KR20220138287A - Elastic thread for fishing, method menufacturing the same and fishing tackle comprising the elastic thread - Google Patents

Abstract

The present invention provides an elastic thread for fishing which comprises: one end part to which a fishing hook is connected; and an extension part pulled from the one end part to generate tensile force and elongated at a predetermined ratio in response to the tensile force, wherein the at least a portion of the extension part comprises thermoplastic polyurethane. An objective of one embodiment of the present invention is to provide predetermined elastic force to a fishing line to prevent a caught fish from escaping from a fishing hook.

Description

An elastic yarn for fishing, a method for manufacturing an elastic yarn for fishing, and fishing equipment comprising the same

The present invention relates to an elastic yarn for fishing, a method for manufacturing an elastic yarn for fishing, and fishing gear including the same.

Generally speaking, fishing gear means fishing gear including a fishing rod and a fishing line. Here, depending on the type or case of fishing, the fishing line may selectively include a main line, a neck line, a branch line, and the like. In the case of a conventional fishing line, it is manufactured using a solid material such as nylon or carbon to improve reactivity. While fishing using such a conventional fishing line, even if the fish is caught on the hook, if the struggle is severe, the fish caught on the hook may be torn and missed. In addition, in the case of being caught in a subsea structure such as a rock, if a large amount of tension is generated on the fishing line when pulled, the fishing rod may be broken or it may be difficult to remove the fishing hook from the structure.

Despite the fact that the fishing rod is made of an elastic material, these problems persist, and the reality is that fishing gear to improve these problems is required.

Korea Public Utility Model Publication No. 1999-0021909 (June 25, 1999)

An embodiment of the present invention provides a predetermined elastic force to the fishing line for the purpose of preventing the catch from escaping from the hook when capturing the catch.

An embodiment of the present invention aims to provide a method of manufacturing an elastic yarn for fishing.

One embodiment of the present invention aims to provide a predetermined elastic force to the fishing line to be more effective fishing.

The present invention relates to an elastic yarn for fishing, a method for manufacturing an elastic yarn for fishing, and a fishing rig comprising the same, comprising: one end to which a fishing needle is connected; and an extension part that is pulled from one end to generate a tensile force and is elongated at a predetermined ratio in response to the tensile force, wherein at least a portion of the extension section includes a thermoplastic polyurethane.

In addition, the thermoplastic polyurethane is formed by polymerization between isocyanate and polyol, and the isocyanate is methylene bisphenyl isocyanate (MDI) or hexamethylene diisocyanate (HDI), and the polyol is a polyester or polyester series. of polyol, the composition ratio of the isocyanate is 30% to 35%, the composition ratio of the polyol is 60% to 65%, and the auxiliary additive including at least one of an oxidizing agent and stearic acid is further added in a composition ratio of 5% or less may be included.

In addition, in the thermoplastic polyurethane, the hardness range is determined from 35A to 80D based on the shore hardness scale, and the range of the tensile strength may be determined from 30 to 60.

In addition, the thermoplastic polyurethane may be formed with the following molecular structure.

A dehumidifying drying step of drying the moisture content of the thermoplastic polyurethane to 0.02% or less; Extrusion step of extruding the thermoplastic polyurethane satisfying the moisture content in the form of mono fibers; a stretching step of stretching the thermoplastic polyurethane within the range of 3.5 to 4 times by stretching the monofilament form molded in the extrusion step; And an annealing step of transferring at a lower speed than the immediately preceding feed rate of the thermoplastic polyurethane by the stretching roller in the stretching step; sequentially performing, a method of manufacturing an elastic yarn for fishing is provided.

And, in the extrusion step, the temperature in the extrusion section for extruding the thermoplastic polyurethane may be determined in the range of 160 degrees to 190 degrees.

In addition, the stretching step may include a first stretching step of sequentially increasing the stretching ratio and a second stretching step performed following the first stretching step.

