JPH0633434B2 - Gel-like detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a gel detergent composition. More specifically, it relates to a gel-like detergent composition containing an alkali metal salt of lanolin fatty acid, a terpene hydrocarbon and / or an isoparaffin hydrocarbon, and a specific surfactant.

<Prior Art> Conventionally, a natural wax ester and / or a terpene hydrocarbon and / or an isoparaffin hydrocarbon is used as a gelling agent in the presence of glycols and / or glycol monoethers and / or ethyl alcohol. A gel-like detergent composition obtained by reacting a lanolin fatty acid with a caustic alkali aqueous solution and then cooling is known (Japanese Patent Laid-Open No. Sho 6-66).
0-197797).

<Problems to be Solved by the Invention> However, such a known gel-like detergent composition cannot be washed off with water when it adheres to a hand or a substrate during washing, and thus discomfort remains. However, there is a problem that it is easy to recontaminate, which is inconvenient for actual use.

<Object of the Invention> Therefore, an object of the present invention is to provide a gel detergent composition containing a water-soluble terpene hydrocarbon and / or isoparaffin hydrocarbon.

<Means for Achieving the Purpose> In order to achieve the above-mentioned object, the present inventor has studied various additives, and as a result, the addition of a specific surfactant did not affect the gel composition and resulted in a detergent composition. We succeeded in making the product water-soluble. That is, according to the present invention, 2 to 30 wt% of lanolin fatty acid alkali metal salt, 30 wt% or more of terpene hydrocarbon and / or isoparaffin hydrocarbon, higher alcohol ethylene oxide adduct, polyhydric alcohol fatty acid ester ethylene oxide addition Products, fatty acid amide ethylene oxide adducts, fatty acid amides of alkanol amides, polyethylene glycol type surfactants of higher alkylamine ethylene oxide adducts, polyhydric alcohol type surfactants, higher alcohol sulfates, higher alcohol ethers, α- Surfactant selected from the group consisting of olefin sulfonate soda, sulfonate, sulfate ester salt or a mixture thereof 1.0 to
A gel detergent composition containing 40% by weight is provided.

<Structure of Invention> The present invention will be described in more detail below.

Specific surfactants that can be used in the present invention include higher alcohol ethylene oxide adducts such as natural alcohols such as coconut oil reducing alcohol and beef tallow reducing alcohol or synthetic alcohols such as Ziegler alcohol, exoalcohol and secondary alcohol, and ethylene oxide 5 -40 mol added higher alcohol ethylene oxide adduct (for example, trade name "Emarex" 1
No. 00,500,700 manufactured by Japan Emulsion Co., Ltd.); polyhydric alcohol fatty acid ester ethylene oxide adduct, for example, glycerin fatty acid ester, hydrogenated castor oil, etc., adduct obtained by adding 5 to 40 mol of ethylene oxide to sorbitan fatty acid ester. (For example, trade name "Tween series" manufactured by ICI) and the like; fatty acid amide ethylene oxide addition product, for example, addition product of 5 to 30 moles of ethylene oxide to diethanolamide or monoethanolamide such as coconut fatty acid or lauric acid or stearic acid ( For example, trade name "Amijet" manufactured by Kawaken Fine Chemicals Co., Ltd .; fatty acid amides such as alkanolamides, for example, diethanolamide or monoethanolamide such as coconut fatty acid or lauric acid or stearic acid (for example, trade name "Amisol" Kawa Fine Chemical Co., Ltd.), polyethylene glycol-type surfactants of higher alkylamine ethylene oxide adducts; fatty acid esters of glycerol, pentaerythritol fatty acid esters, sorbitol and sorbitan fatty acid esters, sucrose esters,
Polyhydric alcohol type surfactants such as alkyl ethers of polyhydric alcohols; higher alcohol sulfates such as natural alcohols such as coconut oil reducing alcohol and tallow reducing alcohol, or sulfates of synthetic alcohols such as Ziegler alcohol, oxo alcohol and secondary alcohol Sodium salt or triethanolamine salt (for example, trade name "Emar series" manufactured by Kao Soap Co., Ltd.)
Etc .; higher alcohol ether (higher alcohol polyethylene glycol ether), for example, reaction product of the above-mentioned alcohol sulfate ester with polyethylene glycol, for example, trade name "Sandet series" Sanyo Kasei Co., Ltd.
.Alpha.-olefin sulfonate soda (for example, trade name "Lipolan series" or "soft detergent" manufactured by Lion Corp .; sulfosuccinate diester type sulfonate, for example C as an alkyl group
_{s, 12,14} single or mixed dialkyl or monoalkyl sulfosuccinates such as sodium or diethanolamine or triethanolamine salts (for example, trade name "Perex Series" Kao Soap Co., Ltd .; sulfated oil) , Sulfated fatty acid esters and sulfated salts of sulfated fatty acids, sulfated olefins, etc .; sulfonates such as sodium alkylbenzenesulfonate, etc. Even if any of the above surfactants is used in combination. The surfactant is 1-40% by weight, preferably 5-2.
Addition of 0% by weight makes the gel water-soluble without affecting the composition of the gel. If the amount of the surfactant is less than 1.0% by weight, the gel detergent composition cannot be made water-soluble, and if it exceeds 40% by weight, the stability of the gel is impaired, which is not preferable.

