KR101727297B1 - Method for Manufacturing Circular Knit Using Slub Yarn - Google Patents

Abstract

The present invention relates to a method of manufacturing a circular knitted fabric using a slag yarn, which can increase the homogeneity of the slag yarn and lower the degree of variation of the fineness so that the knitted fabric can be knitted with the knitting needle of a thin stem, So that they can be expressed in the knitted fabric.
The method of manufacturing a circular knitted fabric according to the present invention is advantageous in that even if knitted with a hook having a large radius of curvature and a curved stem, the damage of the knitted fabric can be prevented even if the circular knitted fabric has high uniformity and small variation in fineness, And the density of the gauge of the knitting needle can be increased, so that a circular knitted fabric having a fine texture can be rapidly produced. Also, by minimizing the shrinkage of the yarn by minimizing the longitudinal shrinkage, the color and texture of the slub yarn contained in the yarn Can be expressed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a circular knitted fabric using slurry,

The present invention relates to a method of manufacturing a circular knitted fabric using a slag yarn, which can increase the homogeneity of the slag yarn and lower the degree of variation of the fineness so that the knitted fabric can be knitted with the knitting needle of a thin stem, So that they can be expressed in the knitted fabric.

Slub yarn is a kind of decorative yarn that causes intermittent appearance of bulky knots called slubs in the middle of a yarn. In general, in the spinning process, the feed rate of roving is increased and the draft is changed If the yarn is made thick and thin, it is given a certain twist, the thin part is given more twist, and the thick part is less twisted, so that the partially twisted sludge yarn can be produced.

The sludge yarn thus produced is made of a spun yarn of relatively fibrous structure, so that the untwisted portion of the yarn is thickened to maintain its original color, while the portion to which the twist is imparted is tapered, do.

Therefore, the fabric which is woven or knitted by using such a slush yarn has a natural color and a light color, so that the natural texture and beauty are expressed, and it has an advantage of having a stereoscopic appearance.

As a device for manufacturing a fabric with such a slip yarn, there is a circular knitting machine having an extremely high productivity and economy. The circular knitting machine has circular knitting needles arranged circularly along a circular body, A yarn feeding part for feeding the yarn to the knitting yarn with a proper tension and a yarn speed, a knitting part for knitting the knitting yarn while forming a loop using a knitting needle supplied from a yarn feeding part, a knitting yarn knitting part for knitting the knitting yarn, And a winding portion for holding.

However, since thick and thin portions are repeatedly formed in the slip yarn, the thick part of the slip yarn must pass through the hook of the knitting needle in order to form the loops in the knitting section, so that the hook must be enlarged, As a result, the knitted fabric density at the cylinder and the dial, that is, the gauge becomes small, so that the circular knitted fabric is elastically knitted.

In order to finely knit the circular knitted fabric made of slag yarn, the stitch of the knitting needle supporting the hook can be made thin by enlarging the hook of the knitting needle. In this case, since the thick fiber is supported by the thin staple of the knitting needle, In this state, the slip yarn in which the thick and thin portions are repeatedly formed passes discontinuously through the hook, causing a breakage or warping of the knitted fabric frequently, which makes continuous operation of the knitting machine difficult.

In order to solve the above problems, Korean Patent Registration No. 0929819 proposes a circular knitting machine having a high-density gauge and capable of forming a three-dimensional motif, and a knitting method using the same.

The circular knitting machine includes transfer needles accommodated in a cylinder, first and second knitting needles alternately disposed on a dial, and arranged such that the hook portions of the first and second knitting needles are placed on different planes on the same plane So that the knitting needles are arranged as closely as possible.

The circular knitting machine in which the needles are arranged has a relatively higher gauge density than that of the transfer needle and the knitted fabric using the first and second knitting needles when the needles have N gauge densities 2 x N gauge density, so that a relatively high gauge density can be realized, and therefore, it can be tightly knitted, so that a stable fabric structure and an improved texture can be obtained.

However, since the knitting needles are arranged on the same plane, the density of the gauge can not be increased due to the thickness of the needle stem. In order to increase the density of the gauge by making the stem of the needle thinner, Also suffers a structural problem of the above-described needle holding force.

Korean Patent Laid-Open Publication No. 2001-0049426 discloses a circular knitting machine for knitting a knitted fabric of high density and a knitting method thereof, wherein a nose transfer needle is arranged on the first needle plate and a nose transfer function is provided on the second needle plate And the loops of the first needle plate are transferred to a normal needle by using a nose transfer needle so that a high density knitted fabric can be knitted.

