CN111519438A - Antibacterial and antiviral finishing agent and preparation method and use method thereof - Google Patents

Antibacterial and antiviral finishing agent and preparation method and use method thereof Download PDF

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CN111519438A
CN111519438A CN202010371528.5A CN202010371528A CN111519438A CN 111519438 A CN111519438 A CN 111519438A CN 202010371528 A CN202010371528 A CN 202010371528A CN 111519438 A CN111519438 A CN 111519438A
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glycyrrhetinic acid
beta
modified
antibacterial
cation
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胡青青
曹子燚
陈红霞
沈玲
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Jiangsu Goldsun Textile Science and Technology Co Ltd
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Jiangsu Goldsun Textile Science and Technology Co Ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J63/00Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms
    • C07J63/008Expansion of ring D by one atom, e.g. D homo steroids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/64Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
    • D06M11/65Salts of oxyacids of nitrogen
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic

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  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses an antibacterial and antiviral finishing agent and a preparation method and a using method thereof, the finishing agent is prepared from the following raw materials, by weight, 20-50 parts of cation modified 18 β -glycyrrhetinic acid, 10-20 parts of silver ion antibacterial agent and 30-60 parts of water, wherein the cation modified 18 β -glycyrrhetinic acid has the following structural formula:

Description

Antibacterial and antiviral finishing agent and preparation method and use method thereof
Technical Field
The invention relates to a finishing agent and a preparation method and a using method thereof, in particular to an antibacterial and antiviral finishing agent and a preparation method and a using method thereof.
Background
Due to climate warming and the like, the transmission of bacterial viruses increasingly threatens the health of people, and textiles are the main medium for the propagation and transmission of the microorganisms. In recent years, textile sanitation finishing (antibacterial and deodorant finishing or microbial finishing) attracts attention and has rapidly developed. There are many brands of antibacterial textiles on the market, but most of them only have antibacterial efficacy and do not meet the antiviral requirements. The antibacterial and antiviral finishing agent can be divided into two categories of natural products and synthetic products. The natural finishing agent has the greatest advantages of good safety to human bodies and the defects of low antibacterial and antiviral efficiency and high cost. The finishing agent of the composition mainly comprises quaternary ammonium salt, triclocarban, isothiazolinone, silver ion compound and the like. The cationic antibacterial agent such as quaternary ammonium salt can be combined with negative charges on the cell surface to destroy the transport function, metabolic function and respiratory function of substances inside and outside the cell membrane; but the cationic antibacterial agent has a weak antiviral effect and a slow rate. Silver ions can disrupt the protein replication of bacteria and viruses. The silver ion has two difficulties for antibacterial and antiviral finishing, and firstly, the silver ion has good inhibition effect on gram-negative bacteria, gram-positive bacteria and viruses, but has unsatisfactory antifungal effect; secondly, silver ions encounter substances such as oxygen, sulfur and the like in the air and generate obvious color change after being heated or stored for a long time.
Disclosure of Invention
The purpose of the invention is as follows: the first purpose of the invention is to provide an antibacterial, antiviral and oxidation discoloration-resistant antibacterial and antiviral finishing agent, the second purpose of the invention is to provide a preparation method of cation modified 18 beta-glycyrrhetinic acid, the third purpose of the invention is to provide a preparation method of the finishing agent, and the fourth purpose of the invention is to provide a use method of the finishing agent.
The technical scheme is as follows: the antibacterial and antiviral finishing agent is prepared from the following raw material components, by weight, 20-50 parts of cation modified 18 beta-glycyrrhetinic acid, 10-20 parts of silver ion antibacterial agent and 30-60 parts of water, wherein the cation modified 18 beta-glycyrrhetinic acid has the following structural formula:
Figure BDA0002478470270000011
the preparation method of the cation modified 18 beta-glycyrrhetinic acid comprises the following steps: firstly, combining organic guanidine and 30-site carboxyl of 18 beta-glycyrrhetinic acid to generate amide to prepare organic guanidine modified 18 beta-glycyrrhetinic acid, and then esterifying 3-site hydroxyl of quaternary phosphonium salt and organic guanidine modified 18 beta-glycyrrhetinic acid to prepare cation modified 18 beta-glycyrrhetinic acid.
Further, the amidation of the 30-position carboxyl of the organic guanidine and 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 18 beta-glycyrrhetinic acid in a mixed solvent of ethanol and dimethyl sulfoxide, adding an activating agent and a condensing agent for activation for 1-2h, adding organic guanidine for reaction for 18-24h, recrystallizing with acetone after the reaction is finished, and drying in vacuum, wherein the mass ratio of the 18 beta-glycyrrhetinic acid to the organic guanidine is 2: 5-10.
Further, the esterification of quaternary phosphonium salt and 3-hydroxyl of 18 beta-glycyrrhetinic acid modified by organic guanidine comprises the following steps: dissolving quaternary phosphonium salt in dimethylformamide, adding organic guanidine modified 18 beta-glycyrrhetinic acid, adding pyridine, heating and refluxing for 2-4h, cooling after the reaction is finished, concentrating, purifying, and concentrating again, wherein the mass ratio of the quaternary phosphonium salt to the organic guanidine modified 18 beta-glycyrrhetinic acid is 5: 1-3.
The preparation method of the antibacterial and antiviral finishing agent comprises the following steps: mixing the cation modified 18 beta-glycyrrhetinic acid and water, and adding the silver ion antibacterial agent.
The use method of the antibacterial and antiviral finishing agent comprises the following steps: preparing the antibacterial and antiviral finishing agent into working solution of 30-60g/L, and adding the working solution in the after-finishing process of the fabric.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) polyhexamethylene guanidine adopted for modifying 18 beta-glycyrrhetinic acid in the antibacterial and antiviral finishing agent is a cationic antibacterial agent with excellent water solubility, can remarkably increase the water solubility of 18 beta-glycyrrhetinic acid, and creates conditions for dyeing and finishing processing; meanwhile, a quaternary phosphonium salt antibacterial agent (3-propylcarboxyl) triphenyl phosphine bromide is introduced, so that the antibacterial property of the 18 beta-glycyrrhetinic acid can be synergistically improved; after the cation modified 18 beta-glycyrrhetinic acid and the silver ion antibacterial agent are compounded, the antiviral activity and the antiviral rate of a system can be effectively improved; the 18 beta-glycyrrhetinic acid has excellent reducing effect, and the 11-carbonyl group has chelating effect on silver ions, so that the stability of the silver ions can be improved, and the problem of oxidative discoloration of fabrics after the cationic antibacterial agent and the silver ion antibacterial agent are used for finishing cloth surfaces is effectively solved;
(2) the preparation method is simple to operate and easy to realize;
(3) the finished fabric has quick and excellent antibacterial and antiviral effects, has obvious inhibition effects on escherichia coli, staphylococcus aureus, klebsiella pneumoniae, candida albicans, H1N1 influenza virus and H3N2 influenza virus, has no color change risk after long-term storage of the finished fabric surface, and has no influence on the whiteness of the bleached fabric.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1
The antibacterial and antiviral finishing agent is prepared from the following raw material components, by weight, 20 parts of cation modified 18 beta-glycyrrhetinic acid, 10 parts of silver nitrate and 30 parts of water, wherein the cation modified 18 beta-glycyrrhetinic acid has the following structural formula:
Figure BDA0002478470270000031
the preparation method of the cation modified 18 beta-glycyrrhetinic acid comprises the following steps: firstly, 30-site carboxyl of PHMG and 18 beta-glycyrrhetinic acid is combined to generate amide, and then CPTPPB and 3-site hydroxyl of PHMG modified 18 beta-glycyrrhetinic acid are esterified to prepare cation modified 18 beta-glycyrrhetinic acid.
