WO2010119342A1 - Composition détergente et procédé de préparation associé - Google Patents

Composition détergente et procédé de préparation associé Download PDF

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Publication number
WO2010119342A1
WO2010119342A1 PCT/IB2010/000984 IB2010000984W WO2010119342A1 WO 2010119342 A1 WO2010119342 A1 WO 2010119342A1 IB 2010000984 W IB2010000984 W IB 2010000984W WO 2010119342 A1 WO2010119342 A1 WO 2010119342A1
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WIPO (PCT)
Prior art keywords
detergent composition
methyl ester
detergent
ester sulphonate
accordance
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PCT/IB2010/000984
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English (en)
Inventor
Prasun Mukherjee
Soumen Sensarma
Soumi Chattaraj
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Tata Chemicals Limited
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Publication date
Application filed by Tata Chemicals Limited filed Critical Tata Chemicals Limited
Publication of WO2010119342A1 publication Critical patent/WO2010119342A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/143—Sulfonic acid esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates

Definitions

  • the disclosure relates to a detergent. More particularly, the invention relates to a detergent composition including methyl ester sulphonate and a method of manufacturing the same.
  • Dry detergent compositions are formed by mixing soda ash with one or more surfactants.
  • other additives such as builders, brighteners, soil release agents, perfumes etc are also added to detergents.
  • soda ash since soda ash has to be manufactured, the cost of manufacturing soda ash adds to the cost of the detergent.
  • methyl ester sulphonate As methyl ester sulphonate is easily obtainable from renewable sources such as natural oil or fats and due to its biodegradable nature, it may be preferable over other surfactants conventionally used in detergent formulations. Furthermore, the use of certain commercial grades of methyl ester sulphonate as active detergent may result in a considerably low price detergent formulation.
  • methyl ester sulphonate present in conventional detergent formulations hydrolyzes in the presence of moisture and high pH detergent components including builders such as carbonates, and bases such as sodium hydroxide.
  • builders such as carbonates, and bases
  • sodium hydroxide Such chemical instability of methyl ester sulphonate in an alkaline environment (pH>9.0) results in poor detergency performance and reduced application flexibility.
  • methyl ester sulphonate tends to form lumps it cannot be effectively mixed with the other detergent constituents and thus, addition of methyl ester sulphonate as such in the detergent deteriorates the free flowing nature of the detergent.
  • the invention relates to a detergent composition
  • a detergent composition comprising micronized methyl ester sulphonate, the micronized methyl ester sulphonate including a flow aid; and a source of bicarbonate.
  • the invention also relates to a detergent composition
  • a detergent composition comprising micronized methyl ester sulphonate and crushed refined soda fines.
  • Figure 1 tabulates comparative particle size distribution data of methyl ester sulphonate, micronized methyl ester sulphonate and micronized methyl ester sulphonate along with a flow aid.
  • Figure 2 tabulates the ratio of methyl ester sulphonate to sulphonic acid in accordance with an embodiment.
  • Figure 3 tabulates comparative detergency of methyl ester sulphonate, milled methyl ester sulphonate and linear alkyl benzene sulphonic acid (non dispersion), a dispersion of milled methyl ester sulphonate and linear alkyl benzene sulphonic acid in accordance with an aspect.
  • Figure 4 tabulates the composition of beneficiated crushed refined soda ash fines developed for detergent formulation in accordance with an aspect of the invention in comparison with synthetic soda ash.
  • Figure 5 tabulates the results of analysis of pH and percent methyl ester sulphonate in detergent formulations 1, 2 and 3 in accordance with embodiments of the invention in comparison with a control detergent formulation.
  • Figure 6 tabulates detergent formulations in accordance with embodiments in comparison with soda ash control formulations.
  • Figure 7 tabulates the results of tests carried out on samples of detergent formulations in accordance with embodiments of the invention in comparison with soda ash control formulations.
  • Figure 8 tabulates the result of detergency test carried out on samples of detergent formulations with enzymes in accordance with an embodiment against soda ash control formulations.
  • FIG. 9 schematic illustration of the method of manufacturing a detergent and preparation of detergent in accordance with an embodiment of the invention.
  • a detergent composition using methyl ester sulphonate is described. More particularly, a detergent composition using micronized methyl ester sulphonate is described.
