CN105802757A - Method for enabling detergent composition to have small-range viscosity change in wide temperature range and detergent composition - Google Patents

Abstract

The present invention discloses a method for imparting a small range change in viscosity to a detergent composition over a wide temperature range and related detergent compositions using 2% to 20% of a special amphoteric surfactant, the zwitterionic surface The active agent meets the following conditions: 1) a mixture of two or three selected from amino acid-type amphoteric surfactants, betaine-type surfactants and imidazoline-type surfactants; 2) containing at least one amino acid-type amphoteric surfactant agent. The broad temperature range is from 0°C to 40°C, and the narrow range of viscosity changes refers to the viscosity range from 500mPa·s to 5500mPa·s. The detergent composition prepared by the above method is convenient to be extruded by a conventional push-type pump head, and can effectively prevent the pump head from being clogged due to the temperature drop in winter.

Description

Method for imparting a small change in viscosity to a detergent composition over a wide temperature range and detergent composition

technical field

The invention belongs to the technical field of daily chemical products, in particular to a detergent composition whose viscosity changes in a small range within a wide temperature range.

Background technique

The research on the application of amino acid surfactants began in the 1970s. They are mainly used in the antisepsis of medicines and cosmetics, and have good antiviral properties. In recent years, amino acid surfactants have attracted more and more attention from scientific research teams because of their excellent performance, and their application fields have been further expanded. Amino acid surfactants can be simply divided into two categories according to their structure: 1) they are composed of fatty α-amino acids connected to each other through amide bonds; 2) they are composed of natural α-amino acids and long fatty chains through α-amino, α-Carboxyl group or branched chain group connected together. At present, the latter is the main research and application at home and abroad. Among them, N-acyl, O-acyl, N-alkylamino compounds and their esters are widely used in the daily chemical industry because of their low toxicity and high biodegradability. Pay attention to.

In the daily chemical industry, detergents for different purposes usually have different viscosity requirements. For example, shower gel and hand sanitizer generally have relatively high viscosity. As for shedding right away. But generally speaking, the viscosity of the detergent will change widely with the temperature. When the temperature is relatively high, the viscosity of the detergent is too low to stick to the hands; when the temperature is relatively low, the viscosity of the detergent is too high and causes The nozzles are clogged, these shortcomings have seriously affected the experience of consumers.

When amino acid surfactants are used in liquid detergents, it is often difficult or even impossible to thicken. At present, major manufacturers mainly solve it by adding various polymer thickeners. Although polymer can solve the thickening problem, it will add other defects to the product, such as gelatinous appearance at low temperature; discoloration at high temperature; foaming properties of amino acid surfactants are suppressed; skin feeling is affected by polymer when cleaning. Influenced by sticky, unclean cleaning and strong residue; high polymer price occupies the formula cost space; cannot solve the problem of excessive fluctuation of detergent viscosity with temperature change. Throughout the published literature at home and abroad, there has not been a related detergent composition with a small change in viscosity in a wide temperature range.

Contents of the invention

In order to overcome the problem that the viscosity of the detergent fluctuates too much with the change of temperature, which affects the consumer experience (specifically, when the temperature is relatively high, the viscosity of the detergent is too low to stick to the hands; when the temperature is relatively low, the washing The viscosity of the agent is too high to cause nozzle clogging), the object of the present invention is to provide a method for giving detergent composition a small range of viscosity change in a wide temperature range and related compositions. The inventors surprisingly found that the viscosity of the detergent composition can change within a wide temperature range in a small range through the compounding of amphoteric surfactants.

The object of the present invention adopts following technical scheme to realize.

A kind of detergent composition that the present invention relates to changes viscosity in a small range within a wide temperature range, comprising the following material composition:

1) 2% to 20% zwitterionic surfactant;

2) 0.01% to 30% of other surfactants, said other surfactants being one or a mixture of anionic surfactants and nonionic surfactants;

3) 0.01% to 5.0% chelating agent;

4) 0.01% to 20% co-solvent;

5) 0.01% to 2.0% preservatives.

The detergent composition of the present invention has a viscosity within a wide temperature range with a small range change, and the wide temperature range is 0°C to 40°C; the viscosity with a small range change refers to a viscosity range of 500mPa·s to 5500mPa·s.

