CN111304015A - Antibacterial high-concentration laundry detergent and preparation method thereof - Google Patents
Antibacterial high-concentration laundry detergent and preparation method thereof Download PDFInfo
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- CN111304015A CN111304015A CN202010144151.XA CN202010144151A CN111304015A CN 111304015 A CN111304015 A CN 111304015A CN 202010144151 A CN202010144151 A CN 202010144151A CN 111304015 A CN111304015 A CN 111304015A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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Abstract
The invention discloses an antibacterial high-concentration laundry detergent and a preparation method thereof, wherein the laundry detergent comprises the following raw materials in percentage by mass: 20-26% of fatty alcohol-polyoxyethylene ether, 8-10% of isomeric tridecanol polyoxyethylene ether, 18-22% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12-16% of coconut oil fatty acid diethanolamide, 6-8% of dodecyl glucoside, 1-1.8% of triethanolamine, 2-5% of ethanol, 0.1-0.5% of polyethylene glycol, 0.1-0.2% of sodium citrate, 0.3-0.8% of morinda officinalis water extract, 0.1-0.2% of bletilla striata water extract, 0.4-1% of mannose erythritol ester, 0-0.5% of essence and 15-20% of deionized water. The high-concentration laundry detergent prepared by the invention has high decontamination capability, excellent antibacterial effect, high stability, good solubility and better skin friendliness and environmental protection.
Description
Technical Field
The invention relates to the technical field of detergents, in particular to an antibacterial high-concentration laundry detergent and a preparation method thereof.
Background
With the acceleration of production and life rhythm, the laundry detergent used as a common detergent in life of people is developing towards energy conservation, environmental protection, high efficiency and convenience. The high-concentration laundry detergent has high active substance content, the addition amount of the high-concentration laundry detergent is far less than that of a common laundry detergent, and part of the high-concentration laundry detergent can even reach 1/4-1/6 of the common laundry detergent, so that the corresponding washing and decontamination effects can be achieved, the transportation and packaging costs are greatly reduced, the waste generated in production is less, and the high-concentration laundry detergent has outstanding advantages in the aspects of energy conservation, environmental protection, high efficiency and the like. Therefore, highly concentrated laundry detergents are currently a focus of research. However, the high concentration laundry detergent has high content of surfactant, and in order to maintain good solubility and stability, the selection and content of surfactant and active additive have certain limitations, which limit the use performance. How to make the laundry detergent have excellent washing capacity and antibacterial effect on the premise of high concentration factor becomes a problem to be solved urgently.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an antibacterial high-concentration laundry detergent and a preparation method thereof.
The invention provides an antibacterial high-concentration laundry detergent which comprises the following raw materials in percentage by mass:
20-26% of fatty alcohol-polyoxyethylene ether, 8-10% of isomeric tridecanol polyoxyethylene ether, 18-22% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12-16% of coconut oil fatty acid diethanolamide, 6-8% of dodecyl glucoside, 1-1.8% of triethanolamine, 2-5% of ethanol, 0.1-0.5% of polyethylene glycol, 0.1-0.2% of sodium citrate, 0.3-0.8% of morinda officinalis water extract, 0.1-0.2% of bletilla striata water extract, 0.4-1% of mannose erythritol ester, 0-0.5% of essence and 15-20% of deionized water.
Preferably, the antibacterial highly-concentrated laundry detergent comprises the following raw materials in percentage by mass:
24% of fatty alcohol-polyoxyethylene ether, 9% of isomeric tridecanol polyoxyethylene ether, 20% of fatty alcohol-polyoxyethylene ether sodium sulfate, 15% of coconut fatty acid diethanolamide, 7% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 0.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.6% of mannosylerythritol ester, 0.4% of essence and 17.85% of deionized water.
The morinda officinalis water extract is obtained by decocting dried roots of morinda officinalis with water, filtering and concentrating; preferably, the morinda citrifolia aqueous extract has a relative density of 1.25-1.3.
The preparation method of the morinda officinalis water extract can be a conventional method, and specifically comprises the following steps:
pulverizing dried radix Morindae officinalis, adding 10-15 times of water, decocting for 2-4 hr, filtering, and concentrating the filtrate.
The bletilla striata water extract is obtained by carrying out high-temperature water extraction, filtration and concentration on dry tubers of bletilla striata; preferably, the relative density of the bletilla striata water extract is 1.05-1.1.
The preparation method of the bletilla striata water extract can be a conventional method, and specifically comprises the following steps:
pulverizing rhizoma bletilla dry tuber, adding 20-40 times of water, leaching at 70-90 deg.C for 4-8 hr, filtering, and concentrating the filtrate.
Preferably, the polyethylene glycol is at least one of polyethylene glycol 200, polyethylene glycol 400 and polyethylene glycol 600.
The preparation method of the antibacterial high-concentration laundry detergent comprises the following steps:
s1, adding fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide, dodecyl glucoside, ethanol, polyethylene glycol and mannitol erythritol ester into deionized water, and heating and stirring uniformly;
s2, adding the morinda officinalis water extract and the bletilla striata water extract into the material obtained in the step S1, and heating and stirring uniformly;
s3, adding the rest raw materials into the material obtained in the step S2, and stirring at normal temperature until the raw materials are fully dissolved to obtain the material.
Preferably, in the step S1, the heating and stirring temperature is 40-45 ℃; in the step S2, the heating and stirring temperature is 30-45 ℃.
The invention has the following beneficial effects:
in the raw materials, the concentrated laundry detergent has excellent detergency and keeps higher stability by compounding a proper amount of surfactants fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide and dodecyl glucoside; the morinda officinalis water extract and the bletilla striata water extract contain multiple antibacterial active substances such as saponin and polysaccharide, and can play a synergistic effect by adding the morinda officinalis water extract and the bletilla striata water extract, so that the concentrated laundry detergent has good antibacterial performance; the mannitose erythritol lipid is a microbial surfactant, has good surface activity, antibacterial activity and temperature change resistance stability, can further improve the decontamination performance and antibacterial effect of the laundry detergent by adding the mannitose erythritol lipid, and can play a good auxiliary role in improving the stability of a concentrated laundry detergent system.
The concentrated laundry detergent prepared by the invention forms a highly stable system through selection and compounding of different surfactants and addition of active ingredients such as morinda officinalis water extract, bletilla striata water extract and mannitol erythritol lipid, can effectively improve the decontamination capability and antibacterial effect of the laundry detergent, can keep good stability and solubility under high concentration times, and has the characteristics of mildness, low irritation, safety and environmental protection because the antibacterial components are natural active extracts.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The antibacterial high-concentration laundry detergent comprises the following raw materials in percentage by mass:
20-26% of fatty alcohol-polyoxyethylene ether, 8-10% of isomeric tridecanol polyoxyethylene ether, 18-22% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12-16% of coconut oil fatty acid diethanolamide, 6-8% of dodecyl glucoside, 1-1.8% of triethanolamine, 2-5% of ethanol, 0.1-0.5% of polyethylene glycol, 0.1-0.2% of sodium citrate, 0.3-0.8% of morinda officinalis water extract, 0.1-0.2% of bletilla striata water extract, 0.4-1% of mannose erythritol ester, 0-0.5% of essence and 15-20% of deionized water.
Example 2
The antibacterial high-concentration laundry detergent comprises the following raw materials in percentage by mass:
20% of fatty alcohol-polyoxyethylene ether, 10% of isomeric tridecanol polyoxyethylene ether, 18% of fatty alcohol-polyoxyethylene ether sodium sulfate, 16% of coconut fatty acid diethanolamide, 8% of lauryl glucoside, 1.8% of triethanolamine, 5% of ethanol, 6000.5% of polyethylene glycol, 0.2% of sodium citrate, 0.8% of morinda officinalis water extract, 0.1% of bletilla striata water extract, 1% of mannosylerythritol ester, 0.1% of essence and 18.5% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.25, and the relative density of the bletilla striata water extract is 1.05.
The preparation method of the antibacterial high-concentration laundry detergent comprises the following steps:
s1, adding fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide, dodecyl glucoside, ethanol, polyethylene glycol 600 and mannitol erythritol ester into deionized water, and heating and stirring uniformly at 40 ℃;
s2, adding the morinda officinalis water extract and the bletilla striata water extract into the material obtained in the step S1, and heating and stirring the mixture evenly at the temperature of 30 ℃;
s3, adding the rest raw materials into the material obtained in the step S2, and stirring at normal temperature until the raw materials are fully dissolved to obtain the material.
Example 3
The antibacterial high-concentration laundry detergent comprises the following raw materials in percentage by mass:
26% of fatty alcohol-polyoxyethylene ether, 8% of isomeric tridecanol polyoxyethylene ether, 22% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12% of coconut fatty acid diethanolamide, 6% of lauryl glucoside, 1% of triethanolamine, 4% of ethanol, 2000.1% of polyethylene glycol, 0.2% of sodium citrate, 0.3% of morinda officinalis water extract, 0.2% of bletilla striata water extract, 0.4% of mannose erythritol ester, 0.3% of essence and 19.5% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.3, and the relative density of the bletilla striata water extract is 1.1.
