JPS6039320B2 - Powder detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved powder soap detergent composition, and more particularly, to a detergent composition that can prevent soap scum from forming during rinsing when used for washing. It is.

Setsuken, which is an alkali metal salt of a fatty acid, has excellent detergency, mildness to the skin, and safety, and has been widely used as a detergent for everyday use, hand washing, clothing washing, etc. since ancient times. However, this soap itself has poor solubility in cold water, and moreover, it reacts with calcium, magnesium, or iron ions, especially in hard water, producing a water-resistant divalent metal soap, which causes various problems. There are drawbacks to living.

In other words, this insoluble soap aggregates in water and becomes so-called scum, and this scum settles on the items being washed, causing yellowing of the items being washed, the growth of mold, and the generation of strange odors. The scum then settles as dirt on the containers being washed, becoming so-called "black trash." All of these adverse effects cause complaints from users, and the detergent is evaluated as a defective product. However, it is known that metal chelating agents and scum dispersants are used for the purpose of preventing scum generation or dispersing scum.

However, even with these methods, satisfactory results have not yet been obtained. For example, even if a suitable amount of a metal chelating agent such as sodium ethylenediaminetetraacetate or sodium nitrilotriacetate is added to the washing fluid, this agent will be diluted to an almost infinite degree during rinsing and lose its effectiveness, resulting in scum. is generated. On the other hand, as scum dispersants, conventionally used polyoxyethylene alkyl ether type nonionic surfactants, anionic surfactants such as acylated tauride and acylated ethoxytauride (J.A.0.C
．． S. 48, 35-(1971), habetaine, sulfobetaine (J.AO.C, S.551) (19
78)) and aminocarboxylic acid type amphoteric active agents (J.A.
0. C. S. 49652-(1972)) have been reported, but although they all have some degree of effect, they are still insufficient. As a result of extensive research in order to overcome the above-mentioned drawbacks found in detergents containing Setsuken, the present inventors have selected acylated tauride as a scum dispersant, and have also combined this acylated tauride with certain other surfactants. It was discovered that by combining the following, it exhibited excellent scum prevention properties and significantly improved the poor foaming of soap in hard water, which had been a problem with soap detergents.Based on this knowledge, the present invention was developed. I was able to complete it.

That is, the present invention is based on the general formula R, COOM.
...... [1} (in the formula, R is an alkyl group or alkenyl group having 7 to 21 carbon atoms, M is an alkali metal, a substituted or unsubstituted ammonium group), An acylated tauride represented by the general formula (in the formula, R2 is an alkyl group or alkenyl group having 11 to 17 carbon atoms, M2 is an alkali metal, substituted or substituted ammonium group), and [C' general formula ( (In the formula, R3 is an alkyl group or alkenyl group having 10 to 18 carbon atoms, R4 is an alkyl group having 1 to 4 carbon atoms, and M3 is an alkali metal or substituted or unsubstituted ammonium group)
Q-sulfo fatty acid ester salt represented by the general formula (in the formula, R5 is an alkyl group or alkenyl group having 12 to 16 carbon atoms, R6 is a hydrogen atom or a methoxy group, m is a number of 0.5 to 3, and M4 is an alkali metal, a substituted or unsubstituted ammonium group), an ether sulfate ester salt represented by the general formula (wherein R7 is an alkyl group or alkenyl group having 12 to 18 carbon atoms, and R8 is a hydrogen atom or a hydroxyl group); Sulfobetaine represented by the formula (R9 in the formula is an alkyl group or alkenyl group having 11 to 17 carbon atoms), fatty acid alkanolamide represented by the general formula (R9 in the formula is an alkyl group or alkenyl group having 11 to 17 carbon atoms), and Q-olefin sulfonate having 14 to 22 carbon atoms. and at least one surfactant, respectively, based on the total weight of the composition, 30 to 70% of the wind component, (
The present invention provides a powder soap detergent composition characterized in that it contains component B in an amount of 1 to 20%, and component B in an amount of 1 to 15%.

The soap used as a wind component in the present invention has the general formula {1}
and the total number of carbon atoms is 8 to 22, preferably 10
These are alkali metal salts of higher fatty acids and salts neutralized with ammonia or organic mine, which are used as general raw materials for detergents in items 1 to 18, and sodium salts and potassium salts are particularly preferred.

The soap of the present invention can also directly saponify natural animal or vegetable oils such as tallow, palm oil, coconut oil, palm kernel oil, and the like, or neutralize fatty acids derived therefrom. Manufactured by. Furthermore, it can be produced by neutralizing synthetic fatty acids. The amount of soap used in the present invention is between 30 and 70%, preferably between 35 and 60%, based on the total weight of the composition.

If the amount is 30%, the detergency of the soap powder will not be sufficient, while if it exceeds 70%, the solubility will be extremely poor. The acylated tullide used as the 'B-component in the present invention is represented by the general formula (2), and can be produced by a conventional method.

Typical acylated taurides include, for example, tallow fatty acid tauride, hydrogenated tallow fatty acid tauride, palm oil fatty acid tauride, coconut oil fatty acid tauride, and the like. The amount of acylated tauride used in the present invention is between 1 and 20%, preferably between 3 and 20%, based on the total weight of the composition.

If the amount is less than 1%, the effect of preventing scum generation will be insufficient, while if it exceeds 20%, the product will tend to solidify over time, which is not preferable. With this invention'
The Q-sulfo fatty acid ester salt represented by the general formula {3-, which is used as the component C}, can be prepared by sulfonating the fatty acid ester in a conventional continuous thin film sulfonation device or tank sulfonation device, and then neutralizing the fatty acid ester. It can be produced by any of the methods of sulfonating with any of the above-mentioned apparatuses, esterifying with an alcohol having 1 to 4 carbon atoms, and then neutralizing this.

In this case, the fatty acid or fatty acid ester used as a raw material may be a fatty acid or its ester having a predetermined number of carbon atoms derived from natural fats and oils (e.g., beef tallow, coconut oil, palm oil, palm kernel oil, etc.). In addition, synthetic fatty acids having a predetermined number of carbon atoms derived from alcohols or olefins, or their esters can also be used. In addition, when producing the Q-sulfo fatty acid ester salt, the formula (wherein R3
is an alkyl group or alkenyl group having 10 to 18 carbon atoms, M is an alkali metal, or a substituted or unsubstituted ammonium group) is usually produced as a by-product.
2% by weight of the amount of Q-sulfo fatty acid ester salt used
Mixing in the powder soap composition of the present invention is allowed as long as it is below.

The ether sulfate ester salt represented by the general formula {4) used as the component in the main station C} is prepared by adding ethylene oxide or propylene oxide to an aliphatic saturated or unsaturated alcohol having 12 to 16 carbon atoms in the presence of an alkali catalyst. First, the corresponding ether is prepared by adding 0.5 to 3 moles, and then sulfated with chlorosulfonic acid or sulfuric anhydride in a conventional manner, and then neutralized with an alkali metal hydroxide, ammonium, or organic amide. It is prepared by

Sulfuric acid ester salts suitable for the present invention include, for example, sulfuric acid ester salts of alkyl ethers with an average of 1 mol of ethylene oxide added to 1 mol of natural lauryl Z alcohol, and 12-15 carbon atoms obtained by oxo synthesis. An average of 2 moles per mole of aliphatic saturated alcohol having 12 to 13 carbon atoms obtained by sulfuric acid Z ester salt of an alkyl ether to which ethylene oxide has been added and oxo synthesis of an average of 3 moles per mole of aliphatic saturated alcohol. Examples include sulfuric acid ester salts of alkylenals to which moles of ethylene oxide have been added. The Q-olefin disulfonate used as a component in the present invention is a Q-olefin, inner olefin, or vinylidene olefin with a predetermined carbon content obtained by a wax cracking method or a Ziegler soot-based ethylene polymerization method. Or using a mixture of these as raw materials,
It can be produced by sulfonating this in the usual manner and then neutralizing it.

Sulfobetaine represented by the general formula {5} used as component {C) in the present invention is produced by a conventional method. Typical sulfobetaines include, for example, octyldimethyl-2-hydroxypropylsulfobetaine, dodecyldimethyl-2-hydroxypropylsulfobetaine, octadecyldimethyl-2-hydroxypropylsulfobetaine, dodecyldimethylpropylsulfobetaine, octadecyldihydroxyethylsulfobetaine, Examples include 2-hydroxypropylsulfobetaine, coconut (C,2-C,4)alkyldimethyl-2-hydroxypropylsulfobetaine, and the like. The fatty acid alkanolamide represented by the general formula (2) used as the {C subtraction in the present invention can be produced by a conventional method.

Typical fatty acid alkanolamides include, for example, coconut oil fatty acid monoethanolamide, lauric acid monoethanolamide, myristic acid monoethanolamide, and the like. The amount of the above-mentioned at least one surfactant contained in the powder soap composition of the present invention is from 1 to 15%, preferably from 2 to 10%, based on the total weight of the composition.

If the amount is less than 1%, the effect of preventing scum generation will be insufficient, while if it exceeds 15%, the performance as a powder soap will deteriorate. In addition to the above-mentioned essential ingredients, the powder soap composition of the present invention may contain, if necessary, conventional auxiliary additives commonly used in ordinary powder detergents and powder soaps, such as sodium carbonate and sodium silicate. Contains builders, fillers such as sodium sulfate, anti-recontamination agents such as carboxymethyl cellulose (CMC) and polyethylene glycol (PEG), other stabilizers, bleaches, poppy seeds, photobrighteners, fragrances, pigments, etc. be able to.

