WO2019241914A1 - 一种用于制备超仿棉涤锦空喷变形混纤丝的空喷变形组合装置 - Google Patents
一种用于制备超仿棉涤锦空喷变形混纤丝的空喷变形组合装置 Download PDFInfo
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- WO2019241914A1 WO2019241914A1 PCT/CN2018/091892 CN2018091892W WO2019241914A1 WO 2019241914 A1 WO2019241914 A1 WO 2019241914A1 CN 2018091892 W CN2018091892 W CN 2018091892W WO 2019241914 A1 WO2019241914 A1 WO 2019241914A1
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- air
- jet
- nozzle
- nozzle core
- nylon
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
Definitions
- Air-jet deformation combination device for preparing super-cotton polyester-nylon air-jet deformed mixed fiber filament
- the present invention relates to a device for preparing a functionally differentiated new fiber, and in particular, to an air-jet deforming combined device for producing ultra-cotton polyester-nylon air-jet deforming mixed fiber filaments using air-jet deforming technology.
- Ultra-cotton polyester-nylon air-jet deformed mixed fiber yarn is a new type of functional differentiated fiber material. It not only emphasizes the pursuit of cotton fabrics in terms of fiber surface morphology and fabric style, but also the performance of fabric products. And the function must achieve super imitation cotton effect. In addition, the super imitation cotton technology pays more attention to the integration and play of multiple differentiated and functional technologies, and emphasizes the integration of polymerization, spinning, weaving, and dyeing and finishing technologies. Since 2000, Europe, the United States, and Japan have developed so-called "polyester-like cotton pop fabrics" that can improve the appearance of fibers and fabrics, such as the CoolDry polyester fabrics successfully developed by Toyobo, and I-COOL developed by Tokoku Trading Co., Ltd.
- the series of fibers get a new stage of looking good, beautiful appearance, feeling good, as well as high simulation of multi-functional combination with high fine fiber as the main body, and even new simulation of new synthetic fiber fabric products.
- ultra-imitation cotton fibers and products have become the textile raw material technology projects that the China Textile Industry Federation will focus on and promote.
- the goal is to transform the chemical fiber with the largest output and the widest use through physical and chemical changes. It is transformed into a textile raw material that is comfortable to wear and whose performance is close to or even surpasses that of natural cotton fiber, thereby fundamentally improving the wearing performance of chemical fiber raw materials, improving the high performance, functionalization and high added value of textiles, and solving the problem of insufficient cotton supply.
- the goal is to achieve a breakthrough in key common technologies for cotton-like fiber products, and eventually replace natural cotton fibers with ultra-cotton-polyester blended filaments.
- the ultra-cotton polyester processing technology adopted at home and abroad is mainly through the use of a single differential technology or a single functional physical modification such as ultra-fine denier, hollow micropores, profiled cross sections, mixed fiber composites and chemical modification.
- a single differential technology or a single functional physical modification such as ultra-fine denier, hollow micropores, profiled cross sections, mixed fiber composites and chemical modification.
- two methods of grafting copolymerization of hydrophilic groups and coating treatment of hydrophilic compounds can be implemented to give the fibers some cotton-like functions.
- this processing method has many disadvantages such as complicated processing steps, high production cost, poor quality, and single function.
- the product made by the preparation method has poor moisture absorption, breathability, and moisture retention, and the surface of the fabric made of it exhibits uneven color spots and Whitening phenomenon, product quality is unstable, so only from a single It is difficult to solve the fundamental problem by changing the process conditions, and it is urgent to provide new processing equipment, adopt new preparation methods and process technologies, and provide high-performance and multi-functional new products.
- the present invention is directed to the shortcomings of the prior art, and provides an air-jet deforming combined device for preparing ultra-cotton polyester-nylon air-jet deforming mixed fiber filaments.
- the prepared product has the appearance and fluffy similar to natural cotton fibers. Characteristics and good resilience, moisture absorption and moisture permeability characteristics.
