JP3379196B2 - Mixed fiber composite yarn and woven / knitted fabric using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixed fiber composite yarn having a dry peach-like soft touch, and more specifically, it has a smoothness due to a water absorption effect different from the conventional peach-like touch with a slimy feel. TECHNICAL FIELD The present invention relates to a mixed fiber composite yarn and a woven / knitted fabric which are suitable for a woven fabric having a soft feel and a dry feel.

[0002]

2. Description of the Related Art Conventionally, polyester filament yarns have been used in all fields of clothing applications because of their excellent fiber characteristics. Especially, twist is added to the multifilament yarn,
Since the silhouette due to the good drapeability in clothes has elements completely different from other synthetic fibers and natural fibers because the drapeability is given by the alkali weight loss in the dyeing process of the fabric, it is particularly useful for women's outerwear applications. Widely used. In order to improve the hard touch with a waxy slimy feeling and paper-like feeling which are the drawbacks of synthetic fibers in the fabric, and to give the fabric a dry touch and softness with bulge, the cross-sectional shape of the monofilament is triangular or pentagonal Various attempts have been made, such as forming a cross-sectional shape and using a heterogeneous shrinkage mixed fiber in which the hot water shrinkage characteristics of some of these components are changed.

[0003] On the other hand, it is generally practiced by making the fineness of the monofilament extremely fine as an attempt to give the woven texture of the peach skin downy when touching soft and soft skin.

[0004] Usually, if the monofilament is made extremely fine, it gives a soft feeling to the skin, but the surface area is increased as compared with the thick monofilament, so that the slimy feeling is increased, and the discomfort is felt especially when it is wet with sweat or the like. Was causing the result.

Further, in order to eliminate the feeling of wetting, it has been attempted to make the cross section of the fiber atypical so as to give a water absorbing effect by the capillary phenomenon. However, when the monofilament is extra fine, in the current state of the art, the extra fine irregular cross section yarn is used. Therefore, it is currently difficult to improve water absorption.

[0006]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, provides a soft peach-like touch, has a dry touch different from the waxy slimy feel of ultrafine fibers, and further has a water-absorbing property. An effect is exhibited by a capillary phenomenon of fibers located in a relatively inner layer of a multifilament aggregate constituting a woven fabric, and it is possible to provide a mixed fiber composite yarn and a woven / knit fabric that can provide a dry and dry woven / knit fabric. To aim.

[0007]

The present invention has the following constitution in order to achieve the above object.

That is, in a multifilament yarn composed of two or more types of filament yarns having different cross-sectional shapes, at least one type of filament yarn (A) is a false twist winding made of polyester containing 1% by weight or more of inorganic particles. Constituting monofilament having a fineness of 1 denier or less, and at least one kind of filament yarn (B) having a cross-sectional shape having two or more convex portions
In addition, the composition ratio of the composition multi-filament group is
80 to 20% of filament yarn (A) side, filament
The mixed fiber composite yarn is characterized in that the yarn (B) side is 20 to 80% and the filament yarn (A) and the filament yarn (B) satisfy the following relationship.

A _d / B _d ≦ 0.34 B _sw −A _sw ≧ 3 where A _d is the single fiber fineness [denier] of the filament yarn (A), and B _d is the single fiber fineness of the filament yarn (B). [Denier], A _sw represents boiling water shrinkage [%] of the filament yarn (A), and B _sw represents boiling water shrinkage [%] of the filament yarn (B).

In a multifilament yarn composed of two or more kinds of filament yarns having different cross-sectional shapes, at least one kind of filament yarn (A) is 1% by weight.
A filament yarn (B) having a cross-sectional shape, which is composed of a monofilament having a false twist crimp of polyester containing the above inorganic particles and having a fineness of 1 denier or less, and the other filament yarn having two or more convex portions. It consists Rutotomoni, allocations configuration multifilament group
80% to 20% on the filament yarn (A) side,
20-80% on the side of the yarn (B) , and the filament yarn (A) and the filament yarn (B) satisfy the following relationship.