However, in the above-described knitting method, since a yarn loop is formed first and then it is required to be transferred to a normal needle twice as large as the knot using a nose transfer needle, the working time is prolonged and productivity is greatly reduced.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for allowing a circular knitted fabric to be knitted with a slag yarn to have a dense and dense structure,

In order to solve the above-mentioned problems, the present invention provides a method for producing a twisted yarn, comprising the steps of: Twisting at least two strands of the first composite twist yarn and twisting in a direction opposite to the twist direction of the first composite twist yarn to produce a second composite twist yarn; Disposing a needle on a dial bed or a cylinder bed of a circular knitting machine, the knitting needle having a hook having a curvature radius capable of capturing the secondary sum yarn and a stem having a small thickness capable of being arranged at a gauge density of 15 to 25 NPI; And knitting the secondary suture yarn using the knitting needle of the circular knitting machine. The present invention also provides a method of manufacturing a circular knitted fabric using the suture yarn.

In this case, the fineness of the slub yarn and the ordinary yarn is preferably 30 to 50 Nm, and the number of twists of the first twist yarn and the second twist twist yarn is preferably 300 to 500 TPM, It is preferable to open and set for 30 minutes.

The second joint yarn is a four yarn which is produced by combining two yarns of a T / C yarn mixed with a polyester fiber and a cotton yarn in a slack yarn and a left yarn, and then twisting the two yarns together, The first pair of paired yarns were produced by combining the first yarn and the second yarn with the left yarn of the ester yarn and the suture yarn to produce a second yarn pair by combining the metal yarn and the suture yarn with the left yarn, desirable.

The method of manufacturing a circular knitted fabric according to the present invention is advantageous in that even if knitted with a hook having a large radius of curvature and a curved stem, the damage of the knitted fabric can be prevented even if the circular knitted fabric has high uniformity and small variation in fineness, And the density of the gauge of the knitted fabric can be increased, so that a circular knitted fabric having a fine texture can be rapidly produced.

Also, by minimizing the shrinkage ratio of the yarn by minimizing the shrinkage ratio of the yarn, the color and texture of the slip yarn included in the yarn can be expressed in the circular knitted fabric.

Conventional sludge yarns are generally manufactured by a method of forming a sludge in a step of spinning short fibers, and in some cases, a two-ply thin yarn is used as a core yarn, and a sliver is intermittently supplied therebetween The sliver is also manufactured in such a way as to form a sludge.

However, the slop yarn manufactured by this method is liable to collapse the shape of the yarn as the slip is pushed through the hook of the yarn when passing through the hook of the yarn in the structure of the yarn, so that natural color expression and three- Repeated thick and thin portions pass through the hook, giving repeated impact and friction to the knitting needle, often causing damage to the knitting needle.

In order to compensate for these disadvantages, in the present invention, firstly, the slip yarn is fixed to the general yarn to fix the slip of the general yarn slip yarn so that the slip is not pushed during the knitting, and the impact and friction given to the knitting yarn are reduced, Thereby manufacturing a circular knitted fabric.

At first, a yarn slack yarn and at least one yarn yarn are twisted and twisted to produce a first yarn sum yarn, at least two yarns of the first yarn sum yarn are twined and twisted in a direction opposite to the twisting direction of the first yarn sum yarn To produce a second combined twist yarn.

For example, if the first summing twist is the left twist (Z twist), the second sum twist gives twist by coincidence (S twist), and if the first sum twist is coincident, the second twist gives twist to the left. The twisted yarns are twisted in different directions so that the percentage of twist shrinkage is reduced.

Spin factor represents the ratio of the thread length before the twist to the thread length after the twist, and the larger the twist ratio, the greater the stretchability of the thread.

In the yarn of the same thickness and twist number, the twist ratio is increased when the twist direction of the first and second twist yarns is the same, and the twist ratio is decreased when the twist direction is opposite. In the same twist number yarn, The larger the twist rate is, the larger the twist factor becomes.

In the present invention, since the twist directions of the first and second composite twist yarns are opposite to each other, the twist ratio is reduced and the stretchability is reduced. As a result, the uniformity of the secondary twist twist is excellent and the variation degree of the fineness is reduced.

As the slack yarn is combined with the general yarn, the sludge of the slack yarn is fixed in the slack yarn by the twist structure with the yarn yarn, and the yarn becomes uniform by the twist so that the cross section becomes close to the circular shape, The hook can be naturally passed through at a minimum size, so that the size of the hook is minimized and friction and noise are reduced.

