CN110644069A - Preparation method of moisture-absorbing sweat-releasing antibacterial polyamide filament - Google Patents

Preparation method of moisture-absorbing sweat-releasing antibacterial polyamide filament Download PDF

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Publication number
CN110644069A
CN110644069A CN201910991508.5A CN201910991508A CN110644069A CN 110644069 A CN110644069 A CN 110644069A CN 201910991508 A CN201910991508 A CN 201910991508A CN 110644069 A CN110644069 A CN 110644069A
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China
Prior art keywords
silver powder
spinning
antibacterial
nylon
powder
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CN201910991508.5A
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Chinese (zh)
Inventor
石学兵
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Qingdao Yinyuan Textile Technology Co Ltd
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Qingdao Yinyuan Textile Technology Co Ltd
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Priority to CN201910991508.5A priority Critical patent/CN110644069A/en
Publication of CN110644069A publication Critical patent/CN110644069A/en
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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
    • D01F6/88Monocomponent 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
    • D01F6/90Monocomponent 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 polyamides
    • 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
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • D01F1/103Agents inhibiting growth of microorganisms

Abstract

The invention belongs to the technical field of chemical fiber processing, and particularly relates to a preparation method of a moisture-absorbing sweat-releasing antibacterial polyamide filament, which comprises the following steps: (1) coating silver powder with the particle size of 3-20 μm; (2) preparing antibacterial nylon particles, namely preparing the antibacterial nylon particles doped with the silver powder subjected to coating treatment by using a screw extruder; (3) the spinning process comprises the following steps: the antibacterial nylon particles are made into the nylon filament with the antibacterial function through the steps of a spinning screw extruder, a spinning box body, a spinning metering pump, a spinning assembly, circular air blowing cooling, oiling, drafting and winding into a cylinder, wherein the spinning assembly uses a spinneret orifice shaped like a Chinese character 'mi'. The silver powder used is coated, so that the agglomeration of the silver powder is reduced, the produced nylon fiber has better antibacterial effect, and the silver powder in the fiber is not easy to fall off.

Description

Preparation method of moisture-absorbing sweat-releasing antibacterial polyamide filament
The technical field is as follows:
the invention belongs to the technical field of chemical fiber processing, and particularly relates to a preparation method of a moisture-absorbing sweat-releasing antibacterial nylon filament.
Background art:
the polyamide fiber, commonly called nylon, has the advantages of high strength, excellent wear resistance and good rebound resilience. The nylon has heat setting property, and can keep the bending deformation formed during heating. The nylon fabric is well-known for excellent wear resistance and light and thin in texture, so that the nylon fabric is the best choice for sportswear, swimwear, body-building wear, down jacket and mountaineering wear. Along with the improvement of the living standard of people and the gradual understanding of healthy textiles, people have more and more requirements on functional clothes, and the nano silver textile which is ecological and environment-friendly and has an antibacterial function has a good market prospect.
Reports about nano silver are reported at home and abroad, and the nano silver is applied to the field of textiles, so that multifunctional high-added-value fabrics are developed, and huge economic and social benefits can be created in the future textile industry. As a novel nano material which is deeply researched and rapidly developed, nano silver has a very wide application prospect in the textile industry, but has some technical problems to be solved, for example, nano silver powder is easy to fall off, silver deposition can be formed in organisms after long-term use of nano silver for antibiosis and can cause adverse effects on human bodies, excessive deposition can even cause obvious poisoning phenomena, nano silver volatilizes into the environment and can also have certain influence on the ecology, the nano silver does not have a sterilization function after being separated out, the time is generally from three months to half a year, and the nano silver can be harmful to the bodies after long-term use and can even cause poisoning symptoms. Meanwhile, the silver particles have small particle size and are easy to agglomerate in the processing and storage processes, so that the antibacterial effect of the finished product is lower than expected. The invention patent with application number 201811188000.3 discloses a production method of antibacterial nylon fiber, which comprises the following steps: 1) drying the antibacterial master batch and the chinlon 6 slices; 2) adding antibacterial masterbatch by using a masterbatch output injection pump, and mixing and melting the antibacterial masterbatch and the chinlon 6 slices according to a certain proportion; 3) spinning: extruding the molten melt from the spinneret orifice and solidifying the melt into filaments; 4) and (3) drafting and texturing the prepared fiber. In the step 1), the antibacterial master batch is silver-loaded nano zinc oxide or a quinoline antibacterial agent; in the step 2), the weight ratio of the master batch to the chinlon 6 slices is 1: 5-10; in the step 3), the spinning temperature is 260 ℃ and 270 ℃. The invention patent with application number 201611209759.6 discloses a production method of antibacterial chinlon, which comprises the following steps: 1) preparing an antibacterial polyamide master batch: mixing and granulating nylon-6 slices and nano-silver phosphate to obtain antibacterial nylon master batches; 2) spinning: blending and spinning the antibacterial chinlon prepared in the step 1) and the chinlon 6 slices, and performing oiling winding, balancing and stretching to obtain the antibacterial chinlon. The grain size of the nano silver phosphate in the step 1) is less than 0.8 micron. The invention patent with application number 200810121925.6 discloses a manufacturing process of colored and nano silver ion antibacterial polyester-nylon composite superfine fiber, which comprises the following steps: (1) slicing raw materials of terylene and chinlon, and preparing colored master batches and nano silver ion antibacterial master batches; (2) drying terylene, chinlon, colored master batch and nano silver ion antibacterial master batch by a crystallization dryer; (3) respectively melting the dried terylene slices and the dried chinlon slices with the colored master batches and the nano silver ion antibacterial master batches by a screw extruder; (4) controlling the volume of the melt by a spinning metering pump; (5) carrying out composite spinning on a conjugate spinning machine; (6) cooling after spinning, oiling and winding into spinning cakes; (7) placing the wound spinning cake in a balance room for balancing; (8) the balanced spinning cake is subjected to texturing on a conventional texturing machine. In the prior art, silver is added in the production process of nylon, and the nylon product has an antibacterial function by utilizing the extremely strong bactericidal capacity of silver ions, but the defects that nano silver is easy to agglomerate and separate out to influence human health cannot be overcome.
The invention content is as follows:
the invention aims to overcome the defects of the prior art, aims at overcoming the defects that the textile fiber doped with nano-silver in the prior art is easy to drop the nano-silver, harms health and environment, has non-lasting antibacterial performance and reduces the antibacterial effect caused by easy agglomeration of silver particles, and designs and seeks a preparation method of the moisture-absorbing sweat-releasing antibacterial nylon filament yarn on the premise of mass production and manufacture, so that the nylon fiber has antibacterial performance and antibacterial durability.
In order to realize the aim, the preparation method of the moisture-absorbing sweat-releasing antibacterial nylon filament comprises the following steps:
(1) treatment of silver powder: mixing and stirring sodium nonylphenoxy propane sulfonate powder and silver powder to reduce electrostatic force among the silver powder, wherein the weight ratio of the sodium nonylphenoxy propane sulfonate to the silver powder is (0.02-10):100, and the particle size of the silver powder is 3-20 mu m; mixing the silver powder and SiO2Putting 32% by mass of silica sol into a magnetic heating stirrer, stirring until the silica sol becomes uniform suspension in the system, adding 25% by mass of ammonia water into the suspension, and continuously stirring until the silica sol is in a gel state; then the obtained gel is dried by a blast drierDrying to obtain powder with water content of 0.1-1.5%; finally, calcining the obtained powder at high temperature of 200-700 ℃ in nitrogen atmosphere, raising the temperature at 1-20 ℃/min for 5-60min, taking out the powder after the heat preservation is finished and cooling to room temperature, grinding and screening the powder to obtain the surface-coated SiO2The silver powder of (1);
(2) preparing antibacterial polyamide fiber particles: drying the silver powder subjected to coating treatment and the nylon chips obtained in the first step by using a blast dryer to control the water content of the nylon chips to be 10-35ppm, adding the silver powder subjected to coating treatment by using an output injection pump, mixing and melting the silver powder and the nylon chips, and preparing antibacterial nylon particles doped with the silver powder subjected to coating treatment by using a screw extruder;
(3) the spinning process comprises the following steps: the antibacterial nylon particles are subjected to the steps of spinning screw extruder, spinning box, spinning metering pump, spinning assembly, circular air blow cooling, oiling, drafting and winding into a tube, and then the nylon filament with the antibacterial function is prepared.
The weight ratio of the silver powder, the silica sol and the ammonia water in the step (1) is 1 (1-20) to 0.5-35.
The weight ratio of the silver powder subjected to coating treatment in the step (2) to the nylon chips is (0.02-15):100, the melting temperature of the screw extruder is 220-280 ℃.
In the step (3), the temperature of the screw extrusion area of the spinning screw extruder is 240-270 ℃, the temperature of the spinning box is 260-310 ℃, the relative viscosity of the melt is 2.0-3.5, the wind speed of the cooling wind is 0.2-10m/s, and the temperature of the cooling wind is 10-25 ℃.
The spinning assembly in the step (3) uses a spinneret orifice shaped like a Chinese character 'mi'.
Compared with the prior art, the process method for preparing the antibacterial nylon fiber is simple, convenient and efficient, the agglomeration of the silver powder is reduced by coating the used silver powder, so that the produced nylon fiber has better antibacterial effect, the silver powder is not easy to fall off, excellent antibacterial performance and antibacterial durability are obtained by using lower cost, the principle is reliable, the automation degree of the production process is high, the product quality is good, and the process method can be popularized and used.
The specific implementation mode is as follows:
the invention is further illustrated by the following examples.
Example 1:
the preparation method of the moisture-absorbing sweat-releasing antibacterial nylon filament related to the embodiment comprises the following steps:
(1) treatment of silver powder: mixing and stirring sodium nonylphenoxy propane sulfonate powder and silver powder to reduce electrostatic force among the silver powder, wherein the weight ratio of the sodium nonylphenoxy propane sulfonate to the silver powder is 1:100, and the particle size of the silver powder is 3-20 mu m; mixing the silver powder and SiO2Putting 32% by mass of silica sol into a magnetic heating stirrer, stirring until the silica sol becomes uniform suspension in the system, adding 25% by mass of ammonia water into the suspension, and continuously stirring until the suspension is in a gel state, wherein the weight ratio of the silver powder to the silica sol to the ammonia water is 1:5: 5; drying the prepared gel with a blast drier, and controlling the water content to be 0.1-1.5% to obtain powder; and finally, calcining the obtained powder at high temperature in a nitrogen atmosphere, wherein the calcining temperature is 200 ℃, the heating rate is 5 ℃/min, the heat preservation time is 10min, taking out the powder when the temperature is kept to be cooled to the room temperature, grinding and screening the powder to obtain the surface-coated SiO2The silver powder of (1);
(2) preparing antibacterial polyamide fiber particles: drying the silver powder subjected to coating treatment and the nylon chips obtained in the first step by using a blast dryer to control the water content of the nylon chips to be 10-35ppm, adding the silver powder subjected to coating treatment by using an output injection pump, mixing and melting the silver powder and the nylon chips, and preparing antibacterial nylon particles doped with the silver powder subjected to coating treatment by using a screw extruder; wherein the weight ratio of the coated silver powder to the nylon chips is 1:100, and the melting temperature of a screw extruder is 220 ℃;
(3) the spinning process comprises the following steps: the antibacterial nylon particles are made into nylon filaments with antibacterial function through the steps of a spinning screw extruder, a spinning box, a spinning metering pump, a spinning assembly, circular air blow cooling, oiling, drafting and winding into a tube; the temperature of a screw extrusion area of the spinning screw extruder is 250 ℃, the temperature of a spinning box body is 260 ℃, the relative viscosity of a melt is 2.0, the wind speed of cooling wind is 1m/s, and the temperature of the cooling wind is 10-25 ℃.
In the embodiment, the spinning component uses the spinneret orifices shaped like a Chinese character 'mi', the prepared chinlon filaments shaped like a Chinese character 'mi' have a surface groove structure, and the generated wicking action can quickly conduct sweat generated by a human body, so that the human body keeps dry and comfortable all the time.
Example 2:
the preparation method of the moisture-absorbing sweat-releasing antibacterial nylon filament related to the embodiment comprises the following steps:
(1) treatment of silver powder: mixing and stirring sodium nonylphenoxy propane sulfonate powder and silver powder to reduce electrostatic force among the silver powder, wherein the weight ratio of the sodium nonylphenoxy propane sulfonate to the silver powder is 8:100, and the particle size of the silver powder is 3-20 mu m; mixing the silver powder and SiO2Putting 32% by mass of silica sol into a magnetic heating stirrer, stirring until the silica sol becomes uniform suspension in the system, adding 25% by mass of ammonia water into the suspension, and continuously stirring until the suspension is in a gel state, wherein the weight ratio of the silver powder to the silica sol to the ammonia water is 1:20: 30; drying the prepared gel with a blast drier, and controlling the water content to be 0.1-1.5% to obtain powder; and finally, calcining the obtained powder at high temperature in a nitrogen atmosphere, wherein the calcining temperature is 500 ℃, the heating rate is 15 ℃/min, the heat preservation time is 60min, taking out the powder when the temperature is kept to be cooled to the room temperature, grinding and screening the powder to obtain the surface-coated SiO2The silver powder of (1);
(2) preparing antibacterial polyamide fiber particles: drying the silver powder subjected to coating treatment and the nylon chips obtained in the first step by using a blast dryer to control the water content of the nylon chips to be 10-35ppm, adding the silver powder subjected to coating treatment by using an output injection pump, mixing and melting the silver powder and the nylon chips, and preparing antibacterial nylon particles doped with the silver powder subjected to coating treatment by using a screw extruder; wherein the weight ratio of the silver powder subjected to coating treatment to the nylon chips is 8:100, and the melting temperature of a screw extruder is 280 ℃;
(3) the spinning process comprises the following steps: the antibacterial nylon particles are made into nylon filaments with antibacterial function through the steps of a spinning screw extruder, a spinning box, a spinning metering pump, a spinning assembly, circular air blow cooling, oiling, drafting and winding into a tube; the temperature of a screw extrusion area of the spinning screw extruder is 270 ℃, the temperature of a spinning box body is 300 ℃, the relative viscosity of a melt is 3.0, the wind speed of cooling wind is 8m/s, and the temperature of the cooling wind is 10-25 ℃.
In the embodiment, the spinning component uses the spinneret orifices shaped like a Chinese character 'mi', the prepared chinlon filaments shaped like a Chinese character 'mi' have a surface groove structure, and the generated wicking action can quickly conduct sweat generated by a human body, so that the human body keeps dry and comfortable all the time.

Claims (5)

1. A preparation method of moisture-absorbing and sweat-releasing antibacterial nylon filaments is characterized by comprising the following steps:
(1) treatment of silver powder: mixing and stirring sodium nonylphenoxy propane sulfonate powder and silver powder to reduce electrostatic force among the silver powder, wherein the weight ratio of the sodium nonylphenoxy propane sulfonate to the silver powder is (0.02-10):100, and the particle size of the silver powder is 3-20 mu m; mixing the silver powder and SiO2Putting 32% by mass of silica sol into a magnetic heating stirrer, stirring until the silica sol becomes uniform suspension in the system, adding 25% by mass of ammonia water into the suspension, and continuously stirring until the silica sol is in a gel state; drying the prepared gel with a blast drier, and controlling the water content to be 0.1-1.5% to obtain powder; finally, calcining the obtained powder at high temperature of 200-700 ℃ in nitrogen atmosphere, raising the temperature at 1-20 ℃/min for 5-60min, taking out the powder after the heat preservation is finished and cooling to room temperature, grinding and screening the powder to obtain the surface-coated SiO2The silver powder of (1);
(2) preparing antibacterial polyamide fiber particles: drying the silver powder subjected to coating treatment and the nylon chips obtained in the first step by using a blast dryer to control the water content of the nylon chips to be 10-35ppm, adding the silver powder subjected to coating treatment by using an output injection pump, mixing and melting the silver powder and the nylon chips, and preparing antibacterial nylon particles doped with the silver powder subjected to coating treatment by using a screw extruder;
(3) the spinning process comprises the following steps: the antibacterial nylon particles are subjected to the steps of spinning screw extruder, spinning box, spinning metering pump, spinning assembly, circular air blow cooling, oiling, drafting and winding into a tube, and then the nylon filament with the antibacterial function is prepared.
2. The method for preparing moisture-absorbing sweat-releasing antibacterial nylon filament yarn according to claim 1, characterized in that: in the step (1), the weight ratio of the silver powder to the silica sol to the ammonia water is 1 (1-20) to 0.5-35.
3. The method for preparing moisture-absorbing sweat-releasing antibacterial nylon filament yarn according to claim 1, characterized in that: the weight ratio of the silver powder coated in the step (2) to the nylon chips is (0.02-15):100, and the melting temperature of a screw extruder is 220-.
4. The method for preparing moisture-absorbing sweat-releasing antibacterial nylon filament yarn according to claim 1, characterized in that: in the step (3), the temperature of the screw extrusion area of the spinning screw extruder is 240-270 ℃, the temperature of the spinning box is 260-310 ℃, the relative viscosity of the melt is 2.0-3.5, the wind speed of the cooling wind is 0.2-10m/s, and the temperature of the cooling wind is 10-25 ℃.
5. The method for preparing moisture-absorbing sweat-releasing antibacterial nylon filament yarn according to claim 1, characterized in that: the spinning assembly in the step (3) uses a spinneret orifice shaped like a Chinese character 'mi'.
CN201910991508.5A 2019-10-18 2019-10-18 Preparation method of moisture-absorbing sweat-releasing antibacterial polyamide filament Pending CN110644069A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1357649A (en) * 2000-12-07 2002-07-10 天津市发博纺织材料有限责任公司 Jinlun-6 antibiotic fiber and its production process
CN102237151A (en) * 2010-04-21 2011-11-09 比亚迪股份有限公司 Silicon oxide compound silver powder and preparation method thereof as well as conductive silver paste
CN103447028A (en) * 2013-08-30 2013-12-18 武汉理工大学 Preparation method of shape-controllable nano silver core/mesoporous silicon dioxide shell structure
CN105332082A (en) * 2015-12-01 2016-02-17 东华大学 Antibacterial polyamide fiber based on silver-loaded zirconium phosphate and preparation method thereof
CN110230119A (en) * 2019-07-04 2019-09-13 青岛银原素纺织科技有限公司 A kind of preparation method of antibiotic polyester fiber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1357649A (en) * 2000-12-07 2002-07-10 天津市发博纺织材料有限责任公司 Jinlun-6 antibiotic fiber and its production process
CN102237151A (en) * 2010-04-21 2011-11-09 比亚迪股份有限公司 Silicon oxide compound silver powder and preparation method thereof as well as conductive silver paste
CN103447028A (en) * 2013-08-30 2013-12-18 武汉理工大学 Preparation method of shape-controllable nano silver core/mesoporous silicon dioxide shell structure
CN105332082A (en) * 2015-12-01 2016-02-17 东华大学 Antibacterial polyamide fiber based on silver-loaded zirconium phosphate and preparation method thereof
CN110230119A (en) * 2019-07-04 2019-09-13 青岛银原素纺织科技有限公司 A kind of preparation method of antibiotic polyester fiber

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Title
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祖立武: "《化学纤维成型工艺学》", 30 September 2014, 哈尔滨工业大学出版社 *

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