TW201413076A - Manufacturing method of stretched filament and manufacturing device of stretched filament - Google Patents

Abstract

The objective of the present invention is to uniformly attach the treatment fluid on the filament and to improve the heating efficiency of the heating roller with respect to the filament. The solving means of the spinning winder (1) comprises: a treatment fluid supplying device (3) capable of supplying the treatment fluid containing a treatment agent to the filament spun by the spinning device (2), plural heating rollers (4) for stretching the filament provided with the treatment fluid, and a winder for (5) for winding the stretched filament. The treatment fluid supplying device for supplying treatment fluid to the filament is to disperse the emulsion of the treatment agent into water. The concentration of the treatment agent within the treatment fluid is 40 to 60 % by mass.

Description

Method for producing drawn yarn and manufacturing device for drawn yarn

The present invention relates to a method for stretching a yarn spun from a spinning device and producing a drawn yarn, and a device for producing a drawn yarn.

Patent Documents 1 and 2 disclose an apparatus for stretching a yarn such as a polyester fiber spun from a spinning device and winding the drawn yarn into a package.

The apparatus of Patent Document 1 has two heating rolls for drawing the spun yarn. A filament roller is disposed on each of the heating rolls, and the wire is wound between the heating roller and the yarn dividing roller several times. The filament is stretched between the two heating rolls after being heated to above the glass metamorphic temperature by the heating roller on the upstream side.

The apparatus of Patent Document 2 also has two heating roller groups for stretching the yarn after spinning. One heating roller group is formed by two heating rollers, and the filaments are wound at a winding angle of 180 degrees or more (less than 360 degrees) at each heating roller. The filament heated by the heating roller group on the upstream side to above the glass metamorphic temperature is stretched between the two heating roller groups.

Further, each of the devices of Patent Documents 1 and 2 includes an oil agent which is spun from a spinning device and which is provided with an oil agent (treatment liquid) for the yarn before stretching. To the device. Patent Document 1 discloses that an oil agent having a water content of 80 to 85% is used. On the other hand, Patent Document 2 discloses that an oil agent having a water content of at most 8% is used.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 6-17312

[Patent Document 2] International Publication No. 2011/009498

Patent Document 1 uses an oil agent (treatment liquid) having a relatively high water content. Therefore, in order to stretch the filaments imparted to the treatment liquid, when the filaments are heated to a desired temperature by a heating roller, most of the heat imparted to the filaments is consumed by evaporation of water contained in the treatment liquid, resulting in poor heating efficiency. . As long as it is a structure in which the heating roller is wound a plurality of times as disclosed in Patent Document 1, there is a need to increase the number of wire windings in one heating roller in order to obtain the contact length between the wire and the heating roller. Therefore, it becomes difficult to guide the wire, and there is also a problem that the length of each heating roller is increased. Further, as disclosed in Patent Document 2, in the case where the winding angle of the filament to the heating roller is less than 360 degrees (that is, the number of windings is less than one time), the heating roller is increased in order to obtain the contact length with the heating roller of the filament. The amount, or the need to increase the outer diameter of the heating roller.

In addition, in the heating and stretching of the silk, the treatment liquid with high water content induces the heating history of the tensile line due to evaporation of a large amount of water in the treatment liquid. This is the cause of staining.

Patent Document 2 uses a treatment liquid having a low water content (high concentration of a treatment agent). At this time, in order to reduce the amount of heat consumed by evaporation of water, the heating efficiency of the heating roller is increased. However, the amount of the treatment agent (the component other than the water in the treatment liquid) to be attached to the filament is constant irrespective of the concentration of the treatment agent. That is, when the concentration of the treatment agent is high, the amount of the treatment liquid required is small. Therefore, adjustment of the supply amount of the treatment liquid becomes difficult, and if the adjustment is abnormal, the adhesion amount of the treatment liquid is made uneven. Further, even if it can be appropriately adjusted, even when the amount of the treatment liquid is small, uniform adhesion of the treatment liquid is difficult, and adhesion spots (uneven adhesion) are likely to occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a manufacturing apparatus for a drawn yarn and a method for producing a drawn yarn which are capable of uniformly adhering a treatment liquid to a yarn and which can improve the heating efficiency of the filament by the heating roller.

