JPH10237734A - Composite knot yarn and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite knot yarn optimal as a raw material for clothes excellent in sweat absorption and quick dryness, excellent in touch and good in wearing touch, especially for producing woven or knitted fabrics for woman clothes, and to provide a method for producing the same. SOLUTION: In this composite yarn comprising an inner layer (core) consisting mainly of (A) multi-filaments and an outer layer (sheath) consisting mainly of staple fibers, the single filament denier dA of the multifilaments A forming the inner layer of the composite yarn, the number FA of the constituting single filaments and the number T of the twists satisfy the inequalities: dA<=1.0, FA>=100 and T<=200, respectively. The single fiber denier dB of the staple fibers B forming the outer layer of the composite yarn, and the number SB of the constituting single fibers satisfy the inequalities: 5.0>=dB>=1.4 and SB>=40, respectively. The whole constituting denier ratio DA/DB of the multifilament yarn A and the staple fibers B is (20-50)/(80-50). Further, the multifilaments A and the staple fibers B are contained in a mutually mixed state in a boundary layer region between the inner and outer layers of the composite yarn, and a part of the staple fiber B are interlaced with the multifilaments A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite tying yarn which is excellent in sweat absorbency, has a good texture and is comfortable to wear, and is particularly suitable as a knitted or woven fabric for women's clothing and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, women's clothing applications, especially dresses,
In thin clothing such as blouses and suits, many polyester filaments are used. Properties and textures that cannot be expressed only with polyester filament are combined with various staples, and are used for applications that take advantage of their respective characteristics. This is because various high-quality textures can be obtained, including silky textures such as drapability, touch, and gloss, which are the characteristics of polyester fibers. There wasn't much that could be considered from a point.

[0003] In order to provide a comfortable and comfortable clothing material, much research and development has recently been carried out, and the filament of one of the components constituting the composite spun yarn has been denierized to increase the flexural rigidity of the composite spun yarn. Japanese Patent Publication No. 61-69189 and Japanese Patent Publication No. Sho 61-69189 have been used as a method for imparting firmness and stiffness to the obtained fabric, and a method for imparting a lightweight and bulky feel to the fabric while having the same texture as a fabric made of natural spun yarn. As proposed in, for example, JP-A-63-12189, a composite spun yarn for clothing in which a hollow multifilament and a non-hollow multifilament are mixed has been developed. As disclosed in JP-A-7-118987, a monofilament having a hollow ratio of 10% or more and a fineness of 8 to 70 denier is used. Degree 3 denier or less complex combined filament yarn in which the multi-filament and fiber-mixing of and the like have been proposed are developed.

[0004] Ordinary polyester fibers are inherently hydrophobic and do not have a moisture absorbing effect, and the feeling of unevenness and stickiness when worn as clothing is somewhat improved by the design and design of the knitted fabric. There has not been much research on imparting sweat and water absorption. Japanese Patent Application Laid-Open No. Sho 62-28 discloses a method for imparting sweat and water absorption.
No. 246, a composite spun yarn in which a thermoplastic synthetic fiber multifilament is disposed in a core portion, a thermoplastic synthetic fiber staple fiber is disposed in an intermediate portion, and a natural fiber is disposed in an outer peripheral portion. Although the developed product is still inferior in quick-drying property, a hollow fiber having an opening (C-shape) as specified in JP-A-7-97745 has been proposed to further improve this defect. Core yarns in which a yarn is wound around the outer periphery of a mold cross-section yarn) have also been developed and proposed.

Further, as an attempt to improve sweat absorption and water absorption, a method using a specially shaped yarn having a special sectional shape having an open capillary on the fiber surface, as specified in JP-A-52-18918, has also been proposed. However, these irregularly shaped yarns have a defect that the cross section is easily compressed by external stress, the open capillary is crushed, and the durability of sweat absorption and water supply is inferior, and in order to further improve this defect, Invention specified in JP-A-62-53605 having a specific cross-sectional shape in which an opening provided in an outer peripheral portion is hardly crushed by external stress, and having an irregular cross-section in which filaments are hardly fitted when they come into contact with each other. And so on.