A _d / B _d ≦ 0.34 B _sw −A _sw ≧ 3 where A _d is the single fiber fineness [denier] of the filament yarn (A), and B _d is the single fiber fineness of the filament yarn (B). [Denier], A _sw represents boiling water shrinkage [%] of the filament yarn (A), and B _sw represents boiling water shrinkage [%] of the filament yarn (B).

The present invention will be described in detail below.

The mixed fiber composite yarn of the present invention is characterized in that the composition of the multifilament yarn is formed by mixing filament yarns having different monofilament fineness and cross-sectional shape and boiling water shrinkage. The fiber effect provides a dry peach touch and the water absorption effect provides a smooth feel.

The structure of the mixed fiber composite yarn of the present invention will be described in detail.

First, a filament yarn (A) made of polyester containing 1% by weight or more of inorganic particles and having a single fiber fineness of 1 denier or less is intended to give a soft dry feeling. From the viewpoint of imparting a dry feeling, the content of the inorganic particles is preferably 1.5% by weight or more, and more preferably 2% by weight or more. Further, from the viewpoint of obtaining a soft and dry feeling, it is preferable that the single fiber fineness is 0.7 denier or less, and the single fiber fineness is 0.
It is more preferably 5 denier or less.

In general, a method using an irregular cross section is used to obtain a dry touch, but if the monofilament is thinner than 1 denier, a sufficient degree of deformation cannot be obtained and a dry effect cannot be expected.

As the type of inorganic particles contained in the polyester, typical ones such as titanium oxide and calcium carbide which can be added at the time of polymerization of the polyester may be used. In addition, silicon oxide, zirconia oxide, kaolin, Calcium carbonate or the like can be used.

When the amount added to the polyester is 1% by weight or more, a dry soft touch can be obtained by roughening the fibers by elution of inorganic particles in the alkali weight reduction step of the woven fabric. The dry feeling increases as the amount of addition increases, but it has a negative effect on the spinnability and color development, and its limit is 6.5% by weight. The average particle size of the inorganic particles is preferably 1 μm or less from the viewpoint of dispersibility,
It is more preferably 0.7 μm or less. In addition, the maximum diameter of the inorganic particles is preferably 5 μm or less from the viewpoint of spinnability, and is 0.7 μm.
It is more preferably m or less.

The ultrafine yarn made of polyester with inorganic particles added can be either a normal direct spinning method or a splitting method such as a sea-island type or a laminating type conjugate spinning method. The gate splitting method is excellent.

The filament yarn (A) has a false twist crimp, and the single filament yarn of the ultrafine fiber when touching the mixed fiber composite yarn by this crimp causes contact with the skin. Is lessened, the slimy feeling of the ultrafine fibers is less likely to be felt, and a dry feeling can be imparted.

Next, as another component of the mixed fiber composite yarn, a modified cross-section yarn for imparting a bulge and a water absorbing effect by a capillary phenomenon to the yarn will be described.

The cross-sectional shape of the monofilament of the atypical cross-section yarn is a multi-filament having two or more convex portions, for example, a multi-section yarn having a triangular cross-section, a square cross-section, a hexagonal cross-section, three-lobed, four-lobed, , Multi-leaf cross-section yarns such as 6-leaf and 8-leaf. The number of protrusions in the modified cross-section yarn is preferably 2 to 20, more preferably 2 to 12, and most preferably 2 to 8 from the viewpoint of dry feeling, squeaking, peach touch, and water absorption. Is more preferable. As the cross-sectional shape, a cross-sectional shape having a concave portion between convex portions and a multi-leaf cross-sectional yarn having three lobes, four lobes, six lobes, eight lobes or the like is preferable from the viewpoint of imparting water absorption by a capillary phenomenon.