The method for producing a drawn yarn according to the first aspect of the invention is a method for producing a drawn yarn by drawing a yarn spun from a spinning device, comprising: a treatment liquid application step, and spinning from the spinning device The silk is supplied to the treatment liquid containing the treatment agent, and the stretching step is performed by stretching a yarn after the treatment liquid is supplied by a plurality of rollers including at least one heating roller, and the treatment is applied to the treatment liquid. The liquid is an emulsion in which the above treatment agent is dispersed in water, and the concentration of the treatment agent in the treatment liquid is 40 to 60% by mass.

In the present invention, the concentration of the treatment agent in the treatment liquid imparted to the filament Since the degree is 40% by mass or more, the amount of heat consumed by evaporation of water when the wire is heated by the heating roller is small, and the heating efficiency can be improved. On the other hand, since the concentration of the treatment agent is 60% by mass or less, the required supply amount of the treatment liquid is somewhat increased, so that the treatment liquid can be uniformly adhered to the filament to suppress the occurrence of adhesion spots.

In the first aspect of the invention, the method of producing a drawn yarn according to the second aspect of the invention is characterized in that: 30 ° C measured by a Cannon Fenske method for applying the treatment liquid to the silk in the treatment liquid application step The dynamic viscosity is 100~200mm ² /s.

According to the present invention, since the dynamic viscosity of the treatment liquid is in the range of 100 to 200 mm ² /s, the treatment liquid can be uniformly attached to the filament.

According to a third aspect of the invention, in the first or second aspect of the invention, the treatment liquid is heated before the treatment liquid is supplied to the treatment liquid application step.

According to the present invention, the treatment liquid is heated by the treatment liquid heating means to lower the viscosity of the treatment liquid, and the treatment liquid can be more uniformly adhered.

The apparatus for producing a drawn yarn according to a fourth aspect of the invention is characterized in that, in the apparatus for extending a yarn spun from a spinning device to produce a stretched yarn, the yarn is provided for the yarn spun from the spinning device. a treatment liquid supply device for a treatment liquid containing a treatment agent, and a plurality of rollers for stretching the yarn after the treatment liquid is provided, and the treatment liquid is an emulsion for dispersing the treatment agent in water. The concentration of the treatment agent in the treatment liquid is 40 to 60% by mass.

In the present invention, since the concentration of the treatment agent in the treatment liquid to which the yarn is applied is 40% by mass or more, when the filament is heated by the heating roller, the amount of heat consumed by evaporation of the water is small. Therefore, the heating efficiency can be improved. On the other hand, since the concentration of the treatment agent is 60% by mass or less, the required supply amount of the treatment liquid is somewhat increased, so that the treatment liquid can be uniformly adhered to the filament to suppress the occurrence of adhesion spots.

According to a fourth aspect of the invention, in the fourth aspect of the invention, the wire is wound around the heating roller at a winding angle of less than 360 degrees.

As described above, when the concentration of the treating agent is high (the water content is low), the amount of evaporation of the moisture when the heating roller is heated can be small, and the length of contact between the wire and the heating roller can be shortened. In this regard, the present invention is a configuration in which the heating roller is not wound more than once. At this time, when the contact length of the wire with the heating roller is increased, the number of the heating roller is increased, or the outer diameter of the heating roller is increased, but the size of the device is increased, and the cost is increased. However, as long as the contact length is shortened as described above, the number of heating rolls can be reduced or the diameter can be reduced.

According to a fourth aspect of the present invention, in the fourth aspect of the invention, the present invention provides a separating roller disposed adjacent to the heating roller, and between the heating roller and the yarn dividing roller corresponding thereto. Winding more than one wire.

The present invention is a configuration in which one or more filaments are wound between a heating roller and a dividing roller. At this time, it is necessary to increase the number of windings in order to increase the length of contact between the wire and the heating roller, thus making the operation of the guide wire difficult. Difficult, there is also the problem of the length of the heating roller. However, as described above, once the contact length is shortened, the number of windings of the filament with respect to the heating roller can be reduced.

1‧‧‧Spinning winder

2‧‧‧Spinning device

3‧‧‧Processing liquid imparting device

4‧‧‧heating roller

36‧‧‧heater

41‧‧‧Spinning winder

43‧‧‧Processing liquid imparting device

44‧‧‧heating roller

46‧‧‧Sewing roller

Fig. 1 is a side view of the spinning winder according to the embodiment.

Figure 2 is a perspective view of the heating roller and the guide roller.