The 30-position carboxyamidation of PHMG and 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 2g of 18 beta-glycyrrhetinic acid in 50mL of mixed solvent of ethanol and dimethyl sulfoxide, wherein the volume ratio of the ethanol to the dimethyl sulfoxide is 1:1, adding an activating agent 1-hydroxybenzotriazole HOBt and a condensing agent diisopropyl carbodiimide DIC, activating at room temperature for 1h, adding 5g of PHMG, reacting at room temperature for 18h, monitoring the reaction by TLC, recrystallizing with acetone after the reaction is finished, and drying in vacuum to obtain a water-soluble white solid with the yield of 79%.
The esterification of 3-hydroxyl of CPTPPB and PHMG modified 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 10g of CPTPPB in 50mL of DMF, adding 2g of PHMG modified 18 beta-glycyrrhetinic acid, adding pyridine, heating and refluxing for 2h, monitoring the reaction by TLC, naturally cooling after the reaction is finished, concentrating the solution, purifying by silica gel column and chromatography, carrying out rotary evaporation and concentration on petroleum ether/ethyl acetate (4:1, v/v) under the chromatography condition to obtain a water-soluble white or light yellow solid, wherein the yield is 72%, the polymerization degree n of PHMG is 50, and the molecular weight of PHMG is 8000.
The preparation method of the antibacterial and antiviral finishing agent comprises the following steps: mixing the cation modified 18 beta-glycyrrhetinic acid and water, and adding the silver ion antibacterial agent.
The use method of the antibacterial and antiviral finishing agent comprises the following steps: the antibacterial and antiviral finishing agent is prepared into 30g/L working solution, and the working solution is added in the fabric after-finishing process.
Example 2
The antibacterial and antiviral finishing agent is prepared from the following raw material components, by weight, 50 parts of cation modified 18 beta-glycyrrhetinic acid, 20 parts of silver nitrate and 60 parts of water, wherein the cation modified 18 beta-glycyrrhetinic acid has the following structural formula:
Figure BDA0002478470270000041
the preparation method of the cation modified 18 beta-glycyrrhetinic acid comprises the following steps: firstly, 30-site carboxyl of PHMG and 18 beta-glycyrrhetinic acid is combined to generate amide, and then CPTPPB and 3-site hydroxyl of PHMG modified 18 beta-glycyrrhetinic acid are esterified to prepare cation modified 18 beta-glycyrrhetinic acid.
The 30-position carboxyamidation of PHMG and 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 2g of 18 beta-glycyrrhetinic acid in 50mL of mixed solvent of ethanol and dimethyl sulfoxide, wherein the volume ratio of the ethanol to the dimethyl sulfoxide is 1:5, adding an activating agent 1-hydroxybenzotriazole HOBt and a condensing agent diisopropyl carbodiimide DIC, activating at room temperature for 2h, adding 10g of PHMG, reacting at room temperature for 24h, monitoring the reaction by TLC, recrystallizing with acetone after the reaction is finished, and drying in vacuum to obtain a water-soluble white solid with the yield of 92%.
The esterification of 3-hydroxyl of CPTPPB and PHMG modified 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 10g of CPTPPB in 50mL of DMF, adding 6g of PHMG modified 18 beta-glycyrrhetinic acid, adding pyridine, heating and refluxing for 4h, monitoring the reaction by TLC, naturally cooling after the reaction is finished, concentrating the solution, purifying by silica gel column and chromatography, carrying out rotary evaporation and concentration on petroleum ether/ethyl acetate (4:1, v/v) under the chromatography condition to obtain a water-soluble white or light yellow solid, wherein the yield is 89%, the polymerization degree n of PHMG is 100, and the molecular weight of PHMG is 15000.
The preparation method of the antibacterial and antiviral finishing agent comprises the following steps: mixing the cation modified 18 beta-glycyrrhetinic acid and water, and adding the silver ion antibacterial agent.