Detergent composition of the present invention, described zwitterionic surfactant satisfies the following conditions:

1) a mixture of two or three selected from amino acid type amphoteric surfactants, betaine type surfactants and imidazoline type surfactants;

2) Contain at least one amino acid type amphoteric surfactant.

The detergent composition of the present invention, the amino acid type amphoteric surfactant is selected from the mixture of one or more of the following compounds:

1) N-fatty acylalanine derivatives;

2) N-fatty acyl sarcosine derivatives;

3) N-fatty acyl glutamic acid derivatives;

The fatty acyl group is selected from the groups of the following structures: C _n H _2n+1 , n is a positive integer ranging from 8 to 22; the above-mentioned salts contain cations selected from sodium ions, potassium ions, ammonium ions, organic amines One or more mixtures of ammonium cations.

In the detergent composition of the present invention, the betaine-type surfactant is selected from any one of alkyl betaines, fatty amide betaines, fatty amidopropyl betaines, and fatty amidopropyl hydroxypropyl sulfobetaines One or a mixture of two or more; the imidazoline surfactant is selected from any one of alkyl sodium acetate imidazoline, fatty acid imidazoline, and sulfonic acid imidazoline or a mixture of two or more.

In the detergent composition of the present invention, the anionic surfactant is selected from the group consisting of: sodium fatty alcohol polyoxyethylene ether sulfate, sodium fatty alcohol polyoxyethylene ether carboxylate, sodium fatty alcohol sulfate, sodium alkylbenzenesulfonate, alkyl Any one of sodium sulfonate, sodium α-olefin sulfonate, sodium fatty acid methyl ester sulfonate, sodium sulfosuccinate, or a mixture of two or more.

The detergent composition of the present invention, the fatty alcohol polyoxyethylene ether sodium sulfate, wherein the fatty alcohol alkyl chain is preferably a straight-chain alkyl group with 12 to 16 carbon atoms; the average addition number of ethylene oxide of alcohol ether 1 to 3.

In the detergent composition of the present invention, the nonionic surfactant is selected from the group consisting of fatty alcohol polyoxyethylene ether, branched fatty alcohol polyoxyethylene ether, alkanolamide, alkyl glucoside, sucrose ester, polyglycerol fatty acid Any one or a mixture of two or more of esters and amine oxides.

In the detergent composition of the present invention, the cosolvent is selected from any one or a mixture of two or more in ethanol, propylene glycol, glycerol; the preservative is sodium benzoate, potassium sorbate, methylisothiazolinone , phenoxyethanol or a mixture of two or more.

The detergent composition of the present invention, said detergent composition, further comprises a mixture of one or more of light stabilizers, antioxidants, and essences.

The detergent composition of the present invention, said detergent composition, basically does not contain inorganic salts and polymer thickeners.

Detergent composition of the present invention has following advantage and beneficial effect:

1. Compared with the conventional detergent composition, the detergent composition of the present invention does not need to use inorganic salt or macromolecule thickening, and has the characteristics of green and natural.

2. The present invention is characterized in that it selects a suitable amphoteric surfactant compound, so that even if the detergent does not use inorganic salt or macromolecule thickening, it can also increase the viscosity of the system by adjusting the appropriate pH value, which is different from traditional detergents. Detergent thickening means. While saving the cost of the thickener, since the detergent composition adds a large amount of amino acid surfactant, it is almost non-toxic and harmless, very mild to human skin during use, and can effectively reduce other anions in the formula Surfactant has the characteristics of green and natural to the irritation and residue of hand skin.

3. In addition, the detergent composition has good viscosity stability at high temperature and low temperature, and its viscosity can be maintained at 500mPa·s to 5500mPa·s at 0°C to 40°C, which can greatly improve the viscosity of conventional liquid detergents in summer. Low, the disadvantage of high viscosity in winter.

Description of drawings

Fig. 1 is a viscosity-temperature curve (0° C. to 45° C.) of detergent in Example 1 of the present invention.

Fig. 2 is a viscosity-temperature curve (0°C to 45°C) of detergent in Example 3 of the present invention.

detailed description

In the present invention, zwitterions are preferably compounded to form worm-like micelles, and the prepared detergent composition product has good viscosity-temperature performance. The special surfactant and auxiliary agent combination contains at least one special amphoteric surfactant, through such a special surfactant combination and system pH adjustment, the surfactant micelles can easily change from lamellar micelles to worm-like glue Beam transformation, increasing viscosity.

The features, beneficial effects and advantages of the present invention will become apparent to those skilled in the art by reading the contents disclosed in this specification.

All percentages, fractions and ratios are calculated by weight of the total composition of the present invention, unless otherwise specified. All weights as they pertain to listed ingredients are given at the active level 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 can be represented by the symbol "%".

All formulation and testing herein took place at a 25°C environment unless otherwise specified.

Herein "comprises", "comprising", "comprising", "containing", "having" or other variations thereof are intended to cover non-closed inclusions and no distinction is made between these terms. The term "comprising" means that other steps and ingredients can be added which do not affect the end result. The term "comprising" also includes the terms "consisting of" and "consisting essentially of". The compositions and methods/processes of the present invention may comprise, consist of and consist essentially of the essential elements and limitations described herein and any additional or optional ingredients, components, steps or limitations described herein .

"Substantially free," "not added," or other variations herein are intended to cover non-closed exclusions, and no distinction is made between these terms. The term "substantially free" means that there is no artificial addition or that the added amount of a certain substance is less than 0.1%.

detergent composition

Liquid detergent compositions according to the invention comprise fabric detergent compositions or dishwashing detergent compositions, in particular selected from the group consisting of: liquid fabric detergent compositions, liquid manual dishwashing detergent compositions, liquid automatic dishwashing agent composition.

The detergent composition of the present invention can remove the stains on the surface of the substrate by contacting the substrate to be contacted (ie fabric products and tableware) in water, so as to achieve the purpose of cleaning the surface of the substrate.

Said fabric detergent compositions and dishwashing compositions generally also contain a surfactant system and other common detergency builders such as viscosity modifiers, enzyme preparations, fragrances and the like.

viscosity

When a liquid is flowing, the property of internal friction between its molecules is called the viscosity of the liquid, and the size of the viscosity is expressed by viscosity. Viscosity is a measure of the viscosity of a fluid, which is an expression of the fluid's flow force and its internal friction phenomenon. The greater the viscosity, the greater the internal friction, the greater the molecular weight, the more the carbon-hydrogen combination, and the greater the force.

Viscosity is usually divided into: dynamic viscosity, kinematic viscosity, conditional viscosity. Dynamic viscosity refers to the force required to produce a unit flow rate using a unit area of a liquid layer per unit distance. In the International System of Units, the unit of dynamic viscosity is Pa·s, and dynamic viscosity represents the internal friction coefficient of liquid viscosity; kinematic viscosity is the ratio of the dynamic viscosity of the fluid to the density ρ of the fluid at the same temperature. Conditional viscosity: Refers to the viscosity expressed in conditional units measured by different specific viscometers. Generally, the viscosity of liquid detergent is characterized by dynamic viscosity, and a rotational viscometer is usually used to measure the viscosity of liquid detergent.

The viscosity mentioned in the present invention is a dynamic viscosity, and a rotational viscometer is used to test the viscosity of the composition at different temperatures to obtain a specific viscosity value.

Viscosity-temperature curve and viscosity change rate

The viscosity change rate of the liquid detergent has a great influence on the performance of the liquid detergent, especially the performance at low temperature. The smaller the viscosity change rate of the liquid detergent, the better the detergency, decontamination efficiency and foaming performance at low temperature. In a microscopic sense, viscosity is a manifestation of molecular thermal motion. As the temperature rises, the thermal motion of molecules in the liquid intensifies, the average speed of molecular motion increases, the contact time with adjacent molecules becomes shorter, and the force between liquid molecules decreases, so the viscosity decreases; as the temperature decreases, the thermal motion of molecules in the liquid Weakening, the average speed of molecular motion decreases, the contact time with adjacent molecules becomes longer, the force between liquid molecules becomes larger, so the viscosity decreases; the degree of viscosity change with temperature is also related to many factors, such as the chemical composition of the substance, viscosity Fluid activation energy, viscosity, etc.

The viscosity-temperature curve mentioned in the present invention mainly refers to the rate of change of viscosity with temperature, and mainly discusses the influence of different chemical compositions on the rate of change of viscosity. The viscosity change mentioned in the present invention is small in a wide range of temperature changes. It means that when the temperature changes from 0°C to 40°C, the viscosity of the composition ranges from 500mPa·s to 5500mPa·s;

Inorganic salt

The salt described in the present invention is an electrolyte with a relative molecular mass less than 1000. The anion group of the salt is selected from one or a combination of sulfate ions, chloride ions, nitrate ions, citrate ions, hydroxide ions, oxalate ions, sulfite ions, chlorate ions and hypochlorite ions The group; the cationic group of the salt comprises one or a group consisting of lithium ions, sodium ions, potassium ions, rubidium ions, calcium ions, magnesium ions, ammonium ions, preferably sodium chloride, potassium chloride, sulfuric acid Any one or a mixture of two or more of sodium, ammonium chloride, calcium chloride, magnesium chloride and sodium citrate.

polymer thickener

The polymer thickener of the present invention refers specifically to water-soluble polymer thickening materials, such as starch, gelatin, sodium alginate, guar gum, chitin, gum arabic, xanthan gum, soybean protein glue, polyacrylamide , polyvinyl alcohol, polyvinylpyrrolidone, modified paraffin resin, carbo resin, styrene-butadiene rubber, etc.

pH range

The pH value is an expression method that embodies the acidity and alkalinity of a certain solution or material. The pH value of the detergent combination of the present invention directly affects its properties. The pH range described herein refers to that the detergent composition of the present invention can maintain a small change in viscosity within a wide range of temperature ranges. Characteristic pH range, the detergent composition has a pH range of 4.0 to 8.0, preferably a pH range of 4.0 to 6.5.

Surfactant system

The surfactant system of the detergent composition involved in the present invention includes, but is not limited to: anionic surfactant, nonionic surfactant, cationic surfactant, zwitterionic surfactant and a mixture thereof . A preferred surfactant system comprises a mixture of anionic and nonionic surfactants.

zwitterionic surfactant

The content of the zwitterionic surfactant is 2% to 20% of the mixture, calculated by the total weight of the mixture.

Zwitterionic surfactants are selected from betaine-type surfactants, imidazoline-type surfactants, amino acid-type surfactants, and amine oxide-type surfactants; including but not limited to: alkyl betaines, fatty amide betaines, Fatty amidopropyl betaine, fatty amidopropyl hydroxypropyl sulfobetaine, including alkyl sodium acetate imidazolines, fatty acid imidazolines, sulfonic acid imidazolines; aminopropionic acid derivatives, glycine derivatives; alkanes Dimethyl amine oxide, fatty amidopropyl dimethyl amine oxide, etc.

anionic surfactant

The content of the anionic surfactant is 0.01% to 30% of the mixture, calculated by the total weight of the mixture.

Anionic surfactants are selected from sulfonate surfactants, carboxylate surfactants, and one or more mixtures of sulfate surfactants; preferably from alkylbenzenesulfonates, C8 to C18 Alkyl sulfates, C8 to C18 ethoxylated fatty alcohol sulfates, alpha-olefin sulfonates, fatty acid alkyl ester sulfonates, one of ethoxylated fatty alcohol ether carboxylates, and their mixture.

In some embodiments, the mixture of anionic surfactants preferably contains alkylbenzene sulfonates and derivatives thereof. Described alkylbenzene sulfonate satisfies the following general formula:

Wherein R1 is an alkyl group with a carbon number of 6 to 24, and M ⁺ is a cation. R1 may be a straight-chain alkyl group or a branched-chain alkyl group; it may be a saturated alkyl group or an alkyl group containing one or more unsaturated double bonds. More preferably, R1 is a linear alkyl group having 8 to 18 carbon atoms. In some embodiments, the mixture of anionic surfactants contains ethoxylated fatty alcohol sulfates. Ethoxylated fatty alcohol sulfates are derivatives of ethoxylated fatty alcohols with the following general formula:

Wherein R1 is an alkyl group with a carbon number of 6 to 24; x is 0.5 to 30; wherein M ⁺ is a cation. R1 may be a straight-chain alkyl group or a branched-chain alkyl group; it may be a saturated alkyl group or an alkyl group containing one or more unsaturated double bonds. R1 is preferably a linear alkyl group having 8 to 18 carbon atoms. x represents the average degree of ethoxylation and is 0.5 to 30, preferably 0.5 to 10, more preferably 0.5 to 3.

In some embodiments, alpha-olefin sulfonates are included, having the general formula:

Wherein a is 0 to 2, R1 is an alkyl group with 6 to 24 carbons, preferably R1 is an alkyl group with 8 to 18 carbons. The anionic surfactant may also include one or more mixtures of sodium alkyl disulfonate or derivatives thereof, preferably sodium alkyl diphenyl ether disulfonate, a suitable example is dodecyl diphenyl ether disulfonate acid sodium salt. It can also contain fatty acid alkyl ester sulfate, preferably fatty acid methyl ester sulfate (MES), and the carbon number of fatty acid is preferably 8 to 18. It may also contain sulfosuccinate, preferably fatty alcohol polyoxyethylene ether sulfosuccinic acid monoester disodium salt, the carbon number of the fatty alcohol is preferably 8 to 18, and the average degree of ethoxylation is preferably 2.0.

nonionic surfactant

The content of the nonionic surfactant is 0.01% to 30% of the mixture, calculated by the total weight of the mixture.

The nonionic surfactant is selected from fatty alcohol alkoxylates, alkyl polyglycosides, fatty acid alkoxylates, fatty acid ethoxylates, fatty acid alkyl alcohol amides, and ethoxylated sorbitan esters or a mixture of the above.

In some embodiments, the nonionic surfactant mixture preferably contains a fatty alcohol alkoxylate having the general formula:

The fatty alcohol alkoxylate is a product of ring-opening polymerization of fatty alcohol and alkylene oxide under the action of a basic catalyst, and is basically a mixture. Fatty alcohols include straight chain alcohols or branched isomeric alcohols. Alkoxy groups include ethoxy groups and propoxy groups. Fatty alcohol is preferably a fatty alcohol with a carbon number of 8 to 18. Preferred alcohols include but are not limited to hexanol, octanyl decyl alcohol, 2-ethylhexanol, 3-propylheptanol, lauryl alcohol, isotridecyl alcohol , tridecyl alcohol, myristyl alcohol, cetyl alcohol, palm oil alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, linoleyl alcohol, linoleyl alcohol and a mixture thereof. The average degree of ethoxylation x is preferably from 2 to 12. Suitable examples are SHELL's NEODOL series of linear fatty alcohol ethoxylate products, DOW's ECOSURF.EH series of ethoxylated and propoxylated 2-ethylhexanol products.

In some embodiments, the nonionic surfactant mixture preferably contains an alkyl polyglycoside, having the following general formula:

Wherein, n is 6-24, p is 1.1-3, preferably n is 8-16. Suitable alkyl polyglycosides include the Glucopon series of alkyl glycoside products from BASF.

The nonionic surfactant mixture may contain fatty acid alkoxylates, preferably from ethoxylated C8 to C18 fatty acid esters with an average degree of ethoxylation of 2 to 10. It may contain ethoxylated sorbitan alkyl esters having an alkyl carbon number of 6 to 18 and an average degree of ethoxylation of 4 to 20; suitable examples are the Corda Tween range of products.

The nonionic surfactant mixture can contain fatty acid alkanolamide, the carbon number of fatty acid is 6 to 24, it can be straight chain fatty acid or branched chain fatty acid, it can be saturated fatty acid or unsaturated fatty acid Fatty acids; 0-2 number of alkyl alcohols. Preferred are monoethanolamides, diethanolamides, isopropanolamides having fatty acid carbon numbers of 8 to 18, a suitable example being coconut oleic acid diethanolamide.

Nonionic surfactant blends may contain fatty acid methyl ester ethoxylates with the general formula:

Wherein, n is 6 to 24; x is 2 to 20, preferably n is 8 to 18, and x is 0.5 to 30. Preferably x is from 4 to 10. A suitable example is the MEE product of the company LION. The nonionic surfactant mixture may contain polyether surfactants. The polyether surfactant is a polymer, a nonionic surfactant containing ethylene oxide and/or propylene oxide repeating units, and a suitable example is the Pluronic series products of BASF Company.

optional ingredients

The detergent composition of the present invention comprises the following optional additives: one or more of alkaline agent, preservative, coloring agent, color stabilizer and essence.

The detergent composition of the present invention may contain one or more alkaline agents selected from sodium hydroxide, potassium hydroxide, alkali metal carbonates, and alkali metal silicates.

In some embodiments, the detergent compositions according to the present invention preferably contain preservatives, suitable examples are phenoxy alcohol, sodium benzoate; isothiazolinone and its derivatives such as methylisothiazolinone, methyl chloride Isothiazolinone, a type of benzisothiazolinone or a mixture thereof. The amount of preservative is 0.001% to 5%, preferably 0.01% to 2%.

In some embodiments, the present invention relates to detergent compositions containing a colorant comprising a dye and a pigment. Colorants include all colorants used in washing products, suitable examples being Acid Scarlet G, Basic Fuchsin, Acid Golden G, Acid Bright Yellow G, Basic Egg Yolk, Direct Fast Blue B2RL, Indigo etc.

In some embodiments, the present invention relates to detergent compositions comprising a color stabilizer. Color stabilizers include all color stabilizers that can be used in washing products.

The detergent composition according to the present invention preferably contains perfume, which includes all perfume ingredients suitable for washing products. The spices used in the present invention can be natural sources, chemically synthesized products, or a mixture of the two. Suitable examples are lemon, rose, jasmine, lavender, citrus, green, woody, etc.

In addition to the above optional ingredients, the detergent composition of the present invention may also include: water, organic solvents, co-solvents, solubilizers, structuring agents, foam boosters, foam suppressors, fabric softeners, anti-wrinkle agents, etc. and conventional additives. These additives and related usage methods are well known to those skilled in the art, and their specific types and dosages can be adjusted according to actual needs.

Preparation and use

The detergent compositions of the present invention are prepared by various methods well known to those skilled in the art. The preparation of the composition can be carried out by conventional means, specifically, the appropriate processing temperature and processing time should be selected according to the state and function of the components in the solution, and the stability of the components.

The use method of the detergent composition of the present invention is well known to those skilled in the art, and the typical use method is to mix the specific detergent composition embodiment in the mode of undiluted or diluted in water, and the object to be washed Surface contact, then rinse the surface of the item being washed. Preferably, the article to be washed is subjected to a washing step between the above-mentioned contacting step and rinsing step. Washing steps include, but are not limited to, scrubbing and mechanical agitation. Items to be washed include linen and dishes. The concentration of the detergent composition in water is from about 500 ppm to about 10000 ppm, and the water temperature is preferably from 5°C to about 60°C. The ratio of water to items to be washed is preferably from about 1:1 to about 20:1.

Without further elaboration, it is believed that one skilled in the art, using the preceding description, can utilize the present invention to its fullest extent. The following examples are intended to further describe and demonstrate specific embodiments within the scope of the present invention. Therefore, the examples should be understood only to illustrate the present invention in more detail, but not to limit the content of the present invention in any way.

In the following examples, unless otherwise specified, all contents are percentage by weight, and the contents of the listed ingredients are converted active substances.

The detergent composition of the present invention whose viscosity changes in a small range within a wide temperature range may also be referred to as a self-thickening detergent composition for short.

The present invention will be described in further detail below through specific preferred embodiments combined with the content of effect test examples, but the present invention is not limited to the following examples.

Example 1

A self-thickening detergent composition, comprising the raw material components and content of the following table 1:

The formula composition of the self-thickening detergent composition of table 1 embodiment 1

According to the formula content in Table 1, first put in deionized water and fatty alcohol polyoxyethylene ether sodium sulfate, stir and dissolve and put in other surfactants, adjust the pH to 7.0 to 7.5, put in chelating agents, preservatives and other auxiliary agents, and then Adjust the pH to 5.8 to 6.4. Qualified products are allowed to stand until there is basically no foam, and then they can be filled into finished detergent compositions.

Example 2

A self-thickening detergent composition, comprising the raw material components and content of the following table 2:

The formula composition of the self-thickening detergent composition of table 2 embodiment 2

Raw material components role weight percentage (%) Potassium myristoyl glutamate Surfactant 7.0 Cocamidopropyl Betaphylline Surfactant 12.0 Sodium Fatty Alcohol Polyoxyethylene Ether Sulfate Surfactant 7.0 Sodium olefin sulfonate Surfactant 2.0 Fatty Alcohol Polyoxyethylene Ether-9 Surfactant 1.0 glycerin solvent 2.0 Disodium edetate Chelating agent 0.1 sodium benzoate preservative 0.2 Methylisothiazolinone preservative 0.04 Deionized water solvent Balance (add up to 100%)

According to the formula content in Table 2, first drop in deionized water and fatty alcohol polyoxyethylene ether sodium sulfate, stir and dissolve and put in other surfactants, adjust the pH to 7.0 to 7.5, put in chelating agents, preservatives and other auxiliary agents, and then Adjust the pH to 5.4 to 6.1. Qualified products are allowed to stand until there is basically no foam, and then they can be filled into finished detergent compositions.

Example 3

A self-thickening detergent composition, comprising the raw material components and content of the following table 3:

The formula composition of the self-thickening detergent composition of table 3 embodiment 3

According to the formula content in Table 3, first drop in deionized water and fatty alcohol polyoxyethylene ether sodium sulfate, add other surfactants after stirring and dissolving, adjust the pH to 7.0 to 7.5, drop in chelating agent, preservative and other auxiliary agents, and then Adjust the pH to 5.5 to 6.2. Qualified products are allowed to stand until there is basically no foam, and then they can be filled into finished detergent compositions.

Example 4

A self-thickening detergent composition, comprising the raw material components and content of the following table 4:

The formula composition of the self-thickening detergent composition of table 4 embodiment 4

Raw material components role weight percentage (%) Sodium Lauroyl Sarcosinate Surfactant 1.5 Cocamidopropyl Betaphylline Surfactant 3.0 Sodium Fatty Alcohol Polyoxyethylene Ether Sulfate Surfactant 2.5 Sodium olefin sulfonate Surfactant 0.1 Fatty Alcohol Polyoxyethylene Ether-9 Surfactant 0.1 glycerin solvent 2.0 Disodium edetate Chelating agent 0.1 sodium benzoate preservative 0.2 Methylisothiazolinone preservative 0.04 Deionized water solvent Balance (add up to 100%)

According to the formula content in Table 4, first drop in deionized water and fatty alcohol polyoxyethylene ether sodium sulfate, stir and dissolve and put in other surfactants, adjust the pH to 7.0 to 7.5, put in chelating agents, preservatives and other auxiliary agents, and then Adjust the pH to 4.5 to 5.2. Qualified products are allowed to stand until there is basically no foam, and then they can be filled into finished detergent compositions.

Effect application test example

1. Appearance observation test

The detergent compositions of the present invention are clear transparent solutions which may be slightly yellowish depending on the particular surfactant raw material used. The following table shows the appearance observation results of the inventive detergent composition stored at different temperatures for one month. Table 5 List of appearance observation results

It can be seen from the above table 5 that the four examples can all remain stable at a temperature change from 0°C to 45°C, and among them, Example 1, Example 3 and Example 4 can remain stable even at -5°C, so The detergent product remains stable even under some extreme weather conditions in summer and winter for easy storage.

2. Detergent composition viscosity-temperature curve test method

The viscosity-temperature curves of the detergent compositions prepared in Examples 1 and 3 of the present invention are shown in Figures 1 and 2. Wherein, the rheological test temperature is 0°C to 40°C, and the shear force is 1s ^-1 . It can be seen from Figure 1 that the viscosity of composition 1 is 2200mPa·s at 0°C, and 500mPa·s at 40°C, the maximum value of its viscosity-temperature curve is 5500mPa·s, and its temperature is 12°C .

Similarly, it can be seen from Figure 2 that the viscosity of composition 3 ranges from 400 mPa·s to 3300 mPa·s. As can be clearly seen from the above results, the detergent composition of the present invention differs from general liquid detergents in that it has a small change in viscosity within the range of 0°C to 40°C, and can significantly improve the viscosity of detergents caused by excessively low temperatures in winter. The high temperature cannot be pumped out by the nozzle, and the detergent does not have the disadvantage of viscosity due to the high temperature in summer.

The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form, so any simple modification made to the above embodiments according to the technical essence of the present invention does not depart from the content of the technical solution of the present invention. , equivalent changes and modifications all still belong to the scope of the technical solution of the present invention.

Claims (12)

1. one kind gives composition of detergent method of the little range of viscosity in temperature range widely, it is characterised in that comprise 2% to 20% zwitterionic surfactant；Described zwitterionic surfactant meets the following conditions:

1) selected from amino acid type amphoteric surface active agent, the mixture of the two or three of betaine type amphoteric surfactant and Imidazoline Surfactants；

2) a kind of amino acid type amphoteric surface active agent is at least contained.

2. method according to claim 1, it is characterised in that: temperature range refers to 0 DEG C to 40 DEG C widely；The little range of viscosity refers to that range of viscosities is 500mPa s to 5500mPa s.

