JP4016095B2 - Fishing line and manufacturing method thereof - Google Patents

Description

表１の結果から明らかなように、本発明による釣糸は、強度、しなやかさ、伸びおよび伸長回復性が均衡にすぐれると共に、棚ずれやペイントずれを起こしにくく良好な釣果を発揮するものであった。
【００４３】
一方、本発明外の比較例１〜１０の場合は、釣糸、特にへら用道糸として利用する場合の伸長回復率特性が不十分であったり、安定した生産ができないものであった。
【００４４】
すなわち、熱セット倍率が高すぎる比較例１の場合は、遅延回復率が大きくなりすぎて寸法安定性に欠けるものになってしまい、また熱セット倍率が低すぎる比較例２の場合は、セッター内で糸が弛んでしまうため安定した生産ができず、正常なサンプリングもできなかった。
【００４５】
熱セット温度が高すぎた比較例３の場合は、瞬間回復率、遅延回復率がともに低く、セッター内で熱劣化をこしてしまい、釣糸として求められる強度も低下してしまった。逆に熱セット温度が低すぎる比較例４の場合は、遅延回復率が大きくなりすぎて寸法安定性に欠けるものになってしまった。
【００４６】
熱セット時のセッター通過時間が短かすぎた比較例５の場合は、遅延回復率が大きくなりすぎて寸法安定性に欠けるものになってしまった。また、熱セット時のセッター通過時間が長すぎた比較例６の場合は、熱セットが利きすぎて瞬間回復率、遅延回復率がともに低く、寸法安定性に欠けるものになってしまった。
【００４７】
セッター内の気体が動いていない比較例７の場合は、充分なセット効果が得られず、遅延回復率が大きくなりすぎて寸法安定性に欠けるものになってしまった。
【００４８】
また、セッター内の気体が動いていなくて熱セット効率が悪いため、セット効果を上げようとして熱セット温度を高くした比較例８の場合は、セッター内で糸が溶断してしまいサンプリングができなかった。同じくセット効果を上げようと熱セット時間を延ばした比較例９の場合は、モノフィラメントが熱劣化を起こしてしまい、目標とする伸長回復率が得られないばかりか、極端な強度低下を起こして釣糸として不適当なものになってしまった。
【００４９】
セッター内の気体は動いているが、風速が秒速３ｍ以上の範囲を外れている比較例１０の場合は、充分な熱セット効果が得られず、遅延回復率が大きくなりすぎて寸法安定性に欠けるものになってしまった。
【００５０】
【発明の効果】
以上説明したように、本発明の釣糸は、強度、しなやかさ、伸びおよび伸長回復性が均衡にすぐれると共に、棚ずれやポイントずれを起こしにくく良好な釣果を発揮するというすぐれた特性を有するものであり、特にへら鮒用道糸として好適に使用することができる。
【００５１】
また、本発明の釣糸の製造方法によれば、熱セッター内の気体を循環せしめるという簡単な方法で、上記のすぐれた特性を有する釣糸を効率的に製造することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fishing line that is excellent in balance of strength, flexibility, elongation and stretch recovery properties required as a fishing line, and that exhibits good fishing results. .
[0002]
[Prior art]
Conventionally, a polyamide monofilament has been suitably used as a fishing line material taking advantage of its flexibility, high strength, and suitable elongation.
[0003]
However, since the fishing line made of this polyamide monofilament has insufficient stretch recovery, the length of the thread is likely to change due to pulling with the fish when the fish is actually caught. Because it has a problem that it is easy to cause a so-called point shift consisting of a so-called shelf shift and a change in the length of the thread from the fishing rod to the float. In particular, when it is applied to a spatula thread that dislikes shelves and point shifts, there is a drawback that the fishing results are dropped.
[0004]
In other words, in spatula fishing, it is an important requirement to raise bait accurately to the point. In order to avoid this, it is necessary to make frequent adjustments to the bottom (shelf) and to adjust the length of the road line by changing the road line. There was a problem.
[0005]
[Problems to be solved by the invention]
The present invention has been accomplished as a result of studies to solve the above-described problems in the prior art.
