摘要：【中文】本发明涉及一种用于针织的自卷曲弹性混纤丝的制备方法，该混纤丝在同一喷丝板上挤出；将第一成纤聚合物熔体分流成两路：一路经分配后直接挤出；另一路与第二成纤聚合物熔体一起按并列复合纺丝方式分配后挤出；第一成纤聚合物和第二成纤聚合物具有相容性或部分相容性；同一喷丝板上，直接挤出流经的喷丝孔m与按并列复合纺丝方式分配后挤出流经的喷丝孔n的数量之比为1:5～10；依照特定的纺丝工艺制得用于针织的自卷曲弹性混纤丝；该混纤丝主要由第一成纤聚合物单丝和第一成纤聚合物/第二成纤聚合物并列复合单丝组成；单丝卷曲方向随机分布。本发明的方法有效解决了双组分复合纤维针织物中所形成的“条阴状不匀”的问题。 【EN】The invention relates to a method for preparing self-curling elastic combined filament yarn for knitting, wherein the combined filament yarn is extruded on the same spinneret plate; splitting the first fiber-forming polymer melt into two paths: one path is directly extruded after being distributed; the other path and the second fiber forming polymer melt are distributed together in a parallel composite spinning mode and then extruded; the first fiber-forming polymer and the second fiber-forming polymer are compatible or partially compatible; on the same spinneret plate, the number ratio of spinneret orifices m for directly extruding flow to spinneret orifices n for extruding flow after being distributed in a parallel composite spinning mode is 1: 5-10; preparing self-curling elastic mixed filaments for knitting according to a specific spinning process; the combined filament yarn is mainly composed of first fiber-forming polymer monofilament and first fiber-forming polymer/second fiber-forming polymer side-by-side composite monofilament; the filament crimp direction is randomly distributed. The method of the invention effectively solves the problem of uneven strip shade formed in the bi-component composite fiber knitted fabric.

摘要：【中文】本发明涉及一种PTT/PET双组份弹性丝及其制备方法，按FDY工艺，将PET和PTT熔体分配后，从同一喷丝板上的喷丝孔m和n挤出制成FDY丝后进行松弛热处理制得，其中PTT和PET熔体经分配孔A、B流至喷丝孔m，经分配孔C、D流至喷丝孔n，在分配孔A、B、C、D的入口处，PET熔体和PTT熔体的表观粘度相差不超过5％，分配孔A、B为等高圆柱孔，且直径之比为1.24:1，分配孔C、D为等高圆柱孔，且直径之比为1:1.24；制得的双组份弹性丝由多根不同配比的PTT/PET并列复合单丝组成，双组份弹性丝中单丝卷曲方向随机分布。本发明的PTT/PET双组份弹性丝的针织物不存在的“条阴状不匀”的问题。 【EN】The invention relates to a PTT/PET double-component elastic filament and a preparation method thereof, wherein PET and a PTT melt are distributed according to an FDY process, and are extruded from spinneret orifices m and n on the same spinneret plate to form an FDY filament, and then the FDY filament is subjected to relaxation heat treatment to obtain the PTT/PET double-component elastic filament, wherein the PTT and the PET melt flow to the spinneret orifices m through a distribution hole A, B and flow to the spinneret orifices n through a distribution hole C, D, the difference between the apparent viscosities of the PET melt and the PTT melt at the inlet of a distribution hole A, B, C, D is not more than 5%, the distribution hole A, B is a cylindrical hole with the same height, the diameter ratio of the cylindrical hole is 1.24:1, the distribution hole C, D is a cylindrical hole with the same height; the prepared double-component elastic yarn is composed of a plurality of PTT/PET parallel composite monofilaments with different proportions, and the monofilaments in the double-component elastic yarn are randomly distributed in the curling direction. The knitted fabric of the PTT/PET double-component elastic yarn has the problem of uneven stripe shade which does not exist.

摘要：【中文】本发明涉及一种一字形防炫光纤维及其制备方法，在按FDY工艺由高粘度PET和低粘度PET制备圆形并列复合纤维的过程中，将喷丝板上的喷丝孔由圆形改为一字形，采用环吹风冷却，并控制喷丝板上的喷丝孔的排布满足一定条件(以任一一字形喷丝孔的横截面为基准，其他所有一字形喷丝孔的横截面都由基准随机旋转形成)，制得FDY丝后进行松弛热处理即得一字形防炫光纤维；制备并列复合纤维时，高粘度PET熔体和低粘度PET熔体经分配后，从同一喷丝板上的喷丝孔m与喷丝孔n挤出；高粘度PET熔体和低粘度PET熔体在各喷丝孔的导孔中流动时的接触面相互平行。本发明采用简单的方法制得了一字形防炫光纤维。 【EN】The invention relates to a straight-line anti-glare optical fiber and a preparation method thereof, wherein in the process of preparing circular parallel composite fibers by high-viscosity PET and low-viscosity PET according to an FDY process, spinneret holes on a spinneret plate are changed into a straight line from a circle, circular blowing is adopted for cooling, the arrangement of the spinneret holes on the spinneret plate is controlled to meet a certain condition (the cross section of any one straight-line spinneret hole is taken as a reference, and the cross sections of all other straight-line spinneret holes are randomly rotated from the reference), and the straight-line anti-glare optical fiber is obtained by performing relaxation heat treatment after FDY filaments are prepared; when the parallel composite fiber is prepared, high-viscosity PET melt and low-viscosity PET melt are distributed and then extruded from a spinneret orifice m and a spinneret orifice n on the same spinneret plate; the contact surfaces of the high-viscosity PET melt and the low-viscosity PET melt are parallel to each other when flowing in the guide holes of the spinneret holes. The invention adopts a simple method to prepare the in-line anti-glare optical fiber.

摘要：【中文】本发明涉及一种运动型针织面料及其制备方法，以棉纤维为面纱原料，以自卷曲弹性纤维为中间纱原料，以细旦十字形PET纤维为地纱原料，进行三线添纱编织并经整理制得运动型针织面料；自卷曲弹性纤维依照FDY工艺制得将CDP熔体分流成两路：一路经分配后直接挤出，另一路与PTT熔体一起按并列复合纺丝方式分配后挤出。本发明制得的运动型针织面料不存在“条阴状不匀”的问题；运动型针织面料的克重为120～160g/m²，经向和纬向的洗涤尺寸变化率均在‑1.0％～1.0％之间，运动型针织面料的吸水率≥275％，滴水扩散时间≤2.2秒，芯吸高度≥142mm，蒸发速率≥0.33g/h，透湿量≥128000g/(m²·d)。 【EN】The invention relates to a sports knitted fabricThe method comprises the steps of taking cotton fibers as a face yarn raw material, taking self-crimping elastic fibers as an intermediate yarn raw material, taking fine denier cross-shaped PET fibers as a ground yarn raw material, carrying out three-thread plating weaving, and finishing to obtain the sports knitted fabric; the self-curling elastic fiber is prepared by dividing CDP melt into two paths according to the FDY process: one path is directly extruded after being distributed, and the other path is extruded after being distributed together with the PTT melt in a parallel composite spinning mode. The sports knitted fabric prepared by the invention does not have the problem of uneven stripe shade; the gram weight of the sports knitted fabric is 120-160 g/m²The washing size change rate of the warp direction and the weft direction is between-1.0% and 1.0%, the water absorption of the sports knitted fabric is more than or equal to 275%, the water dropping diffusion time is less than or equal to 2.2 seconds, the wicking height is more than or equal to 142mm, the evaporation rate is more than or equal to 0.33g/h, and the moisture permeability is more than or equal to 128000g/(m & lt/m & gt)²·d)。

摘要：【中文】本发明涉及一种粘度不同的PET双组份弹性丝及其制备方法，粘度不同的PET双组份弹性丝在同一喷丝板上挤出，将高粘度PET熔体分流成两路：一路经分配后直接挤出；另一路与低粘度PET熔体一起按并列复合纺丝方式分配后挤出，直接挤出流经的喷丝孔m与按并列复合纺丝方式分配后挤出流经的喷丝孔n的数量之比为1:6～8，挤出后依照FDY工艺制成FDY丝后进行松弛热处理，即得粘度不同的PET双组份弹性丝；制得的双组份弹性丝由高粘度PET单丝和高粘度PET/低粘度PET并列复合单丝组成，双组份弹性丝中单丝卷曲方向随机分布。本发明制得的高低粘PET并列复合纤维成本较低，应用于针织物中不存在“条阴状不匀”的问题。 【EN】The invention relates to PET double-component elastic yarns with different viscosities and a preparation method thereof, wherein the PET double-component elastic yarns with different viscosities are extruded on the same spinneret plate, and a high-viscosity PET melt is divided into two paths: one path is directly extruded after being distributed; the other path of the extruded PET melt is distributed together with the low-viscosity PET melt in a parallel composite spinning mode and then extruded, the number ratio of spinneret orifices m through which the extruded PET melt flows directly to spinneret orifices n through which the extruded PET melt flows after being distributed in the parallel composite spinning mode is 1: 6-8, FDY yarns are prepared according to an FDY process after the extruded PET melt is extruded, and then relaxation heat treatment is carried out, so that PET double-component elastic yarns with different viscosities are obtained; the prepared two-component elastic yarn is composed of high-viscosity PET monofilament and high-viscosity PET/low-viscosity PET parallel composite monofilament, and the single monofilaments in the two-component elastic yarn are randomly distributed in the curling direction. The high-low viscosity PET parallel composite fiber prepared by the invention has low cost, and has no problem of uneven stripe shade when being applied to knitted fabrics.

摘要：【中文】本发明涉及一种地毯纱的制备方法，在按BCF工艺由阻燃PET和阻燃PTT制备圆形皮芯复合纤维的过程中，将喷丝板上的喷丝孔由圆形改为三叶形，采用环吹风冷却，并控制喷丝板上的三叶形喷丝孔的排布满足一定条件，制得地毯纱；制得的地毯纱具有扭曲形态和三维卷曲形态，且由多根横截面呈三叶形的阻燃PET/阻燃PTT皮芯复合单丝组成，围绕三叶形的中心作一假想圆，三叶形的三叶与假想圆重合的部分为芯层，其余部分为皮层；地毯纱的卷曲收缩率为42.5～49.7％，卷曲稳定度为70.1～80.9％；断裂强度≥2.5cN/dtex，断裂伸长率为30.2±5.0％，总纤度为1000～2000dtex，极限氧指数为31～33。 【EN】The invention relates to a preparation method of carpet yarn, in the process of preparing round sheath-core composite fiber by flame-retardant PET and flame-retardant PTT according to BCF technology, the spinneret holes on a spinneret plate are changed into trilobal from round, circular blowing cooling is adopted, and the arrangement of the trilobal spinneret holes on the spinneret plate is controlled to meet certain conditions, so that the carpet yarn is prepared; the prepared carpet yarn has a twisted shape and a three-dimensional curled shape, and consists of a plurality of flame-retardant PET/flame-retardant PTT sheath-core composite monofilaments with the cross sections in the trefoil shape, an imaginary circle is made around the center of the trefoil shape, the part of the trefoil shape overlapped with the imaginary circle is a core layer, and the rest part is a skin layer; the carpet yarn has a crimp shrinkage of 42.5-49.7% and a crimp stability of 70.1-80.9%; the breaking strength is more than or equal to 2.5cN/dtex, the elongation at break is 30.2 +/-5.0%, the total titer is 1000-2000 dtex, and the limiting oxygen index is 31-33.

摘要：【中文】本发明涉及一种针织绒线的制备方法，先进行细旦异形PTT纤维的制备：将PTT熔体从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却，依照FDY工艺制得FDY丝，即得细旦异形PTT纤维；在以细旦异形PTT纱线与混纺纱线作为原料，加工工艺流程为：染色→纺纱→松弛热处理；细旦异形PTT纱线由细旦异形PTT纤维组成，捻度为20～30捻/10cm；混纺纱线由棉纤维、竹纤维和变性苎麻纤维组成；最终制得的针织绒线中，细旦异形PTT纤维具有三维卷曲形态且横截面呈三叶形；由针织绒线制得的针织物的芯吸高度为11.6～12.7cm，经向和纬向的洗涤尺寸变化率均在‑3.0％～3.0％之间。 【EN】The invention relates to a preparation method of knitting wool, which comprises the following steps: extruding a PTT melt from a trilobal spinneret orifice on a spinneret plate, cooling by adopting circular blowing, and preparing FDY filaments according to an FDY process to obtain fine denier profiled PTT fibers; the processing process flow is that the fine denier special-shaped PTT yarn and the blended yarn are used as raw materials: dyeing → spinning → relaxation heat treatment; the fine denier special-shaped PTT yarn is composed of fine denier special-shaped PTT fibers, and the twist is 20-30 twists/10 cm; the blended yarn consists of cotton fiber, bamboo fiber and modified ramie fiber; in the finally prepared knitting wool, the fine denier special-shaped PTT fiber has a three-dimensional crimp shape and a trilobal cross section; the wicking height of the knitted fabric made of the knitted knitting wool is 11.6-12.7 cm, and the washing size change rate of the warp direction and the weft direction is-3.0%.

摘要：【中文】本发明涉及一种PET/PBT同板混纤丝的制备方法，先将PET和PBT从复合喷丝板上的三叶形喷丝孔和C形喷丝孔挤出，采用环吹风冷却，依照FDY工艺并进行松弛热处理得到PET/PBT同板混纤丝；PET对应三叶形喷丝孔，PBT对应C形喷丝孔，所有的喷丝孔呈同心圆分布；制得的PET/PBT同板混纤丝，具有三维卷曲形态，且由多根横截面呈三叶形的PET单丝和多根横截面呈C形的PBT单丝组成；该PET/PBT同板混纤丝卷曲收缩率为40～43％，卷曲稳定度为83～88％，紧缩伸长率为73～77％，卷缩弹性回复率为88.5～92.6％；断裂强度≥2.8cN/dtex，断裂伸长率为35.0±3.5％。 【EN】The invention relates to a preparation method of a PET/PBT same-plate mixed filament yarn, which comprises the steps of extruding PET and PBT from trilobal spinneret orifices and C-shaped spinneret orifices on a composite spinneret plate, cooling by circular blowing, and carrying out relaxation heat treatment according to an FDY process to obtain the PET/PBT same-plate mixed filament yarn; PET corresponds to the trilobal spinneret orifices, PBT corresponds to the C-shaped spinneret orifices, and all the spinneret orifices are distributed in concentric circles; the prepared PET/PBT same-plate mixed filament yarn has a three-dimensional curling shape and consists of a plurality of PET monofilaments with trilobal cross sections and a plurality of PBT monofilaments with C-shaped cross sections; the PET/PBT same-plate combined filament yarn has the crimping shrinkage rate of 40-43%, the crimping stability of 83-88%, the shrinkage elongation of 73-77% and the crimp elastic recovery of 88.5-92.6%; the breaking strength is more than or equal to 2.8cN/dtex, and the elongation at break is 35.0 +/-3.5%.