The inventor of the present invention has also disclosed in Japanese Patent Application Laid-Open No. 5-331732.
As disclosed in Japanese Unexamined Patent Publication No.
A multifilament having a denier of 100% or less is disposed in the inner layer, and a multifilament having a large single yarn denier on its outer periphery, a multifilament having a microporous surface in order to reduce the contact angle with sweat and water, and a bulky A hollow fiber is provided to impart swelling, swelling and lightness, and liquid phase sweat and water are quickly absorbed, transferred to the fine denier multifilament bundle at the core, and transferred to the outside via the capillary channel. We develop and provide fibers for clothing materials that have excellent sweat-absorbing properties and excellent quick-drying properties, which can be evaporated and scattered.

[0007]

However, these conventional materials have achieved the prima facie purpose in the improvement of the sweat absorption and the comfort, respectively, but the quick drying properties are insufficient or the sweat absorption is insufficient. However, there are some defects, such as insufficient durability in terms of comfort, or the unique texture of spun yarn, and it is not possible to satisfy all the required functions comprehensively. Because it is manufactured using a normal ring spinning machine, productivity is not good, and the core part is composed of multi-filament to play the role of transferring and discharging sweat and water absorbed to improve sweat absorption and quick drying Even in the case of the composite yarn thus produced, in the production method using a ring spinning machine, the multifilament bundle is inevitably subjected to strong twisting, so that the gap in the capillary passage in the multifilament bundle is reduced, and the capillary phenomenon is sufficiently utilized. Can not, sweat, water migration, emptying is reduced, there is a problem, such as can not be obtained the effect of the product as designed.

The present invention solves the above-mentioned problems and satisfies all the required functions. It has excellent sweat-absorbing properties, quick-drying properties, and excellent clothing comfort. It is intended to provide a manufacturing method.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a composite tying yarn having the following structure and a method for producing the same.
A composite tying yarn for clothing material with excellent comfort can be obtained.

That is, the constituent structure of the composite binding yarn is constituted as follows. (1) A core / sheath composite yarn composed of a multifilament (A) in the inner layer and short fibers in the outer layer. (2) The single fiber denier dA of the filament constituting the multifilament (A) forming the inner layer (core) portion of the composite yarn is dA ≦ 1.0, and the number FA of the constituent single fibers is FA ≧ 10.
0, the number of twists T ≦ 200. (3) Short fibers (B) forming the outer layer (sheath) of the composite yarn
Is set to 5.0 ≧ dB ≧ 1.4, and the number of constituent single fibers SB is set to SB ≧ 40. (4) The total constituent denier ratio DA / DB of the multifilament (A) and the short fiber (B) = 20-50 / 80-50.
And (5) The multifilament (A) and the short fiber (B) are mixedly present in the boundary layer region of the inner layer / outer layer of the composite yarn, and a part of the short fiber (B) is wrapped around the multifilament (A) and entangled. State.

2. Single filament denier dA is dA ≦ 1.0, the constituent single fiber FA is several FA ≧ 100, and the number of twists T is T ≦ 200. Denier dB is 5.0 ≧ d
The outer layer is a short fiber (B) in which B ≧ 1.4 and the number of constituent single fibers SB is SB ≧ 40, and the total constituent denier ratio DA / DB of the multifilament (A) and the short fiber (B).
= 20 to 50/80 to 50, the multifilament (A) and the short fiber (B) are mixedly present in the boundary layer region between the inner layer and the outer layer of the composite yarn, A part of the staple fiber (B) is configured to be wrapped and entangled with the multifilament (A), and the multifilament (A) and the staple fiber (B) are formed into a composite bundle to provide a sweat absorbing property and a quick drying property. An object of the present invention is to obtain excellent clothing fibers.

3. As a constituent element for imparting a particularly preferable effect, the multifilament (A) constituting the inner layer (core) portion of the composite tying yarn defined as described above is obtained by using a hot water shrinkage difference ΔSHW of ΔSHW ≦ 50% or less. By using polyester different shrinkage mixed yarns, the effect of sweat and water transfer and discharge can be further improved, and it is effective to manufacture materials (fibers) for durable, quick-drying and water-absorbent clothing with excellent durability. thing. 4. Further, as a constituent element for imparting a particularly preferable effect, the short fiber (B) in the outer layer (sheath) of the composite binding yarn is
It is effective to attain the object to constitute at least 30% or more of short fibers containing polyester fibers.
And disclosed.

