JPH0763287B2 - Fishing line - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fishing line for fishing, and particularly to a fishing line made of metal fiber having high strength.

(Prior Art) Conventionally, as a generally known fishing line,
In recent years, synthetic fiber fishing lines made of polyamide, polyester, polyvinylidene fluoride resin, etc., and metal fiber fishing lines made of stainless steel, tungsten metal, etc., are known.

Although various characteristics are required for the fishing line depending on the type of fishing and the fishing method, it is generally desirable that the fishing line is thin and has high strength.

Comparing a synthetic resin fishing line and a metal fiber fishing line, the former is flexible and excellent in transparency, but it is usually low in tensile strength and inferior in that it easily stretches, and the latter is difficult to stretch. Although it is excellent in tensile strength, it is inferior in that it is rigid and opaque.

As described above, since the synthetic fiber fishing line and the metal fiber fishing line retain their unique properties, the present situation is that they are used in combination in order to utilize these properties.

As mentioned above, since the metal fiber fishing line has a low elongation,
It is preferably used for fishing that requires sensitive catching of fish's snails, and its high tensile strength makes it possible to make fishing tackle with a fishing line thinner than synthetic fiber fishing line. The point that a thin line can be used in the fishing line is
It is most suitable for fishing in rapid rivers and in fast-flowing oceans. That is, if the fishing line is thick, the water flow resistance in water becomes large, so that the fishing tackle is easily swept and it is difficult to throw the fishing tackle at a desired point. In addition, the thin fishing line has an advantage that it can cover the point that the fishing tackle is easily visible due to the opacity, which is a drawback of the fishing line made of metal fiber.

The ultimate type of fishing line is thin, flexible, and strong, but the tensile strength of current metal fiber fishing line is 140-150 kg / mm ² for stainless metal fiber fishing line, and 135-for tungsten metal fiber fishing line.
It is about 145 kg / mm ² , and the tensile strength of nylon 6 fishing line, which is a typical fishing line of synthetic fiber, is about 70-100 kg / mm ² , so although it has about 1.5 times the strength, As a result, they long for the emergence of higher strength fishing lines.

On the other hand, Japanese Utility Model Laid-Open No. 60-116872 proposes a fishing line composed of a thin wire or a thin strip of an amorphous alloy.

(Problems to be solved by the invention) However, although the above-mentioned fishing line made of amorphous alloy thin wires or strips has high strength, this fishing line is made of monofilament and has a large bending hardness (stress). ， It was not supple to the touch and lacked flexibility.

(Means for Solving the Problems) The inventors of the present invention have conducted intensive studies for the purpose of providing a fishing line that is supple to the touch, flexible, thin, and strong, and as a result, bundled a plurality of high-strength amorphous metal filaments. The inventors have found that the above objects can be achieved by processing, and have reached the present invention.

That is, the present invention provides an amorphous metal multi-filament fishing line characterized by comprising an amorphous metal filament, comprising three or more filaments, twisted, and coated with a synthetic resin. .

Amorphous metal is a metal with an amorphous structure in which the atoms that compose the material are disordered by quenching and solidifying the molten metal. The features of the metal are that it has excellent corrosion resistance and toughness. Since the fishing line is used in water or seawater, it can be said that it is optimal to use an amorphous metal having excellent corrosion resistance and toughness.

In the present invention, the composition of the amorphous metal suitable for a fishing line having excellent corrosion resistance and toughness is mainly composed of one or more of Fe and Co, one or more of Cr, Nb and Mo, and Si, B, C, P, N, Al, G
It is composed of one or more of e, and the amount of Fe, Co, Cr, Nb, Mo is 65-90.
In the atomic% range, the content of Cr, Nb, and Mo should be the same as that of Fe, Co, C
0.5 to 15 atomic% of the total amount of r, Nb, Mo, and Si, B, C, P, N, A
l, 10 to 35 atomic% of Ge content. In the present invention, when the content of these metal atoms is out of the composition range, the obtained amorphous metal is inferior in corrosion resistance and easily crystallized to cause filament breakage during spinning,
Spinning tends to be very difficult. Another method for producing an amorphous metal filament is disclosed in JP-A-57-
52550 and JP-A-57-79052 are known.

The number of constituent filaments of the amorphous metal multifilament fishing line of the present invention is obtained by twisting three or more filaments.
The reason for twisting is that amorphous metal is a very hard metal and its Vickers hardness is 900 to 1100 DPN, and the Vickers hardness of piano wire, which is generally said to be 700 to 800
Greater than DPN. Therefore, if an amorphous metal filament is used as a fishing line as a monofilament, it lacks flexibility. The fishing line requires a certain amount of waist, but a certain amount of waist does not entangle the fishing tackle. If the waist is too strong, the fish will not catch easily, which is not preferable. When a thin amorphous metal filament is twisted, it becomes a very flexible fishing line. The number of monofilaments to be twisted is 3 or more, particularly 7 or more are preferable, 49 is the maximum packing density, the cross section is almost circular, and the appearance of the obtained fishing line is beautiful. If the number of filaments is 2,
Since the obtained fishing line has a flat cross section, the water flow resistance in water becomes large and the line sways, which is difficult to handle.

The optimum number of twists is N = (74 ÷ P) × 1.1 to (74 ÷ P) × 0.9 (T / M), where N is the number of twists in the case of 7 twists, where P is the finished diameter of the twisted wire ) Can be obtained from the formula. In that case, the number of twists is (74
If it is larger than ÷ P) × 1.1, kinks are likely to occur, and the twisting cost becomes high. Also, (74 ÷ P) × 0.
When it is smaller than 9, the gap between the single threads is generated, the quality of the fishing line is deteriorated, and the single threads at the cut portion are likely to be dispersed.

