KR20160101711A - A Mixed Textured Yarn And A Method For Preparing The Same - Google Patents

Abstract

Provided is a complex false-twisted yarn, comprising at least two types of crimped yarns, wherein at least two crimped yarns are tanged and mixed with each other. Provided is a woven product, which is a woven product woven by having the complex false-twisted yarn as a weft and a warp. A partial crimped yarn is removed by a burn-out process.

Description

Technical Field [0001] The present invention relates to a composite false yarn and a method for manufacturing the same,

The present invention relates to a composite false-twist yarn having a texture such as natural fibers while maintaining the inherent physical properties of the filament yarn, and a crimping effect and a woven fabric in which the steric effect is maintained.

Generally, a crimp effect is imparted to a flat synthetic filament yarn in order to impart physical properties and appearance such as heat insulation suitable as a clothes fabric. One of the methods for imparting such a crimp effect is generally a pre-twist process. Such a twisting process is evaluated as useful because of its high yarn speed and high productivity.

However, in the conventional tantalum process, there are many practical problems when the composite false-twist yarns are produced by compounding two or more kinds of filament yarns having different physical properties. For example, there is a problem that the filament yarns are excessively twisted according to the roughness difference of the respective filament yarns, and the filament yarns are broken due to the difference in diameter or tensile strength of each filament yarn, It is not easy to realize a desired texture when weaving is performed due to an excessive difference in the clipping rate of the housing, etc. Therefore, there has been a problem in that the kinds of the filament yarn or the like to be subjected to the conventional composite false twisting are extremely limited, There were various inefficiencies in the process.

Even when weaving using the conventional composite false-weft yarn, it is impossible to manufacture a woven fabric due to the physical limitations of the composite false-twist yarn, or it is difficult to realize the desired texture and two-tone effect through the burn-out process. Furthermore, it was even more difficult to artificially form NEP and the like to give a feeling of natural fibers to a conventional composite false-twist yarn.

Therefore, in order to produce a woven material having desired texture and color, it is required to prepare a superior composite false-twist yarn, so that it is required to develop a technology capable of imparting excellent physical properties to a composite false-twist yarn while maintaining high productivity of the twist- .

Korean Patent Publication No. 2001-0049312 (published on June 15, 2011) Korean Patent Publication No. 2000-0041156 (published on July 15, 2010)

SUMMARY OF THE INVENTION A first technical problem to be solved by the present invention is to provide a composite false twist yarn having a good crimp ratio and a texture similar to that of natural fibers by a composite twisted process.

A second technical problem to be solved by the present invention relates to a woven fabric to which a texture and a three-tone effect are imparted by a burn-out process.

Furthermore, a third technical problem to be solved by the present invention is to provide a method for manufacturing the composite false warp yarn and the woven fabric.

In order to solve the above problems, according to an embodiment of the present invention, at least one of the two or more kinds of winding yarns includes a NEP (NEP) And the neps are formed by being agitated and overlapped one or more times in the forward and backward directions along the longitudinal direction of the yarn. According to another embodiment of the present invention, a warp yarn is obtained by weaving warp yarns and warp yarns including two or more warp yarns interwoven with each other, wherein at least one warp yarn among the two or more warp yarns comprises a NEP , Said at least two types of winding yarns comprising at least one burn-out winding barrel, said burn-out winding barrel originating from viscose rayon filament yarn, said woven fabric having a burn- And a burr containing a burn-out remover, a melt, or a carbide according to the process.

According to another embodiment of the present invention, there is provided a method of manufacturing the composite false warp yarn and the woven fabric.

The composite false-twist yarn according to the present invention improves the texture and color, while retaining the good physical properties of the synthetic filament yarn constituting the composite false-twist yarn by the crimp (crimp) and the NEP (NEP) imparted to the filament yarn, A similar feeling can be realized.

Further, a woven fabric similar to the natural fiber to which the excellent crimp characteristics are imparted can be obtained by weaving the composite false-weave yarn with weft and warp yarns, and a three-dimensional effect is improved by burning out some yarn constituting the composite false- .

1A and 1B are side cross-sectional views of a composite false warp yarn according to an embodiment of the present invention.
2 is a top view of a woven fabric according to an embodiment of the present invention.
3 is a plan view of a woven fabric according to another embodiment of the present invention, and an enlarged view of a part of a weft or an incline.
4 is a process flow diagram schematically showing a method of manufacturing a composite false twist yarn and a woven fabric according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail in order to facilitate understanding of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

A composite false twist yarn according to an embodiment of the present invention includes two or more kinds of crimp yarns, and the two or more kinds of crimp yarns may be composite twist yarns which are mutually intertwined and fused.

