MXPA97007984A - Safe retrieval compositions for the superfic - Google Patents

Abstract

Hard surface scrubbing cleaners having a surface-active agent, a water-soluble carbonate-bicarbonate soluble water / alkalinity mixture, preferably bleach, optionally pH regulator and / or minor components, said compositions combine the removal properties of dirt and stains of a strong active chlorine bleach agent and a bleach-stable surfactant in an abrasive cleaner having desirable surface safety

Description

SURFACE SAFE EXPOSURE COMPOSITIONS BACKGROUND OF THE INVENTION FIELD OF THE INVENTION The present invention relates to soldered open LVOS beef cleaners, which preferably contain bleach. The demand for scrubbing detergent compositions adapted to clean hard surfaces has been increasing. These compositions, when designed for the retail consumer market, must maintain their bleaching effectiveness during ordinary periods of storage and use. An extremely difficult problem is to provide effective hard surface cleaning detergent compositions for a variety of applications. Some agents designed to assist in abrasive cleaning also tend to deposit on hard surfaces that are being cleaned, thus leaving an unpleasant film or turbidity. Thus, there is a continuing need for hard surface scouring products that are chemically and physically stable, which are capable of safely cleaning a variety of surfaces and effectively cleaning a variety of soils. It has surprisingly been discovered that by combining particular water-soluble inorganic salts, it can be achieve effective cleaning of a variety of soils while maintaining good surface safety.

BRIEF DESCRIPTION OF THE INVENTION b The present hard surface scrubbing compositions comprise: A. from about 0.5% to about 5%, preferably from about L% to about K% and most preferably from about 1.7% to about 3%. of a stable bleach detergent surfactant, preferably an ammonium detergent surfactant, or one which will be described hereinafter; B. from about 10% to about 99%, preferably from about 50% to about 99% and most preferably from about 90% to about 99%, of an abrasive / alkalinity material which is a mixture of carbonate and bicarbonate salts soluble in water, preferably alkali metal salts, most preferably Sodium, the carbonate to bicarbonate ratio being from about 0.3: 1 to about 10: 1, preferably from about 0.3: 1 to about 1: 1, and most preferably from about 0.4: 1 to about 0.65: 1; 25 C. from 0% to about 4%, preferably from about 0.5% to about 3%, and very preferably from about 0.7% to about 1.5% by weight of a bleaching agent, preferably a bleaching agent; and D. from 0% to about 10% by weight of a pH regulating agent, water and / or minor ingredients. The agent of bleach-stabilant surfactant is preferably a mixture of either a water soluble parafamic sulfonate detergent surfactant or a detergent surfactant of its fonate or alkylbenzene, with an alkyl sulfate salt detergent surfactant, said agents detergent surfactants containing from about 8 to about 18 carbon atoms in the alkyl group. The abrasive material comprises water-soluble bicarbonate having a particle diameter in which from about 50% to about 100%, preferably from about 80% to about 100%, most preferably from about 95% to about 100% of the particles. particles are within the range of about 30 to about 100, preferably about 45 to about 90 microns. The bleaching agent can be any active chlorine bleach compound that produces a hypochlo- type species in the aqueous solution.

DETAILED DESCRIPTION OF THE INVENTION The scouring cleaning compositions of the present invention contain a detergent surfactant, preferably a stable bleach detergent surfactant; the abrasive / carbonate / bicarbonate alkalinity source specified; preferably hypochlop- tic bleach and an optional pH regulating agent and / or minor ingredients. Each of these components of the composition and the preparation of the composition are described in detail hereinafter.

