JP2002105785A - Special false-twisted slab composite yarn, and woven and knitted fabric by using the same yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a special false-twisted slab composite yarn exhibiting a new appearance and touch feeling, capable of imparting an unprecedented flexibility and also being obtained as a linearly extendable yarn (a non-torque yarn), and woven and knitted fabrics by using the same yarn. SOLUTION: This special false-twisted slab composite yarn is constituted by a slab part 14 formed by a triplicate part obtained by winding a floating yarn 12 which is a highly shrunk yarn of a filament yarn, toward a core yarn 11 which is a heater-processed yarn of the filament yarn in triplicate, and a non-slab part 13 formed by a single part consisting of a reversed part in which the core yarn 11 winds around the floating yarn 12 singly by contracting the floating yarn 12 on heat treatment to reverse the state of winding of the core yarn 11 and the floating yarn 12 completely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel woven or knitted fabric having a slab portion consisting of a triple portion and a non-slab portion consisting of a single portion, and having a reverse portion in the single portion. The present invention relates to a special false twist slab composite yarn capable of producing an appearance and a feeling, and a woven fabric and a knitted fabric using the same.

[0002]

2. Description of the Related Art Conventionally, false-twisted slab composite yarn is formed by false-twisting a core yarn composed of a filament yarn and a floating yarn, and a slab portion composed of a triple portion in which the floating yarn is wound around the core yarn three times. And a non-slab portion composed of a single portion in which the floating yarn is wound around the core yarn. As the core yarn, a high shrinkage yarn is used, and as the floating yarn, a yarn having a lower shrinkage than the core yarn or a normal yarn is used. By passing these core yarns and floating yarns through at least one heater during false twisting, the core yarns are greatly shrunk, so that a reversing portion is formed in which the core yarns are wrapped around the floating yarns. ing. At this time, the single part and the triple part have substantially the same thickness. The false twist slab composite yarn having a single part and a triple part having a reversal part is excellent in bulkiness, has good appearance and texture, and has elasticity.

[0003]

However, according to the false-twisted slab composite yarn, when the core yarn shrinks, the filaments constituting the core yarn become thick and densely packed, so that the yarn is There is a problem that it is hard to say that the whole is good in flexibility, and it is unsuitable for use as a material for woven or knitted fabric which has a good touch and is rich in soft feeling and supple feeling. Furthermore, the false twisted slab composite yarn is a greatly shrunk yarn (torque yarn) over the entire yarn,
Due to the twist, loop, and the like, there is a problem in that when used, it must be stretched by adding tension.

[0004] The present invention has been made by paying attention to such problems existing in the prior art. The goal is to create a new look and feel while giving unprecedented flexibility,
An object of the present invention is to provide a special false twisted slab composite yarn that can be obtained as a linearly extending yarn (non-torque yarn), and a woven or knitted fabric using the same.

[0005]

In order to achieve the above object, the invention of a special false twist slab composite yarn according to the first aspect of the present invention relates to a floating yarn made of a high shrinkage yarn with respect to a core yarn made of a processed yarn. A slab portion and a non-slab portion are provided by feeding and false twisting, and the slab portion is constituted by a triple portion in which a floating yarn is wound around a core yarn three times, and the non-slab portion is formed into a floating yarn. On the other hand, the core yarn has a reversing portion wound around a single layer, and is constituted by a single portion thicker than the triple portion, and the triple portion and the single portion are provided alternately in the yarn traveling direction. is there.

[0006] The invention of a special false twisted slab composite yarn according to a second aspect is characterized in that, in the invention according to the first aspect, a single heater processed yarn is used as the core yarn. The invention of a special false twist slab composite yarn according to a third aspect is characterized in that, in the invention according to the first aspect, a two-heater processed yarn is used as the core yarn.

According to a fourth aspect of the invention, there is provided a special false twisted slab composite yarn, wherein a drawn yarn is used as the core yarn in the invention according to any one of the first to third aspects. Things.

[0008] The invention of the woven fabric according to claim 5 is based on claim 1.
To a special false twisted slab composite yarn according to any one of claims 1 to 4. Claim 6
The invention of the knitted fabric described in (1) is obtained by knitting using the special false twisted slab composite yarn according to any one of claims 1 to 4.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 2A is an enlarged view of a portion of the special false twisted slab composite yarn before the heat treatment in the false twisting process, and FIG. 2B schematically shows the winding form. FIG. The slab portion 14 constituting the special false-twisted slab composite yarn is formed of a triple portion in which a floating yarn 12 as a filament yarn is wound three times with a core yarn 11 as a filament yarn. Non-slab part 13 is core yarn 1
Floating yarn 12 is formed of a single part wound around one. A large number of the slab portions 14 and the non-slab portions 13 are alternately formed in the direction in which the yarn extends (the yarn direction).

