CN113481726A - Preparation method of botanical anti-mosquito textile fabric - Google Patents
Preparation method of botanical anti-mosquito textile fabric Download PDFInfo
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- CN113481726A CN113481726A CN202110858273.XA CN202110858273A CN113481726A CN 113481726 A CN113481726 A CN 113481726A CN 202110858273 A CN202110858273 A CN 202110858273A CN 113481726 A CN113481726 A CN 113481726A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/11—Compounds containing epoxy groups or precursors thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2246—Esters of unsaturated carboxylic acids
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention belongs to the technical field of textiles and provides a preparation method of a botanical mosquito-proof textile fabric.
Description
Technical Field
The invention belongs to the technical field of textiles, and particularly relates to a preparation method of a botanical anti-mosquito textile fabric.
Background
The mosquitoes can not only sting and suck blood and influence sleep, but also transmit malaria, encephalitis B, dengue fever, filariasis, yellow fever, black fever and the like, and the mosquitoes bring great harm to human health. Therefore, the research on preventing mosquito bites has been receiving wide attention. The development of the anti-mosquito fabric is an important means for preventing mosquito bites and mosquito-transmitted diseases. For a long time, people adopt deet, deinsectization polyester and other synthetic repellents to develop mosquito-proof fabrics by a certain method. Most synthetic repellents are WHO forbidden compounds, and the synthetic repellents are used in large quantities for a long time, so that the drug resistance of mosquitoes is continuously improved, nervous system symptoms and skin injury can be caused, and allergic reaction can be caused to children. More and more scientists have shifted their eyes to the development of plant-derived mosquito repellents.
The plant-derived repellent is a compound which is extracted from plants and can protect a host from being attacked by mosquitoes by influencing the smell feeling of the mosquitoes on the host, such as eucalyptus citriodora oil, peppermint oil, cedar oil and the like. Most of the substances are natural aromatic essential oil, have poor water solubility, poor binding fastness with textiles and have a non-lasting finishing effect. Cyclodextrin has a special structure with hydrophilic outside a ring and hydrophobic inside the ring, and organic molecules, inorganic compounds, rare gases and the like can be enveloped in a ring structure and a cavity of the cyclodextrin. However, cyclodextrin has poor water solubility and limited applications.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation method of a botanical mosquito-proof textile fabric, which comprises the steps of firstly preparing a hydroxypropyl-beta-cyclodextrin polymer by using epoxy chloropropane as a cross-linking agent, then clathrating botanical compound essential oil (azadirachtin, camphor wood oil, lavender oil and peppermint oil) by using the hydroxypropyl-beta-cyclodextrin polymer to prepare a compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and treating the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound on the textile fabric in a post-finishing mode.
The invention provides a preparation method of a botanical anti-mosquito textile fabric, which comprises the following steps: firstly, epichlorohydrin is used as a cross-linking agent to prepare a hydroxypropyl-beta-cyclodextrin polymer, then the hydroxypropyl-beta-cyclodextrin polymer is used to coat a plant compound essential oil repellent to obtain a compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and then the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound is processed on a pure cotton textile in a post-finishing mode in the presence of epichlorohydrin, wherein the compound essential oil comprises azadirachtin, camphor wood oil, lavender oil and peppermint oil.
