JP3411979B2 - Acidic detergent composition - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning composition containing an acidic abrasive for cleaning scales adhering to toilets, bathrooms and outdoors, and dirt containing the same. It is about. In order to remove dirt such as scales, urine stones and scales, it is indispensable to set the acidic condition (acid component) as an absolute condition. A strong abrasive and a surfactant with excellent emulsifying power are combined in this. An object of the present invention is to provide a highly safe cleaning composition which not only exhibits a speedy ability to remove waste materials but also reduces acidic skin irritation and damage to equipment. 2. Description of the Related Art Conventionally used for removing organic dirt including metal compounds such as toilets, bathrooms, rainwater, scales, etc., include inorganic acids such as hydrochloric acid, sulfamic acid and sulfuric acid, oxalic acid and hydroxycarboxylic acid. The water solubility of such organic acids is most widely used. Some surfactants and chelating agents are used in combination with these acidic aqueous solutions, and there are also mixtures containing organic solvents.
It is extremely difficult to remove stubborn scales and accumulated solids. On the other hand, some liquid cleansers have been used in the past, but mainly neutral or alkaline, and those with an acidic side are extremely rare, so that they are not expected to be positively acidic. (Example: JP-A-63-17998) An acidic liquid cleanser having hydrochloric acid is also disclosed (JP-A-48-55905).
Permanent stability cannot be expected, and organic acids with high safety that are limited to mineral acids such as hydrochloric acid and sulfuric acid are exceptional and extremely limited. Furthermore, there is a method in which a water-insoluble polishing substance is loaded under acidic conditions by using a combination of xanthan gum or a carboxyvinyl polymer surfactant and a polyhydric alcohol, but the workability under acidic conditions and long-term stability remain unreliable and the efficiency is increased. Or the need to select an acidic substance. [0003] The present invention relates to a toilet,
The purpose is to remove as much as possible and surely complex waste such as bathtubs and other scales that accumulate in rainwater. That is, there are some conventional problems. (1) There are advantages and disadvantages to removing dirt from any strong acidic substance. (For example, fluorides and sulfides cause damage to equipment and facilities and cause large environmental pollution.) (2) Among abrasives, those with high hardness (for example, diamond or sapphire) are considered to be stain-removing and damaged. Is difficult. (3) acidic substances, polishing substances, organic solvents, chelating substances,
Mixing of one or more kinds of emulsifiers, enzymes and the like is difficult to be compatible, and the stability over time and the product characteristics remain uneasy. (4) There is a combination of an acidic substance and a polishing substance, but it lacks long-term stability and workability during production. According to the present invention, an extremely stable and strong acidic cleaning composition can be obtained by using only a specific surfactant combination. [0004] The present invention relates to sodium, potassium, ammonium and ethanolamine salts selected from alpha olefin sulfonate, alkane sulfonate and linear alkylbenzene sulfonate as anionic surfactants together with various acidic substances. At least one of them is polyoxyethylene ethanolamide (EO:
2-5 mol), and 2 of dimethylamine oxide
Most acidic substances are water-insoluble under the setting of pH 3 or less by blending a kind of nonionic surfactant with the former (anion) 1 in the ratio of 1.3 to 3.5 weight ratio of the latter. It was possible to carry the abrasive (suspension). AOS, SA as anionic surfactant
At least one selected from the group consisting of S and LAS has a high acid stability (sulfonic acid type) and a good biodegradability, and is a common main component. This component includes polyoxyethylene (2 to 5 mol of EO), ethanolamide fatty acid (C _{10 to} C
₁₈ ) The stability is turbulent. Conventionally, for example, JP-A-63-17
According to 998, it is said that a high molecular weight EO of polyoxyethylene alkyl ether or polyoxyethylene fatty acid ester having a high molar ratio (40 ~) is better in the same type of composition. Polyoxyethylene alkanolamide (POE) of the invention
