JPH01304837A - Fishing line - Google Patents

Abstract

PURPOSE:To prepare a high-specific gravity and high-strength fishing line rich in straightness and flexibility by providing a covering layer formed by knitting metallic fine wires on the outer periphery of a core material obtained by bundling plural polyethylene fibers, coating the covering layer with a radiation curable resin and curing the resin. CONSTITUTION:A covering layer 5 formed by knitting metallic fine wires 4, such as tungsten wire, is provided on the outside of a core material 3 obtained by bundling plural polyethylene fibers 2 and a radiation curable resin, such as acrylic ester oligomer, is then applied to the covering layer 5 and cured. As a result, a fishing line, having a high specific gravity and strength and low elongation and rich in straightness and flexibility with high practicability can be prepared.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a fishing line suitable for catching big fish.

[Prior Art] In addition to nylon fishing line, a high-strength fishing line made of hollow woven tungsten wire has been proposed as a fishing line suitable for hunting big fish.

[Problems to be Solved by the Invention] However, this tungsten fishing line has a problem in that it is somewhat less flexible than commercially available nylon fishing line, and is prone to curling, twisting, and other curls.

The present invention provides a fishing line that has high specific gravity, high strength, and is rich in straightness and flexibility.

[Means for Solving the Problems] The fishing line according to the present invention includes a core material made of a plurality of polyethylene fibers, and a coating layer formed by knitting thin metal wires on the outside of the core material, and a radiation-curable resin is applied to the coating layer. It is characterized by being formed by coating and curing.

[Function] The core material made by bundling multiple polyethylene m fibers functions as a high-strength expansion force body, and the covering layer formed by knitting fine metal wires on the outside of the supplementary core material can be used even in deep seas. To hold thread almost straight without causing thread dandruff.

In addition, the irradiation-cured resin layer, which is applied and cured on the coating layer, improves drainage when winding fishing line at high speed with a reel, and also protects the moeki coating layer, preventing electrolytic corrosion of the metal reel. It also prevents

[Example] Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.

FIG. 1 is a schematic diagram showing an example of a fishing line 1 according to the present invention, in which a covering layer 5 formed by knitting thin metal wires is provided on the outside of a core material 3 made of a bundle of a plurality of synthetic fibers 2. ing.

The material of the thin metal wire is preferably a metal with excellent strength and corrosion resistance, such as tungsten or stainless steel, and it is especially preferable to use a tungsten wire as the thin metal wire.

Rather than using a single thin metal wire, it is better to bundle multiple wires (preferably 2 to 4 wires) to form a wire for braiding, and use this to form a braided wire in order to improve flexibility and strength. It is preferable. The number of raw wires for forming a braided wire is preferably about 8 to 16, but may be larger than this.

Although the covering layer can be formed by forming two or three braided wire layers, usually only one layer is sufficient.

The thickness of the thin metal wire 4 is suitably 100 microns or less, more preferably 10 microns to 70 microns, and even more preferably 10 microns to 50 microns; if it is thinner than this, it is not sufficient in terms of safety. On the other hand, if it is too thick, the rigidity will increase and the flexibility will decrease.

For the core material 3 made of synthetic fibers, a continuous multifilament yarn made up of several thousand polyethylene filaments each having a diameter of several microns is preferably used.

As the synthetic fibers, from the viewpoint of forming the core material 3 and performing the function as an expansion force body, in addition to the above-mentioned polyethylene, synthetic fibers with high strength and high elastic modulus, polyolefins such as polypropylene, polypropylene, etc. Synthetic resin filaments such as vinyl alcohol and polyacrylonitrile can be considered, but in particular, high-strength, high-modulus polyethylene fibers, such as ultra-high molecular weight polyethylene solutions with a weight average molecular weight of 1 million or more, are spun and cooled to produce gel-like fibers. A high-strength, high-modulus polyethylene fiber obtained by simultaneously drawing and drying the gel-like fiber is more preferably used from the viewpoint of obtaining a fishing line with little elongation and good fishing sensitivity.

