JPS61145298A - Concentrated single phase enriched detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to concentrated aqueous fortified liquid detergent compositions suitable for wash ml or pre-soak formulations. More specifically, the present invention relates to an aqueous enhanced liquid shaving composition provided as a homogeneous, clear, single-phase solution with a high concentration of human blood activator and Pilgoo.

Prior Art: The formulation of concentrated fortified aqueous detergent compositions has been a commercial objective in the detergent field for the last few years. Such compositions have excellent cleaning power at low formulation concentrations in the bath, contain water as the primary solvent, and are in the form of homogeneous single-phase solutions with long storage life without phase separation. This is generally required.

Conventional liquid detergent compositions containing detergency enhancement builders are generally not highly concentrated. That is, conventional liquid detergent compositions are formulated as relatively rare aqueous solutions so that the builders and surfactants in the liquid composition can be dissolved.

In order to provide the desired cleansing power, it is necessary that such a concentration in the bath be relatively highly linear.

As used herein, the term "concentrated" refers to a standard color concentrate at a formulation concentration equivalent to approximately 1-cup under U.S. conditions, i.e., approximately 0.1% liquid detergent composition under U.S. conditions. The present invention relates to a liquid detergent composition capable of providing effective cleaning power in a top load washer (approximately 17 US gallons) at about 60 mg of detergent composition per load.

Commercially acceptable levels of cleaning power at such low formulation concentrations! In order to obtain r, it is necessary to make up a high proportion of the active ingredients in the detergent composition, especially surfactants and builders. Therefore, "concentration" as used here
The term liquid detergent is defined as a detergent composition containing about 65% by weight less than 1 unit of water.

As a practical matter, it is important to use water as the primary, if not the sole, solvent in such concentrated liquid detergent compositions and to avoid the use of expensive solvents such as glycols. Accordingly, the liquid detergent compositions described herein contain at least about 35% water by weight based on the liquid composition, but about 4% water by weight, based on the liquid composition.
A water content of 5 to 60% by weight is usually preferred.

Fortified liquid detergent compositions are known in the prior art.

However, such detergent compositions mostly contain a high content of water above 65%, often as much as 93% by weight, due to the limited solubility of builders and surfactants in water. Generally produced as relatively dilute aqueous compositions. Alkylene glycol cosolvents are often used to increase the solubility of fortified detergent compositions. In such liquid compositions containing less than 65% water, the proportion of builder is kept relatively low, ie, below about 10% by weight, in order to increase the solubility of the fortified detergent in water. In order to provide acceptable cleaning power when used under standard American wash conditions, such known liquid compositions have been formulated to provide the "1/4 cup" concentration (1/4 cup) at which the liquid detergent compositions of the present invention are effective. It is commonly used at formulation concentrations substantially higher than about 0.01% by weight). Furthermore, typical detergent compositions do not form clear, homogeneous solutions that are stable against phase separation, but are generally in the form of VC emulsions or suspensions.

? U.S. Patent No. 3.91.2662 to Borcbert et al. and US Pat. No. 4.021.3.77 to Borcbert et al. The detergent compositions described are well representative of the prior art.

The Martin et al. patent discloses an aqueous detergent composition containing a non-ionic detergent, a betaine detergent, and a botanic acid salt builder; The Portchart et al. patent discloses a phosphate-free liquid detergent containing a citrate builder and a blood activator in a water-glycol solvent. Table 1
The water content of each of the 7 products shown in Table 1 is less than 26% by weight, and the majority of the solvent is alkylene glycol. Therefore, the ability to provide an economical liquid detergent composition containing water as the primary solvent and in the form of a clear, concentrated, single-phase solution is critical to the ability to formulate a commercially acceptable fortified concentrated liquid detergent composition. This is still a problem that needs to be overcome.

Solution to the problem: The present invention comprises: (a) a water-soluble non-phosphate deficient builder salt of about 15 to 1
8% by weight tb+ ethylene oxide 5-9 moles and carbon number] 2-
from about 15 to 23% by weight of a surface-active nonionic detergent composition that is the condensation product of 15 with 1 mole of an aliphatic alcohol (cJ(t)) a betaine detergent compound having the following structural formula: and (11) The following structural formula: % Formula % [In the formula, R is a mixture of alkyl and argyl having 9 to 13 carbon atoms, R2 and R3 are methyl or ethyl, regardless of each other, and R4 and R'' are methylene, ethylene, or ethyl, independently of each other. at least one amphoteric detergent compound selected from the group consisting of alkylamyl'betaine detergent compounds having a progylene radical;
Approximately 1 to 6% by weight (d)++l Nonyl Kohata 1 anhydride and (11)
A concentrated single phase homogeneous fortified aqueous detergent composition is provided comprising: about 5 to 8 weight percent of a solubilizer selected from the group consisting of alkali metal salts of nonylmaleic anhydride; and fe) about 35 to 65 weight percent water.

According to the method of the invention, the destruction of stained and/or soiled materials is carried out by contacting such materials with an aqueous solution of a liquid detergent composition as defined above.

The compositions of the present invention, unlike fortified liquid detergent compositions known in the prior art, contain high concentrations of builders and surfactants, yet are physically stable over long periods of storage and over a wide range of temperatures. , is a characteristically clear, single-phase homogeneous solution. In accordance with the present invention, certain combinations of non-ionic detergents and betaine detergents containing non-phosphate builder salts and solubilizers are transparent monomers containing high concentrations of both the activator and the builder. unexpectedly forms an aqueous solution. From a commercial standpoint,
Consistent with many local government regulations that prohibit the use of phosphate-containing detergents, detergents containing phosphates utilize water as the primary solvent and reduce the use of expensive solvents such as alkylene glycols. It is relatively economical to formulate as it avoids use in large quantities; low formulation concentrations in the wash bath, especially desirable under US wash conditions, are the so-called “17
The advantage of the present invention is that it is a homogeneous solution that provides an effective cleaning solution at a 4-cup concentration; The composition is particularly advantageous.

The non-ionic detergent compounds in the liquid detergent compositions mentioned above will age about 15-23%, preferably 17-19% by weight of the detergent composition, and the amphoteric detergent compounds will generally make up about 1% by weight of such compositions. ~6% by weight, preferably 2-4% by weight. The relative amounts of each of the above detergents will generally be determined by the amount of builder salt used. Builder concentration is 15~
The higher in the 18% by weight range, the lower is the maximum concentration of nonionic detergent that can be used in the composition to form a stable single phase solution. On the contrary, when the builder is at a high concentration, the concentration of the amphoteric detergent and solubilizer is within the above concentration range to completely solubilize the mixture and form a clear single-phase solution with the required cleaning power. It is desirable to increase the Therefore, for example, if the builder concentration is about 17% or more, J/
? - is a preferred nonionic surfactant concentration of about 16 to
18%, the concentration of the amphoteric detergent is about 2-4%, particularly preferably at least 3%, and the concentration of the solubilizer is about 7-4%.
Part 8 (all percentages are based on the weight of the entire composition).

The synthetic nonionic detergents used in the practice of the invention are specifically limited to those compounds which are condensation products of 5 to 9 moles of ethylene oxide and 1 mole of aliphatic alcohols having 12 to 15 carbon atoms. The aliphatic alcohol is preferably a straight-chain alcohol, particularly preferably having an average of 12 to 12 carbon atoms per mole.
J3 aliphatic alcohol or a mixture of aliphatic alcohols. The average number of ethylene oxide groups per mole of alcohol is preferably about 65 or 7. Particularly preferred for use herein are Neod, ol 23-65 and NeodO 1 25-7. Both such formulations are manufactured by Shell Chemical Company, Inc.
l Chem], ca, I Company, Inc.
) products.

The most common amphoteric detergent compounds for use in the compositions of the present invention are betaine and alkyl amyl-betaine detergent compounds having the following structural formulas: (1) betaine R''-CI(2- N'-COO-; and (11) Alkylamide betaine OR2 R' -C-NH-R5-N+ R'-COO-" [In each of the above structural formulas, R' is an alkyl chain size having 9 to 13 carbon atoms or all alkyl mixtures, 1, 2 and K are methyl or ethyl, regardless of each other, and 1, 4 and 5 are methylene, ethylene or propylene radicals, independently of each other. In the case of mixtures of alkyls of various chain lengths, it is preferred that such mixtures consist primarily of argyls having 9 to 13 carbon atoms, but (
Even if only the main alkyl in the compound has 9 to 13 carbon atoms, and the remaining alkyl chains are outside this range, it is sufficient, although not particularly desirable. Preferably, R1 is derived from coconut oil.

R, R and R are preferably methyl groups, and R is suitably a propylene radical. Therefore, preferred betaines for use in the present invention are cocococymethylammonium acetate (cocobetaine) and cocoamidopropyldimethylammonium acetate (cocoamidebetaine).

Anionic detergents can optionally be used in small amounts to supplement the nonionic and amphoteric detergent compounds in the liquid detergent compositions of the present invention. Generally, anionic detergents are present at about 3% or less by weight of the total composition to limit the solubility of such detergents in the fortified liquid topical. The solubility of alkylbenzenesulfones in which the alkyl group has 10 to 18 carbon atoms in the composition of the present invention is particularly limited.
Preferably, the composition of the invention is completely free of such compounds to avoid the possibility of the formulation separating.

Preferred anionic detergents for use in the present invention have the general formula: % formula % [wherein R is an aliphatic alkyl having 10 to 18 carbon atoms or 20 carbon atoms; The number of carbon fiber threads v15 to 1/2 of R is 1 inch),
1u11 is an alkali metal, ammonium, lower alkyl-amino, ζ is lower alkanolamino'fX
, nIT-solubilized salt-forming 1-odor ion] is a sulfuric acid-oxylated higher aliphatic alcohol. A preferred borietoginyl alcohol Zalpha-1.i base material is available from 7L Chemical Company and is
It is sold as eod-ol-25-3S.

The primary bath medium of this concentrated liquid detergent composition is water. The water content can vary from about; 35 to 65%, but from 45 to 65%.
Contents in the range of 60 tons are generally preferred. Co-solvents, such as algylene glycols such as ethylene glycol or ethylene glycol, can optionally be used in low amounts to increase the solubility of the surfactant and builder in the bath liquid. If alkylene glycols are present in the detergent composition, their concentration should be no more than about 10%, preferably no more than about 5%, by weight of the total composition, provided that the composition contains substantially no such alkylene glycols. It is best not to include it.

One or more alkali metal salts of nonylsuccinic anhydride or nonylmaleic anhydride are included in the detergent compositions because of their solubilizing properties with respect to nonionic surfactants and builder salts. Such a solubilizing agent accounts for 5 to 8 of the total composition.
Although weight is hereditary, a degree of at least 7% is preferred when the builder salt concentration is greater than about 17%.

Nonylsuccinic anhydride is represented by the following formula: [wherein C9 represents an aliphatic chain having 9 carbon atoms, preferably argyl]. Nonylmaleic anhydride is similarly defined, and the structures of succinic anhydride and maleic anhydride differ only in that maleic acid is unsaturated.

Non-phosphate detergent builder salts are generally about 15-18% by weight.
of Vζ is used in the compositions of the invention.

Specific examples of non-phosphate water-soluble inorganic builders include water-soluble inorganic carbonates, bicarbonates, and silicates. Charcoal of alkali metals (e.g. sodium and potassium)
Salts, bicarbonates and silicates are particularly useful in the invention.

Water-soluble organic builders are also useful, and water-bathable organic builders include alkali metal, ammonium, and substituted ammonium salts of 11-acetic, carboxylic, polycarboxylic, and polyhydroxysulfonic acids. Specific examples of polyacetic acid and polycarboxylate builders include ethylenediaminetetraacetic acid, nitrilotriacetic acid, ≧zene7β-carboxylic acids (i.e., ink carboxylic acids and tetracarboxylic acids), carboxymethoxysuccinic acid, and citric acid. There are sodium, potassium, lithium, ammonium and substituted ammonium salts. As used herein, the term "builder" excludes surfactants such as water-soluble salts of higher fatty acids having about 8 to 20 carbon atoms and soaps.

