Apparatus for manufacturing double-sided yarn for artificial turf and double-sided yarn for artificial turf manufactured thereby

Abstract

Provided is an apparatus for manufacturing double-sided yarn for artificial turf. According to an embodiment, the apparatus may comprise: a first-liquid supply pipe through which a melted first liquid is supplied; a second-liquid supply pipe which is disposed in a space physically separated from the first-liquid supply pipe and to which a melted second liquid is supplied; and a confluence unit in which the first liquid introduced through the first-liquid supply pipe and the second liquid introduced through the second-liquid supply pipe converge.

Description

Double-sided yarn manufacturing device for artificial turf and double-sided yarn for artificial turf manufactured thereby

[0001] The present invention relates to a double-sided yarn manufacturing device for artificial turf and double-sided yarn for artificial turf manufactured thereby.

[0002]

[0003] An artificial grass system is composed of an artificial grass pad, a shock-absorbing pad that supports the artificial grass pad, and a filler material laid on the artificial grass pad to simulate the effect of natural grass.

[0004] Since artificial turf was first developed in the United States to overcome the various shortcomings of natural grass, it has been mainly used in sports fields such as baseball fields, soccer fields, and golf courses.

[0005] Artificial grass is increasingly being used because it maintains its green color regardless of the season and is not affected by environmental conditions such as climate. It is also easy to construct and maintain.

[0006] Although artificial grass has a higher initial construction cost than natural grass, it is preferred because it can be used semi-permanently, is easy to maintain, and can always be maintained as an even surface suitable for exercise.

[0007] Artificial turf is artificially manufactured in the shape of grass using synthetic fiber materials. It is formed by sewing yarns formed in the shape of grass onto a base foam sheet, and in order to prevent the yarns formed in the shape of grass from separating from the foam sheet, a coating agent containing an adhesive component is applied to the lower surface of the foam sheet.

[0008] Recently, artificial grass has been researched and developed to provide a similar feel to natural grass while allowing for long-term use.

[0009] However, nylon was mainly used as the initial artificial grass yarn, and although the yarn formed from nylon is tough and has wear resistance, the surface friction of the yarn is high, so there is a risk of joint injuries or burns when it rubs against the body.

[0010] To overcome these problems, there have been attempts to modify the yarn composition, change the molding method, or develop a yarn manufacturing device, but it has been difficult to achieve properties and appearance similar to natural grass.

[0011] Specifically, conventionally developed artificial grass yarn manufacturing devices are difficult to equip with facilities for manufacturing yarns with two or more characteristics in order to achieve similar physical properties and appearance to natural grass, or are designed with a structure that inevitably causes the manufactured yarns to exhibit two or more characteristics, or even if a structure is applied in which yarns are formed from two or more raw materials, the raw materials of two or more yarns are injected into spatially separated molds and then attached through separate pipes, so the difficult structure is applied in which the bonding of the two or more raw materials is insufficient.

[0012]

[0013] The present invention provides a double-sided yarn manufacturing device for artificial turf having properties and appearance similar to those of natural grass, and a double-sided yarn for artificial turf manufactured thereby, to solve the above-mentioned problems, and to manufacture a double-sided yarn for artificial turf in which two or more raw materials are continuously manufactured into one yarn using the fluid flow of the raw materials, and in which the bonding property of the two or more raw materials is improved.

[0014]

[0015] In order to solve the above problem, the present invention provides a double-sided yarn manufacturing device for artificial turf, comprising: a first-liquid supply pipe through which a molten first liquid is supplied; a second-liquid supply pipe spatially separated from the first-liquid supply pipe and through which a molten second liquid is supplied; and a confluence portion where the first liquid introduced through the first-liquid supply pipe and the second liquid introduced through the second-liquid supply pipe join.

[0016] In addition, the present invention provides a double-sided yarn for artificial turf, which is manufactured by the above-described double-sided yarn manufacturing device for artificial turf and includes a first side formed by the first liquid and a second side formed by the second liquid, and which includes any one of the following: the first side and the second side have different colors; the first side and the second side have different glosses; the first side and the second side have different roughnesses; the first side and the second side have different bendings depending on changes in the intensity, wavelength, or temperature of light irradiated; and combinations thereof.