[0006]
Accordingly, an object of the present invention is to provide a fishing line that is suitable as a spatula line thread and its efficient, and has excellent balance of strength, suppleness, elongation and stretch recovery properties required for a fishing line, and good fishing results. Is to provide a simple manufacturing method.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the fishing line of the present invention is composed of a polyamide monofilament having a tensile strength of 6 g / d or more. The polyamide monofilament is wound around a spool, and the temperature is controlled in a temperature / humidity adjusting chamber at 20 ° C. and 65% RH. After being allowed to stand for a period of time, the elongation length of the yarn when applied with a stress of 30% of the tensile breaking strength measured under the conditions of yarn length : 250 mm and tensile speed: 300 mm / min using a tensile tester is H, 30 % , When the yarn length is returned to 250 mm at 300 mm / min which is the same as the tensile speed, the elongation length of the yarn when the stress becomes zero is H1, and the yarn length : after standing back 3 minutes until 250 mm, drawing rate: elongation length of the yarn to 300 mm / min start consuming stress will again tensioned when the H2, formula (H-H1) / H × The instantaneous recovery rate (L1) calculated by 00 is 80% or more, and the delay recovery rate (L2) calculated by the formula (H−H2) / H × 100 is in the range of 90% to 110%. And
[0008]
In the fishing line of the present invention, the polyamide monofilament has a tensile strength of 6 g / d or more. It is preferable to use at least one selected from polymers and to use as a spatula fishing road thread.
[0009]
Further, fishing line production method of the present invention having the above characteristics, melt polyamide spinning, upon heat treatment after the stretching, the heat treatment, in a setter circulated gas at least wind speed per second 3m, magnification: 0 .85 to 1 time, temperature: 150 to 200 ° C., time: 0.5 to 3 seconds .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The material polymer of the polyamide monofilament constituting the fishing line of the present invention is not particularly limited as long as it is a polyamide, but nylon 6, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12, and mutual co-polymerization of these various nylons At least one selected from coalescence, among which nylon 6, nylon 66, and nylon 6/66 copolymer are preferably used.
[0012]
These polyamides are additives such as pigments, dyes, crystallization inhibitors, copper compounds, specific gravity adjusters, water repellent treatment agents, hydrophilic treatment agents, and plasticizers, as long as they do not impair the desired properties. Can be contained.
[0013]
The polyamide monofilament constituting the fishing line of the present invention has an instantaneous recovery rate (L1) calculated by the above method of 80% or more, particularly 90% or more, and a delayed recovery rate (L2) of 90% to 110%, particularly It is important to be in the range of 95-105%, and by satisfying such conditions, when the fishing line is put to practical use, the thread stretched by pulling with the fish is restored to its original length instantaneously and with a delay. It is possible to make it possible to develop excellent elongation recovery properties.
[0014]
That is, if the instantaneous recovery rate (L1) of the polyamide monofilament is less than 80%, the road line is likely to be stretched during actual fishing, which causes a rack shift or a point shift, resulting in a decrease in fishing results.
[0015]
In addition, when the delay recovery rate (L2) of the polyamide monofilament is less than 90%, it becomes easy for the yarn to stretch during actual fishing, and when it exceeds 110%, the yarn tends to shrink during actual fishing. This is not preferable because it causes a shift or a point shift, resulting in a decrease in fishing results.
[0016]
Furthermore, it is desirable that the polyamide monofilament constituting the fishing line of the present invention has a tensile strength of 6 g / d or more, particularly 8 g / d or more, and this is necessary and sufficient when used as a fishing line, particularly as a spatula thread. High strength can be expressed.
[0017]
Next, the manufacturing method of the fishing line of the present invention having the above characteristics will be described.
[0018]
The fishing line of the present invention is manufactured by subjecting the polyamide as a raw material to an extruder-type spinning machine used for ordinary melt spinning, and producing yarn under known melt spinning / drawing conditions that have been generally employed. Can do.
[0019]
However, in the method for producing a fishing line of the present invention, it is important that the stretched polyamide monofilament is continuously or batch-wise guided to a setter and heat-treated while circulating the gas in the setter at a speed of 3 m / second or more.
[0020]
That is, when the wind speed of the gas in the setter stops or the wind speed is less than 3 m / s, it is difficult not only to make the instantaneous recovery rate and delayed recovery rate within the above ranges, but also the desired heat setting effect. In order to obtain it, it is not preferable to raise the heat setting temperature or lengthen the heat setting time because the monofilament is melted in the setter or the monofilament is thermally deteriorated even if it is not melted.