Hereinafter, the significance, effect, role, and necessity of each component of the present invention configured as described above will be described in detail. (1) The setting of the conditions for the single fiber denier, the number of single fibers, the number of twists, and the like of the multifilament (A) constituting the inner layer (core) of the composite binding yarn is essential for achieving the object of the present invention. Significance, effect and role of single fiber denier dA ≦ 1 constituting the inner layer: As described above, in the present invention, the multifilament (A) forming the inner layer (core) is formed by sweat caused by capillary channels formed in the multifilament. , Which plays a role as a water transfer path and is a single fiber denier dA.
It is very important because it affects the degree and state of capillary channel generation in the multifilament and affects the ability to transfer and discharge sweat and water.

That is, the liquid phase sweat is transferred from the outer layer on the skin side to the inner layer by utilizing the capillary action caused by the ultrafine gap of the ultrafine fibers of 1 denier or less in the inner layer, and the heat of the liquid phase itself is removed and vaporized. Things. Here, in order to effectively generate the capillary phenomenon, it is necessary to reduce the denier of the single fiber to 1 denier or less. If the denier exceeds 1 denier, the number of capillary channels formed in the multifilament decreases, the function of playing the role decreases, and the transfer of sweat becomes difficult to occur. Desirable conditions are 0.9 denier or less, more preferably 0.8 to 0.1 denier. In addition, since the multifilament does not retain sweat and water, it retains sweat in the fiber gap, functions as a transfer and carry-out path, and removes heat from the sweat itself and vaporizes it. It is preferred, especially the use of polyester filaments.

In addition, the multifilament can be mixed with a different denier filament which is a fiber having a denier of 1 denier or more, and the retention of the formed capillary channel is better excluded than the case where the multifilament is composed of 100% filament of the same denier. However, if fibers of 1 denier or more are mixed, the main filaments of 1 denier or less are at least 10 to 60% by weight, preferably 15 to 40% by weight of the entire composite binding yarn in order to secure a capillary channel. It needs to be present. If the content is less than 10% by weight, the capillary phenomenon is unlikely to occur, and if the content is more than 60% by weight, it becomes difficult to diffuse the sweat, and the texture becomes loose. In addition, the multifilament is 3.5 g for maintaining the mechanical properties of the obtained product such as the post-process passability and the fabric properties.
/ D or more preferably. However, it is not limited to the case where the strength is retained by short fibers or other fibers.

Significance, effect and role of the number of single fibers constituting the inner layer ≧ 100: In the composite binding yarn of the present invention,
Although the number of constituent fibers depends on the total denier of the composite binding yarn, generally 100 or more fibers are required to secure a sufficient capillary path for transferring and discharging sweat and water, and the number of constituent fibers is 100. It is necessary to set the total fiber denier and the constituent single fiber denier of the composite binding yarn so as to satisfy the above conditions. This is because if the number of constituent fibers is less than 100, the transfer of liquid-phase sweat due to the capillary phenomenon does not progress in ordinary clothing.

Significance, effect and role of the number of twists T ≦ 200: In order to form many capillary channels by the multifilament constituting the inner layer so as to function effectively as a transfer and discharge path of sweat and water, the number of twists T ≦ 200 is required. Must be 200.
When the number of twists of the multifilament is T> 200, in a normal ring spinning, a strong twist must be added in order to form a yarn. Even if the composition is selected to be advantageous for forming capillary channels, no difference in filament length is exhibited, and the capillary channels generated by twisting are compressed and crushed, resulting in insufficient capillary phenomenon and voids between multifilaments. This is due to the deterioration of the ability to transport and discharge sweat and water.

(2) The conditions for the single fiber denier, the number of single fibers, and the like of the short fiber layer (B) forming the outer layer (sheath) of the composite binding yarn are essential for achieving the object of the present invention. . Significance, effect, and role of the single fiber denier regulation of the short fiber (B) forming the outer layer (sheath) portion of the composite yarn: In order to obtain a fiber for clothing material having the intended function, the short fiber (B) The single fiber denier needs to satisfy dB ≧ 1.4. If the constituent fiber denier is less than 1.4 denier, the transfer of liquid-phase sweat cannot be performed smoothly. Also,
Since the monofilament denier of the multifilament (A) constituting the core portion of the composite binding yarn is as thin as 1.0 denier or less, appropriate tension is applied to the composite binding yarn and a woven fabric for clothing obtained using the composite binding yarn. In order to maintain stiffness, such a single fiber denier setting is necessary. However, if it exceeds 5 denier, the texture of the fabric becomes too coarse and hard, and it becomes difficult to secure the number of fibers necessary for securing absorption and migration. Therefore, it is necessary to set it to 5 denier or less.

