JP4801404B2 - High-speed liquid flow penetrating device and various fiber processing devices equipped with the penetrating device - Google Patents

Description

  The present invention relates to a high-speed liquid flow penetrating device for a fiber structure such as a fiber tow, woven or knitted fabric, and nonwoven fabric having a nozzle header having a plurality of nozzles branched from a main pipe into which a high-pressure fluid is introduced from one end, and the same liquid flow penetrating The present invention relates to various fiber processing apparatuses to which the apparatus is applied.

  Conventionally, when continuous liquid treatment is applied to long fiber structures, for example, long fiber tows, woven or knitted fabrics, and nonwoven fabrics having a continuous length, the traveling fiber structure is immersed in liquid or liquid is applied. Various treatments are performed by contacting with a roller, spraying by spraying or the like, or spraying a high-pressure liquid on a fiber structure and penetrating a high-speed liquid flow.

  For example, in Japanese Patent Publication No. 45-35803 (U.S. Pat. No. 3,343,383, Patent Document 1) and Japanese Patent Publication No. 46-17288 (Patent Document 2), fibers in the wet spinning method of synthetic fibers are used. The above-described liquid flow penetration method and apparatus suitable for tow cleaning have been proposed. This liquid flow penetration method and apparatus are not limited to the cleaning of fiber tows, but can be applied to the dyeing, various finishing treatments, and drug application for the fiber structure as described above.

  In general, when a synthetic fiber such as an acrylic fiber is produced by a wet spinning method, a spinning stock solution composed of a polymer or copolymer and a solvent is extruded into a coagulation bath through a spinning nozzle, and a large number of continuous solutions are produced by the coagulation liquid. A fiber tow made of fibers is formed. In order to produce a high-quality fiber tow, it is required that the solvent contained in the fiber be completely removed. In order to remove this solvent, the fiber tow that has exited the coagulation bath is usually introduced into a washing step to remove the residual solvent contained in the fiber tow. The fiber tow that has passed through the washing step is subsequently sent to the stretching step, where it is heated and stretched at a temperature equal to or higher than the secondary transition point of the polymer. This heating and stretching may be performed at the same time.

  In the washing step, the washing is generally performed using a so-called cascade in which a washing liquid is flowed from the downstream side to the upstream side in the traveling direction of the fiber tow to remove the solvent from the tow. For example, according to Patent Document 2, in the cleaning method using this cascade, a part of the cleaning liquid forms a boundary layer around each fiber constituting the fiber tow, and the solvent contained in the fiber together with the tow itself. Carried, the boundary layer interferes with the rinsing process. The reason is that the fibers have affinity for the cleaning liquid, so that the cleaning liquid cannot effectively enter and exit the tow and cannot contact the fibers. On the other hand, it is said that it is necessary to use a high-temperature cleaning solution in a cleaning method using simply a cascade.

  Further, according to Patent Document 2, an attempt has been made to remove the above-mentioned boundary layer by strongly bending or pressing the fiber tow in a cascade. However, it is impossible to bend it strongly in the cascade, and it is difficult to use a stripper bar or roller to press and squeeze it, and it is difficult unless a large amount of pressing force is applied, and a large denier tow is washed. In such a case, a particularly large pressure is required, which causes an increase in friction between the outer fiber and the pressing member, leading to breakage and other damage.

  Therefore, for example, according to Patent Document 1, the cleaning chamber has upper and lower wall portions and left and right wall portions that are spaced apart from each other enough to allow the fiber tow to pass through, and is disposed at the front and rear end portions of the lower wall portion. A liquid passage is formed, and a liquid supply passage extending left and right is provided at the center of the lower wall portion. The lower wall surface where the liquid supply passage opens is a flat surface, and the inner wall surface of the upper wall portion directly above the opening is formed in two arcuate inner wall surfaces in the front-rear direction so that the cleaning liquid ejected from the liquid supply passage is I try to distribute it. Further, the upper wall portion is formed by alternately arranging a planar inner wall surface and an arc-shaped inner wall surface following the arc-shaped inner wall surface. The inner wall surface of the lower wall portion is also formed with a plurality of arc-shaped inner wall surfaces and planar inner wall surfaces alternately in the moving direction of the fiber tow, and the arc-shaped inner wall surface and the planar inner wall surface are the upper wall portion. The flat inner wall surface and the arc-shaped inner wall surface are arranged to face each other. The liquid supply path communicates with a main pipe line having a rectangular cross section extending in a direction transverse to the moving direction of the fiber tow in the cleaning chamber, and a sub pipe line having an inverted triangular cross section at the upper part of the main pipe line.

