JPH01221496A - Liquid detergent composition - Google Patents

Abstract

PURPOSE:To enable the formation of an all-purpose liq. detergent compsn. for living house which is excellent in the detergency for removing oil dirt and scale in a bathroom, by mixing a surfactant with a particular solvent, amino carboxylic acid, and an inorg. alkaline substance. CONSTITUTION:This liq. detergent compsn. comprises 0.1-20wt.% surfactant, 1-20wt.% solvent of formula I (wherein R and R' may be the same or different and are each hydrogen or a 1-6C straight-chain or branched alkyl group; and when the total number of carbon atoms of R and R' is 1-7, m=0-4, n=0-4 and m+n=1-6, while when R and R' are each hydrogen, m=0 and n=5-25), 0.5-20wt.% amino carboxylic acid of formulae II-V (wherein A is -CH2COOH or -C2H4COOH and B is -CH2COOH, -C2H4OH, or the like) or its salt, and 0.1-15wt.% alkaline substance selected from among inorganic alkalis.

Description

[Detailed Description of the Invention] The present invention relates to a liquid cleaning composition for residential use, and particularly for removing stubborn oil stains in kitchens, etc., and cleaning in bathrooms and toilets. The present invention relates to a liquid detergent composition that exhibits excellent cleaning power even against dirt.

Conventional Technology Most of the dirt in the kitchen is caused by oil used during cooking or oil contained in food, which becomes fine particles that fly up and adhere to the food when it is heated. If these oils are left for a long period of time, they will be affected by the oxidation effects of heat and oxygen in the air, and will turn into a brown, viscous resinous substance. Since this degraded oil is a stubborn stain that cannot be removed by ordinary cleaning agents, various cleaning agents have been proposed. The liquid cleaning agent used for this purpose is a surfactant containing an alkaline agent such as caustic soda, caustic potash, alkali silicate, or alkanolamine, and a solvent such as ethylene glycol or monoalkyl ether of diethylene glycol. Alkaline cleaning agent (JP-A-54-1.58408
No.) has been known for a long time.

On the other hand, dirt in the bathroom is made up of a mixture of organic substances such as fatty acid metal salts (mainly calcium salts), free fatty acids, glycerides, nitrogen-containing compounds, and inorganic substances such as mud.

Conventionally, cleaning agents for removing such scale stains include:
An acidic cleaning agent containing a combination of hydroxycarboxylic acid as an acid substance, a surfactant, and a water-soluble solvent (Japanese Patent Laid-Open No. 52-7
No. 71111) is known.

The action of the above two types of cleaning agents on stains is that in the case of oil stain cleaning agents, an alkaline agent reacts with the denatured oil, which is the stain in the kitchen, to produce fatty acid soap, which is then emulsified by surfactants and solvents. It is removed by dispersion, solubilization, etc. - On the other hand, in the case of bathroom cleaners, fatty acid calcium, which is the main component of scale, is decomposed with an acid substance, and removed by emulsification, dispersion, solubilization, etc. using a surfactant or solvent. This is a boat fishing way of thinking. In this way, because the target dirt to be cleaned, the cleaning base, and the mechanism of action between the dirt and the dirt are different, the same cleaning agent has a satisfactory cleaning power for both oil stains in the kitchen and scale stains in the bathroom. There is no cleaning agent that exhibits this effect.

Problems to be Solved by the Invention The present invention provides an all-purpose liquid cleaning agent for residential use that has excellent oil stain cleaning power and is also effective in cleaning hot water stains in bathrooms. be.

The liquid cleaning composition of the present invention comprises the following (A), (B),
It is characterized by containing components (C) and (D).

(A) Surfactant: 0.1 to 20% by weight (B) Solvent represented by the following general formula (1): 1 to 20% by weight ROmo(C2H40)m (C3HGO)n-3-R'
(I) [In the formula, R, R', m, and n each represent the following.

R, R': hydrogen or a straight chain or branched alkyl group having 1 to 6 carbon atoms, which may be the same or different.

m, n: ■; m = O-4, n = O-4, m
+ n = 1 to 6 (however, when the number of carbon atoms in R + the number of carbon atoms in R' = 1 to 7) ■; m = O, n = 5-25 (however, when both R and R' are hydrogen)] (C) Amino represented by the following general formulas (n) to (V)
・Carboxylic acid or its salt; 0.5-20% by weight [
In the formula, A and B represent the following.

