KR102440100B1 - Hybrid worsted spinning device and hybrid siro-spun yarn produced thereby - Google Patents

Abstract

The present invention relates to a manufacturing apparatus that can manufacture hybrid Sirospun yarns from at least two rovings supplied to a ring spinning machine. An apparatus for manufacturing hybrid worsted yarns according to the present invention, which is configured such that different line speeds are given to each of the wool rovings, can easily control a core portion and a sheath portion of the wool roving by means of the difference in line speeds, and can provide a composite yarn suitable for manufacturing fine spun yarns.

Description

Hybrid worsted spinning device and hybrid siro-spun yarn produced thereby

The present invention relates to a hybrid thyro spun spun yarn, and more specifically, a core-sheath-type structure manufactured by using a hybrid wasted spun yarn manufacturing apparatus to which a front roller having a step portion is applied in manufacturing a composite spun yarn using a thyro spun method. It relates to a hybrid thyrospun spun yarn having

Wool fiber has been widely used as a high-quality natural fiber with moisture absorption, flame retardancy, and antibacterial properties in its natural state. Since this is easy, it is known as a suitable material as a material for manufacturing a natural hybrid fiber.

Wool fiber consumption has decreased due to low productivity and cost problems compared to artificial fibers since the development of chemical fibers, but recently, as a natural fiber, the material characteristics that artificial fibers cannot provide and the strength as an eco-friendly material have been highlighted and are attracting attention again.

In general, wool spun yarn can be manufactured in Ring Spun, Open End Spun, Air Jet Spun, etc. depending on the type of spinning machine used for spinning. The spinning is the most widely known spinning method, and the strength of the spun yarn produced among the above spinning methods is the strongest, and has the advantage of being able to implement thin and soft characteristics.

Wool spun yarn usually uses two-ply-yarn, not single yarn. This is because the wool generated on the surface of the spun yarn is agglomerated or stuck to each other due to static electricity generated by friction during the weaving or weaving process. because it interferes with its functioning. The above problem causes frequent cutting between processes and acts as a factor hindering productivity improvement.

However, the method using two braids greatly delays the wool yarn production process, and there has been an effort to use the Siro-fil method in which filaments are braided into single yarns to solve this problem.

On the other hand, it is known that at least 30 wool fibers must be clustered to form a single yarn during the spinning of a worn spun yarn. If the number is less than 30, yarn breakage occurs due to insufficient number of staple fibers during the spinning process, making it impossible to manufacture spun yarn. For commercialization, 35 to 40 or more wool fibers must be clustered. Therefore, it is necessary to prepare a raw material having a finer fineness in order to manufacture the spun yarn.

In order to solve the above problems, research on hybrid spun yarns in which heterogeneous fibers are combined is being actively conducted.

The composite spun yarn may have three types of structures: a Jaspe type, a twin type, and a sheath-core type.

The Jaspe type is a composite spun yarn in which individual fibers are randomly arranged with each other, and mainly fibers of different colors are combined to express color or texture. However, there is a disadvantage that the improvement of physical properties cannot be derived because the cluster phase of each individual fiber is not clear.

The twin type is a composite spun yarn composed of two individual fibers twisted together, and has the advantage of providing a cool feel with less hair on the surface of the yarn and smoothness. In the case of excessively large size, an imbalance due to the difference in physical properties occurs at the intersection (Y-point) where one spun yarn is formed past the spinning machine front roller, and defective yarn is frequent due to snarl yarn, non-uniformity, and hair generation. happens to be

On the other hand, the sheath-core (Sheath-Core, core-sheath type) type is a composite spun yarn in which the position of individual fibers constituting the composite spun yarn is divided into core and sheath, and the position is controlled. Due to these structural features, it is easy to control the physical properties of the core yarn and the sheath yarn, and there is an advantage in that the density difference between the core yarn and the sheath yarn can be controlled in controlling the moisture movement, endothermic or exothermic characteristics. Therefore, there is an advantage in that it is possible to develop a spun yarn having excellent properties and feel while having a manufacturing cost competitiveness.

Republic of Korea Patent Registration No. 10-0876078

In order to solve this problem, it is an object of the present invention to increase the cohesion in the weaving phase of the core and sheath by manufacturing the core yarn located in the central part and the sheath yarn coated on the surface of the core yarn by the difference in linear speed, and The purpose of this is to improve the uniformity and fairness of the composite spun yarn, to provide a linear velocity difference to the wool roving by forming a step portion on the front roller that easily controls the core sheath structure, and to produce a wool spun yarn of three counts.