A. Bleach-stable surfactant agent From about 0.5% to about 5% by weight, preferably from about 1% to 4% by weight, most preferably from about 1.7% to about 3% by weight of the present compositions comprise a compound of bleach-stable surfactant agent is preferable. Such surfactants are necessary in scrubbing cleaners such as those of the present invention to make such compositions effective for removal of soils and stains from hard surfaces. The surfactant selected for use in the present compositions should be stable against chemical decomposition and oxidation by the strong active chlorine bleaching agent also preferably present. Consequently, the The surfactants of the present invention preferably do not contain functionalities (such as ether linkages, misaturation, some aromatic structures or hydroxyl groups) that are susceptible to oxidation by the hypochlorite species found preferable in the present compositions. Thus, many of the surfactant materials commonly used in the prior art, eg, olefin sulfonates, alkylglycol ether sulfonates, alkali metal sulphates and alkyl sulphates, are preferably avoided in the compositions of the present invention. non-ionic surface-active agents ethoxides. Stable bleach surfactants that are especially resistant to hypoclope oxidation form two major groups. One such class of bleach-stable surfactants are water-soluble alkyl sulfates containing from about 0 to 18 carbon atoms, preferably from about 8 to 16 carbon atoms in the alkyl group. The alkyl sulphates are the water soluble salts of sulfated fatty alcohols. They are produced from natural or synthetic fatty alcohols containing from about 8 to 18 carbon atoms, preferably from about 8 to about 16 carbon atoms. Natural fatty alcohols include those produced by reducing the glycerides of fats and oils that occur naturally. Fatty alcohols can also be produced synthetically, for example, by Oxo process. Examples of suitable alcohols that can be used * in the manufacture of alkyl sulfate include decyl, auric, auric, styicl and stearl alcohols, and mixtures of fatty alcohols derived by reducing the glycols of tallow and coconut oil. Specific examples of alkyl sulfate salts that can be used in the present compositions < Jetergent.es include lauriL sodium alkyl sulfate, esteapl sodium alkyl sulfate, paliniti sodium alkyl sulfate, sodium decyl sulfate, sodium alkyl sulfate rnipstii, potassium lauryl alkyl sulfate, esteapl potassium alkyl sulfate, potassium decyl sulfate , potrnitii potassium alkyl sulfate, potassium alkyl sulfate rninstii, sodium dodecyl sulfate, potassium dodecyl sulfate, tallow alkyl potassium sulfate, tallow sodium alkyl sulfate, sodium coconut alkyl sulfate, coco potassium alkyl sulfate, and mixtures of these surfactants. The highly preferred alkyl sulfates are sodium coconut alkyl sulfate, potassium coconut alkyl sulfate, potassium lauryl sulfate and sodium lauryl sulfate. A second class of bleach-stable surfactant materials operable in the present invention are the water-soluble sulphonate surfactants. These materials have the general formula R-SO3M, wherein R is an alkyl or alkyl benzene group containing from about 8 to about 18, preferably from about 10 to about 16 carbon atoms in the alkyl. Examples of suitable sulphonate compounds of this type include: sodium alkyl benzenesulfonate of Cio-16 V parafmsul sodium fonate of Cio-iß. The ratio of sulfate detergent surfactant to sulphonate is from about 0.15: 1 to about 10: 1, preferably from about 0.15: 1 to about 5: 1, most preferably from about 0.25-1 to about 1: 1. . Other tensioning agents <The stable bleach jets include the rnononous long chain amine oxide detergent surfactant having a long alkyl chain containing from about 8 to about 18 carbon atoms, preferably from about 10 to about 16 carbon atoms. carbon, and most preferably from about 10 to about 14 carbon atoms. The other two groups are short chain, preferably containing from 1 to about 4 carbon atoms, most preferably methyl groups. The main limitation is that the surfactant does not react with any present bleaching agent. This is not a concern if the surfactant is protected, or if the bleaching agent is protected, is not present or is not very reactive.

