200540305 (1) 九、發明說明 【發明所屬之技術領域】 本發明係關於高強力牽切加工紗及其製造方法。更詳 細而言’係關於原紗的強力維持率高，且強力的參差不齊 少之局強力牽切加工紗、及可穩定地生產該高強力牽切加 工紗之製造方法。 | 【先前技術】 由於對位型全芳香族聚醯胺纖維爲代表之高強力纖 維’爲高耐熱性且耐切傷性，故在衣料用途領域，作爲紡 織紗而朝防護衣料用途發展。但，以往使用高強力纖維之 紡織紗’係會有加工紗的強度比起加工前原紗之強度明顯 變小（強度維持率低），且紡織紗特有的表面細毛多之缺 點。因此，不易朝需要高強力且表面細毛少之紡織紗的用 途發展。 p 通常紡織紗的強力係與構成該紡織紗的單紗（原紗） 之強度、及單紗之平均紗長度成比例。但，由於在提昇原 紗之強度上會有界限，故雖然適合增長構成單紗的平均紗 長度而提高原紗的強度維持率，但在以往的紡織紗，一般 單紗長度爲1 00mm以下，由如此短纖維所構成之紡織紗 的強度維持率也僅能維持在5 0%以下。 但使用較該長度更長之單紗（短纖維），由於不僅在 製造紡織紗上困難，且僅增長單紗長度，會產生高強度纖 維特有的剛直性，而變得無法均等地配向，故反而造成強 -4- 200540305 (2) 度維持率降低之問題產生。 爲了解決如此問題，在日本特公平1 - 1 6 9 3 2號公報， 提案有：用拉引切成細絲方式來將連續紗條短纖維化，製 作有平均單紗長度爲130〜600mm的纖維所構成之賦予了 結合（conjugation )性的全芳香族聚醯胺紡織紗般的紗 條。但，若根據本發明者的硏究，可得知，當在上述公報 所記載的條件下，欲製造例如聚對苯二甲醯對苯二胺 (poly (p-phenylene terephthalamide ; PPTA)纖維之紡織 紗般紗條時，會有強度維持率及表面細毛數容易變動之問 題。即，在使用聚對苯二甲醯對苯二胺作爲全芳香族聚醯 胺纖維之情況時’在進行牽切加工之際，由於粗纖維藉由 受到單紗相互的摩擦所產生的靜電而顯著地擴展，且這在 滾筒上造成紊亂，故無法均等地進行牽切。其結果，由於 使得單紗長度的變動大，強度維持率小，故即使使用高強 力纖維，也會有使該加工紗的強度降低，強度的參差不齊 也變大，並且表面細毛也顯著地增加之問題產生。 上述強度維持率降低之問題可藉由增長平均單紗長度 而被改善，但因此必須增長牽切長度，而造成在滾筒間， 粗纖維進一步變得容易擴展，而變得容易捲繞到供給滾筒 或牽切滾筒之問題產生，形成不易穩定地進行牽切加工。 如此，實際上，使用聚對苯二甲醯對苯二胺纖維般受 到單紗相互的摩擦而容易產生靜電之纖維，來製造平均單 紗長度長且該單紗長度的爹差不齊小之局品質的局強力牽 切加工紗及其製造方法尙未被提出。 -5- 200540305 (3) 【發明內容】 本發明係用以解決上述以往技術所存在的問題點而開 發完成之發明，其目的在於提供原紗的強力維持率高，且 強力的參差不齊少之高強力牽切加工紗、及可穩定地生產 該高強力牽切加工紗之製造方法。 本發明者們，反復檢討用用以解決上述課題之結果， 而完成了本發明。 即’本發明之目的係藉由下述所達成的。也就是，藉 由一種高強力牽切加工紗，係從由聚對苯二甲醯對苯二 月女、聚對苯二甲醯苯惡Π坐（p〇ly (p-phenylene benzoxazole)、聚乙嫌、聚乙儲醇（polyvinyl alcohol)及 全芳香族聚酯所構成之群所選擇的至少一種聚合物所形成 的’由其強度爲14cN/dtex以上的高強力短纖維所構成之 高強力牽切加工紗，其特徵爲：該高強力短纖維的平均單 紗長度爲50〜90mm，且平均單紗長度的變動係數（CV ) 爲5 0%以下；及一種高強力牽切加工紗的製造方法，係將 高強力纖維在滾筒間距離100〜200cm之一對供給滾筒與 牽切滾筒之間，賦予濕度80%以上之濕潤流體後加以拉引 切成細絲，接著以流體噴嘴加以結合後取出，該高強力纖 維爲從由聚對苯二甲醯對苯二胺、聚對苯二甲醯苯惡唑、 聚乙烯、聚乙烯醇及全芳香族聚酯所構成之群所選擇的至 少一種聚合物所形成，其強度爲14cN/dtex以上，來達到 200540305 (4) 【實施方式] 以下，詳細地說明本發明的實施形態。 構成本發明的牽切加工紗之高強力短纖維，係需要強 度爲 14cN/dtex以上、理想爲 18〜50cN/dtex以上之範 圍。在該強度未滿14cN/dtex之情況時，作爲牽切加工紗 之強度變得不充分，無法達到本發明的目的。作爲理想使 用之高強力短纖維，能夠舉出聚對苯二甲醯對苯二胺短纖 維、聚對苯二甲醯苯惡唑短纖維、高強力聚乙烯短纖維、 高強力聚乙烯醇短纖維、全芳香族聚酯短纖維等，這些亦 可混合2種以上來加以使用。其中，聚對苯二甲醯對苯二 胺短纖維最理想。 高強力短纖維的單紗纖度係因當過大時，牽切加工紗 的構成單紗條數會變少，單紗相互的糾纏減少造成容易使 牽切加工紗之強度降低，所以期望爲2.5dtex以下，理想 爲l.ldtex以下，更理想爲〇.8dtex以下。 其次，構成本發明的牽切加工紗之上述高強力短纖維 的平均單紗長度需要在50〜90cm的範圍，特別是60〜 80cm之範圍。在該平均單紗長度未滿5〇cm之情況時，對 於短纖維（原紗）的強度之牽切加工紗的強度維持率（牽 切加工紗之強度/短纖維之強度）變小，原紗的強度無法 充分地發揮。一方面，在平均單紗長度高過90cm之情況 時，爲了獲得該牽切加工紗，而必須將進行牽切加工時的 牽切長度作成2.0m以上，其結果，在牽切部分的粗纖維 -7- 200540305 (5) 被顯著地開纖，頻繁產生捲繞到滾筒之情事，變得無 定地進行牽切加工。 又，本發明之高強力牽切加工紗，係需要將該單 度的變動係數（CV )作成50%以下，特別是4〇%以 當此變動係數（CV )超過50%時，則由於單紗長度 差不齊變得過大’造成牽切加工紗之強度參差不齊， 是強度的標準偏差變大，無法達到提供均等且高品質 切加工紗之本發明的目的。 且，本發明的高強力牽切加工紗，其強度維持率 爲7 0%以上。其中，在此所稱的強度維持率係在以複 類的短纖維構成牽切加工紗之情況時，對於強度低的 維之強度的維持率。在該維持率未滿70%之情況時， 無法有效地發揮短纖維（原紗）所具有的強度，由於 單紗長度也短，造成表面細毛變多，限制了該牽切加 之利用用途。 其次使用圖面，詳細說明以上說明過的本發明之 加工紗的理想製造方法。圖1係顯示使用於製造本發 牽切加工紗之理想的牽切加工裝置。1爲供給夾持 (nip roller ) 、2爲噴射器、3爲牽切夾持滾筒、4 引性空氣噴嘴、5爲迴旋性結合噴嘴、6爲 (delivery )滾筒、7爲捲取牽切加工紗、8爲高強 維。 高強力纖維係在供給軋輥之前，一邊將期望的條 引一致而加以重疊，一邊使其通過供給軋輥之後，在 法穩 紗長 下。 的參 也就 的牽 理想 數種 短纖 不僅 構成 工紗 牽切 明的 滾筒 爲吸 遞送 力纖 數拉 噴射 -8 - 200540305 (6) 器中進行牽切（拉引切成細絲加工）。此時，將 80%以上的濕潤流體例如濕潤空氣供給至噴射器內 高強力纖維。其次，以吸引性空氣噴嘴由牽切軋輥 來，接著藉由迴旋性結合噴嘴，來賦予根據糾纒或 毛之結合性後，藉由遞送（delivery )輥來取出。 在此所用的高強力纖維係因如上所述般，藉由 工來作成短纖維，所以其強度需要作成14cN/dtex φ 理想爲 18〜5 OcN/dtex以上之範圍。在該強j 14cN/dtex之情況時，進行牽切加工後的短纖維強 不充分，無法獲得本發明之牽切加工紗。作爲理想 高強力短纖維，能夠舉出聚對苯二甲醯對苯二胺短 聚對苯二甲醯苯惡唑短纖維、高強力聚乙烯短纖維 力聚乙烯醇短纖維、全芳香族聚酯短纖維等，這些 合2種以上來加以使用。其中，聚對苯二甲醯對苯 纖維最理想。 φ 在本發明，在上述的高強力纖維，油劑以纖維 基準，附著0 . 〇 5〜0.5重量％爲佳，又該附著油劑 率爲7.0重量％以下爲佳。在油劑附著量未滿〇·〇5 之情況時，在進行後述的拉引切成細絲加工之際’ 得容易帶電，粗纖維受到因靜電所造成之反作用而 造成變得容易斷紗，無法穩定地進行牽切加工。