In addition, the technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. it could be

In order to achieve the above object, the hybrid wasted spinning yarn manufacturing apparatus of the present invention includes a back roller into which at least two or more wool rovings are input; an apron for controlling a draw ratio by giving a speed difference to each wool roving supplied from the back roller; a front roller for imparting a linear speed difference to each wool roving to which a speed difference is given through the apron; a yarn breakage detection device for detecting yarn breakage of a nip formed in the wool roving to which the linear velocity difference is applied through the front roller, and manufacturing the spun yarn from the wool roving; a bobbin tube in which the manufactured spun yarn is wound; a spindle connected to the bobbin tube to rotate the bobbin tube; and a traveler rotating adjacent to the bobbin tube and applying twist to the spun yarn. It is characterized in that it includes.

In addition, the front roller includes an upper roller and a lower roller spaced apart from the lower side of the upper roller by a predetermined distance, and the upper roller and the lower roller are formed to have different diameters by forming a stepped portion at the center in the longitudinal direction. can be a thing

In addition, the upper roller includes a first roller portion having a first diameter, and a second roller portion having a second diameter smaller than the first diameter, wherein the lower roller includes a third roller portion having a third diameter, and It may include a fourth roller having a smaller diameter than the third diameter.

In addition, the diameter ratio of the second roller part and the first roller part, and the diameter ratio of the fourth roller part and the third roller part may be 1: 1.2 to 1.5.

Also, the first roller part of the upper roller may face the fourth roller part of the lower roller, and the second roller part of the upper roller may face the third roller part of the lower roller.

Also, the sum of the first diameter of the first roller part and the fourth diameter of the fourth roller part may be the same as the sum of the second diameter of the second roller part and the third diameter of the third roller part.

In addition, an embodiment of the present invention provides a hybrid thyro spun yarn manufactured by the manufacturing method apparatus and spun by combining the at least two or more wool rovings.

Also, the types of wool rovings to be hybridized may be the same or different.

In addition, the hybrid thyros spun yarn manufactured by the hybrid wasting spinning device may have a count of 27 to 35 Nm measured by KS K ISO2060.

In addition, a draw ratio of the wool roving may be 17 to 25.

In addition, the wool roving may be derived from at least one group selected from the group consisting of wool, super wash wool, cashmere, and mohair.

The present invention having the above configuration as described above, since the core-sheath composite spun yarn is manufactured by giving a linear velocity difference to the wool roving, the composite spun yarn can be manufactured thinner, and the front to easily control the core-sheath structure A step portion is formed on the roller, thereby giving a difference in linear velocity to the wool roving, so that the wool spun yarn of three turns can be easily manufactured. can get

In addition, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

1 is a process diagram schematically showing an apparatus for manufacturing a hybrid spent spinning yarn according to the present invention.
2 is a cross-sectional photograph (300 times magnification) of the spun yarn for each draft manufactured using the hybrid spent spun yarn manufacturing apparatus according to the present invention, in the order of the upper left (a), (b), (c) and (d). , is a photograph of the spun yarns of Examples 3, 4, 5 and 6.
3 is a side photo (magnification 4 times) of the spun yarn for each draft manufactured using the hybrid spent spun yarn manufacturing apparatus according to the present invention, in the order of the upper left (a), (b), (c) and (d). , is a photograph of the spun yarns of Examples 3, 4, 5 and 6.

Since the present invention can have various changes and can have various embodiments, specific embodiments will be described in detail in the detailed description.

However, this is not intended to limit the specific embodiments of the present invention, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In the present invention, terms such as “comprising” or “having” are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, components, parts, or combinations thereof.

In the present invention, "count" refers to the thickness of the thread, and uses a constant-type counting system based on a unit mass of a certain material manufactured with a standard length thread. Specifically, Worsted or Woolen spun yarn is manufactured by 1 gram (g) of fiber material to 1 meter in length, 1/1 metric count (Nm), and 1 gram of fiber material weight It means that the length of 10 meters is made into 1/10 metric number (Nm). In addition, the British cotton yarn count (Ne), which indicates the thickness of cotton yarn, is 1/1' when the weight of a fiber material is 1 pound (lb) and 840 yd (yd), and 1 pound (lb) is 8400 yd. It means to make 1/10' of the length of .

In the present invention, core means a fiber located in the center of the core-sheath composite spun yarn.