Fig. 3 is a view showing a treatment liquid supply guide, wherein (a) is a front view and (b) is a cross-sectional view taken along line B of (a).

Fig. 4 is a table showing the comparative kinetic viscosity of the treatment liquid of the present embodiment and a conventional treatment liquid.

Fig. 5 is a test result in the case where the treatment liquids of the examples and the comparative examples were used.

Fig. 6 is a side view of the spinning reel according to a modification.

Fig. 7 is a front view of a spinning reel according to another modification.

Next, an embodiment of the present invention will be described. Fig. 1 is a side view of the spinning winder according to the embodiment. In the following description, the left side of the first figure is defined as "front", and the right side of the first figure is defined as "rear". As shown in Fig. 1, the spinning winder 1 (corresponding to the "product for manufacturing a drawn yarn" of the present invention) has a treatment for applying a plurality of filaments 10 of a polyester fiber spun from the spinning device 2. The liquid treatment liquid is supplied to the device 3; and the plurality of filaments 10 after the treatment liquid is applied are stretched. The four heating rolls 4 (see Fig. 2); the winding device 5 for winding a plurality of packages P (FDY) to form a plurality of packages P, and the like.

The treatment liquid supply device 3 includes a treatment liquid supply guide 30 disposed below the spinning device 2, and a supply unit 31 that supplies the treatment liquid to the treatment liquid supply guide 30. The plurality of filaments 10 spun from the spinning device 2 are brought into contact with the guide member 30 while being moved downward, and the treatment liquid is supplied to the plurality of filaments 10 (the treatment liquid application step). The details of the treatment liquid application device 3 will be described later.

Figure 2 is a perspective view of the heating roller and the guide roller. As shown in Fig. 2, the four heating rolls 4 (4a to 4d) are housed in an incubator 26 formed of a heat insulating material. Further, in order to easily understand the inside of the incubator 26, the outline of the incubator 26 is shown by a hypothetical line of two dotted lines in Fig. 2 .

As shown in Fig. 1, the four heating rolls 4a to 4d housed in the heat insulating box 26 are positioned below the processing liquid supply guide 30, and are disposed above the front end portion of the bobbin holder 7 of the winding device 5 to be described later. . The four heating rolls 4 are arranged such that the axial directions are parallel to the front-rear direction.

In the four heating rolls 4a to 4d, a plurality of filaments 10 are sequentially wound at a winding angle of less than 360 degrees. Further, the four heating rollers 4 are rotationally driven by motors (not shown). In addition, the four heating rolls 4 are the plurality of filaments 10 after the treatment liquid supply device 3 receives the treatment liquid, and are sent to the winding device 5 on the downstream side.

Further, a heater 27 is provided in each of the four heating rolls 4. The two heating rolls 4a, 4b on the upstream side of the wire moving path among the four heating rolls 4a to 4d are a plurality of wires 10 before stretching. Heated to the glass of polyester Glass metamorphic temperature. Further, the number of rotations of the two heating rolls 4c and 4d on the downstream side is set to be faster than the number of rotations of the two heating rolls 4a and 4b on the upstream side. By this difference in rotational speed (difference in the feeding speed), a plurality of filaments 10 heated up to the glass transition temperature are stretched (stretching step). Further, the two heating rolls 4c and 4d on the downstream side are set to have a higher temperature than the two heating rolls 4a and 4b on the upstream side, and are thermally fixed by the heating of the plurality of drawn strands 10. For example, the two heating rolls 4a and 4b on the upstream side are set to 80 to 100 ° C, and the two heating rolls 4c and 4d on the downstream side are set to be 120 to 170 ° C.

The four heating rolls 4a and 4b are housed in the heat insulating box 26 made of a heat insulating material, thereby suppressing heat radiation. The incubator 26 is mounted with a door 26a that covers the front end surface of the heating roller 4 and is freely switchable. The four heating rolls 4a to 4d are exposed to the front in the open state of the door 26a. In this state, the operator positioned in front of the spinning reel 1 can perform the guide wire on the four heating rolls 4a to 4d. Further, a slit 28 for introducing the plurality of wires 10 into the heat insulating box 26 is formed on the top plate of the heat insulating box 26. Further, a slit 29 for feeding a plurality of filaments 10 from the heat insulating box 26 is formed on the bottom plate of the heat insulating box 26.