The two or more kinds of winding yarns are two or more kinds of synthetic filament yarns which do not have crimping property, and the crimping property is imparted through the composite twisting process by a single twisting device. In other words, through the composite false twisting process, two or more flat synthetic filament yarns are not only crimped but also mutually intertwined to each other, so that a composite yarn such as one elastic fiber Can be obtained.

On the other hand, the two or more kinds of winding yarns may be derived from the composite twisting process of two or more kinds of synthetic filament yarns. Here, the two or more types of synthetic filament yarns may be different materials themselves, but they may be yarns of the same material but different in glossiness or diameter. For example, the two or more types of synthetic filament yarns may be two or more selected from the group consisting of viscose rayon filament yarns, polyester monofilament yarns, and nylon monofilament yarns.

The viscose rayon filament yarn collectively refers to a fiber made of cellulose, i.e., a polymer of? -D-glucopyranose whose hydroxyl group is not substituted by 15 or more. For example, a viscose rayon filament yarn may be made by spinning cellulose into aqueous solution of sodium cellulose xanthate using aqueous caustic soda solution and carbon disulfide (CS2), followed by spinning in an aqueous solution of sulfuric acid and zinc sulphate.

The viscose rayon filament yarn may have a diameter of 50 to 90 denier (D). As described below, the viscose rayon filament yarn is made of a woven material and then lost by a burn-out process or changed into another melt or carbide, thereby giving the woven material a total three-dimensional effect. The viscose rayon filament yarn has a diameter of 50 denier In the case of small size, it is difficult to obtain the above-mentioned three-dimensional effect. When the size exceeds 90 denier, it may be difficult to properly mix with other yarns which are composite yarns together or to form NEP.

A viscose rayon filament yarn according to an embodiment of the present invention is an artificially unbranded bright yarn having a diameter of 75 denier (D) or a viscose rayon filament 75D BR, spun 40 ') can be used. In addition, the gloss of the viscose rayon filament yarn may be bright to semidull.

On the other hand, the polyester monofilament raw material is obtained by adding one or more third components to terephthalic acid or a derivative thereof and ethylene glycol, propylene glycol, butylene glycol or a derivative thereof, and to a copolymerized polyester polymerized in the presence of a catalyst Can be said to be done

The polyester monofilament yarn according to one embodiment of the present invention may have a diameter of 20 to 40 denier and a gloss of from bright to semidull. On the other hand, it may be a yarn having a partially extinction treated circular cross section, or a yarn having a Y-shaped cross section not subjected to extinction treatment. For example, the polyester monofilament yarn according to one embodiment of the present invention may be a polyester monofilament 20D TBR or a polyester monofilament 20D SD.

The nylon monofilament yarn may include one or more yarns selected from the group consisting of nylon 6, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12 and nylon 46. Meanwhile, the nylon monofilament yarn according to an embodiment of the present invention may have a diameter ranging from 20 to 40 denier and a brilliance ranging from bright to semidull. For example, a monofilament 20D SD or a nylon monofilament 30D SPK.

1A and 1B are side cross-sectional views of a composite false warp yarn according to an embodiment of the present invention. Referring to FIG. 1A, the composite false wares of the present invention may include two or more kinds of winding yarns, for example, a first winding winding 1, a second winding winding 2 and a third winding winding 3, And the like.

Here, the first winding housing 1 is derived from a viscose rayon filament yarn, the second winding housing is derived from a polyester monofilament yarn, and the third winding housing 3 is one derived from a nylon monofilament yarn .

Each of the first to third winding units 1, 2, 3 has a crimp itself. For example, the first winding barrel 1 derived from a filament yarn having a relatively large diameter may have a relatively small degree of crimp as compared with the crimped yarns 2 and 3 having a small diameter.

On the other hand, the first to third winding housing units 1, 2 and 3 have mutually entangled twisted shapes, so that the composite false twist yarns also have crimping as a whole. For example, a composite false twist yarn according to an embodiment of the present invention may have a crimp elongation percentage of 3 to 8%. The crimp elongation percentage is measured by the following method and expressed as an average value of ten measurement results.

Crimp elongation percentage (%) = (? -? 0) /? 0 × 100

Here, l0 is a dead load at 2 mg / D as a standard initial load, and l is a dead load at 100 mg / D as an elongation load.

Meanwhile, at least one of the two or more types of winding yarns constituting the composite false warp yarn according to the embodiment of the present invention may include the neps 4, 5. The neps 4 and 5 may be alternately stacked one or more times along the longitudinal direction of the winding shaft. Unlike the pattern on the surface of the yarn, the NEP refers to a shape in a specific part of the yarn in which the thickness varies depending on the yarn and the like. The cords of the present invention include the neps (4, 5) so that the texture of natural fibers such as hemp or mohair can be imparted.