Further, it is preferable that tapered grooves are formed inward from the thread surface at a plurality of points.
The tapered groove formed on the yarn surface of the filament yarn cross section is preferably a slit having a width of 1 to 4 μm. More preferably, the cross-sectional shape is a multi-lobed cross-section yarn,
A taper-shaped groove is formed with a width of 1 to 4 μm from the tip of the convex portion of the cross section toward the inside of the yarn.

The cross-sectional shape having grooves tapering toward the inside of the yarn from a plurality of points on the yarn surface is, for example, obtained by complex spinning of a readily soluble polymer having an alkali weight loss rate four times or more than that of the base polymer forming the modified cross-section filament yarn. If the woven fabric is left with alkali, the tapered groove can be formed.

[0025] It is important that the relationship between the single fiber fineness and the boiling water shrinkage of the extra fine yarn constituting the mixed fiber composite yarn of the present invention and the modified cross-section yarn having a convex portion satisfies the following relations.

First, the single fiber fineness is A _d / B _d ≦ 0.34.
(A _d represents the single fiber fineness [denier] of the filament yarn (A), and B _d represents the single fiber fineness [denier] of the filament yarn (B)). When the monofilament fineness satisfies the above relationship, it is possible to impart both soft touch and firmness / stiffness in the woven fabric. From the viewpoint of a soft touch and a feeling of elasticity and waist in a fabric, preferably A _d / B _d ≦ 0.24, more preferably A _d / B _d ≦
It is 0.17.

The boiling water shrinkage is to satisfy the relation of B _sw -A _sw ≧ 3 (A _sw is the boiling water shrinkage [%] of the filament yarn (A), and B _sw is the filament yarn (B). Shows boiling water shrinkage [%]. When the boiling water shrinkage rate satisfies the above relationship, the modified cross-section yarn can be placed in the relatively inner layer part of the mixed fiber composite yarn, and the surface can obtain a very soft and soft feeling, and the structural difference due to the difference in yarn length can be obtained. It gives a feeling of swelling, contributes to the softness of touch, creates a void structure between fibers, and exerts the effect of exerting a water absorption effect by a capillary phenomenon in a relatively inner layer part of the mixed fiber composite yarn. From the viewpoint of feeling and water absorption, B _sw −A _sw ≧ 6 is preferable, and B _sw
-A _sw ≧ 10 is more preferable. The boiling water shrinkage ratio here is JIS L1 for raw silk (filament (B)).
013 (Chemical fiber filament yarn test method), and false twist crimped yarn (filament (A))
In the case of, it is measured according to JIS L1090 (Synthetic fiber filament yarn bulked yarn test method).

The single-filament fineness of the atypical cross-section multifilament yarn having two or more convex portions is preferably 3 to 10 denier. The boiling water shrinkage of the modified cross-section yarn is preferably 10% or more, and more preferably 10 to 30%.

When the monofilament fineness of the modified cross-section yarn is less than 3 denier, the extra fine yarn of the component composing the multifilament of the present invention is extra fine of 1 denier or less, so that the woven fabric of the mixed filament composite yarn This is because the firmness and waist cannot be obtained and tailoring as clothes is poor, and the water absorption effect due to the capillary phenomenon of the recess cannot be sufficiently obtained. On the other hand, if it exceeds 10 denier, the texture becomes hard, which is not preferable.

Further, it is preferable that the ratio of the number of filaments of the ultrafine filament yarn (A) to that of the modified cross-section filament yarn (B) is 20 times or more because the surface coverage of the ultrafine filament yarn is improved on the multifilament surface. As a result, when it is made into a woven or knitted product, the soft feeling is improved, and uneven dyeing and unevenness are extremely reduced. The mixed fiber state of the mixed fiber composite yarn of the present invention is obtained by spinning and drawing each filament yarn type by a conventional method, and a commonly used ply twisting machine, a double twister after an aligning pan winder are used. It may be in a mixed fiber state in which air is entangled by additional twisting or aligning. It is also possible to arrange a plurality of types of hole shapes on a spinneret attached to a spinning machine to obtain a one-shot spinning method. In addition, twisting at the time of alignment, entanglement such as interlacing with air, and mixed fibers with loops and talmis between single yarns such as taslan treatment are acceptable.

