KR100832392B1 - Process of producing high stretch complex sirofil yarn containing polyester filament and natural fiber - Google Patents

Abstract

A method for producing a complex spun yarn is provided to give uniform tension to an elastic crimp yarn while the crimp yarn is supplied, thereby preventing the spun yarn from being snarled. A high-stretch type complex spun yarn is prepared by supplying a polytrimethyleneterephthalate/polyethyleneterephthalate filament(11) to a front roller(30) through a tension control and guide roller unit, supplying a natural fiber sliver(10) or a natural fiber sliver containing different single fibers to the front roller through a draft roller unit(40) of a spinning machine, and performing a sirofil spinning process so that the complex spun yarn has a twist coefficient of 110-180. Further, the tension control and guide roller unit contains a pair of rollers, a first yarn guide and a second yarn guide.

Description

Process of Producing High Stretch Complex Sirofil Yarn Containing Polyester Filament And Natural Fiber}

1 is a schematic view of a spinning machine used in the production method of the high-stretch mixed yarn of the present invention.

2 is an enlarged view of the tension adjusting guide roller portion.

3 is a diagram showing an apostle of the spinning method of the present invention.

Figure 4 is a micrograph of the cross section of the mixed spun yarn of Example 1 of the present invention.

5 is a photograph of the appearance of the mixed spun yarn of Example 1 of the present invention.

※ Explanation of code for main part of drawing

10: natural fiber sliver or natural fiber sliver containing heterogeneous short fibers

11: polytrimethylene terephthalate / polyethylene terephthalate filament

20: tension control guide roller portion 30: front roller

40: draft controller part of the spinning machine

210: upper roller of the tension control guide roller portion

220: first guide 230: second guide

240: lower roller

The present invention is a high-strength mixed spun yarn that contains elastic latent livestock yarn by applying the existing cyclofill process, but does not generate a snare when the yarn is supplied, and has excellent uniformity as well as elasticity. It relates to a manufacturing method.

 Recently, the developmental tendency of natural fiber materials including wool is used to make excellent fibers by compensating each other's shortcomings by combining with fibers of different properties, and currently using the sirofil and sirospun spinning methods. Many products have been developed to compensate for each other's shortcomings.

For example, in the case of wool compounding, it is divided into the composite between short fibers and the composite between short fibers and long fibers. First, the composite between short fibers typically shows uniform blending in the case of fiber blends. It is a difficult situation to manufacture the composite yarn which shows a structure. Most of the consumable room is being mixed with slivers. In addition, according to the recent demands of various consumer short-length composite material by the short fiber and long fiber, the development of technology for this is actively made.

 Representative examples of short and long composite materials include core spun yarn and cyrofill. In the case of core spun yarn, filament yarn is located at the core and wool is located at the beginning, and it is possible to develop products that express strong and soft touch. In addition, there is a problem in that it is difficult to apply the warp, as well as a weak composition.

 On the other hand, in the case of cyrofill, it is a square twisted yarn form in which the gap between wool and filament is maintained during the process. Like the core spun yarn, the appearance of the yarn is smooth and excellent in elongation, and the filament component tends to penetrate into the yarn. It has a soft feel and soft draping close to the wool, excellent breathability and drape, and is particularly suitable for summer materials because of its excellent refreshing feel and light weight. In particular, the Cyclofil yarn is made of a combination of polyester filament yarn and wool, which adds excellent hygroscopicity and warmth of wool, and excellent strength, durability, and ease of handling of polyester. It is changing greatly by consumption pattern, and it is flowing toward the compounding trend that emphasizes practical characteristics and sensitivity.

The cyclofil spinning method has been developed by applying in the cyclospun spinning method is a spinning method for producing a composite wool yarn composed of a high mixing ratio of more than 90% wool. It is a fiber with new function added by covalent fiber used in less than 10% while having the structure, performance and characteristics of the cyclospun yarn.

