WO2007077943A1 - Method for producing detergent particles - Google Patents
Method for producing detergent particles Download PDFInfo
- Publication number
- WO2007077943A1 WO2007077943A1 PCT/JP2006/326313 JP2006326313W WO2007077943A1 WO 2007077943 A1 WO2007077943 A1 WO 2007077943A1 JP 2006326313 W JP2006326313 W JP 2006326313W WO 2007077943 A1 WO2007077943 A1 WO 2007077943A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bulk density
- particles
- spray
- increasing
- weight
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims abstract description 173
- 239000003599 detergent Substances 0.000 title claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000001965 increasing effect Effects 0.000 claims abstract description 48
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000001694 spray drying Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 22
- 230000002401 inhibitory effect Effects 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 9
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 239000002738 chelating agent Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 16
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 13
- 239000011230 binding agent Substances 0.000 description 10
- 238000004090 dissolution Methods 0.000 description 10
- 239000003513 alkali Substances 0.000 description 9
- 229910017053 inorganic salt Inorganic materials 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000004115 Sodium Silicate Substances 0.000 description 8
- 229910021536 Zeolite Inorganic materials 0.000 description 8
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- -1 olefinsulfonates Chemical class 0.000 description 8
- 239000000546 pharmaceutical excipient Substances 0.000 description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 8
- 229910052911 sodium silicate Inorganic materials 0.000 description 8
- 239000010457 zeolite Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 235000002639 sodium chloride Nutrition 0.000 description 6
- 229920003169 water-soluble polymer Polymers 0.000 description 6
- 239000002202 Polyethylene glycol Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 150000007942 carboxylates Chemical class 0.000 description 4
- 229920000620 organic polymer Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920000592 inorganic polymer Polymers 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000429 sodium aluminium silicate Substances 0.000 description 3
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- QJRVOJKLQNSNDB-UHFFFAOYSA-N 4-dodecan-3-ylbenzenesulfonic acid Chemical compound CCCCCCCCCC(CC)C1=CC=C(S(O)(=O)=O)C=C1 QJRVOJKLQNSNDB-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910003202 NH4 Inorganic materials 0.000 description 1
- 241000337007 Oceania Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 101710194948 Protein phosphatase PhpP Proteins 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 235000018936 Vitellaria paradoxa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000003113 alkalizing effect Effects 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical group OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000004927 clay Chemical class 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
- C11D17/065—High-density particulate detergent compositions
-
- 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
-
- 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/02—Preparation in the form of powder by spray drying
-
- 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
- C11D3/0005—Other compounding ingredients characterised by their effect
Definitions
- the present invention relates to a method for producing detergent particles.
- high-bulk density detergents more than 600 g/L
- medium-bulk density detergents from 400 to 600 g/L
- low-bulk density detergents 250 g/L or more and less than 400 g/L
- liquid detergents and the like.
- high-bulk density detergents more than 600 g/L
- medium-bulk density detergents from 400 to 600 g/L
- low-bulk density detergents 250 g/L or more and less than 400 g/L
- liquid detergents and the like.
- the medium- to low-bulk density detergents have been also in great demands in Asia and Oceania, Europe, and the like.
- the mainstream of the method for 20 producing the detergent is a method for producing the detergent including the steps of formulating an anionic surfactant and other builder in the form of a slurry, and spray-drying the slurry.
- the mainstream of the method for producing the detergent is a method for producing the detergent including the steps of 25 formulating an anionic surfactant and other builder in the form of a slurry, spray- drying the slurry, and thereafter subjecting spray-dried particles to a treatment of increasing a bulk density.
- JP-A-Hei-1- 247498 a method including the step of treating spray-dried particles continuously according to a method of applying a very high shear force such as a Froude number of from 50 to 1,200 thereto using a specialized rotary mixer in which mixing blades are arranged in a spiral form, thereby increasing a bulk density has been reported.
