JP6465480B2 - Spun yarn, fiber structures and protective materials - Google Patents
Spun yarn, fiber structures and protective materials Download PDFInfo
- Publication number
- JP6465480B2 JP6465480B2 JP2015006678A JP2015006678A JP6465480B2 JP 6465480 B2 JP6465480 B2 JP 6465480B2 JP 2015006678 A JP2015006678 A JP 2015006678A JP 2015006678 A JP2015006678 A JP 2015006678A JP 6465480 B2 JP6465480 B2 JP 6465480B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- spun yarn
- twist
- gloves
- fiber
- 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.)
- Active
Links
- 239000000835 fiber Substances 0.000 title claims description 73
- 230000001681 protective effect Effects 0.000 title claims description 29
- 239000000463 material Substances 0.000 title claims description 22
- 239000004744 fabric Substances 0.000 claims description 29
- 238000005520 cutting process Methods 0.000 claims description 28
- 229920006231 aramid fiber Polymers 0.000 claims description 13
- 238000010998 test method Methods 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 description 21
- 239000004760 aramid Substances 0.000 description 20
- 229920000742 Cotton Polymers 0.000 description 19
- 208000035824 paresthesia Diseases 0.000 description 15
- 238000009940 knitting Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 241001589086 Bellapiscis medius Species 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 230000035807 sensation Effects 0.000 description 7
- 229920000271 Kevlar® Polymers 0.000 description 6
- 239000004761 kevlar Substances 0.000 description 6
- 238000007378 ring spinning Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- -1 polyparaphenylene terephthalamide Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920001494 Technora Polymers 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004950 technora Substances 0.000 description 1
- MHSKRLJMQQNJNC-UHFFFAOYSA-N terephthalamide Chemical compound NC(=O)C1=CC=C(C(N)=O)C=C1 MHSKRLJMQQNJNC-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Gloves (AREA)
- Knitting Of Fabric (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
Description
本発明は、太繊度のアラミド繊維からなる耐切創性の優れた紡績糸ならびにそれを用いた織編物等の繊維構造物、防護材に関する。 The present invention relates to a spun yarn made of aramid fiber having a high fineness and excellent cut resistance, a fiber structure such as a woven or knitted fabric using the spun yarn, and a protective material.
アラミド繊維を使用した手袋、腕カバー、前掛けなどの防護材は、当該繊維が刃物で切断されにくいので、木綿などを使用した従来の手袋、腕カバー、前掛け等の防護材に比べて耐切創性が画期的に高い。そのため、例えば自動車産業や、洗濯機、冷蔵庫などの家電製品産業において、バリの出た板金加工品を扱う作業、割れ易いガラス製品を扱うガラス産業、または金属片やガラス片が混入している可能性のある一般塵芥を扱うゴミ収集作業等の切創事故を起こし易い作業において、作業者の手や体を保護するために広く使用されてきた。しかしながら、当該作業者等からは、より一層切創力がある安全な手袋や腕カバー、前掛け等の防護材が強く要望されている。また、防護手袋を着用する場合は、一般的に該手袋を１枚装着して作業する場合が多いが、作業の内容によって、更に切創力が必要となり、かつ汚れ等による手袋の交換が必要なことから、軍手タイプの手袋の上に同タイプの手袋や革製の縫製手袋やゴム製手袋などを重ね履きすることも多く、より一層軽量かつ重ね履きの際の装着性の良いものであることが望まれている。 Protective materials such as gloves, arm covers, and aprons using aramid fibers are more resistant to cuts than conventional protective materials such as gloves, arm covers, and aprons using cotton etc. Is epoch-making. Therefore, for example, in the automobile industry, home appliances industry such as washing machines, refrigerators, etc., work that handles sheet metal processed products with burr, glass industry that handles fragile glass products, or metal pieces or glass pieces may be mixed It has been widely used to protect workers' hands and bodies in work that is prone to cut accidents, such as garbage collection work that handles common general dust. However, there is a strong demand from such workers for protective materials such as safe gloves, arm covers, and aprons with even more cutting power. Also, when wearing protective gloves, in general, one glove is often worn, but depending on the content of the work, more cutting force is required and the gloves need to be replaced due to dirt, etc. For this reason, the same type of gloves, leather sewing gloves, rubber gloves, etc. are often worn on top of work gloves, making it even lighter and easier to wear. It is hoped that.
しかし、一般に、アラミド繊維などの高強度繊維は、耐切創性に優れている一方で剛性が高いためにごわごわ感があり、切創性と装着性は相互に取り合いの関係にある。 However, in general, high-strength fibers such as aramid fibers are excellent in cut resistance, but are stiff because of their high rigidity, and the cutability and the wearability are in mutual relations.
また、作業用手袋や作業衣などにおいては、着用者に作業の妨げとなる疲労感や不快感を与えることは好ましくなく、止むを得ない場合でもこれらは許される最小程度でなければならない。耐切創性が優れていても、手袋や腕カバー、前掛けなどの防護材では、硬い繊維端の刺激はちくちく感のような不快感を着用者に与えるので、ちくちく感が少なく、耐切創性、装着性に優れる防護材を工業的に生産することは極めて重要なことである。 In addition, in work gloves and work clothes, it is not preferable to give the wearer a feeling of fatigue or discomfort that hinders work, and even if this is unavoidable, these must be at a minimum allowable level. Even with excellent cut resistance, protective materials such as gloves, arm covers, and aprons give the wearer a discomfort such as a tingling sensation on the hard fiber end, so there is little tingling sensation, cutting resistance, It is extremely important to industrially produce protective materials with excellent wearability.
アラミド繊維は一般に、単糸繊度が太くなるにつれ、切断されにくくなることは特許文献１および特許文献２にも記載しているように明らかであり、手袋や腕カバー、前掛けなどの防護材の耐切創性の向上には、単糸繊度を大きくすることが原理的に有効である。従って、太繊度のアラミド繊維を使用すれば耐切創性に優れた手袋等をつくることはできるが、短繊維の曲げ硬さは繊維径の増大とともに飛躍的に高くなるので、単純に従来の製造方法を適用しただけでは、ちくちく感の多い手袋や織編物しかつくることができない。 As described in Patent Document 1 and Patent Document 2, it is clear that aramid fibers generally become difficult to cut as the single yarn fineness increases, and the cut resistance of protective materials such as gloves, arm covers, and aprons is clear. Increasing the single yarn fineness is effective in principle for improving creativity. Therefore, if aramid fibers with a high fineness are used, it is possible to make gloves with excellent cut resistance. However, the bending hardness of short fibers increases dramatically as the fiber diameter increases. Only by applying the method, it is not possible to knitted gloves and knitted fabrics with a lot of tingling.
