阅读说明：本技术 一种含艾草活性成分的es大生物纤维 (ES macrobio fiber containing wormwood active ingredient ) 是由 黄效华 甄丽 穆伟华 于 2020-12-15 设计创作，主要内容包括：本发明提供一种含艾草活性成分的ES大生物纤维,包括步骤：制备艾草提取物、制备含艾草提取物的改性剂、制备皮层材料、制备芯层材料、复合纺丝、后处理。本发明的含艾草活性成分的ES大生物纤维对大肠杆菌抑菌率能达到98.4%,对金黄色葡萄球菌抑菌率能达到98.5%,对白色念珠菌的抑菌率能达到98.1%；纤度为2.24-2.35dtex,断裂强度为3.0-3.5cN/dtex,断裂伸长率为91.6%-92.5%,回潮率为0.23%-0.26%；经过100次标准洗涤后,对大肠杆菌抑菌率仍能达到95.4%,对金黄色葡萄球菌抑菌率仍能达到95.5%,对白色念珠菌的抑菌率仍能达到96.1%。(The invention provides an ES macrobio fiber containing wormwood active ingredients, which comprises the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment. The ES large biological fiber containing the wormwood active ingredient can achieve the bacteriostasis rate of 98.4 percent on escherichia coli, 98.5 percent on staphylococcus aureus and 98.1 percent on candida albicans; the titer is 2.24-2.35dtex, the breaking strength is 3.0-3.5cN/dtex, the elongation at break is 91.6-92.5%, and the moisture regain is 0.23-0.26%; after 100 standard washes, the bacteriostatic rate of the antibacterial agent for escherichia coli still can reach 95.4%, the bacteriostatic rate for staphylococcus aureus still can reach 95.5%, and the bacteriostatic rate for candida albicans still can reach 96.1%.)

1. An ES macrobio fiber containing wormwood active ingredients, which is characterized by comprising the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment;

the preparation method comprises the steps of mixing porous silica gel, the wormwood extract and cationic polyacrylamide according to the mass ratio of 1:5:6, adding deionized water after the porous silica gel, the wormwood extract and the cationic polyacrylamide are uniformly mixed, and stirring at 50 ℃ for 30 minutes at the stirring speed of 70 rpm; and then, increasing the temperature to 65 ℃, adding the anionic polyacrylamide, and stirring for 20 minutes, wherein the stirring speed is 100rpm, and the mass ratio of the porous silica gel to the anionic polyacrylamide is 1: 2; then spray drying is carried out to obtain the modifier containing the wormwood extract.

2. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the wormwood extract is prepared by selecting fresh wormwood leaves, soaking the fresh wormwood leaves in 0.5mol/L sodium sulfate solution for 3 hours, cleaning the wormwood leaves with deionized water, drying the wormwood leaves at 82 ℃, and then putting the wormwood leaves into a pulverizer to pulverize into 100-mesh wormwood powder; performing supercritical carbon dioxide extraction on the wormwood powder, wherein the extraction temperature is 40 ℃, the extraction pressure is 40MPa, the extraction time is 2 hours, the flow of carbon dioxide in the extraction process is 700 kg/hour, an entrainer n-octane is added in the extraction process, and the mass ratio of the entrainer n-octane to the wormwood powder is 3: 50; carrying out secondary extraction on the residue to obtain secondary extraction liquid through primary extraction liquid and residue obtained after extraction, wherein the temperature of the secondary extraction is 50 ℃, the extraction pressure is 50MPa, the extraction time is 4 hours, the flow of carbon dioxide in the secondary extraction process is 800 kg/h, an entrainer acetone is added in the secondary extraction process, and the mass ratio of the entrainer acetone to the wormwood powder is 1: 40; and uniformly mixing the primary extraction liquid and the secondary extraction liquid, and then carrying out spray drying to obtain the wormwood extract, wherein the air inlet temperature of the spray drying is 170 ℃, the rotating speed of a material pump is 620 revolutions per minute, the air outlet temperature is 80 ℃, and the air delivery temperature is 60 ℃.

3. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the cationic polyacrylamide has a molecular weight of 1000 ten thousand, an ionic degree of 20-50%, and a solid content of 90% or more.

4. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the anionic polyacrylamide has a molecular weight of 1200 ten thousand, a degree of hydrolysis of 28%, and a solid content of 90% or more.

5. The ES macrobio fiber containing the wormwood active ingredient as claimed in claim 1, wherein the porous silica gel has a particle size of 0.7-0.9 μm, a pore volume of 1.8-2.0cm3/g, a specific surface area of 500-600m2/g, and a pore diameter of 110-180 nm.

6. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the porous silica gel is prepared by the following steps: mixing a 50% silicon dioxide solution with 92.5% concentrated sulfuric acid, and controlling the mass ratio of the two solutions to be 2: 3, stirring for 2 hours at 50 ℃ to obtain silicic acid colloid; then spraying silicic acid colloid into mineral oil under the pressure of 0.1MPa, aging for 1 hour, calcining for 1.5 hours at 400 ℃, adding into 1mol/L sodium bicarbonate solution, soaking for 1 hour, washing with deionized water, continuing soaking into 1mol/L sodium bicarbonate solution, heating to 70 ℃, and heating for 30 min; then grinding into porous silica gel with particle size of 0.7-0.9 μm.

7. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the skin layer material is prepared by adding PE slices, wormwood extract-containing modifier and other fillers into a feed inlet of a twin-screw device, performing melt extrusion blending, and performing melt extrusion granulation in a twin-screw extruder to obtain master batch.

8. The ES macrobio fiber containing wormwood active ingredient according to claim 7, wherein the master batch comprises, in parts by weight: 53 parts of PE slices, 22 parts of wormwood extract-containing functional modifier, 6 parts of calcium stearate, 3 parts of maleic anhydride graft compatilizer, 3 parts of sodium carbonate, 2 parts of quaternary ammonium salt, 6 parts of talcum powder, 4 parts of sodium chloride and 1 part of polyvinyl alcohol.

9. The ES macrobio fiber containing wormwood active ingredient according to claim 1, wherein the core layer material is prepared by uniformly mixing a raw material mixture consisting of dried high-density polypropylene resin slices, a toughening agent, a reinforcing agent and the like at a high speed, and then putting the mixture into a closed internal mixer for pressure internal mixing for 30min under the conditions of 1.2MPa pressure and 180 ℃.

10. The ES macrobio fiber containing wormwood active ingredient according to claim 9, wherein the raw material mixture comprises, in parts by weight: 61 parts of high-density polypropylene resin slices, 10 parts of chemical fiber-grade titanium dioxide, 7 parts of polyvinyl acetal resin, 10 parts of zinc stearate, 6 parts of sodium thiosulfate, 2 parts of magnesium sulfate, 2 parts of maleic anhydride grafted compatilizer and 2 parts of calcium carbonate.

Technical Field

The invention relates to the technical field of ES fibers, in particular to an ES macrobiotic fiber containing an wormwood active ingredient.

Background

The ES fiber belongs to a bi-component skin-core structure composite fiber, belongs to a high-end variety in differential fiber, and has low melting point and good flexibility of skin tissue, and high melting point and high strength of core tissue. After the ES fiber is subjected to heat treatment, a part of the skin layer is melted to play a bonding role, and the rest of the ES fiber still keeps a fiber state and has the characteristic of small heat shrinkage rate. The fiber is especially suitable for producing sanitary materials, warm-keeping filling materials, filtering materials and other products by a hot air penetration process.

Along with the increase of income which can be dominated by people and the change of infant care concept, especially the continuous improvement of the safety consciousness of infants, the domestic demand for high-quality high-end products and differentiated products is increased, the expansion of the demand scale of the ES fibers is driven, and higher requirements on the antibacterial property, the comfort level, the air permeability and the like of the ES fibers are also met.

Patent CN111118656A discloses an ES fiber containing wormwood extract and a preparation method thereof, wherein the content of wormwood extract in the ES fiber is 0.1-5%, and the preparation method comprises the steps of preparation of a functional modifier containing wormwood extract, preparation of a skin layer material, preparation of a core layer material, composite spinning and post-treatment. However, the wormwood extract powder used by the ES fiber is extracted by using a traditional method, and the impurities in the wormwood extract powder are more, so that the bacteriostatic effect and the air permeability of the ES fiber are influenced.

The patent CN106943618B discloses a wormwood health care sanitary towel and a preparation method thereof, the wormwood health care sanitary towel comprises moxa, antibacterial fiber and ES fiber, and the antibacterial fiber is mainly prepared from the following raw materials in parts by weight: 50-60 parts of carboxymethyl chitosan, 0.2-0.6 part of pipewort, 2-6 parts of mint, 1-2 parts of persimmon leaf, 0.5-2.5 parts of black tea, 0.5-1 part of cinnamon and 1-2 parts of notopterygium root. The patent does not add moxa directly to the antibacterial fiber or the ES fiber, and the effect on the improvement of the antibacterial property is not prominent, and the antibacterial effect is not durable.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides the ES macrobio fiber containing the wormwood active ingredient, so as to improve the antibacterial property, the fiber strength and the air permeability of fabrics of the ES fiber, enable the ES fiber to be more fluffy, and improve the antibacterial persistence and the water resistance of the ES fiber.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

an ES macrobio fiber containing wormwood active ingredients comprises the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment.