In the present invention, the sheath yarn means a fiber coated on the surface of the core sheath type composite spun yarn.

In addition, in the present invention, "twisting number" means the number of twists per meter of yarn, specifically, spun yarn, and may be measured according to KS K 0418.

In addition, in the present invention, "yarn count" means that the test piece is left in a standard condition for at least 24 hours to reach moisture equilibrium, and it is calculated by measuring the length and weight (0.01 g) at this time, and the calculation formula is as follows.

N=n(100+R _a )/(100+R _s )

In this case, N is the common formula meter count (Nm), n is the apparent common formula meter count during measurement (Nm), R _a is the equilibrium moisture content (%), and R _s is the process moisture content (%). The measuring equipment was measured with a warp reel (To-155), and the measuring method was expressed as a metric count based on the KS K ISO2060 measuring method.

Also, in the present invention, "coefficient of variation in yarn count" is measured as the ratio (percentage) of the arithmetic mean to the standard deviation of the yarn count through yarn count measurement based on KS K ISO2060, a yarn count evaluation method. The coefficient of variation can be expressed in the following way.

CV=(S/X)×100(%)

In this case, CV is the coefficient of variation, S is the standard deviation of the measured data, and X is the average of the measured data.

<Hybrid wasted spinning yarn manufacturing device>

1 is a process diagram schematically showing an apparatus for manufacturing a hybrid spent spinning yarn according to the present invention. 2 is a cross-sectional photograph (300 times magnification) of the spun yarn for each draft manufactured using the hybrid spent spun yarn manufacturing apparatus according to the present invention, in the order of the upper left (a), (b), (c) and (d). , is a photograph of the spun yarns of Examples 3, 4, 5 and 6. 3 is a side photo (magnification 4 times) of the spun yarn for each draft manufactured using the hybrid spent spun yarn manufacturing apparatus according to the present invention, in the order of the upper left (a), (b), (c) and (d). , is a photograph of the spun yarns of Examples 3, 4, 5 and 6.

As shown in the drawings, the present invention provides an apron for controlling a draw ratio by giving a speed difference to a back roller into which at least two or more wool rovings are put, and each wool roving supplied from the back roller, and the speed through the apron. A front roller that gives a difference in linear velocity to each wool roving to which the difference is given, and a nip formed in the wool roving to which a difference in linear velocity is applied through the front roller is sensed, and a notification is detected when trimming, and a nip is formed, , a yarn cutting detection device for producing yarn by wool roving, a bobbin tube on which the produced yarn is wound, a spindle connected to the bobbin tube to rotate the bobbin tube, and rotating adjacent to the bobbin tube and twisting the yarn The application includes a traveler, and a square triangle is formed between the front roller and the trimming detection device.

Here, the hybrid wasted spinning yarn manufacturing apparatus uses a ring spinning machine.

The spinning machine used for ring spinning is called a ring spinning machine, and the ring spinning machine is composed of a draft part and a winding part.

As shown in FIG. 1 , the draft unit may include a back roller ( 403 ), an apron ( 404 ), and a front roller ( 405 ). A guide portion for controlling a passageway may be provided between each of the rollers 403 and 405 and the apron 404 .

After the roving 402 wound on the bobbin is put into the draft section through the back roller 403, the roving 402 passing through the back roller 403 passes through the apron 404 and the front roller 405 in order. do. In this process, the back roller 403, the apron 404, and the front roller 405 each have a separate rotation speed, and the roving 402 and the apron 404 pass between the back roller 403 and the apron 404. ) and the roving 402 passing through the front roller 405 have different speeds, and thus undergo a stretching process in which the roving 402 is stretched. The stretching process affects the uniformity and strength of the produced yarn.

The winding unit may include a spindle 407 , a break-out device (B.O.D, Break-Out Device; 406 ), a bobbin tube ( 408 ), and a traveler ( 409 ). The roving 402 passing through the front roller 405 of the draft part begins to be twisted by the bobbin tube 408 and the traveler 409 rotated by the spindle 407 . When the traveler 409 rotates around the bobbin tube 408 once, the spun yarn obtains one twist, and at this time, the number of twists applied to the yarn per unit length can be expressed as follows.

In addition, the front roller 405 includes an upper roller 405a and a lower roller 405b spaced apart from the upper roller 405a by a predetermined interval.

The upper roller 405a and the lower roller 405b may be formed to have different diameters by forming a stepped portion at the center in the longitudinal direction.

By forming a step portion in the longitudinal center, the front roller 405 can impart a linear velocity difference to the wool roving 402 .

