BACKGROUND OF THE INVENTION Shower stalls and bathtubs typically accumulate organic and inorganic deposits, residues, or other foulants during use. Such materials include insoluble soap scum, washed off body dirt and/or body oils, insoluble metal salts, and mildew and other microorganisms that grow in such an environment. These accumulated materials are obviously undesirable due to concerns over cleanliness, hygiene and aesthetics.

Although the cleaning of such surfaces may be performed with numerous cleaning compositions commercially available to consumers, this task is typically difficult and an undesirable chore. In particular, cleaning of the surfaces in a shower stall is in most cases difficult due to the small enclosed area and multiple surface shapes found therein. As a result, considerable labor is required to clean such surfaces using conventional cleaners.

An option to periodic cleaning of such surfaces with various commercial surface cleaners designed for this purpose is the periodic misting of the shower stall and bath surfaces with a rinsable mixture of surfactants and chelating agents. This is particularly effective if done just after a shower or bath when the shower or bath surfaces are still wet.

This type of rinsable formulation keeps the deposits, residue and/or foulants in suspension and thus rinsable off of the surface during the next shower. U. S. Patent 5,536,452 discloses one such rinsable solution for keeping shower surfaces clean. This patent refers to a formulation which is blend of nonionic surfactant with a HLB of 12 or less, a chelating agent, an alcohol solvent, preferably isopropyl alcohol, and water. The formulation is pH adjusted to 4 to 8 with pH 5 being preferred. Although this composition appears to be effective for its intended purpose, it has several disadvantages. For example, although an alcohol solvent helps in keeping soil and various oils dispersed, exposure to some shower and/or bath surfaces is not recommended. For example, acrylic knobs could

stress crack if exposed to certain solvents. In addition, most solvents have a strong odor and are not recommended for skin, nasal or throat contact. Also, solvent odors are very difficult to mask with a fragrance, and may linger in the tub or shower enclosure after the fragrance has dissipated. Therefore, a solvent-free formulation would be strongly preferred. pH is also an important consideration in the design of a shower or bath principle formulation. The'452 patent uses an acidic-based formulation having a pH of between 4 to 8. Acidic pH is not recommended for contact with some shower and bath surfaces, such as natural marble, and therefore, a formulation neutral or alkaline in pH would be preferred.

Care must be taken in the choice of surfactants and chelating agents. Most surfactants and chelating agents when dried on a shower or bath surface leave dull, soapy- looking appearances. This appearance is water-rinsable, but unattractive. Also, the misting of shower and bath surfaces with rinsable formulations such as that disclosed in the'452 patent is typically done with the individual still in the shower, and thus the use of additives safe for exposure to skin and throat or nasal passages must be considered. For example, citric acid is an effective chelating agent, but citric acid leaves a residue upon drying and has been shown to cause nasal or throat irritation in some people. Cationic surfactants used as antibacterial additives have also shown similar effects to citric acid.

DISCLOSURE OF INVENTION The present invention provides a surface cleaner which may be used to mist surfaces such as shower stalls and bathtubs so as to prevent organic and inorganic deposits, residues and foulants from building up on these surfaces. The cleaner is aqueous-based and may be rinsed from the surfaces without scrubbing or wiping of the surfaces and when dry does not spot or streak.

The scrub-free formula is composed of up to 1% by weight of a wetting agent or surfactant, or blends thereof, which upon drying leaves a clear film, up to about 2% by weight of a chelating agent, and the remaining ingredient being water. The pH of the formula is from about 5 to about 12, preferably about 9 to about 12, and most preferably 11 to 12. Optional additives such as fragrances, colorants, additional surfactants, bactericides, moldicides, fungicides, additives for pH adjustment, hydrophilic additives for

surface effects and silicones for surface gloss and water repellency may also be added.

