JPH0734100A - Solid detergent composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition excellent in foaming power and feel when used, causing no its swelling up or deformation of shape with its dissolution, also affording the skin after use with dampishness, comprising a surfactant, a liquid or semi-solid oil and a gelling agent at specified proportions. CONSTITUTION:This detergent composition comprises (A) 35-98wt.% of surfactant, (B) 1-30wt.% of a liquid or semi-solid oil (pref. vaseline or coconut oil) and (C) 0.01-5wt.% of a gelling agent (e.g. 12-hydroxystearic acid, dibenzylidene sorbitol). For the component A, in general, when the objective solid detergent is a soap, an oxide of fatty oil or an alkalineutralized product of fatty acid is used; when the solid detergent is a combination bar, a saponified product or neutralized product of the oxide of fatty oil or a synthetic surfactant is used; or when the solid detergent is a syndet bar, a synthetic surfactant is used. This synthetic surfactant is pref. an alkyl sulfate or sulfobetaine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid detergent composition, and more particularly, it relates to a solid detergent composition which has an excellent feeling in use, and which is free from fluff and melt-down during use.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Solid detergents are required to provide excellent foaming and a favorable feeling during use. Commonly used soaps, for example, alkali metal salts of higher fatty acids, are excellent in foaming, but have irritation by alkali, and
It has a drawback that a large amount of soap scum adheres to the skin during rinsing and makes it stiff. In order to correct these drawbacks, attempts have been made to blend higher fatty acids, higher alcohols, oils such as hydrocarbons, and moisturizers such as propylene glycol. Attempts have also been made to obtain a combination bar in which soap is mixed with a synthetic surfactant, a syndet bar in which a synthetic surfactant is hardened with an additive (binder), and the like.

However, even when higher fatty acids are added to soap, the alkalinity is slightly reduced,
Also, the feeling of tightness after use is hardly improved. Even in the case of adding an oil component or a humectant, a desired effect cannot be obtained by adding a small amount, and when a large amount is added, foaming is markedly hindered, and solid properties are adversely affected. Also,
The combination bar and the syndet bar have drawbacks in terms of physical properties such that they melt and collapse when used. Solid detergents containing paraffin waxes and the like in order to prevent the above-mentioned frost and meltdown are known. However, these additives do not show sufficient effects to prevent swelling, dissolution collapse, etc. in a small amount, and on the other hand, if added in a large amount, they have the drawback of deteriorating foaming. Does not show the effect of imparting a proper moist feeling to the skin.

Therefore, it has been desired to develop a solid detergent composition which has an excellent foaming power and gives a good feeling of use, and which does not cause fluffing, melt-down and the like during use.

[0005]

Means for Solving the Problems The inventors of the present invention have made extensive studies in view of such circumstances, and as a result, by adding a cleaning activator, a specific oil content and a gelling agent described below, excellent foaming power and The present invention has been completed by finding that a solid detergent which gives a feeling of use, does not cause fluffing and melt-down, and further gives a moist feeling to the skin after use has been completed.

That is, the present invention comprises the following component (A),
(B) and (C); (A) Surfactant 35 to 98 wt%, (B) Liquid or semi-solid oil 1 to 30 wt%, (C) Gelling agent 0.01 to 5 wt%, The present invention provides a solid detergent composition comprising:

As the surfactant of the component (A) used in the present invention, when the solid detergent of the present invention is soap, a saponification product of fats and oils or an alkaline neutralization product of fatty acids is used in the combination bar. In the case of the above, a saponified product of the above-mentioned fats and oils or an alkali neutralized product of a fatty acid and a synthetic surfactant are used, and in the case of a syndet bar, a synthetic surfactant is used.

The saponification product of fats and oils or the alkali neutralized product of fatty acids is preferably animal fats and oils represented by beef tallow, sheep fat and the like; coconut oil, palm oil, palm kernel oil, soybean oil, olive oil, cottonseed oil. Each of the vegetable oils and fats represented by, for example, is saponified with caustic soda, or the fatty acids obtained by decomposing these oils and fats are neutralized with a base such as caustic soda, caustic potash, and alkanolamine. Is mentioned.

