JP5567336B2 - Alkaline floor cleaning composition and floor cleaning method - Google Patents

Abstract

An alkaline floor cleaning composition concentrate in the form of a solid is provided. The alkaline cleaning composition concentrate can be used to remove fresh, greasy soil and polymerized soil from a floor surface.

Description

  The present invention relates to an alkaline floor cleaning composition and a floor cleaning method using the alkaline floor cleaning composition. Alkaline floor cleaning formulations can be used to remove raw oil stains and polymerized stains commonly encountered in the food service industry.

  Two types of oil stains are often encountered on the floor in the food service industry. One type of dirt is sometimes referred to as raw oil and fat, and another type of dirt is sometimes referred to as polymerized dirt. Fresh oil stains can result from the presence of fatty stains that can include, for example, neutral fatty acid triglyceride esters and similar neutral fats and free fatty acids or salts thereof. Fatty acid salts can be formed with cations such as sodium, calcium, magnesium, ferric, ferrous, etc. Polymerized dirt refers to fats and fatty derivatives that have been polymerized by cross-linking in the same manner as that of drying oils, such as linseed oil. Polymerized dirt materials present different challenges compared to raw oil dirt materials.

  Fresh oil and dirt may adhere to the floor, and these oil and dirt dirt may polymerize and adhere to the floor surface by crosslinking. One type of floor that is often encountered in the food service industry is sometimes referred to as a square tile board. In general, square tiles are often arranged in a lattice-like manner, form a floor finish, and include a cement-like material called grout and provided to the joints of the cut tiles.

  Conventionally, an alkaline or neutral detergent is used to remove raw oil and dirt from the floor surface, and an acidic detergent is used to remove polymerized dirt. A product for cleaning raw oil stains is available from Kay Chemical Company under the name KADET-AF All Surface Floor Cleaner. A product that can be used to clean raw oil stains and polymerized dirt is available from Kay Chemical Company under the name Quarry Tile Floor Cleaner.

Liquid form alkaline cleaning composition concentrates are provided by the present invention. Concentrates for alkaline cleaning are about 15% to about 65% water, about 5% to about 25% surfactant, about 4% to about 20% chelating agent, and about 2 buffering agents. To provide a free alkalinity (Na ₂ O equivalent) of about 1.5% to about 3.5% by weight and about 2.0% to about 6.0% total alkalinity (Na ₂ O equivalent) of about 1.5% to about 10% by weight A sufficient alkali source. The formulation exhibits an aluminum corrosion rate of less than 250 mils / year according to a modified version of ASTM G31-72 and is considered non-corrosive according to the Occupational Safety and Health Administration OSHA Hazard Notification Standard (29 CFR 1910.1200 Appendices A and B).

An alkaline cleaning composition concentrate in solid form is provided by the present invention. The alkaline cleaning blend concentrate comprises about 20% to about 65% surfactant, about 10% to about 30% chelating agent, about 8% to about 20% curing agent, and about 1.5%. % and a sufficient source of alkalinity to provide to about 5.0% free alkalinity (Na expressed as ₂ O) and approximately 2.0% to about 10.0% of the total alkalinity of the (Na expressed as ₂ O). Formulations can be prepared to be considered non-corrosive according to the Occupational Safety and Health Administration OSHA Hazard Notification Standard (29 CFR 1910.1200 Appendices A and B).

  A floor cleaning method is provided by the present invention. The method can be carried out using an alkaline floor cleaning composition concentrate in liquid form or an alkaline floor cleaning composition concentrate in solid form. In general, liquid concentrates or solid concentrates are diluted with dilution water to provide a use composition having a chelating agent content of at least about 100 ppm. The use composition is then applied to the floor surface to provide raw oil and polymer soil cleaning from the floor surface.

  The present invention is directed to an alkaline floor cleaning composition that can be used to remove raw oil and fat dirt and polymerized dirt from the floor surface. Alkaline floor cleaning compositions may be more simply referred to as cleaning compositions. The alkaline floor cleaning composition can be supplied as a concentrate or as a use composition. The use composition refers to a formulation that is intended to be applied to the floor and provides cleanability. The use composition can be prepared as a result of thinning the concentrate with dilution water.

  An alkaline floor cleaning composition refers to a use composition having a pH of at least about 9.5 or a concentrate that provides a use composition having a pH of at least about 9.5 when diluted with dilution water.

