CN114959942A - Antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn and preparation method thereof - Google Patents
Antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn and preparation method thereof Download PDFInfo
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- CN114959942A CN114959942A CN202210833106.4A CN202210833106A CN114959942A CN 114959942 A CN114959942 A CN 114959942A CN 202210833106 A CN202210833106 A CN 202210833106A CN 114959942 A CN114959942 A CN 114959942A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention discloses an antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn. The invention also discloses a preparation method of the antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn, which comprises the following steps: (1) dispersing nano silicon dioxide in an ethanol aqueous solution, modifying by using 3-aminopropyltriethoxysilane to obtain nano silicon dioxide particles with positive charges, and loading in a graphene oxide lamella by electrostatic self-assembly to obtain dispersed silicon dioxide; (2) adding the dispersed silicon dioxide into a polyester chip, uniformly mixing, drying by hot air, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt; (3) metering the dispersed silicon dioxide/polyester composite melt by a metering pump, extruding the melt into a spinning box body through a spinneret plate, cooling, bundling, oiling, drafting and winding; (4) and (4) carrying out post-treatment on the spinning cake.
Description
Technical Field
The invention relates to the technical field of heavy denier polyester drawn yarns, in particular to an antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn and a preparation method thereof.
Background
Polyester fibers are basic raw materials for textiles, wherein the polyester fibers are represented by PET (polyethylene terephthalate), and the yield of China in 2020 exceeds 5000 ten thousand tons, so that the polyester fibers are in an absolutely leading position. The polyester fiber has a series of excellent performances of high breaking strength and elastic modulus, moderate rebound resilience, excellent heat setting, good heat resistance and light resistance, good acid resistance, alkali resistance and corrosion resistance and the like, and the fabric has the advantages of crease resistance, good stiffness and the like, and is widely applied to the fields of clothing, home textiles and the like.
The prior coarse denier porous yarn, such as 150D/144F, 150D/288F, 150D/384F and the like, has large total fiber number, large fiber F number, soft hand feeling, good fabric drapability, good heat insulation and hygroscopicity and high additional value, can comprehensively replace high-count cotton and wool materials, is widely applied to high-grade fabrics and clothing textile materials, and continuously expands in the aspects of home textile and industrial application along with the improvement of the subsequent processing technology, thereby having wide market prospect.
At present, the linear density of the polyester drawn yarns in the chemical fiber industry can only reach 300 denier at the thickest. However, the contact heating space between the heavy denier polyester fiber and the hot roller is small, the heating time is short, the heating is not easy to be uniform, the surface area of the heavy denier fiber is large, the spinning, drafting and winding tension is large, the yarn breakage and hairiness generation are easy, and meanwhile, the moisture permeability effect is poor, so that a solution is needed urgently.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an antistatic anti-pilling moisture-permeable heavy denier polyester drawn yarn and a preparation method thereof.
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing nano silicon dioxide in an ethanol aqueous solution, modifying by using 3-aminopropyltriethoxysilane to obtain nano silicon dioxide particles with positive charges, and loading in a graphene oxide lamella by electrostatic self-assembly to obtain dispersed silicon dioxide;
(2) adding the dispersed silicon dioxide into a polyester chip, uniformly mixing, drying by hot air, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) metering the dispersed silicon dioxide/polyester composite melt by a metering pump, extruding the melt into a spinning box body through a spinneret plate, cooling, bundling, oiling, drafting and winding;
(4) and (4) carrying out post-treatment on the spinning cake.
Preferably, in the step (1), the dispersed silica is prepared by the following specific steps: dispersing nano silicon dioxide in an ethanol water solution, carrying out ultrasonic treatment for 1-2h, adding 3-aminopropyltriethoxysilane, reacting for 10-20h at 80-90 ℃, adding graphene oxide, carrying out ultrasonic treatment for 1-2h, wherein the ultrasonic frequency is 10-20kHz, and the ultrasonic power is 300-400W, centrifuging, washing, vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m.
The method comprises the steps of dispersing nano silicon dioxide in an ethanol water solution, modifying by using 3-aminopropyltriethoxysilane to obtain nano silicon dioxide particles with positive charges, loading the nano silicon dioxide particles in a graphene oxide lamella through electrostatic self-assembly, and forming dispersed silicon dioxide through chemical bonding.
More preferably, the mass ratio of the nano silicon dioxide, the 3-aminopropyltriethoxysilane and the graphene oxide is 5-15: 1-2: 1-3.
More preferably, the washing is performed 1 to 3 times with an ethanol aqueous solution having a volume fraction of 60 to 80%.
Preferably, in the step (2), the mass ratio of the dispersed silica to the polyester chip is 5-10: 100.
preferably, in the step (2), the hot air drying temperature is 160-.
Preferably, in step (3), the spinning box temperature is 280-290 ℃.
Preferably, in the step (3), the spinning box performs spinning, then is soaked into an ethylenediamine disuccinic acid aqueous solution, is subjected to microwave radiation treatment for 10-30min, and is washed at the irradiation temperature of 40-60 ℃.
More preferably, the mass fraction of the ethylenediamine disuccinic acid aqueous solution is 1 to 5%.
More preferably, the washing is performed 1-3 times with clean water.
Preferably, in the step (3), hot roll drawing setting is adopted, the drawing temperature is 80-90 ℃, the drawing multiple is 2-4, and the setting temperature is 160-170 ℃.
Preferably, in step (3), the winding speed is 4000 m/min.
An antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn is prepared by the preparation method of the antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn.
Preferably, the linear density of the antistatic pilling-resistant moisture-permeable heavy denier polyester drawn yarn is 300 denier.
The technical effects of the invention are as follows:
the invention adopts dispersed silicon dioxide to be added into polyester chips for drying, the dispersed silicon dioxide has extremely high dispersion uniformity in polyester, can effectively promote the crystallization of polyester, accelerate the crystallization speed and effectively provide the thermodynamic stability (the addition of a qualifier is recommended to promote the crystallization of polyester fibers);
under the action of ethylenediamine disuccinic acid, the dispersed silicon dioxide/polyester composite melt is subjected to irradiation treatment, graphene oxide in the dispersed silicon dioxide/polyester composite melt is reduced, the interlayer spacing of graphene can be further increased, the outer surface of the obtained polyester fiber blank is provided with a large number of cracks and a lamellar structure to form a plurality of differential capillary effects, even when the fibers are closely arranged, the pores among the fibers can still become channels for transmitting moisture, and the moisture absorption and sweat releasing performance of the fibers is effectively enhanced.
The antistatic anti-pilling moisture permeable coarse denier polyester with the fineness of 300 deniers, which is obtained by the invention, has the advantages of good crystallinity, regular arrangement of molecules in the fiber, excellent mechanical property, capability of effectively ensuring that the breaking strength and the initial modulus of the fiber are at higher levels on the premise of reducing the brittleness of the fiber, unique handfeel of woven fabrics, and differentiation from the existing polyester fabrics. And because the obtained heavy denier polyester has better toughness, the high initial modulus can be ensured, the fibers are not easy to entangle with each other, and the anti-pilling degree is high.
Drawings
FIG. 1 is a graph comparing the breaking strength, elongation at break and initial modulus of the coarse denier polyester fibers obtained in example 5 and comparative examples 1-2.
Fig. 2 is a graph comparing the moisture regain of the coarse denier polyester fibers obtained in example 5 and comparative examples 1-2.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example 1
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing 5kg of nano silicon dioxide in 20kg of 40% ethanol aqueous solution with volume fraction, carrying out ultrasonic treatment for 1h, adding 1kg of 3-aminopropyltriethoxysilane, reacting for 10h at 80 ℃, adding 1kg of graphene oxide, carrying out ultrasonic treatment for 1h with the ultrasonic frequency of 10kHz and the ultrasonic power of 300W, centrifuging, washing for 1 time by adopting 60% ethanol aqueous solution with volume fraction, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 5kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying with hot air at 160 ℃ for 5h, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 280 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 1%, performing microwave radiation treatment for 10min at the irradiation temperature of 40 ℃, washing the melt for 1 time by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at the stretching temperature of 80 ℃ and the drafting multiple of 2, and then shaping by a shaping hot roller at the temperature of 160 ℃; then winding and forming are carried out, the winding tension is 2.2cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
Example 2
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing 15kg of nano silicon dioxide in 40kg of ethanol aqueous solution with volume fraction of 60%, carrying out ultrasonic treatment for 2h, adding 2kg of 3-aminopropyltriethoxysilane, reacting for 20h at 90 ℃, adding 3kg of graphene oxide, carrying out ultrasonic treatment for 2h, wherein the ultrasonic frequency is 20kHz, the ultrasonic power is 400W, centrifuging, washing for 2 times by adopting the ethanol aqueous solution with volume fraction of 80%, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 10kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying with hot air at 170 ℃ for 15h, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box, wherein the temperature of the spinning box is 290 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 5%, performing microwave radiation treatment for 30min, wherein the irradiation temperature is 60 ℃, washing the melt for 2 times by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at the stretching temperature of 90 ℃ and the drafting multiple of 4, and then shaping by a shaping hot roller at the temperature of 170 ℃; then winding and forming are carried out, the winding tension is 2.5cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
Example 3
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing 8kg of nano silicon dioxide in 35kg of 45% ethanol aqueous solution with volume fraction, carrying out ultrasonic treatment for 1.7h, adding 1.2kg of 3-aminopropyltriethoxysilane, reacting for 13h at 88 ℃, adding 2.5kg of graphene oxide, carrying out ultrasonic treatment for 1.3h, wherein the ultrasonic frequency is 18kHz, the ultrasonic power is 330W, centrifuging, washing for 3 times by using 75% ethanol aqueous solution with volume fraction, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 6kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying by hot air at 166 ℃ for 8h, extruding by a screw rod, and mixing by a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 288 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylene diamine disuccinic acid aqueous solution with the mass fraction of 2%, carrying out microwave radiation treatment for 25min at the irradiation temperature of 45 ℃, washing the melt for 3 times by water, and carrying out vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at 88 ℃ and the drafting multiple of 2.5, and then shaping by a shaping hot roller at 166 ℃; then winding and forming are carried out, the winding tension is 2.3cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
Example 4
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing 12kg of nano silicon dioxide in 25kg of ethanol aqueous solution with volume fraction of 55%, carrying out ultrasonic treatment for 1.3h, adding 1.8kg of 3-aminopropyltriethoxysilane, reacting for 17h at 82 ℃, adding 1.5kg of graphene oxide, carrying out ultrasonic treatment for 1.7h, wherein the ultrasonic frequency is 12kHz, the ultrasonic power is 370W, centrifuging, washing for 3 times by adopting ethanol aqueous solution with volume fraction of 65%, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 8kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying by hot air at 164 ℃ for 12h, extruding by a screw rod, and mixing by a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 282 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 4%, performing microwave radiation treatment for 15min at the irradiation temperature of 55 ℃, washing the melt for 3 times by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at the stretching temperature of 82 ℃ and the drafting multiple of 3.5, and then shaping by a shaping hot roller at 164 ℃; then winding and forming are carried out, the winding tension is 2.4cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
Example 5
The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn comprises the following steps:
(1) dispersing 10kg of nano silicon dioxide in 30kg of ethanol aqueous solution with volume fraction of 50%, carrying out ultrasonic treatment for 1.5h, adding 1.5kg of 3-aminopropyltriethoxysilane, reacting for 15h at 85 ℃, adding 2kg of graphene oxide, carrying out ultrasonic treatment for 1.5h, wherein the ultrasonic frequency is 15kHz, the ultrasonic power is 350W, centrifuging, washing for 3 times by adopting ethanol aqueous solution with volume fraction of 70%, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 7kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying with hot air at 165 ℃ for 10h, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 285 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 3%, performing microwave radiation treatment for 20min at the irradiation temperature of 50 ℃, washing the melt for 3 times by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at the stretching temperature of 85 ℃ and the drafting multiple of 3, and then shaping by a shaping hot roller at 165 ℃; then winding and forming are carried out, the winding tension is 2.35cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
Comparative example 1
The preparation method of the heavy denier polyester drawn yarn comprises the following steps:
(1) adding 7kg of nano silicon dioxide into 100kg of polyester chips, uniformly mixing, drying in hot air at 165 ℃ for 10h, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(2) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 285 ℃, metering the melt by a metering pump, feeding the melt into a spinneret plate of a spinning assembly, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 3%, performing microwave radiation treatment for 20min at the irradiation temperature of 50 ℃, washing the melt for 3 times by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a stretching hot roller at the stretching temperature of 85 ℃ and the drafting multiple of 3, and then shaping by a shaping hot roller at 165 ℃; then winding and forming, wherein the winding tension is 2.35cN, and the winding speed is 4000 m/min;
(3) and (4) carrying out post-treatment on the spinning cake.
Comparative example 2
The preparation method of the heavy denier polyester drawn yarn comprises the following steps:
(1) dispersing 10kg of nano silicon dioxide in 30kg of ethanol aqueous solution with volume fraction of 50%, carrying out ultrasonic treatment for 1.5h, adding 2kg of graphene oxide, carrying out ultrasonic treatment for 1.5h, wherein the ultrasonic frequency is 15kHz, the ultrasonic power is 350W, centrifuging, carrying out vacuum drying, and carrying out ball milling to obtain powdery dispersed silicon dioxide with the particle size of 10-100 mu m;
(2) adding 7kg of dispersed silicon dioxide into 100kg of polyester chips, uniformly mixing, drying with hot air at 165 ℃ for 10h, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) feeding the dispersed silicon dioxide/polyester composite melt into a spinning box with the temperature of 285 ℃, feeding the melt into a spinneret plate of a spinning assembly after metering by a metering pump, soaking the melt into an ethylenediamine disuccinic acid aqueous solution with the mass fraction of 3%, performing microwave radiation treatment for 20min at the irradiation temperature of 50 ℃, washing the melt for 3 times by water, and performing vacuum freeze drying to obtain a polyester fiber blank;
bundling and oiling, drafting by a drawing hot roller at the drawing temperature of 85 ℃ and the drawing multiple of 3, and then shaping by a shaping hot roller at 165 ℃; then winding and forming are carried out, the winding tension is 2.35cN, and the winding speed is 4000 m/min;
(4) and (4) carrying out post-treatment on the spinning cake.
The deniers of the heavy denier terylene obtained in the example 5 and the comparative examples 1-2 are 300 plus or minus 10 deniers, and the deniers of the heavy denier terylene are basically consistent with those of the heavy denier terylene.
The coarse denier polyester fibers obtained in example 5 and comparative examples 1-2 were tested by a DXLL-20000 type dynamometer according to the test method for tensile properties of GB/T14337-2008 chemical fiber staple fibers, the test nip distance was 150mm, the lowering speed of the cross bar was 200mm/min, and the breaking strength, modulus and elongation at break of each group of the test specimens were measured.
As shown in fig. 1, the coarse denier polyester obtained in example 5 has the highest breaking strength, elongation at break and initial modulus.
The applicant believes that: the dispersion uniformity of the dispersed silicon dioxide in the polyester chip is extremely high, the polyester crystallization is effectively promoted, the internal crystallinity of the dispersed silicon dioxide is higher than that of a comparative example, the molecules in the fiber are arranged in order, the pores among the fibers are few and small, the intermolecular bonding force in the fiber is strong, the polymerization degree among the fibers is high, so that the breaking strength and the initial modulus of the fiber are higher, and under the action of ethylenediamine disuccinic acid, the dispersed silicon dioxide/polyester composite melt is subjected to irradiation treatment to reduce graphene oxide in the dispersed silicon dioxide/polyester composite melt, so that the interlayer spacing of the graphene can be further increased, the breaking elongation of the fiber is effectively improved, and the toughness of the fiber is maintained.
After the coarse denier polyester fibers obtained in example 5 and comparative examples 1-2 were subjected to humidity conditioning for 24 hours under standard atmospheric conditions for testing, the wet weight of the sample fibers was weighed with an electronic balance to the nearest 0.01 g. The oven was then opened, the oven temperature was set to 105 ℃, and the sample fibers were placed in the oven until dried. And taking out the sample every 10min, weighing the fiber, taking the weighed sample fiber of the next time as the drying mass when the mass difference of the samples weighed twice continuously is equal to or less than 0.05 percent of the mass of the sample weighed at the next time, and calculating the moisture regain of the fiber.
Actual moisture regain of sample ═ (wet weight of sample-oven dry mass of sample)/(oven dry mass of sample × 100%
As shown in fig. 2, the moisture regain of the heavy denier polyester obtained in example 5 is much greater than that of the comparative example, confirming that the heavy denier polyester obtained in the present invention does have antistatic and moisture permeable effects.
The moisture regain is an index of the degree of moisture absorption of a textile material and is the ability of the textile material to emit or absorb gaseous moisture from the air. Moisture absorption or desorption of fibers is a dynamic equilibrium process that includes both the transfer of moisture from the air to the fibers and the transfer of moisture from the fibers to the air. The moisture absorption and release capacity of the fiber not only can cause the quality of the textile raw material to change, but also has influence on the textile processing technology and the fabric comfort.
The applicant believes that: the moisture regain of the coarse denier polyester obtained in example 5 is far greater than that of a comparative example, because the invention is characterized in that under the action of ethylenediamine disuccinic acid, the dispersed silicon dioxide/polyester composite melt is subjected to irradiation treatment to reduce graphene oxide therein, so that the interlayer spacing of graphene can be further increased, the outer surface of the coarse denier polyester obtained by further drafting the obtained polyester fiber blank has a large number of cracks and lamellar structures to form a plurality of differential capillary effects, even when the fibers are closely arranged, the pores among the fibers can still become channels for transmitting moisture, and the moisture absorption and sweat releasing performance of the fibers are effectively enhanced.
Static electricity is the accumulation of surface charges on objects, and is the result of an imbalance between positive and negative charges between two objects. When the environment is too dry, static electricity is not conducted to various insulating objects and remains on the corresponding objects. The moisture regain (or moisture absorption capacity) of the coarse denier polyester obtained by the invention is improved, and the water content of the polyester is improved, so that the generation of static electricity is effectively avoided.
The coarse denier polyester fibers obtained in example 5 and comparative examples 1-2 were woven into a double-sided weave to prepare a fabric having an areal density of 325g/m 2 The thickness is 1.21 mm. According to GB/T4802.1-2008 determination of pilling performance of textile fabrics, a YG401G Martindale pilling instrument is adopted to determine each tissue, a sample is placed in standard atmosphere for humidifying for 24h and then clamped in a clamp holder, the friction frequency is set to be 50 times, the friction pressure is 160g, and the sample and the standard abrasive fabrics on a grinding table are mutually rubbed according to the motion trail of a Lisha curve. And after the friction is finished, observing the fuzzing and pilling degree of the surface of the sample in a standard light source box, and comparing the fuzzing and pilling degree with a corresponding standard sample for grading evaluation.
The anti-pilling degree of the fabric is divided into 5 grades which are 1 to 5 grades respectively, wherein the grade 1 is the worst, the pilling degree of the fabric is serious, the grade 5 is the best, and the fabric is basically unchanged after being rubbed. The fuzzing and pilling resistance of the fabric is considered to be better when the fuzzing and pilling of the fabric are respectively 3 to 4 grades.
| Group of | Pilling resistance rating |
| Example 5 | 4.5 stage |
| Comparative example 1 | Grade 3.5 |
| Comparative example 2 | Grade 3.5 |
The applicant believes that: the reason is that the coarse denier polyester obtained by the invention has better toughness, and simultaneously can ensure higher initial modulus, so that the fibers are not easy to be entangled, and the anti-pilling degree is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The preparation method of the antistatic anti-pilling moisture permeable coarse denier polyester drawn yarn is characterized by comprising the following steps of:
(1) dispersing nano silicon dioxide in an ethanol water solution, modifying by using 3-aminopropyltriethoxysilane to obtain nano silicon dioxide particles with positive charges, and loading in a graphene oxide lamella by electrostatic self-assembly to obtain dispersed silicon dioxide;
(2) adding the dispersed silicon dioxide into a polyester chip, uniformly mixing, drying by hot air, extruding by a screw rod, and mixing by using a static mixer to obtain a dispersed silicon dioxide/polyester composite melt;
(3) metering the dispersed silicon dioxide/polyester composite melt by a metering pump, extruding the melt into a spinning box body through a spinneret plate, cooling, bundling, oiling, drafting and winding;
(4) and carrying out post-treatment on the spinning cake.
2. The method for preparing the antistatic pilling-resistant moisture-permeable heavy denier polyester drawn yarn as claimed in claim 1, wherein in the step (2), the mass ratio of the dispersed silica to the polyester chips is 5-10: 100.
3. the method for preparing the antistatic pilling-resistant moisture-permeable heavy denier polyester drawn yarn as claimed in claim 1, wherein in the step (2), the hot air drying temperature is 160-170 ℃, and the hot air drying time is 5-15 h.
4. The method for preparing the antistatic pilling-resistant moisture-permeable heavy denier polyester drawn yarn as claimed in claim 1, wherein in the step (3), the temperature of the spinning box is 280-290 ℃.
5. The method for preparing the antistatic pilling-resistant moisture-permeable coarse-denier polyester drawn yarn as claimed in claim 1, wherein in the step (3), a spinning box is soaked into an ethylenediamine disuccinic acid aqueous solution after spinning, the microwave radiation treatment is carried out for 10-30min, the irradiation temperature is 40-60 ℃, and the polyester drawn yarn is washed.
6. The method for preparing the antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn as claimed in claim 5, wherein the mass fraction of the ethylenediamine disuccinic acid aqueous solution is 1-5%.
7. The method for preparing the antistatic anti-pilling moisture permeable coarse-denier polyester drawn yarn as claimed in claim 1, wherein in the step (3), hot roller drawing and shaping are adopted, the drawing temperature is 80-90 ℃, the drawing multiple is 2-4, and the shaping temperature is 160-170 ℃.
8. The method for preparing the antistatic pilling-resistant moisture-permeable heavy denier polyester drawn yarn as claimed in claim 1, wherein in the step (3), the winding speed is 4000 m/min.
9. An antistatic pilling prevention moisture permeable heavy denier polyester drawn yarn, which is characterized by being prepared by the preparation method of the antistatic pilling prevention moisture permeable heavy denier polyester drawn yarn of any one of claims 1-8.
10. The antistatic pilling prevention moisture permeable heavy denier polyester drawn yarn of claim 9, wherein the linear density of the antistatic pilling prevention moisture permeable heavy denier polyester drawn yarn is 300 denier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210833106.4A CN114959942B (en) | 2022-07-15 | 2022-07-15 | Antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn and preparation method thereof |
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| CN202210833106.4A CN114959942B (en) | 2022-07-15 | 2022-07-15 | Antistatic anti-pilling moisture permeable heavy denier polyester drawn yarn and preparation method thereof |
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| JPS63275734A (en) * | 1987-05-08 | 1988-11-14 | 東レ株式会社 | Polyester composite processed yarn |
| CN101348947A (en) * | 2008-08-18 | 2009-01-21 | 张家港市欣欣化纤有限公司 | Preparation of ultra-coarse denier lustrous terylene drawn yarn |
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