JP2017082349A - Taslan-processed yarn, wadding, and method for producing taslan-processed yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a Taslan-processed yarn that has a soft feeling and is excellent in bulkiness.SOLUTION: The Taslan-processed yarn has a total fineness of 500-4000 dtex and has a plurality of bulky parts with a height of 0.3-3.0 cm. The Taslan-processed yarn is obtained by fixing a sheath yarn to a Taslan composite yarn by blending and entangling according to an additional Taslan process, the Taslan composite yarn being obtained by fixing a floating yarn around a core yarn by blending and entangling according to a Taslan process. The core yarn is a false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a. The floating yarn is a false twisted multifilament yarn B composed of a plurality of thermoplastic fibers b. The sheath yarn is a false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a taslan processed yarn, stuffed cotton, and a method for producing a taslan processed yarn. More specifically, the present invention relates to a taslan-processed yarn that is excellent in bulkiness, has a soft texture and an appropriate stiffness, stuffed cotton made of the taslan-processed yarn, and a method for producing the taslan-processed yarn.

  A composite yarn in which a loop or a slack is formed on the surface of a yarn by being mixed and entangled by Taslan processing is widely known. Such a mixed fiber entangled yarn includes a sheath yarn and a core yarn, and is called a taslan processed yarn. Examples of the taslan processing method include processing using an air jet.

  Patent Document 1 describes that a supply yarn containing latent crimped fibers is made into a mixed fiber entangled yarn having a large number of loop fluffs by taslan processing, and then simultaneously drawn false twisted to obtain a spun-like processed yarn. Yes. Since such processed yarn has false twist crimpability, when it is made into a fabric, it exhibits a span-like texture and stretchability.

  Patent Document 2 describes a decorative thread used in the clothing field or the textile material field. In this decorative yarn, fluid is intermittently ejected to a plurality of multifilament yarns having different hues to form a partially mixed entangled yarn having alternating entangled portions and unentangled portions, and then this partially mixed entangled yarn And other multifilament yarns having different hues are subjected to fluid entanglement at the same time, thereby causing hue change and shape change between yarns. Such decorative yarns are used for textile materials (for example, carpets or fabrics for interior parts such as vehicles), and are combined with yarns having different surface irregularities or yarns having different hues. Appears a different color effect.

  Patent Document 3 describes a stuffed object (for example, a futon) that contains stuffed cotton made of a composite entangled yarn composed of a core yarn and a floating yarn.

JP 2009-299244 A JP-A-6-65828 JP 2012-67429 A

  However, although the processed yarn described in Patent Document 1 has a span-like texture and stretchability, the bulkiness is not sufficient. Moreover, although the decorative yarn described in Patent Document 2 is suitable for producing a different color effect, the bulkiness is not sufficient. Furthermore, in the composite entangled yarn used for the stuffed object described in Patent Document 3, both the core yarn and the floating yarn are raw raw yarns. For this reason, the floating yarn is loosely fixed to the core yarn, and both are easily displaced, and the bulkiness is insufficient. That is, the processed yarns described in Patent Documents 1 to 3 are insufficient in bulkiness to be used for stuffed cotton or the like. In particular, in Patent Document 3, when the stuffed object is continuously used, there is a problem that the bulkiness is reduced due to the looseness of the stuffed cotton or the bias at the time of filling.

  The present invention eliminates the disadvantages of the prior art, and provides a taslan processed yarn that has a soft texture and appropriate stiffness, and maintains bulkiness even when used continuously. For the purpose.

  As a result of intensive studies to solve the above-described problems, the present inventors have arranged a taslan composite yarn obtained by taslan processing a false-twisted multifilament yarn as a core yarn, and a floating yarn with respect to the core yarn. As a false twisted multifilament yarn is further processed, it has a soft texture and moderate stiffness, despite its thick fine interlaced yarn, and is bulky even when used continuously The present inventors have found for the first time that a Taslan processed yarn can be maintained, and has reached the present invention.

That is, the gist of the present invention is the following (1) to (6).
(1) A taslan processed yarn having a plurality of bulky parts having a total fineness of 500 to 4000 dtex and a height of 0.3 to 3.0 cm. The taslan processed yarn has a sheath yarn fixed by a mixed tangling by a further taslan processing to a taslan composite yarn in which a floating yarn is fixed by a mixed tangling by a taslan processing around a core yarn. The core yarn is false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a, and the float is false twisted multifilament yarn B composed of a plurality of thermoplastic fibers b, The sheath yarn is false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c.