In addition, further comprising a stabilization step comprising a stabilization step, a heating step and a third stabilization step, the first stabilization step is a step of passing the thermoplastic polyurethane through cooling water after the extrusion step, and the heating step is after the first stretching step It is a step of passing the thermoplastic polyurethane through the hot water furnace, and the third stabilization step may be a step of passing the thermoplastic polyurethane through the hot stove after the second stretching step.

It is guided by one or more guides provided in the extending direction of the fishing rod between the extended ends of the fishing rod and extended, and at least some of the entire extension section includes a fishing line including elastic yarn; one end; And an extension portion that is pulled from one end to generate a tensile force and is elongated at a predetermined ratio in response to the tensile force; and the extension portion, wherein at least a portion of the extension section comprises a thermoplastic polyurethane, may include a fishing rig.

In addition, the fishing line is guided by a guide and includes a main line including a section extending and a section extending freely, a neck line that is a section that is additionally extended by being connected to the extended end of the original line, and the elastic yarn is in one or more sections of the main line or the neck line. can be applied.

In addition, it includes a branch line that is connected to the side from the extension direction of the neck line and the neck line and extends freely, and the elastic yarn can be applied to one or more sections of the main line, the neck line and the branch line.

According to an embodiment of the present invention, by providing a predetermined elastic force to one or more of the main line, the neck line and the branch line, the fishing hook is more easily embedded in the catch during the capture of the catch, thereby preventing the catch from leaving the hook It is possible to provide an elastic yarn for fishing.

In addition, even when the fishing hook is caught on the ground or rock, it is possible to remove it more easily by using the elasticity of the elastic yarn.

According to an embodiment of the present invention, it is possible to provide a method of manufacturing an elastic yarn for fishing composed of a thermoplastic polyurethane resin having a predetermined composition ratio.

According to an embodiment of the present invention, it is possible to provide a fishing rig for more effective fishing by providing a predetermined elastic force to one or more of the main line, the neck line and the branch line.

1 is a view showing a pre-tension state and a tensile state of an elastic yarn according to an embodiment of the present invention;
Figure 2 is a flow chart showing the sequence of manufacturing the elastic yarn according to an embodiment of the present invention,
3 is a view showing a second cooling step according to an embodiment of the present invention;
4 is a view showing a fishing rig comprising an elastic yarn according to an embodiment of the present invention;
5 is a view showing a section in which an elastic yarn is formed according to an embodiment of the present invention, and FIG. A diagram showing that the formed section is divided into a main line, a neck line, and a branch line.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.

In the description of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

The technical spirit of the present invention is determined by the claims, and the following examples are only one means for effectively explaining the technical spirit of the present invention to those of ordinary skill in the art to which the present invention belongs.

1 is a view showing a pre-tension state and a tensile state of an elastic yarn 100 according to an embodiment of the present invention, and FIG. 2 is a view showing the molecular structure of the elastic yarn 100 according to an embodiment of the present invention. .

1 and 2, the fishing elastic yarn 100 (hereinafter, the elastic yarn 100) is towed from one end and one end to which the fishing needle 101 is connected to generate a tensile force, and to respond to the tensile force. and an extension that elongates at a determined rate. Here, at least a portion of the extension section of the extension section may include thermoplastic polyurethane. Here, the elastic yarn means the entire extension section of the fishing line, but will be described later through an embodiment in which the extension section of the fishing line is divided into sections in FIG. 7 below.

Specifically, the thermoplastic polyurethane is formed by polymerization between isocyanate and polyol, the isocyanate is methylene bisphenyl isocyanate (MDI) or hexamethylene diisocyanate (HDI), and the polyol is polyester or polyester It may be a series of polyols. As an example of the composition ratio in which the polymerization is performed, the composition ratio of the isocyanate may be 30% to 35%, and the composition ratio of the polyol may be 60% to 65%. Furthermore, an oxidizing agent and an auxiliary additive including at least one of stearic acid may be further included in a composition ratio of 5% or less.