The core yarn 11 is subjected to a processing method such as a false twisting method, a rubbing method, and an air mixing method on the raw yarn, and is heated by passing through two heaters during the processing. Is used. In addition, a drawn yarn that has been subjected to a drawing process before the false twisting is used for the core yarn 11. Further, as the floating yarn 12, a high shrinkage yarn having a shrinkage ratio of 10 to 30% during the heat treatment is used. 10% shrinkage of floating yarn 12
If it is less than 3, the floating yarn 12 does not shrink sufficiently, making it difficult to obtain a desired yarn. If the shrinkage is more than 30%, yarn breakage may occur during shrinkage. Further, an undrawn yarn or the like is used for the floating yarn 12 to prevent breakage of the yarn during shrinkage.

FIG. 1A is an enlarged view of a portion of the special false twisted slab composite yarn after the heat treatment.
(B) is the figure which showed typically the winding form.
In the slab portion 14, the floating yarn 12 triple-wound with respect to the core yarn 11 is contracted while maintaining its winding form. In the non-slab portion 13, the floating yarn 12 has a lesser winding around the core yarn 11 as compared with the slab portion 14, and thus is largely contracted until it becomes substantially linear.
On the other hand, the core yarn 11 made of the two-heater processed yarn hardly shrinks, moves following the shrinkage of the floating yarn 12, and
The yarn surface is densely packed. As a result, the core yarn 11
In addition, the winding form of the floating yarn 12 is completely reversed, and a reversing portion 15 is formed in which the core yarn 11 is wrapped around the floating yarn 12 in the entire non-slab portion 13.

In the reversing portion 15, the core yarn 11 made of the processed yarn is released from the stretched state and the state tightened by the floating yarn 12, so that the interval between the filaments 11a is widened and greatly expanded. Accordingly, the swollen core yarn 11 imparts unprecedented flexibility to the yarn, and provides a soft touch and a supple feel with good touch.

Further, the non-slab portion 13 having the reversing portion 15 is significantly thicker than the slab portion 14, and a clear difference appears between the two because of their presence adjacent to each other.
For this reason, the unevenness of the yarn surface is emphasized conspicuously, and the winding form is different between the non-slab portion 13 and the slab portion 14, so that each has a novel appearance and a new texture is produced. In addition, the above-described special false twist slab composite yarn is not greatly shrunk, and is prevented from forming a crimp, a twist, a loop, and the like in the entire yarn. It is possible to get.

Next, a production apparatus and a production method of the special false twist slab composite yarn will be described. As shown in FIG. 3, the pair of first feed rollers 21 constituting the false twisting portion of the manufacturing apparatus are disposed at the most upstream side of the manufacturing apparatus. Downstream of the first feed roller 21, a first heater 22 and a spinner 2 forming a false twisting portion in order from the upstream side
3, a pair of second feed rollers 24, a second heater 25, and a pair of delivery rollers 26 are provided. Core thread 1
1 is drawn out of a core yarn supply unit (not shown) in a drawn state, is drawn out to a twisting area 20 a by a first feed roller 21, and is sent to a second feed roller 24 through a first heater 22 and a spinner 23. Can be

A pair of third feed rollers 27 is disposed above the first feed roller 21, and a yarn feed guide 28 is provided between the first feed roller 21 and the first heater 22. It is arranged at a predetermined distance from the core yarn 11. The floating yarn 12 is undrawn from the floating yarn supplying section (not shown) by a third feed roller 27 to form the core yarn 1.
It is derived in a state where it is overfeeded than 1. After the derived floating yarn 12 is sent from the third feed roller 27 to the yarn feeding guide 28, it is guided by the yarn feeding guide 28 between the first feed roller 21 and the first heater 22, and
The yarn is joined to the core yarn 11 in the twisting section 20a.

The combined core yarn 11 and floating yarn 12 are instantaneously gripped between the first feed roller 21 and the second feed roller 24, and in this state, the spinner 23 is rotated to form the twisted area 20a. Twisted. The twist of the twisted core yarn 11 and floating yarn 12 is heated and held when the core yarn 11 and floating yarn 12 pass through the inside of the second heater 25. The core yarn 11 and the floating yarn 12 that have passed through the spinner 23 are untwisted in the untwisting section 20b, and are sent from the second feed roller 24 to the delivery roller 26. The twist of the untwisted core yarn 11 and the floating yarn 12 is heated and held when the core yarn 11 and the floating yarn 12 pass through the second heater 25. Then, the formed special false twist slab composite yarn is pulled out from the delivery roller 26 by the drum 29 and the cheese 30 arranged on the side of the delivery roller 26,
Wound on cheese 30.