3. method according to claim 1, it is characterised in that: the described amino acid type amphoteric surface active agent one or more mixture in N-fatty acyl group alanine salt, N-fatty acyl sarcosinates, N-fatty acyl group glutamate, Glu；

Fatty acyl group is selected from the group of following structure: C_nH_2n+1, n is the positive integer of 8 to 22；Above-mentioned salt comprises cation, described cation selected from sodium ion, potassium ion, ammonium radical ion, organic amine ammonium root one or more mixture cationic.

4. method according to claim 1, it is characterised in that: described betaine type amphoteric surfactant is selected from any one in alkyl betaine, fatty acid amide glycine betaine, fattyamidopropyl betaine, fatty amide propyl hydroxypropyl sulfonated betaine or two or more mixture；Described Imidazoline Surfactants is selected from any one in acetate alkyl sodium form imidazoline, fatty acid type imidazoline, sulfonic acid type imidazoline or two or more mixture.

5. the composition of detergent of the little range of viscosity in temperature range widely, it is characterised in that comprise:

1) zwitterionic surfactant of 2% to 20%；

2) other surfactants of 0.01% to 30%, other surfactants described are the mixture of at least one or two in anion surfactant, nonionic surfactant；

3) 0.01% to 5.0% chelating agen；

4) 0.01% to 20% cosolvent；

5) 0.01% to 2.0% preservative.

6. composition of detergent according to claim 5, it is characterised in that: described wide temperature range is 0 DEG C to 40 DEG C；The little range of viscosity refers to that range of viscosities is 500mPa s to 5500mPa s.

7. composition of detergent according to claim 5, it is characterised in that: described zwitterionic surfactant meets the following conditions:

1) selected from amino acid type amphoteric surface active agent, two or more mixture of betaine type amphoteric surfactant and Imidazoline Surfactants；

2) a kind of amino acid type amphoteric surface active agent is at least contained.

8. composition of detergent according to claim 7, it is characterised in that: the described amino acid type amphoteric surface active agent mixture of any one or more in N-fatty acyl group alanine derivatives, N-fatty acyl group sarcosine derivative and N-fatty acyl group glutamate derivatives；

Fatty acyl group is selected from the group of following structure: C_nH_2n+1, n is the positive integer of 8 to 22；

Above-mentioned salt comprises cation, described cation selected from sodium ion, potassium ion, ammonium radical ion, organic amine ammonium root one or more mixture cationic.

9. composition of detergent according to claim 7, it is characterised in that: described betaine type amphoteric surfactant is selected from any one in alkyl betaine, fatty acid amide glycine betaine, fattyamidopropyl betaine, fatty amide propyl hydroxypropyl sulfonated betaine or two or more mixture；Described Imidazoline Surfactants is selected from any one in acetate alkyl sodium form imidazoline, fatty acid type imidazoline, sulfonic acid type imidazoline or two or more mixture.

10. composition of detergent according to claim 5, it is characterised in that: the described anion surfactant mixture of any one or more in polyoxyethylenated alcohol sodium sulfate, fatty alcohol-polyoxyethylene ether carboxylic acid sodium, sodium alkyl sulfate, sodium alkyl benzene sulfonate, sodium alkyl sulfonate, α-sodium olefin sulfonate, methyl sodiosul foaliphatate, 2-Sulfosuccinic acid ester sodium salt；Fatty alcohol alkyl chain is preferably the straight chained alkyl of 12 to 16 carbon atoms；The average adduct number of oxirane of alcohol ether is 1 to 3；

Described nonionic surfactant any one or two or more mixture in fatty alcohol-polyoxyethylene ether, collateralization fatty alcohol-polyoxyethylene ether, alkanolamide, alkyl-glucoside, sucrose ester, polyglyceryl fatty acid ester, the amine oxide.

11. composition of detergent according to claim 5, it is characterised in that: described cosolvent is the mixture of any one or more in ethanol, propylene glycol, glycerol；Described preservative is any one or two or more mixture in sodium benzoate, potassium sorbate, Methylisothiazolinone, phenoxyethanol.

12. composition of detergent according to claim 5, it is characterised in that: it further comprises one or more the mixture in light stabilizer, antioxidant, essence；And said composition is substantially free of inorganic salt and macromolecule thickener.