4) A knitted fabric is produced using the processed yarn A obtained in the above (1) using a cylindrical knitting machine having a diameter of 3 inches and a number of needles of 170, and the knitted fabric is Cation dyeing is carried out using a cationic dye at a temperature of 98 ° C. for 20 minutes [Dye bath composition; Dye “AIZEN CATHILON BLUE”
GLH ”(manufactured by Hodogaya Chemical Co., Ltd.) 0.7% owf, sodium acetate 0.75% owf, 50% acetic acid 2.5% ow
f, bath ratio 1:50], and the obtained dyed knitted fabric was washed with water and dried at ° C. The heather-like state of the dyed knitted fabric thus obtained was visually observed. As shown in FIG. 6, a cationically dyed portion (a portion exhibiting a dark color) and a non-dyed portion (a portion having a light color) were observed. ) Had a sharp, clearly expressed, random, and varied heather tone.

Example 2 (1) As shown in FIG. 3, a polyethylene terephthalate multifilament yarn 1 (250 denier / 48 filament) and a cationic dyeable polyester multifilament yarn 2 (ethylene sulfoisophthalate unit Ethylene terephthalate polyester yarn having polymerized units) (75 denier / 24 filaments)
Are supplied to the supply roller 3 at the same supply speed and are aligned and overlapped vertically (the yarn length difference between the two multifilament yarns = 0
%), Which is supplied to the confounding device (air nozzle) 4 at an overfeed rate of 3%, subjected to a confounding treatment under the condition of an air pressure of 3.5 kg / cm ² , and then the first delivery roll 5 and the second delivery roll 6 at normal temperature at a draft ratio of 1.08 (draft ratio of 8%), and further through the second delivery roller 6 at an overfeed ratio of 1.0%.
At 220 ° C with the plate heater 7
And then heat-heated to 215 ° C. by the hollow heater 10 via the third delivery roller 9 and then to the take-off roller via the relax roller 11. Take it up at 12, take it up,
A false twisted processed yarn B (340 denier) was produced.

(2) With respect to the processed yarn B obtained in the above (1), the number of entangled portions per 1 m of the length was measured by the above-mentioned method and found to be 21. The length of the shortest unentangled portion in the processed yarn B is 2.5 cm, and the length of the longest unentangled portion is 7.3 cm. There were random unentangled parts with various lengths between 7.3 and 7.3 cm. (3) Using the processed yarn B obtained in the above (1), dyeing with a cationic dye in the same manner as in (3) of Example 1, washing with water and drying, and the dyeing process obtained thereby Observation of the state of the cross section of the unentangled portion of the yarn B by the above-described method shows that the state is almost the same as that shown in FIG. 1B, and the filament (A) derived from the polyester multifilament yarn 1 is obtained. ) And the filament (a) derived from the cationic dyeable polyester multifilament yarn 2 were almost side-by-side and unevenly distributed.

(4) Using the processed yarn B obtained in the above (1), a knitted fabric is produced using a tubular knitting machine in the same manner as in (4) of Example 1, and Example 1 for knitted fabric
Dyeing was performed using a cationic dye in the same manner as in (4) above, and the heather state of the dyed knitted fabric obtained thereby was visually observed. The state was the same as that shown in FIG. The cationically dyed part (dark colored part) and the non-stained part (light colored part) are knitted fabrics with a random pitch, a sharply developed, sharp and varied heather tone. Was.

<< Comparative Example 1 >> (1) As shown in FIG. 2, the same multifilament false twisted yarn 1 (150 denier / 48 filament) made of polyethylene terephthalate as used in Example 1 was used.
The same cationic dyeable polyester multifilament yarn 2 (150 denier / 48 filaments) as used in (1) is supplied to the supply roller 3 at the same supply speed to be aligned vertically and overlapped (yarn between the two multifilament yarns). Long difference =
0%), which is supplied to an entangling device (air nozzle) 4 at an overfeed rate of 3%, and is entangled under an air pressure of 3.5 kg / cm ² , and then the first delivery roll 5 and the second delivery It was stretched at a draft ratio of 1.15 (draft ratio: 15%) with the roll 6 at room temperature to produce a processed yarn (300 denier). (2) With respect to the processed yarn obtained in the above (1), the number of entangled portions per 1 m of the length was measured by the above-mentioned method, and it was found to be 10. In the processed yarn C, the filament was partially cut, and many fluffs were generated. (3) Further, a knitted fabric is produced using the processed yarn obtained in the above (1) using a tubular knitting machine in the same manner as (4) in the first embodiment, and the knitted fabric is produced in the same manner as in the first embodiment. The dyed knitted fabric was dyed using a cationic dye in the same manner as in (4), and the heather-like state of the resulting dyed knitted fabric was visually observed. The cationically dyed portion (dark portion) and the non-dyed portion (A part having a light color) and mixed at an extremely long pitch, and abnormal entanglement spots are observed partially, many fluffs are generated, and an abnormal heather state is exhibited. Appearance and quality.