Preferred wetting agents or surfactants are alkyl polyglucoside nonionic surfactants or any other surfactant which demonstrates a"gloss loss"for the composition in the range of only 0-25%, preferably 0-10%, after application. The above formulation is particularly effective when the surface on which it is applied is wet, and as a result, maintains the surface foulants in suspension and rinsable during the next shower or bath.

The formulation of the present invention is free of any organic solvent, especially alcohol-free, and thus has minimal odor, and is safe for skin, nasal or throat contact. This formulation preferably also has a neutral to alkaline pH which is safe for use in most shower and bath surfaces. At alkaline pH levels, aluminum corrosion can be inhibited by the addition of a compound such as sodium metasilicate in an amount of about 0.1% by weight. Also, if formulated at a slightly acidic pH, aluminum corrosion is eliminated. In addition, it has been found that the present formulation eliminates mold and fungus growth since potential food sources are conveniently rinsed away during each subsequent use.

Although the present formula is particularly advantageous for use in connection with cleaning surfaces in shower stalls or baths, the composition is not limited to such applications. The composition may also be used as an exterior home cleaner for siding and windows where drying is difficult, or as an excellent automobile cleaner that does not need to be dried. The formula advantageously dries without spotting or streaking and thus provides a wax-like appearance which is particularly desirable for automobile paint. The formulation may be used in any application where it is desired to maintain surfaces clean without the action of scrubbing or wiping of surface deposits, residue or foulants.

Unexpectedly, the composition of the present invention also provides a method of cleaning drains in showers, bathtubs and the like. By being repeatedly washed down a drain, the cleaning composition prevents clogging or slow running of water in the drain due to the buildup of organic materials and inorganic salts on the drainpipe's interior surfaces. Accordingly, as an added benefit, the present composition provides a drain cleaning product which is easy to use and reduces the frequency at which drain clogs must be treated.

DETAILED DESCRIPTION OF THE INVENTION An aqueous, rinsable cleaning composition having ingredients in the following ranges provides advantages over current rinsing compositions when evaluated for its cleansing ability, anti-streaking and anti-spotting abilities as well as consumer acceptance.

More particularly, the cleaning composition of the present invention includes from about 0.1 % to about 1% by weight of a wetting agent or surfactant, or blends thereof, which upon drying leaves a clear film, from about 0.1% to about 2% by weight of a chelating or sequestering agent, and from about 99.8% to about 97% by weight water. Additionally, the formulation may include up to 5% by weight of other additives conventionally added to cleaning compositions for specific effects. The specific amount of each ingredient in the formulation may vary depending upon the specific end use and properties desired.

Obviously, however, the ingredients must comprise 100% by weight of the composition, and the percentages set forth herein are based on the weight of the entire cleaning composition.

In accordance with the invention, a preferred embodiment of the cleaner has the following composition expressed in percent by weight: Weight % Ingredient Commercial Generic Name Source 0.3% Ammonyx C10 Amine Oxide Stepan quaternary surfactant 0.5% Glucopon 325 CS Henkel nonionic surfactant 1.5% Versene 100 Dow chelating agent 0.1% Dowicil 75 Dow preservative 0.02% Fragrance 6517-HAY International fragrance Flavors & 97.58% DI Water deionized water The above composition has a pH of 12.

Surfactants that may be employed in the present invention include anionic, nonionic and amphoteric, and mixtures thereof. The surfactant used in the formulation of

the present invention advantageously wets the surface to be cleaned at a pH of 5-12, and upon drying on the surface leaves no visible residue and/or deposit. Preferably the"gloss loss"of the composition utilizing such surfactants is less than 25%, and most preferably less than 10%. In general, as noted above, the present cleaning composition contains a surfactant, or blend of surfactants, in the range of about 0.1% to about 1% by weight, more preferably 0.2% to 1% by weight, and most preferably about 0.5% by weight. A composition containing less than about 0.1% by weight of such a surfactant results in decreased effectiveness while a composition containing greater than about 1% by weight does not significantly increase the cleaning and anti-streaking/anti-spotting ability of the composition. Also, at lower surfactant levels care must be taken to insure the fragrance and other minor additives are kept in solution. Preferred surfactants are those that have low odor, high wetability performance, low volatile organic components, dry to a clear film, reduced streaking upon drying and retain a glossy appearance when dry.

