JP4787431B2 - Spun-tone processed yarn, method for producing the same, and woven / knitted fabric including the processed yarn - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spanned processed yarn having both a spanned texture and a thick spot, a method for producing the same, and a woven or knitted fabric including the processed yarn, and more particularly, a spun yarn composed of natural fibers. The present invention relates to a spanned processed yarn having a natural patchy feeling, squeaky feeling and stiffness, and excellent in convergence, a method for producing the same, and a woven or knitted fabric including the processed yarn.
[0002]
[Prior art]
Spun yarns composed of natural fibers have a natural texture, squeaky, and firm texture peculiar to spun yarns, and are widely used as textile materials for clothing.
[0003]
On the other hand, chemical fiber multifilaments have characteristics such as good productivity, quality maintenance, and easy addition of special functions. Using these chemical fiber multifilaments, a spun yarn-like structure composed of natural fibers is used. Many processed yarns have been proposed.
[0004]
For example, Japanese Laid-Open Patent Publication No. 63-99344 discloses a false twisted two-layer structure yarn in which one sheath yarn is formed in a single wound structure with respect to a core yarn using a false twist processing apparatus. Yes.
[0005]
Specifically, the core yarn is a drawn yarn, the sheath yarn is composed of an intermediately oriented yarn, the difference between the sheath yarn and the core yarn is 45% to 150%, and the sheath yarn is substantially around the core yarn. Without a multiple winding structure, the core yarn is wound tightly in a single winding state, and the winding state has a winding reversal period of 3 mm or less, and the entire yarn has a design-like thickness variation. This is a false twisted two-layer structure yarn.
[0006]
In order to manufacture this, the sheath yarn is supplied and wound to the core yarn through the sheath yarn insertion guide arranged in close proximity to the yarn (core yarn) that is rotating in the false twist in the false twist crimping process. In attaching, a drawn yarn is used as the core yarn, an intermediately oriented yarn is used as the sheath yarn, and the sheath yarn is supplied to the core yarn under an overfeed of 45% to 150%. The linear distance between the winding start point of the wire and the separation point of the sheath yarn from the sheath yarn insertion guide is 5 mm or less, and the sheath yarn is supplied at an angle of 45 ° or less with respect to the core yarn from the traveling direction of the core yarn. A false twisted two-layer structure yarn is obtained that is useful as a refreshing material.
[0007]
Also, for example, according to Japanese Patent Laid-Open No. 3-14642, a single wound structure with one sheath thread is formed on the core yarn, and one push thread has a triple wound structure around it. A formed composite false twisted yarn is disclosed. This composite false twisted yarn is configured so that the slab effect of the triple wound portion, which has been unavoidable in the past, disappears in appearance, and only the twisted yarn effect is utilized. It is to be provided.
[0008]
[Problems to be solved by the invention]
However, the manufacturing method of false twisted two-layer structure yarn disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 63-99344 is based on how to increase the winding density of the sheath yarn composed of a single yarn and wind it in a single layer. There is a technical point on how to attach it, and the sheath yarn is supplied with a relatively high overfeed amount by limiting the conditions at the winding start point. Therefore, the resulting false twisted two-layer structure yarn is well-balanced (quality) as a whole, has a high twist effect, and has a refreshing feeling. The texture with was poor.
[0009]
In addition, the false twisted yarn disclosed in the above-mentioned Japanese Patent Laid-Open No. Hei 3-14642 is a plain twisted twisted knitted fabric that utilizes only the twisted yarn effect regardless of whether it has a single winding portion and a triple winding portion. It is intended to provide the processed yarn to be given, and the entire yarn has a tight structure, and the visual thickness spots have substantially disappeared. It was extremely scarce.
[0010]
The object of the present invention is to solve such problems in the prior art, and has both natural spotting feeling like a spun yarn composed of natural fibers, squeaky feeling and stiffness, and excellent convergence. An object of the present invention is to provide a spanned processed yarn, a method for producing the same, and a woven or knitted fabric including the processed yarn.
