JPH10280239A - Conjugated spun yarn, its production and fabric therefrom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cold hand and indelicate gloss, give woven or knitted fabrics of high opacity, as it keeps dry and warm fabric hand, further enable sufficient fluff binding of the core stable fiber and develop much improved process-passing properties compared with the conventional spun yarns by this fluff binding and high filament fiber uniformity, when fabrics are formed therefrom. SOLUTION: This conjugates spun yarn is produced by actually twisting a filament yarn and staple fibers and the inner layer is constituted with dispersed filament yarn and stable fiber in the cross section of the spun yarn, while the outer layer has at least a part in which the filament yarn distributes, too.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a composite spun yarn comprising a filament fiber and a staple fiber. More specifically, the present invention relates to a composite spun yarn having a composite form in which part of a filament fiber is mainly disposed in an outer layer portion of a yarn bundle, and part of the filament fiber is disposed in an inner layer portion in a state of being mixed with staple fibers.

[0002]

2. Description of the Related Art Conventionally, spun yarns made of staple fibers or continuous yarns made of filament fibers have been used as yarns used for clothing fabrics.

[0003] A spun yarn made of staple fibers is a yarn having a bulky and soft feel, but has a drawback that the tensile strength is relatively small, or the uniformity is inferior such as unevenness in the thickness and unevenness of the yarn and fuzz. When many fabrics are used, there is a disadvantage that pilling easily occurs.

[0004] In addition, continuous yarns made of filament fibers are excellent in strength and uniformity, but are insufficient in bulkiness in straight filament fibers that have not been subjected to yarn processing. Also,
It has drawbacks in texture and appearance, such as paper-like, cold feel, and lack of luster.

[0005] A spun yarn comprising these staple fibers,
As a yarn forming method for compensating for the drawbacks of continuous yarns composed of filament fibers, there is a composite spun yarn in which a filament fiber and a staple fiber are combined to form a yarn.
7-11248, JP-B-62-20292, JP-A-1-246435, JP-A-7-907
Many proposals have been made in the past, including Japanese Patent Publication No. 40 and the like.

[0006] A typical yarn of a composite spun yarn in which a filament fiber and a staple fiber are combined to form a thread is a so-called filament fiber core yarn in which a filament fiber is used as a core and a staple fiber is used as a sheath. Although the uniformity of yarn, such as unevenness in thickness and strength unevenness, is improved, there is a defect that the filament fiber and the staple fiber are separated in the stiffness resistance, and the appearance is a spun yarn made of staple fibers, and is a core yarn. For this reason, there is also a problem in that the disadvantage that pilling is easily generated tends to increase.

Contrary to the above, in a composite spun yarn having a so-called filament fiber cover yarn in which a filament fiber is formed in a sheath portion and a staple fiber is formed in a core portion, similarly to the core yarn of the filament fiber, Evenness such as uneven thickness and strong unevenness of yarn is improved, but light is regularly reflected and gloss is too strong because filament fibers are twisted in one direction and arranged in a tape or ribbon shape. There was a problem that the product had no luster, and there was a problem that it was transparent when it was made into a knitted fabric.
In addition, a composite spun yarn having a high filament covering ratio has a mirror-like surface and therefore has a slimy feeling and a cool feeling, and cannot be used in a field where a dry feeling and a warm feeling are required.

[0008] Further, both technologies have insufficient fuzzing effect of staple fibers, and have problems in terms of processability and product quality.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to improve the cold feel of the filament fiber and the luster of the composite spun yarn composed of the filament fiber and the staple fiber. To provide a composite spun yarn having excellent sheer-preventing properties when formed into a knitted fabric, having a dry feeling and a warm feeling, and capable of sufficiently performing fluffing of staple fibers as a core, and a method for producing the same. It is intended for.

[0010]

Means for Solving the Problems The composite spun yarn of the present invention has the following constitution in order to solve the above-mentioned problems.