In addition, it is inevitable that the color tone and the three-dimensional texture of the slip yarn are lowered by the joint, but by minimizing the contraction ratio of the yarn yarns and minimizing the longitudinal shrinkage of the yarns, the color and texture of the slip yarn Can be expressed.

It is preferable to reduce the fineness of the slub yarn and the ordinary yarn or to reduce the number of twists of the first sum yarn yarn and the second sum yarn as a method of lowering the span ratio of the combined yarn more. It is more preferable to first and second joints with 300 to 500 twist per meter (TPM).

The secondary joint squeezed as described above exhibits a small contraction ratio of about 0.5 to 3.0%, depending on the kind of the material of the slip yarn and the general yarn, so that the color and texture of the slip yarn are maximally expressed while the slip yarn is fixed by the ordinary yarn .

However, when the number of twists of the twisted yarn is reduced, the twisted state may partially collapse due to the property of returning to the original state without being twisted in the twisted state, which may cause unevenness of the thickness of the secondary twisted yarn.

In order to prevent this, it is desirable to temporarily remove the force to return the twist to the original state. To this end, it is preferable that the secondary twist yarn is thermally set at a low temperature of 100 ° C or less for 10 to 30 minutes, And is fixed at a low temperature as described above so that the fastened state is temporarily held, and then the fastened state is gradually disappeared.

By the above-mentioned heat fixation, it is possible to maintain the twist state in the knitting process and to knit with the secondary sum twist yarn of uniform thickness. Since the low temperature fixing is low in the fixed holding force, the twist is loosened with time, Since the effect of heat fixation is lost by water during washing or dyeing, it is possible to recover the inherent flexibility, stretchability and shatterability of the knitted fabric.

The general yarn may be ordinary natural fiber, chemical fiber, inorganic fiber, or metal fiber other than a special type of fiber such as a slack yarn, and may be a yarn combining a single yarn or a yarn of two or more yarns, The tea buds may be of the same kind or of different kinds.

For example, a T / C (polyester / cotton) plain yarn mixed with a polyester fiber and a cotton fiber is combined with a slip yarn and a left yarn to produce 2 yarns (first yarn sum yarn) 4 pairs of yarns (secondary twist yarns), or two pairs of yarns (first twist yarn) combined with a polyester yarn yarn and a suture yarn as the left margin, and 2 yarns (first yarn sum yarn) ) Can be accidentally combined to produce four yarns (secondary yarn twist yarns). In addition, the type of yarn can be freely selected depending on the use of the circular knitting yarn.

The circular knitting machine for manufacturing the circular knitted fabric is roughly divided into a feeding part for supplying yarn, a knitting machine for knitting a circular knitted fabric with the supplied yarn, And the knitting needle arranged circularly along the base body is knitted by the yarn fed from the yarn feeding portion.

The yarn supplied to the knitting needles has a large yarn size and a large yarn size, so that the hook of the knitting needle through which the yarn passes is also required to have a large radius of curvature, so that the yarn is caught by the hook and the stem of the knitting needles supporting the yarn becomes thick. The gauge, which is an array density, becomes smaller, and the circular knitted fabric is elastically knitted.

In the present invention, the radius of the hook curvature of the knitting needle is made large so that the thick yarn can be caught by the hook while the thickness of the stem is made narrow to obtain a knitted fabric in which thick yarns are closely knit. Since the yarn forms a circular cross section and the difference between the thick and thin portions becomes small, the radius of curvature of the hook can be minimized, and the force applied to the hook is minimized and the force transmitted to the stem through the hook is also small, It is possible to sufficiently support the hook without bending or breaking the stem.

The density of the gauge of the circular knitting machine is preferably appropriately selected according to the purpose of use. Normally, 15 to 40 NPI (needles per inch) circular knitting machines are used, and 15 gauge circular knitting machines may be used. However, Is made of either a dial bed or a cylinder bed and the other is arranged at 15 NPI or more to produce a circular knitted fabric having a fine texture.

However, in the present invention, by arranging the fine staples of the stems, it is possible to realize a high gauge density of 15 to 25 NPI, The loops of the yarn formed by the knitting needles are reduced, and the knitted fabric of the present invention can be compactly and densely realized, and the knitting operation can be performed at a high speed.

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

It is to be understood, however, that the invention is not to be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Will be apparent to those skilled in the art to which the present invention pertains.

