JP2945913B2 - Fishing line manufacturing method - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a high-strength fishing line for fishing.

[Prior Art] A high specific gravity, high strength fishing line made by knitting a tungsten thin wire into a hollow shape has been proposed (Japanese Patent No. 1202790), and has exhibited excellent performance. There is a problem in that the yarn lacks in flexibility as compared with the yarn, and it is easy for the yarn to be curled or twisted.

In order to improve this, a fishing line in which a core of synthetic fiber is provided inside a round braid made of a tungsten wire and a coating layer is provided outside has been proposed.

[Problems to be Solved by the Invention] However, those in which a core material and a coating layer are provided on a material in which the above-mentioned tungsten wire is made into a round braid are not sufficiently pliable, and a gap between the core material and the tungsten braid during use. In some cases, misalignment is caused, the texture and appearance are deteriorated, and disconnection and entanglement may occur.

In view of the above circumstances, an object of the present invention is to provide a fishing line having high specific gravity, high strength, straightness, and flexibility.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration. That is, the method of manufacturing a fishing line according to the present invention is to manufacture a knitted wire using a core material of a heat-adhesive fiber and a plurality of tungsten wires, and heat the knitted wire at a temperature equal to or higher than the melting point of the core material. By passing through a die, the molten core material is leached out of the outer surface of the knitted wire to obtain a fishing line made of a tungsten knitted wire covered with a heat-adhesive synthetic resin. Hereinafter, a detailed example will be described with reference to specific examples.

The tungsten wire used for the production of the knitted wire is preferably a so-called black wire having graphite of a graphite colloid solution used as a lubricant in the wire drawing process adhered to the surface, but a white wire without such a coating may be used. This tungsten wire is
Although a single wire may be used, a plurality of wires (preferably 2 to 4 wires) are bundled to form a base wire for a knitted wire, and a knitted wire is formed using this, thereby improving flexibility and strength. Above. The number of tungsten wires for forming a knitted wire is suitably from about 8 to about 16, but may be larger in some cases. Furthermore, the braided layer may be formed in two or three layers, but usually only one layer is sufficient. The thickness of the tungsten fine wire is suitably 100 μm or less, more preferably 10 to 70 μm, and still more preferably 10 to 50 μm. And the rigidity increases, and the flexibility decreases. For example, in the case of a fishing line for ayu fishing, it is preferable to use a tungsten wire as thin as possible, for example, a line of 13 to 18 microns.

As the heat-adhesive synthetic resin for coating, a nylon-based heat-adhesive fiber which is commercially available for heat-adhesion of a fiber product or the like may be used. Using the fiber as a core material, the tungsten braid is manufactured and heated to a predetermined temperature to cover the braid with a softened synthetic resin. A specific example of the production process of this fishing line is as follows.

First, a required number of tungsten wires, which are element wires, are wound around a predetermined bobbin, and are knitted by a knitting machine. Next, the obtained winding is coated. FIG. 1 shows an apparatus for this coating, in which a spool 3 on which a tungsten braid 2 is wound is attached to a wire winding machine 1, and the braid 2 drawn out from the spool 3 is passed through a guide roller 4 to a die 5. The die 5 and the knitted wire before entering the die are heated to a predetermined temperature by a hot-air heating device 6 having an electric heater and a fan.

This heating causes the heat-bonded fibers to melt and soften, filling the inside of the knitted wire when passing through the die, and partially leaching into the outer surface of the knitted wire to uniformly cover the outer surface. Thereby, a fishing line having a smooth outer surface is obtained.

The braided wire passing through the die 5 is cooled by a cooling tank 8 having a circulation chamber 7.
It is led to. Cooling water is supplied to the circulation chamber 7 from an inlet pipe 9, and the overflowing cooling water is collected from an outlet pipe 10. Vertical slits 7b, 8b are formed in the side walls 7a, 8a of the circulation chamber 7 and the cooling bath 8, and the knitted wire 2 moves through the cooling water through these slits.

The braided wire cooled by the cooling tank 8 and solidified of the heat-adhesive resin is wound on a spool 13 of a winder 12 via a guide roller 11. Note that the resin may be solidified by a natural cooling (air cooling) system without employing a water cooling system as in the illustrated example. In addition,
It is apparent that various kinds of metal wires, metal stranded wires, metal braided wires, and the like can be coated using the above-described coating apparatus.

[Example] Next, an example of the present invention will be described.

A tungsten braid was manufactured under the following conditions using a braiding machine (Kokubu Tekko round driving braid machine No. 101).

Number of braids 8 sets Weight NO.1 to NO.25 Main rotation speed 80 / min (preferably 60 to 120 rpm) Feed gear 80:15 to 8:30 Tungsten wire used as material for forming braid is 13 microns A bundle of two thin wires each having a diameter of about 18 μm was used.

The obtained knitted wire was coated with a coating device shown in FIG. The thermo-adhesive resin used was a thermo-adhesive fiber “Elder (trade name) yarn” manufactured by Toray Industries, Inc., and had a specific gravity of 1.0.
8. It has a melting point of 110-120 ° C.

The temperature of the hot air of the heating device 6 is 80 to 250 ° C., preferably 150 ° C.
° C, and the temperature of the die 5 is 80 to 150 ° C, preferably 100 ° C.
° C. The speed of the knitting wire is 0.5 to 10 m / min, preferably 1 m / min, and the die 5 has a hole diameter of 40 to 70 μm depending on the size of the product.
A 47-micron diamond die was used.

The fishing line thus obtained had high strength even though it was thin, and because of its large specific gravity, it settled well in water and so-called line dandruff was hard to occur. In addition, it was easy to catch the fish because of little growth. When this line was used for ayu fishing, the thin line made it less resistant to water and the sting ayu could climb the rapids.

[Effects of the Invention] As is clear from the above description, according to the present invention, there is no deviation between the core material and the knitted wire, and the fishing line is excellent in high specific gravity, high strength, straightness and flexibility. Can be manufactured relatively simply and efficiently. Needless to say, this fishing line can be used for purposes other than the fishing line, for example, as a string for tying a thing or a string for producing a net.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of a coating apparatus used in an embodiment of the present invention. 2 ... net, 5 ... die, 6 ... heating device

Claims (1)

(57) [Claims] 1. A knitted wire is manufactured using a core material of a heat-adhesive fiber and a plurality of tungsten wires, and the knitted wire is passed through a die while being heated at a temperature equal to or higher than the melting point of the core material. A method for producing a fishing line, comprising: leaching the core material thus formed on the outer surface of the knitted wire to obtain a fishing line made of a tungsten knitted wire covered with a thermoadhesive synthetic resin.