200304511 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係有關車縫縫孔緊密良好的車縫線者。本發明 之具高收縮性車縫線，係需爲耐久性良好且具較強的車縫 縫孔緊密之附有鈕扣用之車縫線，較合適用作防水或防風 製品用車縫線等。 【先前技術】 φ 車縫線係被使用於廣泛領域。因此，車縫線係依用途 不同，由以下的理由被強烈的要求較強的車縫縫孔的緊密 性。其理由可舉出有：（1 )使縫合布匹緊密附著並加強 縫合強度。（2 )防止開孔，使縫孔外觀美觀，又防止空 氣或水之洩漏。（3 )使車縫線附著並防止脫線等。 例如在補強縫合座席皮帶、皮包、鞋靴等的縫合端之 繫止縫合等的用途，尤以（1 )之理由被要求著較強的縫 孔緊密。 籲 向來，於此種較強的縫孔緊密被要求的用途方面，由 高拉力縫製可得較強的縫孔緊密。然而，在相關的高拉力 - 縫製方面，有可縫性之降低、車縫針折斷等引起的縫製麻 煩之大量發生’由車縫線之損傷引起的縫孔強度之降低等 問題。 對此，例如日本特開平6 — 2 7 2 1 2 8號公報、日本特開 平8 - 19944〇號公報等，被提出在縫製後需藉由熱處理可 使車縫線收縮。 -6 - (2) (2)200304511 然而，藉由採用具高收縮性車縫線之相關方法，雖然 加強恰在縫製後的縫孔緊密一事係可能的，但在縫孔緊密 的耐久性之點上可說仍係不足的，其改良乃被要求著。 【發明內容】 本發明之目的，係提供不僅較強的縫孔緊密，且具有 縫孔緊密優越的耐久性之車縫線。 上述目的係藉由本發明之具高收縮性車縫線予以達成 〇 本發明之具高收縮性車縫線係由在乾熱1 0(TC之熱收 縮率5 %以上的高收縮紗條及紗條表面上具有毛球之有毛 紗條所構成，且在乾熱1 0 0〜1 5 0 °C之車縫線的最大熱收 縮應力爲0」〜0.5 cN/dtex爲特徵者。 該時，以可得車縫線之抗拉強度在2〜4 cN/ dtex之 範圍優越的可縫性爲宜。 又，至於高收縮紗條及有毛紗條之重量比率，宜爲 30: 7 0 —70： 30° 本發明之具高收縮性車縫線，至於高收縮紗條以已共 聚合第三成分至聚對苯二甲酸乙二酯之共聚合聚酯多條長 纖維爲較合適的。另一方面，至於有毛紗條以聚酯紡紗爲 較合適。 本發明之具高收縮性車縫線，由較強的縫孔緊縮及其 耐久性之點，宜爲對高收縮紗條及有毛紗條經予各自施以 撚數100〜1 200 T/ m之下撚後，以下撚數之50〜95%的 (3) (3)200304511 上撚數予以合撚。 再者’本發明之具高收縮性車縫線，爲得經予染色的 具高收縮性車縫線，施以公知的染色處理後，以在常溫拉 伸即可。 實施發明而採的最佳形態 首先，構成本發明之具高收縮性車縫線之高收縮紗條 ，係以於乾燥100 °C之熱收縮率在5%以上（宜爲10〜50 % )爲必要的。該熱收縮率若較5 %亦低時，則未能獲得 較強的縫孔緊密，並不合適。相關的高收縮紗條，於乾熱 1 〇〇 °C之熱收縮率若在5 %以上時，則可任意使用天然纖 維或合成纖維或半合成纖維或已復合此等者等之習用公知 者。至於具有相關範圍之熱收縮率之纖維，如前述般若考 慮需得車縫線之指定的最大熱收縮應力時，則在製紗步驟 之熱固定未予完全施加，或經予少許熱固定的聚酯纖維， 或以對苯二甲酸乙二酯爲主要的重複單位，由共聚合等三 成分8〜30莫耳％ (對對苯二甲酸成分）的聚酯而成之共 聚合聚酯纖維係予以較宜的例示著。至於相關的第三成分 ’例如以使用間苯二甲酸、苯二羧酸、己二酸、癸二酸等 二官能性二羧酸、季戊二醇、丁烷二醇、二乙二醇、丙二 醇等二醇化合物等即可。又在不損及本發明之目的範圍內 ’視必要時，予以添加微細孔形成劑、陽離子可染劑、著 色防止劑、熱安定劑、耐燃劑、螢光增白劑、消光劑、著 色劑、抗靜電劑、吸濕劑、抗菌劑、無機微粒子等一種或 -8- (4) (4)200304511 二種以上亦可。 相關的高收縮紗條，可爲由多條長纖維而成者，亦可 爲由短纖維而成。其中在車縫線之強度上，以多條長纖維 爲宜。再者視必要時，亦可爲經予施加交織或塔斯編加工 等公知的空氣加工、或錠子假撚、摩擦輪假撚、皮帶假撚 等的公知之假撚捲縮加工。 至於前述高收縮紗條之總纖度之單纖度，雖未予特別 限定，惟以總纖度在 30〜3,000 dtex，單纖度在1〜10 dt ex範圍爲適當。至於形成高收縮紗條之單纖維的截面形 狀亦未予特別限定，可採用圖形、三角形、中空等公知的 截面形狀。再者亦可爲複合紗。 其次，構成本發明之具高收縮性車縫線之另一有毛紗 條，係於紗條表上具有毛球之紗條。至於相關的有毛紗條 ，宜爲有毛紗條之每長度1 cm具有長度0.5 mm以上的毛 球20個以上者。因此，有毛紗條之種類係未予特別限定 ，可例示有通常的紡紗，通常的紡紗及多條長纖間之複合 紗，表面上具有毛球之加工紗或創意紗等。其中，在可得 本發明之主目的的縫孔緊縮之優越的耐久性之點及製造成 本之點方面，以通常的紡紗爲尤其適合。 至於前述形成的有毛紗條之纖維之種類，未予特別限 定，可例示有聚酯纖維或螺縈纖維、棉等。其中在車縫線 之強度方面以聚酯纖維爲較合適。尤其以使用由聚酯短纖 而成的紡紗作爲有毛紗條係較宜的。於相關的聚酯內添加 微細孔形成劑、陽離子可染劑、著色防止劑、熱安定劑、 -9 - (5) (5)200304511 耐燃劑、螢光增白劑、消光劑、著色劑、抗靜電劑、吸濕 劑、抗菌劑、無機微粒子等一種或二種以上亦可。 前述有毛紗條之抗拉強度，宜爲2 cN/ dt ex以上（ 較宜爲3.5cN/dtex以上）。又，至於該有毛紗條之纖度 ，雖未予特別限定，惟以10〜1〇〇克之範圍爲合適。且， 至於形成有毛紗條之單纖的截面形狀未予特別限定。以圓 形、三角形、中空等公知的截面形狀即可。再者，該有毛 紗條亦可爲複合紗。 本發明之具高收縮性車縫線，係由上述的高收縮紗條 及有毛紗條所構成的。至於構成之形態，係例示有：（A )將各各經予施加下撚的高收縮紗條及有毛紗條合撚者， (B )將湊齊高收縮紗條及有毛紗條並施加下撚的紗條予 以多條湊齊並予合撚者，（C )將高收縮紗條作成芯並將 有毛紗條配至鞘的芯紡（Core spun )紗條或針板（ covering )紗條等。 其中，高收縮紗條及有毛紗條係由較強的縫孔緊縮及 其耐久性之點，宜爲各自經予施加撚數1 0 0〜1 2 0 0 T / m (較宜爲3 00〜1，〇〇0 T/m)之下撚後，以下撚數之50〜 95% (較宜爲60〜80%之上撚數）予以合撚。 該時際，前述的下撚可爲紡織撚。又高收縮紗條之下 撚數及有毛紗條之下撚數不同時，由較強的縫孔聚縮及其 耐久性之點，宜爲以較大的下撚數之5 0〜9 5 % (較宜爲 60〜80%之上撚數）予以合撚。 採用前述的高收縮紗條及有毛紗條，製造具高收縮性 -10- (6) (6)200304511 車縫線之際，高收縮紗條及有毛紗條之紗條根數並未予特 別限定，前者及後者之組合，可爲單數及單數、單數及複 數、複數及單數、複數及複數任一種。 其次，本發明之具高收縮性車縫線，於乾熱1 00〜 150°C之最大熱收縮應力有0.1〜0.5 cN/dtex (宜爲0.2 〜0.4 cN/ dtex )之必要。於該最大熱收縮應力較〇. 1 CN / dtex小時，車縫線在縫製現場利用熨斗或模壓之縫製機 器予以熱處理之際，由於收縮應力較小，未能獲得較強的 縫孔緊縮，故並不合適。反之，於該最大熱收縮應力超過 0.5 cN/ dtex時，對縫製布有賦與損傷之顧慮，並不合適 〇 具有相關的最大熱收縮應力之車縫線，至於前述的高 收縮紗條，採用在製紗步驟之熱固定並未予完全施行，或 僅予少許的熱固定的聚酯纖維，或對聚對苯二甲酸乙二酯 已共聚合第三成分之共聚合聚酯纖維，選定適當的製造條 件，可容易製得。 且，本發明所謂的最大熱收縮應力，係由採用鐘紡工 程（股）製的熱應力測定器計測的熱應力一溫度曲線，在 80〜150°C之範圍讀取最大熱應力値的値。 其次，本發明之具高收縮性車縫線，以高可縫性之點 且爲需在2〜4 cN/dtex (宜爲2.5〜3.5 cN/dtex)之範 圍作爲車縫線之抗拉強度。該抗拉強度較2 cN/ dtex小 時’有未能獲得高可縫性之顧慮。反之，該抗拉強度超過 4 cN/dtex時’有成爲高成本之顧慮。 -11 - (7) (7)200304511 於本發明之具高收縮性車縫線，至於前述高收縮紗條 及有毛紗條之重量比率，未予特別限定，因應用途可予適 當選擇。