CN109234086B - Concentrated detergent composition - Google Patents
Concentrated detergent composition Download PDFInfo
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- CN109234086B CN109234086B CN201811042217.3A CN201811042217A CN109234086B CN 109234086 B CN109234086 B CN 109234086B CN 201811042217 A CN201811042217 A CN 201811042217A CN 109234086 B CN109234086 B CN 109234086B
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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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/045—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on non-ionic surface-active compounds and soap
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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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
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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
- C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
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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
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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
- C11D1/02—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
- C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
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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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- 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
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
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Abstract
The invention relates to the technical field of daily chemical washing products, in particular to a concentrated detergent composition which is low in foam, easy to float, instant at low temperature and good in process operability. According to the invention, the fatty alcohol EO/PO block polyether nonionic with a specific structure and the saturated fatty acid soap are compounded according to a certain proportion, so that the problem of overhigh foam in the initial washing stage of the concentrated laundry detergent is solved, and the concentrated detergent composition has excellent low-foam and easy-to-float performance; and then, a proper amount of other proper surfactants are added to realize the synergistic effect among the components, so that the concentrated detergent composition has better low-temperature instant solubility and process operability.
Description
Technical Field
The invention relates to the technical field of daily chemical washing products, in particular to a concentrated detergent composition which is low in foam, easy to float, instant at low temperature and good in process operability.
Background
Worldwide, laundry detergents have slowly replaced washing powders as the mainstream laundry detergents. Along with the enhancement of the environmental awareness of people, the trend of the liquid detergent concentration is more and more obvious, the concentrated detergent has the advantages of saving packaging materials, saving storage space and saving logistics cost, and the implementation of the concentration technology is favorable for the sustainable development of the detergent industry.
At present, the popularization rate of the washing machine in China exceeds 80%, the drum washing machine slowly becomes a mainstream washing machine by virtue of the advantages of small abrasion to clothes and water saving, and the sales volume of the drum washing machine in China in 2017 and 1 month accounts for 47% of the total sales volume of all the washing machines. The low-foam detergent is suitable for a drum washing machine, excessive foam in the washing process can cause overflow of the detergent, damage can be caused to parts of the washing machine, and excessive surfactant is easy to remain on the surface of fabrics due to difficult rinsing of the high-foam detergent.
Usually, the laundry detergent is added with fatty acid soap to adjust foam, for example, patent document CN 102876483 a discloses a low-foam easy-to-rinse laundry detergent composition, which achieves low-foam easy-to-rinse effect by compounding saturated fatty acid soap and unsaturated fatty acid soap. Patent document CN 103013723B discloses a low-foam easy-rinsing laundry detergent composition, which is prepared by adding 0.02-10% of dimethicone and 0.5-30% of fatty acid soap to achieve low-foam easy-rinsing.
Fatty acid soaps have been popular with formulation engineers for a long time because of their good defoaming effect in laundry detergents, but the fatty acids sold industrially are usually mixed fatty acids, generally composed of saturated fatty acids and unsaturated fatty acids, and the unsaturated fatty acids have good low-temperature stability but their defoaming efficiency is not high. Saturated fatty acid can combine with the calcium ion in the water and form soap calcium in the washing process, soap calcium spreads on the liquid film surface of foam thereby producing the surface pressure difference, the surface pressure difference has promoted the foam unstable, therefore saturated fatty acid has excellent defoaming performance, but the calcium soap that saturated fatty acid formed in water is poor in solubility in water, the adsorption rate at gas-liquid interface is far lower than that of other surfactants, therefore the phenomenon that the foam is too high in the initial stage of machine washing can appear, the foam is too high and can cause damage to the washing machine, a technical scheme is needed to be found to solve the problem that the initial foam of the washing agent is too high.
Disclosure of Invention
The invention provides a concentrated detergent composition aiming at the problem that the foam is too high in the initial stage when the existing detergent containing fatty acid soap is used for machine washing, and the concentrated detergent composition solves the problem of the foam is too high in the initial stage of washing of the concentrated detergent by compounding fatty alcohol EO/PO block polyether nonionic with a specific structure and saturated fatty acid soap.
In order to achieve the purpose, the invention adopts the following technical scheme.
The concentrated detergent composition comprises 0.5-5.0% by mass of fatty alcohol EO/PO block polyether nonionic surfactant and 2.0-6.0% by mass of saturated fatty acid soap.
The structural formula of the fatty alcohol EO/PO block polyether nonionic surfactant is as follows:
wherein n is 10-18; m is the average addition number of EO, and is 5-8; z is the average addition number of PO, and is 0.5-3.0; cnH2n+1Is a straight chain alkyl group or an alkyl group containing a branched chain.
Preferably, the HLB value of the fatty alcohol EO/PO block polyether nonionic surfactant is 8-13; more preferably, the HLB value is 8 to 10.
Preferably, the saturated fatty acid soap is at least one selected from fatty acid soaps with carbon chains of C10-C18; more preferably, the saturated fatty acid soap is at least one selected from the group consisting of C10:0 n-decanoic acid, C12:0 lauric acid, C14:0 myristic acid, C16:0 palmitic acid, C17:0 pearlescent fatty acid, potassium salt, sodium salt, amine salt and alkylamine salt of C18:0 stearic acid.
Preferably, the concentrated detergent composition further comprises 1.0-10% by mass of an ethoxylated fatty acid methyl ester nonionic surfactant; the structural formula of the ethoxylated fatty acid methyl ester nonionic surfactant is as follows:
wherein R is a linear alkyl or branched alkyl with a carbon chain of C10-C18, and n is 8-16.
More preferably, the mass percentage of the ethoxylated fatty acid methyl ester nonionic surfactant in the concentrated detergent composition is 1.0-5.0%.
Preferably, the concentrated detergent composition further comprises 1.0-4.0% by mass of sodium citrate; the structural formula of the sodium citrate is as follows:
preferably, the concentrated detergent composition further comprises 1.0-6.0 wt% of short-chain fatty alcohol, wherein the short-chain fatty alcohol is one or two of propylene glycol, ethanol and isopropanol.
Preferably, the concentrated detergent composition further comprises 10-25 wt% of other nonionic surfactants; the other nonionic surfactant is at least one selected from C12-C18 fatty alcohol polyoxyethylene ether, C12-C14 alkyl glycoside, C8-C20 branched alcohol polyoxyethylene ether, fatty acid alkylolamide, ethoxylated sorbitan ester and fatty acid alkoxylate.
More preferably, the C12-C14 alkyl glycoside has the following structural formula:
wherein n is 12 to 14, and p is 1.1 to 3.
More preferably, the fatty acid alkoxylate is ethoxylated C8-C18 fatty acid ester, and the average ethoxylation degree is 2-10.
More preferably, the ethoxylated sorbitan ester is an ethoxylated alkyl sorbitan ester; the carbon number of the alkyl group in the ethoxylated sorbitan alkyl ester is 6-18, and the average ethoxylation degree is 4-20.
More preferably, the carbon number of the fatty acid in the fatty acid alkylolamide is 6-24, and the number of the alkyl alcohol is 0-2; more preferably, the fatty acid alkylolamides are monoethanolamides, diethanolamides or isopropanolamides with fatty acid carbon numbers of 8-18; more preferably, the fatty acid alkylolamide is coconut oleic acid diethanolamide.
Preferably, the concentrated detergent composition further comprises 10-25% by mass of an anionic surfactant; the anionic surfactant is selected from at least one of C11-C18 alkyl benzene sulfonate (LAS) and derivatives thereof, alpha-olefin sulfonate, C12-C18 alkyl alkoxy sulfate (AES), C14-C18 fatty acid Methyl Ester Sulfonate (MES), ethoxylated fatty alcohol sulfate, alkyl disulfonic acid sodium or derivatives thereof, fatty acid alkyl ester sulfate and sulfosuccinate.
More preferably, the alkylbenzene sulfonate has the following structural formula:
wherein R is1Is C6-24 alkyl, R1Is a straight chain alkyl group or a branched alkyl group,and R is1Is a saturated alkyl group or an alkyl group having an unsaturated double bond, preferably, R1Is a linear alkyl group having 8 to 18 carbon atoms; m+Is a cation.
More preferably, the ethoxylated fatty alcohol sulfate has the following structural formula:
wherein R is1Is C6-24 alkyl, R1Is a straight chain alkyl or branched alkyl group, and R1Is a saturated alkyl group or an alkyl group having an unsaturated double bond; preferably, R1Is a linear alkyl group having 8 to 18 carbon atoms; an average degree of ethoxylation X is 0.5-30, a preferred average degree of ethoxylation X is 0.5-10, and a more preferred average degree of ethoxylation X is 0.5-3; m+Is a cation.
More preferably, the alpha-olefin sulfonate has the following structural formula:
wherein a is 0 to 2, R1Is an alkyl group having 6 to 24 carbon atoms, more preferably, R1Is an alkyl group having 8 to 18 carbon atoms.
More preferably, the sodium alkyldisulfonate or a derivative thereof is sodium alkyldiphenyloxide disulfonate, and more preferably, the sodium alkyldiphenyloxide disulfonate is sodium dodecyldiphenyloxide disulfonate.
More preferably, the fatty acid alkyl ester sulfate is fatty acid Methyl Ester Sulfate (MES) having 8 to 18 carbon atoms in a fatty acid.
More preferably, the sulfosuccinate is fatty alcohol polyoxyethylene ether sulfosuccinate disodium salt with the carbon number of fatty alcohol of 8-18 and the average ethoxylation degree of 2.0.
Preferably, the concentrated detergent composition further comprises 0.001-5% by mass of an enzyme preparation; the enzyme preparation is at least one selected from protease, alpha-amylase, cellulase, hemicellulase, phospholipase, esterase, lipase, peroxidase/oxidase, pectinase, lyase, mannanase, cutinase, reductase, xylanase, pullulanase, tannase, pentosanase, maltoglycan, arabinase and beta-glucanase.
Preferably, the mass percent of the enzyme preparation in the concentrated detergent composition is 0.01-2%.
Preferably, the concentrated detergent composition further comprises an enzyme stabilizing system with the mass percent of 0.001-10%; the enzyme stabilizing system is compatible with detergent compositions; more preferably, the enzyme stabilizing system is selected from at least one of calcium ions, boric acid, borax, propylene glycol, glycerol and polyols.
Preferably, the mass percent of the active matters in the concentrated detergent composition is 40-60%; the active refers to the component of the concentrated detergent composition which belongs to the surfactant.
In the above-mentioned concentrated detergent composition, the components belonging to the surfactant include: fatty alcohol EO/PO block polyether nonionic surfactant, fatty acid methyl ester ethoxylated nonionic surfactant, nonionic surfactant and anionic surfactant.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the fatty alcohol EO/PO block polyether nonionic surfactant with a specific structure and the saturated fatty acid soap are compounded according to a certain proportion, so that the problem of overhigh foam in the initial washing stage of the concentrated laundry detergent is solved, and the concentrated detergent composition disclosed by the invention has excellent low-foam and easy-to-float performance and low foam in the whole process, is suitable for washing by a washing machine, cannot damage washing machine accessories and saves water and electricity resources; and then, a proper amount of other proper surfactants are added to realize the synergistic effect among the components, so that the concentrated detergent composition has better low-temperature instant solubility and process operability, and has transparent appearance.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further described and illustrated below with reference to specific embodiments, the following embodiments are only some embodiments of the present invention, and other embodiments of the present invention can be implemented according to the following embodiments.
In the following examples, all amounts are by weight unless otherwise indicated, and the amounts of the listed ingredients are converted to active material amounts.
All percentages, parts and ratios are based on the total weight of the composition of the present invention, unless otherwise specified. All weights as they pertain to listed ingredients are assigned to levels of active material and, therefore, do not include solvents or by-products that may be included in commercially available materials, unless otherwise specified. The term "weight content" herein may be represented by the symbol "%".
All formulations and tests herein occur at 25 ℃ environment, unless otherwise indicated.
The use of "including," "comprising," "containing," "having," or other variations thereof herein, is meant to encompass the non-exclusive inclusion, as such terms are not to be construed. The term "comprising" means that other steps and ingredients can be added that do not affect the end result.
The concentrated detergent is mainly a concentrated fabric detergent with active matter content of 40-60%, and particularly a concentrated liquid fabric detergent which is applied to a clothes washing process (including hand washing or machine washing) and removes dirt on clothes, such as granular dirt, grease dirt and various high molecular dirt, through mechanical friction, solubilization, emulsification physical action and enzyme preparation catalytic action.
Low sudsing means that the detergent is not easy to generate foam or the generated foam disappears rapidly during the washing process, and the foam index can be tested by various test standards, such as the actual foam test of a washing machine.
The HLB value (Hydrophile-Lipophile Balance Number) is called the hydrophilic-hydrophobic equilibrium value, and is also called the water-oil degree. In HLB, H is "Hydrophile" to indicate hydrophilicity, L is "lipophilicity" to indicate lipophilicity, and B is "Balance" to indicate Balance.
The HLB value can be calculated from the following equation: 20 (M) × (M)W/(MO+Mw))
MWDenotes the molecular weight of the hydrophilic group of the surfactant, MORepresents the molecular weight of the hydrophobic group of the surfactant.
Fatty alcohol EO/PO block polyether nonionic surfactants are commonly used in the industrial cleaning industry as low foaming surfactants. The EO group in the fatty alcohol block polyether nonionic is hydrophilic, the PO is hydrophobic, the hydrophilic group and the hydrophobic group block are easier to aggregate in water to form micelles or aggregate on a gas-liquid interface, on one hand, the surface tension of the gas-liquid interface is increased, so that the gas-liquid interface is unstable, on the other hand, the hydrophobic group and the hydrophilic group are staggered to generate steric hindrance, and a large number of gaps are generated in a liquid film, so that the liquid film is easier to break. The low foaming nature of the fatty alcohol EO/PO block polyether is known in the industry, but in a complex concentrated detergent system, the low foaming nature of the detergent is only one of many surfactants, and the foaming problem of the detergent cannot be solved only by means of the surfactant, and in addition, not all the surfactants with the EO/PO polyether block structure can be found to solve the foaming problem, and the molecular HLB value, the number of EO, the number of PO and the length of the carbon chain influence the defoaming effect. In the present invention, a surfactant having a specific structure among such surfactants is used in combination with a saturated fatty acid soap to solve the foaming problem.
The fatty alcohol EO/PO block polyether nonionic surfactant adopted in the embodiment of the invention has the following structural formula:
wherein n is 10-18, m is the average addition number of EO, and 5-8 are selected; z is the average addition number of PO, and is 0.5-3.0, CnH2n+1Is a straight chain alkyl group or an alkyl group containing a branched chain.
The HLB value of the fatty alcohol EO/PO block polyether nonionic surfactant is selected from 8.0-13.0, and more preferably from 8.0-10.0.
The mass percentage of the block polyether nonionic surfactant in the whole composition is 0.5-5.0%.
Fatty acid soaps have been favored by formulation engineers for a long time because of their good antifoaming effect in laundry detergents, but commercially available fatty acids are usually mixed fatty acids, generally consisting of saturated fatty acids and unsaturated fatty acids, and unsaturated fatty acids have poor antifoaming efficiency although they have good low temperature stability. Saturated fatty acid can combine with calcium ion in water to form soap calcium with poor water solubility in the washing process, the soap calcium spreads on the liquid film surface of foam to generate surface pressure difference, and the surface pressure difference promotes the foam to be unstable, so that the saturated fatty acid has excellent defoaming performance.
The concentrated detergent composition of the embodiment of the invention contains 2.0-6.0% (by weight) of saturated fatty acid soap. The fatty acid soap is selected from one or more saturated fatty acid soaps with carbon chain number of 10-18, such as at least one of C10:0 n-decanoic acid, C12:0 lauric acid, C14:0 myristic acid, C16:0 palmitic acid, C17:0 pearlescent fatty acid, and C18:0 potassium salt, sodium salt, amine salt and alkylamine salt of stearic acid.
The concentrated detergent composition provided by the embodiment of the invention can contain 1-10% of ethoxylated fatty acid methyl ester nonionic surfactant, and is used for improving the low-temperature solubility of the concentrated detergent. The ethoxylated fatty acid methyl ester nonionic surfactant has the following structure:
in the structural formula, R is selected from C10-C18 alkyl, the alkyl can be straight chain or branched chain, and n is selected from 8-16.
The concentrated detergent composition in the embodiment of the invention can contain 1.0-4.0% of sodium citrate, the sodium citrate is usually used as a chelating agent in a detergent, and the invention can effectively prevent the gelling phenomenon in the process of detergent preparation by utilizing the beneficial effects of the sodium citrate in the preparation process in addition to the chelating function. Sodium citrate has the following structural formula:
short-chain fatty alcohol is preferably added in the embodiment of the invention to reduce the viscosity of the concentrated detergent, and the short-chain fatty alcohol can be one or two selected from propylene glycol, ethanol and isopropanol.
The concentrated detergent composition in the embodiment of the invention also contains 10-25% of other nonionic surfactants by mass percent; the other nonionic surfactant is at least one selected from C12-C18 fatty alcohol polyoxyethylene ether, C12-C14 alkyl glycoside, C8-C20 branched alcohol polyoxyethylene ether, fatty acid alkylolamide, ethoxylated sorbitan ester and fatty acid alkoxylate.
The concentrated detergent composition also contains 10-25% by mass of an anionic surfactant; the anionic surfactant is selected from at least one of C11-C18 alkyl benzene sulfonate (LAS) and derivatives thereof, alpha-olefin sulfonate, C12-C18 alkyl alkoxy sulfate (AES), C14-C18 fatty acid Methyl Ester Sulfonate (MES), ethoxylated fatty alcohol sulfate, alkyl disulfonic acid sodium or derivatives thereof, fatty acid alkyl ester sulfate and sulfosuccinate.
The concentrated detergent compositions of the present embodiments may comprise one or more enzyme preparations to provide cleaning performance, fabric care and/or other benefits. The enzyme preparation is selected from the following enzyme groups: proteases, alpha-amylases, cellulases, hemicellulases, phospholipases, esterases, lipases, peroxidases/oxidases, pectinases, lyases, mannanases, cutinases, reductases, xylanases, pullulanases, tannases, pentosanases, maltoglucanases, arabinases, beta-glucanases. Commonly used enzyme preparations are proteases, amylases, lipases, cutinases and/or cellulases. The enzyme preparation is present at a level of from 0.001% to 5%, preferably from 0.01% to 2% of the concentrated detergent composition.
The detergent compositions of the present embodiments may comprise from 0.001% to 10% by weight of the concentrated detergent composition of an enzyme stabilizing system. The enzyme stabilizing system is compatible with detergent compositions and may comprise one or more mixtures of calcium ions, boric acid, borax, propylene glycol, glycerol, polyols. The weight and amount of the enzyme stabilizing system will vary depending on the form and composition of the detergent composition and the type of enzyme preparation.
Some of the components referred to in the examples are illustrated below:
LASNa: linear alkyl benzene sulfonic acid Na, the number of carbon atoms is 10-13, and an anionic surfactant.
AES: ethoxylated fatty alcohol sulfate, wherein the number of carbon atoms of fatty alcohol is 12-14, the average ethoxylation degree is 2, and the anionic surfactant is used as the surfactant.
AEO 7: ethoxylated fatty alcohol, average degree of ethoxylation 7, nonionic surfactant.
APG: the alkyl glycoside nonionic surfactant has a fatty alcohol carbon chain of 12-14 and a glycoside number of 1-3;
FMEE: the fatty acid methyl ester ethoxylate comprises a fatty acid with 16 carbon atoms and an average ethoxylation degree of 12-16 and a nonionic surfactant.
AEPO 1: the fatty alcohol EO/PO block polyether according to the invention is nonionic, the fatty alcohol being a C18 alcohol, the average number of EO additions being 6, the average number of PO additions being 2 and the HLB being about 8.5.
AEPO 2: the fatty alcohol EO/PO block polyether according to the invention is nonionic, the fatty alcohol being a C10 alcohol, the average number of EO additions being 8, the average number of PO additions being 0.5 and the HLB being about 13.0.
AEPO 3: the fatty alcohol EO/PO block polyether according to the invention is nonionic, the fatty alcohol is 12 alcohols, the average addition number of EO is 6, the average addition number of PO is 2 and the HLB is about 9.3.
AEPO 4: the fatty alcohol EO/PO block polyether is nonionic, the fatty alcohol is C8 alcohol, the average addition number of EO is 9, the average addition number of PO is 1.0, the HLB is about 13.5, and the structure does not conform to the fatty alcohol EO/PO block polyether nonionic described in the invention.
Examples 1 to 6
Examples 1 to 6 each provide a concentrated detergent composition, and the components contained in the concentrated detergent composition of each example are shown in table 1 below. The concentrated detergent compositions described in the examples were prepared by mixing and uniformly dispersing the components shown in table 1.
Comparative examples 1 to 3
Comparative examples 1 to 3 each provide a detergent, and the components contained in the detergents of comparative examples 1 to 3 are shown in table 2 below. The detergents of comparative examples 1 to 3 were prepared by mixing and uniformly dispersing the components shown in Table 1.
Comparative examples 1 to 3 are different technical solutions from the present invention, in which comparative example 1 is a detergent compounded by an unsaturated fatty acid soap and the EO/PO polyether block nonionic surfactant described in the present invention, comparative example 2 contains a saturated fatty acid soap but does not contain an EO/PO polyether block nonionic surfactant, and comparative example 3 is a detergent compounded by a saturated fatty acid soap and an EO/PO polyether block nonionic surfactant, but the EO/PO polyether block nonionic surfactant has a structure different from that described in the present invention.
TABLE 2 composition (wt.%) of detergents of comparative examples 1 to 3
The detergents of the above examples and comparative examples were subjected to a machine wash dynamic foam test and a low temperature solubility test, as well as to test the effect of sodium citrate on the process configuration.
1. Machine wash dynamic foam test
This experimental test is intended to demonstrate the advantages of embodiments of the present invention in foam control.
The experimental method comprises the following steps: the detergents of each example and comparative example were evaluated using the same model drum washing machine of the same brand, and the height of the suds (recorded when the washing machine stopped rotating) was recorded every 1 minute as a percentage of the total drum height. The test results are shown in table 3 below.
TABLE 3 machine wash foam evaluation
From the above evaluation results of the low foaming and easy bleaching experiments, it was confirmed that the detergents of examples 1 to 6 had excellent low foaming and easy bleaching properties, which were achieved by the synergistic effect of the saturated fatty acid soap with the fatty alcohol EO/PO block polyether nonionic surfactant of specific structure and other surfactants, comparative example 1 contained EO/PO block polyether nonionic surfactant but did not contain the saturated fatty acid soap, and thus the low foaming and easy bleaching properties were poor; comparative example 2 low foam, low bleachability was poor despite containing saturated fatty acid soap but not containing the EO/PO block polyether nonionic surfactant described in the present invention; comparative example 3 although containing a saturated fatty acid soap and an EO/PO block polyether nonionic surfactant, the structure of the EO/PO block polyether nonionic surfactant did not match that of the present invention, and the low foaming and easy-bleaching property was also poor.
2. Low temperature solubility test
High active detergents tend to form gels when dissolved at low temperatures, thereby affecting the use of the detergent. The detergents of examples 1 to 5 were tested for low temperature solubility. The test method comprises the following steps: a2 gram sample of the detergent was added to 200mL of tap water at 10 deg.C, the paddle was turned on, the speed was set at 300 rpm, and the time required for the detergent to dissolve was measured. The test results are shown in table 4 below.
Table 4 low temperature solubility test
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Dissolution time (seconds) | 30 | 100 | 25 | 33 | 32 |
From the low temperature solubility experiments, it can be seen that the inclusion of ethoxylated fatty acid methyl esters can significantly improve the solubility at low temperatures.
3. Effect of sodium citrate on Process configuration
The high-concentration detergent is easy to generate the gel phenomenon because the concentration of active matters is too high in the production process, and the gel phenomenon improvement of the sodium citrate is illustrated by observing the process of preparing the detergent. The test results are shown in table 5 below.
TABLE 5 observations of the behavior of the detergents of examples 1 to 5 during the preparation
| Examples | Example 1 | Examples 2 to 5 |
| Experimental phenomena | Gel appears during the preparation process | No gel phenomenon during preparation |
The technical contents of the present invention are further illustrated by the examples, so as to facilitate the understanding of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention.
Claims (8)
1. A concentrated detergent composition is characterized by comprising 0.5-5.0% by mass of fatty alcohol EO/PO block polyether nonionic surfactant, 2.0-6.0% by mass of saturated fatty acid soap, 1.0-10% by mass of ethoxylated fatty acid methyl ester nonionic surfactant and 1.0-4.0% by mass of sodium citrate;
the structural formula of the fatty alcohol EO/PO block polyether nonionic surfactant is as follows:
wherein n is 10-18, m is the average addition number of EO, and 5-8 are selected; z is the average addition number of PO, and is 0.5-3.0, CnH2n+1Is a straight chain alkyl or an alkyl containing a branched chain;
the structural formula of the ethoxylated fatty acid methyl ester nonionic surfactant is as follows:
wherein R is a linear alkyl or branched alkyl with a carbon chain of C10-C18, and n is 8-16.
2. A concentrated detergent composition according to claim 1, wherein said fatty alcohol EO/PO block polyether nonionic surfactant has an HLB value of 8 to 13.
3. A concentrated detergent composition according to claim 2, wherein said fatty alcohol EO/PO block polyether nonionic surfactant has an HLB value of 8 to 10.
4. A concentrated detergent composition according to claim 1, wherein said saturated fatty acid soap is at least one selected from fatty acid soaps having a carbon chain of C10-C18.
5. A concentrated detergent composition according to claim 1, further comprising 1.0-6.0% by weight of short-chain fatty alcohol, wherein the short-chain fatty alcohol is one or two selected from propylene glycol, ethanol and isopropanol.
6. A concentrated detergent composition according to claim 1, further comprising 10-25 wt% of other nonionic surfactant; the other nonionic surfactant is at least one selected from C12-C18 fatty alcohol polyoxyethylene ether, C12-C14 alkyl glycoside, C8-C20 branched alcohol polyoxyethylene ether, fatty acid alkylolamide, ethoxylated sorbitan ester and fatty acid alkoxylate.
7. A concentrated detergent composition according to claim 1, further comprising 10-25% by mass of an anionic surfactant; the anionic surfactant is at least one selected from C11-C18 alkylbenzene sulfonate and derivatives thereof, alpha-olefin sulfonate, C12-C18 alkyl alkoxy sulfate, C14-C18 fatty acid methyl ester sulfonate, alkyl disulfonic acid sodium or derivatives thereof, fatty acid alkyl ester sulfate and sulfosuccinate.
8. A concentrated detergent composition according to any of claims 1-7, characterized in that the mass percentage of active in the concentrated detergent composition is 40-60%; the active refers to the component of the concentrated detergent composition which belongs to the surfactant.
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| CN111893006B (en) * | 2020-07-15 | 2021-09-10 | 广州蓝月亮实业有限公司 | Detergent composition |
| CN113604294A (en) * | 2021-09-16 | 2021-11-05 | 廊坊佰美生物科技有限公司 | Commercial laundry detergent and preparation method thereof |
| CN114806753B (en) * | 2022-04-28 | 2023-07-18 | 华南师范大学 | a linen detergent |
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