JP2525132B2 - Fishing line - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing line suitable for fishing large fish.

[0002]

2. Description of the Related Art Conventionally, as a thick fishing line used for fishing a large fish such as a tuna, a bundle of a large number of synthetic fibers such as nylon threads or polyester threads is twisted into three strands. Things are known.

However, the fishing line made by the triple twist has a peculiar habit, that is, a peculiarity to the twine, becomes too hard, a kink easily enters during the work, and the fishing line is entangled. There was a problem that the operability was poor because the loading and hoisting work could not be performed smoothly. In addition, as mentioned above, when making a longline trunk by twisting three strands using nylon thread or polyester thread, it must be made quite thick in order to have strength, and a sufficient thread length when wound on a reel. There was a problem that it could not be secured, and when it was loaded on a ship, it was bulky and could not be loaded much. Further, there is a problem that water easily penetrates between the fibers of the fishing line, which makes the fishing line heavy and deteriorates workability.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and eliminates yarn peculiarities, improves operability, and has high strength even when the thickness is thin, and is loaded on a ship. It is an object of the present invention to provide a fishing line that can be made less bulky and has good drainage properties.

[0005]

In order to solve this problem, the present invention comprises a core fiber made of synthetic fiber,
A gist of the present invention is that a tape made of a synthetic resin is wound around the core yarn to cover the core yarn, and a plurality of yarns covered with the tape are used for braiding. Further, the gist of the present invention is that an adhesive adhesive is applied to the inner surface of the tape covering the core yarn. Further, the present invention comprises a hot-melt type synthetic resin adhered to the inner surface of a tape for covering the core yarn, and after covering the core yarn with the tape, the hot-melt type synthetic resin is melted to form a core yarn. The gist is that they are attached.

The present invention will be described in detail below. It is desirable that the synthetic fibers constituting the core yarn have a tensile strength of 20 g / d or more and a breaking elongation of 4 to 8%. A fiber is a synthetic fiber having a low elongation and a high strength obtained by liquid crystal spinning or gel spinning, for example, a Kevlar (registered trademark, manufactured by DuPont) made of an aramid resin.
Yarn, Vectran (registered trademark, made by Kuraray Co., Ltd.) yarn made of polyarylate resin, Techmilon (registered trademark, made by Mitsui Petrochemical Industry Co., Ltd.) yarn made of polyethylene resin, and Dyneema (registered trademark, Toyobo Co., Ltd.) ) Made) thread etc. Further, these yarns forming the core yarn may be monofilaments or multifilaments.

By the way, the reason why the tensile strength of the synthetic fiber constituting the core yarn is set to 20 g / d or more and the elongation at break is set to 4 to 8% is as follows. If the breaking elongation is less than 4%, there will be a problem of shock breakage, and if the breaking elongation exceeds 8%, hoisting will occur. This is because there is a problem that it sometimes grows and the workability is poor.

As the tape for wrapping the core yarn, a narrow tape made of synthetic resin such as nylon, polyester or polyolefin is used. In addition, as an adhesive adhesive applied to the inner surface of this tape, a urethane-based adhesive,
An adhesive made of an acrylic resin or ethylene vinyl acetate resin is used. Further, as the hot-melt type synthetic resin adhered to the inner surface of the tape, synthetic resin having a melting point of 150 ° C. or less such as modified nylon, modified polyester, or polyolefin is used. The melting point of the hot-melt type synthetic resin is set to 150 ° C. or less, because if it is higher than this, the tape or core yarn may be softened and melted. In this way, the thread obtained by taping the core thread through the sticky adhesive or hot-melt type synthetic resin attached to the inner surface of the tape becomes rod-shaped, improving the focusing property and durability. The property is also improved.

[0009] A fishing line can be produced by braiding a plurality of yarns in which a core yarn is covered with the tape, but considering a trunk line for longline, 8 or 1
Double striking is preferred. In particular, it is preferable that the trunk line for long lines is installed in a state where it floats as close to the sea surface as possible. For that purpose, it is necessary to select a material and set the specific gravity of the seawater to 1.04 or less. Specifically, the specific gravity of the core yarn is 0.96
When using small TECMILON (registered trademark, manufactured by Mitsui Petrochemical Co., Ltd.) yarn and Dyneema (registered trademark, manufactured by Toyobo Co., Ltd.) yarn, it is easy to settle near the sea surface without sinking into the sea. In addition, the fishing line obtained by braiding a plurality of yarns in which the core yarn is covered with a tape has a strong strain and does not have a thread habit like the fishing line made by the conventional triple twist. , The judgment will be better. Further, since the core yarn is covered with the tape, it does not easily contain water and has good drainability.