On the downstream side of the four heating rolls 4, two guide rolls 11, 12 attached to the main body frame 15 of the winding device 5 are disposed. One of the guide rollers 11 is disposed at a position directly below the incubator 26 in which the four heating rollers 4 are housed. The other guide roller 12 is located behind the heat insulating box 26, and is disposed above the center portion of the bobbin holder 7 of the winding device 5 to be described later. The axial directions of the two guide rolls 11, 12 are parallel to the left-right direction and are orthogonal to the axial direction of the heating roller 4. Further, each of the two guide rollers 11 and 12 is rotationally driven by a motor (not shown). Moreover, the plurality of wires 10 sent from the incubator 26 to the lower side are borrowed The two guide rolls 11, 12 are fed to the winding device 5. Further, as shown in Fig. 1 by a two-dot chain line, the guide roller 12 is movable along the guide 16 to the position of the guide wire near the guide roller 11 (the first figure is indicated by a dotted line of two dots). Therefore, moving the guide roller 12 to the position of the guide wire makes it easy for the operator to perform the guide wire work from the front.

The plurality of filaments 10 stretched by the four heating rolls 4 are wound by the winding device 5, respectively. The winding device 5 includes a main body frame 15 , a disk-shaped turret tool holder 6 rotatably provided to the main body frame 15 , and two tubular tube holders 7 that are provided with a plurality of bobbins B along the axial direction thereof; a plurality of traverse guides 8 for winding a plurality of filaments 10 wound around a plurality of bobbins B; and a plurality of bobbins B (or rolls formed on the bobbin B) mounted on the bobbin holder 7 P) contact contact roller 9 and the like.

The two bobbin holders 7 are turrets 6 that are rotatably supported at the rear in a state in which the axial directions are in the front-rear direction. The two bobbin holders 7 are respectively rotationally driven by a motor (not shown). When each bobbin holder 7 is rotated, the plurality of bobbins B installed in the bobbin holder 7 also rotate integrally with the bobbin holder 7. Further, by rotating the turret tool post 6 supporting the two bobbin holders 7, the two bobbins are switched between the winding position (the upper position in the first drawing) and the retracted position (the lower position in the first drawing). The position of the rack 7. That is, the turret tool post 6 is used as the bobbin holder 7 for switching the winding wire 10.

Above the bobbin holder 7, a plurality of fulcrum guides 13 and a plurality of traverse guides 8 attached to the main body frame 15 are provided corresponding to the plurality of bobbins B, respectively. The plurality of wires 10 fed from the guide roller 12 are respectively hung on the plurality of fulcrum guides 13. In addition, a plurality of filaments 10 are passed through a plurality of traverse guides 8, The corresponding fulcrum guide 13 is branched toward the axial direction of the bobbin B, and is wound around a plurality of bobbins B of the bobbin holder 7 installed at the winding position. Thereby, a plurality of packages P are formed in the plurality of bobbins B described above. In the above-described wire winding, the contact roller 9 is rotated while being in contact with the peripheral surface of the package P by a predetermined contact pressure, and the shape of the package P can be aligned.

Next, the processing liquid supply device 3 will be described. Fig. 3 is a view showing a treatment liquid supply guide, wherein (a) is a front view, and (b) is a cross-sectional view taken along line B of (a). As shown in Fig. 3, the treatment liquid is supplied to the guide member 30, and the front side portion (the front side portion of the paper surface of Fig. 3(a)) has a plurality of yarns spun from the spinning device 2 which are guided in the upward and downward directions. The guide groove 33 of the wire 10. Further, a supply hole 34 connected to the supply portion 31 (see FIG. 1) is formed in the rear side portion of the treatment liquid supply guide 30, and the front end of the supply hole 34 is opened in the guide groove 33. The processing liquid supplied from the supply portion 31 is supplied from the supply hole 34 to the inside of the guide groove 33. The supply unit 31 has a gear pump that discharges the processing liquid, and the gear pump is driven by a motor that can control the number of revolutions of the inverter. Thereby, the supply unit 31 can supply the guide 30 to each of the treatment liquids, and meter and discharge a predetermined amount of the treatment liquid.