[0011]
[Means for Solving the Problems]
The first gist of the present invention is a spanned yarn composed of four yarns which are chemical fiber multifilaments, and the yarn B and the yarn C are each single with the yarn A as a core yarn. A winding structure is formed, and the yarn D is wound around the outer periphery of the yarn A, the yarn B, and the yarn C while intermittently forming a triple winding structure. It is in the spanned thread.
[0012]
In the spanned yarn of the present invention, it is necessary that the yarn B and the yarn C each form a single winding structure with the yarn A as a core yarn.
The presence of the multifilament yarn A as the core yarn provides a firm texture that is a feature of the spanned yarn of the present invention. In addition, the yarn B and the yarn C each independently form a single winding structure, thereby forming a bulky structure as compared with the case where one yarn is single winding. For this reason, an unprecedented feeling of fluffiness is obtained. Furthermore, due to the subtle phase shift between the single-winding structure of the yarn B and the single-winding structure of the yarn C, a natural patchy feeling is formed in the yarn length direction of the spanned yarn of the present invention.
[0013]
In the spanned yarn of the present invention, the yarn D needs to be wound around the outer periphery of the yarn A, the yarn B, and the yarn C while intermittently forming a triple winding structure. is there. That is, by forming the triple winding structure intermittently with the yarn D, the form stability of the single winding structure formed by the yarn A, the yarn B, and the yarn C is maintained. The spun tone processed yarn of the present invention is provided with excellent convergence.
[0014]
In addition, as a result of measuring various physical properties of a spun yarn generally composed of natural fibers such as cotton and carrying out extensive comparison studies, in the spanned processed yarn of the present invention, natural spun yarn similar to spun yarn composed of natural fibers is used. In order to effectively obtain a smooth feeling, squeaky feeling and stiffness, the Worcester spot of the processed yarn is 9% to 20% and the bulk height is 2.3 cm. ^Three / G or more 3.0cm ^Three / G or less, and the bulky compression rate is preferably 25% or more and 50% or less. Furthermore, Wooster spots are 10% or more and 15% or less, and the bulk height is 2.4 cm. ^Three / G or more 2.8cm ^Three / G or less, and the bulky compression ratio is more preferably 30% or more and 40% or less. In addition, the spanned yarn of this invention which has these various physical-property values can be obtained by optimizing the fineness and physical property of the yarn which comprises, and the processing condition setting at the time of manufacture.
[0015]
The material of the yarn A, yarn B, yarn C and yarn D constituting the spanned yarn of the present invention is not particularly limited as long as it is a chemical fiber multifilament, and is matched to the purpose and properties of the product. For example, polyester multifilaments that are synthetic fibers, nylon multifilaments, acrylic multifilaments, etc., semisynthetic fibers such as acetate multifilaments, triacetate multifilaments, etc., rayon multifilaments that are regenerated fibers, etc. These materials, conjugate multifilaments composed of a plurality of components, mixed spun multifilaments, and the like can be used. Further, all the yarns constituting the processed yarn may be the same material, or various materials may be combined, and selection is possible within the scope of the object of the present invention. Furthermore, the fineness, the number of filaments, the cross-sectional shape, the gloss, and the dyeing characteristics of the yarn to be used may be selected according to the desired texture, design effect, and color tone effect.
[0016]
In order to obtain the characteristics of the spanned processed yarn of the present invention more effectively, in order to obtain woofer spots, bulk height, bulky compressibility, and the like as preferable characteristic values, the processed yarn is mainly disposed on the surface. It is preferable to reduce the single fiber fineness of the yarn B and the yarn C having a single winding structure. For example, when the single fiber fineness is 5 dtex or less, a soft and fluffy feeling can be effectively obtained, and a spanned texture, which is the object of the present invention, can be easily obtained.
[0017]
In addition, the yarn D that intermittently forms a triple wound structure around the outer periphery of the yarn A, the yarn B, and the yarn C has a fineness in order to suppress the slab design by the triple wound structure. Is preferably thin. For example, the ratio of the fineness of the yarn D to the total fineness of the yarn A, the yarn B, and the yarn C is preferably 0.8 or less, more preferably 0.4 or less, and most preferably 0.2 or less. Furthermore, in order to further strengthen the yarn form stability, the yarn D is more preferably selected from chemical fiber multifilaments having shrinkage properties with respect to heat. For example, the boiling water shrinkage is 3% or more and 25% or less. It is preferable to select a chemical fiber multifilament of 8% or more and 20% or less.