The surface layer 7 formed by coating and curing the radiation-curable resin on the coating layer 5 has the main purpose of protecting the coating layer 5 and improving its texture, but it also prevents the metal material constituting the coating layer 5 from being exposed to seawater. It also has the effect of preventing electrolytic corrosion of the metal reel caused by contact with the metal reel. As the radiation-curable resin, a solvent-free radiation-curable paint that cures at room temperature in principle does not require a heating operation and does not require any equipment to remove the solvent by evaporation, and furthermore, it does not require the use of solvent vapor that can be removed from the human body. It is more suitable for use because it does not cause complicated problems such as the influence of air pollution and consideration to the atmosphere. Examples of the solvent-free radiation-curable paint include the following.

(1) Ester acrylate oligomer, ester methacrylate oligomer, urethane acrylate oligomer, urethane methacrylate oligomer, epoxy acrylate, epoxy methacrylate, polyether acrylate, polyether methacrylate, etc. Oligomers having an acryloyl group or methacryloyl group at the molecular end, acrylic acid, methacrylate Prepolymers of acids, methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate and acrylic or methacrylic acid derivatives.

(2) Oligomers having an allyl group at the molecular end, such as allyl ester oligomers, allyl ether oligomers, allyl urethane oligomers, and allyl epoxy oligomers. diallyl phthalate, triallyl isocyanurate,
An oligomer with an allyl group at the end of the molecule, which is made of a prepolymer of a compound having an allyl group, such as triallyl cyanurate.

(3) Polyester oligomers, polyether oligomers, polyurethane oligomers, epoxy oligomers having an epoxy ring at the molecular end; however, when an epoxy compound is used, a Lewis acid as a cationic polymerization catalyst is produced, Lewis acid diazonium salts, Lewis acid sulfonium salts, It is necessary to add Lewis acid iodonium salt, etc.

(4) Unsaturated polyester oligomers, unsaturated polynisderimide oligomers, and unsaturated polyamide oligomers having unsaturated bonds derived from maleic acid, funuric acid, itaconic acid, etc. in the Sn molecule.

(5) Polybutadiene, 7J Talythiol, polyene type resin, spiroacetal resin having an unsaturated double bond in the molecular chain or in the side chain.

I
IJ Noh.

In order to irradiate and cure a direct solvent-free radiation-curable coating with violet 4 rays, it is necessary to add a photosensitizer to the cured coating. As this photosensitizer, many known sensitizers such as benzoin alkyl ethers such as benzoin ethyl ether and hengein-n-butyl ether, acetophenone conductors such as jetoxyacetophenone, and aluminum oxime esters are suitably used. Ru.

Further, the solvent-free radiation-curable paint can also be cured by irradiation with an electron beam. In this case, it is not necessary to use a photosensitizer. However, compared to electron beam irradiation equipment, ultraviolet irradiation equipment is simpler, and depending on the energy level of the electron beam used, there is no risk of deteriorating the core material. Although it requires the use of a photosensitizer, it is more preferred.

An intermediate layer 6 made of resin is provided in the gap between the core material 2 and the coating layer 5.
is preferably used. Examples of this resin material include polyisoprene, polybutadiene, nitrile rubber, polyester, polyamide, polyvinyl acetate, ethylene vinyl acetate copolymer, styrene-butadiene copolymer, polyurethane, polyethylene, ionomer, polyvinyl chloride, natural rubber, Examples include resins such as chlorobrene.

These resins are used in solution or emulsion form. The above-mentioned solvent-free radiation-curable coating can also be used. As the resin material, it is desirable to use a non-conductive resin material that is not easily eroded by seawater and has excellent durability.

The intermediate layer 6 plays the role of protecting the core material 3, and
Improves adhesion with the coating layer 5. J2 size of middle layer 6 is 1~
The thickness is preferably about 10 microns, more preferably 2 to 5 microns. The thickness of the surface layer 7 is also 1
Preferably, the thickness is selected to be 1 to 10 microns. More preferably, the thickness is 2 to 5 microns.

FIG. 2 shows an example of a coating device used for forming the intermediate layer 6, surface layer 7, etc., and shows a winding machine 10 equipped with a take-up spool and a wire hanging machine 11 that holds the unprocessed wire. A processing tank 12 and a drying device (or irradiation device) 13 are installed between the two. 13 is an ultraviolet irradiation device or an electron beam irradiation device when curing the radiation-curable paint after coating, and a drying device when drying and solidifying the resin solution or emulsicon after coating. In the latter case, a hot air supply device 136 is provided. Processing M1
12 is provided with a funnel 14 at the top, and a resin liquid such as a resin emulsion or a liquid radiation-curable resin 15 is supplied into the processing tank 12 from this funnel I4. Element wire pulled out from the wire hanging machine 11 (core material 3 or wire with coating layer 5 provided on it) +6
is the treatment M from the pore 12a provided on the artificial side of the treatment tank 12.
After the resin liquid etc. 15 is attached to the surface, it is pulled out from the hole of the die 17. Excessive resin liquid adhering to the surface of the wire is wiped off by the die 17 on the exit side. process! The wire exiting t112 is guided to a drying device or irradiation device 13, where the resin adhering to the surface is dried or cured by ultraviolet irradiation or electron beam irradiation.