That is, a composite spun yarn in which a filament fiber and a staple fiber are twisted in real twist, and in a cross-sectional form of the composite spun yarn, an inner layer portion is formed by dispersing and mixing the filament fiber and the staple fiber; A composite spun yarn characterized by having at least a composite form portion in which the filament fibers are present also in an outer layer portion.

The fabric of the present invention has the following constitution.

That is, a composite spun yarn in which a filament fiber and a staple fiber are twisted by real twist, and in a cross-sectional form of the composite spun yarn, an inner layer portion is formed by dispersing and mixing the filament fiber and the staple fiber; A fabric using a composite spun yarn, wherein the outer layer portion also has at least a composite form portion in which the filament fiber is present.

Further, the method for producing a composite spun yarn of the present invention has the following configuration.

That is, a method for producing a composite spun yarn in which a filament yarn and a staple yarn are overlapped and twisted,
A method for producing a composite spun yarn, characterized in that when a staple yarn is drafted and spun, a filament yarn is spun at the same time as the staple yarn with a width larger than the staple yarn width and twisted.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

The present invention relates to a composite spun yarn in which a filament fiber and a staple fiber are twisted in a real twist. In the cross-section of the composite spun yarn in the yarn axis direction, the inner layer has the filament fiber and the staple fiber dispersed therein. And mixed and formed
The outer layer also has at least a composite form portion in which the filament fibers are present (FIGS. 2 and 3). To explain this in more detail, in the present invention, the state in which filament fibers and staple fibers are dispersed and mixed is formed by interlocking short fibers as seen in the cross-sectional shape of a mixed yarn of different materials. It means the state that it was.

Further, the phrase "having at least the composite form portion in which the filament fibers are present also in the outer layer portion" means that the filament fibers cover the inner layer short fiber bundle as seen in the yarn cross section of the covering spun yarn. It means a state in which it is stuck to a part of the outer periphery in a thin skin shape.

In the description of the figures, the form shown in FIGS.

Regarding the fibers constituting the filament fibers used in the present invention, the properties of the fibers, that is, the single yarn fineness,
There are no restrictions on the cross-sectional shape, the presence or absence of crimps (physically or structurally).
In other words, a plurality of filament fibers, or synthetic fibers such as polyester and polyamide or cellulosic semi-synthetic fibers that can be opened by applying a physical action can be used.

The physical properties of the filament fibers, such as the strength and elongation and the shrinkage, and the dyeability are not subject to any restrictions.

On the other hand, the staple fiber used in the present invention is not particularly limited as long as it is subjected to a usual spinning process. Any of 100% natural fiber, 100% synthetic fiber, and a blend of natural fiber and synthetic fiber or semi-synthetic fiber may be used. Of course, those using functional fibers or the like can also be used.

Furthermore, in the combination of the filament fiber and the staple fiber, the fact that the single fiber of the filament fiber is thinner than the single fiber of the staple fiber is to cover the fluff of the staple fiber which is more rigid than the inner layer filament. It is preferable from the viewpoint of obtaining a smooth yarn with a soft touch. Further, it is preferable that the filament single fiber is 1.0 denier or less from the viewpoint of covering a short fiber having a large rigidity in the inner layer portion with a large number of filament single fibers. As the filament fiber, a fiber having a denier of 0.1 denier or more can be generally used. In such a fabric using the composite spun yarn of the present invention, staple fibers express the firmness, waist, and resilience of the fabric, and filament fibers express softness and smoothness, respectively. It is considered to be.

Next, a method for producing a composite spun yarn of the present invention will be described.

In order to obtain the composite spun yarn of the present invention, in a general ring spinning method, a staple fiber bundle is drafted by a draft roller, sent out from a front roller, twisted at the same time, further wound around a bobbin and spun with a spun yarn. In this method, a plurality of filament fibers are arranged in a width wider than the supply width of the staple fiber bundle before the front roller, and the staple fibers and the filament fibers can be sent out from the front roller together.