B. Abrasive / carbonate / bicarbonate alkalinity material The compositions contain from about L0% to about 99%, preferably from about 50% to about 99%, and most preferably from about 90% to about 99% of a mixture of salts carbonate and bicarbonate solvents in water, preferably alkali metal, most preferably sodium salts, the carbonate to bicarbonate ratio being from about 0.3: 1 to about 10: 1, preferably from about 0.3: 1 to about 1: 1 and most preferably from about 0.4: 1 to about 0.65: 1. The abrasive material comprises water-soluble bicarbonate having a particle diameter in which from about 50% to about 100%, preferably from about 80% to about 100%, most preferably from about 95% to about 100% of the particles they are within the range of about 30 to about 100, preferably about 45 to about 90 microns. The abrasive material also comprises water-soluble carbonate salts. The particle size for this material may be one in which from about 50% to about 100%, preferably from about 75% to about 95%, most preferably from about 80% to about 95% of the particles are within the scale from about 20 to about 100, preferably from about 20 to about 7b, most preferably from about 20 to about 60 microns. The ratios and / or amounts of carbonate and bicarbonate are essential to provide a combination of safety on the surface and effective cleaning of an age range of soils. The carbonate level has to be at least about 10%, preferably at least about 15%, and most preferably at least about 25%, to provide the desired level of cleaning in greasy soap impurity layer foulants. Similarly, the carbonate level can not be more than about 70%, preferably not about 50% and most preferably not more than about 40% to have the desired level of reserve alkalinity over a pH of about 9.5. Surprisingly, the correct particle size of the bicarbonate is essential to have a good surface security. If the particle size is about 100 microns, the surface safety is affected. On the other hand, if the typical bicarbonate size sold with a particle size of approximately 25 microns is used, the cleaning effectiveness is seriously compromised. As used herein, all particle sizes are percentages by weight unless otherwise indicated. The size of the carbonate particles is not so critical, since the normal particle size of approximately 50 microns is satisfactory.

Sodium salts of bicarbonate and carbonate are preferred, but other salts such as potassium and / or lithium can also be used.

C. Bleaching agent From about 0% to about 4% by weight, preferably from about 0.5% to 3% and most preferably from about 0.7% to about 1.5% by weight of the present compositions comprise an agent of bleaching, preferably of the type that produces a hypochlocite species in aqueous solution. The hypochlopto ion is represented chemically by the formula 0CI-. The hypochlorite ion is a strong oxidizing agent and for this reason the materials that produce these species are considered powerful bleaching agents. The strength of an aqueous solution containing hypochlorite ion is measured in terms of the available chlorine. This is the oxidant power of the solution measured by the solution's ability to release iodine from an acidified iodine solution. A hypochlo- pt ion has the oxidizing potency of two chlorine atoms, that is, a molecule of chlorine gas. At lower pH levels, the aqueous solutions formed by dissolving hypochlorite-producing compounds contain active chlorine partially in the form of hypochlorous acid portions and partially in the form of hypochlorite ions. At pH levels of more than 10, that is, at levels L L of pH < In the present compositions, essentially all the active chlorine is in the form of a hypochlorite ion. Those bleaching agents which produce a kind of hypochlocite in aqueous solution include the alkali metal and alkaline earth metal hypocloptes, hypochlorite addition products, chloramines, chloprins, chloramines and cloprnides. Specific examples of compounds of this type include sodium hypochlocite, potassium hypochlocite, calcium monobasic hypochlocite, dibasic magnesium hypoclope, didactic chlorinated dodecah phosphate, potassium dichloroisocyanurate, sodium dicloroisocyanurate, 1,3-dichloro-5, 5- d? rnet? lh? dranto? na, N-chlorosulfarnide, chloramine T, diclorarnin T, chloramine B and dichlorarnin B. A preferred bleaching agent for use in the compositions of the present invention is sodium dichlorocyanurate. The majority of the hypochlorite bleaching agents described above are available in solid or concentrated form and are dissolved in water during the synthesis of the compositions of the present invention. Some of the above materials are available as aqueous solutions. Other bleaching agents may be used if effectiveness and / or cost is compromised. For example, it is possible to use activated peroxide as a bleaching material.