As shown by a two-dot chain line in FIG. 3, the triple portion of the slab portion 14
Of the floating yarn 12 in the twisting area 20a due to the amount of overfeed and the twisting of the yarn caused by the rotation of the spinner 23, the floating yarn 12 is formed around the core yarn 11 in three turns. In this triple portion, the core yarn 11 that does not shrink by heating is the center, so that its thickness is hardly changed.

The reversing portion 15 of the non-slab portion 13 first twists the floating yarn 12 with the core yarn 11 in the twisting section 20a while being contracted by the first heater 22, and twists the floating yarn 12 in the untwisting section 20b. After being untwisted, it is formed by being further contracted by the second heater 25. This reversing part 15
Since the expanded core yarn 11 is wound around the floating yarn 12 that has shrunk and became thicker, the core yarn 11 becomes significantly thicker than the triple portion, and as a result, the non-slab portion 13 becomes larger than the slab portion 14. Get fat.

Next, false twisting was performed using the apparatus shown in FIG. 3 under the following conditions. Core yarn 11: drawn yarn of polyester, 150 denier / 48 filaments Floating yarn 12: high shrinkage yarn of polyester, 50 denier / 24 filaments Rotation speed of spinner 23: 150,000 rpm False twist number: 1300 T / M First feed roller 21 Feed rate of the second feed roller 24: + 21.0% Feed rate of the delivery roller 26: + 16.8% Temperature of the first heater 22: 130 ° C. Temperature of the second heater 25: 200 ° C. Overfeed of the floating yarn 12 to the yarn 11: 1.5
Double Distance from the yarn feeding guide 28 to the core yarn 11: 23 cm Height from the yarn feeding guide 28 to the third feed roller 27: 14 cm Non-slab portion where single and triple portions alternately occur under the above processing conditions. A special false twisted slab composite yarn having a slab portion 13 and a slab portion 14 was obtained.

A woven fabric is obtained by weaving the special false twisted slab composite yarn produced as described above using at least one of a warp and a weft, and flat knitting the special false twisted slab composite yarn with a knitting machine. A knitted fabric can be obtained by weaving by weft knitting, circular knitting, or the like. The woven or knitted fabric using the special false-twisted slab composite yarn has a slab portion 14.
The unevenness of the surface is enhanced by the difference in thickness of the non-slab portion 13 to exhibit a novel appearance, and has a good texture, and the swelling of the core yarn 11 in the reversing portion 15 provides unprecedented flexibility. Has been granted.

Further, since the special false twist slab composite yarn is a yarn (non-torque yarn) extending in a straight line, it is possible to obtain a woven fabric and a knitted fabric with almost no shrinkage. In addition, in the slab portion 14, the core yarn 11 is firmly tightened by the contracted floating yarn 12. For this reason, if the special false twist slab composite yarn is used as the warp during the formation of the woven fabric, the core yarn 11 and the floating yarn 12 are not displaced from each other or cut off even when the driving force of the raft of the loom is applied. In addition, it is possible to omit a work such as a relaxation operation in which the formed fabric is contracted so as to have a predetermined size.

(Second Embodiment) Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings. The description of the second embodiment will focus on the differences from the first embodiment.

FIG. 4A is an enlarged view of a portion of the special false twisted slab composite yarn of the second embodiment.
(B) is the figure which showed typically the winding form.
As the core yarn 11 of the special false twist slab composite yarn, a one-heater processed yarn that has been subjected to a heat treatment by passing through only one heater at the time of processing is used.

The core yarn 11 composed of one heater processing yarn is
Although it is inferior to the floating yarn 12, it shrinks at the time of false twisting, so that it has a portion that retains the original winding form. As a result, the non-slab portion 13 includes the reverse rotation portion 15 as in the first embodiment and the normal rotation portion 16 in which the floating yarn 12 is wound around the core yarn 11 in a single manner.

In the normal rotation section 16, the core yarn 11 is
It expands greatly by contracting in the state of being tightened. In the reversing portion 15, the core yarn 11 is wound around the floating yarn 12 while contracting, so that the core yarn 11 swells further. The special false twist slab composite yarn having the normal rotation portion 16 and the reverse rotation portion 15 is a yarn like a Taslan (registered trademark) yarn formed as if by a fiber blending process. Therefore, the special false twist slab composite yarn of the second embodiment is a yarn (non-torque yarn) that extends linearly, and the yarn is imparted with unprecedented flexibility by the core yarn 11 that has been further expanded, and Soft and soft to the touch, rich in softness and suppleness.