また、手袋の着用者の不快感という点において、手袋の編地の斜行度合いが小さいことも重要である。一般的に軍手タイプの手袋を構成する糸は、紡績糸やカバーリング糸などの撚り糸が多く使用され、これらの糸は撚り戻りなどのトルクが存在する。この撚りトルクが影響して、手袋を装着している最中や、使用した手袋を再利用するために汚れを落とす洗浄・洗濯を施した後に、編地が斜行し手袋全体が捩れた状態となり、指先による作業がし難いなどの不快感が生じる傾向にある。このためには使用前の手袋の編地の斜行を小さくすることが極めて重要なことである。 It is also important that the degree of skew of the glove knitted fabric is small in terms of discomfort for the wearer of the glove. In general, yarns constituting work gloves are often twisted yarns such as spun yarns and covering yarns, and these yarns have torque such as twisting back. This twisting torque affects the knitted fabric as it is skewed and the entire glove is twisted while wearing gloves or after washing and washing to remove dirt to reuse the used gloves. Therefore, there is a tendency that uncomfortable feeling such as difficulty in work with the fingertips occurs. For this purpose, it is extremely important to reduce the skew of the knitted fabric of the glove before use.
特許文献３には、耐切創性の高い防護用品を得るために、繊維構造物の厚みを４．５ｍｍ以上にすることが提案されているが、これでは装着性の良い手袋になり得ない。また、特許文献４には、繊維構造物の厚みを５．０ｍｍ以上にし、繊維と金属間の摩擦を低下させるためシリコーン化合物で処理することが提案されているが、手袋にしたときの装着性が劣る。さらに、特許文献５には、アラミド繊維と高収縮ポリエステル繊維を混綿し、アラミド繊維を外層部に配することで、耐切創性紡績糸が得られることが提案されている。しかしながら、それを丸編みした編物の目付が６４９ｇ／ｍ２と高いため、これでは軽量防護材とはなり得ない。 In Patent Document 3, it is proposed that the thickness of the fiber structure is 4.5 mm or more in order to obtain a protective article having high cut resistance, but this cannot be a glove with good wearability. Further, Patent Document 4 proposes that the thickness of the fiber structure is 5.0 mm or more and that it is treated with a silicone compound to reduce the friction between the fiber and the metal. Is inferior. Furthermore, Patent Document 5 proposes that a cut-resistant spun yarn can be obtained by blending aramid fibers and high-shrinkage polyester fibers and arranging the aramid fibers in the outer layer portion. However, since the basis weight of the knitted fabric obtained by circular knitting is as high as 649 g / m 2 , it cannot be a lightweight protective material.
したがって、耐切創性、軽量性、装着性、作業性を兼ね備えた繊維構造物、防護材の提供を可能にする紡績糸は、現状得られていない。 Accordingly, a spun yarn that can provide a fiber structure and a protective material having cut resistance, light weight, wearability, and workability has not been obtained.
本発明は、かかる従来技術の背景に鑑み、耐切創性の優れた紡績糸、ならびに、該紡績糸からなる耐切創性、軽量性、装着性、作業性に優れた、繊維構造物、防護材を提供せんとするものである。 In view of the background of the prior art, the present invention provides a spun yarn excellent in cut resistance, and a fiber structure and a protective material excellent in cut resistance, light weight, wearability and workability made of the spun yarn. Is intended to provide.
本発明は、かかる課題を解決するために、次の手段を採用するものである。すなわち、本発明は、以下の通りである。 The present invention employs the following means in order to solve such problems. That is, the present invention is as follows.
（１）アラミド繊維からなる紡績糸であって、短繊維の単糸繊度が３．０〜４．８ｄｔｅｘ、紡績糸の単糸撚係数（Ｋ）が３．０〜３．８、紡績糸の単糸撚数（Ｔ１）と双糸撚数（Ｔ２）の比率（Ｔ２／Ｔ１）が４８〜６３％であることを特徴とする耐切創性の優れた紡績糸。
（２）上記（１）に記載の紡績糸で構成したことを特徴とする耐切創性の優れた繊維構造物。
（３）繊維構造物が織編物である上記（２）に記載の耐切創性の優れた繊維構造物。
（４）上記（１）に記載の紡績糸または上記（２）もしくは（３）に記載の繊維構造物で構成したことを特徴とする耐切創性の優れた防護材。
（５）上記（１）に記載の紡績糸または上記（２）もしくは（３）に記載の繊維構造物で構成したことを特徴とする耐切創性の優れた防護手袋。
（６）手の平部の目付が２６０〜４５０ｇ／ｍ２で、ＪＩＳ Ｔ ８０５２に規定された試験方法に基づいて測定した切創力が８．５Ｎ以上である上記（５）に記載の耐切創性の優れた防護手袋。
(1) A spun yarn comprising an aramid fiber, wherein the single yarn fineness of the short fiber is 3.0 to 4.8 dtex, the single yarn twist coefficient (K) of the spun yarn is 3.0 to 3.8, A spun yarn excellent in cut resistance, wherein the ratio (T 2 / T 1 ) of the number of single yarn twists (T 1 ) to the number of twists of double yarns (T 2 ) is 48 to 63%.
(2) A fiber structure excellent in cut resistance, characterized by comprising the spun yarn according to (1) above.
(3) The fiber structure having excellent cut resistance according to (2), wherein the fiber structure is a woven or knitted fabric.
(4) A protective material with excellent cut resistance, characterized by comprising the spun yarn according to (1) above or the fiber structure according to (2) or (3) above.
(5) A protective glove having excellent cut resistance, characterized by comprising the spun yarn according to (1) or the fiber structure according to (2) or (3).
(6) The cut resistance according to (5) above, wherein the basis weight of the palm is 260 to 450 g / m 2 and the cutting force measured based on the test method specified in JIS T 8052 is 8.5 N or more. Excellent protective gloves.
本発明によれば、単繊維繊度が３．０〜４．８ｄｔｅｘと繊度の太いアラミド短繊維を用い、紡績糸にする際の単糸撚係数および紡績糸の単糸撚数と双糸撚数の比率を調整することにより、高強力の耐切創性紡績糸を得ることができる。また、それを用いて繊維構造物を構成することで、従来にない高い切創力を有する防護材が得られる。特に、作業者用手袋として好適であり、当該手袋はちくちく感がなく、軽量性、重ね履き性、作業性に優れている。 According to the present invention, a single yarn fineness is 3.0 to 4.8 dtex and a thick aramid short fiber is used, and the single yarn twist coefficient and the single yarn twist number and the double yarn twist number of the spun yarn when the spun yarn is used. By adjusting the ratio, a high strength cut resistant spun yarn can be obtained. Moreover, the protective material which has an unprecedented high cutting force is obtained by comprising a fiber structure using it. Particularly, it is suitable as a glove for an operator, and the glove does not have a tingling sensation, and is excellent in lightness, layered wearability, and workability.
以下、本発明の紡績糸について詳細を説明する。 Hereinafter, the details of the spun yarn of the present invention will be described.