- the technical solution adopted in the present invention is to provide an air-jet deforming combined device for preparing ultra-cotton polyester-nylon air-jet deforming mixed filaments, which includes a nozzle core and a nozzle housing; There are round holes in the inside, the outer wall of the nozzle core is cylindrical, the nozzle core is fixed at the center of the inner circular hole of the nozzle housing, and the annular gap between the outer wall of the nozzle core and the inner circular hole wall of the nozzle housing forms the annular cavity of the air spray nozzle
- the nozzle housing is provided with a compressed air inlet; a nozzle core hole is opened in the middle of the nozzle core; the lower end of the nozzle core hole is convergent; the middle section of the nozzle core hole is cylindrical, which forms a turbulent flow of the air spray nozzle
- the upper end of the nozzle core hole is a trumpet-shaped opening, and the wall of the nozzle core is provided with 3 to 6 air jet air jet micro holes
- a preferred solution of the present invention is: the distance between the annular gap between the outer wall of the nozzle core and the inner wall of the circular hole of the nozzle housing is 3.5mm ⁇ 4.0mm; the air inlet of the air jet air jet micro hole and the compressed air The air inlets are arranged on the same horizontal plane.
- the nozzle housing is made of a copper alloy material; the nozzle core is made of a composite ceramic material.
- the polyester-nylon air-jet deformation combination device is a separable nozzle housing and a nozzle core structure.
- the air-jet deformation nozzle housing is made of copper alloy, and the nozzle core is made of a hard and wear-resistant composite ceramic material.
- the polyester air jet deformation nozzle structure is provided with a special air jet vortex cavity and an annular gap spacing structure, which is used to adjust and control the air jet air vortex flow and its flow velocity during the air jet deformation and mixed fiber process, and ensure that the air jet deformation nozzle has a good Air diffusion effect, easy to form turbulence and air jet deformation mixed fiber effect, and minimize the use of compressed air.
- the supersonic multi-dimensional vortex air-jet turbulent air flow formed in the turbulence chamber of the air-shaped nozzle performs air injection, blow, and separation, and moves and rotates fiercely in the air-jet turbulence, and then together with the vortex air-jet air flow Continuously leaking from the turbulent turbulent area, and forming irregular intertwined and intertwined mixed fibers at the instant of leakage, and an ultra-cotton polyester-air-jet air-jet deformed blend with a stable bulky loop shape effect Filaments.
- the production of ultra-cotton polyester-nylon air-jet deforming mixed fiber silk products has similar appearance, fluffy and good resilience, moisture absorption, moisture permeability and air permeability similar to natural cotton fibers. Good and so on.
- the air-jet deformation combined device provided by the present invention has a simple structure, convenient installation, and low cost, and is used to produce ultra-cotton polyester-nylon air-jet deformed mixed fiber filaments.
- the modified blended polyester filaments and nylon 6 filaments can be fed into the two-way three-dimensional vortex air-jet deformation combination device at different rates and overfeeds on the same machine at the same time to produce a fluffy, similar appearance and natural fluffy cotton fiber.
- Super imitation cotton polyester nylon air-jet deformed mixed fiber yarn with good performance and good resilience and good moisture absorption, moisture permeability, and air permeability. It has short process flow, high production efficiency, low energy consumption, low cost, good product quality, and obvious cost-effective advantages. . Brief description of the drawings
- FIG. 1 is a schematic cross-sectional structure diagram of an air jet deformation combined device according to an embodiment of the present invention
- FIG. 2 is a process flow chart of preparing a super-cotton polyester-nylon air-jet deformed mixed fiber using an air-jet deformation combination device provided by an embodiment of the present invention
- FIG. 3 is an electron microscope photograph of the surface morphology of the ultra-cotton polyester-nylon blended fiber prepared by using the air-jet deformation combination device provided by the embodiment of the present invention.
- FIG. 1 it is a schematic cross-sectional structure diagram of an air jet deformation combined device provided in this embodiment; it includes a nozzle core 1 and a nozzle housing 2, the nozzle housing is made of a copper alloy, and the nozzle core is made of a composite ceramic material .