A knee CH2C0OH or -C284COOHB
: -CH2COOH1-C2H40H1-C2H4N
(CH2C0OH)2 or -C2H4N (CH7COOH)C2H4N (CH
, , C00H) 2) (D) Alkaline substance selected from inorganic alkalis 2 0.1 to 15% by weight Below, the present invention will be explained in more detail.

The surfactant as component (A) is not particularly limited as long as it can promote wetting and emulsification of dirt, and may be anionic,
Nonionic and amphoteric surfactants can be used. Representative examples of the surfactant component (A) are as follows, and these can be used alone or in combination of two or more.

(i) Anionic surfactant (1) Sulfonate type, straight chain or branched alkyl (cll~2□) benzenesulfonate, long chain alkyl (68~2□) sulfonate, etc. (2) Sulfate-1 type・Long-chain monoalkyl (cll~2□) sulfate ester salt ・Polyoxyethylene (1-6 mol) long-chain alkyl (C
S~2□) Ether sulfate salt/polyoxyethylene (1 to 6 mol) alkyl (c e
~□8) Phenyl ether sulfate salt, etc. (3) Phosphate type/long chain monoalkyl, dialkyl or sesquialkyl (C, +62□) phosphate/polyoxyethylene (1 to 6 mol) monoalkyl, dialkyl or sesquialkyl Alkyl (C8-2□) phosphates, etc. (4) Carboxylate-based saturated and/or unsaturated fatty acid salts having 10 to 24 carbon atoms The counter ions (cations) of each of the above anionic surfactants are:
These include alkali metal ions or alkaline earth metal ions such as sodium, potassium, and magnesium ions; alkanolamine ions such as monoethanolamine, jetanolamine, and triethanolamine, and ammonium ions.

(b) Nonionic surfactant/polyoxyethylene (1 to 20 mol) long chain alkyl (
CS~2□) Ether polyoxyethylene (1~20 mol) Alkyl (CS
~18) Phenyl ether, polyoxyethylene polyoxypropylene block polymer, higher fatty acid alkanolamide or its alkylene oxide adduct, etc. (c) Ampholytic surfactant, amino acid type amphoteric surfactant, alkyl sulfobetaine, alkyl acetate betaine, etc. The amount of surfactant component (A) such as betaine type amphoteric surfactant and imidacilline type amphoteric surfactant in the cleaning composition is as follows:
It ranges from 0.1 to 20 wt%, preferably from 1 to 10 wt%. If the blending amount is less than 0.1 νt%, the emulsifying and dispersing effect and solubilizing effect will not be sufficient. On the other hand, a blending amount exceeding 20 wt% is not preferable because it does not bring about any particular improvement in detergency, and on the contrary, delathering and rinsing properties deteriorate.

As the solvent for component (B), the following are used.

R○Mo(C2H40)nI(C3H60). ±R'
(1) [In the formula, R, R', m, and n each represent the following.

R, R': hydrogen or a straight chain or branched alkyl group having 1 to 6 carbon atoms, which may be the same or different.

m, n: ■: m = 0-4, n = O-4, m + n
= 1 to 6 (However, when the number of carbon atoms in R + the number of carbon atoms in R' = 1 to 7) ■; m = o, n = 5 to 25 (However, when both R and R' are hydrogen)] (B The number of moles of ethylene oxide and propylene oxide added to the solvent component () varies depending on the type of terminal group. The above case (■) indicates polypropylene glycol. The addition order and form of ethylene oxy F (EO) and propylene oxide (P○) may be either random addition or block addition.

Representative examples of the solvent of component (B) include ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monohexyl ether,
Diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl butyl ether, diethylene glycol diethyl ether, propylene glycol monobutyl ether, dipropylene glycol monobutyl ether, propylene glycol monopropyl ether, dipropylene glycol monopropylene Bill ether, tripropylene glycol monobutyl ether, dipropylene glycol monoethyl ether, C4H90 (
C2H40)1(C3H60)2. IH.