本発明の紡績糸において用いられるアラミド繊維としては、メタ系アラミド繊維、パラ系アラミド繊維が挙げられ、両繊維を任意の混紡率で混紡した混紡品、あるいは各１００％品で用いたものでもよく、要求される防護材の特性により選定することができる。中でも、耐切創性および耐熱性に優れる点より、パラ系アラミド繊維が好適である。かかるパラ系アラミド繊維としては、ポリパラフェニレンテレフタルアミド繊維（東レ・デュポン（株）製、商品名「ケブラー」（登録商標））、コポリパラフェニレン−３，４’−ジフェニルエーテルテレフタルアミド繊維（帝人テクノプロダクツ（株）製、商品名「テクノーラ」）等がある。これらの繊維の中でも、特に耐切創性に優れているポリパラフェニレンテレフタルアミド繊維が好ましい。 Examples of the aramid fibers used in the spun yarn of the present invention include meta-aramid fibers and para-aramid fibers, which may be blended products in which both fibers are blended at an arbitrary blending rate, or those used in 100% products. Can be selected according to the characteristics of the required protective material. Of these, para-aramid fibers are preferred because they are excellent in cut resistance and heat resistance. Examples of such para-aramid fibers include polyparaphenylene terephthalamide fiber (trade name “Kevlar” (registered trademark) manufactured by Toray DuPont Co., Ltd.), copolyparaphenylene-3,4′-diphenyl ether terephthalamide fiber (Teijin Techno) There is a product name “Technora” manufactured by Products Co., Ltd.). Among these fibers, polyparaphenylene terephthalamide fibers that are particularly excellent in cut resistance are preferable.
アラミド繊維は一般に、単糸繊度が太くなるにつれ、切断されにくくなるため、以前から防護材の耐切創性を向上させるためには、単糸繊度を大きくすることが有効と考えられてきた。特開平９−１５７９８１号公報には、単糸繊度３．９〜４．４ｄｔｅｘのアラミド短繊維に撚係数１．５〜３．０の甘撚りを加えて得た紡績糸を２本引揃え、逆撚りを加えてトルクをなくし双糸に加工することで、単糸繊度１．７ｄｔｅｘの従来品よりも耐切創性が改善されること、それよりも単糸繊度が小さいと耐切創性の改善効果が少ないことが示されている。 In general, aramid fibers are less likely to be cut as the single yarn fineness increases, and it has long been considered effective to increase the single yarn fineness in order to improve the cut resistance of the protective material. In JP-A-9-157981, two spun yarns obtained by adding a sweet twist of a twist coefficient of 1.5 to 3.0 to an aramid short fiber having a single yarn fineness of 3.9 to 4.4 dtex are aligned, By applying reverse twist to eliminate torque and processing into double yarn, the cut resistance is improved compared to the conventional product with a single yarn fineness of 1.7 dtex, and when the single yarn fineness is smaller than that, the cut resistance is improved. It has been shown to be less effective.
本発明の紡績糸では、単糸繊度が３．０〜４．８ｄｔｅｘの範囲、より好ましくは３．０〜３．８ｄｔｅｘ、特に好ましくは３．０〜３．６ｄｔｅｘの範囲にある短繊維を用いる。このような単糸繊度としたのは、単糸繊度が３．０ｄｔｅｘ未満では、ＪＩＳ Ｔ ８０５２：２００５「防護服−機械的特性−鋭利物に対する切創抵抗性試験方法」に規定された試験方法に基づいて測定した切創力が８．５Ｎ以上を満たすことができなくなるからである。ここで、有機繊維のみを使用した軍手タイプの耐切創性手袋は、一般的に７ゲージや１０ゲージを代表とする手袋編み機で作製したものが多く、この中で高い特性を示す７ゲージの手袋の切創力は、凡そ８．５〜１１．５Ｎの範囲である。この切創力が８．５Ｎ以上であれば耐切創性が高いと言える。
反対に、単糸繊度が４．８ｄｔｅｘを超えてしまうと、手袋や織編物等の繊維構造物が硬くなるため、装着性（手袋の重ね履き性）や作業性が低下してしまい、またちくちく感を解消することが困難である。また、単糸繊度が大きくなると、加工性も劣ることから、適度な繊度の短繊維を用いて耐切創性に優れる繊維構造物が得られると、経済性の面でも有利である。
In the spun yarn of the present invention, short fibers having a single yarn fineness in the range of 3.0 to 4.8 dtex, more preferably in the range of 3.0 to 3.8 dtex, and particularly preferably in the range of 3.0 to 3.6 dtex are used. . The single yarn fineness is determined by the test method defined in JIS T 8052: 2005 “Protective clothing-mechanical properties-cutting resistance test method for sharp objects” when the single yarn fineness is less than 3.0 dtex. This is because the cutting force measured based on the above cannot satisfy 8.5N or more. Here, work gloves type cut-resistant gloves using only organic fibers are generally made with a glove knitting machine represented by 7 gauge or 10 gauge, and among them, 7 gauge gloves exhibiting high characteristics. The cutting force is in the range of about 8.5 to 11.5 N. If this cutting force is 8.5 N or more, it can be said that the cutting resistance is high.
On the other hand, if the single yarn fineness exceeds 4.8 dtex, the fiber structure such as gloves and woven or knitted fabric becomes hard, so the wearability (wearability of gloves) and workability are reduced. It is difficult to eliminate the feeling. In addition, when the single yarn fineness is increased, the workability is also inferior. Therefore, if a fiber structure excellent in cut resistance is obtained using short fibers having an appropriate fineness, it is advantageous in terms of economy.
短繊維の繊維長は特に限定しないが、紡績糸の撚り係数を適正化する際の加工性を容易にし、同時にちくちく感を解消し、作業性や装着性を高めることのできる、最適な繊維長を選択するのがよい。平均繊維長として、３５〜１６０ｍｍの範囲が好ましく、より好ましくは４５〜１３０ｍｍの範囲である。また、良好な紡績性を得るために、短繊維の捲縮数は、約３〜約１２山／インチが望ましい。 The fiber length of the short fiber is not particularly limited, but the optimum fiber length that facilitates workability when optimizing the twist coefficient of the spun yarn, eliminates the tingling feeling, and improves workability and wearability. It is good to choose. As an average fiber length, the range of 35-160 mm is preferable, More preferably, it is the range of 45-130 mm. Further, in order to obtain good spinnability, the number of crimps of the short fibers is preferably about 3 to about 12 threads / inch.
本発明の紡績糸の太さは、用途にもよるが、通常３０ｓ〜５ｓ番手の範囲で好ましく使われる。ここで、糸が細くなると番手数が大きくなる。５ｓ未満では紡績糸の加工性が劣り、３０ｓを超えると紡績糸の耐切創性が低下する傾向がある。織編物や手袋の編み立てに用いる紡績糸の形態は、紡績糸単糸を２本引きそろえて、紡績糸単糸と逆方向に撚糸した紡績糸双糸である。紡績糸双糸の番手は、３０／２ｓ〜５／２ｓが望ましく、前記範囲内であれば加工性が著しく損なわれることがない。 The thickness of the spun yarn of the present invention is preferably used in the range of usually 30 s to 5 s although it depends on the application. Here, as the yarn becomes thinner, the number of counts increases. If it is less than 5 s, the workability of the spun yarn is inferior, and if it exceeds 30 s, the cut resistance of the spun yarn tends to decrease. A spun yarn used for knitting a woven or knitted fabric or a glove is a spun yarn double yarn in which two spun yarns are aligned and twisted in the opposite direction to the spun yarn. The yarn count of the spun yarn is preferably 30/2 s to 5/2 s, and if it is within the above range, the workability is not significantly impaired.