Further, the composite spun yarn of the present invention comprises a filament yarn comprising a plurality of monofilaments in front of a front roller.
Spread to a width wider than the supply width of the staple fiber bundle, a part of the opened filament fiber is nipped by the front roller and sent out together with the staple fiber, and the other unopened filament fiber is It can be obtained by feeding the yarn being twisted without being nipped.

The operating conditions such as the number of revolutions of the ring spinning machine, the draft ratio, the number of twists and the like during the production may be the same as those of ordinary spun yarn, but may be set appropriately according to the application.

Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is a schematic process diagram showing an example of the method for producing a composite spun yarn of the present invention.

In FIG. 1, a roving yarn 6 composed of staple fibers b passes through a back roller 1, a second roller 2 of the Casablanca type, and front rollers 3, 4 to form a staple fiber bundle having a desired thickness. On the other hand, filament fiber a
Is pulled out of the package 5 under a constant tension by a tension compensator by a pair of feed rollers 9,
After passing through the humidifying device 10 and the spreading electrode 7, the fiber is supplied to the front rollers 3 and 4 in a state where the fiber is spread into single fiber components. Next, both fibers are simultaneously wound, and the bobbin 8 is used as a composite spun yarn c.
Take up at

FIGS. 2, 3, 4, and 5 are schematic views schematically showing cross sections of four typical composite forms that can be taken by the composite spun yarn of the present invention, wherein a is a filament fiber, and b is a filament fiber. Fig. 4 shows staple fibers.

In the present invention, FIG. 2 or FIG.
As shown in the above, the inner layer portion has at least a composite form portion in which filament fibers and staple fibers are dispersed and mixed and the inner layer portion is substantially covered with filament fibers.

In the present invention, typical composite forms are shown in FIGS. 4 and 5 as parts other than the composite form shown in FIG. 2 or FIG. FIG. 4 shows a so-called filament yarn core yarn where the filament fibers are concentrated in the inner layer and the staple fibers are concentrated in the outer layer. FIG. 5 shows a composite form in which filament fibers and staple fibers are almost separated.

FIG. 6 is a front roller side sectional view showing an example of a case where a plurality of filament fibers and a drafted staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn of the present invention. FIG. 7 shows FIG.
3 is a model diagram viewed from the direction of the arrow of FIG. In the figure, a is a filament fiber, b is a staple fiber, c is a composite spun yarn, 3 is a front top roller, and 4 is a front bottom roller. In this case, the filament fiber and the staple fiber are sent out from the front roller and twisted at the same time as in a general ring spinning method, and are further wound around a bobbin to form a spun yarn.
By setting the supply width f of the plurality of filament yarns shown in FIG. 7 to be wider than the width d for supplying the staple fiber bundle and setting d to be within the range of f in the positional relationship, the center part of the front roller of the filament fibers is formed. The component gripped within the nearby width d overlaps and twists with the staple fiber, and is mixed in the outer layer portion of the staple fiber bundle or the staple fiber bundle in the composite spun yarn. The component located outside the width d within the width f of the filament fiber and gripped exists as if wrapping around the staple fiber bundle in the composite spun yarn. The cross-sectional shape of the spun yarn formed as a composite in this manner has the shape shown in FIGS. 2 and 3, and the filament fiber of the present invention substantially covers the inner layer portion, and the inner layer portion is composed of the filament fiber and the staple fiber. Are dispersed to form a mixed form part formed by mixing.

