CN104411812A - Process for the production of a detergent granule, detergent granule and detergent composition comprising said granule - Google Patents

Process for the production of a detergent granule, detergent granule and detergent composition comprising said granule Download PDF

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Publication number
CN104411812A
CN104411812A CN201380036325.9A CN201380036325A CN104411812A CN 104411812 A CN104411812 A CN 104411812A CN 201380036325 A CN201380036325 A CN 201380036325A CN 104411812 A CN104411812 A CN 104411812A
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weight
detergent
acid
detergent composition
sodium carbonate
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F.E.帕查
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Unilever NV
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Unilever NV
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/08Silicates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents
    • C11D11/02Preparation in the form of powder by spray drying
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00Special methods for preparing compositions containing mixtures of detergents
    • C11D11/04Special methods for preparing compositions containing mixtures of detergents by chemical means, e.g. by sulfonating in the presence of other compounding ingredients followed by neutralising
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/10Carbonates ; Bicarbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3784(Co)polymerised monomers containing phosphorus

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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

There is provided a process for the production of a detergent granule comprising at least 40% by weight of an anionic surfactant and suitable for use as a granular detergent composition or a component thereof, which process comprises the steps of (i) mixing an anionic surfactant precursor with a source of alkali to form a neutralised paste, (ii) adding alkali metal salt of a polycarboxylic acid, up to 5% by weight alkaline silicate, polycarboxylate polymer and sodium carbonate to form a slurry and (iii) spray-drying the obtained slurry to form a detergent granule having an amorphous phase content of more than 60% by weight, whereby the molar ratio of the alkali metal salt of a polycarboxylic acid to sodium carbonate is in range of 0.4 to 1.6. There is also provided a spray-dried detergent granule comprising at least 40% by weight of an anionic surfactant, alkali metal salt of a polycarboxylic acid, up to 5% by weight alkaline silicate, polycarboxylate polymer and sodium carbonate and suitable for use as a granular detergent composition or a component thereof, obtainable by the process of the present invention. A third aspect is a detergent composition comprising such granules.

