JP3000547B2 - Architectural wash protectant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an architectural cleaning and protecting agent which can clean and protect dirt on a metal exterior material of a building by applying one solution without pollution.

Another aspect of the present invention is a method for cleaning and protecting building materials, which industrially realizes simplification, non-pollution, efficiency and safety of a cleaning operation by using the architectural cleaning protective agent of the present invention. About.

[0003]

[Prior art]

<Metal exterior materials for buildings> Buildings (especially high-rise steel-framed buildings) are subject to requests from structures, designs, appearances, etc.
In many cases, the outside is formed by a metal exterior material of a building (metal exterior material). For example, the metal exterior material is
Metal curtain wall materials, fittings (typically, sashes), fittings for fittings, and the like.

[0004] Although "carten wall" is originally a term meaning a non-bearing outer wall of a middle- and high-rise building, it is also generally used in the meaning of an outer wall product that is manufactured and attached on site. Used in In this specification,
The term "curtain wall" is used in the latter sense. The metal curtain wall material is a metal panel material forming the curtain wall.

[0005] The metal exterior material of the building is a steel (steel) material, a stainless steel material, an aluminum material, an aluminum alloy material, a zinc material, and the like. Aluminum materials and aluminum alloy materials are used in large quantities because of good workability and the like.

[0006] In the following, the term "aluminum lumber" is used to mean an aluminum alloy lumber unless otherwise specified.

[0007] Metal exterior materials for construction are generally finished with a surface to improve durability. In the case of aluminum materials, the surface of the metal exterior material is an anodized film (aluminum oxide film) and a painted composite film. Or a chemical film is applied.

The anodic oxide film has a large number of fine holes formed on the surface and has low corrosion resistance. Therefore, a material obtained by sealing (sealing treatment) the fine holes by utilizing a hydration reaction (anodized) is industrially used. Are often used.

However, since the alumite film is also corroded by NOx, SOX, acid rain and the like in the atmosphere,
In many cases, a protective paint is applied on an alumite film and used. <Washing of building exterior materials> Metal exterior materials of buildings are exposed to the atmosphere, so that acid rain, soot, exhaust gas components, dust, mold, moss,
In general, the appearance is impaired in a short time due to the attachment of polluting substances such as oily substances, tar substances and rust, and black spot-like stains and pitting corrosion generally occur even when the alumite film is treated.

[0010] Therefore, metal exterior materials for buildings (particularly, buildings in urban areas) require regular cleaning, and a necessary number of cleaning times and a cleaning method have been proposed.

Table 6 shows cleaning plans proposed for aluminum sashes and aluminum curtain walls and based on actual observations (edited by Jiro Ohara, Katsuyoshi Imaizumi, Hidetaka Uno: "Architectural Interiors") Technical Handbook, Asakura Shoten Co., Ltd., published in 1984, p. 457).

[0012]

[Table 6] Table 6 shows the number of washings proposed for the aluminum alloy sashes based on actual observations (edited by the Editorial Board of the Construction Work Method Dictionary: "Building Work Method Dictionary", Industrial Research Institute Encyclopedia Publishing Center, 1989). Yearly publication, see p422).

[0013]

[Table 7] The values in Tables 6 and 7 are based on independent observations. In the galvanized steel sheet of the building exterior, the dense rust thin film (composition of zinc oxide and zinc hydroxide) generated on the surface functions as a protective film for corrosion prevention, but the protective film is also exposed to the atmosphere to oxidize and Corrosion progresses.

Table 8 shows the results of actual observations on the consumption of galvanized steel sheets used for buildings (edited by the Editorial Board of the Building Construction Law: "Built-in Building Construction Law", Industrial Research Institute, Inc.). Encyclopedia Publishing Center, published in 1989, p638).

[0015]

[Table 8] <Cleaning Method of Architectural Metal Exterior Material> As for cleaning of the metal exterior material of a building, a cleaning method corresponding to the cleaning plan in Table 6 has been proposed. ”Industry Research Encyclopedia Publishing Center, 1
989, p. 422).

However, in today's urban areas (especially in large urban areas)
For the contamination of metal exterior materials of middle and high-rise buildings in
In some cases, dirt removal may not be sufficient depending on a conventionally proposed cleaning method, and cleaning and repair are performed by the following methods (a) to (e). (A) A washing method is performed in which a neutral detergent diluted to an appropriate concentration is applied to a target portion using a cloth or a sponge, and the target portion is polished with a nylon polishing pad or water-resistant paper and then wiped with water. . (B) A washing method in which the neutral detergent (a) is replaced with an alkaline detergent has been performed. As the alkaline detergent, a weak alkaline detergent or a product obtained by diluting a strong alkaline detergent using caustic soda or the like is used. (C) A washing method in which the neutral detergent (a) is replaced with a strong acidic detergent. As the strong acidic detergent, a detergent containing acidic ammonium fluoride or phosphoric acid is used. (D) In some cases, a washing method using a large amount of water for washing is performed. (E) Repair after cleaning is generally performed by applying a clear lacquer to the cleaned portion. <Conventional proposals for building cleaning> Very few proposals have been made regarding building cleaning methods and cleaning methods.
Moreover, no proposal was made at a practically usable level.