In the present invention, the situation of forming the composite form part will be described in more detail. 8, 9, 10, and 1
FIG. 1 is a schematic view schematically showing an example in which a filament fiber opened to a single fiber and a drafted staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn according to the present invention. The top roller is provided with tapered portions at both ends of a rubber cot portion. 9 and 11 are model diagrams viewed in the direction of arrows in FIGS. 8 and 10. FIGS. 12, 14, and 16 show filament yarns that have been opened to single fibers, according to the method for producing a composite spun yarn according to the present invention in which tapered portions are provided at both ends of the rubber cot portion of the front top roller shown in FIGS. FIG. 13 is a model diagram showing an embodiment when a drafted staple fiber bundle is spun from a front roller, and FIGS. 13, 15, and 17 show the yarns spun in the examples of FIGS. 12, 14, and 16, respectively. FIG. 4 is a model diagram showing features.

The filament fiber and the staple fiber are sent out from a front roller and twisted at the same time as in a general ring spinning method, and are further wound around a bobbin to be spun.

The width d for supplying the staple fiber bundle, the width e of the flat portion which comes into contact with the front bottom roller of the front top roller and nips and sends out the fiber bundle, and the width of the filament fiber corresponding to the opening width of the single fiber. The relative relationship of the supply width f is set so that the width f of the positional relationship shown in the figure is the widest, the width e is the next largest within the range, and the width d exists within the range of the width e. preferable.

When the widths d, e, and f have the above-mentioned relationship and the feeding speed of the filament fiber is higher than the feeding speed of the staple fiber, the staple fiber is sent out from the front roller in the same manner as a general ring spinning method. At the same time, it is twisted and wound on a bobbin to form a spun yarn.

At this time, the state shown in FIG. 9 is constantly taken. That is, the filament fibers which are opened to the single fiber with the supply width f and sent to the front roller are composed of a single fiber component held by the front roller and a single fiber component which is not held because it is located outside the front roller nip width. The monofilament component that is present and is held by the front roller of the filament fiber overlaps with the staple fiber and is twisted, so that it is mixed in the outer layer portion of the staple fiber or in the staple fiber bundle.

On the other hand, the single fiber component of the filament fiber which is not gripped by the front roller exists as if it wraps around the staple fiber bundle. The shape of the spun yarn formed as a composite in this manner has the shape shown in FIG. 13, in which the filament fiber of the present invention substantially covers the inner layer portion, and the inner layer portion is formed by dispersing the filament fiber and the staple fiber. It becomes a composite form part formed by mixing.

The average twist angle α of the filament fibers in the outer layer is preferably larger than the average twist angle β of the staple fibers from the viewpoint of absorbing the overfeed amount of the filament fibers.

Α is 10 ° to 20 ° from the viewpoint of forming a composite form portion in which filament fibers are attached in a thin skin shape to a part of the outer peripheral portion so as to cover the short fiber bundle of the inner layer portion.
° is preferred. A particularly preferred range is from 11 ° to 16 °.
°.

Further, as the spinning proceeds, the components of the filament fibers which are not nipped by the front roller are located around the staple fiber bundle, so that the yarn length for twisting and forming the composite spun yarn is increased. It is required that the length of the filament is longer than the length of the fiber that is fed by being nipped by the roller, and the required overfeed amount of the filament fiber is less than the required length. The staple fibers are sent out and overlapped and twisted. Also,
The component of the filament fiber that had been gripped by the front roller slackened due to the extra overfeed amount,
In order to take a longer advancing position, it is located at the end of the width H and releases the grip of the front roller.

While repeating this, the single fiber component of the filament fiber is sent out from the front roller at the same time as the staple fiber, and is twisted into the composite form shown in FIG. 2, and is gripped by the filament roller front roller on both sides of the staple fiber bundle. When the single fiber components that have not been placed are arranged at the same position in the yarn cross section, the composite form shown in FIG. 3 is obtained. In some cases, the monofilament component of the filament fiber is hardly opened due to, for example, an excessive tension applied to the filament fiber. In this case, when most of the filament fiber is arranged outside the staple fiber bundle, FIG. In the case where most of the single fiber components of the filament fibers are arranged in the staple fiber bundle, the spun state shown in FIG. 16 is obtained. The thread shape shown in FIG.