  Fresh oil and dirt is a kind of dirt that is often found on the floor in the food service industry. Generally, raw oil stains can result from the presence of fatty stains that can include, for example, fatty acid triglyceride esters and similar fats and free fatty acids or salts thereof. Fatty acid salts can be formed from cations such as sodium, calcium, magnesium, ferric, ferrous, etc. Polymerized dirt refers to another type of dirt that is frequently encountered on the floor in the food service industry. Polymerized dirt usually refers to fats and fatty derivatives polymerized by crosslinking in the same manner as that of a dry oil such as linseed oil. The polymerized film is coated with calcium on a negatively charged surface such as a square tile plate as taught by Cockrell, Jr. et al. In US Pat. No. 4,977,459 and US Pat. No. 4,749,508. It adheres by bonding with water hardness ions such as magnesium.

  The alkaline floor cleaning composition can be applied to different floor surfaces such as cut tile boards, vinyl compound tiles, concrete, painted floors, and the like. Generally, a cut tile board means a ceramic tile and natural stone. Cut tiles are often found in food preparation environments such as restaurant kitchens, hospitals, food processing facilities, food preparation facilities, slaughterhouses, filling factories, shortening production plants, and the like.

  The alkaline floor cleaning composition concentrate can be prepared as a solid or as a liquid. If the concentrate is supplied as a solid or as a liquid, it can be packaged and transported without labeling the package as corrosive. The liquid concentrate can be supplied as non-corrosive for aluminum so that the concentrate can be avoided from being labeled as corrosive by US Department of Transportation regulations. Liquid compositions that can be considered relatively non-corrosive for aluminum exhibit a degree of corrosion of less than approximately 250 mils / year according to a modified variant of ASTM G31-72 (American Test Materials Association). Therefore, the liquid concentrate can be prepared to exhibit an aluminum corrosion rate of approximately 250 mils / year by a modified variant of ASTM G31-72. An improved variant of ASTM G31-72 is elucidated in the examples section. Furthermore, the formulation may be considered non-corrosive when evaluated by the US Occupational Safety and Health Administration OSHA Hazard Reporting Standard Rules (29 CFR 1910.1200 Appendices A and B).

  Furthermore, the cleaning composition is relatively stable when supplied as a liquid and can be considered resistant to segregation and precipitation at temperatures of 120 ° F. and 40 ° F. for at least 6 weeks.

Alkali origin cleaning compositions can include an alkali origin to enhance detergent properties. Generally, alkaline origin refers to a component that causes the composition used to have a pH of at least about 9.5. In general, it is preferred that the use composition be supplied as a mild alkali cleaning composition since it is considered less dangerous than the use composition based on caustic. A mildly alkaline cleaning composition refers to a composition having a pH of about 11.5 or less.

  Alkali sources can be derived from organic or inorganic alkalis such as alkanolamines, alkali metal carbonates, alkali metal hydroxides, phosphates, borates, silicates, or mixtures thereof. Exemplary alkanolamines that can be used include, for example, 2-amino-2-methyl-propanol, monoethanolamine, triethanolamine, diisopropanolamine, or mixtures thereof. Exemplary metal carbonates that can be used include, for example, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium sesquicarbonate, potassium sesquicarbonate, or mixtures thereof. Illustrative alkali metal hydroxides that can be used include, for example, sodium hydroxide or potassium hydroxide. The alkali metal hydroxide can be added to the composition in solid particulate form dissolved in an aqueous solution or a combination thereof. Alkali metal hydroxides are commercially available as falling solids or particulate solids, or as aqueous solutions, for example, as 50 wt% and 73 wt% solutions. Exemplary phosphates that can be used include, for example, phosphoric acid or sodium or potassium polyphosphate.

The buffering alkaline floor cleaning composition can include a buffering agent to adjust the alkalinity level. Basic buffering agents that can be used include bases and alkali metal salts of co-acids. Exemplary bases are sodium bicarbonate, a mixture of sodium bicarbonate and sodium carbonate, disodium hydrogen phosphate, monosodium phosphate, a mixture of disodium hydrogen phosphate and trisodium hydrogen phosphate, borate salts such as sodium tetraborate and borax, And a mixture of carbonate and phosphate. Alkali metal salts or organic amine salts of organic acids can also be used. Examples include potassium or organic amine salts of acetic acid, citric acid, lactic acid or tartaric acid.

The alkaline floor cleaning composition includes a buffer in an amount sufficient to adjust the alkalinity level for the concentrate. Generally the alkaline floor cleaning composition concentrate can include about 0 to about 10 wt% buffer. The buffer can be considered an optional ingredient and need not be included in the solid concentrate. Solid concentrates can be included in an amount of at least about 0.1 wt% when containing a buffering agent. Solid concentrates can contain about 0.1 wt% to about 10 wt% buffer, it can comprise from about 4% to about 6 wt% buffer. Liquid concentrates can contain about 2% to about 10 wt% buffer, from about 3% to about 5 wt% buffer.

Alkaline sources and buffers have a free alkalinity (expressed as Na ₂ O) of approximately 1.5% to approximately 3.5% or approximately 2.0% to approximately 3.4% when the alkaline cleaning composition concentrate is supplied as a liquid, The alkalinity (expressed as Na ₂ O) can be adjusted to be approximately 2.0% to approximately 6.0% or approximately 2.4% to approximately 4.0%. If the alkaline cleaning composition concentrate is supplied as a solid, the alkali source and buffer have a free alkalinity (expressed as Na ₂ O) of about 1.5% to about 5.0% or about 2.4% to about 4.0% A sufficient amount is provided such that the degree (expressed as Na ₂ O) is approximately 2.0% to approximately 10.0% or approximately 6.0% to approximately 10.0%. Furthermore, alkaline cleaning composition concentrates, whether liquid or solid, can be considered as non-corrosive according to the US Occupational Safety and Health Administration OSHA Hazard Notification Standard Rules (29 CRF 1910.1200 Appendices A and B).

The surfactant cleaning composition can include a surfactant selected from an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, or a combination thereof. Exemplary surfactants that can be used are commercially available from a number of sources. For surfactant theory, see Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd edition, volume 8, pages 900-912.

  Effective anionic surfactants in cleaning compositions include, for example, carboxylates such as alkyl carboxylic esters (carboxylates) and polyalkoxy carboxylic esters, carboxylic alcohol ethoxylates, carboxylic nonylphenol ethoxylates, and the like. Kinds: sulfonates such as alkyl sulfonate esters, alkyl benzene sulfonates, alkyl aryl sulfonates, sulfonated fatty acid esters, and the like; sulfated alcohols, sulfated alcohol ethoxylates, sulfated alkylphenols, alkyl sulfates Sulfates, sulfosuccinates, alkyl ether sulfates, and the like; phosphate esters such as alkyl phosphates, and the like. Exemplary anionic surfactants include sodium alkylaryl sulfonates, α-olefin sulfonate esters, and fatty alcohol sulfate esters.

  Effective nonionic surfactants in cleaning compositions include, for example, those having a polyalkylene oxide polymer as part of the surfactant molecule. Such nonionic surfactants are, for example, polyethylene glycol esters of fatty alcohols terminated with benzyl-, methyl-, ethyl-, propyl-, butyl- and other similar alkyl-; no polyalkylene oxides Nonionic surfactants such as alkyl polyglycosides; sorbitan and saccharose esters and their ethoxylates; alkoxylated ethylenediamines; alkoxyls such as ethoxyl alcohol (sulfone group derived L12-6 commercially available from Huntsman) Alcohol, ethoxylpropoxyl alcohol, propoxyl alcohol, propoxyl ethoxylpropoxyl alcohol, ethoxyl butoxyl alcohol, and the like; ethoxylnonylphenol, poly (oxy Tylene) Glycol ether and other similar types; carboxylic acid esters such as glycerol esters and polyoxyethylene esters, fatty acid ethoxyl and glycol esters, and other similar types; diethanolamine condensates, monoalkanolamine condensates, polyoxyethylene fatty acids Carboxylamides such as amides, and other similar types; polyalkylene oxide block copolymers including ethylene oxide / propylene oxide block copolymers such as those commercially available under the trademark PLURONIC (BASF), and other similar types And other similar nonionic compounds. Silicone surfactants such as ABIL B8852 can also be used.

  Amphoteric surfactants that can be used in the cleaning composition include betaine, imidazoline, sultain and propionate.

  The cleaning composition can include a surfactant in an amount of from about 5% to about 65% by weight when supplied as a concentrate. If the concentrate is supplied as a liquid concentrate, the concentrate can contain from about 5 wt% to about 25 wt% surfactant, including about 8 wt% to about 15 wt% surfactant. Can do. If the cleaning composition concentrate is supplied as a solid concentrate, the concentrate can contain from about 20 wt% to about 65 wt% surfactant and includes from about 40 wt% to about 60 wt% surfactant. be able to.

The chelator cleaning composition can include a chelate / sequestering or loading enhancer. The cleaning composition can include a chelating / sequestering agent such as an aminocarboxylate. Exemplary amino carboxylic acid esters include, for example, methyl glycine diacetate, nitrilotriacetate (NTA), ethylenediaminetetraacetate (EDTA), N-hydroxyethyl-ethylenediamine triacetate (HEDTA), diethylenetriaminepentaacetate (DTPA) and iminodiacetic acid Contains alkali metal salt of N-hydroxyethyl.