  • the invention further relates to a detergent composition comprising crushed refined soda fines, the crushed refined soda fines are typically obtained from the effluent generated from a soda ash production plant using trona soda as raw material.
  • the micronized methyl ester sulphonate as used in the detergent includes a flow aid.
  • the detergent may further comprise a dispersing agent and other constituents including but not limited to salt, secondary surfactant, optical brightener, colour, anti caking agent, fragrance, anti redeposition agent, speckles, enzymes, builders or the like.
  • the detergent composition comprises micronized methyl ester sulphonate including a flow aid, a dispersing agent and at least one bicarbonate source.
  • the detergent composition comprises micronized methyl ester sulphonate including a flow aid, a dispersing agent and crushed refined soda fines.
  • the detergent comprises micronized methyl ester sulphonate including a flow aid, a dispersing agent, at least one enzyme and crushed refined soda fines.
  • the detergent comprises micronized methyl ester sulphonate including a flow aid, a dispersing agent, at least one enzyme, a salt, a secondary surfactant, an optical brightener, a colour or dye, an anti caking agent, fragrance, an anti redeposition agent, speckles, a builder and crushed refined soda fines.
  • a process for preparing a detergent containing methyl ester sulphonate is also described.
  • a process for preparing a detergent, in accordance with the invention involves micronization of methyl ester sulphonate, mixing the micronized methyl ester sulphonate with a dispersing agent and adding the dispersion so obtained to other detergent constituents.
  • the micronization of methyl ester sulphonate includes the addition of a flow aid.
  • the process for preparing a detergent includes the addition of a bicarbonate source to the detergent.
  • methyl ester sulphonate used in the present formulation is an alpha-sulpho fatty acid ester, which is generally of the following formula (I): RCHCOOCH 3 (I)
  • R is an alkyl chain having 4 to 24 carbon atoms, preferably 12 to 18 carbon atoms, and M + is a monovalent or divalent alkali metal.
  • R is a C 8 , Ci 0 , Ci 2 , C H , C I6 or Ci 8 alkane and M is typically an alkali metal, such as sodium or potassium.
  • methyl ester sulphonate is a sodium methyl ester sulphonate, such as a sodium C 8 to Ci 8 methyl ester sulphonate.
  • the methyl ester sulphonate is a C 8 , Ci 0 , Ci 2 , C H , C I6 or Ci 8 methyl ester sulphonate.
  • the methyl ester sulphonate comprises a mixture of different chain length methyl ester sulphonate esters such as a mixture of C 8 , do, Ci 2 , C ⁇ , Ci 6 and/or Ci 8 methyl ester sulphonate.
  • Such a mixture of methyl ester sulphonate can be prepared from a natural fat or oil, or synthetic fatty alcohols.
  • methyl ester sulphonate is a mixture of methyl ester sulphonates having different chain lengths.
  • Suitable mixtures of such methyl ester sulphonate include about C 8 , Ci 0 , C 12 and/or C H methyl ester sulphonate combined with Ci 6 and/or Ci 8 methyl ester sulphonate in ratios from about 1 : 99 to about 99: 1. hi another embodiment, the mixture comprises about 1 to 99 weight % of Ci 6 methyl ester sulphonate and about 99 to about 1 weight % of Ci 8 methyl ester sulphonate.
  • Methyl ester sulphonate can be prepared from a variety of sources including beef tallow, palm kernel oil, palm kaernel (olein) oil, palm kernel (stearin) oil, coconut oil, soybean oil, canola oil, caster oil, cohune oil, coco butter, linseed oil, palm oil, white grease, cotton seed oil, corn oil, rape seed oil, yellow grease or mixtures thereof.
  • sources including beef tallow, palm kernel oil, palm kaernel (olein) oil, palm kernel (stearin) oil, coconut oil, soybean oil, canola oil, caster oil, cohune oil, coco butter, linseed oil, palm oil, white grease, cotton seed oil, corn oil, rape seed oil, yellow grease or mixtures thereof.
