JP3686640B2 - False twisted composite yarn and fabric and knitted fabric using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a false twist composite yarn that produces a novel texture when it is made into, for example, a woven fabric or a knitted fabric, and a woven fabric and a knitted fabric using the false twisted composite yarn.
[0002]
[Prior art]
Conventionally, false twisted composite yarns are supplied by supplying float yarns that are drawn yarns (FDY) to core yarns that are undrawn yarns (POY), and by applying false twist processing to these core yarns and float yarns, The yarn was produced so that the slab portion and the non-slab portion were alternately provided in the extending direction of the yarn. In the false twisted composite yarn, the slab portion is composed of a triple portion in which a floating yarn is wound around the core yarn in triplicate. Moreover, the non-slab part is comprised by the single part which has the normal rotation part around which a float floats around a core yarn, and the inversion part around which a core thread winds around a float. In this single part, the reversal part is formed when the core yarn, which is an undrawn yarn, self-extends and the floating yarn is biased when the false twisted composite yarn is heated. And the characteristic external appearance of the false twist composite yarn is brought out by the inversion part and the normal rotation part existing in the same heavy part.
[0003]
[Problems to be solved by the invention]
However, in the false twist composite yarn, the forward rotation part is formed only at the end of the non-slab part at the boundary part between the slab part and the non-slab part, and most of the single part is composed of the inversion part. Therefore, the difference between the inversion portion and the normal rotation portion did not appear clearly. For this reason, the woven fabric and knitted fabric using the false twisted composite yarn are compared with the woven fabric and the knitted fabric using the yarn in which the non-slab portion is composed only of the inversion portion and the yarn in which the non-slab portion is composed only of the normal rotation portion. However, there will be no significant difference. In addition, the difference between the slab portion and the non-slab portion is clear even when the cation yarn or the original yarn is used as at least one of the core yarn and the float yarn, and the colors are different from each other. The difference between the normal part and the normal rotation part did not appear clearly. Therefore, according to the conventional false twist composite yarn, when a woven fabric and a knitted fabric are formed, the difference between the reversal portion and the normal rotation portion does not appear clearly, and the appearance is not lacking in interest, which is not much different from the yarn that is usually obtained. There was a problem that.
[0004]
The present invention has been made paying attention to such problems existing in the prior art. The object is to provide a false twist composite yarn that can clearly show the difference between the inversion portion and the normal rotation portion, and that can bring out a novel texture and appearance, and a fabric and a knitted fabric using the false twist composite yarn. It is in.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention of the false twist composite yarn according to claim 1 is characterized in that a floating yarn is supplied to the core yarn and false twist processing is performed, so that the slab portion and the non-slab portion are threaded. a false twist composite yarn that is silk as provided alternately in the extending direction of strip, said the core yarn and the float using the yarn has an undrawn yarn in a semi-stretched state, wherein each slab portion core yarn Each non-slab part is a normal rotation part where the float is wound around the core yarn, and the core yarn is wrapped around the float. In the non-slab portion, each of the non-slab portions has at least one normal rotation portion having a reversal portion on both sides. .
[0006]
The invention of the false twist composite yarn according to claim 2 is characterized in that there are 1 to 28 normal rotation portions having inversion portions on both sides in one non-slab portion.
The invention of the false twist composite yarn according to claim 3 is the invention according to claim 1 or claim 2, wherein the core yarn and the float yarn are made of an original yarn or a cationic yarn. It is characterized by.
[0007]
The invention of the woven fabric according to claim 4 is obtained by weaving using the false twist composite yarn according to any one of claims 1 to 3.
The invention of the knitted fabric according to claim 5 is obtained by knitting using the false twist composite yarn according to any one of claims 1 to 3.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an enlarged view of a place where a false twist composite yarn is present. The slab portion 13 constituting the false twist composite yarn is composed of a triple portion in which a float yarn 12 as a filament yarn is wound around the core yarn 11 as a filament yarn. The non-slab portion 14 is composed of a single portion having a forward rotation portion 15 in which the float yarn 12 is wound around the core yarn 11 and a reversing portion 16 in which the core yarn 11 is wound around the float yarn 12 in a single manner. Has been. A large number of these slab portions 13 and non-slab portions 14 are randomly formed in length along the direction in which the yarn extends (yarn direction).
[0009]
Wherein the core yarn 11 and the float 12, the yarn was their respective unstretched yarn or unstretched yarn semi stretched state is used. Here, the undrawn yarn is a yarn called POY, and unlike drawn yarn (FDY) obtained by sufficiently drawing the filament at the spinning stage, the filament properties are stabilized during drawing at the spinning stage. Yarn obtained by stopping to a certain extent. In addition, that the property of the filament is stable means that the yarn is not stretched by a weak external force applied during conveyance. In other words, since the properties of filaments are sufficiently stable at the spinning stage, the properties of the filaments can hardly be changed after spinning. It is possible. The undrawn yarn is a yarn called UDY, which is a yarn obtained without stretching in the spinning stage, unlike undrawn and drawn yarns that are stretched to some extent at the spinning stage. is there. The undrawn yarn, like the undrawn yarn, can change the properties of the filament after spinning depending on the processing conditions.
[0010]
The false twist composite yarn performs false twist processing on the core yarn 11 and the float yarn 12 and heat treatment in addition to the false twist processing, whereby the core yarn 11 and the float yarn made of undrawn yarn or undrawn yarn. The yarn is made by shrinking 12. That is, the slab portion 13 is formed by triple winding of the floating yarn 12 around the core yarn 11 by false twisting and contracting both the core yarn 11 and the floating yarn 12 while maintaining the winding form by heat treatment. Has been. The reason why the winding form is maintained in the slab portion 13 is that the winding of the floating yarn 12 with respect to the core yarn 11 is triple and becomes strong.
[0011]
On the other hand, when the non-slab portion 14 is subjected only to false twisting, the winding form thereof is the form of the normal rotation portion 15 in which the float 12 is wound on the core yarn 11 in a single sweet manner. On the other hand, the core yarn 11 and the float yarn 12 that have been subjected to the heat treatment contract, shrink in the direction in which the yarn extends, and become thicker, so that they are packed in a narrow range on the yarn at high density. This will cause a bias in each other. As a result of the occurrence of such a bias, the winding form of the core yarn 11 and the floating yarn 12 is randomly reversed in the non-slab portion 14, and the core yarn 11 is wound around the floating yarn 12 on the non-slab portion 14 in a single layer. inverted unit 16 with the length are formed at random.
[0012]
Furthermore, in the false twist composite yarn, both the core yarn 11 and the float yarn 12 are contracted to increase the bias, and at least one forward rotation portion 15 having the reversal portions 16 on both sides. Is formed. Accordingly, the non-slab portion 14 is composed of a single portion mainly composed of the reversing portion 16, and the reversing portion 16 appears clearly due to the difference from the normal rotation portion 15, and the entire yarn is complicated and rich in change. It becomes. And false twist composite yarn brings on the novel texture and external appearance by the difference in the winding form of the normal rotation part 15 of the slab part 13, the non-slab part 14, and the inversion part 16, the difference in the touch, etc. At this time, in one non-slab part 14, it is preferable that the forward section 15 having an inverting portion 16 on both sides are present in positions 1-28. When there are less than one normal rotation portion 15 having the reversal portions 16 on both sides existing in one non-slab portion 14, the difference between the normal rotation portion 15 and the reversal portion 16 is not clear, and on the contrary, a monotonous yarn There is a risk of becoming. Further, if there are more than 28 locations, the reversing portion 16 becomes inconspicuous, and there is a possibility that it cannot be clearly displayed.
[0013]
Further, it is preferable to use yarns having different color tones for the core yarn 11 and the float yarn 12, respectively. When the core yarn 11 and the float yarn 12 having different colors are used, the color tone of the float yarn 12 appears on the surface of the yarn in the slab portion 13, and the color tone of the core yarn 11 appears on the surface of the yarn in the non-slab portion 14. The appearance of false twisted composite yarn becomes more complex and varied, creating a novel color. In this case, it is preferable to use an original yarn or a cationic yarn for at least one of the core yarn 11 and the float yarn 12. The original yarn is a yarn colored at the spinning stage, and the cationic yarn is a yarn that can be dyed only with a cationic dye. In particular, when a cationic yarn is used for either the core yarn 11 or the float yarn 12, a difference in color tone can be clarified, and a novel hue can be produced.