例如在重視較強的縫孔緊縮時，以高收縮紗之重 量比率較大者爲宜。又於重視高可縫性時，以有毛紗條之 重量比率較大者爲宜。一般而言，（高收縮紗條：有毛紗 條）之重量比率以30: 70〜70: 30(較宜爲35: 65〜65 :35 )爲較適當。 且，於本發明之具高收縮性車縫線，若爲本發明之目 的不受損的範圍內時，含有低收縮多條長纖維等其他紗條 亦可。 本發明之具高收縮性車縫線，可爲不施予染色，亦可 爲施予染色。對具高收縮性車縫線未施予染色時，採用前 述高收縮紗條及有毛紗條並構成車縫線之際，藉由適當選 定纖維種類或高收縮紗條及有毛紗條之重量比率等至車縫 線之最大熱收縮應力在前述範圍內可予製得。 另一方面，於高收縮車縫線經予染色時，於乾熱1 〇〇 °C之熱收縮率5 %以上的高收縮紗條及紗條表面上具有毛 球之有毛紗條可得車縫線且對該車縫線施以染色處理後， 藉由在常溫拉伸由染色處理而收縮的車縫線，而得本發明 之具高收縮性車縫線。 該時際，爲使拉伸後的車縫線之最大熱應力値在前述 的範圍內，可予適當選定伸長率。例如對欲增大熱收縮應 力値時，宜爲增加該拉伸率。然而，對該拉伸率超過染色 時之收縮率時，有紗條之損傷發生的顧慮。由此種之理由 -12- (8) (8)200304511 ，通常以該拉伸率在5〜50%之範圍爲較適當。 且，前述的常溫係不施以特別的加熱、冷却的溫度意 指0〜40°C的溫度。 由前述染色時之加熱使高收縮紗條收縮並使纖維構造 安定化，熱收縮應力雖可變成極小，但是在常溫拉伸使纖 維構造不安定化並可再顯現出收縮應力者。且至於前述染 色方法，以可充分的收縮的絞紗染色爲較合適的例示者。 本發明之具高收縮性車縫線，如前述般係由高收縮紗 條及有毛紗條所構成，且具有特定的熱收縮應力。因此， 採用本發明之具高收縮性車縫線並予縫製，若於縫孔部以 熨斗等施以熱處理時，則車縫線收縮可得較強的於縫孔緊 縮。又，由於本發明之具高收縮性車縫線所含的毛球之「 鈎破效應」，使車縫線及底布間之滑動可予降低，由收縮 而予緊縮的縫孔係可防止由於交錯而變鬆，較強的縫孔緊 縮係可予長期的保持著。同時，相關的有毛紗條之毛球係 可保護車縫線不受縫製時之熱或摩耗影響，故亦可予賦與 優越可縫性。 【實施方式】 其次詳細說明本發明之實施例及比較例，惟本發明並 非受此等所限定者。且，實施例中的各測定項目係以下述 方法予以測定。 <乾熱收縮率〉依；Π S L 1 0 1 3規定，測定乾熱1 〇 〇 t 之熱收縮率（％ )。 -13- 200304511 Ο) <抗拉強度 > 依Π S L 1 01 3規定，測定抗拉強度（ cN/ dt ex ) 〇 <縫孔緊縮性 > 使用車縫線，縫製三片嗶嘰後，採用 1 5 0 °C之蒸氣熨斗並對縫孔部施以丨分鐘的蒸汽處理，解 開縫孔紗（車縫線），以該縫孔紗之收縮率（％ )作爲縫 孔緊縮性之代用特性。 <縫孔緊縮之耐久性 > 使用車縫線，縫製六片嗶嘰後 ，採用1 5 0 °C之蒸氣熨斗並對縫孔部施以1分鐘的蒸汽處 理。以對相關的縫製品淸洗5次後，目視判定縫孔緊縮性 之良好與否。評估係以「非常優越」、「普通」、「低劣 」之三階段予以評估（η數=1 5 )。 〈可縫性〉採用本車縫，以3,000 spm之速度，縫針 # 1 4，一分鐘縫製縫製布嗶嘰二片並在車縫線未切斷的情 形爲「良好」，已切斷的情形爲「不良」。 實施例1 對間苯二甲酸成分係以全部酸成分爲基準並予10莫 耳％共聚合的固有黏度0.64之共聚合聚對苯二甲酸乙二 酯經予抽絲而得的未拉伸絲予以加熱拉伸而成的1 〇〇 dtex /36fil之高收縮紗條（於乾熱l〇〇°C之熱收縮率爲35% )施以S1200T/m之下撚。 另一方面，採用由公知的聚對苯二甲酸乙二酯而成， 由常用方法而得的支數64 / -之聚酯短纖維而成的紡織 紗作爲有毛紗條。該紡織紗內係施予ST1200T/m之紡織 -14 - (10) 200304511 撚（下燃），長度每1 cm有長度0.5 mm以上I 個以上存在著。 接著，將經予施以下撚的前述高收縮紗條2 紗條1根湊齊以Z 1 000T/ m合撚後，在130°C廷 鐘絞紗染色後，在常溫施以20 %之拉伸加工， 車縫線用油劑3重量％並得本發明之具高收縮性 由該具高收縮性車縫線取出高收縮紗條，測 1 00 °C之熱收縮率時爲1 5 %。該具高收縮性車 1 〇〇 °C熱收縮應力係成爲最大，最大熱收縮應力| / dt ex。又，該具高收縮性車縫線之抗拉強度焉 dtex。且最大熱收縮應力係採用鐘紡工程（股） 應力測定器予以計測，由熱應力一溫度曲線讀取 評估所得的具高收縮性車縫線之縫孔緊縮性 縮之耐久性、可縫性時，縫孔緊縮性12 %、縫 耐久性「優越」、可縫性「良好」。 實施例2 對間苯二甲酸成分係以全部酸成分爲基準並 耳％共聚合的固有黏度0.64之共聚合聚對苯二 酯經予加熱拉伸而成的100 dtex/ 36il之高收縮 乾熱l〇〇°C之熱收縮率爲35%)施以Sl2〇OT/: 〇 另一方面，採用由公知的聚對苯二甲酸乙二 由常用方法而得的支數53 / -之聚酯短纖維而 的毛球5 0 根及有毛 I行3 0分 再者賦與 車縫線。 定於乾熱 縫線’在 % 0.3 cN ^ 3 cN/ 製造的熱 〇 、縫孔緊 孔緊縮之 予10莫 甲酸乙二 紗條（於 m之下撚 酯而成， 成的紡織 -15- (11) (11)200304511 紗作爲有毛紗條。該紡織紗內係施予S 1 0 0 0 Τ / m之結織 撚（下撚），長度每1 cm有長度0.5 mm以上的毛球40 個以上存在基。 接著，將經予施以下撚的前述高收縮紗條2根及有毛 紗條1根湊齊以Z 1 000T / m合撚後，在13(TC進行30分 鐘絞紗染色後，在常溫施以2〇%之拉伸加工，再者賦車 縫線用油劑3重量％並得本發明之具高收縮性車縫線。 由該具高收縮性車縫線取出高收縮紗條，測定於乾燥 1 〇〇 °C之熱收縮率時爲14%，該具高收縮性車縫線在1〇〇 °C熱收縮應力係成爲最大，最大熱收縮應力爲0.25 cN/ dt ex。又，該具高收縮性車縫線之抗拉強度爲2.8 cN/ dt ex，且最大熱收縮應力係採用鐘紡工程（股）製造的熱 應力測定器予以計測，由熱應力一溫度曲線讀取。 評估所得的具高收縮性車縫線之縫孔緊縮性、縫孔緊 縮之耐久性、可縫性時、縫孔緊縮性1 0 %、縫孔緊縮之 耐久性「優越」、可縫性「良好」。 比較例1 除不採用實施例1之有毛紗條，僅採用高收縮紗條三 根外，餘以與實施例1同法，而得車縫線。 測定該車縫線之於乾熱100°C之熱收縮率時，爲20% 。該車縫線係在l〇(TC，熱收縮應力成爲最大，最大熱收 縮應力爲〇·3 cN/ dt ex。又該具高收縮性車縫線之抗拉強 度爲 3 .0 cN/ dtex。 -16- 200304511 (12) 評估所得的具高收縮性車縫線之縫孔緊縮性、縫孔緊 縮之耐久性、可縫性時，縫孔緊縮性16 %、縫孔緊縮之 耐久性「低劣」、可縫性「不良」。 產業上之可利用性 本發明之具高收縮性車縫線，不僅具有較強的縫孔緊 縮，而且有縫孔緊縮性優越的耐久性。因此，本發明之具 高收縮性車縫線，係需爲耐久性良好且較強的縫孔緊縮之 附有鈕扣用車縫線，較合適使用作防水、防風製品用車縫 線等。