摘要：【中文】本发明涉及一种再生聚酯长丝及其制备方法，在按FDY工艺由再生聚酯制备纤维的过程中，采用环吹风冷却，并控制喷丝板上的喷丝孔的排布满足一定条件，制得FDY丝后进行松弛热处理即得再生聚酯长丝；喷丝孔为C形喷丝孔和圆形喷丝孔，C形喷丝孔的横截面由外弧线M、内弧线N和两线段围成，M的两端点分别为A和B；一定条件为：所有的喷丝孔呈同心圆分布，C形喷丝孔位于最外圈的圆上，以不同的角度旋转，随机分布；制得的再生聚酯长丝具有三维卷曲形态，且单丝卷曲方向随机分布。本发明采用简单的方法制得了具有三维卷曲形态的再生聚酯长丝，并解决了由三维卷曲纤维制得的针织物容易产生“条阴状不匀”的问题。 【EN】The invention relates to a regenerated polyester filament and a preparation method thereof, wherein in the process of preparing fiber from regenerated polyester according to an FDY (fully drawn yarn) process, circular air blow cooling is adopted, the arrangement of spinneret orifices on a spinneret plate is controlled to meet certain conditions, and after the FDY is prepared, relaxation heat treatment is carried out to obtain the regenerated polyester filament; the spinneret orifices are C-shaped spinneret orifices and circular spinneret orifices, the cross section of each C-shaped spinneret orifice is defined by an outer arc line M, an inner arc line N and two line sections, and two end points of the outer arc line M are A and B respectively; the certain conditions are as follows: all the spinneret orifices are distributed in concentric circles, and the C-shaped spinneret orifices are positioned on the outermost circle, rotate at different angles and are randomly distributed; the obtained regenerated polyester filament has three-dimensional crimp shape, and the crimp directions of the monofilaments are randomly distributed. The invention adopts a simple method to prepare the regenerated polyester filament with three-dimensional crimp shape and solves the problem that the knitted fabric prepared by three-dimensional crimp fiber is easy to generate uneven stripe shade.

摘要：【中文】本发明涉及一种仿醋酸长丝及其制备方法，在按FDY工艺由PBT和PTT制备纤维的过程中，采用环吹风冷却，并控制喷丝板上的喷丝孔的排布满足一定条件，制得FDY丝后进行松弛热处理即得仿醋酸长丝；喷丝孔为月牙形喷丝孔和中空形喷丝孔，PBT对应月牙形喷丝孔，PTT对应中空形喷丝孔，月牙形喷丝孔的横截面由外弧线M和内弧线N围成，外弧线M和内弧线N的两交点分别为A和B，线段AB的长度大于0.1mm；制得的仿醋酸长丝具有三维卷曲形态，且单丝卷曲方向随机分布。本发明采用简单的方法制得了具有三维卷曲形态的仿醋酸长丝，弥补了醋酸纤维自身的不足。 【EN】The invention relates to an artificial acetic acid filament and a preparation method thereof, in the process of preparing fibers from PBT and PTT according to an FDY process, circular blowing is adopted for cooling, the arrangement of spinneret orifices on a spinneret plate is controlled to meet certain conditions, and after the FDY is prepared, relaxation heat treatment is carried out to obtain the artificial acetic acid filament; the spinneret orifices are crescent spinneret orifices and hollow spinneret orifices, PBT corresponds to the crescent spinneret orifices, PTT corresponds to the hollow spinneret orifices, the cross section of the crescent spinneret orifices is surrounded by an outer arc line M and an inner arc line N, two intersection points of the outer arc line M and the inner arc line N are respectively A and B, and the length of a line segment AB is more than 0.1 mm; the prepared imitated acetate filaments have a three-dimensional curling shape, and the curling directions of the monofilaments are randomly distributed. The invention adopts a simple method to prepare the acetate-like filament with a three-dimensional crimp shape, and makes up for the defects of acetate fibers.