JPH0797710A - Spinneret for compact fiber - Google Patents

Abstract

PURPOSE:To provide a spinneret for spinning compact fiber, capable of obtaining all good compact fibers by surely contacting stock solutions discharged from plural stock solution discharging holes with each other. CONSTITUTION:This spinneret 4 for spinning compact fiber has plural stock solution discharge holes 3 and 3 vertically to the flat bottom of a stock solution introducing hole 2. The characteristic of this spinneret 4 for spinning compact fiber comprises mutually approaching the tops of these stock solution discharging holes by boring these stock solutions obliquely to the discharge face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a spinneret for contact yarn spinning.

[0002]

2. Description of the Related Art As shown in FIG. 3, a spinneret for spinneret spinning is provided with a large number of undiluted solution introducing holes 2 in a plate-shaped die plate 1, and a plurality of undiluted solution introducing holes 2 are provided on a flat bottom surface. , For example, 2
The stock solution discharge hole 3 is formed by penetrating vertically.

The close contact yarn spun by the close contact yarn spinning die 4 comes into close contact with the undiluted solution discharged from the two undiluted solution discharge holes 3 to form a closely adhered thread 5 having a peanut-shaped cross section as shown in FIG. However, if the spinning pressure during spinning becomes excessively large, the discharge surface 6 will be bulged or distorted, and the stock solutions discharged from the two stock solution discharge holes 3 will not come into close contact with each other. As shown in FIG. May result in the separated defective yarn 8.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is intended to provide a spinneret for spinning a tight-fitting yarn in which the undiluted solution is surely brought into close contact with each other after discharge and no defective yarn is produced.

[0005]

SUMMARY OF THE INVENTION To solve the above problems, a spinneret for spinneret spinning according to the present invention has a spinneret for spinneret spinning which has a plurality of stock solution discharge holes vertically on the flat bottom surface of the stock solution introducing hole. In the above method, the stock solution discharge holes are punched obliquely with respect to the discharge surface, and the tips thereof are brought close to each other.

[0006]

As described above, in the spinneret for contact yarn spinning of the present invention, a plurality of stock solution discharge holes are formed obliquely with respect to the discharge surface and the tips are brought close to each other. The discharged undiluted solution surely comes into contact with and adheres to each other, so that a good adhesion thread can be obtained.

[0007]

EXAMPLE FIG. 1 shows an example of a spinneret for spinning a close contact yarn according to the present invention.
To explain, the inner diameter is 50 mm, the outer diameter is 60 mm, the depth is 10 mm, and the plate-shaped base plate 1 has a thickness of 0.4 mm.
m, depth 0.35 mm, bottom diameter 0.28 mm, undiluted solution introduction hole 2 is 1.0 mm
1000 pieces are arrayed at intervals, and two stock solution discharge holes 3'having an inner diameter of 0.05 m are formed on the flat bottom surface of each stock solution introduction hole 2 in an amount of 0.
The holes are drilled symmetrically at a distance of 05 mm and at an angle of 15 ° with respect to the discharge surface 6, and their tips are brought close to each other with a spacing of 0.024 mm.

When the contact yarn was spun by the contact yarn spinning spinneret 4'of the embodiment thus constructed, the contact yarn 5 having a good peanut cross section was obtained as shown in FIG. This is because the undiluted solution discharge hole 3'is punched obliquely with respect to the discharge surface 6 and the tip thereof is brought close to it. Therefore, immediately after the undiluted solution 7 is discharged from the undiluted solution discharge hole 3 ', it surely comes into contact with and adheres to it. It is nothing but a blank. In the above embodiment, the stock solution discharge holes 3'are two, but the stock solution discharge holes 3'may be three or more.

[0009]

As described above, according to the spinneret for spinneret spinning of the present invention, the undiluted solution discharged from the plurality of undiluted solution discharge holes surely comes into close contact with each other, so that a good intimate thread can be obtained. However, there are great things that contribute to quality improvement.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a spinneret for spinneret spinning of the present invention.

FIG. 2 is a view showing a close contact yarn spun from a stock solution discharge hole of a close contact yarn spinning die of FIG.

FIG. 3 is a cross-sectional view showing a conventional spinneret for spinning a contact yarn.

FIG. 4 is a cross-sectional view showing a good adhesion yarn spun from the spinneret of FIG.

5 is a cross-sectional view showing a defective yarn spun from the spinneret of FIG.

[Explanation of symbols]

 1 Mouthpiece 2 Undiluted solution introduction hole 3'Undiluted solution discharge hole 4'Spinner for spinneret spun yarn 5 Adherent yarn 6 Discharge surface 7 Undiluted solution

Claims (1)

[Claims] 1. A contact spinneret having a plurality of undiluted solution discharge holes vertically formed on a flat bottom surface of the undiluted solution introduction hole, wherein the undiluted solution discharge hole is formed obliquely with respect to the discharge surface. A spinneret for closely adhering yarn, characterized in that the tips are brought close to each other.