Short Fiber (B) Constituting Short Fiber (B) Constituting Outer Layer (Shell) of Composite Yarn Significance, Effect and Role of Single Fiber Number SB ≧ 40 Rules: Short fiber (B) constituting outer layer (sheath) Is
Sweat, sweat from the water generating part, sweat, water transfer of the composite binding yarn,
It plays a role of transferring to the multifilament (A) portion for carrying out, and further, when the sweat and water are transferred and carried out through the multifilament (A) portion to the place in contact with the outside air of a low humidity atmosphere, the short fibers ( B) Since it must have a function of re-transferring to the outer layer (sheath) portion and evaporating and scattering in the outside air, it aims to absorb sweat and water,
With the ability to transfer, evaporation, ensure the evaporation area necessary for scattering, and also to obtain a fiber for clothing material with the same appearance texture as spun yarn, in any cross section of the composite binding yarn, The short fibers (B) constituting the outer layer must completely cover the multifilaments (A) constituting the inner layer core. For this purpose, the short fibers (B) in each cross section are required.
It is necessary to set the number of single fibers ≧ 40. If the number of constituent single fibers of the short fiber (B) is as small as less than 40, the above-mentioned effect is not exhibited.

Further, in order to obtain a conjugated yarn excellent in moisture absorption and desorption properties, it is not preferable that the short fiber (B) constituting the outer layer (sheath) is composed only of the moisture absorbing fiber. It is necessary to mix with synthetic synthetic fibers. As the hygroscopic fiber for the short fibers constituting the outer layer portion, natural fibers such as cotton and hemp, and chemical fibers such as viscose rayon and polynosic can also be used. Also, as the hydrophobic fiber, various hydrophobic synthetic fibers, especially polyester fibers, etc. are used.
It is very suitable from the viewpoint of moisture absorption / release capacity.

The fiber length of the short fibers (B) constituting the outer layer portion (sheath portion) ensures the number of end fibers having an influence on water absorption, migration ability and moisture evaporation ability, and the core-forming multifilament (A) ) To give the desired binding capacity.
mm is preferable. If the fiber length is too long, the number of terminal fibers decreases, and if the fiber length is too short, the scattering of fibers increases and the binding becomes weak.

(3) The total denier ratio DA / DB of the multifilament (A) forming the inner layer (core) portion and the short fiber (B) forming the outer layer portion (sheath portion) is specified in the composite binding yarn. Is essential to achieve the purpose and to construct a woven fabric for clothing having excellent moisture absorption / desorption properties and excellent texture. A multifilament (A) that provides sufficient tensile strength, mechanical properties, and sweat and water transfer and discharge ability to the obtained composite tie yarn, and transfers sweat and water from sweat and water generation sources, and is a discharge path.
At the time when sweat and water are transferred to the outside of low-humidity clothing, efficiently re-transfer to the multifilament (A) part → short fiber (B) outer layer part (sheath part), and In order to have a function of releasing moisture, the total denier ratio DA / DB of the composite binding yarn is 20/50 / 80-5.
Must be 0. In addition, in order to make use of the characteristics of the short fibers and bind them with the short fibers, the short fibers are at least 20% by weight, preferably 30% by weight of the composite tie yarn.
% Or more.

At the boundary between the outer layer and the inner layer of the composite binding yarn, the multifilament (A) and the short fiber (B) must be partially mixed. This is when the outer layer monofilament is 1.
This is because when the short fibers having a denier of 4 denier or more and the multifilaments having a single fiber of the inner layer having a denier of 1.0 denier or less are clearly distinguished, the transfer of sweat at the boundary is not performed smoothly. The mixed state of multifilaments and short fibers is judged by the distribution of concentric circles on a micrograph taken at an appropriate magnification by cutting a composite tie yarn embedded in an appropriate resin into small pieces with a microtome and photographing the cross section at an appropriate magnification. I do.