That is, in the prior art, only a small number of proposals have been made for a method of using the impact energy at the time of rupture of carbon dioxide gas bubbles for cleaning and a method of temporarily using a water-soluble protective coating (Japanese Unexamined Patent Publication (Kokai) No. Heisei (Kokai) No. HEI 9-163568). 08-229435, JP-A-08-257515, JP-A-08-2
76165, JP-A-09-075877).

The cleaning method utilizing carbon dioxide gas bubble burst includes a method in which carbon dioxide gas bubbles are mixed with a surfactant-containing liquid and sprayed, and a method in which the surfactant and the hydrogen carbonate are adjusted to pH 6.0 to 9.0. This is a method of spraying a liquid (Japanese Unexamined Patent Publication No.
See JP-A-57515 and JP-A-08-276165.

In the cleaning method using a water-soluble protective paint temporarily, a water-soluble paint is applied to a spot of a building to adsorb the soil of the building to a coating film formed, and then the soil is removed. This is a method of washing away a water-soluble coating film (JP-A-09-075).
877). However, regarding this proposal, the effect of removing dirt is unknown because the specific disclosure of the invention is poor.

A cleaning method using a strong acid aqueous solution containing hydrofluoric acid has been proposed for buildings with particularly heavy dirt (see Japanese Patent Application Laid-Open No. 52-74604). Is a hazardous material that can only be handled by the person responsible for handling poisonous substances, and generally cannot be handled.

[0021]

The conventional cleaning method for building metal exterior materials has caused various problems represented by the following (a) to (f). (A) In the conventional cleaning method using a neutral detergent, the detergent is scattered around in the washing and subsequent polishing work, and the cleaning power of the neutral detergent is insufficient, so that the nylon polishing pad and the water-resistant paper are used. Therefore, there has been a problem that the surface of the metal exterior material is easily scratched due to excessive polishing. (B) The conventional cleaning method using a neutral detergent has a problem that the cleaning effect is extremely inadequate against severe dirt on metal exterior materials of today's urban buildings. . (C) The conventional cleaning method using a strong acid detergent has a problem in that the strong acid detergent scatters around and poses a danger to both workers and passersby at the time of cleaning. There was a problem that it was easy to proceed. (D) The conventional cleaning method using an alkaline detergent has a problem in that the surface of an aluminum exterior material, which occupies most of the building exterior material, is melted. (E) The repair method by clear lacquer coating is such that contaminants in the air easily adhere to the clear lacquer coating film, and
There has been a problem that some clear lacquer coatings are not sufficient to protect the metal exterior material from corrosion. (F) In the improvement of the cleaning method of the metal exterior material, there has been a problem that no effective proposal has been made.

The inventors of the present invention have studied to solve these problems, and found that these problems can be solved by a cleaning protection agent and a cleaning protection method based on an unconventional idea.

Here, the present invention provides the following (i) to
It is an object of the present invention to provide an architectural cleaning protective agent having the features such as (iv). (I) It is an object of the present invention to provide an architectural cleaning protective agent which eliminates the need for a neutral detergent, an alkaline detergent, and an acidic detergent, eliminates the drawbacks associated with their use, and can perform a cleaning operation without pollution. I do. (Ii) Another object of the present invention is to provide an architectural cleaning and protecting agent that removes and protects severe stains generated on metal exterior materials of buildings in large cities by applying one liquid. (Iii) An object of the present invention is to form a protective film on a metal exterior material of a building in a polishing operation after a coating operation, and to perform the next cleaning easily and easily even in a severely polluted environment of a large city. Another object of the present invention is to provide an architectural washing protective agent which enables the following. (Iv) Another object of the present invention is to provide an architectural cleaning / protecting agent that performs work associated with cleaning a building without pollution and that significantly improves the workability related to cleaning and protection.

Further, the present invention provides a building material which makes it possible to perform the work for cleaning and protecting a building in a simple, pollution-free, highly efficient and safe manner even in a severely polluted environment of a large city. The purpose of the present invention is to enable a washing protection method.

[0025]

According to the present invention (the present invention as defined in claim 1), the architectural cleaning protective agent is as follows: (1) It is a solid at room temperature and has a penetration degree (according to JIS K2235).
Containing 0.3 to 25 wax and silicone
And the film component comprising a higher fatty acid consisting of (2) unsaturated acids or saturated acids,
Amino alcohol, alkylamine and morpholine
Of volatile organic compounds consisting of one or more species
The soap component generated by the neutralization reaction with the component (3) comprises an aliphatic hydrocarbon having a boiling point of 130 to 250 ° C.
10 to 35 parts by weight of organic solvent and water (organic solvent)
/ 40 to 70 parts by weight (water) contained in the liquid phase
What is, (4) a liquid phase is 400～60,000Cps (room temperature, B type
(5) Measured by a viscometer).
It is a feature.

Another method for cleaning and protecting building materials according to the present invention (the second aspect of the present invention) is to wash building dirt with a building cleaning protective agent defined below to form a uniform wax film. It is a method of forming a wax film by means.

The architectural cleaning protective agent building cleaning protective agent is at least an organic solvent the wax coating component and soap components, which are contained in a liquid phase of the organic solvent / water system is a distributed system, and soap component Is produced by a neutralization reaction in the liquid phase with a higher fatty acid and an alkali component comprising a volatile organic compound.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION

<The architectural cleaning protective agent according to the present invention> The cleaning protective agent of the present invention is a liquid phase composed of a cleaning component and a wax film component, and produces a strong cleaning effect by the interaction of a plurality of cleaning components. An organic solvent which is one of the cleaning components is used as a medium for forming a wax film.

The washing protective agent of the present invention is typically an organic solvent / water dispersion system in which an organic solvent in which a wax film component and the like are dissolved in water (ie, an emulsion (emulsion)).
Solid / liquid dispersion system in which solid particles such as a wax film are dispersed in the liquid phase (that is, a suspension system).
Are included.

The cleaning protectant of the present invention can wash and remove strong dirt in a building by the solubility of an oily substance contained in an organic solvent, the detergency of water, and the detergency of soap generated by a neutralization reaction in a liquid phase. It is made possible.

The washing protective agent of the present invention is particularly effective when the soap produced in the liquid phase is also effective for emulsification of an organic solvent / water dispersion system. It volatilizes accompanyingly, whereby the emulsifying action of the soap component disappears, and the formation of the wax film and the fixation of the wax film to the object become easy and strong, so that the effects of the present invention can be maximized.

In order to exhibit the cleaning ability and the wax film-forming ability of the cleaning protective agent of the present invention, the organic solvent / water quantitative ratio is, for example, from 10 to 35 parts by weight (preferably 1 part by weight) of the organic solvent.
(5 to 25 parts by weight), a liquid phase of 40 to 70 parts by weight (preferably 50 to 65 parts by weight) of water is desired.

Further, when the washing protective agent of the present invention is in a liquid phase having a viscosity (viscosity) of 400 to 60,000 cps (measured by a B-type viscometer at room temperature), for example, a metal exterior material for building ( In particular, it is possible to prevent sagging even on a vertically-extended metal exterior material) and to apply and form a wax film, so that it is easy to function as a cleaning agent.

When the cleaning protective agent of the present invention is a metal exterior material for buildings, the effect of the present invention can be maximized. When the metal exterior material is, for example, a steel (steel) material, a stainless steel material, an aluminum material, an aluminum alloy material, or a zinc material, the effects of the present invention can be maximized.

The architectural cleansing protectant of the present invention is directly
It is used for cleaning and protecting metal exterior materials that are arranged or attached to a building and fixed to the building. or,
The cleaning protective agent of the present invention can be a target of cleaning protection even for a metal exterior material that is not fixed to a building (for example, a metal exterior material at a factory or a construction site).

Organic solvents are quick-drying and medium-drying organic solvents in view of the function of forming a wax film, and belong to the lower part of the low-boiling region and the lower part of the medium-boiling region.
Those having low odor at ~ 250 ° C are preferred. As the organic solvent, any of a single kind and a plurality of kinds can be used.

Typical organic solvents are, for example, aliphatic hydrocarbons, cycloaliphatic hydrocarbons, and those mainly composed of them (when the amount of the aliphatic hydrocarbons in the organic solvent volume exceeds 50% by volume). .

The aliphatic hydrocarbons include, for example, industrial gasoline, industrial naphtha, mineral spirit and kerosene. Odorless aliphatic hydrocarbons include n-paraffin and iso-paraffin. Soap The soap of the cleaning protectant of the present invention originally has a function as a cleaning agent for building dirt. However, when the soap used in the present invention is a soap which is also effective in emulsifying an organic solvent / water system, the liquid phase of the organic solvent / water system becomes a stable emulsion, and the soap is volatilized. The emulsifying action disappears due to the separation and volatilization of the volatile alkali component, facilitating the formation of the wax film and improving the adhesion of the wax film to the building, thereby maximizing the effects of the present invention.

As the soap, those produced in a liquid phase by a neutralization reaction between higher fatty acids and alkalis of volatile organic compounds are used. Higher fatty acids include, for example, oleic acid, lino-
Unsaturated acid or stearic acid such as luic acid and linolenic acid,
It is a saturated acid such as myristic acid and palmitic acid. When oleic acid or oleic acid is a quantitative main component (amount exceeding 50% by volume: based on the higher fatty acid volume), the performance of soap as an emulsifier is improved and it is suitable for stabilizing a dispersion. Have been found in the present invention.

The alkaline component of the volatile organic compound produces soap having a surface activity effective for emulsifying action of a liquid phase organic solvent / water system. Further, as the alkaline component of the volatile organic compound, those which can be volatilized almost simultaneously with or in the approximate range of the liquid phase water and the organic solvent are suitable.

Representative examples of the alkaline component comprising a volatile organic compound include amino alcohols, alkylamines and morpholines. Amino alcohols include, for example, N, N-dimethylethanolamine, N, N-diethylethanolamine, N, N-diisopropylethanolamine, N, N-dibutylethanolamine and aminopropylpropanol. And so on. Alkylamines are, for example, diethylamine, triethylamine, amylamine and 2-ethylhexylamine. The morpholines are, for example, morpholine, N-methylmorpholine, N-ethylmorpholine and the like. The alkali component can be slightly larger in quantity than the chemical equivalent of the neutralization reaction for soap production.

Typically, when the alkali component is a volatile organic compound having relatively high volatility such as N, N-dimethylethanolamine, N, N-diethylethanolamine or morpholine, It is easy to enjoy the effects of the invention.

The amount of soap is determined so as to maximize the cleaning effect of the entire cleaning protective agent in relation to the cleaning performance of other components (volatile alkaline components, organic solvents and water) involved in the cleaning action of the cleaning protective agent. It can be an effective amount. The amount of the soap can be set to an amount that maximizes the cleaning effect of the entire cleaning protective agent in consideration of the effects of building dirt and environmental conditions (temperature, wind speed, etc.).

The upper limit of the amount of the soap is, for example, 5.0% by weight in relation to the cleaning performance of other components of the cleaning protective agent.
It has been found by the present inventor that even at a level (based on the weight of the cleaning protective agent), a superior cleaning effect can be obtained against severe soiling that occurs in buildings in large cities. Emulsifier The washing protective agent of the present invention is made into an effective emulsion using a soap having an emulsifying action as described above without using an emulsifier. However, in the present invention, when the function and effect of the cleaning protective agent of the present invention are not impaired, it is possible to obtain an emulsion more suitable for the purpose by blending an appropriate emulsifier. Abrasive In the present invention, it is possible to add a polishing function by adding inorganic fine particles serving as an abrasive to the liquid phase. As the inorganic fine particles, particles having a type and a particle size effective for removing fixed matter and corrosion of a building (particularly, a metal exterior material of a building) are used. As the abrasive, for example, any of natural and synthetic inorganic fine particles is used. Natural materials include, for example, emery, garnet, corundum, quartz sand and quartz sand. Synthetic compounds include, for example, alumina oxide such as alundum and γ-alumina, silicon carbide such as carbon random, boron carbide, cerium oxide and zirconium oxide.

As the abrasive, a single kind or a plurality of kinds of inorganic fine particles can be used, and if the abrasive has an average particle size of about 10 to 70 μm (preferably 20 to 50 μm), it can be used for building (particularly, metal exterior for building). Is effective in removing the adhered matter and corrosion of the material.

The amount of the abrasive is 5.0 to 25.0% by weight (based on the weight of the cleaning protective agent), preferably 10 to 22% by weight.

When the upper limit of the amount of the abrasive is larger than that, it is difficult to maintain uniform dispersibility in the dispersion, and when the lower limit is smaller than that, the polishing efficiency is reduced.

When the abrasive is particles having a hardness (old Mohs) of 7 or more (preferably a hardness (old Mohs) of 8 or more), efficient polishing can be performed. It has been found in the present invention. Typically, when the abrasive is alumina oxide-based inorganic fine particles or the like, it has been found that the cleaning protective agent of the present invention is used to have an efficient polishing operation. <Wax film component> The wax film component of the present invention comprises a wax and a component to be blended as required. However, components to be added as necessary include, for example, a silicone for imparting water repellency to the wax film, a fluororesin for imparting a contamination preventing function to the wax film, an antioxidant for preventing the wax film from being oxidized and degraded, and There is an ultraviolet absorber or the like that prevents ultraviolet deterioration of the wax film. Wax Wax has solubility in a heated organic solvent, and even when the cleaning protective agent of the present invention is applied to a surface (particularly, a vertical surface) of a building metal exterior material or the like, wax particles are used. A film that can form a film by fusion and has a performance of protecting the surface of an object is used.

The wax is typically a room temperature solid (solid) wax. However, in order to keep the wax film formed on the building (especially the metal exterior material of the building) in a polluted environment, it is appropriate to use a material that is a solid at room temperature and has a low penetration degree (that is, a high hardness). ing.

The wax has a penetration (JISK2235)
But not more than 25, preferably not more than 10, particularly preferably 5
The following are suitable: The lower limit of penetration is 0.
A value of 3 is practically sufficient.

The wax may be either a natural wax or a synthetic wax, and either a single wax or a plurality of waxes can be used. As the wax, a plurality of waxes of the same type (for example, carnauba waxes having different hardness) may be used, or a plurality of different types of waxes (for example, carnauba wax and wood wax) may be used.

Specific examples of the wax include carnauba wax, candelilla wax, rice wax, wood wax, beeswax, montan wax, ozokerite, paraffin wax, microcrystalline wax, petrotam, and other natural waxes, and synthetic carnauba wax. , Montan wax derivatives, paraffin wax derivatives and microcrystalline wax derivatives.

When carnauba wax or carnauba wax is quantitatively mainly (when carnauba wax accounts for more than 50% by weight of the wax weight), it is easy to form a uniform wax film on a metal exterior material of a building. It has been found in the present invention that the formed wax film is also robust and can maintain its performance in a contaminated environment.

The amount of wax in the liquid phase is such that a wax film can be formed on a building (particularly a metal exterior material of a building) by volatilization of the liquid phase. The amount of wax can be determined in relation to the type of wax, the type and amount of soap, the type of solvent, and the like. The amount of wax is, for example, 0.5 to 7.0.
% By weight (based on the weight of the detergent), preferably 1.0 to
5.0% by weight.

When the quantitative ratio of the wax is more than the above range, it is difficult to form a uniform thickness and a smooth surface film,
If the amount is less than the above range, it becomes difficult to form a wax film. Silicone oil In the present invention, the effects of water repellency, film strengthening, gloss and slipperiness can be improved by blending a silicone oil (that is, one having a molecular weight in a range of a linear and oily molecular weight). Is given to As the silicone oil, any of a single kind and a plurality of kinds can be used.

Silicone oil is suitable for use from the viewpoint of long-term stability of the wax film.
For example, dimethyl silicone oil, methylphenyl silicone oil, alkyl-modified dimethyl silicone oil and the like can be used. Dimethyl silicone oil has a low surface tension and can provide water repellency suitable for protecting metal exterior materials for construction.

The amount of the silicone oil is from 0.8 to
6.0% by weight (based on the weight of the detergent), preferably 1.5 to 6.0% by weight.

When the upper limit of the amount of the silicone oil is larger than that, the fixability of the wax film to the metal exterior material of the building is reduced, and when the lower limit is smaller than that, the repellency of the wax film surface is reduced. Aqueous decreases. Fluororesin In the present invention, an effect such as contamination prevention is imparted to the wax film by blending the fluororesin.

The fluororesin is, for example, polytetrafluoroethylene (hereinafter may be abbreviated as PTFE), polytetrafluoroethylene-hexafluoropropylene polymer (FEP), or tetrafluoroethylene-per-fluoroalkylvinyl ether. -The use of tercopolymers (PFA) is typical.

For prevention of contamination of the wax film, in particular, PT
The use of FE is suitable. PTFE has a degree of polymerization of 10,
Those of about 000 to 100,000 are suitable.

However, in the present invention, the incorporation of low molecular weight PTFE having a low surface energy effectively prevents contaminants from adhering to the wax film. Low molecular weight PT
FE can be used by either telomerization or molecular weight reduction by radiation cleavage.

The wax film obtained in the present invention does not impair the film formation and the adhesion of the film to the metal even when the low molecular weight PTFE is blended. Moreover, low molecular weight PT
Since FE has a low surface energy, it does not affect the performance of other components coexisting in the wax film.

The low molecular weight PTFE has a molecular weight of 1,000
~ 500,000 (preferably 1,000 ~ 2
About 5,000) are suitable. Molecular weight 1,0
If it is less than 00, it may be volatilized, and if the molecular weight exceeds 500,000, the ability to form a wax film is reduced.

The compounding amount of the fluororesin is 0.2 to 3.0% by weight (based on the weight of the detergent), preferably 0.2 to 3.0% by weight.
1.5% by weight of a resin component.

The fluororesin includes a fluororesin alone and a diluted dispersion of the fluororesin (for example, having a content of 10%).
(20% fluororesin dispersion). The fluororesin is used in the present invention regardless of the form of the product.

When the upper limit of the compounding amount of the fluororesin is larger than these values, the properties of the wax film change, and when the lower limit is smaller than these values, the function of inhibiting the adhesion of contaminants decreases. . Antioxidant In the present invention, the oxidative deterioration of the wax film is prevented by blending the antioxidant.

Antioxidants include, for example, cresols such as 2,6-di-tert-butyl-p-cresol, methylenebis (4-methyl-6-t-butylphenol) and tetrakis- [ And polyvalent phenols such as methylene-3- (3,5-di-t-butyl-4-hydroxyphenylpropionate) methane.

The compounding amount of the antioxidant is from 0.2 to 1.0% by weight (based on the weight of the washing protective agent), preferably from 0.3 to 1.0%.
0.5% by weight. UV Absorbent In the present invention, the UV-deterioration of the wax film is prevented by blending the ultraviolet absorber.

Examples of the ultraviolet absorber include a benzophenone ultraviolet absorber such as 2-hydroxy-4-octoxybenzophenone and a triazole ultraviolet absorber such as 2- (2-hydroxy-5-methylphenyl) benzotriazole. Etc. are used.

The compounding amount of the ultraviolet absorber is 0.1 to 0.8.
% By weight (based on the weight of the detergent), preferably 0.2 to
0.5% by weight. Anticorrosive In the present invention, corrosion of the metal to which the wax film is adhered is prevented by blending the anticorrosive.

The anticorrosive is, for example, sodium silicate, sodium orthosilicate, sodium metasilicate, higher fatty acid amine acetates, benzoic acid amine salts, higher fatty acid amines of acidic phosphate esters, and the like.

The amount of the anticorrosive is 0.05 to 1.00% by weight (based on the weight of the washing protective agent), preferably 0.2 to 1.00% by weight.
0.4% by weight. <Liquid phase adjuster> In the present invention, the liquid phase adjuster is blended in the liquid phase of the washing protective agent, so that the effects of the present invention can be easily or improved. The liquid phase modifier is
For example, a thickener, a dispersing aid and an antifreezing agent,
One or more kinds can be blended. Thickener The liquid phase of the present invention has a viscosity (viscosity) even when a thickener is added.
Can be adjusted. Examples of the thickener include polyvinyl alcohol, carboxyvinyl polymer, polyvinylpyrrolidone, polyethyleneimine, methylcellulo-
, Hydroxyethylcellulose, guar gum, carrageenan, xanthan gum and modified starch. As the thickener, either a single type or a plurality of types can be used.
For example, the thickener has a liquid phase of 400 to 60,000 cps.
(Room temperature, B-type viscometer). Dispersing Aid In the present invention, a dispersing aid for assisting the emulsifying action of soap may be blended. The liquid phase emulsion is stabilized and homogenized by adding a dispersing aid. As the dispersing aid, for example, water-soluble solvents such as glycol and glycol ether are typical. As the glycol,
For example, ethylene glycol, propylene glycol,
Butylene glycol and hexylene glycol. Examples of the glycol ether include methyl monoglycol, methyl diglycol and methyl triglycol.
, Ethyl monoglycol, ethyl diglycol, ethyl triglycol, butyl monoglycol, butyl diglycol, butyl triglycol, hexyl monoglycol, hexyl diglycol and hexyl triglycol.
And so on.

The mixing amount of the dispersing agent is 0.5 to 7.0% by weight (based on the weight of the washing protective agent), preferably 0.8 to 3.0%.
0% by weight. Antifreezing agent In the present invention, an antifreezing agent may be blended in order to ensure the stability of the liquid phase during low-temperature storage. Examples of the antifreeze include isopropyl alcohol, ethylene glycol and propylene glycol. A single type or a plurality of types of antifreezing agents can be used.

The amount of the antifreeze is, for example, 10.0
2% by weight or less (based on the weight of the detergent), preferably 3.
0 to 5.0% by weight. Cleaning protective agent of the present invention <cleaning protection method using a cleaning protective agent of the present invention> removes the dirt adhering to the metallic exterior member, thereby forming a uniform wax film on the metal outer package.

The present invention is directed to architecture.
The term “architecture” is used in a meaning that includes building and what is made (typically, a building (a building, a building) and a building frame of a building, etc.). Is mainly the latter meaning,
It is mainly located on the outside of the product (such as the side and location directly exposed to the environment). Further, the architecture to which the present invention is applied can be either a whole or a part of a building made. As an example of the entirety of a building to which the present invention is applied, there is, for example, a building or the like entirely formed of a metal exterior material.

In the present invention, the effect of the present invention can be maximized when the object is made of metal (typically, aluminum material).

The cleaning protective agent of the present invention is applied to a target area, and dirt penetrates into the target area, so that cleaning can be easily performed. The application may be carried out by any means as long as the cleaning agent of the present invention can be applied to a target portion, but typically, it can be applied by a sponge roller, a coating roller or the like.

The cleaning agent applied to the building exterior or the like is wrapped (rubbed) with a cloth such as a nonwoven fabric (for example, a nylon pad) after being left for a certain period of time, and then uniformly wiped off with a dry cotton cloth or the like. Formed on the wax film. Means for uniform formation of a wax film are those that produce the same effect in place of nonwoven fabric and dry cotton fabric (for example,
Other types of cloth) can be used.

The treatment in which the cleaning protective agent is left for a certain period of time for application is effective in permeating and dissolving the liquid phase of the cleaning protective agent into the contaminants adhering to the building exterior or the like. Substance removal can be performed efficiently. or,
Leaving the cleaning protective agent for a certain period of time is effective in volatilizing the volatile component of the liquid phase of the cleaning protective agent, so that the wax component of the cleaning protective agent adheres and remains at a predetermined thickness at a target location.

As the standing time after the application of the cleaning protective agent, an optimum time corresponding to the environmental conditions (for example, temperature, wind speed), the type of the pollutant, the adhesion strength, and the like is selected. The leaving time may be shorter (for example, about 4 to 5 minutes) in a high temperature environment, but may be longer (for example, about 10 to 20 minutes) in a low temperature environment. ) May be required.

The washing protective agent is, for example, about 10 to 70 μm
If applied so as to have a thickness (preferably 20 to 60 μm), cleaning and formation of a wax film are easy. The thickness of the dried wax film after rubbing and wiping is desirably 2 μm or more.

The present invention is in line with the object of the present invention, and modifications or partial changes and additions are optional as long as the effects of the present invention are not particularly impaired. It is within the scope of the invention.

Next, the present invention will be specifically described based on examples, but the examples are illustrative and do not restrict the present invention.

[0084]

【Example】

<Example 1> Example 1 is an example in which the components of Table 1 were used to prepare the cleaning protectant of the present invention.

[0085]

[Table 1] Stainless steel container A contains carnauba wax, silicone oil, aliphatic hydrocarbon (organic solvent), oleic acid,
Methyl-2,4-pentaneddiol was added and heated to about 80 ± 5 ° C. with stirring to completely dissolve the solid.

Next, N, N-dimethylethanolamine was gradually added to the stainless steel container A to cause a neutralization reaction with oleic acid.

A 1/5 amount of the purified water shown in Table 1 was placed in a stainless steel container B, and carboxyvinyl polymer was added thereto with stirring to completely dissolve the solution, thereby preparing a carboxyvinyl polymer solution.

To a stainless steel container C, 4/5 of the amount of purified water shown in Table 1 was added and heated to about 40 ± 5 ° C. while stirring. Next, the heated purified water in the stainless steel container C
While stirring with a homogenizer at 0 to 500 rpm, a liquid heated to about 80 ± 5 ° C. in the stainless steel container A was added thereto and emulsified.

Stirring with a homogenizer was carried out for 1 to 2 hours to obtain a uniform emulsion state. Further, while stirring the inside of the stainless steel container C with a homogenizer,
The entire amount of the carboxyvinyl polymer solution in the stainless steel container B was added thereto, and the mixture was cooled to room temperature and uniformly emulsified. A polytetrafluoroethylene telomer (15% solution) was added to the emulsion as a washing protective agent while similarly stirring for 30 minutes. The viscosity of the detergent is 600 to 2,000.
The viscosity range was adjusted to 0 cps. Example 2 Example 2 is an example in which the components shown in Table 2 were used to prepare a detergent.