(2) The single yarn fineness of the false twisted multifilament yarn A is 2-30 dtex, thicker than the single yarn fineness of the false twisted multifilament yarn B, and the single yarn fineness of the false twisted multifilament yarn A The taslan processed yarn of (1), wherein the difference between the single yarn fineness of the false twisted multifilament yarn B is 1 to 20 dtex.

(3) The taslan processed yarn according to (1) or (2), wherein the single yarn fineness of the false twisted multifilament yarn B is 0.1 to 20 dtex.
(4) The taslan processed yarn according to any one of (1) to (3), wherein the thermoplastic fiber a, the thermoplastic fiber b, or the thermoplastic fiber c is a polyester fiber or a polyamide fiber.

(5) A stuffed cotton comprising the taslan processed yarn of any one of (1) to (4).

(6) A method for producing a taslan processed yarn according to any one of (1) to (4). False twisted multifilament yarn A composed of a plurality of thermoplastic fibers b as float yarns with the false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a as a core yarn. Using the yarn B, taslan processing is performed to obtain a taslan composite yarn, and then the taslan composite yarn and false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c as sheath yarns, After heat treatment at ˜220 ° C., the taslan nozzle was introduced into a taslan nozzle so that the difference in overfeed rate between the taslan composite yarn and the sheath yarn was 500-1500%, and taslan was applied at an air pressure of 0.1-0.3 MPa. Apply processing.

  According to the present invention, it is possible to obtain a taslan-processed yarn having a soft texture and a firm stiffness and maintaining bulkiness even when continuously used. Such a taslan-processed yarn is suitably used as stuffed cotton stored in clothing (for example, a jacket), bedding (for example, a futon or pillow), or (for example, a cushion or stuffed animal), and the like. Furthermore, according to the production method of the present invention, such a Taslan processed yarn can be produced with good operability.

It is a schematic side view which shows an example of the taslan processing thread | yarn of this invention. It is the schematic which shows an example of the manufacturing process of the taslan processed yarn of this invention. It is the schematic which shows an example of the manufacturing process of the false twist processing multifilament yarn contained in the taslan processing yarn of this invention. 2 is a photograph of a side surface of a taslan processed yarn obtained in Example 1. FIG. 4 is a photograph of a side surface of a taslan processed yarn obtained in Comparative Example 2.

Hereinafter, the present invention will be described in detail.
The taslan-processed yarn of the present invention is a taslan composite yarn in which floating yarn is fixed around the core yarn by mixed tangling by taslan processing, and sheath yarn is fixed by mixed tangling by further taslan processing. It is. The core yarn is a false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a, and the float is a false twisted multifilament yarn B composed of a plurality of thermoplastic fibers b. The sheath yarn is false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c. That is, the taslan processed yarn of the present invention includes three types of false twisted multifilament yarns A, B, and C having false twisting properties, and false twisted multifilament yarns A and B are subjected to taslan processing and a taslan composite yarn. The false twisted multifilament yarn C is further subjected to taslan processing with respect to this taslan composite yarn, and three types of multifilament yarns are fixed by mixed fiber entanglement by two taslan processings.

  By performing the taslan process twice to obtain a processed yarn having a total fineness in a specific range, the bulky portion is not excessively high, and the gaps between the filaments are large and uniform. As a result, when used as stuffed cotton, it is possible to obtain a taslan-processed yarn that is excellent in bulkiness and soft texture, has an appropriate stiffness, and has no looseness of the stuffed cotton and no bias in filling. In addition, the processed yarn obtained by performing the Taslan processing only once becomes bulky when used as stuffed cotton because the bulky portion becomes excessively high as shown in FIG. 5 and the open state between the filaments is poor. And unevenness at the time of filling is developed, and the bulkiness is inferior.