  • Suitable fatty acids to make methyl ester sulphonates include, but not limited to, caprylic (C 8 ), capric (Ci 0 ), lauric (C 12 ), myristic (C 14), myrisloleic (C14), palmitic (Ci 6 ), palmitoleic (Ci 6 ), stearic (Ci 8 ), oleic (Ci 8 ), linoleic (C i 8 ), linolenic (Ci 8 ), ricinoleic (Ci 8 ), arachidic (C 20 ), gadolic (C 2 o), behenic (C 22 ) and erucic (C 22) fatty acids.
  • the detergent comprises about 2 to 8 weight %, preferably 4 to 6 weight % of methyl ester sulphonate.
  • a flow aid is added to methyl ester sulphonate.
  • the flow aid is added to improve the granularity of the product, for example by preventing aggregation and/or caking of the granules.
  • detergent formulation comprising flow aid exhibits higher solubility and cleaning performance.
  • Suitable flow aid according to the present invention includes, but not limited to crystalline or amorphous alkali metal silicates, aluminosilicates including zeolites, citrates, dicamol, calcite, diatomaceous earths, talc or silica.
  • the flow aid is precipitated silica.
  • the cleaning performance (% detergency) of detergent including methyl ester sulphonate as commercially available in the formulation has been found to be very low.
  • the experimental results showed that the cleaning performance (% detergency) of detergent formulation including methyl ester sulphonate as such was 18.50 only.
  • the methyl ester sulphonate is micronized prior mixing it with other detergent constituents.
  • the micronized methyl ester sulphonate is not completely free flow and forms small lumps, hi accordance with an aspect, methyl ester sulphonate is micronised with addition of a flow aid, such as precipitated silica.
  • addition of about 0.25 to 2.0 weight % precipitated silica during micronization of methyl ester sulphonate is required so as to obtain free flow micronized methyl ester sulphonate.
  • 100 gm of methyl ester sulphonate is micronized along with 0.50 gm of precipitated silica.
  • the particle size distribution of micronized methyl ester sulphonate along with the flow aid in comparison with micronized methyl ester sulphonate without addition of a flow aid, and methyl ester sulphonate is illustrated.
  • the detergent composition further comprises a dispersing agent.
  • the dispersing agent is used to suspend solid particles and to prevent settling thereof so as to obtain a suspension' capable of mixing effectively with other detergent constituents.
  • the dispersing agent may be a non-surface active polymer.
  • the dispersing agent may be a surfactant.
  • the dispersing agent is linear alkyl benzene sulfonic acid.
  • the detergent composition in accordance with an aspect contains 8 to 15 weight % of a dispersing agent, preferably 8 to 10 weight % of dispersing agent.
  • micronized methyl ester sulphonate including precipitated silica is mixed with linear alkyl benzene sulfonic acid so as to obtain a dispersion thereof.
  • ratio of micronized methyl ester sulphonate to linear alkyl benzene sulfonic acid in accordance with an aspect is illustrated.
  • ratio of micronized methyl ester sulphonate to linear alkyl benzene sulfonic acid is 2:3.
  • the detergent comprises a bicarbonate source.
  • the bicarbonate source is crushed refined soda fines.
  • the crushed refined soda fines are wastes that are generated from a soda ash plant using trona soda for the production of soda ash.
  • the effluent that comes out from the overflow of washery of a soda ash plant is known as crushed refined soda fines slurry.
  • the liquid is drained out to leave crushed refined soda fines that become dry by sunlight.
  • the crushed refined soda fines is treated and purified before it is used in a detergent formulation.
  • the crushed refined soda fines are beneficiated by the sieving the raw crushed refined soda fines to obtain crushed refined soda fines having a particle size distribution of 2 mm or less, drying the crushed refined soda fines to reduce the moisture content, and reducing the particle size of the crushed refined soda fines to below 500 microns.
  • the crushed refined soda fines must be dried in a manner that does not substantially deplete the sodium bicarbonate content.
  • Figure 4 the composition of beneficiated crushed refined soda fines in comparison with synthetic soda ash is illustrated.
  • crushed refined soda fines may be added as a part or complete substitute for the soda ash.
  • crushed refined soda fines are added as a complete substitute for soda ash.
  • the detergent composition contains 25 to 40 weight % of crushed refined soda fines and preferably the detergent composition contains about 30 weight % of crushed refined soda fines.