The preparation method comprises the steps of selecting fresh folium artemisiae argyi, soaking the fresh folium artemisiae argyi in 0.5mol/L sodium sulfate solution for 3-5 hours, cleaning the folium artemisiae argyi with deionized water, drying the folium artemisiae argyi at 82-90 ℃, and then putting the folium artemisiae argyi into a crusher to be crushed into 100-mesh 120-mesh folium artemisiae argyi powder. Performing supercritical carbon dioxide extraction on the wormwood powder, wherein the extraction temperature is 40-45 ℃, the extraction pressure is 40-45MPa, the extraction time is 2-2.5 hours, the flow of carbon dioxide in the extraction process is 700-750 kg/h, an entrainer n-octane is added in the extraction process, and the mass ratio of the entrainer n-octane to the wormwood powder is 3: 50. performing secondary extraction on the residue to obtain secondary extraction liquid, wherein the temperature of the secondary extraction is 50-55 ℃, the extraction pressure is 50-55MPa, the extraction time is 4-4.5 hours, the flow of carbon dioxide in the secondary extraction process is 800-850 kg/h, an entrainer acetone is added in the secondary extraction process, and the mass ratio of the entrainer acetone to the wormwood powder is 1: 40. and uniformly mixing the primary extraction liquid and the secondary extraction liquid, and then carrying out spray drying to obtain the wormwood extract, wherein the air inlet temperature of the spray drying is 170-180 ℃, the material pump rotating speed is 620-640 r/min, the air outlet temperature is 80-85 ℃, and the air delivery temperature is 60-65 ℃.

The preparation method comprises the steps of mixing porous silica gel, the wormwood extract and cationic polyacrylamide according to the mass ratio of 1 (5-7) to (6-9), adding deionized water after the porous silica gel, the wormwood extract and the cationic polyacrylamide are uniformly mixed, and stirring for 30-35 minutes at 50-60 ℃, wherein the stirring speed is 70-80 rpm; then, after the temperature is increased to 65-70 ℃, adding the anionic polyacrylamide, and stirring for 20-25 minutes, wherein the stirring speed is 100-: (2-3); then spray drying is carried out to obtain the modifier containing the wormwood extract.

The molecular weight of the cationic polyacrylamide is 1000 ten thousand, the ionic degree is 20-50%, and the solid content is more than or equal to 90%.

The molecular weight of the anionic polyacrylamide is 1200 ten thousand, the hydrolysis degree is 28%, and the solid content is more than or equal to 90%.

The particle size of the porous silica gel is 0.7-0.9 μm, the pore volume is 1.8-2.0cm3/g, the specific surface area is 500-600m2/g, and the pore diameter is 110-180 nm.

The preparation method of the porous silica gel comprises the following steps: mixing a 50% silicon dioxide solution with 92.5% concentrated sulfuric acid, and controlling the mass ratio of the two solutions to be 2: (3-5), stirring for 2-3 hours at 50-55 ℃ to obtain silicic acid colloid; then silicic acid colloid is sprayed into mineral oil under the pressure of 0.1MPa for aging for 1-1.5 hours, then calcined for 1.5-2 hours at the temperature of 400-450 ℃, then added into 1mol/L sodium bicarbonate solution for soaking for 1 hour, cleaned by deionized water and then continuously soaked into 1mol/L sodium bicarbonate solution, heated to 70-80 ℃, and heated for 30-40 minutes; then grinding into porous silica gel with the particle size of 4-6 μm.

The preparation method comprises the following steps of preparing a skin material, adding PE slices, a modifier containing a wormwood extract and other fillers into a feed inlet of a double-screw device, carrying out melt extrusion blending, and then carrying out melt extrusion granulation in a double-screw extruder to obtain master batches;

the master batch comprises the following components in parts by weight: 50-60 parts of PE slices, 20-30 parts of wormwood extract-containing functional modifier, 5-10 parts of calcium stearate, 2-3 parts of maleic anhydride graft compatilizer, 3-5 parts of sodium carbonate, 2-3 parts of quaternary ammonium salt, 5-6 parts of talcum powder, 4-6 parts of sodium chloride and 1-2 parts of polyvinyl alcohol.

The melt extrusion is carried out, wherein the extrusion pressure in the double screw is 13-15MPa, and the extrusion temperature is 180-190 ℃.