[0018]
The second gist of the present invention is that in the false twisting process in which the sheath yarn and the press yarn are excessively supplied to the core yarn, the yarn A is supplied to the false twist twist region, and the yarn B is wound once. Further, after the yarn C is wound once around the outer circumferences of the yarn A and the yarn B, the yarn D is subsequently intermittently arranged around the outer circumferences of the yarn A, the yarn B, and the yarn C. The present invention resides in a method for producing a spanned yarn characterized by triple winding.
[0019]
In the method for producing a spanned yarn of the present invention, it is important that the two yarns are separately wound once around the outer periphery of the yarn A.
By supplying the multifilament yarn A as a core yarn, a firm texture is imparted, and the yarn B and the yarn C are separately wound around the outer circumference of the yarn A separately, Combined with the formation of the concavo-convex shape associated with the single winding of the strip B, the single winding of the yarn C is further formed on the concavo-convex shape, and an unprecedented fluffy feeling can be imparted. It is also possible to give a natural sensation in the yarn length direction by causing a slight phase shift of each single winding of B and yarn C.
[0020]
On the other hand, it is important that the yarn D is intermittently triple wound around the outer periphery of the yarn A, the yarn B, and the yarn C.
That is, it is formed by the yarn A, the yarn B, and the yarn C by intermittently forming a triple winding portion with the yarn D around the outer periphery of the yarn A, the yarn B, and the yarn C. Thus, it is possible to maintain the form stability of the single wound structure, and it is possible to impart excellent convergence to the entire spanned yarn of the present invention.
[0021]
In addition, it is preferable to use the yarn with a finer fineness within a range in which the processing stability can be maintained, and the yarn D has a conventional twisted processing by suppressing the design effect of the triple wound structure by the yarn D. It becomes possible to obtain a spanned yarn different from the yarn or the design yarn.
[0022]
In the above-described manufacturing method of the spanned yarn according to the present invention, the yarn feeding tension to the twisted region of the yarn A adjusted by the magnet tensor may be appropriately set in consideration of processing stability. Further, the distance from the yarn A to each guide may be appropriately set in consideration of processing stability and the like.
[0023]
Further, the combined yarn angle (θB) at the single yarn winding point where the yarn B is wound once with respect to the yarn A is 20 degrees or more and 80 degrees considering the form of the single winding structure and the formation stability. It is preferable that it is below, and 30 degrees or more and 70 degrees or less are more preferable. Further, for the above-mentioned reasons, the stitching angle (θC) at the stitching point where the yarn C is wound once with respect to the yarn A is preferably 20 degrees or more and 80 degrees or less, and 30 degrees or more and 70 degrees or less. Is more preferable. In addition, in consideration of processing stability, it is more preferable that the combined yarn angle θC is larger than the combined yarn angle θB. Note that the respective combined yarn angles θB and θC are the fineness ratio of the yarns B and C to be combined, the tension in the twisted region of the yarn A set by the magnet tensor, the overrunning of the yarn B or the yarn C. It can be appropriately set according to processing conditions such as feed rate and false twist number.
[0024]
The overfeed rate of the yarn B and the yarn C with respect to the yarn A may be appropriately set in consideration of the fineness of the constituent yarn, the winding state, etc., but it is soft and bulky so as not to form an excessively tightened structure. In order to form a single wound structure, 0% to 50% is preferable, and 5% to 40% is more preferable.
[0025]
In addition, the overfeed rate of the yarn D with respect to the combined yarn body composed of the yarn A, the yarn B, and the yarn C is set as appropriate in consideration of further strengthening the form stability of the processed yarn. However, it is preferably 50% or more and 120% or less, and more preferably 70% or more and 100% or less.
[0026]
As described above, by optimizing processing conditions such as tension, each overfeed rate, false twist number, and combined yarn angle, characteristic values such as Wooster spots, bulk height, and bulky compressibility are preferred. The characteristics of the spanned yarn can be obtained more effectively.