一 在油劑附著量超過0.5重量％之情況時，由於因油 生的纖維聚合效果，故在進行牽切加工之際’粗纖 充分地開纖，構成牽切紗的單紗長度之參差不齊 濕度爲 後賦予 拉引出 捲附細 牽切加 以上、 隻未滿 度變得 使用之 纖維、 、高強 亦可混 二胺短 重量爲 之含水 重量% 纖維變 散亂， 方面， 劑所產 維無法 變大。 -9- 200540305 (7) 又，在附著油劑之含水率超過7 · 0重量％之情況時’由於 會有因該水分所造成之纖維聚合效果，故容易產生與油劑 附著量超過〇 . 5重量％之情況時相同的現象。 在本發明，藉由拉引切成細絲方式來將上述高強力纖 維在供給軋輥與牽切輥之間加以短纖維化後，一邊防止該 纖維排列紊亂，一邊使該短纖維不會脫離於長方向（取出 方向）地，以流體噴嘴結合而取出。在進行此拉引切成細 絲處理之際，爲了儘可能地不會使已被拉因切成細絲之短 纖維的排列紊亂，而附加漏斗狀導件來覆蓋等的方法爲 佳。 在本發明，在進行此拉引切成細絲處理之際，賦予該 高強力纖維濕度80%以上、理想爲90%以上、更理想爲 9 5 %以上之濕潤流體爲佳，特別是濕潤空氣爲佳。在該濕 潤流體的濕度未滿80%之情況時，因會造成使在纖維表面 所帶電的靜電放電之效果減少，受到纖維彼此的反作用， 造成粗纖維散亂而使得單紗容易捲繞到供給滾筒或牽切滾 筒，變得無法穩定地進行牽切加工，所以並不理想。又， 爲了減少牽切長度之參差不齊，而需要在牽切滾筒的表 面，將纖維均等地開纖，但當過度地開纖時，則由於單紗 容易捲繞到供給滾筒與牽切滾筒，故賦予此濕潤流體爲重 要的。 一對供給滾筒與牽切滾筒之間的距離（牽切長度）係 100〜200 cm之範圍，理想爲12〇〜175 cm之範圍。在該牽 切長度未滿1 0 0 c m之情況時，所獲得的牽切加工紗之平 -10- 200540305 (8) 均單紗長度則形成未滿40cm，原紗的強力維持率變小而 形成未滿7 0 %，變得無法達到本發明之目的。一方面，在 牽切長度超過200cm之情況時，由於在供給滾筒與牽切 滾筒之間，粗纖維寬度顯著地變廣，故單紗容易捲繞到牽 切滾筒，無法穩定地進行牽切加工，因此並不理想。200540305 (1) IX. Description of the invention [Technical field to which the invention belongs] The present invention relates to a high-strength drafting yarn and a method for manufacturing the same. More specifically, it relates to a method for producing a high-strength cut processing yarn by stably cutting the processed yarn with a high strength maintenance rate of the original yarn and a small amount of variation in the strength. [Previous technology] Since para-type wholly aromatic polyamide fibers are represented by high-strength fibers', which are highly heat-resistant and cut-resistant, they have developed into protective clothing in the field of clothing applications as textile yarns. However, in the past, a high-strength fiber-spun textile yarn 'system has the disadvantage that the strength of the processed yarn is significantly lower than that of the original yarn before the processing (the strength maintenance ratio is low), and the surface yarn peculiar to the textile yarn has many defects. Therefore, it is not easy to develop the use of a textile yarn that requires high strength and a small amount of fine hair on the surface. p Generally, the strength of a textile yarn is proportional to the strength of the single yarn (original yarn) constituting the textile yarn and the average yarn length of the single yarn. However, because there is a limit in increasing the strength of the original yarn, although it is suitable to increase the average yarn length of the single yarn to increase the strength maintenance rate of the original yarn, in the conventional textile yarn, the single yarn length is generally less than 100mm. The strength maintenance rate of a textile yarn composed of such short fibers can only be maintained below 50%. However, the use of single yarns (short fibers) longer than this length not only makes it difficult to manufacture textile yarns, but also increases the single yarn length, which results in the rigidity peculiar to high-strength fibers and makes it impossible to align uniformly. On the contrary, the problem of strong -4- 200540305 (2) degree maintenance is reduced. In order to solve such a problem, in Japanese Unexamined Patent Publication No. 1-1 6 9 3 2, the proposal is to short-fiberize a continuous sliver by drawing and cutting into filaments, and produce an average single yarn length of 130 to 600 mm. A sliver of fully aromatic polyamide textile yarn made