Hereinafter, the present invention will be described in more detail with reference to examples.

[0046]

【Example】

Example 1 1. Made of polyethylene terephthalate
5 denier, 38mm length staple 1
A draft of 60 gren / 30 yds is drafted, and a staple fiber bundle is sent out from a front roller. On the other hand, a 50-denier 72-filament filament fiber made of polyethylene terephthalate is supplied with a yarn feeding tension of 0.1 g / d and an overfeed rate of 6.0%. After the mist is supplied, the yarn is guided to an opening electrode (-5.0 Kv), and the fiber is spread into single fiber units. From the front roller at the same time as the staple fiber bundle between the front roller and the second roller. Sending out, twisting at 712 T / m in the Z direction, cotton count 32
A composite spun yarn of S was obtained. The width of the supply width of the spread filament is 18 mm, the width of the supply width of the staple fiber bundle is 5,
The width of the nip portion of the front roller was set to 8 mm.

The yarn form of the obtained composite spun yarn is such that the filament fibers are mixed in the outer layer portion of the staple fibers or in the staple fiber bundle and exist as if wrapping around the staple fiber bundle. there were. Also,
The number of small fluffs of 1 to 3 mm or more was as extremely small as 46 pieces / m.

The composite spun yarn was used for a warp of 88 yarns / inch.
When weaving a plain weave of 72 wefts, the resulting woven fabric has a sheer-proofing effect, and the cold feel of the filament fibers and the lustrous luster are improved,
The fabric had a warm feeling, soft touch of fine filament fibers, and mild, deep gloss. Furthermore, the anti-pill property was also good.

Comparative Example 1 The same material as in Example 1 was set on an ordinary ring twisting machine and sent out from a front roller simultaneously with the staple fiber bundle without overfeeding the filament fibers, and the number of twists in the Z direction was 712 T / m and twisted to produce a core yarn of cotton count 32S. The obtained yarn had an extremely large number of fluffs, with small fluffs of 1 to 3 mm being 412 / m. When this yarn was made into a fabric using the same woven fabric design as in Example 1, many pillings occurred due to a rough surface touch.

[Comparative Example 2] Using the same material as in Example 1 and setting the overfeed ratio to 6.0% according to the production method described in Japanese Patent Publication No. 62-20292, the cotton count 32S was compounded. A spun yarn was obtained. Example 1
A trial production of a woven fabric with the same specifications as described above showed that some of the sensory evaluations showed that the product had metallic luster and had a slimy feeling and had difficulties. Also, the fabric was transparent.

Example 2 A rotatable yarn of 120 denier / 30 yds made from staples of 1.0 denier and 38 mm length made of polyethylene terephthalate was drafted, and a staple fiber bundle was sent out from a front roller.
On the other hand, a filament fiber of 30 denier and 72 filaments made of polyethylene terephthalate was supplied with a yarn feed tension of 0.1
g / d, the overfeed rate is set to 6.0%, the water is supplied to the mist, and then the yarn is guided to an opening electrode (-4.8 Kv) to be opened in a unit of single fiber. The staple fiber bundle was sent out from between the rollers at the same time as the staple fiber bundle, and twisted at a twist number of 750 T / m in the Z direction to obtain a 32C cotton spun composite yarn. The width of the supply width of the spread filament is 16 mm, the width of the supply width of the staple fiber bundle is 4 mm, and the width of the nip portion of the front roller is 8 mm.
mm. The yarn form of the obtained composite spun yarn was such that the filament fibers were mixed in the outer layer portion of the staple fibers or in the staple fiber bundle, and existed as if wrapping around the staple fiber bundle. In addition, the number of small fluffs of 1 to 3 mm was as small as 37 pieces / m. When a broad of 120 / inch and 85 / inch weft was made from the obtained composite spun yarn, it had a soft touch with fine filament fibers, a silky astringent luster and an anti-sheer effect, and also a very good drape. Had the nature. Moreover, a high-quality fabric was obtained in which the softness of the staple fibers inside the fabric was taken into account.

