Harris or leader, and methods for manufacturing the same.

JP2026144513APending Publication Date: 2026-09-09MIE UNIVERSITY +1
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Patent Information

Application Number
JP2025031843
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-09-09

AI Technical Summary

Benefits of technology

【0008】 本発明のハリス及びリーダーによれば、離れた魚に対して光でアピールすることにより、良好な釣果を得ることができる。

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Abstract

This product provides a leader and fishing guide that can be used to attract fish and achieve good fishing results. [Solution] A leader or fishing line is provided in which highly luminous particles are adhered to the surface of a filament via a resin binder.
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Description

Technical Field

[0001] The present invention relates to a fishing leader or trace.

Background Art

[0002] Conventionally, there have been known fishing lines provided with colored regions at regular pitches so that anglers can easily visually recognize the same (Patent Document 1), and fishing lines in which a plate-like filler pigment having pearlescent luster is contained in a core portion of a composite filament (Patent Document 2). These fishing lines have been used as running lines so as not to alert fish.

[0003] On the other hand, it has been considered extremely important that leaders and traces are inconspicuous in order to obtain good fishing results without alerting fish. Using a thin leader is effective for making it less likely to alert fish, but too thin leaders have a limitation in that the leader will be broken when a large fish is hooked. There is also a report that by applying coloring that blends into the landscape to running lines and leaders, while making it easy for anglers to visually recognize the fishing line, fish do not become wary, leading to improved fishing results (Patent Document 3). However, no leader or trace that positively attracts fish has been known so far.

Prior Art Literature

Patent Literature

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problem to be Solved by the Invention

[0005] The present invention aims to provide fishing line and leader that can be used to achieve good fishing results by appealing to fish. [Means for solving the problem]

[0006] The inventors diligently studied and completed the present invention in order to achieve the above objectives. Specifically, the present invention is as follows: [1] to [8].

[0007] [1] A leader or fishing line in which highly luminous particles are adhered to the surface of a filament via a resin binder. [2] The Harris or leader according to [1], wherein the particles are plate-like bodies with an average circular diameter of 70 to 1000 μm. [3] The leader or fishing line according to [1] or [2], wherein the plate-like body is at least one selected from the group consisting of metal foil, metal vapor-deposited film, mica, fish scales, and mother-of-pearl. [4] A Harris or leader according to any one of [1] to [3], comprising 0.1 to 120 parts by mass of the particles per 100 parts by mass of the filament. [5] The leader or fishing line according to any one of [1] to [4], wherein the filament is made of polyvinylidene fluoride, polyamide, polyester, polyethylene, paramylon-based aramid fiber, or biodegradable resin. [6] Harris or leader according to any one of [1] to [5], having a coating resin layer on the surface of the filament and the particles. [7] The leader or fishing line according to [6], wherein an oil or surfactant is applied to the coating resin layer. [8] A method for manufacturing a Harris or leader according to any one of [1] to [7], wherein the particles are adhered to the surface of the filament using the resin binder. [Effects of the Invention]

[0008] According to the present invention, good fishing results can be obtained by attracting distant fish with light. [Brief explanation of the drawing]

[0009] [Figure 1] This is a photograph of the appearance of Harris and Leader in Example 1. [Figure 2] This is a magnified photograph of the Harris and leader from Example 1. [Figure 3] These are photographs of the appearance of the Harris and Leader after the friction test in Example 2. [Figure 4] This is a schematic diagram of the mechanism in Examples 3-11 and Comparative Example 1. [Modes for carrying out the invention]

[0010] The leader or fishing line of the present invention is made by adhering highly luminous particles to the surface of a filament via a resin binder. With such a leader or fishing line, good fishing results can be obtained by attracting distant fish with light. In the present invention, "leader" refers to the fishing line used between the main line and the hook when bait fishing, and "fishing line" refers to the fishing line used between the main line and the lure when fishing with a lure. These may be a main line with branch lines attached (e.g., for split lines, for sabiki fishing). In this case, it is sufficient that at least one of the main line and the branch line is made of a filament with highly luminous particles adhering to the surface via a resin binder.