When the linear velocity difference is given, the wool roving with a slow linear velocity is located at the core of the core yarn, and the wool roving with a high linear velocity is located at the beginning of the core yarn.

At this time, since the fibers of the core located in the center of the hybrid thyro spun yarn form a constant thickness, the number of bags is always constant. The fibers of the sheath surrounding the outer part have a structure that is changed by the difference in diameter of the front roller 405 .

In addition, the upper roller 405a includes a first roller part 405a1 having a first diameter d1, and a second roller part 405a2 having a second diameter d2 smaller than the first diameter d1. including, the lower roller 405b includes a third roller part 405b1 having a third diameter d3, and a fourth roller part having a fourth diameter d4 smaller than the third diameter d3 ( 405b2).

Through the above configuration, the first roller portion 405a1 and the second roller portion (405a1) are separated from the second roller portion ( 405a2) has a higher linear velocity. Accordingly, the wool roving passing through the first roller part 405a1 can be located in the sheath, and the wool roving passing through the second roller part 405a2 can be located in the deep part, and the ratio of the core/sheath part has the following relationship have

V ₁ =ωr ₁ =(2πr ₁ )T, V ₂ =ωr ₂ =(2πr ₂ )T

V ₁ =(r ₁ /r ₂ )×V ₂ , Sheath/Core = (V ₁ /V ₂ )×100(%)

At this time, ω is the angular velocity, V ₁ and V ₂ are the linear velocities of the first and second roller parts 405a1 and 405a2, and Sheath/Core (%) is the ratio of the sheath part and the deep part. Therefore, it is possible to adjust the ratio of the core sheath through the linear velocity ratio of each roller.

For example, as shown in FIG. 1 , the roving passing between the first roller part 405a1 and the fourth roller part 405b2 is a deep part, the second roller part 405a2 and the third roller part 405b1 . The roving passing through is located at the beginning.

In addition, the diameter ratio of the second roller part 405a2 and the first roller part 405a1 and the diameter ratio of the fourth roller part 405b2 and the third roller part 405b1 are 1: 1.2 to 1.5 days. can

If the diameter ratio is lower than 1:1.2, it is difficult to obtain a thin fiber for three-fold production, and when the diameter ratio is higher than 1:1.5, the sheath leaves the twisted area of the spun yarn due to an excessive draft ratio, which is present as a wool. As a result, the uniformity and physical properties of the yarn are reduced.

In addition, the first roller part 405a1 of the upper roller 405a faces the fourth roller part 405b2 of the lower roller 405b, and the second roller part 405a2 of the upper roller 405a is lower It may be opposite to the third roller part 405b1 of the roller 405b. When the first roller portion 405a1 and the fourth roller portion 405b2 have poor opposing properties, the draft of the wool roving may be poor, and the nip portion may not be formed.

In addition, the sum of the first diameter d1 of the first roller part 405a1 and the fourth diameter d4 of the fourth roller part 405b2 is the sum of the second diameter d2 of the second roller part 405a2 ) and the third diameter d3 of the third roller part 405b1 may be the same as the sum.

In addition, an embodiment of the present invention provides a hybrid thyros spun yarn manufactured by the hybrid wasted spinning yarn manufacturing apparatus and spun by combining the at least two or more wool rovings.

Also, the types of wool rovings to be hybridized may be the same or different. However, even if the type of the wool roving is different, it is not preferable when the difference in physical properties is large. When the difference in physical properties is excessively large, there is a problem in that defective yarns such as snarl yarn and hair generation are generated.

In addition, the hybrid thyros spun yarn manufactured by the hybrid wasted spinning yarn manufacturing apparatus is preferably manufactured between 1/27 and 1/35 Nm based on the number measured by the KS K ISO2060 method.

In addition, a draw ratio of the wool roving may be 17 to 25.

The roving 402 is introduced into the apron 404, so that the speed of the roving 402 before entering the apron 404 passes the apron 404 and the speed ratio of the roving 402 is 16 to 20. it is preferable

That is, the ratio of the speed of the apron 404 and the front roller 405 is preferably 1:17 to 25. When the ratio of the speed of the roving 402 before entering the apron 404 and the speed of the roving 402 after passing the apron 404 is lower than the range, the draw ratio of the roving 402 is lowered and a uniform composite It is difficult to obtain spun yarn.