D. pH regulating agent and additional and optional minor components 1. Additional pH regulating agent An additional pH regulating agent can be used in amounts ranging from 0% to approximately 10%, preferably from about 0% to 5% and most preferably from 0% to about 3% by weight. The present compositions may comprise an additional inorganic pH regulating agent that is capable of maintaining the pH of the composition within the range of about 0.5 to 11; preferably from about 9 to 9.5. Maintaining the pH of the composition within this scale serves to improve the performance of the composition. The additional pH-regulating agent in the present invention can be used as a bleaching-stable material or as a mixture of materials which have the effect of altering the pH of the composition and placing it within the desired scale while keeping it there. Such materials may include, for example, inorganic water-soluble salts, such as sesquicarbonates; silicates, p-phosphates, phosphates, tetraborates and mixtures thereof. Examples of materials that can be used either alone or in combination as the pH regulating agent herein include sodium sesquicarbonate, sodium silicate, tetrapotassium pyrophosphate, thapsodium phosphate, anhydrous sodium tetraborate, sodium tetraborate. 1J pentahí ratado and sodium tetraborate decahydrate. The preferred pH regulating agents for use herein are not phosphates. As will be described hereinafter, it is highly preferred to include in the present compositions a material that acts as a builder, that is to say a material that reduces the concentration of magnesium ion and / or free calcium in a solution. n aqueous containing agent surfactant. Some of the above-described materials of the additional pH regulating agent component also serve as builder materials. Such compounds as phosphates, especially the condensed phosphates such as pyrophosphates and tppoli phosphates, and polycarboxylates such as citrates, succinates, etc. , they are of this type. Other pH regulating agent components such as silicates and tetraborates do not perform any detergent-improving function. Since the presence of a detergency builder in the present compositions is highly desirable, it is preferred that the additional pH buffer agent contains at least one compound capable of acting as a detergency builder, i.e., capable of decreasing the content of the builder. calcium and / or magnesium ion free from an aqueous solution containing such ions. 2. Optional materials In addition to the previously described components, The present scrubbing compositions may contain a choice of other non-essential materials to improve their performance, stability or aesthetic appearance. Such materials include optional foam suppressors, non-pH regulating detergent compounds, coloring agents and perfumes. The foam suppressors are especially useful to improve the ease of rinsing and finally resulting sand. Highly branched fatty acids, silicates and polymers, also including finely divided plastic materials, can be used as foam suppressors. Although, as mentioned above, some of the pH regulating agents described above do work as improved detergency compounds, it is possible to add other stable bleach detergency compounds which, either alone or in combination with other salts, do not regulate the pH within the desired pH scale required of the pH regulating agent. Optional and typical builder compounds that do not necessarily regulate the pH within the essential pH range are certain hexarnetaphosphates and polyphosphates. Specific examples of such optional pH regulating materials include sodium tppoliphosphate, potassium tripolyphosphate, and potassium hexarnethaphosphate. The conventional coloring agents and perfumes can also be added to the present compositions to improve their aesthetic appearance and / or the L5 Acceptance by the consumer. Of course, these materials should be those varieties of dye and perfume which are especially stable against degradation caused by strong active chlorine bleaching agents. If present, the optional materials described above generally comprise no more than about 5% by weight of the total composition.

Preparation of the Composition The scrubbing compositions of the present invention can be prepared by mixing the above-described essential and optional components together at appropriate concentrations in any order by any conventional means normally used to form particle mixtures. However, it is also desirable to mix the compositions using particles formed as part of a premix step. It is especially desirable to prepare the particulate surfactant with inorganic salts. The invention also comprises the method of cleaning a hard surface comprising applying an effective amount of the composition described herein to said hard surface with an effective amount of water and carving said surface with a cleaning implement. Suitable cleaning implements are those known in the art such as rags, sponges, non-woven fabrics, paper towels, etc.

The cleaning compositions of the present invention are illustrated by means of the following examples. All the parts, relationships, percentages, etc. of the present are by weight and all numerical limits are approximations b within the normal limits of the analytical determination, unless otherwise indicated.