[0011] The filament used in the present invention is not particularly limited, and conventionally used fishing lines can be used. For example, a filament made of a fiber-forming thermoplastic resin can be used. Examples of fiber-forming thermoplastic resins include polyamides such as nylon 6, nylon 66, nylon 610, and poly(p-phenylene terephthalamide), polyesters such as polyethylene terephthalate, polybutylene terephthalate, polybutylene succinate, and copolymers of p-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid, fluororesins such as polyvinylidene fluoride and polytetrafluoroethylene, polyethylenes such as ultra-high molecular weight polyethylene, paramylon-based aramid fibers, and biodegradable resins. The type of filament can be appropriately selected according to the desired properties such as specific gravity, strength, flexibility, and texture. In particular, it is preferable that the filament is made of polyvinylidene fluoride, polyamide, polyester, polyethylene, paramylon-based aramid fibers, or biodegradable resins. In addition to the thermoplastic resin, the filament may also contain additives that are commonly blended into thermoplastic resins, such as stabilizers and UV inhibitors.

[0012] The filament may be either a monofilament or a multifilament, but a monofilament is preferred. The thickness of the filament can be appropriately set according to the type of fish being targeted, for example, a diameter of 0.05 to 2.34 mm.

[0013] The shape of the highly luminous particles used in this invention is not particularly limited as long as they sparkle when the leader or fish move, and examples include plate-like bodies, polyhedra, spheres (metal powders such as aluminum powder), flakes, cylinders, circles, ellipsoids, etc., with plate-like bodies, polyhedra, and flakes being preferred, and plate-like bodies being more preferred. Examples of plate-like particles include metal foil, metal vapor-deposited film, mica, fish scales, and mother-of-pearl (crushed shells containing nacre), with metal vapor-deposited film being preferred. As metal vapor-deposited film, plate-like bodies obtained by crushing a resin substrate such as polyester, marine biodegradable resin, or plant-derived resin on which gold, silver, aluminum, etc., have been vapor-deposited on the surface (one or both sides) are used. In addition, plate-like bodies obtained by crushing a hologram film obtained by embossing the metal vapor-deposited film are also used. A coating layer may be formed on the vapor-deposited surface of these metal vapor-deposited films. In this case, the coating layer may contain colorants such as dyes and pigments. As the plate-like body made of these metal vapor-deposited films, general decorative glitter can be used. Examples of metal foils used as particles include gold foil, silver foil, and aluminum foil. Examples of polyhedral particles include quartz and diamond nanoparticles. The particles may also be colored with a coating agent containing colorants such as dyes and pigments. By changing the color tone of the highly luminous particles depending on the target fish species, the catch may be further improved. For example, leaders and fishing lines using highly luminous particles with a green tone are particularly suitable for use with horse mackerel or filefish, especially for horse mackerel, and leaders and fishing lines using highly luminous particles with a gold tone are particularly suitable for use with horse mackerel or filefish, especially for filefish.

[0014] It is preferable that the average equivalent circular diameter of the particles is 70 to 1000 µm. More preferably, the average equivalent circular diameter is 100 µm or more. On the other hand, the average equivalent circular diameter is more preferably 800 µm or less, further preferably 700 µm or less, still further preferably 600 µm or less, and particularly preferably 500 µm or less. The equivalent circular diameter is obtained by converting the projected area of a particle measured using a digital microscope into the diameter of a circle having the same area. At this time, the particle is measured such that the projected area is maximized. The average equivalent circular diameter is obtained by arithmetically averaging the equivalent circular diameters of 5 particles. Specifically, it is measured by the method described in the Examples.