In the composite binding yarn, as a preferable application means for securing a durable capillary channel, the mixing of different contractile fibers is effective, and the presence of the different contractile fibers is based on the difference in shrinkage of the multifilament. (A) Generates inter-fiber voids to give rise to bulges and prevents the filaments from sticking together and blocking the capillary channels, so it is extremely effective in improving the transfer and discharge performance and durability of the multifilament (A) portion. It is a target. However, if the difference in the shrinkage ratio of the fibers with different shrinkage ratios becomes too large, the interfiber space becomes too large, and the formation of the capillary channel due to the capillary phenomenon necessary for sweat and water transfer is adversely inhibited. The difference in hot water shrinkage between filaments must be 50% or less. More preferably, the actual yarn length difference in the fabric is preferably 10% or less.

In the composite tying yarn that satisfies the first and second aspects, the selection as defined in the third aspect is effective and possible as a preferable means for selecting. That is, as a preferable application means, the short fibers (B) constituting the outer layer (sheath) portion include sweat,
Sweat and water are transferred from the water generating section to the multifilament (A) section which transfers and carries out the sweat and water of the composite binding yarn, and further, the sweat and water pass through the multifilament (A) section to the outside air in a low humidity atmosphere. When transported to or out of a contacting part, the fiber must have the function of re-transferring to the short fiber (B) part and evaporating and scattering in the outside air. % Or more of polyester short fiber is effective in imparting and improving not only hygroscopicity but also moisture-absorbing property and quick-drying property to the obtained garment material and having firmness and firmness due to high Young's modulus. .

When the short fibers are made of polyester short fibers, it is desirable to use a knitted fabric having an intrinsic viscosity of 0.50 or less, preferably 0.48 or less, in order to prevent pilling. This is because the pilling of the spun yarn greatly depends on the intrinsic viscosity (knot strength), although it depends on the yarn form.

Further, in order to improve the absorption of sweat and give a dry touch feeling to the polyester fiber as necessary,
When a normal matting agent, such as finely divided fine ceramics or metal oxides having good dispersibility in titanium oxide or polyester fibers, is kneaded and subjected to alkali weight reduction treatment, the falling-off portions of the fine particles become fine pores on the surface of the polyester fibers. Becomes For the same reason, the use of a modified cross-section yarn as shown in FIG. 1 is also effective in terms of water absorption and the like.

As the polyester fiber in the present invention,
The main constituent unit is an ethylene terephthalate unit, and is usually a homopolyester, a copolyester or a polyester mixture containing 85 mol or more of an ethylene terephthalate unit. Terephthalic acid, the copolymerization components other than ethylene glycol, isophthalic acid, 2-6 naphthalene dicarboxylic acid, adipic acid, hibacic acid, oxalic acid, diethylene glycol, cyclohexane, dimethanol, P-oxybenzoic acid, or derivatives thereof can give. Needless to say, dyeing properties, functions, and the like can be improved for synthetic fibers such as nylon and acrylic by a modifier, copolymerization, or kneading depending on the purpose.

Further, the above polyester fibers may be combined with the above-mentioned different-dyeing materials, and as other examples, polyester filaments and short fibers of synthetic fibers such as acrylic, rayon, polynosic, cotton, hemp, wool, etc. The composite spun yarn which can be applied to a wide range of uses, such as enhancing the hetero-dyeing property, enhancing the tone, and further imparting the chambray effect, in addition to obtaining the above-mentioned properties, by combining the hetero-dying property with the natural fiber of Can be obtained. Become

In order to produce the composite binding yarn of the present invention, specifically, it is produced with high productivity using a binding spinning machine. FIG. 2 shows an apparatus (bundling spinning machine) for producing a composite bunched yarn of the present invention.
FIG. 3 is a schematic diagram showing the functions of the present binding spinning machine, where A is a multifilament, B is a sliver,
C is a composite binding yarn. The sliver B supplied through the guide 1 receives a predetermined draft between the front roller 4 via the back roller 2 and the middle roller 3. The multifilament A having 100 or more single-fiber deniers of 0.1 to 0.8 d to which a predetermined tension is applied and supplied by one tension adding control device is 40 or more of 1.4 d or more upstream of the ftund roller 4. Sliver B
It is introduced into the air entanglement device 5 through the ftund roller 4, twisted and untwisted by the pneumatic false twist nozzle 10, and the sliver made of short fibers wraps around the multifilament. The multi-filament is arranged in an entangled state, the multifilament is wound on the inner layer, the sliver is wound around the multifilament, and a part of the free short fiber end fibers is bound to form a composite tie yarn C arranged on the outer layer. It is pulled out by the belly roller 6 and wound around a cheese 8 driven by the roller 7 to produce a composite bonded yarn.