[0017]

[0018] According to one embodiment of the present invention, process efficiency can be improved by continuously manufacturing two or more raw materials into one double-sided yarn using the fluid flow of the raw materials.

[0019] In addition, the present invention can improve the reliability of the quality of the manufactured double-sided yarn by providing a joining portion at the upper part of the slit mold portion so that the hydraulic pressure and flow rate of the raw material are offset.

[0020] In addition, the present invention can produce a double-sided yarn having properties and appearance similar to natural grass by allowing the first and second liquids to come into contact and be extruded in a slit mold section, thereby exhibiting natural curls and colors.

[0021]

[0022] Figure 1 illustrates a double-sided yarn manufacturing system for artificial turf according to one embodiment of the present invention.

[0023] FIGS. 2 to 5 illustrate a double-sided yarn manufacturing device for artificial turf. FIG. 3 illustrates the flow directions of liquid 1 and liquid 2 in FIG. 2, FIG. 4 illustrates in detail the form in which liquid 1 and liquid 2 merge, and FIG. 5 illustrates an xz-axis cross-section at position AA in FIG. 4 to illustrate in detail the form in which liquid 1 and liquid 2 merge.

[0024] Figures 6 to 9 illustrate the shape of the slit mold part according to each embodiment.

[0025]

[0026] Hereinafter, embodiments of the present invention are described in detail. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure complete disclosure of the present invention and to more fully inform those of ordinary skill in the art of the present invention.

[0027] Meanwhile, the double-sided yarn described in the present invention may be applied to a monofilament having a denier of 150 to 2500 denier.

[0028] Meanwhile, the monofilament referred to in the present invention may refer to a double-sided yarn, and for example, may refer to a double-sided yarn formed by contact between one liquid and two liquids.

[0029]

[0030] The following is a detailed explanation with reference to the drawings.

[0031]

[0032] The applicant of the present invention has made various design changes to the applicant's equipment and conducted various trials and errors in order to manufacture a double-sided yarn for artificial turf that has two or more properties but has similar properties and appearance to natural turf, and has thus invented the present invention. Specifically, the applicant of the present invention has made it so that the first and second liquids, which are raw materials that are physically separated and introduced through different paths, join at a junction to cancel out the hydraulic pressure and flow rate differences, and then the first and second liquids come into contact with each other and flow into a slit mold section that performs the extrusion molding of the double-sided yarn. Accordingly, the applicant of the present invention has developed a double-sided yarn manufacturing device for artificial turf that can manufacture a double-sided yarn for artificial turf that has similar properties and appearance to natural turf while achieving a continuous double-sided yarn forming process by allowing the first and second liquids to flow continuously.

[0033]

[0034] Figure 1 illustrates a double-sided yarn manufacturing system for artificial turf according to one embodiment of the present invention.

[0035] Referring to FIG. 1, a double-sided yarn manufacturing system for artificial turf may include a supply unit (10), a forming unit (20), and a shaping unit (30).

[0036] The supply unit (10) is for supplying molten raw material to the forming unit, and various known materials can be supplied as molten raw material.

[0037] For example, the raw material may include synthetic resins such as polypropylene, polyethylene, and nylon, as well as dyes for color expression, ultraviolet stabilizers, antioxidants, and antistatic agents for preventing static electricity generation.

[0038] For example, the original solution may include one or more of the above materials melted.

[0039] For example, two or more raw materials may be supplied, each containing at least one different material.

[0040] The forming unit (20) is for forming double-sided yarn for artificial turf from the raw material, and the double-sided yarn manufacturing device (100) for artificial turf described later with reference to FIGS. 2 to 7 can be applied.

[0041] The forming section (30) is for forming the double-sided yarn formed in the forming section (20) according to the intended use, and may include stretching, cooling, and tufting of the yarn, and the order of each step, the applied device, and the manufacturing conditions may be changed according to the intended use.