The core layer material is prepared by uniformly mixing the dried high-density polypropylene resin slices with a raw material mixture consisting of a toughening agent, a reinforcing agent and the like at a high speed, putting the mixture into a closed internal mixer, and carrying out pressure banburying for 30-40min under the conditions of the pressure of 1.2-1.5MPa and the temperature of 180-200 ℃.

The raw material mixture comprises the following components in parts by weight: 60-70 parts of high-density polypropylene resin slices, 10-20 parts of chemical fiber-grade titanium dioxide, 2-8 parts of polyvinyl acetal resin, 10-20 parts of zinc stearate, 6-10 parts of sodium thiosulfate, 2-4 parts of magnesium sulfate, 2-3 parts of maleic anhydride grafted compatilizer and 2-3 parts of calcium carbonate.

The composite spinning comprises the steps that core layer materials firstly enter a double-stage filter for melt filtration to obtain core layer melts; then adding the skin layer material into a screw extruder, and extruding skin layer melt at the temperature of 280-300 ℃ and under the pressure of 0.4-0.5 MPa; the two-component melt enters a composite spinning machine component through a metering pump, and is compounded in the composite spinning component and then is sprayed out of the skin-core layer structure fiber through a spinneret plate.

And after the post-treatment, winding, drafting, oiling and curling the fiber tows with the sheath-core structure into sheath-core fiber yarns, cooling the tows by adopting cross air blowing, then performing thermal relaxation setting, and cutting after drying to obtain the ES macrobio-fiber containing the wormwood active ingredient.

The temperature of the cross air is 26-28 ℃, the humidity is 50-53%, and the air speed is 1.5-1.8 m/s; and (3) performing thermal relaxation setting at the temperature of 150-170 ℃, controlling the relaxation rate at 50-55%, and drying and cutting to obtain the wormwood modified composite ES fiber.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the ES macrobiotic fiber containing the wormwood active ingredient prepared by the preparation method, the wormwood added in the process of preparing the modifier containing the wormwood extract can improve the antibacterial property of the fiber, so that the antibacterial rate of the ES macrobiotic fiber on escherichia coli can reach 98.4%, the antibacterial rate on staphylococcus aureus can reach 98.5%, and the antibacterial rate on candida albicans can reach 98.1%;

(2) the ES large biological fiber containing the wormwood active ingredients, which is prepared by the preparation method, has the fineness of 2.24-2.35dtex, the breaking strength of 3.0-3.5cN/dtex, the elongation at break of 91.6-92.5 percent and the moisture regain of 0.23-0.26 percent.

(3) According to the ES macrobio-fiber containing the wormwood active ingredient prepared by the preparation method, the antibacterial durability can be improved by adding the porous silica gel in the process of preparing the modifier containing the wormwood extract, after 100 times of standard washing, the antibacterial rate of escherichia coli can still reach 95.4%, the antibacterial rate of staphylococcus aureus can still reach 95.5%, and the antibacterial rate of candida albicans can still reach 96.1%;

(4) the ES large biological fiber containing the wormwood active ingredient prepared by the preparation method of the invention is added with the porous silica gel in the process of preparing the modifier containing the wormwood extract, so that the bulkiness and elasticity of the fiber can be improved;

(5) the ES macrobio fiber containing the wormwood active ingredient prepared by the preparation method of the invention has the advantages that the modifier containing the wormwood extract in the cortex material can improve the air permeability of the fiber, and the air permeability of the ES fiber is improved to 600 mm/s;

(6) the ES macrobio fiber containing the wormwood active ingredient prepared by the preparation method of the invention has the advantage that the modifier containing the wormwood extract in the cortex material can improve the moisture regain of the fiber, thereby improving the moisture absorption of the fiber.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described.

Example 1

An ES macrobio fiber containing wormwood active ingredients comprises the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment.

The preparation method comprises the steps of selecting fresh folium artemisiae argyi, soaking the fresh folium artemisiae argyi in 0.5mol/L sodium sulfate solution for 3 hours, cleaning the folium artemisiae argyi with deionized water, drying the folium artemisiae argyi at 82 ℃, and then putting the folium artemisiae argyi into a pulverizer to pulverize the folium artemisiae argyi into 100 meshes of folium artemisiae argyi powder. Performing supercritical carbon dioxide extraction on the wormwood powder, wherein the extraction temperature is 40 ℃, the extraction pressure is 40MPa, the extraction time is 2 hours, the flow of carbon dioxide in the extraction process is 700 kg/hour, an entrainer n-octane is added in the extraction process, and the mass ratio of the entrainer n-octane to the wormwood powder is 3: 50. carrying out secondary extraction on the residue to obtain secondary extraction liquid through primary extraction liquid and residue obtained after extraction, wherein the temperature of the secondary extraction is 50 ℃, the extraction pressure is 50MPa, the extraction time is 4 hours, the flow of carbon dioxide in the secondary extraction process is 800 kg/h, an entrainer acetone is added in the secondary extraction process, and the mass ratio of the entrainer acetone to the wormwood powder is 1: 40. and uniformly mixing the primary extraction liquid and the secondary extraction liquid, and then carrying out spray drying to obtain the wormwood extract, wherein the air inlet temperature of the spray drying is 170 ℃, the rotating speed of a material pump is 620 revolutions per minute, the air outlet temperature is 80 ℃, and the air delivery temperature is 60 ℃.

The preparation method comprises the steps of mixing porous silica gel, the wormwood extract and cationic polyacrylamide according to the mass ratio of 1:5:6, adding deionized water after the porous silica gel, the wormwood extract and the cationic polyacrylamide are uniformly mixed, and stirring at 50 ℃ for 30 minutes at the stirring speed of 70 rpm; and then, increasing the temperature to 65 ℃, adding the anionic polyacrylamide, and stirring for 20 minutes, wherein the stirring speed is 100rpm, and the mass ratio of the porous silica gel to the anionic polyacrylamide is 1: 2; then spray drying is carried out to obtain the modifier containing the wormwood extract.

The molecular weight of the cationic polyacrylamide is 1000 ten thousand, the ionic degree is 20-50%, and the solid content is more than or equal to 90%.

The molecular weight of the anionic polyacrylamide is 1200 ten thousand, the hydrolysis degree is 28%, and the solid content is more than or equal to 90%.

The particle size of the porous silica gel is 0.7-0.9 μm, the pore volume is 1.8-2.0cm3/g, the specific surface area is 500-600m2/g, and the pore diameter is 110-180 nm.

The preparation method of the porous silica gel comprises the following steps: mixing a 50% silicon dioxide solution with 92.5% concentrated sulfuric acid, and controlling the mass ratio of the two solutions to be 2: 3, stirring for 2 hours at 50 ℃ to obtain silicic acid colloid; then spraying silicic acid colloid into mineral oil under the pressure of 0.1MPa, aging for 1 hour, calcining for 1.5 hours at 400 ℃, adding into 1mol/L sodium bicarbonate solution, soaking for 1 hour, washing with deionized water, continuing soaking into 1mol/L sodium bicarbonate solution, heating to 70 ℃, and heating for 30 min; then grinding into porous silica gel with particle size of 0.7-0.9 μm.

The preparation method comprises the following steps of preparing a skin material, adding PE slices, a modifier containing a wormwood extract and other fillers into a feed inlet of a double-screw device, carrying out melt extrusion blending, and then carrying out melt extrusion granulation in a double-screw extruder to obtain master batches;

the master batch comprises the following components in parts by weight: 53 parts of PE slices, 22 parts of wormwood extract-containing functional modifier, 6 parts of calcium stearate, 3 parts of maleic anhydride graft compatilizer, 3 parts of sodium carbonate, 2 parts of quaternary ammonium salt, 6 parts of talcum powder, 4 parts of sodium chloride and 1 part of polyvinyl alcohol.

And (3) performing melt extrusion, wherein the extrusion pressure in a double screw is 13MPa, and the extrusion temperature is 180 ℃.

The preparation method comprises the steps of uniformly mixing a raw material mixture consisting of a dried high-density polypropylene resin slice, a toughening agent, a reinforcing agent and the like at a high speed, putting the mixture into a closed internal mixer, and carrying out pressurization and internal mixing for 30min under the conditions of 1.2MPa pressure and 180 ℃.

The raw material mixture comprises the following components in parts by weight: 61 parts of high-density polypropylene resin slices, 10 parts of chemical fiber-grade titanium dioxide, 7 parts of polyvinyl acetal resin, 10 parts of zinc stearate, 6 parts of sodium thiosulfate, 2 parts of magnesium sulfate, 2 parts of maleic anhydride grafted compatilizer and 2 parts of calcium carbonate.

The composite spinning comprises the steps that core layer materials firstly enter a double-stage filter for melt filtration to obtain core layer melts; then adding the skin layer material into a screw extruder, and extruding a skin layer melt at the temperature of 280 ℃ and under the pressure of 0.4 MPa; the two-component melt enters a composite spinning machine component through a metering pump, and is compounded in the composite spinning component and then is sprayed out of the skin-core layer structure fiber through a spinneret plate.

