CN115652625A - Non-woven fabric with nano copper and alkannin and preparation method thereof - Google Patents
Non-woven fabric with nano copper and alkannin and preparation method thereof Download PDFInfo
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- CN115652625A CN115652625A CN202211426449.5A CN202211426449A CN115652625A CN 115652625 A CN115652625 A CN 115652625A CN 202211426449 A CN202211426449 A CN 202211426449A CN 115652625 A CN115652625 A CN 115652625A
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- 239000010949 copper Substances 0.000 title claims abstract description 61
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 61
- NEZONWMXZKDMKF-JTQLQIEISA-N Alkannin Chemical compound C1=CC(O)=C2C(=O)C([C@@H](O)CC=C(C)C)=CC(=O)C2=C1O NEZONWMXZKDMKF-JTQLQIEISA-N 0.000 title claims abstract description 53
- UNNKKUDWEASWDN-UHFFFAOYSA-N alkannin Natural products CC(=CCC(O)c1cc(O)c2C(=O)C=CC(=O)c2c1O)C UNNKKUDWEASWDN-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000004229 Alkannin Substances 0.000 title claims abstract description 32
- 235000019232 alkannin Nutrition 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000017 hydrogel Substances 0.000 claims abstract description 49
- 241001071917 Lithospermum Species 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 27
- 238000002791 soaking Methods 0.000 claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 150000001879 copper Chemical class 0.000 claims abstract description 10
- 239000012266 salt solution Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000007605 air drying Methods 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 230000001376 precipitating effect Effects 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 40
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 18
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229960005070 ascorbic acid Drugs 0.000 claims description 9
- 235000010323 ascorbic acid Nutrition 0.000 claims description 9
- 239000011668 ascorbic acid Substances 0.000 claims description 9
- 239000002075 main ingredient Substances 0.000 claims description 6
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 5
- 229940072056 alginate Drugs 0.000 claims description 5
- 229920000615 alginic acid Polymers 0.000 claims description 5
- 235000010443 alginic acid Nutrition 0.000 claims description 5
- KIUKXJAPPMFGSW-DNGZLQJQSA-N (2S,3S,4S,5R,6R)-6-[(2S,3R,4R,5S,6R)-3-Acetamido-2-[(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid Chemical compound CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 KIUKXJAPPMFGSW-DNGZLQJQSA-N 0.000 claims description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229910001431 copper ion Inorganic materials 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 229920002674 hyaluronan Polymers 0.000 claims description 3
- 229960003160 hyaluronic acid Drugs 0.000 claims description 3
- 239000012279 sodium borohydride Substances 0.000 claims description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 3
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 3
- 241001442052 Symphytum Species 0.000 claims description 2
- 235000005865 Symphytum officinale Nutrition 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 18
- 230000003078 antioxidant effect Effects 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 6
- 238000004108 freeze drying Methods 0.000 abstract description 6
- 239000003963 antioxidant agent Substances 0.000 abstract description 4
- 230000003110 anti-inflammatory effect Effects 0.000 abstract description 3
- 230000007794 irritation Effects 0.000 abstract description 3
- 230000004060 metabolic process Effects 0.000 abstract description 3
- 239000000049 pigment Substances 0.000 abstract description 3
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 238000011056 performance test Methods 0.000 description 8
- 229920000728 polyester Polymers 0.000 description 8
- 229920004933 Terylene® Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 235000006708 antioxidants Nutrition 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000005749 Copper compound Substances 0.000 description 2
- 150000001880 copper compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 229930182559 Natural dye Natural products 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003266 anti-allergic effect Effects 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 230000008558 metabolic pathway by substance Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000978 natural dye Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention discloses a non-woven fabric with nano copper and alkannin and a preparation method thereof, wherein the preparation method comprises the following steps: air drying radix Arnebiae, grinding, soaking in solvent, filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder; adding a reducing agent into the copper salt solution for reduction treatment, and then stirring, precipitating, standing and separating to obtain nano copper powder; adding a certain amount of nano copper powder and lithospermum extract powder into the hydrogel, and fully stirring to obtain pretreated hydrogel; and (3) immersing the non-woven fabric into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin. Copper in the non-woven fabric is antioxidant and can be discharged out of a body along with metabolism after entering a human body, and the nano-copper has excellent antibacterial performance; the alkannin has remarkable sterilizing and anti-inflammatory effects, can be used as a natural pigment, and has no irritation and harm to human body; has no damage to the non-woven fabric.
