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WO1996015214A1 - Poudre a recurer presentant un pouvoir d'ecoulement ameliore et procede de production de ladite poudre - Google Patents

Poudre a recurer presentant un pouvoir d'ecoulement ameliore et procede de production de ladite poudre Download PDF

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Publication number
WO1996015214A1
WO1996015214A1 PCT/EP1995/004350 EP9504350W WO9615214A1 WO 1996015214 A1 WO1996015214 A1 WO 1996015214A1 EP 9504350 W EP9504350 W EP 9504350W WO 9615214 A1 WO9615214 A1 WO 9615214A1
Authority
WO
WIPO (PCT)
Prior art keywords
surfactant
surfactants
abrasives
surfactant granules
abrasive component
Prior art date
Application number
PCT/EP1995/004350
Other languages
German (de)
English (en)
Inventor
Volker Bauer
Olaf Blochwitz
Juan Carlos Wuhrmann
Rainer Jeschke
Eva Kiewert
Birgit Middelhauve
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Priority to EP95938417A priority Critical patent/EP0792340A1/fr
Publication of WO1996015214A1 publication Critical patent/WO1996015214A1/fr

Links

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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures

Definitions

  • scouring powders In addition to the abrasive components, usually silicates or carbonates in the form of quartz or marble powder, commercially available scouring powders also contain surfactants, which on the one hand help to emulsify the fat content of the baked-on dirt, but on the other hand also disperse it themselves.
  • surfactants that are obtained from renewable raw materials, such as the sodium salts of fatty alcohol sulfates and the alkyl glucosides, are mostly used today. They are usually dried in an atomization tower and, as so-called tower powder, have a bulk density of about 250 g / l.
  • This surfactant powder is then mixed, for example, with an abrasive quartz flour component, which in turn has a bulk density of approximately 1150 g / l.
  • an abrasive quartz flour component which in turn has a bulk density of approximately 1150 g / l.
  • Mixing constituents of such different densities and grain shapes carries the risk that they will gradually separate after being transported or stored for a long time or also during use due to the usual shaking movements. Mixture components whose bulk weights differ as little as possible would therefore be advantageous.
  • DE 41 27 323 A1 describes a process for producing surfactant granules which have a bulk density above 500 g / l and are obtained by granulating a mixture of one or more surfactants and a non-surfactant liquid component, this mixture being carried out under normal pressure at temperatures between 20 and 40 ° C in liquid to pasty form and granulated with the addition of an inorganic or organic solid and dried at the same time.
  • the surfactants that can be used can be anionic, nonionic, amphoteric or also cationic.
  • the content of surfactants in the granules can be adjusted to any desired value.
  • Mono- and / or polyfunctional alcohols can be used as the non-surfactant liquid component.
  • solids preferably finely divided materials are used, which can either be produced directly in this state, are commercially available, or are converted into this finely divided state by conventional comminution methods, for example by grinding with conventional mills.
  • Preferred solids have, for example, no more than 5% by weight of particles with a diameter above 2 mm and preferably no more than 5% by weight of particles with a diameter above 1.6 mm. In particular, solids are preferred which consist of at least 90% by weight of particles with a diameter below 1.0 mm.
  • alkali carbonates with more than 90% by weight of particles with a diameter of less than or equal to 0.5 mm and zeolite NaA powder in detergent quality which contains at least 90% by weight of particles with a diameter below 0.03 mm .
  • Water-soluble and water-insoluble constituents of cleaning agents are particularly preferred as solids.
  • the surfactant granules according to DE 41 27 323 A1 can be produced in all devices in which granulation can be carried out with simultaneous drying. Examples of this are heatable mixers and granulators, for example granulators of the type Turbo dryer * (device from Vomm, Italy).
  • the surfactant granules obtained by this process are practically spherical and thereby significantly improve the flowability of the finished product, with a reduction in abrasion being observed at the same time. They are light colored and have an average bulk density of between 550 and 1000 g / l. They are dust-free, i.e. in particular, they contain no particles with a particle size below 0.05 mm.
  • An additional powdering of the granules with particularly fine powder particles of the solid components to prevent sticking is not necessary, but can be carried out to further increase the bulk density.