In addition, as for the thermoplastic polyurethane, it is preferable that the hardness range is determined from 35A to 80D based on the shore hardness scale, and the range of the tensile strength is determined from 30 to 60. In particular, in the case of the above-exemplified composition ratio, when the content of isocyanate exceeds 35%, the hardness increases, but the elastic force decreases, so it is not suitable for the elastic yarn 100 of this example, which requires a predetermined elastic force, and the polyol content is 65% Conversely, if it exceeds, the elastic force is increased, but the hardness is decreased, so that shearing of the elastic yarn 100 may easily occur.

Through these characteristics, it can be selectively determined within the composition ratio range described above. In the case of the elastic yarn 100 of this example, a needle 101 capable of catching a catch may be provided at one end as described above. When the catch fish is caught by the needle 101, it moves (M; an example of the direction of movement) to get out and writhes, and through this, the part caught in the needle 101 is torn off, and the fish can escape from the captured state. . Therefore, when the elastic yarn 100 is stretched in a predetermined section in response to the writhing of the fish, shearing of the elastic yarn 100 can be prevented while maintaining the state in which the fish is captured. As shown in FIG. 2 , the elastic yarn 100 having the above composition ratio and physical properties may have a molecular structure formed through a reaction in the polymerization process.

3 is a flowchart illustrating a procedure for manufacturing the elastic yarn 100 according to an embodiment of the present invention.

Referring to FIG. 3, a dehumidifying drying step of drying the moisture content of the thermoplastic polyurethane to 0.02% or less (S10), an extrusion step of extruding the thermoplastic polyurethane satisfying the moisture content into a monofiber form (S20), an extrusion step ( In the stretching step (S30) and the stretching step (S30) of stretching the thermoplastic polyurethane within the range of 3.5 to 4 times by stretching the monofilament form formed in S20), a speed lower than the immediately preceding feed rate of the thermoplastic polyurethane by the stretching roller in the stretching step (S30) By sequentially performing the annealing step (S40) of transferring to the furnace, it is possible to prepare the elastic yarn 100, which is an embodiment of the present invention.

Here, in the case of the dehumidifying drying step (S10), a process of drying at 100 degrees for 3 hours through a dehumidifying dryer may be performed. Because of the high hygroscopicity of the thermoplastic polyurethane, it can be said that it is pre-treated to prevent decomposition of resin or the occurrence of bubbles during the extrusion process due to the moisture contained in the thermoplastic polyurethane used as a raw material by absorbing moisture in the atmosphere. have. Therefore, if it is a process of removing moisture in order to prevent such a phenomenon, the drying time and temperature conditions at 100 degrees for 3 hours may be changed.

And, in the extrusion step (S20), for example, the temperature in the extrusion section for extruding the thermoplastic polyurethane may be determined in the range of 160 degrees to 190 degrees. Furthermore, the configuration of the extrusion apparatus such as a head and dice performing extrusion may be set in the range of 175 degrees to 185 degrees, but this may be a condition that can be changed according to the size and length of the extruder.

In the stretching step (S30) proceeding thereafter, the compressed thermoplastic polyurethane may be stretched at a predetermined ratio. For example, the stretching step S30 may include a plurality of stretching steps. This will be described in more detail with reference to FIG. 4 .

On the other hand, the annealing step (S40) is to be fed at a speed lower than the feed speed by the drawing roller in the drawing step (S30), and stabilization of the drawn fiber can be performed. When the annealing step (S40) is completed, the annealing step (S40) may be repeated to additionally improve physical properties including elasticity, and may be aged in a hot air oven at a temperature of 100 for 20 hours.

4 is a flowchart illustrating a first stretching step (S30a) and a second stretching step (S30b) according to an embodiment of the present invention, and FIG. 5 is a stabilizing step (S21) and a heating step according to an embodiment of the present invention It is a flowchart showing (S31a).