  • Crushed refined soda fines included in the detergent formulation may act as a bicarbonate source so as to control the pH of the detergent formulation at higher range (> pH 9) and to stabilize methyl ester sulphonate, which is prone to degradation at higher pH.
  • generation of hydroxyl ions occurs due to dissolution of alkaline salts in water and these ions may affect the effectiveness of methyl ester sulphonate.
  • the bicarbonate present in the detergent formulation provides a buffering effect.
  • the bicarbonate ions react with hydroxyl ion (generated from salt hydrolysis) to form carbonate ion and water (II). This allows methyl ester sulphonate to be effective even at higher pH levels.
  • a higher pH detergent has better cleaning performance.
  • addition of bicarbonate lowers the pH of the detergent, as seen in the experimental results tabulated in Figure 5.
  • Detergent compositions 1, 2 and 3 having different concentrations of bicarbonate are developed in accordance with embodiments of the invention.
  • a control composition without any bicarbonate is also prepared and compared with the compositions 1, 2 and 3.
  • the amount of bicarbonate added to the composition is important, as excess bicarbonate tends to lower the pH in a manner that negates the advantage of addition of the bicarbonate.
  • the composition 3 containing 1.6 weight % of bicarbonate showed the highest amount of methyl ester sulphonate (10.65 %) available in the composition at higher pH (pH 10.86).
  • the detergent composition may contain salt.
  • the detergent composition contains 15 to 35 weight % of the salt and preferably the detergent composition contains 20.4 to 32.4 weight % of salt. Any suitable soluble salt may be added to the detergent composition.
  • the detergent composition may contain sodium chloride as salt. Sodium chloride helps in removing bloodstains in the garment and helps to retain color.
  • the detergent composition may contain builder.
  • Builders may comprise of organic or inorganic compounds. Builders added to the detergent composition help in dispersion and suspension of particulate matters, maintenance of an alkaline environment required for efficient cleaning, emulsification of organic oils and fats, softening of water, prevention of redeposition of soil and inhibition of corrosion of metals in processing and washing equipments.
  • Suitable builders for the detergent formulation according to the present invention include, but not limited to, silicate containing builders such as polysilicates, alkali metal silicates, wholly or partially crystallite layer-form silicate, phyllosilicates or disilicates, silicated salt i.e.
  • a salt such as a carbonate, sulphate, alkali metal carbonate, alkali metal sulphate, ammonium carbonate, bicarbonate, sesquicarbonate or mixture thereof, that has been treated with a silicate salt; aluminosilicate containing builders such as zeolites; and phosphate containing builders such as alkali metal phosphates, orthophosphates, polyphosphates, triopolyphophate, pyropolyphosphate, or polymer phosphates; carbonate builders such as soda ash; oxygen releasing builders such as sodium perborate, sodium percarbonate. These builders may be used alone or in combination. In accordance with an embodiment, sodium tripolyphosphates may be used as a builder.
  • sodium silicate may be used as a builder.
  • the detergent composition comprises sodium silicate having a ratio of SiO 2 to Na 2 O substantially in the range of 3.0 to about 3.10.
  • the detergent composition may contain 2 to 4 weight %, preferably 3 weight % of builder.
  • the detergent composition may contain 6 to 8 weight %, preferably 7 weight % of builder.
  • the detergent composition may comprise a secondary surfactant.
  • the secondary surfactant is added to the detergent formulation as a supplement to methyl ester sulphonate in respect of lather and foam generation.
  • Any cationic, anionic or neutral surfactant may be added to the detergent composition as secondary surfactant including but not limited to long-chain amino condensates with ethylene oxide and quaternary ammonium compounds, alpha olefin sulphonate, alkyl aryl sulphonic acids, alkyl sulphonic acids, salts of alkyl sulfuric acids, fatty acid derivatives and polyethylelene oxide ether condensates of alkylphenols, ethoxylated aliphatic alcohols, carboxylic esters or any combination thereof.
  • the surfactants may be used alone or in combination with one another.
  • the secondary surfactant is sodium lauryl sulphate.
  • a mixture of linear alkyl benzene sulphonic acid and sodium salt of sulphonic acid may be used as a secondary surfactant.
  • the detergent composition may contain 1 to 3 weight %, preferably 2 weight % of secondary surfactant.