  Other chelating agents that can find use in this invention include condensed phosphate esters, phosphonate esters, polyacrylate esters, gluconate esters, citrate esters, and the like. In general, chelating agents are molecules that can coordinate (ie, bind) to metal ions commonly found in natural water to prevent the metal ions from harming the cleaning components of the cleaning composition. . In general, chelating / sequestering agents can usually be referred to as a type of additive enhancer. The chelating / sequestering agent can also act as a dosage agent when included in an effective amount.

  Includes sodium and potassium pyrophosphate, sodium tripolyphosphate, sodium hexametaphosphate, and the like. The condensed phosphate ester can assist in coagulating the composition to a limited extent by fixing the free water present in the composition as hydration water.

The composition is 1-hydroxyethane-1,1-diphosphonic acid CH ₃ C (OH) [PO (OH) ₂ ] ₂ (HEDP); aminotri (methylenephosphonic acid) N [CH ₂ PO (OH) ₂ ] ₃ ; Aminotri (methylenephosphonate), sodium salt

；2−ヒドロキシエチルイミノビス（メチレンホスホン酸）ＨＯＣＨ₂ＣＨ₂Ｎ[ＣＨ₂ＰＯ(ＯＨ)₂]₂；ジエチレントリアミンペンタ（メチレンホスホン酸）(ＨＯ)₂ＰＯＣＨ₂Ｎ[ＣＨ₂ＣＨ₂Ｎ[ＣＨ₂ＰＯ(ＯＨ)₂]₂]₂；ジエチレントリアミンペンタ（メチレンホスホン酸エステル）、ナトリウム塩Ｃ₉Ｈ_(28-x)Ｎ₃Ｎａ_xＯ₁₅Ｐ₅（x=7）；ヘキサメチレンジアミン(テトラメチレンホスホン酸エステル)、カリウム塩Ｃ₁₀Ｈ_(28-x)Ｎ₂Ｋ_xＯ₁₂Ｐ₄（x=6）；ビス（ヘキサメチレン）トリアミン（ペンタメチレンホスホン酸）(ＨＯ₂)ＰＯＣＨ₂Ｎ[(ＣＨ₂)₆Ｎ[ＣＨ₂ＰＯ(ＯＨ)₂]₂]₂；及び亜燐酸Ｈ₃ＰＯ₃を含むことが可能である。例示ホスホン酸エステルはHEDP、ATMP及びDTPMPである。ホスホン酸エステルが加えられるときには中和反応による発生熱またはガスはまずないように中和またはアルカリホスホン酸もしくは混合物に加えられるより前にホスホン酸エステルと有機または無機アルカリ起源の組合せは、組成物の凝固が望まれるときに好ましい。ホスホン酸エステルは有機ホスホン酸カリウムまたはナトリウム塩（ホスホン酸カリウム）を含むことができる。ホスホン酸物質のカリウム塩は固体洗浄性薬剤の製造中にホスホン酸を水酸化カリウム水溶液と中和することにより形成されることができる。金属イオン封鎖ホスホン酸剤は、ホスホン酸を中和する水酸化カリウム理論量を供給するために適当比率で水酸化カリウム溶液と組み合わされることができる。およそ1〜およそ50重量％の濃度を有する水酸化カリウムは使用されることができる。ホスホン酸は溶解されるかまたは水様媒体に懸濁されることができ、水酸化カリウムは次に中和目的のためにホスホン酸に加えられることができる。

; 2-hydroxy ethyl imino bis (methylene phosphonic _{acid) HOCH 2 CH 2 N [CH} 2 PO (OH) 2] 2; diethylenetriamine penta (methylene phosphonic _{acid) (HO) 2 POCH 2 N} [CH 2 CH 2 N [CH ₂ PO (OH) ₂ ] ₂ ] ₂ ; diethylenetriaminepenta (methylenephosphonate), sodium salt C ₉ H _(28-x) N ₃ Na _x O ₁₅ P ₅ (x = 7); hexamethylenediamine (tetramethylene Phosphonic acid ester), potassium salt C ₁₀ H _(28-x) N ₂ K _x O ₁₂ P ₄ (x = 6); bis (hexamethylene) triamine (pentamethylenephosphonic acid) (HO ₂ ) POCH ₂ N [( CH ₂ ) ₆ N [CH ₂ PO (OH) ₂ ] ₂ ] ₂ ; and phosphorous acid H ₃ PO ₃ . Illustrative phosphonates are HEDP, ATMP and DTPMP. The combination of phosphonic acid ester and organic or inorganic alkali source is added to the composition prior to neutralization or addition to the alkali phosphonic acid or mixture so that the heat or gas generated by the neutralization reaction is unlikely to be added when the phosphonic acid ester is added. Preferred when coagulation is desired. The phosphonate ester can comprise an organic potassium phosphonate or sodium salt (potassium phosphonate). The potassium salt of a phosphonic acid material can be formed by neutralizing phosphonic acid with an aqueous potassium hydroxide solution during the manufacture of a solid detersive drug. The sequestering phosphonic acid agent can be combined with a potassium hydroxide solution in an appropriate ratio to provide a theoretical amount of potassium hydroxide that neutralizes the phosphonic acid. Potassium hydroxide having a concentration of about 1 to about 50% by weight can be used. The phosphonic acid can be dissolved or suspended in an aqueous medium, and potassium hydroxide can then be added to the phosphonic acid for neutralization purposes.

  For further discussion of chelating agents / soluble complexing agents, see Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Edition, Volume 5, p. 339-366 and See Volume 23, pages 319-320, the disclosure of which is hereby incorporated by reference.

  The cleaning composition concentrate can include a chelating agent in an amount sufficient to provide the desired chelating properties. The cleaning composition concentrate can include a chelating agent in an amount of about 4% to about 30% by weight. If the cleaning composition concentrate is supplied as a liquid concentrate, the concentrate can include about 4 wt% to about 20 wt% chelating agent or about 6 wt% to about 10 wt% chelating agent. . If the cleaning composition concentrate is provided as a solid concentrate, the concentrate can comprise from about 10 wt% to about 30 wt% chelating agent or from about 15 wt% to about 25 wt% chelating agent.

The processing aid cleaning composition concentrate can further include one or more optional processing aids. Such optional processing aids can provide one or more processing benefits during the processing of the solid cleaning product components and / or provide the resulting solid cleaning product with one or more preferred properties. Processing aids suitable for use in the present invention include sodium sulfate, sodium chloride, potassium sulfate, potassium chloride, and urea. In one embodiment, the processing aid comprises anhydrous sodium sulfate or urea.

  Any commercially available processing aid can be used in the present invention. Suitable commercially available processing aids include, but are not limited to, sodium sulfate available from Haarmann & Reimer Corporation, Elkhart, and Mallinckrodt Baker, Inc., Contains urea available from Phillipsburg.

  The cleaning composition concentrate can include one or more processing aids up to approximately 15 weight percent (wt.%) Based on the total weight of the solid cleaning product. The processing aid can be considered an optional ingredient and need not be included in the cleaning composition concentrate. Processing aids can be included in amounts of at least about 0.1% by weight, if included in the cleaning composition concentrate. The liquid concentrate can include approximately 0.1% to approximately 15% by weight processing aid and can include approximately 6% to approximately 12% by weight processing aid. Processing aids can be removed from the solid concentrate if desired.

The hardener alkaline floor cleaning composition concentrate can be supplied as a solid. If the concentrate is supplied as a solid, it can be solidified as a result of the presence of the curing agent. Exemplary curing agents that can be included in the composition and solidify the composition include hydratable inorganic salts of urea, polyethylene glycol, sulfuric acid, acetic acid, carboxylic acid, bicarbonate and phosphate, or mixtures thereof.

  The curing agent can be a compound or compound system, organic or inorganic that contributes significantly to the uniform solidification of the composition. Preferably, the curing agent is co-soluble with the cleaning agent and other active ingredients of the composition, and can provide an effective amount of hardness and / or water solubility to the composition. When the curing agent is mixed and solidified, it can form a homogeneous substrate with the cleaning agent and other components to provide uniform dissolution of the cleaning agent from the solid composition during use.

  The amount of curing agent contained in the cleaning composition concentrate is the composition of the cleaning composition, the intended use of the composition, the amount of water in the cleaning composition concentrate, the dilution water temperature used to form the use composition, water hardness, solids It can vary depending on the physical dimensions of the concentrate, other constituent concentrations, detergent concentrations in the composition, and other similar factors. The amount of curing agent is preferably effective to form a homogeneous mixture under continuous mixing conditions and at or below the melting temperature of the curing agent.

  The curing agent is mixed with the cleaning agent and other components under an ambient temperature of approximately 30-50 ° C and the product is shaped to the desired shape and dimensions after the mixture has been metered out of the mixing facility. It is also preferred that it be cured to a solid form within about 1 minute to about 3 hours, preferably about 2 minutes to about 2 hours, preferably about 5 minutes to about 1 hour to be extruded. A minimal amount of heat from an external source can be applied to the mixture to facilitate processing of the mixture. The amount of curing agent contained in the composition provides the desired ratio of hardness and controlled solubility of the treatment composition when placed in an aqueous medium to achieve the desired ratio of separating the detergent from the solidified composition during use. It is preferable to be effective.

Curing agents are, for example, stearin monoethanol commercially available from Stepan Chemical under the trademark NINOL and commercially available from Skell Chemical Company under the trademark SCHERCO-MID. It can be an amide, such as amide, laurindiethanolamide, and stearindiethanolamide. Alkylamides provide hardness and solubility variability, especially when combined with cationized surfactants. In general, C ₁₆ -C ₁₈ linear aliphatic alkyl amides provide high insolubility with a high degree of hardness. For further discussion of alkylamide curing agents, see Richter US Pat. No. 5,019,346, the disclosure of which is hereby incorporated by reference.

  Alternative curing agents include nonionic surfactant detergents such as ethylene oxide / propylene oxide, such as nonylphenol ethoxylate, linear alkyl alcohol ethoxylate, surfactant commercially available from BASF-Wyandotte under the trademark PLURONIC. Polyethylene glycol (PEG) or propylene glycol compound for use in a cleaning composition comprising. The coagulation rate of a cleaning composition made in accordance with this invention and containing a polyethylene glycol hardener will vary at least in part with the amount and molecular weight of polyethylene glycol added to the composition.

Effective polyethylene glycol compounds according to this invention are, for example, solid polyethylene glycols of the general formula H (OCH ₂ —CH ₂ ) _n OH, where n is greater than 15 and more preferably about 30-1700. including. Useful solid polyethylene glycols are marketed under the trademark Carbowax and are commercially available from Union Carbide. Preferably, the polyethylene glycol is a free-flowing powder or solid in flake form having a molecular weight of approximately 1000-10000, preferably approximately 3000-8000. Suitable suitable polyethylene glycol compounds according to this invention include, for example, PEG 900, PEG 1000, PEG 1500, PEG 4000, PEG 6000, PEG 8000, with PEG 8000 being particularly preferred.

  The curing agent can also be a hydratable material such as anhydrous sodium carbonate, anhydrous sodium sulfate, anhydrous polyphosphonate, etc., or mixtures thereof. Preferably, the hydratable curing agent is used in an alkaline cleaning composition comprising components such as a condensed phosphoric acid hardness sequestering agent and an alkali addition enhancer, provided that, for example, US Patent No. Heile et al. As disclosed in US Pat. No. 4,595,520 and US Pat. No. 4,680,134, the amount of caustic additive enhancer is approximately 5-15% by weight, the disclosure of which is hereby incorporated by reference. According to the present invention, the hydratable curing agent can be hydrated to the extent that the bound free water and liquid emulsion present in the liquid detergent emulsion are solidified or solidified. The amount of hydratable material contained in the cleaning composition treated according to this invention will vary depending on the hydration capacity of other components as well as the percentage of water present in the liquid emulsion.

  Other hardeners that can be used in the cleaning compositions treated according to the invention include, for example, urea, also known as carbamide, starch made water soluble by acid or alkali treatment steps, and heat solidification upon cooling. Contains different minerals to give to the liquid substrate.

  The alkaline cleaning composition concentrate contains 0 to about 20 weight percent curing agent. It will be appreciated that the solidifying agent is an optional ingredient and need not be included in the liquid concentrate. In general, for solid concentrates, it is anticipated that the solid concentrate will contain from about 8 wt% to about 20 wt% curing agent and may contain from about 9 wt% to about 16 wt% curing agent.

Hydrotropes / stabilizers Hydrotropes / stabilizers can be supplied to the liquid concentrate to help stabilize the composition. Exemplary hydrotropes that can be used are sodium xylene sulfonate, sodium toluene sulfonate, sodium naphthalene sulfonate, sodium cumene sulfonate, alkyl diphenyl oxide disulfonate, glycerin, organic diacid, propylene glycol, hexylene glycol, isopropanol , Ethanol, glycol ethers and mixtures thereof. Hydrotropes are selective and can be removed from the concentrate.

  If the concentrate includes a hydrotrope, the hydrotrope can be provided in an amount of about 0.1 wt% to about 10 wt%. In the case of a liquid concentrate, the hydrotrope can be supplied in an amount of about 3% to about 6% by weight. Chelating agents can be removed from the solid concentrate.

The water wash composition concentrate can include water. In general, water can be present to assist in the concentrate flow rate, and water can be present as hydration water. It is anticipated that water can be present in both liquid concentrates and solid concentrates. Generally, the concentrate can contain 0 to about 85% water by weight. Water can be present in an amount of at least about 0.1% by weight when present in the concentrate. In the case of a liquid concentrate, the concentrate can contain about 15% to about 85% water by weight, and can contain about 45% to about 75% water by weight. In the case of a solid concentrate, the concentrate contains 0 wt% water, or approximately 0.1 wt% to approximately 5 wt% water, if present, in approximately 0.4 wt% to approximately 0.8 wt% water. be able to.