Suitable nonionic surfactants include the ethylene oxide esters of alkyl phenols such as (nonylphenoxy) polyoxyethylene ether, the ethylene oxide ethers of fatty alcohols such as tridecyl alcohol polyoxyethylene ether, the propylene oxide ethers of fatty alcohols, the ethylene oxide ethers of alkyl mercaptans such as dodecyl mercaptan polyoxyethylene thioester, the ethylene oxide esters of acids such as the lauric ester of methoxy polyethylene glycol, the ethylene oxide ethers of fatty acid amides, the condensation products of ethylene oxide with partial fatty acid esters of sorbitol such as the lauric ester of sorbitan polyethylene glycol ether, and other similar materials.

The preferred nonionic surfactant is an alkyl polyglycoside available under the trade designation Glucopon from Henkel Chemical Company. These polyglycosides have the following general formula:

The Glucopon family of surfactants provides numerous performance advantages, namely, (1) high solubility with no gel phase or cloud point while also providing an effective hydrotrope or coupling agent; (2) electrolyte tolerance; (3) good grease cutting ability; (4) easy rinsing with little or no streaking or spotting; (5) high gloss retention; and (6) biodegradability.

The following table illustrates the characteristics of the Glucopon surfactants product line. Each is a suitable nonionic surfactant for use in the present composition. Glucopon Glucopon APG Glucopon Glucopon Glucopon 220UP 225DK 325N 425N 600 UP 625UP Alkyl 8, 10 8, 10 9,10,11 8,10,12,12,14,16 12,14,16 Chains 14,16 Average 9. 1 9. 1 10. 2 10. 3 12. 8 12. 8 Chain Average DP 1. 52 1. 70 1. 60 1. 48 1. 40 1. 60 Alcohol vegetable vegetable synthetic, vegetable vegetable vegetable Source oxo pH as is 11.5-12.5 6.0-9.0 7.0-9.5 7.0-9.5 11.5-12.5 11.5-12.5 % Active 58.0-62.0 68.0-72.0 48.0-52.0 48.0-52.0 48.0-52.0 48.0-52.0 Viscosity, 2,800 4, 800 1, 450 550 18, 000 21,500 cps @25°C Viscosity, 1,000 2, 150 725 350 4,200 6,200 Glucopon Glucopon APG Glucopon Glucopon Glucopon 220UP 225DK 325N 425N 600 UP 625UP cps@35°C

Suitable anionic surfactants include alpha olefin sulfonates, the alkyl aryl sulfonic acids and their alkali metal and alkaline earth metal salts such as sodium dodecyl benzene sulfonate, magnesium dodecyl benzene sulfonate, disodium dodecyl benzene disulfonate and the like as well as the alkali metal salts of fatty alcohol esters of sulfuric and sulfonic acids, the alkali salts of alkyl aryl (sulfothioic acid) ethers, alkyl thiosulfuric acid and soaps such as coco or tallow, etc. Preferred anionics include sodium dodecyl benzene sulfonate available under the tradename Nacconal 40-G from Stepan Company, Northfield, IL; and sodium lauryl sulfate ("SLS") because of its detergency, wetting, foam enhancing and emulsifying properties. SLS is available in dry form under the trade designation Stepanol ME-Dry from the Stepan Chemical Company. Particularly preferred anionic surfactants are the Dowfax compounds available from Dow Chemical, which are hereinafter described.