Description

The manufacture method of detergent particles, detergent particles and comprise the detergent composition of described particle
the technical field of invention
The present invention relates to washing powder, the field of especially washing powder and their manufacture.More particularly, it relates to the anion surfactant the manufacture method being suitable as the detergent particles of granular detergent composition or its component that comprise at least 40 % by weight in a first aspect.Second aspect, the present invention relates to comprise at least 40 % by weight anion surfactant and the detergent particles obtained by described method.The third aspect, the present invention relates to the detergent composition comprising this type of particle.
background
The present invention relates to the manufacture of the detergent particles comprising the surfactant system that effectively washing is provided.The present invention be more particularly directed to the method being manufactured this type of particle by spraying dry water paste.
Granular detergent products is prepared or powder is known by the spraying dry of water paste.Such method comprise preparation comprise 20 to 60 % by weight water water paste, then under high pressure atomized slurry with is formed droplet, then in convection current spray-drying tower drying these materials step.Typical tower entrance and exit temperature is respectively 250-400 DEG C and 80-120 DEG C.
Such as, EP-A-1 914 297 discloses the preparation method of the spray-dried laundry powder with 426 grams per liters or lower loose density, wherein this spray-dried laundry powder comprises anionic detersive surfactant and 0 % by weight to 10 % by weight zeolite builders and 0 % by weight to 10 % by weight phosphate builders, and wherein the method comprising the steps of:
A () preparation comprises the applicable spray-dired water paste of 30 % by weight to 60 % by weight water and 40 % by weight to 70 % by weight non-water materials, wherein said non-water material comprises inorganic component and organic constituent, and wherein the weight ratio of inorganic component and organic constituent is 0.3:1 to 5:1; With
B described slurry is sprayed into spray-drying tower by (), the temperature of wherein said slurry when entering spray-drying tower is 65 DEG C to 140 DEG C, and wherein the outlet air temperature of spray-drying tower is 70 DEG C to 120 DEG C, and wherein said non-water material comprises anion surfactant, polymerization of carboxylic acid salt and carbonate.
EP-A-221 776 describes the matrix being suitable as granular detergent composition or its component and also can absorb and stay the manufacture method of the porous phosphate free powder holding quite a large amount of liquid or liquefiable detergent component in liquid form, preparation that the method comprising the steps of (i) comprises sodium carbonate and optionally also comprises the water paste of sodium sulfate, (ii) described slurry drying is formed powder, the feature of described method is that the total amount of sodium carbonate and (if existence) sodium sulfate is based on dried powder at least 20 % by weight, and the weight ratio of sodium carbonate and sodium sulfate (when it is present) is at least 0.37:1 in described slurry, and be not later than in described slurry sodium carbonate introduce account for sodium carbonate in dried powder and (if existence) sodium sulfate total amount 0.1 to 60 % by weight crystal growth modifier, it is the polycarboxylate of polymerization, form the crystal carbonate of crystal growth modification and/or the Burkeite of crystal growth modification thus in the slurry.The object of the method for EP-A-221 776 is the crystal carbonate and/or the Burkeite that manufacture a large amount of crystal growth modification, and they are crystalline materials.
These methods can be advantageously used in the spray-dried laundry powder that preparation has low bulk and low anionic surfactant concentration.But, be difficult to prepare the washing powder of the anionic detergent agent content with 40 % by weight or higher.The further raising of anionic detergent agent content causes drying rate not good due to the high slurry moisture content of about 40-50 % by weight.The high dry temperature dried up needed for excessive water spends extra energy and may cause in tower and/or dry cyclone on fire.High anionic detergent slurry also may cause overflow and bring transportation problem due to inflation and very high viscosity.
Gained height anionic detergent powder usually has low bulk and is difficult to operation and stores and have higher packing cost.
In addition, spraying dry is the method for energy-intensive, and improve existing washing composition manufacturing technology is in this respect significant viewed from environmental.Manufacturers and the more and more interested human consumer of the sustainability of our economic activity is thought that the environment aspect of washing composition manufacturing process is important.
Therefore first object of the present invention is to provide the method for more Energy Efficient of spray dried detergent particle of anionic detergent agent content had higher than 40 % by weight or higher that preparation does not have above-mentioned shortcoming.Especially, this detergent particles should have good powder properties.
Another object of the present invention is to provide the method for more Energy Efficient of spraying dry (laundry) washing powder of anionic detergent agent content had higher than 40 % by weight or higher that preparation does not have above-mentioned shortcoming.
We find now surprisingly, by introducing an alkali metal salt of polycarboxylic acid, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate in the slurry, can prepare have higher than 40 % by weight or higher anionic detergent agent content, there is spraying dry (laundry) washing powder of the amorphous content being greater than 60 % by weight.Although silicate content is low, powder properties is excellent.
Therefore the method being suitable as the detergent particles of granular detergent composition or its component by manufacture of the present invention realizes these and other objects, described method comprises step (i) and is mixed with alkali source by anion surfactant precursor with in being formed and thickener, (ii) an alkali metal salt of polycarboxylic acid is added, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate are greater than 60 % by weight with (iii) spraying dry gained slurry to be formed to have to form slurry, be preferably greater than the detergent particles of the amorphous content of 70 % by weight, the an alkali metal salt of polycarboxylic acid and the mol ratio of sodium carbonate are 0.4 to 1.6 thus.
invention definition
According to a first aspect of the invention, providing package containing at least 40 % by weight anion surfactant and be suitable as the manufacture method of the detergent particles of granular detergent composition or its component, described method comprises step (i) and is mixed with alkali source by anion surfactant precursor with in being formed and thickener, (ii) an alkali metal salt of polycarboxylic acid is added, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate are to form slurry with (iii) spraying dry gained slurry to form the detergent particles with the amorphous content being greater than 60 % by weight, the an alkali metal salt of polycarboxylic acid and the mol ratio of sodium carbonate are 0.4 to 1.6 thus.
According to a second aspect of the invention, provide by method of the present invention obtain comprise at least 40 % by weight anion surfactant, an alkali metal salt of polycarboxylic acid, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate be suitable as the spray dried detergent particle of granular detergent composition or its component.
According to a third aspect of the invention we, providing package is containing the detergent composition of particle of the present invention.
detailed Description Of The Invention
A first aspect of the present invention be comprise at least 40 % by weight anion surfactant and be suitable as the manufacture method of the detergent particles of granular detergent composition or its component.This detergent particles preferably comprises at least 45 % by weight, more preferably at least 50 % by weight or even more than 60 % by weight anion surfactant.
In the first step of this method, stick with paste to form tensio-active agent with alkali source neutralize anionic surfactant precursor.This anion surfactant precursor is the acid precursor of anionic non-soap surfactants, and it will be neutralized the salt forming anion surfactant when reacting with alkali source.
Liquid can the anion surfactant precursor of pumping form be preferred.This anion surfactant precursor is preferably selected from linear alkyl benzene sulphonic acid, lipid acid and composition thereof.Linear alkyl benzene sulphonic acid is also referred to as LAS acid and HLAS.This anion surfactant precursor preferably in and time produce the LAS acid of corresponding linear alkylbenzene sulfonate (LAS).This LAS non-soap anionic surfactant preferably has C8-18, more preferably C10-16, most preferably the alkyl chain length of C12-14.
The soap formed by the neutralization of carboxylic acid or lipid acid can be used as auxiliary anion surfactant and this non-soap anionic surfactant is used in combination.Preferred carboxylic acid is the lipid acid with 12-18 carbon atom, such as the lipid acid of cocounut oil, plam oil, palm-kernel and butter.This lipid acid can be saturated or unsaturated, side chain or straight chain.Fatty acid mixt can be used.Lipid acid can use with maximum content of 30 % by weight of this anion surfactant precursor.
This anion surfactant precursor (or mixture of surfactant precursor) can use with part pre-neutralization form when not exclusively losing advantageous effects of the present invention.In fact, this surfactant acid is the mixture of the anionic non-soap surfactants of surfactant acid and neutralization thereupon.
This anion surfactant precursor can mix with other component and add.Suitable component is the anion surfactant of neutralization, such as in and time produce alkyl and/or the alkyl of alkenyl sulfate and/or the salt (sulfating product of primary alconol) of thiazolinyl sulfate hemiester.This type of non-soap anionic surfactant comprises primary alcohol sulfate, (PAS), and especially chain length is the PAS of C10-22, preferred C12-14.Coco PAS is desirable especially.
Other suitable surfactant acid comprises alpha-olefin sulfonic acid, inner olefin sulfonic acid, fatty acid ester sulfonic acid and uncle's sulfonic acid.Also can the combination of the apparent surfactant acid of operation technique personnel.
In other component described, except the anion surfactant of the lipid acid discussed and neutralization, the most important annexing ingredient that can add together with this surfactant precursor is in liquid form nonionogenic tenside.It adds to usually to reduce viscosity in this surfactant acid, thus can add at a lower temperature.
Available suitable nonionogenic tenside comprises primary alcohol ethoxylate and secondary alcohol ethoxyl compound, especially every mol of alcohol average 1 to 50 is used, the preferably C8-C20 fatty alcohol of 1 to 20 moles of ethylene oxide ethoxylation, more particularly uses the primary and secondary fatty alcohol of average 1 to the 10 moles of ethylene oxide ethoxylation of every mol of alcohol.Unethoxylated nonionogenic tenside comprises alkyl poly glucoside, glycerol monoethers and polyhydroxy amides (glucamide).As has been discus, the anion surfactant of neutralization can mix with this surfactant acid.This has the advantage of the through-put rate improving whole method.
Can add together with this anion surfactant precursor or comprise mineral acid as other fluid additive that independent liquid stream adds, as sulfuric acid, and hydrotrote, as tosic acid.
With any suitable alkali source that the alkali source of this anion surfactant precursors reaction can be liquid or solid form.Example is alkali metal hydroxide aqueous solution, preferred sodium hydroxide solution or sodium carbonate.Especially preferred is about 50 % by weight concentrated sodium hydroxide aqueous solution.Water quantity holding should be made at bottom line, because must water be dried up in spray drying step subsequently.On the other hand, it should not be low to making the tensio-active agent of neutralization stick with paste too sticky so that cannot operate.
Sodium carbonate can be any type.Have been found that synthesis light soda ash is especially preferred; Natural water ash powder is placed in the middle, and the granular soda ash powder of synthesis is least preferred starting material.
Preferably in the stirring mixer with open steam coils, preparation table surface-active agent is stuck with paste with the temperature by this heating material to about 35-40 DEG C.Neutralization reaction between anion surfactant precursor and alkali source produces concentrated surfactant and sticks with paste, and it preferably has the solid content of 60 to 80 % by weight.Neutralization heat makes temperature rise to about 75-80 DEG C from about 35-40 DEG C, and it remains on this.Advantageously reserve several minutes extra time to guarantee to neutralize completely.
In the second step of the method, by an alkali metal salt of polycarboxylic acid, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate (Na 2cO 3) add in this tensio-active agent paste to form slurry.Add order and be considered to inessential.
Polycarboxylic acid used according to the invention is the monomeric polycarboxylic acid of the low relative molecular amount with maximum 400.It can be selected from two-, three-and four-first carboxylic acid, tribasic carboxylic acid is preferred thus, especially citric acid.Other may be lactic acid and tartrate.An alkali metal salt is preferably sodium salt.The consumption of an alkali metal salt of polycarboxylic acid is 2 to 35 % by weight of said composition, more preferably 5 to 25 % by weight.
Said composition can comprise maximum alkaline silicate of 5 % by weight further.Advantageously use and have 1.5 to 3.3, preferably the alkalimetal silicate of SiO2/M2O ratio of 1.8 to 2.6, wherein M is sodium ion, most preferably amorphous water glass.
This slurry also comprises polycarboxylate polymkeric substance.Preferred polymeric carboxylic acid salt with 0.1 to 20 % by weight of sodium carbonate total amount, preferably 0.2 to 5 % by weight, most preferably the amount of 1 to 5 % by weight uses.But; in order to other reason; such as synergy (building), structurizing or antiredeposition, detergent particles of the present invention or comprise detergent particles of the present invention close set compound in may there is the polymkeric substance of more high-content, such as, based on maximum 30 % by weight of sodium carbonate.
This polycarboxylate polymkeric substance preferably has at least 1,000, and advantageously 1,000 to 300,000, the particularly molecular weight of 1,000 to 250,000.Molecular weight be 10,000 to 70,000 polycarboxylate especially preferred.All molecular weight of specifying herein are the molecular weight provided by manufacturers.
Other preferred polymkeric substance is homopolymer and the multipolymer of vinylformic acid or toxilic acid.Especially can be polyacrylate and vinylformic acid/maleic acid.The suitable polymkeric substance that can be used alone or in combination comprises following:
Polyacrylic salt, as sodium polyacrylate, such as, from the Versicol(trade mark of Allied Colloids) E5, E7 and E9, molecular-weight average 4000,27 000 and 70 000; Narlex(trade mark from National Adhesives and Resins Ltd) LD 30 and 34, molecular-weight average is respectively 5000 and 25 000; With the Sokalan(trade mark from BASF) PA series, molecular-weight average 250 000; Ethene/maleic acid, such as, from the EMA(trade mark of Monsanto) series; Methylvinylether/maleic acid, such as, from the Gantez(trade mark of GAF Corporation) AN119; Vinylformic acid/maleic acid, such as, from the Sokalan(trade mark of BASF) CP5.
Due to their biodegradability, advantageously use polyaspartic acid salts and poly aspartic acid.Polyaspartic acid salts is the biological polymer synthesized by l asparatic acid (a kind of natural amino acid).Part is due to carboxylate radical, and polyaspartic acid salts has and character like polyacrylate.A kind of polyaspartic acid salts of preferred type is thermal polyaspartates or TPA.This has following benefit: its biodegradable one-tenth environmental friendliness product, and as carbonic acid gas and water, this is avoided needing in sewage treatment process, to remove TPA and by its landfill disposal.First TPA by being heated to the temperature of more than 180 DEG C to produce polysuccinimide to manufacture by aspartic acid.Polysuccinimide open loop is made to form polyaspartic acid salts subsequently.Due to two kinds of possible mode open loops, two kinds of polymer bonds can be observed, [α]-key and [β]-key.
If needed, the mixture of two or more polymkeric substance any can be used in method of the present invention and detergent particles composition.
Under the stirring velocity improved, alkaline silicate and polymkeric substance can be pumped into mixing machine to improve the mobility of total material.
This slurry also comprises the sodium carbonate of the amount of 5-40 % by weight.Sodium carbonate can be any type.This slurry preferably contains less than 10 % by weight zeolite builders with less than 10 % by weight phosphate builderss, and it is not even more preferably completely containing zeolite builders or phosphate builders.
This slurry optionally comprises the Xylo-Mucine (SCMC) of the amount of 0.1 to 2.5 % by weight.
In next third step of method of the present invention, gained slurry spraying dry is greater than 60 % by weight to be formed to have, and be preferably greater than the particle of the amorphous content of 70 % by weight, an alkali metal salt of polycarboxylic acid and the mol ratio of sodium carbonate are 0.4 to 1.6 thus.The typical tower entrance and exit temperature of this spray-drying process is respectively 250-400 DEG C and 80-120 DEG C.
detergent particles
A second aspect of the present invention be comprise at least 40 % by weight anion surfactant and be suitable as the spray dried detergent particle of granular detergent composition or its component.This particle has makes them be suitable as absorbing fluid component, as the relatively high specific surface area of the carrier of nonionogenic tenside or nonionogenic tenside/fatty acid blend.
Particle of the present invention comprises:
(i) at least 40 % by weight anion surfactant, soap and composition thereof,
(ii) an alkali metal salt of polycarboxylic acid,
(iii) maximum 5 % by weight alkaline silicates,
(iv) polycarboxylate polymkeric substance,
And sodium carbonate,
It obtains by method of the present invention.
An alkali metal salt of nonsoap detergent is preferably linear alkylbenzene sulfonate (LAS).
The granular solids of spray dried detergent particle of the present invention to be loose density be 250 to 500 grams per liters.Size-grade distribution makes at least 50 % by weight usually, and preferably at least 70 % by weight, more preferably the particle of at least 85 % by weight is less than 1700 microns, and fine particle content is low.Usual discovery need not process to remove excessive particle or particulate further.
The specific surface area that this spray dried detergent particle is recorded by N2 adsorption by it characterizes further.According to based on J. Am. Chem. Soc. 60, Brunauer, Emmett and the Teller(BET described in 309 (1938)) the ASTM D 3663-78 standard of method, by the specific surface area (" SSA ") of this particle of nitrogen absorption measurement.We use Gemini Model 2360 Surface Area Analyzer (can available from Micromeritics Instrument Corp. of Norcross, Ga.).This spray dried detergent particle has 5 meters squared per gram or larger, preferably 8 meters squared per gram or larger, even more preferably 10 meters squared per gram or larger specific surface area (SSA).
Gained particle has excellent flowing property, low compressibility and minimum caking tendency usually.The direct granulated detergent particle from this spray-drying process has the anionic surfactant concentration of at least 40 % by weight.Without the need to granulation aid, as zeolite, although also can be used them.Anionic surfactant concentration especially high in this particle can be realized.Such as, higher than about 45 % by weight, preferably can mix in this detergent particles higher than 50 % by weight or anion surfactant more than 50 % by weight.Anion surfactant preferably comprise less than the anion surfactant total amount in detergent particles 10 % by weight soap.
This detergent particles also can comprise and accounts for 0 to 8 % by weight of particle, preferably the water of amount of 0 to 4 % by weight.The detergent particles obtained by the method is stable storing under high humidity level.Therefore, they can be used on widely in Betengent product.
Desirably, this detergent particles has the length-to-diameter ratio being no more than 2, more preferably roughly spherical to reduce with the segregation of other particle in the powder detergent composition that is mixed with and to improve the visual appearance of powder.
X-ray diffraction technique as known in the art can be used to detect the existence of amorphous phase.X-ray diffraction (XRD) is the non-destructive assay method for the orderly material of property measuring period (crystalline material) distinctive diffraction angle and intensity.The intensity of scattered X-rays and spatial distribution form specific diffractogram, its be this sample " fingerprint " and can be used for quantitative and qualitative analysis assessment, d-value calculates, by peak shape and polymorphism mensuration crystallite dimension and defect.
detergent composition
A third aspect of the present invention is the detergent composition comprising particle of the present invention, especially laundry composition.
Spray dried detergent particle of the present invention can use like this, but they also can supplement other detergent ingredients, component or additive to form complete detergent composition.This detergent particles can mix with any composition conventional in detergent formulation.They can be dry mixed with solid material, and their unnecessary carrier fluid ability can be utilized advantageously to add liquid further wherein.Especially conventional amount is advantageously added thus or even higher than the perfume compound of conventional amount.
If needed, also can use the non-soap surfactants of other type together with this particle, such as cationic, amphoteric ion type, amphoteric or Semi-polar surfactants.Many suitable detergent active compounds can be obtained and fully describe in the literature, such as, at " the Surface-Active Agents and Detergents " of Schwartz, Perry and Berch work, in I and II volume.
Soap can also be there is, to provide foam control and extra detersive power and to help the power of washing.Fully-formulated compositions can comprise maximum soap of 8 % by weight.The total amount of the tensio-active agent existed in full formula detergent composition is 15 to 70 % by weight suitably, although can be used in this extraneous amount on demand.
The full formula detergent composition comprising the detergent particles made by method of the present invention can contain other detergent ingredients of convention amount, such as, SYNTHETIC OPTICAL WHITNER, enzyme (preferred protease, lipase, amylase and/or cellulase), feelings of assuming office and fixed profoamer or Foam Control, anti redeposition agent, as cellulose polymer compound; Anti-scaling, perfume compound, dyestuff, cover dyestuff (shading dyes), white dyes, water glass; Inhibiter, comprises silicate; Inorganic salt, as sodium sulfate, colour particles (coloured speckles); Foam Control; With fabric softening compound.This full formula detergent composition especially preferably contains TEAD/ percarbonate as bleach system.
If needed, this detergent particles can mix with other organic or inorganic washing assistant, and described washing assistant is usually with the particle form supply with the mixture of other composition of pure washing assistant or washing assistant.Especially preferred organic washing-assisting detergent is acrylate copolymer, more particularly vinylformic acid/maleic acid, and suitably with 0.5 to 15 % by weight, preferably the amount of 1 to 10 % by weight uses.
Detergent particles of the present invention is hereinafter referred to as basic powder.They can mix with the another kind of powder available from any conventional washing agent manufacturing process (comprising spraying dry or non-spray-drying method).Because the detergent particles made by the present invention can be mixed with this type of other powder, obtain significant formulation flexibility, and the active material content in fully-formulated compositions can be very high, need not improve washing assistant content.
This detergent particles forms 30 to 100 % by weight of final full formula detergent composition usually.Usually, the full formula detergent composition comprising the detergent particles made by method of the present invention can comprise 15 to 60 % by weight, the preferably anion surfactant of 20 to 50 % by weight, this anion surfactant is wholly or in part from the granular product of spray-drying process.In addition, this full formula detergent composition can comprise the nonionogenic tenside of 0 to 35 % by weight and the fatty acid soaps of 0 to 5 % by weight.
The full formula detergent composition comprising other composition and detergent particles manufactured according to the present invention preferably has about 250 to 750 grams per liters, more preferably the loose density of at least 350 grams per liters.
Full formula detergent composition also can comprise other solids component needing to be included in washing powder, such as white dyes; Polycarboxylate polymkeric substance; Anti redeposition agent, such as Xylo-Mucine (SCMC); Or filler, as sodium sulfate, diatomite, calcite, kaolin or wilkinite.
If needed, solid particulate tensio-active agent, the alkylbenzene sulfonate of such as powder type and/or alkyl-sulphate, a part for mixing machine feeding-in solid body can be formed, to improve the activity level of the tensio-active agent in particle further, but manufacture all anion surfactants preferably by spraying dry.
The type of the usual not fastidious mixing machine used of the method, as long as apply violent mixing.We have found that, in order to obtain all advantages of the present invention, using the mixing machine with chopping (chopping) action to be favourable.
This mixing is preferably carried out having and use in the mixing machine of stirring action and cutting action, and these actions most preferably can as described belowly separately use.Cutting action is preferred chopping action.This can realize as mixing machine advantageous by selecting the high-speed mixer/tablets press with stirring action and cutting action.This high-speed mixer/tablets press preferably has rotatable agitator and cutting element, and they can run with that can separately change or transformable speed independently of one another.
High energy agitation input combines with cutting action by this type of mixing function, but is also used in the stir mode providing other milder when cutting unit runs or do not run.L dige mixing machine is preferred, and for high anionic charging, horizontal or vertical axle cutting unit is desirable.It is also preferred that Fukae Powteh Co Ltd., the Fukae FS-G type mixing machine that Japan manufactures; This device is via the bowl shaped container form of open top charging, can be furnished with the agitator with basic Z-axis, and be positioned at the cutting unit on sidewall near bottom it substantially.This agitator and cutting unit can run with the speed that can separately change independently of one another.This container can be cooled.