  The concentrate is diluted with water (diluted water) to provide a use composition that removes raw oil stains and polymerized stains from the floor. The amount of dilution water can be selected to provide a use composition that has a chelating agent concentration of at least about 100 ppm, at least about 200 ppm, or at least about 250 ppm and provides the desired dirt removal properties.

Additives The solid cleaning product of the present invention may contain one or more additives, providing the desired properties to the cleaning composition. Suitable additives include, but are not limited to, colorants (ie, dyes, pigments, etc.), perfumes, preservatives, antioxidants, UV stabilizers, and combinations thereof. In one desirable embodiment of the invention, the cleaning composition comprises at least one colorant that provides a preferred color and at least one perfume or fragrance that provides a preferred fragrance.

  Various dyes, odorants including fragrances, and other aesthetic extenders can be included in the cleaning composition. Dyes can be used to modify the appearance properties of the composition, for example, Direct Blue 86 (Miles), Fastusol Blue (Mobay Chemical Corp.), Acid Orange 7 (American Cyanamid), Basic Violet 10 ( Sandoz), Acid Yellow 23 (GAF), Acid Yellow 17 (Sigma Chemical), Sap Green (Keystone Analine and Chemical), Mentanil Yellow (Keystone Analine and Chemical), Acid Blue 9 (Hilton) Davis), Sandlan Blue / acid blue 182 (Sandoz), Hisol Fast Red (Capitol Color and Chemical), fluorescein (Capitol Color and Chemical), acid green 25 (Ciba-Geigy), In addition, it can be included as the same type.

  In one embodiment, additives such as colorants, fragrances, antioxidants, UV stabilizers, and preservatives are each independently in an amount of less than about 0.5 wt-% based on the total weight of the solid cleaning product. Exists. In one embodiment, the amount of colorant in the solid cleaning product, when present, ranges from approximately 0.0005 to approximately 0.015 wt-% based on the total weight of the solid cleaning product. If a fragrance or fragrance is present, the amount of fragrance or fragrance can be from about 0.01 to about 0.25 wt% based on the total weight of the solid cleaning product. In one embodiment, when present, the one or more preservatives are present in the solid cleaning product in an amount ranging from about 0.001 to about 0.01 wt% based on the total weight of the solid cleaning product.

  Fragrances or fragrances that can be included in the composition include, for example, terpenes such as citronellol, aldehydes such as amylcinnamaldehyde, jasmine such as C1S-jasmine or jasmar, vanillin, and the like. Including things.

  The concentrate component amount can be selected based on whether the concentrate is supplied as a liquid concentrate or as a solid concentrate. Exemplary ranges for the concentrate components are identified in Table 1. Table 1 additionally includes the component ranges when the concentrate is prepared as a liquid and the component ranges when the concentrate is prepared as a solid.

Titration method: alkalinity expressed as Na ₂ O
A 2.0 gram sample diluted with 100 milliliters of water is titrated with 0.5 normal sulfuric acid to the phenolphthalein and methyl orange endpoints. The phenolphthalein endpoint indicates free alkalinity, and the methyl orange endpoint indicates total alkalinity.

  The alkaline cleaning composition concentrate can be diluted with a dilute solution of water to provide a use composition that exhibits the desired removal of raw oil stains and polymerized contaminants on the floor surface. In general, the alkaline cleaning composition concentrate can be diluted with a sufficient amount of water and contains a chelating agent content of at least about 100 ppm, preferably more than about 200 ppm, more preferably more than about 250 ppm. Supply. The use composition prepared from the alkaline cleaning composition concentrate can then contain a chelating agent amount of at least about 100 ppm, preferably at least about 200 ppm, more preferably about 250 ppm in excess of the desired dirt removal properties. Can be provided.

Example Illustrative concentrates for each individual were prepared by mixing the ingredients identified in Table 2. For Table 2, the component amounts are defined in weight percent. The aluminum corrosion reported in Table 2 in mils / year was measured based on a modified ASTM G31-72 method. The procedure for measuring the aluminum corrosion rate with the modified ASTM G31-72 is described following Table 2.

  By interpreting the data given in Table 2, it can be seen that alkalinity provides increased efficacy for floor dirt removal at higher levels. Thus, it is expected that low alkalinity levels can reach the aluminum corrosion resistance test, but performance may be degraded.

Measurement of Aluminum Corrosion Rate Aluminum corrosion rate can be measured according to ASTM G31-72 and NACE standard TMO 169-76. The method for measuring the aluminum corrosion rate reported in Table 2 can be referred to as ASTM G31-72 modified and can exist and can be carried out as follows:
Equipment:
A water bath or oven that can maintain 113 ° F ± 1.8 ° F (45 ° C ± 1.0 ° C).
Balance wide-mouth glass jar capable of weighing up to 0.1 milligrams, 16 ounces, thermometer aluminum stipulated plate with a lid, 7075-T6 alloy, 1 ”× 2” × 1/16 ”(plate area = 4 square inches)
70% nitric acid
99% isopropanol scissors chemical resistant gloves Procedure:
Add 400 milliliters of the product to be tested to two 16-ounce jars each. Cap and place in a water bath and allow to equilibrate to 113 ° F ± 1.8 ° F (45 ° C ± 1.0 ° C) for 30 minutes.
While the product equilibrates, prepare the metal plate as follows:
For aluminum, the surface is corroded by placing a two-size plate in 70% nitric acid and immersing the plate for 2 minutes, followed by a warm water rinse and finally an isopropanol rinse.
The plate is air dried and weighed to the nearest 0.1 milligram.
Immerse the plate in the heated product for 6 hours. Place the board against the side of the jar. Do not install the board on the bottom. Run only one piece per jar.
Remove the aluminum plate with scissors and chemical-resistant gloves at the end of the test. The aluminum plate should be rinsed with warm water and placed in 70% nitric acid for 2 minutes. Rinse with warm water and then isopropanol.
The plate is air dried and weighed to the nearest 0.1 milligram.
Measure weight loss in milligrams for each plate.
Calculation:
MPY (mil / year) corrosion = (weight reduction (mg) x 534) / (4in ² (plate area) x 6 hrs (time) x 2.71 g / cm ³ (metal density))

  The foregoing specification, examples and data provide a complete description of the manufacture and use of the composition of the invention. Since many embodiments of the invention can be made without departing from the spirit and spirit of the invention, the invention resides in the claims hereinafter appended.

Claims (7)

(a) Water 15 wt.% to 44 wt.%;
(b) Surfactant 5 wt.% to 25 wt.%;
(c) Chelating agent 4 wt.% to 20 wt.%;
(d) Buffer 2 wt.% to 10 wt.%; and
(e) Sufficient alkali source to provide 1.5% to 3.5% free alkalinity (Na ₂ O equivalent) and 2.0% to 6.0% total alkalinity (Na ₂ O equivalent);
A liquid form alkaline cleaning composition concentrate for cleaning an aluminum-containing object to be cleaned , wherein the buffer is an acid, a base, an alkali metal salt or an organic amine salt of an acid complementary to the base, Or a combination thereof, wherein the alkaline source comprises 2-amino-2-methyl-propanol, monoethanolamine, triethanolamine, diisopropanolamine, or mixtures thereof, and the buffer and the alkaline source The said alkaline cleaning composition concentrate whose total content is 8.5 wt.% Or more. The buffer includes: boric acid; sodium carbonate; sodium bicarbonate; monosodium phosphate; disodium hydrogen phosphate; trisodium hydrogen phosphate; sodium tetraborate; sodium borate; borax; sodium salt of acetic acid, citric acid, lactic acid or tartaric acid The alkaline cleaning composition concentrate of claim 1, comprising at least one selected from the group consisting of: potassium salts or triethanolamine salts; and mixtures thereof. The alkaline cleaning composition concentrate of claim 2, wherein the buffering agent comprises boric acid and at least one selected from the group consisting of sodium tetraboride, sodium borate and borax. The alkaline cleaning composition concentrate according to any one of claims 1 to 3, wherein the aluminum-containing object to be cleaned is a floor or a plate. The alkaline cleaning composition concentrate according to any one of claims 1 to 4, further comprising 0.1 to 15 wt.% Of processing aid. 6. The alkaline cleaning composition concentrate of claim 5 , wherein the processing aid comprises sodium sulfate, sodium chloride, potassium sulfate, potassium chloride, urea, or mixtures thereof. (a) 15 wt.% to 44 wt.% water;
(b) 5 wt.% to 25 wt.% surfactant;
(c) 4 wt.% to 20 wt.% chelating agent;
(d) 2 wt.% to 10 wt.% buffer; and
(e) Sufficient alkali source to provide 1.5% to 3.5% free alkalinity (Na ₂ O equivalent) and 2.0% to 6.0% total alkalinity (Na ₂ O equivalent);
Diluting the alkaline cleaning concentrate in liquid form with a sufficient amount of water to provide the use composition with a chelating agent concentration of at least 100 ppm,
However, the buffer includes an acid, a base, an alkali metal salt or an organic amine salt of an acid complementary to the base, or a combination thereof, and the alkali source includes 2-amino-2-methyl-propanol, mono And ethanolamine, triethanolamine, diisopropanolamine, or a mixture thereof, and the total content of the buffer and the alkali source is 8.5 wt.% Or more; and A method for cleaning an aluminum-containing bed comprising applying to the aluminum-containing bed for removal of polymerized dirt.