of fibers with conjugation. However, according to the inventor's research, it can be understood that, under the conditions described in the above-mentioned publication, it is intended to produce, for example, poly (p-phenylene terephthalamide; PPTA) fibers. When spinning yarn-like slivers, there is a problem that the strength maintenance rate and the number of fine hairs on the surface are easily changed. That is, when using polyparaxylylene p-phenylenediamine as a wholly aromatic polyfluorene fiber, During cutting, the coarse fibers are significantly expanded by the static electricity generated by the friction between the single yarns, and this causes disturbances on the drum, so the drawing cannot be performed uniformly. As a result, the length of the single yarn is reduced. Large fluctuations and small strength maintenance ratios, even when using high-strength fibers, the strength of the processed yarn will be reduced, the unevenness in strength will also increase, and the surface fine hairs will increase significantly. The problem of reduction can be improved by increasing the average single yarn length, but it is necessary to increase the draft length, which causes the coarse fibers to further expand easily between the drums and become easier to roll. The problem of winding to the supply drum or the drawing drum is caused, and it is difficult to perform the drawing process stably. In this way, in fact, the use of polyparaphenylene terephthalate fiber is subject to the friction between the single yarns, and static electricity is easily generated. Fiber, to produce a strong single-stranded cut yarn with an average single yarn length that is long and the quality difference of the single yarn length is small. -5- 200540305 (3) [Summary of the Invention] The present invention is an invention developed and developed to solve the problems existing in the above-mentioned conventional technologies. The purpose of the invention is to provide a high-strength drawn processing yarn with high strength retention rate of the original yarn and strong unevenness, and stability. The method for producing the high-strength drawn yarn is produced by the present inventors. The inventors have repeatedly reviewed the results to solve the above-mentioned problems, and have completed the present invention. That is, the object of the present invention is achieved by the following. That is, by a high-strength draw-cutting yarn, p-lyne (p-phenylene benzoxazole), poly (p-phenylene benzoxazole), polymer Suspicion High-strength drafting yarn composed of high-strength short fibers with a strength of 14 cN / dtex or more formed of at least one polymer selected from the group consisting of polyvinyl alcohol and wholly aromatic polyester , Characterized in that: the average single yarn length of the high-strength staple fiber is 50 to 90 mm, and the coefficient of variation (CV) of the average single yarn length is 50% or less; and a manufacturing method of high-strength drawn yarn, The high-strength fiber is supplied between the supply roller and the cutting roller at a distance of 100 ~ 200cm between the rollers, and is given a moist fluid with a humidity of 80% or more, and then drawn and cut into filaments. High tenacity fiber is at least one polymer selected from the group consisting of poly (p-xylylene) p-phenylenediamine, poly (p-xylylene) benzoxazole, polyethylene, polyvinyl