Each embodiment can be modified and embodied as follows. The core yarn 11 and the floating yarn 12 may be an acetate-based, rayon-based, nylon-based, or polyester-cation-based filament yarn. Alternatively, the core yarn 11 and the floating yarn 12 may be filament yarns of different materials.

[0028] For the core yarn 11 and the floating yarn 12, original yarns colored differently from each other may be used. With such a configuration, the color difference between the slab portion 14 and the non-slab portion 13 makes it possible to obtain a special false twisted slab composite yarn having a novel and good appearance.

Further, a technical idea which can be grasped from the embodiment will be described below. The special false twist slab composite yarn according to any one of claims 1 to 4, wherein the floating yarn is a high shrinkage yarn having a shrinkage ratio after heat treatment set to 10 to 30%. With this configuration, the floating yarn can be effectively contracted.

The special false twist slab composite yarn according to any one of claims 1 to 4, wherein an undrawn yarn is used as the floating yarn. With this configuration, it is possible to prevent the contracted floating yarn from being cut.

The woven fabric according to claim 5, wherein the special false twist slab composite yarn is formed by using a warp yarn. With this configuration, it is possible to prevent the core yarn and the floating yarn from being displaced or cut off from each other even when a hitting force is applied by the raft of the loom.

[0032]

As described above in detail, according to the present invention, the following effects can be obtained. According to the first aspect of the present invention, it is possible to impart unprecedented flexibility while producing a new appearance and texture, and to obtain a linearly extending yarn (non-torque yarn).

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in (1), the entire non-slab portion can be made the reverse portion. According to the third aspect of the invention, in addition to the effect of the first aspect, the yarn can be made very soft.

According to the invention described in claim 4, claim 1 is
To the effect of the invention according to any one of claims 4 to 5,
Since the core yarn swells at the reversing portion, a soft yarn having high flexibility can be obtained.

According to the fifth and sixth aspects of the present invention, it is possible to provide a new appearance and texture, to provide unprecedented flexibility, and to obtain a product with almost no shrinkage. it can.

[Brief description of the drawings]

FIG. 1A is an enlarged front view of a portion of a special false-twisted slab composite yarn of a first embodiment in a natural state, and FIG. 1B is a schematic diagram showing a winding form thereof.

FIG. 2A is an enlarged front view of a portion of the special false twisted slab composite yarn of the first embodiment during false twisting, and FIG. 2B is a schematic diagram illustrating a winding form thereof.

FIG. 3 is a conceptual diagram showing an apparatus for manufacturing a special false twist slab composite yarn.

FIG. 4A is an enlarged front view of a portion of a special false-twisted slab composite yarn of a second embodiment in a natural state, and FIG. 4B is a schematic diagram illustrating a winding form thereof.

[Explanation of symbols]

11 ... core thread, 12 ... floating thread, 13 ... non-slab part, 14 ...
Slab part, 15 ... reverse part.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) D03D 15/04 D03D 15/04 A D04B 1/20 D04B 1/20 21/00 21/00 B (72) Inventor Shigeyoshi Oya 544 Suga, Masaki-cho, Hashima-shi, Gifu Prefecture UA01 UA06 4L048 AA21 AA50 AB07 AB17 AB18 AB21 AB23 AC11 CA12 CA13 DA01

Claims (6)

[Claims] 1. A slab portion and a non-slab portion are provided by feeding a floating yarn made of a high shrinkage yarn to a core yarn made of a processed yarn and performing false twist processing, and the slab portion is provided with respect to the core yarn. The floating yarn is composed of a triple portion wound threefold, the non-slab portion has a reversal portion in which the core yarn is wound single to the floating yarn, and is composed of a single portion thicker than the triple portion. A special false-twisted slab composite yarn characterized by comprising triple portions and single portions alternately in the yarn direction. 2. The special false twist slab composite yarn according to claim 1, wherein a single heater processed yarn is used as the core yarn. 3. The special false twist slab composite yarn according to claim 1, wherein a two-heater processed yarn is used as the core yarn. 4. The special false twist slab composite yarn according to claim 1, wherein a drawn yarn is used as the core yarn. 5. A woven fabric obtained by weaving using the special false twisted slab composite yarn according to any one of claims 1 to 4. 6. A knitted fabric obtained by knitting using the special false-twisted slab composite yarn according to any one of claims 1 to 4.