In the guide groove 33, a plurality of liquid storage tanks 35 are formed in the upper and lower rows. Each of the liquid storage tanks 35 has a horizontally long shape, and both end portions thereof are stretched to the side faces of the guide grooves 33. The treatment liquid supplied from the supply hole 34 in the guide groove 33 extends to the entire inner surface of the guide groove 33, but in particular, a part thereof is held in the plurality of liquid storage tanks 35. In order to surely hold the treatment liquid, it is preferable to set the liquid storage tank 35 to five or more.

When the plurality of filaments 10 are moved downward while being guided by the guide grooves 33, the treatment liquid in the guide grooves 33 is adhered to the plurality of filaments 10. Further, since the treatment liquid is held in the plurality of horizontally long reservoirs 35, the treatment liquid can be easily spread over the plurality of filaments 10 which are moved in the guide grooves 33.

Next, the wire treatment liquid to be applied to the treatment liquid supply device 3 will be described in detail. The treatment liquid used in the present embodiment is an aqueous emulsion in which a liquid treatment agent (specifically, an oil agent) is dispersed in water.

Further, the concentration of the treating agent in the treatment liquid is 40 to 60% (water content: 60 to 40%). In addition, hereinafter, the concentration unit is simply described as "%", but it means "% by mass". Further, in order to uniformly apply the treatment liquid to the wire 10, the viscosity of the treatment liquid is preferably 100 to 200 mm ² /s at the ambient temperature (30 ° C) at the time of use of the dynamic viscosity measured by the Canon-Fenske method.

When the concentration of the treatment agent in the treatment liquid to which the yarn 10 is applied is 40% or more, when the filament 10 is heated by the heating roller 4, the amount of heat consumed by evaporation of water is small, and the relative amount of heat of the filament 10 can be increased. Heating efficiency. Therefore, by the four heating rolls 4, the plurality of filaments 10 can be surely heated to the temperature required for stretching to improve the quality of the yarn.

On the other hand, when the amount of the processing liquid supplied from the supply unit 31 is small, the allowable range of the adjustment error of the supply amount of the processing liquid in the supply unit 31 is narrowed, and adjustment is difficult. In other words, the amount of the treatment agent (the component contained in the treatment liquid) can be greatly changed by increasing or decreasing the supply amount of the treatment liquid with respect to the set amount. And even if the adjustment is appropriate, the amount of the treatment liquid is small The plurality of wires 10 still have difficulty in uniformly attaching the treatment liquid, and are liable to cause adhesion spots (uneven adhesion).

At this point, since the concentration of the treatment agent is 60% or less, the supply amount of the treatment liquid is somewhat increased. For example, when the concentration of the treatment agent is 60% as compared with the case where the treatment agent is 100% (water content: 0%), the amount of the treatment liquid required is 1.67 times, and when the concentration of the treatment agent is 40%, 2.5 times. As described above, when the supply amount of the treatment liquid is large, the treatment agent can be uniformly adhered to the plurality of filaments, and the occurrence of adhesion spots (uneven adhesion) can be suppressed.

In the conventional conventional treatment liquid, the dynamic viscosity of the treatment agent is extremely high in the range of 40 to 60%. When the viscosity (dynamic viscosity) is large, the treatment liquid does not uniformly adhere to the filament 10, and the generation of the adhesion spots becomes easy, and conventionally, it cannot be used in this viscosity range.

In addition, conventionally, a treatment agent for synthetic fibers containing a specific lubricant and a nonionic surfactant and an anionic surfactant in a predetermined ratio has been proposed as a treatment liquid having a good process passability, but the concentration of the treatment agent along with the emulsion in the process The change, especially in the range of 40-70% concentration, leads to a rapid increase in viscosity. At this time, there is a problem in that the treatment agent is applied to the guide member 30 or the cross nozzle, the moving nozzle is filled with gelatinous dross, or the processability of hair growth, broken yarn, or the like is inferior.

On the other hand, the treatment liquid of the present embodiment (for example, manufactured by Takemoto Oil Co., Ltd.) In TMT-200), the concentration of the treating agent is 40% or more, and the increase in the dynamic viscosity is slight, and the dynamic viscosity substantially the same as that of the stock solution having a concentration of 100% can be suppressed. Therefore, as described above, even if the concentration of the treatment agent is in the range of 40 to 60%, the viscosity does not rise particularly as in the conventional treatment liquid, and the occurrence of adhesion spots is unlikely to occur.

