1318253 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一 雙組份中空複合纖維。 【先前技術】 種複合纖維，且特別是有 關於一種 巾製的防寒衣及太空被漸漸地在市場 由於令空纖維具有比重小且保暖性能佳的特 點，因此深焚廣大消費者的喜愛。 ， 一般保暖性能好的天然纖社都具有中空結構 疋木棉’中空率兩彡7G %。但—般的人造纖維卻大多是 實心的’ a此保暖性能也就較天賴維差。是故，有許夕 研究團隊都在研究如何製造出具有中空結構的人造纖維？ 舉例來說，曰本專利特開2006-097178就揭示了—種 製造中空人造纖維的方法，&方法需先製作芯鞘型複合纖 維。其中，上述之複合纖維的芯部材料為聚乳酸，約佔整 個複合纖維30〜70 wt% ，而此複合纖維的鞘部材料則為聚 對苯二甲酸丙二醇酯。接著，對複合纖維的芯部進行移除 處理，如此即可形成中空纖維。但是，對芯部進行移除處 理是相當難以控制的，且成本也較高，因而不易推廣。此 外’日本專利特開2006-083499與曰本專利特開平 10-018128所揭示的製造方法都也需要對複合纖維的芯部 進行移除處理。 【發明内容】 1318253 因此本發明-方面就是在提供一種雙組份中空複 維’其在纺出時即具有中空結構，因而無須對芯部進;務 除處理。 夕 依照本發明一實施例，一種雙組份中空複合纖維係由 鞘部及芯部所組成。其中，鞘部係由聚酯系高分子所構成， 且此鞘部具有中空腔。芯部則由聚烯烴系高分子所構成，’ 且此芯部係位於中空腔中，並於中空腔中隔出中空結構。 综以上所述，本實施例之雙組份中空複合纖維於纺出 時即具有中空結構，因此無須再對芯部進行移除處理。此 外，本實施例之雙組份中空複合纖維可利用聚醋系高分子 來製作鞘部，使得複合纖維具有良好的染色性與觸感。 【實施方式】 以下將以圖示及詳細說明清楚說明本發明之精神，如 熟悉此技術之人員在瞭解本發明之實施例後，當可由本發 明所教示之技術，加以改變及修飾，其並不脫離本發明1 精神與範圍。 x 參照第1圖，其繪示依照本發明一實施例之雙組份中 空複合纖維的剖®圖。如第1圖所示，一種雙組份中空複 合纖維係由鞘部110及芯部120所組成。其中，稍部11〇 係由聚酯系高分子所構成，且此鞘部丨丨0具有中空腔丨1 5。 忍部120則由聚稀煙系高分子所構成，且此芯部1係位 於中空腔115中，並於中空腔115中隔出中空結構13〇。 更具體地說，芯部120的剖面形狀可為十字形，以在 中空腔115中隔出四個中空結構130。此乃考量到剖面形狀 6 1318253 為十字形的芯部120 較為硬挺不易塌陷。 可以提供良好的支撐 使得複合纖維 醋、聚對苯料可為料苯4酸乙二 對本-甲酸丙二酯或聚對笨二甲酸丁m 120的材料可為聚丙烯 丁-酉曰而心部 X又夷聚丙烯。應瞭解到，以卜斛叛 之材料僅為例示，勒部與芯心。亦可為其 材料所製成，習知技蓺者告禎a ’ "、x、 田、 π有®視§時需要彈性選擇之。 在此先將中空率」詞定義為中空結構m的剖面 面積，比複合纖維的剖面面積比值。在本發明_實施例中， 上迷之複合纖維的中空率可介於約5 %〜3G %，而在 發明另-實施例中，複合纖維的中空率可介於肖10 %〜 20 %。此外，此複合纖維的中空率亦可介於約ι〇 %〜15 %。應瞭解到，以上所述之「約」係用以修縣何可些微 變化的數量’但這種些微變化並不會改變其本質。舉例來 說，在本發明上述實施例中，複合纖維的中空率可介於約5 %〜30 %，此一描述除了代表複合纖維的中空率確實介於 5 %〜30 %外，只要的確能在複合纖維中形成中空結構， 複合纖維的中空率亦可略低於5 %，或者略高於3〇 參照第2圖，其繪示依照本發明一實施例之紡絲噴嘴 的一種剖面示意圖。在第2圖中，一種用以製造雙組份中 空複合纖維之紡絲噴嘴係由紡嘴片本體210、第—分流道 220、第二分流道230及紡嘴口 240所組成。其中，第—分 流道220及弟一分流道230均貫通纺嘴片本體21 〇。紡嘴口 240則位於紡嘴片本體210下緣，並連接第一分流道22〇 與第二分流道230，使第二分流道230之出口環繞第―分流 1318253 道220之出口。此外，使用者可適當地設計紡嘴口 240的 =狀’以利形成複合纖維的中空結構。於使用此紡絲嗔嘴 時’使用者可將兩種不同的材料分別由第-分流道220與 第二分流道230進料，並進行複合紡絲即可形成如第i圖 所繪示之雙組份中空複合纖維。 以下將詳述本發明之數個非限制實例加說明本發明的 功效： 比較例 以熔融指數為14.5的聚丙烯進行紡絲。其中，聚丙烯 的紡絲溫度為謂°C，延伸倍數為2.4倍，而纺絲捲取速 度則為260〇m/min。如此即可得細度為8〇d，且纖維數為 24根的延伸絲。接著，對此延伸絲進㈣㈣織，再進行 快速罐染，即可獲得最終織物。 實例一 以特性粘度為0.57的改質聚對苯二曱酸乙二酯為鞘 部材料，與流動指數為15的聚丙烯為芯部材料，並使用第 2圖之纺絲喷嘴進行複合紡絲。其中，改質聚對笨二甲酸乙 二醋的紡絲溫度為265 °C，聚丙稀的紡絲溫度為210 t， 而纺絲捲取速度為25G()m/min。如此即可得細度W， 且纖維數為24根的部分延伸絲。此部分延伸絲的中介率為 12 %，纖維斷面如第3圖所示。接著，將此部分延；絲以 延伸溫度為UG t的製程條件延伸⑴倍，並以6〇m/min 的編織速度進行編織，將可獲得輕量織物。㈣，對此織 物進行快速«，即可獲得最終織物。此最終織物較比較 1318253 例之最終織物具有更良好的染色性。 實例二 以特性粘度為0.57的改質聚對苯二甲酸乙二酯為鞘 部材料’與流動指數為14_5的聚㈣為芯部材料，並使用 弟2圖之紡絲喷嘴進行複合纺絲。其中，改質聚對苯二甲 酸乙二自旨的纺絲温度為265 t，聚丙歸的紡絲溫度為2〇5 C，改質聚對苯二甲酸乙二醋與聚丙稀的重量比為⑼專 紡絲捲取速度為26〇〇 m/min，而延伸倍數為倍。如此 P可得肩度為42 d’且纖維數為24根的延伸絲，此延伸絲 的中工率為1G %。接著，將此延伸絲與細度為乃d且纖 純為5〇根的聚對苯：f酸乙二酯中空延伸絲進行複合空 乳變形工’得細度& 135d的輕量空氣變形纱。然後，對此 空氣變形紗進行簡易編織，再進行快速罐染，即可獲得最 織物。此最終織物較比較例之最終織物具有更良好的染 色性。 實例三 A以特性枯度為G.57的改質聚對苯二甲酸乙二醋為鞘 P材料與机動才曰數為14·5的聚丙烯為芯部材料，並使用 第2圖之紡絲喷嘴進行複合紡絲。其中，改質聚對苯二甲 。，乙二酉旨的紡絲溫度為265，聚丙稀的紡絲溫度為2〇5 ，改質聚對苯二甲酸乙二酯與聚丙烯的重量比為55:45, 方、糸捲取速度為2600 m/min，而延伸倍數為2 〇倍。如此 即可得細度為120 d，且纖維數為24根的延伸絲，此延伸 9 1318253 絲的中空率為15 %。接著，將此延伸絲與細度為75 u 纖維數為諫的聚對m乙二g旨中空延伸絲進行複合 空氣變形工’得細度為22〇d的輕量空氣變形紗。缺後，對 此空氣變料騎簡m再進行快速罐染，即可獲得 最終織物。此最終織物較比較例之最終織物具有更良好的 染色性。 實例四 以特性粘度為0.57的改質聚對苯二甲酸乙二酯 部材料，與流動指數為14_5的聚丙烯為芯部材料，並使用 第2圖之紡絲喷嘴進行複合紡絲。其中，改質聚對苯二甲 酸乙二醋的紡絲溫度A 265 t，聚丙稀的纺絲溫度為2〇5 c，改質聚對苯二甲酸乙二酯與聚丙烯的重量比為55:， 紡絲捲取速度為2600 m/min，而延伸倍數為2 4倍。如此 即可得細度為122 d，且纖維數為24根的延伸絲，此延伸 :的中空率為13 %。接著’將此延伸絲進行假撚加工， 得細度為115 d的輕量假撚加工紗。然冑，對此假撚加工紗 f行簡易編織，再進行快速罐染，即可獲得最終織物。此 最終織物較比較例之最終織物具有更良好的染色性。 雖然本發明已以實施例揭露如上，然其並非用以限定 本發明任何熟習此技藝者，在不脫離本發明之精神和範 圍内，當可作各種之更動與潤飾，因此本發明之保護範圍 當視後附之申請專利範圍所界定者為準。 1318253 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點邀银> 能更明顯易懂，所W4圇士七_ /、汽化例 穷丨董所附圖式之詳細說明如下：1318253 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a two-component hollow composite fiber. [Prior Art] A kind of composite fiber, and in particular, a cold-proof garment and space for a towel are gradually being marketed. Because the hollow fiber has a small specific gravity and good thermal insulation properties, it is deeply loved by consumers. In general, the natural fiber company with good thermal performance has a hollow structure. The ash rate of 疋木棉 is 2彡7g%. However, most of the man-made fibers are solid. The warmth of this kind of warmth is worse than that of the sky. Therefore, there are Xu Xi research teams are studying how to make man-made fibers with hollow structure? For example, the method of manufacturing a hollow rayon fiber is disclosed in Japanese Patent Laid-Open No. Hei. No. 2006-097178, and the core-sheath type composite fiber is first prepared. Wherein, the core material of the above composite fiber is polylactic acid, which accounts for 30 to 70 wt% of the entire composite fiber, and the sheath material of the composite fiber is polytrimethylene terephthalate. Next, the core of the composite fiber is removed, so that hollow fibers can be formed. However, the removal of the core is quite difficult to control and the cost is high, so it is not easy to promote. Further, the manufacturing methods disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. SUMMARY OF THE INVENTION 1318253 Accordingly, the present invention is directed to providing a two-component hollow composite which has a hollow structure when spun, thereby eliminating the need for a core; According to an embodiment of the present invention, a two-component hollow composite fiber is composed of a sheath portion and a core portion. Among them, the sheath portion is composed of a polyester-based polymer, and the sheath portion has a hollow cavity. The core portion is made of a polyolefin-based polymer, and the core portion is located in the hollow cavity, and a hollow structure is partitioned in the hollow cavity. In summary, the two-component hollow composite fiber of the present embodiment has a hollow structure when spun, so that it is no longer necessary to remove the core. Further, the two-component hollow composite fiber of the present embodiment can be made into a sheath by using a polyester polymer, so that the composite fiber has good dyeability and touch. BRIEF DESCRIPTION OF THE DRAWINGS The spirit of the present invention will be clearly described in the following description and the detailed description of the embodiments of the present invention, which can be modified and modified by the teachings of the present invention, Without departing from the spirit and scope of the present invention. x Referring to Figure 1, there is shown a cross-sectional view of a two-component hollow composite fiber in accordance with one embodiment of the present invention. As shown in Fig. 1, a two-component hollow composite fiber is composed of a sheath portion 110 and a core portion 120. Among them, the slightly 11 〇 is composed of a polyester-based polymer, and the sheath portion 具有0 has a hollow cavity 丨15. The forbearing portion 120 is composed of a poly-smoke-type polymer, and the core portion 1 is located in the hollow cavity 115, and the hollow structure 13 is partitioned in the hollow cavity 115. More specifically, the cross-sectional shape of the core 120 may be a cross shape to partition the four hollow structures 130 in the hollow cavity 115. This is a cross-sectional shape. 6 1318253 The cross-shaped core 120 is relatively stiff and does not collapse. Can provide good support so that the composite fiber vinegar, polyparaphenylene material can be benzoic acid ethanedialdehyde or bismuth carboxylic acid propylene diacrylate or poly(p-phenylene dicarboxylate) m 120 material can be polypropylene butyl-rhodium and heart X is also made of polypropylene. It should be understood that the materials used in the rebellion are only examples, Le and core. It can also be made of its materials, and the skilled artisan warns that a' ", x, Tian, π have a flexible choice. Here, the term "hollow rate" is defined as the cross-sectional area of the hollow structure m, which is the ratio of the cross-sectional area of the composite fiber. In the present invention, the hollow fiber of the above composite fiber may have a hollow ratio of about 5% to 3 G%, and in the other embodiment, the hollow fiber of the composite fiber may be between 10% and 20%. In addition, the hollow fiber of the composite fiber may also be between about ι 〇 and 15%. It should be understood that the above-mentioned "about" is used to repair the number of minor changes in the county', but such slight changes do not change its essence. For example, in the above embodiment of the present invention, the hollow fiber ratio of the composite fiber may be between about 5% and 30%, and the description is that the hollow fiber ratio of the composite fiber is indeed between 5% and 30%, as long as it is true. A hollow structure is formed in the composite fiber, and the hollow fiber ratio of the composite fiber may be slightly less than 5%, or slightly higher than 3 〇. Referring to FIG. 2, a schematic cross-sectional view of the spinning nozzle according to an embodiment of the present invention is shown. In Fig. 2, a spinning nozzle for producing a two-component hollow composite fiber is composed of a sprue sheet body 210, a first branching passage 220, a second branching passage 230, and a spout opening 240. The first branch passage 220 and the second branch passage 230 pass through the nozzle piece body 21 〇. The spout mouth 240 is located at the lower edge of the sprue sheet body 210 and is connected to the first splitter passage 22 and the second splitter passage 230 such that the outlet of the second splitter passage 230 surrounds the outlet of the first-divided 1318253 passage 220. Further, the user can appropriately design the = shape of the spout mouth 240 to form a hollow structure of the composite fiber. When using the spinning nozzle, the user can feed two different materials from the first-split channel 220 and the second branching channel 230, respectively, and perform composite spinning to form the image as shown in FIG. Two component hollow composite fiber. Several non-limiting examples of the invention are described in detail below to illustrate the efficacy of the invention: Comparative Example Spinning was carried out with polypropylene having a melt index of 14.5. Among them, the spinning temperature of polypropylene is about °C, the stretching ratio is 2.4 times, and the spinning take-up speed is 260 〇m/min. Thus, an elongated wire having a fineness of 8 〇d and a number of fibers of 24 can be obtained. Next, the extension wire is fed into (4) (4) and then quickly dyed to obtain the final fabric. Example 1 modified polyethylene terephthalate having an intrinsic viscosity of 0.57 as a sheath material, and polypropylene having a flow index of 15 as a core material, and composite spinning using the spinning nozzle of FIG. . Among them, the spinning temperature of the modified poly(p-diacetate) was 265 ° C, the spinning temperature of polypropylene was 210 t, and the spinning take-up speed was 25 G () m / min. Thus, a fineness W and a partially stretched yarn having 24 fibers can be obtained. The median rate of this part of the extended filament is 12%, and the fiber cross section is shown in Fig. 3. Next, the portion was stretched; the wire was stretched (1) times in a process condition with an extension temperature of UG t, and woven at a weaving speed of 6 〇 m/min, and a lightweight fabric was obtained. (d), the fabric is quickly «, the final fabric can be obtained. This final fabric has better dyeability than the final fabric of 1318253. Example 2 A modified polyethylene terephthalate having an intrinsic viscosity of 0.57 was used as a sheath material and a poly(iv) having a flow index of 14 to 5 was used as a core material, and a spun yarn was used for the composite spinning. Among them, the modified polyethylene terephthalate has a spinning temperature of 265 t, the polypropylene has a spinning temperature of 2〇5 C, and the weight ratio of the modified polyethylene terephthalate to polypropylene is (9) The spinning speed of the special spinning yarn is 26〇〇m/min, and the stretching ratio is doubled. Thus, P can obtain a stretched wire having a shoulder length of 42 d' and a fiber number of 24, and the working ratio of the stretched yarn is 1 G%. Then, the stretched wire and the poly(p-phenylene)-f-ethylene glycol ester-extending filament having a fineness of d and a purity of 5 were combined to form a fine emulsion & 135d light air deformation yarn. Then, the air-textured yarn is simply woven, and then quickly dyed to obtain the most fabric. This final fabric had better dyeability than the final fabric of the comparative example. Example 3A uses modified polyethylene terephthalate with a characteristic dryness of G.57 as the sheath P material and polypropylene with a motorized number of 14.5 as the core material, and