alcohol, and wholly aromatic polyester The formed material has a strength of 14 cN / dtex or more to achieve 200540305 (4) [Embodiment] Hereinafter, an embodiment of the present invention will be described in detail. The high-strength short fibers constituting the drawn yarn of the present invention need to have a strength of 14 cN / dtex or more, preferably 18 to 50 cN / dtex or more. When the strength is less than 14 cN / dtex, the strength of the drawn yarn becomes insufficient, and the object of the present invention cannot be achieved. As the ideal high-strength short fiber, there may be mentioned polyparaxylylene terephthalamide short fiber, polyparaxylylene benzoxazole short fiber, high-strength polyethylene short fiber, and high-strength polyvinyl alcohol short. Fibers, wholly aromatic polyester staple fibers, etc., and these may be used by mixing two or more kinds. Among them, poly (p-xylylene) p-phenylenediamine short fiber is most preferable. The single yarn fineness of high-strength staple fiber is too large, the number of single yarns of the drawn yarn will decrease, and the entanglement of the single yarns will reduce the strength of the drawn yarn, so it is expected to be 2.5 dtex. Hereinafter, it is preferably at most 1.1 dtex, and more preferably at most 0.8 dtex. Next, the average single yarn length of the high-strength staple fibers constituting the drawn yarn of the present invention needs to be in the range of 50 to 90 cm, particularly 60 to 80 cm. When the average single yarn length is less than 50 cm, the strength maintenance rate (strength of the drafting yarn / strength of the staple fiber) of the drawn processing yarn with respect to the strength of the short fiber (raw yarn) becomes smaller, and the original The strength of the yarn cannot be fully exerted. On the one hand, when the average single yarn length is more than 90 cm, in order to obtain the drawn yarn, the drawn length during the drawn process must be 2.0 m or more. As a result, the coarse fibers in the drawn portion -7- 200540305 (5) The fiber is significantly opened, and it is frequently wound into the drum, and it becomes a random drawing process. In addition, the high-strength draft processing yarn of the present invention needs to make the coefficient of variation (CV) of the unit degree to 50% or less, especially 40%. When the coefficient of variation (CV) exceeds 50%, The yarn length difference becomes too large, which causes the strength of the drawn yarn to be uneven, and the standard deviation of the strength becomes larger, which cannot achieve the purpose of the present invention to provide an even and high-quality cut yarn. In addition, the high-strength drawn yarn of the present invention has a strength maintenance rate of 70% or more. Here, the strength maintenance rate referred to herein is a maintenance rate for a low-strength dimension when the draft processing yarn is composed of a plurality of types of short fibers. When the maintenance rate is less than 70%, the strength of short fibers (raw yarns) cannot be effectively used. Because the single yarn length is also short, the number of fine hairs on the surface is increased, which limits the use of this drawing. Next, the preferred method for manufacturing the processed yarn of the present invention described above will be described in detail using drawings. Fig. 1 shows an ideal drafting processing device for manufacturing the drafting yarn of the present invention. 1 is a nip roller, 2 is an ejector, 3 is a pinch-clamping roller, 4 is an air-injection nozzle, 5 is a revolving combined nozzle, 6 is a delivery roller, and 7 is a coiling and cutting process Yarn, 8 is high-strength dimension. The high-strength fiber is passed through the supply roll and then overlaps the desired strands before being fed to the roll, and then stabilizes the yarn length. Several types of staple fibers are ideal for drawing not only the gauze yarns, but also the clear rollers, which are used to suck and deliver force fibers. Pulling jets -8-200540305 (6) The machine is used for drawing (drawing and cutting into filaments). At this time, 80% or more of a humid fluid such as humid air is supplied to the high-strength fibers in the ejector. Next, a suction air nozzle is used to draw the roll, and then a convolute bonding nozzle is used to give the binding property based on the rectification or hair, and then it is taken out by the delivery roller. The high-strength fiber used here is made of short fibers by a process as described above, so its strength needs to be made 14cN / dtex φ, preferably in the range of 18 to 5 OcN / dtex or more. In the case of this strong j 14 cN / dtex, the short fiber strength after the drawing process is insufficient, and the drawing process yarn of the present invention cannot be obtained. Examples of ideal high-strength short fibers include polyparaphenylene terephthalate, p-phenylenediamine short polyparaphenylene terephthaloxazole short fibers, high-strength polyethylene short fibers, polyvinyl alcohol short fibers, and wholly aromatic polymers. Ester short fibers and the like are used in combination of two or more kinds. Among them, polyparaphenylene terephthalate fiber is the most ideal. φ In the present invention, in the above-mentioned high-strength fiber, the oil agent is preferably adhered to 0.5 to 0.5% by weight based on the fiber, and the oil agent adhered ratio is preferably 7.0% by weight or less. When the amount of oil adhered is less than 0.05, it is easy to be charged when drawing and cutting into filaments as described later, and the coarse fibers are easily broken due to the reaction caused by static electricity. It is impossible to perform the drawing process stably. In the case where the amount of oil agent exceeds 0.5% by weight, due to the effect of oily fiber polymerization, the coarse fiber is fully opened during the drawing process, and the length of the single yarn constituting the drawing yarn is not uniform. After the humidity is given, the pull-out roll is attached with a fine pull-cut, and only the fibers that are not full become used, and high-strength can also be mixed with diamine with a short weight of water content%. The fibers are scattered. Cannot grow larger. -9- 200540305 (7) When the moisture content of the attached oil agent exceeds 70.0% by weight, 'because there is a fiber polymerization effect due to the moisture, the amount of adhesion to the oil agent is likely to exceed 0. The same phenomenon occurs in the case of 5% by weight. In the present invention, after the high-strength fiber is short-fiberized between a supply roll and a drawing roll by drawing into a filament, the short-fiber is prevented from being detached while preventing the