When a composite tie yarn is manufactured using such a binding spinning machine, unlike a method of manufacturing a core yarn using a spinning machine or the like, a large real twist is not added to the multifilament (A) constituting the core portion. Sweat, water transfer,
Not only is it possible to obtain a composite binding yarn having a high ability to transport and discharge sweat and water, but also to obtain a composite binding yarn having high sweat and water performance, without breaking the capillary path in the multifilament (A), which is the discharge path, by twisting. The twisting and the entanglement action are added by the high-pressure airflow of the false twist nozzle in the above, the sliver made of short fibers wraps the multifilament, and the multifilament (A) forming the core portion and the short fiber (B) forming the sheath portion In the boundary region between the two, the two are arranged in a state of being entangled and entangled with each other, and the composite tie yarn C in which the ends of the short fibers are tied into a multifilament can be efficiently produced.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described specifically with reference to examples and comparative examples. However, the present invention is not limited to these examples and is described in the claims. It can be implemented with appropriate changes within the scope of
Needless to say, all of them are included in the present invention. Example 1 Toyobo ester filament (70d / 21) manufactured by Toyobo Co., Ltd. was used as multifilament A.
0f, twist number 18 T / m), and a sliver B of Toyobo Tough Cell manufactured by Toyobo Co., Ltd.
d, fiber length 32 mm cut), and using a Murata Jet Spinner MJS binding spinning machine (air jet spinning machine) manufactured by Murata Machinery Co., Ltd., an air false twist nozzle (Murata Machinery Co., Ltd.) Pressure: 4.5 kg / cm ² G, draw-out roller speed = 150 m / min to produce a composite tie yarn 30Ne (English cotton count), woven into a twill structure as usual, dyed and finished, and have a warp density of 98. Book / in. Weft density 82 yarns / in. Finished. The tension of the multifilament was 10 g / Y.

The resulting fabric was excellent in the natural nature of short fibers, bulkiness, warm taste, and firmness, stiffness and drape. Further, when a wear test was performed with a blouse, the maximum humidity in the clothes was 56.5%, the stuffiness in the clothes was small, the moisture absorption and desorption properties were excellent, the comfort was comfortable, and the comfort was excellent. . Also, multifilament A
Was present in the core of the composite binding yarn in a uniform bundle, and the binding state of the binding fibers in the sheath was good in the fiber longitudinal direction, and it was strong against sword and had good processability. In addition, the comfort range viewed from the comfort when wearing the fabric is 50.
± 10%.

[Example 2] The multifilament A of Example 1 was a Toyobo ester filament (50 d / 120 f, twist number 18 T / m) manufactured by Toyobo Co., Ltd., and the sliver B was a Toyobo manufactured by Toyobo Co., Ltd. Sliver of ester (containing 2% of carion as a micropore forming agent) (2.0
d, fiber length 32 mm cut, intrinsic viscosity = 0.48), except that the composite tie yarn 3 was changed in the same manner as in [Example 1].
0Ne (English cotton count), weaving the fabric, 20%
The fabric was finished by dyeing and finishing after the alkali weight was reduced.

The obtained fabric was excellent in the natural natural feeling, bulkiness and warmness of short fibers, and also excellent in firmness, stiffness and drapeability, as in [Example 1]. The maximum humidity in the garment is 50.5%, and there is no stuffiness in the garment, excellent moisture absorption and desorption, and not only comfortable comfort, but also fine grooves on the surface of the outer layer constituting fibers of the composite binding yarn. It became a dry touch, and was particularly popular as a summer material. Furthermore, since the sliver-constituting ester staple fiber is composed of a polyester having a limiting viscosity of 0.48 and a low degree of polymerization, the occurrence of pilling, which is a problem in the polyester fiber cloth, is 4.5 class [JIS L 1076-92].
A method (ICI method)].

Example 3 The multifilament A of Example 1 was a Toyobo ester filament (50d / 98f), twist number 190 T / m, manufactured by Toyobo Co., Ltd., and the sliver B was Toyobo manufactured by Toyobo Co., Ltd. Ester sliver (1.4 d, fiber length 28 mm cut, intrinsic viscosity = 0.4
Except for changing to 5), a composite tie yarn 30Ne (English cotton count) was produced in the same manner as in [Example 1], the fabric was woven, and dyed after 25% alkali weight loss.

The obtained fabric has a natural feeling of natural short fibers and warmness, and the core yarn is twisted as in [Example 1], so that it is excellent in firmness, stiffness, drape and tightness. Became. Further, when a wear test was performed with a blouse, the maximum humidity in the clothes was 53.5%, and the clothes had no stuffiness, had excellent moisture absorption and desorption properties, and were comfortable to wear.

[Comparative Example 1] In Example 2, the multifilament A was changed to a polyester multifilament (50d / 36f), the number of twists was also changed to 60 T / m, and the single fiber denier of the sliver B was changed to 1 The same procedure as in Example 2 was repeated except that the denier was changed to 2.0 denier, the fiber length was cut to 28 mm, and the intrinsic viscosity was changed to 0.60. When the performance was evaluated by a wear test, the maximum humidity in the clothes was 61.5%, the clothes had a stuffy feeling, the moisture absorption and desorption properties were poor, the comfort was a little uncomfortable, and the natural feeling was natural. Despite the bulkiness and warm taste, the sliver single yarn denier became thinner, resulting in inferior firmness and elasticity. Since the ring is deteriorated to 2.0 grade and the number of twists of the multifilament is as large as 60 T / m, in the composite tying yarn manufacturing process, the mixing at the boundary is poor, and the multifilament and the staple are separated and present. The entanglement of the yarn was reduced, the yarn was squeezed by a warper, a slab / nep was generated, and the yarn was liable to be broken, resulting in a problem in productivity.

Comparative Example 2 In Example 2, the multifilament A was changed to a polyester multifilament (45d / 512f), the number of twists was changed to 300 T / m, and the single fiber denier of the sliver B was changed to 1. Except that the limiting viscosity was changed to 0.60 at 0 denier, a composite tie yarn and a fabric were prepared in the same manner as in [Example 1], and the performance of a product obtained by trial production of a blouse was evaluated by a wear test. The maximum humidity in clothes is 63.5%. Although it has natural natural feeling, bulkiness and warm taste, it is inferior in moisture absorption and desorption and has an unpleasant feeling of wearing. Since the denier was thin, there was no firmness and stiffness, and the pilling properties were extremely high in intrinsic viscosity, and were poor at 2.0 grade.

Comparative Example 3 In Example 2, the multifilament A was changed to a polyester multifilament (50d / 8f), the number of twists was changed to 10 T / m, and the single fiber denier of the sliver B was changed to 1 Except that the intrinsic viscosity was changed to 0.48 and the intrinsic viscosity was changed to 0.48, a composite binding yarn and a fabric were prepared in the same manner as in [Example 2], and a wear test was performed on the performance of a product obtained by trial production of a blouse. As a result, the maximum humidity in the garment was 63.5%, and the composition ratio of short fibers was as large as 83.1%, so that it had a spun yarn-like texture, and although it had a natural natural feeling, bulkiness and warm taste, Inferior in moisture absorption and desorption, the feeling of stuffiness when worn is not good,
Since the number of filaments of the multifilament was as low as 8, the denier of the single yarn was large and the texture was rough and hard.