- the nozzle core is fixed at the center of the inner circular hole of the nozzle housing, and the annular gap between the outer wall of the nozzle core and the inner circular hole wall of the nozzle housing forms an annular cavity 6 of the air jet nozzle;
- the nozzle housing is provided with compressed air intake Mouth 3;
- Nozzle core hole is opened in the middle of the nozzle core, the lower end of the nozzle core hole is convergent, and the middle section of the nozzle core hole is cylindrical, forming an air jet nozzle turbulence chamber 5, and the upper end of the nozzle core hole is A trumpet-shaped opening, the wall of the nozzle core is provided with four air jet air jet micro-holes 4 inclined to the horizontal plane and converging in an “eight” shape;
- the air jet nozzle annular cavity 6 passes through the air jet air jet micro holes 4 and the air jet
- the nozzle turbulence chamber 5 is penetrated; the air inlet of the air jet air jet micro hole 4 and the compressed air inlet 3 are arranged on the same horizontal plane
- the compressed air enters the air-jet nozzle annular cavity 6 between the outer wall of the nozzle core and the inner wall of the circular hole inside the nozzle housing through the compressed-air inlet 3 to form air-jet flow.
- the holes 4 enter the interior of the nozzle core 1 to form an air-jet nozzle turbulence chamber 5.
- the distance between the annular gap between the outer wall of the nozzle core and the wall of the circular hole inside the nozzle housing is 3.8 mm.
- the air-jet deformation combination device provided in this embodiment is used to produce ultra-cotton polyester-nylon air-jet textured mixed fiber yarns with a specification of 167 dtex / 96f. For the process flow, see FIG. 2.
- the modified blended polyester filaments and nylon 6 filaments are simultaneously fed into the air-jet deformation combination device provided by this embodiment at different rates and super-feeding modes, and the multi-directional three-dimensional vortex air jet is used to make
- the tow entering the turbulence chamber of the air jet is blown by the formed supersonic three-dimensional vortex air-jet turbulent air flow, which is separated, and moves and rotates fiercely in the three-dimensional vortex air-jet turbulence, and then together with the vortex jet air flow Continuously leaking from the turbulent turbulence area, forming irregularly entangled entangled mixed fibers to produce ultra-cotton polyester-nylon air-jet deformed mixed fibers.
- the main process parameters are:
- Polyester / Nylon air-jet deformed mixed filament yarn specifications Modified blended polyester filament specifications are 75dtex / 48f, nylon 6 filament specifications are 73dtex / 48f;
- the main process of polyester / nylon air-jet deformed mixed fiber the first over-feed rate is 13%, the second over-feed rate is 24%, the nozzle air-jet pressure is 9.20 bar, the third over-feed rate is -8.3%, processing The speed is 430m / min.
- the specifications of the ultra-cotton polyester-nylon air-jet deformed mixed fiber prepared according to the above process conditions are 160dtex / 96f, and the fracture strength is strong.
- the degree is 2.46 cN / dtex, the elongation at break is 19.8%, and the boiling water shrinkage is 10.3%.
- FIG. 3 it is an electron micrograph of the surface morphology of the ultra-cotton polyester-nylon mixed fiber yarn prepared in this embodiment; as can be seen from FIG. 3, the formed mixed fiber yarn is randomly wound and entangled.
- the super-cotton polyester-nylon air-jet deformed mixed fiber has a stable bulky loop shape effect.
- Example 2 Using the air-jet deforming combination device provided in Example 1, a method for producing a super-imitation cotton-polyester air-jet deformed mixed fiber with a size of 180 dtex / 96f is prepared. The process flow is shown in FIG. 2.
- the modified blended polyester filaments and nylon 6 filaments were simultaneously fed into the two-dimensional three-dimensional vortex air-jet deformation combination device at different rates and super-feeding modes, and the air-jet deformation combination device was used to enter the air-jet.