  • the detergent composition may contain 3 to 5 weight %, preferably 4 weight % of secondary surfactant.
  • optical brightener may be added to the detergent composition.
  • Optical brighteners that may be added to the detergent include but are not limited to naphthotriazolylstilbenes, benzoxazolyl, benzimidazoyl, naphthylimide, or diaminostilbene disulfonates.
  • the optical brightener is tetrabenzotetra azaporphine.
  • the detergent composition may contain 0.05 to 0.25 weight % of optical brightener and preferably 0.1 to 0.2 weight % of optical brightener.
  • the detergent composition in accordance with the present invention may further comprise an anti caking agent.
  • the anti caking agent is incorporated in the detergent to make the detergent free flow.
  • the detergent contains about 7 to 20 weight %, preferably 8 to 15 weight % of anti caking agent.
  • the anti caking agent is dolomite, preferably micronized dolomite having particle size distribution preferably less than 300 micron.
  • an inorganic salt may be added to the detergent formulation. A mixture of two or more salts may also be added.
  • the detergent may contain about 4 to 8 weight %, preferably 6 weight % of inorganic salt.
  • the inorganic salt is an alkali metal salt of sulphuric acid.
  • the inorganic salt is sodium sulphate.
  • an anti redeposition agent may be added to the detergent composition.
  • the anti redeposition agent is added to the detergent to improve strength of the cotton fibre of fabrics on repeated wash.
  • sodium carboxy methyl cellulose may be added as an anti redeposition agent.
  • the anti redeposition agent may be added to the detergent composition in the range of 1 to 5 weight % and preferably in the range of 2 to 4 weight %.
  • the detergent composition may contain enzyme. Enzymes are added to the detergent to remove sweat gland secretions, dead skin cells, sebaceous gland secretions and blood stains.
  • the detergent composition contains at least one enzyme.
  • the enzyme used in the detergent composition may include but is not limited to protease, amylase, lipase, cellulose or any combination thereof.
  • the enzymes used in the detergent composition are effective at higher pH range.
  • the detergent composition may contain 0.2 to 0.6 weight % enzyme and preferably 0.4 weight % enzyme.
  • color or dye may optionally be added to the detergent composition to improve the aesthetic quality of detergent.
  • the detergent composition may contain 0.03 to 0.05% weight % and preferably 0.04% by weight of color. Any suitable dye or color may be used.
  • phthalocyanine blue is used as a color in the detergent composition.
  • the detergent composition may contain other additives such as fragrance and speckles.
  • the detergent composition may contain 0.05 to 0.075 weight% of fragrance.
  • the detergent composition may contain 1 to 3 weight%, preferably 2% of speckles.
  • the speckles are soda base speckles.
  • Detergent formulations, in accordance with an aspect of the invention are prepared and their composition in comparison with control formulations using soda ash is tabulated in Figure 6. The results of tests carried out on such detergent against the soda ash control formulations are tabulated in Figure 7. It is observed that detergent formulations prepared in accordance with embodiments of the invention performed better than the control formulations when the parameters like surface tension, detergency, foam length, and differential flow rate are considered.
  • the pH of the detergent formulation is in the range of 9.0 to 1 1.0, may preferably be from 9.25 to 10.86.
  • Example 1 The invention will be illustrated by the following examples which are not to be construed as limiting the invention in any way:
  • Example 1
  • the detergent composition comprises of between 25 to 35 weight % of crushed refined soda fines, 15 to 35 weight % of salt, 1 to 3 weight % of sodium lauryl sulphate, 5 to 8 weight % sodium sulphate (inorganic salt), 1 to 3 weight % dry sodium salt of sulphonic acid, 0.05 to 0.25 weight % optical brightener, 0.03 to 0.05 weight % color, 7 to 20 weight % micronized dolomite (anti caking agent), 8 to 12 weight % sulphonic acid, 0.05 to 0.1 weight % fragrance, 0.5 to 5 weight % precipitated silica (flow aid), 2 to 8 weight% methyl ester sulphonate, 1 to 5 weight % carboxy methyl cellulose (anti redeposition agent), 6 to 8 weight % sodium tripolyphosphate, 1 to 3 weight % speckle, and 0.2 to 0.5 weight % enzyme.
  • This formulation is suited for both hard and soft water.