And after the post-treatment, winding, drafting, oiling and curling the fiber tows with the sheath-core structure into sheath-core fiber yarns, cooling the tows by adopting cross air blowing, then performing thermal relaxation setting, and cutting after drying to obtain the ES macrobio-fiber containing the wormwood active ingredient.

The air temperature of the cross air blow is 26 ℃, the humidity is 50 percent, and the air speed is 1.5 m/s; and (3) performing thermal relaxation setting at the temperature of 150 ℃ and the relaxation rate controlled at 50%, and drying and cutting to obtain the wormwood modified composite ES fiber.

Example 2:

an ES macrobio fiber containing wormwood active ingredients comprises the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment.

The preparation method comprises the steps of selecting fresh folium artemisiae argyi, soaking the fresh folium artemisiae argyi in 0.5mol/L sodium sulfate solution for 4 hours, cleaning the folium artemisiae argyi with deionized water, drying the folium artemisiae argyi at 85 ℃, and then putting the folium artemisiae argyi into a pulverizer to pulverize the folium artemisiae argyi into 110-mesh folium artemisiae argyi powder. Performing supercritical carbon dioxide extraction on the wormwood powder, wherein the extraction temperature is 43 ℃, the extraction pressure is 43MPa, the extraction time is 2.2 hours, the flow of carbon dioxide in the extraction process is 720 kg/hour, an entrainer n-octane is added in the extraction process, and the mass ratio of the entrainer n-octane to the wormwood powder is 3: 50. carrying out secondary extraction on the residue to obtain secondary extraction liquid through primary extraction liquid and residue obtained after extraction, wherein the temperature of the secondary extraction is 53 ℃, the extraction pressure is 53MPa, the extraction time is 4.3 hours, the flow of carbon dioxide in the secondary extraction process is 830 kg/h, an entrainer acetone is added in the secondary extraction process, and the mass ratio of the entrainer acetone to the wormwood powder is 1: 40. and uniformly mixing the primary extraction liquid and the secondary extraction liquid, and then carrying out spray drying to obtain the wormwood extract, wherein the air inlet temperature of the spray drying is 175 ℃, the rotating speed of a material pump is 630 rpm, the air outlet temperature is 82 ℃, and the air delivery temperature is 62 ℃.

The preparation method comprises the steps of mixing porous silica gel, the wormwood extract and cationic polyacrylamide according to the mass ratio of 1:6:8, adding deionized water after the porous silica gel, the wormwood extract and the cationic polyacrylamide are uniformly mixed, and stirring at the temperature of 55 ℃ for 32 minutes at the stirring speed of 75 rpm; and then, increasing the temperature to 67 ℃, adding the anionic polyacrylamide, and stirring for 22 minutes, wherein the stirring speed is 105rpm, and the mass ratio of the porous silica gel to the anionic polyacrylamide is 1: 2; then spray drying is carried out to obtain the modifier containing the wormwood extract.

The molecular weight of the cationic polyacrylamide is 1000 ten thousand, the ionic degree is 20-50%, and the solid content is more than or equal to 90%.

The molecular weight of the anionic polyacrylamide is 1200 ten thousand, the hydrolysis degree is 28%, and the solid content is more than or equal to 90%.

The particle size of the porous silica gel is 0.7-0.9 μm, the pore volume is 1.8-2.0cm3/g, the specific surface area is 500-600m2/g, and the pore diameter is 110-180 nm.

The preparation method of the porous silica gel comprises the following steps: mixing 50 mass percent of silicon dioxide solution with 92.5 mass percent of concentrated sulfuric acid, controlling the mass ratio of the silicon dioxide solution to the concentrated sulfuric acid to be 1:2, and stirring for 2.5 hours at 52 ℃ to obtain silicic acid colloid; then spraying silicic acid colloid into mineral oil under the pressure of 0.1MPa, aging for 1.2 hours, calcining at 420 ℃ for 1.7 hours, adding into 1mol/L sodium bicarbonate solution, soaking for 1 hour, washing with deionized water, continuing soaking into 1mol/L sodium bicarbonate solution, heating to 75 ℃, and heating for 35 min; then grinding into porous silica gel with particle size of 0.7-0.9 μm.

The preparation method comprises the following steps of preparing a skin material, adding PE slices, a modifier containing a wormwood extract and other fillers into a feed inlet of a double-screw device, carrying out melt extrusion blending, and then carrying out melt extrusion granulation in a double-screw extruder to obtain master batches;

the master batch comprises the following components in parts by weight: 55 parts of PE slices, 21 parts of wormwood extract-containing functional modifier, 7 parts of calcium stearate, 2 parts of maleic anhydride graft compatilizer, 4 parts of sodium carbonate, 2 parts of quaternary ammonium salt, 5 parts of talcum powder, 4 parts of sodium chloride and 1 part of polyvinyl alcohol.

And (3) performing melt extrusion, wherein the extrusion pressure in a double screw is 14MPa, and the extrusion temperature is 185 ℃.

The preparation method comprises the steps of uniformly mixing a raw material mixture consisting of a dried high-density polypropylene resin slice, a toughening agent, a reinforcing agent and the like at a high speed, putting the mixture into a closed internal mixer, and carrying out pressurization and internal mixing for 35min under the conditions of 1.3MPa pressure and 190 ℃.

The raw material mixture comprises the following components in parts by weight: 61 parts of high-density polypropylene resin slices, 11 parts of chemical fiber-grade titanium dioxide, 2 parts of polyvinyl acetal resin, 10 parts of zinc stearate, 6 parts of sodium thiosulfate, 4 parts of magnesium sulfate, 3 parts of maleic anhydride grafted compatilizer and 3 parts of calcium carbonate.

The composite spinning comprises the steps that core layer materials firstly enter a double-stage filter for melt filtration to obtain core layer melts; then adding the skin layer material into a screw extruder, and extruding skin layer melt at 290 ℃ and 0.5 MPa; the two-component melt enters a composite spinning machine component through a metering pump, and is compounded in the composite spinning component and then is sprayed out of the skin-core layer structure fiber through a spinneret plate.

And after the post-treatment, winding, drafting, oiling and curling the fiber tows with the sheath-core structure into sheath-core fiber yarns, cooling the tows by adopting cross air blowing, then performing thermal relaxation setting, and cutting after drying to obtain the ES macrobio-fiber containing the wormwood active ingredient.

The air temperature of the cross air blower is 27 ℃, the humidity is 52 percent, and the air speed is 1.6 m/s; and (3) performing thermal relaxation setting at the temperature of 160 ℃ and the relaxation rate controlled at 52%, drying and cutting to obtain the wormwood modified composite ES fiber.

Example 3:

an ES macrobio fiber containing wormwood active ingredients comprises the following steps: preparing a wormwood extract, preparing a modifier containing the wormwood extract, preparing a skin layer material, preparing a core layer material, carrying out composite spinning and carrying out post-treatment.

The preparation method comprises the steps of selecting fresh folium artemisiae argyi, soaking the fresh folium artemisiae argyi in 0.5mol/L sodium sulfate solution for 5 hours, cleaning the folium artemisiae argyi with deionized water, drying the folium artemisiae argyi at 90 ℃, and then putting the folium artemisiae argyi into a pulverizer to pulverize the folium artemisiae argyi into 120-mesh folium artemisiae argyi powder. Performing supercritical carbon dioxide extraction on the wormwood powder, wherein the extraction temperature is 45 ℃, the extraction pressure is 45MPa, the extraction time is 2.5 hours, the flow of carbon dioxide in the extraction process is 750 kg/h, an entrainer n-octane is added in the extraction process, and the mass ratio of the entrainer n-octane to the wormwood powder is 3: 50. carrying out secondary extraction on the residue to obtain secondary extraction liquid through primary extraction liquid and residue obtained after extraction, wherein the temperature of the secondary extraction is 55 ℃, the extraction pressure is 55MPa, the extraction time is 4.5 hours, the flow of carbon dioxide in the secondary extraction process is 850 kg/h, an entrainer acetone is added in the secondary extraction process, and the mass ratio of the entrainer acetone to the wormwood powder is 1: 40. and uniformly mixing the primary extraction liquid and the secondary extraction liquid, and then carrying out spray drying to obtain the wormwood extract, wherein the air inlet temperature of the spray drying is 180 ℃, the rotating speed of a material pump is 640 r/min, the air outlet temperature is 85 ℃, and the air delivery temperature is 65 ℃.

The preparation method comprises the steps of mixing porous silica gel, the wormwood extract and cationic polyacrylamide according to the mass ratio of 1:7:9, adding deionized water after the porous silica gel, the wormwood extract and the cationic polyacrylamide are uniformly mixed, and stirring at the temperature of 60 ℃ for 35 minutes at the stirring speed of 80 rpm; and then, increasing the temperature to 70 ℃, adding the anionic polyacrylamide, and stirring for 25 minutes, wherein the stirring speed is 110rpm, and the mass ratio of the porous silica gel to the anionic polyacrylamide is 1: 3; then spray drying is carried out to obtain the modifier containing the wormwood extract.

The molecular weight of the cationic polyacrylamide is 1000 ten thousand, the ionic degree is 20-50%, and the solid content is more than or equal to 90%.

The molecular weight of the anionic polyacrylamide is 1200 ten thousand, the hydrolysis degree is 28%, and the solid content is more than or equal to 90%.

The particle size of the porous silica gel is 0.7-0.9 μm, the pore volume is 1.8-2.0cm3/g, the specific surface area is 500-600m2/g, and the pore diameter is 110-180 nm.

The preparation method of the porous silica gel comprises the following steps: mixing a 50% silicon dioxide solution with 92.5% concentrated sulfuric acid, and controlling the mass ratio of the two solutions to be 2: 5, stirring for 3 hours at 55 ℃ to obtain silicic acid colloid; then spraying silicic acid colloid into mineral oil under the pressure of 0.1MPa, aging for 1.5 hours, calcining at 450 ℃ for 2 hours, adding into 1mol/L sodium bicarbonate solution, soaking for 1 hour, washing with deionized water, continuing soaking into 1mol/L sodium bicarbonate solution, heating to 80 ℃, and heating for 40 min; then grinding into porous silica gel with particle size of 0.7-0.9 μm.

The preparation method comprises the following steps of preparing a skin material, adding PE slices, a modifier containing a wormwood extract and other fillers into a feed inlet of a double-screw device, carrying out melt extrusion blending, and then carrying out melt extrusion granulation in a double-screw extruder to obtain master batches;

the master batch comprises the following components in parts by weight: 53 parts of PE slices, 23 parts of wormwood extract-containing functional modifier, 7 parts of calcium stearate, 2 parts of maleic anhydride graft compatilizer, 3 parts of sodium carbonate, 2 parts of quaternary ammonium salt, 5 parts of talcum powder, 4 parts of sodium chloride and 1 part of polyvinyl alcohol.

And (3) performing melt extrusion, wherein the extrusion pressure in a double screw is 15MPa, and the extrusion temperature is 190 ℃.

The preparation method comprises the steps of uniformly mixing a raw material mixture consisting of a dried high-density polypropylene resin slice, a toughening agent, a reinforcing agent and the like at a high speed, putting the mixture into a closed internal mixer, and carrying out pressure internal mixing for 40min under the conditions of 1.5MPa pressure and 200 ℃.

The raw material mixture comprises the following components in parts by weight: 66 parts of high-density polypropylene resin slices, 10 parts of chemical fiber-grade titanium dioxide, 2 parts of polyvinyl acetal resin, 10 parts of zinc stearate, 6 parts of sodium thiosulfate, 2 parts of magnesium sulfate, 2 parts of maleic anhydride grafted compatilizer and 2 parts of calcium carbonate.

The composite spinning comprises the steps that core layer materials firstly enter a double-stage filter for melt filtration to obtain core layer melts; then adding the skin layer material into a screw extruder, and extruding skin layer melt at the temperature of 300 ℃ and under the pressure of 0.5 MPa; the two-component melt enters a composite spinning machine component through a metering pump, and is compounded in the composite spinning component and then is sprayed out of the skin-core layer structure fiber through a spinneret plate.

And after the post-treatment, winding, drafting, oiling and curling the fiber tows with the sheath-core structure into sheath-core fiber yarns, cooling the tows by adopting cross air blowing, then performing thermal relaxation setting, and cutting after drying to obtain the ES macrobio-fiber containing the wormwood active ingredient.

The air temperature of the cross air blower is 28 ℃, the humidity is 53%, and the air speed is 1.8 m/s; and (3) performing thermal relaxation setting at the temperature of 170 ℃ and the relaxation rate of 55%, and drying and cutting to obtain the wormwood modified composite ES fiber.

Example 4:

the ES macrobio fiber containing the active ingredient of Artemisia argyi as described in examples 1-3 was used for the test, while comparative test 1-2 was set for comparison.

Comparative example 1: the preparation method of the ES macrobio fiber containing the wormwood active ingredient in example 1 is adopted, and the difference is that: omitting the 'preparation of a modifier containing the wormwood extract', and only carrying out 'preparation of the wormwood extract, preparation of a skin layer material, preparation of a core layer material, composite spinning and post-treatment', namely directly using the wormwood extract for preparing the skin layer material.

Comparative example 2: the preparation method of the ES macrobio fiber containing the wormwood active ingredient in example 1 is adopted, and the difference is that: the raw material mixture was not added with "magnesium sulfate and calcium carbonate" in the preparation of the core layer material.

The ES macrobio fiber containing the active ingredient of Artemisia argyi prepared in examples 1-3 and comparative examples 1-2 has the following properties:

all percentages used in the present invention are mass percentages unless otherwise indicated.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.