≪ Example 1 >

Using a two-for-one twister, T / C plain yarn mixed with polyethylene terephthalate fiber and cotton fiber was combined with 300 TPM into a slack yarn made of black sludge and a left sided yarn, Two TPMs were combined with 300 TPM to produce 4 TPM of 30 Nm.

A hook having a large radius of curvature that can be knitted by the above four pliers, a dial bed of a circular knitting machine, and a knitting needle having a thin stem capable of being arranged at a density of 15 NPI gauge on a cylinder bed, .

The four plied yarns were fed to a hook of the cylinder knitting needle rotating at 10 rpm through a yarn guide of a circular knitting machine, and a loop was transferred by a hook of a dial knitting needle.

≪ Example 2 >

In Example 1, circular knitted fabrics were prepared in the same manner as in Example 1, except that the produced four yarns were heat-treated at 90 ° C for 25 minutes to be thermally fixed and then fed to a circular knitting machine.

≪ Example 3 >

Using a two-for-one twister, the polyethylene terephthalate black bond yarn and the black slip formed on the sliver yarn were squeezed together to form the first two pliers, and the metal yarn and the black sliver yarn were joined together to form the second 2 plied yarn, the first and second 2 plied yarns were randomly combined with each other at 500 TPM to produce a 4 ply yarn of 50 Nm in common number.

A hook having a large radius of curvature capable of being knitted by the above four pliers, a dial bed of a circular knitting machine, and a knitting needle having a small-thickness stem capable of being arranged at a gauge density of 18 NPI on a cylinder bed, .

The 4 plied yarn was fed to the hook of the cylinder knitting needle rotating at 12 rpm through a yarn guide of a circular knitting machine, and the loops were transferred by a hook of a dial knitting needle.

<Example 4>

In Example 3, circular knitted fabrics were prepared in the same manner as in Example 3, except that the prepared four yarns were heat-treated at 80 ° C for 15 minutes to be heat-set and then fed to a circular knitting machine.

&Lt; Comparative Example 1 &

In Example 1, two padding yarns were 300 TPM mated to the left to produce four padding, so that the twist direction of the 4 padding was oriented in the same direction as the 2 padding. To prepare a circular knitted fabric.

&Lt; Comparative Example 2 &

Polyethylene terephthalate The cotton sliver forms a sludge by intermittently supplying a cotton sliver while 300 TPMs are jointed by two strands of a polyethylene terephthalate black circle and 300 TPMs are stacked by coincidence with 2 strands of the above 2 ply So that a common thread of 30 Nm was produced

The prepared slub yarn was fed to the circular knitting machine of Example 1 to prepare a circular knitted fabric.

&Lt; Comparative Example 3 &

Hooks with a radius of curvature of a general size and knitting needles of a stem size were installed on the dial bed and the cylinder bed of the circular knitting machine and were arranged at a gauge density of 9 NPI.

The 4 ply of Example 1 was fed to a circular knitting machine equipped with a knitting needle of the above-mentioned standard rotating at 18 rpm to prepare a circular knitted fabric.

&Lt; Test Example 1 >

The uniformity, the degree of variation of the degree of fineness and the degree of flame retardation of the sum yarn (sutra) produced in Examples 1 to 4 and Comparative Examples 1 and 2 were measured and shown in the following Table 1, and the sum of Comparative Example 3 was the same as Example 1 .

(%) ^{Note 1)} Scale variation (CV%) ^{Note 2)} Spin factor (%) ^{Note 3)} Example 1 2.3 1.9 0.9 Example 2 0.7 Example 3 2.1 1.7 1.1 Example 4 0.8 Comparative Example 1 2.5 3.3 2.5 Comparative Example 2 8.8 14.5 1.3 Note 1) Evenness Tester 80-Type C, Keisokki, Japan, running speed 50 m / min, average 10 measurements
Note 2) The coefficient of variation, the percentage of the value obtained by dividing the standard deviation of the fineness by the mean value
Note 3) Sparking rate (%) = (length after coiling - original length) / original length × 100

As can be seen from Table 1, the uniformity and the degree of variation of the degree of uniformity are more excellent than those of Example 1 in which the sum yarn is thicker and the number of twists is small compared to Example 1 in which the sum yarn is thicker and the number of twists is larger than that of Example 4, 2 in the case of Comparative Example 1 in which the 4-ply was manufactured by combining the 2-ply in the left-hand side.

