JPH02212600A - Detergent composition containing betaine and ether sulfate - Google Patents

Abstract

PURPOSE: To obtain a detergent compsn. suitable for hand washing of tableware having excellent relaxation properties and foaming characteristics by compounding a binary active system consisting of a plurality of specific surfactants, a hydrotrop and, according to circumstances, an electrolyte.

CONSTITUTION: An aq. liquid detergent is obtained by compounding a binary active system (A) consisting of a betaiane surfactant (a) selected from an alkylamide betaine represented by formula I (wherein R is a 9-17 alkyl or alkenyl, (x) is 2-4 and (y) and (z) are each 0-3), an alkylamide sulfobetaine represented by formula II (wherein R¹ is a 1-3C alkylene, X is H, CH₃ or OH, Y is H or CH₃, R² and R³ are CH₃, C₂H₅ or hydroxyethyl, R⁴ is a 2-6C alkylene and R⁵ is a 10-18C alkyl) and a mixture of them and one of alkyl ether sulfate surfactants (b) represented by formulae III, IV [wherein R is an 8-18C alkyl, (x) is alkali metal ions, alkaline earth metal ions, ammonium ions or (1-3C alkyl or alkanol substituted) ammonium ions and (q) is 1-3] or a mixture of them and characterized by that a wt. ratio (a):(b) is 1:4 to 1:1, 1-12 wt.% of hydrotrop (b), 0-12 wt.% of an electrolyte (C) and water (D).

COPYRIGHT: (C)1990,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION Two particularly important properties of hand dishwashing detergent solutions are mildness (which is important due to the exposure of the hands to the detergent formulation) and sudsing power. Foaming power is important because the amount of suds produced during cleaning is related to the formulation's ability to effectively clean dishes and utensils.

Surfactants included in some light-duty liquid detergent formulations to promote mildness include certain betaine surfactants and direct stabilizing ethers! Examples include acid salts. However, such formulations contain, in addition to betaine and ether sulfate, high levels of total surfactants, high levels of high-value betaine surfactants, and/or one or more additional surfactants. generally tended to contain.

Rubin et al., in U.S. Pat. No. 4,375,421, describe alkylamide betaines and, for example, salts, carbonates, citrates, tartrates, and succinic acid! High viscosity aqueous compositions containing a salt selected from salts are disclosed.

The inclusion of micelle-forming anionic surfactants is stated to have a synergistic, viscosity-generating effect.

The numerous types of anionic materials for use in their invention include sodium, potassium, calcium, magnesium and ammonium alcohol ethoxy sulfates.

Examples 6-8 and 6-C include cocoamidobetaine, ammonium alcohol ethoxy sulfate.

Hand dishwashing formulations containing lauryl dimethylamine oxide and either sodium citrate or sodium sulfate are disclosed. The ratio of betaine to ether sulfate is much greater than 1;
have shown that certain types of betaines are important, and furthermore that most betaines are not concentrated in the presence of salt. Only alkylamidobetaines are stated to be concentrated under the reported conditions.

Chirash et al., in U.S. Pat. No. 4,772,425, include as preferred optional ingredients at least one sulfated or sulfonated anionic surfactant, betaine, a clay stabilizer, and a small amount of ethanol. A light duty liquid abrasive-containing dishwashing composition containing a solubilizer is disclosed. Preferably, the formulation comprises a ternary surfactant system of alkylbenzylsulfonate or alkanesulfonate, alkyletheneoxysulfonate I! l salt and betaine.

Contains clay and 2-9% alcohol.

Some compositions cited in the Examples by Chirash, 2007 include ether 1liI field and betaine surfactants, and ethanol. For example, a composition containing 17% sodium dodecylbenzene sulfonate, 13% ammonium alkyltrietheneoxyether sulfate, 4% cocoamidobu Ovir dimethyl betaine, 5.5% ethanol and water is disclosed. In Example 6,
Contains 6.5% ether sulfur salt, 2% amidoalkyl betaine, 8.5% sodium dodecylbenzenesulfonate and 4% alcohol. The examples containing ether sulfate and betaine appear to have a ternary surfactant system.

Verdicchio et al., U.S. Patent No. 3,950.4
No. 17@ discloses a high foaming detergent composition particularly useful as a shampoo, including the surfactant betaine, an anionic surfactant and a nonionic surfactant.

The preferred molar ratio of surfactant betaine to anionic surfactant is about 0.9 to about 1.1. Preferred betaines are stated to be the surfactants amidocarboxybetaine and amidosulfobetaine. Alcohol ether sulfate is used as the anionic material and is described as being the preferred anionic material. Examples are -
In addition to anionic surfactants such as betaine and ether sulfur, it contains nonionic surfactants.

In addition to their use as shampoos, the compositions are described as being useful as cleaning agents for cleaning other parts of the human body, animals, inanimate objects, etc.

Hishigiura et al., U.S. Patent No. 4,166.0
No. 48 discloses a high-foaming detergent composition that is described as being very gentle on the skin. The composition includes:
Certain polyoxyethylene alkyl ether sulfate mixtures and betaine-type amphoteric surfactants of the formula R'(R2)N'' (CHCOO-)R3, where R1 is alkyl having 8 to 20 carbon atoms, are used. Contains.The key to betaine type amphoteric surfactants is polyoxyethylene alkyl ether sulfur I
! 0.01 to 2 times the Im of the salt mixture, especially 0.03 to 0
．． It is 5 times more.

The ether sulfates of the '048 patent may contain 11i1i metal ions, preferably Na or K, or 21i1i metal ions, preferably Ca or MQ.

It may also contain solubilizing agents such as ethanol, propylene glycol, glycerin and xylene sulfonate. In some examples, the compositions are tested for their cleaning power on tableware. Some examples include raw ammonium chloride.

the Lonzaine CPr0dtlCt In
formationBIJIletin is LOnZa
Ine C is a mild, high foaming surfactant with an amidobetaine structure. tonz
aine C is described as containing 5% Nacl. Lonzaine c is described as having significant conditioning, foaming and viscosity enhancing properties.

LOnZaine C is described to enhance viscosity when used with most anionic surfactants, making formulations ranging from viscous liquids to ringinQ gels.

30% solution of LOnZaine c < 14%), B
arlox C,a sodium olefin sulfonate (
A shampoo formulation containing a 40% solution of 22%), citric acid, water and optionally the polymer J R125 is disclosed.

Lonzaine C is described as being useful in light duty liquids and is further described as exhibiting high levels of builders, electrolytes, alkalis and acid tolerance.

Auhosol C^ (cocoamidopropyl betaine)
ni 1111 the 5tepan bulleti
n indicates a shampoo formulation containing Amphosol C8, amine oxide, alpha olefin sulfonate, citric acid and water. In the other three formulations, the anionic materials are a sodium lauryl tall salt, another alcohol sulfate salt, and an alpha olefin sulfone salt, respectively. By adding NaCl, a wide range of viscosities (O~
It is stated that a gel) can be obtained.

Pancheri et al., U.S. Patent No. 4.772.423
@ discloses a liquid detergent described as having high foaming properties and suitable for cleaning table utensils.

The detergent contains 5 to 50% anionic surfactant, polymeric surfactant, detergency builder, and water, and may further contain other surfactants, among which betaine surfactant highly preferred.

Betaine is present at 0.5-15%, preferably 1-10%. The ratio of anionic substances to betaine is about 1 to 80,
Preferably it is 1-40, more preferably about 2-40. Preferred anionic surfactants are alkylboethoxylate 5A acid salts having 0.5 to 10 ethylene oxide groups. The anionic material may be a salt of sodium, potassium, ammonium, monoethanolammonium, jetanolammonium, triethanolammonium and other cations. alcohol,
and hydrotropes such as sodium xylene sulfonate, as well as water-soluble inorganic builders. The alkyl ether sulfate and the alkyl amide betaine are - together, in various embodiments -
Contained within the shell along with another surfactant.

Laa+b et al., in U.S. Pat. No. 4,671,894,
4-20% alkyl sulfate, 5-20% alkylbenzene sulfonate, 1-10% nonionic surfactant, 5-20%
May contain 24% alkyl ethoxy sulfate, 0.25-10% amphoteric surfactant such as alkyl betaine, alkylamide betaine or sulfobetaine, and ethanol, urea and/or lower alkylbenzene sulfonate. Hydrodrobe-Discloses a liquid dishwashing detergent that includes a water system.

In the example, 9.9% alkyl ethoxy! ii! Ti
Contains ammonium III, 2,25% amidobropylbequin, ethanol, alkylbenzene sulfonate, alkyl titts salt, and water. In Comparative Example M, the alkylbenzene sulfonate was omitted,
It is stated that a significant reduction in suds m1leaae is obtained.

K++sh et al., in U.S. Pat. No. 4,554,098,
8-30% alkyl ether 1iIII salt, supplementary material,
Non-soap anionic detergent, which may be betaine
Contains 8% zwitterionic surfactant, amidobetaine or sulfobetaine, and a solubilizer selected from alcohol, lower alkylbenzene sulfonate, urea and mixtures thereof, good foaming properties with skin inflammation reducing properties. Discloses a liquid detergent.

The formulation is said to be suitable as a hand dishwashing liquid.

Example 5 of 1kisch contains 16% ammonium alkyl ether li[salt, 6% sodium alkyl ether sulfur 11MA, 4% amidobetaine, 3% monoethanolamide, 5.4% sodium xylene sulfonate and 9.5% ethanol. including. Example 35 is 13%
Ammonium alkyl ether sulfate, 2% ammonium lauryl 1Affij! , 4,5% amidobetaine,
Contains 1.5% monoethanolamide, 9.2% ethanol and 4.2% sodium xylene sulfonate.

B15sett et al., in U.S. Patent No. 4,558,360,
~99% mild foaming ionic surfactant, surfactant 1-30 which may be betaine or amidobetaine
%, and 0.5-20% amine oxide suds promoter. The ratio of anionic detergent to betaine is between 1:1 and 20:1, preferably 3
:1 to 10:1. It may contain detergency builders, solvents such as ethanol and water, and hydrotropes such as sodium xylene sulfonate. In Example 1, there is 27% alkyl ether sulfate, 5% amine oxide and 10% cetyl dimethyl betaine.

Carter et al., in U.S. Pat. No. 4,088,612, described certain sulfobetaines and anionic surfactants as
Versus 2? Disclosed are compositions containing a molar ratio of llS or higher. Among the anionic substances mentioned are ether sulfates. Table 1 shows a formulation containing hexadecylpyridinosulfobetaine and sodium lauryl ethylene oxide (BEG) ether sulfate in a 1:1 molar ratio. Compositions containing sulfobetaine and ether l11m salt are also shown in Table 2. It may also contain hydrotropes such as alkali metal arylsulfonates, organic solvents such as lower alcohols, and salts such as sodium sulfate.

European Patent Application No. 036.625 discloses liquid cleaning compositions described as useful for hand dishwashing. The composition comprises 4 to 20 liters of a mixture of sulfated ethylene oxide/alkanol adducts and 2 to 20 liters of a mixture of sulfated ethylene oxide/alkanol adducts and one or more anionic tensides.
5% surfactant betaine, optionally non-ionic tt3nsi
Contains des, solvent and other ingredients. Example 4 is believed to include 9% alkylbenzene sulfonate, 9% alkyl ether sulfate sulfate, 2% alkylamide brobyl dimethyl methyl betaine, and 10% ethanol. Example 6 appears to contain 10% alkylbenzene sulfonate, 10% alkyl sulfonate, 5% alkyl ether sulfate, 5% amidobetaine, and 8% isopropanol. Example 9 appears to contain 5% alkyl ether l1iI111 salt, 2% betaine, 3% alkyl sulfate, 5% nonionic material, and 4% isopropanol.

Light-duty liquid detergent formulations in which the ratio of amide and/or amide sulfobetaine surfactant to linear ether sulfate is within the ranges specified below do not require the addition of another surfactant or contain excess betaine. It has now been found that they exhibit excellent mildness and foaming properties, or without the need for total surfactants.

1. The present invention consists essentially of: a) a betaine surfactant, which may be an alkyl amide betaine or an amide sulfobetaine, or a mixture thereof, and ii) an alkyl ether sulfate M salt surfactant. , a substantially dual active system in which the weight ratio of i) to ii) ranges from 1:4 to 1:1; b)
c) aqueous light duty liquid detergent formulations particularly suitable for hand dishwashing, containing 1-12% hydrotropes, c) 0-12% electrolytes. Preferably 1
) versus ii) is in the range 1:3 to 1:1, more preferably even 1:2 to 1:1.5.

The light duty liquid detergent of the present invention has been found to have excellent mildness and foaming properties and is particularly suitable for use as a hand dishwashing liquid. Furthermore, the liquids of the present invention do not require large amounts of betaine or total surfactants, and use a substantially dual active system, thus eliminating the need to add further surfactants.

The betaine surfactants useful in the present invention are zwitterionic surfactants, and are alkylamidobetaines or alkylamidosulfobetaines.

The alkylamidobetaines useful in the present invention have the following formula: %Formula %() (wherein R is an alkyl chain or alkenyl chain having 9 to 17 carbon atoms, X is an integer from 2 to 4, and y is 0 -3, and 2 is an integer of 0-3.

A preferred value for X is 3. Preferred values for y and 2 are both 0. R is preferably an aliphatic group having 11 to 13 carbon atoms, most preferably linear. A preferred source of R groups is coconut oil. Preferred amidobetaines may be represented by the following formula: %Formula %( ) (wherein R is an alkyl group or alkenyl group having 9 to 13 carbon atoms).

Examples of alkylamide betaines useful in the present invention include cocoamidomethylbetaine, laurylamidepropylbetaine, and cetylamidemethylbetaine.

Alkylamide betaines useful in the present invention include, for example, Lo
Lonza Incor is a registered trademark of nzaine C.
porated from; Hiranol Chemical Compa with registered trademark of Hirataine CB
From NY; ＾a+phosot CA registered trademark 5t
It is commercially available from Qpan Chemical Go.

, the alkylamidosulfobetaines useful in the present invention have the following formula: (wherein R1 is an alkylene group having 1 to about 3 carbon atoms;
X is hydrogen, methyl or hydroxy, Y is hydrogen or methyl, R2 and R3 are independently selected from methyl, ethyl and hydroxyethyl groups, and R4 is an alkylene group having from about 2 to about 6 carbon atoms. , R5 has about 10 or more carbon atoms
about 18 alkyl groups).

A typical amidosulfobetaine surfactant is cocoamidomethylsulfopropylbetaine.

Mention may be made of stearylamide dimethylsulfopropyl betaine and laurylamide bis-(2-hydroxyethyl)-sulfobylbetaine.

In preferred sulfobetaine surfactants, R2 and R are methyl. R1 is preferably ethylene. R
4 is preferably an alkylene group having 2 to 4 carbon atoms.

R5 is preferably direct. Convenient sources of C10-18 alkyl groups are tallow alcohol and coconut fatty alcohol. Particularly preferred amidosulfobetaines are hydroxysultaines, such as cocoamidopropylhydroxysultaine, which has the formula: CH
30H, where RCO is coconut am.

Cocoamidopropyl hydroxysultaine is Lonz
aine C3 and LOnZaine JS to
It is sold by NZA TNC and Hirano 1 as Hirataine CBS.

Betaine surfactants will generally be present in the compositions of the present invention at levels ranging from 2 to 13% by weight, preferably from 3 to 9% by weight.

A substantially dually active system is meant to include no more than about 1% of a surfactant other than an ether sulfate salt, or amidobetaine or amidosulfobetaine.

The alkyl ether 1111M salt surfactant used in the present formulation has the formula: %Formula % where R is an alkyl group having about 8 to about 18 carbon atoms or a human O-oxyalkyl group, n is 2 or 3, q can vary from 1 to about 30. Preferred are ether sulfates in which R is C12 to C15. Preferably, q is in the range 1 to 3, especially 3. n is preferably 2. , preferably selected from the group consisting of alkali gold (especially sodium and potassium) ions, alkaline earth metal (e.g. calcium and magnesium) ions, ammonium or substituted ammonium ions, such as hepanosies or triethanolammonium cations. A mixture of cations may be used; ammonium ions are particularly preferred.

The alkyl ether sulfate will generally be present in the compositions of the invention at a level of 6-22%, preferably 6-20%, especially 10-18%.

R is a mixture of 012-C75 alcohols, X is ammonium, and the alcohol is an ether 1111M
salts and ethers ethoxylated with 31:0 groups
Neodol 25-3A (Shel
1) may be used as a source of ether sulfate. Other sources of alkyl ether W4R salts suitable for use in the compositions of the invention include ammonium alkyl ether sulfates where R is a mixture of 012 and 013 alcohols, and the alcohol is ethoxylated with a 3EO group. Pareth23-3 (S
(manufactured by HELLI).

The weight percent of total surfactants in the formulations of the invention is preferably not higher than 30%, more preferably not higher than 25%, especially up to 21%.

Preferably, the surfactant constitutes at least 16% of the composition.

The hydrotrope used in the suimei am is preferably selected among alkanols and lower alkyl (C1-C3) benzenesulfonates, and mixtures thereof. C1-C6 alkanols, especially ethyl alcohol, and mixtures thereof can be used as solvents. Isopropanol is another suitable alcohol. Preferred lower alkylbenzene sulfonates include sodium, potassium xylene, toluene, and cumene sulfonate.

There are also mixtures thereof. A particularly preferred hydrotrope system for alkylamidobetaines includes a mixture of ethyl alcohol and sodium xylene sulfonate. The preferred hydrotrope for alkylamidosulfobetaines is ethanol.

Hydrotropes total from 1 to 12% by weight of the formulation.
It can be. For sodium xylene sulfonate and other lower alkylbenzenesulfonate hydrotropes, the preferred range is 0.5 to 3.5% by weight, preferably 1.5 to 3.5% by weight. The preferred range for ethanol is 1-10%, especially 3-8%.

Optional ingredients that may be present in the light duty liquid detergent compositions of the present invention include neutral salts. Particularly preferred neutral salts include alkali metal tinates, especially li
! II! ! Mention may be made of sodium and alkali metal chlorides, especially sodium chloride. The neutral salt is 0 in this composition.
-12%, preferably 0.5-12%. Sodium chloride is preferably present in the range 0.25-2% by weight, while sodium sulfate is
It will be present at 5%, particularly from 0.25 to 5%. The composition may contain both sodium chloride and sodium sulfate. Other examples of neutral salts that may be included in the compositions of the invention include sodium, potassium.

Sulfates, chlorides, bromides of ammonium, zinc, monoethanolammonium, jetanolammonium, and triethanolammonium.

Mention may be made of iodides, fornates, oretates, citrates, succinates and tartrates.

The compositions of the present invention are formulated to have a viscosity of 150 to 3500 cps. If a low viscosity liquid is desired, the viscosity is 1
It ranges from 50 CpS to 1000 C1)S, preferably 300-400 cps. The viscosity of the high viscosity liquid is preferably in the range of 1000 to 2500 cps, more preferably about 2500 cps. The present invention produces clear, stable, high viscosity liquids in the range of 1000-2500 cps.

Such highly viscous formulations can be used for direct-use cleaning by applying the liquid directly to the utensils or utensils (e.g., squirting or pouring them onto the utensils or sponges) instead of diluting the liquid with cleaning water. It can be used beneficially. Generally, the viscosity of the composition is controlled by varying the levels of neutral salts and hydrotropes.

Water constitutes 40-80% by weight of the composition in the shell, preferably 49-17% by weight.

The compositions of the present invention contain colorants such as D&C Yellow #10 and FD&C Green #10 and various other ingredients typically found in light duty detergents including dyes, fragrances, and preservatives. Good too.

The pH of the composition will be within the range of 6 to 7.5, preferably about 1.

The compositions of the present invention are stable and transparent within the shell, but they may also be transparent and τ if desired.

The light duty liquid detergents of the present invention - do not contain polymeric surfactants, cationic polymers, clays or abrasives within the shell, although the inclusion of such ingredients may be inappropriate under certain circumstances. Sometimes there are. Furthermore, the detergent of the present invention
Contains no alkanolamide or amine oxide surfactants.

While the light duty liquid detergent composition of the present invention is primarily used as a hand dishwashing detergent, its use is not limited thereto. For example, it may be appropriate to use the formulations as shampoos, bubble bath compositions, liquid soaps, and the like.

The composition of the present invention may be prepared in the following manner. Pour the required amount of alkylneedleillate active solution into a mixing vessel equipped with an overhead stirrer. Using a mixer running at high speed, slowly add any sodium xylene sulfonate solution. Once the solution is homogeneous, gradually add water to the center of the vortex to minimize gelation.

If an electrolyte is required in the formulation, it should be dissolved in water beforehand.

Once all the water has been added, continue stirring until no gel particles are visible. The betaine solution is then added with stirring, followed by any color or aroma. The entire process is carried out at room temperature.

Unless otherwise indicated, all percentages given in Water II are by weight.

Example 1” (-yu) According to the above steps, the following dishwashing liquid was prepared by vA.

Cocoamidopropyl betaine Ethanol Sodium chloride The product was clear and stable.

An occluded batch test was conducted to evaluate the formulations for mildness ability. As a standard, Ipoly liquid dish detergent (Iv
ory Liquid [lishwasbingdc
tergent) was used. In the closed batch test, a 2% solution of the formulation was applied to the forearm using a plastic disc.

The disc was left in place for 24 hours, then
After disc removal, the skin is evaluated 24 hours a day. The lower the score, the less inflammatory the formulation is. The following formulations were tested.

BCDE of sodium lauryl sulfate component 13.5 Cocoamidopropyl betaine Cocoamidopropyl hydroxysultaine ethanol Sodium chloride xylene sodium sulfate water 7.5 1.3 1.5 75.2 3.4 1.25 1.5 72゜85 4.75 1.0 1.5 67.75 3.75 1.67 68.08 69.40 4.75 0.85 Formulation A (for comparison) Eye poly liquid irritation 1.233 0.6 0. 6 0.633 0.6 0.7 No significant difference is observed between formulations B, C, D and E of the present invention and Ipoly solution.

A transparent tygon tube with an inner diameter of 31 mm was hung over 6 feet of tubing. The tube was filled with tap water at 40° C. with a lid on its end. A 75-pitch aliquot of light duty fluid was poured onto the water surface using a positive displacement pipette. LDL
I tracked Koman with my eyes, and the drops were like, “YaI!” I recorded the points that were no longer noticed. Three tests were performed for each LDL. Fresh 40°C tap water was used for each formulation. The longer the distance recorded, the poorer the dispersibility.

The viscosity was measured with a Brookfield viscometer using a 3-meter spindle. This example shows a preferred embodiment of a high viscosity LES/betaine mixture with the same dispersibility as the commercial product. Higher viscosities are beneficial for direct use cleaning. Formulations 1, 2, and 5 are preferred as they contain sufficient hydrotropes to disperse LDL in this test.

Dispersion of L[)L within 40 inches is particularly preferred in this test, and more preferably within 35 inches.

A piston plunger is used to examine the relative ability of LDLs to prevent foam depletion in the presence of food soil. In the test, foam is generated and food soil is added in 10% increments. Continue the stirring/feeding cycle until the foam is exhausted. Next, the weight of the added dirt is measured, and L D +-
Used as a relative measure of potency.

Surplus! Cr1sco
Food Soil Containing Shortening BGU Food Soil Containing Spaghetti Sauce Cleaning Example The performance of the following formulations was investigated using the piston plunger method with Ragu spaghetti sauce. Experiments were conducted at 40°C.

Roasted - 1111 1 12 7 N T: Nium C12-C15 full D-le 3EOU) f
Im4FJ) 13.5X 19.3X Cocoamidopropyl betaine 7.5
10.7% ethanol
3.40% 4.9% Sodium Chloride
1.25%
1.8% Sodium xylene sulfonate
0.5 0.7% water
73.85% 62.
9$-jJL Nine-Test 1 2 435g Commercial Dishwashing Liquid I 363g Commercial Dishwashing Liquid II 4229 Mouse Test 13 428 iiF 3569 5339 405g 463g371g The results of Formulation 1 (total active substances 21%) are as follows: Better than cleaning solution ■. Formulation 2 (II active substance 30%
) is better than commercially available dishwashing liquid ■. Commercial cleaning solutions I and 1 both contain more than 30% total active material.

An evaluation was performed on a piston plunger using Ragu spaghetti sauce stain. Experiments were performed at 40°C.

With a ratio of 41ES/1 betaine and a total component of 21%,
The same results as commercially available dishwashing liquid I were obtained.

With a small LES/betaine ratio (less than 2:1) and a total active ingredient content of 121%, superior performance was obtained compared to commercial dishwashing liquids.

Cleaning Results ■ Comparison of formulation with 24% generalizing component and Eyepoly liquid (33-34% generalizing component). A piston plunger test at 40° C. using Cr1sco shortening stain was used.

Cleaning ■ Dishwashing test was used to evaluate the examples from "Cleaning Results ■".

1. Prepare a dirty plate by applying 5dS crtsco shortening stain on 8 plates with a spatula. Then stack them. Meanwhile, heat a suitable amount of water with hardness below 115°C. Add 1 gallon of warm water to the tub along with the volume of L D L. Foam is then generated using an Htxetee electric hand mixer on high speed for 20 seconds.

Then proceed with washing the dishes using a standard wash cloth and wash register. The operator submerges the dish in water and cleans the front side in six circular motions. Turn the dish over and wash the back side three times in a circular motion. The dish is then removed from the cleaning solution and placed at 45°.
At an angle of 3 seconds, touch the tip to the edge of the tub (to remove bubbles) and stack. The process continues until another observer determines that half of the water surface is no longer covered with bubbles. The number of dishes washed is then counted and used as a relative measure of performance.

U-Amount” Self-Yo [Δ1 Eyepoly liquid 34 Piston/plunger test and dishwashing test are both 2
It has been demonstrated that the preferred embodiment at a 4% totality level performs the same as the main product containing 34% totality.

Kamio Unilever Namrose ・Bennote Sharp

Claims (1)

[Claims] (1) a) (i) A) Formula: ▲ Numerical formula, chemical formula, table, etc. ▼ (In the formula, R is an alkyl chain or alkenyl chain containing 9 to 17 carbon atoms, x is an integer of 2 to 4, y is an integer of 0 to 3, and z is an integer of 0 to 3), and b) Formula: ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, R^1 is an alkylene group having from 1 to about 3 carbon atoms, X is hydrogen, methyl, or hydroxy, Y is hydrogen or methyl, R^2 and R^3 are each independently methyl, selected from ethyl, and hydroxyethyl groups, R^4 is an alkylene group having about 2 to about 6 carbon atoms, and R^5 is an alkyl group having about 10 to about 18 carbon atoms. a betaine surfactant selected from the alkylamide sulfobetaines and mixtures thereof: (ii) of the formula: RO(C_nH_2_nO)_q-SO_3X or RO
(C_nH_(_2_n_+_1_)O)_q-SO_
3X (wherein R is a higher alkyl group having 8 to 18 carbon atoms, and X is substituted with an alkali metal ion, alkaline earth metal ion, ammonium ion, and 1 to 3 lower alkyl groups or alkanol groups) ammonium ion, q is 1 to 3) or a mixture thereof, wherein the weight ratio of (i) to (ii) is in the range of 1:4 to 1:1. an essentially dual active system, b)
An aqueous liquid detergent comprising: 1 to 12% by weight of a hydrotrope, c) 0 to 12% by weight of an electrolyte, and d) water. (2) The composition according to claim 1, wherein the alkyl ether sulfate is an ammonium salt. (3) A composition according to claim 1 or 2, wherein the hydrotrope is selected from ethanol, isopropanol, C_1 and C_3 aromatic sulfonates and urea. (4) The composition according to any one of claims 1 to 3, wherein the alkyl ether sulfate is a linear alkyl ether sulfate. (5) The weight ratio of (i) to (ii) is about 1:3 to about 1:1
．． 5. The composition according to any one of claims 1 to 4. (6) A composition according to any one of claims 1 to 5, wherein the betaine surfactant is present in an amount of 2 to 13% by weight. (7) A composition according to any one of claims 1 to 6, wherein the alkyl ether sulfate is present in an amount of 6 to 22% by weight. (B) Claims 1 to 3 comprising 30% or less total surfactant.
7. The composition according to any one of 7. (9) The electrolyte is selected from neutral salts from the group of sodium chloride, sodium sulfate and mixtures thereof.
8. The composition according to any one of 8. (10) A method for producing a composition according to any one of claims 1 to 9, comprising mixing together the surfactant, the hydrotrope, and a suitable amount of water.