uses the spinning of Fig. 2 The wire nozzle is composite spun. Among them, modified polyparaphenylene. The spinning temperature of 乙二酉 is 265, the spinning temperature of polypropylene is 2〇5, the weight ratio of modified polyethylene terephthalate to polypropylene is 55:45, the winding speed of square and 糸It is 2600 m/min and the extension is 2 times. Thus, an elongation yarn having a fineness of 120 d and a number of fibers of 24 was obtained, and the elongation of the yarn of this 13 1318253 filament was 15%. Next, this stretched yarn was combined with a fine-grained air-stretched yarn having a fineness of 75 u and a fiber length of 聚, and a hollow air-stretched yarn having a fineness of 22 〇d. After the lack, the airborne material can be quickly dyed to obtain the final fabric. This final fabric had better dyeability than the final fabric of the comparative example. Example 4 A modified polyethylene terephthalate material having an intrinsic viscosity of 0.57 and a polypropylene having a flow index of 14_5 were used as the core material, and the spun yarn was spun using the spinning nozzle of Fig. 2. Among them, the modified polyethylene terephthalate has a spinning temperature of A 265 t, the polypropylene has a spinning temperature of 2〇5 c, and the weight ratio of the modified polyethylene terephthalate to polypropylene is 55. :, the spinning take-up speed is 2600 m/min, and the stretching ratio is 24 times. Thus, a stretched wire having a fineness of 122 d and a number of fibers of 24 was obtained, and the elongation of the stretch was 13%. Then, the stretched yarn was subjected to false twist processing to obtain a lightweight false twisted textured yarn having a fineness of 115 d. Then, the final fabric is obtained by simply weaving the false-twisted yarns and then performing rapid canning. This final fabric had better dyeability than the final fabric of the comparative example. While the present invention has been disclosed in the above embodiments, it is not intended to limit the scope of the present invention, and the scope of the present invention can be varied and modified without departing from the spirit and scope of the invention. This is subject to the definition of the scope of the patent application. 1318253 [Simplified description of the drawings] In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, the detailed description of the W4 gentleman seven _ /, vaporization example poor as follows:
第1圖係 '纟會示依照本發明 剖面示意圖。 一實施例之複合纖維的Figure 1 is a schematic cross-sectional view showing the present invention in accordance with the present invention. Composite fiber of an embodiment
第2圖係續'示依照本發明一 剖面示意圖。 第3圖係依照本發明實例一 實施例之紡絲喻嘴的— 之部分延伸絲的纖維斷 種 面Figure 2 is a schematic cross-sectional view showing the invention in accordance with the present invention. Figure 3 is a diagram showing the fiber breakage of a partially stretched yarn of a spun yarn according to an embodiment of the present invention.
110 :鞘部 120 :芯部 210 :紡嘴片本增 230:第二分、；Μ 115 :中空腔 130 :中空結構 220 :第一分流道 24〇 :紡嘴口 11110: sheath 120: core 210: spun nozzle 230: second, Μ 115: hollow cavity 130: hollow structure 220: first shunt 24 〇: spout 11