JPH06269239A - Fishing line - Google Patents
Fishing lineInfo
- Publication number
- JPH06269239A JPH06269239A JP6175693A JP6175693A JPH06269239A JP H06269239 A JPH06269239 A JP H06269239A JP 6175693 A JP6175693 A JP 6175693A JP 6175693 A JP6175693 A JP 6175693A JP H06269239 A JPH06269239 A JP H06269239A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- starch
- fishing line
- solvent
- pva
- 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
Links
Landscapes
- Artificial Filaments (AREA)
- Biological Depolymerization Polymers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は釣糸に関するものであ
る。さらに詳細には、生分解機能を有する繊維によって
構成された釣糸に関するものである。FIELD OF THE INVENTION The present invention relates to a fishing line. More specifically, it relates to a fishing line composed of fibers having a biodegradable function.
【0002】[0002]
【従来の技術】近年、増え続けるゴミによる環境汚染に
対する人々の関心の高まりにより、プラスチック廃棄物
の処理や処分問題が深刻な社会問題となっている。2. Description of the Related Art In recent years, people's growing interest in environmental pollution due to increasing garbage has made the problem of processing and disposal of plastic waste a serious social problem.
【0003】そうした社会問題に対して、もし仮に、使
用後自然界に放棄された場合、バクテリヤや微生物など
により分解(生分解)されるもの、また紫外線などによ
り分解されるといった分解性プラスチックが必要となっ
てくる。In order to cope with such social problems, it is necessary to use degradable plastics that are decomposed (biodegraded) by bacteria or microorganisms or decomposed by ultraviolet rays if they are discarded in nature after use. Is coming.
【0004】そこで、自然界への廃棄問題の1つの対象
物となっている釣糸に関しても、上記のごときニーズに
より生分解機能を有する繊維から構成されたものが必要
となってくるのである。[0004] Therefore, as for the fishing line, which is one of the objects of the disposal problem to the natural world, the one composed of the fiber having the biodegradable function is required due to the above needs.
【0005】繊維に澱粉を含有するものの公知例として
は、特開昭55−116814号公報では特定のアルカ
リ性澱粉を含有することにより染色性を向上することを
目的としたレーヨン繊維が報告されている。また、特公
昭60−35480号公報では澱粉繊維を含む紙の製法
が公知となっているが、本発明とは発明の意図するとこ
ろや原料となる素材が全く異なるものである。As a known example of a fiber containing starch, JP-A-55-116814 reports rayon fibers for the purpose of improving dyeability by containing a specific alkaline starch. . Further, Japanese Patent Publication No. Sho 60-35480 discloses a method for producing a paper containing starch fibers, but the intended purpose of the invention and the raw material are completely different from the present invention.
【0006】[0006]
【本発明が解決しようとする課題】本発明の課題は、釣
糸として使用した後に土中や海洋中など自然界に放棄さ
れた場合、バクテリヤや微生物などにより生分解されて
しまい、環境汚染を起こさない、新規なPVA系重合体
と澱粉とからなる生分解機能を有する繊維によって構成
される釣糸を提供することを主たる課題とする。The object of the present invention is to prevent environmental pollution by being biodegraded by bacteria and microorganisms when it is abandoned to the natural world such as soil or ocean after being used as fishing line. The main object of the present invention is to provide a fishing line composed of a fiber having a biodegradable function, which is composed of a novel PVA-based polymer and starch.
【0007】[0007]
【課題を解決するための手段】上記課題を解決するた
め、本発明の釣糸は次の構成を有する。すなわち、平均
重合度が1500〜8000のポリビニルアルコール系
重合体と澱粉とが重量比で90/10〜50/50の割
合からなり、引張強度が5g/d以上、初期弾性率が1
50g/d以上の繊維からなる釣糸である。In order to solve the above problems, the fishing line of the present invention has the following constitution. That is, the polyvinyl alcohol-based polymer having an average degree of polymerization of 1500 to 8000 and the starch are in a weight ratio of 90/10 to 50/50, the tensile strength is 5 g / d or more, and the initial elastic modulus is 1.
A fishing line composed of fibers of 50 g / d or more.
【0008】本発明で用いられるPVA系重合体の平均
重合度は、得られる繊維の引張強度およびポリマのコス
トを現実的なものとすることから1500〜8000と
するものであり、好ましくは1500〜5000であ
る。The average degree of polymerization of the PVA polymer used in the present invention is 1500 to 8000, and preferably 1500 to 8000, in order to make the tensile strength of the obtained fiber and the cost of the polymer practical. It is 5000.
【0009】また、溶媒への溶解性を損なうものでなけ
れば、一部エチレン、アクリル酸、アクリロニトリルな
どを共重合したものでも良い。Further, as long as the solubility in the solvent is not impaired, a copolymer of ethylene, acrylic acid, acrylonitrile or the like may be used.
【0010】澱粉についても特に限定されるものではな
く、馬鈴薯澱粉、トウモロコシ澱粉、小麦粉澱粉、タピ
オカ、含ろうメイズなどいずれでもかまわない。The starch is not particularly limited, and may be potato starch, corn starch, wheat starch, tapioca, wax-containing maize or the like.
【0011】このようなPVAと澱粉とから構成される
繊維の引張強度は釣糸としての要求レベルや、同じ強度
であれば糸経を細くできるといった効果を引き出すため
に、より高強度のものが良く、本発明の釣糸の場合、そ
の引張強度は5g/d以上であり、好ましくは6g/d
以上である。As for the tensile strength of the fiber composed of PVA and starch, higher strength is preferable in order to bring out the effect required for fishing line and the effect that the warp can be thinned if the strength is the same. In the case of the fishing line of the present invention, its tensile strength is 5 g / d or more, preferably 6 g / d
That is all.
【0012】例えば、繊維の引張強度が5g/d未満の
場合、その使用に際しては強度不足となってしまい、上
記の効果が引き出せずに好ましくない。For example, when the tensile strength of the fiber is less than 5 g / d, the strength becomes insufficient when used, and the above effect cannot be obtained, which is not preferable.
【0013】繊維の初期弾性率については、150g/
d未満の場合には、糸に腰が不足し、わずかな魚信を鋭
敏に手元や竿先に伝達することが困難となり、釣糸とし
て好ましくない。The initial elastic modulus of the fiber is 150 g /
When it is less than d, the line lacks rigidity, and it becomes difficult to transmit a small fishstring to the hand or the tip of the rod, which is not preferable as a fishing line.
【0014】本発明に用いる繊維は前記のPVA系重合
体と澱粉とからなり、その混合比率は90/10〜50
/50重量%、好ましくは85/15〜60/40重量
%とするものである。澱粉含有量が10重量%未満にな
ると、得られる糸の強度、初期弾性率は高くなるが、生
分解時間が非常に長くなり本発明で目的とする効果が得
られなくなる。また、澱粉含有量が50重量%を越える
と得られる繊維が非常に脆くなり、強度や初期弾性率が
低いものとなってしまい充分な使用に耐えられない場合
があり好ましくない。The fiber used in the present invention comprises the above-mentioned PVA polymer and starch, and the mixing ratio thereof is 90/10 to 50.
/ 50% by weight, preferably 85/15 to 60/40% by weight. If the starch content is less than 10% by weight, the strength and initial elastic modulus of the obtained yarn will be high, but the biodegradation time will be extremely long and the desired effects of the present invention will not be obtained. Further, if the starch content exceeds 50% by weight, the obtained fiber becomes extremely brittle, and the strength and initial elastic modulus become low, which may not be able to withstand sufficient use, which is not preferable.
【0015】このPVA系重合体と澱粉との混合比率
は、90/10〜50/50重量%の範囲内で生分解に
要する時間に応じて決めることができる。The mixing ratio of the PVA polymer and starch can be determined within the range of 90/10 to 50/50% by weight according to the time required for biodegradation.
【0016】さらに、得られた繊維がマルチフィラメン
トの場合は、通常、撚りを掛けた後、その表面を樹脂な
どで固めて用いられるが、本発明の場合、10cmあたり
5〜30ターン、さらには5〜20ターンの撚りを掛け
るのが得られる釣糸としての特性および品位の面から好
ましい。Further, when the obtained fiber is a multifilament, it is usually used after being twisted and then hardened with a resin or the like, but in the case of the present invention, it is 5 to 30 turns per 10 cm, and further. Twisting for 5 to 20 turns is preferable from the viewpoint of characteristics and quality as a fishing line obtained.
【0017】そして、本発明の目的とする生分解を速や
かに行わせるために、該マルチフィラメントを加撚した
あと、その表面を被覆する樹脂としては、生分解性を有
する樹脂を用いるのが好ましい。このような樹脂として
は、自然界で生分解されるもの、具体的にはポリカプロ
ラクトン、ポリヒドロキシアルカノエート系重合体、脂
肪族ポリエステルなどが好ましい。In order to promptly carry out the biodegradation which is the object of the present invention, it is preferable to use a biodegradable resin as the resin for coating the surface of the multifilament after twisting. . As such a resin, one that is biodegradable in nature, specifically, polycaprolactone, a polyhydroxyalkanoate-based polymer, an aliphatic polyester, or the like is preferable.
【0018】次に、本発明に用いる繊維を製造する方法
としては、PVAおよび澱粉は溶融成型がその分解温度
との関係から困難であり、PVAおよび澱粉を適当な溶
媒に溶解して口金より押出した後、その溶媒を除去して
製造する溶液紡糸法が好ましい方法として例示できる。
この際の紡糸原液の溶媒としては、PVAおよび澱粉が
ともに溶解する水、ジメチルスルホキサイド(以下、D
MSO)単独またはこれらの混合溶液が用いられる。Next, as a method for producing the fiber used in the present invention, it is difficult to melt-form PVA and starch due to their decomposition temperature, and PVA and starch are dissolved in an appropriate solvent and extruded from a die. A preferred method is a solution spinning method in which the solvent is removed and then produced.
The solvent of the spinning dope at this time is water in which both PVA and starch are dissolved, dimethyl sulfoxide (hereinafter referred to as D
MSO) alone or a mixed solution thereof is used.
【0019】このような溶液紡糸法の具体例について説
明する。まず、重合度1500〜8000のPVAと澱
粉とを重量比が90/10〜50/50重量%となるよ
う混合し、溶媒に原液濃度が10〜40重量%となるよ
う分散させ、80〜120℃に加熱溶解して原液ドープ
とする。この時の原液粘度はPVAの重合度、原液濃
度、PVAと澱粉との混合比率によって異なるが、この
後の紡糸時の製糸性の観点から60℃における粘度が1
000〜4000ポイズのものが好ましい。A specific example of such a solution spinning method will be described. First, PVA having a polymerization degree of 1500 to 8000 and starch are mixed at a weight ratio of 90/10 to 50/50% by weight, and dispersed in a solvent so that the concentration of the stock solution is 10 to 40% by weight. Dissolve by heating at ℃ to make dope. The viscosity of the stock solution at this time varies depending on the degree of polymerization of PVA, the concentration of the stock solution, and the mixing ratio of PVA and starch, but the viscosity at 60 ° C. is 1 from the viewpoint of the spinnability during the subsequent spinning.
000 to 4000 poise is preferable.
【0020】また、該原液の水素イオン濃度(pH)
は、pH値が6より小さい領域で(強酸性)澱粉のエー
テル結合が切断分解されるのを有効に防ぐ観点から、ま
たpH値が9より大きい領域で(強アルカリ性)PVA
の分子鎖が切断分解されるのを有効に防ぐ観点から、p
H値は6〜9の範囲でコントロールするのが好ましい。
続いて、該原液ドープから繊維を形成させるには、公知
の溶液紡糸法のいずれでも良く、口金からポリマを溶解
した溶媒の沸点以上の雰囲気中に吐出して脱溶媒(乾
燥)する乾式紡糸、口金からポリマを溶解した溶媒と相
溶性があり、かつポリマとは非相溶性の溶媒中へ吐出し
て脱溶媒・凝固させる湿式紡糸、さらに口金から吐出
し、一旦気相部を走行させたあと凝固浴へ導入する乾湿
式紡糸のいずれの方法を用いても良い。その一例として
水を溶媒に用いた通常の乾式紡糸装置を用いる製法の一
例について説明する。The hydrogen ion concentration (pH) of the stock solution
Is effective in preventing the ether bond of the starch from being cleaved and decomposed in the pH range of less than 6 (strongly acidic), and in the pH range of more than 9 (strongly alkaline) PVA.
From the viewpoint of effectively preventing the molecular chain of cleaved from being cleaved and decomposed, p
The H value is preferably controlled within the range of 6-9.
Subsequently, in order to form fibers from the stock solution dope, any known solution spinning method may be used, and dry spinning in which the solvent is discharged from the spinneret into an atmosphere having a boiling point of the solvent in which the polymer is dissolved or higher to be removed (dried), Wet spinning that is compatible with the solvent in which the polymer is dissolved from the spinneret, and is discharged into a solvent that is incompatible with the polymer to desolvate and coagulate it, and is further discharged from the spinneret and once run in the gas phase part. Any method of dry-wet spinning introduced into the coagulation bath may be used. As an example thereof, an example of a production method using a normal dry spinning apparatus using water as a solvent will be described.
【0021】まず、該原液ドープを紡糸性を良好にする
観点から約80〜120℃に保温された紡糸口金より、
110〜140℃の雰囲気中に吐出して(紡糸ドラフト
として0.5〜4.0が好ましい)溶媒を除去した後、
適度の冷延伸を行い、さらに200〜240℃の空気ま
たは窒素雰囲気中で全延伸倍率が8〜14倍となるよう
延伸・熱処理して巻取られる。First, from the viewpoint of improving the spinnability of the stock solution dope, a spinneret kept at about 80 to 120 ° C.
After discharging in an atmosphere of 110 to 140 ° C. (preferably 0.5 to 4.0 as a spinning draft) to remove the solvent,
It is appropriately cold-stretched, further stretched and heat-treated in an air or nitrogen atmosphere at 200 to 240 ° C. so that the total stretching ratio is 8 to 14 times, and then wound.
【0022】[0022]
【実施例】以下、実施例によって本発明を具体的に説明
する。なお、本例中の各特性値は次のようにして測定さ
れたものである。EXAMPLES The present invention will be specifically described below with reference to examples. Each characteristic value in this example is measured as follows.
【0023】<繊維の強度・伸度>JIS L 101
7に準じて行った。<Fiber Strength / Elongation> JIS L 101
It carried out according to 7.
【0024】すなわち、繊維サンプルを20℃、65%
RHに温湿度調整された部屋で24時間放置後、10cm
あたり10ターンの撚りを掛けたものを“テンシロン”
DTM−4L型引張試験機(東洋ボールドウィン(株)
製)を使用して、試長25cm、引張速度30cm/分で測
定した。チャックにはコード用エアージョーを使用し
た。That is, the fiber sample was set at 20 ° C. and 65%.
10 cm after leaving for 24 hours in a room where the temperature and humidity are adjusted to RH
"Tensilon" with 10 turns per twist
DTM-4L tensile tester (Toyo Baldwin Co., Ltd.)
(Manufactured by Mitsui Chemicals Co., Ltd.) was used and the test length was 25 cm and the pulling speed was 30 cm / min. An air jaw for cord was used for the chuck.
【0025】<繊維の土中強度保持率>繊維のサンプル
を土中に埋没させ、所定日数が経過したものを取り出
し、上記した方法で残強度を測定し、その強度保持率を
算出した。<Retention rate of fiber strength in soil> A fiber sample was immersed in soil, taken out after a lapse of a predetermined number of days, the residual strength was measured by the above-mentioned method, and the strength retention rate was calculated.
【0026】(実施例1)重合度1800、ケン化度9
9.9 mol%のPVAと澱粉(コーンスターチ)とを重
量比で70/30となるよう混合し、全ポリマ濃度が3
0重量%となるよう水に分散溶解して原液を調整した。
(90℃) 次いで該原液を孔径0.1mmφ、孔数50で100℃
に保温した口金から吐出し、130℃に保温された雰囲
気中で溶媒である水を除去(乾燥)した後、約3倍の冷
延伸を行い、続いて230℃の空気雰囲気中で3.8倍
延伸して巻取った。得られた繊維の単繊維繊度は3.7
d、引張強度5.9g/d、伸度4.6%であった。Example 1 Polymerization degree 1800, saponification degree 9
9.9 mol% PVA and starch (corn starch) were mixed at a weight ratio of 70/30, and the total polymer concentration was 3
A stock solution was prepared by dispersing and dissolving it in water so that the concentration became 0% by weight.
(90 ° C.) Next, the stock solution was 100 ° C. with a pore size of 0.1 mmφ and 50
After discharging from a spinneret kept warm at 130 ° C. to remove (dry) water which is a solvent in an atmosphere kept warm at 130 ° C., cold drawing is performed about 3 times, and then 3.8 times in an air atmosphere at 230 ° C. The film was double stretched and wound. The single fiber fineness of the obtained fiber is 3.7.
d, the tensile strength was 5.9 g / d, and the elongation was 4.6%.
【0027】このあと、10ターン/10cmの撚りを掛
けて溶融状態のポリカプロラクトン(以下、PCL)に
ディップ処理することでコード表面にコーティングし
た。Thereafter, a twist of 10 turns / 10 cm was applied, and a dip treatment was performed on polycaprolactone (hereinafter referred to as PCL) in a molten state to coat the surface of the cord.
【0028】このサンプルを土中10cm下に埋没さ
せ、その強度保持率を測定したところ、12ヵ月で94
%、18ヵ月で42%と、分解による繊維の強度低下が
みられた。This sample was immersed in soil 10 cm below, and its strength retention was measured, and it was 94 after 12 months.
%, 42% at 18 months, showing a decrease in fiber strength due to decomposition.
【0029】(実施例2)重合度2300、ケン化度9
9.9 mol%のPVAと澱粉(コーンスターチ)とを重
量比で60/40となるよう混合し、全ポリマ濃度が2
5重量%となるよう水に分散溶解して原液を調整した。Example 2 Polymerization degree 2300, saponification degree 9
9.9 mol% PVA and starch (corn starch) were mixed at a weight ratio of 60/40, and the total polymer concentration was 2
A stock solution was prepared by dispersing and dissolving in water so as to be 5% by weight.
【0030】次いで該原液を孔径0.1mmφ、孔数5
0で110℃に保温した口金から吐出し、130℃に保
温された雰囲気中で溶媒である水を除去した後約2.5
倍の冷延伸を行い、続いて220℃の空気雰囲気中で
3.4倍延伸して巻取った。得られた繊維の単繊維繊度
は3.8d、引張強度5.1g/d、伸度4.1%であ
った。Next, the stock solution was treated with a hole diameter of 0.1 mmφ and a hole number of 5
It is discharged from a spinneret kept at 110 ° C at 0 ° C, and water as a solvent is removed in an atmosphere kept at 130 ° C for about 2.5
Double stretching was carried out, and subsequently, it was stretched 3.4 times in an air atmosphere at 220 ° C. and wound. The single fiber fineness of the obtained fiber was 3.8 d, the tensile strength was 5.1 g / d, and the elongation was 4.1%.
【0031】このあと実施例1と同様にPCLを表面コ
ーティングして評価用サンプルとした。このサンプルを
土中10cm下に埋没させ、その強度保持率を測定した
ところ、12ヵ月で72%、18ヵ月で14%と分解に
よる繊維の著しい強度低下がみられた。After that, PCL was surface-coated in the same manner as in Example 1 to obtain a sample for evaluation. When this sample was buried in soil under 10 cm and the strength retention thereof was measured, it was found that 72% at 12 months and 14% at 18 months, a significant decrease in strength of the fiber due to decomposition was observed.
【0032】(比較例1)重合度2600、ケン化度9
9.9 mol%のPVAと澱粉(コーンスターチ)とを重
量比で98/2となるよう混合し、全ポリマ濃度が24
重量%となるよう水に分散溶解して原液を調整した。Comparative Example 1 Polymerization degree 2600, saponification degree 9
9.9 mol% of PVA and starch (corn starch) were mixed in a weight ratio of 98/2 to give a total polymer concentration of 24.
A stock solution was prepared by dispersing and dissolving it in water so as to have a weight%.
【0033】次いで該原液を孔径0.12mmφ、孔数
50で105℃に保温した口金から吐出し、140℃に
保温された雰囲気中で溶媒である水を除去した後約3倍
の冷延伸を行い、続いて230℃の空気雰囲気中で4.
4倍延伸して巻取った。得られた繊維の単繊維繊度は
3.2d、引張強度15.3g/d、伸度4.8%であ
った。Next, the stock solution was discharged from a die having a hole diameter of 0.12 mmφ and a number of holes of 50 and kept at 105 ° C., and water as a solvent was removed in an atmosphere kept at 140 ° C., followed by cold stretching about 3 times. And then in an air atmosphere at 230 ° C.
It was stretched 4 times and wound up. The single fiber fineness of the obtained fiber was 3.2 d, the tensile strength was 15.3 g / d, and the elongation was 4.8%.
【0034】このあと実施例1と同様にPCLを表面コ
ーティングして評価用サンプルとした。このサンプルを
土中10cm下に埋没させ、その強度保持率を測定した
ところ、繊維表層部のPCLの分解は認められたが、1
2ヵ月で98%、18ヵ月で95%と繊維強度は高く、
土中での分解による強度低下が非常に小さかった。After that, PCL was surface-coated in the same manner as in Example 1 to obtain an evaluation sample. When this sample was immersed in soil 10 cm below and the strength retention was measured, decomposition of PCL in the fiber surface layer was observed, but 1
The fiber strength is high at 98% in 2 months and 95% in 18 months,
The strength decrease due to decomposition in soil was very small.
【0035】(比較例2)重合度2600、ケン化度9
9.5 mol%のPVAと澱粉(コーンスターチ)とを重
量比で40/60となるよう混合し、全ポリマ濃度が2
3重量%となるよう水に分散溶解して原液を調整した。(Comparative Example 2) Polymerization degree 2600, saponification degree 9
9.5 mol% PVA and starch (corn starch) were mixed in a weight ratio of 40/60, and the total polymer concentration was 2
A stock solution was prepared by dispersing and dissolving it in water so as to be 3% by weight.
【0036】次いで該原液を孔径0.12mmφ、孔数
50で120℃に保温した口金から吐出し、130℃に
保温された雰囲気中で溶媒である水を除去した後、冷延
伸を行ったが、延伸可能倍率は1.8倍と低く、さらに
続いての乾熱延伸では充分な延伸ができなかった。Next, the stock solution was discharged from a die having a hole diameter of 0.12 mmφ and a number of holes of 50 and kept at 120 ° C., and water as a solvent was removed in an atmosphere kept at 130 ° C., followed by cold drawing. The drawable ratio was as low as 1.8 times, and further sufficient dry drawing could not be achieved in the subsequent dry heat drawing.
【0037】(実施例3)重合度4200、ケン化度9
9.9 mol%のPVAと澱粉(コーンスターチ)とを重
量比で85/15となるよう混合し、全ポリマ濃度が2
4重量%となるよう水に分散溶解して原液を調整した。(Example 3) Polymerization degree 4200, saponification degree 9
9.9 mol% PVA and starch (corn starch) were mixed at a weight ratio of 85/15, and the total polymer concentration was 2
A stock solution was prepared by dispersing and dissolving in water so as to be 4% by weight.
【0038】次いで該原液を孔径0.1mmφ、孔数5
0で130℃に保温した口金から吐出し、140℃に保
温された雰囲気中で溶媒である水を除去した後約2.7
倍の冷延伸を行い、続いて235℃の空気雰囲気中で
5.2倍延伸して巻取った。得られた繊維の単繊維繊度
は2.6d、引張強度15.1g/d、伸度4.6%で
あった。Next, the stock solution was treated with a hole diameter of 0.1 mmφ and a hole number of 5
It was discharged from a spinneret kept at 130 ° C at 0 ° C, and water as a solvent was removed in an atmosphere kept at 140 ° C for about 2.7.
Double cold stretching was performed, and subsequently, the film was stretched 5.2 times in an air atmosphere at 235 ° C. and wound. The single fiber fineness of the obtained fiber was 2.6 d, the tensile strength was 15.1 g / d, and the elongation was 4.6%.