Suitable amphoteric surfactants include the fatty imidazolines, such as 2-coco-1- hydroxyethyl-1-carboxymethyl-1-hydroxylimidazoline and similar compounds made by reacting monocarboxylic fatty acids having chain lengths of 10 to 24 carbon atoms with 2- hydroxy ethyl ethylene diamine and with monohalo monocarboxylic fatty acids.

An additional class of surfactants which may be used are amine oxides which demonstrate cationic surfactant properties in acidic pH and nonionic surfactant properties in alkaline pH. Exemplary amine oxides include dihydroxyethyl cocamine oxide, tallowamidopropylamine oxide, lauramine oxide, and lauryldimethylamine oxide.

Especially preferred is Ammonyx C10 available from Stepan.

Quaternary surfactants such as dialkyl dimethyl ammonium chloride, alkyl dimethyl benzyl ammonium chloride and alkyl dimethyl ethyl benzyl ammonium chloride may also be employed. A particularly preferred quaternary surfactant is BTC 2125M available from Stepan.

In addition to the above surfactants, hydrotropes may be added to the composition to increase the solubilization of a relatively insoluble substance in the aqueous cleaning

composition. These hydrotropes aid in solubilizing the organic and inorganic deposits normally accumulating on the surface of shower stalls, bathtubs and the like. Preferably hydrotropes having a C6 l0 average length are employed in the present composition.