本発明の紡績糸は、単糸撚係数（Ｋ）と、単糸およびそれを引き揃えた双糸の撚数（Ｔ１、Ｔ２）を適正化することが肝要である。第１に、紡績糸単糸を加撚する場合は、次式で求められる単糸撚係数（Ｋ）を、３．０〜３．８の範囲とする。単糸撚係数（Ｋ）が３．０より小さいと、短繊維同士の絡みが弱くなりすぎ、短繊維の端部が紡績糸からはみ出し、ちくちく感の多い手袋となるため、好ましくない。また、単糸撚係数（Ｋ）が３．８より大きいと、強撚になりすぎて二重撚の発生が強くなって加工性が悪化し、紡績糸の引張強度も低下し、また風合いの観点からも好ましくない。より好ましい単糸撚係数（Ｋ）は３．１〜３．６の範囲である。単糸撚数（Ｔ１）は６〜２１回／インチが好ましく、より好ましくは７〜１９回／インチである。紡績糸単糸の撚方向は、Ｓ、Ｚのいずれでもよい。 In the spun yarn of the present invention, it is important to optimize the single yarn twist coefficient (K) and the number of twists (T 1 , T 2 ) of the single yarn and the double yarn obtained by arranging the single yarn. 1stly, when twisting a spun yarn single yarn, the single yarn twist coefficient (K) calculated | required by following Formula shall be the range of 3.0-3.8. When the single yarn twist coefficient (K) is less than 3.0, the entanglement between the short fibers becomes too weak, and the ends of the short fibers protrude from the spun yarn, resulting in a glove with a lot of tingling sensation. On the other hand, if the single yarn twist coefficient (K) is larger than 3.8, the twist becomes too strong, the occurrence of double twist becomes strong, the workability deteriorates, the tensile strength of the spun yarn decreases, and the texture It is not preferable also from a viewpoint. A more preferable single yarn twist coefficient (K) is in the range of 3.1 to 3.6. The single yarn twist number (T 1 ) is preferably 6 to 21 times / inch, and more preferably 7 to 19 times / inch. Either S or Z may be sufficient as the twist direction of a single spun yarn.
撚係数 Ｋ＝Ｔ１／ｓ１／２
Ｔ１；撚数（回／インチ）
ｓ ；綿番手
Twist coefficient K = T 1 / s 1/2
T 1 : Number of twists (times / inch)
s; Cotton count
第２に、所定の撚り（撚数Ｔ１）を加えた紡績糸単糸を２本引き揃え、ダブルツイスターで所定の逆撚り（撚数Ｔ２）を加えて、紡績糸に加工する。このとき、紡績糸の単糸撚数（Ｔ１）に対する双糸撚数（Ｔ２）の比率（Ｔ２／Ｔ１ ）が４８〜６３％、より好ましくは５０〜６３％の範囲になるように加撚する必要がある。
本発明の紡績糸では、単糸撚数を通常より大きい値に設定することにより、紡績糸表面の毛羽や繊維端を抑えることで高剛性アラミド繊維によるちくちく感を減少させている。従って、前記比率（Ｔ２／Ｔ１）を４８％より小さくすることは、双糸の残留トルクによって編み立てした織編物や手袋によじれが生じ、編地が斜行することで、手袋の装着性や作業性が低下するので好ましくない。反対に、前記比率（Ｔ２／Ｔ１）を６３％より大きくすると、残留トルクをなくす工程で過度の加撚を強いられることで、均一な紡績糸が得られにくくなり、そのため、紡績糸を織編物や手袋等の繊維構造物にしたときに、切創力が局所的に低い部位が発生する恐れがあり、耐切創性向上という本来の目的が阻害されることになる。双糸撚数（Ｔ２）は３〜１３回／インチが好ましく、より好ましくは４〜１２回／インチである。
Secondly, two spun yarns having a predetermined twist (twist number T 1 ) are drawn together, a predetermined reverse twist (twist number T 2 ) is added with a double twister, and processed into a spun yarn. At this time, the ratio (T 2 / T 1 ) of the twin yarn twist number (T 2 ) to the single yarn twist number (T 1 ) of the spun yarn is 48 to 63%, more preferably 50 to 63%. Need to be twisted.
In the spun yarn of the present invention, by setting the number of single yarn twists to a larger value than usual, the fluff and fiber ends on the spun yarn surface are suppressed to reduce the tingling sensation caused by the highly rigid aramid fiber. Therefore, if the ratio (T 2 / T 1 ) is made smaller than 48%, the knitted fabric or the glove knitted by the residual torque of the twin yarn causes kinking, and the knitted fabric is skewed. This is not preferable because the workability and workability deteriorate. On the contrary, if the ratio (T 2 / T 1 ) is larger than 63%, it becomes difficult to obtain a uniform spun yarn because excessive twisting is forced in the process of eliminating the residual torque. When a fiber structure such as a woven or knitted fabric or a glove is used, there is a possibility that a part having a low cutting force may be locally generated, which hinders the original purpose of improving cut resistance. The number of twists of twin yarn (T 2 ) is preferably 3 to 13 times / inch, more preferably 4 to 12 times / inch.
本発明の紡績糸は、単糸繊度が３．０〜４．８ｄｔｅｘのアラミドを切断し、ステープル化したものを用いて、従来公知の紡績手段で製造することができる。ステープルをスライバーとし、それをリング撚糸機等にて所定の撚係数の撚りを加え、さらにダブルツイスター等にて、所定の撚数比率とする。こうして得られる、本発明の紡績糸の綿番手２０／２の双糸は、その引張強力が４０Ｎ以上であり、本発明の加撚条件を満たさない同じ綿番手のアラミド紡績糸よりも高い値を示す点で、特徴が有る。このことから、本発明の紡績糸は、引張強さの点でも優れているので、手袋をはじめ、各種の繊維構造物に適用できる。 The spun yarn of the present invention can be produced by a conventionally known spinning means using a material obtained by cutting and stapling an aramid having a single yarn fineness of 3.0 to 4.8 dtex. A staple is used as a sliver, and a twist of a predetermined twist coefficient is added using a ring twisting machine or the like, and a predetermined twist ratio is set using a double twister or the like. The thus obtained double yarn of the spun yarn 20/2 of the spun yarn of the present invention has a tensile strength of 40 N or more, which is higher than the aramid spun yarn of the same cotton count that does not satisfy the twisting condition of the present invention. There is a feature in the point to show. Therefore, the spun yarn of the present invention is excellent in terms of tensile strength, and can be applied to various fiber structures including gloves.
また、本発明の紡績糸を製造する場合、本発明の効果を妨げない範囲で、約３０重量％以下で他の短繊維を混用することができる。 When the spun yarn of the present invention is produced, other short fibers can be mixed at about 30% by weight or less as long as the effects of the present invention are not hindered.
また繊維構造物は、本発明の紡績糸１００％で構成することが、該紡績糸が有する耐切創性、高強力と言った優れた特性が如何なく発揮される点で好ましいが、交織交編のように他の繊維や糸との併用でもよい。好ましくは、紡績糸が織物や編物等製品全体の重量のうち、７０〜１００％の範囲とするのがよい。パイル織物のような立毛布帛とすることもできる。 The fiber structure is preferably composed of 100% of the spun yarn of the present invention, because the spun yarn has excellent cut resistance and high strength. It may be used in combination with other fibers and threads. Preferably, the spun yarn may be in the range of 70 to 100% of the total weight of the woven or knitted product. A raised fabric such as a pile fabric may be used.
さらに、本発明の防護材は、全てを、かかる紡績糸または繊維構造物で構成してもよく、またはそれらを部分的に使用することでもよい。例えば、作業用手袋では、作業内容により指先部分や掌部分だけのように、特定の部分に本発明の紡績糸や織編物等を使うことができる。織編物や防護材には、必要に応じ、樹脂コーティングを施すこともできる。防護手袋を編成する場合は、その目付が２６０〜４５０ｇ／ｍ２の範囲になるように編みあげることが好ましく、目付２６０ｇ／ｍ２以上にすることで、耐切創性、作業性、装着性かつちくちく感が感じられない手袋を得ることができ、また目付４５０ｇ／ｍ２以下にすることで、軽量で重ね履き性がよい手袋となる。目付が４５０ｇ／ｍ２を超える手袋の場合は、手袋の厚みが大きいため重ね履きをした際に締付け感が増すことでちくちく感を感じやすく、また手袋が重くなる。更に好ましくは２６０〜４００ｇ／ｍ２の範囲にするのが良い。この場合の構成する紡績糸の本数は、紡績糸の太さ（番手）と繊維構造物および防護材の目付が関係するが、それぞれの範囲内であれば、１〜複数本で使用できる。 Furthermore, the protective material of the present invention may be composed entirely of such spun yarns or fiber structures, or they may be partially used. For example, in the working gloves, the spun yarn or the knitted fabric of the present invention can be used for a specific part such as a fingertip part or a palm part depending on work contents. Resin coating can be applied to the woven or knitted fabric or the protective material as necessary. When organizing protective gloves, it is preferable that the basis weight'll knitting to be in the range of 260~450g / m 2, by the basis weight 260 g / m 2 or more, cut resistant, workability, wearability and A glove that does not feel a tingling sensation can be obtained, and by making the basis weight 450 g / m 2 or less, the glove is lightweight and has good wearability. In the case of a glove having a basis weight exceeding 450 g / m 2 , the thickness of the glove is large, so that it is easy to feel a tingling sensation when it is worn repeatedly, and the glove becomes heavy. More preferably, it is good to set it as the range of 260-400 g / m < 2 >. In this case, the number of spun yarns is related to the thickness of the spun yarn (count) and the basis weight of the fiber structure and the protective material.
手袋の厚みは、重ね履き性などを考慮すると、ＪＩＳ Ｌ １０９６：２０１０ ８．４による厚み測定方法に基づいて測定した厚みが、１．８ｍｍ以下にするのが良い。
手袋の場合、作製に使用する編み機のゲージ数は、５．５〜１３ゲージがよく、好ましくは７〜１０ゲージ、更に好ましくは１０ゲージとするのが良い。この場合の編地の密度としては、６〜２５ウェール／インチの範囲であればよく、好ましくは８〜１８ウェール／インチの範囲にするのが良い。
The thickness of the glove is preferably 1.8 mm or less when the thickness measured based on the thickness measurement method according to JIS L 1096: 2010 8.4 is taken into consideration.
In the case of gloves, the gauge number of the knitting machine used for production is preferably 5.5 to 13 gauge, preferably 7 to 10 gauge, and more preferably 10 gauge. The density of the knitted fabric in this case may be in the range of 6 to 25 wal / inch, and preferably in the range of 8 to 18 wal / inch.
本発明の防護材は、厳しい使用環境条件が要求される用途に特に適している。これには、直接防護目的として使用されるものはもちろん、結果的に防護機能が果たされるものも含まれ、具体的には、作業用または工業用手袋、腕カバー、前掛け、足首カバーの他、作業靴、地下足袋、溶接用作業衣；スポーツ用として、スポーツ用上着、同ズボン、野球やサッカー用のソックス、フェンシングユニフォーム；溶接作業用カーテン、消防服、消防用ホース、等が挙げられるが、これらに限定されるものではない。特に、作業者用手袋として好適である。十分な切創力があるため手袋１枚を装着した場合や、手袋を重ね履きした場合でも、好適である。 The protective material of the present invention is particularly suitable for applications that require severe use environment conditions. This includes not only those that are used directly for protection purposes, but also those that result in a protective function, specifically working or industrial gloves, arm covers, aprons, ankle covers, Work shoes, basement socks, work clothes for welding; sports clothes include sports jackets, trousers, socks for baseball and soccer, fencing uniforms; welding work curtains, fire clothes, fire hoses, etc. However, it is not limited to these. In particular, it is suitable as a glove for workers. Since it has sufficient cutting force, it is suitable even when one glove is worn or when gloves are worn repeatedly.
以下、実施例および比較例を用いて本発明を更に具体的に説明するが、本発明は以下の実施例のみに限定されるものではない。なお、以下の実施例および比較例における各物性値の測定方法は次の通りである。 Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples, but the present invention is not limited to only the following Examples. In addition, the measuring method of each physical-property value in a following example and a comparative example is as follows.
［紡績糸の引張強力］
ＪＩＳ Ｌ １０９５：２０１０「一般紡績糸試験方法」９．５に準じて紡績糸の引張強さ（Ｎ）を測定した。
[Tensile strength of spun yarn]
The tensile strength (N) of the spun yarn was measured according to JIS L 1095: 2010 “General spun yarn test method” 9.5.
［切創力］
ＪＩＳ Ｔ ８０５２：２００５「防護服−機械的特性−鋭利物に対する切創抵抗性試験方法」に準拠し、手袋１枚における手の平部の切創力（Ｎ）を測定した。切創力（Ｎ）を織編物の目付で除して、耐切創性を求めた。切創力の値が大きいほど切れ難いと判定した。
[Cut power]
In accordance with JIS T 8052: 2005 “Protective clothing—mechanical properties—cutting resistance test method for sharp objects”, the cutting force (N) of the palm part of one glove was measured. Cut resistance (N) was divided by the basis weight of the woven or knitted fabric to determine cut resistance. The greater the value of the cutting force, the more difficult it was to cut.
［作業性（編地の斜行］
７ゲージタイプの手袋編み機（（株）島精機製作所）を使用し、編成後の手袋の編目の状態にて、ＪＩＳ Ｔ １０９６：２０１０「織物及び編物の生地試験方法」８．１２に準じて、編地のウェール方向の布目曲がり（斜行）を測定し、布目曲がり率を求めた。この布目曲がり率により判定、１０％未満のものを「○」、１０％以上のものを「×」と判定した。
[Workability (skew of knitted fabric)
In accordance with JIS T 1096: 2010 “Fabric and knitted fabric testing method” 8.12, using a 7 gauge type glove knitting machine (Shimane Seiki Seisakusho Co., Ltd.) The fabric bending (skew) in the wale direction of the knitted fabric was measured to determine the fabric bending rate. Judgment was made based on the fabric bending rate, and less than 10% was judged as “◯”, and 10% or more as “x”.
［ちくちく感（表面毛羽）］
編成後の手袋１枚を着用した１０人の感触により、また、編織物はその生地に対する１０人の感触により判定した。６０％以上がちくちく感が無いと判定したものをちくちく感なし「○」、それ以外をちくちく感あり「×」と判定した。
[A feeling of tingling (surface fluff)]
Judgment was made by the feeling of 10 people wearing one knitted glove, and the knitted fabric was judged by the feeling of 10 people with respect to the fabric. When it was determined that 60% or more did not have a tingling sensation, it was determined that there was no tingling sensation “◯”, and other cases were determined as tingling sensation “×”.
［装着性（重ね履きのし易さ）］
実施例および比較例で作成した手袋を、それぞれ同じ手袋を２枚重ねて装着した際の装着のし易さおよび装着時の手の締め付け感について判定し、良いものを「○」、悪いものを「×」と判定した。
[Mountability (easy to wear repeatedly)]
Gloves created in the examples and comparative examples were judged for ease of wearing when the same glove was put on top of each other and the feeling of hand tightening when wearing them. It was determined as “x”.
（実施例１）
アラミド短繊維糸条として、繊度３．３ｄｔｅｘのパラ系アラミド繊維（東レ・デュポン（株）製“Ｋｅｖｌａｒ（Ｒ）２９”、引張強度２０．３ｃＮ／ｄｔｅｘ）にステープル加工を施した、繊維長５１ｍｍ、捲縮数約８山／インチのパラ系アラミド短繊維１００％を用いた。
これを、開綿機、カード、練条の順で通しスライバーとした。次に、これをリング精紡機に仕掛け、撚数（Ｔ１）１４．１回／インチ、撚係数３．１、撚り方向がＺ撚りの撚りを加えて、糸番手２０（綿番手）、引張強力１７．６Ｎの紡績糸の単糸を得た。この紡績糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）８．４回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力４１．０Ｎの双糸を得た。Ｔ２／Ｔ１の比率は６０％である。
さらに、双糸を２本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．５ウェール／インチ、手の平部の目付が３２０ｇ／ｍ２の手袋を編みあげた。手袋の切創力、作業性、ちくちく感、装着性を表１にまとめた。
Example 1
Para-aramid fiber with a fineness of 3.3 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength: 20.3 cN / dtex) as aramid short fiber yarn, fiber length 51 mm 100% para-aramid short fibers having a crimp number of about 8 ridges / inch were used.
This was made into a sliver in the order of the cotton spreader, card, and strip. Next, this was applied to a ring spinning machine, and twist number (T 1 ) 14.1 times / inch, twist coefficient 3.1, twist direction Z twist was added, yarn count 20 (cotton count), tension A single yarn of spun yarn having a strength of 17.6 N was obtained. Two spun yarns are aligned, a reverse twist (T 2 ) of 8.4 turns / inch is added with a double twister, the yarn count is 20/2 (cotton count), and the tensile strength is 41.0 N I got a double thread. The ratio of T 2 / T 1 is 60%.
Furthermore, two twin yarns are aligned and supplied to a 10 gauge type glove knitting machine (Shimae Seisaku Seisakusho Co., Ltd.), and knitted gloves with 12.5 wal / inch and a hand weight of 320 g / m 2 are obtained. I gave it. Table 1 summarizes the cutting ability, workability, tactile sensation, and wearability of gloves.
（実施例２）
アラミド短繊維糸条として、繊度３．３ｄｔｅｘのパラ系アラミド繊維（東レ・デュポン（株）製“Ｋｅｖｌａｒ（Ｒ）２９”、引張強度２０．３ｃＮ／ｄｔｅｘ）にステープル加工を施した、繊維長５１ｍｍ、捲縮数約８山／インチのパラ系アラミド短繊維１００％を用いた。これを、開綿機、カード、練条の順で通しスライバーとした。次に、これをリング精紡機に仕掛け、撚数（Ｔ１）１５．７回／インチ、撚係数３．５、撚り方向がＺ撚りの撚りを加えて、糸番手２０（綿番手）、引張強力１６．２Ｎの紡績糸の単糸を得た。この紡績糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）７．８回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力４０．４Ｎの双糸を得た。Ｔ２／Ｔ１の比率は５０％である。
さらに、双糸を２本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．５ウェール／インチ、手の平部の目付が３２７ｇ／ｍ２の手袋を編みあげた。手袋の切創力、作業性、ちくちく感、装着性を表１にまとめた。
(Example 2)
Para-aramid fiber with a fineness of 3.3 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength: 20.3 cN / dtex) as aramid short fiber yarn, fiber length 51 mm 100% para-aramid short fibers having a crimp of about 8 ridges / inch were used. This was made into a sliver in the order of the cotton spreader, card, and strip. Next, this was put on a ring spinning machine, and twist number (T 1 ) 15.7 times / inch, twist coefficient 3.5, twist direction Z twist was added, yarn count 20 (cotton count), tension A single yarn of strong 16.2N spun yarn was obtained. Two spun yarns are aligned, and a twist (T 2 ) twist of 7.8 turns / inch is added with a double twister, the yarn count is 20/2 (cotton count), and the tensile strength is 40.4 N I got a double thread. The ratio of T 2 / T 1 is 50%.
Furthermore, two twin yarns are aligned and supplied to a 10 gauge type glove knitting machine (Shimane Seiki Seisakusho Co., Ltd.), and knitted gloves with 12.5 wal / inch and a hand weight of 327 g / m 2 are provided. I gave it. Table 1 summarizes the cutting ability, workability, tactile sensation, and wearability of gloves.
（比較例１）
実施例１で得た紡績糸の単糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）６．０回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力３７．８Ｎの双糸を得た。Ｔ２／Ｔ１の比率は４３％である。
さらに、双糸を２本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．５ウェール／インチ、手の平部の目付が３１８ｇ／ｍ２の手袋を編みあげた。手袋の切創力、作業性、ちくちく感、装着性を表１にまとめた。
(Comparative Example 1)
Two single yarns of the spun yarn obtained in Example 1 were aligned, and a double twister (T 2 ) 6.0 times / inch reverse (S) twist was added to give a yarn count of 20/2 (cotton Count), a double yarn having a tensile strength of 37.8 N was obtained. The ratio of T 2 / T 1 is 43%.
Further, by aligning two Draw ply yarn, 10 supplies the gauge type of gloves knitting machine (Co. Shima Seiki Mfg.), 12.5 wales / inch, basis weight of palm portion knitted gloves 318 g / m 2 I gave it. Table 1 summarizes the cutting ability, workability, tactile sensation, and wearability of gloves.