- the tow in the nozzle turbulence chamber was blown by the formed supersonic multi-dimensional vortex air-jet turbulent air flow, separated, and fiercely moved and rotated in the three-dimensional vortex air-jet turbulence, and then continuously from the vortex jet air flow from The vortex turbulence area leaks out, forming irregularly entangled entangled mixed fibers to produce ultra-cotton polyester-nylon air-jet deformed mixed fibers.
- the main process parameters are: Polyester / Nylon air-jet deformed mixed filament yarn specifications: Modified blended polyester filament specifications are 83dtex / 48f, and nylon 6 filament specifications are 82dtex / 48f;
- the main process of polyester-nylon air-jet deformed mixed fibers The first overfeed rate is 15%, the second overfeed rate is 26%, the annular gap spacing of the air jet nozzle is 3.8mm, the nozzle air spray pressure is 9.50 bar, the third overfeed rate is -9.5%, and the processing speed is 480m / min;
- the specifications of super imitation cotton and nylon brocade air-jet deformed mixed filaments are 180dtex / 96f, the breaking strength is 2.35cN / dtex, the breaking elongation is 20.4%, and the boiling water shrinkage is 10.5%.
- This embodiment provides a method for producing an ultra-cotton polyester-nylon air-jet deformed mixed fiber yarn with a specification of 180 dtex / 120 f.
- the process flow is shown in FIG. 2 and the production process conditions are as follows:
- the modified blended polyester filaments and nylon 6 filaments were simultaneously fed into the air-jet deformation combination device provided in Example 1 at different rates and super-fed at the same time, and vortex air sprayed into the air-jet.
- the tow in the nozzle turbulence chamber was blown by the formed supersonic multi-dimensional vortex air-jet turbulent air flow, separated, and fiercely moved and rotated in the three-dimensional vortex air-jet turbulence, and then continuously from the vortex jet air flow from The vortex turbulence area leaks out, forming irregularly entangled entangled mixed fibers to produce ultra-cotton polyester-nylon air-jet deformed mixed fibers.
- the main process parameters are: Polyester / Nylon air-jet deformed mixed filament yarn specifications: Modified blended polyester filament specifications are 83dt ex / 72f, nylon 6 filament specifications are 82dtex / 48f; the main process of polyester / nylon air jet deformed mixed fiber: the first overfeed rate is 14%, the second overfeed rate is 25%, and the annular gap distance of the air spray nozzle is 3.8 mm, nozzle air spray pressure is 9.0 bar, the third overfeed rate is -9.1%, and the processing speed is 460m / min ; the specifications of super imitation cotton polyester nylon airjet deformed mixed fiber are 180dtex / 120f, and the breaking strength is 2.53cN / dtex, the elongation at break is 18.5%, and the boiling water shrinkage is 9.7%.
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Abstract
本发明公开了一种用于制备超仿棉涤锦空喷变形混纤丝的空喷变形组合装置。包括喷嘴芯和喷嘴外壳；喷嘴外壳的内部开有圆孔，喷嘴芯的外壁为圆柱状，喷嘴芯与喷嘴外壳之间的环形缝隙形成空喷喷嘴环形腔；喷嘴外壳上开有压缩空气进气口；喷嘴芯的中间开有嘴芯孔，嘴芯孔的下端呈"八"字收敛状，嘴芯孔的中段呈圆柱状，形成空喷喷嘴紊流室，嘴芯孔的上端呈喇叭形开口，喷嘴芯的壁上开有空喷气流喷气微孔。该组合装置使进入空喷喷嘴紊流室中的丝束被形成的超音速多维涡流空喷紊流气流吹击，发生分离，并在多维涡流空喷紊流中激烈地移动和回转，与涡流喷射气流一起连续地从涡流紊流区泄出，形成无规则缠绕交络混纤，制得超仿棉涤锦空喷变形混纤丝。
Description
一种用于制备超仿棉涤锦空喷变形混纤丝的空喷变形组 合装置
技术领域
[0001] 本发明涉及制备功能差别化新纤维的装置， 特别涉及一种采用空喷变形技术生 产超仿棉涤锦空喷变形混纤丝的空喷变形组合装置。
背景技术
[0002] 超仿棉涤锦空喷变形混纤丝是一种新型的功能型差别化纤维材料， 它不仅强调 在纤维表面形态和面料风格上追求接近棉织物， 更重要的是面料制品在性能及 功能上要达到超仿棉效果。 此外， 超仿棉技术更加重视多种差别化、 功能性技 术的整合发挥， 强调聚合、 纺丝、 织造、 染整技术的相互融合。 从 2000年起， 欧美和日本开发了能够改善纤维和织物外观的所谓“聚酯仿棉流行面料”产品， 如 曰本东洋纺开发成功的 CoolDry涤纶面料， 东国贸易株式会社研发的 I-COOL系 列纤维， 得到看上去好 (looking good) , 外观优美， 感觉好 (feeling good) , 以及以 高细纤维为主体， 多功能组合的高仿真乃至高仿真新合纤面料制品研发的新阶 段。 就国内而言， 超仿棉纤维及产品已成为中国纺织工业联合会要重点攻关和 推广的纺织原料科技项目， 其目标正是把产量最大、 用途最广的化学纤维， 通 过物理和化学的改性， 改造成穿着舒适、 性能接近甚至超过天然棉纤维的纺织 原料， 进而从根本上改善化纤原料的服用性能， 提高纺织品的高性能、 功能化 、 高附加值， 解决棉花供应不足的问题， 其目标是实现仿棉纤维产品关键共性 技术的突破， 最终用超仿棉涤纶混纤丝替代天然棉纤维。
[0003] 目前， 国内外采用的超仿棉涤纶加工技术主要是通过采用单一差别化技术或单 一功能性的物理改性如超细旦、 中空微孔、 异形截面、 混纤复合和化学改性如 亲水性基团接枝共聚和亲水性化合物涂层处理两种方法得以实施， 赋予纤维某 种仿棉的功能。 然而， 这种加工方法存在加工工序复杂、 生产成本高、 品质差 及功能单一等诸多缺点， 用该制备方法制成的产品吸湿透气及保湿性差， 其制 成的织物表面呈现不均匀色斑及露白现象， 产品质量不稳定， 因此， 仅从单一
的改变工艺条件已很难解决根本问题， 亟需提供新型的加工装置， 采用新的制 备方法和工艺技术， 提供高性能及多功能的新产品。
发明概述
技术问题
问题的解决方案
技术解决方案
[0004] 本发明针对现有技术存在的不足， 提供一种用于制备超仿棉涤锦空喷变形混纤 丝的空喷变形组合装置， 制备的产品具有与天然棉纤维相似的外观、 蓬松性和 良好的回弹性、 吸湿导湿透气性的特点。
[0005] 为了达到上述发明目的， 本发明采用的技术方案是提供一种用于制备超仿棉涤 锦空喷变形混纤丝的空喷变形组合装置， 它包括喷嘴芯和喷嘴外壳； 喷嘴外壳 的内部开有圆孔， 喷嘴芯的外壁为圆柱状， 喷嘴芯固定于喷嘴外壳的内部圆孔 中心， 喷嘴芯的外壁与喷嘴外壳的内部圆孔壁之间的环形缝隙形成空喷喷嘴环 形腔； 喷嘴外壳上开有压缩空气进气口； 喷嘴芯的中间开有嘴芯孔， 嘴芯孔的 下端呈“八”字收敛状， 嘴芯孔的中段呈圆柱状， 形成空喷喷嘴紊流室， 嘴芯孔的 上端呈喇叭形开口， 喷嘴芯的壁上开有 3〜 6个倾斜于水平面、 呈“八”字收敛状的 空喷气流喷气微孔； 空喷喷嘴环形腔通过空喷气流喷气微孔与空喷喷嘴紊流室 贯通。
[0006] 本发明一个优选的方案是： 喷嘴芯的外壁与喷嘴外壳内部圆孔壁之间的环形缝 隙的间距为 3.5mm〜 4.0mm; 将空喷气流喷气微孔的进气口与压缩空气进气口设 置在同一水平面上。
[0007] 本发明技术方案中， 喷嘴外壳为铜合金材质； 喷嘴芯为复合陶瓷材质。
[0008] 本发明提供的涤锦空喷变形组合装置为可分离的喷嘴外壳和喷嘴芯结构设计设 置， 空喷变形喷嘴外壳为铜合金材质， 喷嘴芯采用硬而耐磨的复合陶瓷材质， 在涤锦空喷变形喷嘴结构内设置特殊的空喷渦流腔及环形隙间距结构， 用于调 节控制空喷变形混纤过程中空喷空气渦流量及其流速， 并确保其空喷变形喷嘴 具有良好的气流扩散效果、 易形成湍流和空喷变形混纤效果以及尽可能减少压 缩空气的使用量。 当改性涤纶长丝和锦纶 6长丝以不同速率超喂方式输入空喷变
形喷嘴紊流室中被形成的超音速多维渦流空喷紊流空气气流进行空气喷射、 吹 击， 发生分离， 并在空喷紊流中激烈地移动和回转， 随后与渦流空喷喷射气流 一起连续地从渦流紊流区泄出， 并在泄出的一瞬间形成不规则的相互交缠、 交 络混纤， 得到稳定膨松状的丝圈形态效果的超仿棉涤锦空喷变形混纤丝。
[0009] 采用本发明提供的空喷变形组合装置， 生产超仿棉涤锦空喷变形混纤丝产品具 有与天然棉纤维相似的外观、 蓬松性和良好的回弹性以及吸湿导湿透气性好等 优点。
发明的有益效果