disorder of the fiber arrangement. In the long direction (removal direction), the fluid nozzles are combined and taken out. When this drawing and cutting into filaments is performed, a method such as covering with a funnel-shaped guide is preferred so as not to disturb the arrangement of the short fibers that have been cut into filaments as much as possible. In the present invention, when the drawing and cutting into filaments are performed, the high-strength fiber is preferably provided with a humid fluid of 80% or more, preferably 90% or more, and more preferably 95% or more, particularly humid air Better. When the humidity of the wetting fluid is less than 80%, the effect of electrostatic discharge on the fiber surface will be reduced, and the reaction between the fibers will cause the coarse fibers to scatter, making it easy to wind the single yarn to the supply. Drums or drafting drums are not ideal for stable drafting. In addition, in order to reduce the unevenness of the cutting length, it is necessary to open the fibers evenly on the surface of the drawing drum. However, when the fiber is excessively opened, the single yarn is easily wound on the supply drum and the drawing drum. Therefore, it is important to impart this moist fluid. The distance (drawing length) between a pair of supply rollers and the drawing roller is in the range of 100 to 200 cm, and preferably in the range of 120 to 175 cm. When the drawing length is less than 100 cm, the obtained drawing processing yarn is flat -10- 200540305 (8) The average single yarn length is less than 40 cm, and the strength maintenance rate of the original yarn becomes small and The formation is less than 70%, making it impossible to achieve the object of the present invention. On the other hand, when the draft length exceeds 200 cm, the width of the coarse fiber is significantly widened between the supply drum and the draft drum, so that the single yarn is easily wound on the draft drum, and the draft process cannot be stably performed. And therefore not ideal.
以上所做的說明之本發明的牽切加工紗，係能夠適度 地撚紗後，將其使用於經紗及/或緯紗，織成期望密度， 再實施精鍊、熱定型、鬆弛、壓光加工等，作成織物。 實施例 以下，舉出實施例進一步詳細說明本發明之結構及效 果。再者，實施例之各物性係以下述的方法求出。 (1 )纖度、切斷強度、切斷伸長度、彈性率 以 JIS-L1013爲基準進行測定。其中，撚數爲 2 5 01/m 〇 _ ( 2 )單紗長度 由牽切加工紗，以不會切斷1 2 0條單紗的方式隨意取 出，在延伸該單紗的長度之狀態下所測定到的値之平均 値。 (3 )單紗長度之變動係數（CV ) 使用下述式子，由以上述方法所求取到的1 20條單紗 長度之標準偏差（σ )、與其平均紗長度（X )加以計 算。The above-mentioned drawn yarn of the present invention can be twisted properly, and then used in warp and / or weft yarns to weave to a desired density, and then subjected to refining, heat setting, relaxation, calendering, etc. To make a fabric. Examples Hereinafter, the structure and effects of the present invention will be described in more detail with examples. In addition, each physical property of an Example was calculated | required by the following method. (1) Fineness, cutting strength, cutting elongation, and elastic modulus were measured based on JIS-L1013. Among them, the number of twists is 2 5 01 / m 〇_ (2) The length of the single yarn is drawn from the draw processing yarn, and it is freely taken out so as not to cut 120 single yarns. In the state of extending the length of the single yarn The average radon measured. (3) The coefficient of variation (CV) of the single yarn length is calculated from the standard deviation (σ) of the length of 120 single yarns obtained by the above method and its average yarn length (X) using the following formula.