  With Taslan processing, when passing through a Taslan nozzle, a pressurized fluid (generally air) is sprayed to disturb the two types of yarn, and the fibers constituting the yarn are mixed and entangled with each other. This is fluid injection processing for obtaining a composite yarn composed of a core yarn and a sheath yarn (or float yarn). At this time, if the sheath yarn is supplied in an excessive amount with respect to the core yarn by significantly increasing the overfeed rate of the sheath yarn relative to the overfeed rate of the core yarn, the sheath yarn is lifted from the core yarn and is loop-shaped. A bulky part is formed.

  The total fineness of the taslan processed yarn of the present invention is 500 to 4000 dtex, preferably 1000 to 3500 dtex, and more preferably 1500 to 3000 dtex. When the total fineness of the taslan processed yarn is 500 dtex or more, the entanglement does not become excessively strong, so that the bulkiness and the texture are good. On the other hand, if the total fineness is 4000 dtex or less, it is not necessary to set the air pressure at the time of Taslan processing excessively high, so that the converging portion does not become excessive and the confounding does not become coarse, and further, the processing operability is improved. Excellent.

  The taslan composite yarn is a composite yarn including a core yarn and a float yarn, which are false twisted multifilament yarns, and these are mixed and entangled by taslan processing. By including the two false twisted multifilament yarns in the taslan composite yarn, the bulky portion does not become excessively high, the fiber opening property is good, and the taslan yarn with improved overall volume can be obtained. . The height of the bulky portion of the taslan composite yarn preferably has less variation than the height of the bulky portion of the taslan processed yarn, and is preferably 0.2 to 1.0 cm, for example. The number of the bulky portions is preferably 60 to 130 per 1 m. The total fineness of the Taslan composite yarn is preferably 200 to 400 dtex and more preferably 250 to 300 dtex in order to be more excellent in bulkiness or processing operability.

  The false twisted multifilament yarns A, B and C included in the taslan yarn of the present invention have false twist crimpability. For this reason, in the taslan processed yarn of this invention, the uneven | corrugated shape resulting from the crimp form by false twist expresses, fully opening the space | gap while maintaining the space | gap between filaments. Therefore, the entangled state between the filaments becomes good and the texture becomes soft. The crimp rate of false twisted multifilament yarns A, B, or C used in the production method of the present invention described later is preferably 20 to 60% in order to be more excellent in bulkiness or texture. % Is more preferable.

  The single yarn fineness of the false twisted multifilament yarn A is preferably 2 to 30 dtex, more preferably 4 to 25 dtex, and still more preferably 10 to 15 dtex. When the single yarn fineness of the false twisted multifilament yarn A is in the above range, the converging portion does not become too much, and the mixed fiber entanglement state with the false twisted multifilament yarn B becomes strong and difficult to shift. Since the space | gap in between is fully ensured, bulkiness and a texture become still better. In the present invention, the single yarn fineness of the false twisted multifilament yarn A is preferably larger than the single yarn fineness of the false twisted multifilament yarn B. It is preferably 1 to 20 dtex thicker than the yarn fineness, more preferably 2 to 15 dtex thick and even more preferably 5 to 12 dtex thick. With such a configuration, the mixed fiber entangled state becomes more stable, and a Taslan processed yarn that is superior in soft texture can be obtained. The single yarn fineness of the false twisted multifilament yarn B is preferably 0.1 to 20 dtex, more preferably 0.1 to 5 dtex, because the entangled state becomes better and the bulkiness and texture are superior. More preferably, it is 0.2-1 dtex.

  The single yarn fineness of the false twisted multifilament yarn C is preferably 0.1 to 2 dtex, more preferably 0.2 to 1.8 dtex in order to further stabilize the mixed-entanglement state. In order for the mixed fiber entangled state to become more stable, the total fineness of the false twisted multifilament yarn C is preferably 100 to 300 dtex.

  FIG. 1 is a schematic side view showing an example of the taslan processed yarn of the present invention including a taslan composite yarn 21 and a sheath yarn 22. In FIG. 1, the height of the bulky portion of the taslan yarn is indicated by h, which means the height of the loop from the center core S in the axial direction of the taslan yarn. The height of the bulky portion (the height of the loop) is 0.3 to 3.0 cm and preferably 0.4 to 2.5 cm in order to have excellent unwinding properties and a good mixed fiber entangled state. More preferably, it is 0.5 to 2.0 cm. When the height of the bulky portion is in the above range, bulkiness suitable for stuffed cotton is exhibited, the filament opening property is good, and it can be easily wound up on a package or the like. The number of bulky parts is preferably 130 to 220 per 1 m.