The processability was also very good.

Example 3 A roving yarn of Egyptian cotton (combed cotton for 80S) 80 gelen / 30 yds was drafted, a staple fiber bundle was sent out from a front roller, and a 30 denier 72 filament filament made of polyethylene terephthalate was used. Yarn feed tension 0.1 g /
d, supply with the overfeed rate set to 6.0%,
After water supply with mist, the yarn is guided to an opening electrode (-4.8 Kv), opened to a single fiber unit, sent out from the front roller at the same time as a staple fiber bundle from between the front roller and the second roller, and the number of twists in the Z direction. Twisting was performed at 980 T / m to obtain a composite spun yarn having a cotton count of 60S. The width of the supply width of the spread filament was set to 16 mm, the width of the supply width of the staple fiber bundle was set to 4 mm, and the width of the nip portion of the front roller was set to 6 mm. The yarn form of the obtained composite spun yarn was such that the filament fibers were mixed in the outer layer portion of the staple fibers or in the staple fiber bundle, and existed as if wrapping around the staple fiber bundle. Also, 1
The small fluff of ~ 3 mm was as little as 51 flies / m. 160 yarns / inch, 120 wefts /
When woven in an inch inch plain weave structure and dyed, it had a soft touch with a fine filament fiber, mild luster and anti-sheer effect, and furthermore had excellent surface quality and drapeability. In addition, the process passability was also very good.

Example 4 A 1.5 denier, 38 mm long staple made of polyethylene terephthalate was used as a raw material, and a roving of 80 glen / 30 yds was drafted, and a staple fiber bundle was sent out from a front roller.
On the other hand, a filament fiber of 30 denier and 72 filaments made of polyethylene terephthalate was supplied with a yarn feeding tension of 0.1%.
2 g / d, overfeed rate set to 2.0%, water is supplied to the mist, and then guided to a spread electrode (-4.5 Kv), spread to a single fiber unit, and a front roller and second The staple fiber bundle was sent out from the front roller at the same time between the rollers, and twisted at 980 T / m in the Z direction to obtain a composite spun yarn of cotton count 60S. The width of the supply width of the spread filament is 16 mm, the width of the supply width of the staple fiber bundle is 5, and the width of the nip portion of the front roller is 6 mm.
Set to.

The yarn form of the obtained composite spun yarn is such that the filament fibers are present in the outer layer portion of the staple fibers or in the staple fiber bundle and as if they are wrapped around the staple fiber bundle. there were. Also,
The small fluff of 1 to 3 mm had a very small fluff of 31 pieces / m.

The obtained composite spun yarn was set on a 28 gauge / inch tricot knitting machine to knit a 100 g / m ² knitted fabric. It has improved dryness, warmth, soft touch of fine filament fibers, and mild and deep luster, and has good fabric quality as a cloth for shirts and blouses. Was.

The number of fluffs of the present invention was measured using "Fly Counter" DT-104 manufactured by Toray Engineering Co., Ltd.
The yarn sample was measured under the conditions of a tension of 4 g / line and 20 m / min.

[0058]

According to the present invention, the cold feel of the filament fiber and the glossiness of the product are improved, and the knitted fabric has excellent sheer-preventing properties and a dry feeling.
It has a warm feeling. Furthermore, the staple fibers of the core can be sufficiently fluffed down, and by having the uniformity of the filament fibers, significantly improved process passability can be exhibited when fabrics are formed, as compared with conventional spun yarns.

Also, since the staple fiber exhibits excellent spotting, warming and soft feeling inside the yarn, high sensitivity,
It is a material suitable for fabric design requiring high quality and high performance.