[0042] FIGS. 2 to 5 illustrate a double-sided yarn manufacturing device for artificial turf. FIG. 3 illustrates the flow directions of liquid 1 and liquid 2 in FIG. 2, FIG. 4 illustrates in detail the form in which liquid 1 and liquid 2 merge, and FIG. 5 illustrates an xz-axis cross-section at position AA in FIG. 4 to illustrate in detail the form in which liquid 1 and liquid 2 merge.

[0043] Referring to FIGS. 2 and 3, the raw material is supplied to the double-sided yarn manufacturing device (100) for artificial turf, and the double-sided yarn for artificial turf is formed and then discharged to the molding unit (30) described above. In FIG. 3, the arrow indicated by a solid line represents the flow of the first liquid (L1), and the arrow indicated by a dotted line represents the flow of the second liquid (L2).

[0044] A double-sided yarn manufacturing device (100) for artificial turf includes a first-liquid supply pipe (1) through which molten first-liquid is supplied, a second-liquid supply pipe (2) spatially separated from the first-liquid supply pipe (1) through which molten second-liquid is supplied, and a confluence (140) through which first-liquid supplied through the first-liquid supply pipe (1) and second-liquid supplied through the second-liquid supply pipe join.

[0045] At this time, Liquid 1 and Liquid 2 may be melted from the same material or from different materials. Furthermore, Liquid 1 and Liquid 2 may be melted from the same synthetic resin, but may contain different additives, such as dyes and antistatic agents, to exhibit different physical properties.

[0046] A first pressure control unit (110) may be provided at one end of the first liquid supply pipe (1).

[0047] The first pressure control unit (110) can control the hydraulic pressure of the first liquid flowing in through the first liquid supply pipe (1) according to preset conditions. Accordingly, the flowability of the two liquids joining at the joining unit (140) can be primarily controlled so that they flow continuously at a uniform flow rate and hydraulic pressure, thereby improving the reliability of quality.

[0048] A first liquid discharge pipe (111) can be connected to the first pressure control unit (110).

[0049] The first liquid discharge pipe (111) can primarily flow the first liquid with controlled flow, and for example, a height difference can be provided at both ends so that the weight of the first liquid can be added to the flow rate controlled by the first pressure control unit (110) to allow the flow. For example, the first liquid discharge pipe (111) can be extended vertically.

[0050] A second pressure control unit (112) may be provided at one end of the first liquid discharge pipe (111).

[0051] The second pressure control unit (112) can control the hydraulic pressure of the first liquid according to preset conditions. Accordingly, the flowability is secondarily controlled so that the first and second liquids, which are joined at the joining unit (140), flow continuously at a uniform speed and pressure, thereby improving the reliability of quality. For example, the second liquid can flow by its own weight, and the first pressure control unit (110) and the second pressure control unit (112) can be applied to control the hydraulic pressure and flow rate of the first liquid so as to correspond to the hydraulic pressure and flow rate of the second liquid.

[0052] The second pressure control unit (112) can be connected to the first liquid chamber (120).

[0053] At one end of the first liquid chamber (120), a junction (140) is provided for the first liquid and the second liquid to merge. At this time, the first liquid chamber (120) is configured so that the first liquid that has passed through the first liquid chamber passage (121) penetrating the first liquid chamber (120) and the second liquid that is spatially separated from the first liquid flow path can stably merge at the junction (140).

[0054] A slit mold part (150) is provided at the bottom of the joining part (140).

[0055] The slit mold part (150) is used to form the double-sided yarn for the artificial turf being manufactured into a preset shape, and an extrusion mold shape is applied.

[0056] The present invention is characterized in that the first and second liquids flow continuously while being in contact with each other in the space defined by the slit mold part (150). That is, the first and second liquids flow continuously and are introduced into the slit mold part (150), and have a structure in which a double-sided yarn is formed in a form in which they are in contact with each other within the slit mold part (150). Accordingly, the bonding strength of the first and second liquids can be improved. In addition, since the first and second liquids can be formed in a double-sided yarn in a manner in which they are in contact with each other within the slit mold part (150), the present invention can easily control the contents of the first and second liquids constituting the double-sided yarn.