  As thermoplastic fiber a, b, or c, a synthetic fiber is mentioned, for example, Among these, it is preferable that they are a polyester fiber or a polyamide fiber. The form of the thermoplastic fiber a, b or c may be a side-by-side type composite yarn, a modified cross-section yarn, a different shrinkage mixed yarn, or a hollow cross-sectional yarn. Furthermore, the functional fiber which has moisture absorption / release property, heat retention, etc. may be sufficient. Further, the number of filaments of the thermoplastic fibers a, b and c is preferably 8 to 500 in order to be more excellent in bulkiness, texture, or operational processability. Further, the elongation of the thermoplastic fibers a, b or c is preferably 70 to 150% in order to be more excellent in bulkiness or texture.

  False twisting multifilament yarns A, B, and C are false twisted by a conventionally known method. As a false twisting method, for example, a high speed disk false twisting method or a low speed pin false twisting method is employed.

  In the taslan-processed yarn of the present invention, the false twisted multifilament yarns A to C are used, and the taslan processing is performed twice. The taslan composite yarn and the sheath yarn, and the core yarn and the float yarn are used. However, it is sufficiently fixed by mixed fiber entanglement. Therefore, it is not necessary to fix by heat fusion or fixing with an adhesive, and a Taslan processed yarn having a soft texture and excellent bulkiness can be obtained.

  The taslan yarn of the present invention may be subjected to a flexible processing using, for example, a silicon resin as a post process. By such processing, slipperiness, texture, or bulkiness is further improved.

  The stuffed cotton of the present invention is composed of the above-described Taslan processed yarn of the present invention. The taslan-processed yarn of the present invention may be cut into a certain length to form stuffed cotton, or may be formed in the form of continuous yarn without cutting. When the form of the stuffed cotton is a continuous yarn, the continuous yarn may be regularly arranged on a fabric such as a futon, and then another fabric may be superimposed on the fabric and sewn.

  Examples of uses of the stuffed cotton of the present invention include garments such as jackets, bedding such as futons and pillows, and batting in daily necessities such as stuffed toys.

  Next, an example of a method for producing the taslan yarn of the present invention will be described with reference to FIG. FIG. 2 is a schematic diagram of steps showing an example of a method for producing a taslan processed yarn of the present invention. First, false twisted multifilament yarn A (Y1), which is a core yarn, is introduced from the first supply roller 1 to the Taslan nozzle 3, and false twisted multifilament yarn B (Y2), which is a floating yarn, is supplied to the second supply roller. 2 is supplied to the first taslan nozzle 3 and entangled with the false twisted multifilament yarn A (Y1) between the first take-up roller 4 (taslan processing region), and taslan composite yarn (Y3) having an entanglement form ) Is obtained (first taslan processing).

  Next, the taslan composite yarn (Y3) is heat-treated using a heat treatment heater 5 installed between the first take-up roller 4 and the second take-up roller 7, and then introduced into the second taslan nozzle as a core yarn, and sheath yarn The false twisted multifilament yarn C (Y4) is drawn by the third supply roller 8, heat-treated by the heat treatment heater 9, introduced into the second taslan nozzle 6, and between the second take-up roller 7 (taslan machining area) The taslan composite yarn (Y3) and taslan are processed by taslan processing (second taslan processing) to produce the taslan processed yarn of the present invention. The obtained taslan-processed yarn may be wound around the package 12 by the winding roller 11 via the slit traverse guide 10 after passing through the second take-up roller 7.

  That is, in the production method of the present invention, first, false twisted multifilament yarn A (Y1) is used as a core yarn, false twisted multifilament yarn B (Y2) is used as a floating yarn, and taslan processing is performed. A taslan composite yarn (Y3) is manufactured (first taslan processing). Next, the taslan processed yarn of the present invention is obtained by using the taslan composite yarn (Y3) as the core yarn and the false twisted multifilament yarn C (Y4) as the sheath yarn, heat-treated and then taslan processed (second) Taslan processing).

