JPH02181000A - Two-component cleaner composition - Google Patents

Abstract

PURPOSE:To prepare a two-component cleaner compsn. with which a ceiling or wall soiled with nicotine, tar, etc., of tobacco is cleaned uniformly by combining a liq. component contg., each in a specified concn., H2O2 and a storage- stabilizer comprising an inorg. or org. acid with another liq. component contg., in a specified concn., NH3 as a decomposition accelerator of H2O2. CONSTITUTION:A two-component cleaner compsn. consists of a liq. component which contains 0.01-30wt.% H2O2 and an inorg. or org. acid as a storage- stabilizer and another liq. component which contains 0.1-20wt.% NH3. Said two components are properly mixed in the use so that the mixture is alkaline, pref. its pH is 10.0-11.0, and the concn. of H2O2 in it is 0.1-4.0wt.%. After cleaning is completed, the mixture becomes neutral as NH3 vaporizes.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a cleaning agent for easily cleaning objects to be cleaned to which tobacco nicotine and tar are attached.

(Conventional technology) Conventionally, when cleaning cigarette nicotine and tar stains, which are the main components of stains on indoor ceilings, walls, and fixtures and fittings, surfactants, alkali builders, solvents, etc. are used as the main ingredients. The method used has been to use a cleaning agent to wipe off the dirt on the surface.

(Problem to be solved by the invention) In recent years, various interior materials have become highly sophisticated and diversified.

Porous materials such as sound-absorbing boards are used for ceilings, fiber materials are used for walls, wooden products that make use of the wood grain are used, and materials are diversifying, such as natural stone and ceramic products. There is something eye-catching about it. The floor surfaces behind these objects can be easily cleaned by using general cleaning agents, but when it comes to ceilings and walls, conventional cleaning methods may not always have a satisfactory effect. was not obtained. For example, when cleaning the upper part of the ceiling, the main components of dirt, such as nicotine and tar, are not evenly deposited on the ceiling, and are generally deposited around ducts and ventilation fans, even when wiped with conventional cleaning agents. In many cases, the dirt was spread around the area, leaving the area unsightly than before cleaning.

＼Also, with conventional cleaning agents, the cleaning action is emulsifying power.

Since the dispersing power and dissolving power are the main factors, the degree of dirt removal varies depending on the strength of the scrubbing force during cleaning and wiping operations, making it extremely difficult to achieve a uniform wash finish.
Required skilled technique.

Furthermore, the worker must always face upwards during the cleaning process, and it can be easily estimated that the physical fatigue involved is considerable.

The same goes for walls, which are vertical surfaces, so even if you use a conventional cleaning agent, the cleaning agent will take different action on the upper and lower parts of the wall, and like the ceiling, dirt will not adhere evenly. It has been extremely difficult to achieve a uniform finish due to the lack of cleanliness and differences in the strength of the scrubbing force during cleaning or wiping.

In addition, among the interior materials used in recent years, especially
It is generally said that it is impossible to clean items made of fibrous or porous materials, as cleaning them using conventional cleaning agents can cause ring stains or mottling. was.

For these reasons, ceilings and walls were often repainted or reapplied with interior materials rather than cleaned. Needless to say, the costs involved are enormous.

[Structure of the Invention (Means for Solving the Problem) The present inventors have devised a method to easily and uniformly clean interior materials such as ceilings and walls that are difficult to clean using conventional techniques. As a result of intensive research aimed at this purpose, we found that a solution A containing from 0 to 30% by weight of hydrogen peroxide containing one or more organic acids or inorganic acids as a storage stabilizer;
Ammonia is used as a hydrogen peroxide decomposition accelerator at 0.1 to 20
A two-component detergent composition made by properly mixing Part B containing 50% sulfuric acid to make it alkaline during use has a strong bleaching effect on nicotine and tar, and ammonia quickly evaporates after washing is completed. Therefore, it was discovered that the object to be cleaned can be easily and uniformly cleaned without damaging it, and the present invention was created.

(Function) Dirt on the walls and ceilings of general office cafeterias, meetings rooms, cars, etc. is caused by inorganic stains such as dirt, mud, and clothing.

There are fibrous stains from carpets, etc., but these stains can be easily removed by dusting.

However, nicotine and tar stains penetrate deeply into the materials of walls and ceilings and adhere firmly, making them difficult to remove easily. The inventors have found that hydrogen peroxide has a very good bleaching effect on nicotine and tar stains.

However, hydrogen peroxide solutions containing hydrogen peroxide have poor storage stability, and for this reason, manufacturers of hydrogen peroxide solutions mix inorganic acids or organic acids as stabilizers before shipping.

These hydrogen peroxide solutions can be diluted, mixed with surfactants and solvents as needed, and sprayed onto the surface to be cleaned, but the non-volatile stabilizer acids concentrate and remain when drying. , damaging the material. In the present invention, during use, a specified amount of liquid A containing 0.1 to 20% by weight of hydrogen peroxide is mixed with liquid B containing ammonia, so that t) H of the mixture of both liquids becomes alkaline. The feature is that the amount is adjusted accordingly. When hydrogen peroxide water becomes alkaline, its storage stability deteriorates and it releases nascent oxygen, which strongly bleaches nicotine and tar. Due to these actions, the reaction proceeds quickly, and hydrogen peroxide is converted to oxygen and water, and ammonia is converted to acids and salts as a stabilizer for the hydrogen peroxide in liquid A. Note that free ammonia easily evaporates, so it does not damage the surface to be cleaned.

