JPH057254Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a composite spinneret device that efficiently produces side-by-side type two-layer composite fibers, and more specifically, it relates to a composite spinneret device that efficiently produces side-by-side type two-layer composite fibers. The present invention relates to a square composite spinneret device for manufacturing side-by-side two-layer composite fibers with high productivity by overlapping a distributor and a square spinneret to form an integral structure.

(Prior Art) In order to impart self-crimping ability to synthetic fibers, a method is used in which two types of polymers having different heat shrinkage rates are pasted together side-by-side, spun, and then heat-treated. On the other hand, when imparting functionality such as antistatic properties to synthetic fibers, a method has also been proposed in which a normal polymer and a functional polymer are laminated side-by-side and then spun.

By the way, examples of composite spinnerets used in manufacturing these side-by-side type composite fibers include Utility Model No. 2167, Utility Model Publication No. 44-1986,
No. 31289, etc., the structure is such that the distributor is housed in a circular housing and then the base plate is screwed and tightened to seal the spinning dope from leaking, and the structure of the spinneret device itself is Because of the complexity of the device, it is difficult not only to manufacture it, but also to assemble or disassemble the device.If the device is handled roughly and becomes distorted, it will become even more difficult to assemble and disassemble it, and the seal will be damaged. There are many problems with this, such as causing the spinning dope to leak from the tube.

On the other hand, apart from these, Utility Model Publication No. 44-18008 proposes a rectangular composite fiber spinning device, in which two types of component plates are stacked alternately and the spinning holes are connected to adjacent component plates. This makes assembly and disassembly of the device even more complicated, and although it is possible to clean it without disassembling it,
The cleaning effect is insufficient, and spinning stability during re-spinning tends to deteriorate.

Therefore, there has been a strong desire to develop a composite spinneret device that is simply constructed so that it can be easily assembled and disassembled, and that can efficiently produce side-by-side type composite fibers.

(Problems to be solved by the invention) The conventional side-by-side composite fiber spinneret device has a complicated structure, and requires time to assemble and disassemble. If the position shifts, problems may occur such as leakage of the spinning solution or problems such as the spinning solution not being properly pasted side-by-side.

As a countermeasure, it may be possible to clean the spinneret device without disassembling it, but in this case, the structure of the device is complex and the cleaning effect will be insufficient, resulting in poor spinning stability during re-spinning. The problem is that it gets worse.

Therefore, an object of the present invention is to solve the above-mentioned problems of the side-by-side type conjugate fiber spinneret apparatus and to provide an apparatus that can produce side-by-side type conjugate fibers in an industrially advantageous method.

(Means for Solving the Problem) Therefore, the present invention has been developed to provide a rectangular open box-shaped distributor having passages for supplying two different kinds of stock solutions, and a plurality of hole rows for introducing stock solutions for different kinds of stock solutions. A plurality of rectangular plate-shaped perforated distributors each having a plurality of slits, and a plurality of rectangular plate-shaped perforated distributors each having a large number of slits for introducing different kinds of stock solutions at the same time and integrated It consists of a rectangular spinneret having a large number of rows of spinning holes for spinning, and the stock solution introduction holes of the rows of holes are provided with their positions shifted for each different type of stock solution, and the Plate-shaped perforated distributors and plate-shaped slit distributors are arranged in a stacked manner alternately so that the rows of holes and the slits match, and the density of the holes and the density of the slits gradually increase. A square composite spinneret device is constructed, in which the spinneret is disposed on top of the spinneret and the whole is fixed in a removable manner, and this is used as a means for solving the above-mentioned problems.

(Function) The two types of stock solutions introduced into the open box-like distributor are distributed through the respective passages to the holes of the first-layer plate-like perforated distributor, and then passed through the holes in the plate-like perforated distributor above. The slits are distributed to the corresponding slits of the slit distributor. Each stock solution introduced into each of the slits is further distributed to the next layer of slits through each of the holes in the plate-like perforated distributor in the upper layer, which has a larger hole density. At this time, the different kinds of stock solutions were introduced alternately into adjacent slits, and the adjacent different kinds of stock solutions were introduced into each hole row of the spinneret arranged in the uppermost layer.
Different stock solutions are simultaneously introduced through the two slits, and the two are spun out from each spinning port in a state where they are stuck together.

The number of distributions of the stock solution is determined by the number of plate-like distributors.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a sectional view of a square composite spinneret device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same device.

In both figures, 1 is a rectangular box-shaped distributor having passages 1A and 1B for introducing two kinds of stock solutions A and B through a partition, and each passage 1A, 1
Each of the stock solutions A and B is introduced into B from the outside. Reference numeral 2 denotes a plate-shaped distributor having the same planar shape as the box-shaped distributor 1, and two hole rows 2A each having three holes corresponding to each of the passages 1A and 1B. 2B is provided. The hole arrangement of each hole row 2A, 2B has the same hole spacing, and the phases are shifted by 1/2.

Reference numeral 3 denotes a rectangular plate-shaped distributor having the same planar shape as each of the aforementioned distributors 1 and 2, and this distributor 3 is perpendicular to each of the hole rows 2A and 2B of the perforated distributor 2. A plurality of slits (six in the illustrated example) are formed so as to correspond to each hole.

Reference numeral 4 denotes a plate-shaped plate having the same planar shape as each of the above-mentioned distributors 1, 2, and 3, which has three holes to form a hole row corresponding to each of the slits 3A and 3B of the distributor 3 having the slits. , and each hole has rows of holes 4A, 4A, 4A, 4B, 4 through which different stock solutions are introduced.
B and 4B are formed with different phases for different stock solutions.

Reference numeral 5 denotes a square plate-shaped distributor having a plurality of slits, each of which is connected to each hole row 4A, 4B of the perforated distributor 4.
A plurality of holes (six in the illustrated example) are formed so as to be orthogonal to each other and corresponding to each hole.

Reference numeral 6 denotes a rectangular plate-shaped spinneret having the same planar shape as each of the above-mentioned distributors, and as is clear from FIG. A plurality of rows (five rows in the illustrated example) are formed in this manner. The spinning holes are formed in two stages: a large diameter hole facing the adjacent slits 6A and 6B of the distributor 5 having the slits on the back side of the nozzle, and a small diameter hole continuing from this hole to the surface. ing.

The device of this embodiment is obtained by sequentially stacking and fixing each of the distributors 1 to 5 and the spinneret 6 using fixing means such as bolts.

In order to obtain side-by-side type composite fibers using this device, two different stock solutions A and B are introduced into a rectangular open box-shaped distributor 1 having two passages 1A and 1B. hole row 2
When passing through the square plate-shaped perforated distributor 2 having the holes A and 2B, the one passage 1
A into the corresponding hole row 2A, and from another passage 1B into the corresponding hole row 2B.

Many slits 3 from the distributor 2
When the two stock solutions A and B pass through the rectangular plate-shaped distributor 3 having A and 3B, they flow from the hole row 2A to the slit 3A and from the hole row 2B to the slit 3B. Furthermore, the two kinds of stock solutions A and B are passed from the distributor 3 to a large number of hole arrays 4A and 4B.
A slit 3 is inserted into a rectangular distributor 4 having a
A flows into the hole row 4A, and from the slit 3B flows into the hole row 4B. The two kinds of stock solutions that have passed through the distributor 4 are further introduced into a rectangular plate type distributor 5 having a large number of slits 5A, 5B arranged orthogonally to the hole rows 4A, 4B.

The two stock solutions A and B that have passed through the distributor 5 enter the spinning hole of the rectangular plate-shaped spinneret 6 so as to be combined, are pasted side-by-side, and are spun out from the same spinning hole. .

Each of these distributors 1, 2, 3, 4,
Since the spinneret 5 and the spinneret 6 are formed into the same rectangular shape, it is easy to align them. Its disassembly is also easy.

In the above embodiment, a rectangular shape was introduced as the square shape, but it will be understood that the shape does not necessarily have to be rectangular and other shapes can be adopted.

(Effects of the invention) As explained above in detail, according to the invention, everything is formed into a square shape and the structure of each concentrate distributor is simple, so alignment between each member is easy. Therefore, it is easy to assemble and disassemble. On the other hand, the assembled device is effective as an integrated structure, and can efficiently produce side-by-side type composite fibers that are precisely bonded together.
Further, by making the spinneret square, the number of spinneret holes can be further increased.

[Brief explanation of the drawing]

The drawings schematically show a typical embodiment of the present invention, in which FIG. 1 is a sectional view of a square composite spinneret device, and FIG. 2 is an exploded three-dimensional view of the same device. Explanation of main parts of the figure, 1 to 5...distributor, 6...spinneret, 2A, 2B, 4A, 4
B...hole row, 3A, 3B, 5A, 5B...slit.

Claims (1)

[Scope of utility model registration request] A rectangular open box-shaped distributor having a passage for supplying two different types of stock solutions; a plurality of square plate-shaped perforated distributors having a plurality of hole rows for introducing stock solutions for different types of stock solutions; Similarly, a plurality of rectangular plate-shaped slit distributors each having a large number of slits for introducing different stock solutions respectively, and a square spinneret having a large number of spinning hole rows for simultaneously introducing different stock solutions and spinning them together. The stock solution introduction holes in the hole array are provided at different positions for different stock solutions, and the plate-like perforated distributor and the plate-like slit distributor are arranged on the open box-like distributor. The spinnerets are arranged in layers alternately so that the rows of holes match the slits, and the density of the holes and the density of the slits increase in sequence, and the spinneret is placed on top of the spinneret, and the whole is fixed so that it can be disassembled. A square composite spinneret device characterized by: