JP7079540B1 - Net and net manufacturing method - Google Patents

Net and net manufacturing method Download PDF

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JP7079540B1
JP7079540B1 JP2022004824A JP2022004824A JP7079540B1 JP 7079540 B1 JP7079540 B1 JP 7079540B1 JP 2022004824 A JP2022004824 A JP 2022004824A JP 2022004824 A JP2022004824 A JP 2022004824A JP 7079540 B1 JP7079540 B1 JP 7079540B1
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川 祐 介 石
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ナカダ産業株式会社
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Abstract

【課題】本発明の目的は、網地の強度利用率の向上を図った網地及び網地の製造方法を提供するものである。【解決手段】網地の製造方法は、複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交差位置において複数の素線の間に他方の素線を挿通させて無結節を製造する網地の製造方法であって、前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸１、２であり、無結節で製造された網地１０は、上撚りであり、ａ／ｂ（ａは上撚り網地の撚数、ｂは網地編網後、測定した下撚りの前記第１、第２の網地構成糸の撚数）を算出して、第１、第２の網地構成糸１、２の撚数と網地１０の撚数を決定して網地１０を製造するものである。【選択図】図３PROBLEM TO BE SOLVED: To provide a net material and a method for manufacturing the net material in which the strength utilization rate of the net material is improved. SOLUTION: In the method of manufacturing a net, a plurality of strands are twisted to form a net constituent yarn, and while the plurality of net constituent yarns are crossed, the other wire is sandwiched between the plurality of strands at the intersection position. It is a method of manufacturing a net material for producing knotless by inserting a wire, and the plurality of net material constituent yarns are the first and second netted fabric constituent yarns 1 and 2 which are under-twisted covered yarns. Yes, the net 10 manufactured without knots is an upper twist, and a / b (a is the number of twists of the upper twist net, b is the first and first lower twists measured after the net knitted net. The number of twists of the net constituent yarns of 2) is calculated, and the number of twists of the first and second net constituent yarns 1 and 2 and the number of twists of the net 10 are determined to manufacture the net 10. be. [Selection diagram] Fig. 3

Description

本発明は、網地及び網地の製造方法に係り、特に、網地の強度利用率の向上を図った網地及び網地の製造方法に関する。 The present invention relates to a net and a method for manufacturing a net, and more particularly to a method for manufacturing a net and a net for improving the strength utilization rate of the net.

通常、無結節網地（特許文献１参照）は材料である原糸を数本撚糸し（下撚り）、束ねたものをさらに撚り合わせて上撚り網地を形成する。原糸は過度に撚ると、強度が低下し（伸度は増加する）、本来の原糸のもつ強度の網地への利用率は落ちていく。一般的な無結節網地の強度利用率は４０％～５０％程度である。 Usually, in a knotless net (see Patent Document 1), several raw yarns as a material are twisted (lower twist), and bundled yarns are further twisted to form an upper twisted net. When the raw yarn is twisted excessively, the strength decreases (the elongation increases), and the utilization rate of the original raw yarn for the net material decreases. The strength utilization rate of a general knotless net is about 40% to 50%.

実用新案登録第3192209号Utility model registration No. 3192209

一方、ダイニーマ（超高分子量ポリエチレン）や、ケブラー（ポリアラミド）、ベクトラン（ポリアリレート）などの高強度スーパー繊維を使用した無結節網地はその強度利用率が非常に低く、３０％～４０％程度となっている。また、スーパー繊維は伸度が小さく、かつ摩擦も小さいため、編網時に糸が滑り、単一材料で編網するのが難しいという問題点があった。 On the other hand, the strength utilization rate of knotless netting using high-strength super fibers such as Dyneema (ultra-high molecular weight polyethylene), Kevlar (polyaramid), and Vectran (polyarylate) is very low, about 30% to 40%. It has become. Further, since the super fiber has a small elongation and a small friction, there is a problem that the yarn slips at the time of knitting and it is difficult to knit with a single material.

本発明は、上記事情を考慮してなされた網地及び網地の製造方法を提供することを目的とする。 An object of the present invention is to provide a netted material and a method for manufacturing the netted material in consideration of the above circumstances.

請求項１記載の網地の製造方法は、複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交差位置において複数の素線の間に他方の素線を挿通させて無結節を製造する網地の製造方法であって、前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸であり、無結節で製造された前記網地は、上撚りであり、ａ／ｂ（ａは上撚り網地の撚数、ｂは網地編網後、測定した下撚りの前記第１、第２の網地構成糸の撚数）が０．５６～０．６３の範囲で網地を製造するものであり、
前記第１の網地構成糸の芯糸は、スーパー繊維であり、前記第２の網地構成糸の芯糸は、スーパー繊維である。 In the method for manufacturing a net according to claim 1 , a plurality of strands are twisted to form a net constituent yarn, and while the plurality of net constituent yarns are crossed, between the plurality of strands at the intersection position. It is a method of manufacturing a net material for producing knotless by inserting the other wire, and the plurality of mesh material constituent yarns are first and second netted fabric constituent yarns which are under-twisted covered yarns. The net made without knots is an upper twist, and a / b (a is the number of twists of the upper twist net, b is the first and second twists of the lower twist measured after the net knitted net. The number of twists of the net constituent yarns) is in the range of 0.56 to 0.63, and the net is manufactured .
The core yarn of the first netted fabric constituent yarn is a super fiber, and the core yarn of the second netted fabric constituent yarn is a super fiber.

また、請求項２記載の網地は、複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交差位置において複数の素線の間に他方の素線を挿通させて無結節を構成する網地であって、前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸であり、無結節で製造された前記網地は、上撚りであり、ａ／ｂ（ａは上撚り網地の撚数、ｂは網地編網後、測定した下撚りの前記第１、第２の網地構成糸の撚数）が０．５６～０．６３であり、前記第１の網地構成糸の芯糸は、スーパー繊維であり、前記第２の網地構成糸の芯糸は、スーパー繊維である。 Further, in the mesh according to claim 2 , a plurality of strands are twisted to form a mesh constituent yarn, and the other among the plurality of strands at the intersection position while intersecting the plurality of mesh constituent yarns. It is a net material that constitutes no knot by inserting a wire, and the plurality of net material constituent yarns are first and second mesh material constituent yarns that are covered yarns of lower twist, and are manufactured without knots. The netted yarn is an upper twist, and a / b (a is the number of twists of the upper twist net, b is the first and second yarns of the lower twist measured after the net is knitted. The number of twists) is 0.56 to 0.63, the core yarn of the first mesh fabric constituent yarn is a super fiber, and the core yarn of the second mesh fabric constituent yarn is a super fiber. There is .

請求項１記載の網地の製造方法によれば、ａ／ｂ（ａは上撚り網地の撚数、ｂは編地編網後測定した下撚り第１、第２の網地構成糸の撚数）が０．５６～０．６３であるため、無結節網地の強度利用率を向上させることができる。 According to the method for manufacturing a net according to claim 1 , a / b (a is the number of twists of the upper twisted net, b is the lower twisted first and second net constituent yarns measured after the knitted knitted net. Since the number of twists) is 0.56 to 0.63, the strength utilization rate of the knotless net can be improved.

請求項２記載の網地によれば、ａ／ｂ（ａは上撚り網地の撚数、ｂは編地編網後測定した下撚り第１、第２の網地構成糸の撚数）が０．５６～０．６３であるため、無結節網地の強度利用率を向上させることができる。
According to the net according to claim 2 , a / b (a is the number of twists of the upper twisted net, b is the number of twists of the first and second lower twisted yarns measured after the knitted fabric and knitted net). ) Is 0.56 to 0.63, so that the strength utilization rate of the knotless net can be improved.