200304511 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a sewing thread with tight sewing holes. The highly shrinkable sewing thread of the present invention needs to be a sewing thread with good durability and a strong sewing seam with tight buttons and buttons, which is more suitable for sewing threads for waterproof or windproof products, etc. . [Previous technology] φ sewing thread system is used in a wide range of fields. Therefore, depending on the application, the sewing thread is strongly required to have a strong tightness of the sewing hole for the following reasons. The reasons are as follows: (1) The suture cloth is closely adhered and the suture strength is enhanced. (2) Prevent openings, make the appearance of the slits beautiful, and prevent leakage of air or water. (3) Adhere sewing thread and prevent it from falling off. For example, in the application of reinforcing stitches at the stitched ends of seat belts, purses, shoes, etc. to stop stitching, especially for reasons of (1), strong stitches are required to be tight. In the past, in the application where such a strong seam tightness is required, a strong seam can be obtained by high tension sewing. However, with regard to the related high-tension-sewing, there are problems such as a decrease in sewability, a large number of sewing troubles caused by broken stitches, and the like. A decrease in stitch strength caused by damage to a sewing thread. In this regard, for example, Japanese Patent Application Laid-Open No. 6-2 7 2 1 2 8 and Japanese Patent Application Laid-Open No. 8-199440 have been proposed, and it is proposed that the sewing thread should be contracted by heat treatment after sewing. -6-(2) (2) 200304511 However, by adopting the related method with high shrinkage stitching, although it is possible to strengthen the tightness of the seam hole just after sewing, but the durability of the tightness of the seam hole is tight. It can be said that it is still insufficient, and its improvement is required. [Summary of the Invention] The object of the present invention is to provide a sewing thread which has not only strong stitches and tightness, but also durability with superior tightness. The above object is achieved by the high shrinkage stitching thread of the present invention. The high shrinkage stitching thread of the present invention is made of high shrinkage sliver and yarn with a heat shrinkage of more than 5% in dry heat The surface of the strip is made of woolen yarn with a wool ball, and the maximum thermal shrinkage stress of a sewing thread at a dry heat of 100 to 150 ° C is 0 "to 0.5 cN / dtex. At this time, It is advisable to obtain superior sewnability with a tensile strength in the range of 2 ~ 4 cN / dtex of the available sewing thread. In addition, as for the weight ratio of the high shrinkage sliver and the wool sliver, it is preferably 30: 70 to 70. : 30 ° The sewing thread with high shrinkage of the present invention, as for the high-shrink yarn, a plurality of long fibers of a copolymerized polyester having copolymerized the third component to polyethylene terephthalate is more suitable. On the one hand, as for the woolen sliver, polyester spinning is more suitable. The point of high shrinkage of the sewing thread of the present invention, which is tightened by a strong seam and its durability, is suitable for high shrinkage sliver and Wool slivers are twisted at a number of twists of 100 to 1,200 T / m, and 50 to 95% of the following twists (3) (3) 200304511 Furthermore, 'the highly shrinkable sewing thread of the present invention is a pre-dyed highly shrinkable sewing thread, which can be stretched at normal temperature after being subjected to a known dyeing treatment. First, the high shrinkage sliver constituting the highly shrinkable stitching thread of the present invention requires a heat shrinkage rate of 5% or more (preferably 10 to 50%) for drying at 100 ° C. If the heat shrinkage rate is lower than 5%, it is not suitable to obtain strong seam tightness. The related high shrinkage sliver has a heat shrinkage rate of 5% at 1000 ° C in dry heat. In the above, you can use natural fibers or synthetic fibers or semi-synthetic fibers, or those known to be used in combination. As for the fibers with the relevant range of heat shrinkage, as mentioned above, if you consider the designation of sewing threads, The maximum heat shrinkage stress, the heat fixation in the yarn making step is not fully applied, or a little heat fixed polyester fiber, or ethylene terephthalate as the main repeating unit, such as copolymerization, etc. Three-component 8 to 30 mol% (terephthalic acid) polyester The resulting copolymerized polyester fiber is more appropriately exemplified. As for the related third component, for example, difunctional dicarboxylic acids such as isophthalic acid, phthalic acid, adipic acid, and sebacic acid are used. Diol compounds such as pentaerythrylene glycol, butanediol, diethylene glycol, propylene glycol, etc. may be added. Within the scope that does not impair the object of the present invention, if necessary, a micropore forming agent and a cation may be added Dyes, coloring inhibitors, heat stabilizers, flame retardants, fluorescent brighteners, matting agents, colorants, antistatic agents, hygroscopic agents, antibacterial agents, inorganic fine particles, etc. or -8- (4) (4 ) 200304511 Two or more types are also possible. The related high-shrink yarns can be made of multiple long fibers or short fibers. Among them, it is preferable to use a plurality of long fibers in the strength of the sewing thread. Furthermore, if necessary, it may be known air processing such as interlacing or tassel processing, or known false twist crimping such as spindle false twist, friction wheel false twist, belt false twist, and the like. As for the single fineness of the total fineness of the aforementioned high-shrink sliver, although it is not particularly limited, a total fineness of 30 to 3,000 dtex and a single fineness of 1 to 10 dt ex are appropriate. The cross-sectional shape of the single fiber forming the high-shrink sliver is not particularly limited, and a known cross-sectional shape such as a figure, a triangle, and a hollow can be used. It may also be a composite yarn. Secondly, another woolen yarn constituting the highly shrinkable sewing thread of the present invention is a yarn yarn having a wool ball on the yarn table. As for the related woolen sliver, it is preferred that the woolen sliver has more than 20 wool balls with a length of 0.5 mm or more per 1 cm in length. Therefore, the type of woolen sliver is not particularly limited, and examples thereof include ordinary spinning, ordinary spinning and a composite yarn between a plurality of filaments, and processing yarns or creative yarns with wool balls on the surface. Among them, ordinary spinning is particularly suitable in terms of obtaining the superior durability and the manufacturing cost of the slitting of the main object of the present invention. As for the kind of the fiber having the wool yarn formed as described above, it is not particularly limited, and examples thereof include polyester fiber, snail fiber, and cotton. Among them, polyester fiber is more suitable for the strength of sewing threads. In particular, it is preferable to use a spun yarn made of polyester staple fiber as the wool yarn. Adding micropore forming agent, cationic dyeing agent, coloring inhibitor, heat stabilizer, -9-(5) (5) 200304511 flame retardant, fluorescent whitening agent, matting agent, colorant, One or two or more kinds of antistatic agent, hygroscopic agent, antibacterial agent, and inorganic fine particles may be used. The tensile strength of the aforementioned wool yarn is preferably 2 cN / dt ex or more (more preferably 3.5 cN / dtex or more). As for the fineness of the woolen sliver, although it is not particularly limited, a range of 10 to 100 g is suitable. The cross-sectional shape of the single fiber on which the wool sliver is formed is not particularly limited. A known cross-sectional shape such as a circle, a triangle, or a hollow may be used. Furthermore, the woolen sliver may be a composite yarn. The highly shrinkable sewing thread of the present invention is composed of the above-mentioned high-shrink yarn and wool yarn. As for the configuration, it is exemplified as follows: (A) Twisting each of the high-shrinking sliver and the woolen sliver, and (B) Assembling the high-shrinking sliver and the woolen sliver, and applying Twisted slivers are made up and pre-twisted. (C) Core spun sliver or covering spun sliver with high shrinkage sliver as core and woolen sliver to sheath Wait. Among them, the high shrinkage sliver and the woolen sliver are tightened by the strong seams and their durability, which is preferably the number of twists applied by each 1 0 0 ~ 1 2 0 0 T / m (more preferably 3 00 After being twisted at a rate of less than 10,000 T / m), 50 to 95% of the lower twist number (preferably 60 to 80% of the upper twist number) is twisted together. In this case, the aforementioned under twist may be a textile twist. When the number of twists under the high shrinkage sliver is different from the number of twists under the woolen sliver, the strong shrinkage of the holes and the durability of the yarns are preferred. % (Preferably 60 to 80% of the number of twists) to twist. Using the aforementioned high shrinkage sliver and woolen sliver to produce high shrinkage -10- (6) (6) 200304511 When sewing stitching, the number of high shrinkage sliver and woolen sliver is not special The combination of the former and the latter can be any of singular and singular, singular and plural, plural and singular, plural and plural. Secondly, for the highly shrinkable stitching thread of the present invention, the maximum thermal shrinkage stress at dry heat of 100 to 150 ° C is necessary to be 0.1 to 0.5 cN / dtex (preferably 0.2 to 0.4 cN / dtex). When the maximum thermal shrinkage stress is less than 0.1 CN / dtex, when sewing threads are heat-treated at the sewing site by using an iron or a moulded sewing machine, due to the small shrinkage stress, a strong seam tightening cannot be obtained, so It is not appropriate. Conversely, when the maximum heat shrinkage stress exceeds 0.5 cN / dtex, it is not appropriate to worry about the damage to the sewing fabric. Seam threads with the related maximum heat shrinkage stress, as for the aforementioned high shrinkage sliver, use The heat-fixing in the yarn-making step is not fully implemented, or only a few heat-fixed polyester fibers, or a terephthalate copolymerized third component copolymerized polyester fiber, is selected appropriately The manufacturing conditions can be easily obtained. In addition, the so-called maximum thermal shrinkage stress of the present invention is a thermal stress-temperature curve measured by a thermal stress tester made by a bell spinning process (strand), and the maximum thermal stress 値 is read in a range of 80 to 150 ° C. Secondly, the high-shrinkage stitching thread of the