- a very high shear force such as a Froude number of from 50 to 1,200 thereto using a specialized rotary mixer in which mixing blades are arranged in a spiral form
- the present invention relates to a method for producing detergent particles including the steps of spray-drying a slurry containing an anionic surfactant and increasing bulk density of the resulting particles with a high-speed mixer, wherein a mixing treatment is carried out at a breaking load at 25°C of 9,800 mN or less and at a degree of particle growth, i.e. an average particle size after a treatment of increasing a bulk density / an average particle size before a treatment of increasing a bulk density, of equal to or smaller than 1.1, wherein an extent of an increase in the bulk density before and after the treatment of increasing a bulk density is from 20 to 800 g/L.
- Figure 1 is an illustration showing that particles are placed in an adapter container for the determination of a breaking load of the particles to produce a molded article.
- Figure 2 is an illustration showing that a further load is applied to a molded article obtained by compression molding.
- Figure 3 is an illustration showing that a detergent molded article is disintegrated by a load.
- the present invention relates to a method of producing the medium- to high-bulk density detergents while inhibiting particle growth by a method of treating the detergent particles when the detergent particles are subjected to a treatment of increasing a bulk density with a high-speed mixer equipped with a high-speed shear mechanism, or the like, under conditions that surface adhesion of the detergent particles during the treatment takes a value that does not exceed a certain value (expressed in terms of a breaking load of 9,800 mN or less).
- a medium- to high-bulk density detergent can be produced without causing lowering in dissolubility and an yield of a manufactured article accompanying an increase in the bulk density.
- the surface adhesion does not take a value equal to or greater than a certain value, the detergent particles are less likely to be adhered to the inside of a high-speed mixer, whereby the detergent particles having stable powdery physical properties can be produced even during continuous production.
- breaking load in the present invention refers to an index showing surface adhesion of the detergent particles. The higher the value of the breaking load, the higher the surface adhesion, so that the granulation proceeds among the detergent particles, thereby causing the formation of coarse detergent particles.
- a desired detergent particle can be produced by properly combining conditions as mentioned below, thereby controlling a breaking load to an appropriate level.
- compositionally spray-dried particles containing large amounts of an anionic surfactant, an organic polymer, and water have a high breaking load.
- detergent particle in the present invention refers to a particle obtained by subjecting the spray-dried particles containing an anionic surfactant, other builder, and the like to a mixing treatment, and the term “detergent particles” means an aggregate thereof.
- a detergent composition as mentioned below means a composition containing the detergent particles and further containing separately added detergent components other than the detergent particles (for example, a fluorescer, an enzyme, a perfume, a defoaming agent, a bleaching agent, a bleaching activator, or the like).
- the spray-dried particles in the present invention are particles obtained by spray-drying a water-soluble slurry containing an anionic surfactant, other builder, and the like.
- an anionic surfactant other builder, and the like.
- the anionic surfactant which is generally used is usable, and includes, for example, linear alkylbenzenesulfonates, ⁇ -olefinsulfonates, alkyl sulfates, olefinsulfonates, fatty ester sulfonates, alkyl ether sulfates, and the like. These anionic surfactants can be used as a single component, or in combination of two or more components.
- a counterion is preferably an alkali metal, and more preferably sodium.
- LAS-Na sodium linear alkylbenzenesulfonates
- a LAS-Na having an alkyl group with an average number of carbon atoms of from 10 to 15 is more preferable from the viewpoint of economic advantage, storage stability, and foamability.
- the above-mentioned anionic surfactant is contained in the slurry in an amount of preferably 10% by weight or more, more preferably 15% by weight or more, and even more preferably 20% by weight or more, of the resulting spray- dried particles, from the viewpoint of detergency.
- the above- mentioned anionic surfactant is contained in the slurry in an amount of preferably 40% by weight or less, more preferably 30% by weight or less, and even more preferably 25% by weight or less of the resulting spray-dried particles, from the viewpoint of extending a controlling range of bulk density while inhibiting the formation of coarse particles.
- An essential component of the spray-dried particles in the present invention is only an anionic surfactant, and other component which is ordinarily used in a detergent composition can be optionally contained in the spray-dried particles from the viewpoint of detergency, particle size distribution, and particle strength.