Further defining the more specific steps of:
(1) accurately weighing 5-10g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 10-30mL of sodium hydroxide solution with the mass fraction of 10-20%, stirring and dissolving at room temperature, slowly adding 5-7g of epoxy chloropropane under the stirring condition, continuously stirring for 24-36h at 10-30 ℃ to obtain viscous liquid, adding 30-50mL of methanol, collecting white solid, fully washing with deionized water, and drying in a vacuum drying oven at 60-80 ℃ to constant weight to obtain a hydroxypropyl-beta-cyclodextrin polymer for later use;
(2) accurately weighing azadirachtin, camphor wood oil, lavender oil and peppermint oil in a mass ratio of 1:1:1:1, emulsifying and dispersing the azadirachtin, camphor wood oil, lavender oil and peppermint oil in C13-15 branched chain fatty alcohol-polyoxyethylene ether, and preparing a compound essential oil emulsion with the mass fraction of 5% -10% for later use; weighing 5-10g of hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a round-bottom flask, adding a methanol aqueous solution with the mass fraction of 60-80% of methanol, adjusting the pH to 4-6 with glacial acetic acid, magnetically stirring at room temperature for full dispersion, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuously stirring at 0-25 ℃ for 24-36h, after reaction, centrifugally separating, collecting precipitate, respectively and fully washing with anhydrous methanol and deionized water, and drying in a vacuum drying oven at 30-40 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in a NaOH solution with the mass fraction of 5-10%, adding epoxy chloropropane, stirring and mixing uniformly, adding a pure cotton textile, carrying out bath ratio of 1:10, sealing, carrying out constant-temperature oscillation at 10-30 ℃ for 2-4h, dehydrating, drying at 100-110 ℃ for 2-4min, taking out, fully washing with deionized water, and naturally drying.
Further, the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in the system in the step (3) accounts for 15-30% of the total solution by mass.
Further, the concentration of the epichlorohydrin in the system in the step (3) is 2-5 g/L.
Firstly, crosslinking hydroxypropyl-beta-cyclodextrin by using epoxy chloropropane as a crosslinking agent to prepare a hydroxypropyl-beta-cyclodextrin polymer; then coating the plant source compound essential oil repellent by utilizing a hydroxypropyl-beta-cyclodextrin hydrophobic cavity to obtain a compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound; and then the reactivity of epoxy chloropropane, hydroxypropyl-beta-cyclodextrin and hydroxyl on cellulose fiber is utilized to covalently crosslink the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound onto the pure cotton textile, so that the fabric has excellent mosquito repellent effect and washability.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It will be understood that these examples are intended to illustrate the invention and are not intended to limit the scope of the invention in any way.
Example 1
(1) Accurately weighing 5g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 10mL of sodium hydroxide solution with the mass fraction of 20%, stirring and dissolving at room temperature, slowly adding 5-7g of epoxy chloropropane under the stirring condition, continuously stirring at 10 ℃ for 36 hours to obtain viscous liquid, adding 30mL of methanol, collecting white solid, fully washing with deionized water, and drying in a vacuum drying oven at 60 ℃ to constant weight to obtain a hydroxypropyl-beta-cyclodextrin polymer for later use;
(2) accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), emulsifying and dispersing in C13-14 branched chain fatty alcohol-polyoxyethylene ether, and preparing a compound essential oil emulsion with the mass fraction of 5% for later use; weighing 5g of the hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a 100mL round-bottom flask, adding 80 mass percent of methanol aqueous solution, adjusting the pH to 4 with glacial acetic acid, magnetically stirring at room temperature for 1h, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuing stirring at 0 ℃ for 36h, after the reaction is finished, centrifugally separating, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 30 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in a NaOH solution with the mass fraction of 10%, preparing a dispersion liquid with the mass fraction of 15% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, adding epoxy chloropropane, and controlling the concentration of the epoxy chloropropane in the dispersion liquid to be 2 g/L; stirring and mixing uniformly, adding pure cotton textile, carrying out bath ratio of 1:10, sealing, oscillating at constant temperature of 10 ℃ for 4h, dehydrating, drying at 100 ℃ for 4min, taking out, fully washing with deionized water, and naturally drying.
Comparative example 1-1 (Inclusion with hydroxypropyl-. beta. -cyclodextrin)
(1) Accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), dissolving in anhydrous methanol, and preparing a compound essential oil solution with the mass fraction of 5% for later use; weighing 5g of hydroxypropyl-beta-cyclodextrin, placing the hydroxypropyl-beta-cyclodextrin into a 100mL round-bottom flask, adding a methanol aqueous solution with the mass fraction of 80%, adjusting the pH to 4 with glacial acetic acid, magnetically stirring for 1h at room temperature, slowly dropwise adding the compound essential oil solution, after dropwise adding, continuously stirring for 36h at 0 ℃, after reaction, centrifugally separating, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 30 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(2) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in a NaOH solution with the mass fraction of 10%, preparing a dispersion liquid with the mass fraction of 15% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, adding epoxy chloropropane, and controlling the concentration of the epoxy chloropropane in the dispersion liquid to be 2 g/L; stirring and mixing uniformly, adding pure cotton textile, carrying out bath ratio of 1:10, sealing, oscillating at constant temperature of 10 ℃ for 4h, dehydrating, drying at 100 ℃ for 4min, taking out, fully washing with deionized water, and naturally drying.
Comparative examples 1 to 2 (No epichlorohydrin was added during finishing)
(1) Accurately weighing 5g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 10mL of sodium hydroxide solution with the mass fraction of 20%, stirring and dissolving at room temperature, slowly adding 5-7g of epoxy chloropropane under the stirring condition, continuously stirring at 10 ℃ for 36 hours to obtain viscous liquid, adding 30mL of methanol, collecting white solid, fully washing with deionized water, and drying in a vacuum drying oven at 60 ℃ to constant weight for later use;
(2) accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), emulsifying and dispersing in C13-14 branched chain fatty alcohol-polyoxyethylene ether, and preparing a compound essential oil emulsion with the mass fraction of 5% for later use; weighing 5g of hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a 100mL round-bottom flask, adding 80 mass percent of methanol aqueous solution, adjusting the pH to 4 with glacial acetic acid, magnetically stirring for 1h at room temperature, slowly dropwise adding the emulsion, after dropwise adding, continuously stirring for 36h at 0 ℃, after reaction, centrifugally separating compound essential oil, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 30 ℃ to constant weight to obtain the azadirachtin/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in NaOH solution with the mass fraction of 10%, preparing dispersion liquid with the mass fraction of 15% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, stirring and mixing uniformly, adding pure cotton textiles with the bath ratio of 1:10, sealing, oscillating at the constant temperature of 10 ℃ for 4 hours, dehydrating, drying at the temperature of 100 ℃ for 4 minutes, taking out, fully washing with deionized water, and naturally drying.
Example 2
(1) Accurately weighing 10g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 30mL of sodium hydroxide solution with the mass fraction of 10%, stirring and dissolving at room temperature, slowly adding 7g of epoxy chloropropane under the stirring condition, continuously stirring for 24 hours at 30 ℃ to obtain a viscous liquid, adding 50mL of methanol, collecting a white solid, fully washing with deionized water, and drying in a vacuum drying oven at 80 ℃ to constant weight to obtain a hydroxypropyl-beta-cyclodextrin polymer for later use;
(2) accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), emulsifying and dispersing in C13-14 branched chain fatty alcohol-polyoxyethylene ether, and preparing a compound essential oil emulsion with the mass fraction of 10% for later use; weighing 10g of the hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a 100mL round-bottom flask, adding 80 mass percent of methanol aqueous solution, adjusting the pH to 6 with glacial acetic acid, magnetically stirring at room temperature for 1h, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuing stirring at 25 ℃ for 24h, after the reaction is finished, centrifugally separating, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 40 ℃ to constant weight to obtain the azadirachtin/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in a NaOH solution with the mass fraction of 5%, preparing a dispersion liquid with the mass fraction of 30% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and adding epichlorohydrin, wherein the concentration of the epichlorohydrin is 5 g/L; stirring and mixing uniformly, adding pure cotton textile, carrying out bath ratio of 1:10, sealing, oscillating at constant temperature of 30 ℃ for 2h, dehydrating, drying at 110 ℃ for 2min, taking out, fully washing with deionized water, and naturally drying.
Example 3
(1) Accurately weighing 7.5g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 20mL of sodium hydroxide solution with the mass fraction of 15%, stirring and dissolving at room temperature, slowly adding 6g of epoxy chloropropane under the stirring condition, continuously stirring at 20 ℃ for 30 hours to obtain viscous liquid, adding 40mL of methanol, collecting white solid, fully washing with deionized water, and drying in a vacuum drying oven at 70 ℃ to constant weight to obtain a hydroxypropyl-beta-cyclodextrin polymer for later use;
(2) accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), emulsifying and dispersing in C13-14 branched chain fatty alcohol-polyoxyethylene ether, and preparing compound essential oil emulsion with the mass fraction of 6% for later use; weighing 7.5g of hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer into a 100mL round-bottom flask, adding a methanol aqueous solution with the mass fraction of 80%, adjusting the pH to 5 with glacial acetic acid, magnetically stirring for 1h at room temperature, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuing stirring for 30h at 15 ℃, after the reaction is finished, centrifugally separating, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 35 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in NaOH solution with the mass fraction of 8%, preparing dispersion liquid with the mass fraction of 25% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and adding epichlorohydrin, wherein the concentration of the epichlorohydrin is 3 g/L; stirring and mixing uniformly, adding pure cotton textile, carrying out bath ratio of 1:10, sealing, oscillating at constant temperature of 20 ℃ for 3h, dehydrating, drying at 105 ℃ for 3min, taking out, fully washing with deionized water, and naturally drying.
Example 4
(1) Accurately weighing 6g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 15mL of sodium hydroxide solution with the mass fraction of 12%, stirring and dissolving at room temperature, slowly adding 5.5g of epoxy chloropropane under the stirring condition, continuously stirring at 15 ℃ for 28 hours to obtain viscous liquid, adding 35mL of methanol, collecting white solid, fully washing with deionized water, and drying in a 65 ℃ vacuum drying oven to constant weight for later use;
(2) accurately weighing standard substances of azadirachtin, camphor wood oil, lavender oil and peppermint oil (the mass ratio is 1:1:1:1), emulsifying and dispersing in C13-14 branched chain fatty alcohol-polyoxyethylene ether, and preparing compound essential oil emulsion with the mass fraction of 8% for later use; weighing 6g of the hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a 100mL round-bottom flask, adding 80 mass percent of methanol aqueous solution, adjusting the pH to 4.5 with glacial acetic acid, magnetically stirring for 1h at room temperature, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuing stirring for 28h at 20 ℃, after the reaction is finished, centrifugally separating, collecting precipitate, fully washing with anhydrous methanol and deionized water respectively, and drying in a vacuum drying oven at 35 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in NaOH solution with the mass fraction of 6%, preparing dispersion liquid with the mass fraction of 20% of the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and adding epichlorohydrin, wherein the concentration of the epichlorohydrin is 4 g/L; stirring and mixing uniformly, adding pure cotton textile, carrying out bath ratio of 1:10, sealing, oscillating at constant temperature of 15 ℃ for 2.5h, dehydrating, drying at 102 ℃ for 4min, taking out, fully washing with deionized water, and naturally drying.
Example 5
The mosquito repelling performance test is carried out according to GB/T30126-2013 detection and evaluation of mosquito repelling performance of textiles. Test insects: aedes albopictus, adult insects which did not take blood 7 days after emergence. The test method comprises the following steps: female imagoes of aedes albopictus (about 60) were placed in mosquito cages (33cm × 33cm × 33 cm). 3 workers take part in the test, the hands of the testers are cleaned before the test, each tester wraps the fist with the contrast cloth firstly, the tester is put into a mosquito cage, the time is immediately counted, the number of the mosquitoes falling off the surface of the sample is counted and recorded every 20 seconds, and the test time is 2 minutes. Subsequently, the tester wrapped the fist with an anti-mosquito treatment cloth, placed in a mosquito cage, tested in the same manner, and recorded the number of mosquito stops. The repellency rate was calculated from replicate test data as follows:
in the formula: m is1The unit is 'only' in contrast to the total number of mosquito drops on the cloth; m is2The total number of the mosquitoes stopping and falling is 'only' for the mosquito prevention treatment.
Water wash resistance test: the fabric mosquito repellent effect water washability test is carried out according to the test condition A1M in GB/T12490-. After reaching the specified washing times, fully washing the sample with water, and drying
The fabric mosquito repellent effect test result is as follows:
TABLE 1 mosquito repellent Performance test of fabrics
As can be seen from the table 1, according to the evaluation of GB/T30126-2013 detection and evaluation of mosquito prevention performance of textiles, the fabric obtained by the invention has extremely strong repellent effect on aedes albopictus, the repellent rate is more than 70%, and the mosquito prevention rating is A level; and the mosquito repellent effect has excellent washing fastness. The compound essential oil is directly included by the hydroxypropyl-beta-cyclodextrin in the comparative example 1-1, so that the encapsulation rate is low, and the mosquito repellent effect of the finished fabric is poor; in the comparative examples 1-2, no crosslinking agent epichlorohydrin is added when the fabric is finished, and the finished fabric has mosquito repellent effect and is not resistant to washing.
Claims (4)
1. A preparation method of a botanical anti-mosquito textile fabric is characterized by comprising the following steps: the method comprises the following steps: firstly, epichlorohydrin is used as a cross-linking agent to prepare a hydroxypropyl-beta-cyclodextrin polymer, then the hydroxypropyl-beta-cyclodextrin polymer is used to coat a plant compound essential oil repellent to prepare a compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound, and then the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound is processed on a pure cotton textile in a post-finishing mode in the presence of epichlorohydrin, wherein the compound essential oil comprises azadirachtin, camphor wood oil, lavender oil and peppermint oil.
2. The preparation method of the botanical anti-mosquito textile fabric as claimed in claim 1, wherein the preparation method comprises the following steps: the method comprises the following specific steps:
(1) accurately weighing 5-10g of hydroxypropyl-beta-cyclodextrin, dissolving the hydroxypropyl-beta-cyclodextrin in 10-30mL of sodium hydroxide solution with the mass fraction of 10-20%, stirring and dissolving at room temperature, slowly adding 5-7g of epoxy chloropropane under the stirring condition, continuously stirring for 24-36h at 10-30 ℃ to obtain viscous liquid, adding 30-50mL of methanol, collecting white solid, fully washing with deionized water, and drying in a vacuum drying oven at 60-80 ℃ to constant weight to obtain a hydroxypropyl-beta-cyclodextrin polymer for later use;
(2) accurately weighing azadirachtin, camphor wood oil, lavender oil and peppermint oil in a mass ratio of 1:1:1:1, emulsifying and dispersing the azadirachtin, camphor wood oil, lavender oil and peppermint oil in C13-15 branched chain fatty alcohol-polyoxyethylene ether, and preparing a compound essential oil emulsion with the mass fraction of 5% -10% for later use; weighing 5-10g of hydroxypropyl-beta-cyclodextrin polymer obtained in the step (1), placing the hydroxypropyl-beta-cyclodextrin polymer in a round-bottom flask, adding a methanol aqueous solution with the mass fraction of 60-80% of methanol, adjusting the pH to 4-6 with glacial acetic acid, magnetically stirring at room temperature for full dispersion, slowly dropwise adding the compound essential oil emulsion, after dropwise adding, continuously stirring at 0-25 ℃ for 24-36h, after reaction, centrifugally separating, collecting precipitate, respectively and fully washing with anhydrous methanol and deionized water, and drying in a vacuum drying oven at 30-40 ℃ to constant weight to obtain the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound;
(3) dispersing the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in a NaOH solution with the mass fraction of 5-10%, adding epoxy chloropropane, stirring and mixing uniformly, adding a pure cotton textile, carrying out bath ratio of 1:10, sealing, carrying out constant-temperature oscillation at 10-30 ℃ for 2-4h, dehydrating, drying at 100-110 ℃ for 2-4min, taking out, fully washing with deionized water, and naturally drying.
3. The preparation method of the botanical anti-mosquito textile fabric as claimed in claim 1, wherein the preparation method comprises the following steps: the compound essential oil/hydroxypropyl-beta-cyclodextrin inclusion compound in the system in the step (3) accounts for 15-30% of the total solution by mass.
4. The preparation method of the botanical anti-mosquito textile fabric as claimed in claim 1, wherein the preparation method comprises the following steps: and (3) the concentration of the epichlorohydrin in the system in the step (3) is 2-5 g/L.
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| CN117363097A (en) * | 2023-10-23 | 2024-01-09 | 宁波美乐童年玩具有限公司 | Water washable water color pen ink |
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