The use method of the antibacterial and antiviral finishing agent comprises the following steps: the antibacterial and antiviral finishing agent is prepared into 60g/L working solution, and the working solution is added in the fabric after-finishing process.
Example 3
The antibacterial and antiviral finishing agent is prepared from the following raw material components, by weight, 40 parts of cation modified 18 beta-glycyrrhetinic acid, 15 parts of silver nitrate and 40 parts of water, wherein the cation modified 18 beta-glycyrrhetinic acid has the following structural formula:
Figure BDA0002478470270000051
the preparation method of the cation modified 18 beta-glycyrrhetinic acid comprises the following steps: firstly, 30-site carboxyl of PHMG and 18 beta-glycyrrhetinic acid is combined to generate amide, and then CPTPPB and 3-site hydroxyl of PHMG modified 18 beta-glycyrrhetinic acid are esterified to prepare cation modified 18 beta-glycyrrhetinic acid.
The 30-position carboxyamidation of PHMG and 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 2g of 18 beta-glycyrrhetinic acid in 50mL of mixed solvent of ethanol and dimethyl sulfoxide, wherein the volume ratio of the ethanol to the dimethyl sulfoxide is 1:3, adding an activating agent 1-hydroxybenzotriazole HOBt and a condensing agent diisopropyl carbodiimide DIC, activating at room temperature for 1.5h, adding 7g of PHMG, reacting at room temperature for 20h, monitoring by TLC, recrystallizing with acetone after the reaction is finished, and drying in vacuum to obtain a water-soluble white solid with the yield of 85%.
The esterification of 3-hydroxyl of CPTPPB and PHMG modified 18 beta-glycyrrhetinic acid comprises the following steps: dissolving 10g of CPTPPB in 50mL of DMF, adding 4g of PHMG modified 18 beta-glycyrrhetinic acid, adding pyridine, heating and refluxing for 3h, monitoring the reaction by TLC, naturally cooling after the reaction is finished, concentrating the solution, purifying by silica gel column and chromatography, carrying out rotary evaporation and concentration on petroleum ether/ethyl acetate (4:1, v/v) under the chromatography condition to obtain a water-soluble white or light yellow solid with the yield of 80 percent, the polymerization degree n of PHMG of 70 and the molecular weight of PHMG of 11000.
The preparation method of the antibacterial and antiviral finishing agent comprises the following steps: mixing the cation modified 18 beta-glycyrrhetinic acid and water, and adding the silver ion antibacterial agent.
The use method of the antibacterial and antiviral finishing agent comprises the following steps: the antibacterial and antiviral finishing agent is prepared into 45g/L working solution, and the working solution is added in the fabric after-finishing process.
Comparative example 1
In the comparative example, the cation modified 18 beta-glycyrrhetinic acid is 18 parts, and other raw materials, the proportion, the preparation method and the detection method are the same as those in the example 1.
Comparative example 2
In the comparative example, the cation modified 18 beta-glycyrrhetinic acid is 52 parts, and other raw materials, the proportion, the preparation method and the detection method are the same as those in the example 1.
Comparative example 3
In the comparative example, 8 parts of silver nitrate is used, and other raw materials, proportion, preparation methods and detection methods are the same as those in example 1.
Comparative example 4
In the comparative example, 22 parts of silver nitrate is used, and other raw materials, proportion, preparation methods and detection methods are the same as those in example 1.
Comparative example 5
In the comparative example, 4g of PHMG was used, and the other raw materials, compounding ratio, preparation method and detection method were the same as those in example 1.
Comparative example 6
In this comparative example, PHMG was 11g, and other raw materials, compounding ratio, production method and detection method were the same as those in example 1.
Comparative example 7
In the comparative example, the amount of the PHMG-modified 18 beta-glycyrrhetinic acid is 1g, and other raw materials, mixture ratio, preparation methods and detection methods are the same as those in example 1.