Examples of such hydrotropes include the following compounds: HYDROTROPE COMMERCIAL SOURCE GENERIC NAME Aqualox 242-HT-90 Alox Corp. Amine/amine carboxylate hydrotrope DePhos AP-80 Deforest Enterprises, Inc. Aromatic phosphate ester in free acid form DePhos H-66-872 Deforest Enterprises, Inc. Potassium salt of an organic phosphate ester mixture DePhos OP-75LF Deforest Enterprises, Inc. Complex cryptic phosphate ester DePhos P-6LF Deforest Enterprises, Inc. Polyoxyethylene phenyl ether phosphate DePhos RA-40 Deforest Enterprises, Inc. Polyoxyethylene isodecyl ether sulfate DePhos RA-60 Deforest Enterprises, Inc. Deceth-4 phosphate DePhos RA-70 Deforest Enterprises, Inc. Deceth-4 phosphate DePhos RA-75 Deforest Enterprises, Inc. Deceth-4 phosphate DePhos RA-80 Deforest Enterprises, Inc. Deceth-4 phosphate Deriphat 160C, 151C, 160 Henkel Corp./Emery Grp. Fatty aminopropionates Cospha/CD Diacid H-240 Westvaco Corp. Potassium salt of C-21 Oleochemical Div. dicarboxylic acid Diacid 1550 Westvaco Corp. C-21 dicarboxylic acid Oleochemical Div. Dowfax C6L Dow Chemical USA Sodium n-hexyl diphenyloxide disulfonate HYDROTROPE COMMERCIAL SOURCE GENERIC NAME Dowfax Dry Hydrotrope Dow Chemical USA Sodium hexyl diphenyloxide disulfonate Dowfax Hydrotrope Dow Chemical USA Sodium hexyl diphenyloxide disulfonate Dowfax 2A1 Dow Chemical USA Sodium dodecyl diphenyloxide disulfonate Dowfax 3B2 Dow Chemical USA Sodium n-decyl diphenyloxide disulfonate Dowfax 8390 Dow Chemical USA Sodium n-hexadecyl diphenyloxide disulfonate Hydromax 100 Chemax, Inc. Organic acid salt Hydromax 101 Chemax, Inc. Organic acid salt Hydromax 102 Chemax, Inc. Organic acid salt Hydromax 103 Chemax, Inc. Organic acid salt Hydromax 200 Chemax, Inc. Phosphate ester salt Hydromax 201 Chemax, Inc. Phosphate ester free acid Hydromax 202 Chemax, Inc. Phosphate ester salt Hydromax 203 Chemax, Inc. Phosphate ester free acid Hydromax 204 Chemax, Inc. Phosphate ester free acid Hydromax 300 Chemax, Inc. Quaternary ammonium compound KNA-Cumene Sulfonate 40 Huls America, Inc. Potassium sodium cumene sulfonate Laurelphos LFH Reilly-Whiteman, Inc. Potassium salt of phosphate ester, anionic Maphos 60A PPG Industries Specialty Complex organic phosphate Chemicals Bus. Unit esters Maphos 8135, JP70 PPG Industries Specialty Complex organic phosphate Chemicals Bus. Unit acid esters HYDROTROPE COMMERCIAL SOURCE GENERIC NAME Mirataine H2C HA Rhone-Poulenc, North Hydrotrope American Chem. Surfactants & Specialties Monafax 1293 Mona Industries, Inc. Organic phosphate ester Monafax 1296 Mona Industries, Inc. Organic phosphate ester Monatrope 1250 Mona Industries, Inc. Proprietary Na-Butyl Monoglycol Huls America, Inc. Sodium butyl monoglycol Sulfate 50 sulfate Na-Cumene Sulfonate Huls America, Inc. Sodium cumene sulfonate Power Na-Cumene Sulfonate 40 Huls America, Inc. Sodium cumene sulfonate Naxonate KT, 4KT Ruetgers-Nease Corp. Potassium toluene sulfonate Naxonate SC Ruetgers-Nease Corp. Sodium cumene sulfonate Naxonate ST, 4ST Ruetgers-Nease Corp. Sodium toluene sulfonate Naxonate SX Ruetgers-Nease Corp. Sodium xylene sulfonate Naxonate 4AX Ruetgers-Nease Corp. Ammonium xylene sulfonate Naxonate 4L Ruetgers-Nease Corp. Sodium xylene sulfonate Naxonate 45SC Ruetgers-Nease Corp. Sodium cumene sulfonate Nonyl Succinic Anhydride The Humphrey Chemical Nonyl succinic anhydride Co., Inc. A CAMBREX Company Nutrol SXS Boehme Filatex Canada, Sodium xylene sulfonate Inc. Petro BA, Petro 11 Witco Corp. Sodium alkylnaphthalene Oleo/Surfactants sulfonate Stepanate AXS Stepan Company Ammonium xylene sulfonate Stepanate SCS Stepan Company Sodium cumene sulfonate HYDROTROPE COMMERCIAL SOURCE GENERIC NAME Stepanate SXS Stepan Company Sodium xylene sulfonate Tex-Wet 1140 Intex Chemical Sodium xylene sulfonate Div. of EZE Products, Inc. Toluenesulfonic Acid Ruetgers-Nease Corp. Toluenesulfonic acid Witco TX Acid Witco Corp. Modified toluene sulfonic Oleo/Surfactants acid Witconate Witco Corp. Sodium toluene sulfonate Oleo/Surfactants Witconate P10-59 Witco Corp. Ammonium xylene sulfone Oleo/Surfactants Witconate SCS Liquid Witco Corp. Sodium cumene sulfonate Oleo/Surfactants Witconate SCS Power Witco Corp. Sodium cumene sulfonate Oleo/Surfactants Witconate STS Liquid Witco Corp. Sodium toluene sulfonate Oleo/Surfactants Witconate SXS Liquid Witco Corp. Sodium xylene sulfonate Oleo/Surfactants Witconate SXS Power Witco Corp. Sodium xylene sulfonate Oleo/Surfactants Xylenesulfonic Acid Ruetgers-Nease Corp. Xylenesulfonic acid