  • Example 2 Example 2:
  • the detergent composition comprises of between 25 to 35 weight % of crushed refined soda fines, 15 to 35 weight % of salt, 1 to 3 weight % sodium lauryl sulphate, 1 to 3 weight % dry sodium salt of sulphonic acid, 0.05 to 0.25 weight % optical brightener, 0.03 to 0.05 weight % of color, 7 to 20 weight % micronized dolomite (anti caking agent), 1% to 5% sodium silicate, 8 to 12 weight % sulphonic acid, 0.05 to 0.1 weight % fragrance, 0.5 to 5 weight % precipitated silica (flow aid), 2 to 8 weight % methyl ester sulphonate, 1 to 5 weight % carboxy methyl cellulose (anti redeposition agent), 1 to 3 weight % speckles, and 0.2 to 0.5 weight % enzyme.
  • This formulation is suited for both hard and soft water.
  • a process of preparing a detergent in accordance with an embodiment involves micronization of methyl ester sulphonate by milling along with a flow aid (101).
  • the flow aid is precipitated silica.
  • the micronized methyl ester sulphonate along with the flow aid is charged into a mixer (102) that also receives a dispersing agent (103).
  • the micronized methyl ester sulphonate along with the flow aid is mixed with the dispersing agent so as to generate a dispersion thereof.
  • the dispersing agent is sulphonic acid.
  • An optical brightener is added into the mixer (104).
  • Crushed refined soda fines obtained from the effluent generated during washing of trona soda is benef ⁇ ciated by sieving through 1 mm sieve (105), grinding (106), followed by sieving through 250 micron sieve (107) and drying (108).
  • the crushed refined soda fines so obtained (109) and salt (1 10) are charged in a ribbon mixer.
  • a colour or dye is added into the mixture (1 1 1).
  • the methyl ester sulphonate dispersion (1 12) along with a builder (1 13) is added into the ribbon mixture.
  • the builder is sodium silicate.
  • a second surfactant (114), such as sodium lauryl sulphate, an inorganic salt (1 15), such as sodium sulphate, an anti redeposition agent (1 16), such as sodium carboxy methyl cellulose and a second builder (117), such as sodium trio polyphosphate are simultaneously added into the mixture.
  • an anti caking agent is charged into the mixture (118).
  • the anti caking agent is dolomite.
  • the flow aid such as silica (119). Fragrance is also added into the mixture (120).
  • the product is immediately discharged from the ribbon mixer and is subjected to milling in a cage mill (121) and sieving through lmm sieve (122). The oversized particles are subjected to further milling (123).
  • the product so obtained is mixed with enzyme (124) and speckles (125) and the final product so obtained is packed (126).
  • the micronization of methyl ester sulphonate along with the flow aid is continued for 1 to 5 minutes.
  • the micronized methyl ester sulphonate including silica is mixed with the dispersing agent while agitating the dispersing agent continuously by stirring.
  • the dispersion so obtained is mixed with other detergent constituents preferably by spraying.
  • methyl ester sulphonate dispersion is sprayed within 10 to 20 seconds, preferably 15 seconds while continuing the mixing.
  • the salt is mixed for 30 seconds to 2 minutes, preferably for 1 minute.
  • secondary surfactant, inorganic salt, anti redeposition agent, and a second builder may be charged simultaneously in the ribbon mixture while continuing the mixing.
  • the charging time may vary from 5 to 20 seconds, preferably 10 to 15 seconds.
  • the time for mixing the anti caking agent varies from 2 to 8 seconds, preferably 7 seconds.
  • the color is mixed for 1 to 3 minutes, preferably for 2 minutes.
  • the detergent composition as described is suitable for use in both soft and hard water.
  • Crushed refined soda fines obtained from effluent generated during washing of trona soda is beneficiated through sieving, grinding and drying.
  • the process further involves milling of 6 kg methyl ester sulphonate with addition of 2 kg precipitated silica.
  • the milled methyl ester sulphonate along with the precipitated silica is charged into 10 kg sulphonic acid where methyl ester sulphonate gets completely dispersed in the sulphonic acid.
  • 0.2 kg optical brightener is then added while continuing the mixing.
