JPS59173306A - Spinneret - Google Patents

Abstract

PURPOSE:To obtain yarns of stable good quality, by providing an annular ring on the tip peripheral edge of a spinneret holder and plural paths for passing a treating solution perforated from the side barrel part to the central tip end adjacent to the respective spinneret plates. CONSTITUTION:A spinneret having an annular ring 12, protruding from the spinning surfaces (2a) of spinneret plates 2, and provided on the tip peripheral edge of a spinneret holder 3' for preventing a damage, e.g. dent or scratch, on the spinning surfaces (2a) of the spinneret plates 2 and further plural paths 13 for passing a treating solution provided from the barrel part (3'a) of the spinneret holder 3' to the central tip surface (3'b) adjacent to the respective spinneret plates 2. Thus, a spinning solution spun through spinning holes 1 is reacted and coagulated sufficiently and stably with the treating solution, passing continuously through the paths 13, and flowing out of the side barrel part (3'a) of the spinneret holder 3' to the periphery of the central tip surface (3'b). Thus, the aimed yarns of stable good quality can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spinneret, in particular a spinneret plate having a large number of fine spinning holes, which is fitted and fixed into a spinneret boulder, and is mainly used in a wet spinning method. Regarding improvements.

A spinneret consisting of a spinneret plate having a large number of fine spinning holes or a number of spinnerets fitted and fixed in a spinneret holder is used to disperse the spinning pressure applied to each spinneret plate. The force is small, so even if the spinneret plate is thin, there is little deformation due to the required spinning pressure. Furthermore, since the plate thickness can be reduced, for example, when the cap material is made of expensive noble metal, the weight can be reduced, resulting in an inexpensive cap. Furthermore, since there is sufficient space between each spinneret plate fitted and fixed in the spinneret holder, the processing liquid can be spread evenly, unlike the conventional large spinneret plate with many spinning holes. Because it is fully wetted with the undiluted solution, it has the advantage that the uncoagulated threads are less likely to stick together.

By the way, in the conventional spinneret, as shown in FIG. 1, a spinneret plate 2 having a large number of spinning holes 1 is fitted and locked into a through hole 5 with a large diameter screw hole 4 deeply bored in a spinneret holder 3. A screw 7 having an introduction hole 6 is screwed into the tapped hole 4 to hold and fix it.

In a spinneret with such a configuration, the spinning surface 2a of the spinneret plate 2 protrudes from the tip end surface of the spinneret holter 3, so that during spinning operations or when handling the spinneret 8, scratches 5 may occur on the spinning surface 2a. If such damage occurs, the opening shape of the spinning hole 1 may be deformed, or the spinning hole 1 may be closed, rendering it unable to function as a spinneret. .

For this reason, a spinneret 8' has been considered in the past, as shown in FIG. Since the reaction range between the stock solution and the processing solution (acid solution) on the spinning solution side becomes local (limited range), the concentration of the processing solution decreases abnormally and the processing progresses./11. ! It was difficult to obtain yarn of stable quality.

The present invention has been made to eliminate such problems.
Spinning 1: The spinning surface of the gold plate should be protected from damage such as scratches and abrasions during spinning operations and when handling the spinneret, and the spinning stock solution should be able to react stably with the processing solution to ensure stability. We have developed a spinneret that allows us to obtain high-quality yarn.

Hereinafter, an embodiment of the spinneret according to the present invention will be described with reference to FIGS. The spinneret plate 2 is fitted and locked into a through hole 5 with a large diameter screw hole 4, and a screw 7 having an introduction hole 6 is screwed into the screw hole 4, thereby holding and fixing the spinneret plate 2 to the spinneret holder 3'. There is. There is a surrounding wall 9 around the base end surface (upper surface in the figure) of the cap holter 3'.
A stock solution introduction cylinder 11 is screwed to this surrounding wall 9. Tip surface of cap holder 3' (lower surface in the figure)
An annular ring 12 protruding from the spinning surface 2a of the spinneret plate 2 is provided on the periphery. Therefore, a plurality of through passages 13, five in this example, for processing liquid distribution are bored from the side body part 3'a of this spinneret holder 3' to the center end face 3'b adjacent to each spinneret plate 2. ing.

As detailed above, the spinneret of the present invention has a spinneret holder 3.
Since an annular ring 12 that protrudes from the spinning surface 2a of the spinneret 2 is bored on the periphery of the tip surface of the spinneret plate 2, the spinning surface 2a of the spinneret plate 2 will not be scratched or scratched during spinning operations or when handling the spinneret. No damage will occur. Still, the space around the spinning surface 2a of the spinneret plate 2 is significantly expanded compared to the conventional spinneret shown in FIG. part tip surface 3
Since a plurality of processing liquid distribution passages 13 are provided extending from 'b to
The stock solution spun from the 14-sided spinning hole 1 continuously follows the through path 13 and flows out from the side body 3''a of the spinneret boulder 3 to the center tip surface 3'b, and is sufficiently mixed with the processing solution. In addition, since it reacts and coagulates stably, there is no abnormal drop in the concentration of the processing solution, and there is no local increase in the processing $j, a degree, resulting in stable and high quality yarn. There are excellent effects such as being able to obtain

[Brief explanation of drawings]

1 and 2 are partial longitudinal sectional views of a conventional spinneret, respectively. FIG. 3 is a longitudinal sectional view showing an embodiment of the spinneret of the present invention. FIG. 2-----Spinneret plate, 3'-- Spinneret holder, 12--Annular link, 13--Through passage for processing liquid distribution. Applicant Tanaka Kikinzoku Kogyo Co., Ltd.

Claims (1)

[Claims] In a spinneret in which a large number of spinneret plates are fitted and fixed in a spinneret holder, an annular link that protrudes beyond the spinning surface of the spinneret plate is bored at the periphery of the tip 01111 surface of the spinneret holder, and the side of the spinneret holder is A spinneret characterized in that a plurality of passages for distributing processing liquids are drilled from the body to the adjacent center light ζ11.1 surface of each spun yarn.