JPS6157403B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a mixed sea-island composite fiber bundle having a special structure, and an apparatus for producing the same. The purpose of this is to obtain fibers that exhibit continuous changes in chemical and physical properties intermittently in the fiber axis direction.

Conventionally, most fibers, especially artificial fibers for knitting and weaving, have uniform chemical and physical properties in the fiber axis direction. However, the demands on textile materials from the industry and the consumer side are extremely wide-ranging and diverse. Until now, fibers have been required to have as much uniformity in physical properties and structure as possible, but now fibers have been required to have unevenness and change, diversity and unity, and elegance. Functionality is now in demand.

The mixed sea-island type composite fiber bundle obtained by the present invention attempts to satisfy some of these requirements, and is a new type of composite fiber bundle that has chemical and physical properties in the fiber axis direction. For example, when this fiber is dyed in a certain color and made into a molded product, it has a mélange-like color tone, or has a unique luster, texture, or feel. It has the effect of fully satisfying people's tastes.

The gist of the present invention is as follows.

A bonded sea-island composite fiber comprising at least three types of organic polymeric substances having fiber-forming ability and having different chemical and physical properties, and having island portions in which two types of organic polymeric substances are bonded side-by-side. When spinning a mixed sea-island type composite fiber bundle having sea-island composite fibers having island parts made of one type of organic polymeric substance, the spinning stock solution constituting the island parts is physically heated side-by-side and just before sea-island joining. A method for producing a mixed sea-island type composite fiber bundle characterized by supplying the bundle intermittently to the fiber bundle.

A pedestal having an inlet 7 for a spinning component forming a sea part and an inlet 8, 9 for a spinning component forming an island, an island component introducing hole 28 where two types of island components merge;
It is a mixed sea-island type composite spinning device that is configured by combining a joining chamber 29 for joining both sea-island components and a nozzle plate, and (a) the above-mentioned inlets 7 and 8 are configured to allow independent flows of a plurality of components. The first distribution plate 14 has hole groups 20 and 23 forming an inlet 9.
is the island component spinning dope B conduit 33 in the rotating shaft 38
(b) A second distribution plate 15 is provided below the first distribution plate 14, and by arranging the first distribution plate and the second distribution plate opposite to each other, the island component chamber 24 is formed. A rotatable switch 25 is provided in contact with the upper surface (inlet) of the island component introducing holes 28 and 40 provided at the lower part of the island component chamber, and (c) a second distribution plate and a third distribution plate are provided. 16, and has a rotating shaft (outlet) of a stock solution conduit 34 which is in contact with the bearing side (inlet) of the island component spinning dope B supply pipe 35 and communicates with the stock solution B conduit 33 facing the supply pipe 35. (d) The island component spinning dope B supply pipe 35 is connected to the island component introduction hole 28, and a joining chamber 29 is provided between the third distribution plate and the nozzle plate 18 provided below the third distribution plate.
are provided, and the island component introducing holes 28 and 4
Nozzles 31 and 42 are located at positions facing each set of 0.
A mixed sea-island type composite spinning device consisting of a combination of the above elements.

To explain the present invention in more detail, Figs. is the part consisting of sea components,
1 indicates a one-component island portion having a tapered tip, and 5 indicates a side-by-side island portion.

The mixed sea-island type composite fiber bundle described in the present invention is a composite fiber bundle in which two components having chemical and physical properties different from the sea are joined in the sea, which is a component region that does not have both tapered ends, and has a tapered tip. Ten or more islands coexist in the sea, consisting of component regions with , consisting of sea-island composite fibers in which one or more islands with tapered tips coexist in the sea and are arranged intermittently in the fiber axis direction, with chemical and physical properties different from those of the sea. be done.

In addition, the tapered tip mentioned in the present invention means that when a sea-island composite fiber is cut in the fiber axis direction, the area of each island gradually increases with no sea part existing in the surface occupied by the island. It refers to a shape that becomes smaller and eventually disappears.

The island portion of the bonded sea-island composite fiber may be joined side-by-side over the entire island, as shown in Figure 1 A to B, or both ends of the island may be joined as shown in Figure 1 C. Side-by-side bonding may be performed, or side-by-side bonding may be performed at the central portion of the island (in the direction of the fiber axis), and both ends may be composed of only one component, as shown in FIG.

The island portions 1 having tapered tips are aligned in the fiber axis direction as shown in FIG. 1, and portions 4 consisting only of sea components may be present intermittently or may be arranged randomly. In the former case, a large melange effect can be obtained. Even if the relative positional relationship between the bonded sea-island composite fiber and the island portions 1 in the sea-island composite fiber is random, a mélange-like coloring effect can be obtained. When eluting with a solvent, either the sea-only parts of both sea-island composite fibers partially overlap as shown in Figure 1 A and D, or the sea-island composite fibers partially overlap as shown in Figure 1 B and C.
It is necessary to bundle the fibers so that one of the sea component parts is located near the center (in the fiber axis direction) of one of the island parts.

In addition, the island portion 1 having a tapered tip may exist entirely inside the composite fiber, as shown in FIG. 1 A to C, or may constitute a part of the fiber surface as shown in FIG. An island surrounded by the sea and an island surrounded on all sides by the sea may coexist.

Further, all the island portions 1 may constitute part of the fiber surface.

The effect of the present invention is found when the length of the island ranges from 5 mm to 200 cm; when the length is less than 5 mm, the islands are connected to each other and it is difficult to maintain intermittency, and when it exceeds 200 cm, the melange effect is not sufficient. . The lengths of the island parts within the composite fiber may have the same length,
Even if islands of different lengths coexist, the effects of the present invention are not impaired in any way.

Islands having tapered tips may be adjacent to each other within a range where the island parts do not adhere to each other, and the cross-sectional shape of the island part may have any shape such as a circle, a free circle, or a polygon. The fineness of the island in the axial direction,
Any change in shape will not reduce the effects of the present invention.

The length of only the sea area shown in Figure 1 A to D is 1
You can choose from a range of mm to 200cm depending on the purpose and product. If it is less than 1 mm, it will be difficult to manufacture, and if it exceeds 200 cm, it will be difficult to obtain a melange-like coloring effect.

When a joined sea-island composite fiber containing one or more island components having a tapered tip is bundled together,
By aligning only the sea areas shown in FIG. 1A to D in the fiber axis direction, the melange-like coloring effect can be further strengthened. Furthermore, after crimping, cutting the yarn into short lengths and using it as a spun yarn can also produce a melange-like coloring effect.

In the present invention, the components of the mixed sea-island type composite fiber bundle may be any organic polymer having fiber-forming ability, such as polyvinyl polymers such as acrylonitrile polymers, nylon 6, and nylon 66. Examples include polymers such as polyamides, polyesters, polyolefins such as polyethylene and polypropylene, polyethers, polyurethanes, polystyrenes, and polycarbonates, but are not limited to these polymers.

The combination of the island component having a tapered tip and the sea component is determined by considering the use and purpose of the mixed sea-island type composite fiber bundle to be produced from the synthetic organic polymer, and by taking into account the bonding state of the island component. A combination of these polymeric substances is determined. In other words, if it is necessary to strengthen the bonding of each component of the mixed sea-island type composite fiber bundle to be obtained, a polymer suitable for this should be selected; If it is better to weaken the bond, it is necessary to select an appropriate polymer.

The combination of these organic polymers must have different chemical and physical properties, and may be any combination of chemical composition, molecular orientation, physical strength, elongation, shrinkability, solubility in solvents, etc. Of course, a combination of components having the same chemical composition but different degrees of polymerization may be used. For example, when making a mixed sea-island type composite fiber bundle by wet spinning, the island component with a tapered tip is a cationically dyeable acrylonitrile polymer and polyacrylonitrile with extremely low dyeability, and the sea component is an anionically dyeable acrylonitrile polymer. Combinations include:

When producing by dry spinning, two types of acrylonitrile polymers with different comonomer compositions are used as the island component with a tapered tip, and a modacrylic polymer is used as the sea component, or a combination of two types of acrylonitrile polymers with different copolymerized monomer compositions is used as the island component with a tapered tip, or a combination of modacrylic polymers as the sea component, or a combination of copolymerized monomers for all three components. A combination of acrylonitrile polymers having different body compositions may also be used.

In the case of manufacturing by melt spinning, a typical combination is two types of polyester polymers having different degrees of polymerization joined together as the island component having both tapered ends, and a low melting point polyamide as the sea component.

Next, the method and apparatus for manufacturing a mixed sea-island composite fiber bundle of the present invention will be explained in detail.

FIG. 2 is a sectional view illustrating the main parts of a sea-island type composite spinning apparatus for producing a mixed sea-island type composite fiber bundle of the present invention. In the figure, island component inlets 8 and 9 and sea component inlet 7 are provided at the top of the pedestal 10,
Below the pedestal 10 there is a first distribution plate 14, followed by a second distribution plate 15, a third distribution plate 16, and a nozzle plate 18.
are integrally connected by a holder 19.

The island component spinning dope A introduced from the island component inlet 8 passes through the island component dope hole 23 after passing through the island component distribution groove 12 which is composed of the lower part of the pedestal 10 and the upper part of the first distribution plate 14. A part of the island component is introduced into the island component chamber 24 provided in the second distribution plate 15, passes through the large island component introduction hole 27 provided at the bottom thereof, and is joined side-by-side with the island component spinning dope B through the island component introduction hole 28. , the sea component is pushed out through the nozzle 31 together with the sea component spinning dope, and the rest passes through the large island component introduction hole 39, passes through the island component introduction hole 40, and is extruded into the nozzle 42 together with the sea component spinning dope.
Mixed sea-island composite fibers are formed by extruding the insides and joining together, and through a coagulation medium (usually an aqueous coagulation bath for the wet method, air cooling for the dry method and air cooling method for the melting method), the jointed sea-island composite fiber and the sea-island composite fiber are formed, and the arrangement of the islands is adjusted. type composite fiber bundles can be obtained.

The island component spinning dope B is introduced from the island component inlet 9, passes through the island component spinning dope B distribution groove 13, passes from the dope hole 32 through the island component spinning dope B conduit 33 in the switch shaft 38, and passes through the dope hole 34. The island component spinning dope B supply pipe 35 configured between the second distribution plate 15 and the third distribution plate 16 is supplied into the island component introduction hole 28,
Join island component spinning dope A side-by-side.

The sea component spinning stock solution is introduced from the sea component inlet 7, passes through the sea component distribution groove 11, which is composed of the lower half of the pedestal 10 and the upper half of the first distribution plate 14, and then passes through the sea component distribution groove 11, which is made up of the lower half of the pedestal 10 and the upper half of the first distribution plate 14. The component stock solution passes through the hole 20 and the second
Sea component conduit 21 and sea component stock solution hole 2 provided on the distribution plate
A bonding chamber 29 is guided to the bonding chamber 29 through a spacer 17 (usually a metal ring is used).
In this step, the island component spinning dope extruded from the island component introducing holes 28, 40 is enveloped in the sea component spinning dope, while the two component spinning dope are joined together and extruded from the nozzles 31, 42 into the coagulation medium. Therefore, mixed sea-island type composite spinning can be performed.

The above-mentioned mixed sea-island type composite fiber spinning and its apparatus are basically similar to the conventional mixed sea-island type composite fiber spinning technology. The mixed sea-island type composite spinning and its apparatus of the present invention are significantly different from the prior art in the following points.

That is, the mixed sea-island type composite fiber bundle obtained by the present invention is one in which island portions 1 having tapered tips 3 are intermittently arranged and joined in the fiber axis direction. It consists of the following structure.

A part of the island component spinning dope passes from the island component chamber 24 through the large island component introduction hole 27 and is then passed through the island component introduction hole 28.
From the island component spinning stock solution B conduit 33 to the stock solution guide hole 34,
The island component spinning dope B that has passed through the island component spinning dope B supply pipe 35 is joined side-by-side and flows into the joining chamber 29, and the remaining part passes from the island component chamber 24 through the island component large conduit hole 39 and is It passes through the large component introduction hole 40 and flows into the joining chamber 29, but at that time the switch 2
5. It is an essential requirement of the present invention that the flow is intermittently interrupted by the switch shaft 38.

Due to this interruption, the flow of the island component spinning dope forms a tapered tip 3 at the time of joining with the marine spinning dope,
A desired mixed sea-island composite fiber bundle is formed.

From the results of numerous experiments conducted by the present inventors, it has been confirmed that the intermittent supply of the island component spinning dope is most suitable at least immediately before bonding of both the sea and island components. This intermittent supply is carried out by the island component inlet 8,
9 or very close thereto, the intermittency of the island portion is poor and it is difficult to obtain the island portion having the tapered tip.

The intermittent supply of the island component spinning dope can be carried out by various means. That is, a stopper, a baffle plate, or the like may be provided in the middle of the island component guide hole 28 and the dope for intermittently interrupting the island component spinning stock solution passing through the stock solution supply pipe 35. In the present invention, the switch 2
5. The island component large guide holes 27, 39 and the stock solution supply pipe 35 are opened and closed by the rotation or rotational vibration of the rotating shaft 38, so that the island component spinning stock solution is intermittently supplied. Its operation will be explained. The switch 25 has a disc shape and is attached to the lower part of the rotating shaft 38 that passes through the center of the switch bearing seat 36, the pedestal 10, the first distribution plate 14, and the second distribution plate 15 and reaches the island component chamber 24. be. The lower surface of the switch 25 is in contact with the island component water introduction holes 27 and 39, and a circular hole plate (FIG. 4 A) and a blade (FIG. 4 (b), other deformed hole plates (Fig. 4 c, d), etc. are installed, and the switch 25
By rotating the spinning dope, the supply of the island component spinning dope is intermittent.

The island component stock solution B supply pipe 35 provided on the bearing side wall 46 connects with the stock solution guide hole 34 provided at a position opposite to the supply pipe 35 at the lower part of the rotating shaft 38 to rotate the rotating shaft 38. Therefore, the supply of the island component spinning dope B is interrupted.

The bonding state of the two components in the island portion is determined by adjusting the positions of the switch 25, the stock solution introduction hole 34, and the stock solution passage hole 26 provided in the rotating shaft 38. Specifically, in Figure 3
If the island component spinning stock solution B supply pipe 35 is located in the θ direction created by CC (radial line connecting the rotation axis center and stock solution passage hole 26) and the horizontal line, the island portions will form a side-by-side junction. radiation
When there are two stock solution introduction holes 34 for each supply pipe 35 in the vicinity of the CC, an island having a side-by-side junction as shown in FIG. 1C is formed. When the switch 25 shown in FIG. 6A is used, it is possible to obtain a mixed sea-island type composite fiber bundle in which side-by-side joints and intermittent portions of one-component island portions are alternately located.

As can be seen in the above example, the joining of the two components in the island part is through the undiluted solution passage hole 26, the island component large guide hole 27,
39, island component spinning stock solution B supply pipe 35, stock solution introduction hole 3
Any side-by-side joint can be formed by various combinations of the relative positions, shapes, and numbers of 4.

The shape of the tapered tip is the blade 44 of the switch 25, or the concentrate passage holes 26, 43, and the island component large guide hole 2.
7, 29, and in response to changes in the opening area that is opened and closed due to the overlap. For example, the stock solution passing holes 26 and 43 of the switch 25 in FIG. 3 show a state in which the island component large guide holes 27 and 39 are fully opened, and a state in which the island component spinning stock solution B supply pipe 35 is fully opened. Rotating axis 3
8 rotates, the island component large conduit holes 27, 39 and the island component spinning dope B supply pipe 35 begin to close,
When rotated 22.5 degrees, both are closed,
The amount of the island component spinning stock solution passing through is 0.

The island component spinning dope flow rate change is controlled by the island component auxiliary groove 45.
(Fig. 6 C, D) can be used in combination to achieve even finer adjustment. Specifically, when the groove width of the auxiliary groove 45 is widened, the island component spinning stock solution increases and decreases rapidly, and when the groove width is made narrow, changes in the stock solution flow at minute flow rates are adjusted.

Even in such a process, the sea component spinning dope is constantly supplied and flows through the joining chamber 24 and through the nozzle dope conduits 30 and 41, so the island component spinning dope forms a tapered tip while forming the sea component spinning dope in the sea component spinning dope. to form a mixed sea-island composite fiber bundle of the present invention.

Note that the island component large guide holes 27 and 39 affect the position of the island depending on their depth; if they are deep enough, both ends of the island will almost coincide, but if they are shallow or the island component guide holes 28 and 40 are In the case where the bonding chamber is directly penetrated, the positions of the tips 3 of the island portions will be slightly shifted back and forth.

The arrangement of the island component guide holes 28 and 40 can be changed depending on the arrangement of the island parts in the sea. When the island parts are arranged so that the island parts do not form the fiber surface, the island component guide holes 28 and 40 may be arranged so as to be located inside the nozzle stock solution conduits 30 and 41 facing each other. The switch 25 and the rotating shaft 38 are rotated by a drive device (not shown) attached to the other end of the same shaft 38. When a large number of mixed-sea-island composite spinning devices are installed, each switch shaft 38 may be driven from the same drive source via a suitable transmission means such as a flexible shaft, belt, gear, or chain.

Example 1 Using a combination of ammonium persulfate and acidic sodium sulfite as a polymerization catalyst, polymerization was carried out at 55°C at the following monomer weight mixing ratio in water adjusted to pH 2.5 with sulfuric acid.
Polymerization was carried out for 5 hours to obtain a polymer.

: Acrylonitrile (hereinafter referred to as AN) = 100 : AN/methyl acrylate/sodium methallylsulfonate = 90/10/1 AN/acrylamide/dimethylaminoethyl methacrylate = 80/10/10 Each polymer was thoroughly dried and heated at 0°C. , was dissolved at a rate of 25 g per 100 c.c. of 69% nitric acid aqueous solution to prepare a spinning stock solution.

The polymer spinning dope is introduced into the island component inlet 8 of the spinning device shown in Figure 2, the polymer spinning dope is introduced into the island component inlet 9, and the polymer is introduced into the sea component inlet 7 of the spinning device shown in Figure 6A. A switch 25 is used, and eight large island component holes 27 forming side-by-side joint island portions are provided, and each large hole has four island component holes. There are eight island component spinning stock solution B supply pipes 35 and eight stock solution introduction holes 34, and they are installed in the same θ direction. On the other hand, there are eight large island component pores that form a single component island.
Each island component has one introducing hole, and is installed in the direction of θ/2.

The rotating shaft 38 rotates at a speed of 30 times/min, and the sea component spinning stock solution A is 1.0 cc/min and the island component spinning stock solution A is 1.2 cc/min.
cc/min, and the island component spinning dope B was supplied to the spinning apparatus at a rate of 0.8 cc/min. Spinning stock solution at -2℃, 35℃
The film was coagulated in an aqueous nitric acid solution, thoroughly washed with water, stretched six times in boiling water, and then dried and heat-relaxed.

The thus obtained mixed sea-island type composite fiber bundle is used as Cevron Green B (registered trademark of EI Dupont).
Boil staining was performed at 100℃ for 60 minutes at 10% owf of
Wash thoroughly with water, then apply acid dye CI, Acid.
Boil staining was performed with Red114 1.0% owf at room temperature at 100°C for 40 minutes.

The mixed sea-island type composite fiber bundle after dyeing exhibited a melange-like and ballworm-like coloring effect with red, black (or pale red), and red-pale red repeating color tones in the fiber axis direction.

Example 2 8 g/min of polyethylene terephthalate with an intrinsic viscosity of 0.65 measured at 35°C in orthochlorophenol was introduced into the island component inlet 8, and 4 g/min of cation-dyable polyethylene terephthalate with the same intrinsic viscosity of 0.70 was introduced into the island component inlet 9. Nylon 6 with an intrinsic viscosity of 1.20 measured at 35°C in mec-cresol at a rate of 4 g/min.
Using the spinning apparatus used in Example 1 heated to 300°C, melt spinning was carried out at a discharge temperature of 280°C to obtain an undrawn yarn of approximately 8 denier. Thereafter, the film was stretched twice using heated rolls kept at 80°C to coat it with oil.

The thus obtained mixed sea-island type composite fiber bundle is
Voile dyeing was performed with Blue E-BL (manufactured by SANDOZ) at 110℃ for 60 minutes, and after thorough washing with water, CIAeid
Boil staining was performed with Red114 1.0% owf at 100°C for 60 minutes at normal pressure. The thus obtained mixed sea-island type composite fiber bundle had a color tone that periodically changed from reddish green to dark green, and the knitted fabric knitted from the fibers had a melange-like or iridescent-like coloring.

[Brief explanation of the drawing]

FIG. 1 is a model diagram of a mixed sea-island type composite fiber bundle obtained by the present invention, showing a cross section in the fiber axis direction, where 1 is a one-component island portion, 2 is a sea portion, 3 is a tapered tip portion, and 4 is a sea component. 5 indicates a side-by-side island portion, and 6 indicates a side-by-side joint portion. FIG. 2 is an example of the mixed sea-island type composite fiber bundle manufacturing apparatus illustrated in FIG.
1 is a sea component distribution groove, 12 is an island component distribution groove, 13 is an island component B distribution groove, 14 is a first distribution plate, 15 is a second distribution plate, 16 is a third distribution plate, 17 is a spacer, 1
8 is a nozzle plate, 19 is a holder, 20 is a sea component guide hole, 21 is a sea component pipe, 22 is a sea component guide hole, 24
is the island component chamber, 25 is the switch, 26 is the stock solution passage hole,
27 is the island component large conduit, 28 is the island component conduit, 29 is the bonding chamber, 30 is the nozzle stock solution conduit, 31 is the nozzle,
32 is a stock solution conduit, 33 is an island component spinning stock solution B conduit,
34 is a stock solution guide hole, 35 is an island component spinning stock solution B supply pipe, 36 is a rotor bearing pedestal, 37 is a seal, 38
39 is the rotation axis, 39 is the island component large conduit, 40 is the island component conduit, 41 is the nozzle stock solution conduit, 42 is the nozzle, 43
3 is a cross-sectional view of the nozzle side taken along the line AA in FIG. 2, and 46 is a radial line. FIG. 4 is a sectional view of the rotating shaft on the nozzle side taken along line BB in FIG. 2. Figure 5 shows B- in Figure 2.
FIG. 3 is a cross-sectional view of the nozzle side, taken along line B, excluding the rotating shaft portion. FIG. 6 shows various model diagrams of the switch 25, in which 44 is a blade and 45 is an island component auxiliary groove.

Claims (1)

[Scope of Claims] 1. Consisting of at least three types of organic polymer substances having fiber-forming ability and having different chemical and physical properties, comprising an island portion in which two types of organic polymer substances are joined side-by-side. A bonded sea-island composite fiber having 1
When spinning a mixed sea-island type composite fiber bundle having a sea-island composite fiber having island parts made of organic polymeric substances, the spinning stock solution constituting the island parts is physically mixed side-by-side and just before sea-island joining. A method for producing a mixed sea-island composite fiber bundle characterized by intermittent supply. 2. The method for producing a mixed sea-island type composite fiber bundle according to claim 1, in which a time lag is placed between opening and closing of the introducing holes that supply the components constituting the island portions, and the intermittent portions of the island components are randomly dispersed. 3. A method for producing a mixed sea-island composite fiber according to claim 1 or 2, in which opening and closing of the guide holes for supplying the components constituting the island portions are performed simultaneously. 4 The opening and closing of the conduit for supplying the components constituting the island part is such that when the side-by-side junction island-forming stock solution conduit is fully open, the one-component island-forming stock solution conduit is closed, and the one-component island-forming stock solution conduit is fully open. The method for producing a mixed sea-island type composite fiber bundle according to claim 1 or 2, wherein the side-by-side bonded island portion-forming stock solution guide hole is closed at the time of . 5. The method for producing a mixed sea-island composite fiber according to any one of claims 1 to 4, wherein the three organic polymeric substances are polymers containing at least 85% acrylonitrile. 6. Claims 1 to 4, wherein the three types of organic polymer substances are polymers selected from the group consisting of polyamide-based, polyester-based, polyvinyl-based, polyolefin-based, and polystyrene-based polymers.
A method for producing a mixed sea-island type composite fiber according to any one of paragraphs. 7 A pedestal having an inlet 7 for the spinning component that forms the sea part and inlets 8 and 9 for the spinning component that forms the island part, an island component guide hole 28 where the two types of island components merge, and a joint that joins both the sea and island components. A mixed sea-island type composite spinning device configured by combining a chamber 29 and a nozzle plate, (a) the inlet ports 7 and 8 are hole groups 20 that form independent flows of a plurality of components, and 2
3, the inlet 9 is connected to the island component spinning dope B conduit 33 in the rotating shaft 38;
5, and by arranging the first distribution plate and the second distribution plate facing each other, an island component chamber 24 is formed.
Switch 2 that can be rotated in contact with the top surface (inlet) of 0
(c) A dope B conduit that is in contact with the bearing side surface (inlet) of the island component spinning dope B supply pipe 35, which is composed of the second distribution plate and the third distribution plate 16, and faces the supply pipe 35; (d) The island component spinning stock solution B supply pipe 35 is connected to the island component introducing hole 28 and is connected to the third distribution plate and its lower part. The nozzle plate 18 is provided such that a joining chamber 29 is provided between the nozzle plate 18 and the nozzle plate 18, and the nozzles 31 and 42 are arranged at positions facing each pair of the island component introducing holes 28 and 40. , A mixed sea-island type composite spinning device consisting of a combination of the above elements. 8 The rotation of the switch was installed on the spinning device 1
8. The mixed sea-island composite spinning apparatus according to claim 7, which is rotated by a transmission means such as a gear, a chain, a belt, or a flexible drive shaft from a rotating shaft.