[0090]

[Table 2] Example 2 is based on the components of the stainless steel container A of Example 1
Operations in the stainless steel container A, the stainless steel container B and the stainless steel container C were the same as those in Example 1 except that -ethylhexylene glycol was removed.

In Example 2, finely divided aluminum oxide particles serving as an abrasive were added to the uniformly emulsified emulsion while stirring.

The viscosity of the abrasive-containing liquid phase is from 5,000 to
The viscosity range was adjusted to 20,000 cps. <Example 3> Example 3 is an example in which a cleaning protective agent was prepared using the components shown in Table 3.

[0093]

[Table 3] The operations in the stainless steel container A, the stainless steel container B, and the stainless steel container C were the same as in Example 2. <Example 4> An aluminum alloy outer wall and a stainless steel of a high-rise building were washed with the cleaning agent prepared in Example 1.
A test of cleaning protection for the outer wall made of steel was conducted.

Exhaust gas components and dust adhered to the outer wall. The washing protective agent of Example 1 was uniformly applied to the outer wall with a sponge roller, and the cotton nonwoven fabric having a high absorbency was wiped off while rubbing in a loop before the natural drying was completed.
That is, by the operation of applying and wiping the emulsion, the contaminated aluminum alloy outer wall was washed and a wax film was formed.

Emulsion coating amount: 22 to 29 g / m
² (outer wall), the thickness of the emulsion layer immediately after application is 26 μm (temperature 5-10 ° C.) and 20 μm (temperature 2
5-30 ° C). The silicone-containing wax film fixed to the outer wall after wiping with a cotton nonwoven fabric was about 1.
The thickness was 5 to 3.5 μm (manufactured by Sanko Electronic Research Laboratory Co., Ltd .: measured by a dual type film thickness meter).

The thickness of the wax film was controlled by controlling the application time and the wiping time with a cotton nonwoven fabric.

The application operation (ie, cleaning operation) using a sponge roller can be performed by suspending a gondola on the outer wall of a high-rise building and moving it up, down, left and right, so that the emulsion was hardly scattered from the work place.

Upon visual observation after the completion of the work, it was found that the outer wall made of either aluminum alloy or stainless steel was regained a clear luster that could be mistaken. Example 5 Aluminum alloy outer wall and stainless steel in which a corrosion or an oxide film or both of them are formed by a dispersion of the emulsion prepared in Example 2 (hereinafter referred to as the emulsion of Example 2) A test of cleaning protection for the outer wall made of the product was conducted.

Exhaust gas components and dust adhered to the outer wall, and corrosion or an oxide film or both of them were formed. For the protection of the washing, the emulsion of Example 2 was uniformly applied to the outer wall by a sponge roller, and the cotton nonwoven fabric having a high absorbency was wiped off while being rubbed in a loop before air drying was completed. Was. The portions where gloss was not obtained by one of these operations were applied to the portions with a roller with a washing protective agent, and the rubbing operation was repeated until the gloss was obtained. Finishing was evenly wiped with a dry cotton cloth.

The thickness of the emulsion layer immediately after the application of the emulsion was 46 μm (air temperature 5 to 10 ° C.) and 35 μm (air temperature 25 to 30 ° C.). The thickness of the silicone-containing wax film fixed to the outer wall was about 1.7 to 2.8 μm (measured by a film thickness meter). In the visual observation after the end of the work,
Both aluminum alloy and stainless steel outer walls have regained a clear luster that can be recognized. <Example 6> The emulsions prepared in Examples 1 to 3 were applied to test pieces to perform a rust prevention test. 60 × 80 × 1.2
Anodizing treatment (according to JIS 9500) was performed on an aluminum plate having a size of mm (defined in JIS 4000) to obtain 30 g / m of the emulsion prepared in Examples 1 to 3.
² and dried in a well-ventilated room at a temperature of 25 ° C. for 20 minutes, and then the nylon pad is looped into 10 pieces.
The material was rubbed while rotating, and then gently wiped with a cotton cloth to prepare a test piece having a wax film formed thereon.

The average values of the thickness of the wax film of the test piece were 2.7 μm (adjusted by the emulsion of Example 1), 2.9 μm (adjusted by the emulsion of Example 2), and 2.2 μm (example). 3). The film thickness was measured by a dual type film thickness meter (manufactured by Sanko Electronics Research Laboratories). Next, in order to perform a rust prevention test, a test piece of a wax film was cut into a test piece size specified in JISZ0228 (rust stopping oil wetness test method) and used as a test piece for a rust prevention test. . Further, an untreated anodized aluminum plate was prepared as a test piece for a comparative test.

The rust prevention test was repeated with reference to the method specified in JIS K5621 (general rust preventive paint) as three cycles of rust prevention test as one cycle until rust was generated.

The four-step rust prevention test constituting one cycle of the rust prevention test consisted of a substitute salt spray test, a wet test, a hot air drying test and a hot air drying test, and the tests were performed in this order. The salt spray test was performed using a salt spray tester (JISK2
246), instead of artificial seawater,
Sulfuric acid acidic water adjusted to acidic pH 4.0 with 1 / N sulfuric acid was used. The test conditions were 30 ± 2 ° C. for 0.5 hour.

