JPH0646726A - Fishing line - Google Patents

Abstract

PURPOSE:To obtain a fish line which has a higher strength than that of conventional nylon fishing lines and high specific gravity with reduced staying on the water surface. CONSTITUTION:The fishing line is produced by mixing fine metal lines with high-tenacity synthetic resin fibers and intertwining them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high strength fishing line for fishing.

[0002]

2. Description of the Related Art A fishing line that has been widely used in the past is made of nylon. In addition to this, a braided wire of metallic tungsten or a braided wire of tungsten provided with a synthetic resin core material is used. Has been prized. Also, a tungsten braided wire coated with a heat-adhesive synthetic resin has been developed (JP-A-3-224428).

The above-mentioned conventional nylon fishing line is widely used because it is relatively inexpensive and easy to handle, but its strength is not so large, which limits its use. It has higher strength and less elongation. There was a strong demand for fishing lines.
On the other hand, a fishing line using a braided wire of tungsten is excellent in strength, but since a tungsten wire is generally expensive,
The higher the amount used, the higher the price, and it was not suitable for sea fishing where a long thread is required.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a fishing line which is higher in strength than conventional nylon fishing lines, has a high specific gravity, and is less likely to cause so-called dandruff even in the presence of tidal current at a relatively low cost. The task is to do.

[0005]

In order to solve the above problems, the present invention employs the following configurations. That is, the gist of the fishing line according to the present invention is a fishing line composed of a braided wire obtained by mixing and braiding metal thin wires and high-strength synthetic resin fibers. Hereinafter, a detailed example will be described.

As the fine metal wire used in the present invention, one having appropriate tensile strength and flexibility is suitable, and examples thereof include stainless steel wire, tungsten wire, copper wire and other fine metal wires. The thickness of the thin metal wire depends on the application, but is usually several tens to several hundreds of microns. As the high-strength synthetic resin fiber, aromatic polyester fiber, aromatic polyamide fiber or the like can be used. A high-tensile-strength fiber of this type bundled with an appropriate wire diameter and the metal thin wire are mixed and knitted into a braided wire (blade wire). In this case, it is preferable to alternately combine the fine metal wires and the high-strength synthetic resin fibers in terms of strength, flexibility, uniformity, and the like. Since the fishing line of the present invention is a braided wire rather than a twisted wire, it has excellent flexibility. Further, since it is a braided wire, a wire material such as a metal wire can be put in the core portion if necessary. If a metal wire is placed in the core, the specific gravity increases by that amount, so the weight can be reduced.

Since the fibers of the obtained braided wire may be unraveled as they are, it is preferable that the braided wire is coated with a heat-adhesive resin in order to maintain the convergence. Further, in order to obtain the smoothness of the surface, it is preferable to coat the surface of the braided wire with an appropriate coating such as polyurethane. As the heat-adhesive resin, nylon-based heat-adhesive fibers that are commercially available for heat-adhesion of textiles and the like may be used. It is preferable to use a resin having a melting temperature lower than 200 ° C. as the heat adhesive resin. If a material having a temperature of 200 ° C. or higher is used, the high-strength synthetic resin fiber may deteriorate and the strength may decrease. The amount of the heat-adhesive resin varies depending on the size, type, amount, etc. of the metal thin wire or the high-strength synthetic resin fiber, but the amount is sufficient for convergence and coating, and the harmful pool of the heat-adhesive resin does not occur. Such an amount. Further, as a converging and covering method, a method of putting a heat-adhesive resin in the center to form a braided wire, a heat-adhesive resin and a metal thin wire, a method of rope twisting a high-strength synthetic resin fiber, a metal thin wire, a high strength The synthetic resin fibers and the heat-adhesive resin may be alternately combined and braid-twisted to integrate them, and the heat-adhesive resin may be dissolved and coated through a die held at a predetermined temperature with hot air or the like. By passing through the die in this way, excess heat adhesive resin is squeezed out and removed. The thread passed through the die is cooled and wound up.