單紗長度之變動係數（CV ) ( % ) =α /XxlOO -11 - 200540305 (9) (4 )斷紗次數 作爲製程指標，將實施了 8小時的牽切加工之際的斷 紗次數（捲繞至供給滾筒或牽切滾筒之斷紗）作爲斷紗次 數。 [實施例1〜3、比較例1〜3] 使用圖1所示的裝置，將2條聚對苯二甲醯對苯二胺 纖維（Twaron (商品名稱）；帝人（Teijin ) Twaron 製）拉引一致，使滾筒間的距離（牽切長度）及濕潤空氣 的濕度如表1所示地加以改變，在供給夾持滾筒、噴射 器、牽切夾持滾筒之間，一邊賦予濕潤空氣，一邊以牽切 率大約形成10倍的方式，以3 00m/分之速度進行拉引切 成細絲，作成短纖維束。其中該聚對苯二甲醯對苯二胺纖 維係具有表1所記載的單紗纖度與油劑附著量，且總纖度 爲 llOOdtex，強度爲 21cN/dtex。 其次，在具有吸引性的空氣噴嘴與具有迴旋流之結合 噴嘴，以牽切夾持滾筒與遞送滾筒之速度比爲1 00:99.5 的方式通過，賦予糾纒並且隨意地捲繞短纖維之細毛，獲 得大約220 dt ex之牽切加工紗。將所獲得的加工紗的物性 顯示於表1。 [比較例4 ] 將 2 條 co-poly-paraphenylene · 3,4’-oxydiphenylene terephthalamide 纖維（TECHNORA (商品名稱）；帝人 (Teijin techno-products)製）拉引一致，將滾筒間之距 -12- 200540305 (ίο) 離（牽切長度）設爲120cm，在供給夾持滾筒、噴射器、 牽切夾持滾筒之間，一邊賦予濕度5 0%之濕潤空氣，一邊 以牽切率形成大約10倍的方式，以3 00m/分之速度進行 拉引切成細絲，作成短纖維束。 其次，在具有吸引性的空氣噴嘴與具有迴旋流之結合 噴嘴，以牽切夾持滾筒與遞送滾筒之速度比爲1 00 : 99·5 的方式通過，賦予糾纏並且隨意地捲繞短纖維之細毛’ ^ 得大約220dtex之牽切加工紗。將所獲得的加工紗的物性 一倂顯示於表1。Coefficient of variation of single yarn length (CV) (%) = α / XxlOO -11-200540305 (9) (4) The number of yarn breaks is used as a process index, and the number of yarn breaks during the 8-hour drawing process (volume) The number of yarn breaks is the number of yarn breaks wound around the supply drum or the cutting drum. [Examples 1 to 3, Comparative Examples 1 to 3] Using the apparatus shown in FIG. 1, two polyparaxylylene terephthalamide fibers (Twaron (trade name); Teijin Twaron) were pulled. The distance between the rollers (drawing length) and the humidity of the humidified air are changed as shown in Table 1. Between the supply of the clamping roller, the ejector, and the cutting and clamping roller, while giving the humidified air, The drawing rate was approximately 10 times, and it was drawn and cut into filaments at a speed of 300 m / min to form a short fiber bundle. The polyparaphenylene terephthalate fiber has the single yarn fineness and the amount of oil agent adhesion as described in Table 1, and the total fineness is 110 dtex and the strength is 21 cN / dtex. Secondly, it passes through the attractive air nozzle and the combined nozzle with swirling flow in a way that the speed ratio of the clamping roller to the delivery roller is 1 00: 99.5, which gives entanglement and winds the short hairs randomly. To obtain about 220 dt ex drawn yarn. Table 1 shows the physical properties of the obtained processed yarn. [Comparative Example 4] Two co-poly-paraphenylene · 3,4'-oxydiphenylene terephthalamide fibers (TECHNORA (trade name); Teijin techno-products) were drawn uniformly, and the distance between the rollers was -12- 200540305 (ίο) The separation (drawing length) is set to 120cm. Between the supply of the clamping roller, the ejector, and the drawing clamping roller, while providing humid air with a humidity of 50%, the cutting rate is about 10 times. At the speed of 300 m / min, it was drawn and cut into filaments to make short fiber bundles. Secondly, it passes through the attractive air nozzle and the combined nozzle with swirling flow in a way that the speed ratio of the clamping roller to the delivery roller is 100: 99 · 5, giving entanglement and randomly winding short fibers. Fine wool '^ yields a draw cut yarn of approximately 220 dtex. Table 1 shows the physical properties of the obtained processed yarn at a glance.
-13- 200540305 (11) [表1]-13- 200540305 (11) [Table 1]