The wetting test was performed according to JISZ0228. The test conditions were 30 ± 2 ° C. for 1.5 hours. The hot air drying test was performed at 50 ± 2 ° C. for 2.0 hours. The hot air drying test was performed at 30 ± 2 ° C. for 2.0 hours.

Table 4 shows the results of the rust prevention test for 100 to 500 cycles. The results of the rust prevention test were evaluated based on the occurrence rate of pitting corrosion (based on JISZ2912). Table 4
Evaluation A in the table indicates that no pitting occurred.
The evaluation B in the table indicates that the pitting incidence is 11 to 25%, and the evaluation C in Table 4 indicates that the pitting occurrence is 26 to 50%.

[0106]

[Table 4] <Example 7> The construction processing for the test performed in Example 5 was performed by using the aluminum alloy outer wall and the stainless steel in which the oxide coating film was formed on the buildings in the urban areas of Tokyo, Osaka, and Yokohama. To the outer wall made of steel to observe the situation over time. In the test, the untreated outer wall was left for comparison.

[0107] It was confirmed by visual observation that the outer wall treated in Example 5 had the same outer wall material as a new one. Visual observations were performed by seven or more observers, most of which were confirmed to be the same as new. Table 5 shows the observation results one year or more after the construction processing.

[0108]

[Table 5]

[0109]

According to the present invention, various effects represented by the following (1) to (9) can be obtained. (1) An architectural cleaning / protecting agent capable of cleaning a building (particularly a metal member of a building exterior) and forming a protective film (wax film) with one liquid is provided. (2) There is provided an architectural cleaning protective agent which can be cleaned so that dirt derived from exhaust gas and dust and the like can be quickly permeated and desorbed. (3) There is provided an architectural cleaning protective agent capable of easily detaching and removing strong fixed substances, corrosion products, oxide films and the like derived from tar-like substances. (4) According to the architectural cleaning protective agent of the present invention, a portion cleaned by a simple operation (particularly, a metal exterior material of a building).
A wax film having excellent durability and stain resistance is formed, and a building (particularly, a metal exterior material of the building) is protected from being oxidized for a long period of time. In other words, even if the building (particularly the metal cladding of the building) is in contact with a severely polluted environment in a large city, it is protected until the next cleaning. (5) According to the cleaning agent for architectural use of the present invention, a wax film that can be easily removed even after a lapse of time after the construction process is formed, so that the wax film can be easily formed again by the reconstructing process. . (6) Since the work of cleaning the building and forming the protective film is non-irritating to the skin and has no odor and no pollution, the working environment is improved. (7) Since the architectural cleaning protective agent of the present invention does not cause any damage to the metal member itself of the building exterior, and does not cause any damage to the joint sealer, mortar, glass, etc. Work becomes easier and the safety of the target building is ensured. (8) Compared with the conventional cleaning method and the like, the cleaning cost per unit area can be reduced by about 50% or more.

That is, the landscape of a building (particularly, a building in an urban area) can be maintained with low cost and low labor. (9)
Pollution factors are removed from the cleaning work of the building, and the cleaning work is performed without pollution.

Further , it is possible to use the architectural cleaning protective agent of the present invention.
Thus, various effects represented by the following (a) to (c) can be obtained. (A) Even in a severely polluted environment of a large city, the work of cleaning and protecting buildings can be performed simply, without pollution, with high efficiency and with safety. (B) Even when performing the work of cleaning and protecting the building, only the worker can go on the work with the gondola suspended on the outer wall of the high-rise building. (C) The work of cleaning and protecting a building can be performed without skill, and an excellent cleaning effect and effective formation of a protective film can be achieved. _

Continuation of the front page (51) Int.Cl. ⁷ identification code FI C11D 9/24 C11D 9/24 (56) References JP-A-2-169680 (JP, A) JP-A-6-145603 (JP, A) JP-A-7-197089 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C11D 9/02 C11D 9/22-9/30 C11D 3/14 C09G 1/08-1 / 12

Claims (3)

(57) [Claims] (1) Solid at room temperature, penetration degree (JISK22)
35 to 25) wax and silicone
And (2) a higher fatty acid comprising an unsaturated acid or a saturated acid,
Amino alcohol, alkylamine and morpholine
Of volatile organic compounds consisting of one or more species
The soap component generated by the neutralization reaction with the component (3) comprises an aliphatic hydrocarbon having a boiling point of 130 to 250 ° C.
10 to 35 parts by weight of organic solvent and water (organic solvent)
/ 40 to 70 parts by weight (water) contained in the liquid phase
What is, (4) a liquid phase is 400～60,000Cps (room temperature, B type
(5) Measured by a viscometer).
Characteristic architectural cleaning protectant. 2. The method according to claim 1, wherein the film component is a solid at room temperature and has a penetration degree (J
0.3 to 25 waxes (according to ISK2235) and
Silicone, fluororesin, abrasive, antioxidant, ultraviolet
Do not contain one or two or more radiation absorbers and anticorrosives.
2. The architectural wash protection of claim 1, wherein:
Agent . 3. The method according to claim 1, wherein the liquid phase comprises a thickener, a dispersing aid, and a cryoprotectant.
It is important to note that one or more
The architectural wash according to claim 1 or claim 2 as a sign.
Protective agent .