[0057] Meanwhile, the structure in which liquid 1 and liquid 2 join is described in detail with reference to FIG. 4, and the joining portion (140) and the slit mold portion (150) are described in detail with reference to FIGS. 6 to 8.

[0058] A two-liquid chamber (130) may be provided at one end of the two-liquid supply pipe (2).

[0059] The 2-liquid chamber (130) has a predetermined volume to store and / or pass the 2-liquid supplied with a predetermined hydraulic pressure through the 2-liquid supply pipe (2).

[0060] For example, the 2-liquid chamber (130) may have a shape that gradually widens downward in an area connected to one end of the 2-liquid supply pipe (2), for example, a tapered shape in which the cross-sectional area gradually widens downward, and may have a shape that gradually narrows downward again at a predetermined position, for example, a tapered shape in which the cross-sectional area gradually narrows downward.

[0061] For example, a hydraulic pressure gauge may be installed in the two-liquid chamber (130) to measure the hydraulic pressure of the two liquids.

[0062] A two-liquid chamber discharge pipe (131) can be connected to one end of the two-liquid chamber (130).

[0063] For example, the two liquids can flow by their own weight along the two liquid chamber discharge pipe (131).

[0064] A plurality of two-liquid separation discharge pipes (132) can be connected to one end of the two-liquid chamber discharge pipe (131).

[0065] The two-liquid separation discharge pipe (132) is provided to separate and discharge the two liquids into multiple confluences (140) before the two liquids flow into the confluence (140).

[0066] For example, the two-liquid separation discharge pipe (132) may have a structure composed of a single space in which a pipe extending at a predetermined angle and inclined is continuously formed at 360°. As an example, both the outer and inner sides of the two-liquid separation discharge pipe (132) may include a tapered shape so that the area of ​​the xz-axis cross-section increases as it extends downward.

[0067] For example, a plurality of two-liquid separation discharge pipes (132) may be provided spatially separated.

[0068] A two-liquid merging pipe (133) can be connected to one end of the two-liquid separation discharge pipe (132).

[0069] The two-liquid confluence pipe (133) may refer to an area where the two liquids discharged from the two-liquid separation discharge pipe (132) flow through the lower part of the one-liquid chamber (120).

[0070] The two-liquid confluence pipe (133) may have a structure that extends horizontally by a predetermined length in a direction away from the two-liquid separation discharge pipe (132) so that the two liquids can move horizontally by a predetermined distance. Accordingly, the flow rate of the two liquids introduced by their own weight through the two-liquid separation discharge pipe (132) can be easily controlled.

[0071] One end of the two-liquid confluence pipe (133) is connected to a confluence part (140) provided on the upper part of the slit mold part (150).

[0072] The first and second liquids described above are introduced into the junction (140) so that they come into contact at the same height, and then continuously flow along the yarn forming pipe (160) while coming into contact at the slit mold portion (150), thereby forming a double-sided yarn by extrusion.

[0073] Referring to Fig. 4, liquid 1 and liquid 2 merge at the junction (140).

[0074] For example, liquid 1 and liquid 2 may come into contact at the junction (140). That is, the present invention is characterized in that double-sided yarn is continuously manufactured in a state in which liquid 1 and liquid 2 come into contact at the slit mold portion (150). However, if liquid 1 and liquid 2 flowing from different directions immediately join at the slit mold portion (150), it is not easy to control the continuously flowing liquid 1 and liquid 2 to have a uniform thickness within the slit mold portion (150). Therefore, the present invention provides a junction portion (140) at a position where continuously flowing liquid 1 and liquid 2 come into contact so that the hydraulic pressure of each fluid is offset, thereby maintaining the continuity of the process, thereby increasing process efficiency, improving the bonding strength of liquid 1 and liquid 2, and improving the reliability of the quality of the manufactured double-sided yarn.