図１は、本発明の一実施例の無結節を製造する網地の無結節前の構成図である。FIG. 1 is a configuration diagram before nodule of a net material for producing a nodule of an embodiment of the present invention. 図２は、網地構成糸を構成する第１、第２の網地構成糸の概略的図である。FIG. 2 is a schematic view of the first and second net constituent yarns constituting the net constituent yarn. 図３は、上撚り網地の撚数ａ、網地編網後、測定した下撚りの第１、第２の網地構成糸の撚数ｂ、網地の強度利用率を示す表である。FIG. 3 is a table showing the number of twists a of the upper twisted net, the number of twists b of the first and second constituent yarns of the lower twist measured after the knitted net, and the strength utilization rate of the net. .. 図４は、図３をグラフ化したもので、横軸に上撚り網の撚数ａを第１、第２の網地構成糸の撚り数ｂで割った係数ａ／ｂ、縦軸に利用率を示している。FIG. 4 is a graph of FIG. 3, in which the horizontal axis is the coefficient a / b obtained by dividing the number of twists a of the upper twisted net by the number of twists b of the first and second net constituent yarns, and the vertical axis is used. Shows the rate.

本発明の一実施例の網地及び網地の製造方法を説明する。
ダイニーマ（超高分子量ポリエチレン）や、ケブラー（ポリアラミド）、ベクトラン（ポリアリレート）などの高強度スーパー繊維を使用した無結節網地はその強度利用率が非常に低く、３０％～４０％程度となっている。本件発明者は、鋭意研究した結果、無結節網地の強度利用率が上撚り網地１０の撚数ａ、編地編網後測定した下撚り第１、第２の網地構成糸１、２の撚数ｂに起因することを見出した。 A net and a method for manufacturing the net according to an embodiment of the present invention will be described.
Knotless netting using high-strength super fibers such as Dyneema (ultra-high molecular weight polyethylene), Kevlar (polyaramid), and Vectran (polyarylate) has a very low strength utilization rate of about 30% to 40%. ing. As a result of diligent research, the inventor of the present invention has determined that the strength utilization rate of the knotless net is the number of twists a of the upper twisted net 10 and the lower twisted first and second net constituent yarns 1 and 2 measured after the knitted knitted net. It was found that it was caused by the twist number b of 2.

即ち、複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交差位置において複数の素線の間に他方の素線を挿通させて無結節を製造する網地の製造方法であって、前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸１、２であり、無結節で製造された網地１０は、上撚りである。
ａ／ｂ（ａは上撚り網地１０の撚数、ｂは網地編網後、測定した下撚りの第１、第２の網地構成糸１、２の撚数）を算出して、第１、第２の網地構成糸１、２の撚数と網地１０の撚数を決定して網地１０を製造するものである。
その結果、ａ／ｂ（ａは上撚り網地の撚数、ｂは編地編網後測定した下撚り第１、第２の網地構成糸１、２の撚数）を算出して、第１、第２の網地構成糸１、２の撚数ｂと網地の撚数ａを決定して網地１０を製造するため、無結節網地の強度利用率を向上させた網地１０を製造することができる。 That is, a plurality of strands are twisted to form a net constituent yarn, and while the plurality of strands are crossed, the other strand is inserted between the plurality of strands at the crossing position to form no knot. In the method for manufacturing a net to be manufactured, the plurality of net constituent yarns are the first and second net constituent yarns 1 and 2 which are bottom-twisted covered yarns, and the net is manufactured without knots. The ground 10 is a top twist.
A / b (a is the number of twists of the upper twisted net 10 and b is the number of twists of the first and second lower twist yarns 1 and 2 measured after the knitted net) is calculated. The net 10 is manufactured by determining the number of twists of the first and second net constituent yarns 1 and 2 and the number of twists of the net 10.
As a result, a / b (a is the number of twists of the upper twisted net, b is the number of twists of the first and second lower twisted yarns 1 and 2 measured after the knitted fabric and knitted net) is calculated. In order to manufacture the net 10 by determining the twist number b of the first and second net constituent yarns 1 and 2 and the twist a of the net, the net has improved the strength utilization rate of the knotless net. 10 can be manufactured.

更に、詳述すれば、カバードヤーンは芯糸に、鞘糸を巻き付けた糸である。カバードヤーンは、例えば、特開2019-99990に開示された１５ｃＮ／ｄｔｅｘ以上の強度を有する繊維からなる芯糸と、熱可塑性繊維または天然繊維からなり、前記芯糸を被覆するように撚り上げた鞘糸からなる撚糸である。 Further, in detail, the covered yarn is a yarn in which a sheath yarn is wound around a core yarn. The covered yarn is made of, for example, a core yarn made of fibers having a strength of 15 cN / dtex or more disclosed in JP-A-2019-99990, and a thermoplastic fiber or a natural fiber, and is twisted so as to cover the core yarn. It is a twisted yarn made of sheath yarn.

上記網地の製造方法は、無結節網機（例えば、東洋工業株式会社製のＲ０１２５Ｓ）に下撚りのカバードヤーンである第１の網地構成糸１と下撚りのカバードヤーンである第２の網地構成糸２を供給して、複数の網地構成糸を交差させつつ該交差位置において複数の素線の間に他方の素線を挿通させて無結節の網地１０を製造することができる。なお、Ｓ撚りを上撚りとすれば、Ｚ撚りは下撚りとなる。 The method for manufacturing the above-mentioned net material is to use a knotless net machine (for example, R0125S manufactured by Toyo Kogyo Co., Ltd.) with a first net material constituent yarn 1 which is a bottom-twisted covered yarn and a second one which is a bottom-twisted covered yarn. It is possible to supply the net constituent yarn 2 and insert the other strand between the plurality of strands at the crossing position while crossing the plurality of mesh constituent yarns to manufacture the knotless net. can. If the S twist is the upper twist, the Z twist is the lower twist.

上記した網地の製造方法（又は、網地１０）によれば、図３に示すように、網地１０の撚数ａを第１、第２の網地構成糸１、２の撚り数ｂで割った係数ａ／ｂが０．５６～０．６３の範囲で網地１０を製造すれば、無結節網地の強度利用率が従来の４０％を超えた４５％以上の値を得ることができた。
カバードヤーン１、２の撚り数ｂは、網地編網後、検撚機等で測定した撚数であり、
カバードヤーン１、２製作時の撚数ではない。これは、無結節の網地１０を編網する際は管巻きされた素線が解かれる際に解除撚りが発生し、カバードヤーン製作時の撚りに編網時に追撚されるためである。 According to the above-mentioned net manufacturing method (or net 10), as shown in FIG. 3, the twist number a of the net 10 is the twist number b of the first and second net constituent yarns 1 and 2. If the net 10 is manufactured in the range of the coefficient a / b divided by, 0.56 to 0.63, the strength utilization rate of the knotless net can be 45% or more, which exceeds the conventional 40%. Was done.
The twist number b of the covered yarns 1 and 2 is the number of twists measured by a twisting machine or the like after the net knitting net.
It is not the number of twists at the time of making covered yarns 1 and 2. This is because when the knotless net 10 is knitted, untwisting occurs when the wire wound around the tube is unwound, and the twisting at the time of producing the covered yarn is additionally twisted at the time of knitting.

なお、芯糸はスーパー繊維を用いた。スーパー繊維は、強度：１８ｃＮ／decitex以上、弾性率：３８０ｃＮ／decitex以上の高強度かつ高弾性繊維糸であるのが好ましい。具体的には、アラミド（パラ系、メタ系を含む）繊維、ポリアリレート繊維、ポリ（ｐ－フェニレンベンゾビスオキザール）（ＰＢＯ）繊維、ポリ（ｐ－フェニレンベンゾビスチアゾール）（ＰＢＺＴ）繊維、ポリエチレン繊維、ポリエーテルエーテルケトン繊維及びポリビニルアルコール繊維から選ばれる少なくとも一つの繊維糸であるのが好ましい。これらの繊維は混合して使用することもできる。経糸と緯糸は同一であっても良いし、異なっていても良い。この中でも耐熱性の高いアラミド繊維（例えば、東レ・デュポン社製商品名“ケブラー”、テイジントワロン（登録商標）社製商品名“トワロン（登録商標）”、帝人社製商品名“テクノーラ”）、ポリアリレート繊維（例えば、クラレ社製商品名“ベクトラン”）、ポリ（ｐ－フェニレンベンゾビスオキザール）（ＰＢＯ）繊維（例えば、東洋紡社製商品名“ザイロン”）が好ましい。 The core yarn used was super fiber. The super fiber is preferably a high-strength and high-elasticity fiber yarn having a strength of 18 cN / decitex or more and an elastic modulus of 380 cN / dedecitex or more. Specifically, aramid (including para-based and meta-based) fibers, polyallylate fibers, poly (p-phenylene benzobisoxal) (PBO) fibers, poly (p-phenylene benzobisthiazole) (PBZT) fibers, It is preferably at least one fiber yarn selected from polyethylene fiber, polyether ether ketone fiber and polyvinyl alcohol fiber. These fibers can also be mixed and used. The warp and weft may be the same or different. Among them, aramid fiber with high heat resistance (for example, Toray Dupont's product name "Kevlar", Teijin Zylon (registered trademark) product name "Twaron (registered trademark)", Teijin's product name "Technora"), Polyarylate fibers (eg, trade name "Vectran" manufactured by Kuraray) and poly (p-phenylene benzobis oxizar) (PBO) fibers (eg, trade name "Zylon" manufactured by Toyo Spinning Co., Ltd.) are preferable.

また、鞘糸は、機能性繊維、原着糸、難燃糸、再生繊維、融着糸、特開2019-99990に開示された以外の別種のスーパー繊維等でも良い。 Further, the sheath yarn may be a functional fiber, a raw yarn, a flame-retardant yarn, a regenerated fiber, a fused yarn, a super fiber of another kind other than those disclosed in JP-A-2019-99990, and the like.

また、強度利用率＝（実際の強さ÷理論強さ）×１００
理論強さ（Ｎ）＝（素材Ａの強度×繊度+素材Ｂの強度×繊度）÷１００（ｃＮ→Ｎ）

網地１０を構成するすべての繊維の強度：素材Ａの強度：５ｃＮ／ｄｔｅｘ
：素材Ｂの強度：１０ｃＮ／ｄｔｅｘ

網地１０でのそれぞれの使用繊度：素材Ａの繊度：４０００ｄｔｅｘ
：素材Ｂの繊度：５０００ｄｔｅｘ

例えば、実際の強さが３００Ｎとすると、理論強さ（Ｎ）＝（５ｃＮ／ｄｔｅｘ×４０００ｄｔｅｘ+１０ｃＮ／ｄｔｅｘ×５０００ｄｔｅｘ）÷１００＝７００Ｎ

強度利用率は（３００Ｎ÷７００Ｎ）×１００＝４２．９％ となる。 In addition, strength utilization rate = (actual strength ÷ theoretical strength) x 100
Theoretical strength (N) = (strength of material A x fineness + strength of material B x fineness) ÷ 100 (cN → N)

Strength of all fibers constituting the mesh 10: Strength of material A: 5cN / dtex
: Strength of material B: 10cN / dtex

Fineness of each used in net 10: Fineness of material A: 4000dtex
: Fineness of material B: 5000dtex

For example, assuming that the actual strength is 300N, the theoretical strength (N) = (5cN / dtex × 4000dtex + 10cN / dtex × 5000dtex) ÷ 100 = 700N.

The strength utilization rate is (300N ÷ 700N) × 100 = 42.9%.

１ 第１の網地構成糸
２ 第２の網地構成糸
１０ 網地
ａ 網地の撚数
ｂ 網地編網後、測定した下撚りの第１、第２の網地構成糸の撚数 1 1st net material constituent yarn 2 2nd net material constituent yarn 10 Net material a Number of twists of the net material b After the net material knitting net, the number of twists of the first and second net material constituent yarns of the lower twist measured

Claims (2)