 This is a method of producing a single yarn capable of weaving without joining and ancillary processes with a conventional ring spinning machine, in which secondary component yarns are bonded to strands of strands, which are ordinary single yarns or continuous filament yarns. Therefore, it is possible to use a variety of materials, mainly using three times the number of nylon, polyester filament has the advantage of maximizing the characteristics of wool and the properties of the secondary component yarn.

 The Cyrofill can also be used for ultra-fine fine yarn 1/80 Nm (W / N = 90/10), which is equivalent to 2/160 Nm, which is not possible with conventional worsted yarns. Can be. In the conventional sirofil spinning method, when PET filament yarn is supplied to wool roving yarn to manufacture a composite yarn, the PET yarn has a smooth surface, so there is no great difficulty in the process because it is easy to be unwound by its own weight during feeding.

In recent years, however, development has been attempted to meet the demand to give elasticity and linen effect to fabrics for the development of differentiated and advanced products for spring and summer. However, in order to give elasticity, it is necessary to use elastic materials. In Korean Patent No. 10-0457055, a composite yarn was manufactured by training a sliver including polytrimethylene terephthalate multifilament and wool fibers. In the case of the patent, because the polytrimethylene terephthalate filament is used as a screening, there is a concern that a tension occurs when the yarn is supplied, and a snare is generated, resulting in problems such as occurrence of wool and uniformity, and excessive amount of polytrimethylene terephthalate filament. Due to elongation, the polytrimethylene terephthalate filament is visible to the outside, resulting in uneven dyeing problems.

Therefore, in the present invention, by applying the existing sirofil process, while supplying the sliver containing the natural fiber and the elastic polytrimethylene terephthalate / polyethylene terephthalate filament, the generation of the yarn does not occur at the time of yarn supply, less occurrence of the moor, homogeneous agent It is a technical object of the present invention to provide a method for producing a highly stretchable mixed spun yarn containing polyester filament and natural fibers that are excellent in elasticity and excellent in dyeing and form stability.

Therefore, according to the present invention, the polytrimethylene terephthalate / polyethylene terephthalate filament is separately supplied to the front roller via the tension control guide roller portion, and the natural fiber sliver or natural fiber sliver containing different types of short fibers is drafted in the spinning machine. Provided is a method of producing a high-strength mixed spun yarn containing polyester filament and natural fibers, characterized in that it is produced by the pen-spinning method to be fed through the roller unit 110 to 180.

Hereinafter, the present invention will be described in more detail.

The present invention provides a sliver containing natural fibers by applying an existing sirofil process, and provides a stretchable yarn for additional stretch while providing tension evenly to the yarn while providing high stretchability so as not to generate a sharpness. It relates to a mixed yarn.

The high stretch mixed spun yarn of the present invention supplies the polytrimethylene terephthalate / polyethylene terephthalate filament 11 to the front roller 30 separately, and contains a natural fiber sliver or a natural fiber sliver containing different types of short fibers ( 10) is supplied to the draft controller part 40 of a spinning machine, and manufactured by the penostatic spin method.

The polytrimethylene terephthalate / polyethylene terephthalate filament is a blend of polytrimethylene terephthalate and polyethylene terephthalate 15 to 30% by weight of the filament having excellent latent crimping ability of 1-7 denier spun yarn spun together It is preferable to use for the manufacture of the high stretch mixed yarn of the present invention. If it is less than 15% by weight, the elasticity is insufficient, and if it exceeds 30% by weight, uneven dyeing may occur due to exposure of the polytrimethylene terephthalate / polyethylene terephthalate filament. The polytrimethylene terephthalate / polyethylene terephthalate filament as shown in Figure 1 through the tension roller guide roller portion formed separately from the draft roller portion of the spinning machine front roller of the draft controller unit 40 of the spinning machine Supply to (30).