【0039】このあと実施例1と同様にPCLを表面コ
ーティングして評価用サンプルとした。このサンプルを
土中10cm下に埋没させ、その強度保持率を測定した
ところ、12ヵ月で96%、18ヵ月で55%と分解に
よる繊維の著しい強度低下がみられた。After that, PCL was surface-coated in the same manner as in Example 1 to obtain a sample for evaluation. When this sample was buried in soil under 10 cm and the strength retention was measured, it was 96% at 12 months and 55% at 18 months, showing a marked decrease in fiber strength due to decomposition.
【0040】(実施例4)重合度6000、ケン化度9
9.9 mol%のPVAと澱粉(コーンスターチ)とを重
量比で60/40となるよう混合し、全ポリマ濃度が2
0重量%となるよう水に分散溶解して原液を調整した。Example 4 Polymerization degree 6000, saponification degree 9
9.9 mol% PVA and starch (corn starch) were mixed at a weight ratio of 60/40, and the total polymer concentration was 2
A stock solution was prepared by dispersing and dissolving it in water so that the concentration became 0% by weight.
【0041】次いで該原液を孔径0.08mmφ、孔数
50で130℃に保温した口金から吐出し、130℃に
保温された雰囲気中で溶媒である水を除去した後約2.
7倍の冷延伸を行い、続いて240℃の空気雰囲気中で
5.4倍延伸して巻取った。得られた繊維の単繊維繊度
は2.2d、引張強度14.1g/d、伸度4.9%で
あった。Then, the stock solution was discharged from a die having a hole diameter of 0.08 mmφ and a number of holes of 50 and kept at 130 ° C., and water as a solvent was removed in an atmosphere kept at 130 ° C., and then about 2.
It was cold-stretched 7 times and subsequently stretched 5.4 times in an air atmosphere at 240 ° C. and wound. The single fiber fineness of the obtained fiber was 2.2 d, the tensile strength was 14.1 g / d, and the elongation was 4.9%.
【0042】このあと実施例1と同様にPCLを表面コ
ーティングして評価用サンプルとした。このサンプルを
土中10cm下に埋没させ、その強度保持率を測定した
ところ、12ヵ月で81%、18ヵ月で24%と分解に
よる繊維の著しい強度低下がみられた。After that, PCL was surface-coated in the same manner as in Example 1 to obtain an evaluation sample. When this sample was buried in soil under 10 cm and the strength retention thereof was measured, it was 81% at 12 months and 24% at 18 months, showing a remarkable decrease in strength of the fiber due to decomposition.
【0043】[0043]
【発明の効果】本発明の釣糸は釣糸として十分な機械特
性を有しながら生分解機能を有し、使用後、土中や海洋
中に放棄された場合、バクテリヤや微生物などによって
生分解されてしまうため、環境汚染に至らないといった
効果を奏する。INDUSTRIAL APPLICABILITY The fishing line of the present invention has biodegradability while having sufficient mechanical properties as a fishing line, and when it is abandoned in the soil or the ocean after use, it is biodegraded by bacteria and microorganisms. Therefore, it has an effect of not causing environmental pollution.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 D06M 15/11 15/333 D06M 15/333 15/11 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location D06M 15/11 15/333 D06M 15/333 15/11
Claims (2)
ニルアルコール系重合体と澱粉とが重量比で90/10
〜50/50の割合からなり、引張強度が5g/d以
上、初期弾性率が150g/d以上の繊維からなる釣
糸。1. A polyvinyl alcohol polymer having an average degree of polymerization of 1500 to 8000 and starch in a weight ratio of 90/10.
A fishing line made of fibers having a tensile strength of 5 g / d or more and an initial elastic modulus of 150 g / d or more at a ratio of ˜50 / 50.
