JPH022967B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spinneret device for obtaining a composite yarn having a special structure among composite yarns.

There are various types of composite yarns, such as sheath-core type composite yarns, side-by-side type composite yarns, and split type composite yarns.These composite yarns have uniform physical and chemical performance in the longitudinal direction, In other words, there has been a demand for composite yarns that have uniform bonding ratios.

However, in recent years, due to consumer demand for a wide variety of fibers, in addition to the conventional uniform fibers, there are fibers with special structures with uneven physical and chemical properties that vary in yarn, such as bulky fibers such as natural wool. There is a need for fibers that are taut and have good covering power, have excellent properties such as extensibility and compression resilience, and are easily recovered by wetting, steam treatment, etc., and are equivalent to natural fibers. There is a demand for the development of a spinneret device that can industrially mass-produce.

In order to meet such demands, the present invention has developed a spinneret device that can industrially mass-produce fibers that are substantially equivalent to natural fibers as a result of testing and research.

The spinneret device according to the present invention will be explained below with reference to FIG. 1. Reference numeral 1 denotes a cylindrical holder having a locking ring 2 on the inner peripheral edge of the tip, and a core component and a sheath component are compositely discharged from the tip of this holder 1. A spinneret plate 4 with spinning holes 3 is arranged. On top of this spinneret plate 4, a core component flow hole 6 located above the spinning hole 3 and a sheath component flow hole 7 on the side thereof are provided via a Teflon-treated annular spacer 5, and a blind hole is provided in the center. A distribution plate 9 having a circular recess 8 is arranged. An eccentric cam 11 provided at the lower end of the rotary rod 10 is incorporated into the circular recess of the distribution plate 9. Above the distribution plate 9 is an auxiliary distribution plate 13 which has a core component distribution hole 6', a sheath component distribution hole 7' on the side thereof, and an insertion hole 12 for the rotary rod 10 in the center. A rotary rod 10 is inserted through the hole 12, and the eccentric cam 11 is prevented from coming off. A core component inlet 14 is provided on the auxiliary distribution plate 13.
A spinning dope introduction/distribution plate 19 includes an annular recess 15 having an annular recess 15 and an annular recess 17 having a sheath component introduction port 16, and has an insertion hole 18 for the rotating rod 10 in the center thereof.
The rotating rod 10 is inserted through the insertion hole 18 and arranged. Incidentally, the rotating rod 10 is adapted to be rotated by a rotating device (not shown).

In order to spin a composite yarn using the spinneret device of the present invention configured as described above, the spinning dope for the core component is introduced into the annular recess 15 from the core component inlet 14 of the spinning dope introduction distribution plate 19, and the sheath component is A spinning dope for the sheath component is introduced into the annular recess 17 through the inlet 16 .
The spinning dope for the core component introduced into the annular recess 15 enters the core component distribution hole 6 of the distribution plate 9 through the core component distribution hole 6' of the auxiliary distribution plate 13, and passes through the tapered supply hole 6a to the spinneret plate. 4 to the spinning holes 3. The sheath component spinning dope introduced into the annular recess 17 enters the inside of the annular spacer 5 through the sheath component flow holes 7' of the auxiliary distribution plate 13 and the sheath component flow holes 7 of the distribution plate 9, and from there. Spinning hole 3
There will be an influx into As a result, the spinning stock solution for the core component, which is being supplied toward the spinning hole 3, is wrapped in the spinning stock solution for the sheath component in the spinning hole 3, and a sheath-core type composite yarn is discharged and spun from the small-diameter discharge hole 3a. will be done. At the same time as the spinning operation of this composite yarn is started, the spinneret device of the present invention rotates the rotating rod 10 by a rotating device (not shown), and the eccentric force cam 11 at the lower end is rotated.
The distribution plate 9 is caused to revolve by the amount of eccentricity. As a result, the core component distribution hole 6 of the distribution plate 9 revolves around the axis of the spinning hole 3 of the spinneret plate 4 as a common axis, so that the composite yarn discharged and spun from the discharge hole 3a of the spinning hole 3 is Spiral-shaped core component 2 as shown in Figure 2
The composite yarn 22 has a special cross-sectional structure in which the sheath component 21 covers the yarn.

As shown in FIG. 3, this composite yarn 22 has a core component 20 at a different position no matter where it is cut, so it exhibits random crimpability and the gloss or color tone of the yarn changes. In addition, since the core component 20 has a spiral shape, it has high crimpability, is bulky, has good covering power, has excellent heat retention, and has excellent elasticity and anti-shrinkage resilience. .

As detailed above, according to the spinneret device of the present invention, it is bulky and has good covering power almost equivalent to natural fibers, has excellent heat retention, and has excellent stretchability, anti-shrinkage resilience, etc. Moreover, it has the excellent effect that it can be easily recovered by humidification, steam treatment, etc., and that it can industrially mass-produce a composite yarn having a special cross-sectional structure that exhibits a unique color tone.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the spinneret device of the present invention, FIG. 2 is a front view of the composite yarn spun by the spinneret device of the present invention, and FIGS. 3 a, b, and c are the composite yarns of FIG. 2. FIG. 1... Cylindrical holder, 2... Locking ring, 3...
...Spinning hole, 4... Spinneret plate, 5... Annular spacer, 6, 6'... Core component flow hole, 7, 7'...
Sheath component circulation hole, 8...Circular recess, 9...Distribution plate,
10... Rotating rod, 11... Eccentric cam, 12, 18
... Rotating rod insertion hole, 13 ... Auxiliary distribution plate, 14
... Core component introduction port, 15 ... Annular recess, 16 ...
Sheath component introduction port, 17... Annular recess, 19... Spinning stock solution introduction distribution plate, 20... Core component, 21... Sheath component, 22... Composite yarn.

Claims (1)

[Claims] 1. A spinneret device for spinning composite spinning solutions having at least two types of physical and chemical properties into a sheath-core shape, which is equipped with a spinning hole at the tip of the holder for discharging a core component and a sheath component in a composite manner. A spinneret is disposed on the spinneret plate, with a core component flow hole positioned above the spinning hole via an annular spacer, a sheath component flow hole on the side thereof, and a blind circular recess in the center. An eccentric cam provided at the lower end of the rotary rod is incorporated into the circular recess of the distribution plate, and rotation of the rotary rod causes the distribution plate to revolve by the amount of eccentricity of the eccentric cam. A spinneret device configured to.