Chelating agents are typically added to the composition to bind metal or metal ions in the form of a soluble complex for the purpose of preventing precipitation of the metal or metal ion in water solution by agents that would normally result in precipitation. The chelating agent may be present in the composition in amounts from about 0.1% to about 2% by weight, with the preferred range being 0.25% to about 0.75%, and the most referred being 0.5% by weight. Less than 0.1% chelating agent decreases the effectiveness of the composition while greater than about 2% by weight of the chelating agent results in no further increased cleaning effects. Also, above about 2% chelating agents may cause a

rainbow-like appearance on chrome components in a tube or shower. Chelating agents, such as, but not limited to, ethylene diamine tetraacetic acid (EDTA), hydroxyethyl ethylene diaminetriacetic acid (HEEDTA), diethylenetriamine pentaacetic acid (DTPA), nitrilotriacetic acid (NTA), and salts thereof, can be used to obtain the chelating property desired. The preferred chelating agent is a tetrasodium salt of ethylenediamine tetraacedic acid (tetrasodium EDTA), such as Versene 100 available from Dow Chemical Company.

Other chelating agents, such as, but not limited to the following list can be substituted for tetrasodium EDTA on an equivalent chelating strength basis:

Chelating Agent Commercial Source Generic Name Versene CA Dow Chemical USA Dicalcium chelate of disodium ethylenediamine tetraacetate, dihydrate Versene NA Dow Chemical USA Disodium dihydrogen salt of ethylenediamine tetraacetic acid, dihydrate Versene Tetra-Ammonium Dow Chemical USA Tetraammonium salt of EDTA ethylenediamine tetracetic acid Versenex 80 Dow Chemical USA Diethylenetriamine pentaacetic acid, pentasodium salt Versenol 120 Dow Chemical USA N-hydroxyethylene diamine triacetic acid, trisodium salt

The pH of the end product should be between 5 and 12, preferably between 9 and 12, and most preferably 11 to 12. Depending upon the acidity of the chelating agent, the composition of the present invention can be adjusted using any number of agents.

Preferably, pH adjustment is accomplished with any compatible alkaline agent such as ammonium hydroxide if the composition is too acidic, or alternately, with any common compatible acid such as versinic acid if the composition is too alkaline. Inorganic acids should not be used to adjust pH as such acids may precipitate various salts upon drying leaving an unsightly appearance on shower or tub components.

The composition also preferably contains a fragrance such as pine, lemon, etc. to mask any undesirable odors from the ingredients and to provide a desired scent to the user.

Although a fragrance is not necessary, generally about 0.01% to about 0.1% of fragrance is added to the composition. Any of the number of commercially available fragrances may be used to provide the desired scent as is well known to those skilled in the art. For example, 6517-HAY available from International Flavors and Fragrances provides a pleasant, fresh scent and is particularly desirable for use in the present composition.

The water used in the present composition preferably has negligible amounts of metal ions so as to provide the least amount of residue or deposits upon evaporation from a surface resulting in minimal spotting. Distilled water or deionized water is preferred as the source of water for dilution of the components described herein. However, any water source may be used depending upon the degree of water hardness. As is well known to those skilled in the art, the amount of surfactant and chelating agent may be increased or decreased to account for water hardness and soils with different degrees of metal ions, particularly calcium and magnesium.

Additional ingredients such as coloring agents may also be added to the cleaning composition. Generally, the coloring agent is present in any amount less than about 1 % by weight of the cleaning composition. Additional optional components include corrosion inhibitors, disinfectants, preservatives, bactericides, moldicides, fungicides, and the like.

If utilized, these components are typically present from about 0.1% to about 1% by weight of the cleaning composition. A water repellant, such as a silicone compound, may also be added for surface gloss and water repellency. Also, hydrophilic additives, such as fluorocarbon surfactants, are particularly effective in reducing the number of applications or mistings necessary to be applied. Levels of less than 500 ppm is typically all that is necessary to obtain this hydrophilic effect.

The cleaning composition may be prepared using any of the methods known in the art involving the formation of liquid aqueous cleaning compositions. Typically, the cleaning composition is prepared by blending all of the ingredients together in a vat or other container.