[0008]

【Example】

(Example 1) Tungsten wire or stainless steel wire was used as the thin metal wire, and wholly aromatic polyester fiber "Vectran (trademark)" (specific gravity 1.41) manufactured by Kuraray Co., Ltd. was used as the high-strength synthetic resin fiber. , As a heat adhesive resin,
"Elda- (trademark)" manufactured by Toray Industries, Inc. (specific gravity 1.0
8, melting point 110-120 degrees C). The thin metal wire has a thickness of 30 μm, and eight wires were used. Also,
The high-strength synthetic resin fiber had a thickness of 35 denier, and eight fibers were used. In addition to these, a thermoadhesive resin was combined to form a braided wire. The obtained braided wire was processed by the apparatus shown in FIG. When using this device, a spool 3 on which the above-mentioned braided wire 2 is wound is attached to a hanging machine 1, and the braided wire 2 unwound therefrom is passed from a guide roller 4 to a die 5. The die 5 and the braided wire before entering the die are heated to a predetermined temperature by a hot-air type heating device 6 having an electric heater and a fan. Due to this heating, the heat-adhesive resin is melted and softened, and when passing through the die, it is impregnated between the fine metal wires and the fibers of the high-strength synthetic resin fiber to converge the fibers, and at the same time, a part is leached on the surface to make the surface of the braided wire uniform. To cover.

The temperature of the hot air of the heating device 6 is 80 to 250 ° C., preferably 150 ° C., and the temperature of the die 5 is
It was 80 to 150 ° C, preferably 100 ° C. The speed of the twisted wire is 0.5 to 10 m / min, preferably 1 m / min, and the die 5 is a synthetic rubber plate having an inner diameter of 40 to 70 μm depending on the size of the product. I was there. By passing the knitting wire through the hole of the die, excess heat adhesive resin is wiped off. A metal die can also be used as the die.

The thread 2a passing through the hole of the die 5 is circulated in the circulation chamber 7
It was introduced into the cooling tank 8 having the above and cooled. Cooling water is supplied to the circulation chamber 7 through a pipe 9, and the overflowed cooling water is recovered through an outlet pipe 10. The yarn 2a moves in the cooling water through the slits provided in the side wall of the circulation chamber 7 and the cooling tank 8. The yarn in which the heat-adhesive resin was solidified by this cooling was wound around the spool 13 of the winder 12 through the guide roller 11.

The fishing line thus obtained had a smooth surface, but the surface was further coated with a polyurethane resin. This coating was performed by immersing in a molten polyurethane resin and passing it through a die as described above. The obtained fishing line had a thickness equivalent to that of a conventional No. 1 nylon road yarn, but its breaking load was 7 to 9 kg / mm ² , and even if it was thin, it had high strength, and the nylon thread (breaking load 2.4 kg was used. / M
m ²⁾ there are three times more strength than the elongation is small and
It was easy to catch the fish.

Example 2 Next, a fishing line was manufactured by the same method using wholly aromatic polyamide fiber "Kevlar (trademark)" as the high-strength synthetic resin fiber. in this case,
Eight thin metal wires (tungsten wire or stainless steel wire) having a thickness of 30 μm were used, and as high-strength synthetic resin fibers, eight 70 denier fibers were used. The obtained fishing line was a conventional nylon No. 3 road yarn (breaking load 6.
The thickness is equivalent to 5 kg / mm ² ) and the breaking load is 14
(Stainless steel wire) to 16 (Tungsten wire) kg / m
It was m ² .

[0013]

As is apparent from the above description, the fishing line according to the present invention is composed of a braided wire in which metal fine wires and high-strength synthetic resin fibers are mixed and knitted, and therefore, the conventional nylon fishing line is used. The strength is much higher than that of, and it can be manufactured at a relatively low cost by appropriately selecting the type and amount of the thin metal wire. Also, because of its high specific gravity, dandruff is unlikely to occur even in the deep sea where tidal currents flow, and it is easy to hit. In addition, the weight is small and easy to handle. Moreover, it is possible to use it in place of the conventional nylon thread with many weights attached to it, and because it is possible to use a very thin one with high strength, even when using it in a deep place, it is relatively Small reels can be used. It is obvious that this fishing line can be used for purposes other than fishing line, for example, as a string for tying objects or as a thread for net production.

[Brief description of drawings]

FIG. 1 is an explanatory view of a processing apparatus used for manufacturing a fishing line of the present invention.

[Explanation of symbols]

 1 Hanging wire machine 2 Stranded wire 5 Dice 6 Heating device 8 Cooling tank

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Claims (1)

[Claims] 1. A fishing line composed of a braided wire in which a metal thin wire and a high-strength synthetic resin fiber are mixed and knitted.