present invention uses the point of high seamability as the tensile strength of the stitching thread within the range of 2 to 4 cN / dtex (preferably 2.5 to 3.5 cN / dtex). . When the tensile strength is smaller than 2 cN / dtex ', there is a concern that high seamability cannot be obtained. On the other hand, when the tensile strength exceeds 4 cN / dtex ', there is a concern that the cost becomes high. -11-(7) (7) 200304511 In the present invention, the high shrinkage stitching thread, the weight ratio of the aforementioned high shrinkage sliver and woolen sliver is not particularly limited, and can be appropriately selected according to the application. For example, when paying more attention to the tightening of the seams and holes, the higher the weight ratio of the high shrinkage yarn is, the better. When attaching importance to high seamability, it is preferable to use a larger weight ratio of woolen sliver. In general, the weight ratio of (high shrinkage sliver: woolen sliver) is preferably 30: 70 ~ 70: 30 (more preferably 35: 65 ~ 65: 35). In addition, if the stitching thread with high shrinkage of the present invention is within the range not to be damaged for the purpose of the present invention, it may contain other yarns such as a plurality of long fibers with low shrinkage. The highly shrinkable sewing thread of the present invention may be applied with or without dyeing. When dyeing high shrinkage stitching yarns, when the aforementioned high shrinkage yarns and wool yarns are used to form the stitches, the fiber type or the weight ratio of the high shrinkage yarns and wool yarns is appropriately selected. Wait until the maximum thermal shrinkage stress of the sewing thread is within the foregoing range. On the other hand, when the high shrinkage sewing thread is pre-dyed, a high shrinkage sliver with a thermal shrinkage of more than 5% at a dry heat of 1000 ° C and a woolen sliver with a hair ball on the surface of the sliver can be obtained. After the stitches are dyed, the stitches with shrinkage caused by the dyeing process are stretched at room temperature to obtain the highly shrinkable stitches of the present invention. At this time, the elongation may be appropriately selected so that the maximum thermal stress of the sewn thread after stretching falls within the aforementioned range. For example, when it is desired to increase the heat shrinkage stress, it is desirable to increase the elongation. However, when the elongation exceeds the shrinkage at the time of dyeing, there is a concern that sliver damage may occur. For this reason -12- (8) (8) 200304511, it is usually appropriate that the stretch ratio is in the range of 5 to 50%. In addition, the above-mentioned normal temperature refers to a temperature of 0 to 40 ° C without special heating and cooling. The heating at the time of dyeing shrinks the high-shrink sliver and stabilizes the fiber structure. Although the heat shrinkage stress can be extremely small, stretching at room temperature causes the fiber structure to become unstable and the shrinkage stress to reappear. As for the above-mentioned dyeing method, a skein yarn that can shrink sufficiently is a suitable example. The high-shrinkage sewing thread of the present invention is composed of a high-shrink yarn and a wool yarn, as described above, and has a specific heat-shrinking stress. Therefore, the sewing thread with high shrinkage of the present invention is used for pre-sewing. If heat treatment is performed on the sewing hole portion with an iron