The thinner the amorphous metal filament is, the more flexible it is, but it is very difficult to obtain a filament having a diameter of 100 μm or less by melt spinning. However, if a filament having a diameter (120 to 130 μm) that can be melt-spun stably is obtained and then cold die drawing is performed, a filament having a diameter of about 15 μm can be easily obtained. In addition, since the filament is very hard, it is easy for kinks to occur in the twisted wire after it is twisted. To prevent this kink, kink can be easily prevented by heat setting the stranded wire at a temperature 50 to 150 ° C lower than the crystallization temperature of the amorphous metal. On the other hand, heat setting above the crystallization temperature is not preferable because the strength may decrease.
Further, even in the case of heat-set amorphous metal stranded wire, if cut with scissors or the like, the single yarn at the cut end is likely to vary, so in the present invention, it is covered with synthetic resin.

As the synthetic resin used for coating, for example, polyamide,
Examples thereof include polyester, polyurethane, polyvinylidene chloride, and the like. In particular, polyamide and polyurethane resin are preferable because they have good adhesion to an amorphous metal. As a method of coating the surface of the amorphous metal stranded wire with synthetic resin,
It can be carried out by a dip coating method in which a synthetic resin is immersed in an emulsion solution or an organic solvent dissolving bath and then heat-treated, or an electric wire coating method in which the synthetic resin is melted and coated.

FIG. 1 is a perspective view of a cut surface of a fishing line of the present invention, showing a state in which seven amorphous metal filaments 1 are twisted and the surface is covered with a synthetic resin film. Since the synthetic resin layer 2 is carried out for the purpose of preventing the amorphous metal filament 1 from scattering, it is desirable to coat it thinly and uniformly. In this case, a coloring agent may be kneaded with the synthetic resin for coloring, if necessary. Fig. 2 shows the state where the cut ends are distorted as it is as it is twisted up, and in such a state, the needle hole of the fishing hook, the ring hole for removing the sulcan or swivel, etc. Since it is very difficult to thread a small perforated part such as a tube, it is important to prevent disparity.

The fishing line of the present invention is an amorphous metal in which three or more amorphous metal filaments which are tough and have excellent corrosion resistance are twisted together to give suppleness, and the surface of the stranded wire is covered with a synthetic resin to prevent the filaments from being distorted A multi-filament fishing line with a tensile strength of 350 to 380 kg / mm ² and a very strong fishing line that is more than twice the fishing line made of stainless steel or tungsten metal fiber and more than three times that of nylon 6 synthetic resin fiber fishing line. You can

(Example) Below, the Example of this invention is given and it demonstrates concretely.

The tensile strength, cutting elongation, corrosion resistance and bending hardness of the fishing line were measured as follows.

Measurement method: Tensile strength …… Autograph DSC-2000 (manufactured by Shimadzu Corporation) Corrosion resistance …… Indicated by the strength retention after immersion in seawater for 7 days.

Bending hardness: The maximum stress value when a metal wire with a diameter of 2 mm is provided in a width of 10 mm, a fishing line with a length of 30 mm is placed on it, and the center part of the fishing line is pressed and bent.

Example 1 Atomic composition is (Co92.7%, Fe6.3%, Nb1%) 72.5%, Si12.5
%, B15% metal was melted, and a filament having a circular cross section with a diameter of 125 μm was obtained by a spinning liquid spinning method, and then cold-drawn with a die to obtain an amorphous metal filament with a diameter of 35 μm. Align 7 of these filaments and twist 705T / M
After being twisted with each other, it was treated for 20 seconds in a temperature atmosphere of 425 ° C. Further, 30% (wet%) of a polyurethane emulsion resin solution having a solid content of 35% was applied and then treated in an atmosphere of a temperature of 160 ° C. for 30 seconds to obtain a fishing line having a diameter of 105 μm.

Table 1 shows the measured values of the tensile strength, breaking elongation, corrosion resistance and bending hardness of the fishing line obtained above.

Example 2 Atomic composition is (Co87%, Fe5.5%, Cr7.5%) 72.5%, Si12.5
%, B15% metal was used and processed in the same manner as in Example 1 to obtain a fishing line with a diameter of 105 μm.

Table 1 shows the physical properties of this fishing line.

Comparative Example 1 Atomic composition of Fe81%, Si4%, B14%, C1% metal was melted,
The same spinning liquid spinning method as in Example 1 was used to obtain a filament having a diameter of 125 μm, which was then cold-drawn with a die to give a diameter of 105.
An amorphous metal filament of μm was obtained. The filament was treated for 20 seconds in an atmosphere of 425 ° C to obtain a fishing line made of an amorphous metal monofilament.

The physical properties of this fishing line are also shown in Table 1.

Comparative Example 2 A tungsten filament having a diameter of 35 μm was similarly processed after the twisting step of Example 1 to obtain a fishing line having a diameter of 105 μm.

The physical properties of this fishing line are also shown in Table 1.

As is clear from Table 1, the fishing line of the present invention had better corrosion resistance in seawater than the fishing line of Comparative Example 1 and had a supple feel.

(Effects of the Invention) The fishing line of the present invention is a remarkably excellent fishing line having high tensile strength, good corrosion resistance in seawater, supple feel, and no kink.

[Brief description of drawings]

FIG. 1 is a sectional perspective view of the fishing line of the present invention, and FIG. 2 is a perspective view of a cut portion before resin coating. 1 ... Amorphous metal filament 2 ... Synthetic resin coating layer

Claims (2)

[Claims] 1. An amorphous metal filament,
An amorphous metal multi-filament fishing line characterized by comprising three or more filaments, twisted, and coated with a synthetic resin. 2. The composition of the amorphous metal filament is (T _100-x M _x ) _a Z _b The fishing line according to claim 1, wherein