By the way, it is also possible to change the color of the tape covering the core yarn by changing the color at regular intervals, and thereby to know the water depth. FIG. 1 is a perspective view showing a fishing line obtained by the present invention, FIG. 2 is an enlarged view showing a state where a core yarn is covered with a tape, and FIG. 3 is a sectional view showing the fishing line obtained by the present invention. Reference numeral 1 denotes a yarn in which a core yarn 3 is covered with a tape 2, and twelve of the yarns 1 are used to produce a fishing line.

[0011]

Embodiments of the present invention will be described below. Example 1 Tecmilon (registered trademark, manufactured by Mitsui Petrochemical Industry Co., Ltd.) yarn having a tensile strength of 25 g / d and a breaking elongation of 5%, 1000 denier / 100 f × 3 yarns (total 3,000 denier) was used as a core yarn, and the periphery thereof was used. 3m width made of nylon film
A fishing line having a diameter of 4.5 m / mφ was produced by using 12 filaments covered with three narrow tapes each having a thickness of 25 μm and a thickness of 25 μm.

COMPARATIVE EXAMPLE 1 Tecmilon (registered trademark, manufactured by Mitsui Petrochemical Co., Ltd.) yarn having a tensile strength of 25 g / d and a breaking elongation of 5% was 1000 denier / 100 f × 3 yarns (total 3000 denier) and 12 yarns were used. This was used to make a string, and a fishing line with a diameter of 4.5 m / mφ was produced.

Comparative Example 2 Tecmilon (registered trademark, manufactured by Mitsui Petrochemical Industry Co., Ltd.) yarn having a tensile strength of 25 g / d and a breaking elongation of 5%, 1000 denier / 100 f × 12 yarns were twisted and drawn 3 times. The strands were aligned and twisted to produce a fishing line with a diameter of 4.5 m / mφ.

Table 1 shows comparative data of fishing lines produced based on Example 1 and Comparative Example 1.

[0015]

[Table 1]

In the table, abrasion resistance and water absorption were evaluated by the following test methods. Abrasion resistance (edge method) As shown in FIG. 4, one end of the fishing line 4 for test is 30 rpm.
It is attached to a device 5 having a stroke of 2, and a load 6 of 2 kg is applied to the other end of the fishing line 4, and the portion for evaluating the wear resistance of the fishing line 4 is at a right angle to the support rod 8 wound with emery paper CC-800CW No. 7. After contacting with each other for 10 minutes of abrasion test, the strength was measured with an autograph tester manufactured by Shimadzu Corporation, and the retention rate to the blank was evaluated. Water Absorption After a test piece cut into a certain length is completely dried (A), it is immersed in water for 10 minutes, and then taken out, and
After draining water for a minute, the weight (B) of the test piece was measured, calculated by the following formula, and evaluated by the value.

[0017]

[Equation 1]

From Table 1, it can be seen that the fishing line produced in Example 1 is superior to the fishing line produced in Comparative Example 1 in each characteristic.

[0019]

As described above, since the fishing line of the present invention is braided, there is no thread habit like the fishing line made by the conventional triple twist, and the operability can be improved. . Further, since the core yarn is covered with the tape, it is difficult to contain water and has good drainability. Furthermore, the thread obtained by taping the core thread through a sticky adhesive or hot-melt type synthetic resin attached to the inner surface of the tape becomes rod-shaped, improving the bundling property and durability. It is improved and has high strength even if it is thin, and it can reduce bulk when loaded on a ship.

[Brief description of drawings]

FIG. 1 is a perspective view of a fishing line according to the present invention.

FIG. 2 is an enlarged view showing a state in which a concentric yarn is covered with a tape.

FIG. 3 is a sectional view of the fishing line.

FIG. 4 is an explanatory diagram showing a wear resistance evaluation method.

[Explanation of symbols]

 1 Thread 2 Tape 3 Core yarn

Claims (3)

(57) [Claims] 1. A core yarn is made of synthetic fiber, and a tape made of synthetic resin is wound around the core yarn to cover the core yarn. The yarn is covered with a plurality of yarns covered with the tape. A fishing line characterized by: 2. The fishing line according to claim 1, wherein a sticky adhesive is applied to the inner surface of the tape that covers the core thread. 3. A hot melt type synthetic resin is adhered to the inner surface of a tape for covering the core yarn, and after covering the core yarn with the tape, the hot melt type synthetic resin is melted to form a core yarn. The fishing line according to claim 1, wherein the fishing line is attached.