Description
Technical Field
The invention relates to the technical field of functional non-woven fabrics, in particular to a non-woven fabric with nano copper and alkannin and a preparation method thereof.
Background
The non-woven fabric is also called non-woven fabric, and is formed from oriented or random fibre, so that it is called fabric because of its appearance and some properties, and said non-woven fabric can break through the traditional spinning principle, and has the characteristics of short technological process, quick production speed, high yield, low cost, extensive application, extensive raw material source, moisture-proofing, air-permeable, flexible, light weight, non-combustion supporting, easy decomposition, non-toxic, non-irritant, rich colour, low cost and can be cyclically reused, etc.
Generally adopt the non-woven fabrics to carry out medical protection articles for use's preparation, but under the present non-woven fabrics majority condition, adopt filterable mode to protect, unable direct processing non-woven fabrics outer wall adnexed virus and bacterium, if use for a long time, will probably cause the bacterium to breed on the non-woven fabrics, serious probably causes the infection, secondly is that the non-woven fabrics can't be used repeatedly for a long time, use after a period, the filter effect of non-woven fabrics will descend, the durability is relatively poor, be unfavorable for recycling.
Copper is the third trace element in human body, copper compounds are basically soluble, copper is the active component of various enzymes, and copper entering human body can promote the synthesis of hemoglobin and participate in substance metabolism. Meanwhile, copper has excellent antibacterial, bactericidal, antiviral and antifungal properties and can promote the metabolism of the skin. The nano copper is easy to prepare and has better performance than copper.
Shikonin is the main effective component of radix Arnebiae, and has antiallergic, antioxidant, antibacterial, antiinflammatory, and immunity regulating effects. The pigment extracted from radix Arnebiae is used as natural dye in textile industry, and can reduce irritation and harm to human body.
There is a need for a method of uniformly dispersing copper and shikonin on a non-woven fabric, without any damage to the non-woven fabric, making copper less susceptible to air oxidation, and simultaneously retaining the original characteristics of copper and shikonin.
Disclosure of Invention
In view of the defects, the invention provides the non-woven fabric with the nano-copper and the alkannin and the preparation method thereof, copper in the non-woven fabric with the nano-copper and the alkannin is antioxidant, copper compounds can be dissolved, copper entering a human body can be discharged out of the body along with metabolism, and the nano-copper has excellent antibacterial performance; alkannin not only has remarkable sterilizing and anti-inflammatory effects, but also can be used as natural pigment, and is used in cosmetics, food and textile industries without irritation and harm to human body; the preparation method of the application has no damage to the non-woven fabric.
In order to achieve the purpose, the invention provides a preparation method of non-woven fabric with nano copper and shikonin, which comprises the following steps:
step 1: air drying radix Arnebiae, grinding, soaking in solvent, filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder;
and 2, step: adding a reducing agent into the copper salt solution for reduction treatment, and then stirring, precipitating, standing and separating to obtain nano copper powder;
and 3, step 3: adding a certain amount of nano copper powder and lithospermum extract powder into the hydrogel, and fully stirring to obtain pretreated hydrogel;
and 4, step 4: and (3) immersing the non-woven fabric into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin.
According to one aspect of the present invention, in the step 1, the soaking temperature is 20 to 60 ℃ and the soaking time is 0.5 to 4 hours.
According to one aspect of the invention, in the step 1, the solvent is ethanol, the concentration of the ethanol is 70-100%, and the mass ratio of the lithospermum to the ethanol is 1:2-10.
According to an aspect of the present invention, in the step 1, the soaking may be performed in an ultrasonic or microwave state.
According to an aspect of the invention, in the step 2, the copper salt solution is one or more of copper sulfate, copper chloride and copper nitrate, and the concentration of copper ions in the copper salt solution is 0.1-1mol/L.
According to one aspect of the invention, in the step 2, the reducing agent is one or more of sodium borohydride, sodium hypophosphite and ascorbic acid, and the concentration of the reducing agent is 0.02-2 mol/L.
According to one aspect of the invention, in the step 3, the content of the nano copper powder in the pretreated hydrogel (calculated by drying) is 5-20 wt%; the content of the lithospermum extract powder in the pretreated hydrogel (calculated according to the weight after drying) is 10-30 wt%.
According to an aspect of the present invention, in the step 1, the main ingredient of the comfrey extract powder is shikonin.
According to an aspect of the present invention, the hydrogel is any one of a hyaluronic acid hydrogel, an alginate hydrogel, and a cellulose hydrogel.
Based on the same invention concept, the invention also provides the non-woven fabric with the nano-copper and the alkannin prepared by any one of the preparation methods.
The invention has the beneficial effects that:
(1) The method is simple, short in process flow and easy for mass production;
(2) The hydrogel is used as a high molecular network system and is a good carrier; by immersing the non-woven fabric into the hydrogel containing the nano-copper powder and the lithospermum extract powder, the nano-copper and the shikonin can be uniformly distributed in the non-woven fabric and can go deep into the fiber, the distribution of the nano-copper and the shikonin is not influenced after the drying, the non-woven fabric is not damaged at all, the performance can be exerted durably and effectively, and the total content of the nano-copper can be well controlled.
(3) At present, the surface area of the nano-copper of the existing fiber product with the nano-copper is extremely increased, so that the fiber product is easily oxidized by air, and after the antibacterial agent is combined with alkannin, the antibacterial capability of the nano-copper is synergistically enhanced, and the antioxidant capability of the product can be improved.
Detailed Description
In order that the invention may be more readily understood, reference will now be made to the following examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention, and it should be understood that the described examples are only a portion of the examples of the present invention, rather than the entire scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless otherwise defined, the terms used hereinafter are consistent with the meaning understood by those skilled in the art; unless otherwise specified, the starting materials and reagents referred to herein may be purchased from commercial sources or prepared by known methods.
The invention provides a preparation method of a non-woven fabric with nano copper and alkannin, which comprises the following steps:
step 1: air drying radix Arnebiae, grinding, soaking in solvent, filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder; wherein the radix Arnebiae extract powder contains alkannin as main ingredient.
Preferably, the soaking temperature is 20-60 ℃, and the soaking time is 0.5-4h; preferably, the solvent is ethanol, the concentration of the ethanol is 70-100%, and the mass ratio of the lithospermum to the ethanol is 1:2-10; preferably, the soaking may be performed under ultrasonic or microwave conditions.
Step 2: adding a reducing agent into the copper salt solution for reduction treatment, and then stirring, precipitating, standing and separating to obtain nano copper powder;
preferably, the copper salt solution is one or more of copper sulfate, copper chloride and copper nitrate, and the concentration of copper ions in the copper salt solution is 0.1-1mol/L; preferably, the reducing agent is one or more of sodium borohydride, sodium hypophosphite and ascorbic acid, and the concentration of the reducing agent is 0.02-2 mol/L.
And step 3: adding a certain amount of nano copper powder and lithospermum extract powder into hydrogel, and fully stirring to obtain pretreated hydrogel;
preferably, the content of the nano copper powder in the pre-treated hydrogel (calculated by drying) is 5-20 wt%; the content of the lithospermum extract powder in the pretreated hydrogel (calculated according to the weight after drying) is 10-30 wt%; preferably, the hydrogel is any one of a hyaluronic acid hydrogel, an alginate hydrogel and a cellulose hydrogel.
It should be noted that the hydrogel is only a carrier, and the finally obtained non-woven fabric with the nano-copper and the shikonin is dried, so that the content of the nano-copper powder and the content of the hydrogel in the pre-treated hydrogel are calculated according to the weight of the dried hydrogel.
And 4, step 4: immersing the non-woven fabric into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin;
example 1
A preparation method of non-woven fabric with nano-copper and shikonin comprises the following steps:
step 1: air drying radix Arnebiae, grinding into powder, and soaking in ethanol; wherein the mass ratio of the lithospermum to the ethanol is 1:10, the ethanol concentration is 100 percent, the soaking temperature is 50 ℃, and the extraction is carried out for 3 hours in ultrasonic. Filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder; wherein the radix Arnebiae extract powder contains alkannin as main ingredient.
Step 2: preparing a copper chloride solution, and adding ascorbic acid into the copper chloride solution for reduction treatment; wherein the concentration of the copper chloride solution is 1mol/L, and the concentration of the ascorbic acid is 1mol/L. Stirring for 30min, precipitating, standing, separating (removing supernatant), washing with ethanol, filtering, and drying to obtain nanometer copper powder.
And 3, step 3: adding 16.7g of nano copper powder and 37.5g of lithospermum extract powder into 150g of alginate hydrogel, and fully stirring to obtain pretreated hydrogel;
and 4, step 4: soaking 150g of terylene into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin;
carrying out related performance tests on the polyester product with the nano-copper and the alkannin, wherein the surface tensile strength (mechanical performance test) of the polyester product reaches 93 percent before treatment; the content of nano copper in the terylene is about 10wt%, the content of alkannin is about 20wt%, the antibacterial rate reaches 98%, and after 30 times of standard washing, the antibacterial effect is still kept above 90%, the antibacterial fastness is high, and the antioxidant effect is good.
Example 2
A preparation method of non-woven fabric with nano-copper and shikonin comprises the following steps:
step 1: air drying radix Arnebiae, grinding into powder, and soaking in ethanol; wherein the mass ratio of the lithospermum to the ethanol is 1:10, the ethanol concentration is 100 percent, the soaking temperature is 50 ℃, and the extraction is carried out for 3 hours in ultrasonic. Filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder; wherein the radix Arnebiae extract powder contains alkannin as main ingredient.
Step 2: preparing a copper chloride solution, and adding ascorbic acid into the copper chloride solution for reduction treatment; wherein the concentration of the copper chloride solution is 1mol/L, and the concentration of the ascorbic acid is 2mol/L. And then stirring for 30min, precipitating, standing, separating (removing supernatant) to obtain precipitate, washing the precipitate with ethanol, filtering, and drying to obtain the nano copper powder.
And 3, step 3: adding 16.7g of nano copper powder and 7.9g of lithospermum extract powder into 75g of alginate hydrogel, and fully stirring to obtain pretreated hydrogel;
and 4, step 4: soaking 150g of terylene into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin;
carrying out related performance tests on the polyester product with the nano-copper and the alkannin, wherein the surface tensile strength (mechanical performance test) of the polyester product reaches 96% before treatment; the content of nano-copper in the terylene is about 5wt%, the content of alkannin is about 10wt%, the antibacterial rate reaches 91%, after 30 times of standard washing, the antibacterial effect is still kept above 85%, the antibacterial fastness is high, and the antioxidant effect is good.
Comparative example 1
The difference between this comparative example and example 1 is that there is no addition of shikonin, i.e. there is no relevant extraction and addition steps of shikonin, other steps are the same as example 1.
Carrying out related performance tests on the polyester product with the nano-copper, wherein the surface tensile strength (mechanical performance test) of the polyester product reaches 93 percent before treatment; the nano-copper content in the terylene is about 10wt%, the antibacterial rate reaches 91%, after 30 times of standard washing, the antibacterial effect is still kept above 80%, the antibacterial fastness is higher, and the antioxidant effect is poorer.
Comparative example 2
The difference between the comparative example and the example 1 is that no hydrogel is added, and the specific steps are as follows:
step 1: air drying radix Arnebiae, grinding into powder, and soaking in ethanol; wherein the mass ratio of the lithospermum to the ethanol is 1:10, the ethanol concentration is 100 percent, the soaking temperature is 50 ℃, and the extraction is carried out for 3 hours in ultrasonic. Filtering, evaporating, and freeze drying to obtain radix Arnebiae extract powder; wherein the radix Arnebiae extract powder contains alkannin as main ingredient.
Step 2: preparing a copper chloride solution, and adding ascorbic acid into the copper chloride solution for reduction treatment to obtain a solution containing nano copper; the volume of the solution was 2L, the concentration of the cupric chloride solution was 1mol/L, and the concentration of ascorbic acid was 1mol/L.
And 3, step 3: and (3) adding the alkannin extract powder prepared in the step (1) into the solution containing the nano-copper prepared in the step (2) and uniformly mixing.
And 4, step 4: and (3) soaking 150g of terylene into the uniformly mixed solution obtained in the step (3), stirring for 30min, and drying to obtain the non-woven fabric with the nano copper and the alkannin.
Carrying out related performance tests on the polyester product with the nano-copper, wherein the surface tensile strength (mechanical performance test) of the polyester product reaches 97% before treatment; the content of nano-copper in the terylene is about 13wt%, the content of shikonin is about 14%, the antibacterial rate reaches 94%, after 30 times of standard washing, the antibacterial effect is still kept above 85%, the antibacterial fastness is high, and the antioxidant effect is good. However, compared with example 1, the content of the nano copper and the shikonin in the non-woven fabric prepared in comparative example 2 is not easy to control.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A preparation method of non-woven fabric with nano-copper and shikonin is characterized by comprising the following steps:
step 1: air drying radix Arnebiae, grinding, soaking in solvent, filtering, evaporating, and lyophilizing to obtain radix Arnebiae extract powder;
step 2: adding a reducing agent into the copper salt solution for reduction treatment, and then stirring, precipitating, standing and separating to obtain nano copper powder;
and step 3: adding a certain amount of nano copper powder and lithospermum extract powder into the hydrogel, and fully stirring to obtain pretreated hydrogel;
and 4, step 4: and (3) immersing the non-woven fabric into the pretreatment hydrogel, and drying after the pretreatment hydrogel is completely permeated to obtain the non-woven fabric with the nano copper and the alkannin.
2. The method for preparing the non-woven fabric with the nano-copper and the alkannin according to claim 1, wherein in the step 1, the soaking temperature is 20-60 ℃ and the soaking time is 0.5-4h.
3. The method for preparing the non-woven fabric with the nano-copper and the alkannin according to claim 1, wherein in the step 1, the solvent is ethanol, the concentration of the ethanol is 70-100%, and the mass ratio of the lithospermum to the ethanol is 1:2-10.
4. The method for preparing the non-woven fabric with the nano-copper and the alkannin according to claim 1, wherein the soaking in the step 1 can be performed in an ultrasonic or microwave state.
5. The method for preparing the non-woven fabric with nano-copper and shikonin as claimed in claim 1, wherein in the step 2, the copper salt solution is one or more of copper sulfate, copper chloride and copper nitrate, and the concentration of copper ions in the copper salt solution is 0.1-1mol/L.
6. The method for preparing the non-woven fabric with the nano-copper and the alkannin according to claim 1, wherein in the step 2, the reducing agent is one or more of sodium borohydride, sodium hypophosphite and ascorbic acid, and the concentration of the reducing agent is 0.02-2 mol/L.
7. The method for preparing the non-woven fabric with the nano-copper and the alkannin according to the claim 1, wherein in the step 3, the content of the nano-copper powder in the pre-treated hydrogel (calculated by drying) is 5-20 wt%; the content of the lithospermum extract powder in the pretreated hydrogel (calculated according to the weight after drying) is 10-30 wt%.
8. The method for preparing the non-woven fabric with nano-copper and shikonin according to claim 1, wherein the main ingredient of the powder of the comfrey extract is shikonin in the step 1.
9. The method for preparing the non-woven fabric with the nano-copper and the shikonin according to claim 1, wherein the hydrogel is any one of a hyaluronic acid hydrogel, an alginate hydrogel and a cellulose hydrogel.
10. A non-woven fabric with nano-copper and shikonin prepared by the preparation method of the non-woven fabric with nano-copper and shikonin according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426449.5A CN115652625B (en) | 2022-11-15 | 2022-11-15 | Non-woven fabric with nano copper and shikonin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211426449.5A CN115652625B (en) | 2022-11-15 | 2022-11-15 | Non-woven fabric with nano copper and shikonin and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004762A (en) * | 2017-12-06 | 2018-05-08 | 广西科技大学 | One kind is with Nanometer Copper anti bacteria natural silk product and preparation method thereof |
| WO2020232863A1 (en) * | 2019-05-23 | 2020-11-26 | Yu Chen | Method for preparing antibacterial and anti-wrinkle hydrogel and use thereof in textiles |
| US20210363689A1 (en) * | 2020-05-19 | 2021-11-25 | Harvest Spf Textile (Beijing) Co., Ltd. | Cu-containing non-woven fabric and method for preparing the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004762A (en) * | 2017-12-06 | 2018-05-08 | 广西科技大学 | One kind is with Nanometer Copper anti bacteria natural silk product and preparation method thereof |
| WO2020232863A1 (en) * | 2019-05-23 | 2020-11-26 | Yu Chen | Method for preparing antibacterial and anti-wrinkle hydrogel and use thereof in textiles |
| US20210363689A1 (en) * | 2020-05-19 | 2021-11-25 | Harvest Spf Textile (Beijing) Co., Ltd. | Cu-containing non-woven fabric and method for preparing the same |
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