複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交
差位置において複数の素線の間に他方の素線を挿通させて無結節を製造する網地の製造方
法であって、
前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸で
あり、
無結節で製造された前記網地は、上撚りであり、
ａ／ｂ（ａは上撚り網地の撚数、ｂは網地編網後、測定した下撚りの前記第１、第２
の網地構成糸の撚数）が０．５６～０．６３の範囲で網地を製造するものであり、
前記第１の網地構成糸の芯糸は、スーパー繊維であり、
前記第２の網地構成糸の芯糸は、スーパー繊維である
ことを特徴とする網地の製造方法。 A plurality of strands are twisted to form a net constituent yarn, and while the plurality of strands are crossed, the other strand is inserted between the plurality of strands at the crossing position to manufacture a knotless. It ’s a method of manufacturing nets.
The plurality of net material constituent yarns are the first and second net material constituent yarns which are the covered yarns of the lower twist.
The net material manufactured without knots is top-twisted and is twisted.
a / b (a is the number of twists of the upper twisted net, b is the first and second twists of the lower twist measured after the knitted net.
The number of twists of the net constituent yarns) is in the range of 0.56 to 0.63, and the net is manufactured .
The core yarn of the first net constituent yarn is a super fiber, and is
The core yarn of the second net constituent yarn is a super fiber.
A method of manufacturing a net, which is characterized by this. 複数の素線が撚られて網地構成糸が形成され、複数の網地構成糸を交差させつつ該交
差位置において複数の素線の間に他方の素線を挿通させて無結節を構成する網地であって
、
前記複数の網地構成糸は、下撚りのカバードヤーンである第１、第２の網地構成糸で
あり、
無結節で製造された前記網地は、上撚りであり、
ａ／ｂ（ａは上撚り網地の撚数、ｂは網地編網後、測定した下撚りの前記第１、第２
の網地構成糸の撚数）が０．５６～０．６３であり、
前記第１の網地構成糸の芯糸は、スーパー繊維であり、
前記第２の網地構成糸の芯糸は、スーパー繊維である
ことを特徴とする網地。 A plurality of strands are twisted to form a net constituent yarn, and while the plurality of strands are crossed, the other strand is inserted between the plurality of strands at the crossing position to form a nodule-free. It ’s a net,
The plurality of net material constituent yarns are the first and second net material constituent yarns which are the covered yarns of the lower twist.
The net material manufactured without knots is top-twisted and is twisted.
a / b (a is the number of twists of the upper twisted net, b is the first and second twists of the lower twist measured after the knitted net.
The number of twists of the net constituent yarns) is 0.56 to 0.63 .
The core yarn of the first net constituent yarn is a super fiber, and is
The core yarn of the second net constituent yarn is a super fiber.
A net that is characterized by that.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209059A (en) * 1984-03-30 1985-10-21 泰東製綱株式会社 Lower twisting controller of knotless net
JPS626949A (en) * 1985-06-28 1987-01-13 泰東製綱株式会社 High specific gravity knotless net
JPS63175126A (en) * 1986-12-29 1988-07-19 Chuo Zoki Kk First twisting of knotless net and equipment therefor
JP2007284047A (en) * 2006-03-22 2007-11-01 Toyobo Co Ltd Tire chain formed from knitted good
JP2018150667A (en) * 2017-03-10 2018-09-27 東レ株式会社 Core-sheath composite thermally fusible yarn and manufacturing method thereof
JP2020193406A (en) * 2019-05-28 2020-12-03 西日本ニチモウ株式会社 Method of manufacturing synthetic fiber net and synthetic fiber net

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209059A (en) * 1984-03-30 1985-10-21 泰東製綱株式会社 Lower twisting controller of knotless net
JPS626949A (en) * 1985-06-28 1987-01-13 泰東製綱株式会社 High specific gravity knotless net
JPS63175126A (en) * 1986-12-29 1988-07-19 Chuo Zoki Kk First twisting of knotless net and equipment therefor
JP2007284047A (en) * 2006-03-22 2007-11-01 Toyobo Co Ltd Tire chain formed from knitted good
JP2018150667A (en) * 2017-03-10 2018-09-27 東レ株式会社 Core-sheath composite thermally fusible yarn and manufacturing method thereof
JP2020193406A (en) * 2019-05-28 2020-12-03 西日本ニチモウ株式会社 Method of manufacturing synthetic fiber net and synthetic fiber net

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