<< Comparative Example 2 >> (1) As shown in FIG. 2, the same multifilament false twisted yarn 1 (150 denier / 48 filament) made of polyethylene terephthalate as used in Example 1 was used.
The same cationic dyeable polyester multifilament yarn 2 (150 denier / 48 filaments) as used in (1) is supplied to the supply roller 3 at the same supply speed to be aligned vertically and overlapped (yarn between the two multifilament yarns). Long difference =
0%), and supplied it to the entanglement device (air nozzle) 4 at an overfeed rate of 3%, and entangled under an air pressure of 3.5 kg / cm ² to produce a entangled processed yarn (30).
5 denier). The number of entangled portions per 1 m of the length of the processed yarn thus obtained was measured to be 80 as described above. In addition, the lengths of the unentangled portions were all in the range of about 1.2 to 1.4 cm, which were almost the same. (2) Further, a knitted fabric is produced by using a cylindrical knitting machine in the same manner as in (4) of Example 1 using the processed yarn obtained in (1), and the knitted fabric of Example 1 is used. Dyeing was performed using a cationic dye in the same manner as in (4), and the heather-like state of the dyed knitted fabric obtained by the visual observation was visually observed. The cation-stained part (dark part) and the non-stained part (light-colored part) are fine, almost the same pitch, and are mixed together. Had.

[0049]

When a woven or knitted fabric is produced using the processed yarn of the present invention, a woven or knitted fabric having a clear, sharp, and varied heather tone can be obtained. Furthermore, the processed yarn of the present invention does not have an accumulation portion such as a nep or a slab, and when the yarn runs,
Excellent handleability during processing, dyeing, weaving and weaving. Further, the processed yarn of the present invention can be manufactured economically and with high productivity at a high processing speed without the need for a complicated manufacturing device (for example, a feeding device or a confounding device). And, according to the production method of the present invention, the heat-treated yarn having the above-mentioned various excellent characteristics can be smoothly produced with simple equipment with good productivity.

[Brief description of the drawings]

FIG. 1 is a view showing a preferred example of an unevenly distributed state of filaments in a non-entangled portion of a processed yarn of the present invention.

FIG. 2 is a diagram illustrating an example of a process for producing a processed yarn of the present invention.

FIG. 3 is a view showing another example of the process for producing a processed yarn of the present invention.

FIG. 4 is a view showing still another example of the process for producing a processed yarn of the present invention.

FIG. 5 is a view showing still another example of the process for producing a processed yarn of the present invention.

FIG. 6 is a view showing a typical example of a state of appearance of heather in a knitted fabric obtained by using the processed yarn of the present invention.

FIG. 7 is a view showing a state of appearance of a heather tone in a knitted fabric obtained using a conventional entangled yarn.

[Explanation of symbols]

 A processing yarn B processing yarn 1 multifilament yarn (original yarn) 2 multifilament yarn (original yarn) 3 supply roller 4 entanglement device 5 first delivery roller 6 second delivery roller 7 plate heater 8 false twisting tool 9 Third Delivery Roller 10 Hollow Heater 11 Relax Roller 12 Pickup Roller 13 Bending Member 14 Fourth Delivery Roller

Claims (9)

[Claims] An entangled processed yarn comprising two or more types of multifilament yarns, wherein the processed yarn has a length of 1 m.
15 to 45 entangled portions, the length of the non-entangled portion is random in the length direction of the processed yarn, and at least some of the non-entangled portions are the two or more types of multifilament yarns. Are unevenly distributed, respectively. 2. The processed yarn according to claim 1, wherein the yarn length difference between two or more types of multifilament yarns constituting the processed yarn is 1% or less. 3. The textured yarn according to claim 1, wherein the textured yarn is composed of two or more kinds of multifilament yarns having different dyeing properties or different colors. 4. In at least some of the unentangled portions,
The processed yarn according to any one of claims 1 to 3, wherein at least one kind of multifilament yarn is unevenly distributed in a side-by-side type or an eccentric core-sheath type. 5. The processed yarn according to claim 1, which has been subjected to false twisting. 6. An entangling treatment of two or more kinds of multifilament yarns while keeping the yarn length difference between the yarns at 1% or less, followed by drawing at a draft ratio of 1.03 to 1.13. The method for producing a processed yarn according to claim 1, wherein: 7. An entanglement treatment of two or more kinds of multifilament yarns while keeping the yarn length difference between the yarns at 1% or less, followed by drawing at a draft ratio of 1.03 to 1.13, The method for producing a textured yarn according to claim 6, comprising performing false twisting. 8. A process comprising a step of bringing a processed yarn obtained by the drawing treatment into contact with a bending member under a tension at which the entangled portion is not unraveled, or a processing obtained by performing the drawing treatment and false twisting The method according to claim 6 or 7, further comprising a step of bringing the yarn into contact with the bending member under a tension at which the entangled portion is not released. 9. The method according to claim 6, wherein two types of multifilament yarns having different dyeing properties or different color tones are used.
9. The production method according to any one of 8.