JPH03111494A - liquid cleaning composition - Google Patents

Abstract

PURPOSE:To obtain a liquid detergent composition which is weakly acidic, highly viscous and stable, and therefore suited for use as a detergent for cleaning a bath tub or a toilet bowl by blending hydrogen peroxide, an anionic surfactant and an amphoteric surfactant, and adjusting the pH and viscosity of the blend each to a specific value. CONSTITUTION:0.5wt.% hydrogen peroxide; 0.01 to 10wt.% anionic surfactant which exhibits good stability in a (weakly) acidic region and consists preferably of a 10-18C linear and/or branched alkanesulfonate; 0.01 to 10wt.% amphoteric surfactant which consists preferably of a betaine-type amphoteric activator containing a 10-18C alkyl group or an aliphatic acid residue; optionally, a stabilizer for the hydrogen peroxide, a coloring agent, a perfume and a detergency improver; and water are blended in such a manner that the weight ratio of the anionic surfactant to the amphoteric surfactant will be 10-75/90-25 to thereby obtain a liquid detergent composition having a pH or 2 to 6 and a viscosity of not less than 10cp.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a thickened liquid cleaning composition that can prevent dripping, especially when applied to a vertical surface, and is suitable for cleaning bathrooms, toilets, etc. The present invention relates to a cleaning composition that can be suitably used for.

[Conventional technology]

In the prior art, there are few methods to increase the viscosity of compositions containing hydrogen peroxide as a main component. As a thickening method (i) Sagarin, e
d.Cosmetics 5science andT
Technology 2, p. 319 exemplifies the use of methylcellulose as a thickener, but this method has the disadvantage that the viscosity decreases significantly over time.

(ii) Gus, s, Kass Am, Per
fumer & aromatics.

In 1956, the use of fatty acid alkanolamine in an amount of 5 to 10% was exemplified in D-25, but it has the drawbacks of using a large amount and of clouding and separation when used as a cleaning agent.

(iii) JP-A No. 55-49308 exemplifies the use of 7 to 5 Qwt% of a compound obtained by adding propylene oxide and then ethylene oxide to propylene glycol (oxyethylene groups account for 30 to 90% of the average molecular weight). However, it has the disadvantage that a large amount of thickening base must be used.

On the other hand, as a thickening method for alkaline compositions containing hypochlorous acid, the combination of amine oxide and soap is known as a thickening base; No viscous effect was observed.

[Problem to be solved by the invention]

An object of the present invention is to provide a liquid cleaning composition that is acidic or weakly acidic, stable in the presence of hydrogen peroxide, and has a high viscosity.

[Means to solve the problem]

The present invention was based on the finding that when an anionic surfactant and an amphoteric surfactant are used together in the presence of hydrogen peroxide, the liquid becomes thicker and a liquid cleaning composition with excellent stability at low temperatures can be obtained. It was done based on this.

That is, the present invention contains hydrogen peroxide, an anionic surfactant, and an amphoteric surfactant, has a pH of 2 to 6, and a viscosity of t.
Provided is a liquid detergent composition characterized in that it has an ocp or higher.

In the present invention, hydrogen peroxide is 0.5
It is preferably from 1 to 10% by weight (hereinafter abbreviated as %), and more preferably from 1 to 5%.

The anionic surfactant is preferably one that is stable in the acidic to weakly acidic range, such as alkyldiphenyl ether disulfonate, alkylbenzene sulfonate,
Alkanesulfonate, alkylphenol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether sulfate sulfo;r,
-(NES-D), polyoxyethylene alkyl ether sulfate, etc., or a mixture of two or more thereof. Particularly preferred are alkanesulfonates which have a high synergistic effect with the amphoteric active agent, particularly C,O-18 linear and/or branched alkanesulfonates. Suitable examples of these anionic surfactants include sodium, potassium, and ammonium salts.

Amphoteric activators are classified according to the anion moiety:
Examples include carboxylic acid type, sulfuric acid ester type, sulfonic acid type, and phosphoric acid ester type. In particular, carboxylic acid type surfactants which have a high synergistic effect with anionic surfactants are preferred, and betaine type amphoteric surfactants having a c-, o-18 alkyl group or fatty acid residue are more preferred.

The anionic surfactant is 0.01 to 10% in the composition,
Preferably 0.05-5%, particularly preferably 0.1-4%
It is best to contain 0.01 to 1% of amphoteric surfactants.
0%, preferably 0.05-5%, particularly preferably 0.0%.
The content is preferably 1 to 4%.

Further, the weight ratio of anionic activator/ampholytic activator is preferably 10/90 to 75/25 in order to effectively express the thickening effect.

The present invention requires the above-mentioned components, and due to the thickening effect of the combined use of an anionic surfactant and an amphoteric surfactant, the viscosity (at 25° C.) of the composition is 10 cp or more, preferably 25 to 1.
000 cp, particularly preferably from 80 to 500 cp. Incidentally, the pH of the composition can be adjusted by a conventional method using an inorganic acid, an organic acid, or the like.

The liquid cleaning agent of the present invention further includes a hydrogen peroxide stabilizer, a coloring agent, a fragrance component, and a chelating agent such as a phosphonic acid group-containing compound, a hydroxy polycarboxylic acid or a salt thereof as a detergency improver, Organic acids, inorganic acids, etc. can be optionally added.

〔Effect of the invention〕

According to the present invention, in the coexistence of acidity and hydrogen peroxide,
By using an anionic activator and an amphoteric activator together, it is possible to increase the viscosity, so when used on vertical surfaces such as bathroom walls and toilets, there is less liquid sway, and the detergent liquid can be used effectively and economically. I can do it.

Therefore, the liquid cleaning composition of the present invention can be suitably used not only as a regular cleaning agent but also as a sanitary cleaning agent for bathrooms, toilets, and the like.

Next, the present invention will be explained with reference to examples.

〔Example〕

Example 1 3% hydrogen peroxide, 2.5% tartaric acid, 0.1% 1-hydroxyethane-1,1-diphosphonic acid, surfactant or thickener (listed in Table 1) 0.5-5 %, the balance being water, and the pH was adjusted to 4 with sodium hydroxide.The low temperature stability and viscosity were measured. Table summarized with
Shown in 1.

Low temperature stability and viscosity were determined by the following methods.

Evaluation of low-temperature stability The composition was left in a constant temperature bath at -7°C for one week, and its appearance was visually evaluated according to the following criteria.

○: Uniform and transparent △: Slightly cloudy ×: White turbidity or precipitation of crystals Measurement of viscosity ■Measurement was performed using a BL type viscometer manufactured by Tokyo Keiki at 25° C. and a rotor rotation speed of 60.

The following surfactants and thickeners were used in the table.

CH3 R-C-Nll-CH2CH2-N-CH2CODCH
0 (R Nidiadialkyl) CH3C,2)12. cONHcH2[:H2['H2N”C
H2COO- CH3 [JM14 [1 person]

Claims (2)

[Claims] (1) A liquid cleaning composition containing hydrogen peroxide, an anionic surfactant, and an amphoteric surfactant, having a pH of 2 to 6 and a viscosity of 10 cp or more. (2) The cleaning composition according to claim 1, wherein the anionic surfactant is a linear and/or branched alkanesulfonate of C_1_0 to_1_8.