- other component includes a water-soluble solid alkali inorganic substance, a chelating agent, a water-soluble inorganic salt, a water- soluble polymer, a water-insoluble excipient, a nonionic surfactant, a cationic surfactant, other auxiliary component, and the like.
- the spray-dried particles contain a water-soluble solid alkali inorganic substance, a chelating agent, a water-soluble inorganic salt, and a water-soluble polymer are formulated.
- spray-dried particles of the present invention can be optionally formulated with a substance given below.
- water-soluble solid alkali inorganic substance refers to an alkali inorganic substance which is solid at an ambient temperature (20 0 C), and it is preferable that a substance can be dissolved in an amount of 1 g or more, preferably 5 g or more, and more preferably 10 g or more, in 100 g of water at 20 0 C.
- the water-soluble solid alkali inorganic substance is not particularly limited, and an alkali metal salt, a silicate, or the like having a hydroxide group, a carbonate group, or a hydrogencarbonate group can be used.
- the water-soluble solid alkali inorganic substance includes, for example, sodium hydroxide, sodium carbonate, sodium hydrogencarbonate, potassium carbonate, sodium silicate, and the like.
- sodium carbonate is preferable as an alkalizing agent showing a suitable pH buffering range in a washing liquid.
- the water-soluble solid alkali inorganic substance is contained in the slurry in an amount of preferably 5% by weight or more, more preferably 10% by weight or more, and even more preferably 20% by weight or more, of the resulting spray- dried particles, from the viewpoint of detergency.
- the water-soluble solid alkali inorganic substance is contained in the slurry in an amount of preferably 40% by weight or less, more preferably 38% by weight or less, and even more preferably 35% by weight or less, of the resulting spray-dried particles, from the viewpoint of not impairing the degree of compositional freedom.
- the chelating agent can be formulated in the spray-dried particles in order to suppress the inhibition of deterging action by metal ions, and examples thereof are water-soluble chelating agents and water-insoluble chelating agents. [0021] It is desired that the amount of the chelating agent is adjusted so that the chelating agent is contained in an amount of preferably from 3 to 60% by weight, more preferably from 5 to 40% by weight, and even more preferably from 10 to 40% by weight, of the spray-dried particles, from the viewpoint of metal ion capturing ability.
- the chelating agents are water-soluble chelating agents and water-insoluble chelating agents, and plural chelating agents can be simultaneously formulated in the spray-dried particles, in which case it is desired that the total content is arbitrarily adjusted in the amount as mentioned above.
- the water-soluble chelating agent is not particularly limited as long as the water-soluble chelating agent is a substance having a metal ion capturing ability.
- the water-soluble chelating agent which can be dissolved in an amount of 1 g or more in 100 g of water at 20 0 C is preferable, and for example, tripolyphosphate, orthophosphate, pyrophosphate or the like can be used.
- tripolyphosphate is preferable, and the tripolyphosphate is contained in an amount of preferably 60% by weight or more, more preferably 70% by weight or more, and even more preferably 80% by weight or more, of the entire water- soluble chelating agents.
- an alkali metal salt is preferable, and a sodium salt and/or a potassium salt is more preferable.
- the water-insoluble chelating agent may be added to the spray-dried particles for the purposes of improving the metal ion capturing ability and enhancing the strength of the spray-dried particles.
- a water-insoluble chelating agent which can be dissolved in an amount of less than 1 g in 100 g of water at 20 0 C is preferable.
- a water-insoluble chelating agent having an average particle size of from 0.1 to 20 ⁇ m and preferably from 0.5 to 10 ⁇ m is preferable, from the viewpoint of dispersibility in water.
- the preferred water- insoluble chelating agents include crystalline aluminosilicates, including, for example, A-type zeolite, P-type zeolite, X-type zeolite, and the like.
- the A-type zeolite is preferable from the viewpoint of the metal ion capturing ability and economic advantages.
- the crystalline aluminosilicate is formulated so that a total amount of the chelating agents is in the above range from the viewpoint of the metal ion capturing ability.
- the crystalline aluminosilicate is contained in an amount of preferably 30% by weight or less and more preferably 20% by weight or less, of the spray-dried particles, from the viewpoint of suppressing remnants during washing.
- the water-soluble inorganic salt is formulated in the spray-dried particles in order to enhance the ionic strength of the washing liquid and improve the effects of deterging sebum stains and the like.
- the water- soluble inorganic salt is not particularly limited as long as the water-soluble inorganic salt is a substance that has an excellent dissolubility and does not give worsening influence to detergency.
- a water-soluble inorganic salt which can be dissolved in an amount of 1 g or more in 100 g of water at 20 0 C is preferable.
- the water-soluble inorganic salt includes, for example, an alkali metal salt or ammonium salt, having a sulfate group or a sulfite group, and the like.
- an alkali metal salt or ammonium salt having a sulfate group or a sulfite group, and the like.
- sodium sulfate, sodium chloride, sodium sulfite, or potassium sulfate having a high degree of ionic dissociation is used as an excipient.
- its combined use with magnesium sulfate is also effective from the viewpoint of increasing the dissolution rate.
- the water-soluble inorganic salt is contained in an amount of preferably from 5 to 80% by weight, more preferably from 10 to 70% by weight, and even more preferably from 20 to 60% by weight, of the spray-dried particles, from the viewpoint of the ionic strength.
- the water-soluble polymer may be added to the spray-dried particles for the purpose of enhancing the particle strength by film formation on the spray- dried particles.
- the water-soluble polymer includes organic polymers and inorganic polymers.
- the organic polymer includes carboxylate polymers, carboxymethyl cellulose, soluble starches, saccharides, polyethylene glycol, and the like
- the inorganic polymer includes amorphous silicates and the like.
- the carboxylate polymers are preferable, and among the carboxylate polymers, a salt of an acrylic acid-maleic acid copolymer and a salt of a polyacrylic acid (counterion: Na, K, NH 4 and the like) are more preferable.
- carboxylate polymers having an average molecular weight of from 1,000 to 8,000 are preferable, and those having an average molecular weight of 2,000 or more and 10 or more carboxyl groups are more preferable.
- the organic polymer is contained in an amount of preferably from 0.1 to 10% by weight, and more preferably from 0.5 to 5% by weight, of the spray-dried particles.
- the inorganic polymer is contained in an amount of preferably from 0.1 to 20% by weight, and more preferably from 0.5 to 10% by weight, of the spray- dried particles.
- the water-insoluble excipient is not particularly limited, as long as the water-insoluble excipient is a substance that has an excellent dispersibility in water and does not give worsening influence to detergency.
- the water-insoluble excipient includes, for example, crystalline or amorphous aluminosilicates, silicon dioxide, hydrated silicic acid compound, clay compounds such as barite and bentonite, and the like.
- the water-insoluble excipient has an average primary particle size of preferably from 0.1 to 20 ⁇ m, and more preferably from 0.5 to 10 ⁇ m from the viewpoint of the dispersibility in water.
- the water-insoluble excipient is contained in an amount of preferably 50% by weight or less and more preferably 30% by weight or less, of the spray- dried particles, from the viewpoint of economic advantages and dispersibility.
- Water is contained in an amount of preferably 0% by weight or more, more preferably 3% by weight or more, and even more preferably 5% by weight or more, of the spray-dried particles, from the viewpoint of the speed of increasing bulk density.
- the water is contained in an amount of preferably 20% by weight or less and more preferably 15% by weight or less, of the spray-dried particles, from the viewpoint of the facilitation in control of a breaking load.
- a fluoresces a pigment, a dye or the like may be formulated in the spray- dried particles.
- the spray-dried particles used in the present invention can be obtained by spray-drying a slurry prepared by adding each of the above-mentioned components and mixing.
- the water content of the slurry and spray-drying conditions are not particularly limited.
- the spray-dried particles are obtained according to a method described in Tokkyocho Koho: Shuchi Kanyo Gijutsu Shu (Clothes Powder Detergent: Japanese Patent Office),
- sodium silicate in a case where both the crystalline sodium aluminosilicate and sodium silicate are used together, is contained in an amount of preferably 20% by weight or less, more preferably 15% by weight or less, and even more preferably 10% by weight or less, of the spray-dried particles.
- the crystalline sodium aluminosilicate and sodium silicate are contained in a total amount of preferably 50% by weight or less, more preferably 45% by weight or less, even more preferably 40% by weight or less, and even more preferably 30% by weight or less, of the spray- dried particles.
- the detergent particles in the present invention are obtained by controlling a breaking load to a range of 9,800 mN when the above-mentioned spray-dried particles are subjected to a treatment of increasing a bulk density.
- the detergent particles having a bulk density from 300 g/L to 1,500 g/L are obtained by, for example, a method including the step of subjecting the spray- dried particles to a treatment of increasing a bulk density at a breaking load of 9,800 mN or less; or a method including the steps of adding a given amount of an agent for inhibiting surface adhesion to the spray-dried particles before a breaking load exceeds 9,800 mN, continuing a treatment of increasing a bulk density, and repeating the above steps.
- the detergent particles when terminating the treatment of increasing bulk density or adding a certain amount of the agent for inhibiting surface adhesion thereto has a breaking load of preferably 9,800 mN or less, more preferably
- a breaking load is preferably 490 mN or more, more preferably 980 mN or more, and even more preferably 1,960 mN or more, from the viewpoint of the speed of increasing a bulk density.
- a final bulk density can be adjusted by adding the agent for inhibiting surface adhesion during the treatment of increasing a bulk density and continuing the treatment for the purpose of inhibiting the growth of a particle size due to an increase in the surface adhesion of the detergent particles.
- any of known ones that are ordinarily used can be used, and sodium tripolyphosphate, a crystalline or amorphous aluminosilicate, a crystalline sodium silicate, diatomaceous earth, silica, or the like is suitably used.
- one or more members selected from the group consisting of sodium tripolyphosphate and crystalline aluminosilicates, each of which have chelating ability are preferable.
- the crystalline aluminosilicate is more preferable from the viewpoint of free-flowing property, and sodium tripolyphosphate is more preferable from the viewpoint of rinsability.
- the particles used as the agent for inhibiting surface adhesion have an average particle size corresponding to a size of 1/10 or less, and preferably 1/20 or less, of an average particle size of the detergent particles, from the viewpoint of coating ability, and an average particle size corresponding to a size of 1/3000 or more, and preferably 1/600 or more, of an average particle size of the detergent particles, from the viewpoint of handling during the production.
- the agent for inhibiting surface adhesion is contained in an amount of preferably 1% by weight or more, more preferably 2% by weight or more, and even more preferably 3% by weight or more, of the detergent particles, from the viewpoint of the speed of increasing a bulk density.
- the agent for inhibiting surface adhesion is contained in an amount of preferably 20% by weight or less, more preferably 15% by weight or less, and even more preferably 10% by weight or less, of the detergent particles, from the viewpoint of inhibiting the surface adhesion.
- a liquid binder may be added to gather together fine powders which are generated, thereby increasing free-flowability upon the treatment of increasing a bulk density.
- the liquid binder includes, for example, any liquid components in the detergent particles such as water, a liquid nonionic surfactant, an aqueous solution of a water-soluble polymer (polyethylene glycol, an acrylic acid-maleic acid copolymer, or the like), a fatty acid, and the like.
- the liquid binder may be used in combination of two or more components, in which case examples thereof include addition methods, including (1) adding a mixture of two or more components of the liquid binders mixed in advance; (2) adding each of the liquid binders simultaneously; and (3) adding each of the liquid binders alternately. In any method, it is preferable that water is used together from the viewpoint of lowering the production cost.
- the liquid binder is contained in an amount of preferably 10 parts by weight or less, more preferably 5 parts by weight or less, and even more preferably 3 parts by weight or less, based on 100 parts by weight of the spray-dried particles, from the viewpoint of inhibiting aggregation of the detergent composition.
- the liquid binder is contained in an amount of preferably 0.1 parts by weight or more, and more preferably 0.3 parts by weight or more, based on 100 parts by weight of the spray-dried particles, from the viewpoint of the effect of reducing the fine powders.
- a method of adding a liquid binder includes continuous addition or divided addition, or batch addition, and batch addition at the end of the treatment of increasing a bulk density is preferable from the viewpoint of satisfying both suppressing particle growth and incorporating the generated fine powders into the detergent particles.
- a means of carrying out the treatment of increasing a bulk density is not particularly limited as long as an apparatus is capable of mixing the spray-dried particles, the agent of inhibiting surface adhesion, and a free-flowing aid.
- a vertical granulator having a disintegrating mechanism, a horizontal granulator having a disintegrating mechanism, a rotary mixer having a baffle plate, or the like is preferable from the viewpoint of applying a high shear force to the spray-dried particles.
- the main shaft has a peripheral speed of preferably from 1 to 7 m/s, and more preferably from 2 to 5 m/s, from the viewpoint of the speed of increasing a bulk density and facilitation in inhibiting a breaking load.
- blades which are the disintegrating mechanism have a rotational speed of preferably from 500 to 4,000 rpm, and more preferably from 1,000 to 2,000 rpm, from the same viewpoint as mentioned above.
- the main shaft has a peripheral speed of is preferably from 0.5 to 3 m/s.
- blades which are the disintegrating mechanism have a rotational speed of preferably from 500 to 4,000 rpm, and more preferably from 1,000 to 2,000 rpm.
- the detergent particles in the present invention have a degree of particle growth after the treatment of increasing a bulk density, i.e. an average particle size after the treatment of increasing a bulk density / an average particle size before the treatment of increasing a bulk density, of 1.1 or less, preferably from 0.6 to 1.1, more preferably from 0.7 to 1.1, and even more preferably from 0.8 to 1.1, from the viewpoint of dissolubility and an yield of a manufactured article.
- the extent of an increase in the bulk density of the detergent particles in the present invention before and after the treatment of increasing a bulk density is from 20 to 800 g/L, preferably from 30 to 600 g/L, and more preferably from 40 to 500 g/L.
- the detergent particles in the present invention can be subjected to surface-modification with a free-flowing aid after the treatment of increasing a bulk density, for the purposes of a further improvement in free-flowability and an improvement in storage stability.
- the average particle size of the free-flowing aid those having the same average particle size as the agent for inhibiting surface adhesion can be used.
- the free-flowing aid is contained in an amount of preferably from 2 to 20 parts by weight, and more preferably from 5 to 15 parts by weight, based on 100 parts by weight of the detergent particles, from the viewpoint of free-flowability.
- a substance used in the detergent composition can be optionally properly added.
- the detergent composition of the present invention contains detergent components that are separately added other than the detergent particles (for example, a fluorescer, an enzyme, a perfume, a defoaming agent, a bleaching agent, a bleaching activator, or the like).
- the detergent composition of the present invention having the above-mentioned constitution can be produced by properly mixing each of the above-mentioned components by a known method.
- the detergent particles of the present invention are contained in an amount of preferably from 50 to 100% by weight, and more preferably from 70 to 100% by weight, of the detergent composition.
- the spray-dried particles were prepared by the following procedures.
- the amount 292.32 kg of water at a temperature of 60 0 C and 40.71 kg of a 48% by weight aqueous sodium hydroxide solution were sequentially added to a 1 m 3 -mixing vessel having agitation blades with a jacket set at 60 0 C.
- a linear alkylbenzenesulfonic acid LAS: an alkyl group having an average number of carbon atoms from 10 to 15
- a high-temperature gas fed to the spray-drying tower was supplied at a temperature of 205 0 C to the bottom of the tower and exhausted at a temperature of 95°C from the top of the tower.
- the compositions of the resulting spray-dried particles are shown in Table 1.
- A-type (average particle size: 3 ⁇ m) was added thereto as a free-flowing aid, and a surface modification was carried out for 30 seconds with a peripheral speed of a main shaft of 4 m/s and a rotational speed of the disintegrating blades (choppers) of 1,800 rpm, to provide detergent particles.