CH30 (C2H40), (C,H,O)□2C2H5
For example,

The solvent of component (B) should be present in the composition at 0.5 to 2 (ht%).
Preferably, it is blended in an amount of 1 to 15 wt%.

If the amount is less than 0.5 vt%, no effect will be obtained in removing stains, while if it is more than 20 tit%, the stability of the composition will deteriorate.

As component (C), aminocarboxylic acids or salts thereof represented by the following general formulas (II) to (V) are used alone or as a mixture of two or more.

(Margin below) [In formulas (II) to (TV), A and B represent the following.

A Knee CH2C0OH or -C2H4C00HB
Ni CH2C'OOH, -C2H40H, -C2H4N
(CH2COOH)2 or -C2H4N (CH2COOH)C2H4N (CH
2COOH)2) Typical examples of the aminocarboxylic acid of component (C) include ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, N-hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetrapropionic acid, triethylenetetraminehexaacetic acid, and ethylene glycol diethyl ether diamine. Examples include tetraacetic acid and cyclohexane-1°2-diaminetetraacetic acid.

These aminocarboxylic acids may be blended in the form of acids,
Potassium hydroxide, sodium hydroxide, ammonium hydroxide and monoethanolamine, jetanolamine,
Part or all of the carboxyl groups may be neutralized with diethylethanolamine, morpholine, etc. and then blended as a salt.

The aminocarboxylic acid or its salt as component (C) is blended in the composition in an amount of 0.5 to 20% by weight, preferably 1 to 10% by weight. If this amount is less than 0.5 wt%, the cleaning power will be insufficient; on the other hand, if it is more than 20 wt%,
No significant effect was observed.

As the alkaline substance of component (D), potassium hydroxide,
Alkali hydroxides such as sodium hydroxide, silicates, carbonates, phosphates, etc. are used.

This blending amount is 0.1 to 15 νt%, preferably 0.5
-10 wt%, and if this amount is less than 0.1 wt%, the ability to saponify and remove denatured oil is weak, and even if the amount exceeds 15 wt%, no further significant improvement in effect will be observed.

The uninvented liquid cleaning composition has the above (A), (B),
It is obtained by blending components (C) and (D) as essential components, but optional components can be further blended as necessary.

Examples of these optional ingredients include Hydro-1 rope agents, bactericides, preservatives, fungicides, pigments, fragrances, and ultraviolet absorbers.

Summary of the Invention - According to the liquid cleaning composition of the present invention, (A) a surfactant, (B) a specific solvent, (C) a specific aminocarboxylic acid or a salt thereof, and (D) an alkali. By combining these ingredients, these ingredients work synergistically to quickly decompose fatty acid metal salts, which are the main components of stubborn oil stains in kitchens and scale stains in bathrooms, and remove the coating. A liquid cleaning composition that can reduce the adhesion of dirt and grime to laundry, exhibits extremely excellent cleaning effects on oil stains and scale stains, and is widely used for cleaning stains in the home. can.

Hereinafter, the effects of the present invention will be explained in more detail with reference to Examples, but first, a method for evaluating the cleaning composition in the Examples will be described.

(1) Cleaning power for altered oil stains (i) Type of stain 1 After heating salad oil at high temperature for a long time to make it viscous and applying it to the plywood and leaving it indoors for a long time, the oil turns into a yellowish brown resin. The resulting material was used as a stain board. After applying the liquid detergent, a load of 500 g was applied to the cotton knitted fabric and the cloth was moved back and forth 10 times, and the state of stains was visually judged according to the following criteria.

5 points: Good stain removal: 4 points: Stain removal: 3 points: Stain removal is somewhat good: 2 points: Stain removal is uneven: 2 points: Slight removal of stains: 1 point: Dirt is hardly removed (]i) Type of stain 2: Vegetable oil and carbon black in a weight ratio of 100/2 was evenly applied to the iron plate, and then 170
A stain board was obtained by firing at a temperature of ~200°C for 40 to 60 minutes. After applying a liquid detergent to the cloth, a load of 500 g was applied to the cotton knitted cloth and the cloth was moved back and forth 10 times, and the state of stains was visually judged according to the following criteria.

5 points Good dirt removal 4 points Stain removal is somewhat good 3 points / Stain removal is uneven 2 points Slight dirt removal 1 point Almost no dirt removed (2) Detergent power for scale stains Bath that cannot be easily removed by rubbing Sprinkle cleaning solution (undiluted solution) on the scale stains (used for one month) on the tub (made of polypropylene), rub the tub surface 10 times with a sponge (made of urethane) under a load of approximately 500g, and visually judge the state of dirt removal. .

5 points, good stain removal 4 points, stain removal 3 points Slightly good stain removal 2 points Uneven stain removal 1 point Slight stain removal 1 point, almost no stain removal Example 1 Liquid cleaning composition shown in Table 1 was prepared and the effect of adding the essential components of the present invention was investigated. The results are shown in the same table.

(The following is a blank space) Example 2 Each cleaning composition having the composition shown in Table 2 was prepared, and the detergency against degenerated oil stains and scale stains was evaluated. The results are shown in Table-2.

(Leaving space below) Procedural amendment April 25, 1988 Patent Application No. 46383 of 1988 2 Name of the invention Liquid detergent composition 3 Relationship with the person making the amendment Patent applicant Nishikata, Bunkyo-ku, Tokyo 1-15-18 5. Columns 6 of "Claims" and "Detailed Description of the Invention" of the specification to be amended, Contents of the amendment (1) Amend the claims as per Appendix I .

(2) On page 13, line 3 of the Meiji Supplement, "Formula (II) to (■)" is corrected to "Formula 1 (II) to (V)."

(3) The table on page 19 of the same page is corrected as shown in Attachment H.

(4) Table 2 on page 21 of the same page is corrected as shown in Appendix ■.

7. List of attached documents Paper ■～■ At least one copy each Paper I Claims] (A) Surfactant = 0.1 to 20% by weight (B) In the following general formula (I) Solvent represented: 1-20% by weight RO(-(C2H40)m (C3H,,0)n-)R
' (1) [In the formula, R, R', m, and n each represent the following.

R, R': hydrogen or a straight chain or branched alkyl group having 1 to 6 carbon atoms, which may be the same or different.

m, n: 07m-0~4, n=o~4, m+n''1~6 (However, when the number of carbon atoms in R + the number of carbon atoms in R' = 1 to 7) ■; m=Q, H = 5~ 25 (However, when both R and R' are hydrogen)] (C) Aminocarboxylic acids or salts thereof represented by the following general formulas (II) to (V); 0.5 to 20 weight [Formula (n)
~(V), A and B represent the following.

A Knee CH2C0OH or 102'84COOHB
Knee CI+□C0OH, -C2H401(, -C2H4
N(CH2COOH)2 or -C284N(CH2C0011)'C2H,N(CH
2COOH); (D) A liquid cleaning composition characterized by containing 0.1 to 15% by weight of an alkaline substance selected from inorganic alkalis.

Claims (1)

[Claims] 1. (A) Surfactant: 0.1 to 20% by weight (B) Solvent represented by the following general formula (I): 1 to % by weight ▲ Numerical formula, chemical formula, table, etc. ▼(I) [In the formula, R, R', m, and n each represent the following. R, R': Hydrogen or a straight chain or branched alkyl group having 1 to 6 carbon atoms, which may be the same or different. m, n: [1]; m=0-4, n=0-4, m+n=1
~6 (However, when the number of carbon atoms in R + the number of carbon atoms in R' = 1 to 7) [2]; m = 0, n = 5 to 25 (However, when both R and R' are hydrogen)] (C ) Aminocarboxylic acids or their salts represented by the following general formulas (II) to (V); 0.5 to 20% by weight ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼...(II) ▲ Numerical formulas, chemical formulas, tables, etc. etc.▼...(III) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(IV) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(V) [Formula (II) ~ (V) ), A and B indicate the following. A: -CH_2COOH or -C_2H_4COOH
B: -CH_2COOH, -C_2H_4OH, -C_
2H_4N(CH_2COOH)_2 or -C_2H_4N(CH_2COOH)C_2H_4N
(CH_2COOH)_2] (D) A liquid cleaning composition characterized by containing 0.1 to 15% by weight of an alkaline substance selected from inorganic alkalis.