  In the cleaning, the high-pressure cleaning liquid is introduced into the liquid supply path while the fiber tow is moved through the chamber, and is ejected from the sub-pipe through the elongated rectangular opening. The arc-shaped inner wall surface is divided into the front and the rear and is press-fitted, and the flow is discharged to the outside through a drainage passage formed at the front and rear ends of the cleaning chamber. While the cleaning liquid flows from the central liquid supply path to the front and rear drain paths, each flow is alternately directed from the upper side to the lower side and from the lower side to the upper side by the arc-shaped inner wall surfaces of the upper and lower wall portions, thereby forming a ribbon-like shape. It penetrates several times by repeating meandering up and down with respect to the running surface of the fiber tow. When the cleaning liquid penetrates the fiber tow, the gap between the constituent fibers of the fiber tow is narrow, so that the cleaning liquid becomes a complete turbulent flow and the cleaning effect is improved.

Further, for example, according to U.S. Pat. No. 3,791,788 (Patent Document 3), a treatment liquid (cleaning liquid) is applied to the fiber tow 1 at a predetermined flow rate from below with respect to the traveling surface of the traveling fiber tow. The treatment liquid penetrated as many times as possible is caused to flow in the front-rear direction with respect to the traveling direction on the upper surface of the tow and discharged from the front and rear of the treatment chamber, and the flow rate of the treatment liquid when penetrating this fiber tow, It is disclosed that a speed satisfying a predetermined formula is disclosed, and it is described that a speed that is three times the speed is particularly preferable. Furthermore, according to the example of cleaning the acrylic fiber tow listed therein, it is exemplified that the treatment is performed in four stages while circulating the cleaning liquid. At this time, it is disclosed that the cleaning liquid is overflowed and circulated from the downstream side in the traveling direction of the tow to the upstream side, and the cleaning liquid may be replenished in the most downstream cleaning chamber.
Japanese Examined Patent Publication No. 45-35803 Japanese Patent Publication No.46-17288 US Pat. No. 3,791,788

  By the way, in the liquid processing apparatus disclosed in each of the above-mentioned Patent Documents 1 to 3, the upper and lower inner wall surface structure in the cleaning chamber or the flow rate at the time of pressing the cleaning liquid into the cleaning chamber will be described. The structure of the liquid supply part such as the cleaning liquid is simply described in Patent Document 1 described above, and other Patent Documents 2 and 3 disclose only a rectangular cross-section passage. On the other hand, in the case of cleaning a ribbon-like fiber structure, for example, a fiber tow, normally, one fiber tow is not cleaned, and cleaning is performed while a plurality of fiber tows are run in parallel.

  The reason why the branch pipe having a special cross-sectional shape as in Patent Document 1 is adopted is considered that the cleaning according to Patent Document 1 tries to apply the cleaning liquid to the fiber tow as a turbulent state. . As a result, when the cleaning liquid is applied to the fiber tow at a high pressure in the same document 1, it is ejected in multiple directions from the opening because it passes through the diverging flow path, and the injection region for the fiber tow does not have an opening shape. The flow rate is also likely to decrease. For this reason, the cleaning ability is also reduced. In order to guarantee this, the supply pressure of the liquid must be further increased, and the pump as the power source for that purpose must be enlarged.

  Furthermore, when the upper and lower wall surfaces of the cleaning chamber disclosed in Patent Document 1 and Patent Document 2 are formed in a shape in which the liquid flow meanders in the vertical direction, the pressure loss of the high-speed fluid is extremely large, and the flow velocity is also on the downstream side. Then it will be extremely slow. As a result, it becomes difficult to perform uniform liquid treatment on each fiber tow traveling in parallel with the above-described configuration of the sub-pipe.

  The present invention has been made to solve these conventional problems. Specifically, the present invention includes a nozzle header capable of performing uniform liquid treatment in the width direction on a fiber structure having a continuous length, and has low motive energy. It is an object of the present invention to provide a high-speed liquid flow penetrating apparatus capable of realizing high performance and various liquid processing apparatuses to which the high-speed liquid flow penetrating apparatus is applied.

The most basic configuration of the present invention includes a main pipe having a connection portion with a liquid supply source at one end and a closed inner diameter closed at the other end, and a plurality of nozzles branched from the main pipe at a substantially right angle. and, Ri Na includes a liquid jet nozzle header value of the ratio of the inner diameter D of the main pipe and the internal diameter d of the nozzle is 0.6 or less, the nozzles, proximal end opening portion thereof has a circular cross-section The fiber tow, characterized in that the tip opening portion has a rectangular cross section, has a form gradually flattened from the base end opening portion to the tip opening portion, the area of all the opening cross sections are the same , It exists in the high-speed liquid flow penetration apparatus with respect to fiber structures, such as a knitted fabric and a nonwoven fabric. Preferably, the value of the ratio between the inner diameter d of the nozzle and the inner diameter D of the main pipe is in the range of 0.2 to 0.4.

In a preferred aspect of the nozzle, the base end opening portion has a circular cross section, and the tip opening portion has a slit-like rectangular cross section. The main pipe can also be configured to have a double pipe structure in which a second main pipe having one end connected to the liquid supply source and the other end closed is inserted therein. It is desirable that a large number of small holes arranged in the axial direction pass through the second main pipe.

  Alternatively, the internal space of the main pipe is divided up and down with a partition plate in which a large number of small holes are formed, and the supply of liquid to the header is performed in the internal space on the side opposite to the side where the nozzle of the partition plate protrudes. It can also be made to.

In order to uniformly inject the high-speed fluid injected from the high-speed liquid flow penetrating apparatus of the present invention in the width direction of each fiber structure, the long side direction of the tip opening of each nozzle is made parallel to the axis of the main pipe. It is important to turn to

  In the high-speed liquid flow penetrating apparatus according to the present invention, according to a preferred aspect, at least one bowl-shaped plate member is disposed facing the nozzle tip opening portion of the liquid jet nozzle header, and the width of the bowl-shaped plate member is It has a slit extending in the direction and penetrating through the bottom, and each nozzle tip opening portion of the liquid jet nozzle header is preferably provided in the slit.

  Further, two or more bowl-shaped plate members are arranged in parallel, and the liquid jet nozzle header is arranged below the bowl-shaped plate members so that the axis of the main pipe is orthogonal to each bowl-shaped plate member. It is preferable that each slit formed in the bottom of the bowl-shaped plate member and each opening at the nozzle tip of the liquid jet nozzle header are tightly coupled.

Effect

  When the value of the ratio with the inner diameter D of the main pipe exceeds 0.60, the pressure on the closed end side in the internal flow path of the main pipe becomes higher than the pressure on the pressure fluid introduction side in a quadratic function, and the fiber Uniform liquid treatment for structures is difficult. On the other hand, if it is smaller than 0.2, the diameter of the main pipe is relatively large with respect to the nozzle, and if a desired fluid pressure is to be obtained, the capacity of the pump as the power source must be increased. At the same time, the installation space for the main pipe may increase. By setting the ratio to 0.2 or more, it is not necessary to extremely increase the inner diameter D of the main pipe, and at the same time, the difference in fluid pressure between the liquid introduction side and the closed end side can be suppressed within an allowable range. It is possible to perform uniform liquid processing on the fiber structure.

  When the main pipe has a double pipe structure as described above, the pressure fluid once introduced into the second main pipe is ejected from a small hole of the second main pipe and circulated along the periphery of the second main pipe. Are introduced into the upper branch nozzle. As a result, the liquid pressure at the base end of each nozzle is averaged, and the liquid pressure introduced into the nozzle on the liquid introduction end side of the main pipe and the nozzle on the closed end side are compared with the case where the double pipe structure is not taken. The pressure difference between the liquid pressure introduced to the liquid can be almost eliminated, and even in continuous liquid processing such as a fiber structure having a continuous length, there is no unevenness in penetration of the liquid, not limited to cleaning processing, It can be suitably applied to oil agent application and dyeing.

  The nozzle has a shape in which the base end opening portion has a circular cross section, the tip opening portion has a rectangular cross section or a slit-like cross section, and is gradually flattened from the base end opening portion to the tip opening portion. In addition, the pressure fluid is rectified in the nozzle, and the cross-section of the liquid ejected from the nozzle tip opening is the shape of the nozzle tip (elongated slit shape). A shape close to (rectangular cross section) is ejected, and liquid ejection unevenness to the fiber structure is eliminated.

  In order to uniformly inject the high-speed fluid injected from the high-speed liquid flow penetrating apparatus of the present invention in the width direction of each fiber structure, the long side direction of the tip opening of each nozzle is made parallel to the axis of the main pipe. If it is directed to, as mentioned above, it will be suitable as a liquid flow penetration device for the above-mentioned fiber structure such as fiber tow, woven or knitted fabric, and non-woven fabric.

  Further, when a saddle-shaped plate member with a slit is provided on the opening side of each nozzle with a predetermined gap, the liquid ejected from the tip-opening portion of the nozzle Since it is sprayed strongly and diffused and sprayed toward the fiber structure traveling upward from the slit of the bowl-shaped plate member, the fiber structure will be efficiently penetrated, and from the nozzle Compared with the case of direct injection, the processing capacity for the fiber structure is increased.