  • 30 kg beneficiated crushed refined soda fines and 20.4 kg salt are charged first in a ribbon mixer keeping the mixer on and mixed for 1 minute.
  • Milled methyl ester sulphonate so prepared along with 7 kg sodium tripolyphosphate are charged within 15 seconds while continuing the mixing.
  • 2 kg dry sodium salt of sulphonic acid, 2 kg sodium lauryl sulphate, 6 kg sodium sulphate, and 4 kg sodium salt of carboxy methyl cellulose are simultaneously added to the mixture keeping the mixing on and the charging time varies from 10 to 15 seconds.
  • 8 kg micronized dolomite is charged into the mixture and mixed for 5 seconds. This is followed by further dosing of substantial amount of precipitated silica spread over the whole mass to make the product free flow.
  • 0.075 kg fragrance is then injected into the mixture.
  • the product is immediately discharged from the ribbon mixer.
  • the product is then charged to cage mill for mixing and size reduction.
  • the product is screened through 1 mm sieve.
  • the product so obtained is mixed with 0.4 kg enzyme and 2 kg speckles in a blender to obtain the detergent.
  • the detergent is then packed.
  • Crushed refined soda fines obtained from effluent generated during washing of trona soda is beneficiated through sieving, grinding and drying.
  • the process further involves milling of 4 kg methyl ester sulphonate with addition of 1 kg precipitated silica.
  • the milled methyl ester sulphonate along with the precipitated silica is charged into 8 kg sulphonic acid where methyl ester sulphonate gets completely dispersed in the sulphonic acid.
  • 0.1 kg optical brightener is then added while continuing the mixing.
  • 30 kg beneficiated crushed refined soda fines and 32.4 kg salt are charged first in a ribbon mixer keeping the mixer on and mixed for 1 minute. 0.04 kg color is charged into the mixture and mixed for 2 minutes.
  • Milled methyl ester sulphonate so prepared along with 3 kg sodium silicate are charged within 15 seconds while continuing the mixing.
  • 2 kg sodium lauryl sulphate and 2 kg sodium salt of carboxy methyl cellulose are simultaneously added to the mixture keeping the mixing on and the charging time varies from 10 to 15 seconds.
  • 15 kg micronized dolomite is charged into the mixture and mixed for 5 seconds. This is followed by further dosing of substantial amount of precipitated silica spread over the whole mass to make the product free flow.
  • 0.075 kg fragrance is then injected into the mixture.
  • the product is immediately discharged from the ribbon mixer.
  • the product is then charged to cage mill for mixing and size reduction.
  • the product is screened through 1 mm sieve.
  • the product so obtained is mixed with 0.4 kg enzyme and 2 kg speckles in a blender to obtain the detergent.
  • the detergent is then packed.
  • a detergent composition comprising micronized methyl ester sulphonate, the micronized methyl ester sulphonate including a flow aid; and a source of bicarbonate.
  • Such detergent composition(s) wherein the source of bicarbonate is trona soda or crushed refined soda fines.
  • a detergent composition comprising micronized methyl ester sulphonate and crushed refined soda fines.
  • Such detergent composition(s) wherein the micronized methyl ester sulphonate includes precipitated silica as a flow aid includes precipitated silica as a flow aid.
  • Such detergent composition(s) comprising 2 to 8 weight percentage of micronized methyl ester sulphonate.
  • Such detergent composition(s) comprising 25 to 40 weight percentage of crushed refined soda fines.
  • Such detergent composition(s) comprising 8 to 15 weight percentage of a dispersing agent.
  • Such detergent composition(s) wherein the dispersing agent is linear alkyl benzene sulphonic acid or its derivative.
  • Such detergent composition(s) wherein the ratio of methyl ester sulphonate to the dispersing agent is substantially 2:3.
  • Such detergent composition(s) comprising 15 to 35 weight percentage of a salt.
  • Such detergent composition(s) comprising 7 to 20 weight percentage of an and caking agent.
  • Such detergent composition(s) comprising 1 to 5 weight percentage of a secondary surfactant.
  • Such detergent composition(s) wherein the secondary surfactant is sodium lauryl sulphate.
  • Such detergent composition(s) comprising 0.05 to 0.25 weight percentage of an optical brightener.
  • Such detergent composition(s) comprising 2 to 8 weight percentage of a builder.