  In the first taslan processing, as the overfeed rate of the core yarn and the overfeed rate of the floating yarn, in order to set the total fineness of the taslan composite yarn and the height of the bulky portion of the taslan composite yarn within the above ranges, The overfeed rate is preferably 1 to 3%, and the float feed overfeed rate is preferably 20 to 100%. Furthermore, in the first taslan processing, it is preferable to adjust the air pressure to 0.1 to 0.3 MPa in order to improve the spreadability and form a bulky portion having an appropriate height.

  Then, the second taslan processing is performed, and the taslan composite yarn (Y3) and false twisted multifilament yarn C (Y4) as the sheath yarn are mixed and entangled to obtain the taslan processed yarn of the present invention. The preferable conditions for performing the second taslan processing stably and satisfactorily are as follows. The taslan composite yarn (Y3) is heat-treated at a temperature of 160 to 220 ° C. and supplied (introduced) to the taslan nozzle in an overfeed state of 0.5 to 2%. On the other hand, a false twisted multifilament yarn C (Y4) as a sheath yarn is heat-treated in a range of 160 to 220 ° C., and a taslan nozzle so that the difference in the overfeed rate of the sheath yarn with respect to the taslan composite yarn is 500 to 1500%. Supply (introduction). In the second taslan processing, the air pressure is adjusted to 0.1 to 0.3 MPa in order to make the spreadability better and to form a bulky portion having an appropriate height.

  In particular, in the second taslan processing, it is important to heat-treat the taslan composite yarn and the sheath yarn at a temperature of 160 to 220 ° C. By doing so, it is possible to suppress a change in the form of the taslan processed yarn, and it is possible to manufacture a taslan processed yarn having a large gap between the filaments and excellent in bulkiness. When the heat treatment temperature of the taslan composite yarn and the sheath yarn is in the above range, the overfeed rate can be set as high as 500% or more, so that the bulkiness can be expressed more easily. Furthermore, since the fusion between the supply yarns can be suppressed, the opening property between the filaments is not lowered, and the bulkiness is excellent.

  In other words, by adjusting the overfeed rate, air pressure, and heat treatment temperature during the taslan processing to the above ranges, a sufficient space between the filaments can be secured, and the bulky portion can be controlled within the above range. It can be an excellent taslan yarn.

  The method for producing a taslan processed yarn may be a series of processing methods as described above, or a double processing method (after winding a taslan composite yarn that has undergone the first taslan processing into a package, A method in which a Taslan composite yarn is pulled out from a package and used as a core yarn in processing may be used.

  When winding the taslan-processed yarn of the present invention obtained as described above, it is preferable to use a slit-type traverse guide because it can be stably wound. The size of the slit-type traverse guide is preferably 25 to 40 mm in height and 1 to 2 mm in width. When the size of the traverse guide is in the above range, the loop is not caught at the tip of the guide, so that thread breakage can be suppressed, and winding failure such as traversing or ear height is unlikely to occur.

  The false twisted multifilament yarn A, B or C can be produced by a known method. FIG. 3 is a process schematic diagram showing an example of manufacturing false twisted multifilament yarns A, B, or C by a high speed processing method.

  In the high speed processing method, for example, the supply yarn Y <b> 5 (that is, the thermoplastic fiber a, b, or c) is introduced into the supply roller 13. Examples of the supply yarn Y5 include a highly oriented undrawn yarn. Thereafter, the yarn is heat set by the heater 14, untwisted by the friction disk 15, subjected to false twisting, and taken up by the first take-up roller 16. In order to be able to process stably, it is preferable that the false twist processing speed shall be 500 m / min or more, and it is more preferable to set it as 600-800 m / min. Furthermore, for the same reason, it is preferable that the draw ratio is 1.4 to 1.8 times, the false twisting temperature is 200 to 350 ° C., and the twisting tension is 0.3 to 0.6 cN / dtex.

  Moreover, in order to stabilize false twisting workability, it is preferable that K value at the time of false twisting shall be 0.6-0.9. The K value in the present specification is a calculated value represented by (untwisting tension) / (twisting tension).

  Examples of the material of the friction disk 15 include polyurethane or ceramic. The thickness of the friction disk 15 may be 5 to 10 mm, for example. Examples of the heater 14 include a contact type heater and a high efficiency point contact type heater.

  Continuously, the false twisted multifilament yarn drawn from the first take-up roller 16 is processed using the heat treatment heater 17 and the second take-up roller 18 while adjusting the processing tension to 30 to 150 g. be able to. Then, it may be wound around the package 20 by the winding roller 19.