EXAMPLE 1 A pre-mixture of detergent of the following composition is prepared. Objet .LVO (pa ri -.es) Alkylbenzenesulfone or L5 of linear Na of C? O ~ i4 (NaLAS) 1., 30 Soda ash 25. .00 0 Na acetate 1., 52 Alqu l aul de Na de Water 0., 22 Other * minor components 0. .10 Total parts of the pre-mixture 29., 00 0 Such premix is prepared as follows in a reaction worm mixer with the following order of addition. Raw material added Parts Soda Ash 26.20 HLAS / Acetic acid 2.38 5 NaAs 0.91 i ( There is a loss of approximately 0.49 parts of CO2 and the mixture is approximately 0.76% moisture. A hard surface scrubbing cleaner of the following composition is prepared in a worm mixer for the main mix. Order of addition Parts of the composition Sodium bicarbonate 69.64 Pre-order c1a déterge te 2 .00 Sodium dichlorocyanurate (NaDCC) 1.01 Humidity (NaDCC) 0.15 Perfume 0.20 Parts of the determined product 100.00 Such composition exhibits negligible bleaching and / or decomposition of the surfactant during a storage period of 6 weeks. Such a composition is especially effective in removing stains and dirt from hard surfaces and does not leave a noticeable film after the composition has been used and the hard surfaces have been rinsed. Compositions of substantially identical physical, chemical and performance properties are carried out when, in the composition of Example 1, the sodium dichloroiecyanurate bleaching agent is replaced with 1,3-dichloro-b, 5-drnethexyltandoma, N-chlorosulfarnide, chloramine T, dichloride T, Chloramine B or Diclorarnin B in sufficient quantities to provide an equivalent amount of chlorine available.

EXAMPLE II Composition prepared by dry mixing Order of addition Parts Composition objective Sodium bicarbonate 69.76 69.76 Soda ash 25.00 25.00 NaLA 1.45 1.30 NaAs 0.91 0.86 Na acetate 0.51 1.52 Humidity (Det) 0.20 NaDCC 1.16 1.01 Perfume 0.20 0.20 Humidity (NaDCC) 0.00 0.15 Finished product 100.00 100.00 The performance of these products is evaluated using the following tests.

Dirt removal performance Dirt removal performance is measured by two tests.

Greasy soap layer test The greasy soap layer test represents the body's soap / dirt layer in the bathrooms. The team and Necessary materials are as follows: 1. 4 panels of Cherokee porcelain (7.6 cm x 38 crn); 2. l homemade custard; 3. 1 sprinkler-Preval 1; 4. oven; 5. steam hood - ventilated; 6. straight-line washing capacity machine and 7. Flocel cellulose sponges cut at 9.52 crn x 4.8 cm when wet. The dirt is a mixture of carbon black, calcium stearate and artificial body dirt (ABS). Pre-clean the clean panel with isopropyl alcohol before soiling it and dry it with a paper towel. The oven is preheated to 180 ° C. In the steam hood, each panel is sprayed with a solution of dirt using an even movement back and forth. Each "pass" represents a complete dirt application. After 8 passes, the plate is rotated 180 degrees. 8 more passes are sprayed onto the plate for a total of 16 sprays. The soiled panels are placed spontaneously on a single oven rack positioned as close as possible to the center of the oven and cooked for 20 minutes. The time regulator starts after placing the panels in the preheated oven. After the cooking time is complete, the oven panels are removed and allowed to cool. When the panels are cold you can test the performance. The dirty plate is placed inside the milling machine. The sponges are moistened with city water at 27 ° C and are fully squeezed. Sponges of weights and approximately equal sensations are chosen for the test. After Choosing the sponges, they are left in a 2000-liter flask of city water at 27 ° C until they are ready to be used. The product of career setting (control product) is always the first product to be tested. The sponge carrier is centered over the area of the plate that will be tested. They are placed "'grns. of product directly in the area and apply 1 rnl of water pair-to form an ast that covers the entire area of the sponge. Let it soak for 10 seconds. The soaked sponge (18-22 grn) is placed in the holder (1300 grn), placed in the holder and the milling machine is activated. The control is cleaned at 80% cleaning. This number of runs is used for all products in the test for that particular plate. The race number must be determined separately for each plate. The tested area is immediately rinsed with water at 27 ° C, taking care not to wet the unproven portion of the paneL. Dry with a paper towel. An absolute score scale (0-6) is used and there are 3 expert judges, 3 replications of each treatment are graduated. Grades are entered through a normal computer program to determine the significance.