Conventionally, in order to impart a new color to the cowhide, artificial neps such as fiber pieces are separately attached. However, in this case, it is difficult to attach the nepes and it is difficult to obtain a natural natural fiber feel due to the difference in feeling between the yarn and the nep. The NEPs 4 and 5 of the present invention can provide a more natural texture because the thickness of the neps 4 and 5 is changed using the winding threads 2 and 3 themselves to be formed.

Referring to FIG. 1B, the composite false twist yarn according to one embodiment of the present invention may include a NEP formed on a part of the first winding housing 1, As the barn 1 is alternately superposed one or more times, the traveling directions of the other barn screws 2, 3 may also be alternated at least once. That is, since the first bulb housing 1 is given a NEP in a state where the first to third bulb housing 1, 2, 3 are twisted and mutually twisted, Volume 3 The constellation 1, 2, 3 can be kept twisted and twisted together.

The first winding housing may be a winding housing having a diameter larger than that of the other winding housing 2 or 3. In this case, the first winding housing 1 is derived from a viscose rayon filament yarn, The barn is derived from polyester monofilament yarn and may be derived from a third volume barn (3) nylon monofilament yarn.

Meanwhile, it is preferable that the NEP according to the embodiment of the present invention is formed less than 5 per 1M of the crimped yarn in which the NEP is formed, and the distance between the NEP and another adjacent NEP is not particularly limited.

2 is a top view of a woven fabric according to an embodiment of the present invention. 2, a woven fabric 10 according to an embodiment of the present invention may include the composite false-twist yarns of the present invention as weft yarns 20 and warp yarns 30. [ The weft yarns 20 and the warp yarns 30 may be the same composite warp yarn, but the composite false yarn of the present invention satisfying only the composite warp yarn of the present invention and having different crimp elongation ratios, (30).

3 is a plan view of a woven fabric 50 according to yet another embodiment of the present invention, and an enlarged view of a portion of the weft or warp. The composite false yarns constituting the woven fabric before the burn-out processing include two or more kinds of winding yarns, and at least one of them may be a burn-out winding housing to be removed by burn-out processing. Referring to FIG. 3, the woven fabric 50 of the present invention has a structure in which at least one or more winding yarns are burnt-out and removed, and the burn-out removing unit 100 or the burn- Or a lysate, or a carbide, remaining in the form of another compound. For example, the burn-out roll may be a rolled yarn originating from a viscose rayon filament yarn.

Since the untreated untreated bulls 2 and 3 constitute the warp and weft of the woven fabric 50 while maintaining the original clamping rate, the strength of the woven fabric and the durability and stretchability in repeated use are improved. Further, since some of the veneer stocks are removed after the weaving, when the clothes made of the woven fabric 50 are worn, the feeling of comfort is softened, and the visual effect of the inside can be obtained. Particularly, since the neps are formed on a part of the surfaces of the untreated cords 2 and 3, not only the warpability of the woven fabric is improved but also the effect like natural fibers can be doubled.

Hereinafter, a method of manufacturing a composite false-twist yarn according to an embodiment of the present invention and a method of manufacturing a woven fabric woven with the composite false-twist yarn will be described with reference to FIG.

First, two or more continuous short fibers and filament yarns produced by extrusion from respective spinnerettes are injected into a twisting apparatus through different input ports. As described above, the filament yarn according to one embodiment of the present invention may include a viscose rayon filament yarn, a polyester monofilament yarn, a nylon monofilament yarn, and the like.

On the other hand, in the twisting device, the two or more kinds of filament yarns are twisted to produce a composite twist yarn. Further, the composite yarn in the false twist device can proceed at a constant speed, for example, 50 RPM. The twist rate (twist number) of the composite twist yarn may be 2000 T / M to 3000 T / M. The burning rate can be set in conjunction with the burning temperature to be described later. It is preferable to increase the burning rate as the burning temperature is higher, and to lower the burning rate as the burning temperature is lower.

Then, the composite yarn can be heat-treated at a flammable temperature of 180 ° C to 250 ° C. If the flammable temperature is lower than 180 ° C, it is difficult to obtain the desired crimp elongation of the composite false-twist yarn. In addition, when the flammable temperature exceeds 225 ° C, not only the nylon winding housing becomes excessively hard, but the unique soft touch of viscose rayon housing can be eliminated. Furthermore, the shinto is weakened, and the truncated cone can occur.

After the heat treatment, the heated composite yarn may be subjected to a cooling treatment. By this cooling process, the entangled state between the crimp and the filament yarn applied to each filament yarn is fixed by the twist yarn. The cooling temperature can be appropriately set according to the thickness and type of the filament yarn, and can be performed, for example, in a temperature range of 80 to 100 캜.