In other words, the homogeneity and the variation of the degree of fineness are affected by the fineness, the number of twists, and the number of strands, and there is a difference according to the twist direction. The degree of homogeneity and variation of the degree of fineness change according to the correlation of the fineness, It can be seen that, in the case of different twist directions with respect to each constituent yarn, the uniformity is better and the variation degree of the fineness is smaller than the twist direction.

The slip yarn of Comparative Example 2 is inferior in uniformity and fineness variation ratio to the combined yarn of the Example and Comparative Example 1, and it can be seen that the slub yarn is non-uniform in the cross-sectional direction and the longitudinal direction as compared with the combined yarn.

It can be seen that the twist ratio is smaller than that of Examples 1 and 3 in which the heat setting examples 2 and 4 are not fixed, and the fluctuation width of the fibers in the longitudinal direction is reduced by heat fixing, and the surface sliver is intermittently It can be seen that the formation of the sludge increases the fluctuation range of the fiber in the longitudinal direction from the result of the increase in the expansion ratio compared with that in Example 1. When the composite yarn and each constituent yarn are twisted in the same direction Example 1) It can be seen that the length of the fiber is greatly reduced.

As the uniformity, the variation of the degree of fineness and the coefficient of contraction are smaller, the fluctuation of the force applied to the hook of the needle by the variation of the tension at the time of knitting can be reduced, and the damage of the knitting needle is expected to be reduced.

&Lt; Test Example 2 > Measurement of the damage rate of the knitting needle

In the above Examples and Comparative Examples, the number of damage such as breakage or bending of the knitting needle after continuously operating the knitting machine for 3 days is counted, and it is shown in Table 2 below.

fracture Warp system Example 1 0 0 0 Example 2 0 0 0 Example 3 0 0 0 Example 4 0 0 0 Comparative Example 1 0 2 2 Comparative Example 2 3 11 14 Comparative Example 3 0 0 0

As shown in the above Table 2, in Comparative Example 3 using the knitted fabric of the embodiment according to the present invention and the knitted fabric of the general specification, no damage of the knitting needle occurred, but the yarn twist and the constituent yarns were twisted in the same direction, And Comparative Example 1 in which the sparkling ratio is large, a large number of knitting needles were damaged when two knitting needles were warped and a suture yarn of Comparative Example 2 was supplied to the knitting needles.

Therefore, in order to manufacture a circular knitted fabric using a slurry, it is necessary to increase the uniformity of the sliver yarn and the combined yarn summed with the ordinary yarn, and to reduce the fluctuation of the force acting on the knitting yarn, And the continuous operation of the circular knitting machine is enabled.

&Lt; Test Example 3 > Measurement of physical properties of circular knitted fabric

The compression rate, compression recovery rate, elongation percentage, elongation recovery rate, ventilation resistance and color expression of the circular knitted fabric prepared in the above examples and comparative examples were evaluated and measured repeatedly three times, and the average values thereof are shown in Table 3 below.

Compression ratio and compression recovery rate were measured in accordance with JIS-L-1018, and a sheet cut into a size of 2 x 2 cm was placed on a measuring table, and a force of 20 cN (centinewton) was applied to an area of 4 cm 2 The thickness A was measured, and then a load of 300 cN was applied to an area of 4 cm 2, and a thickness B after 1 minute was measured. Then, the load C was left for 1 minute and the thickness C was measured when a load of 20 cN was applied.

The above measurement results were substituted into the following equations to calculate the compression ratio and compression recovery rate.

Compression ratio (%) = (A-B) / A x 100

Compression recovery rate (%) = (CB) / (AB) x 100

The elongation and the elongation recovery rate were measured by cutting the circular knitted fabric to 2.5 × 15 cm and measuring with a constant speed tester (Tensilon, Toyo Baldwin Co., Japan) at a gripping length of 10 ㎝ and a stretching speed of 100% / min of 9.8 N / The elongated length (D, ㎝) was measured by applying a load, and the elongated length (E, ㎝) was measured after removing the load. The elongation and the elongation recovery rate were calculated by substituting the following equation.

Elongation (%) = (D-10) / 10 x 100

Renal recovery rate (%) = (DE) / D x 100

The ventilation resistance was measured using an air permeability tester (KES-F8-AP1, Kato Tech Co., Japan), and the color representation was visually observed to show the degree of natural pattern and texture with distinct colors.