[0021]
As the gas in the setter, air, nitrogen gas, nitrogen gas / air mixed gas or the like is used. As a method of circulating the gas in the setter, a fan or a blower is disposed at an appropriate position in the setter. Then, the wind speed may be generated by their rotation.
[0022]
The upper limit of the wind speed in the setter is not particularly limited, but if the wind speed is too high, the monofilaments in the setter or the monofilament and the setter wall will come into contact with each other, and a stable quality monofilament will not be obtained. Therefore, it is usually desirable that the speed is 25 or less per second.
[0023]
Furthermore, as this heat treatment condition, it is important to adopt a relaxation heat treatment at a magnification of 0.85 to 1.0 times, a temperature of 150 ° C. to 200 ° C., and a heat setting time of 0.5 seconds to 3 seconds.
[0024]
That is, as the heat setting magnification in the above heat treatment, relaxation conditions of 0.85 times to 1.0 times, preferably 0.88 times to 0.95 times are adopted, and if it exceeds 1.0 times, sufficient Without the heat setting effect, the instantaneous recovery rate and delayed recovery rate of the obtained monofilament tend to be out of the above range, and when it is less than 0.85 times, the monofilament loosens in the setter and is stable. This is not preferable because it makes production difficult.
[0025]
Further, the heat setting temperature is in the range of 150 ° C. to 200 ° C., particularly 170 ° C. to 185 ° C. If the temperature exceeds 200 ° C., the heat setting is excessive and the instantaneous recovery rate and delayed recovery of the resulting monofilament Not only the rate is out of the above range, but also the monofilament tends to undergo thermal degradation and extreme strength reduction. When the temperature is lower than 150 ° C, sufficient heat setting effect cannot be obtained, and instantaneous recovery of the obtained monofilament The rate and the delay recovery rate tend to be out of the above range.
[0026]
Furthermore, as the heat set time (passage time of the setter), a range of 0.5 seconds to 3 seconds, preferably 1 second to 2.4 seconds is adopted, and when the heat set time is less than 0.5 seconds, Sufficient heat setting effect cannot be obtained, and the instantaneous recovery rate and delayed recovery rate of the obtained monofilament tend to be out of the above range, and when it exceeds 3 seconds, the heat setting is excessive and the resulting monofilament instantaneous The recovery rate and delayed recovery rate are not only out of the above ranges, but the monofilament tends to undergo thermal degradation and cause an extreme decrease in strength.
[0027]
The yarn diameter of the polyamide monofilament obtained through the heat treatment is not particularly limited, but is 0.065 mm (0.15 G) to 0.81 mm (24 G), preferably 0.10 mm (0.35 G) to 0.4 mm. A range of (6G) is particularly desirable as a spatula thread.
[0028]
Fishing line of the present invention thus obtained, the strength, flexibility, excellent in elongation and elongation recovery is balanced, which has excellent characteristics that exhibit good fishing difficult to cause shelf shift or point deviation In particular, it can be suitably used as a spatula thread.
[0029]
【Example】
Next, although this invention is demonstrated based on an Example, evaluation of the fishing line concerning this invention was performed according to the following method.
[0030]
The sample wound on the spool was allowed to stand in a temperature / humidity adjustment chamber at 20 ° C. and 65% RH for 24 hours, and then, using a “Tensilon” RTM500 type tensile tester manufactured by Orientec Co., Ltd., yarn length: 250 mm, tensile speed: 300 mm / When the stress of 30% of the tensile breaking strength measured under the condition of 30 minutes is applied, the elongation length of the yarn is allowed to stand for 1 minute while applying the stress of H and 30%, and then the yarn is stretched at 300 mm / min which is the same as the tensile speed. Length: When returning to 250 mm, when the stress becomes zero, the length of the yarn is H1, and after returning to 250 mm, the yarn length is allowed to stand for 3 minutes, and then tension is applied again at a pulling speed of 300 mm / min. The elongation length until stress starts to be applied is H2, and the instantaneous recovery rate (L1) is calculated by the formula (H-H1) / H × 100, and the delayed recovery rate (L2) is calculated by the formula (H-H2) / H × 100. Each Calculated.