On the other hand, the process of imparting NEP (NEP) to one or more yarns of the two or more filament yarns before the production of the composite yarn, or after the heat treatment and before the cooling treatment, may be performed in one flammable apparatus.

In the case of forming the neps before the composite yarn is formed, the filament yarn to be formed by the nep is inserted through the inlet of the twisted machine, and then a part of the yarn is hooked and turned in the direction opposite to the advancing direction of the yarn, Overlap to the next yarn. Here, the length of the NEP is determined by the progress speed of the yarn. In the composite yarn, since an adhesive solvent such as a spinning solution remains, it is possible to form a nep which is alternately superimposed one or more times along the length direction of the yarn. Thereafter, the NEP is fixed through the heat treatment and the cooling process.

In the case of forming the nep after the heat treatment and before the cooling treatment, two or more kinds of filament yarns are put through the inlet of the combustor and heat treated at a temperature of 180 ° C to 250 ° C through a roller and a shaft, . Then, the spindle is passed through the spindle while being softened by the heat treatment, and is spun through a spinar. When the composite filament yarn is cooled and melted, a composite filament yarn in which NEP is irregularly formed with less than 5 per 1M can be obtained. This is efficient in that it utilizes the heat treatment and cooling treatment that are performed for the smell.

The woven fabric as shown in FIG. 2 can be manufactured by weft and slope the composite false-weave. The composite false yarn includes two or more types of winding yarns, of which at least one may be a burn-out winding furnace to be removed by a burn-out process.

Specifically, the burn-out roll housing may be a roll housing originating from viscose rayon. In this case, the treating agent for removing the housing roll from the viscose rayon may contain an acid salt. Examples of the acid salt include sulfuric acid, sodium hydrogen sulfate, ferric sulfate and aluminum sulfate, and inorganic acids and organic acids which can remove viscose rayon in addition to acid salts can be used.

Next, the treatment agent is applied to both sides of the woven fabric, or the woven fabric is contacted and reacted with the treatment agent by impregnating the woven fabric with a container containing the treatment agent. At this time, the temperature may be raised to room temperature or higher to accelerate the oxidation reaction or the hydrolysis reaction of the burn-out roll housing and the treatment agent.

For example, if it is contacted at 160 to 180 ° C for 1 to 5 minutes, the viscose rayon yarn used for woven fabrics undergoes a hydrolysis reaction in an acid atmosphere, the polymerization degree is lowered and dissolved in water or dehydration of cellulose fibers As the reaction proceeds, the cellulose is carbonized and easily removed by washing with water. In this case, the chemically stable polyester yarn in the acid atmosphere does not cause a change in physical properties.

Through the above process, a woven fabric in which some burn-out bowls constituting the woven fabric are removed can be obtained.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.

1: Book 1 Conventions
2: Volume 2 Conventions
3: Book 3 Conventions
4, 5: NEP
6: Nep formation part
10, 50: Weaving
20: Weft
30: Slope
100: Burn-out ceremony removed after burn-out

Claims (6)

And two or more kinds of vine cones mixed together,
Wherein at least one of the two or more types of winding yarns includes a NEP,
Wherein the NEP is formed by alternately overlapping the front and back at least one time along the longitudinal direction of the yarn. The method according to claim 1,
Wherein the crimping yarn has a crimp elongation percentage of 3 to 8%. In the woven material,
The woven fabric
The warp yarns are obtained by weaving warp yarns and weft yarns including two or more yarn bundles which are intertwined with each other,
Wherein at least one of the two or more types of winding yarns includes a NEP,
Wherein the at least two kinds of winding yarns comprise at least one burn-out winding housing,
The burn-out roll housing is derived from a viscose rayon filament yarn,
Wherein the woven material includes burn-out removal, melt, or carbide in accordance with a burn-out process of the burn-out harness housing. Introducing at least two types of filament yarns into a twisting apparatus through different input ports;
Fabricating a twist yarn for the two or more filament yarns in the combustor;
Heat treating and cooling the composite yarn;
Wherein the composite yarn after heat treatment and cooling treatment is agitated to produce a composite false-twist yarn in which two or more winding yarns are mutually intertwined to each other to produce a hybrid false yarn. Weaving a woven fabric by weft and warp of two or more twisted yarns fused together;
Performing a burn-out process on the woven material,
Wherein the at least two types of winding yarns comprise at least one burn-out winding barrel, and the burn-out winding barrel is removed by the burn-out process. 6. The method of claim 5,
Wherein said burn-out volume housing is derived from viscose rayon filament yarn.

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