Being considered to be suitable for other mixing machine is in the method for the invention Fuji(trade mark from Fuji Sangyo Co., Japan) VG-C series; With from Zanchetta & Co srl, the Roto(trade mark of Italy).
Being found to be suitable for another mixing machine is in the method for the invention L dige(trade mark from Morton Machine Co. Ltd., Scotland) FM series of batch mixing machine.The difference of this and mixing machine mentioned above is, its agitator has transverse axis.Sigma mixer and sigma mixing machine (Winkworth machinery limited) are the suitable mixing machines with chopping action.
The present invention is further described referring now to following non-limiting examples.In an embodiment, loose density (BD), dynamic flow rate (DFR) and unconfined compression strength (UCT) is measured according to following known test program.
loose density (BD)
By measuring the bulk properties in this specification sheets according to the method for JIS K 3362.
dynamic flow rate (DFR)
This is also referred to as flow velocity.The dynamic flow rate (DFR) in units of milliliters/second recorded by follow procedure can be utilized to quantize flow of powder.Equipment therefor is made up of the cylindrical glass tube of internal diameter 40 millimeters and length 600 millimeters.This pipe is clipped in certain position securely to make its axis oriented normal.Smooth pvc cone by the lower part outlet hole of the interior angle and diameter 22.5 millimeters with 15 ° closes its lower end.First beam sensor is positioned at 150 millimeters of places, outlet top, and the second beam sensor is positioned at 250 millimeters of places above first sensor.
In order to measure the dynamic flow rate of powdered sample, such as, by covering with a slice card, temporary closure outlet opening, pours powder into this barrel top via funnel, until powder position is higher than upper sensor about 10 centimetres; Dividing plate between funnel and pipe is guaranteed to fill evenly.Open outlet subsequently, the time t(second that lower sensor spends is down to from upper sensor in electronic measurement powder position).Measure and usually repeat twice or three times, and average.If V is the pipe volume (milliliter) between the sensor of upper and lower, provide dynamic flow rate DFR(milliliters/second by following equalities):
ml/s。
unconfined compression strength (UCT)
In this test, just obtained powder is pressed into compacts, and measures the power destroyed needed for this compacts.Powder is loaded cylinder, and even its surface flat.Powder places 50 grams of vinyl discs, dish is slowly placed the piston of 10 kilogram weights, makes it stay original position 2 minutes.Remove weight and piston subsequently, from powder, slowly remove this cylinder, leave the powder cylinder of self-support, its top is with these 50 grams of vinyl discs.If this compacts does not break, the first vinyl disc places second 50 grams of vinyl disc, and stops about 10 seconds.If this compacts breaks not yet subsequently, vinyl disc increases the dish of 100 grams, and stops 10 seconds.Subsequently with 10 seconds for gaining in weight with the increment of 0.25 kilogram in interval, until compacts caves in.Record realizes caving in required gross weight (w).
(w) classification is as follows by weight for the cohesion of powder:
W < 1.0 kilograms of good flow.
1.0 kilograms of < w <, 2.0 kilograms of medium flow.
Poly-in 2.0 kilograms of < w < 5.0 kilograms.
5.0 kilograms of < w very in poly-.
Embodiment
embodiment 1-7
With open steam coils with the agitator heating this material in preparation 2,300 kilograms of water pastes, it comprises the following steps.
The charging be made up of the soda lye (197 kilograms) of water purification (563 kilograms) and 50% purity is metered into opening in the agitator of steam coils and Lightnin A320 impeller.This charging is heated to the temperature of 35-40 DEG C, subsequently, mixes 1.9 kilograms of Tinopal CBSX until fully dissolve.After this step, the business level sulfonic acid being metered into pre-weighed amount (753 kilograms) gradually through the time of 3-4 minute is with continuous stirring with in being formed and thickener.Reserve the additional time of 2 minutes to guarantee that neutralization completely.In succession add 342 kilograms of Trisodium Citrates (dihydrate) and 45 kilograms of Lutensol EO7 to form homogeneous material.Under the stirring velocity improved, the alkaline silicate (50 kilograms) of preheating and multipolymer (150 kilograms) are pumped into mixing machine with the mobility making it improve total material.In this stage, the steam in open coil pipe is preferably utilized to make temperature remain on 75-80 DEG C.After this step, cut off steam valve and be metered into 199 kilograms of sodium carbonate and 16.1 kilograms of SCMC via the worm conveyor be adjusted to through 2-3 minutes metering feed and agitator speed is set as 70-75rpm.When metering of solids, they are fallen near agitator blades to prevent from accumulating on wall or to form agglomerate.For final mixing step reserves other 2 minutes, then the mixture at 80 DEG C is discharged in storage tank to operate in the spray drying tower subsequently.
In all embodiments, for the above-mentioned charger sheet of various formula calculation and for the manufacture of slurry.This slurry is by low-pressure pump, Reitz grinding machine/magnetic separator transmission, be then sent to high-pressure pump.Throughput rate needed for 1000-1100 kg/hr of slurry is realized under 2.5 rice diameter spray-dryers utilize two these slurries of fog system nozzles spray with the pressure clung at 25-28.With convection model to this tower supply remain on 270-290 DEG C of temperature warm air and at the bottom of tower collect dried powder.Powder moisture content is controlled at 3-4%, and needs the slight inlet air temp that changes to keep steady state conditions.
Provide as follows and measure powder properties and apply layering agent (layering agent), if Aerosil is to obtain good preservation stable prod.
Measure the following powder properties of the basic powder containing and do not contain Nonionics EO7:
Provide inspection powder properties as follows and additional nonionogenic tenside/fatty acid blend is sprayed onto on tower foundation powder and (represented) to provide the Betengent product with excellent powder properties by the promoting agent of % load.
Also check the existence of the crystallization phases of the basic powder of embodiment 1-7.Use the D8 Discover machine from Bruker-AXS, obtain the d-value of the diffracted ray of sample and identify crystalline compounds by them.
Materials and methods:
The existence of the crystalline compounds in the powder of basis arranges in the following table:
Drawn by these XRD data, these basic powder mainly contain amorphous phase and there is the sodium carbonate of anhydrous crystalline form.