The products obtained in the examples and comparative examples were evaluated as follows. (1) Hot water shrinkage (SHW) Measurement and evaluation were performed according to JIS-L-1018 (1992). That is, the initial load 1 /
Take a wrapped skewer 8 times with 10g / denier and add 1 /
A load of 30 g / denier is applied and its length l ₀ (mm)
Is measured. Then remove the load, 1/1000
g / denier under a load of 3 mm in boiling water.
Soak for 0 minutes. After that, the scallop is taken out from the boiling water, and after cooling, a load of 1/30 g / denier is again applied to measure the length l ₁ (mm). Hot water shrinkage (SHW)
Is calculated by the following equation. SHW = (l ₀ −l ₁ ) × 100 ÷ ₁₀ (%) (2) Intrinsic viscosity 20 ° C. ± 0.5 ° C. using an equal weight mixture of phenol and tetrachloroethane as a solvent using an Ubbelohde viscometer.
The viscosity ηSP / C is obtained under the constant temperature condition of, the ηSP / C is plotted against the solution concentration C, and the ηSP / C is extrapolated from C → 0. (3) Maximum humidity in clothes (comfortability) Climate simulation device in clothes (Japanese Patent Application Laid-Open No. 58-211)
64, the environmental conditions in the simulation apparatus were set at 20 ° C., 65% RH, and the simulated skin temperature was 35 ° C., and the evaluation was performed assuming that one game shirt was worn.

[0042]

Since the present invention is constructed as described above, the multifilament and the sliver are combined with each other at high productivity using a binding spinning machine, and sweat and water comprising the multifilament are formed in the inner layer (core). It has an appropriate capillary channel for transferring and unloading, and the outer layer (sheath portion) has a tissue structure in which short fibers that absorb sweat and water from sweat and water generation places and are transferred to the core discharge channel are entangled and wound. It is excellent in moisture release, its durability is excellent and it has excellent sensation without weariness.It has a natural feeling of spun yarn, bulkiness, warm taste, and furthermore, elasticity,
The remarkable effect that a composite yarn for clothing material excellent in drape property can be obtained is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a constituent filament of a multifilament used in the present invention.

FIG. 2 is a schematic diagram of a binding spinning machine (air jet spinning machine).

[Explanation of symbols]

 Reference Signs List A Multifilament B Sliver 1 Sliver supply guide 2 Back roller 3 Middle roller 4 Front roller 5 Air entanglement device 6 Extraction roller 6 7 Winding friction roller 8 Winding cheese 10 Pneumatic false twist nozzle

Claims (6)

[Claims] In a composite yarn in which an inner layer portion is mainly composed of a multifilament (A) and an outer layer portion is mainly composed of short fibers, a single filament constituting a multifilament (A) forming an inner layer portion of the composite yarn is used. Fiber denier d
A is dA ≦ 1.0, the number of constituent single fibers FA is FA ≧ 100,
The number of twists T satisfies T ≦ 200, and the single fiber denier dB of the short fiber (B) forming the outer layer of the composite yarn is 5.0 ≧ dB.
≧ 1.4, the number SB of constituent single fibers is SB ≧ 40, and the total constituent denier ratio DA / DB of the multifilament (A) and the short fiber (B) is 20/50 / 80-50, and The multifilament (A) and the short fiber (B) are present in the boundary layer region between the inner layer and the outer layer of the composite yarn, and a part of the short fiber (B) is wrapped around the multifilament (A). A composite binding yarn characterized by the following. 2. At least a multifilament (A)
2. The composite binding yarn according to claim 1, comprising a polyester different shrinkage mixed fiber having a hot water shrinkage difference (ΔSHW) of ΔSHW ≦ 50% or less. 3. The short fiber (B) contains at least 30% or more of polyester fiber.
3. The composite binding yarn according to item 1. 4. The filament monofilament denier dA is d
A ≦ 1.0, the number of constituent single fibers FA is FA ≧ 100, the number of twists T
Is a multifilament (A) having T ≦ 200 as the inner layer, and the single fiber denier dB of the short fiber (B) is 5.0 ≧ dB.
≧ 1.4, the short fiber (B) whose number of constituent single fibers SB is SB ≧ 40 is the outer layer, and the multifilament (A)
And denier ratio DA / DB = 20 of the total composition of staple fibers and short fibers (B)
５０50 / 80〜50, the multifilament (A) and the short fiber (B) are mixedly present in the boundary layer region between the inner layer and the outer layer of the composite yarn,
A method for producing a composite tie yarn, characterized in that a part of the short fiber (B) is wound around and entangled with the multifilament (A). 5. The multifilament (A) comprises:
The method for producing a composite tie yarn according to claim 4, comprising a polyester different shrinkage mixed yarn having a difference in hot water shrinkage of △ SHW ≦ 50% or less. 6. The short fiber (B) contains at least 30% or more of polyester fiber.
3. The method for producing a composite tie yarn according to item 1.