The synthetic surfactant is preferably, for example, acyl glyceryl sulfate, acyl isethionate, alkyl sulfate, polyoxyethylene alkyl ether sulfate, alkyl glyceryl ether sulfonate, alkyl sulfosuccinate, polyoxyethylene alkyl ether. Acetate, N-acyl-β-alaninate, N-acyl sarcosinate, methyl acyl taurate, α-sulfo fatty acid ester, N-
It is selected from the group consisting of acylglutamates, alkyl phosphates, alkyl glucosides, betaines, sulfobetaines and mixtures thereof.

The component (A) is contained in the composition of the present invention in an amount of 35 to 9
8% by weight (hereinafter, simply indicated by "%") is contained.

The oil component which is liquid or semi-solid at room temperature of the component (B) used in the present invention is preferably, for example, hydrocarbons such as petrolatum, liquid paraffin and squalane, coconut oil, palm oil, olive oil, Examples thereof include vegetable oils such as mink oil, fatty acid triglycerides, neopentyl glycol dicaprate, diisostearyl malate, isopalmityl myristate, cholesteryl isostearate, dipentaerythritol fatty acid ester, and esterified oils such as myristate diglyceride.
These can be used alone or in a combination of two or more.

The component (B) is contained in the composition of the present invention in an amount of 1 to 30.
%, Preferably 2 to 20%.

The gelling agent for component (C) used in the present invention is a liquid or semi-solid oil in a relatively small amount (usually 10%).
Hereinafter, when added, it is not particularly limited as long as it is a substance capable of forming a three-dimensional network structure and solidifying (gelling) it, for example, 12-hydroxystearic acid; dibenzylidene sorbitol; palmitic acid of dextrin, stearin. Higher fatty acid esters such as acids (for example, Chiba Milling Co., Leopard); polyalkylated dialkyl phosphates such as aluminum dicetyl phosphate (for example, Japanese Patent Publication No. 1-4112)
2) and dialkylphosphoric acid polyaluminum salt (for example, JP-A-1-193278); lauroylglutamic acid dibutylamide (for example, GP manufactured by Ajinomoto Co., Inc., GP
-1); Metal soaps such as aluminum stearate. These may be used alone or in combination of two or more.

The component (C) is contained in the composition of the present invention in an amount of 0.01 to 0.01%.
5%, preferably 0.02 to 3%.

To the solid detergent composition of the present invention, it is preferable to further incorporate solid oil as the component (D) in order to further promote gelation of the composition. As the solid oil, for example, carnauba wax, natural wax such as candelillarola, paraffin wax, petroleum wax such as microcrystalline wax, ozokerite, mineral wax such as ceresin, lauric acid, myristic acid,
Examples thereof include higher fatty acids such as palmitic acid and stearic acid or higher alcohols such as myristyl alcohol, palmityl alcohol and stearyl alcohol, or lauric acid monoglyceride, and glycerin fatty acid esters such as monoglyceryl stearate. These may be used alone or in combination of two or more.

The solid oil is preferably contained in the composition of the present invention in an amount of 1 to 30%, more preferably 2 to 20%.

In the solid detergent of the present invention, in addition to the above components,
If necessary, within a range that does not impair the effects of the present invention, higher fatty acids and higher fatty acid esters, which are compounding components of ordinary skin cleansing agents, superfatting agents such as silicone, propylene glycol, humectants such as glycerin, fragrances, Dyes, ultraviolet absorbers, antioxidants, bactericides, preservatives and the like can be added.

In order to produce the soap which is the solid detergent composition of the present invention, a saponification product of the above-mentioned component (A) fat and / or an alkali neutralized product of a fatty acid is obtained as a soap base, and thereafter, Components (B) and (C), and optionally (D)
In addition, other additives may be added, and mixing, kneading, extrusion and stamping may be performed according to a conventional method.

In order to produce a combination bar, components (B) and (C) are added to a mixture of the above-mentioned component (A), a saponified product of fats and oils and / or an alkaline neutralized product of fatty acids, and a synthetic surfactant, and If necessary, (D) and other additives may be added, and mixing, kneading, extrusion and stamping may be carried out in a conventional manner.

In order to produce the syndet bar, first, the components (B) and (C) and, if necessary, (D) and other additives are added to the synthetic surfactant of the component (A), and the It may be mixed, kneaded, extruded and stamped according to the method.