（比較例２）
アラミド短繊維糸条として、繊度３．３ｄｔｅｘのパラ系アラミド繊維（東レ・デュポン（株）製“Ｋｅｖｌａｒ（Ｒ）２９”、引張強度２０．３ｃＮ／ｄｔｅｘ）にステープル加工を施した、繊維長５１ｍｍ、捲縮数約８山／インチのパラ系アラミド短繊維１００％を用いた。これを、開綿機、カード、練条の順で通しスライバーとした。次に、これをリング精紡機に仕掛け、撚数（Ｔ１）１３．０回／インチ、撚係数２．９、撚り方向がＺ撚りの撚りを加えて、糸番手２０（綿番手）、引張強力１６．９Ｎの紡績糸の単糸を得た。この紡績糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）８．４回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力３８．５Ｎの双糸を得た。Ｔ２／Ｔ１の比率は６５％である。
さらに、双糸を５本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．３ウェール／インチ、手の平部の目付が３２３ｇ／ｍ２の手袋を編みあげた。手袋の切創力、作業性、ちくちく感、装着性を表１にまとめた。
(Comparative Example 2)
Para-aramid fiber with a fineness of 3.3 dtex (“Kevlar (R) 29” manufactured by Toray DuPont Co., Ltd., tensile strength: 20.3 cN / dtex) as aramid short fiber yarn, fiber length 51 mm 100% para-aramid short fibers having a crimp number of about 8 ridges / inch were used. This was made into a sliver in the order of the cotton spreader, card, and strip. Next, this was put on a ring spinning machine, and twist number (T 1 ) 13.0 times / inch, twist coefficient 2.9, twist direction Z twist was added, yarn count 20 (cotton count), tension A single yarn of spun yarn having a strength of 16.9 N was obtained. Two spun yarns are aligned, and a twist (T 2 ) of 8.4 turns / inch is added with a double twister, and the yarn count is 20/2 (cotton count) and tensile strength is 38.5N. I got a double thread. The ratio of T 2 / T 1 is 65%.
Further, by aligning five Draw ply yarn, 10 supplies the gauge type of gloves knitting machine (Co. Shima Seiki Mfg.), 12.3 wales / inch, basis weight of palm portion knitted gloves 323 g / m 2 I gave it. Table 1 summarizes the cutting ability, workability, tactile sensation, and wearability of gloves.
実施例１および実施例２で得た手袋は、切創力９．７〜９．９Ｎという極めて高い値を示し、かつ作業性、ちくちく感、装着性において良好な結果を示した。一方、比較例１で得た手袋は、逆撚りが不足しているため、残留トルクによって手袋使用中に編地が斜行してしまい、作業性を著しく悪化させた。比較例２で得た手袋は、切創力が優れていたが、単糸の撚係数が３．０に満たない甘撚りであったため、アラミド短繊維の毛羽によるちくちく感があった。 The gloves obtained in Example 1 and Example 2 showed extremely high values of 9.7 to 9.9 N in cutting force, and showed good results in workability, tingling feeling, and wearability. On the other hand, since the glove obtained in Comparative Example 1 lacks reverse twist, the knitted fabric is skewed during use of the glove due to residual torque, and the workability is remarkably deteriorated. The glove obtained in Comparative Example 2 was excellent in cutting force, but had a tingling sensation due to the fluff of aramid short fibers because the twisting factor of the single yarn was less than 3.0.
（比較例３）
繊度２．５ｄｔｅｘのパラ系アラミド繊維（東レ・デュポン（株）製“Ｋｅｖｌａｒ（Ｒ）２９”、引張強度２０．３ｃＮ／ｄｔｅｘ）にステープル加工を施した、繊維長５１ｍｍ、捲縮数約８山／インチのパラ系アラミド短繊維１００％を用いた。これを、開綿機、カード、練条の順で通しスライバーとした。次に、これをリング精紡機に仕掛け、撚数（Ｔ１）１４．１回／インチ、撚係数３．１、撚り方向がＺ撚りの撚りを加えて、糸番手２０（綿番手）、引張強力１８．３Ｎの紡績糸の単糸を得た。この紡績糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）７．０回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力４１．４Ｎの双糸を得た。Ｔ２／Ｔ１の比率は５０％である。
さらに、双糸を２本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．５ウェール／インチ、手の平部の目付が３０５ｇ／ｍ２の手袋を編みあげた。手袋の切創力、作業性、ちくちく感、装着性を表１にまとめた。
(Comparative Example 3)
Para-aramid fiber with a fineness of 2.5 dtex ("Kevlar (R) 29" manufactured by Toray DuPont Co., Ltd., tensile strength 20.3 cN / dtex), staple length, 51 mm fiber length, about 8 crimps 100% para-aramid short fibers / inch are used. This was made into a sliver in the order of the cotton spreader, card, and strip. Next, this was applied to a ring spinning machine, and twist number (T 1 ) 14.1 times / inch, twist coefficient 3.1, twist direction Z twist was added, yarn count 20 (cotton count), tension A single yarn of 18.3N spun yarn with high strength was obtained. Two spun yarns are aligned, and a twist (T 2 ) 7.0 times / inch reverse (S) twist is added with a double twister, the yarn count is 20/2 (cotton count), and the tensile strength is 41.4 N I got a double thread. The ratio of T 2 / T 1 is 50%.
In addition, two double yarns are aligned and supplied to a 10 gauge type glove knitting machine (Shimane Seiki Seisakusho Co., Ltd.), and knitted gloves with 12.5 wal / inch and a hand weight of 305 g / m 2 are provided. I gave it. Table 1 summarizes the cutting ability, workability, tactile sensation, and wearability of gloves.
比較例３で得た紡績糸と、実施例１で得た紡績糸の引張強力は同程度であった。一方、編みあげた手袋の評価では、切創力の差が顕著であり、短繊維の単糸繊度が２．５ｄｔｅｘでは切創力が向上しないことが分った。 The spun yarn obtained in Comparative Example 3 and the spun yarn obtained in Example 1 had the same tensile strength. On the other hand, in the evaluation of the knitted gloves, it was found that the difference in the cutting force was remarkable, and the cutting force was not improved when the single yarn fineness of the short fiber was 2.5 dtex.
（比較例４）
実施例１で得た紡績糸双糸を５本引き揃えて、７ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、手の平部の目付が５６０ｇ／ｍ２の手袋を編みあげた。その評価結果を表１に示すように、手袋を厚くすることで切創力は向上したが、ちくちく感や重ね履き性に劣っており、所望の性能まで到達しなかった。
(Comparative Example 4)
Five spun yarns obtained in Example 1 are drawn together and supplied to a 7 gauge type glove knitting machine (Shimane Seiki Seisakusho Co., Ltd.), and a glove having a palm weight of 560 g / m 2 is knitted. It was. As shown in Table 1, the cutting force was improved by increasing the thickness of the glove as shown in Table 1, but it was inferior to the tactile sensation and the layering ability, and did not reach the desired performance.