[0031]
[Tensile strength]
According to the definition of JIS L1013. In other words, after leaving the sample taken in a bowl shape to stand at a temperature of 20 ° C. and 65% RH for 24 hours, using a “Tensilon” RTM500 type tensile tester manufactured by Orientec Co., Ltd., yarn length: 250 mm, tensile speed: 300 mm / min. The tensile strength was determined by repeating the cutting strength (kgf) measured under the above conditions by the fineness.
[0032]
[Elongation at break]
According to the definition of JIS L1013. In other words, after leaving the sample taken in a bowl shape to stand at a temperature of 20 ° C. and 65% RH for 24 hours, using a “Tensilon” RTM500 type tensile tester manufactured by Orientec Co., Ltd., yarn length: 250 mm, tensile speed: 300 mm / min. The elongation was measured when the sample was cut.
[0033]
[diameter]
The major and minor diameters of the fishing line were measured with a digital micrometer (manufactured by MITUTOMO) and displayed as the average.
[0034]
[Bending hardness]
A sample cut to a length of 50 mm was left in a temperature / humidity adjustment room at 20 ° C. and 65% RH for 24 hours, and then set on a stainless steel rod with a diameter of 2 mm set at a distance of 10 mm. Hook a stainless steel hook with a diameter of 2 mm and measure the maximum bending stress (g) when drawn at a take-up speed of 50 mm / min using Minebea Co., Ltd.'s "TCM-200 Universal Tensile / Compression Tester". did.
[0035]
[Spinning property]
Sensory evaluation of melt-spinning, drawing and heat treatment through all processes, ○… Spinning is possible without any problems, Δ… Slightly loose monofilament in the setter, but almost no problem, ×… Sloppy monofilament in the setter, stable Judgment was made based on the criteria that spinning was impossible.
[0036]
[Actual fishing]
Ten fishermen were asked to perform an actual fishing test using a polyamide monofilament as a spatula thread for actual spatula fishing at a fishing pond. The evaluation results are as follows: ○… There is little change in the dimensions of the fishing line, and she is not worried about the shelves and points. Also, the fishing results are good. And the reworking of the device had to be done, and the fishing results were judged on the basis of bad standards.
[0037]
[Example 1]
A raw material composition obtained by adding 20% by weight of nylon 66 chips to a nylon 6/66 copolymer chip and adding 0.01% by weight of color powder as a colorant and stirring and blending is supplied to an extruder type spinning machine. The melt was melted at a temperature of 290 ° C., extruded through a die having a hole diameter of 1.0 mm, and immediately cooled and solidified in a cold water bath at 10 ° C. to obtain an undrawn yarn.
[0038]
The undrawn yarn was continuously drawn at a first stage drawing condition: 3.8 times in water vapor at 100 ° C., and then at the second stage condition: 1.55 times in an inert gas at 226 ° C. (total drawing) After drawing the air at 185 ° C. to a setter that was circulated at a wind speed of 20 m / s by a fan and performing a heat setting process of 1.3 seconds at a relaxation rate of 0.9 times, A finishing oil was applied by a touch roller to obtain a polyamide monofilament having a thread diameter of 0.128 mm.
[0039]
Table 1 shows the physical property measurement results of the polyamide monofilament thus obtained and the evaluation results of the actual fishing properties when this is used as a spatula thread.
[0040]
[Examples 2-3]
The polyamide monofilament obtained in the same manner as in Example 1 except that the wind speed in the setter during heat setting was changed to 30 m / s, 20 m / s, and the heat setting magnification was changed to 0.88 and 0.95 respectively. Table 1 also shows the physical property measurement results and the actual fishing property evaluation results when these are used as spatula thread.
[0041]
[Comparative Examples 1 to 10]
In Example 1, except that the heat setting conditions were changed as shown in Table 1, the physical property measurement results of the polyamide monofilaments obtained in the same manner and the evaluation of the actual fishing property when these were used as spatula thread yarns The results are also shown in Table 1.
[0042]
[Table 1]

As is apparent from the results in Table 1, the fishing line according to the present invention has a good balance of strength, flexibility, elongation and stretch recovery, and exhibits good fishing results that are less likely to cause shelves and paint slippage. It was.