The tension control guide roller part includes a pair of rollers, a first guide and a second guide, and is preferably formed independently of the draft roller part of the spinning machine. The polytree is supplied through the first guide 220. The methylene terephthalate / polyethylene terephthalate filament 11 is wound around the upper roller 210 and the second guide 230 of the tension control guide roller once and then passed through the lower roller 240 to twist the original coil type. By controlling the tension of the polytrimethylene terephthalate / polyethylene terephthalate filament having a uniform to prevent the phenomena. D / R ratio of the tension control guide roller portion is preferably 1.05 ~ 1.1.

In the present invention, the polytrimethylene terephthalate / polyethylene terephthalate filament passed through the tension control guide roller portion is supplied to the front roller of the draft controller portion of the spinning machine, and natural fiber sliver or natural fiber sliver containing heterogeneous short fibers The high-strength mixed spun yarn is manufactured by the pen stroke method by supplying through the draft roller part of the spinning machine so that the linkage is 110 to 180. If the number of joints is less than 110, elongation control is difficult, and polytrimethylene terephthalate / polyethylene terephthalate filaments are exposed to the outside, which may result in dyeing unevenness. There is this.

In the natural fiber sliver containing the different types of short fibers, the different types of short fibers are preferably used in general polyester short fibers or hetero sectional polyester short fibers, when mixing hetero sectional polyester short fibers. The touch is improved, and the sweat-absorbing quick drying property can be given. The natural fiber sliver may be any one of cotton fiber, wool fiber or hemp fiber.

Cyclofiltrating method used in the present invention was developed by applying in the cyclospun spinning method to produce a single yarn with a conventional ring spinning machine without coalescing and ancillary processes, and to bind the secondary component yarns to one strand of strand. Primary component yarns are ordinary single yarn or continuous filament yarn. Therefore, it is possible to use a variety of materials, mainly by mixing three times the number of nylon, polyester filament with natural fibers to maximize the unique properties of natural fibers.

Figure 3 shows the yarns of the process for producing the cyclofiled yarn of the present invention. The least occurrence occurs when the interval between the filament yarn and the roving yarn is maintained at 10 mm. If the width is narrowed, the filament enters into the roving, which causes a decrease in elongation and badness. In addition, the distance in the "V" zone must be maintained uniform for each pyramid.

When wool is used as a raw material in the cyclofil spinning process of the present invention, it is roughly divided into a hair growth, an anterior and a square process. The following is a general description of each process.

The zipping process is a preparation process for the forward process, mixing, doubling, gilling, defelting, and drafting a dyed wool top and a polyester top or a white top and a polyester top. Combing is the process of producing a clean, uniform white top.

 During the zipping process, an emulsion is applied to prevent accidents and defects caused by static electricity generated in the spinning process. By emulsifying, it prevents static electricity, prevents fiber cutting, facilitates drafting, and suppresses the generation of plies to prevent cutting in the square.

The forward process is a process of manufacturing roving, an intermediate product for making single yarn, and makes a top sliver of 0.2 ~ 0.5g / m into a thick sliver of more than 20g / m. It is a process.

 In the process of tapering from the top to the sliver, doubling, drafting, and gilling are used to create a certain thickness required for roving. At this time, proper machine arrangement is required according to the thickness of the sliver. Optimal machine placement is a major factor in fabric quality and can increase productivity at the same time, requiring careful inventory of the benefits.

The spinning process is the last step of the spinning process, drafting the roving to the desired thickness to make the required thickness, and at the same time, give the proper twist to give strength to the discharged yarn, and release it to the bobbin and wind it into a certain shape. , Combustible and wound process. The spinning process can be carried out with a general ring spinning machine, in which the burning and winding mechanism of the ring spinning machine simultaneously performs the burning and winding in a spindle-ring-traveller manner.

According to the present invention, a polyester comprising a natural fiber or a short fiber of heterogeneous natural fiber and a polytrimethylene terephthalate / polyethylene terephthalate filament having an elongation of 15 to 28% and a linkage of 110 to 180 A high stretch mixed yarn containing filaments and natural fibers is provided.