（実施例３）
繊度３．３ｄｔｅｘのパラ系アラミド繊維（東レ・デュポン（株）製“Ｋｅｖｌａｒ（Ｒ）２９”、引張強度２０．３ｃＮ／ｄｔｅｘ）にステープル加工を施した、単繊維の繊維長６４ｍｍ、捲縮数約８山／インチのパラ系アラミド短繊維１００％を用いた。これを、開綿機、カード、練条の順で通しスライバーとしたものをリング精紡機に仕掛け、撚数（Ｔ１）１５．７回／インチ、撚係数３．５、撚り方向がＺ撚りの撚りを加えて、糸番手２０（綿番手）、引張強力１６．７Ｎの紡績糸の単糸を得た。この紡績糸を２本引き揃え、ダブルツイスターで撚数（Ｔ２）７．８回／インチの逆（Ｓ）撚りを加えて、糸番手が２０／２（綿番手）、引張強力４２．９Ｎの双糸を得た。Ｔ２／Ｔ１の比率は５０％である。
さらに、双糸を２本引き揃えて、１０ゲージタイプの手袋編み機（（株）島精機製作所）に供給して、１２．５ウェール／インチ、手の平部の目付が３１４ｇ／ｍ２の手袋を編みあげた。表１に示すように、手袋の切創力、作業性、ちくちく感および装着性に優れていた。
(Example 3)
Para-aramid fiber with a fineness of 3.3 dtex ("Kevlar (R) 29" manufactured by Toray DuPont Co., Ltd., tensile strength 20.3 cN / dtex), staple processing, single fiber fiber length 64 mm, crimped number About 100% para-aramid short fibers of about 8 threads / inch were used. This was made into a ring spinning machine with a sliver in the order of cotton spreader, card, and kneading, and the number of twists (T 1 ) was 15.7 times / inch, the twist coefficient was 3.5, and the twist direction was Z twist. Was added to obtain a spun single yarn having a yarn count of 20 (cotton count) and a tensile strength of 16.7 N. Two spun yarns are aligned, and a twist (T 2 ) twist of 7.8 turns / inch is added with a double twister, the yarn count is 20/2 (cotton count), and the tensile strength is 42.9N. I got a double thread. The ratio of T 2 / T 1 is 50%.
Further, by aligning two Draw ply yarn, 10 supplies the gauge type of gloves knitting machine (Co. Shima Seiki Mfg.), 12.5 wales / inch, basis weight of palm portion knitted gloves 314 g / m 2 I gave it. As shown in Table 1, the glove's cutting ability, workability, tactile sensation, and wearability were excellent.
本発明の紡績糸は、作業用手袋の他、消防服、レーシングスーツ、製鉄・溶接用作業服などの防護材として好適に用いられる。 The spun yarn of the present invention is suitably used as a protective material for work gloves, fire fighting clothes, racing suits, iron / welding work clothes, and the like.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015006678A JP6465480B2 (en) | 2015-01-16 | 2015-01-16 | Spun yarn, fiber structures and protective materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015006678A JP6465480B2 (en) | 2015-01-16 | 2015-01-16 | Spun yarn, fiber structures and protective materials |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016132833A JP2016132833A (en) | 2016-07-25 |
| JP2016132833A5 JP2016132833A5 (en) | 2018-02-01 |
| JP6465480B2 true JP6465480B2 (en) | 2019-02-06 |
Family
ID=56437643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015006678A Active JP6465480B2 (en) | 2015-01-16 | 2015-01-16 | Spun yarn, fiber structures and protective materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6465480B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3038795A1 (en) * | 2016-11-28 | 2018-05-31 | Granberg AS | Three-dimensional, 3d, knitted fabric, and method of manufacturing same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3383391B2 (en) * | 1993-12-28 | 2003-03-04 | 東レ株式会社 | Anti-cut wound fabric |
| JP3437887B2 (en) * | 1995-12-15 | 2003-08-18 | 東レ・デュポン株式会社 | Spun yarn, fiber structure and protective material with excellent flexibility and cut resistance |
| JP4114112B2 (en) * | 1998-11-12 | 2008-07-09 | 東レ・デュポン株式会社 | Spun yarn, fiber structure and protective material made of short polyparaphenylene terephthalamide fiber |
| US20080085411A1 (en) * | 2006-10-10 | 2008-04-10 | Larry John Prickett | Multidenier fiber cut resistant fabrics and articles and processes for making same |
| JP2008274495A (en) * | 2007-05-07 | 2008-11-13 | Asahi Kasei Fibers Corp | Composite spun yarn |
| JP5787438B2 (en) * | 2011-04-08 | 2015-09-30 | 東レ・デュポン株式会社 | Core-sheath type long / short composite spun yarn |
| JP5916107B2 (en) * | 2012-03-29 | 2016-05-11 | 東レ・デュポン株式会社 | Composite yarn and its knitted fabric |
-
2015
- 2015-01-16 JP JP2015006678A patent/JP6465480B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016132833A (en) | 2016-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5259803B2 (en) | Composite fiber | |
| CA2663184C (en) | Multidenier fiber cut resistant fabrics and articles and processes for making same | |
| KR101890566B1 (en) | Glove and Glove manufacturing method using tungsten yarn | |
| JP5916107B2 (en) | Composite yarn and its knitted fabric | |
| KR102387838B1 (en) | Cut resistant glove and manufacturing method thereof | |
| US20090017300A1 (en) | Textile fabric and protective clothing containing the fabric | |
| JP2016132841A (en) | Blended yarn | |
| US20210189609A1 (en) | Methods and systems for forming a composite yarn | |
| JP6883919B2 (en) | Cut resistant gloves | |
| JP3437887B2 (en) | Spun yarn, fiber structure and protective material with excellent flexibility and cut resistance | |
| JP6465480B2 (en) | Spun yarn, fiber structures and protective materials | |
| JP7105025B2 (en) | Double covering yarn and fabric using same | |
| EP3266916B1 (en) | Knitted glove and method for producing knitted fabric contained in knitted glove | |
| EP1549792A2 (en) | Cut resistant fabric and glove | |
| US20080085646A1 (en) | Multidenier fiber cut resistant fabrics and articles and processes for making same | |
| JP6351169B2 (en) | Long / short composite spun yarn and woven / knitted fabric / protective material using the same | |
| JP6744687B2 (en) | Mixed knit and mixed gloves | |
| JP7489749B2 (en) | Fabric for protective products and textile products using same | |
| JP6917669B2 (en) | Cut resistant fabric | |
| JP4256039B2 (en) | Composite yarn, fiber structure and manufacturing method thereof | |
| JP6710008B2 (en) | Cut resistant spun yarn | |
| JP7503884B2 (en) | Fiber Structures | |
| JP2004060112A (en) | Spun yarn having excellent wound-proofness | |
| JP6685071B2 (en) | Crimped aramid staple fiber, high-strength spun yarn made of the same, fiber structure and protective material | |
| JP2023047523A (en) | Composite yarn and fabric formed of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20171214 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20171214 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20181207 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20190107 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20190107 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6465480 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |