CN109370799B - Antibacterial laundry detergent and application thereof - Google Patents
Antibacterial laundry detergent and application thereof Download PDFInfo
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- CN109370799B CN109370799B CN201811400230.1A CN201811400230A CN109370799B CN 109370799 B CN109370799 B CN 109370799B CN 201811400230 A CN201811400230 A CN 201811400230A CN 109370799 B CN109370799 B CN 109370799B
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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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- 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
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/1206—Water-insoluble compounds free metals, e.g. aluminium grit or flakes
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- 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
- C11D3/166—Organic compounds containing borium
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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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid 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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions
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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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3776—Heterocyclic compounds, e.g. lactam
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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
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38618—Protease or amylase in liquid compositions only
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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
- C11D1/04—Carboxylic acids or salts thereof
- C11D1/06—Ether- or thioether carboxylic acids
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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
- 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
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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
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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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
Abstract
The invention relates to a laundry detergent with antibacterial performance and application thereof. The laundry detergent comprises silver nanoparticles and a surfactant, wherein the silver nanoparticles account for 0.1-1.0% of the total weight of the laundry detergent, the surfactant accounts for 13.0-30.0% of the total weight of the laundry detergent, and the surfactant is a mixture of an anionic surfactant and a nonionic surfactant. Wherein the anionic surfactant is composed of fatty alcohol-polyoxyethylene ether sodium sulfate, alpha-alkenyl sodium sulfonate and fatty acid potassium, the fatty alcohol-polyoxyethylene ether sodium sulfate, the alpha-alkenyl sodium sulfonate and fat, and the nonionic surfactant is fatty alcohol-polyoxyethylene ether. The laundry detergent also comprises acrylic acid polymer and other auxiliary agents such as biological enzyme, enzyme stabilizer, chelating agent, perfume and the like. The laundry detergent disclosed by the invention has the beneficial effects of cleaning, easiness in rinsing, antibacterial property, antistatic property, smoothness, strong color protection and environmental friendliness.
Description
Technical Field
The invention relates to the technical field of detergents, in particular to an antibacterial laundry detergent and application thereof.
Background
The laundry detergent has the characteristics of being mild, easy to dissolve and low in energy consumption. In the markets of Europe, America and Japan, the laundry detergent accounts for 40-80% of the detergent market. The laundry detergent has a low market share after being started late in China, but the market of the laundry detergent keeps increasing at a high speed in recent years. Along with the continuous deepening of people's cognition on the laundry detergent, people's demand on the laundry detergent is also higher and higher, and besides the requirement for good detergency, other functions such as gentleness and not hurting hands, easy rinsing, smoothness, antistatic property, brightening property and environmental protection are also required.
Improved cleaning is a constant goal for laundry detergent manufacturers. In daily life, lipophilic dirt such as edible oil, engine oil and sebum dirt secreted by human body is often encountered, natural inorganic hydrophilic dirt is also encountered, except for occasional dirt in soil, most of the dirt is dust floating in the atmosphere, and in any area, more silicon, aluminum, iron, calcium and manganese are in any condition. The natural granular hydrophilic dirt and the hydrophilic dirt are mixed together to form an emulsion system to be attached to the fabric, and the stubborn dirt is difficult to remove. Despite the use of many effective surfactants, synthetic polymers, and combinations thereof, many surfactant-based products still fail to achieve complete cleaning of soiled objects. Conventional detergents rely on the solubilizing, wetting action of surfactants to remove a portion of the soil, but do not achieve satisfactory results.
In addition to soil removal, for effective cleaning it is also important that the soil or stain material is not redeposited onto the surface during the laundering process after being removed from the surface. It has now been found that certain polymers can perform this function by acting synergistically with surfactants to achieve satisfactory soil removal and to suspend the eluted soil in the wash solution to prevent redeposition of the soil onto the surface of the fabric. For example, CN1404525C discloses laundry detergent compositions containing hydrophobically modified polyamines and nonionic surfactants which provide enhanced removal of hydrophilic soils, especially clays. US5858948A discloses a laundry detergent containing a modified polyamine polymer, which contains functional modifying groups that can improve the soil release effect of the laundry detergent on cotton fabrics, and is compounded with components that can improve the soil release effect on non-cotton fabrics and protease. US2007272277a1 discloses a dishwashing agent comprising a plurality of polymeric components, the polymers being formed by copolymerisation of hydrophilic and lipophilic monomers, which improve the greasy soil removal capability of the dishwashing agent. WO2003062254A discloses laundry detergent compositions comprising lignin-derived material selected from the group consisting of lignin phenols and lignin phenols comprising amino substituents.
Improving the ease of rinsing is also one of the goals of laundry detergent manufacturers. The laundry detergent is easy to rinse, also called low-foam laundry detergent, and the laundry detergent mainly comprises polyether surfactant or sodium stearate, and the polyether surfactant is high in cost and difficult to thicken. Sodium stearate alone is unstable in large amounts and does not exhibit a low foaming effect in small amounts. Most of the laundry detergents on the market are prepared by compounding fatty alcohol-polyoxyethylene ether or isomeric alcohol ether serving as a main nonionic surfactant with fatty alcohol-polyoxyethylene sodium sulfate and sodium dodecyl benzene sulfonate. However, the laundry detergent mainly containing fatty alcohol-polyoxyethylene ether has good detergency, but the defoaming property is inferior to that of the laundry detergent mainly containing isomeric alcohol ether. On the contrary, the lotion mainly containing isomeric alcohol ether has good defoaming property and is easy to rinse, but the detergency is inferior to that of the lotion mainly containing fatty alcohol-polyoxyethylene ether.
The cleaning of daily clothes and textiles has always been the focus of attention, and generally, the cleaning of clothes not only includes removing visible dirt such as greasy dirt and dust, but also removing bacteria harmful to human body. The traditional laundry detergent mostly has the function of removing visible dirt, but does not have the functions of bacteriostasis and sterilization. Therefore, there is a need for laundry detergents that provide antimicrobial properties. CN105567454A discloses an antibacterial laundry detergent, which contains a composite antibacterial agent containing nano silver and natural botanical antibacterial agents, wherein the natural botanical antibacterial agents are aloe extract and lemon extract, but the application of the aloe extract and the lemon extract is limited to a great extent due to poor stability of the aloe extract and the lemon extract. CN106798716A discloses a colorless, transparent, anti-discoloration and strong-stability wash-free nano-silver antibacterial hand sanitizer. The main formula of the skin-moistening cream is 0.2-10% of skin-moistening agent, 0.1-3% of skin-moistening agent, 0.0005-0.1% of nano silver and 100% of water. Wherein the nano silver is added in the form of nano silver sol dispersion liquid, the addition amount is calculated according to the weight percentage of silver element, the final nano silver antibacterial moisturizing lotion contains 0.0005 to 0.1 weight percent of silver element, and the nano silver is nano silver simple substance colloid dispersion liquid or nano silver ion colloid dispersion liquid. CN102860923B discloses a nano-silver antibacterial hand sanitizer, which is prepared by dissolving nano-silver, a surfactant, a humectant, a coloring agent and a flavoring agent in deionized water, using deionized water as a carrier. Wherein the nano-silver, the surfactant, the humectant, the toner, the flavoring agent and the deionized water are respectively in the following weight percentage: nano silver: 0.0003 percent, 2.0 percent of sodium dodecyl polyoxyethylene ether sulfate (AES), 18.0 percent of sodium dodecyl sulfate (LAS), 8 percent of coconut oil alkyl diethanolamide (6501), 1 percent of glycerin, 1 percent of pearling agent, 0.01 percent of apple green, 0.6 percent of essence and the balance of deionized water. However, CN106798716A, CN102860923B relate to hand washing liquids, and their formulations are not suitable for use in laundry detergents.
In addition, in order to enable the laundry detergent to achieve the effects of cleanness, smoothness, color protection, static resistance and no stimulation to skin, a plurality of auxiliary agents are added, the formula is very complex, the cost is increased, and the content of effective substances is reduced.
Therefore, in the field of laundry detergents, it remains a goal of manufacturers to find laundry detergents that balance a variety of properties such as cleaning, softening, antistatic, antibacterial, hand-friendly, color-protective, and environmental-friendly.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide the laundry detergent with antibacterial property, which has the advantages of cleaning, easy rinsing, antibacterial property, antistatic property, smoothness, strong color protection and environmental friendliness. The antibacterial laundry detergent uses the silver nanoparticles and the surfactant in a matched manner, so that the antibacterial effect of the laundry detergent can be improved, the stability of the laundry detergent is also improved, and the antibacterial laundry detergent has the characteristics of cleaning, easiness in rinsing and environmental friendliness, and particularly has excellent color protection capability.
The invention also aims to provide application of the antibacterial laundry detergent in the field of daily chemicals.
The purpose of the invention is realized by the following technical scheme.
The laundry detergent with antibacterial performance comprises silver nanoparticles and a surfactant, wherein the silver nanoparticles account for 0.1-1.0% of the total weight of the laundry detergent, the surfactant accounts for 13.0-30.0% of the total weight of the laundry detergent, and the surfactant is a mixture of an anionic surfactant and a nonionic surfactant.
The weight ratio of the anionic surfactant to the nonionic surfactant is (10-22) to (3-8), wherein the anionic surfactant is composed of fatty alcohol-polyoxyethylene ether sodium sulfate, alpha-alkenyl sodium sulfonate and fatty acid potassium, the mass ratio of the fatty alcohol-polyoxyethylene ether sodium sulfate to the alpha-alkenyl sodium sulfonate to the fatty acid potassium is 1.0 (0.5-1.5) to (0.5-3.0), and the nonionic surfactant is fatty alcohol-polyoxyethylene ether.
Wherein the total weight of the anionic surfactant and the nonionic surfactant accounts for 18.0-25.0% of the total weight of the laundry detergent.
Wherein, the silver nano particles account for 0.3 to 0.5 percent of the total weight of the laundry detergent. Preferably, the silver nanoparticles of the present invention have a particle size of 5 to 100nm, more preferably 10 to 40 nm. The silver nanoparticles are selected from one or more of Ag-cit, Ag-PVP and Ag-BPEI, wherein cit represents citric acid, PVP represents polyvinylpyrrolidone and BPEI represents polyethyleneimine. Specifically, the silver nanoparticles are selected from citric acid-stable silver nanoparticles, Ag-cit for short, and the particle diameters of the silver nanoparticles can be 10nm, 20nm and 40 nm; silver nanoparticles stabilized with polyvinylpyrrolidone, abbreviated as Ag-PVP; the silver nano particles stabilized by polyethyleneimine are called Ag-BPEI for short. Wherein Ag-cit is commercially available or can be prepared as follows: dissolving silver nitrate in distilled water, heating in water bath, adding trisodium citrate under stirring, and making the solution turn yellow green. For Ag-PVP, it can be prepared by mixing silver nitrate solution, NaBH4, and polyvinylpyrrolidone PVP under vigorous stirring, and adjusting the pH to 4.0 with nitric acid solution. For Ag-BPEI, N- (2-hydroxyethyl) -piperazine-N' -2-ethanesulfonic acid (HEPES) was dissolved in a silver nitrate solution and the pH was adjusted to 6.5 with a Branched Polyethyleneimine (BPEI) solution, and the mixture was subsequently irradiated with a low pressure mercury lamp for a period of time. The silver nanoparticles of the present invention are particularly preferably Ag-PVP.
Wherein the laundry detergent further comprises an acrylic polymer and water. The acrylic polymer was a polymer having an average molecular weight of 400-2000 daltons. The acrylic polymer is a polymer of one or more monomers of acrylic acid and methacrylic acid. The acrylic acid polymer accounts for 1.0-20.0% of the total weight of the laundry detergent.
The invention also provides the application of the laundry detergent, which is characterized in that the laundry detergent is used for resisting bacteria to fabrics in fabric washing and enabling the fabrics to maintain the natural color of the fabrics.
According to the invention, through a large amount of compounding, the combination of the following anionic surfactant and nonionic surfactant is finally determined to be used, wherein the anionic surfactant is fatty alcohol polyoxyethylene ether sodium sulfate, alpha-alkenyl sodium sulfonate and fatty acid potassium, and the nonionic surfactant is fatty alcohol polyoxyethylene ether. The sodium fatty alcohol polyoxyethylene ether sulfate has good decontamination, wetting and emulsifying properties, good water solubility and hard water resistance, no precipitate generation under high calcium and magnesium ion concentration, and good calcium soap dispersibility. The sodium alpha-olefin sulfonate has a strong detergency and shows no decrease in detergency even in hard water. The fatty acid potassium can be used as one of the main components of the laundry detergent and has an effective defoaming effect, so that a formula system is simplified. The fatty alcohol-polyoxyethylene ether has good decontamination, wetting, foaming and emulsifying properties, and has higher degreasing property and hard water resistance.
The inventor finds that when the three anionic surfactants and the nonionic surfactant fatty alcohol-polyoxyethylene ether are compounded, the laundry detergent not only can achieve excellent decontamination capability, but also has the characteristics of easy rinsing, softness, environmental protection.
The present invention uses an acrylic polymer which enables the soil removed by the surfactant to be dispersed in water without re-attaching to the laundry. The acrylic polymer of the present invention may be obtained by radical polymerization of one or both of acrylic and methacrylic monomers in an aqueous medium, and for the purpose of adjusting the molecular weight, isopropyl alcohol may be used as a molecular weight adjuster.
In the presence of the acrylic polymer, after the silver nanoparticles are added, in addition to the excellent bactericidal effect on the laundry detergent, the invention also surprisingly discovers that the silver nanoparticles and the acrylic polymer are matched for use, the silver nanoparticles are easier to disperse in the laundry detergent due to the nanometer size of the silver nanoparticles, and the acrylic polymer can play a role in stabilizing the silver nanoparticles, so that the acrylic polymer can be more uniformly dispersed in the laundry detergent due to the interaction of the silver nanoparticles and the acrylic polymer. Therefore, the acrylic polymer can fully exert the functions of dispersing and inhibiting scale of the acrylic polymer, adsorb and wrap dirt (including eluted dye molecules), and avoid color cross-linking, thereby having excellent color protection capability.
Other auxiliary agents such as biological enzymes, enzyme stabilizers, chelating agents, perfumes and the like can also be added into the laundry detergent. Wherein the biological enzyme is one or more of liquid protease, lipase or cellulase; the enzyme stabilizer is one or more of 4-formylphenylboronic acid, formate, propionate and borax. The preparation method of the laundry detergent with antibacterial performance comprises the following steps: adding the sodium fatty alcohol-polyoxyethylene ether sulfate, the alpha-sodium alkenyl sulfonate, the potassium fatty acid and the fatty alcohol-polyoxyethylene ether into water at the temperature of 40-60 ℃ according to the dosage required by the formula. The acrylic polymer was then added slowly with rapid stirring. After stirring evenly, the biological enzyme, the enzyme stabilizer, the chelating agent and the essence are selectively added. And (3) cooling to 20-30 ℃, adding the silver nanoparticles with the formula dosage, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Compared with the prior art, the invention has the following advantages:
(1) the invention uses the combination of the nonionic surfactant and the anionic surfactant to be matched with the acrylic acid polymer, further improves the decontamination capability of the laundry detergent, effectively inhibits the stains from being adsorbed back to the clothes again, and simultaneously ensures that the laundry detergent has the characteristics of easy rinsing, smoothness, green and environmental protection.
(2) According to the invention, the silver nanoparticles are used in cooperation with the surfactant, so that an excellent antibacterial effect is provided, and bacteria such as escherichia coli and staphylococcus aureus can be effectively removed. In addition, the silver nanoparticles and the acrylic acid polymer are matched for use, the silver nanoparticles are easier to disperse in the laundry detergent due to the nanometer size of the silver nanoparticles, the acrylic acid polymer can play a role in stabilizing the silver nanoparticles, and the acrylic acid polymer can be more uniformly dispersed in the laundry detergent due to the interaction of the silver nanoparticles and the acrylic acid polymer. Therefore, the acrylic polymer can fully exert the functions of dispersing and inhibiting scale of the acrylic polymer, adsorb and wrap dirt (including eluted dye molecules), and avoid color cross-linking, thereby having excellent color protection capability.
(3) The invention has the advantages of easily obtained raw materials, simple preparation process and low cost, and can be applied to industrial mass production. The prepared laundry detergent with antibacterial activity has high antimicrobial efficiency, no toxicity, no stimulation, environmental friendliness and easy biodegradation.
Detailed Description
The invention is illustrated below with reference to specific examples, which are intended to be illustrative and not limiting. The raw materials used in the following examples are all commercially available.
The examples of the present invention employ the laundry detergent formulations of table 1.
TABLE 1 formulation of examples 1-14 laundry detergent (in the Table, the "examples" are abbreviated as "examples")
In the table, the units of the components in the formulation are grams, the biological enzyme used is liquid protease, and the enzyme stabilizer is 4-formylphenylboronic acid. The silver nano-particles are Ag-PVP (20 nm).
Example 1
The preparation method of the laundry detergent comprises the following steps: 40 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 40 g of sodium alpha-alkenyl sulfonate, 80 g of potassium fatty acid and 70 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 40 ℃. Then 90 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 1 g of silver nano-particle Ag-cit, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 2
The preparation method of the laundry detergent comprises the following steps: 60 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 40 g of sodium alpha-alkenyl sulfonate, 80 g of potassium fatty acid and 30 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 60 ℃. Then 100 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 20 ℃, adding 5 g of silver nano particles Ag-cit, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 3
The preparation method of the laundry detergent comprises the following steps: 40 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 20 g of sodium alpha-alkenyl sulfonate, 60 g of potassium fatty acid and 80 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 50 ℃. Then 50 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 10 g of silver nano particles Ag-cit, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 4
The preparation method of the laundry detergent comprises the following steps: 50 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 60 g of alpha-sodium alkenyl sulfonate, 100 g of potassium fatty acid and 50 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 60 ℃. Then 10 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 1 g of silver nano-particle Ag-PVP, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 5
The preparation method of the laundry detergent comprises the following steps: 40 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 60 g of sodium alpha-alkenyl sulfonate, 80 g of potassium fatty acid and 50 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 40 ℃. Then 150 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 8 g of silver nano-particle Ag-PVP, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 6
The preparation method of the laundry detergent comprises the following steps: 50 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 40 g of sodium alpha-alkenyl sulfonate, 80 g of potassium fatty acid and 60 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 50 ℃. Then 80 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) when the temperature is reduced to 20 ℃, adding 3 g of silver nano-particle Ag-PVP, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 7
The preparation method of the laundry detergent comprises the following steps: 40 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 50 g of sodium alpha-alkenyl sulfonate, 100 g of potassium fatty acid and 80 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 60 ℃. Then 50 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 6 g of silver nano particle Ag-BPEI, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 8
The preparation method of the laundry detergent comprises the following steps: 40 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 30 g of sodium alpha-alkenyl sulfonate, 50 g of potassium fatty acid and 40 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 50 ℃. Then 1 g of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 2 g of silver nano particle Ag-BPEI, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 9
The preparation method of the laundry detergent comprises the following steps: 60 g of sodium fatty alcohol-polyoxyethylene ether sulfate, 40 g of sodium alpha-alkenyl sulfonate, 60 g of potassium fatty acid and 50 g of fatty alcohol-polyoxyethylene ether are added into water with the temperature of 60 ℃. Then 100 grams of polyacrylic acid was slowly added with rapid stirring. After stirring uniformly, 10 g of biological enzyme (liquid protease), 10 g of 4-formylphenylboronic acid as an enzyme stabilizer, 10 g of chelating agent and 5 g of essence are added. And (3) cooling to 30 ℃, adding 6 g of silver nano particle Ag-BPEI, supplementing the balance of water, and uniformly stirring to obtain the laundry detergent with antibacterial property.
Example 10
A laundry detergent was prepared according to the formulation and method of example 1, except that no silver nanoparticles were added.
Example 11
A laundry detergent was prepared according to the formulation and method of example 1 except that no polyacrylic acid was added.
Example 12
A laundry detergent was prepared according to the formulation and method of example 1 except that no potassium fatty acid was added.
Example 13
A laundry detergent was prepared according to the formulation and method of example 1 except that potassium fatty acid was replaced with sodium dodecylbenzenesulfonate.
Example 14
A laundry detergent was prepared according to the formulation and method of example 1, except that sodium alpha-alkenyl sulfonate was replaced with sodium dodecylbenzenesulfonate.
Example 15 detergency test
The standard liquid and the standard soiled cloth are prepared according to QB/T1224-2012 liquid detergent for the clothing and GB/T13174-2008 determination of detergency and circulating washing performance of the detergent for the clothing. According to the standard laundry detergent in the detergency tests of QB/T1224-2012 laundry liquid detergent and concentrated liquid detergent marking product technical specification, the test concentration of the standard laundry detergent is 0.2%, the test concentration of the sample is (0.2/n)%, and n is sample active substance%/15%. The washing temperatures were standard (30 ℃) and low (20 ℃) respectively, and the test results are shown in tables 2 and 3 respectively.
Table 2 (washing temperature 30 ℃ C.)
| Example numbering | JB-01/P | JB-02/P | JB-03/P |
| 1 | 1.25 | 1.15 | 1.37 |
| 2 | 1.29 | 1.13 | 1.35 |
| 3 | 1.35 | 1.18 | 1.29 |
| 4 | 1.32 | 1.16 | 1.31 |
| 5 | 1.37 | 1.19 | 1.30 |
| 6 | 1.28 | 1.17 | 1.28 |
| 7 | 1.27 | 1.16 | 1.33 |
| 8 | 1.33 | 1.18 | 1.36 |
| 9 | 1.28 | 1.20 | 1.31 |
| 10 | 1.13 | 1.12 | 1.15 |
| 11 | 1.02 | 1.04 | 1.04 |
| 12 | 1.01 | 1.04 | 1.03 |
| 13 | 1.06 | 1.03 | 1.05 |
| 14 | 1.05 | 1.02 | 1.06 |
Table 3 (washing temperature 20 ℃ C.)
Experimental results show that the detergency of the liquid laundry detergent samples of examples 1-14 on carbon black dirt cloth, protein dirt cloth and sebum dirt cloth is not less than 1.0 at the low temperature of 20 ℃ and the standard temperature of 30 ℃, and the liquid laundry detergent samples are proved to have good decontamination effect. In addition, the laundry detergents of examples 1 to 9 of the present application have superior detergency to the laundry detergents of examples 10 to 14.
Example 16 antimicrobial Capacity test
The antibacterial capacity test of the laundry detergent sample with antibacterial performance is carried out according to QB/T2738 plus 2012 evaluation method for antibacterial and bacteriostatic effects of daily chemical products, the action concentration is 1:100, the action time is 20 minutes, and the experimental result shows that the sterilization rate of all samples in examples 1-14 on staphylococcus aureus and Escherichia coli ATCC 25922 of ATCC 6538 is shown in Table 4.
TABLE 4 antibacterial property test effect of antibacterial laundry detergent
The experimental results show that the laundry detergents of examples 1 to 9 of the present invention have excellent antibacterial effects. Whereas example 10 did not exhibit bactericidal activity due to the absence of added nano-complex silver ions. Examples 11 to 14 also exhibited better bactericidal effects, but they were inferior to examples 1 to 9. And the sterilizing effect of example 11 without adding polyacrylic acid was more decreased.
Example 17 color protection force test
The fugitive greenish black laundry was cut into 150 samples of 15cm x 15cm, subjected to the same staining, and then 10 samples were washed separately with the commercial laundry detergent and the laundry detergents of examples 1-14 (i.e., 10 samples were washed with each laundry detergent).
The specific operation is as follows: 1. taking a proper amount of commercially available laundry detergent to wash a sample; 2. the laundry detergents of examples 1-14 were used to wash samples in an amount 1/2 corresponding to the amount of commercially available laundry detergent.
The experimental results are as follows: the samples washed with the laundry detergents prepared in examples 1-9 of the present invention restored the original brightness and luster, as compared with the original clothes; on the other hand, the samples washed with the commercial laundry detergents and the laundry detergents of examples 10 (without adding silver nanoparticles), 11 (without adding polyacrylic acid), 12-14 (using different anionic surfactant combinations) still have not beautiful luster and color even though the stains are removed, wherein the laundry detergent without adding polyacrylic acid (example 11) performs inferior. The experimental results show that the laundry detergent disclosed by the invention has a good color protection effect. The acrylic polymer can be more uniformly dispersed in the laundry detergent due to the interaction of the acrylic polymer and the silver nanoparticles, so that the acrylic polymer can more fully exert the dispersion and scale inhibition effects of the acrylic polymer, adsorb and wrap dirt (including eluted dye molecules), avoid cross color and have excellent color protection capability. The combination of different anionic surfactants causes different dispersion degrees of the laundry detergent, and the color protection effect of the laundry detergent is also influenced to a certain extent.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. The laundry detergent with antibacterial performance is characterized in that the laundry detergent comprises silver nanoparticles and a surfactant, the silver nanoparticles account for 0.1-1.0% of the total weight of the laundry detergent, the surfactant accounts for 13.0-30.0% of the total weight of the laundry detergent, the surfactant is a mixture of an anionic surfactant and a nonionic surfactant, the weight ratio of the anionic surfactant to the nonionic surfactant is (10-22): (3-8), the anionic surfactant is composed of fatty alcohol-polyoxyethylene ether sodium sulfate, alpha-alkenyl sodium sulfonate and fatty acid potassium, and the mass ratio of the fatty alcohol-polyoxyethylene ether sodium sulfate to the alpha-alkenyl sodium sulfonate to the fatty acid potassium is 1.0: (0.5-1.5): (0.5-3.0), wherein the nonionic surfactant is fatty alcohol-polyoxyethylene ether;
the average particle size of the silver nanoparticles is 5-100nm, the silver nanoparticles are selected from one or more of Ag-cit, Ag-PVP and Ag-BPEI, wherein cit represents citric acid, PVP represents polyvinylpyrrolidone, and BPEI represents polyethyleneimine;
the laundry detergent also comprises an acrylic polymer and water.
2. The laundry detergent according to claim 1, characterized in that the total weight of the anionic surfactant and the nonionic surfactant is 18.0-25.0% by weight of the total weight of the laundry detergent.
3. The laundry detergent according to claim 1, characterized in that the percentage of silver nanoparticles to the total weight of the laundry detergent is 0.3-0.5%.
4. The laundry detergent of claim 1, wherein the acrylic polymer is a polymer having an average molecular weight of 400-2000 daltons.
5. The laundry detergent of claim 1, wherein the acrylic polymer is a polymer of one or more monomers selected from acrylic acid and methacrylic acid.
6. The laundry detergent according to claim 1, characterized in that the acrylic polymer is present in an amount of 1.0-20.0% by weight based on the total weight of the laundry detergent.
7. Use of a laundry detergent according to any of claims 1-6, characterized in that the laundry detergent is used in the laundering of fabrics for its antibacterial properties and for maintaining the fabric's natural color.
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| CN111635835B (en) * | 2020-06-30 | 2021-07-27 | 成都蓝风(集团)股份有限公司 | Disinfecting laundry detergent and preparation method thereof |
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| CN113214919A (en) * | 2021-05-19 | 2021-08-06 | 厦门力嘉诚生物科技有限公司 | Graphene bacteriostatic and stain-removing laundry detergent and preparation method thereof |
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