[0027]
The third gist of the present invention resides in a woven or knitted fabric including the above-described spanned yarn.
The woven or knitted fabric containing the spanned yarn of the present invention may be determined in the range in which the blend ratio and the woven or knitted fabric can obtain the desired texture and product appearance. Can be selected. The spanned yarn of the present invention may be additionally twisted or twisted with other fibers as necessary, and is not particularly limited as long as it is within the scope of the object of the present invention. Furthermore, although there are no particular limitations on the dyeing finishing method, application, etc., the larger the ratio of the processed yarn of the present invention, the better the knitted or knitted fabric that takes advantage of its features such as texture and mottle.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be specifically described by way of examples.
In the spun toned yarn of the present invention, the yarn A, which is a multifilament, becomes the core yarn, so that a firm texture is imparted. In addition, the yarn B and the yarn C each independently have a single winding structure, so that a more bulky structure can be formed as compared with the case where one yarn is wound once. As a result, an unprecedented squeaky feeling is obtained. Further, the subtle phase shift between the single wound structure of the yarn B and the single wound structure of the yarn C gives a natural sensation in the yarn length direction of the spanned yarn of the present invention.
[0029]
In the spanned yarn of the present invention, the yarn D is further wound around the outer periphery of the yarn A, the yarn B, and the yarn C while intermittently forming a triple winding structure. Therefore, the form stability of the single wound structure formed of the yarn A, the yarn B, and the yarn C is maintained.
[0030]
In the spanned processed yarn according to the present embodiment, in order to effectively obtain a natural texture such as a spun yarn composed of natural fibers, the processed yarn has a Wooster spot of 9% or more and 20% or less, and a bulky height. Is 2.3cm ^Three / G or more 3.0cm ^Three / G or less and a bulky compression rate of 25% or more and 50% or less.
[0031]
FIG. 1 shows a schematic configuration of the apparatus for producing a spanned yarn according to the present invention.
Specifically, four yarns A to D are arranged in multiple stages, and the tension of the yarn A is adjusted by the magnet tensor 5 and is supplied to the false twisting region via the guide 6. On the other hand, the yarn B and the yarn C are supplied in an excessive supply state to the yarn A by the feed roller 7 and the feed roller 9, respectively, and the yarn D is also supplied in an excessive supply state by the feed roller 11. .
[0032]
Below the guide 6 of the yarn A, guides 8, 10, and 12 of the yarns B to D are sequentially arranged. Each of the guides 8 and 10 of the yarn B and the yarn C has an adjusting means (not shown) for adjusting the intrusion angle, that is, the combined yarn angles θB and θC, with respect to the thread passage of the yarn A. ing. The yarn D is twisted and traveled by a false twist unit 15 with a guide 12 at a fixed distance from a yarn body composed of the yarn A, the yarn B, and the yarn C as a fulcrum. A triple winding structure is intermittently formed around the outer periphery of the combined yarn while traversing up and down with respect to the yarn axis direction of the body.
[0033]
A contact-type first heater 13 is arranged below the yarn joining point of the yarn D, and further on the downstream side, the false twist unit 14, the first delivery roller 15, the contact-type second heater 16, and the second Deliberry rollers 17 are sequentially arranged, and the spanned yarn that has passed through the second delivery roller 17 is guided to the winder 18.
[0034]
As described above, when the yarn D is intermittently triple-wound around the combined yarn composed of the yarn A, the yarn B, and the yarn C, the heat-fixing is subsequently performed by the contact-type first heater 13. Is done. Here, the triple winding structure by the yarn D is firmly fixed in form and maintains the form after passing through the false twisting unit 15, but the parts other than the triple winding structure pass through the false twisting unit 15. Later, it is untwisted to exhibit a twisted form opposite to the false twisting direction. Subsequently, a heat setting process is performed by the second heater 16 between the first delivery roller 15 and the second delivery roller 17, and the paper is wound by the winder 18.
[0035]
In the method for producing a spanned processed yarn of the present invention, the yarn feeding tension to the twisted region of the yarn A adjusted by the magnet tensor 5 may be appropriately set in consideration of processing stability. Further, the distance from the yarn A to each of the guides 6, 8, 10, and 12 may be appropriately set in consideration of processing stability and the like.
[0036]
The combined yarn angle θB at the combined point of the yarn B with respect to the yarn A is preferably 20 degrees or more and 80 degrees or less, and preferably 30 degrees or more and 70 degrees in consideration of the form of the single winding structure and the formation stability. The following is more preferable. In addition, the combined yarn angle θC at the combined point of the yarn C with respect to the yarn A is preferably 20 degrees or more and 80 degrees or less, more preferably 30 degrees or more and 70 degrees or less, in addition, In consideration of processing stability, it is more preferable that the combined yarn angle θC is larger than the combined yarn angle θB. Note that the respective yarn angles θC and θB are the fineness ratio between the yarns to be combined, the tension in the twisted region of the yarn A set by the magnet tensor 5, the overfeed rate of the yarn B or the yarn C. , And can be appropriately set according to processing conditions such as the number of false twists.
[0037]
The overfeed rate of the yarn B and the yarn C with respect to the yarn A may be appropriately set in consideration of the fineness of the constituent yarn, the winding state, etc., but it is soft and bulky so as not to form an excessively tightened structure. In order to form a single wound structure, 0% to 50% is preferable, and 5% to 40% is more preferable.
[0038]
In addition, the overfeed rate of the yarn D with respect to the combined yarn body composed of the yarn A, the yarn B, and the yarn C is set as appropriate in consideration of further strengthening the form stability of the processed yarn. However, it is preferably 50% or more and 120% or less, and more preferably 70% or more and 100% or less.
[0039]
Hereinafter, the present invention will be described more specifically with reference to examples.
In addition, the Wooster spot in this invention, a bulk height, and a bulky compressibility are measured as follows.
[0040]
Wooster spots: Normal inert values measured at a yarn speed of 8 m / min using USTER TESTER (manufactured by ZELLWEGER USTER) were defined as Wooster spots.
[0041]
Bulkiness value: The winding tension is 1/20 × 0.9807 × 9/10 (cN / dtex), and after winding the sample on a constant volume spool at a constant speed, the sample weight is measured and the volume per gram is determined. Asked. The average value of arbitrary 5 samples was made into the bulky value.
[0042]
Bulky compression value: An average value of 5 samples measured according to JIS L 1090.
[0043]
Example 1
False twisting machine (LS-6 manufactured by Mitsubishi Heavy Industries, Ltd.) Polyester normal pressure dyeable multifilament bright 84 decitex 48 filaments for yarn A, Triacetate multifilament bright 167 decitex 40 filaments for yarn B and yarn C Polyester high-shrinkage multifilament 33 dtex 24 filament (boiling water shrinkage: 18%) is used as the yarn D, the overfeed rate of the yarn B and the yarn C with respect to the yarn A is 25%, and the yarn A The overfeed rate of the yarn D with respect to is 80%, the temperature of the first heater 13 is 170 ° C., the temperature of the second heater 16 is 200 ° C., the number of false twists is 1650 T / M (twisting direction Z), and the processing speed is 50 m. / Min, 8% overfeed rate between the first delivery roller 15 and the second delivery roller 17 The angle .theta.B 40 degrees, as 60 degrees doubling angle .theta.C, were false twisting.
[0044]
As a result of observing the yarn form of the obtained processed yarn with an optical microscope, a single wound structure of each of the yarn B and the yarn C having the yarn A as a core yarn is formed, and the yarn D is intermittent. In particular, a triple wound structure was formed, and a structure wound around the outer periphery of the yarn A, the yarn B, and the yarn C was exhibited.
[0045]
Moreover, the obtained processed yarn has a Wooster spot of 11.0% and a bulk height of 2.63 cm. ^Three / G, bulky compression ratio of 32.2%, and it is possible to obtain a processed thread with a span tone that has natural spots, squeakiness and stiffness like a spun yarn composed of natural fibers, and has excellent convergence. It was.
[0046]
Furthermore, as a result of creating a knitted fabric (Tenji texture) using a 16G one-neck knitting machine and carrying out conventional scouring and dyeing, in addition to the span-like swelling and softness depending on the yarn form, the light and shade due to the dyeing characteristics of the constituent yarns As a result, a deep span-like appearance could be obtained.
[0047]
(Example 2)
Using false twisting machine (LS-6 manufactured by Mitsubishi Heavy Industries), nylon 66 multifilament 78 decitex 34 filament on yarn A, diacetate multifilament bright 167 decitex 39 filament on yarn B and yarn C, yarn Polyester high shrinkage multifilament 33 dtex 24 filament (boiling water shrinkage: 18%) is used as D, the overfeed rate of each of the yarn B and the yarn C with respect to the yarn A is 30%, and the yarn with respect to the yarn A The overfeed rate of D is 100%, the temperature of the first heater 13 is 170 ° C., the temperature of the second heater 16 is 200 ° C., the number of false twists is 1900 T / M (twisting direction Z), the processing speed is 50 m / min, The overfeed rate between the first delivery roller 15 and the second delivery roller 17 is 8%, and the combined yarn angle θB is 35. The doubling angle θC as 50 degrees, were false twisting.
[0048]
As a result of observing the yarn form of the obtained processed yarn with an optical microscope, the yarn B and the yarn C each form a single wound structure with the yarn A as a core yarn, and the yarn D is intermittently formed. While forming a triple wound structure, a structure wound around the outer periphery of the yarn A, the yarn B, and the yarn C was exhibited.
[0049]
Moreover, the obtained processed yarn has Worcester spots 12.4% and a bulk height of 2.50 cm. ^Three / G, bulky compression ratio of 30.5%, and it is possible to obtain a processed thread with a span tone that has natural spots, fluffiness and stiffness like a spun yarn composed of natural fibers, and has excellent convergence. It was.
[0050]
Further, a plain woven fabric (weft density of 13 / cm, warp density of 47 / cm (composed of polyester multifilament semidal 56 decitex 24 filaments)) obtained by using the processed yarn obtained was obtained. As a result of scouring and dyeing, a woven fabric having both natural spots, fuchsia and stiffness was obtained.
[0051]
(Comparative Example 1)
With a false twisting machine (LS-6 manufactured by Mitsubishi Heavy Industries, Ltd.), a group of core yarns composed of polyester normal pressure dyeable multifilament bright 84 dtex 48 filaments and triacetate multifilament bright 167 dtex 40 filaments, It is supplied to the false twisting region through a tensor, and triacetate multifilament bright 167 dtex 40 filaments are wound as a sheath yarn around the outer periphery of the core yarn group, followed by polyester high shrinkage multifilament 33 dtex False twisting was carried out while intermittently forming a triple winding using 24 filaments (boiling water shrinkage: 18%) as a pressing thread.
[0052]
The overfeed rate of the sheath yarn with respect to the core yarn group is 25%, the overfeed rate of the press thread with respect to the core yarn group is 80%, the first heater temperature is 170 ° C., and the second heater temperature is 200 ° C., false twist number 1650 T / M (twisting direction Z), processing speed 50 m / min, overfeed rate between the first and second delivery rollers 8%, the core yarn group The false twisting process was performed with the combined yarn angle between the sheath yarn and the sheath yarn set to 60 degrees.
[0053]
As a result of observing the shape of the obtained processed yarn with an optical microscope, the core yarn group has a twisted shape, and the sheath yarn is wound around the outer periphery of the core yarn group once. Furthermore, the pressed yarn is intermittently formed into a triple winding, and although the processed yarn has a strong stiffness, it has poor natural spots and fluffiness and is a slab design with a triple winding structure. Because of its prominent nature, it was a relatively rough one like a kite string.
[0054]
Here, the obtained processed yarn has 9.7% Wooster spot and a bulk height of 2.25 cm. ^Three / G, bulky compression ratio of 33.3%. Moreover, as a result of creating the same knitted fabric as Example 1 using this processed yarn and carrying out the usual scouring and dyeing, the slab is conspicuous and does not exceed the category of conventional knitted yarn-like knitted fabrics. It was a thing.
[0055]
(Comparative Example 2)
Yarn processing was performed using the manufacturing method described in JP-A-3-14642.
Polyester normal pressure dyeable multifilament bright 84 dtex 48 filaments as core yarn, triacetate multifilament bright 167 dtex 40 filament as first sheath yarn, and polyester high shrinkage multifilament 33 dtex 24 filament as second sheath yarn (boiling water shrinkage) Rate: 18%), the first sheath yarn is supplied to the core yarn at an overfeed rate of 25%, and the core yarn is wound in a single and alternating twist continuously, and the outside The second sheath yarn was fed around the substrate at an overfeed rate of 80% and continuously wound.
[0056]
The first heater temperature is 170 ° C., the second heater temperature is 200 ° C., the number of false twists is 1650 T / M (twisting direction Z), the processing speed is 50 m / min, the first delivery roller to the second delivery roller. False twisting was performed with an overfeed rate of 8%.
[0057]
As a result of observing the thread form of the obtained processed thread with an optical microscope, the entire thread exhibited a tight structure, and the visual thickness spots were substantially eliminated, resulting in a natural patchy feeling and a fluffy feeling. Some textures were scarce.
Here, the obtained processed yarn was 9.4% Wooster spots and a bulk height of 2.22 cm. ^Three / G, bulky compression rate of 26.7%. Further, a knitted fabric similar to that of Example 1 was prepared using this processed yarn, and as a result of carrying out conventional scouring and dyeing, the texture with natural spots and fluffiness was poor.
[0058]
From the above results, the present invention uses natural fibers such as spun yarns composed of natural fibers, using chemical fiber multifilaments with features such as good productivity, quality maintenance and ease of adding special functions. Spun-toned yarns that have speckled feeling, squeaky feeling, and firmness, and that are excellent in convergence, can be manufactured with high productivity, and woven and knitted fabrics containing the span-toned yarn are also subjected to conventional scouring and dyeing. It is a woven or knitted fabric that has both natural spots, fluffiness and stiffness, and has a high industrial contribution, and its significance is extremely large.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a typical embodiment of a method for producing a spanned yarn according to the present invention.
[Explanation of symbols]
A Yarn (core yarn)
B Yarn (single wound structure yarn)
C yarn (single wound structure yarn)
D Yarn (Triple wound structure yarn)
5 Magnet Tensor
6 Guide
7 Feed roller
8 Guide
9 Feed roller
10 Guide
11 Feed roller
12 Guide
13 First heater
14 False twisting unit
15 First Deliberry Roller
16 Second heater
17 Second Deli Berry Roller
18 Winder
θB Yarn angle of yarn B with respect to yarn A
θC Yarn angle of yarn C relative to yarn A

Claims (5)

A spanned yarn composed of four yarns A to D made of chemical fiber multifilament,
Yarn B and Yarn C each having single winding structure with Yarn A as the core yarn,
The yarn D is wound around the outer periphery of the yarn A, the yarn B and the yarn C while intermittently forming a triple winding structure.
Spun tone processed yarn characterized by that. The Worcester spot is 9% or more and 20% or less, the bulk height is 2.3 cm ³ / g or more and 3.0 cm ³ / g or less, and the bulky compressibility is 25% or more and 50% or less. Spanned yarn. In false twist processing to supply sheath yarn and press yarn excessively to the core yarn,
Supplying the yarn A to the false twisting region;
Winding the yarn B once against the yarn A,
Further, the yarn C is wound once around the outer periphery of the yarn A and the yarn B, and the yarn D is intermittently triple wound around the outer periphery of the yarn A, the yarn B, and the yarn C. A method for producing a spanned yarn comprising rotating the yarn. The spanned yarn according to claim 3, wherein a combined yarn angle θB of the yarn B with respect to the yarn A and a combined yarn angle θC of the yarn C with respect to the yarn A are 20 degrees or more and 80 degrees or less. Manufacturing method. A woven or knitted fabric comprising the spanned yarn according to claim 1 or 2.

Images