CN110284231B - Preparation method of breathable moisture-conductive bacteriostatic biomass yarn - Google Patents
Preparation method of breathable moisture-conductive bacteriostatic biomass yarn Download PDFInfo
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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- 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
- D01F1/103—Agents inhibiting growth of microorganisms
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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
- D01F6/90—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 polyamides
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/004—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/322—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using hollow spindles
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/326—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic the elastic properties due to the construction rather than to the use of elastic material
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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Abstract
The invention discloses a preparation method of breathable, moisture-conductive and bacteriostatic biomass yarn, which is composite yarn prepared by blending SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber, nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber and SPH composite elastic fiber. In the breathable moisture-conducting bacteriostatic biomass composite yarn, SPH composite self-curling elastic fibers are used as inner cores, so that the elasticity of the composite yarn is reflected; the two modified bio-based fibers are wrapped on the surface layer of the composite yarn, so that the air permeability, moisture permeability and bacteriostasis effects of the composite yarn are embodied.
Description
Technical Field
The invention belongs to the field of yarn weaving, and particularly relates to a preparation method of breathable moisture-conducting bacteriostatic biomass yarn.
Background
With the rapid development of economy in China, the living standard is continuously improved, and the pursuit of people for living quality tends to be more healthy and environment-friendly. Meanwhile, awareness of self health care is increasingly strengthened. The microorganisms in nature are various and ubiquitous, so that the number of people with various allergies is increased, and the health of people is affected. The development of antibacterial fibers as the first protective layer of human skin is of great importance.
The bio-based polyamide 56 fiber shows excellent performance in the aspects of moisture absorption, sweat discharging, dyeability, comfort, elasticity, wear resistance, flame retardance and the like, and is widely applied to the fields of carpets, high-grade bags, clothing, airbag yarns and the like.
More than 30% of Eco Circle plant fiber bio-based fibers are bio-based raw materials derived from sugarcane, so that carbon emission can be reduced, and performances and quality comparable to those of petroleum-based PET can be maintained.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a preparation method of breathable moisture-conducting bacteriostatic biomass yarn.
The technical scheme is as follows: a preparation method of breathable moisture-conducting bacteriostatic biomass yarn adopts a parallel spinning machine to prepare multilayer structure composite yarn, a feeding device is additionally arranged at a front roller of a drafting area of the parallel spinning machine, SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber is fed, SPH composite elastic fiber fed from a rear roller is coated on the inner layer of the yarn, and finally a sliver is coated by a nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber filament on a hollow spindle to form the breathable moisture-conducting bacteriostatic biomass composite yarn;
in order to improve the air permeability of the breathable moisture-conducting bacteriostatic biomass composite yarn, the composite yarn is placed in hot water at 100 ℃ for treatment for 30min by utilizing the difference of the heat shrinkage rates of the three fibers, and the heat shrinkage rate of the PTT component in the SPH composite elastic fiber can reach 13-16%, so that the composite yarn is in a three-dimensional structure.
As an optimization: the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber comprises the following steps: (1) preparing an SBA-3 loaded nano-silver material; (2) preparing SBA-3 load nano-silver modified Eco Circle plant fiber bio-based master batch; (3) and preparing the SBA-3 load nano-silver modified Eco Circle plant fiber bio-based fiber.
As an optimization: the SBA-3 load nano-silver material is prepared by the following steps: the SBA-3 load nano-silver material is prepared by adopting a direct low-temperature hydrothermal synthesis method, and the specific operation is as follows: adding 5-8g of SBA-3 mesoporous molecular sieve into 100mL of nano silver ethanol solution with the mass concentration of 30% to form suspension, adjusting the pH to 8-10 by using 2moL/L of NaOH solution, continuously stirring for 20min, performing ultrasonic oscillation for 2h at 30-45 ℃ by using an ultrasonic generator with the frequency of 50KHz, centrifuging for 20min at 3500r/min, and washing the obtained precipitate for 2-5 times by using absolute ethyl alcohol; adding deionized water, reacting at 120 ℃ for 16h, naturally cooling to room temperature, washing the product obtained by the reaction with absolute ethyl alcohol for 2-5 times, drying at 60 ℃ for 12h, grinding and sieving with a 200-mesh sieve to obtain the SBA-3 supported nano-silver material.
As an optimization: the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based master batch comprises the following specific operations: firstly, grinding Eco Circle plant fiber bio-based slices into powder by using a plastic pulverizer, adding 50-60 parts by weight of the bio-based slices, and adding the other materials as follows: 30-35 parts of SBA-3 loaded nano silver, 8-12 parts of antioxidant, 5-10 parts of COREXIT dispersant and 2-5 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then cutting into particles.
As an optimization: the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber comprises the following specific operations: melt spinning of fibers: selecting a multi-blade special-shaped six-hole spinneret plate, wherein the cross section of the processed fiber is in a multi-blade petal shape, the equivalent diameter of the special-shaped fiber is 18-22 mu m, and the relative radial special-shaped degree is 17-21%.
As an optimization: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber comprises the following steps: (1) preparing a nano zinc oxide load gold material; (2) preparing nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch; (3) and preparing the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber.
As an optimization: the preparation of the nano zinc oxide load gold material comprises the steps of taking nano zinc oxide as a carrier, adsorbing nano gold on the carrier, and preparing the nano zinc oxide load gold material with the antibacterial effect; the specific operation is as follows: adding 5g of nano zinc oxide into 100mL of deionized water, magnetically stirring for 10min, and ultrasonically oscillating for 1h at 20-25 ℃ by using an ultrasonic generator with the frequency of 40KHz to obtain a suspension. And transferring the suspension into a flask, adding 100mL of 5mmol/L chloroauric acid solution, magnetically stirring for 800r/min, heating to 85 ℃, keeping the temperature for 3-5min, dropwise adding 20mL of 10mmol/L sodium citrate as a reducing agent, stopping heating after dropwise adding is finished, continuously stirring for 10min, standing and cooling to room temperature, carrying out suction filtration on a lower precipitate, washing with absolute ethyl alcohol, drying at 100 ℃, grinding and sieving with a 200-mesh sieve to obtain the nano zinc oxide load gold material.
As an optimization: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch comprises the following specific operations: firstly, slicing and grinding the bio-based polyamide 56 into powder by using a plastic pulverizer, adding 60-65 parts by weight of the bio-based polyamide, and adding other materials: 20-25 parts of nano zinc oxide loaded gold, 10-20 parts of antistatic agent, 5-10 parts of COREXIT dispersing agent and 2-5 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then cutting into granules.
As an optimization: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber comprises the following specific operations: selecting a multi-blade special-shaped six-hole spinneret plate, wherein the cross section of the processed fiber is in a multi-blade petal shape, the equivalent diameter of the special-shaped fiber is 20-25 mu m, and the relative radial special-shaped degree is 21-26%.
Has the advantages that: the SPH composite elastic fiber is an elastic fiber with self-curling, which is spun by PET/PTT composite elastic yarn by adopting a parallel composite spinning technology and utilizing the shrinkage difference of two components of PET and PTT.
The invention relates to a composite yarn prepared by blending SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber, nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber and SPH composite elastic fiber. In the breathable moisture-conducting bacteriostatic biomass composite yarn, SPH composite self-curling elastic fibers are used as inner cores, so that the elasticity of the composite yarn is reflected; the two modified bio-based fibers are wrapped on the surface layer of the composite yarn, so that the air permeability, moisture permeability and bacteriostasis effects of the composite yarn are embodied.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Detailed description of the preferred embodiment 1
Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
1. Preparation of SBA-3 loaded nano-silver material
The SBA-3 mesoporous material is non-toxic and harmless, and the pore wall contains a large number of micropores, so that the material has a very strong adsorption effect. The nano silver is a nano antibacterial material with wide antibacterial spectrum, long antibacterial efficiency, good thermal stability and high biological safety.
The SBA-3 load nano-silver material is prepared by adopting a direct low-temperature hydrothermal synthesis method, and the method comprises the following steps:
100mL of nano silver ethanol solution with the mass concentration of 30 percent is added with 5g of SBA-3 mesoporous molecular sieve to form suspension, the pH value is adjusted to 8 by 2moL/L of NaOH solution, the stirring is continued for 20min, an ultrasonic generator with the frequency of 50KHz is used for ultrasonic oscillation at 30 ℃ for 2h, 3500r/min is used for centrifugation for 20min, and the obtained precipitate is washed for 2 times by absolute ethyl alcohol. Adding deionized water, reacting at 120 ℃ for 16h, naturally cooling to room temperature, washing the product obtained by the reaction with absolute ethyl alcohol for 2 times, drying at 60 ℃ for 12h, grinding and sieving with a 200-mesh sieve to obtain the SBA-3 loaded nano-silver material.
2. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based master batch
The preparation of the master batch comprises the steps of firstly grinding Eco Circle plant fiber bio-based slices into powder by using a plastic pulverizer, adding 50-60 parts by weight, and preparing the following other materials: 30 parts of SBA-3 loaded nano silver, 8 parts of antioxidant, 5 parts of COREXIT dispersant and 2 parts of lubricant are stirred and blended, dried in a dynamic vacuum drying oven at 60 ℃, placed in a double-screw composite spinning machine for extrusion, cooled and cut into particles.
3. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
The melt spinning fiber is a novel high-efficiency clean processing technology, in order to improve the air permeability and moisture conductivity of the yarn and the antibacterial effect of nano-silver, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 18 mu m, and the relative radial special-shaped degree is 17%.
Preparation of di-nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
1. Preparation of nano zinc oxide load gold material
The nano zinc oxide is a green environment-friendly photocatalyst which is non-toxic, harmless and stable in structure. The nano zinc oxide is taken as a carrier, and the nano gold is adsorbed on the carrier to prepare the nano zinc oxide loaded gold material with the bacteriostatic action.
Adding 5g of nano zinc oxide into 100mL of deionized water, magnetically stirring for 10min, and ultrasonically oscillating for 1h at 20 ℃ by using an ultrasonic generator with the frequency of 40KHz to obtain a suspension. And transferring the suspension into a flask, adding 100mL of 5mmol/L chloroauric acid solution, magnetically stirring for 800r/min, heating to 85 ℃, keeping the temperature for 3min, dropwise adding 20mL of 10mmol/L sodium citrate as a reducing agent, stopping heating after dropwise adding, continuously stirring for 10min, standing and cooling to room temperature, filtering a lower-layer precipitate, washing with absolute ethyl alcohol, drying at 100 ℃, grinding, and sieving with a 200-mesh sieve to obtain the nano zinc oxide load-gold material.
2. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch
The preparation of the master batch comprises the steps of firstly, slicing and grinding the bio-based polyamide 56 into powder by using a plastic pulverizer, adding 60-65 parts by weight of the bio-based polyamide, and mixing the following materials: 20 parts of nano zinc oxide loaded gold, 10 parts of antistatic agent, 5 parts of COREXIT dispersing agent and 2 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then pelletizing.
3. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
In order to improve the air permeability and moisture conductivity of the yarn and improve the bacteriostatic action of the nano-gold, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 20 mu m, and the relative radial special-shaped degree is 21%.
Third, breathable moisture-conductive bacteriostatic biomass yarn process
The method comprises the steps of preparing a multilayer structure composite yarn by adopting a parallel spinning machine, additionally arranging a feeding device at a front roller of a drafting area of the parallel spinning machine, feeding SBA-3 loaded nano-silver modified Eco Circle plant fiber, coating SPH composite elastic fiber fed from a rear roller on the inner layer of the yarn, and finally wrapping a sliver by using a nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber filament on a hollow spindle, thus forming the breathable moisture-conducting bacteriostatic biomass composite yarn.
In order to improve the air permeability of the breathable moisture-conducting bacteriostatic biomass composite yarn, the composite yarn is placed in hot water at 100 ℃ for treatment for 30min by utilizing the difference of the heat shrinkage rates of the three fibers, and the heat shrinkage rate of the PTT component in the SPH composite elastic fiber can reach 13%, so that the composite yarn is in a three-dimensional structure, and the air permeability of the yarn is further enhanced.
Specific example 2
Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
1. Preparation of SBA-3 loaded nano-silver material
The SBA-3 mesoporous material is non-toxic and harmless, and the pore wall contains a large number of micropores, so that the material has a very strong adsorption effect. The nano silver is a nano antibacterial material with wide antibacterial spectrum, long antibacterial efficiency, good thermal stability and high biological safety.
The SBA-3 load nano-silver material is prepared by adopting a direct low-temperature hydrothermal synthesis method, and the method comprises the following steps:
100mL of nano silver ethanol solution with the mass concentration of 30 percent is added with 8g of SBA-3 mesoporous molecular sieve to form suspension, the pH value is adjusted to 10 by 2moL/L of NaOH solution, the stirring is continued for 20min, an ultrasonic generator with the frequency of 50KHz is used for ultrasonic oscillation at 45 ℃ for 2h, 3500r/min is used for centrifugation for 20min, and the obtained precipitate is washed for 5 times by absolute ethyl alcohol. Adding deionized water, reacting at 120 ℃ for 16h, naturally cooling to room temperature, washing the product obtained by the reaction with absolute ethyl alcohol for 5 times, drying at 60 ℃ for 12h, grinding and sieving with a 200-mesh sieve to obtain the SBA-3 loaded nano-silver material.
2. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based master batch
The preparation of the master batch comprises the steps of firstly grinding Eco Circle plant fiber bio-based slices into powder by using a plastic powder mill, adding the powder according to 60 parts by weight, and preparing the master batch from the following other materials: 35 parts of SBA-3 loaded nano silver, 12 parts of antioxidant, 10 parts of COREXIT dispersant and 5 parts of lubricant are stirred and blended, dried in a dynamic vacuum drying oven at 60 ℃, placed in a double-screw composite spinning machine for extrusion, cooled and cut into particles.
3. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
The melt spinning fiber is a novel high-efficiency clean processing technology, in order to improve the air permeability and moisture conductivity of the yarn and the bacteriostatic action of nano-silver, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 22 mu m, and the relative radial special-shaped degree is 21%.
Preparation of di-nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
1. Preparation of nano zinc oxide load gold material
The nano zinc oxide is a green environment-friendly photocatalyst which is non-toxic, harmless and stable in structure. The nano zinc oxide is taken as a carrier, and the nano gold is adsorbed on the carrier to prepare the nano zinc oxide loaded gold material with the bacteriostatic action.
Adding 5g of nano zinc oxide into 100mL of deionized water, magnetically stirring for 10min, and ultrasonically oscillating for 1h at 25 ℃ by using an ultrasonic generator with the frequency of 40KHz to obtain a suspension. And transferring the suspension into a flask, adding 100mL of 5mmol/L chloroauric acid solution, magnetically stirring for 800r/min, heating to 85 ℃, keeping the temperature for 5min, dropwise adding 20mL of 10mmol/L sodium citrate as a reducing agent, stopping heating after dropwise adding, continuously stirring for 10min, standing and cooling to room temperature, filtering a lower-layer precipitate, washing with absolute ethyl alcohol, drying at 100 ℃, grinding, and sieving with a 200-mesh sieve to obtain the nano zinc oxide load-gold material.
2. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch
The preparation of the master batch comprises the steps of firstly, slicing and grinding the bio-based polyamide 56 into powder by using a plastic pulverizer, adding 60-65 parts by weight of the bio-based polyamide, and mixing the following materials: 25 parts of nano zinc oxide loaded gold, 20 parts of antistatic agent, 10 parts of COREXIT dispersing agent and 5 parts of lubricating agent, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then pelletizing.
3. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
In order to improve the air permeability and moisture conductivity of the yarn and improve the bacteriostatic action of the nano-gold, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 25 mu m, and the relative radial special-shaped degree is 26%.
Third, breathable moisture-conductive bacteriostatic biomass yarn process
The method comprises the steps of preparing a multilayer structure composite yarn by adopting a parallel spinning machine, additionally arranging a feeding device at a front roller of a drafting area of the parallel spinning machine, feeding SBA-3 loaded nano-silver modified Eco Circle plant fiber, coating SPH composite elastic fiber fed from a rear roller on the inner layer of the yarn, and finally wrapping a sliver by using a nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber filament on a hollow spindle, thus forming the breathable moisture-conducting bacteriostatic biomass composite yarn.
In order to improve the air permeability of the breathable moisture-conducting bacteriostatic biomass composite yarn, the composite yarn is placed in hot water at 100 ℃ for treatment for 30min by utilizing the difference of the heat shrinkage rates of the three fibers, and the heat shrinkage rate of the PTT component in the SPH composite elastic fiber can reach 16%, so that the composite yarn is in a three-dimensional structure, and the air permeability of the yarn is further enhanced.
Specific example 3
Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
1. Preparation of SBA-3 loaded nano-silver material
The SBA-3 mesoporous material is non-toxic and harmless, and the pore wall contains a large number of micropores, so that the material has a very strong adsorption effect. The nano silver is a nano antibacterial material with wide antibacterial spectrum, long antibacterial efficiency, good thermal stability and high biological safety.
The SBA-3 load nano-silver material is prepared by adopting a direct low-temperature hydrothermal synthesis method, and the method comprises the following steps:
adding 7g of SBA-3 mesoporous molecular sieve into 100mL of nano silver ethanol solution with the mass concentration of 30% to form suspension, adjusting the pH to 9 by using 2moL/L of NaOH solution, continuously stirring for 20min, performing ultrasonic oscillation at 38 ℃ for 2h by using an ultrasonic generator with the frequency of 50KHz, centrifuging for 20min at 3500r/min, and washing the obtained precipitate for 4 times by using absolute ethyl alcohol. Adding deionized water, reacting at 120 ℃ for 16h, naturally cooling to room temperature, washing the product obtained by the reaction with absolute ethyl alcohol for 3 times, drying at 60 ℃ for 12h, grinding and sieving with a 200-mesh sieve to obtain the SBA-3 loaded nano-silver material.
2. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based master batch
The preparation of the master batch comprises the steps of firstly grinding Eco Circle plant fiber bio-based slices into powder by using a plastic pulverizer, adding 54 parts by weight of the Eco Circle plant fiber bio-based slices, and preparing the following other materials: 33 parts of SBA-3 loaded nano silver, 11 parts of antioxidant, 7 parts of COREXIT dispersant and 4 parts of lubricant are stirred and blended, dried in a dynamic vacuum drying oven at 60 ℃, placed in a double-screw composite spinning machine for extrusion, cooled and cut into particles, and the nano silver/carbon nano composite spinning material is obtained.
3. Preparation of SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber
The melt spinning fiber is a novel high-efficiency clean processing technology, in order to improve the air permeability and moisture conductivity of the yarn and the antibacterial effect of nano-silver, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 19 mu m, and the relative radial special-shaped degree is 18%.
Preparation of di-nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
1. Preparation of nano zinc oxide load gold material
The nano zinc oxide is a green environment-friendly photocatalyst which is non-toxic, harmless and stable in structure. The nano zinc oxide is taken as a carrier, and the nano gold is adsorbed on the carrier to prepare the nano zinc oxide loaded gold material with the bacteriostatic action.
Adding 5g of nano zinc oxide into 100mL of deionized water, magnetically stirring for 10min, and ultrasonically oscillating for 1h at 23 ℃ by using an ultrasonic generator with the frequency of 40KHz to obtain a suspension. And transferring the suspension into a flask, adding 100mL of 5mmol/L chloroauric acid solution, magnetically stirring for 800r/min, heating to 85 ℃, keeping the temperature for 4min, dropwise adding 20mL of 10mmol/L sodium citrate as a reducing agent, stopping heating after dropwise adding, continuously stirring for 10min, standing and cooling to room temperature, filtering a lower-layer precipitate, washing with absolute ethyl alcohol, drying at 100 ℃, grinding, and sieving with a 200-mesh sieve to obtain the nano zinc oxide load-gold material.
2. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch
The preparation of the master batch comprises the steps of firstly, slicing and grinding the bio-based polyamide 56 into powder by using a plastic pulverizer, adding 62 parts by weight of the bio-based polyamide, and mixing the following materials: 22 parts of nano zinc oxide loaded gold, 16 parts of antistatic agent, 8 parts of COREXIT dispersing agent and 3 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then pelletizing.
3. Preparation of nano zinc oxide loaded gold modified bio-based polyamide 56 fiber
In order to improve the air permeability and moisture conductivity of the yarn and improve the bacteriostatic action of the nano-gold, a multi-leaf special-shaped six-hole spinneret plate is selected, the cross section of the processed fiber is in a multi-leaf petal shape, the equivalent diameter of the special-shaped fiber is 23 mu m, and the relative radial special-shaped degree is 24%.
Third, breathable moisture-conductive bacteriostatic biomass yarn process
The method comprises the steps of preparing a multilayer structure composite yarn by adopting a parallel spinning machine, additionally arranging a feeding device at a front roller of a drafting area of the parallel spinning machine, feeding SBA-3 loaded nano-silver modified Eco Circle plant fiber, coating SPH composite elastic fiber fed from a rear roller on the inner layer of the yarn, and finally wrapping a sliver by using a nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber filament on a hollow spindle, thus forming the breathable moisture-conducting bacteriostatic biomass composite yarn.
In order to improve the air permeability of the breathable moisture-conducting bacteriostatic biomass composite yarn, the composite yarn is placed in hot water at 100 ℃ for treatment for 30min by utilizing the heat shrinkage rate difference of the three fibers, and the heat shrinkage rate of the PTT component in the SPH composite elastic fiber can reach 15%, so that the composite yarn is in a three-dimensional structure, and the air permeability of the yarn is further enhanced.
The SPH composite elastic fiber is an elastic fiber with self-curling, which is spun by PET/PTT composite elastic yarn by adopting a parallel composite spinning technology and utilizing the shrinkage difference of two components of PET and PTT.
The invention relates to a composite yarn prepared by blending SBA-3-loaded nano-silver modified Eco Circle plant fiber bio-based fiber, nano-zinc oxide loaded gold modified bio-based polyamide 56 fiber and SPH composite elastic fiber. In the breathable moisture-conducting bacteriostatic biomass composite yarn, SPH composite self-curling elastic fibers are used as inner cores, so that the elasticity of the composite yarn is reflected; the two modified bio-based fibers are wrapped on the surface layer of the composite yarn, so that the air permeability, moisture permeability and bacteriostasis effects of the composite yarn are embodied.
Claims (7)
1. A preparation method of breathable moisture-conductive bacteriostatic biomass yarn is characterized by comprising the following steps of: preparing a multilayer structure composite yarn by adopting a parallel spinning machine, additionally arranging a feeding device at a front roller of a drafting area of the parallel spinning machine, feeding SBA-3 loaded nano silver modified Eco Circle plant fiber, coating SPH composite elastic fiber fed from a rear roller on the inner layer of the yarn, and finally wrapping a sliver by using a nano zinc oxide loaded gold modified bio-based polyamide 56 fiber filament on a hollow spindle to form the breathable moisture-conducting bacteriostatic biomass composite yarn;
in order to improve the air permeability of the air-permeable, moisture-conducting and bacteriostatic biomass composite yarn, the composite yarn is placed in hot water at 100 ℃ for treatment for 30min by utilizing the difference of the heat shrinkage rates of the three fibers, and the heat shrinkage rate of the PTT component in the SPH composite elastic fiber can reach 13-16%, so that the composite yarn is in a three-dimensional structure;
the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber comprises the following steps: (1) preparing an SBA-3 loaded nano-silver material; (2) preparing SBA-3 load nano-silver modified Eco Circle plant fiber bio-based master batch; (3) preparing SBA-3 load nano-silver modified Eco Circle plant fiber bio-based fiber;
the SBA-3 load nano-silver material is prepared by the following steps: the SBA-3 load nano-silver material is prepared by adopting a direct low-temperature hydrothermal synthesis method, and the specific operation is as follows: adding 5-8g of SBA-3 mesoporous molecular sieve into 100mL of nano silver ethanol solution with the mass concentration of 30% to form suspension, adjusting the pH to 8-10 by using 2moL/L of NaOH solution, continuously stirring for 20min, performing ultrasonic oscillation for 2h at 30-45 ℃ by using an ultrasonic generator with the frequency of 50KHz, centrifuging for 20min at 3500r/min, and washing the obtained precipitate for 2-5 times by using absolute ethyl alcohol; adding deionized water, reacting at 120 ℃ for 16h, naturally cooling to room temperature, washing the product obtained by the reaction with absolute ethyl alcohol for 2-5 times, drying at 60 ℃ for 12h, grinding and sieving with a 200-mesh sieve to obtain the SBA-3 supported nano-silver material.
2. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 1, which is characterized in that: the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based master batch comprises the following specific operations: firstly, grinding Eco Circle plant fiber bio-based slices into powder by using a plastic pulverizer, adding 50-60 parts by weight of the bio-based slices, and adding the other materials as follows: 30-35 parts of SBA-3 loaded nano silver, 8-12 parts of antioxidant, 5-10 parts of COREXIT dispersant and 2-5 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then cutting into particles.
3. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 1, which is characterized in that: the preparation method of the SBA-3 loaded nano-silver modified Eco Circle plant fiber bio-based fiber comprises the following specific operations: melt spinning of fibers: selecting a multi-blade special-shaped six-hole spinneret plate, wherein the cross section of the processed fiber is in a multi-blade petal shape, the equivalent diameter of the special-shaped fiber is 18-22 mu m, and the relative radial special-shaped degree is 17-21%.
4. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 1, which is characterized in that: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber comprises the following steps: (1) preparing a nano zinc oxide load gold material; (2) preparing nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch; (3) and preparing the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber.
5. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 4, characterized by comprising the following steps of: the preparation of the nano zinc oxide load gold material comprises the steps of taking nano zinc oxide as a carrier, adsorbing nano gold on the carrier, and preparing the nano zinc oxide load gold material with the antibacterial effect; the specific operation is as follows: adding 5g of nano zinc oxide into 100mL of deionized water, magnetically stirring for 10min, carrying out ultrasonic oscillation at 20-25 ℃ for 1h by using an ultrasonic generator with the frequency of 40KHz to obtain a suspension, transferring the suspension into a flask, adding 100mL of 5mmol/L chloroauric acid solution, magnetically stirring for 800r/min, heating to 85 ℃, keeping the temperature for 3-5min, dropwise adding 20mL of 10mmol/L sodium citrate as a reducing agent, stopping heating after dropwise adding, continuously stirring for 10min, standing and cooling to room temperature, carrying out suction filtration on a lower-layer precipitate, washing with absolute ethyl alcohol, drying at 100 ℃, grinding, and sieving with a 200-mesh sieve to obtain the nano zinc oxide loaded gold material.
6. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 4, characterized by comprising the following steps of: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber master batch comprises the following specific operations: firstly, slicing and grinding the bio-based polyamide 56 into powder by using a plastic pulverizer, adding 60-65 parts by weight of the bio-based polyamide, and adding other materials: 20-25 parts of nano zinc oxide loaded gold, 10-20 parts of antistatic agent, 5-10 parts of COREXIT dispersing agent and 2-5 parts of lubricant, stirring and blending, drying at 60 ℃ in a dynamic vacuum drying oven, placing in a double-screw composite spinning machine for extrusion, cooling and then cutting into granules.
7. The preparation method of the breathable, moisture-conductive and bacteriostatic biomass yarn according to claim 4, characterized by comprising the following steps of: the preparation method of the nano zinc oxide loaded gold modified bio-based polyamide 56 fiber comprises the following specific operations: selecting a multi-blade special-shaped six-hole spinneret plate, wherein the cross section of the processed fiber is in a multi-blade petal shape, the equivalent diameter of the special-shaped fiber is 20-25 mu m, and the relative radial special-shaped degree is 21-26%.
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