Referring to FIG. 4 , the stretching step S30 may include a first stretching step S30a of sequentially increasing the stretching ratio and a second stretching step S30b performed following the first stretching step S30a. Here, in the first stretching step (S30a), stretching is performed primarily by stretching before reaching a predetermined stretching ratio by a stretching roller, and stretching is performed by physically applying a tensile or compressive force without exposure to a separate temperature environment (heating or cooling). may be a step. For example, stretching may be performed by compression through a stretching roller to narrow the cross-sectional area.

Furthermore, through the second stretching step (S30b), it is possible to stretch the thermoplastic polyurethane subjected to the primary stretching in a hot water furnace at 80 degrees while performing re-stretching at a predetermined elongation rate. Here, the predetermined elongation may be 3.5 to 4 times based on the extruded thermoplastic polyurethane.

Referring to FIG. 5 , after the first stretching step (S30a) and the second stretching step (S30b) from the extrusion step (S20), a heating step (S31a) may be additionally performed. Here, the heating step means passing the hot stove created in a temperature environment of 100 degrees through the thermoplastic polyurethane on which the previous process has been performed. This heating step (S31a) may be selectively performed once or a plurality of times.

A stabilization step (S21) performed after the extrusion step (S20) separately from the heating step (S31a) may be further included. Here, the stabilization step (S21) is to cool the extruded thermoplastic polyurethane, for example, it may be a step of cooling while passing through a cooling water of 25 degrees.

6 is a view showing a fishing rig including an elastic yarn 100 according to an embodiment of the present invention.

Referring to FIG. 6 , the fishing rig may include a fishing rod 200 and a fishing line. Here, the fishing line is extended by being guided by one or more guides provided in the extension direction of the fishing rod 200 to the extended end of the fishing rod 200 , and at least some of the entire extension section may include the elastic yarn 100 . In this example, since the entire section of the fishing line, the elastic section (Aa) may also be the entire section of the fishing line.

Specifically, the elastic yarn 100 may include one end to which the fishing hook 101 is connected and an extension portion that is pulled from one end to generate a tensile force and is elongated at a predetermined ratio in response to the tensile force. Here, at least a portion of the extension section of the extension section may include thermoplastic polyurethane. The thermoplastic polyurethane included in the extension means the aforementioned elastic yarn 100, and the included section may vary depending on the configuration of the fishing line.

For example, the fishing line may include only the main line 110, and may further include a line 120 connected to the main line 110 and the line 110, and a branch line extending from the neck line 120 ( 130) may be further included. The case where the fishing line includes only the original line 110 and the original line 110 is formed of the elastic yarn 100 is as described with reference to FIG. 1 . Other examples of the latter will be described in more detail with reference to FIG. 7 below.

7 is a view showing a section in which the elastic yarn 100 is formed according to an embodiment of the present invention. 7( b ) is a view showing that the section in which the elastic yarn 100 is formed is divided into a main line 110 , a neck line 120 , and a branch line 130 .

As described above, the fishing line may include a main line 110 , a neck line 120 and a branch line 130 . Here, when the embodiment in which the original line 110 and the collar 120 are provided will be described in detail with reference to FIG. ), including a collar 120 which is a section that is further extended by being connected to the extension end of the original line 110 , and the elastic yarn 100 may be applied to one or more sections of the original line 110 or the neck line 120 .

In this case, the original line 110 may be the first section A1, and the collar 120 may be the second section A2. The length of the first section (A1) and the second section (A2) may vary according to the extension length of the original line (110) and the collar (120). The elongation rate of the elastic yarn 100 may be manufactured by selectively adjusting tensile strength and elasticity so that it can be stretched from 20% to 100% from an unstretched state. Accordingly, the elastic yarn 100 is applied to both the original line 110 and the neck line 120 , and the elastic yarn 100 to which different physical properties are applied may be applied. For example, when the original line 110 is formed with relatively high tensile strength and low elasticity, the neck line 120 has excellent elasticity and can be selectively tuned such that the tensile strength is low. This is because the neckline 120 is a structure that can be combined with the original line 110, as the neckline 120 is selectively connected to the original line 110, the physical properties of the fishing line may vary. This may also be applied to an example further including a branch line 130 disclosed in FIG. 7(b) below.