Compressibility
(%) Compression recovery rate
(%) Elongation ^{Note 1 )}
(%) Renal recovery rate ^{Note 1 )}
(%) Ventilation resistance
(㎪) Color representation ^{Note 2 )} Example 1 56 89 70 87 0.52 ○ Example 2 51 92 67 90 0.55 ○ Example 3 62 85 77 85 0.47 ◎ Example 4 55 88 74 88 0.48 ◎ Comparative Example 1 48 94 57 93 0.61 × Comparative Example 2 67 83 63 91 0.41 ◎ Comparative Example 3 72 77 91 74 0.23 △ Note 1) Elongation and elongation recovery in the direction of weft
Note 2) ◎: Very good, ○: Excellent, △: Fair, ×: Not well distinguished

As a result of the above Table 3, the compressibility and elongation were the largest in the knitted fabric of Comparative Example 3 in which knitted fabrics of general specifications were arranged at a density of 9 NPI gauge, while compression recovery, elongation recovery and ventilation resistance were the smallest The density of the gauge of the knitted fabric is low, and the knitted fabric of the circular knitted fabric is considered to be knitted.

Comparative Example 2, which was knitted with slag yarn, showed a large compression ratio and elongation recovery ratio and a small compression recovery rate and elongation percentage as compared with the examples. The fiber slag was compressed well but the recovery after compression was slow and the slag inhibited the elongation of the circular knitted fabric It can be seen that when the stretching force is removed, it is quickly restored to its original state.

Comparative Example 1, in which the twist yarn and each constituent yarn were twisted in the same direction, showed a smaller compression ratio and elongation than those of the twisted yarns in different directions, and the compression recovery rate, elongation recovery rate, And it shows that compression and elongation do not occur well.

In the color representation, the circular knit fabrics of Examples 3 and 4 knitted with a polyethylene terephthalate black circle, a black knit yarn with a black luster yarn and a metal yarn, and Comparative Example 2 knitted with a slip yarn exhibited the best natural patterns and texture , The circular knitted fabrics of Examples 1 and 2, in which T / C plain yarn and black lint yarn were knitted together, were evaluated as excellent.

In Comparative Example 3, the color was sufficiently divided, but it was not enough to express natural texture and texture because a lot of voids were formed in the knitted fabric. When the twist direction of the composite yarn was the same as that of each component yarn as in Comparative Example 1, Were not clearly distinguished.

As described above, according to the embodiment of the present invention, it is possible to manufacture a circular knitted fabric having a finer texture than a circular knitted fabric knitted using only a suttle knot or a knitted fabric of a general standard, It is possible to express the color and texture of the slack yarn to some extent by minimizing the longitudinal shrinkage of the yarn by making the yarn yarn suitable for the required application and making the circular knitted fabric small, thereby increasing the uniformity of the thick yarn including the slack yarn By reducing the fluctuation of the fineness, the fluctuation of the force applied to the knitting needle is reduced, thereby preventing damage to the knitting needle and enabling continuous operation of the knitting machine.

Claims (5)

A step of producing a first sum yarn by twisting the slack yarn and one or more regular yarns and twisting;
Twisting at least two strands of the first composite twist yarn and twisting in a direction opposite to the twist direction of the first composite twist yarn to produce a second composite twist yarn;
Disposing a needle on a dial bed or a cylinder bed of a circular knitting machine, the knitting needle having a hook having a curvature radius capable of capturing the secondary sum yarn and a stem having a small thickness capable of being arranged at a gauge density of 15 to 25 NPI; And
And knitting the secondary squeeze yarn using the knitting needle of the circular knitting machine. The method according to claim 1,
Wherein the fineness of the slub yarn and the ordinary yarn is 30 to 50 Nm, and the twist number of the first combined twin yarn and the second twin twist yarn is 300 to 500 TPM. The method according to claim 1,
Wherein the secondary consolidated yarn is opened and fixed at a temperature of 100 DEG C or lower for 10 to 30 minutes. The method according to claim 1,
Wherein the second joint yarn is a 4-yarn yarn produced by combining two yarns of a T / C yarn mixed with a polyester fiber and a cotton yarn in a slip yarn and a left yarn and then randomly combining two yarns of the two yarns , And a method of manufacturing a circular knitted fabric using the slaked yarn. The method according to claim 1,
The second joint joint produces the first 2 joints by combining the polyester joint joint and the slush joints in the left-hand side, and the second joint and the second joint are manufactured by jointing the metal joint and the slush joint to the left joint, A method for manufacturing a circular knitted fabric using a suture yarn, the method comprising: