JPS5891805A - Spinning spinneret device - Google Patents

Abstract

PURPOSE:The titled device capable of spinning various kinds of hollow filaments, or conjugated filaments in multifilaments easily, comprising a spinneret consisting of a triple pipe having a specific structure and an outer pipe part of the spinneret having an introduction hole for a filament-forming component. CONSTITUTION:The introduction hole a of the innermost pipe A of the spinneret 1 is bored straight from the top surface 2 to the bottom surface 3 only in the innermost pipe. The introduction hole a is communicated with the introduction hole p of the top cover 12 of an outer pipe part. The introduction holes b and c at the inner face sides of the at least two other outer pipes B and C are communicated with the opening parts Q and R of the middle layers of the spinneret, and communicated with the introduction hole q of the top cover 12 of the outer pipe part and the introduction hole r of the main body 11 of the outer pipe part respectively. A hollow filament having at least one layer or a conjugated filament having at least two layers can be spun.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spinneret apparatus having multiple Irv spindles. Traditionally, spinnerets with a double-tube structure have been used to spin hollow fibers and first-line yarns, but spinnerets with a triple or more structure become cumbersome, and it is difficult to spin multi-filament yarns from a single spinneret. Met. For example, there is a part of the nozzle of the cap shown in the drawings of f:r% Publication No. 56-6788.

In the case of such a multi-tube structure, by enclosing the multi-tube in 1!1 order, it is possible to construct a 1-metal 44-place system for spinning a single yarn.However, regarding a multi-filament spinneret, Also, a configuration that takes into consideration the distribution of thread-forming components for the multi-thread nozzle hole is essential.

The inventors of the present invention have developed the present invention as a result of extensive research in order to develop a U-type device for spinning one or more hollow fibers consisting of at least one layer, or at least two layers. It's tough to complete.

That is, the present invention is a cap device composed of a multi-tube cap L and a cap outer portion lO, in which only the innermost tube A of the cap has its guide hole a extending from the upper end surface 2 to the lower end surface 3 of the cap. A direct hole is formed, and the guide hole is in communication with the introduction hole p of the outer mantle 10, and the other at least two outer tubes B and C have inner-surface guide holes S and C that are connected to the one tube. It communicates with the gold intermediate layer voids Q and R, and the introduction hole q of the mantle part.
, r. This is a spinneret device for spinning hollow fibers consisting of at least one layer or composite fibers consisting of at least two layers.

The spinneret device of the present invention is shown in FIGS. 1 and 2. FIG. The cap device includes a cap 1. and a cap mantle 10. Only the innermost tube A of this cap has its inlet 2 directly bored from the upper end surface 2 to the lower end surface 31 of the cap. Outer Qils B and C (in the example shown in Figure 2, they consist of the lower part of the cap body)
The basic structure is that the guide holes and C holes on the inner surface of the tube are connected to the intermediate layer cavities Q and R, respectively.8 In other words, the example shown in FIG. 2 is a triple structure with two outer tubes. It is a cap with The multiple tubes are further divided into innermost tube A, outer tube B, and outer tube C.
I, Ct, . . . Cn (Cn is composed of one part of the cap body) and (n-1-2) can be easily made into a double pipe structure. Accordingly, the guide hole on the inner side of each outer tube,
+1! l, el...cn, respectively, intermediate layer gap Q, RI, Rt...R
n Ic is in communication. The upper lid 12 of the mantle part has a cavity P.
(in the example shown in Figure 1, it is annular), the introduction hole p and the conduit 1
3 is installed and communicates with the above-mentioned guideway 9. The intermediate cavity Q communicates with the introduction hole q of the upper cover of the mantle, and the intermediate cavity R (which is annular in the example shown in FIG. 2) is connected to the mantle main body 1.
It communicates with the introduction hole r of No. 1. However, since the configuration of each void and introduction hole is a means of distributing the thread-forming components,
As long as communicating and mutually independent flow paths are formed, the cap, the mantle main body, and the mantle top cover may be arranged in a manner different from that shown in FIG. 1.2. The cross-sectional shape of the main pipe is arbitrary, and can be circular, polygonal, or irregularly shaped, and may be the same or different for each main pipe. Further, the outer part may have a jacket structure for heating.

Table 1 Spinning mode using the apparatus of the present invention [Note 1] As the core liquid 7, gas, liquid, and internal coagulation liquid can be used.

[Note 2] The spinning solution is usually a solution or a melt;
5- It shall be different inside each tube.

[Note 3] A liquid and an external coagulation liquid can be used as the external liquid.

[Note 4] Gas, liquid, and internal coagulation liquid can be used as the internal liquid.

Usage conditions of the spinneret device of the present invention are shown in Table 1,
Describe its effects. As the spinning method, a wet method or a melt method can be adopted, using a yarn-forming substance such as rice cake solution and bath lit solution as the spinning solution. In this embodiment, the spinning solutions inside each tube are different, but the spinning solutions one space apart may be the same. Core fluid, [inner fluid and 1. In this case, gases and liquids can be used, and in the case of wet spinning, internal coagulation liquids may also be used. The external liquid is either a liquid or an external coagulating liquid.Due to the addition of the external liquid, the cooling, evaporation, and coagulation of the spinning liquid are different, and anisotropy can be expressed in the outer layer of the hollow fiber or composite fiber.

In this way, a wide variety of hollow fibers and elm threads can be easily spun, and the spinneret device of the present invention has great effects.
.

6- The hollow fibers and composite fibers obtained by the spinneret fully loaded flNc of the present invention can be used for hollow fibers for diaphragm separation, various composite fibers, decorative fibers, and the like.

[Brief explanation of the drawing]

FIG. 1 (1) is a vertical cross-sectional view of a spinneret device of the present invention. FIG. 2 is a vertical cross-sectional view of an example of a triple tube of the spinneret of the present invention. is the lower end iMi, 1
0 is [1 the whole mantle part, 11 is the mantle main body, and 12 is the outer γ part upper lid. The person is the innermost canal, B, C#:l outer canal, a, b,
The corresponding conductor]L. P, Q, RAP, Ql
r; 13, 14°15 are hollow interior; introduction hole; introduction pipe, respectively. 7-111 ￥12 figure

Claims (1)

[Scope of Claims] 1) A multi-tube, [9] Only the inner tube A of the device, which is composed of a cap 1 and a cap bulge 10, has a guide hole a extending from the top end surface of the cap to the lower end ili.
A hole is directly bored up to L+3, and the guide hole is in communication with the introduction hole p of the mantle portion 10, and at least two other outer tubes B. The guide holes b and c on the inner surface side of C are the gap Q in the middle 19i of the cap.
,R and 1! ! through the introduction hole q of the mantle,
1. A spinneret device capable of spinning a hollow fiber consisting of at least one layer or a polarized yarn consisting of at least two layers, the spinneret device being in communication with r. 2) Double tube with two external reflections. The spinning method according to claim 1, having an eyelet having an III structure.