[0075] For example, the junction (140) may have a structure extending from the end of the 1-liquid chamber tube (121) in a direction away from the 2-liquid junction pipe (133). By this structure, the phenomenon in which the 1-liquid, which has been introduced into the junction (140) by a pre-controlled pressure and its own weight, is pushed a predetermined distance by the hydraulic pressure of the 2-liquid, which has been introduced along the 2-liquid junction pipe (133), can be reflected. Accordingly, by offsetting the hydraulic pressure and the flow rate difference between the 1-liquid and the 2-liquid at the upper portion of the slit mold portion (150), i.e., at the junction portion (140), the 1-liquid and the 2-liquid can be stably introduced into the slit mold portion (150) and extruded into a double-sided yarn.

[0076] Meanwhile, the present invention can control the content ratio of the first and second components constituting the double-sided yarn to achieve properties and appearance similar to natural grass.

[0077] For example, the hydraulic pressure of the first liquid and the hydraulic pressure of the second liquid flowing into the junction (140) can be controlled to be the same, so that the first liquid and the second liquid can be extruded downward with equal thicknesses based on the center line of the slit mold portion (150).

[0078] For example, by controlling the hydraulic pressure of the first liquid flowing into the junction (140) to be higher than that of the second liquid, or by controlling the hydraulic pressure of the second liquid to be higher than that of the first liquid, a double-sided yarn having properties and appearance similar to natural grass can be manufactured.

[0079] For example, to achieve a natural curl or color like natural grass, the first and second components may be selected from polypropylene, polyamide, polyethylene, nylon, polyvinyl chloride, polyurethane, and combinations thereof.

[0080] As a specific example, by applying the double-sided yarn manufacturing device (100) for artificial turf of the present invention, yarn having a rough texture on one side and a soft texture on the other side can be manufactured.

[0081] As a specific example, by applying the double-sided yarn manufacturing device (100) for artificial turf of the present invention, the first and second liquids having different thermal expansion characteristics can be applied so that the curl can change depending on the temperature conditions of the surrounding environment. In addition, by applying different colors to the first and second liquids, the curl can change depending on the amount of sunlight, sunlight time zone, and temperature conditions of the surrounding environment, thereby manufacturing a double-sided yarn exhibiting different colors.

[0082] Figure 5 shows the shape in which liquid 1 and liquid 2 merge as a cross-section along the xz axis at position AA in Figure 4.

[0083] The merging portion (140) may include a 1-liquid merging portion (141) and a 2-liquid merging portion (142). The 1-liquid merging portion (141) refers to an area where the 1-liquid that has passed through the 1-liquid chamber pipe (121) of FIG. 4 flows in, and the 2-liquid merging portion (142) refers to an area where the 2-liquid that has been discharged to the lower end of the 2-liquid separation discharge pipe (132) flows in along the 2-liquid merging pipe (133) and then flows into the merging portion (140).

[0084] As shown in Fig. 5, a plurality of confluence parts (140) and a plurality of slit mold parts (150) are provided, and each confluence part (140) may be provided with a plurality of one-liquid confluence parts (141) and two-liquid confluence parts (142). Accordingly, a plurality of one-liquid chamber pipes (121) connected to a plurality of one-liquid confluence parts (141) may be provided, and a plurality of two-liquid confluence pipes (133) connected to a plurality of two-liquid confluence parts (142) may be provided.

[0085] Figures 6 to 8 illustrate the shape of a slit mold portion according to one embodiment.

[0086] Referring to FIG. 6, the slit mold portion (150) has a shape in which the thickness gradually increases from the two ends to the center, and may have a shape similar to a diamond, for example.

[0087] For example, a slit mold part (150) may have a structure that is symmetrical with respect to the center line (M).

[0088] For example, the slit mold part (150) may be provided with a protrusion. The protrusion may provide a curve to the artificial grass manufactured using the double-sided yarn of the present invention so that it looks similar to natural grass leaves, or may perform the function of absorbing flying dust or moisture.

[0089] For example, the protrusions may be provided in multiple numbers. For example, the protrusions may have a first protrusion (151) formed in the center and second protrusions (152) formed on both sides thereof, each smaller than the first protrusion (151). Accordingly, the verticality of the double-sided yarn can be improved.

[0090] Figure 7 shows the form in which liquid 1 and liquid 2 are introduced into the slit mold section of Figure 6.

[0091] The double-sided yarn manufacturing device (100) for artificial turf of the present invention is characterized in that the first and second liquids are introduced into the slit mold part (150) while in contact with each other, and as shown in Fig. 7, it can be confirmed that the first and second liquids are introduced with equal thicknesses based on the center line (M) of the slit mold part (150).

[0092] Referring to Fig. 8, the slit mold portion (150a) may further include a protrusion (153). The protrusion (153) may be formed only on the first protrusion (151) provided in the central portion, may be formed only on the second protrusion (152), or may be formed on both the first protrusion (151) and the second protrusion (152).

[0093] Additionally, smaller protrusions may be formed on the protrusion (153). Accordingly, the verticality of the double-sided yarn can be improved.

[0094] Referring to FIG. 9, the present invention can be applied to the slit mold section (150) so that the first or second component has a wider thickness depending on the desired properties of the double-sided yarn. Accordingly, a double-sided yarn having a color and curling properties very similar to natural grass can be manufactured, and the shape of the double-sided yarn can be modified depending on the surrounding environment, such as time or temperature. In this case, the first or second component may each be composed of one or more components.

[0095] Meanwhile, the present invention provides a double-sided yarn for artificial grass manufactured by the double-sided yarn manufacturing device for artificial grass described above.

[0096] The double-sided yarn for artificial turf may include a first side formed by the first liquid and a second side formed by the second liquid. In this case, the double-sided yarn for artificial turf may include any one of the following:

[0097] (1) The colors of the first side and the second side are different;

[0098] (2) The gloss of the first side and the second side are different;

[0099] (3) The roughness of the first surface and the second surface are different;

[0100] (4) The bending of the first side and the second side changes depending on the intensity, wavelength, or temperature change of the light being investigated; and

[0101] (5) A combination of (1) to (4) above.

[0102] For example, the first liquid may be mixed with dyes to form a dark green color on the surface of natural grass, and the second liquid may be mixed with dyes to form a light green color (or light green) similar to the back surface of natural grass.

[0103] For example, the first liquid may be mixed with dyes to form a dark green color on the surface of natural grass, and the second liquid may be mixed with dyes to form a brown color.

[0104] Accordingly, the double-sided yarn for artificial grass of the present invention can have a natural color difference between the front and back sides like natural grass, and the color combination of the double-sided yarn for artificial grass can be changed according to the season.

[0105] For example, a matting agent may be added to only one of the first and second liquids. The matting agent may be a product or ingredient known in the art.

[0106] Accordingly, the double-sided yarn for artificial grass of the present invention has a side without a matting agent added, for example, an upper side, which has a relatively high light reflectivity and can imitate the smooth texture of the upper surface of natural grass, and a side with a matting agent added, for example, a back side, which has a low light reflectivity and can imitate the matte texture of the lower surface of natural grass.

[0107] For example, an additive may be added to change the surface roughness of the first and second liquids.

[0108] For example, the additives may include non-polyolefin beads, silicone granules, etc. For example, the non-polyolefin beads have a particle size of 0.1 to 80 ㎛, a melting point of 300 to 550 ℃, and a surface area of ​​the yarn of 1 mm 2 It may contain 3 to 15 beads. For example, the non-polyolefin beads may be at least one selected from the group consisting of polyurethane, polyamide, polyester, and poly(trimethylene terephthalate). For example, the particle size of the silicone granules may be manufactured to be 0.1 to 80 μm, and by using the silicone granules in the present invention, the slipperiness and wear resistance of the surface of the double-sided artificial turf of the present invention may be improved.