- the preparation conditions of the detergent particles are shown in Table 2.
- the determination results for physical properties and a dissolution ratio of detergent particles before and after the treatment of increasing bulk density are shown in Table 3.
- the time for treatment of increasing the bulk density was 15 minutes, and the treatment was terminated when a breaking load attained to 4,900 mN.
- the detergent particles had a bulk density of 660 g/L, a degree of particle growth of 0.70, a granulation yield of 99%, and a dissolution ratio of 99%, showing a high granulation yield and a high dissolution ratio even after an increase in the bulk density.
- the physical properties of the spray-dried particles and the detergent particles can be determined by the methods described below.
- An adapter having a diameter of 30 mm is attached to a rheometer (manufactured by Fudo Kogyo Kabushiki Kaisha) as shown in Figures 1 to 3. Thereafter, the detergent particles in a weight [g] calculated by dividing a bulk density [g/L] by 20 are set in a cylindrical container made of a metal, and
- 9,800 mN of a load is applied at an ambient temperature for 3 minutes to compress the detergent particles. Subsequently, the detergent particles are taken out from the container, and a board is then raised at a rising rate of 2 cm/min, from which a force is applied to the particles molded by compression, to determine the force at which a molded article is broken.
- the detergent particles are vibrated for 5 minutes with a Ro-Tap sieve shaker (rotational speed: 265 rpm, tapping speed: 145 tpm) using standard sieves according to JIS Z 8801. After vibrating the detergent particles for 5 minutes, the average particle size can be determined from a particle size distribution on a weight basis according to the size openings of each of the sieves.
- the bulk density can be determined by a method for determining a bulk density according to JIS K 3362.
- the degree of particle growth is expressed by the formula: (average particle size after the treatment of increasing bulk density) / (average particle size before the treatment of increasing bulk density) .
- the granulation yield is a ratio of the detergent particles having a size of a 1,400 ⁇ m-sieve (standard sieve)-opening-pass according to JIS Z 8801.
- the dissolution ratio can be determined by a method described below.
- a 1-L beaker (a cylindrical form having an inner diameter of 105 mm and a height of 150 mm, for example, a 1-L glass beaker manufactured by Iwaki Glass Co., Ltd.) is charged with 1 L of hard water adjusted to 5°C and having a water hardness equivalent to 71.2 mg CaCO 3 /L (molar ratio: Ca/Mg: 7/3).
- a liquid dispersion of the detergent particles in the beaker is filtered with a standard sieve (diameter: 100 mm) having a sieve-opening of 74 ⁇ m according to JIS Z 8801 (corresponding to ASTM No. 200) of a known weight. Thereafter, water- containing detergent particles remaining on the sieve are collected in an open vessel of a known weight together with the sieve.
- the operation time from the beginning of filtration to collection of the sieve is 10 sec ⁇ 2 sec.
- the insoluble remnants of the collected detergent particles are dried for one hour with an electric dryer heated to 105 0 C.
- the dried insoluble remnants are kept in a desiccator with a silica gel (25°C) for 30 minutes and cooled. After cooling the insoluble remnants, a total weight of the dried insoluble remnants of the detergent particles, the sieve, and the vessel is determined, and a dry weight of the detergent particles remaining on the sieves is determined. Thereafter, the dissolution ratio (%) of the detergent particles is calculated by the following formula. Here, the weight is determined by using a precision balance.
- Dissolution Ratio (%) ⁇ 1 - (T/S) ⁇ x 100 wherein S is a weight (g) of the detergent particles supplied; and T is a dry weight (g) of the detergent particles remaining on the sieve.
- Example 2 The same procedures as in Example 1 were carried out using a composition of 1,000 kg of a slurry, to provide spray-dried particles each having a composition as shown in Table 1.
- the spray-dried particles were prepared as same as Example 1 with conditions shown in Table 2, to provide detergent particles.