The composition of the present invention is best applied by being sprayed onto the surface to be cleaned with a pump or pressurized sprayer, and for best results, the solution is applied to the surfaces before the surface is dry. The rinsing solution is particularly

effective in the removal of deposits that are still wet. The composition keeps the surface deposits, residues, and foulants in suspension and rinsable from the surfaces during the next shower. As a result, during subsequent showers, the solution transports these undesirable materials down the wet shower surfaces and into the shower drain. Thus, the repeated cycles of spray application, drying of the shower surfaces and subsequent showering result in the undesirable organic and inorganic materials being washed down the shower drain. No scrubbing, wiping or other mechanical force is necessary to clean these surfaces. While no scrubbing or wiping is typically required, previously dried and set deposits are more difficult to remove and therefore, gentle wiping might initially be necessary to enhance the removal of such accumulated deposits. In other words, the present composition is not an aggressive cleaner, but is more in the realm of a rinsing solution for maintaining a shower clean. Advantageously, the present composition provides this cleaning action without scrubbing or wiping and without spotting or streaking. Thus, a user employs minimal effort for maintaining surfaces clean when utilizing the present composition.

Unexpectedly, the composition of the present invention also provides a method of cleaning a drain pipe of a basin. As used herein, the word"basin"is intended to define a bathtub, a shower enclosure, a sink, and the like. By being repeatedly washed down a drain, the cleaning composition prevents clogging or slow running of water in the drain due to the buildup of organic materials and inorganic salts on the drainpipe's interior surfaces. This is accomplished by spraying the exposed surfaces of a basin surrounding an opening to a drain pipe, i. e., the upstanding and/or sloping walls of a shower enclosure, sink or tub, with the aqueous composition, and then wetting these exposed surfaces immediately thereafter or during a subsequent use. The composition thus contacts the interior surfaces of the drain pipe causing foulants thereon to be held in suspension and rinsed away. Preferably, these steps are repeated on a daily basis. Also, the exposed surfaces surrounding the drain opening may be wetted prior to spraying the composition thereon, if desired. Accordingly, as an added benefit, the present composition provides a drain cleaning product which is easy to use and reduces the frequency at which drain clogs must be treated.

The examples which follow are intended as an illustration of certain preferred embodiments of the invention. Other variations and modifications of this invention will be obvious to those skilled in the art.

EXAMPLE 1 A mixture of the following ingredients was prepared: Ingredient % (by weight) Versene 100 (supplier Dow) 0.5 Glucopon 425CS (supplier Henkel) 0.25 BTC 2125M (supplier Stepan) 0. 05 DI Water 99. 2 pH (as is) 12. 0 The above formulation was used to treat the shower walls after a shower had been finished. Prior to the shower, black tiles with suction cups glued to the back of the tiles were placed on all four walls of the shower. The cleaning and anti-streaking ability of this composition was determined by using the difference in reflectivity between the treated tiles and the original prewashed clean tiles. Measurements were taken using the CIE L*a*b color scale. The black tiles were prewashed with Formula 409 hard surface cleaner and the L*a*b* readings were taken using a Miniscan from HunterLab. The coating of the black tile by soap scum and hard water stains has a pronounced effect particularly on the lightness (L) reading of the L*a*b* scale. The initial readings appear in column 1 of Table 1.

A shower was taken using bar soap to generate soap scum. After the shower was completed the L*a*b* readings were immediately repeated without any tile rinsing. The readings are column II of Table I. The tiles were then washed with hot city water and the L*a*b* readings were again taken. These data are column III of Table I. The tiles were then misted lightly with 2 milliliters of the above formulation and then immediately rinsed with hot city water. The L*a*b* readings were again taken and these data are column IV of Table 1. Finally, the tiles were again lightly misted with 2 milliliters of the above

formulation for 5 minutes before the hot city water rinse. The L*a*b* readings were again taken and these data are column V of Table 1.

Particularly affected was the L reading for the black tile samples which increased as much as 12 L units after only one shower. The L reading was lowered back to within approximately 1 L unit of cleaned tile reading with only a 5 minute exposure and no wiping to the above formulation.

The data show that the above formulation after little more than 5 minutes of exposure and no wiping returns the black tile close to the original cleaned readings.

TABLE 1

Column I II III IV V L/a/b L/a/b L/a/b L/a/b L/a/b Floor 2.37/0.39/0.02 6/-0.4/-3.63 3.72/0.4/-0.47 3.08/0.41/-0.28 Right 2.84/0.43/-0.34 4.87/0.37/-1.3 5.16/0.33/-1.57 52 2.69/0.47/0.03 Wall Back 2.83/0.32/-0.19 12.4/-0.1/-1.72 5.55/0.15/-0.61 5.55/0.38/-1.52 7 Wall Left 2.46/0.48/0.03 14.2/-0.4/-3.52 13.8/-0.2/-2.73 5.03/0.27/-1.22 3.68/0.05/-0.28 Wall EXAMPLE 2 A mixture of the following ingredients was prepared: Ingredient % (by weight) Ammonyx C10 Amine Oxide 0.3% Glucopon 325 CS 0.5% Versene 100 1.5% Dowicil 75 0. 1% Fragrance 6517-HAY 0.02% DI Water 97.58%

The above formula had a pH of 12 and was tested for its cleaning and anti-streaking abilities as in Example 1 and was found to provide a preferred composition.

EXAMPLE 3 It was noticed during shower testing of the new rinsable composition that potential aluminum corrosion of horizontal aluminum components of a shower door, like the drip rail, was occurring. The problem was corrected, while keeping the composition alkaline, by adding 0.1% sodium metasilicate to eliminate aluminum corrosion.

The following mixture was prepared, and aluminum coupon testing data demonstrated that this formula eliminates aluminum corrosion. The composition had a pH of 12. Ingredient % (by weight) Ammonyx C10 Amine Oxide 0.3% Glucopon 325 CS 0.5% Versene 100 1.5% Dowicil75 0. 1% Fragrance6517-HAY 0.02% DI Water 97.48% EXAMPLE 4 In order to determine the"gloss loss"of the composition, a test is performed using a concentrated soap scum made in the lab and tap water which is between 120-250 ppm mineral content. For test purposes a 4 tile by 3 tile board is used. Glossmeter readings are taken on five tiles on a clean tile board, on a tile board treated with one week of showers or seven applications, and finally on a rinsed tile board. To simulate a shower four strokes of hard water will be applied to the tile board, there will be a 10 second wait and then four strokes of the lab soap scum will be applied. This is considered one shower application.

There will be a total of seven shower applications. After waiting 1 minute after applying the soap scum, the cleaning composition is applied after the lst 4"'and 7"'shower application. After all seven applications are complete a 20 stroke DI water rinse is applied

and allowed to dry. This is done to try to measure ease of cleaning. Therefore, the gloss loss is measured using the following formula: Change in gloss = Gloss reading (clean tile)-Gloss reading (after DI water rinse) The change in gloss is typically expressed in terms of % gloss loss so that a low percentage is obviously more desirable with 0% being the most desirable.

The formula described in Example 3 showed a change in gloss or gloss loss of 9%.

In contrast, a composition made in accordance with U. S. Patent 5,536,452 showed a gloss loss of 33%. Also, another commercially available product marketed for this purpose called"Tilex Fresh Shower"was found to have a gloss loss of 35% even though the composition is formulated at a pH of 12.

INDUSTRIAL APPLICABILITY The compositions of the present invention reduces the amount of labor and the number of cleaning compositions required to clean multiple surfaces in the shower stall.

The compositions may be dispensed utilizing commercially available packaging typically utilized for liquid cleaning compositions. In addition, the compositions may be prepared using any of the methods typically used for forming liquid aqueous cleaning compositions.