When the ratio of the speed of the roving 402 before entering the apron 404 and the speed of the roving 402 after passing the apron 404 is greater than the range, excessive tension is added to the roving 402 and the single yarn 401 ) and the roving 402, the bonding force is lowered, and a slip phenomenon in which the superfine roving 402 slides on the surface of the single yarn 401 which is the main yarn may occur.

In addition, the wool roving may be derived from at least one group selected from the group consisting of wool, super wash wool, cashmere, and mohair.

Hereinafter, the present invention will be described in more detail based on the following Examples and Comparative Examples.

However, the following examples are only for illustrating the present invention, and the present invention is not limited by the following examples, and can be substituted and changed to other equivalent examples without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains.

Example 1. Preparation of wool roving

For the production of the wool roving for the production of the hybrid thyrospun yarn, two rovings were prepared as follows, respectively, for the production of the roving for spinning.

<Roving 1>

In the spinning gilling process using undyed wool fibers with an average fineness of 20.5㎛ and a fiber length of 68.4Hmm, mixing 1 time, gilling 3 times, combing at 100 wt% of wool (Combing) 1 time and Gilling (Gilling) 2 times were performed. In addition, in the drawing process, mixing (Super Mixer) 1 time, Gilling (Auto leveling Gill) 1 time, Gilling (High speed Gill) 1 time, Bi-coiler (Bi-coiler) 1 time, Reducer (Reducing Gill) 1 time A roving having a linear density of 0.349 g/m was manufactured through a total of 13 processes in which one time and one bobbiner were performed.

<Roving 2>

In the Gilling process using the same black wool fibers as in the roving 1, Mixer 1 time, Gilling 3 times, Combing 1 time, Gilling 2 times at a ratio of 100 wt% of wool was carried out. In addition, in the drawing process, mixing (Super Mixer) 1 time, Gilling (Auto leveling Gill) 1 time, Gilling (High speed Gill) 1 time, Bi-coiler 1 time, Reducer 1 time A roving having a linear density of 0.349 g/m was manufactured through a total of 13 processes in which one time and one bobbiner were performed.

Example 2. Establishment of control conditions for consumption spinning machine for manufacturing hybrid thyrospun yarn

The roving 1 and the roving 2 prepared in Example 1 were used to prepare a hybrid sirospun spun yarn having a core-sheath structure. An additional guide was installed to smoothly reach the back roller without overlapping the flow of roving on the creel of the ring spinning machine, and two types of roving were installed. And, by controlling the draft of the back roller and the front roller of the spinning machine at a ratio of 21.06 times to reduce the liner density of the roving, the linear density is 0.033 g/m, That is, a spun yarn of S/30 (Nm) was prepared.

Examples 3, 4, 5, 6. Preparation of hybrid thyrospun yarns

For the manufacture of the hybrid thyrospun spun yarn having a core sheath structure, the consumption spinning machine control conditions presented in Example 2 were set as shown in [Table 1]. At this time, the twist factor (α) of the yarn emitted from the spinning machine was equally applied to 110. In addition, the diameter ratios of the front rollers were set to 1, 1.086, 1.114, and 1.143, respectively, and these were made into Examples 3-6, respectively.

Example 3 Example 4 Example 5 Example 6 linear speed ratio One 1.086 1.114 1.143 Count (Nm) 30.17 31.41 31.81 31.79 Twists per meter (tpm) Z600 Z600 Z600 Z600 Loving Linear Density (g/m) 0.349 0.349 0.349 0.349 draw ratio 21.06 21.06 21.06 21.06 Beginning/Deep Ratio (%) 50.0/50.0 47.9/52.1 47.3/52.7 46.7/53.3

As shown in [Table 1], the thinnest fiber was obtained in Example 5 in which the linear velocity ratio was controlled to 1.114.

Cross-section and side photos of the prepared hybrid thyrospun yarn were taken and shown in FIGS. 2 and 3 . Figure 2 is a conventional thyro spun spun yarn (a) with no linear speed difference in the same operating conditions and roving supply in a ring spinning machine with a thyro spun device attached, a hybrid cyros in which a linear speed difference is generated by a ratio of 1.086. The cross-sectional shape of the fun spun yarn (b), the hybrid thyro spun spun yarn in which the linear velocity difference occurs as much as 1.114 ratio (c) and the hybrid thyros spun spun yarn (d) in which the linear velocity difference occurs by the 1.143 ratio is analyzed.