- Example 2 to 5 gave the results in which a high granulation yield and high dissolution ratio are maintained even after the treatment of increasing bulk density in the same manner as in Example 1 by ending the treatment of increasing bulk density at a breaking load of 9,800 mN or less, or adding an agent for inhibiting surface adhesion to the detergent particles so that a breaking load would not exceed 9,800 mN, and continuing the treatment of increasing bulk density.
- Comparative Example 1 where the treatment of the increasing bulk density was carried out to the spray-dried particles having a higher water content than that of the composition of Example 1 until a breaking load exceeds 9,800 mN, the detergent particles had a bulk density of 807 g/L, a degree of particle growth of 6.90, a granulation yield of 30%, and a dissolution ratio of 88%, so that the granulation yield and the solubility are both lowered,.
- the treatment of increasing bulk density was carried out for 3 minutes in Comparative Example 2, an increase in the bulk density is not found at all.
- a medium-to-high-bulk density detergent can be produced without causing lowering of the dissolubility or lowering of the yield of the manufactured article, that accompanies the treatment of increasing a bulk density.
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- 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)
- Detergent Compositions (AREA)
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Abstract
Description
Claims
Priority Applications (1)
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AU2006334038A AU2006334038B2 (en) | 2005-12-28 | 2006-12-22 | Method for producing detergent particles |
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JP2005380318 | 2005-12-28 | ||
JP2005-380318 | 2005-12-28 | ||
JP2006245451A JP2007197662A (en) | 2005-12-28 | 2006-09-11 | Method for producing detergent particle group |
JP2006-245451 | 2006-09-11 |
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WO2007077943A1 true WO2007077943A1 (en) | 2007-07-12 |
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PCT/JP2006/326313 WO2007077943A1 (en) | 2005-12-28 | 2006-12-22 | Method for producing detergent particles |
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JP (1) | JP2007197662A (en) |
KR (1) | KR100967330B1 (en) |
AU (1) | AU2006334038B2 (en) |
WO (1) | WO2007077943A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0327963A2 (en) * | 1988-02-10 | 1989-08-16 | Henkel Kommanditgesellschaft auf Aktien | Process for increasing the density of spray-dried detergents |
EP0337330A2 (en) * | 1988-04-15 | 1989-10-18 | Henkel Kommanditgesellschaft auf Aktien | Process for increasing the density of spray-dried detergents with a reduced phosphate content |
DE19952353A1 (en) * | 1999-10-30 | 2001-05-03 | Henkel Kgaa | Production of surfactant-containing granulate used for washing comprises granulating solids with liquids and vortex drying to give an increased average size |
JP2003238998A (en) * | 2002-02-14 | 2003-08-27 | Lion Corp | Method for producing granular detergent |
-
2006
- 2006-09-11 JP JP2006245451A patent/JP2007197662A/en not_active Withdrawn
- 2006-12-22 WO PCT/JP2006/326313 patent/WO2007077943A1/en active Application Filing
- 2006-12-22 AU AU2006334038A patent/AU2006334038B2/en not_active Ceased
- 2006-12-22 KR KR1020087016475A patent/KR100967330B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0327963A2 (en) * | 1988-02-10 | 1989-08-16 | Henkel Kommanditgesellschaft auf Aktien | Process for increasing the density of spray-dried detergents |
EP0337330A2 (en) * | 1988-04-15 | 1989-10-18 | Henkel Kommanditgesellschaft auf Aktien | Process for increasing the density of spray-dried detergents with a reduced phosphate content |
DE19952353A1 (en) * | 1999-10-30 | 2001-05-03 | Henkel Kgaa | Production of surfactant-containing granulate used for washing comprises granulating solids with liquids and vortex drying to give an increased average size |
JP2003238998A (en) * | 2002-02-14 | 2003-08-27 | Lion Corp | Method for producing granular detergent |
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AU2006334038A1 (en) | 2007-07-12 |
JP2007197662A (en) | 2007-08-09 |
KR100967330B1 (en) | 2010-07-05 |
AU2006334038B2 (en) | 2011-01-27 |
KR20080075030A (en) | 2008-08-13 |
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