[0014]
Furthermore, it is preferable to use a yarn having a thickness of 1.5 to 2 times and a number of filaments of 1 to 2 times that of the float yarn 12 as the core yarn 11. When the core yarn 11 having a larger thickness than the float 12 and having a larger number of filaments is used, the difference in contraction rate between the core yarn 11 and the float 12, particularly the contraction rate of the core yarn 11 is smaller than the contraction rate of the float 12. As a result, the reversal portion 16 is easily formed, and the false twist composite yarn brings out a novel texture and appearance.
[0015]
Next, the manufacturing apparatus and manufacturing method of a false twist composite yarn are demonstrated.
FIG. 2 is a conceptual diagram showing a false twist composite yarn manufacturing apparatus. A core yarn supply unit 20 is disposed on the most upstream side of the manufacturing apparatus. The core yarn supply unit 20 is provided with a core yarn package 21 that holds the core yarn 11, and a pair of core yarn feed rollers that are disposed on the sides of the core yarn package 21 and that lead out the core yarn 11 from the core yarn package 21. 22. A first feed roller 23 constituting a false twisting mechanism is disposed on the side of the core yarn feed roller 22, and the core yarn 11 led out by the core yarn feed roller 22 is placed inside the apparatus by the first feed roller 23. To the twisted section 24 of In the core yarn supply unit 20, a first hot pin 25 is disposed between the core yarn feed roller 22 and the first feed roller 23. The core yarn 11 is heated by the first hot pin 25 and is sent out to the twisting section 24 in a half-stretched state to which tension is applied.
[0016]
Downstream of the first feed roller 23, a first heating unit 26, a spinner 27, a pair of second feed rollers 28, and a second heating unit 29 constituting a false twisting mechanism are arranged in order from the upstream side. The core yarn 11 that has passed through the first feed roller 23 is sent to the second feed roller 28 through the first heating unit 26 and the spinner 27. Further, a float supply unit 30 is disposed between the first feed roller 23 and the first heating unit 26 on the side thereof.
[0017]
The float supply unit 30 includes a float package 31 that holds the float 12, and a pair of float feed rollers that are arranged on the sides of the float package 31 and that guide the float 12 from the float package 31. 32. An overfeed roller 33 and a guide 34 constituting a false twisting mechanism are disposed on the side of the float feed roller 32. The floating yarn 12 led out by the floating yarn feed roller 32 is fed out to the twisting section 24 through the guide 34 in a state where it is overfed from the core yarn 11 by the overfeed roller 33. In the float supply unit 30, a second hot pin 35 is disposed between the float feed roller 32 and the overfeed roller 33. The float 12 is heated by the second hot pin 35 and sent out to the twisting section 24 in a semi-stretched state with a tension applied.
[0018]
The float 12 fed to the twisting section 24 is joined to the core yarn 11 between the first feed roller 23 and the first heating unit 26. The joined core yarn 11 and float yarn 12 are twisted together in the twisting section 24 by the rotation of the spinner 27, and are heated and held when the twist passes through the first heating unit 26. Thereafter, the core yarn 11 and the float yarn 12 that have passed through the spinner 27 are untwisted in the untwisting section 36, and are sent to the second heating unit 29 through the second feed roller 28. The false twisted composite yarn is manufactured by being heated and held when the twist at the time of untwisting passes through the second heating unit 29. A pair of delivery rollers 37 is disposed downstream of the second heating unit 29, and a drum 38 and a cheese 39 are disposed on the sides of the delivery rollers 37. The false twisted composite yarn in the second heating unit 29 is drawn out by the delivery roller 37, wound around the cheese 39, and collected.
[0019]
The slab portion 13 of the false twist composite yarn is positively transmitted in the twisted region 24 of the manufacturing apparatus, in which the floating yarn 12 that is over-fed from the core yarn 11 is propagated by twisting of the yarn by the rotation of the spinner 27. Is formed by wrapping around the core yarn 11 in triplicate. The forward rotation portion 15 and the reversal portion 16 of the non-slab portion 14 twist and untwist unstretched yarn or unstretched yarn in a semi-stretched state, and the first heating unit 26 during twisting and the second during untwisting. It is formed by being heated and contracted by the heating unit 29. In other words, unstretched or unstretched yarn twisted and untwisted in a semi-stretched state contains a portion that is strongly stretched and a portion that is weakly stretched on the yarn due to variations in the concentration of stress, etc. Existed. These strongly stretched portions and weakly stretched portions have different shrinkage ratios upon heating, and these portions are present on the respective yarns of the core yarn 11 and the float yarn 12. The normal rotation part 15 and the reversal part 16 are formed by the difference in the shrinkage rate.
[0020]
Next, false twisting was performed under the following processing conditions using the manufacturing apparatus shown in FIG.
Core yarn 11: 160 denier / 36 filament POY
Floating yarn 12: POY made of 85 denier / 24 filament cationic yarn
Drawing ratio of core yarn 11 by first hot pin 25: 1.4 times Temperature of first hot pin 25: 80 ° C.
Drawing ratio of float 12 by second hot pin 35: 1.36 times Temperature of second hot pin 35: 80 ° C.
Rotation speed of spinner 27: 300000 rpm
Number of false twists: 2350 T / M
Feed rate of first feed roller 23: + 4.1%
Overfeed of floating yarn 12 to core yarn 11 by overfeed roller 33: 1.5 times Feed rate of second feed roller 28: + 7.5%
Winding take-up rate by drum 38: + 5%
Heating temperature by the first heating unit 26: 200 ° C.
Heating temperature by the second heating unit 29: 215 ° C.
The above processing conditions, it was possible to obtain a false twist composite yarn comprising a non-slab portion 14 having a random forward portion 15 and the inverted portion 16 about the length. A woven fabric is obtained by weaving the false twisted composite yarn thus produced as at least one of warp or weft, and the false twisted composite yarn is flat knitted, flat knitted, circular knitted, etc. A knitted fabric was obtained by knitting. When these woven fabrics and knitted fabrics were dyed with a cationic dye, only the floating yarn 12 was dyed, so that the inversion portion 16 could be clearly and clearly discriminated on the fabric surface of the woven fabrics and knitted fabrics. This is because the core yarn 11 that is not dyed in the reversing portion 16 exists on the surface of the yarn. And by using the false twisted composite yarn, the difference between the reversing portion 16 and the normal rotation portion 15 was emphasized, and a woven fabric and a knitted fabric having a characteristic appearance and creating a novel texture could be obtained. .
[0021]
The effects exhibited by the above embodiment will be described below.
The false twist composite yarn of the embodiment is obtained by false twisting a core yarn 11 and a float yarn 12 made of a non- stretched yarn or an unstretched yarn in a semi-stretched state, and the float yarn 12 is formed on the core yarn 11. The slab portions 13 formed by wrapping around three times and the non-slab portions 14 are alternately provided in the extending direction of the yarn. The non-slab portion 14 has a length of a normal rotation portion 15 formed by winding the float yarn 12 around the core yarn 11 and a reversing portion 16 formed by winding the core yarn 11 around the float yarn 12. The reversing unit 16 is mainly configured. Therefore, the reversing portion 16 is mainly formed in the non-slab portion 14 so that the reversing portion 16 is conspicuous, and not only the difference between the reversing portion 16 and the triple portion but also the difference between the reversing portion 16 and the normal rotation portion 15 is clear. Because it can appear, it can bring out a novel texture and appearance.
[0022]
In addition, in one non-slab portion 14, there are configured normal rotation portions 15 having inversion portions 16 on both sides at 1 to 28 locations. Therefore, the difference between the normal rotation part 15 and the reversal part 16 in the non-slab part 14 can be clarified, and the difference between the reversal part 16 and the normal rotation part 15 can be clearly conspicuous.
[0023]
In addition, by using an original yarn or a cationic yarn for at least one of the core yarn 11 and the float yarn 12, a difference in color tone between the reversing portion 16 and other portions becomes clear, and the reversing portion 16 is further conspicuous. be able to.
[0024]
In addition, the woven fabric and the knitted fabric obtained using the false twist composite yarn have a distinctive appearance in which the inversion portion 16 is emphasized more than the triple portion and the normal rotation portion 15, and a novel texture can be created. it can.
[0025]
In addition, this embodiment can also be changed and embodied as follows.
-For example, undrawn yarn may be used for the core yarn 11, and undrawn yarn may be used for the floating yarn 12, and different yarns may be used for each. When comprised in this way, a thread | yarn with more various winding forms can be obtained by mutually different thread | yarns.
[0026]
Further, the technical idea that can be grasped from the embodiment will be described below.
The false twist composite yarn according to any one of claims 1 to 3, wherein yarns dyed in different colors are used for the core yarn and the float yarn, respectively. When comprised in this way, a novel texture can be brought out by the difference in the color tone in an inversion part and other places.
[0027]
A manufacturing method for manufacturing the false twisted composite yarn according to any one of claims 1 to 3, wherein the undrawn yarn or the undrawn yarn is a core yarn made of the undrawn yarn or the undrawn yarn. A method for producing a false twist composite yarn, wherein the float yarn is fed in an overfeed state, the core yarn and the float yarn are false twisted, and the core yarn and the float yarn are subjected to heat treatment. When comprised in this way, the inversion part can appear clearly and the false twist composite yarn which can produce a novel texture can be manufactured easily.
[0028]
A manufacturing device for manufacturing the false twist composite yarn according to any one of claims 1 to 3, wherein the core yarn is an undrawn yarn or an undrawn yarn with respect to a core yarn made of the undrawn yarn or the undrawn yarn. Is provided in the overfeed state to twist and untwist the core yarn and the float yarn, and the false twist mechanism, and the core yarn and the float yarn are subjected to heat treatment. And a pair of heating units for heating and holding the twisted and untwisted yarn. When comprised in this way, the inversion part can appear clearly and the false twist composite yarn which can produce a novel texture can be manufactured easily.
[0029]
【The invention's effect】
As described in detail above, the present invention has the following effects.
According to the invention described in claim 1 or claim 2, the difference between the normal rotation part or the triple part and the reversal part can be clearly shown, and a novel texture and appearance can be brought out.
[0030]
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the change in the color tone clearly appears in the inversion part, and the forward rotation part or the triple part and the inversion part By mixing colors with each other, it is possible to bring out a novel hue.
[0031]
According to invention of Claim 4 and Claim 5, the difference of a normal rotation part or a triple part, and an inversion part appears clearly, and the textile fabric or knitted fabric which can bring out a novel texture can be obtained.
[Brief description of the drawings]
FIG. 1 is an enlarged front view of one portion of a false twist composite yarn according to an embodiment.
FIG. 2 is a conceptual diagram illustrating a false twist composite yarn manufacturing apparatus according to an embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Core yarn, 12 ... Floating yarn, 13 ... Slab part, 14 ... Non-slab part, 15 ... Forward rotation part, 16 ... Reversal part

Claims (5)

A false-twisted composite yarn produced by alternately supplying slab portions and non-slab portions in the direction in which the yarn extends by supplying floating yarn to the core yarn and performing false twist processing,
For the core yarn and the float yarn, a yarn in which an undrawn yarn is in a semi-stretched state is used, and each slab portion is composed of a triple portion in which the float yarn is wound around the core yarn in a triple manner, and each non-slab portion Has a normal rotation part around which the float is wound around the core yarn and a reversing part around which the core yarn is wrapped around the float at random, and each non-slab part has In this case, the false twist composite yarn is characterized in that at least one forward rotation portion having inversion portions on both sides is formed. The false-twisted composite yarn according to claim 1, wherein normal rotation portions having inversion portions on both sides are present at 1 to 28 locations in one non-slab portion. The false twist composite yarn according to claim 1 or 2, wherein an original yarn or a cationic yarn is used for at least one of the core yarn and the float yarn. A woven fabric obtained by weaving using the false twist composite yarn according to any one of claims 1 to 3. A knitted fabric obtained by knitting using the false twist composite yarn according to any one of claims 1 to 3.

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