Further, by making the single fiber fineness of the filament fiber smaller than the single fiber fineness of the staple fiber bundle, the tension and waist can be expressed by staple fibers, and the soft feeling can be expressed by filament fibers. In particular, it is also possible to produce a soft fine hair feeling such as feathers.

[Brief description of the drawings]

FIG. 1 is a schematic view schematically showing an example of a method for producing a composite spun yarn of the present invention.

FIG. 2 is a schematic cross-sectional view schematically showing an example of the composite spun yarn of the present invention.

FIG. 3 is a schematic cross-sectional view schematically showing another example of the composite spun yarn of the present invention.

FIG. 4 is a schematic cross-sectional view schematically showing still another example of the composite spun yarn of the present invention.

FIG. 5 is a schematic cross-sectional view schematically showing still another example of the composite spun yarn of the present invention.

FIG. 6 is a schematic view schematically showing an example of a case where a filament fiber and a staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 7 is a schematic diagram schematically showing an example of a case where a filament fiber and a staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 8 is a schematic diagram schematically showing an example of a case where a filament fiber and a staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 9 is a schematic view schematically showing another example of spinning a filament fiber and a staple fiber bundle from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 10 is a schematic diagram schematically showing another example of spinning a filament fiber and a staple fiber bundle from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 11 is a schematic diagram schematically illustrating another example of spinning a filament fiber and a staple fiber bundle from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 12 is a schematic view schematically showing an example in which a filament fiber and a staple fiber bundle are spun from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 13 is a schematic vertical sectional view schematically showing an example of the composite spun yarn of the present invention.

FIG. 14 is a schematic view schematically showing another example of spinning a filament fiber and a staple fiber bundle from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 15 is a schematic vertical sectional view schematically showing another example of the composite spun yarn of the present invention.

FIG. 16 is a schematic view schematically showing still another example of spinning a filament fiber and a staple fiber bundle from a front roller in the method for producing a composite spun yarn of the present invention.

FIG. 17 is a schematic longitudinal sectional view schematically showing still another example of the composite spun yarn of the present invention.

[Explanation of symbols]

1: a pair of back rollers 2: a pair of second rollers 3: a front top roller 4: a front bottom roller 5: a filament fiber bobbin 6: a staple fiber bundle bobbin 7: a spreading electrode 8: a composite spun yarn bobbin 9 of the present invention 9: a pair 10: humidifier 11: yarn guide a: filament fiber b: staple fiber bundle c: composite spun yarn d: staple fiber bundle supply width e: staple fiber bundle nip width of front top roller f: filament fiber Supply width α: twist angle of filament fiber β: twist angle of staple fiber

Claims (7)

[Claims] 1. A composite spun yarn in which a filament fiber and a staple fiber are twisted by real twist, wherein the composite spun yarn has a cross-sectional shape, in which an inner layer portion is formed by dispersing and mixing a filament fiber and a staple fiber; A composite spun yarn characterized by having at least a composite form portion in which the filament fibers are present also in an outer layer portion. 2. The composite spun yarn according to claim 1, wherein the same filament fibers are present in the outer layer portion and the inner layer portion in a direction extending along the yarn axis direction. 3. The filament according to claim 1, wherein the filament fibers are thinner than the staple fibers.
2. The composite spun yarn according to item 1. 4. The composite spun yarn according to claim 1, wherein the single fiber of the filament fiber is 1 denier or less. 5. A fabric comprising the composite spun yarn according to any one of claims 1 to 4. 6. A method for producing a composite spun yarn in which a filament yarn and a staple yarn are overlapped and twisted, and when the staple yarn is drafted and spun, the filament yarn is formed with a width wider than the staple yarn width. A method for producing a composite spun yarn, comprising spinning and twisting simultaneously with a staple yarn. 7. The staple yarn supply speed according to claim 6, wherein the filament yarn supply speed is higher than the staple yarn supply speed.
2. The method for producing a composite spun yarn according to item 1.