The modified cross-section yarn, which is a highly shrinkable component, is preferably obtained from polyester in which ethylene terephthalate is the main component and a third component is copolymerized. It is particularly useful in the above-mentioned one-shot spinning method. Examples of the third component include dicarboxylic acids such as oxalic acid, sebacic acid, phthalic acid and isophthalic acid, glycols such as diethylene glycol, polyethylene glycol and neopentyl glycol, and bisphenol A and bisphenol sulfone. Isophthalic acid and bisphenol A are particularly preferable from the viewpoints of spinnability and expression of high shrinkability. Further, the copolymerization amount of the third component is preferably 2 mol% or more in order to sufficiently impart high shrinkage characteristics,
On the other hand, if the copolymerization amount is too large, the shrinkage of the woven or knitted fabric will be excessive in the shrinkage difference imparting treatment, and the hardness of the woven or knitted fabric tends to become coarse. Therefore, it is preferable to limit the content to 20 mol% or less.

In the multifilament group constituting the mixed fiber composite yarn of the present invention, the polymer having inorganic particles added is an essential requirement for the ultrafine yarn side, but the modified cross-section yarn side may or may not have inorganic particles added. .

The composition ratio of the composition multifilament group is 80 to 20 on the ultrafine thread side (filament thread (A) side) .
%, Preferably 70 to 40%, and the modified cross-section yarn side ( fibre
Lament yarn (B) side) is 20 to 80%, preferably 30
-60% is suitable for obtaining a dry peach-like soft touch and a water absorption effect due to a capillary phenomenon.

The mixed fiber composite yarn of the present invention is obtained by subjecting an ultrafine fiber to false twisting, and then mixed or mixed or entangled with the filament yarn (B) having a convex shape which is another constituent filament yarn. You can get it. Further, the filament yarn (A) and the filament yarn (B) may be previously mixed or entangled and false twisted, but in this case, two or more convex portions are formed by false twisting. Since the ability of the modified cross-section yarn to be located in the inner layer of the ultrafine yarn in the woven fabric decreases due to the decrease in the boiling water shrinkage rate of the filament cross-section having the cross-section shape, the high-shrinkage side modified cross-section yarn has a third shape such as isophthalic acid. It is preferably made of a polyester obtained by copolymerizing the components.

Next, the woven fabric of the present invention will be described.

By using the mixed fiber composite yarn of the present invention for at least the warp and weaving the mixed fiber composite yarn of the present invention or any other type for the weft yarn, new texture and functionality are obtained. It can be a woven fabric having. When it is used as a weft, it is possible to use the mixed fiber composite yarn of the present invention as it is, but it is usually 1500 T / M although it depends on the sweet twist or fineness of 100 T / M in order to impart drape property and feeling of falling to the woven fabric. It is more preferable to carry out additional twisting. The weft yarn is not limited to the mixed fiber composite yarn of the present invention, and 500 T / M to 1500 T / M when other yarns are used.
It is preferable to carry out additional twisting of M.

Weaving is a normal water jet loom,
Regardless of model such as rapier, air jet loom,
In the case of additional twisting, it is preferable to carry out a twist prevention set in order to prevent deterioration of the weavability due to residual torque. This twisting set is preferably set at a low temperature as much as possible in order to impart a sufficient swelling feeling to the fabric in the dyeing process.

The obtained greige is put into a dyeing process, and finally finished into a woven fabric having excellent texture, surface feel and the like. As for the assembly and conditions of the processing step, it is desirable to adopt basically important low tension processing conditions for obtaining a fabric having a texture different from that of a conventional fabric which has been developed in recent years and is called a new synthetic fiber.

First, in the relaxing scouring, it is preferable to cause sufficient shrinkage with a low tension in order to exhibit a difference in boiling water shrinkage between the ultrafine multifilament yarn constituting the mixed fiber composite yarn and the highly shrinkable atypical cross-section multifilament yarn. In this step, the ultrafine fibers in the mixed fiber composite yarn constituting the woven fabric can be arranged relatively in the surface layer, and the high-shrinkage side modified cross-section fibers can be arranged in the relatively inner layer.

In the next step, the alkali weight reducing step, the surface of the inorganic particle-added multifilament yarn is roughened to make unevenness rough when the weight of the inorganic particles and the polyester polymer is reduced to give a dry feeling to the softness of the ultrafine fibers. In addition, by dividing the composite split fiber such as sea / island fiber into ultra-fine multifilament, soft and dry texture is realized.

Further, in order to develop a microslit of 1 to 4 μ at the tip of the convex portion of the atypical cross-section multifilament having a convex portion, the microslit is mixed in the multifilament composite of the multifilament spun with alkali-soluble polymer. Produces moderately and exerts water absorption effect by capillary phenomenon.

Generally, polyester multifilaments have no affinity for water and are inferior in hygroscopicity and water absorption, and the water absorbing effect is exhibited by forming a capillary structure. However, a multifilament aggregate constituting warps and wefts like the surface of a woven fabric is obtained. In order to improve the water absorption effect from the side of the body, it is necessary to add an auxiliary agent containing polyethylene glycol as a finishing agent in the dyeing and finishing process of the fabric to reduce the surface tension of the fiber and enhance the water absorption effect by the capillary phenomenon. Can be done. The effect of the polyethylene glycol-based finishing agent is greater in the woven fabric using the mixed fiber composite yarn in which the ultrafine multifilament yarns roughened by adding the inorganic particles are arranged in the outer layer portion.

[0043]

EXAMPLES The present invention will be described in more detail below with reference to examples.

[Example 1] Intrinsic viscosity [η] = 0.85 Polyethylene terephthalate added with 2% by weight of titanium oxide was used as an island component and copolymerized with sulfoisophthalic acid to obtain an intrinsic viscosity [η]. = 0.50 polyethylene terephthalate was used as a sea component at a composite ratio of 20%, and spinning was performed at a spinning speed of 1500 m / min using a spinneret capable of dividing the island component for sea-island structure composite spinning into 8 filaments having a round cross section. The undrawn yarn was drawn by a usual hot roller type drawing machine to obtain a multifilament yarn of 60 denier 36 filaments. The obtained multifilament yarn had the fineness of the monofilament of the island component of 0.16 denier and the boiling water shrinkage rate of 8.5%.

On the other hand, 1 isoftalic acid was used as the highly shrinkable yarn.
5 wt% copolymerized polyethylene terephthalate (containing 1.0 wt% of titanium oxide, intrinsic viscosity [η] = 0.6
8) and an alkali-soluble polyethylene terephthalate having an intrinsic viscosity [η] = 0.58 obtained by copolymerizing 3% by weight of sulfoisophthalic acid in a tapered shape (wedge shape) from the tip of each convex portion of the three-lobed cross section. At 80:20, the yarn was spun from a spinneret having a Y-hole cross section and further stretched by an ordinary hot roller stretching machine to obtain a 40 denier 6-filament multifilament yarn.
The single filament denier of this multifilament yarn had 6.6 denier, the boiling water shrinkage ratio was 20.2%, and the cross-sectional deformation degree was 2.2.

On the other hand, a sea-island structure 60 denier-36 filament was used with a normal pin false twisting machine (TFT-6M type manufactured by Toray Engineering Co., Ltd.) with a heater temperature of 21.
The false twisting process was carried out under the condition of 0 ° C., and crimping was performed, and at the same time, the boiling water shrinkage rate was lowered to 5.6%.