Specific examples are given regarding the concentration of the treatment agent and the viscosity of the treatment liquid. The fourth embodiment is the treatment liquid of the present embodiment (made by Takemoto Oil Co., Ltd.) TMT-200) A table showing the dynamic viscosity of a conventional treatment solution. Further, the dynamic viscosity of Fig. 4 is a value at a temperature of 30 °C. As shown in Fig. 4, the conventional treatment liquid has a treatment concentration of 70% → dynamic viscosity of 1810 mm ² /s, concentration of 60% → dynamic viscosity of 9160 mm ² /s, concentration of 50% → dynamic viscosity of 306 mm ² /s, concentration of 40%. → Dynamic viscosity 243mm ² / s. That is, the dynamic viscosity is shown to be a high peak near the concentration of 60%. On the other hand, the treatment liquid used in the present embodiment ( TMT200) is a full-area region with a concentration range of 40% to 70%, achieving a dynamic viscosity of 100 mm ² /s.

[Examples]

Next, a specific example of producing a drawn yarn using the above-described treatment liquid will be described in comparison with a comparative example. The treatment agent is made of Takemoto Oil Co., Ltd. TMT-200.

Fig. 5 shows the test results in the case where the treatment liquids of the examples and the comparative examples were used. As shown in Fig. 5, here, a treatment liquid (comparative example) using a treatment liquid having a treatment concentration of 40%, 50%, or 60% and a treatment agent concentration of 30%, 70%, and 90% (comparative example) is used. The spinning of the polyester fiber is stretched to produce a drawn yarn (FDY).

As shown in Fig. 5, the above examples and comparative examples were evaluated in three major items of hairiness, silk quality, and silk guiding properties. (1) furry: treatment When the liquid is not uniformly imparted to the filament, the filament is easily broken, and when the filament is wound into a package in a state where the filament is broken, the end surface of the package is exposed to the hair. Here, it is checked whether or not the wound end face after winding has the appearance (quantity) of hairiness. The furry occasion is "O".

(2) Silk quality: The silk quality was further evaluated by the following three small items (a) to (c). (a) is an oil droplet (abbreviated as "OD" in Figs. 4 and 5).

The presence or absence of the dropping of the treatment liquid (oil agent) from the treatment liquid to the guide was visually observed. When the oil droplets are generated, the amount of the treatment liquid in the guide is changed, and the possibility of the adhesion spots on the filament is increased. (b) Spotting The drawn yarn was actually impregnated, and the result of visual evaluation was expressed by the number of points, and 4 or more points were acceptable. (c) U% is a value of U% (Normal) measured by a USTER company's silk spot measuring device, and 1% or less is acceptable.

(3) Guide wire property: Although the treatment agent contains a component for preventing static electricity, when the wire has an adhesion spot (uneven adhesion), the wire may be attracted by the roller and the wire may not be guided when the guide wire is used. In the case of the wire, it is "○", and when the wire is attracted by the roller and the wire is not guided, it is "x".

(test)

In the concentration of the treating agent of 30%, the staining spot is less than 4 points, and the U% is also more than 1%, resulting in poor quality of the silk. This is because the heating of the heating roller is insufficient, resulting from a situation in which the stretching is poor. On the other hand, when the concentration of the treating agent is 70%, fur is generated. Further, when the concentration of the treating agent is 70% or 90%, oil droplets are generated. From these, it can be inferred that the concentration of the treatment agent is 70% or 90%. It is a state in which the treating agent is uniformly attached to the wire in a difficult state. Further, in particular, when the concentration of the treating agent is 90% and the number of filaments is large (Comparative Example 5), the yarn is attracted by the roller. The guide wire cannot be performed at all. This is especially the case where a filament is thin, and a part of the filament which is not sufficiently adhered to the treatment agent tends to adhere to the roller. On the other hand, in the examples in which the treatment agent concentration was 40 to 60%, good results were obtained for all of the three types of hairiness, silk quality, and yarn guide properties for any silk type.

Next, a modified form in which various modifications are applied to the above embodiment will be described below. Incidentally, the same configurations as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be appropriately omitted.

[1] In order to uniformly attach the treatment liquid to the filament 10, the viscosity of the treatment liquid is preferably low. For this reason, as shown in Fig. 6, a heater 36 (treatment liquid heating device) may be provided, and the treatment liquid supplied to the treatment liquid supply guide 30 by the treatment liquid supply device 3 may be heated in advance. As described above, before the filament 10 is applied, the treatment liquid is heated by the heater 36 to lower the viscosity of the supplied treatment liquid in advance, so that the treatment liquid can be more uniformly adhered to the filament 10.

