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CN107723827A - A kind of absorbing fast-drying original liquid coloring fiber and preparation method thereof - Google Patents

A kind of absorbing fast-drying original liquid coloring fiber and preparation method thereof Download PDF

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CN107723827A
CN107723827A CN201610654222.4A CN201610654222A CN107723827A CN 107723827 A CN107723827 A CN 107723827A CN 201610654222 A CN201610654222 A CN 201610654222A CN 107723827 A CN107723827 A CN 107723827A
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polyester
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reaction
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CN107723827B (en
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邱志成
李鑫
金剑
廉志军
李志勇
赵亮
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China Textile Academy
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/86Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from polyetheresters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66Polyesters containing oxygen in the form of ether groups
    • C08G63/668Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672Dicarboxylic acids and dihydroxy compounds
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02Heat treatment
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/12Stretch-spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/253Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Artificial Filaments (AREA)

Abstract

本发明属于纺织技术领域,具体地说,涉及一种吸湿速干原液着色纤维及其制备方法。所述制备方法包括如下步骤:(1)将着色剂、亲水改性剂喂入螺杆挤出机,经螺杆挤出机熔融混合得到色浆;(2)将色浆注入聚酯低聚物管道并与来自酯化系统的聚酯低聚物混合均匀后进入缩聚系统中依次经过预缩聚反应、终缩聚反应得到着色聚酯熔体;(3)所得着色聚酯熔体经异形截面喷丝板纺丝成型,得到吸湿速干原液着色纤维。本发明有效地解决了亲水剂与聚酯材料的相容性问题,结合纤维截面的异型化处理,使得按照本发明方法制成的聚酯纤维具有优异的吸湿速干性、色泽均匀性和色牢度,且具有良好的舒适性。The invention belongs to the technical field of textiles, and in particular relates to a moisture-absorbing and quick-drying stock solution colored fiber and a preparation method thereof. The preparation method comprises the following steps: (1) feeding the colorant and the hydrophilic modifier into a screw extruder, and melting and mixing through the screw extruder to obtain a color paste; (2) injecting the color paste into the polyester oligomer pipeline and mixed evenly with the polyester oligomer from the esterification system, and then enter the polycondensation system to undergo a pre-condensation reaction and a final polycondensation reaction to obtain a colored polyester melt; The sheet is spun and formed to obtain moisture-absorbing and quick-drying dope-colored fibers. The invention effectively solves the problem of compatibility between the hydrophilic agent and the polyester material, combined with the special-shaped treatment of the fiber cross-section, the polyester fiber made according to the method of the invention has excellent moisture absorption and quick-drying properties, color uniformity and Color fastness and good comfort.

Description

一种吸湿速干原液着色纤维及其制备方法A moisture-absorbing and quick-drying stock solution colored fiber and its preparation method

技术领域technical field

本发明属于纺织技术领域,具体地说,涉及一种吸湿速干原液着色纤维及其制备方法。The invention belongs to the technical field of textiles, and in particular relates to a moisture-absorbing and quick-drying stock solution colored fiber and a preparation method thereof.

背景技术Background technique

聚酯纤维具有断裂强度高、形态稳定、挺括性好、抗皱免烫、易洗易干等优点,是一种比较理想的纺织纤维。但是由于聚酯分子的线性状态较好,分子链上没有大的侧链和支链,而且经过纺丝过程中拉伸和定形作用,分子排列整齐,结晶度高,取向性好,分子间空隙小,染料不易渗入;大分子链上没有羟基、氨基等吸湿性基团,只有极性较小的酯基;这些结构特性也给聚酯纤维带来了染色性差、吸湿性低、织物穿着有湿闷感等缺点。目前聚酯纤维染色主要采用分散染料高温高压染色工艺,该工艺存在设备要求高、投资多、三废处理困难等突出问题。因此,采用节能、环保的着色技术,对促进聚酯纤维的可持续发展至关重要。Polyester fiber has the advantages of high breaking strength, stable shape, good crispness, anti-wrinkle and non-ironing, easy to wash and dry, and is an ideal textile fiber. However, due to the good linear state of the polyester molecule, there are no large side chains and branched chains on the molecular chain, and after being stretched and shaped during the spinning process, the molecules are arranged neatly, with high crystallinity, good orientation, and intermolecular gaps. Small, dyes are not easy to penetrate; there are no hygroscopic groups such as hydroxyl and amino groups on the macromolecular chain, only ester groups with less polarity; these structural characteristics also bring poor dyeability, low hygroscopicity, and fabric wear to polyester fibers. Disadvantages such as dampness and stuffiness. At present, polyester fiber dyeing mainly adopts high-temperature and high-pressure dyeing process with disperse dyes. This process has outstanding problems such as high equipment requirements, high investment, and difficult disposal of three wastes. Therefore, adopting energy-saving and environment-friendly coloring technology is very important to promote the sustainable development of polyester fiber.

聚酯纤维原液着色具有工艺简单、色牢度好、着色均匀、节约能源、“三废”少等优点,尤其适用于大批量生产及开发聚酯纤维交织织物。原液着色聚酯纤维是指在聚酯熔体中加入着色剂,经纺丝过程得到的有色纤维,也称为无染纤维或纺前染色纤维。原液着色聚酯纤维的后道应用,可以省去印染工序,避免产生大量的印染废水,具有突出的环境友好特征。Polyester fiber stock solution dyeing has the advantages of simple process, good color fastness, uniform coloring, energy saving, and less "three wastes", and is especially suitable for mass production and development of polyester fiber interwoven fabrics. Dope dyed polyester fiber refers to the colored fiber obtained by adding a coloring agent to the polyester melt through the spinning process, also known as non-dyed fiber or pre-spun dyed fiber. The subsequent application of the dope-dyed polyester fiber can save the printing and dyeing process and avoid a large amount of printing and dyeing wastewater, which has outstanding environmental friendliness.

申请号为201310147346.X的中国专利公开了一种原液着色制备有色聚酯纤维的方法,在进入纺丝箱体之前,注入由染料、液状聚酯载体、增塑剂和分散剂组成的液态色浆混合均匀后,进行熔体直接纺丝制备有色聚酯纤维。液状聚酯载体与聚酯熔体的相容性以及增塑剂和分散剂等低分子物质的存在都将极大的影响着色聚酯熔体的可纺性。此外,液状聚酯载体大分子链上只有极性较小的酯基,因此它的引入并不会改善原液着色纤维的疏水特性,导致所制备的织物穿着有湿闷感。The Chinese patent with the application number 201310147346.X discloses a method for preparing colored polyester fibers by dope dyeing. Before entering the spinning box, a liquid colored polyester fiber composed of dye, liquid polyester carrier, plasticizer and dispersant is injected. After the pulp is evenly mixed, the melt is directly spun to prepare colored polyester fibers. The compatibility of the liquid polyester carrier with the polyester melt and the presence of low molecular weight substances such as plasticizers and dispersants will greatly affect the spinnability of the colored polyester melt. In addition, there are only less polar ester groups on the macromolecular chain of the liquid polyester carrier, so its introduction will not improve the hydrophobic properties of the dope-dyed fibers, resulting in a damp feeling in the prepared fabric.

为了克服现有技术中的缺陷,特提出本发明。In order to overcome the defects in the prior art, the present invention is proposed.

发明内容Contents of the invention

本发明旨在提供一种吸湿速干原液着色纤维的制备方法及吸湿速干原液着色纤维,以解决现有技术中原液着色熔体因与着色剂载体相容性差而导致纺丝性能劣化的问题以及原液着色纤维因疏水特性而导致织物舒适度差的问题。The present invention aims to provide a method for preparing moisture-absorbing and quick-drying dope-colored fibers and a moisture-absorbing and quick-drying dope-colored fiber, so as to solve the problem in the prior art that the dope-colored melt has poor compatibility with the colorant carrier and causes the spinning performance to deteriorate As well as the problem of poor fabric comfort due to the hydrophobic properties of dope dyed fibers.

为实现上述目的,本发明采用如下技术方案:To achieve the above object, the present invention adopts the following technical solutions:

一种吸湿速干原液着色纤维的制备方法,包括以下的步骤:A method for preparing moisture-absorbing and quick-drying dope dyed fiber, comprising the following steps:

(1)将着色剂、亲水改性剂喂入螺杆挤出机,经螺杆挤出机熔融混合得到色浆,其中着色剂的含量为5~60wt%;(1) Feed the coloring agent and the hydrophilic modifier into the screw extruder, and melt and mix through the screw extruder to obtain the color paste, wherein the content of the coloring agent is 5-60wt%;

上述色浆中着色剂的含量为5~60wt%,在该含量下可以实现着色剂在载体聚亚烷基二醇中的均匀分散。The content of the coloring agent in the color paste is 5-60 wt%, and the uniform dispersion of the coloring agent in the carrier polyalkylene glycol can be realized under this content.

(2)将步骤(1)中制备得到色浆在线注入聚酯低聚物管道并与来自酯化系统的聚合度为1~8聚酯低聚物经动态混合器混合均匀后进入预缩聚系统进行预缩聚反应,得到粘度为0.15~0.45dL/g着色预聚物;(2) The color paste prepared in step (1) is injected into the polyester oligomer pipeline on-line and mixed with the polyester oligomer with a degree of polymerization of 1 to 8 from the esterification system through a dynamic mixer and then enters the precondensation system Carry out precondensation reaction to obtain a colored prepolymer with a viscosity of 0.15-0.45dL/g;

将着色聚酯熔体的特性粘度控制在上述范围,即可保证其在后续熔融纺丝过程中具有良好的可纺性,又可以保证所制备的纤维的力学性能可满足后道加工需求。Controlling the intrinsic viscosity of the colored polyester melt within the above range can ensure its good spinnability in the subsequent melt spinning process and ensure that the mechanical properties of the prepared fibers can meet the requirements of subsequent processing.

上述聚酯低聚物包括但不限于对苯二甲酸乙二醇酯低聚物、对苯二甲酸丙二醇酯低聚物、对苯二甲酸丁二醇酯低聚物。优选地,聚酯低聚物的聚合度为1~8。将聚酯低聚物聚合度控制在上述范围,有利于其与载体聚亚烷基二醇共缩聚反应的发生,实现聚亚烷基二醇链段在聚酯分子链中的均匀分布,使制备的着色聚酯熔体具有良好的可纺性。The aforementioned polyester oligomers include, but are not limited to, ethylene terephthalate oligomers, propylene terephthalate oligomers, and butylene terephthalate oligomers. Preferably, the degree of polymerization of the polyester oligomer is 1-8. Controlling the degree of polymerization of the polyester oligomer within the above range is conducive to the occurrence of cocondensation reaction with the carrier polyalkylene glycol, and realizes the uniform distribution of the polyalkylene glycol segment in the polyester molecular chain, so that The prepared colored polyester melt has good spinnability.

上述步骤中,色浆在线注入聚酯低聚物管道后与来自酯化系统的聚酯低聚物经动态混合器进行混合,可以实现着色剂在主物料聚酯低聚物中的高效均匀分散。相比于传统的管道式静态混合器的混合组件,动态混合器的混合组件能够通过高速旋转提供强大的剪切力实现物料的高效破碎混合。上述动态混合器包括但不限于高剪切均化泵。In the above steps, the color paste is injected into the polyester oligomer pipeline online and then mixed with the polyester oligomer from the esterification system through a dynamic mixer to achieve efficient and uniform dispersion of the colorant in the main material polyester oligomer . Compared with the mixing component of the traditional pipeline static mixer, the mixing component of the dynamic mixer can provide strong shear force through high-speed rotation to achieve efficient crushing and mixing of materials. Such dynamic mixers include, but are not limited to, high shear homogenizer pumps.

(3)将步骤(2)制备得到的着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,得到粘度为0.50~1.20dL/g着色聚酯熔体;(3) Filter the colored prepolymer prepared in step (2) through a prepolymer filter and enter the final polycondensation system for final polycondensation reaction to obtain a colored polyester melt with a viscosity of 0.50 to 1.20 dL/g;

(4)将步骤(3)制备得到着色聚酯熔体经过熔体过滤器过滤后进入纺丝箱体经异形截面喷丝板纺丝成型,得到吸湿速干原液着色纤维。(4) The colored polyester melt prepared in step (3) is filtered through a melt filter, then enters a spinning box, and is spun and formed through a spinneret with a special-shaped cross section to obtain a moisture-absorbing and quick-drying stock solution colored fiber.

上述异形截面喷丝板的截面包括但不限于三角形、三叶形、五叶形、V形、C形、Y形、T形、H形、十字形。The cross-sections of the spinnerets with special-shaped cross-sections include, but are not limited to, triangular, trilobal, five-lobal, V-shaped, C-shaped, Y-shaped, T-shaped, H-shaped, and cross-shaped.

在上述制备方法中,所述着色剂为酯溶性着色剂。In the above preparation method, the colorant is an ester-soluble colorant.

本发明所提供的上述方法中,使用酯溶性着色剂作为聚酯原液着色用着色剂,该类着色剂可溶解于聚酯基体中,实现着色剂分子的均匀分散,消除了着色剂对着色聚酯熔体可纺性的影响。而且酯溶性着色剂具有良好的热稳定性,在着色聚酯聚合、纺丝过程中不分解、不升华。上述的酯溶性着色剂包括但不限于C.I.溶剂蓝83、90、94、97、101、104、102、105、130、132,C.I.溶剂黄116、117、125、156、158、163、167,C.I.溶剂红135、138、145、146、150、151、155、168、172、169、175、181、207、222,C.I.溶剂黑3、5、7、27、45、47。In the above-mentioned method provided by the present invention, use ester-soluble coloring agent as the coloring agent for polyester dope coloring, this type of coloring agent can be dissolved in the polyester matrix, realizes the uniform dispersion of coloring agent molecule, eliminates coloring agent to coloring polymer Effect of ester melt on spinnability. Moreover, the ester-soluble colorant has good thermal stability, and does not decompose or sublime during the polymerization and spinning of colored polyester. The above-mentioned ester-soluble colorants include but are not limited to C.I. Solvent Blue 83, 90, 94, 97, 101, 104, 102, 105, 130, 132, C.I. Solvent Yellow 116, 117, 125, 156, 158, 163, 167, C.I. Solvent Red 135, 138, 145, 146, 150, 151, 155, 168, 172, 169, 175, 181, 207, 222, C.I. Solvent Black 3, 5, 7, 27, 45, 47.

在上述制备方法中,所述亲水改性剂为1000~10000分子量的聚亚烷基二醇。In the above preparation method, the hydrophilic modifier is polyalkylene glycol with a molecular weight of 1000-10000.

本发明所提供的上述方法中,使用亲水改性剂聚亚烷基二醇作为着色剂载体。聚亚烷基二醇与着色剂按比例喂入螺杆挤出机,经螺杆挤出机熔融混合得到色浆直接注入聚酯低聚物管道。该色浆调配与供应工艺可在5~15min完成,减少了着色剂载体聚亚烷基二醇的受热时间,有效避免了聚亚烷基二醇的降解。色浆注入流量根据低聚物流量比例调节,该工艺可实现着色剂的精确比例添加。而且作为着色剂载体的聚亚烷基二醇注入聚酯低聚物管道后,在后续的缩聚反应工序中与聚酯低聚物通过共缩聚反应嵌入聚酯分子链中,有效解决了聚亚烷基二元醇与聚酯组分的相容性问题,使制备的着色聚酯熔体具有良好的纺丝性能。同时,亲水性聚亚烷基二醇引入到聚酯分子主链中,可使纺制的原液着色纤维表面性质由疏水性变为亲水性,具有对水或水汽的浸润或吸湿能力。上述聚亚烷基二醇的分子量为1000~10000,因为该分子量范围内的聚亚烷基二醇具有适中的动力粘度,便于色浆的配制。上述聚亚烷基二醇包括但不限于聚乙二醇、聚丙二醇和聚丁二醇。In the above method provided by the present invention, the hydrophilic modifier polyalkylene glycol is used as the colorant carrier. The polyalkylene glycol and the colorant are fed into the screw extruder in proportion, and the color paste obtained by melting and mixing through the screw extruder is directly injected into the polyester oligomer pipeline. The preparation and supply process of the color paste can be completed in 5-15 minutes, which reduces the heating time of the colorant carrier polyalkylene glycol and effectively avoids the degradation of the polyalkylene glycol. The injection flow rate of color paste is adjusted according to the proportion of oligomer flow rate, and this process can realize the precise proportion addition of colorants. Moreover, after polyalkylene glycol as a colorant carrier is injected into the polyester oligomer pipeline, it will be embedded in the polyester molecular chain through co-condensation reaction with the polyester oligomer in the subsequent polycondensation reaction process, effectively solving the problem of polyalkylene glycol. The compatibility of alkyl diols and polyester components makes the prepared colored polyester melt have good spinning performance. At the same time, the hydrophilic polyalkylene glycol is introduced into the main chain of the polyester molecule, which can change the surface property of the spun dope dyed fiber from hydrophobicity to hydrophilicity, and has the ability to infiltrate or absorb water or water vapor. The molecular weight of the above-mentioned polyalkylene glycol is 1000-10000, because the polyalkylene glycol within this molecular weight range has a moderate dynamic viscosity, which is convenient for the preparation of the color paste. The aforementioned polyalkylene glycols include, but are not limited to, polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.

在上述制备方法中,所述缩聚反应所采用的催化剂的加入量为聚酯低聚物质量的0.003~0.2wt%,所述催化剂为锑系催化剂、钛系催化剂和锗系催化剂中的至少一种。In the above preparation method, the amount of catalyst used in the polycondensation reaction is 0.003 to 0.2 wt% of the polyester oligomer mass, and the catalyst is at least one of antimony-based catalysts, titanium-based catalysts and germanium-based catalysts. kind.

在锑系催化剂和/或钛系催化剂和/或锗系催化剂的催化作用下,能够使着色剂载体聚亚烷基二醇与聚酯低聚物之间发生共缩聚反应,生成共聚酯,从而将聚亚烷基二醇分子链嵌入到聚酯分子链中。将催化剂的加入量控制在上述范围,有利于平衡反应效率和生产成本。上述锑系催化剂包括但不限于乙二醇锑、醋酸锑或三氧化二锑,钛系催化剂包括但不限于乙二醇钛、钛酸四丁酯、钛酸四异丙酯,锗系催化剂包括但不限于氧化锗。Under the catalysis of antimony-based catalysts and/or titanium-based catalysts and/or germanium-based catalysts, co-condensation reactions can occur between colorant carrier polyalkylene glycols and polyester oligomers to generate copolyesters, Thus, the polyalkylene glycol molecular chain is embedded in the polyester molecular chain. Controlling the addition amount of the catalyst within the above range is beneficial to balance the reaction efficiency and production cost. The above-mentioned antimony-based catalysts include but not limited to antimony glycol, antimony acetate or antimony trioxide, titanium-based catalysts include but not limited to titanium ethylene glycol, tetrabutyl titanate, tetraisopropyl titanate, germanium-based catalysts include But not limited to germanium oxide.

在上述制备方法中,步骤(1)所述螺杆挤出机熔融混合温度为30~150℃。In the above preparation method, the melt mixing temperature of the screw extruder in step (1) is 30-150°C.

在上述制备方法中,步骤(2)所述色浆在线注入量为聚酯低聚物质量的3~20wt%,并根据聚酯低聚物流量比例调节。In the above preparation method, the online injection amount of the color paste in step (2) is 3-20 wt% of the polyester oligomer mass, and is adjusted according to the flow rate ratio of the polyester oligomer.

上述色浆的注入量为聚酯低聚物质量的3~20wt%,并根据聚酯低聚物流量比例调节,在该用量比例下,所制备的着色聚酯熔体可保持良好的可纺性,而且纺制的纤维具有良好的亲水性能。The injection amount of the above-mentioned color paste is 3-20wt% of the polyester oligomer mass, and is adjusted according to the flow ratio of the polyester oligomer. Under this dosage ratio, the prepared colored polyester melt can maintain good spinnability. Sex, and the spun fibers have good hydrophilic properties.

在上述制备方法中,步骤(2)所述预缩聚反应的反应温度为220~280℃,反应时间为40~120min。在该预缩聚反应工序条件下可制备满足后续终缩聚反应工序的预聚物。In the above preparation method, the reaction temperature of the precondensation reaction in step (2) is 220-280° C., and the reaction time is 40-120 minutes. Under the conditions of the precondensation reaction process, a prepolymer that satisfies the subsequent final polycondensation reaction process can be prepared.

在上述制备方法中,步骤(3)所述终缩聚反应的反应温度为230~285℃,反应时间为60~240min。In the above preparation method, the reaction temperature of the final polycondensation reaction in step (3) is 230-285° C., and the reaction time is 60-240 min.

在上述制备方法中,步骤(4)所述吸湿速干原液着色纤维的纺丝温度为230~285℃。In the above preparation method, the spinning temperature of the moisture-absorbing and quick-drying dope-colored fiber in step (4) is 230-285°C.

在该纺丝温度下形成的原液着色聚酯纤维的直径较为均匀,纤维形貌良好。The diameter of the dope-dyed polyester fiber formed at the spinning temperature is relatively uniform, and the fiber shape is good.

将本发明所提供的上述着色聚酯熔体进行纺丝后,通过对牵伸、卷绕工艺进行调整,能够制备出不同类型的纤维,比如全拉伸丝FDY、假捻变形丝DTY或短纤维。具体的各类型纤维的纺丝工艺如下:After spinning the above-mentioned colored polyester melt provided by the present invention, different types of fibers can be prepared by adjusting the drawing and winding processes, such as fully drawn yarn FDY, false twist textured yarn DTY or short fiber. The specific spinning process of various types of fibers is as follows:

制备原液着色聚酯纤维全拉伸丝FDY的工艺具体如下:The process of preparing dope dyed polyester fiber fully drawn yarn FDY is as follows:

纺丝速度为3500~5200m/min,热辊GR1的速度为1200~3000m/min,温度为50~100℃,热辊GR2的速度为3500~5200m/min,温度为105~150℃。The spinning speed is 3500-5200m/min, the speed of hot roll GR1 is 1200-3000m/min, the temperature is 50-100°C, the speed of hot roll GR2 is 3500-5200m/min, and the temperature is 105-150°C.

制备原液着色聚酯纤维假捻变形丝DTY的工艺具体如下:The process of preparing dope dyed polyester fiber false twist textured yarn DTY is as follows:

纺丝速度为2000~4000m/min,制得预取向丝POY。预取向丝POY经过加弹工艺制得假捻变形丝DTY,其加弹工艺为:加工速度300~1200m/min,拉伸倍数1.3~3倍,变形温度120~210℃,定型温度100~200℃,D/Y为1.3~3.0。The spinning speed is 2000-4000m/min, and the pre-oriented yarn POY is obtained. The pre-oriented yarn POY is made into false twist textured yarn DTY through the texturing process. The texturing process is as follows: processing speed 300-1200m/min, stretching ratio 1.3-3 times, deformation temperature 120-210 ℃, setting temperature 100-200 °C, D/Y ranges from 1.3 to 3.0.

制备原液着色聚酯纤维短纤维的工艺具体如下:The process of preparing stock solution dyed polyester staple fiber is as follows:

纺丝速度为600~1500m/min,拉伸温度为50~130℃,一级牵伸倍率为2~5倍,二级牵伸倍率为1.05~2倍,卷曲温度为50~90℃,定型温度为110~150℃。The spinning speed is 600-1500m/min, the stretching temperature is 50-130°C, the primary draft ratio is 2-5 times, the secondary draft ratio is 1.05-2 times, and the crimping temperature is 50-90°C. The temperature is 110-150°C.

本发明还提供了一种由上述方法制成的吸湿速干原液着色聚酯纤维,所纤维的着色剂含量为0.3~10.0wt%,色泽均匀度为3~5级,滴水扩散时间为0.1~3s,蒸发速率为0.18~1.30g/h,耐皂洗色牢度3~5级。The present invention also provides a kind of moisture-absorbing and quick-drying dope dyed polyester fiber made by the above method, the colorant content of the fiber is 0.3-10.0wt%, the color uniformity is 3-5 grades, and the drip diffusion time is 0.1-10.0wt%. 3s, the evaporation rate is 0.18~1.30g/h, and the color fastness to soaping is 3~5.

本发明提供了一种吸湿速干原液着色纤维及其制备方法。该制备方法中,使用亲水改性剂聚亚烷基二醇作为酯溶性着色剂载体配制色浆,通过采用色浆聚酯低聚物管线在线添加工艺,聚亚烷基二醇在缩聚系统中可经过与聚酯低聚物之间的共缩聚反应嵌入聚酯分子主链中,有效解决了聚亚烷基二醇与聚酯的相容性问题,使制备的着色聚酯熔体具有良好的纺丝性能,所纺制的原液着色纤维色泽均匀,色牢度高。同时,将亲水性聚亚烷基二醇链段引入到聚酯分子主链中,使纺制的原液着色纤维表面性质由疏水性变为亲水性,具有对水或水汽的浸润或吸湿能力,结合纤维截面异型化控制,纤维吸收的水分再经异型纤维原纤间的微细沟槽和织物纤维纱线间的孔洞缝隙经芯吸、传导迅速迁移至织物的表面并发散至外层空间,从而达到吸湿速干的效果。以上两方面的因素使得本发明所提供的原液着色纤维具有优异的吸湿速干性、色泽均匀性和色牢度,使得制成的纺织品具有良好的舒适性。The invention provides a moisture-absorbing and quick-drying stock solution colored fiber and a preparation method thereof. In the preparation method, the hydrophilic modifier polyalkylene glycol is used as the carrier of the ester-soluble colorant to prepare the color paste, and the polyalkylene glycol is added in the polycondensation system through the online addition process of the polyester oligomer pipeline of the color paste. It can be embedded in the main chain of polyester molecules through the co-condensation reaction with polyester oligomers, which effectively solves the compatibility problem between polyalkylene glycol and polyester, and makes the prepared colored polyester melt have Good spinning performance, the spun dope dyed fiber has uniform color and high color fastness. At the same time, the hydrophilic polyalkylene glycol segment is introduced into the main chain of the polyester molecule, so that the surface properties of the spun dope dyed fiber change from hydrophobic to hydrophilic, and have the ability to infiltrate or absorb water or water vapor. Ability, combined with the control of fiber cross-section profiled, the moisture absorbed by the fiber quickly migrates to the surface of the fabric through the micro-grooves between the profiled fiber fibrils and the holes and gaps between the fabric fiber yarns through wicking and conduction, and then spreads to the outer space , so as to achieve the effect of moisture absorption and quick drying. The above two factors make the dope-dyed fiber provided by the invention have excellent moisture absorption and quick-drying properties, color uniformity and color fastness, and make the finished textiles have good comfort.

具体实施方式detailed description

以下结合具体实施例对本发明作进一步详细描述,这些实施例不能理解为限制本发明所要求保护的范围。The present invention will be described in further detail below in conjunction with specific examples, and these examples should not be construed as limiting the scope of protection claimed by the present invention.

实施例1Example 1

将着色剂C.I.溶剂红138和分子量为4000聚乙二醇按照重量比40:60的比例加入到螺杆挤出机中在80℃熔融混合,得到着色剂C.I.溶剂红138含量为40wt%的色浆。The colorant C.I. Solvent Red 138 and polyethylene glycol with a molecular weight of 4000 are added to a screw extruder at a weight ratio of 40:60 and melted and mixed at 80°C to obtain a colorant C.I. Solvent Red 138 with a content of 40wt%. .

向来自酯化系统的聚合度为5的对苯二甲酸乙二醇酯低聚物中注入相当于其质量10wt%的上述着浆和0.05wt%的锑系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为265℃、反应时间为90min,得到特性粘度为0.28dL/g的着色预聚物。The ethylene terephthalate oligomer with a polymerization degree of 5 from the esterification system is injected with the above-mentioned slurry and 0.05 wt% antimony catalyst equivalent to 10 wt% of its mass, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 265°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.28dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为270℃、反应时间为240min,得到特性粘度为0.67dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 270° C. and the reaction time is 240 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.67 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经十字形截面喷丝板进行纺丝,纺丝温度为280℃、卷绕速度4800m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1900m/min,温度为70℃,热辊GR2的速度为4850m/min,温度为120℃。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a cross-section spinneret at a spinning temperature of 280°C and a winding speed of 4800m/min. Drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1900 m/min, and the temperature is 70°C, and the speed of the heat roll GR2 is 4850 m/min, and the temperature is 120°C.

实施例2Example 2

将着色剂C.I.溶剂蓝83和分子量为6000聚丁二醇按照重量比30:70的比例加入到螺杆挤出机中在100℃熔融混合,得到着色剂C.I.溶剂蓝83含量为30wt%的色浆。Add colorant C.I. solvent blue 83 and polytetramethylene glycol with a molecular weight of 6000 to a screw extruder at a weight ratio of 30:70 and melt and mix at 100°C to obtain colorant C.I. solvent blue 83 with a content of 30wt%. .

向来自酯化系统的聚合度为4的对苯二甲酸丁二醇酯低聚物中注入相当于其质量15wt%的上述色浆和0.1wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为245℃、反应时间为40min,得到特性粘度为0.35dL/g的着色预聚物。Inject the above-mentioned color paste and 0.1wt% titanium series catalyst equivalent to 15wt% of its mass into the butylene terephthalate oligomer with a polymerization degree of 4 from the esterification system, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 245°C and the reaction time is 40 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.35dL/g.

上述着色预聚物经的预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为250℃、反应时间为120min,得到特性粘度为1.10dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through the prepolymer filter and enters the final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 250°C and the reaction time is 120min to obtain a colored polyester melt with an intrinsic viscosity of 1.10dL/g .

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经H形截面喷丝板进行纺丝,纺丝温度为255℃、卷绕速度4500m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1600m/min,温度为60℃,热辊GR2的速度为4550m/min,温度为110℃。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through an H-shaped cross-section spinneret. The spinning temperature is 255°C and the winding speed is 4500m/min. Drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1600 m/min, and the temperature is 60°C, and the speed of the heat roll GR2 is 4550 m/min, and the temperature is 110°C.

实施例3Example 3

将着色剂C.I.溶剂黄167和分子量为3000聚丙二醇按照重量比30:70的比例加入到螺杆挤出机中在60℃熔融混合,得到着色剂C.I.溶剂黄167含量为30wt%的色浆。The colorant C.I. Solvent Yellow 167 and polypropylene glycol with a molecular weight of 3000 were added to a screw extruder at a weight ratio of 30:70 and melted and mixed at 60°C to obtain a colorant C.I. Solvent Yellow 167 with a content of 30wt%.

向来自酯化系统的聚合度为3的对苯二甲酸丙二醇酯低聚物中注入相当于其质量8wt%的上述色浆和0.2wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为240℃、反应时间为75min,得到特性粘度为0.35dL/g的着色预聚物。Inject the propylene glycol terephthalate oligomer with a polymerization degree of 3 from the esterification system into the above-mentioned color paste equivalent to 8 wt% of its mass and 0.2 wt% of titanium-based catalyst, and the materials are mixed by a high-shear homogenizing pump After uniformity, enter the precondensation system for precondensation reaction. The temperature of the precondensation reaction is 240° C. and the reaction time is 75 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.35 dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为250℃、反应时间为120min,得到特性粘度为0.95dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 250° C. and the reaction time is 120 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.95 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经C形截面喷丝板进行纺丝,纺丝温度为245℃、卷绕速度4200m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1400m/min,温度为60℃,热辊GR2的速度为4550m/min,温度为110℃。The above-mentioned colored polyester melt is filtered by a melt filter and enters the spinning box through a C-shaped cross-section spinneret for spinning. The spinning temperature is 245°C and the winding speed is 4200m/min. Drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1400 m/min, and the temperature is 60°C, and the speed of the heat roll GR2 is 4550 m/min, and the temperature is 110°C.

实施例4Example 4

将着色剂C.I.溶剂黑5和分子量为2000聚乙二醇按照重量比5:95的比例加入到螺杆挤出机中在60℃熔融混合,得到着色剂C.I.溶剂黑3含量为5wt%的色浆。Add colorant C.I. solvent black 5 and polyethylene glycol with a molecular weight of 2000 to a screw extruder at a weight ratio of 5:95 and melt and mix at 60°C to obtain colorant C.I. solvent black 3 with a content of 5 wt%. .

向来自酯化系统的聚合度为1的对苯二甲酸乙二醇酯低聚物中注入相当于其质量6.4wt%的上述色浆和0.003wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为280℃、反应时间为90min,得到特性粘度为0.20dL/g的着色预聚物。Inject the above-mentioned color paste and 0.003wt% titanium-based catalyst equivalent to 6.4wt% of its mass into the ethylene terephthalate oligomer with a polymerization degree of 1 from the esterification system, and the material is homogenized by high shear After the chemical pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 280°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.20dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为285℃、反应时间为180min,得到特性粘度为0.62dL/g的着色聚酯熔体。The above-mentioned colored prepolymer was filtered through a prepolymer filter and then entered into a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature was 285° C. and the reaction time was 180 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.62 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经Y形截面喷丝板进行纺丝,纺丝温度为285℃、卷绕速度3000m/min,得到吸湿速干原液着色纤维预取向丝POY。将该纤维在加弹机上以800m/min的加工速度牵伸1.6倍。其中变形温度为180℃,定型温度为160℃,D/Y为2.2,得到吸湿速干原液着色纤维假捻变形丝DTY。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a Y-shaped cross-section spinneret. The spinning temperature is 285°C and the winding speed is 3000m/min, and the moisture-absorbing and quick-drying dope colored fiber is obtained. Pre-oriented yarn POY. The fibers were drawn 1.6 times on a texturing machine at a processing speed of 800 m/min. Among them, the deformation temperature is 180°C, the setting temperature is 160°C, and the D/Y is 2.2, so that the hygroscopic and quick-drying dope dyed fiber false twist textured yarn DTY is obtained.

实施例5Example 5

将着色剂C.I.溶剂红207和分子量为4000聚丁二醇按照重量比10:90的比例加入到螺杆挤出机中在65℃熔融混合,得到着色剂C.I.溶剂红207含量为10wt%的色浆。Add the colorant C.I. solvent red 207 and polytetramethylene glycol with a molecular weight of 4000 to a screw extruder at a weight ratio of 10:90 and melt and mix at 65°C to obtain a color paste with a colorant C.I. solvent red 207 content of 10 wt%. .

向来自酯化系统的聚合度为3的对苯二甲酸丁二醇酯低聚物中注入相当于其质量20wt%的上述色浆和0.1wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为240℃、反应时间为60min,得到特性粘度为0.40dL/g的着色预聚物。Inject the above-mentioned color paste and 0.1wt% titanium series catalyst equivalent to 20wt% of its mass into the butylene terephthalate oligomer with a polymerization degree of 3 from the esterification system, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 240°C and the reaction time is 60 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.40dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为250℃、反应时间为150min,得到特性粘度为1.20dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 250° C. and the reaction time is 150 minutes to obtain a colored polyester melt with an intrinsic viscosity of 1.20 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经T形截面喷丝板进行纺丝,纺丝温度为250℃、卷绕速度3200m/min,得到吸湿速干原液着色纤维预取向丝POY。将该纤维在加弹机上以600m/min的加工速度牵伸1.5倍。其中变形温度为160℃,定型温度为140℃,D/Y为1.7,得到吸湿速干原液着色纤维假捻变形丝DTY。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a T-shaped cross-section spinneret. The spinning temperature is 250°C and the winding speed is 3200m/min, and the moisture-absorbing and quick-drying stock solution colored fiber is obtained. Pre-oriented yarn POY. The fibers were drawn 1.5 times on a texturing machine at a processing speed of 600 m/min. Wherein, the deformation temperature is 160°C, the setting temperature is 140°C, and the D/Y is 1.7, so that the hygroscopic quick-drying dope dyed fiber false twist textured yarn DTY is obtained.

实施例6Example 6

将着色剂C.I.溶剂蓝102和分子量为1000聚丙二醇按照重量比15:85的比例加入到螺杆挤出机中在30℃熔融混合,得到着色剂C.I.溶剂蓝102含量为15wt%的色浆。Add colorant C.I. solvent blue 102 and polypropylene glycol with a molecular weight of 1000 to a screw extruder at a weight ratio of 15:85 and melt and mix at 30° C. to obtain a colorant C.I. solvent blue 102 with a content of 15wt%.

向来自酯化系统的聚合度为3的对苯二甲酸丙二醇酯低聚物中注入相当于其质量10wt%的上述色浆和0.15wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为235℃、反应时间为90min,得到特性粘度为0.30dL/g的着色预聚物。Inject the propylene glycol terephthalate oligomer with a polymerization degree of 3 from the esterification system into the above-mentioned color paste equivalent to 10 wt% of its mass and 0.15 wt% of the titanium-based catalyst, and the materials are mixed by a high-shear homogenizing pump After uniformity, enter the precondensation system for precondensation reaction. The precondensation reaction temperature is 235° C. and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.30 dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为245℃、反应时间为120min,得到特性粘度为1.05dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 245° C. and the reaction time is 120 minutes to obtain a colored polyester melt with an intrinsic viscosity of 1.05 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经T形截面喷丝板进行纺丝,纺丝温度为235℃、卷绕速度2800m/min,得到吸湿速干原液着色纤维预取向丝POY。将该纤维在加弹机上以500m/min的加工速度牵伸1.8倍。其中变形温度为130℃,定型温度为110℃,D/Y为2.5,得到吸湿速干原液着色纤维假捻变形丝DTY。The above-mentioned colored polyester melt is filtered by a melt filter and enters the spinning box to be spun through a T-shaped cross-section spinneret. The spinning temperature is 235°C and the winding speed is 2800m/min, and the moisture-absorbing and quick-drying stock solution colored fiber is obtained. Pre-oriented yarn POY. The fibers were drawn 1.8 times on a texturing machine at a processing speed of 500 m/min. Wherein the deformation temperature is 130°C, the setting temperature is 110°C, and the D/Y is 2.5 to obtain the hygroscopic quick-drying dope dyed fiber false twist textured yarn DTY.

实施例7Example 7

将着色剂C.I.溶剂黑27和分子量为10000聚乙二醇酯按照重量比60:40的比例加入到螺杆挤出机中在150℃熔融混合,得到着色剂C.I.溶剂黑27含量为60wt%的色浆。Add colorant C.I. solvent black 27 and polyethylene glycol ester with a molecular weight of 10,000 to a screw extruder at a weight ratio of 60:40 and melt and mix at 150° C. to obtain a colorant with a content of 60 wt % of colorant C.I. solvent black 27 pulp.

向来自酯化系统的聚合度为8的对苯二甲酸乙二醇酯低聚物中注入相当于其质量20wt%的上述色浆和0.08wt%的锗系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为265℃、反应时间为90min,得到特性粘度为0.15dL/g的着色预聚物。Inject the ethylene terephthalate oligomer with a degree of polymerization of 8 from the esterification system into the above-mentioned color paste equivalent to 20 wt% of its mass and 0.08 wt% of a germanium-based catalyst, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 265°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.15dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为270℃、反应时间为60min,得到特性粘度为0.50dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 270° C. and the reaction time is 60 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.50 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经五叶形截面喷丝板进行纺丝,纺丝温度为275℃、卷绕速度800m/min,得到吸湿速干原液着色纤维未牵伸丝。然后在60℃进行一级牵伸,牵伸倍数3.5倍,120℃进行二级牵伸,牵伸倍数1.2倍,之后将纤维进行卷曲,卷曲温度90℃。然后在130℃进行热定型15分钟。将定型后的纤维在切断机上切短、打包后得到吸湿速干原液着色纤维短纤维。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a spinneret with a five-leaf cross section. Fiber undrawn filaments. Then carry out primary drawing at 60°C with a draw ratio of 3.5 times, perform secondary drawing at 120°C with a draw ratio of 1.2 times, and then crimp the fibers at a curling temperature of 90°C. Heat setting was then carried out at 130° C. for 15 minutes. The shaped fibers are cut short on a cutting machine and packed to obtain hygroscopic and quick-drying stock solution colored short fibers.

实施例8Example 8

将着色剂C.I.溶剂红155和分子量为4000聚丁二醇按照重量比50:50的比例加入到螺杆挤出机中在80℃熔融混合,得到着色剂C.I.溶剂红155含量为50wt%的色浆。Add colorant C.I. solvent red 155 and polytetramethylene glycol with a molecular weight of 4000 to a screw extruder at a weight ratio of 50:50 and melt and mix at 80°C to obtain colorant C.I. solvent red 155 with a content of 50 wt%. .

向来自酯化系统的聚合度为5的对苯二甲酸丁二醇酯低聚物中注入相当于其质量18wt%的上述色浆和0.1wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为220℃、反应时间为90min,得到特性粘度为0.30dL/g的着色预聚物。Inject the above-mentioned color paste and 0.1wt% titanium series catalyst equivalent to 18wt% of its mass into the butylene terephthalate oligomer with a polymerization degree of 5 from the esterification system, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 220°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.30dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为230℃、反应时间为180min,得到特性粘度为0.90dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 230° C. and the reaction time is 180 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.90 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经三叶形截面喷丝板进行纺丝,纺丝温度为230℃、卷绕速度1200m/min,得到吸湿速干原液着色纤维未牵伸丝。然后在50℃进行一级牵伸,牵伸倍数3倍,100℃进行二级牵伸,牵伸倍数1.5倍,之后将纤维进行卷曲,卷曲温度60℃。然后在110℃进行热定型15分钟。将定型后的纤维在切断机上切短、打包后得到吸湿速干原液着色纤维短纤维。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a spinneret with a three-lobed cross-section. The spinning temperature is 230°C and the winding speed is 1200m/min to obtain a moisture-absorbing and quick-drying dope coloring Fiber undrawn filaments. Then, the primary drawing was carried out at 50° C. with a draw ratio of 3 times, and the secondary draft was carried out at 100° C. with a draw ratio of 1.5 times. After that, the fibers were crimped at a curling temperature of 60° C. Heat setting was then carried out at 110° C. for 15 minutes. The shaped fibers are cut short on a cutting machine and packed to obtain hygroscopic and quick-drying stock solution colored short fibers.

实施例9Example 9

将着色剂C.I.溶剂黄158和分子量为8000聚乙二醇按照重量比25:75的比例加入到螺杆挤出机中在120℃熔融混合,得到着色剂C.I.溶剂黄158含量为25wt%的色浆。The colorant C.I. Solvent Yellow 158 and polyethylene glycol with a molecular weight of 8000 are added to a screw extruder at a weight ratio of 25:75 and melted and mixed at 120°C to obtain a colorant C.I. Solvent Yellow 158 with a content of 25wt%. .

向来自酯化系统的聚合度为2的对苯二甲酸丙二醇酯低聚物中注入相当于其质量3wt%的上述色浆和0.1wt%的钛系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为250℃、反应时间为120min,得到特性粘度为0.45dL/g的着色预聚物。Inject the propylene glycol terephthalate oligomer with a polymerization degree of 2 from the esterification system into the above-mentioned color paste equivalent to 3wt% of its mass and 0.1wt% of titanium-based catalyst, and the materials are mixed by a high-shear homogenizing pump After uniformity, enter the precondensation system for precondensation reaction. The temperature of the precondensation reaction is 250° C. and the reaction time is 120 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.45 dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为255℃、反应时间为180min,得到特性粘度为1.20dL/g的着色聚酯熔体。The above-mentioned colored prepolymer was filtered through a prepolymer filter and then entered into a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature was 255° C. and the reaction time was 180 minutes to obtain a colored polyester melt with an intrinsic viscosity of 1.20 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经三叶形截面喷丝板进行纺丝,纺丝温度为250℃、卷绕速度1000m/min,得到吸湿速干原液着色纤维未牵伸丝。然后在55℃进行一级牵伸,牵伸倍数4倍,110℃进行二级牵伸,牵伸倍数1.1倍,之后将纤维进行卷曲,卷曲温度70℃。然后在120℃进行热定型15分钟。将定型后的纤维在切断机上切短、打包后得到吸湿速干原液着色纤维短纤维。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a spinneret with a three-lobed cross-section. Fiber undrawn filaments. Then, the primary drawing is carried out at 55° C. with a draw ratio of 4 times, and the secondary draft is carried out at 110° C. with a draw ratio of 1.1 times. After that, the fibers are crimped at a curling temperature of 70° C. Heat setting was then carried out at 120° C. for 15 minutes. The shaped fibers are cut short on a cutting machine and packed to obtain hygroscopic and quick-drying stock solution colored short fibers.

对比例1Comparative example 1

将着色剂C.I.溶剂红138和特性粘度为0.68dL/g的液状聚酯载体聚己二酸-1,3-丁二醇酯按照重量比40:60的比例调配成着色剂C.I.溶剂红138含量为40wt%的色浆。The colorant C.I. Solvent Red 138 and the liquid polyester carrier poly(1,3-butylene adipate) with an intrinsic viscosity of 0.68dL/g are formulated according to the weight ratio of 40:60 to form the content of the colorant C.I. Solvent Red 138 It is 40wt% color paste.

向来自终缩聚系统的特性粘度为0.67dL/g的聚对苯二甲酸乙二醇酯熔体中注入相当于其质量10wt%的上述色浆,物料经混合均匀后经熔体过滤器过滤后进入纺丝箱体经十字形截面喷丝板进行纺丝,纺丝温度为280℃、卷绕速度4800m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1900m/min,温度为70℃,热辊GR2的速度为4850m/min,温度为120℃。Inject the above-mentioned color paste equivalent to 10wt% of its mass into the polyethylene terephthalate melt with an intrinsic viscosity of 0.67dL/g from the final polycondensation system, and the material is mixed evenly and filtered through a melt filter It enters the spinning box and is spun through a cross-section spinneret at a spinning temperature of 280°C and a winding speed of 4800m/min to obtain a dope-dyed polyester fiber fully drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1900 m/min, and the temperature is 70°C, and the speed of the heat roll GR2 is 4850 m/min, and the temperature is 120°C.

对比例2Comparative example 2

将着色剂C.I.溶剂红138和特性粘度为0.68dL/g的液状聚酯载体聚己二酸-1,3-丁二醇酯按照重量比40:60的比例调配成着色剂C.I.溶剂红138含量为40wt%的色浆。The colorant C.I. Solvent Red 138 and the liquid polyester carrier poly(1,3-butylene adipate) with an intrinsic viscosity of 0.68dL/g are formulated according to the weight ratio of 40:60 to form the content of the colorant C.I. Solvent Red 138 It is 40wt% color paste.

向来自酯化系统的聚合度为5的对苯二甲酸乙二醇酯低聚物中注入相当于其质量10wt%的上述着浆和0.05wt%的锑系催化剂,物料经高剪切均化泵混合均匀后进入预缩聚系统进行预缩聚反应,预缩聚反应温度为265℃、反应时间为90min,得到特性粘度为0.28dL/g的着色预聚物。The ethylene terephthalate oligomer with a polymerization degree of 5 from the esterification system is injected with the above-mentioned slurry and 0.05 wt% antimony catalyst equivalent to 10 wt% of its mass, and the material is homogenized by high shear After the pump is mixed evenly, it enters the pre-condensation system for pre-condensation reaction. The temperature of the pre-condensation reaction is 265°C and the reaction time is 90 minutes to obtain a colored prepolymer with an intrinsic viscosity of 0.28dL/g.

上述着色预聚物经预聚物过滤器过滤后进入终缩聚系统进行终缩聚反应,终缩聚反应温度为270℃、反应时间为240min,得到特性粘度为0.67dL/g的着色聚酯熔体。The above-mentioned colored prepolymer is filtered through a prepolymer filter and enters a final polycondensation system for final polycondensation reaction. The final polycondensation reaction temperature is 270° C. and the reaction time is 240 minutes to obtain a colored polyester melt with an intrinsic viscosity of 0.67 dL/g.

上述着色聚酯熔体经熔体过滤器过滤后进入纺丝箱体经十字形截面喷丝板进行纺丝,纺丝温度为280℃、卷绕速度4800m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1900m/min,温度为70℃,热辊GR2的速度为4850m/min,温度为120℃。The above-mentioned colored polyester melt is filtered by a melt filter and then enters the spinning box and is spun through a cross-section spinneret at a spinning temperature of 280°C and a winding speed of 4800m/min. Drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1900 m/min, and the temperature is 70°C, and the speed of the heat roll GR2 is 4850 m/min, and the temperature is 120°C.

对比例3Comparative example 3

将着色剂C.I.溶剂红138和分子量为4000聚乙二醇按照重量比40:60的比例加入到螺杆挤出机中在80℃熔融混合,得到着色剂C.I.溶剂红138含量为40wt%的色浆。The colorant C.I. Solvent Red 138 and polyethylene glycol with a molecular weight of 4000 are added to a screw extruder at a weight ratio of 40:60 and melted and mixed at 80°C to obtain a colorant C.I. Solvent Red 138 with a content of 40wt%. .

向来自终缩聚系统的特性粘度为0.67dL/g的聚对苯二甲酸乙二醇酯熔体中注入相当于其质量10wt%的上述色浆,物料经混合均匀后经熔体过滤器过滤后进入纺丝箱体经十字形截面喷丝板进行纺丝,纺丝温度为280℃、卷绕速度4800m/min,得到原液着色聚酯纤维全拉伸丝FDY。其中,热辊GR1的速度1900m/min,温度为70℃,热辊GR2的速度为4850m/min,温度为120℃。Inject the above-mentioned color paste equivalent to 10wt% of its mass into the polyethylene terephthalate melt with an intrinsic viscosity of 0.67dL/g from the final polycondensation system, and the material is mixed evenly and filtered through a melt filter It enters the spinning box and is spun through a cross-section spinneret at a spinning temperature of 280°C and a winding speed of 4800m/min to obtain a dope-dyed polyester fiber fully drawn yarn FDY. Among them, the speed of the heat roll GR1 is 1900 m/min, and the temperature is 70°C, and the speed of the heat roll GR2 is 4850 m/min, and the temperature is 120°C.

试验例1Test example 1

采用如下测试方法对吸湿速干原液着色纤维进行性能表征测试:Use the following test methods to perform performance characterization tests on moisture-absorbing and quick-drying dope dyed fibers:

特性粘度η(dL/g),测试方法:参照GB/T 14190-2008。Intrinsic viscosity η (dL/g), test method: refer to GB/T 14190-2008.

线密度(dtex),测试方法:短纤维参照GB/T 14335-2008,长丝参照GB/T14343-2008;Linear density (dtex), test method: refer to GB/T 14335-2008 for short fibers, and refer to GB/T14343-2008 for filaments;

断裂强度(cN/dtex)和断裂伸长(%),测试方法:短纤维参照GB/T 14337-2008,长丝参照GB/T14344-2008;Breaking strength (cN/dtex) and elongation at break (%), test method: refer to GB/T 14337-2008 for short fibers, and refer to GB/T14344-2008 for filaments;

色泽均匀度(灰卡)(级)测试方法:参照GB/T 6508-2001。Color uniformity (gray card) (grade) test method: refer to GB/T 6508-2001.

着色剂含量(wt%)测试方法:参照GB/T 9337-2009Colorant content (wt%) test method: refer to GB/T 9337-2009

滴水扩散时间(s)测试方法:参照GB/T 21655.1-2008Drip diffusion time (s) test method: refer to GB/T 21655.1-2008

蒸发速率(g/h)测试方法:参照GB/T 21655.1-2008Evaporation rate (g/h) test method: refer to GB/T 21655.1-2008

耐皂洗色牢度(级)测试方法:参照GB/T 3921-2008Test method for color fastness to soaping (grade): refer to GB/T 3921-2008

对上述实施例1~9和对比例1~3中制备的吸湿速干原液着色纤维进行性能表征测试,测试结果如表1所示:Performance characterization tests were performed on the moisture-absorbing and quick-drying stock solution colored fibers prepared in the above-mentioned Examples 1-9 and Comparative Examples 1-3, and the test results are shown in Table 1:

表1实施例1~9和对比例1~3中制备的吸湿速干原液着色纤维性能测试结果The performance test results of the moisture-absorbing and quick-drying stock solution dyed fibers prepared in Table 1 Examples 1-9 and Comparative Examples 1-3

由表1可知,对比例1~3采用了与实施例1类似的方法进行制备吸湿速干原液着色纤维,其不同点在于,对比例1中没有对着色剂和亲水改性剂进行螺杆挤出熔融,且之后的步骤中没有采用色浆与聚酯低聚物进行预聚的工艺;对比例2中没有对着色剂和亲水改性剂进行螺杆挤出熔融,之后的步骤中采用了色浆与聚酯低聚物进行预聚的工艺;对比例2中对着色剂和亲水改性剂进行了螺杆挤出熔融,但在之后的步骤中没有采用色浆与聚酯低聚物进行预聚的工艺;由测试结果可知,没有对着色剂和亲水改性剂进行螺杆挤出熔融的对比例1和对比例2在着色剂含量、色泽均匀度以及耐皂洗色牢度三个方面均不如实施例1,并且力学性能和吸湿速干性能也不如实施例1;而没有采用色浆与聚酯低聚物进行预聚的工艺的对比例2和对比例3在断裂伸长、断裂强度、滴水扩散时间和蒸发速率方面均不如实施例1,并且色泽和色牢度方面也不如实施例1。综上可知,本发明在制备吸湿速干原液着色纤维的过程中,着色剂与亲水改性剂进行双螺杆挤出熔融的工艺和色浆与聚酯低聚物进行预聚的工艺起到了协同作用,使得纤维制品色泽均匀、色牢度和吸湿速干性能优异,且具有良好的舒适性。It can be seen from Table 1 that Comparative Examples 1-3 adopted a method similar to that of Example 1 to prepare moisture-absorbing and quick-drying stock solution colored fibers, the difference being that the colorant and hydrophilic modifier were not screw extruded melted, and did not adopt the process of prepolymerization of color paste and polyester oligomer in the subsequent steps; colorant and hydrophilic modifier were not carried out screw extrusion melting in the comparative example 2, adopted in the following steps The process of prepolymerization of colorant and polyester oligomer; in Comparative Example 2, the colorant and hydrophilic modifier were melted by screw extrusion, but no colorant and polyester oligomer were used in the subsequent steps Carry out the technology of prepolymerization; Can know by test result, do not carry out the comparative example 1 and the comparative example 2 that colorant and hydrophilic modifier are melted by screw extruding in colorant content, color and luster uniformity and resistance to soaping color fastness three All aspects are not as good as Example 1, and the mechanical properties and moisture absorption and quick-drying properties are not as good as Example 1; and Comparative Example 2 and Comparative Example 3 that do not use the process of prepolymerizing the color paste and polyester oligomers have elongation at break , breaking strength, drip diffusion time and evaporation rate are not as good as Example 1, and the color and color fastness are also not as good as Example 1. In summary, in the process of preparing the moisture-absorbing quick-drying stock solution colored fiber, the process of twin-screw extrusion melting of the colorant and the hydrophilic modifier and the prepolymerization of the colorant and the polyester oligomer have played an important role. The synergistic effect makes the fiber products have uniform color, excellent color fastness, moisture absorption and quick-drying performance, and good comfort.

进一步分析实施例1~3,其中实施例2的滴水扩散时间最短,蒸发速率最高,分析原因是其中亲水改性剂的含量较高,本发明中色浆的使用量以及其中的亲水改性剂含量对纤维产品的吸湿速干效果起到了关键的作用。Further analysis of Examples 1 to 3, wherein the dripping diffusion time of Example 2 is the shortest, and the evaporation rate is the highest. The content of the additive plays a key role in the moisture absorption and quick-drying effect of the fiber product.

进一步分析实施例7~9,实施例8和实施例7在亲水改性剂含量相似的情况下,实施例8的滴水扩散时间大大短于实施例7,可见聚合温度和时间对原液着色纤维产品的吸湿速干性能也起到了关键的作用。Further analysis of Examples 7 to 9, Example 8 and Example 7, when the content of the hydrophilic modifier is similar, the drip diffusion time of Example 8 is much shorter than that of Example 7, it can be seen that the polymerization temperature and time have a great impact on the dope dyed fiber The moisture absorption and quick drying performance of the product also plays a key role.

再进一步分析实施例1~9,可知其断裂伸长随亲水改性剂的聚合度整体升高而提高,可见亲水改性剂通过预缩聚反应进入聚酯低聚物主链的过程改变了纤维的断裂伸长率,亲水改性剂的聚合度也对原液着色纤维产品的力学性能也起到了关键的作用。Further analysis of Examples 1 to 9 shows that the elongation at break increases with the overall increase of the degree of polymerization of the hydrophilic modifier. It can be seen that the process of the hydrophilic modifier entering the main chain of the polyester oligomer through the precondensation reaction changes. The elongation at break of the fiber is determined, and the degree of polymerization of the hydrophilic modifier also plays a key role in the mechanical properties of the dope dyed fiber product.

综上所述,本发明使用亲水改性剂聚亚烷基二醇作为酯溶性着色剂载体配制色浆,通过采用色浆聚酯低聚物管线在线添加工艺,聚亚烷基二醇在缩聚系统中可经过与聚酯低聚物之间的共缩聚反应嵌入聚酯分子主链中,有效解决了聚亚烷基二醇与聚酯的相容性问题,使制备的着色聚酯熔体具有良好的纺丝性能,所纺制的原液着色纤维色泽均匀,色牢度高。同时,将亲水性聚亚烷基二醇链段引入到聚酯分子主链中,使纺制的原液着色纤维表面性质由疏水性变为亲水性,具有对水或水汽的浸润或吸湿能力,结合纤维截面异型化控制,纤维吸收的水分再经异型纤维原纤间的微细沟槽和织物纤维纱线间的孔洞缝隙经芯吸、传导迅速迁移至织物的表面并发散至外层空间,从而达到吸湿速干的效果。In summary, the present invention uses the hydrophilic modifier polyalkylene glycol as the ester-soluble colorant carrier to prepare the color paste, and by adopting the on-line addition process of the color paste polyester oligomer pipeline, the polyalkylene glycol is In the polycondensation system, it can be embedded in the main chain of polyester molecules through the co-condensation reaction with polyester oligomers, which effectively solves the compatibility problem between polyalkylene glycol and polyester, and makes the prepared colored polyester melt The body has good spinning performance, and the spun dope dyed fiber has uniform color and high color fastness. At the same time, the hydrophilic polyalkylene glycol segment is introduced into the main chain of the polyester molecule, so that the surface properties of the spun dope dyed fiber change from hydrophobic to hydrophilic, and have the ability to infiltrate or absorb water or water vapor. Ability, combined with the control of fiber cross-section profiled, the moisture absorbed by the fiber quickly migrates to the surface of the fabric through the micro-grooves between the profiled fiber fibrils and the holes and gaps between the fabric fiber yarns through wicking and conduction, and then spreads to the outer space , so as to achieve the effect of moisture absorption and quick drying.

其中,亲水改性剂的聚合度和含量,预聚反应和缩聚反应的温度和时间均对纤维产品的性质起到了关键的作用。Among them, the polymerization degree and content of the hydrophilic modifier, the temperature and time of the prepolymerization reaction and polycondensation reaction all play a key role in the properties of the fiber product.

以上仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of preparation method of absorbing fast-drying original liquid coloring fiber, it is characterised in that comprise the following steps:
(1) colouring agent, hydrophilic modifier are fed into screw extruder, mill base is obtained through screw extruder melting mixing, wherein The content of toner is 5~60wt%;
(2) will be prepared in step (1) mill base online injection polyester oligomeric conduit and with the degree of polymerization from esterification system Enter precondensation system after dynamic mixer is well mixed for 1~8 polyester oligomer and carry out prepolymerization reaction, obtaining viscosity is 0.15~0.45dL/g colours prepolymer;
(3) the coloring prepolymer that step (2) is prepared is entered into the poly- system of final minification after the filtering of prepolymer filter to carry out eventually Polycondensation reaction, it is 0.50~1.20dL/g pigmented polyester melts to obtain viscosity;
(4) pigmented polyester melt is prepared in step (3) and enters spinning manifold after fondant filter filters through abnormity section Face spinneret spinning moulding, obtain absorbing fast-drying original liquid coloring fiber.
A kind of 2. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that described Toner is ester soluble dye.
A kind of 3. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that the parent Water modifying agent is the PAG of 1000~10000 molecular weight.
A kind of 4. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that the contracting The addition of catalyst is 0.003~0.2wt% of polyester oligomeric amount of substance used by poly- reaction, and the catalyst is antimony system At least one of catalyst, Titanium series catalyst and germanium series catalysts.
5. a kind of preparation method of absorbing fast-drying original liquid coloring fiber according to any one of claim 1~10, its feature It is, in step (1), the screw extruder melt mix temperature is 30~150 DEG C, preferably 60~120 DEG C.
A kind of 6. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that step (2) in, the mill base online injection amount is 3~20wt% of polyester oligomeric amount of substance.
A kind of 7. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that step (2) in, the reaction temperature of the prepolymerization reaction is 220~280 DEG C, and the reaction time is 40~120min, preferable reaction temperature For 235~265 DEG C, the reaction time is 60~90min.
A kind of 8. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that step (3) in, the reaction temperature of the final polycondensation reaction is 230~285 DEG C, and the reaction time is 60~240min, preferable reaction temperature For 245~270 DEG C, the reaction time is 120~180min.
A kind of 9. preparation method of absorbing fast-drying original liquid coloring fiber according to claim 1, it is characterised in that step (4) in, the spinning temperature of the absorbing fast-drying original liquid coloring fiber is 230~285 DEG C.
10. absorbing fast-drying original liquid coloring polyester fiber made of a kind of preparation method described in claim 1~9 any one, Characterized in that, the colorant content of the absorbing fast-drying original liquid coloring fiber is 0.3~10.0wt%, color uniformity 3 ~5 grades, diffusion time of dripping is 0.1~3s, and evaporation rate is 0.18~1.30g/h, 3~5 grades of fastness to soaping.
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