Next, the three-petal type cross-section yarn which has the above-mentioned three convex portions and has a tapered (wedge-shaped) groove at the tip of the convex due to alkali elution is used as the high shrinkage side and is commonly used. The compound interlace processing was carried out under the usual general conditions using a mixed fiber processing machine AT-501 manufactured by Wood Seisakusho. The single fiber fineness ratio of the filament yarns constituting this mixed fiber composite yarn was 0.16 / 6.6 = 0.024, and the boiling water shrinkage difference of the single filaments was 20.2-5.6 = 14.6. .

This mixed fiber composite yarn is divided as a warp with a Pan Winder, and then double twister # 3 manufactured by Murata Machinery Co., Ltd.
10 was used to apply sweetness (200 T / M), and after sizing with a Warper sizer under the conditions of a drying temperature of a cylinder of 100 ° C. and a chamber of 110 ° C., a water jet room LW-52 manufactured by Nissan Co., Ltd. was set. It was

The weft yarn has the same condition as the warp yarn (200T).
/ M) was used to weave a plain woven fabric. The green density was 172 / 2.54 cm × 65 / 2.54 cm. Subsequently, the greige was scoured and relaxed with hot water at 100 ° C. A softer type, which has low tension during processing in both the warp and weft directions, was used.

In the next step, dry heat at 190 ° C. gives a tentering ratio of 5
Preset with a pin tenter under the condition of 0%,
The sea-island splitting ultrafine yarn was divided by the liquid flow method and the alkali weight was reduced to give drape property. The actual weight loss rate was 29%. Subsequently, plain dyeing was performed with a jet dyeing machine at 130 ° C., a component having an electrostatic spinning agent as a main component was added as a finishing agent, and a finishing set was performed under a dry heat condition of 160 ° C. to obtain a product.

The density of the finished product is 186 pieces / 2.54 cm × 7
It had a sex of 7 / 2.54 cm.

The finished product was a wonderful product having a dry peach feeling, excellent elasticity and waist, and rich drapeability. When observed with a stereomicroscope, the ultrafine multifilament yarn containing titanium oxide has a monofilament yarn with fine irregularities generated by alkali reduction on the surface of the triangular cross-section, which is relatively wedge-shaped on the tip of the triangular cross section. It was located on the surface of a monofilament with a large fineness and had slits, and had a structure that was soft and bulged in appearance.

The woven fabric was evaluated for water absorption by the Bayrec method and the dropping method according to JIS L1096. As a result, the water absorption height by the Bayrec method was 90 mm in the warp direction, 71 mm in the weft direction, and the water absorption rate by the dropping method was 34 seconds.

As a result of observing the water absorption, it was found that the water absorption by the dropping method was a phenomenon in which the water was absorbed from the surface and the wet state of the surface was thin like the capillary phenomenon of the inner layer portion.

[Comparative Example 1] A semi-dal type 60 having a round cross-sectional shape obtained by spinning and drawing ordinary polyethylene terephthalate by a conventional method and containing 0.3% by weight of titanium oxide.
Denier-144 filament polyester multifilament yarn (boiling water shrinkage 7.8%) was pre-twisted at a heater temperature of 210 ° C. using a TFT-6 type false twisting machine manufactured by Toray Engineering Co., Ltd. Simultaneously with applying crimp, the shrinkage rate of boiling water was reduced to 5.2%.

This polyester multifilament yarn and a super-bright type 3 having a circular cross-section obtained by spinning and drawing a copolymerized polyethylene terephthalate obtained by copolymerizing isophthalic acid by a conventional method and containing no titanium oxide.
Aligned with 0 denier-12 filament high shrink polyester multifilament yarn (boiling water shrinkage 20%),
Interlace treatment was performed at a compressed air flow rate of 45 Nl / min to obtain a mixed fiber entangled yarn.