Although the core fibers of the conventional and hybrid thyrospun composite spun yarns are all the same, the fibers of the sheath surrounding the outer spun yarn are drafted more by the linear velocity ratio, and the number of cross-sectional fibers of the spun yarn is gradually reduced. As a result, it was confirmed that the thickness of the yarn became thinner and the number of cross-sections of fibers in the outer part was gradually reduced. In addition, it was confirmed that the length of the fibers located at the sheath centering on the core was increased by the draft ratio, so that the tension between the yarns was reduced in the roving state, so that the fibers were disposed at the outer portion of the hybrid thyro spun yarn.

Figure 3 is a conventional thyro spun spun yarn (a) with no linear speed difference in the same operating condition and roving supply in a ring spinning machine with a thyro spun device attached, a hybrid cyros in which a linear speed difference is generated by a ratio of 1.086 The side shape of the fun spun yarn (b), the hybrid thyro spun spun yarn in which the linear velocity difference occurs by a ratio of 1.114 (c) and the hybrid thyros spun spun yarn (d) in which the linear velocity difference occurs by the 1.143 ratio is analyzed. In the case of the conventional thyro spun spun yarn, (a) twin spun yarns were formed in which black fibers and white fibers were twisted in the same ratio at 1:1. In the case of the hybrid thyro spun yarn, it was observed that the white fibers of the sheath formed a wrapping structure around the periphery of the yarn with the black fibers of the core as the center. In addition, it was observed that as the linear velocity difference increased, the yarn was drafted as much as the linear velocity ratio of the sheath, and the number of cross-sectional fibers of the spun yarn gradually decreased, and as a result, the thickness of the yarn became thinner. In addition, it was confirmed that, as the linear velocity difference increased, the fibers of the sheath were separated from the twisted yarn area and remained in the form of hair.

As mentioned above, although the present invention has been shown and described in relation to specific embodiments, it is common knowledge in the art that various modifications and changes are possible without departing from the spirit and scope of the invention as set forth in the appended claims. Anyone who has it will know it easily.

402 : wool roving
403: back roller
404 : Apron
405: front roller
405a: upper roller
405b: lower roller
405a1: first roller part
405a2: second roller part
405b1: third roller part
405b2: fourth roller unit
406: trimming detection device
407 : Spindle
408: bobbin tube
409: Traveler.

Claims (10)

a back roller that feeds two wool rovings into the spinning machine;
an apron to control the draw ratio by imparting a speed difference to the wool roving;
a front roller imparting a linear velocity difference to the two wool rovings to which the velocity difference is imparted;
a trimming detection device for forming a nip, detecting the trimming of the nip formed in the wool roving to which the linear velocity difference is given, and giving a notification, and manufacturing the spun yarn with the wool roving;
a bobbin tube in which the manufactured spun yarn is wound;
a spindle for applying rotation to the bobbin tube; and
a traveler rotating around the bobbin tube and applying a twist;
including,
The front roller includes an upper roller and a lower roller spaced apart from the upper roller by a predetermined interval, and the upper roller and the lower roller are formed to have different diameters by forming a stepped portion at the center in the longitudinal direction,
The upper roller includes a first roller portion having a first diameter d1 and a second roller portion having a second diameter d2 smaller than the first diameter, and the lower roller has a third diameter d3. a third roller part having a third roller part, and a fourth roller part having a fourth diameter (d4) smaller than the third diameter;
A hybrid consumable spinning and spinning apparatus, characterized in that the diameter ratio of the second roller part and the first roller part, and the diameter ratio of the fourth roller part and the third roller part is 1: 1.2 to 1.5.
delete delete delete According to claim 1,
The first roller part of the upper roller faces the fourth roller part of the lower roller, and the second roller part of the upper roller faces the third roller part of the lower roller.
6. The method of claim 5,
The sum of the first diameter d1 of the first roller part and the fourth diameter d4 of the fourth roller part is the sum of the second diameter d2 of the second roller part and the third diameter d3 of the third roller part Hybrid wasting-spinning device, characterized in that equal to the sum.
In the hybrid thyrospun yarn produced by the hybrid wasting-spinning device of claim 1,
The type of wool roving to be hybridized is the same or different hybrid thyrospun yarns.
8. The method of claim 7,
A hybrid thyrospun yarn having a count of 27 to 35 Nm as measured by KS K ISO2060.
8. The method of claim 7,
A hybrid thyrospun yarn having a draw ratio of 17 to 25 of the wool roving.
8. The method of claim 7,
The wool roving is a hybrid thyros spun yarn, characterized in that at least one selected from the group consisting of wool, cashmere, and mohair.

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