CN117626467A - High-strength regenerated irregularly-shaped large-gloss polyester fiber and preparation method thereof - Google Patents
High-strength regenerated irregularly-shaped large-gloss polyester fiber and preparation method thereof Download PDFInfo
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- CN117626467A CN117626467A CN202311704263.6A CN202311704263A CN117626467A CN 117626467 A CN117626467 A CN 117626467A CN 202311704263 A CN202311704263 A CN 202311704263A CN 117626467 A CN117626467 A CN 117626467A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 73
- 239000000835 fiber Substances 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000011858 nanopowder Substances 0.000 claims abstract description 39
- 230000002195 synergetic effect Effects 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000002791 soaking Methods 0.000 claims abstract description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 11
- 239000000047 product Substances 0.000 claims description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 claims description 9
- 229910033181 TiB2 Inorganic materials 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- KPGXRSRHYNQIFN-UHFFFAOYSA-N 2-oxoglutaric acid Chemical compound OC(=O)CCC(=O)C(O)=O KPGXRSRHYNQIFN-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 235000011164 potassium chloride Nutrition 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000012279 sodium borohydride Substances 0.000 claims description 5
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000006227 byproduct Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004744 fabric Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002932 luster Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011825 aerospace material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FJQXCDYVZAHXNS-UHFFFAOYSA-N methadone hydrochloride Chemical class Cl.C=1C=CC=CC=1C(CC(C)N(C)C)(C(=O)CC)C1=CC=CC=C1 FJQXCDYVZAHXNS-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- RGCLLPNLLBQHPF-HJWRWDBZSA-N phosphamidon Chemical compound CCN(CC)C(=O)C(\Cl)=C(/C)OP(=O)(OC)OC RGCLLPNLLBQHPF-HJWRWDBZSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Artificial Filaments (AREA)
Abstract
The invention provides a high-strength regenerated special-shaped large-gloss polyester fiber, which is prepared from the following raw materials of synergistic nano powder, finishing agent and regenerated large-gloss polyester chips. The preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber comprises the following steps: 1) After melting the regenerated large glossy polyester chip, adding synergistic nano powder, stirring and mixing uniformly at a high speed, spinning by using a spinneret plate with cross shaped holes, and cooling to room temperature by blowing to obtain fiber filaments; 2) Adding the finishing agent into water, uniformly stirring to prepare finishing agent solution, soaking fiber filaments in the finishing agent solution, drying, shaping and winding to obtain the high-strength regenerated irregularly-shaped large-gloss polyester fiber. The high-strength regenerated irregularly-shaped large-gloss polyester fiber has high strength, good wear resistance and wide application prospect.
Description
Technical Field
The invention relates to the technical field of polyester fibers, in particular to a high-strength regenerated irregularly-shaped large-gloss polyester fiber and a preparation method thereof.
Background
Polyester was invented by the uk chemist, whinfield and Dixon in 1944, and was first produced industrially in the uk, and polyester fiber was produced by dupont in 1953. The polyester fiber is used as the main textile raw material, so that the shortage situation of the natural fiber is relieved to a great extent. Polyester fibers are widely used because of their many excellent properties, especially excellent textile properties, replace natural fibers in many ways, making their development very rapid exceeding the maximum class of polyamide fibers into synthetic fibers.
The polyester fiber can be classified into a large bright type, a semi-bright type, a full-bright type according to the content of titanium dioxide in the polyester fiber. The large bright polyester fiber has the characteristics of high strength, bright color and the like, and the manufactured fabric is attractive in appearance, good in air permeability, special in visual effect and popular with people. However, as the living standard of people continuously rises, the demand for resources is gradually increased, so that the shortage phenomenon of natural resources is caused, the consumption of polyester is rapidly increased, the environmental awareness of people is gradually improved, more and more merchants start to produce regenerated polyester fibers, and in fact, the original polyester products are reprocessed, so that brand new products are generated. By the processing mode, the living environment of people is not polluted, and the recycling of resources is realized. The current regenerated high-gloss polyester is reprocessed from recycled polyester bottles, filament wastes, waste cloth and the like, belongs to waste recycling, has uneven quality price, is mainly applied to materials with low quality requirements such as cotton fiber blend materials, filling materials and the like, and has poor quality, low strength and poor hand feeling and appearance compared with the original polyester. At present, the large bright polyester fiber on the market can obtain bright luster through changing the cross section shape of the fiber, such as triangle, trilobal shape and the like, the fiber with the triangle cross section has the refraction effect similar to a prism, and the fiber and the fabric thereof have the characteristics of bright luster, strong reflection and good glittering property through the comprehensive effects of light splitting, reflection and interference, and can be applied to the fields of stage clothing, household decoration fabric, fashion fabric and the like, but the special-shaped fiber is easy to form a stress concentration source, and the fiber strength and the friction resistance are poor.
Therefore, there is still a need to develop a regenerated irregularly shaped large glossy polyester fiber with high strength and good wear resistance to meet the requirements of practical application.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the high-strength regenerated special-shaped large-gloss polyester fiber so as to better meet the requirements of practical application.
To achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a high-strength regenerated special-shaped large-gloss polyester fiber, which is prepared from the following raw materials of synergistic nano powder, finishing agent and regenerated large-gloss polyester chips.
In some embodiments of the invention, the mass ratio of the synergistic nanopowder to the recycled large glossy polyester chip is 1:10-15.
In some embodiments of the invention, the method of preparing the synergistic nanopowder comprises the steps of:
(1) Mixing an aluminum chloride solution with an ammonia water solution, reacting for 1-3 hours under the stirring condition to obtain a product, washing for 2-3 times with distilled water, drying, calcining for 1-2 hours at 800-1000 ℃, and grinding to obtain nano powder for later use;
(2) Mixing titanium dioxide powder, boron powder and salt, grinding for 20-40min, uniformly mixing, calcining for 2-4h under inert atmosphere, cooling, adding into deionized water, removing excessive reducing agent and byproducts, filtering and drying the product to obtain titanium diboride for later use;
(3) Mixing titanium diboride and nano powder, grinding for 1-2h, roasting at 600-700 ℃ for 0.5-1h, and sieving to obtain the synergistic nano powder.
In the preparation method of the synergistic nano powder, the concentration of the aluminum chloride solution in the step (1) is 0.3-0.5mol/L, the concentration of the ammonia water solution is 2-3%, and the mass ratio of the aluminum chloride solution to the ammonia water solution is 1:1-2.
In the preparation method of the synergistic nano powder, the mass ratio of the titanium dioxide powder to the boron powder in the step (2) is 2-3:1, the salt is a mixture of sodium chloride and potassium chloride, and the mass ratio of the sodium chloride to the potassium chloride is 1:1-2.
In the preparation method of the synergistic nano powder, the mass ratio of the titanium diboride to the nano powder in the step (3) is 1-2:1.
In some embodiments of the invention, the method of preparing the finish comprises the steps of:
dissolving chitosan in acetic acid solution, adding 2-oxoglutarate, reacting at constant temperature for 3-5h, then adding sodium borohydride solution, continuously reacting for 0.5-1 day, collecting the product, and drying at constant temperature to obtain white powder, namely the finishing agent.
In the preparation method of the finishing agent, the concentration of the acetic acid solution is 0.5-1%, and the mass ratio of chitosan to the acetic acid solution is 1:50-100, wherein the mass of the 2-oxoglutarate is 1-2 times of that of chitosan, the concentration of the sodium borohydride solution is 5-10%, and the mass of the sodium borohydride solution is 1-1.5 times of that of the acetic acid solution.
The invention also provides a preparation method of the high-strength regenerated special-shaped large-gloss polyester fiber, which comprises the following steps:
(1) After melting the regenerated large glossy polyester chip, adding synergistic nano powder, stirring and mixing uniformly at a high speed, spinning by using a spinneret plate with cross shaped holes, and cooling to room temperature by blowing to obtain fiber filaments;
(2) Adding the finishing agent into water, uniformly stirring to prepare finishing agent solution, soaking fiber filaments in the finishing agent solution, drying, shaping and winding to obtain the high-strength regenerated irregularly-shaped large-gloss polyester fiber.
In the preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber, the spinning temperature in the step (1) is 280-290 ℃, and the spinning speed is 800-900m/min.
In the preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber, the concentration of the finishing agent solution in the step (2) is 20-60g/L.
Compared with the prior art, the invention has the following beneficial effects:
the high-strength regenerated special-shaped large-gloss polyester fiber provided by the invention is prepared by adding the synergistic nano powder, melting the synergistic nano powder and the regenerated large-gloss polyester chip, mixing the mixture, spinning the mixture and treating the mixture by the finishing agent, and has high strength, good wear resistance and wide application prospect.
The synergistic nano powder used in the invention takes low-cost aluminum chloride as a main raw material, the prepared alpha-alumina superfine powder has hard texture, special specific surface area, pore volume and pore diameter, can eliminate the diffusion effect in pores, coats self-made titanium diboride powder on the surfaces of alpha-alumina spherical particles under mechanical grinding, well combines the alpha-alumina spherical particles through roasting, forms bridging effect of metal phases, and can strengthen the resistance of fibers to external force, thereby ensuring that the regenerated irregularly-shaped and highly-glossy polyester fibers have high strength, and simultaneously, the hard texture of the synergistic nano powder can also improve the wear resistance of the regenerated irregularly-shaped and highly-glossy polyester fibers.
In addition, the regenerated irregularly-shaped large-gloss polyester fiber is subjected to post-treatment by preparing the finishing agent, and the chitosan is modified by the 2-oxoglutarate, so that a layer of continuous film can be formed on the surface of the fabric in a covalent bond crosslinking mode, fuzz is prevented from further winding into pellets, the fabric is endowed with good fuzzing and pilling resistance, good wear resistance is achieved, and meanwhile, the strength of the polyester fiber can be further improved by matching with the synergistic nano powder, so that the performance of the prepared regenerated irregularly-shaped large-gloss polyester fiber is further improved.
Detailed Description
The invention will be described below in connection with specific embodiments. The following examples are illustrative of the present invention and are not intended to limit the present invention. Other combinations and various modifications within the spirit of the invention may be made without departing from the spirit or scope of the invention. In the following examples, the compounds and related reagents used were all commercially available, wherein titanium dioxide powder, boron powder were purchased from Tianyuan aerospace materials (Kangkou) technologies, chitosan was purchased from Henan Xinhong Tai Biotechnology, inc., and the regenerated large glossy polyester chips were purchased from Jiangsu Seen Yuan industries, inc.
Preparation of synergistic nano powder
A synergistic nano-powder, the preparation method of the synergistic nano-powder comprising the following steps:
(1) Mixing 50g of aluminum chloride solution with the concentration of 0.5mol/L with 50g of ammonia water solution with the concentration of 2%, reacting for 3 hours under stirring to obtain a product, washing with distilled water for 3 times, drying, calcining at 1000 ℃ for 1 hour, and grinding to obtain nano powder for later use;
(2) Mixing 100g of titanium dioxide powder, 50g of boron powder and 750g of salt (the mass ratio of sodium chloride to potassium chloride is 1:2), grinding for 40min, uniformly mixing, calcining for 4h under an inert atmosphere, cooling, adding into deionized water, removing excessive reducing agent and byproducts to obtain a titanium diboride product, and filtering and drying for later use;
(3) Mixing 20g of titanium diboride with 10g of nano powder, grinding for 2 hours, roasting for 1 hour at 700 ℃, and sieving to obtain the synergistic nano powder.
Preparation of finishing agent
A finish, the method of making the finish comprising the steps of:
100g of chitosan is dissolved in 5kg of acetic acid solution with the concentration of 1%, 200g of 2-oxoglutarate is added for constant temperature reaction for 5 hours, then 5kg of sodium borohydride solution with the concentration of 5% is added for continuous reaction for 1 day, the product is collected, and white powder is obtained after constant temperature drying, namely the finishing agent.
Example 1
The raw materials for preparing the high-strength regenerated special-shaped large-gloss polyester fiber comprise the following components: 150g of synergistic nano powder, 120g of finishing agent and 2000g of regenerated large bright polyester chip.
The preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber comprises the following steps:
(1) After melting the regenerated large glossy polyester chips, adding synergistic nano powder, stirring and mixing uniformly at a high speed, spinning by using a spinneret plate with cross-shaped holes, wherein the spinning temperature is 290 ℃, and the spinning speed is 800m/min, and cooling to room temperature by blowing to obtain fiber filaments;
(2) Adding the finishing agent into 2L of water, uniformly stirring to prepare finishing agent solution, soaking fiber filaments in the finishing agent solution, drying, shaping and winding to obtain the high-strength regenerated irregularly-shaped large-gloss polyester fiber.
Example 2
The raw materials for preparing the high-strength regenerated special-shaped large-gloss polyester fiber comprise the following components: 150g of synergistic nano powder, 120g of finishing agent and 2000g of regenerated large bright polyester chip.
The preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber is the same as that of the example 1.
Example 3
The raw materials of the high-strength regenerated special-shaped large-gloss polyester fiber comprise: 150g of synergistic nano powder, 120g of finishing agent and 2250g of regenerated large bright polyester chip.
The preparation method of the high-strength regenerated irregularly-shaped large-gloss polyester fiber is the same as that of the example 1.
Comparative example 1
The difference from example 1 is that: no synergistic nano powder is added.
Comparative example 2
The difference from example 1 is that: no finishing treatment was used.
Comparative example 3
The difference from example 1 is that: no synergistic nano powder is added and no finishing agent treatment is carried out.
The performance test is carried out on the high-strength regenerated special-shaped large-gloss polyester fibers prepared in each example and comparative example, and the specific results are shown in table 1.
Elongation at break: the measurement is carried out by referring to national standard GB/T24218.3-2010.
Tensile strength: the test was performed with reference to national standard GB 7689.5-2001.
Abrasion resistance: the high-strength regenerated special-shaped large-gloss polyester fibers prepared in each example and comparative example are prepared into textile fabrics, and the part 2 is used for measuring the pilling performance of the textile fabrics according to GB/T4802.2-2008: the samples were tested for anti-pilling properties by the modified Martindale method.
TABLE 1
| Numbering device | Tensile Strength (MPa) | Elongation at break (%) | Anti-pilling Property (grade) |
| Example 1 | 82.5 | 44 | 5 |
| Example 2 | 81.1 | 42 | 5 |
| Example 3 | 80 | 40 | 5 |
| Comparative example 1 | 62.3 | 28 | 3 |
| Comparative example 2 | 71.8 | 33 | 4 |
| Comparative example 3 | 55.6 | 21 | 2 |
As can be seen from comparison of the test results of each example and the comparative example in Table 1, the high-strength regenerated special-shaped large-gloss polyester fiber provided by the invention can be prepared by melt blending the synergistic nano powder and polyester, spinning and treating with a finishing agent, so that the regenerated special-shaped large-gloss polyester fiber has high strength and good wear resistance, and can effectively meet the requirements of practical application.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement it, but not limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The high-strength regenerated special-shaped large-gloss polyester fiber is characterized in that raw materials for preparing the high-strength regenerated special-shaped large-gloss polyester fiber comprise synergistic nano powder, a finishing agent and regenerated large-gloss polyester chips.
2. The high-strength regenerated irregularly-shaped large-gloss polyester fiber according to claim 1, wherein the mass ratio of the synergistic nano powder to the regenerated large-gloss polyester chip is 1:10-15.
3. The high-strength regenerated irregularly-shaped large-gloss polyester fiber according to claim 1, wherein the preparation method of the synergistic nano powder comprises the following steps:
(1) Mixing an aluminum chloride solution with an ammonia water solution, reacting for 1-3 hours under the stirring condition to obtain a product, washing for 2-3 times with distilled water, drying, calcining for 1-2 hours at 800-1000 ℃, and grinding to obtain nano powder for later use;
(2) Mixing titanium dioxide powder, boron powder and salt, grinding for 20-40min, uniformly mixing, calcining for 2-4h under inert atmosphere, cooling, adding into deionized water, removing excessive reducing agent and byproducts, filtering and drying the product to obtain titanium diboride for later use;
(3) Mixing titanium diboride and nano powder, grinding for 1-2h, roasting at 600-700 ℃ for 0.5-1h, and sieving to obtain the synergistic nano powder.
4. The high-strength regenerated irregularly-shaped large-gloss polyester fiber according to claim 3, wherein the concentration of the aluminum chloride solution in the step (1) is 0.3-0.5mol/L, the concentration of the ammonia water solution is 2-3%, and the mass ratio of the aluminum chloride solution to the ammonia water solution is 1:1-2.
5. The high-strength regenerated irregularly-shaped large-gloss polyester fiber according to claim 3, wherein the mass ratio of the titanium dioxide powder to the boron powder in the step (2) is 2-3:1, the salt is a mixture of sodium chloride and potassium chloride, and the mass ratio of the sodium chloride to the potassium chloride is 1:1-2.
6. The high-strength regenerated irregularly shaped large glossy polyester fiber according to claim 3, wherein the mass ratio of titanium diboride to nano powder in the step (3) is 1-2:1.
7. The high-strength regenerated profiled large glossy polyester fiber according to claim 1, wherein the preparation method of the finishing agent comprises the following steps:
dissolving chitosan in acetic acid solution, adding 2-oxoglutarate, reacting at constant temperature for 3-5h, then adding sodium borohydride solution, continuously reacting for 0.5-1 day, collecting the product, and drying at constant temperature to obtain white powder, namely the finishing agent.
8. The high-strength regenerated profiled large glossy polyester fiber according to claim 7, wherein the mass of the 2-oxoglutarate is 1-2 times that of chitosan.
9. A method for preparing the high-strength regenerated irregularly-shaped large-gloss polyester fiber according to any one of claims 1 to 8, which comprises the following steps:
(1) After melting the regenerated large glossy polyester chip, adding synergistic nano powder, stirring and mixing uniformly at a high speed, spinning by using a spinneret plate with cross shaped holes, and cooling to room temperature by blowing to obtain fiber filaments;
(2) Adding the finishing agent into water, uniformly stirring to prepare finishing agent solution, soaking fiber filaments in the finishing agent solution, drying, shaping and winding to obtain the high-strength regenerated irregularly-shaped large-gloss polyester fiber.
10. The method for producing a high-strength regenerated profiled large glossy polyester fiber according to claim 9, wherein the spinning temperature in the step (1) is 280-290 ℃, and the spinning speed is 800-900m/min; the concentration of the finishing agent solution in the step (2) is 20-60g/L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704263.6A CN117626467A (en) | 2023-12-13 | 2023-12-13 | High-strength regenerated irregularly-shaped large-gloss polyester fiber and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704263.6A CN117626467A (en) | 2023-12-13 | 2023-12-13 | High-strength regenerated irregularly-shaped large-gloss polyester fiber and preparation method thereof |
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