This mixed fiber composite yarn was subjected to 200 T / M sweet twist post-twisting by a conventional method, passed through a warping step, a sizing beam, etc., and set on a Nissan Water Jet Room LW-52 type. As the weft yarn, a mixed fiber composite yarn used for the above warp yarn was subjected to additional twisting of 500 T / M by a conventional method, and a plain weave fabric having a greige density of 99 yarns / 2.54 cm × 79 yarns / 2.54 cm was woven.

Next, the greige was dyed and finished under the same processing conditions as in Example 1, and the finish density was 130 pieces / 2.54 cm × 1.
A finished product of 02 pieces / 2.54 cm was obtained.

When the obtained woven fabric was evaluated, 0.4 denier ultrafine yarn floated on the surface and had a soft peach tone, but it had a slimy touch and lacked a dry feel. The water absorption was evaluated by the Bayrec method and the dropping method according to JIS L1096. As a result, the water absorption height by the Bayrec method was 56 mm in the longitudinal direction, 45 mm in the weft direction, and the diffusion rate by the dropping method was 65 seconds.

The water absorption effect by the capillary phenomenon on the surface of the fabric was visually inferior to that of Example 1.

─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-5-98529 (JP, A) JP-A-55-107512 (JP, A) JP-A-56-148931 (JP, A) JP-A-2- 145825 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) D02G 1/00-3/48 D01F 6/92 D03D 15/04

Claims (6)

(57) [Claims] 1. A multifilament yarn composed of two or more types of filament yarns having different cross-sectional shapes, wherein at least one type of filament yarn (A) is a false twist winding made of polyester containing 1% by weight or more of inorganic particles. It is composed of a single fiber fineness of 1 denier or less single filament having a reduced and consists filament yarn cross-sectional shape having at least one two or more posts (B) Rutotomo
The composition ratio of the composition multifilament group is
80% to 20% on the filament yarn (A) side, filament yarn (B)
20-80% on the side, and further, the filament yarn (A)
And the filament yarn (B) satisfy the following relationship. Ad / Bd ≦ 0.34 Bsw−Asw ≧ 3 Here, Ad is the single fiber fineness [denier] of the filament yarn (A), Bd is the single fiber fineness [denier] of the filament yarn (B), and Asw is the filament yarn ( A) indicates boiling water shrinkage [%], and Bsw indicates the boiling water shrinkage [%] of the filament yarn (B). 2. The mixed fiber composite yarn according to claim 1, wherein the filament yarn (B) has a shape in which tapered grooves are formed inward from the yarn surface at a plurality of positions. 3. The mixed fiber composite yarn according to claim 1, wherein the ratio of the number of filaments of the filament yarn (A) to the filament yarn (B) is 20 times or more. 4. A multifilament yarn composed of two or more kinds of filament yarns having different cross-sectional shapes, and at least one kind of filament yarn (A) is a false twist winding made of polyester containing 1% by weight or more of inorganic particles. is composed of a single fiber fineness of 1 denier or less single filament having a reduced, when the filament yarn except it Ru consists filament yarn cross-sectional shape having two or more protrusions (B)
In both cases, the composition ratio of the composition multifilament group is
Lament yarn (A) side is 80-20%, filament yarn
A woven or knitted fabric comprising a mixed fiber composite yarn, wherein the (B) side is 20 to 80% and the filament yarn (A) and the filament yarn (B) satisfy the following relationship. Ad / Bd ≦ 0.34 Bsw−Asw ≧ 3 Here, Ad is the single fiber fineness [denier] of the filament yarn (A), Bd is the single fiber fineness [denier] of the filament yarn (B), and Asw is the filament yarn ( A) indicates boiling water shrinkage [%], and Bsw indicates the boiling water shrinkage [%] of the filament yarn (B). 5. The woven or knitted fabric according to claim 4, wherein the filament yarn (B) has a shape in which tapered grooves are formed from a plurality of positions on the yarn surface toward the inside of the yarn. 6. The woven or knitted fabric according to claim 4, wherein the ratio of the number of filaments of the filament yarn (A) to that of the filament yarn (B) is 20 times or more.