有益效果
[0010] 与现有技术相比， 本发明的有益效果是： 本发明提供的空喷变形组合装置， 结 构简单， 安装方便， 成本低廉， 用于生产超仿棉涤锦空喷变形混纤丝， 可在同 一台机器上将改性共混涤纶长丝与锦纶 6长丝分别以不同速率超喂方式同时输入 双向三维渦流空喷变形组合装置， 制得具有与天然棉纤维相似的外观、 蓬松性 和良好的回弹性以及吸湿导湿透气性好的超仿棉涤锦空喷变形混纤丝， 其工艺 流程短、 生产效率高、 能耗低、 成本低、 产品质量好以及性价比优势明显。 对附图的简要说明
附图说明
[0011] 图 1是本发明实施例提供的空喷变形组合装置的剖面结构示意图；
[0012] 图 2是利用本发明实施例提供的空喷变形组合装置制备超仿棉涤锦空喷变形混 纤丝的工艺流程图；
[0013] 图 3是利用本发明实施例提供的空喷变形组合装置制备得到的超仿棉涤锦混纤 丝的表面形态电镜照片。
[0014] 图中： 1.喷嘴芯； 2.喷嘴外壳； 3.压缩空气进气口； 4.空喷气流喷气微孔； 5. 空喷喷嘴紊流室； 6.空喷喷嘴环形腔。
发明实施例
本发明的实施方式
[0015] 下面结合附图和实施例对本发明技术方案作进一步的阐述。
[0016] 实施例 1
[0017] 参见附图 1， 它是本实施例提供的一种空喷变形组合装置的剖面结构示意图； 它包括喷嘴芯 1和喷嘴外壳 2, 喷嘴外壳为铜合金材质， 喷嘴芯为复合陶瓷材质 。 其结构为： 喷嘴芯固定于喷嘴外壳的内部圆孔中心， 喷嘴芯的外壁与喷嘴外 壳的内部圆孔壁之间的环形缝隙形成空喷喷嘴环形腔 6; 喷嘴外壳上开有压缩空 气进气口 3 ; 喷嘴芯的中间开有嘴芯孔， 嘴芯孔的下端呈“八”字收敛状， 嘴芯孔 的中段呈圆柱状， 形成空喷喷嘴紊流室 5 , 嘴芯孔的上端呈喇叭形开口， 喷嘴芯 的壁上开有四个倾斜于水平面、 呈“八”字收敛状的空喷气流喷气微孔 4; 空喷喷 嘴环形腔 6通过空喷气流喷气微孔 4与空喷喷嘴紊流室 5贯通； 空喷气流喷气微孔 4的进气口与压缩空气进气口 3设置在同一水平面上。 处于工作状态时， 压缩空 气经压缩空气进气口 3进入喷嘴芯的外壁与喷嘴外壳内部圆孔壁之间的空喷喷嘴 环形腔 6内， 形成空喷气流， 通过四个空喷气流喷气微孔 4进入喷嘴芯 1的内部， 形成空喷喷嘴紊流室 5。 在本实施例中， 设置喷嘴芯的外壁与喷嘴外壳内部圆孔 壁之间的环形缝隙的间距为 3.8mm。
[0018] 采用本实施例提供的空喷变形组合装置生产超仿棉涤锦空喷变形混纤丝， 规格 为 167dtex/96f， 其工艺流程参见附图 2。
[0019] 在同一台机器上将改性共混涤纶长丝与锦纶 6长丝分别以不同速率超喂方式同 时输入本实施例提供的空喷变形组合装置， 经多向三维渦流空气喷射， 使进入 空喷喷嘴紊流室中的丝束被形成的超音速三维渦流空喷紊流气流吹击， 发生分 离， 并在三维渦流空喷紊流中激烈地移动和回转， 随后与渦流喷射气流一起连 续地从渦流紊流区泄出， 形成无规则缠绕交络混纤， 制得超仿棉涤锦空喷变形 混纤丝。
[0020] 主要工艺参数为：
[0021] 涤锦空喷变形混纤丝原丝规格： 改性共混涤纶长丝规格为 75dtex/48f， 锦纶 6长 丝规格为 73dtex/48f;
[0022] 涤锦空喷变形混纤主要工艺： 第一超喂率为 13%， 第二超喂率为 24%， 喷嘴空 喷压力为 9.20 bar, 第三超喂率为 -8.3%， 加工速度为 430m/min。
[0023] 按上述工艺条件制备的超仿棉涤锦空喷变形混纤丝规格为 160dtex/96f, 断裂强
度为 2.46cN/dtex， 断裂伸长率为 19.8%， 沸水收缩率为 10.3%。
[0024] 参见附图 3 , 它是本实施例制备得到的超仿棉涤锦混纤丝的表面形态电镜照片 ; 由图 3可见， 形成的混纤丝为无规则缠绕交络状， 得到的超仿棉涤锦空喷变形 混纤丝具有稳定膨松状的丝圈形态效果。
[0025] 实施例 2
[0026] 采用实施例 1提供的空喷变形组合装置， 制备一种规格为 180dtex/96f生产超仿 棉涤锦空喷变形混纤丝的方法， 其工艺流程参见附图 2。