の表面がポリカプロラクトン、ポリヒドロキシアルカノ
エート系重合体および脂肪族ポリエステルからなる群よ
り選ばれた1種以上の樹脂で被覆されていることを特徴
とする請求項1に記載の釣糸。2. The fiber is a twisted multifilament, the surface of which is coated with at least one resin selected from the group consisting of polycaprolactone, polyhydroxyalkanoate polymers and aliphatic polyesters. The fishing line according to claim 1, which is characterized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6175693A JPH06269239A (en) | 1993-03-22 | 1993-03-22 | Fishing line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6175693A JPH06269239A (en) | 1993-03-22 | 1993-03-22 | Fishing line |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06269239A true JPH06269239A (en) | 1994-09-27 |
Family
ID=13180325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6175693A Pending JPH06269239A (en) | 1993-03-22 | 1993-03-22 | Fishing line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06269239A (en) |
Cited By (9)
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JP2001253972A (en) * | 2000-03-07 | 2001-09-18 | Humatro Corp | Melt-processable starch composition |
US6709526B1 (en) | 1999-03-08 | 2004-03-23 | The Procter & Gamble Company | Melt processable starch compositions |
US6723160B2 (en) | 2002-02-01 | 2004-04-20 | The Procter & Gamble Company | Non-thermoplastic starch fibers and starch composition for making same |
US6955850B1 (en) | 2004-04-29 | 2005-10-18 | The Procter & Gamble Company | Polymeric structures and method for making same |
US6977116B2 (en) | 2004-04-29 | 2005-12-20 | The Procter & Gamble Company | Polymeric structures and method for making same |
US7029620B2 (en) | 2000-11-27 | 2006-04-18 | The Procter & Gamble Company | Electro-spinning process for making starch filaments for flexible structure |
US7276201B2 (en) | 2001-09-06 | 2007-10-02 | The Procter & Gamble Company | Process for making non-thermoplastic starch fibers |
JP2009007573A (en) * | 2000-03-07 | 2009-01-15 | Procter & Gamble Co | Melt processable starch composition |
US7947766B2 (en) | 2003-06-06 | 2011-05-24 | The Procter & Gamble Company | Crosslinking systems for hydroxyl polymers |
-
1993
- 1993-03-22 JP JP6175693A patent/JPH06269239A/en active Pending
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7524379B2 (en) | 1999-03-08 | 2009-04-28 | The Procter + Gamble Company | Melt processable starch compositions |
US6709526B1 (en) | 1999-03-08 | 2004-03-23 | The Procter & Gamble Company | Melt processable starch compositions |
US9458556B2 (en) | 1999-03-08 | 2016-10-04 | The Procter & Gamble Company | Fiber comprising polyvinylpyrrolidone |
US7041369B1 (en) | 1999-03-08 | 2006-05-09 | The Procter & Gamble Company | Melt processable starch composition |
JP2001253972A (en) * | 2000-03-07 | 2001-09-18 | Humatro Corp | Melt-processable starch composition |
JP2009007573A (en) * | 2000-03-07 | 2009-01-15 | Procter & Gamble Co | Melt processable starch composition |
US7029620B2 (en) | 2000-11-27 | 2006-04-18 | The Procter & Gamble Company | Electro-spinning process for making starch filaments for flexible structure |
US7276201B2 (en) | 2001-09-06 | 2007-10-02 | The Procter & Gamble Company | Process for making non-thermoplastic starch fibers |
US6723160B2 (en) | 2002-02-01 | 2004-04-20 | The Procter & Gamble Company | Non-thermoplastic starch fibers and starch composition for making same |
US7025821B2 (en) | 2002-02-01 | 2006-04-11 | The Procter & Gamble Company | Non-thermoplastic starch fibers and starch composition for making same |
US7960453B2 (en) | 2003-06-06 | 2011-06-14 | The Procter & Gamble Company | Crosslinking systems for hydroxyl polymers |
US7947766B2 (en) | 2003-06-06 | 2011-05-24 | The Procter & Gamble Company | Crosslinking systems for hydroxyl polymers |
US8088843B2 (en) | 2003-06-06 | 2012-01-03 | The Procter & Gamble Company | Crosslinking systems for hydroxyl polymers |
US8129449B2 (en) | 2003-06-06 | 2012-03-06 | The Procter & Gabmle Company | Crosslinking systems for hydroxyl polymers |
US8357237B2 (en) | 2003-06-06 | 2013-01-22 | The Procter & Gamble Company | Crosslinking systems for hydroxyl polymers |
US6977116B2 (en) | 2004-04-29 | 2005-12-20 | The Procter & Gamble Company | Polymeric structures and method for making same |
US9017586B2 (en) | 2004-04-29 | 2015-04-28 | The Procter & Gamble Company | Polymeric structures and method for making same |
US6955850B1 (en) | 2004-04-29 | 2005-10-18 | The Procter & Gamble Company | Polymeric structures and method for making same |
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