Comparative example 8
In the comparative example, the amount of the modified 18 beta-glycyrrhetinic acid PHMG is 7g, and other raw materials, mixture ratio, preparation methods and detection methods are the same as those in example 1.
Comparative example 9
The concentration of the working solution in the comparative example is 20g/L, and other raw materials, mixture ratio, preparation method and detection method are the same as those in example 1.
Comparative example 10
The concentration of the working solution in the comparative example is 70g/L, and other raw materials, mixture ratio, preparation method and detection method are the same as those in example 1.
The fabric antibacterial performance detection method refers to GB/T20944.2-2013 textile antibacterial performance evaluation part 2: absorption method; the fabric antiviral performance detection method refers to ISO 18184 and 2019 determination of textile antiviral activity; the solubility of the system and the discoloration condition of the fabric are both determined by visual inspection, and the detection results are shown in Table 1.
TABLE 1 antibacterial and antiviral property test results of fabrics
Figure BDA0002478470270000061
Figure BDA0002478470270000071
Compared with the example 1, the antibacterial and antiviral finishing agent has lower content of the cation modified 18 beta-glycyrrhetinic acid, is not enough to completely chelate silver ions, and is easy to produce flocculation or precipitates in a system. In addition, the finished fabric has the risk of blackening and yellowing due to oxidation.
Compared with the example 1, the content of the cationic modified 18 beta-glycyrrhetinic acid in the antibacterial and antiviral finishing agent is higher than the saturated solubility, and the cationic modified 18 beta-glycyrrhetinic acid cannot be completely dissolved in a formula system.
Compared with the example 1, the antibacterial and antiviral finishing agent has lower silver ion content, and the antiviral activity value of the finished fabric can not meet the standard requirement.
Compared with the example 1, the content of silver nitrate in the antibacterial and antiviral finishing agent is higher, more free silver ions exist in the system, and flocculation or precipitates are easy to produce. In addition, the finished fabric has the risk of blackening and yellowing due to oxidation.
Compared with the example 1, the comparative example 5 has less PHMG grafted on the 30-carboxyl of the 18 beta glycyrrhetinic acid, and the solubility of the modified 18 beta glycyrrhetinic acid is not ideal, so that the subsequent preparation requirement cannot be met.
Compared with the example 1, the comparative example 6 has the advantages that more PHMG is grafted on the carboxyl at the 30-site of the 18 beta glycyrrhetinic acid, the obtained cation modified 18 beta glycyrrhetinic acid has stronger ionic property, and the cloth surface after finishing is seriously yellowed.
Compared with the example 1, the CPTPPB grafted on the hydroxyl at the 3-position of the PHMG-modified 18 beta glycyrrhetinic acid is more, the CPTPPB is water-insoluble, and the solubility of the obtained cation-modified 18 beta glycyrrhetinic acid is not ideal, so that the subsequent preparation requirement cannot be met.
Compared with example 1, the CPTPPB grafted on the hydroxyl at the 3-position of the PHMG-modified 18 beta glycyrrhetinic acid is less, and the obtained cation-modified 18 beta glycyrrhetinic acid has poorer antibacterial property.
Compared with the working solution of the embodiment 1, the working solution concentration of the comparative example 9 is low, and the antibacterial rate and the antiviral activity value of the finished fabric are not ideal and do not meet the standard requirements.
Compared with the working solution in the example 1, although the concentration of the working solution is increased, the antibacterial rate and the antiviral activity of the finished fabric are not increased any more, and the hand feeling of the fabric is also affected by the increase of the content of the auxiliary agent in the fabric.

Claims (10)

1. An antibacterial and antiviral finishing agent is characterized by comprising the following raw material components, by weight, 20-50 parts of cation modified 18 beta-glycyrrhetinic acid, 10-20 parts of silver ion antibacterial agent and 30-60 parts of water, wherein the cation modified 18 beta-glycyrrhetinic acid has the following structural formula:
Figure FDA0002478470260000011
2. the antibacterial and antiviral finish according to claim 1, characterized in that: the silver ion antibacterial agent is silver nitrate.
3. A method for preparing the cation-modified 18 β -glycyrrhetinic acid of claim 1, comprising the steps of: firstly, combining organic guanidine and 30-site carboxyl of 18 beta-glycyrrhetinic acid to generate amide to prepare organic guanidine modified 18 beta-glycyrrhetinic acid, and then esterifying quaternary phosphonium salt and 3-site hydroxyl of the organic guanidine modified 18 beta-glycyrrhetinic acid to prepare cation modified 18 beta-glycyrrhetinic acid.
4. The method for preparing the cation-modified 18 β -glycyrrhetinic acid according to claim 3, wherein the amidation of the 30-position carboxyl group of the organic guanidine and 18 β -glycyrrhetinic acid comprises the steps of: dissolving 18 beta-glycyrrhetinic acid in a mixed solvent of ethanol and dimethyl sulfoxide, adding an activating agent and a condensing agent for activation for 1-2h, adding organic guanidine for reaction for 18-24h, recrystallizing with acetone after the reaction is finished, and drying in vacuum, wherein the mass ratio of the 18 beta-glycyrrhetinic acid to the organic guanidine is 2: 5-10.
5. The method for preparing the cation-modified 18 β -glycyrrhetinic acid according to claim 4, characterized in that: the activating agent is 1-hydroxybenzotriazole, and the condensing agent is diisopropylcarbodiimide.
6. The method for preparing the cation-modified 18 β -glycyrrhetinic acid according to claim 4, characterized in that: the volume ratio of the ethanol to the dimethyl sulfoxide is 1: 1-5.
7. The method for preparing the cation-modified 18 β -glycyrrhetinic acid according to claim 3, wherein the esterification of the quaternary phosphonium salt with the hydroxyl group at the 3-position of the organic guanidine-modified 18 β -glycyrrhetinic acid comprises the steps of: dissolving a quaternary phosphonium salt in dimethylformamide, adding organic guanidine modified 18 beta-glycyrrhetinic acid, adding pyridine, heating and refluxing for 2-4h, cooling after the reaction is finished, concentrating, purifying, and concentrating again, wherein the mass ratio of the quaternary phosphonium salt to the organic guanidine modified 18 beta-glycyrrhetinic acid is 5: 1-3.
8. The method for preparing the cation-modified 18 β -glycyrrhetinic acid according to claim 3, characterized in that: the organic guanidine is polyhexamethylene guanidine hydrochloride, the polymerization degree of the organic guanidine is 50-100, and the molecular weight of the organic guanidine is 8000-15000; the quaternary phosphonium salt is (3-propyl carboxyl) triphenyl phosphonium bromide.
9. A process for preparing the antibacterial and antiviral finishing agent according to claim 1, comprising the steps of: mixing the cation modified 18 beta-glycyrrhetinic acid with water, and adding a silver ion antibacterial agent.
10. A method of using the antibacterial and antiviral finish of claim 1, comprising the steps of: preparing 30-60g/L working solution from the antibacterial and antiviral finishing agent, and adding the working solution in the fabric after-finishing process.
CN202010371528.5A 2020-05-06 2020-05-06 Antibacterial and antiviral finishing agent and preparation method and use method thereof Pending CN111519438A (en)

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CN101747404A (en) * 2009-12-17 2010-06-23 中国海洋大学 Glycyrrhetinic acid cyclic phosphonate ester derivative and preparation method thereof
CN103668544A (en) * 2013-12-11 2014-03-26 浙江华峰氨纶股份有限公司 Polyurethane elastic fibers with multielement functionality and preparation method thereof
CN106758216A (en) * 2016-12-02 2017-05-31 辽东学院 A kind of processing method of antibacterial, uvioresistant bafta

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Application publication date: 20200811