[0015] The average thickness of the plate-like body is preferably 1 to 200 µm. The average thickness is preferably 5 µm or more, more preferably 10 µm or more, and further preferably 15 µm or more. On the other hand, the average thickness is preferably 150 µm or less, more preferably 100 µm or less. In addition, from the viewpoint of further enhancing glittering brightness, the ratio of the average equivalent circular diameter to the average thickness (average equivalent circular diameter / average thickness) in the plate-like body is preferably 1.1 or more, more preferably 1.5 or more, further preferably 2 or more, still further preferably 3 or more, particularly preferably 4 or more, and most preferably 5 or more. On the other hand, the ratio (average equivalent circular diameter / average thickness) is usually 50 or less, and preferably 20 or less. The average thickness of the plate-like body is measured by the method described in the Examples.

[0016] It is preferable that the Harris or leader contains 0.1 to 120 parts by mass of the particles relative to 100 parts by mass of the filament. The content of the particles is more preferably 0.5 parts by mass or more, and further preferably 1 part by mass or more. On the other hand, the content of the particles is more preferably 50 parts by mass or less, and further preferably 30 parts by mass or less.

[0017] The resin binder used in the present invention is not particularly limited, and common liquid binders can be used; for example, polyurethane binders, acrylic binders, silicone binders, nitrocellulose binders, etc. can be used. Any of these may be used, such as dry-solidifying binders in the form of resin emulsions or solutions, and chemically reactive binders, with dry-solidifying binders being preferred. Either water or an organic solvent may be used as the liquid medium for the dry-solidifying binder, and the former is preferred from an environmental perspective. The solid content in the dry-solidifying binder is usually 1 to 80% by mass. The content (solid content) of the resin binder in the harris or leader is preferably 0.5 to 50 parts by mass relative to 100 parts by mass of the filament. The content is more preferably 1 part by mass or more, and further preferably 1.5 parts by mass or more. On the other hand, the content is more preferably 30 parts by mass or less.

[0018] From the viewpoint of improving durability, it is preferable that the harris and leader have a coating resin layer on the surfaces of the filament and the particles. A common coating agent used for top coating of fishing lines is used for the coating resin layer, and examples thereof include polyurethane-based coating agents, acrylic coating agents, epoxy-based coating agents, and the like. Alternatively, the coating resin layer may be formed using the resin binder described above. The coating resin layer may contain additives generally blended in resins, such as stabilizers, UV inhibitors, colorants (pigments, dyes), and antibacterial agents. The thickness of the coating resin layer is usually 0.1 to 100 μm.

[0019] From the viewpoint of improving slippage, flexibility, and antistatic properties, it is preferable to apply oil or a surfactant to the surfaces of the filament and the particles, and to the surface of the coating resin layer when such a layer is formed. As the oil or surfactant, common finishing agents used in textiles can be used. Examples of the oil include modified silicones such as amino-modified silicone and epoxy-modified silicone, straight silicones such as dimethyl silicone, and fluorine-containing oils. Examples of the surfactant include cationic surfactants.

[0020] The method for manufacturing Harris and Leader of the present invention is not particularly limited, but a method of adhering the particles to the surface of the filament using the resin binder is preferred. Specifically, examples include a method of applying a mixture obtained by mixing the liquid binder and the particles to the surface of the filament and then solidifying or hardening the binder; a method of immersing the filament in a mixture obtained by mixing the liquid binder and the particles, then removing it and then solidifying or hardening the binder attached to the filament; and a method of immersing the filament in the liquid binder, then removing it and then bringing the filament into contact with the particles and then solidifying or hardening the binder on the surface of the filament.

[0021] To improve the adhesion of the particles, it is preferable to plasma-treat the surface of the filament before adhering the particles to the filament. The plasma treatment method is not particularly limited. For example, the plasma treatment apparatus shown in Figure 12 of International Publication No. 2014 / 167626 can be used. The plasma treatment can be performed by appropriately selecting suitable conditions within the range of known treatment conditions of existing plasma treatment apparatuses. A preferred plasma treatment is one in which the fiber-forming thermoplastic resin constituting the filament does not soften, for example, a low-temperature plasma treatment below the softening temperature.