Alternatively, false twisted multifilament A, B or C may be produced by a low speed false twist method. In the low-speed false twisting method, for example, a low-speed pin can be used, and the following conditions can be selected. That is, a processing speed of 90 to 150 m / min, a draw ratio of 1.4 to 1.8 times, a false twisting temperature of 150 to 200 ° C., a false twisting coefficient of 18000 to 26000 / dtex ^1/2 , a twisting tension of 0.2 cN / dtex or more. Or the ratio of the processing tension is preferably 2.0 to 4.0.

  You may heat-process false twisted multifilament A, B, or C at 150-200 degreeC, for example using a non-contact type heater.

  Hereinafter, the present invention will be described in detail according to examples. The present invention is not limited to this example.

The measurement method or evaluation method of the physical property values in this specification is as follows.
(1) Fineness It measured based on description of JIS L-1013.

(2) Crimp rate Using a measuring machine having a frame circumference of 1.125 m, a casserole with a winding number of 5 was prepared and left standing all day and night in a state suspended from a stand. Next, a load of 0.000147 cN / dtex (load 1) was applied to the casket, and after placing in boiling water for 30 minutes of wet heat treatment, moisture was lightly removed with a filter paper and left to air-dry for 30 minutes. Next, with the load 1 applied, a light load (load 2) of 0.00177 cN / dtex was further applied, and the length A of the cassette was measured. Next, only the load 2 was removed, a heavy load of 0.044 cN / dtex was applied, and the crimp rate was calculated using the following formula, which measured the length B of the casket.
Crimp rate (%) = [(B−A) / B] × 100

(3) Height and number of bulky parts of Taslan processed yarn Ten meters of Taslan processed yarn were unwound from the package, and three bulky parts were selected at random while visually checking with a ruler. Next, the selected part is pasted on a black mount, and a glass plate is placed thereon and fixed, and the height h of the bulky part is visually measured and the distance from the axial center S of the taslan processed yarn is measured. The height of the bulky part was determined. Furthermore, a 1 m long portion was selected at random, and the number of bulky portions per 1 m was determined.

(4) Bulkiness of Taslan processed yarn From the obtained Taslan processed yarn, a casserole with 50 turns was prepared using a measuring machine having a frame circumference of 1.125 m. This casserole was evaluated according to the following criteria by tactile sensation.
(Double-circle): The whole has a volume and bulkiness is especially favorable.
◯: The entire volume is high and the bulkiness is good.
Δ: Bulkiness is normal.
X: Poor volume and poor bulkiness.

(5) Texture of Taslan Processed Yarn The cassette prepared in (4) above was evaluated according to the following criteria based on tactile sensation.
A: The texture is soft and particularly good.
○: The texture is soft and good.
Δ: The texture is normal.
X: The texture is too hard and bad.

(6) Processing operability The Taslan processed yarn at the time of winding was visually confirmed and evaluated according to the following criteria.
○: It is wound up stably without causing trouble (for example, thread breakage or cheese).
X: Even if it cannot wind up or can wind up, a trouble generate | occur | produces.

(7) Bulkiness of stuffed cotton 60 g of the obtained taslan processed yarn was cut to a length of 5 to 7 cm and packed in a cushioning material (size 30 cm × 30 cm). This was evaluated according to the following criteria by tactile sensation.
A: Overall there are moderate stiffness and volume, and the bulkiness is particularly excellent.
○: moderate stiffness and volume and good bulkiness.
Δ: Bulkiness is normal.
X: Moderate stiffness or volume is poor, the bulkiness is poor, and there is a bias of cotton filling during filling.

Example 1
False twisted multifilament yarn A (single yarn fineness 5.0 dtex, crimp rate 45%, 120 dtex 24 filament) made of polyester fiber as core yarn, false twisted multifilament yarn B (single yarn made of polyester fiber as float yarn) Using a yarn fineness of 2.0 dtex, a crimp rate of 35%, and a 145 dtex 72 filament), the first taslan processing was performed under the conditions shown in Table 1 to obtain a taslan composite yarn having a total fineness of 320 dtex (the first Taslan processing).