  In the high-speed liquid flow penetrating apparatus of the present invention, when the bowl-shaped plate members are arranged as described above, two or more bowl-shaped plate members are arranged in parallel, and are formed at the bottom of the bowl-shaped plate member. If each slit and each opening at the tip of the nozzle of the liquid jet nozzle header are tightly coupled, for example, when continuously cleaning the fiber tow traveling, a high-pressure cleaning liquid is introduced from one end of the nozzle header, The cleaning liquid is jetted upward at high speed through the nozzles on the fiber tows traveling in parallel. At this time, the cleaning liquid is rectified in the nozzle and becomes a jet flow having a cross-sectional shape of the slit and penetrates from below toward the fiber tow. At the same time, each component fiber is struck violently and the solvent remaining in the fiber tow is eliminated. Moreover, if the flow rate of the high-speed liquid at this time is adjusted, the liquid can be applied to all the constituent fibers.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a high-speed liquid flow penetrating apparatus provided with a nozzle header for fiber treatment liquid according to the present invention will be specifically described with reference to the drawings.
FIG. 1 is a perspective view showing a first embodiment of the nozzle header. A nozzle header 1 shown in the figure has a cylindrical main pipe 2 having one end connected to a liquid supply source and the other end closed, and a number of nozzles 3 at a predetermined interval in the length direction of the main pipe 2. Is branched perpendicularly to the axis of the main pipe 2. According to this embodiment, both the main pipe 2 and each nozzle 3 are cylindrical.

  An important point in the present embodiment is the relationship between the inner diameter D of the main pipe 2 and the inner diameter d of the nozzle 3. If the inner diameter D and the inner diameter d are set to the same size, the internal pressure increases by 150% as a quadratic function from the high-pressure liquid introduction side of the main pipe 2 to its closed end. In the present invention, the ratio value between the inner diameter d of the nozzle 3 and the inner diameter D of the main pipe 2 is set to 0.60 or less. Usually, when flattening a tow made of multifilaments for liquid treatment, the allowable pressure difference between the high pressure liquid introduction side of the main pipe 2 and its closed end is within 10%. If the value of the ratio between the inner diameter d of the nozzle 3 and the inner diameter D of the main pipe 2 is 0.60 or less, the pressure difference falls within 20%.

  Incidentally, the eight nozzles 3 were branched with an inner diameter D of 200 mm and a pitch according to the distance between adjacent tows in the longitudinal direction of the main pipe 2 and with an inner diameter d of the nozzle 3 of 100 mm (inner diameter ratio 0.5). The pressure difference between the liquid introduction end side and the closed end side of the main pipe 2 was slightly over 9%. At this time, the supply amount of the processing liquid used for processing 1 ton of textile products was set to 5 tons. The pressure difference between the treatment liquid introduction end side and the closed end side of the main pipe 2 was measured under the same conditions except that the ratio value of the inner diameter d of the nozzle 3 and the inner diameter D of the main pipe 2 was set to 0.38. It was within 3%.

  If the ratio of the inner diameter d of the nozzle 3 to the inner diameter D of the main pipe 2 is smaller than 0.20, the inner diameter of the nozzle 3 with respect to the inner diameter of the main pipe 2 becomes too small, so that the nozzle 3 is required. Considering the minimum diameter, the inner diameter of the main pipe 2 is substantially increased, which not only increases the installation space, but also increases the supply amount of the processing liquid and the amount of energy used, leading to an increase in cost. If the ratio between the inner diameter d of the nozzle 3 and the inner diameter D of the main pipe 2 exceeds 0.60, the pressure difference cannot be kept within an allowable range. Incidentally, the pressure difference when the inner diameter “d” of the nozzle 3 and the inner diameter “D” of the main pipe 2 were matched was 150%.

FIG. 2 schematically shows a second embodiment of the nozzle header in the present invention.
The difference between the nozzle header 10 according to this embodiment and the first embodiment lies in the form of the nozzle 13. As shown in FIGS. 2 and 3, the nozzle according to the present embodiment has a base end portion 13 a branched from the main pipe 12 having a cylindrical shape, and a distal end opening 13 b having a rectangular cross section. Then, all cross-sectional areas from the base end portion 13a to the tip opening 13b are made the same area, and the base end portion 13a to the tip opening 13b are continuously flattened.