[0043]
On the other hand, in the case of Comparative Examples 1 to 10 outside the present invention, the elongation recovery rate characteristic when used as a fishing line, especially a spatula thread, was insufficient, or stable production was not possible.
[0044]
That is, in the case of Comparative Example 1 in which the heat set magnification is too high, the delay recovery rate becomes too large, resulting in lack of dimensional stability, and in the case of Comparative Example 2 in which the heat set magnification is too low, As the yarn loosened, stable production was not possible and normal sampling was not possible.
[0045]
In the case of Comparative Example 3 in which the heat setting temperature was too high, both the instantaneous recovery rate and the delayed recovery rate were low, which caused thermal deterioration in the setter, and the strength required for the fishing line also decreased. On the contrary, in the case of Comparative Example 4 where the heat set temperature is too low, the delay recovery rate becomes too large and the dimensional stability is lacking.
[0046]
In the case of Comparative Example 5 in which the setter passage time at the time of heat setting was too short, the delay recovery rate was too large and the dimensional stability was lacking. Further, in the case of Comparative Example 6 in which the setter passage time during heat setting was too long, the heat setting was too good, both the instantaneous recovery rate and the delayed recovery rate were low, and the dimensional stability was lacking.
[0047]
In the case of Comparative Example 7 in which the gas in the setter did not move, a sufficient setting effect could not be obtained, and the delayed recovery rate became too large, resulting in lack of dimensional stability.
[0048]
In addition, since the heat in the setter is not moving and the heat setting efficiency is poor, in the case of Comparative Example 8 in which the heat setting temperature is increased in order to increase the setting effect, the yarn melts in the setter and sampling cannot be performed. It was. Similarly, in the case of Comparative Example 9 in which the heat setting time was extended in order to increase the setting effect, the monofilament was thermally deteriorated, and the target elongation recovery rate could not be obtained. It has become inappropriate.
[0049]
In the case of Comparative Example 10 in which the gas in the setter is moving but the wind speed is out of the range of 3 m / s or more, a sufficient heat setting effect cannot be obtained, and the delay recovery rate becomes too large, resulting in dimensional stability. It has become a lack.
[0050]
【The invention's effect】
As described above, the fishing line of the present invention have strength, flexibility, excellent in elongation and elongation recovery is balanced, excellent characteristics that exhibit good fishing difficult to cause shelf shift or point deviation In particular, it can be suitably used as a spatula thread.
[0051]
In addition, according to the method for manufacturing a fishing line of the present invention, a fishing line having the above-described excellent characteristics can be efficiently manufactured by a simple method of circulating the gas in the heat setter.

Claims (5)

The polyamide monofilament is made of a polyamide monofilament. The polyamide monofilament is wound on a spool, left in a temperature / humidity adjustment room at 20 ° C. and 65% RH for 24 hours, and then, using a tensile tester, a yarn length: 250 mm, a tensile speed: 300 mm / min. The elongation length of the yarn when subjected to a stress of 30% of the tensile breaking strength measured under the conditions of H was left for 1 minute while applying the stress of 30%, and then the yarn length at 300 mm / min, the same as the tensile speed. : When returning to 250 mm, when the stress becomes zero, the elongation length of the yarn is H1, and after returning to 250 mm and leaving for 3 minutes, the tension is applied again at a tension rate of 300 mm / min. elongation length of the yarn to begin consuming when the H2, formula (H-H1) / instantaneous recovery rate calculated by the H × 100 (L1) is 80% or more, and formula (H-H2) / Fishing line delayed recovery rate calculated in × 100 (L2) is equal to or in the range of 90% to 110%. The fishing line according to claim 1, wherein the polyamide monofilament has a tensile strength of 6 g / d or more. The polyamide monofilament is composed of at least one selected from nylon 6, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12, and a copolymer of these various nylons. 2. The fishing line according to 2. The fishing line according to any one of claims 1 to 3, wherein the fishing line is a spatula fishing road line. When the polyamide is melt-spun, stretched, and then heat-treated, the heat treatment is performed in a setter in which gas is circulated at a wind speed of 3 m / s or more, magnification: 0.85 to 1 time, temperature: 150 to 200 ° C., time: 0 The method for producing a fishing line according to any one of claims 1 to 4, wherein the method is performed under a condition of 5 to 3 seconds.