The point is that it does not change under strong mineral acids (Hcl, Hno ₃ , Hf). In addition, it was found that the number of moles of EO was limited to a maximum of about 10 moles, and particularly that 2 to 5 moles of the present invention exhibited a suspension thixotropic effect. Also, an amine oxide (AO) is required as the third component, which is preferably a dimethylalkyl type, and the alkyl is C ₁₀ -C ₁₈ (decyl-oleyl).
It is also known to be preferable, and it is also known that it is originally extremely stable under acidic, alkaline and oxidizing properties. A combination of these is used (1) LAS / AOS / SAS is 3 to 20% by weight (2 ) POE is 2 to 10% by weight (3) AO is 2 to 20% by weight and the total surfactant is 5 to 20% by weight The composition combining the above anion and non-ion is particularly excellent. . Water-insoluble abrasives are often 2
0 to 60% by weight can be used, and the pseudoviscosity is 150.
0 to 5000 cp (60 rpm under a B-type viscometer) will be set. In this composition, acidic substances, abrasives and surfactants form a kind of thixotropic suspension (suspended liquid) to decompose and remove scales, urine stones, calcium compounds and other water-based dirt components. be able to. In addition, there is a sub-effect that can alleviate the irritating odor and volatile components peculiar to acidic substances and improve workability. Acidic substances that can be used in the present invention include inorganic hydrochloric acid, sulfamic acid, acidic sodium sulfate, sulfuric acid, nitric acid, acidic sodium fluoride, ammonium ammonium fluoride, ammonium chloride, phosphoric acid, organic oxalic acid, propionic acid, and hydroxyacetic acid. , Formic acid, malic acid, citric acid,
One or more of maleic acid, succinic acid, tartaric acid, gluconic acid, pyrrolidonecarboxylic acid, lactic acid, valeric acid, glutaric acid, alkylbenzenesulfonic acid, phenylacetic acid and the like can be contained. Although the quantity varies depending on the acidity, it is generally about 3 to 15% by weight. In addition, water-insoluble abrasives have high stability in an acidic state,
Examples thereof include silica, alumina, silicate-based minerals, quartz sand, plastic powder, and wood shell powder. Its content is 20-70% by weight, typically 30-60% by weight
suitable. Particle size less than 100 microns, preferably 70
Submicron (0.1 micron) is desirable. The acidic cleaning composition of the present invention comprises an acidic substance, three kinds of surfactants and a water-insoluble polishing substance supported in a stable aqueous acidic state. Certain surfactants, chelating agents, wetting agents, organic solvents and the like can be added. The following is a description of a typical embodiment of the present invention. Example 1 Several practical tests were performed on the prototypes shown in Table 1. (1) Use test (2) Stability (storage) (3) Smell and tactile monitor 5 people Direct olfaction test and tactile sensation (hand feel)
And the total score was scored in the next four stages of evaluation points. Example 2 The following formulations of the present invention were compared with those of a conventionally disclosed formulation, and the results were investigated. [Effects of the Invention] As described above, the composition of the present invention (1) has a better balance than any of the conventional products. it can. (2) All components can maintain physical and chemical stability for a long period of time even under strong acidity (pH 2 or less). (3) Viscosity (average 800 to 2000c) that saves as much as possible the odor and stimulus (primary stimulus) peculiar to acidity and is easy to use
p... 20 ° C.). (4) There is an effect (aftercare treatment effect) that does not affect the equipment used as much as possible. (5) A highly biodegradable fatty acid-based surfactant that is safe for the water environment is an essential component. (6) Both manufacturing work (product process) and cleaning work
Various effects such as simple and simple processing can be achieved.

Continued on the front page (51) Int.Cl. ⁷ Identification code FI C11D 3/14 C11D 3/14 3/20 3/20

Claims (1)

(57) Claims: 1. A with acidic substances (1) alkylsulfonate _{^{(C 12 ~C 15) (Na}} +, K +, NH4 +) Al
Pfaolefin sulfonate , (Na ⁺ , K ⁺ , NH
⁴⁺ ) and linear alkyl benzene sulfonates (Na,
Anionic surfactants selected from K ⁺ and NH 4 ⁺ are 3 to
20 wt% (2) Polyoxyethylene (EO: 2 to 5 moles) fatty acid _(C 12 _{-C 16)} ethanolamide is from 2 to 10% by weight (3) monoalkyl _(C 12 _{-C 18)} dimethyl amine oxides (4) p containing 20 to 70% by weight of a water-insoluble abrasive substance
An acidic detergent composition wherein H is adjusted to 3 or less .