Hard oily kitchen dirt (Naturally aged kitchen dirt or dirt "KD") The equipment and materials needed are: l. 4 plates .'1 Cherol-'ee porcelain (7.6 crn x 38 crn); 2. Homemade liqueur; J. dirt KL); 4. Aluminum thin sheet; 5. maqui a capacity of washing in a straight line and 7. Flocel cellulose sponges cut at 9.52 ein x 4.8 crn (when they are wet). KD dirt comprises Crisco oil and particulate / greasy dirt with carbon black. Pre-clean each clean panel with isopr-opyl alcohol before soiling and drying with a paper towel. Measure L.25 grns. of dirt KD on a piece of thin aluminum and expand the dirt on the thin sheet of aluminum so that it disperses uni ormemente. If a roller has never been used, it should be saturated and the roller should be bound with approximately 1 teaspoon of dirt. Uniformly coat the paint roller with dirt by rotating it in the scattered KD dirt. Turn the dirt on the panels until you get a uniform coating of dirt on each panel. Place the soiled panels on a pLana surface, room temperature, 40-50% humidity and allow to age for 6 to 10 days. Place the dirty plate inside the milling machine. The sponges are moistened with city water at 27 ° C and are completely squeezed. Sponges of approximately equal weights and feel are chosen for the test. After choosing the sponges, they are left in a 2000-liter flask with city water at 27 ° C until they are ready to be used. The product of career setting (control product) always 7 0 It is the first product that is tested. Choose a sponge and squeeze it until it is only damp. Place the sponge on the scale and weigh 2 grns / 2 ml of product on the sponge. Inject 2 mis. of water on the product to form a paste if powders are used. Disseminate the product evenly over the middle third of the sponge. Place the sponge on the sponge-holder that weighs approximately 300 grams, place it inside the carrier and turn on the machine. The number of strokes used for a certain test is determined by cleaning with the race fixer product until the surface has been cleaned by almost 80%. The rest of the products in that test are used later with the same number of races. The number of runs required for a certain test may vary depending on the fixing of the products used, the hardness of the dirt, etc. The tested area is rinsed immediately after it has been carved, taking care not to soil the unproved portion of the panel. Dry- with a paper towel.

Graduation procedure Use an absolute score scale (0-6) and have 3 expert judges who graduate three replications of each treatment. Enter the grades through an absolute production capsule computer program to determine the significance. 2 Surface safety evaluation This test is used to determine the relative safety for the surfaces of the products < It tests you during a period of extended use. The equipment is: 1. a Gardner straight line washing machine; 2. Test panels and 3. Sponge. The test panels are cut into pieces of 76.2 mm per 40.6 mm and inserted into the Gardner machine. This machine is designed to simulate the carving action applied to surfaces during cleaning. The apparatus consists of a base panel to support the panels that will be carved, a carrier that travels back and forth through the panel and a sponge holder u is weighted to apply a constant pressure. A predetermined amount of water and product is applied to the sponge and spread evenly over the 1/3 half of a sponge. The sponge is then placed on the sponge-holder and on the carrier. The automatic counter of the machine is then programmed to the predetermined number of runs (50). After 50 races, the sponge is rinsed and water and product are applied to the other side of the sponge for another treatment of 50 runs and then discarded. The panel is rinsed every 100 runs. A carrier that exerts 7 grns / crn2 of pressure is used. The use of products is 2 grams on a sponge that weighs 35 grns. (sponge + water). When the panels are not treated, they are only rinsed and to determine the effect of the water the sponge is soaked only with ? í Water. To graduate, the test panels are visually graded using a normal graduation scale of 0-4. The treatments are carried out randomly on the panels according to a random table: 0 - equal; l = appears to be damaged / discolored; 2 - it is damaged / discolored; 3 = it has a lot of damage / discoloration; and 4 = it has a lot of damage / decoloring prayer. The visual graduation and the brightness readings become Lime and after 200, 400, 800, L200 and 1600 runs. Visual grading uses a SAS statistical program that accepts absolute degrees and calculates a mean and at least a significant difference.

Final result sand This method of rinsing simulates the consumer's final result when rinsing with abrasive cleaners. A key factor in rinsing powdered cleaners is the sand / residual film left by these products. Therefore, this test method focuses on the sandy residue left after rinsing the product with water from a black ceramic mosaic. The necessary materials and equipment are black ceramic mosaics (black mosaics are used to better see the residual product differences); 2. Flocel cellulose sponges cut at 51 x 51 x 22 rnrn (when wet); 3. flask of 2000 rnl and 4. Balance.

Pre-clean each mosaic with isopropyl alcohol before use and dry with a paper towel. The sponges are moistened with city water at 47.7 ° C and are fully squeezed in. The sponges of approximately equal weight and feel are chosen for the test.The sponges are placed in a 2000 ml flask with city water at 47.7 ° C. until they are ready to be used, a sponge is smelled, the excess water is squeezed, placed on the scale, and 2 grns of product and 2 ml of water are added, a paste is formed from the product and it expands. over the entire surface.The product is applied with the sponge on the surface with uniform pressure, 4 strokes through and 4 strokes down.The tiling is tilted 30 degrees.The mosaic is rinsed with varying amounts (10-20-40 water from the city at 47.7 ° C. Water is directed with a syringe through the upper part of the mosaic to better control the amount and direction of water over the entire surface. to simulate different degrees of rinsing per pair of l consumers, eg, amount of water / pressure and percentage of area rinsed. The limits are set to approximate a minimum of one rinsing on the surface and a maximum equal to the amount of rinsing necessary to completely clean the tile with the best rinsing product. Mosaics are allowed to air dry or a blow dryer is used gently. The test panels are visually graduated using a normal 0-6 graduation scale. The treatments are carried out randomly on the plates according to the random table in which 0 = no sand / film; 1 - there seems to be a little sand / film; 2 = there is some sand / film; 3 - there is a lot of sand / film; 4 = there is enough rena / film; 5 = there is a lot of sand / film and 6 - it has not been cleaned at all. Visual graduations are entered through a SAS statistical program that accepts absolute grades and calculates a mean to determine the signi fi cations.

Claims (10)

NOVELTY OF THE INVENTION CLAIMS

1. - A solid hard surface scrubbing cleaning composition comprising: A) from about 0.5% to about 5% of a bleach-stable surfactant; Ti) from about 10% to about 99% of an abrasive / alkalinity material which is a mixture of water soluble carbonate and bicarbonate salts, the carbonate to bicarbonate ratio being from about 0.3: 1 to about 10: 1, the bicarbonate salts have a particle size in which from about 50% to about 100% have a diameter of from about 30 to about 10 microns; C) from 0% to about 4% by weight of a bleaching agent; and D) from 0% to about 10% by weight of a pH-regulating agent and / or minor ingredients.