[Example 1] A spinning solution prepared by dissolving polyethylene with a q-average molecular weight of 4 million in decalin was extruded from a spinneret into water at 25°C to form a gel-like fiber, which was then drawn in multiple stages. A plurality of 7 μm polyethylene fibers with high strength and high elastic modulus (strength: 68 g/d, initial elastic modulus of drawn fibers: 2.500 g/d) were bundled and used as the core material 3. This core material 3 was dipped in a resin solution and coated using the apparatus shown in FIG. 2, and then dried with hot air at about 100° C. to form an intermediate layer 6 on the surface. As the resin liquid, a 50% solution of polyurethane resin (Parabrene manufactured by Nippon Elastra Co., Ltd.) dissolved in dimethylformamide was diluted twice with methyl ethyl ketone. Next, a coating layer 5 made of a metal braid was formed on the outer periphery of the resin-coated core material using a braiding machine (circular braiding machine No. 101 manufactured by Kokubu Iron Works) under the following conditions.

Number of braids: 16 Weight: No. 1 to No.-25 Main rotation speed: 129/min Feed gear: 82:8 to 82:45 The metal wires used as the material for forming the braids include various diameters as shown in Table 1. Thin tungsten wire (W) or stainless steel wire (SU
A bundle of one or two S hard wires was used. A wire rod with a covering layer 5 made of metal braided wire formed on the outer periphery was dipped and coated in ultraviolet curable resin using the apparatus shown in FIG. 2, and then dried and cured by ultraviolet irradiation to form a surface layer. lamp). As the ultraviolet curable resin, Aronix 6100 (manufactured by Toagosei Co., Ltd., a solvent-free curable paint) is used.
ester acrylate oligomer) as a photosensitizer.
．． 5% by weight Suntray 11000 (manufactured by Mitsubishi Yuka Net 1)
was added and used.

Table 1 shows the tensile strength (expressed as breaking load) of the fishing line thus obtained. As is clear from Table 1, the obtained fishing line had high strength, was flexible and had good line handling, was easy to tie a fishhook, etc., and had little curling or curling. Furthermore, this fishing line was provided with a covering layer 5 made of a metal braided wire and had a high specific gravity, so there was no line dandruff and the line could be kept in a substantially straight shape even in deep sea. Furthermore, water drained well when winding at high speed with a reel, and there was no electrolytic corrosion of the metal reel.

[Example 2] VR-90 (manufactured by Showa Kobunshi Co., Ltd., epoxy acrylate oligomer) and Aronix 6100 as radiation-curable paints
(Manufactured by Toagosei Co., Ltd., ester acrylate oligomer)
Using a 1=1 mixture of
The same procedure as in Example 1 was carried out except that the surface layer 7 was formed by curing by irradiating with.

The obtained fishing line is a practical example! It had similar performance.

[Example 3] As the radiation-curable paint, an ultraviolet-curing epoxy resin (Azoka Ultra Set, manufactured by Jiryuka Co., Ltd.) with 1.5% by weight of Santore #1OOO (manufactured by Mitsubishi Yuka Co., Ltd.) was used. was carried out in the same manner as in Example 1.

The obtained fishing line had the same performance as that of Example 1.

[Effects of the Invention] The fishing line according to the present invention has high specific gravity, high strength, low elongation, excellent straightness and flexibility, and is highly practical.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of a fishing line according to the present invention, and FIG. 2 is an explanatory diagram of the configuration of a coating device. 3...Core material 5...Coating layer 6...Intermediate layer 7...Surface layer

Claims (1)

[Claims] (1) A fishing line made by providing a core material formed by bundling a plurality of polyethylene fibers with a coating layer formed by knitting fine metal wires on the outside, and applying and curing radiation-curable resin to the coating layer.