Claims (17)

1. comprise the anion surfactant of at least 40 % by weight and be suitable as the manufacture method of the detergent particles of granular detergent composition or its component, described method comprises step (i) and is mixed with alkali source by anion surfactant precursor with in being formed and thickener, (ii) an alkali metal salt of polycarboxylic acid is added, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate are to form slurry with (iii) spraying dry gained slurry to form the detergent particles with the amorphous content being greater than 60 % by weight, the an alkali metal salt of polycarboxylic acid and the mol ratio of sodium carbonate are 0.4 to 1.6 thus.
2. method according to claim 1, wherein said anion surfactant precursor is selected from straight-chain alkyl sulfate (LAS) acid, lipid acid and composition thereof.
3., according to the method for aforementioned any one of claim, an alkali metal salt of wherein said polycarboxylic acid is Trisodium Citrate.
4., according to the method for aforementioned any one of claim, wherein said pulp bales is containing 1 to 3 % by weight amorphous water glass.
5. method according to claim 4, wherein said polymkeric substance is selected from acrylate homopolymer, vinylformic acid/maleic acid and acrylic phosphinates.
6. method according to claim 5, is characterized in that described polymkeric substance is sodium polyacrylate.
7. method according to claim 6, is characterized in that described polymeric carboxylic acid salt has 1,000 to 250, in the scope of 000, preferably 3,000 to 100, and the molecular weight in the scope of 000.
8., according to the method for aforementioned any one of claim, wherein said pulp bales is containing nonionogenic tenside.
9., according to the method for aforementioned any one of claim, wherein said pulp bales is containing Xylo-Mucine.
10. according to the method for aforementioned any one of claim, the feature of wherein said particle is to have 5 meters squared per gram or larger, preferably 8 meters squared per gram or larger, more more preferably 10 meters squared per gram or larger specific surface area.
11. 1 kinds of spray-dried detergent particles, its comprise at least 40 % by weight anion surfactant, an alkali metal salt of polycarboxylic acid, maximum 5 % by weight alkaline silicates, polycarboxylate polymkeric substance and sodium carbonate be suitable as granular detergent composition or its component, it obtains by the method according to aforementioned any one of claim.
12. detergent particles according to claim 11, is characterized in that having 5 meters squared per gram or larger, preferably 8 meters squared per gram or larger, more more preferably 10 meters squared per gram or larger specific surface area.
13. detergent composition comprising the particle according to any one of claim 10-12.
14. detergent composition according to claim 13, it comprises soap and/or nonionogenic tenside further.
15. according to the detergent composition of any one of claim 13-14, and it comprises bleach system further, as TAED/ percarbonate.
16. according to the detergent composition of any one of claim 13-15, and it comprises white dyes further, is preferably the content of 0.05 to 0.5 % by weight.
17. according to the detergent composition of any one of claim 13-16, and it comprises perfume compound further.
CN201380036325.9A 2012-07-09 2013-06-14 Process for the production of a detergent granule, detergent granule and detergent composition comprising said granule Pending CN104411812A (en)