  With such a nozzle configuration, when the pressure liquid is introduced from the main pipe 12 to each nozzle 13, the liquid in a vortex state is rectified as it flows into the tip opening 13 b, and the opening-shaped cross-section from the rectangular slit-like tip opening 13 b. Ejected as a high-speed fluid with For this reason, the ejected fluid does not diffuse wastefully and efficiently penetrates the fiber structure. As a result, the ratio of the inner diameter d of the nozzle 13 and the inner diameter D of the main pipe 12 is set to 0.60 or less, and the liquid processing efficiency can be further improved as will be described later.

  FIG. 3 shows a modification of the nozzle header 10 for liquid processing according to the second embodiment. According to this modification, the tip opening 13b of the nozzle 13 is not a slit-like rectangle as in the second embodiment, but the long side of the opening 13b has the same length as that in the above embodiment, and the fiber tow traveling direction. Is set longer than the length of one side in the above embodiment. In this case, the penetration area at the time of liquid penetration with respect to the fiber tow becomes large, and the penetration amount per time increases accordingly.

  FIG. 4 is a perspective view of a nozzle header 20 according to a third embodiment obtained by further improving the second embodiment, and FIG. 5 is a longitudinal sectional view schematically showing the internal structure of the nozzle header 20. According to this embodiment, the structure of the main pipe 12 in the second embodiment is changed to a double pipe structure. That is, the main pipe 22 in the present embodiment houses the second main pipe 21 on the same axis. One end of the second main pipe 21 has a connecting portion connected to a liquid supply source (not shown), and the other end is closed in the same manner as the first main pipe 22. Of course, the liquid introduction side end portions of the first main tube 22 and the second main tube 21 are closed except for the connection portion.

  On the opposite side of the second main pipe 21 from the nozzle branch side, two rows of small holes 21a are formed in parallel along the axial direction. In the present embodiment, the value of the ratio between the inner diameter D1 of the first main pipe 22 and the outer diameter D2 of the second main pipe 21 is set to 3/1. Any value within a range of 5/4 can be determined. By adopting such a configuration, the high-pressure liquid introduced from the liquid introduction side end of the second main pipe 21 is ejected downward from the small hole 21a of the second main pipe 21, and then the outer peripheral surface of the second main pipe 21. The inflow pressure in each nozzle 23 is further leveled between the liquid introduction side and the closing side, and is introduced into each nozzle 23. A uniform discharge without discharge spots was made on the tow traveling correspondingly, and it became possible to perform a more uniform liquid treatment.

  FIG. 6 shows a modification of the third embodiment. The liquid processing nozzle header 20 shown in FIG. 6 has a double pipe structure in which the main pipe 22 has the second main pipe 21 as in the third embodiment shown in FIG. However, in this modification, a large number of small holes 21 a are formed over the entire peripheral surface of the second main pipe 21. Even in this modification, the inflow pressure in each nozzle 23 is leveled between the liquid introduction side and the closing side, and a uniform liquid treatment can be performed on the tow that runs corresponding to each nozzle 23.

  FIG. 7 shows a fourth embodiment of a nozzle header applied to the present invention. According to this embodiment, the internal space of the main pipe 22 is divided up and down by the partition plate 25 in which a large number of small holes 25 a are formed, and the nozzle 23 of the partition plate 25 projects to supply the liquid to the header 20. It is made in the internal space on the opposite side to the side where it is done. Even in this embodiment, as in the third embodiment, the inflow pressure in each nozzle 23 is leveled between the liquid introduction side and the closing side, and the tow traveling corresponding to each nozzle 23 is used. And uniform liquid treatment.

  FIG. 8 schematically shows the configuration of the nozzle header 30 according to the fifth embodiment of the nozzle header 20. The nozzle header 30 of the present embodiment also has the main pipe 22, the nozzle 23 branched from the main pipe 22, and the second main pipe 21 housed inside the main pipe 22, similar to the third embodiment. Yes. In the present embodiment, in addition to the above-described configuration, as shown in FIG. 8, a flange-shaped plate member 31 with a slit is further provided so as to face the opening of each nozzle 23.

  As shown in FIG. 8, the saddle-shaped plate member 31 with slits has an H-shaped cross section that is short in the flow direction of the fiber structure, and the left and right edges of the central plate portion body 31a. Left and right wall portions 31b extending vertically up and down. The lower half of the left and right wall portions 31b is closed at the front and rear end surfaces and the lower end surface of the plate body 31a, and the lower surface of the plate body 31a is connected to the opening of the nozzle 23 and the plate body 31a. It is formed in a sealed box shape excluding the formed slit 31c.

  The dimension of the plate portion 31a in the direction transverse to the flow direction of the fiber structure is substantially equal to the width of the fiber structure to be processed.

  FIG. 9 shows a modification in which the slit-like plate member 31 with slits of the fifth embodiment is further improved. Two or more slits 31c extending parallel to each other across the flow direction of the fiber structure penetrate the front and back surfaces at a longitudinally symmetrical position with a predetermined distance across the longitudinal center line L. Is formed. The number of these slits 31c can be set arbitrarily.

  As shown in FIG. 9, when the slit-like plate member 31 having the above-described configuration is attached to the opening of each nozzle 23, the processing liquid rectified and ejected from each nozzle 23 has an upper slit. Compared with the case where the bowl-shaped plate member 31 with slits is not attached to the two or more slits 31c formed on the left and right sides of the bowl-shaped plate member 31, the high-speed processing liquid ejected from each slit 31c is slit. The ejection pressure is made more uniform over the entire opening of 31c. That is, a high-speed liquid flow having a uniform pressure is ejected simultaneously at two or more locations in the traveling direction of the fiber structure to be treated so as to penetrate the fiber structure, and a homogeneous and effective treatment is performed.

  By the way, when the bowl-shaped plate member with two or more slits is used, the processing result can be improved by about 50% compared to the case where the bowl-shaped plate member does not exist. By doing so, for example, as described in Patent Document 1 described above, a sufficient cleaning effect can be obtained without changing the direction of the cleaning liquid sprayed at a high speed in a single high-speed liquid flow penetrating apparatus and repeating a plurality of through cleanings. Is known. As a result, the structure of the high-speed liquid flow penetrating device disclosed in Patent Document 1 can be greatly simplified as described above.

  When two or more bowl-shaped plate members are arranged in parallel, a nozzle header is arranged below the bowl-shaped plate member so that the axis of the main pipe is orthogonal to each bowl-shaped plate member, It is preferable that the slits formed in the bottom portion and the openings at the nozzle tip of the liquid jet nozzle header are tightly coupled. For example, when a traveling fiber tow is continuously washed, a high-pressure cleaning liquid can be introduced from one end of the nozzle header, and the cleaning liquid can be sprayed upward through the nozzles on each fiber tow that travels in parallel. At this time, the cleaning liquid is rectified in the nozzle and becomes a jet flow having a cross-sectional shape of the slit and penetrates from below toward the fiber tow. At the same time, each component fiber is struck violently and the solvent remaining in the fiber tow is eliminated. Moreover, if the flow rate of the high-speed liquid at this time is adjusted, the liquid can be applied to all the constituent fibers.

When two or more bowl-shaped plate members are arranged in parallel, a plurality of bowl-shaped plate members can be integrated. FIG. 10 schematically shows the appearance of a high-speed liquid flow penetrating apparatus according to the present invention in which a plurality of bowl-shaped plate members are integrated. The high-speed liquid flow penetrating device 40 includes a main body 41 in which a plurality of flanges 42 are arranged so as to accommodate a plurality of fiber tows, each of which is a fiber structure, and a center of the back surface of the main body 41 (not shown). The nozzle header 20 disposed in the section is provided. The main body 41 of the high-speed liquid flow penetrating device 40 is composed of a top plate 41a and a rectangular box having a bottom plate (not shown) and a side wall surrounding the four sides, and constitutes a side wall of the flange portion 42 with the top surface of the top plate 41a as the bottom surface. A plurality of vertical walls 42a are erected with a width interval of one fiber tow. Further, the entire collar portion 42 is covered in a sealed manner by a heat insulating cover (not shown).
That is, the collar portion 42 in FIG. 10 corresponds to the collar-shaped plate member in FIGS. 8 and 9, and the main body 41 is formed by integrating a plurality of collar-shaped plate members.

  In the top plate 41a that constitutes the bottom surface of each collar portion 42, a long hole 41b that is perpendicular to the toe traveling direction and that is long in the width direction is formed so as to penetrate to the inside of the main body 41. In the illustrated example, the number of the long holes 41b is only one, but a plurality of the long holes 41b can be formed at a required interval as in the slit 31c shown in FIG. The shape of the long hole 41b is the same as the shape of the tip opening of the nozzle header attached to the lower surface thereof. The nozzle openings of the nozzle header 20 are tightly connected to the elongated holes 41b formed in the bottoms of the flanges 42.

  Thus, according to the high-speed liquid flow penetrating device 40 of the present invention, for example, as described in Japanese Patent Publication No. 45-35803, the direction of the cleaning liquid sprayed at a high speed in a single high-speed liquid flow penetrating device is changed a plurality of times. Even if the through cleaning is not repeated, it has been found that a sufficient cleaning effect can be obtained only by performing a single through cleaning by high-speed jetting with the single high-speed liquid flow penetrating device 40 as in the above embodiment. Yes. As a result, the structure of the high-speed liquid flow penetrating device 40 can be greatly simplified as described above.

  FIG. 11 shows the steps of spinning, washing, drawing and drying acrylic fiber by wet spinning, which is a typical embodiment of various fiber processing apparatuses according to the present invention to which the high-speed liquid flow penetrating apparatus 40 is applied. Shown schematically. In addition, this embodiment is applicable not only to an acrylic fiber but also to an acrylic fiber as, for example, a cellulose fiber, a vinyl fiber, or a carbon fiber precursor.

  In the figure, 50 indicates a spinning bath, 60 indicates a cleaning (first cleaning) step, 70 indicates stretching (second cleaning step), 80 indicates an oil agent application step, and 90 indicates a drying step. Furthermore, in the same figure, a cleaning / stretching process 100 for performing cleaning and stretching simultaneously without separating the cleaning process 60 and the stretching process 70 between the spinning bath 50 and the oil agent application process 80 is arranged, or cleaning is performed. The case where a cleaning / dyeing step 110 instead of the step 60 and the stretching step 70 is provided is also shown.

  That is, when a liquid such as a cleaning liquid, a dyeing liquid, or an oil agent is applied to the fiber tow spun in the spinning bath, the high-speed liquid flow of the present invention is used in any of the cleaning, dyeing, and oiling processes. It shows that the penetrating device 40 can be applied.

  Here, the liquid application mechanism of the high-speed liquid flow penetrating device 40 of the present invention applied to the cleaning / stretching process and the oil agent application process in the case where cleaning and stretching are performed simultaneously between the spinning bath 50 and the oil agent application process 80. Is briefly explained.

  In the spinning bath 50, for example, a spinning stock solution in which polyacrylonitrile is dissolved in a solvent of dimethyl acetoad is extruded through a spinning nozzle into a solvent-water coagulation bath and coagulated into a number of long fibers made of acrylic fibers. This solidified fiber tow is introduced into a washing / stretching process 100 which is the next process. The washing and stretching step 100 in the present embodiment is provided with stretching rolls (not shown) before and after that, and the fiber tow is stretched between the front and rear stretching rolls.

  Washing baths (not shown) provided with the high-speed liquid flow penetrating device 40 are arranged in multiple stages between the stretching rolls arranged at the front and rear. Hot washing water is used for the washing bath. In the present embodiment, for example, as described in Patent Document 1 described above, a single high-speed liquid flow penetration is used rather than repeatedly performing multiple penetrations in the fiber tow using the same high-speed jet liquid flow in a single washing bath. It has been found that a sufficient cleaning effect can be obtained by using the apparatus 40 by passing hot cleaning water through the fiber tow only once by high-speed jetting.

  In the washing / stretching step 100, a plurality of fiber tows exiting from the spinning bath 50 are stretched between the front and rear stretching rolls, and at the same time, high-speed washing water is sprayed from the bottom over the entire width of every fiber tow. It sprays through the long hole 41b formed in the high-speed liquid flow penetration apparatus 40 through each nozzle 3,13,23 of the header 1,10,20,30, and penetrates and scatters above a fiber tow. During this penetration, the fiber tow is drawn at a required draw ratio. Therefore, washing water is sprayed with a strong force for each constituent fiber of each fiber tow, and the constituent fibers can be easily blown through at high speed, and the solvent is efficiently removed.

  Since the optimal drawing temperature of the acrylic fiber is 90 to 100 ° C., the required drawing of the fiber tow is performed at a stretch by drawing under this high temperature. As described above, when stretching is performed simultaneously with the high temperature washing, the fibers are not unevenly stretched, and uniform stretching is possible, so that a high-quality product can be obtained. The fiber tow thus subjected to the washing / stretching process 100 moves to the oil application process 80. Even in the oil agent application step, the high-speed liquid flow penetrating device 40 is used. At this time, the oil agent sprayed at a high speed from the high-speed liquid flow penetrating device 40 penetrates the fiber tow efficiently to replace moisture and the oil agent, and can uniformly apply the oil agent to the constituent fibers of the fiber tow. After the oil agent is applied, it is dried in the drying step 90 and sent to the post-processing step after the next step.

  As shown in FIG. 11, the high-speed liquid flow penetrating device 40 according to the present invention is also used when a cleaning / dyeing process 110 including a cleaning process and a dyeing process is employed instead of the cleaning / stretching process 100. Is called. In this washing / dyeing step 110, after the fiber tow spun using the high-speed liquid flow penetrating device 40 is efficiently washed with washing water, the dye solution is similarly washed using the high-speed liquid flow penetrating device 40. If the fiber tow is sprayed at a high speed, the residual solvent in the fiber tow and the moisture and dye adhering to the constituent fibers can be forcibly replaced, and efficient dyeing can be performed. .

It is structure explanatory drawing which shows typically the nozzle header which is 1st Embodiment of this invention. It is a perspective view of the nozzle header which is 2nd Embodiment of this invention. It is a perspective view which shows the modification of the nozzle header of the 2nd Embodiment. It is a perspective view of the nozzle header which is 3rd Embodiment of this invention. It is a longitudinal section showing the internal structure typically in the third embodiment. It is structure explanatory drawing of the nozzle header which shows the modification of the said 3rd Embodiment. It is structure explanatory drawing of the nozzle header which shows 4th Embodiment of this invention. It is a perspective view which shows partially the nozzle header which is 5th Embodiment of this invention. It is a perspective view which shows the other structural example of the plate with a slit applied to 5th Embodiment. It is a perspective view which shows schematic structure of the high-speed liquid flow penetration apparatus of this invention to which the said nozzle header is applied. It is explanatory drawing which shows the process example of the fiber processing apparatus to which the high-speed liquid flow penetration apparatus of this invention was applied.

Explanation of symbols

1,10,20,30 Nozzle header 2,12,22 Main pipe 3,13,23 Nozzle 13a Base end 13b Tip 21 Second main pipe 21a Small hole 25 (porous) partition plate 25a Small hole 31 Saddle with slit Plate member 31a plate part main body 31b right and left wall part 31c slit 40 high-speed liquid flow penetrating device 41 penetrating device main body 41a top plate 41b long hole 42 rib 42a vertical wall 50 spinning bath 60 first washing step (washing step)
70 Second cleaning step (stretching step)
80 Oil agent application process 90 Drying process 100 Cleaning / stretching process 110 Cleaning / dyeing process

Claims (11)

A main pipe having a connection portion with a liquid supply source at one end and a closed inner diameter at the other end, and a plurality of nozzles branching from the main pipe at a substantially right angle, the inner diameter d of the nozzle and the main pipe the value of the ratio of the inner diameter D of Ri the name includes a liquid jet nozzle header in the 0.6, each nozzle has proximal end opening portion thereof a circular cross-section, closed distal end opening portion thereof a rectangular cross-section And a structure that is gradually flattened from the base end opening portion to the tip opening portion, and the area of all opening cross sections thereof is the same, for fiber structures such as fiber tows, woven and knitted fabrics, and nonwoven fabrics High-speed liquid flow penetration device. The high-speed liquid flow penetrating apparatus according to claim 1, wherein a rectangular cross section of the tip opening portion is a slit-shaped rectangular cross section. The main pipe has a double pipe structure in which a second main pipe having one end connected to the liquid supply source and the other end closed is inserted therein, and the second main pipe is arranged in an axial direction. The high-speed liquid flow penetrating apparatus according to claim 1 or 2, wherein a large number of small holes are formed therethrough. The internal space of the main pipe is divided up and down with a partition plate in which a large number of small holes are formed, and the supply of liquid to the header is in the internal space on the side opposite to the side where the nozzle of the partition plate protrudes. The high-speed liquid flow penetration apparatus in any one of Claims 1-3 made | formed . The high-speed liquid flow penetrating apparatus according to any one of claims 1 to 4, wherein a long side direction of a tip opening of the nozzle is directed parallel to an axis of the main pipe. At least one bowl-shaped plate member is arranged facing the nozzle tip opening portion of the liquid jet nozzle header,
Opening extending in the width direction of the bowl-shaped plate member, and having a slit that penetrates the bottom,
The high-speed liquid flow penetrating device according to any one of claims 1 to 5 , wherein each nozzle tip opening portion of the liquid jet nozzle header is opposed to the slit. Two or more bowl-shaped plate members are arranged in parallel,
The liquid jet nozzle header is arranged below the bowl-shaped plate member so that the axis of the main pipe is orthogonal to each bowl-shaped plate member,
7. The high-speed liquid flow penetrating apparatus according to claim 6 , wherein each slit formed in the bottom portion of the bowl-shaped plate member and each opening at the nozzle tip of the liquid jet nozzle header are tightly coupled. A variety of fiber processing apparatuses comprising the high-speed liquid flow penetrating apparatus according to claim 6 or 7 . The fiber processing apparatus according to claim 8 , wherein the fiber processing apparatus is a cleaning apparatus in wet spinning. The fiber processing apparatus according to claim 8 , wherein the fiber processing apparatus is a dyeing apparatus. The fiber processing apparatus according to claim 8 , wherein the fiber processing apparatus is an oil agent applying apparatus.

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