  Continuously, two false twisted multifilament yarns C (single yarn fineness 1.5 dtex, crimp rate 37%, 110 dtex 72 filaments) made of polyester fibers as sheath yarns were obtained for the obtained Taslan composite yarn. The second taslan processing was performed under the conditions shown in Table 1 by using the tantalum, and the taslan processing yarn of Example 1 was obtained. The false twisted multifilament yarns A, B and C were obtained by the high speed disk false twist method. For the first taslan processing and the second taslan processing, a taslan nozzle (T341) manufactured by Heberline was used. The obtained taslan processed yarn was wound up by operating a slit-type traverse guide (manufactured by Yuasa Yidodo Co., Ltd., diagram number: A401017) at 20 times / minute.

Example 2
Except for changing the total fineness and number of false twisted multifilament yarn C as sheath yarn to 115 dtex 372 filament, changing the crimp rate to 25%, and changing the conditions as shown in Table 1. The Taslan processed yarn of Example 2 was produced in the same manner as Example 1.

Example 3
The number of filaments of false twisted multifilament yarn A as the core yarn is changed to 10 and the single yarn fineness is changed to 12.0 dtex, the crimp rate is changed to 35%, and the conditions as shown in Table 1 are set. A Taslan processed yarn was produced in the same manner as in Example 2 except for the change.

Example 4
Example except that the false-twisting multifilament yarn B as a float is changed to a total fineness of 144 dtex and a filament count of 480, the single yarn fineness is changed to 0.3 dtex, and the crimp rate is changed to 30% In the same manner as in No. 2, Taslan processed yarn was produced.

Example 5
A taslan processed yarn was produced in the same manner as in Example 1, except that the core yarn and the float yarn were reversed to obtain a taslan composite yarn.

  The taslan processed yarns obtained in Examples 1 to 5 were excellent in bulkiness and soft texture, and had no troubles such as yarn breakage during winding, and were excellent in processing operability. Further, when it was made into stuffed cotton, it had bulkiness and moderate stiffness, and there was no bias during filling. In particular, the taslan processed yarn obtained in Examples 1 to 4 was superior in bulkiness and texture. The taslan processed yarn obtained in Example 3 was superior in bulkiness because the core yarn had a thicker fineness and the fineness difference between the core yarn and the float was larger. In the Taslan processed yarn obtained in Example 4, the fineness of the false twisted multifilament yarn B is within the preferred range of the present invention, and the float yarn is composed of microfibers, so that it also has a powder touch texture. It was.

  FIG. 4 is a photograph of the taslan processed yarn obtained in Example 1. As can be seen from FIG. 4, it can be understood that the obtained taslan processed yarn has a uniform loop formed without shifting the yarn, is excellent in bulkiness, has a soft texture and an appropriate stiffness. .

Comparative Example 1
Instead of false twisted multifilament yarn A, a stretched polyester yarn (single yarn fineness 5.0 dtex, 120 dtex 24 filaments) without crimping is used, and instead of false twisted multifilament yarn B, crimping is given. Non-crimped polyester yarn (single yarn fineness 1.5 dtex, 110 dtex 72 filament) instead of false twisted multifilament yarn C, using polyester drawn yarn (single yarn fineness 2.0 dtex, 145 dtex 72 filament) A Taslan processed yarn of Comparative Example 1 was obtained in the same manner as Example 1 except that the conditions were changed as shown in Table 1. Since the multifilament yarn that was not false twisted was used for the taslan processed yarn obtained in Comparative Example 1, yarn slack occurred during the second taslan processing, yarn breakage occurred, and the bulkiness was poor. Moreover, since the crimpability was not expressed, the soft texture was insufficient.

Comparative Example 2
Example 1 except that the first taslan processing was not performed, the core yarn (Y1) was supplied from the first take-up roller (4), and only the second taslan processing was performed with the sheath yarn (Y4). Thus, a taslan processed yarn of Comparative Example 2 was obtained. The Taslan processed yarn obtained in Comparative Example 2 had no stiffness, and troubles in winding (thread breakage, cheese, etc.) occurred and the processing operability was inferior. FIG. 5 is a photograph of the Taslan processed yarn obtained in Comparative Example 2. As apparent from FIG. 5, it can be understood that the obtained processed yarn has an excessive loop, and the opened state between the filament yarns is poor.

Comparative Example 3
In the second taslan processing, one false twisted multifilament yarn C (50 dtex 36 filament, crimp rate 32%) was used as the sheath yarn, and the overfeed rate was set low as 170%, as shown in Table 1. A Taslan processed yarn of Comparative Example 3 was obtained in the same manner as Example 1 except that the conditions were changed. The taslan processed yarn obtained in Comparative Example 3 was too thin and too entangled, resulting in poor bulkiness and an excessively hard texture.

Comparative Example 4
A comparative example was made in the same manner as in Example 1 except that three false twisted multifilament yarns C (130 dtex84 filament, crimp rate 37%) were used as the sheath yarn, and the conditions were changed as shown in Table 1. 4 Taslan yarn was obtained. The taslan-processed yarn obtained in Comparative Example 4 had a total fineness that was too thick and the entanglement was rough, and the loop was uneven and excessive. Therefore, it was not able to wind up to a package and was inferior to processing operativity.

Comparative Example 5
In the second taslan processing, a taslan yarn of Comparative Example 5 was obtained in the same manner as in Example 1 except that the heat treatment temperature was lowered to 150 ° C. In Comparative Example 5, the overfeed rate of the sheath yarn was not sufficiently increased, and the obtained taslan-processed yarn had poor bulkiness and a hard texture.

21 Taslan composite yarn 22 Sheath yarn (false twisted multifilament yarn C)
Y1 core yarn (false twist multifilament yarn A)
Y2 Floating yarn (false twist multifilament yarn B)
Y3 Taslan composite yarn Y4 sheath yarn (false twisted multifilament C)
DESCRIPTION OF SYMBOLS 1 1st supply roller 2 2nd supply roller 3 1st Taslan nozzle 4 1st take-up roller 5 Heat treatment heater 6 2nd Taslan nozzle 7 2nd take-up roller 8 3rd supply roller 9 Heat treatment heater 10 Slit type traverse guide 11 Take-up roller 12 package Y5 supply yarn 13 supply roller 14 false twist heater 15 friction disk 16 first take-up roller 17 heat treatment heater 18 second take-up roller 19 take-up roller 20 package

Claims (6)

A taslan processed yarn having a plurality of bulky parts having a total fineness of 500 to 4000 dtex and a height of 0.3 to 3.0 cm,
The taslan processed yarn is a taslan composite yarn in which floating yarn is fixed by mixed fiber entanglement by taslan processing around the core yarn, and sheath yarn is fixed by mixed fiber entanglement by further taslan processing,
The core yarn is false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a, and the float is false twisted multifilament yarn B composed of a plurality of thermoplastic fibers b, The taslan yarn, wherein the sheath yarn is a false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c.
The single yarn fineness of the false twisted multifilament yarn A is 2 to 30 dtex, and thicker than the single yarn fineness of the false twisted multifilament yarn B,
The taslan processed yarn according to claim 1, wherein a difference between a single yarn fineness of the false twisted multifilament yarn A and a single yarn fineness of the false twisted multifilament yarn B is 1 to 20 dtex.
The taslan processed yarn according to claim 1 or 2, wherein the single yarn fineness of the false twisted multifilament yarn B is 0.1 to 20 dtex.
The taslan processed yarn according to any one of claims 1 to 3, wherein the thermoplastic fiber a, the thermoplastic fiber b, or the thermoplastic fiber c is a polyester fiber or a polyamide fiber.
A stuffed cotton comprising the taslan processed yarn according to any one of claims 1 to 4.
A method for producing the taslan processed yarn according to any one of claims 1 to 4,
False twisted multifilament yarn A composed of a plurality of thermoplastic fibers b as float yarns with the false twisted multifilament yarn A composed of a plurality of thermoplastic fibers a as a core yarn. Using the yarn B, taslan processing is performed to obtain a taslan composite yarn, and then the taslan composite yarn and false twisted multifilament yarn C composed of a plurality of thermoplastic fibers c as sheath yarns, After heat treatment at ˜220 ° C., the taslan nozzle was introduced into a taslan nozzle so that the difference in overfeed rate between the taslan composite yarn and the sheath yarn was 500-1500%, and taslan was applied at an air pressure of 0.1-0.3 MPa. A method for producing a taslan-processed yarn, characterized by performing processing.