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CN113444584A (en) * 2021-06-25 2021-09-28 山东新华莎罗雅生物技术有限公司 Solid enzyme cleaning agent and preparation method thereof
CN113444588A (en) * 2021-06-25 2021-09-28 山东新华莎罗雅生物技术有限公司 Solid cleaning agent for medical apparatus and instruments and production process thereof

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WO2022243343A1 (en) 2021-05-19 2022-11-24 Unilever Ip Holdings B.V. Process for preparing a spray dried detergent particle
WO2024088878A1 (en) * 2022-10-24 2024-05-02 Unilever Ip Holdings B.V. Spray-dried laundry particle

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EP1914297A1 (en) * 2006-10-16 2008-04-23 The Procter & Gamble Company A spray-drying process for preparing a low density, low builder, highly water-soluble spray-dried detergent powder
CN101688158A (en) * 2008-05-22 2010-03-31 荷兰联合利华有限公司 Manufacture of detergent granules by dry neutralisation

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CN1066881A (en) * 1991-04-12 1992-12-09 普罗格特-甘布尔公司 Form the chemical structure of high active surfactant particulate tensio-active agent cream
EP1914297A1 (en) * 2006-10-16 2008-04-23 The Procter & Gamble Company A spray-drying process for preparing a low density, low builder, highly water-soluble spray-dried detergent powder
CN101688158A (en) * 2008-05-22 2010-03-31 荷兰联合利华有限公司 Manufacture of detergent granules by dry neutralisation

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CN113444584A (en) * 2021-06-25 2021-09-28 山东新华莎罗雅生物技术有限公司 Solid enzyme cleaning agent and preparation method thereof
CN113444588A (en) * 2021-06-25 2021-09-28 山东新华莎罗雅生物技术有限公司 Solid cleaning agent for medical apparatus and instruments and production process thereof

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ZA201409406B (en) 2016-08-31
PH12014502727B1 (en) 2015-02-02
BR112014030610B1 (en) 2021-04-20
MX354484B (en) 2018-03-07
BR112014030610A2 (en) 2017-06-27
MX2015000427A (en) 2015-03-12
AR091694A1 (en) 2015-02-25
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WO2014009101A1 (en) 2014-01-16
IN2015MN00006A (en) 2015-10-16

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