Table 1 shows the results of measuring the bleaching effect time for aqueous solutions of nicotine and tar extracted from cigarette filters.

Table 1 Sample solution 2 A portion of the filter from 200 Mild Sevens manufactured by Japan Tobacco Inc. was extracted with 500 ml of distilled water and concentrated to 200 d.Test method: 100rIIf! Sample solution 5 in beaker
Add 50 d of test solution to 0 d, and measure the time until the color of the sample solution becomes the same as the color of the 10-fold dilution of the sample solution.

As is clear from the results in Table 1, the bleaching effect becomes significantly stronger when the hydrogen peroxide solution is made alkaline.

In addition, widely used chlorine bleaches (e.g., sodium hypochlorite, etc.) have strong bleaching blades, but
Because it contains strong alkaline substances such as sodium hydroxide and potassium hydroxide as a stabilizer, and because these strong alkaline substances are non-volatile, they remain on the surface to be cleaned as a dry residue and cause significant damage to the surface to be cleaned. let Furthermore, sodium hypochlorite strongly bleaches nicotine and tar, but
It also bleaches the dye contained in the substance to be cleaned.

Table 2 shows the decolorization test results for red cotton interior wall cloth.

Table-2 Test piece: Cut a red cotton wall cloth into 50m x 50m.

Test method: 20 (7!) Pour test solution 2007 into a beaker and add a test piece for 3 hours. Leave at room temperature for 5 hours, wash with water, and then dry.

Determine the degree of discoloration with the naked eye.

From the results in Table 2, it can be said that sodium hypochlorite is not appropriate for this purpose. In addition, it is a well-known fact that sodium hypochlorite is highly irritating to the human body and can cause significant damage if it comes into contact with the eyes or skin, as has been published in many publications. Needless to say.

According to the present invention, after lightly dusting the walls and ceiling surfaces, there is no need to wipe them off by simply spraying the alkaline mixed solution of A and B together with a hand sprayer, mist sprayer, etc. It is possible to almost completely and uniformly restore the surface to be cleaned to its original beauty.

It is not desirable to add other cleaning aids to liquid A containing hydrogen peroxide in the composition, as there is a risk that organic substances etc. may be oxidized by the hydrogen peroxide in the composition. However, for liquid B, whose main component is ammonia, in order to increase penetration power, emulsifying power, dispersion power, anionic surfactant, nonionic surfactant, amphoteric surfactant, cationic surfactant, etc. Contains surfactants such as surfactants, or contains enzymes.

The detergency of the present invention can be enhanced by incorporating fluorescent dyes, rust preventives, solvents, etc.

Further, the concentration of hydrogen peroxide in the present invention is 0.0 at the time of use.
It is desirable to use it in a range of 1 to 4.0% by weight, preferably 0.1 to 2.0% by weight.

Furthermore, the pH of the mixture of liquids A and B is 10.0 to 11. It is desirable that the range is 0.

(Example) Table 3 shows the formulation of Examples according to the present invention and Control Examples, as well as the cleaning efficiency and finish level using commercially available weak alkaline detergents.

(Leaving space below) Table 3 Cleaning power test method ■Test location: Office in Shibuya Ward, where the ceiling and walls have never been cleaned or repainted in the 10 years since construction.

■Test method: Lightly dust the walls and ceiling. Divide each sample into 2m x 3m sections and use 100C of cleaning solution per 1'rIt.
Using C, Examples 1, 2, 3, 4 and Control Example 1 were cleaned only by spraying, and Control Example 2 was cleaned by a normal cleaning method.

Cleaning power evaluation method: Cleaning performance was determined visually after leaving the product for 3 hours after completion of work.

Note-1) Sanyo Chemical Industries ■Noniporunft*- Cleaning power (Large)
Cleaning power (low) Finish evaluation method: After cleaning, it was visually judged whether the dirt on the walls and ceiling was evenly removed.

Workability evaluation test: The time (minutes) required to treat a ceiling and wall with an area of 2TrLx3m was displayed.

pH of the surface to be cleaned after one day: Water was sprayed on the surface to be cleaned, and an alcohol solution of phenolphthalein was applied to the surface to see if it was colored.

As is clear from the comparative test in this example, the composition of the present invention was found to have clearly superior effects compared to the commercially available weakly alkaline detergents of Control Example-1 and Control Example-2, which do not contain ammonia. .

[Effects of the Invention] The two-component cleaning composition of the present invention has excellent cleaning power and can easily restore the beauty of the surface to be cleaned without damaging it.

It goes without saying that the present invention can also be applied to the interior of vehicles, curtains, curtains of various stages that are extremely difficult to clean, jump rears, etc., regardless of the office.

Claims (1)

[Claims] A solution containing 0.01 to 30% by weight of hydrogen peroxide containing one or more organic acids or inorganic acids as a storage stabilizer, and 0.1 to 30% of ammonia as a hydrogen peroxide decomposition accelerator.
A two-component cleaning composition characterized by being alkaline when using agent B containing 20% by weight, and becoming neutral after cleaning by volatilizing ammonia.