JPS62282018A - Anti-fouling monofilament - Google Patents

Anti-fouling monofilament

Info

Publication number
JPS62282018A
JPS62282018A JP12274086A JP12274086A JPS62282018A JP S62282018 A JPS62282018 A JP S62282018A JP 12274086 A JP12274086 A JP 12274086A JP 12274086 A JP12274086 A JP 12274086A JP S62282018 A JPS62282018 A JP S62282018A
Authority
JP
Japan
Prior art keywords
net
polyester resin
monofilament
thermoplastic polyester
pellets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12274086A
Other languages
Japanese (ja)
Inventor
Akio Sawashita
澤下 明夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP12274086A priority Critical patent/JPS62282018A/en
Publication of JPS62282018A publication Critical patent/JPS62282018A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:Anti-fouling monofilaments, obtained by blending a thermoplastic polyester resin with (alloy) power, e.g. silver, tin, copper, etc., and capable of preventing attaching and growing of algae or shells by effect of metal ions coming out of the metal powder. CONSTITUTION:Monofilaments obtained by blending (A) a thermoplastic polyester resin with (B) preferably 30-70wt%. more preferably 50wt% metal powder, e.g. silver, tin, copper, etc., or metal powder of various alloys of the metals, kneading the resultant blend in an extruder while heating at 220-240 deg.C to give pellets of a given shape, refeeding the pellets to the extruder, kneading the pellets while heating at 220-240 deg.C, extruding the kneaded pellets into a give shape, cooling and drawing the extrudate while reheating at 100-110 deg.C.

Description

【発明の詳細な説明】 3、発明の詳細な説明 〈産業上の利用分野≧ 本発明は防汚性、無毒性、強度性を、有する防汚モノフ
ィラメント、に関するものである。さらに詳しく述べれ
ば、本発明は魚類に対しては毒性が無く、しかも長期間
にわたり防汚性を持続し得る防汚モノフィラメントに関
するものである。
Detailed Description of the Invention 3. Detailed Description of the Invention <Industrial Field of Application> The present invention relates to an antifouling monofilament having antifouling properties, non-toxicity, and strength. More specifically, the present invention relates to an antifouling monofilament that is not toxic to fish and can maintain antifouling properties for a long period of time.

〈従来分野〉 近年盛んに行われている魚養殖用生簀網や、定置網にお
いては長時間にわたって漁網を海水中に浸漬しなければ
ならないが、その間にカサネヵンザシ、珪藻、イ貝、フ
ジッボ等の水中生物が、漁網やそれを形成するロープに
付着し、網目を閉塞するた吟、海水移動が否充分となり
、酸素欠乏などによる魚類の生存に悪影響を及ぼし、或
いは網の耐久性を低下せしめる。
<Conventional field> Fishing nets for fish cultivation, which have become popular in recent years, and fixed nets must be immersed in seawater for a long period of time, during which time aquatic organisms such as snails, diatoms, mussels, and Fujibbo are removed. However, it adheres to fishing nets and the ropes that form them, blocking the nets and making it difficult for sea water to move sufficiently, which adversely affects the survival of fish due to lack of oxygen, or reduces the durability of the nets.

特に、はまち、ふり養殖においてはハダ虫が付着し血を
吸うので魚はそれを取り除くため漁網でこする習性があ
るが、その時にフジッボが付着していると、外皮に切傷
が付きそこに化膿菌が入り、化膿性疾患にか−り、更に
それが蔓延し大量斃屍に至る。
In particular, in hamachi and furi farming, the fish attach themselves and suck the blood, so the fish have a habit of rubbing them with a fishing net to remove them, but if the worms are attached at that time, the cut on the outer skin may become infected, and it may become infected. Bacteria enters, causing a purulent disease that spreads further and leads to mass deaths.

又定置網においては海流抵抗の増大による網成りの不良
、重量増加による架設、引上げの困難などをもたらす原
因になる。このため漁網を毒性の強い銅化合物又は、錫
化合物等が含まれている防汚処理剤に浸漬して、水中生
物の付着を防止することが行われている。しかしこのよ
うな防汚処理剤の防汚効果は、1〜2ケ月程度しかなく
、従って1年中組替消毒、防汚処理の連続である。この
ための人件費は真人なものでこれらのことが漁業経営者
を圧迫している現状である。
In addition, in fixed nets, the increase in ocean current resistance causes poor net formation, and the increased weight makes it difficult to erect and haul up. For this reason, fishing nets are dipped in antifouling agents containing highly toxic copper compounds or tin compounds to prevent aquatic organisms from adhering to them. However, the antifouling effect of such an antifouling treatment agent only lasts about 1 to 2 months, so recombination disinfection and antifouling treatment must be continued throughout the year. The labor costs for this are substantial, and these are putting pressure on fishery managers.

又か\る生簀用の網として、網生簀の形状保持性の良好
な金属製網生簀が用いられ、更に防汚性、耐食性、耐摩
耗性等の特性をも考慮し、亜鉛メッキ鋼線製の網生簀が
用いられていた。
In addition, metal nets are used as the nets for the fish cages, as they have good shape retention properties, and in consideration of properties such as antifouling properties, corrosion resistance, and abrasion resistance, mesh nets made of galvanized steel wire are used. Net cages were used.

しかしながら」−記亜鉛メツキ鋼線製の網生簀において
は、波浪に対する形状保持性は良好であるが、防汚性、
海水に対する耐食性、耐摩耗性の点において今一つ満足
すべきものではない。又亜鉛メッキ鋼線の亜鉛メッキの
亜鉛が海水に溶け、養殖魚中の残留亜鉛が天然魚の2倍
以上も含まれていることも判った。
However, although net cages made of galvanized steel wire have good shape retention against waves, they have poor stain resistance.
It is not satisfactory in terms of corrosion resistance and abrasion resistance against seawater. It was also found that the zinc in the galvanized steel wire dissolves in seawater, and that the residual zinc in farmed fish is more than twice that of wild fish.

〈発明が解決しようとする問題点〉 そこで本発明は、上記従来の漁網及び金属製金網生簀の
欠点に対処し、水中生物の排除に有効で且つ、魚類に対
しては無害であり、しかも長期間にわたり防汚効力を持
続することを目的とする。
<Problems to be Solved by the Invention> Therefore, the present invention addresses the above-mentioned drawbacks of the conventional fishing nets and metal wire nets, and is effective in eliminating aquatic organisms, harmless to fish, and long-lasting. The purpose is to maintain the antifouling effect over a period of time.

〈問題点を解決するための手段〉 本発明は前記の必要要件を表面処理でなく、材料自体で
解決するものである。即ち、本発明の防汚モノフィラメ
ントは、防汚性の強い金属粉を、熱可塑性ポリエステル
樹脂に混合したものである。
<Means for Solving the Problems> The present invention solves the above-mentioned requirements not by surface treatment but by the material itself. That is, the antifouling monofilament of the present invention is a mixture of metal powder with strong antifouling properties and thermoplastic polyester resin.

即ち防汚性の強い金属粉として、銀、錫、銅、又はこれ
らの合金粉があり、そのいずれを用いても良いがコスト
面を考慮すると、銅粉が適当である。
That is, metal powders with strong antifouling properties include silver, tin, copper, or alloy powders of these, and any of these may be used, but copper powder is suitable in terms of cost.

本発明の防汚モノフィラメントの製造方法は例えば次の
とおりである。
The method for producing the antifouling monofilament of the present invention is, for example, as follows.

熱可塑性ポリエステル樹脂に銅粉又は、銅合金粉を、3
0〜70重量%好ましくは50重量%混合し、押し出し
機により約、220〜240℃に加熱混練し、所定形状
のベレットを製造する。これを再度押し出し機にかけ約
、220〜240℃に加熱混練し所定形状に押し出し後
、冷却したのち約100〜110°Cに再加熱しながら
延伸をかけ直径約、1〜3 m++のモノフィラメント
を製造するものである。
Add copper powder or copper alloy powder to thermoplastic polyester resin, 3
0 to 70% by weight, preferably 50% by weight, is mixed and heated and kneaded at about 220 to 240°C using an extruder to produce pellets of a predetermined shape. This is heated and kneaded in an extruder again to about 220-240°C, extruded into a predetermined shape, cooled, and then stretched while being reheated to about 100-110°C to produce a monofilament with a diameter of about 1-3 m++. It is something to do.

以上、本発明について幾通りかの実施例を挙げその成果
を述べる。各実施例の%はいずれも重量基準である。
In the above, several embodiments of the present invention will be described and their results will be described. All percentages in each example are by weight.

実施例1 熱可塑性ポリエステル樹脂30%、銅粉70%を混合し
た直径約2.81のモノフィラメントを製造した。これ
を目金30flの亀甲網に編網し、巾約1m、長さ約3
.5mに裁断し試験網とした。これに錘を付は上部約0
.5mを残し海中に吊下げた。
Example 1 A monofilament having a diameter of about 2.8 mm was manufactured by mixing 30% thermoplastic polyester resin and 70% copper powder. This is knitted into a tortoiseshell net with a 30fl eye, about 1m wide and about 3cm long.
.. It was cut into 5m lengths and used as a test net. Attach a weight to this at about 0 at the top.
.. It was suspended into the sea leaving a distance of 5m.

比較例として熱可塑性ポリエステル樹脂100%で、直
径約2.81璽のモノフィラメントを製造した。
As a comparative example, a monofilament having a diameter of about 2.81 mm was manufactured from 100% thermoplastic polyester resin.

これを目金30nの亀甲網に編網し、巾約1m、長さ約
3.5mに裁断し試験網とした。これに錘をつけ上部約
0.5 mを残し海中に吊下げた。試験期間は24ケ月
間とし、3月上旬より行った。結果は次に示すとおりで
ある。効力の判定は付着生物の発生状況により次の段階
記号で行った。
This was knitted into a tortoiseshell net with a grain size of 30 nm, and cut into a test net having a width of about 1 m and a length of about 3.5 m. A weight was attached to this and it was suspended in the sea leaving about 0.5 m above. The test period was 24 months and began in early March. The results are shown below. Efficacy was judged using the following stage codes depending on the occurrence of attached organisms.

(以下余白) 表−1 ±    はとんど付着物が見られないもの士    
わずかに付着物が見られるもの千十   少量の付着物
が見られるもの+++  かなりの付着物が見られるも
の十++十 大量の付着物が見られるものく効果〉 この表−1により明らかなように、本発明の試験網の汚
れはほとんどなく、又時期によっては少量藻類の付着も
見られたが、風浪のあるたびにこれらの藻類は洗い落と
されるようである。又はまち養殖の天敵であるイ貝、フ
ジッボ等の付着は全くなかった。試験網上部の大気中の
暴露部分の劣化も見られなかった。それに比し、比較例
の試験網には、イ貝、フジッボ、カサネカンザシ、珪藻
等が網の全面を覆い被さるように付着していた。
(Left below) Table 1 ± is the case where no deposits are observed.
100 cases with a small amount of adhesion 100 cases with a small amount of adhesion +++ 10 + + 10 with a considerable amount of adhesion 10 + + 10 cases with a large amount of adhesion There was almost no dirt on the test net of the present invention, and a small amount of algae was observed depending on the season, but these algae seemed to be washed off every time there was wind and waves. Moreover, there was no attachment of mussels, barnacles, etc., which are the natural enemies of community aquaculture. No deterioration was observed in the upper part of the test net exposed to the atmosphere. In contrast, the test net of the comparative example had mussels, barnacles, snails, diatoms, etc. attached so as to cover the entire surface of the net.

又上部の大気中の暴露部分の劣化が見られた。Deterioration was also observed in the upper part exposed to the atmosphere.

実施例2 熱可塑性ポリエステル樹脂40%、銅粉60%を混合し
た直径約、2.811のモノフィラメントを製造した。
Example 2 A monofilament having a diameter of approximately 2.81 mm was manufactured by mixing 40% thermoplastic polyester resin and 60% copper powder.

これを目金30 **の亀甲網に編網し、巾約1m、長
さ約3.5mに裁断し試験網とした。
This was knitted into a tortoiseshell net with a mesh size of 30**, and cut into a test net with a width of about 1 m and a length of about 3.5 m.

これに錘を付は上部約0.5 mを残し海中に吊下げた
。比較例として熱可塑性ポリエステル樹脂100%で、
直径約2.8鰭のモノフィラメントを製造した。これを
目金30鶴の亀甲網に編網し、巾約1m、長さ約3.5
mに裁断し、試験網とした。これに錘を付は上部0.5
 mを残し海中に吊下げた。試験期間は24ケ月間とし
、3月上旬より行った。
A weight was attached to this and it was suspended in the sea leaving about 0.5 m above. As a comparative example, 100% thermoplastic polyester resin was used.
Monofilaments with a diameter of approximately 2.8 fins were produced. This is knitted into a tortoiseshell net with 30 cranes of eyes, about 1m wide and about 3.5m long.
It was cut into a length of 1.5 m and used as a test net. Attach a weight to the upper part of 0.5
The ship was suspended in the sea, leaving a length of m. The test period was 24 months and began in early March.

結果は次に示すとおりである。効力の判定は付着物の発
生状況により表−1と同しように判断した。
The results are shown below. Efficacy was judged in the same way as Table 1 based on the occurrence of deposits.

表−2 く効果〉 この表−2により明らかなように、本発明の製法による
試験網の汚れはほとんどなく防汚効果は良好である。又
銅粉量が60%と70%の防汚効果の違いはほとんどな
かった。
Table 2 Effect> As is clear from Table 2, there was almost no staining on the test net produced by the manufacturing method of the present invention, and the antifouling effect was good. Furthermore, there was almost no difference in the antifouling effect when the amount of copper powder was 60% and 70%.

実施例3 熱可塑性ポリエステル樹脂50%、銅粉50%を混合し
た直径約2.8鶴のモノフィラメントを製造した。これ
を目金30mの亀甲網に編網し、これを巾約1m、長さ
約3.5mに裁断し試験網とした。これに錘を付は上部
約0.5mを残し海中に吊下げた。比較例と1て熱可塑
性ポリ壬ステル樹脂100%で、直径約2.811のモ
ノフィラメントを製造した。これを目金30mmの亀甲
網にW網し、巾約1m、長さ約3.5mに裁断し試験網
とした。
Example 3 A monofilament having a diameter of approximately 2.8 mm was manufactured by mixing 50% thermoplastic polyester resin and 50% copper powder. This was knitted into a tortoise shell net with a mesh size of 30 m, and this was cut into a test net with a width of about 1 m and a length of about 3.5 m. A weight was attached to this and it was suspended in the sea leaving about 0.5m above. As a comparative example, a monofilament having a diameter of about 2.81 mm was manufactured from 100% thermoplastic polyester resin. This was made into a W net with a tortoise shell mesh of 30 mm, and cut into a test net with a width of about 1 m and a length of about 3.5 m.

これに錘を付は上部約0.5 mを残し海中に吊下げた
。試験期間は24ケ月間とし、3月上旬より行った。結
果は次に示すとおりである。効力の判定は付着生物の発
生状況により、表−1と同じように判断した。
A weight was attached to this and it was suspended in the sea leaving about 0.5 m above. The test period was 24 months and began in early March. The results are shown below. Efficacy was judged in the same manner as in Table 1, depending on the occurrence of attached organisms.

表−3 く効力〉 この表−3により明らかなように、本発明の試験網の汚
れはほとんどなく、又物性の劣化も見られなかった。
Table 3 Effectiveness As is clear from Table 3, there was almost no staining on the test net of the present invention, and no deterioration of physical properties was observed.

実施例4 熱可塑性ポリエステル樹脂60%、銅粉40%を混合し
た直径約、2.8鶴のモノフィラメントを製造した。こ
れを目金30酊の亀甲網に編網し、巾約1m、長さ約3
.5mに裁断し試験網とした。
Example 4 A monofilament having a diameter of about 2.8 mm was produced by mixing 60% thermoplastic polyester resin and 40% copper powder. This is knitted into a tortoiseshell net with a mesh size of 30 mm, about 1 m wide and about 3 m long.
.. It was cut into 5m lengths and used as a test net.