[0109] Accordingly, the double-sided yarn for artificial grass of the present invention can imitate the texture of the underside of natural grass by increasing the roughness of the side to which the additive is added, for example, the underside.

[0110] Meanwhile, the double-sided yarn for artificial turf of the present invention can also be manufactured to have different roughness depending on the shape of the slit mold part (150, 150a) applied to the manufacturing device.

[0111] For example, since the first and second liquids are made of raw materials with different coefficients of thermal expansion, the shrinkage rate may vary depending on temperature changes.

[0112] For example, by adding TiO2 to either of the first and second liquids, the bending of the first surface and the second surface can be made to vary depending on temperature change, characteristics of the irradiated light, for example, intensity and wavelength of the irradiated light.

[0113] Accordingly, depending on the characteristics of the light or temperature change, one of the first side and the second side can be highlighted to enable various productions.

[0114] That is, the present invention adopts a structure in which a double-sided yarn is formed in a form in which the first and second liquids come into contact with each other within the slit mold portion (150, 150a) as described above, thereby enabling easy control of the thickness of the first and second liquids, and providing a double-sided yarn capable of producing various effects and imitating natural grass.

[0115]

[0116] As described above, the specific description of the present invention has been made by way of embodiments with reference to the attached drawings, but the above-described embodiments have only been described as preferred examples of the present invention, and therefore, the present invention should not be understood as being limited to the above-described embodiments, and the scope of the rights of the present invention should be understood by the claims described below and their equivalent concepts.

[0117] For example, the drawings are schematically illustrated with each component as the subject to aid understanding, and the thickness, length, number, etc. of each component depicted may differ from the actual figure due to the progress of drawing. In addition, the material, shape, dimensions, etc. of each component illustrated in the above embodiments are only examples and are not particularly limited, and various changes may be made without substantially deviating from the effects of the present invention.

Claims

1. A liquid supply pipe through which molten liquid 1 is supplied; A second liquid supply pipe, which is placed in a space physically separated from the first liquid supply pipe and through which molten second liquid is supplied; and A junction where the first liquid introduced through the first liquid supply pipe and the second liquid introduced through the second liquid supply pipe join; A device for manufacturing double-sided yarn for artificial turf, including:

2. In claim 1, A slit mold part is placed at the bottom of the above joining part, A double-sided yarn manufacturing device for artificial turf, wherein the above-mentioned first liquid and the above-mentioned second liquid are continuously introduced into the slit mold section and have a structure in which double-sided yarns are formed in a form in which they contact each other within the slit mold section.

3. In claim 1, The above joining portion includes a plurality of A double-sided yarn manufacturing device for artificial turf, wherein a two-liquid separation discharge pipe is provided to separate and discharge the two liquids into a plurality of the above-mentioned confluences before the two liquids supplied through the above-mentioned two-liquid supply pipe flow into the above-mentioned confluence.

4. In claim 3, A two-liquid confluence pipe extended to a predetermined length is further provided so that the two liquids separated through the two-liquid separation discharge pipe can flow horizontally. A device for manufacturing double-sided yarn for artificial turf, wherein the end of the above two-liquid confluence pipe is connected to the above confluence portion.

5. In claim 4, A 1-liquid chamber is further provided with a 1-liquid chamber penetration pipe through which the 1-liquid passes in the upper portion of the above-mentioned junction, A double-sided yarn manufacturing device for artificial turf, in which the two-liquid confluence pipe extends from the lower portion of the first liquid chamber.

6. A double-sided yarn for artificial turf, manufactured by a double-sided yarn manufacturing device according to any one of claims 1 to 5, comprising a first side formed by the first liquid and a second side formed by the second liquid, and comprising any one of the following: (1) The colors of the first side and the second side are different. (2) The gloss of the first side and the second side are different. (3) The roughness of the first surface and the second surface are different. (4) The bending of the first side and the second side changes depending on the intensity, wavelength, or temperature change of the light being investigated. (5) Combination of (1) to (4) above

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