The preparation method of the antibacterial high-concentration laundry detergent comprises the following steps:
s1, adding fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide, dodecyl glucoside, ethanol, polyethylene glycol 200 and mannitol erythritol ester into deionized water, and heating and stirring uniformly at 42 ℃;
s2, adding the morinda officinalis water extract and the bletilla striata water extract into the material obtained in the step S1, and heating and stirring the mixture evenly at the temperature of 35 ℃;
s3, adding the rest raw materials into the material obtained in the step S2, and stirring at normal temperature until the raw materials are fully dissolved to obtain the material.
Example 4
The antibacterial high-concentration laundry detergent comprises the following raw materials in percentage by mass:
24% of fatty alcohol-polyoxyethylene ether, 9% of isomeric tridecanol polyoxyethylene ether, 20% of fatty alcohol-polyoxyethylene ether sodium sulfate, 15% of coconut fatty acid diethanolamide, 7% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 4000.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.6% of mannose erythritol ester, 0.4% of essence and 17.85% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.26, and the relative density of the bletilla striata water extract is 1.08.
The preparation method of the antibacterial high-concentration laundry detergent comprises the following steps:
s1, adding fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide, dodecyl glucoside, ethanol, polyethylene glycol 400 and mannitol erythritol ester into deionized water, and heating and stirring uniformly at 45 ℃;
s2, adding the morinda officinalis water extract and the bletilla striata water extract into the material obtained in the step S1, and heating and stirring uniformly at 45 ℃;
s3, adding the rest raw materials into the material obtained in the step S2, and stirring at normal temperature until the raw materials are fully dissolved to obtain the material.
Comparative example 1
The difference between the comparative example 1 and the example 4 is only the difference of the raw material formula, specifically: the composite material comprises the following raw materials in percentage by mass:
24% of fatty alcohol-polyoxyethylene ether, 9% of isomeric tridecanol polyoxyethylene ether, 20% of fatty alcohol-polyoxyethylene ether sodium sulfate, 15% of coconut oil fatty acid diethanolamide, 7% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 4000.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of mannose erythritol ester, 0.4% of essence and 18.6% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.26, and the relative density of the bletilla striata water extract is 1.08.
Comparative example 2
The difference between the comparative example 2 and the example 4 is only that the raw material formula is different, specifically: the composite material comprises the following raw materials in percentage by mass:
24% of fatty alcohol-polyoxyethylene ether, 9% of isomeric tridecanol polyoxyethylene ether, 20% of fatty alcohol-polyoxyethylene ether sodium sulfate, 15% of coconut fatty acid diethanolamide, 7% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 4000.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.4% of essence and 18.45% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.26, and the relative density of the bletilla striata water extract is 1.08.
Comparative example 3
The difference between the comparative example 3 and the example 4 is only that the raw material formula is different, specifically:
28% of fatty alcohol-polyoxyethylene ether, 15% of isomeric tridecanol polyoxyethylene ether, 13% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12% of coconut fatty acid diethanolamide, 3% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 4000.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.6% of mannose erythritol ester, 0.4% of essence and 17.85% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.26, and the relative density of the bletilla striata water extract is 1.08.
Comparative example 4
The difference between the comparative example 4 and the example 4 is only that the raw material formula is different, specifically:
18% of fatty alcohol-polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether, 30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 10% of coconut oil fatty acid diethanolamide, 12% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 4000.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.6% of mannosylerythritol ester, 0.4% of essence and 17.85% of deionized water.
Wherein the relative density of the morinda officinalis water extract is 1.26, and the relative density of the bletilla striata water extract is 1.08.
Test examples
The prepared laundry detergent was tested, and the results were as follows:
(1) stability of
Cold resistance stability: placing in a refrigerator at (-5 +/-2) deg.C for 24h, taking out, recovering to room temperature, observing, and determining whether the product is qualified as non-layering, non-precipitation, transparent and non-turbid; heat resistance stability: and (3) taking out the house in an incubator at the temperature of (40 +/-2) ℃ for 24 hours, recovering to room temperature, and observing to obtain a product which is qualified by no layering, no precipitation, transparency and no turbidity. The results are shown in table 1:
table 1 stability test results
(2) Test of antibacterial Effect
Washing cotton fabrics by using the laundry detergents prepared in the example 4 and the comparative example 1, and then testing the bacteriostasis rate of the cotton fabrics, wherein the cotton fabrics are diluted by 6 times during washing, and the washing conditions are as follows: the water temperature is 30 +/-2 ℃, the water quality is 250mg/kg of hard water, and the washing time is 20 min. The bacteriostatic test method comprises the following steps: and respectively dripping the bacterial liquid on cotton fabric test pieces (1 multiplied by 1cm) washed by the laundry detergent and clear water, standing for 30min, adding a culture medium, culturing for 48h, and counting viable bacteria. The bacteriostasis rate is (average colony number of the clean water washing test piece-average colony number of the laundry detergent test piece)/average colony number of the clean water washing test piece multiplied by 100%. The results are shown in table 2:
TABLE 2 antibacterial Rate of washed Cotton Fabric
| Example 4 | Comparative example 1 | |
| Escherichia coli inhibitory rate (%) | 90.8 | 56.9 |
| Staphylococcus aureus inhibitory rate (%) | 92.1 | 74.2 |
(3) Detergency test
The laundry detergents prepared in the example 4 and the comparative example 1 and the commercial six-time concentrated laundry detergent are subjected to a dirt-removing power test, wherein the dilution factor is 6 times during the test, and the test standard refers to QB/T1224-. The water quality is 250mg/kg hard water. The results are shown in Table 3:
TABLE 3 detergency test results
| Example 4 | Comparative example 1 | Commercially available laundry detergent | |
| Detergency to carbon black | 15.50 | 15.25 | 13.35 |
| Detergency to protein | 19.15 | 18.90 | 14.10 |
| Detergency to sebum | 14.00 | 13.95 | 11.65 |
In table 3, the larger the detergency value, the better the detergency effect.
Therefore, compared with the conventional high-concentration laundry detergent, the high-concentration laundry detergent prepared by the invention has the advantages that the decontamination performance is greatly improved, and meanwhile, the high-concentration laundry detergent has good antibacterial effect and high stability.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The antibacterial high-concentration laundry detergent is characterized by comprising the following raw materials in percentage by mass:
20-26% of fatty alcohol-polyoxyethylene ether, 8-10% of isomeric tridecanol polyoxyethylene ether, 18-22% of fatty alcohol-polyoxyethylene ether sodium sulfate, 12-16% of coconut oil fatty acid diethanolamide, 6-8% of dodecyl glucoside, 1-1.8% of triethanolamine, 2-5% of ethanol, 0.1-0.5% of polyethylene glycol, 0.1-0.2% of sodium citrate, 0.3-0.8% of morinda officinalis water extract, 0.1-0.2% of bletilla striata water extract, 0.4-1% of mannose erythritol ester, 0-0.5% of essence and 15-20% of deionized water.
2. The antibacterial high-concentration laundry detergent as claimed in claim 1, which is characterized by comprising the following raw materials in percentage by mass:
24% of fatty alcohol-polyoxyethylene ether, 9% of isomeric tridecanol polyoxyethylene ether, 20% of fatty alcohol-polyoxyethylene ether sodium sulfate, 15% of coconut fatty acid diethanolamide, 7% of lauryl glucoside, 1.45% of triethanolamine, 3.5% of ethanol, 0.3% of polyethylene glycol, 0.15% of sodium citrate, 0.6% of morinda officinalis water extract, 0.15% of bletilla striata water extract, 0.6% of mannosylerythritol ester, 0.4% of essence and 17.85% of deionized water.
3. The antibacterial highly concentrated laundry detergent as claimed in claim 1 or 2, wherein the morinda citrifolia aqueous extract is obtained by decocting dried roots of morinda citrifolia with water, filtering, and concentrating; preferably, the morinda citrifolia aqueous extract has a relative density of 1.25-1.3.
4. The antibacterial highly concentrated laundry detergent according to any one of claims 1-3, wherein the bletilla striata water extract is obtained by extracting dry tubers of bletilla striata with water at high temperature, filtering and concentrating; preferably, the relative density of the bletilla striata water extract is 1.05-1.1.
5. The antibacterial highly concentrated laundry detergent of any one of claims 1 to 4, wherein the polyethylene glycol is at least one of polyethylene glycol 200, polyethylene glycol 400, and polyethylene glycol 600.
6. An antibacterial highly concentrated laundry detergent according to any of claims 1-5, characterized by the steps of:
s1, adding fatty alcohol-polyoxyethylene ether, isomeric tridecanol polyoxyethylene ether, fatty alcohol-polyoxyethylene ether sodium sulfate, coconut oil fatty acid diethanolamide, dodecyl glucoside, ethanol, polyethylene glycol and mannitol erythritol ester into deionized water, and heating and stirring uniformly;
s2, adding the morinda officinalis water extract and the bletilla striata water extract into the material obtained in the step S1, and heating and stirring uniformly;
s3, adding the rest raw materials into the material obtained in the step S2, and stirring at normal temperature until the raw materials are fully dissolved to obtain the material.
7. The method for preparing the antibacterial highly concentrated laundry detergent according to claim 6, wherein in the step S1, the heating and stirring temperature is 40-45 ℃; in the step S2, the heating and stirring temperature is 30-45 ℃.
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