Referring to FIG. 7 ( b ), when the fishing line includes a main line 110 , a neck line 120 , and a branch line 130 , the branch line 130 is a line of the neck line 120 and the neck line 120 . It can be freely extended by being connected laterally from the extension direction. Here, the elastic yarn 100 may be applied to one or more sections of the main line 110 , the neck line 120 , and the branch line 130 . In the example of FIG. 7( a ), a section in which the branch line 130 is additionally included and the branch line 130 is extended may be referred to as a third section A3 . The third section (A3) may be connected in the form of one or more extending laterally from the collar 120 forming the second section (A2).

Although representative embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications are possible within the limits without departing from the scope of the present invention with respect to the above-described embodiments. . Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined by the claims described below as well as the claims and equivalents.

100, 100a: elastic yarn
101, 101a: needle
110: one line
120: collar
130: branch line
200: fishing rod
M: move
Aa: elastic section
A1: 1st section
A2: 2nd section
A3 : 3rd section
S10: dehumidifying drying step
S20: Extrusion step
S21: stabilization stage
S30: Stretching step
S30a: first stretching step
S30b: second stretching step
S31a: heating step
S30: Annealing step

Claims (6)

It is formed by polymerization between isocyanate and polyol, wherein the isocyanate is methylene bisphenyl isocyanate (MDI) or hexamethylene diisocyanate (HDI), and the polyol is polyester or a polyester-based polyol, The composition ratio of the isocyanate is 30% to 35%, the composition ratio of the polyol is 60% to 65%, and a sub-additive including at least one of an oxidizing agent and stearic acid is further included in a composition ratio of 5% or less. Elastic yarn for fishing, characterized in that made of polyurethane.
A dehumidifying drying step of drying the moisture content of the thermoplastic polyurethane to 0.02% or less (S10);
Extrusion step (S20) of extruding the thermoplastic polyurethane satisfying the moisture content in the form of monofibers;
a stretching step (S30) of stretching the molded monofilament form in the extrusion step (S20) to stretch the thermoplastic polyurethane within a range of 3.5 to 4 times; and
Annealing step (S40) of transferring the thermoplastic polyurethane at a speed lower than the immediately preceding feed speed of the thermoplastic polyurethane by the drawing roller in the drawing step (S30);
3. The method according to claim 2,
A method of manufacturing elastic yarn for fishing, characterized in that it further comprises a heating step (S31a) of passing the hot stove created in a temperature environment of 100 degrees at least once after the second stretching step (S30b).
fishing rod 200; and
It is guided by one or more guides provided in the extension direction of the fishing rod 200 to the extended end of the fishing rod 200 and extends, and at least some of the entire extension section includes a fishing line including elastic yarn 100; and ,
The elastic yarn 100,
One end to which the fishing hook 101 is connected; and
An extension part that is pulled from the one end to generate a tensile force and is elongated at a predetermined ratio in response to the tensile force; and
The extension portion is a fishing rig, characterized in that at least a portion of the extension section comprises a thermoplastic polyurethane.
5. The method according to claim 4,
The fishing line is guided by the guide and includes a main line 110 including an extended section and a free extending section, a neck line 120 that is a section that is additionally extended by being connected to the extended end of the original line 110,
The elastic yarn 100 is fishing gear, characterized in that applied to one or more sections of the original line 110 or the neck line 120.
6. The method of claim 5,
and a branch line 130 that is connected to the side from the extension direction of the neck line 120 and the neck line 120 and freely extended,
The elastic yarn 100 is fishing gear, characterized in that applied to one or more sections of the original line 110, the neck line 120 and the branch line 130.

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