單位 實施例1 實施例2 實施例3 原紗 原紗種類 特威龍 特威龍 特威龍 (Twaron ) (Twaron ) (Twaron ) 單紗纖度 dtex 1.1 1.1 1.1 油劑附著量 雷量％ 0.2 0.2 0.2 牽切 牽切長度 cm 120 150 175 條件 濕潤空氣 % 95 95 95 濕度 牽 纖度 dtex 221 222 220 切 強度 cN/dtex 15.4 16.1 16.8 加 平均單紗 cm 51 61 75 工 長度 紗 單紗長度 % 34 35 39 變動係數 強度維持率 % 73 77 80 強度標 cN/ 1.1 1.2 1.5 準偏差 dtex 斷紗次數 次/h 0 0 0 (8h) -14- 200540305 (12) 表1 (續） 單位 比較例1 比較例2 比較例3 比較例4 原紗 原紗種類 特威龍 特威龍 特威龍 德克拉 (Twaron ) (Twaron ) (Twaron ) (Technora) 單紗纖度 dtex 1.1 1.1 1.1 1.1 油劑 重量％ 0.2 0.2 0.2 0.2 附著量 牽切 牽切長度 cm 40 80 150 120 條件 濕潤空 % 95 95 50 50 氣濕度 牽 纖度 dtex 222 223 218 221 切 強度 cN/dtex 11.1 12.1 15.9 19.8 加 平均單 cm 19 42 55 50 工 紗長度 紗 單紗長度 % 30 31 63 34 變動係數 強度 % 44 48 76 79 維持率 強度標 cN/ 1.3 1.1 3.5 1.3 準偏差 dtex 斷紗次數 次/h 0 0 0 0 (8h) -15- 200540305 (13) [產業上之利用可能性] 因可獲 高，並 如在防 據本發 切加工 若根據本發明的話，比起以往的牽切加工紗， 得對於高強力短纖維的強度，加工紗的強力維持率 且其單紗長度的參差不齊小之牽切加工紗，所以例 護衣料領域，可提供高品質的防護衣料。又，若根 明的製造方法的話，能夠穩定地生產上述高強力牽 紗。 【圖式簡單說明】 使用之 圖1係顯示製造本發明的高強力牽切加工紗所 牽切加工裝置的1例之側面圖。 【主要元件符號說明】 1 ···供給夾持滾筒（nip roller ) 2…噴射器 φ 3 ···牽切夾持滾筒 4···吸引性空氣噴嘴 5 ···迴旋性結合噴嘴 6···遞送（delivery)滾筒 7···捲取牽切加工紗 8···高強力纖維。 -16-Unit Example 1 Example 2 Example 3 Type of raw yarn Raw yarn Tweon Tweon (Twaron) (Twaron) (Twaron) Single yarn fineness dtex 1.1 1.1 1.1 The amount of oil adhered to the amount of lightning 0.2% 0.2 0.2 Drawing and cutting length cm 120 150 175 Condition humidified air 95 95 95 95 Humidity drawing fineness dtex 221 222 220 Cutting strength cN / dtex 15.4 16.1 16.8 Plus average single yarn cm 51 61 75 Working length yarn single yarn length% 34 35 39 Change Coefficient strength maintenance rate% 73 77 80 Strength standard cN / 1.1 1.2 1.5 Quasi deviation dtex Number of yarn breaks / h 0 0 0 (8h) -14- 200540305 (12) Table 1 (continued) Unit comparison example 1 comparison example 2 comparison Example 3 Comparative Example 4 Type of raw yarn Raw yarn Tevlon Tevron Twaron (Twaron) (Technora) Single yarn fineness dtex 1.1 1.1 1.1 1.1 Oil weight% 0.2 0.2 0.2 0.2 Adhesion Cut-to-cut length cm 40 80 150 120 Conditional Humidity% 95 95 50 50 Air-to-moisture fineness dtex 222 223 218 221 Cut strength cN / dtex 11.1 12.1 15.9 19.8 Average cm 19 42 55 50 Yarn length Yarn single yarn length% 30 31 63 34 Variation coefficient strength% 44 48 76 79 Maintenance rate strength standard cN / 1.3 1.1 3.5 1.3 Quasi deviation dtex Number of yarn breaks / h 0 0 0 0 (8h ) -15- 200540305 (13) [Industrial application possibility] Because it can be obtained high, and if it is processed according to the present invention, if it is processed according to the present invention, it is shorter than high-strength processed yarns in the past. The strength of the fiber, the strength maintenance rate of the processed yarn and the unevenness of the single yarn length of the cut processing yarn, so for example in the field of protective clothing, can provide high-quality protective clothing. Moreover, if the manufacturing method is clarified, the above-mentioned high-strength draft can be stably produced. [Brief Description of the Drawings] Used Figure 1 is a side view showing an example of a drawing processing device for manufacturing the high-strength drawing processing yarn of the present invention. [Description of main component symbols] 1 ··· Supply nip roller 2… Ejector φ 3 ··· Clamping nip roller 4 ··· Attractive air nozzle 5 ··· Rotational combined nozzle 6 · ·· Delivery roller 7 ··· Winding and drawing processing yarn 8 ··· High-strength fiber. -16-