[0021]

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited thereto. Examples 1-6 and Comparative Examples 1-4

A solid detergent composition having the composition shown in Table 1 was produced by a conventional method. For each composition obtained,
The fluffiness during use and the moist feeling after washing were evaluated by the following evaluation methods and evaluation criteria. Table 1 together with the results
(B in Table 1 means balance).

(Fuyoke) For each solid detergent composition,
It was used in the bathroom under the same conditions for 2 weeks, and the condition after that was visually evaluated. The evaluation criteria are as follows. ⊚: Not fluffy at all ○: Not so much fluffy. Δ: Somewhat soft. X: Very soft.

(Moistiness) Ten expert panelists conducted sensory evaluations on each solid detergent. The evaluation criteria are as follows, and the results are shown as average values. 5: Moisturize. 4: A little moist. 3: Neither can be said. 2: Not very moist. 1: Do not moisturize.

[0025]

[Table 1]

Example 7 A solid detergent composition having the following composition was produced by a conventional method.

[0027]

[Table 2] (Composition) (wt%) Soap substrate Balance Sodium glyceryl sulfate laurate 15 Laurylamidopropyl betaine 7 Vaseline 512-Hydroxystearic acid 0.1 Lauric acid monoglyceride 8 Stearic acid 2 Pigment 0.4 Perfume 1.2

Example 8 A solid detergent composition having the following composition was produced by a conventional method.

[0029]

[Table 3] (Composition) (% by weight) Coconut oil fatty acid sodium glyceryl sulfate balance Monoglyceryl laurate 20 Vaseline 5 12-hydroxystearic acid 0.05 Pigment 0.5 Perfume 1.2

Example 9 A solid detergent composition having the following composition was produced by a conventional method.

[0031]

[Table 4] (Composition) (% by weight) Coconut oil Fatty acid Sodium glyceryl sulfate Balance Disodium lauryl sulfosuccinate 10 Monoglyceryl laurate 15 Isooctanoic acid triglyceride 10 12-Hydroxystearic acid 0.1 Pigment 0.3 Perfume 1.1

Example 10 A solid detergent composition having the following composition was produced by a conventional method.

[0033]

[Table 5] (Composition) (wt%) Coconut oil fatty acid ethyl ester sodium sulfonate Balance stearic acid 15 Liquid paraffin 7 12-Hydroxystearic acid 0.15 Pigment 0.5 Perfume 1.0

Example 11 A solid detergent composition having the following composition was produced by a conventional method.

[0035]

[Table 6] (Composition) (% by weight) Soap substrate Balance Palm oil fatty acid monoglyceride 10 Palm oil fatty acid monoethanolamide 2 Squalane 8 Dextrin fatty acid ester 0.16 Pigment 0.3 Perfume 1.2

Example 12 A solid detergent composition having the following composition was produced by a conventional method.

[0037]

[Table 7] (Composition) (wt%) Soap substrate Balance POE (6) Sodium lauryl ether acetate 10 Squalane 5 Aluminum distearylphosphate 0.05 Pigment 0.2 Perfume 1.2

Each of the solid detergent compositions obtained in Examples 7 to 12 gave a moist feeling to the skin after use without causing swelling or dissolution.

[0039]

EFFECT OF THE INVENTION The solid detergent composition of the present invention has an excellent foaming power and gives a good feeling in use, and furthermore, it does not cause any smearing or melting during use.
Furthermore, it keeps the skin moisturized after use for a long time.

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[Procedure amendment]

[Submission date] July 20, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

[0027]

[Table 2] (Composition) (% by weight) Soap substrate Balance Glyceryl sodium laurate 15 Amidopropyl betaine laurate 7 Vaseline 512-Hydroxystearic acid 0.1 Lauric acid monoglyceride 8 Stearic acid 2 Pigment 0.4 Perfume 1. Two

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Claims (2)

[Claims] 1. The following components (A), (B) and (C); (A) surfactant 35 to 98% by weight, (B) liquid or semi-solid oil 1 to 30% by weight, (C) gelation. A solid detergent composition comprising 0.01 to 5% by weight of an agent. 2. The solid detergent composition according to claim 1, further comprising the following component (D): (D) solid oil 1 to 30% by weight.