In the present invention, 30% by weight or more of terpene hydrocarbon and / or isoparaffin hydrocarbon is used. Preferred terpene hydrocarbons are α-pinene, β-pinene, limonene, dipentene, p-cymene, 3-carene,
γ-terpinene, α-terpinene, myrcene, ocimene, aloocimene, p-menthane, pinan, terpinolene, 1-p-menthene, camphene, ferrandrene, sedrene, caryophyllene, humulene, farnesene, and limonene dimer, dipentene dimer or hydrogenation thereof. Or a mixture thereof, or a mixture mainly composed of them, for example, natural essential oils such as α-pinene, turpentine oil containing β-pinene as a main component, orange oil containing d-limonene as a main component, and Examples thereof include lemon oil. These natural terpene hydrocarbons contain a small amount of oxygen-containing compounds such as alcohols, ketones and aldehydes, but they do not affect gel formation, so that the oxygen-containing compounds may be mixed. Isoparaffinic hydrocarbons that can be used in the present invention have the general formula C _n H
_It is represented by _{2n + 2} (n is an integer of 8 to 20), and it itself is highly preferable as a solvent because it has a crying toxicity, has very little odor, has moderate volatility, and is inexpensive. Among the isoparaffinic hydrocarbons, those having a rational formula of C ₈ H _{18 to} C ₁₈ H ₃₈ , and more preferably C ₁₀ H _{22 to} C ₁₆ H ₃₄ are particularly suitable for the present invention. It is also possible to use a mixture of isoparaffin hydrocarbon and terpene hydrocarbon. Even when such a mixed hydrocarbon is used, it is included in the gel detergent composition of the present invention. If the terpene-based hydrocarbon and / or the isoparaffin-based hydrocarbon is contained in an amount of less than 30% by weight, the gel detergent composition having a desired cleaning effect cannot be prepared.

When the amount of the above-mentioned terpene hydrocarbon and / or isoparaffin hydrocarbon is less than 30% by weight, the lanolin fatty acid alkali metal salt becomes difficult to dissolve, which is not preferable.