The powdered soap compositions of the present invention exhibit superior effectiveness that cannot be achieved with conventional soap cleaning agents due to the unique interaction of fatty acid soaps, acylated tullides, and specific surfactants.

In other words, the powder soap composition of the present invention can prevent the formation of scum during washing, and even when washing items with relatively large stains, scum will not be generated or the washing tank will not be scum-filled. It will not be contaminated by.
It also shows good foaming and detergency even in hard water. Next, the present invention will be explained in more detail with reference to Examples.

The scum dispersibility and foaming properties in Examples were evaluated as follows. Scum dispersibility: Washing machine (spiral type,
0.14% by weight tap water (5oD
H) A solution was made.

Using a stockinette shirt worn for 3 days as the cloth to be washed,
The wash was carried out according to normal procedure at 25 oo at a ratio of 1:30. Next, the cloth to be washed was dehydrated for 1 minute, rinsed twice for 3 minutes with 0 tap water containing no composition, and then the pinyl chloride plate was gently removed and observed whether scum was attached.

The evaluation of the scum dispersant was based on the following criteria.

○． ．． ．． There are almost no scum pillows. △: Very slight scum deposits are observed.

×...Many scum deposits are seen. Foaming property: A line-sealed rear skin shirt worn for 3 days was used as the cloth to be washed, and washed under the same conditions as above.

After the washing was completed, the foam generated was leveled over the entire water surface, and the foam height was measured at five locations, and the average value is shown.

**Example 1-1
4 Fatty acid salts, tauride, and various surfactants of the types and amounts shown in Table 1, and auxiliary additives were uniformly mixed in a ball mill to prepare various powdered soap detergent compositions.

The foaming properties and scum dispersant of the composition thus obtained were measured and the results are shown in Table 1.

Table 1 (1) Beef tallow fatty acid sodium (
2) Sodium coconut oil fatty acid (3) Sodium palm oil fatty acid (4) Hydrogenated beef tallow fatty acid thallidatrium (5) Hydrogenated palm oil fatty acid thallidatrium
(6) o-round bottom/hardened beef tallow fatty acid methylester sodium (7) o-round kbo, hardened/(-mu oil fatty acid methylester sodium triwaum (8) C,4~,5 alkyl-
Sodium sulfate (EOP=0.5) (9) C, 2~
,5 alkyl ether sodium sulfate (EOP=2.0
) (10) Sodium C,4-,8o-olefin sulfonate 01) Sodium C,6o-olefin sulfonate (12) Ch. Sialkyldimethyl - 2-Hydroxyph Lorille Mominku Betine (13) Coconut Oil Fatty Acid Monoechnolamide Comparative Examples 1-6 Fatty acid salts, tullide, surfactants and auxiliary additives of the types and amounts shown in Table 2 A detergent composition was prepared in the same manner as in the examples.

The foaming properties and scum dispersant of the composition thus obtained were measured and the results are shown in Table 2.

Each symbol in Table 2 has the same meaning as in Table 1.

Claims (1)

[Scope of Claims] 1 (A) Setsuken represented by the general formula R_1COOM_1 (wherein R_1 is an alkyl group or alkenyl group having 7 to 21 carbon atoms, and M_1 is an alkali metal or a substituted or unsubstituted ammonium group) (B) General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (R_2 in the formula is an alkyl group or alkenyl group having 11 to 17 carbon atoms, M_2 is an alkali metal, substituted or unsubstituted ammonium group) Acylated tauride represented by (C) General formula ▲ Numerical formula, chemical formula, table, etc. Base, M_
3 is an alkali metal, substituted or unsubstituted ammonium group) α-sulfo fatty acid ester salt, general formula ▲ Numerical formula, chemical formula, table, etc. ▼ (R_4 in the formula is an alkyl having 12 to 16 carbon atoms group or alkenyl group, R_6 is a hydrogen atom or a methyl group, m is 0.
Ether sulfate ester salt represented by the number 5 to 3, M_4 is an alkali metal, substituted or unsubstituted ammonium group), general formula ▲ There are numerical formulas, chemical formulas, tables, etc. ▼ (R_7 in the formula has 12 to 18 carbon atoms) Sulfobetaine is represented by the general formula ▲ numerical formula, chemical formula, table, etc. ▼ (R_9 in the formula is an alkyl group or alkenyl having 11 to 17 carbon atoms). Based on the total weight of the composition, at least one surfactant selected from fatty acid alkanolamides represented by A) Ingredients 30-70
%, (B) component 1 to 20%, and (C) component 1 to 15%.