Optical fluorescent brighteners or bleaches used in liquid detergent compositions are a modern technology that impart a glossy appearance to washed objects and materials, making them look not only clean but also beautiful. It is an important component of detergent compositions. Although a single brightener can be used for the purpose specifically intended for the non-inventive liquid detergent composition, it is generally a brightener for cotton, nylon, polyester and blends of such materials. It is desirable to use brightener mixtures that have a good brightening effect and are bleach stable. A good description of these types of optical brighteners is A.

A, E, Siegrist
The paper “Requirements for Fluorescent Bleach for Modern Detergents” by
Requi, rements of Present D
a, y Detergent F]. uorescen
tWhitenj,ny Agenl;s)
il Chemists Soc, January 1978 (vol. 55). This document and U.S. Pat. No. 3,81,2041 (issued May 21, 1974), which are related to this invention by way of reference, describe in detail a wide range of suitable optical brighteners.

Brighteners useful in the liquid detergent compositions of the invention include: Ca1coflnor 5 BM (American Sheanami 1); Tj, nopal LPw ("
); SOF' A-2001 (shiba); CDW (
PhorwitePK
H, l? horwjte BBH and l'h, orwi
t6 BHC (Vueosu); C8L, powder, acidic (American cyanamide); F'g776 (Vuelona);
Blancopbor (GAF'); UNPA (Geigi); Tin0pa, I RBS 200 (Geigi).

Auxiliary agents can also be used to add functional or aesthetic properties to liquid detergent compositions. Useful auxiliaries include:
Soils such as polyvinyl alcohol #, sodium carboxymethylcellulose, hydroxydifurovir methylcellulose (A-agents or restain repellents; thickeners such as gums, alginates, bases; e.g. laurin) - Foam improvers such as myristicin jetanolamide:
Antifoam agents such as silicones: e.g. tribromo
Dyes; pigments (dispersible in water); preservatives; ultraviolet absorbers; fabric softeners; opacifiers, such as polystyrene suspensions; and fragrances. Of course, such materials will be selected on the basis of desirable properties in the product, compatibility with other ingredients, and bath solubility into liquid compositions.

The inventive liquid detergent composition is efficient and easy to use. Compared to heavy-duty powder detergents, a very small amount of the inventive liquid detergent can be used to make soiled debris comparable. For example, when using a typical preferred formulation of the invention, the amount of water is about 71 g or 1/2 g for one tankful stream in a top-load automatic atomizer having a water volume of about 17 gallons. 4 cars
Only a small amount of liquid detergent is required; less is sufficient for high load conditions. Therefore, the degree of liquid detergent composition in water is on the order of about 0.1 part. The proportion of the liquid detergent composition in the solution is usually in the range of about 0.05-0.3%, preferably tL<0.1.
．． It is in the range of 0-020%. The proportions of the various components in the liquid detergent composition may vary accordingly. It's thinner than this f! Although the same results can be obtained using the entire formulation, the larger quantity required requires additional packaging and is generally not a feed for consumer use.

Example J In accordance with the invention, a concentrated fortified liquid detergent composition was prepared as follows. The section below pertains to 100% oil-based ingredients.

Sothorium citrate 172 Cocoamide Betaino (],) 3.
1 Nonyl succinic anhydride 2) 70 (Kariuno, 1 Spirit) Brightener and dye f'lO2 Water Balance (1) 1■ar10nCADG
Cocoamide Betaine, an aqueous solution sold by Re-Mical Company.

(2) This anhydride was provided as "Hoe 2817j" sold by American Hoechst Company. It then reacted with potassium hydroxide to form a total potassium salt.

The liquid detergent composition described above is a clear, blue, single-phase, homogeneous liquid detergent having a viscosity of about 80 cp at 75° C. and flows satisfactorily from a plastic detergent bottle with an approximately 2.5 cm outlet. It is something to do.

This liquid detergent was used to withstand mixed loads of soiled spores, including cotton test fabrics and polyester/cotton test fabrics soiled with powder soils and sebum soils. The temperature at the temperature was below 120°C and the concentration of liquid detergent at the temperature was about 0.1% by weight. After washing, the washed items were rinsed in tap water and then dried. Ga, rd, ner XL-
By reading the reflectance of each soiled test cloth before and after using a 20 colorimeter, the degree of soil removal 'k 1l11!
I decided.

The above washing process was carried out using a commercially available product containing 19% todecylbenzenesulfonate, 10% sodium citrate, 7% ethyfluorinated alcohol surfactant, and 5% sodium chloride toluenesulfonate. The water-based fortified liquid retardant was used as a control detergent at a 11/2 cup concentration of about 0-2% by weight in a sinter bath and repeated. The detergency of both sets of acids was compared based on the measure of soil removal achieved during washing;
The 17c/'4+ power at a 1/4 cup concentration is equal to or - the cleaning power achieved by the control liquid detergent at a 1/2 cup a degree for cleaning soiled and stained fabrics. It became clear to me that it was even better.

Example 2 Effect of total binding of non-inventive betaine detergents in a fortified liquid detergent composition containing a non-ionic surfactant and a high concentration of builder. ” except that stearyl betaine was substituted for the acid and valmidil betaine was substituted for the second composition.
This was demonstrated by preparing two types of liquid detergent compositions as described in Example 1. Both of the resulting compositions were unstable and formed discrete grains, in contrast to the stable, clear solution that was characteristic of the composition of Example 1.

A detergency test was conducted using the prepared compositions A, B, and C as shown below. The numerical values in the table represent the weight of each component in the liquid composition.

Sodium citrate 17.2
1.7.2], 7.2 Ethoxylation 012-CI3
17,6 22.0 7.0 moles of alcohol (1; U 6.5 mo/l//'Fluco-) Cocoamide Betaine 3■
... 90 amyl nonylsuccinate
7.0 14.0 ... (potassium salt) water
All of the 3 compositions were clear, single phase solutions. Composition A is the composition of the present invention as already described in Example 1, and Composition B contains the same ingredients as Composition A except for the fish meat, which has been completely removed from the betaine detergent, and has a transparent single-hole texture. It is a formulation that exhibits overlapping performance from the standpoint of detergency, measured at 0.1% concentration in the bath, in a composition that forms a solution. Similarly, composition C has the same components as Mll composition A, but without the stabilizer, in a composition that forms a clear, AAA bath solution, as measured by the O]φ concentration in This formulation has the highest performance in terms of cleaning power. a Paraboloids B and C are not according to the invention.

The 6E (4+) forces of compositions A, B and C were measured under the following conditions on test fabrics using a Turgormeter apparatus V manufactured by American Testing Company. Cloth TF 1 size - test cloth dirty (1 piece of nylon FCC-+
"y, Cataway (Prsca (awa, y) Cotton cloth with clay attached SC - Cotton cloth with sebum particles attached 5DC - Gucuron/cotton cloth with sebum particles attached) OMPA
Conditions: Liquid detergent concentration: 0.10% Water temperature: 120 Sewage hardness: Approximately 1.0% as calcium carbonate.
501111m At the end of the test, the test fabric was rinsed with tap water and dried. Reflectance readings were taken on each test fabric before and after washing using a Gardner XL-20 colorimeter. The reflectance change values (ΔRd) for each of the test fabrics are shown in Table 1 below. A value greater than 08 between two ΔRd values is considered significant for all hardened test fabrics. However, regarding measurement by EMPA, only ΔRa of 13 or more is considered significant.

Table 1 ΔRtff of fabrics stiffened with compositions A, B and C
i value composition 'IJ'N PCCFIvlPA SC5
DCA 37 24. 18 1044B
3524 17 842C29211543
4 Table 1 shows that use of the composition according to the invention results in unexpected cleaning power compared to two single phase liquid detergent compositions similar to the composition according to the invention but not formulated according to the invention. Composition A was superior to Composite B for most of the washed test fabrics, and was superior to Composition B for all of the washed test fabrics.
1 was superior to product C.

(5 people outside)

Claims (1)

[Claims] 1) The following components: (a) about 15-18% by weight of a water-soluble non-phosphate detergent builder salt (b) 5-9 moles of ethylene oxide and 12-15 carbon atoms
(c) (i) Betaine detergent having the following structural formula: Compound; and (ii) the following structural formula: ▲Mathematical formula, chemical formula, table, etc.▼ [In the formula, R^1 is an alkyl or alkyl mixture having 9 to 13 carbon atoms: R^2 and R^3 are related to each other at least one amphoteric detergent compound selected from the group consisting of alkylamidobetaine detergent compounds having methyl or ethyl;
~6% by weight (d) about 5-8% by weight of a solubilizer selected from the group consisting of (i) nonylsuccinic anhydride and (ii) an alkali metal salt of nonylmaleic anhydride; and (e) about 35% by weight water. A concentrated single phase homogeneous fortified aqueous detergent composition comprising ~65% by weight. (2) The nonionic detergent compound is ethylene oxide 6-7
The detergent composition according to claim 1, which is a condensation product of 1 mole of an aliphatic alcohol having 12 to 13 carbon atoms. (3) The detergent composition according to claim 1, wherein the builder salt is sodium citrate. (4) Claim 1, wherein R^1 in the structural formula of the betaine detergent compound is derived from coconut oil, R^2 and R^3 are each methyl, and R^4 is methylene. detergent composition. (5) The detergent composition according to claim 1, wherein the betaine detergent compound is cocoamidopropyldimethylammonium acetate. (6) The detergent composition of claim 1 containing less than about 3% by weight of a surface-active anionic detergent compound. (7) The detergent composition according to claim 1, which does not substantially contain C_1_0 to C_1_8 alkylbenzenesulfonate anionic detergents. (8) The detergent composition of claim 1 containing less than about 10% by weight of alkylene glycol. (9) The detergent composition according to claim 1, which does not substantially contain alkylene glycol. (10) The detergent composition according to claim 1, containing about 45 to 60% by weight of water. 11. The detergent composition of claim 1, wherein the concentration of builder salt is about 17% by weight of the composition and the nonionic detergent compound ranges from about 16 to 18%. (12) The detergent composition of claim 1, wherein the concentration of said solubilizer in the composition is about 7% by weight. (13) The following ingredients: (a) about 15-18% by weight of water-soluble non-phosphate detergent builder salt (b) 5-9 moles of ethylene oxide and 12-15 carbon atoms.
(c) (i) Betaine detergent compound having the following structural formula: : and (ii) The following structural formula: ▲Mathematical formula, chemical formula, table, etc.▼ [In the formula, R^1 is an alkyl or alkyl mixture having 9 to 13 carbon atoms, and R^2 and R^3 are independent of each other from about 1 to 6% by weight of at least one amphoteric detergent compound selected from the group consisting of: methyl or ethyl; R^4 and R^5 independently of each other are methylene, ethylene or propylene radicals; (d) (i) nonylsuccine; a concentrated single-phase homogeneous composition comprising: about 5-8% by weight of a solubilizing agent selected from the group consisting of an acid anhydride and (ii) an alkali metal salt of nonylmaleic anhydride; and (e) about 35-65% by weight of water. A method of washing comprising contacting a stained and/or soiled fabric to be washed with an aqueous detergent composition. (14) The method according to claim 13, wherein the builder salt is sodium citrate. (15) The nonionic detergent compound is ethylene oxide 6-
14. The method according to claim 13, which is a condensation product of 7 mol and 1 mol of an aliphatic alcohol having 12 to 13 carbon atoms. (16) R^1 in the structural formula of the betaine detergent compound
14. The method of claim 13, wherein is derived from coconut oil, R^2 and R^3 are each methyl and R^4 is methylene. (17) The method according to claim 13, wherein the liquid detergent composition does not substantially contain C_1_0-C_1_8 alkylbenzenesulfonate anionic detergent. (18) The method according to claim 13, wherein the liquid detergent composition is substantially free of alkylene glycol. 19. The method of claim 13, wherein the liquid detergent composition contains about 45-60% by weight water. (20) in the liquid composition of claim 13, wherein the concentration of the builder salt is about 17% by weight of the composition and the nonionic detergent compound ranges from about 16 to 18% by weight of the composition; 14. The method of claim 13, wherein the concentration of said solubilizer is about 7% by weight. (22) The method according to claim 1, wherein the concentration of the detergent composition in the washing water is about 0.1% by weight.