The lanolin fatty acid alkali metal salt that can be used as a gelling agent in the present invention is a terpene hydrocarbon, an isoparaffin hydrocarbon, and a lanolin fatty acid added to a mixture of a specific surfactant, and the alkali metal salt is dissolved after heating. It can be formed in the final tissue by the dropwise addition of an aqueous solution, such as caustic soda or potassium hydroxide, preferably in an amount of 0.2 to 15% by weight of water in the final composition. . Alternatively, an alkali metal salt of lanolin fatty acid may be prepared in advance, added to a mixture of terpene hydrocarbon and / or isoparaffin hydrocarbon (surfactant), and dissolved by heating. The lanolin fatty acid alkali metal salt can also be obtained by heating and dissolving the lanolin fatty acid in alcohol such as ethanol, reacting it with an aqueous solution of an alkali metal salt such as caustic soda or caustic potash, and then removing ethanol and water by evaporation. Lanolin fatty acids contain a large amount of iso-fatty acids and hydroxy-fatty acids in addition to straight-chain fatty acids. The carbon number of such lanolin fatty acid is widely distributed over 9 to 34, and linear fatty acid (C _{10 to} C ₃₂ )
Is about 7%, iso-fatty acid (even acid) is about 60%, and anteiso fatty acid (odd acid) is about 30%. A preferred lanolin fatty acid is a fatty acid obtained by hydrolyzing lanolin, which is refined by a solvent extraction method, molecular distillation or the like to reduce a peculiar odor. These fatty acids can be industrially produced and are commercially available. For example, there is lanolin fatty acid SDO (molecularly distilled) (Yoshikawa Oil Co., Ltd.) and the like.

In the present invention, in addition to the above components, a solvent such as glycols, glycol monoethers and ethyl alcohol may be mixed and used up to 30% by weight. Preferred glycols include, for example, hexylene glycol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, diethylene glycol,
1,6-hexanediol, 1,5-pentadiol,
Examples include, but are not limited to, 2,2-dimethyl-1,3-propanediol, or a mixture thereof. The glycol monoethers are preferably monomethyl ethers of glycols, monoethyl ether, 3-ethyl-3-methoxybutanol or a mixture thereof, but are not necessarily limited to such ethers.

In the present invention, in addition to the above components, known additives such as metallic soap and antioxidants may be added.

In the gel detergent composition according to the present invention, the lanolin fatty acid alkali metal salt, the terpene hydrocarbon and / or the isoparaffin hydrocarbon, and the surfactant are placed in a beaker and heated to completely dissolve the lanolin fatty acid salt. After that, a caustic soda aqueous solution is added dropwise to cause a reaction to be produced.

<Effects of the Invention> The gel-like detergent composition of the present invention has a large dissolving power for oil stains, and therefore, despite having a large cleaning power, it can be easily washed off when it adheres to a hand or finger. .

<Example> Hereinafter, the present invention will be described in more detail with reference to Examples.

Examples 1 to 3 and Comparative Examples 1 and 2 Ingredients (1), (2), (3), (4), (7) and (9), (1
Put (0) or (11) in a 200 ml beaker and heat to 65 ° C, (1) after the lanolin fatty acid LIV is completely dissolved (5)
Add a solution of caustic soda dissolved in (6) water and add 5-20
The reaction was carried out at 70-80 ° C for a minute. When the reaction was completed, a transparent solution was obtained. After completion of the reaction, (8) Fragrance was added, and the mixture was cooled with stirring to give a soft paste-type gel-like cleaning agent except for the comparative example.

Each of the cleaning compositions of Examples 1 to 3 and Comparative Example 2 was picked up, rubbed, and then rinsed with running water to observe the degree of cleaning agent removal. The product could be easily emulsified with water and removed, but the composition of Comparative Example 2 was insoluble in water and could not be removed.

The following table shows each compounding composition and the state of gelation and water solubility. However, in gelation and water-solubilization, ◯ in the table indicates that gelation or water-solubilization was good, and x indicates that gelation or water-solubilization was insufficient.

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Claims (1)

[Claims] 1. Alkali metal salt of lanolin fatty acid 2 to 30% by weight, terpene hydrocarbon and / or isoparaffin hydrocarbon 30% by weight or more, higher alcohol ethylene oxide adduct, polyhydric alcohol fatty acid ester ethylene oxide adduct, Fatty acid amide ethylene oxide adduct, fatty acid amide of alkanol amides, polyethylene glycol type surfactant of higher alkylamine ethylene oxide adduct, polyhydric alcohol type surfactant, higher alcohol sulfate ester, higher alcohol ether, α-olefin sulfone A gel-like detergent composition containing 1.0 to 40% by weight of a surfactant selected from the group consisting of acid salt soda, sulfonate, sulfate salt or a mixture thereof.