  • Such detergent composition(s) wherein the builder is sodium silicate or sodium triopolyphosphate.
  • Such detergent composition(s) comprising 0.2 to 0.6 weight percentage of enzyme.
  • Such detergent composition(s) comprising 1 to 5 weight percentage of an anti redeposition agent.
  • Such detergent composition(s) comprising 1 to 3 weight percentage of speckles.
  • Such detergent composition(s) comprising 4 to 8 weight percentage of an inorganic salt, preferably sodium sulphate.
  • Such detergent composition(s) wherein the crushed refined soda fines have particle size distribution of 2 mm or less.
  • Such detergent composition(s) wherein the crushed refined soda fines is beneficiated to retain sodium bicarbonate.
  • crushed refined soda fines provides a substitute for synthetic soda ash used in conventional detergent formulation.
  • micronized methyl ester sulphonate including a flow aid shows higher solubility in water, thereby exhibiting improved detergency performance compared to the conventional detergent formulations using methyl ester sulphonate.
  • the dispersion of the micronized methyl ester sulphonate in the manufacture of the detergent along with the use of secondary surfactant generates the lather and foam required for improved cleaning performance.
  • the present detergent formulation based on methyl ester sulphonate and crushed refined soda fines are effective in both hard and soft water system.
  • the dispersion of methyl ester sulphonate helps in efficient mixing of micronized methyl ester sulphonate with the other constituents of the detergent thereby leading to better cleaning performance compared to conventional detergents using methyl ester sulphonate.
  • crushed refined soda fines as a bicarbonate source also helps in preventing degradation of methyl ester sulphonate at higher pH, thereby maximizing the utilization of methyl ester sulphonate in the detergent.
  • beneficiated crushed refined soda fines used in the detergent formulation are also less expensive compared to synthetic soda ash used in conventional detergents.
  • the detergent composition in accordance with an aspect is capable of providing a complete packaged product to the consumers of detergent powder for their daily requirement of fabric wash.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention a pour objet une composition détergente comprenant du sulfonate d'ester méthylique micronisé, le sulfonate d'ester méthylique micronisé comprenant une aide à l'écoulement; et une source de bicarbonate.
PCT/IB2010/000984 2009-04-15 2010-04-30 Composition détergente et procédé de préparation associé WO2010119342A1 (fr)

Applications Claiming Priority (2)

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IN977/MUM/2009 2009-04-15
IN977MU2009 2009-04-15

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WO2010119342A1 true WO2010119342A1 (fr) 2010-10-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6130193A (en) * 1998-02-06 2000-10-10 Precision Fabrics Group, Inc. Laundry detergent compositions containing silica for laundry detergent sheets
US20030199412A1 (en) * 2002-04-17 2003-10-23 Gargi Gupta Fragrance containing cleaning product
EP1726636A1 (fr) * 2005-03-03 2006-11-29 The Procter & Gamble Company Compositions de lavage
EP1882731A1 (fr) * 2006-06-16 2008-01-30 The Procter and Gamble Company Compositions de lavage
WO2008071519A1 (fr) * 2006-12-13 2008-06-19 Henkel Ag & Co. Kgaa Préparation de granulats d'oxyde d'amine et leur mise en œuvre
US20100005596A1 (en) * 2008-07-11 2010-01-14 Annette Kay Bryan Whitening Granular Laundry Detergent

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6130193A (en) * 1998-02-06 2000-10-10 Precision Fabrics Group, Inc. Laundry detergent compositions containing silica for laundry detergent sheets
US20030199412A1 (en) * 2002-04-17 2003-10-23 Gargi Gupta Fragrance containing cleaning product
EP1726636A1 (fr) * 2005-03-03 2006-11-29 The Procter & Gamble Company Compositions de lavage
EP1882731A1 (fr) * 2006-06-16 2008-01-30 The Procter and Gamble Company Compositions de lavage
WO2008071519A1 (fr) * 2006-12-13 2008-06-19 Henkel Ag & Co. Kgaa Préparation de granulats d'oxyde d'amine et leur mise en œuvre
US20100005596A1 (en) * 2008-07-11 2010-01-14 Annette Kay Bryan Whitening Granular Laundry Detergent

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