2. A composition according to claim 1, wherein the bleach-stable surfactant is selected from the group consisting of: water soluble paraffin sulphonate detergent surfactant; water soluble alkylbenzene sulphonate detergent surfactant; alkylsulfate detergent surfactant and mixtures thereof. 3.- A composition in accordance with the .'8 claim 2, wherein the bleach-stable surfactant is a mixture of either a water soluble paraffin sulphonate detergent surfactant or an alkyl benzene sulphonate detergent surfactant with an alkyl sulfate surfactant salt, from about 8 to 10 carbon atoms in said groups to the quilo. 4. A composition according to claim 2, wherein the bleaching agent is sodium dichloroisocyanurate. 5. A composition according to claim 4, wherein the carbonate to bicarbonate ratio is from about 0.3: 1 to about 10: 1. 6. A composition according to claim 5, wherein the diameter of the bicarbonate particles is such that from about 80% to about 100% are within the range of from about 45 microns to 90 microns. 7. A composition according to claim 1, wherein the bleaching agent is sodium dichloroisocyanurate. 8. A composition according to claim 7, wherein the carbonate to bicarbonate ratio is from about 0.3: 1 to about 10: 1. 9. A composition according to claim 8 wherein the diameter of the particles of bicarbonate is that from about 80% to about L00% are within the range of about k 5 microns to 90 microns. 10. A composition according to claim 1, wherein the level of the diameter of the bicarbonate particles is such that from about 80% to about L00% are within the range of about 45 microns to 90 microns. Ll. - A composition according to claim 1, wherein the alkyl sulfate surfactant is selected from the group consisting of sodium lauryl alkylsul ate, stearyl sodium alkylsulfate, palrnytyl sodium allylsulfate, sodium decyl sulfate, sirnil sodium alkylsulfate, potassium alkylsulfate, potassium stearyl alkylsulfate, potassium decylsulfate, potassium alkylsulfate palrnitium, potassium alkylsulfate potassium sulfate, sodium dodecyl sulfate, potassium sulphate sodium, potassium tallow alkyl sulfate, sodium alkoxide sodium sulfate , coconut sodium alkyl sulphate, coco potassium alkylsulfate and mixtures thereof. 12. A composition according to claim 11, which contains alkyl benzene sulphonate having from about 10 to about 14 carbon atoms in the alkyl chain. 1

3. A composition according to claim 1, which contains a pH regulating agent '10 additional, selected from the group consisting of rnetasi sodium licate, trisodium phosphate, pyrophosphate of rapotasium and rnezcLas of them. 1

4. A composition according to claim 1, wherein the bleaching agent is selected from the group consisting of potassium dichlorocyanurate, sodium dichloroisocyanurate, 1,3-d? Chloro-5, 5-dirnet iihidantoma, N-chlorosulfarnide, chloramine T, diclorarnin T, chloramine B, diclorarnin B and mixtures thereof. 1

5. A composition according to claim 1, wherein the concentration of the abrasive / alkalinity material is from about 90% to about 99% by weight; the carbonate to bicarbonate ratio is from about 0.4: 1 to about 0.65: 1; and from about 95% to about 100% of the bicarbonate particles have a diameter of from about 45 to about 90 microns. 1

6. A composition according to claim 15, wherein the alkyl sulfate surfactant is selected from the group consisting of laupl sodium alkyl sulfate, stearate sodium alkyl sulfate, sodium alkylsulfate, sodium decyl sulfate, Sodium alkyl sulphate, potassium lauryl alkylene sulfate, potassium stearyl alkylsulfate, potassium decylsulfate, potassium alkylsulfate palmitii, potassium alkylsulfate rnipstii, sodium dodecylsulfate, potassium dodecyl sulfate, tallow potassium alkylsulfate, tallow sodium alsulfate, coconut sodium alkylsulfate, coco potassium alkyl sulphate and mixtures thereof. 1

7. A composition according to claim 16, which contains alkyl benzene sulphonate having from about 10 to about 14 carbon atoms in the alkyl chain. 1

8. A composition according to claim 15, which contains an additional pH regulating agent selected from the group consisting of sodium citrate; potassium citrate; sodium rnetasilicate; tpsodium phosphate; tetrapotassium pyrophosphate and mixtures thereof. 1

9. A composition according to claim 1, containing water-soluble alkyl sulfate having from about 8 to 16 carbon atoms in the alkyl chain. 20. A solid hard surface scrubbing cleaning composition comprising: A) from about 1.7% to about 3% of a bleach-stable surfactant; B) from about 90% to about 99% of an abrasive / alkalinity material which is a mixture of water soluble carbonate and bicarbonate salts, the carbonate to bicarbonate ratio being from about 0.4: 1 to about 0.65: 1, bicarbonate salt has a particle size in which from about 95% to about 100% has a diameter of from about / i 5 to about 90 microns; Or from 0.5% to about 3% by weight of a bleaching agent; and D) from 0% to about 5% by weight of a pH regulating agent and / or minor ingredients. 21. The method of cleaning a hard surface comprising applying an effective amount of the composition in accordance with Claim 20 to said hard surface with an effective amount of water and carving said surface with a cleaning implement.