[2] In the above embodiment, the filaments 10 are wound around the four heating rolls 4, but the number of the heating rolls 4 is not limited to four, and can be appropriately changed.

[3] In the above embodiment, the fabric is wound at a winding angle of less than 360 degrees on one heating roller. However, as described below, the filament is wound one or more times on one heating roller. The invention can also be applied.

Fig. 7 is a view (front view) showing the spinning reel of this modification from the front. The spinning winder 41 of Fig. 7 has a processing liquid supply device 43, two heating rollers 44, a winding device 45, and the like. The respective separation rollers 46 are disposed adjacent to each of the heating rollers 44, and the respective heating rollers 44 and the corresponding separation rollers 46 are housed in the thermal insulation box 47. The plurality of filaments 10 are wound one or more times between each of the heating rollers 44 and the yarn dividing roller 46 adjacent thereto.

In the above configuration, in order to surely increase the contact length between the filament 10 and the heating roller 44 when the filament 10 is heated to a predetermined temperature, it is necessary to increase the number of windings. However, at this time, the guide wire work becomes difficult, and there is also a problem that the heat roller 44 is elongated. However, according to the present invention, the heating efficiency of each of the heating rolls 44 can be improved by using the treatment liquid having a treatment agent concentration of 40 to 60%. Thereby, the length of contact between the wire 10 and the heating roller 44 can be shortened, and the number of windings of the wire 10 with respect to the heating roller 44 can be reduced.

[4] In the above embodiment, the four rollers 4a to 4d in which a plurality of filaments are wound are all heated rollers having the heater 27, but in the case where the filaments having a low glass transition temperature such as nylon are stretched, In particular, the roller before the extension does not need to be a heating roller.

1‧‧‧Spinning winder

2‧‧‧Spinning device

3‧‧‧Processing liquid imparting device

5‧‧‧Winding device

6‧‧‧ turret

7‧‧‧Tube rack

8‧‧‧ traverse guide

9‧‧‧Contact roller

10‧‧‧ silk

11, 12‧‧ ‧ guide roller

13‧‧‧ fulcrum guide

15‧‧‧ body frame

16‧‧‧ Guide

26‧‧‧ incubator

26a‧‧‧

30‧‧‧Processing fluid imparting guides

31‧‧‧Supply Department

B‧‧‧Bob

P‧‧‧Pack

Claims (6)

A method for producing a drawn yarn, which is a method for producing a drawn yarn by stretching a yarn spun from a spinning device, characterized by comprising: a treatment liquid imparting step for spinning from the spinning device a silk, a treatment liquid containing a treatment agent, and a stretching step of stretching the filaments after the treatment liquid is supplied by a plurality of rollers including at least one heating roller, and the treatment liquid imparting the filaments in the treatment liquid application step An emulsion obtained by dispersing the above treatment agent in water, wherein the concentration of the treatment agent in the treatment liquid is 40 to 60% by mass. The method for producing a drawn yarn according to the first aspect of the invention, wherein the dynamic viscosity at 30 ° C measured by the Cannon-Fenske method for applying the treatment liquid to the silk in the treatment liquid application step is 100 to 200 mm ² /s. The method for producing a drawn yarn according to the first or second aspect of the invention, wherein the treatment liquid is heated before the yarn is supplied to the treatment liquid application step. An apparatus for producing a drawn yarn, which is a device for stretching a yarn spun from a spinning device to produce a drawn yarn, comprising: a treatment liquid supply device for spinning from the spinning device a wire, a treatment liquid containing a treatment agent, and a plurality of rollers, comprising at least one heating roller for stretching the yarn after the treatment liquid, wherein the treatment liquid is an emulsion in which the treatment agent is dispersed in water. Above The concentration of the above treatment agent in the treatment liquid is 40 to 60% by mass. The apparatus for producing a drawn yarn according to the fourth aspect of the invention, wherein the yarn is wound around the heating roller at a winding angle of less than 360 degrees. The apparatus for producing a drawn yarn according to the fourth aspect of the invention, wherein the yarn is disposed adjacent to the heating roller, and is wound once or more between the heating roller and the yarn dividing roller corresponding thereto. Silk.