[0022] After adhering the particles to the surface of the filament, a coating resin layer is formed on the surface of the filament and the particles as needed. The method for forming the coating resin layer is not particularly limited, and examples include immersing the filament to which the particles are adhered in a coating agent, removing it, and then solidifying or hardening the coating agent adhering to the surface of the filament and the particles.

[0023] After forming a coating resin layer on the surface of the filaments and particles, oil or a surfactant is applied to the surface of the coating resin layer as needed.

[0024] The leader and fishing line produced by the present invention sparkle brightly when the leader or fishing line or fish moves. Surprisingly, when using these leaders, excellent fishing results are obtained. Conventionally, it has been considered very important for leaders and fishing lines to be inconspicuous in order to obtain good fishing results without alarming fish. In contrast, the inventors conducted research on the retinas of fish and found that Large Ganglion Cells (LGCs), one of the retinal nerves in fish, are thought to be involved in a vigorous response to small spots of light (LGC response) (Fish Physiology and Biochemistry, Vol. 40, pages 23-32, Taeko Miyazaki, “Retinal ganglion cell topography in juvenile Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel))). Specifically, it is thought that LGCs react to fast-moving shadows entering the field of vision in fish, allowing them to capture and prey on relatively distant prey. Therefore, we thought that by giving the leader and fishing line a sparkling shine to actively attract fish, we could attract fish from relatively far away and improve our catch. By adhering highly luminous particles to the surface of the filament, we created a leader and fishing line that sparkles and is easily recognized by fish from relatively far away. When we actually went fishing, we were surprised to find that we achieved excellent results. [Examples]

[0025] The present invention will be specifically described below using examples, but the present invention is not limited to these examples.

[0026] Example 1 50 parts by mass of commercially available water-based urethane binder, 100 parts by mass of water, and 50 parts by mass of "Diamond Piece No. 501 LG Gold" glitter manufactured by Daiya Kogyo Co., Ltd. (high-gloss particles with a golden color, formed by a golden coating layer on the vapor-deposited surface of an aluminum-deposited polyethylene terephthalate film, in plate form with an average thickness of 30 μm and an average circle equivalent diameter of 200 μm) were mixed. Using an adhesion device, 100 parts by mass of the resulting mixture was attached to the surface of 100 parts by mass of transparent monofilament with a diameter of 0.33 mm, made of polyvinylidene fluoride that had been pre-treated with atmospheric pressure plasma by a conventional method. The mixture was then dried at 110°C for 30 seconds using a hot air dryer. Subsequently, a silicone-based oil was applied to the surface of the monofilament and glitter to obtain fishing line and leader with golden-colored glitter adhered to the surface of the monofilament. In the fishing line and leader, the glitter content was 2 to 7 parts by mass and the cured binder content was 5 to 13 parts by mass per 100 parts by mass of monofilament. The average equivalent circle diameter and average thickness of the glitter were measured using a digital microscope. Specifically, the projected area was measured using a digital microscope. At this time, the glitter was measured perpendicular to the gold-deposited surface in order to maximize the projected area. The equivalent circle diameter was calculated by converting the measured projected area of ​​the glitter to the diameter of a circle of the same area. Five glitter samples were measured, and the average equivalent circle diameter was calculated by arithmetic mean of the obtained equivalent circle diameters. In addition, the thickness of five glitter samples was measured using a digital microscope, and the average thickness was calculated by arithmetic mean of the obtained values. Figure 1 shows a photograph of the appearance of the obtained Harris and Leader, and Figure 2 shows a magnified photograph of the Harris and Leader.

[0027] A field fishing test was conducted using the obtained Harris and leader lines. Four people fished for a total of 6 hours using super light jigging with 20-40g metal jigs, switching between the aforementioned leader and, as a reference example, a transparent monofilament leader made of polyvinylidene fluoride without bonded particles, every hour. The catch results (number of bites and total number of fish caught) are shown in Table 1.

[0028] [Table 1]

[0029] Example 2 The mixture was applied to the surface of the monofilament in the same manner as in Example 1, and then dried using a hot air dryer. After drying, the filament was immersed in a treatment solution (100 parts by mass of water and 50 parts by mass of commercially available aqueous urethane binder) for 5 minutes, then removed and air-dried. In this way, Harris and Leader lines were obtained in which a topcoat (coating resin layer, 30 μm thick) was formed on the surface of the filament and glitter.

[0030] The obtained Harris and Leader lines were fixed to cardboard with tape and mounted on a JSPS friction tester, "Friction Tester Type II," manufactured by Yasuda Seiki Seisakusho Co., Ltd. A friction test was then conducted under the following conditions. Figure 3 shows photographs of the Harris and Leader lines after the test. While the surface of the topcoat was worn, the glitter beneath the topcoat remained intact, and no other changes were observed. • Load 1.96N • Number of round trips: 10 ·Friction distance 12mm ·Friction speed 30 round trips / 1 minute • Friction material: Cotton cloth

[0031] Example 3 An experimental rig was prepared using a leader (gold) with gold-colored glitter adhered to the surface of the monofilament, which was made in the same manner as in Example 1, except that a monofilament made of polyvinylidene fluoride with a diameter of 0.165 mm was used. A schematic diagram of the rig prepared at this time is shown in Figure 4. As shown in Figure 4, a rig without branch lines (left diagram) was prepared with a weight 2 attached to the end of the main line 1. The reactions of horse mackerel and filefish to this rig were observed by the following method.

[0032] (Reaction to horse mackerel) Twelve horse mackerel were released into a tank with its sides shielded from light, and an LED light was shone from above. The above-mentioned device was placed in the tank. Observation was conducted for 10 minutes, during which the number of horse mackerel that approached the string and turned back, and the number of horse mackerel that remained near the string were recorded every 5 seconds. The results are shown in Table 2.

[0033] (Reaction to filefish) Three filefish were released into a transparent tank and illuminated from above with an LED light. The above-mentioned device was placed in the tank and left undisturbed for 3 minutes, after which it was operated in an up-and-down motion for 3 minutes. During this time, the number of times the filefish swam towards the stationary line, the number of times they pecked at the stationary line, the number of seconds they stared at the stationary line, the number of times they swam towards the up-and-down moving line, the number of times they pecked at the up-and-down moving line, the number of seconds they stared at the up-and-down moving line, and the number of times they moved up and down in response to the up-and-down moving line were recorded. The results are shown in Table 3.

[0034] Example 4 Using a leader (gold) with a golden-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 3, a two-pronged rig (middle diagram) was constructed as shown in Figure 4, with a weight 2 attached to the end of the main line 1 and one branch line 3. The reaction of horse mackerel to this rig was observed in the same manner as in Example 3. The results are shown in Table 2.

[0035] Example 5 Using a leader (gold) with gold-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 3, and a leader (clear) made of a 0.165 mm diameter monofilament of polyvinylidene fluoride, a two-pronged rig (middle diagram) was prepared as shown in Figure 4, with a weight 2 attached to the end of the main line 1 (clear) and one branch line 3 (gold). The reaction of horse mackerel to this rig was observed in the same manner as in Example 3. The results are shown in Table 2.

[0036] Example 6 Using a leader (gold) with a golden-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 3, a sabiki rig (right figure) was made with a weight 2 attached to the end of the main line 1 and five branch lines 3, as shown in Figure 4. The reaction of horse mackerel and filefish to this rig was observed in the same manner as in Example 3. The results are shown in Tables 2 and 3.

[0037] Example 7 Using a leader (gold) with gold-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 3, and a leader (clear) made of a 0.165 mm diameter monofilament of polyvinylidene fluoride, a sabiki rig (right figure) was prepared as shown in Figure 4, with a weight 2 attached to the end of the main line 1 (clear) and five branch lines 3 (gold). The reaction of horse mackerel to this rig was observed in the same manner as in Example 3. The results are shown in Table 2.

[0038] Example 8 The leader (green) was prepared in the same manner as in Example 1, except that a 0.165 mm diameter monofilament made of polyvinylidene fluoride was used, and the high-brightness particles were "Diamond Piece No. 501 Green" glitter manufactured by Daiya Kogyo Co., Ltd. (high-brightness particles with a green color tone, formed by a green coating layer on the vapor-deposited surface of an aluminum-deposited polyethylene terephthalate film, in plate form with an average thickness of 30 μm and an average circle equivalent diameter of 200 μm). The fishing rig was prepared in the same manner as in Example 3, except that the leader was used, and the reaction of horse mackerel and filefish to the rig was observed. The results are shown in Tables 2 and 3.

[0039] Example 9 The fishing rig was prepared and the reaction of horse mackerel to it was observed in the same manner as in Example 4, except that a leader (green) with green-colored glitter, prepared in the same manner as in Example 8, was attached to the surface of a monofilament. The results are shown in Table 2.

[0040] Example 10 The fishing rig was prepared and the reaction of horse mackerel to the rig was observed in the same manner as in Example 5, except that a leader (green) with green-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 8, and a leader (clear) made of a 0.165 mm diameter monofilament of polyvinylidene fluoride were used. The results are shown in Table 2.

[0041] Example 11 The fishing rig was prepared in the same manner as in Example 8, except that a leader (green) with green-colored glitter attached to the surface of a monofilament was used. The reaction of horse mackerel and filefish to the rig was also observed. The results are shown in Tables 2 and 3.

[0042] Example 12 The fishing rig was prepared and the reaction of horse mackerel to the rig was observed in the same manner as in Example 7, except that a leader (green) with green-colored glitter attached to the surface of a monofilament, prepared in the same manner as in Example 8, and a leader (clear) made of a 0.165 mm diameter monofilament of polyvinylidene fluoride were used. The results are shown in Table 2.

[0043] Comparative Example 1 The fishing rig was prepared in the same manner as in Example 3, except that a leader (clear) made of polyvinylidene fluoride monofilament with a diameter of 0.165 mm was used, and the reactions of horse mackerel and filefish to the rig were observed. The results are shown in Tables 2 and 3.

[0044] [Table 2]

[0045] [Table 3]

[0046] As shown in Examples 3-11 and Comparative Example 1, horse mackerel and filefish, especially filefish, reacted to the leader material with gold-colored glitter adhered to the surface of the monofilament (Examples 3-7), and the fish-attracting effect was higher compared to clear (transparent) leader material without glitter (Comparative Example 1). On the other hand, horse mackerel and filefish, especially horse mackerel, reacted to the leader material with green-colored glitter adhered to the surface of the monofilament (Examples 8-12), and the fish-attracting effect was higher compared to clear (transparent) leader material without glitter (Comparative Example 1). [Explanation of Symbols]

[0047] 1 Main thread 2 weights 3 Branch threads

Claims

1. A leader or fishing line in which highly luminous particles are adhered to the surface of a filament via a resin binder.

2. The Harris or leader according to claim 1, wherein the particles are plate-like bodies with an average circular diameter of 70 to 1000 μm.

3. The leader or fishing line according to claim 2, wherein the plate-like body is at least one selected from the group consisting of metal foil, metal vapor-deposited film, mica, fish scales, and mother-of-pearl.

4. The Harris or leader according to claim 1, comprising 0.1 to 120 parts by mass of the particles with respect to 100 parts by mass of the filament.

5. The leader or fishing line according to claim 1, wherein the filament is made of polyvinylidene fluoride, polyamide, polyester, polyethylene, paramylon-based aramid fiber, or biodegradable resin.

6. The Harris or leader according to claim 1, further comprising a coating resin layer on the surface of the filaments and particles.

7. The Harris or leader according to claim 6, wherein an oil or surfactant is applied to the surface of the coating resin layer.

8. A method for manufacturing a Harris or leader according to any one of claims 1 to 7, wherein the particles are adhered to the surface of the filament using the resin binder.

Citation Information

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