これに錘を付は上部約0.5 mを残し海中に吊下げた
。比較例として熱可塑性ポリエステル樹脂100%で、
直径約2.8 mmのモノフィラメントを製造した。こ
れを目金30mの亀甲網にWR網し、巾約1m、長さ約
3.5mに裁断し試験網とした。これに錘を付は上部約
0.5 mを残し海中に吊下げた。試験期間は24ケ月
間とし、3月上旬より行った。
A weight was attached to this and it was suspended in the sea leaving about 0.5 m above. As a comparative example, 100% thermoplastic polyester resin was used.
A monofilament with a diameter of approximately 2.8 mm was produced. This was made into a WR net with a tortoise shell net of 30 m in diameter, and cut into a test net with a width of about 1 m and a length of about 3.5 m. A weight was attached to this and it was suspended in the sea leaving about 0.5 m above. The test period was 24 months and began in early March.

結果は次に示すとおりである。効力の判定は付着物の発
生状況により、表−1と同じように判断した。
The results are shown below. Efficacy was judged in the same manner as in Table 1, depending on the occurrence of deposits.

(以下余白) 表−4 〈効果〉 この表−4により明らかなように、本発明の製法による
試験網の汚れはほとんどなく、又防汚持続性も24ケ月
間ではほとんど問題はなかった。
(The following is a blank space) Table 4 <Effects> As is clear from Table 4, there was almost no staining on the test nets produced by the manufacturing method of the present invention, and there were almost no problems with the stain resistance for 24 months.

銅粉混合量も40〜70%までの間では強度性について
は、や−差が出るようだが構造上においてはほとんど問
題はなかった。又劣化性も全く見られなかった。
When the amount of copper powder mixed was between 40% and 70%, there seemed to be a slight difference in strength, but there was almost no problem in terms of structure. Further, no deterioration was observed at all.

以上のように本発明の製法による防汚モノフィラメント
は長期にわたり海水中、大気中を問わず物性の劣化も見
られず、防汚性、無毒性、強度性、耐摩耗性に優れた防
汚モノフィラメントを提供するものである。
As described above, the antifouling monofilament produced by the method of the present invention shows no deterioration in physical properties over a long period of time, whether in seawater or the atmosphere, and has excellent antifouling properties, non-toxicity, strength, and abrasion resistance. It provides:

Claims (1)

【特許請求の範囲】[Claims] 熱可塑性ポリエステル樹脂に、銀、錫、銅、等の金属粉
又は、これらの金属の各種合金の金属粉を混合し、該金
属粉より出る金属イオン効果により、藻、又は貝類の付
着発生を防ぐことを特徴とする防汚モノフィラメント。
Metal powders such as silver, tin, copper, or various alloys of these metals are mixed with thermoplastic polyester resin, and the metal ion effect released from the metal powders prevents the occurrence of adhesion of algae or shellfish. An antifouling monofilament characterized by:
JP12274086A 1986-05-28 1986-05-28 Anti-fouling monofilament Pending JPS62282018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12274086A JPS62282018A (en) 1986-05-28 1986-05-28 Anti-fouling monofilament

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12274086A JPS62282018A (en) 1986-05-28 1986-05-28 Anti-fouling monofilament

Publications (1)

Publication Number Publication Date
JPS62282018A true JPS62282018A (en) 1987-12-07

Family

ID=14843417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12274086A Pending JPS62282018A (en) 1986-05-28 1986-05-28 Anti-fouling monofilament

Country Status (1)

Country Link
JP (1) JPS62282018A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026610A (en) * 1988-03-08 1990-01-10 Basf Corp Yarn having antibacterial activity
US5047448A (en) * 1988-09-27 1991-09-10 Kuraray Company Limited Antimicrobial-shaped article and a process for producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026610A (en) * 1988-03-08 1990-01-10 Basf Corp Yarn having antibacterial activity
US5047448A (en) * 1988-09-27 1991-09-10 Kuraray Company Limited Antimicrobial-shaped article and a process for producing the same

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