The mixed spun yarn has a good elongation, and the number of linkages is appropriate so that no dyeing unevenness occurs during dyeing, and when the fabric is manufactured, the shape stability is excellent in the width direction of the fabric.

The following examples are given as non-limiting examples of the manufacturing method of the high-stretch mixed yarn of the present invention.

Example 1

The polytrimethylene terephthalate / polyethylene terephthalate filament (50/24, Hubis acid) is wound around the upper roller and the second guide of the tension control guide roller part once so that the D / R ratio is 1.05, and then passed through the lower roller. Feeding the front roller of the draft roller section of the feeder and feeding the blended wool and polyester through the draft roller section of the spinning machine, wool: 38%, polyester: 33%, polytrimethylene terephthalate / polyethylene terephthalate filament: A high stretchable mixed spun yarn of 53 denier was produced by the Cyclophyll method using a linkage number 116 at a rate of 29%.

Physical properties such as tensile strength and shrinkage percentage of the spun yarn prepared by the above example were analyzed based on the experimental standard as shown in Table 1.

Experiment item Experimental Standard  Intermarriage rate  KS K0210 Dissolution Method  Signed Strength  KS K0409 Foreign Law  Leveling system  KSK 0467  Number of cows  KSK 0406 B method

Properties Example 1 Linkage 116 Tensile strength (gf) 308.8 Elongation (%) 19.11 Killer system (U%) 11.30 Number of cows (/ 10m) 68

Therefore, the present invention compensates for the shortcomings of the yarns produced by the existing sirofil process, while providing elastic latent livestock yarns, but does not generate a squeeze when the yarns are supplied. It maintains higher strength and excellent elasticity than the yarns produced in the peeling process, and can provide mixed spun yarns that do not cause dyeing unevenness during dyeing. It is excellent in shape stability in the width direction of the fabric, and has a merit that it can be used as an optimal material for men and women's suits because of its light weight due to the thin fabric thickness.

Claims (7)

The polytrimethylene terephthalate / polyethylene terephthalate filament is separately supplied to the front roller via the tension guide roller unit, and the natural fiber sliver or natural fiber sliver containing different types of short fibers is supplied through the draft roller unit of the spinning machine. A method of producing a high-stretch mixed yarn containing polyester filament and natural fiber, characterized in that produced by the interfiling method so that the linkage number 110 ~ 180. The method according to claim 1, wherein the tension guide roller portion comprises a pair of rollers, the first guide and the second guide and the polyester filament and natural fiber, characterized in that formed independently of the draft roller portion of the spinning machine Method for producing a high stretch mixed yarn containing. 3. The polyester according to claim 2, wherein the tension control guide roller portion is made to pass through the lower roller after the supplied polytrimethylene terephthalate / polyethylene terephthalate filament is wound around the upper roller and the second guide once. A method of manufacturing a high stretch mixed yarn containing filaments and natural fibers. The method according to claim 3, wherein the tension control guide roller portion has a D / R ratio of 1.05 to 1.1. The method of claim 1, wherein the polytrimethylene terephthalate / polyethylene terephthalate filament is a filament of 1 to 7 denier filaments spun together and blended polytrimethylene terephthalate and polyethylene terephthalate is 15 to 30% by weight compared to the total mixed spun yarn A method for producing a high stretch mixed yarn containing polyester filament and natural fibers, characterized in that%. The method of claim 1, wherein the different types of short fibers in the natural fiber sliver containing the different types of short fibers are regular polyester short fibers or hetero-cross-section polyester short fibers, natural fiber sliver is cotton fiber, wool fiber or hemp fiber Method for producing a high stretch mixed yarn containing polyester filament and natural fibers, characterized in that any one of. Polyester filament and natural fiber, consisting of natural fiber or polytrimethylene terephthalate / polyethylene terephthalate filament containing natural fiber or heterogeneous short fiber, elongation 15 ~ 28%, linkage 110 ~ 180 High stretch mixed yarn containing a.

Images