or the like, the shrinkage of the sewing thread can be stronger than that of the sewing hole. In addition, due to the "hook effect" of the hair ball contained in the highly shrinkable stitching thread of the present invention, the slip between the stitching thread and the base fabric can be reduced, and the slit hole system tightened by shrinkage can be prevented It becomes loose due to staggering, and the stronger slit tightening system can be maintained for a long time. At the same time, the related wool ball with wool yarn can protect the sewing thread from the heat or abrasion during sewing, so it can also give superior seamability. [Embodiment] Next, examples and comparative examples of the present invention will be described in detail, but the present invention is not limited thereto. The measurement items in the examples were measured by the following methods. < Dry heat shrinkage rate> According to Π S L 1 0 1 3, the heat shrinkage rate (%) of dry heat 1,000 t was measured. -13- 200304511 〇) < Tensile strength > Determine tensile strength (cN / dt ex) in accordance with Π SL 1 01 3 〇 < Slot hole tightness > After sewing three pieces of serge using sewing thread Using a steam iron at 150 ° C and applying steam treatment to the seam hole for 丨 minutes, the seam yarn (sewing thread) is unlocked, and the shrinkage rate (%) of the seam yarn is used as the seam tightness Substitute features. < Durability of seam tightening > After sewing six pieces of serge using a sewing thread, a steam iron of 150 ° C was used and steam treatment was performed on the seam portion for 1 minute. After washing the relevant sewing products 5 times, it is visually judged whether the tightness of the seam hole is good. The evaluation is based on three stages of "very superior", "normal" and "inferior" (η number = 15). <Sewability> Using this sewing machine, at a speed of 3,000 spm, with needle # 1 4, sewing two pieces of serge cloth in one minute and the sewing thread is not cut is "good", and the cut is "bad". Example 1 An unstretched yarn obtained by pre-spinning a copolymerized polyethylene terephthalate whose isophthalic acid content is based on the total acid content and copolymerized with an inherent viscosity of 0.64 at 10 mol%. A high shrinkage sliver of 1000 dtex / 36fil (heat shrinkage rate of 35% at 100 ° C on dry heat) was heated and stretched and twisted under S1200T / m. On the other hand, a woven sliver is a textile yarn made of a known polyethylene terephthalate and a polyester staple fiber having a count of 64 /-obtained by a conventional method. The inside of this textile yarn is ST1200T / m textile -14-(10) 200304511 twisted (down fired), each length of 1 cm has a length of 0.5 mm or more. Next, one of the aforementioned high-shrinkage slivers 2 and one sliver that were subjected to the following twist were twisted together at Z 1 000 T / m, and then dyed at 130 ° C with a tin bell hank, and then 20% pulled at room temperature. Drawing process, 3% by weight of oil for sewing thread and obtaining the high shrinkage of the present invention. The high shrinkage sliver is taken out from the high shrinkage sewing thread, and the thermal shrinkage at 100 ° C is 15%. . The high-shrinkage vehicle has a maximum heat shrinkage stress of 1000 ° C, and the maximum heat shrinkage stress | / dt ex. The tensile strength of the highly shrinkable sewing thread is 焉 dtex. And the maximum thermal shrinkage stress is measured by using a Zhongfang Engineering (strand) stress tester. When the thermal shrinkage-temperature curve is read and evaluated, the shrinkage, shrinkage, durability, and seamability of the highly shrinkable stitching thread are obtained. , 12% tightness of the seam, "excellent" seam durability, and "good" seamability. Example 2 The terephthalic acid component is a high shrinkage dry heat of 100 dtex / 36il obtained by preheating and stretching a copolymerized polyterephthalate with an intrinsic viscosity of 0.64 based on the total acid content and a co-polymerization ratio of 0.64%. (The thermal shrinkage rate at 100 ° C is 35%.) S120 ° /: 〇 On the other hand, a polyester with a branch number of 53 /-obtained by a commonly used method from a known polyethylene terephthalate is used. 50 short hairballs and 30 points of hairy rows were added to the stitches. Scheduled to dry and hot sutures in the heat produced at% 0.3 cN ^ 3 cN /, the tightness of the slits and the tightness of the holes are reduced by 10 mol of formic acid ethylene gauze (made by twisting esters under m to form a textile -15- (11) (11) 200304511 Yarn is used as a woolen sliver. The knitting twist (lower twist) of S 1 0 0 0 Τ / m is applied in the textile yarn, and the length of the wool ball is more than 0.5 mm per 1 cm. 40 Then, two of the aforementioned high-shrinkage slivers and one wooly sliver were twisted at a Z 1 000T / m and then twisted at 13 ° C for 30 minutes. 20% stretching processing at room temperature, and then adding 3% by weight of oil for the stitching thread to obtain the highly shrinkable stitching thread of the present invention. Take out the high shrinkage stitching thread with high shrinkage. The sliver, measured at a thermal shrinkage of 100 ° C, was 14%. The highly shrinkable sewing thread became the largest thermal shrinkage stress at 100 ° C, and the maximum thermal shrinkage stress was 0.25 cN / dt. ex. The tensile strength of this highly shrinkable stitching thread is 2.8 cN / dt ex, and the maximum heat shrinkage stress is calculated using a thermal stress tester manufactured by Zhongfang Engineering Co., Ltd. , Read from the thermal stress-temperature curve. Assess the tightness of the seam hole, the durability of the tightness of the seam, and the seam tightness of 10%, and the tightness of the seam of the seam. Durability is "excellent" and seamability is "good." Comparative Example 1 Except that the woolen sliver of Example 1 was not used, and only three high-shrinkage slivers were used, the same method as in Example 1 was used to obtain sewing threads. When measuring the thermal shrinkage of this sewing thread at 100 ° C dry heat, it is 20%. The sewing thread is at 10 ° C, the thermal shrinkage stress becomes the largest, and the maximum thermal shrinkage stress is 0.3 cN / dt ex. The tensile strength of this highly shrinkable sewing thread is 3.0 cN / dtex. -16- 200304511 (12) Evaluation of the tightness and shrinkage of the seam with high shrinkage of the sewing thread In terms of durability and seamability, the shrinkage of the seam hole is 16%, and the durability of the seam shrinkage is "poor" and the seamability is "poor". Industrial Applicability The highly shrinkable sewing thread of the present invention, Not only has strong slot and hole shrinkage, but also has excellent durability with excellent hole and hole shrinkage. Therefore, the invention has a high shrinkage vehicle Line, slit holes are required based excellent durability and strong tightening of the car with a suture button, as a more appropriate use of waterproof, windproof article by sewing lines.