[0027] 生产工艺条件如下：
[0028] 在同一台机器上将改性共混涤纶长丝与锦纶 6长丝分别以不同速率超喂方式同 时输入双向三维渦流空喷变形组合装置， 经空喷变形组合装置， 使进入空喷喷 嘴紊流室中的丝束被形成的超音速多维渦流空喷紊流气流吹击， 发生分离， 并 在三维渦流空喷紊流中激烈地移动和回转， 随后与渦流喷射气流一起连续地从 渦流紊流区泄出， 形成无规则缠绕交络混纤， 制得超仿棉涤锦空喷变形混纤丝 。 其主要工艺参数为： 涤锦空喷变形混纤丝原丝规格： 改性共混涤纶长丝规格 为 83dtex/48f， 锦纶 6长丝规格为 82dtex/48f; 涤锦空喷变形混纤主要工艺： 第一 超喂率为 15%， 第二超喂率为 26%， 空喷喷嘴环形缝隙间距为 3.8mm， 喷嘴空喷 压力为 9.50 bar, 第三超喂率为 -9.5%， 加工速度为 480m/min; 超仿棉?条锦空喷变 形混纤丝规格为 180dtex/96f， 断裂强度为 2.35cN/dtex， 断裂伸长率为 20.4%， 沸 水收缩率为 10.5%。
[0029] 实施例 3
[0030] 本实施例提供一种规格为 180dtex/120f生产超仿棉涤锦空喷变形混纤丝的方法 ， 其工艺流程参见附图 2, 生产工艺条件如下：
[0031] 在同一台机器上将改性共混涤纶长丝与锦纶 6长丝分别以不同速率超喂方式同 时输入实施例 1提供的空喷变形组合装置， 经渦流空气喷射， 使进入空喷喷嘴紊 流室中的丝束被形成的超音速多维渦流空喷紊流气流吹击， 发生分离， 并在三 维渦流空喷紊流中激烈地移动和回转， 随后与渦流喷射气流一起连续地从渦流 紊流区泄出， 形成无规则缠绕交络混纤， 制得超仿棉涤锦空喷变形混纤丝。 其 主要工艺参数为： 涤锦空喷变形混纤丝原丝规格： 改性共混涤纶长丝规格为 83dt
ex/72f, 锦纶 6长丝规格为 82dtex/48f; 涤锦空喷变形混纤主要工艺： 第一超喂率 为 14%， 第二超喂率为 25%， 空喷喷嘴环形缝隙间距为 3.8mm， 喷嘴空喷压力为 9.0 bar, 第三超喂率为 -9.1%， 加工速度为 460m/min; 超仿棉涤锦空喷变形混纤 丝规格为 180dtex/120f， 断裂强度为 2.53cN/dtex， 断裂伸长率为 18.5%， 沸水收缩 率为 9.7%。
Claims
[权利要求 1] 一种用于制备超仿棉涤锦空喷变形混纤丝的空喷变形组合装置， 其特 征在于： 它包括喷嘴芯 （1） 和喷嘴外壳 （2） ; 喷嘴外壳的内部开有 圆孔， 喷嘴芯的外壁为圆柱状， 喷嘴芯固定于喷嘴外壳的内部圆孔中 心， 喷嘴芯的外壁与喷嘴外壳的内部圆孔壁之间的环形缝隙形成空喷 喷嘴环形腔 （6） ; 喷嘴外壳上开有压缩空气进气口 （3） ; 喷嘴芯的 中间开有嘴芯孔， 嘴芯孔的下端呈“八”字收敛状， 嘴芯孔的中段呈圆 柱状， 形成空喷喷嘴紊流室 （5） ， 嘴芯孔的上端呈喇叭形开口， 喷 嘴芯的壁上开有 3〜 6个倾斜于水平面、 呈“八”字收敛状的空喷气流喷 气微孔 （4） ; 空喷喷嘴环形腔 （6） 通过空喷气流喷气微孔 （4） 与 空喷喷嘴紊流室 （5） 贯通。
[权利要求 2] 根据权利要求 1所述的一种用于制备超仿棉涤锦空喷变形混纤丝的空 喷变形组合装置， 其特征在于： 所述喷嘴芯的外壁与喷嘴外壳内部圆 孔壁之间的环形缝隙的间距为 3.5_〜 4.0mm。
[权利要求 3] 根据权利要求 1所述的一种用于制备超仿棉涤锦空喷变形混纤丝的空 喷变形组合装置， 其特征在于： 所述的空喷气流喷气微孔 （4） 的进 气口与压缩空气进气口 （3） 设置在同一水平面上。
[权利要求 4] 根据权利要求 1所述的一种用于制备超仿棉涤锦空喷变形混纤丝的空 喷变形组合装置， 其特征在于： 所述的喷嘴外壳为铜合金材质。
[权利要求 5] 根据权利要求 1所述的一种用于制备超仿棉涤锦空喷变形混纤丝的空 喷变形组合装置， 其特征在于： 所述的喷嘴芯为复合陶瓷材质。
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