  • the invention now relates to transportable and storage-stable, powdery abrasives based on surfactants and an abrasive component with improved flow properties, which are characterized by 3 to 50% by weight, preferably 4 to 30% by weight, of solid, particulate surfactant granules and 50 to 97 wt .-%, preferably 70 to 96 wt .-% of a conventional abrasive component and optionally colorants and / or fragrances and / or bleaches and / or disinfectants.
  • the invention further relates to a process for the preparation of transportable and storage-stable, powdery, surfactant-containing scouring agents with improved flow properties, which practically do not separate due to the almost identical bulk density of the components and exceed the quality of standard products even after several months of storage, thereby characterized in that - in particular according to the process of DE-A 41 27 323 - a mixture of one or more surfactants and a non-surfactant liquid component with the addition of a solid is granulated and dried at the same time and the surfactant granules thus obtained are mixed in conventional mixers, for example a Lödige mixer , mixes with an abrasive component. Dyes and fragrances can also be mixed in in a known manner.
  • the abrasives according to the invention with the surfactant granulate and the abrasive component can be present as a physical mixture of the two components.
  • the scouring agent according to the invention can also be designed so that at least part of the abrasive component is contained in the surfactant granules.
  • the amount of granular surfactant in the entire abrasive is about 3 to 50% by weight, preferably 4 to 30% by weight, that of the abrasive component is 50 to 97% by weight, preferably 70 to 96% by weight.
  • the solid, particulate surfactant granules are granules which consist of a mixture of one or more surfactants and a non-surfactant liquid component which is present in liquid to pasty form under normal pressure at temperatures between 20 and 40 ° C. , and a mixed solid.
  • these surfactant granules have a bulk density of about 550 to 1,200 g / l, preferably 600 to 1,150 g / l.
  • the surfactant granules have no more than 5% by weight of particles with a diameter of more than 2 mm, in particular more than 0.5 mm.
  • the abrasive component in the scouring powder according to the invention has a bulk density of approximately 800 to 1,400 g / l, preferably 1,000 to 1,200 g / l. It is further preferred that the abrasive component in the scouring powder according to the invention has an average particle diameter of 0.001 to 0.4 mm, preferably 0.01 to 0.3 mm.
  • the aforementioned production process can be carried out in such a way that at least some of the at least one abrasive component is granulated with a mixture of one or more surfactants and a non-surfactant liquid component with the addition of a solid and simultaneously dried and the surfactant granules obtained in this way, if appropriate in the customary manner Mixers contacted with the remaining amount of abrasive component.
  • the surfactant granules consist of a mixture of the above-mentioned components in liquid to pasty form at temperatures between 20 and 40 ° C., the surfactant granules themselves having a bulk density of about 550 to 1,200 g / l, but in particular 600 to Has 1,150 g / l and the abrasive component has a bulk density of about 800 to 1,400 g / l, but in particular 1000 to 1,200 g / l. It is also preferred here that dyes and fragrances as well as bleaching agents and / or disinfectants are added in the aforementioned processes during the mixing process.
  • surfactants of the sulfonate and / or preferably of the sulfate type are used to prepare the surfactant granules.
  • These are the Cg - C * i8 alkylbenzenesulfonates and preferably those
  • Sulfuric acid monoesters from primary alcohols of natural and synthetic origin i.e. from fatty alcohols, e.g. from coconut fatty alcohols, tallow fatty alcohols, oleyl alcohol, lauryl, myristyl, palmityl or stearyl alcohol or the C9-C19 oxo alcohols and those of secondary alcohols of this chain length.
  • the sulfuric acid monoesters of the alcohols ethoxylated with 1 to 6 mol of ethylene oxide, such as 2-methyl-branched C9-C11 alcohols with an average of 3.5 mol of ethylene oxide, are also suitable.
  • Sulfated fatty acid monoglycerides are also suitable for the production of the granules.
  • surfactant granules which contain C12-C-
  • soaps made from natural or synthetic, preferably saturated or ethylenically unsaturated, fatty acids.
  • Natural fatty acids e.g. Soap mixtures derived from coconut, palm kernel or tallow fatty acids. Preferred are those which consist of 50 to 100% of saturated C-] 2-Ci8 fatty acid soaps and 0 to 50
  • % are composed of oleic acid soaps.
  • Granules containing soap mixed with other surfactants can also be used.
  • the anionic surfactants can be used in the form of their sodium, potassium, magnesium and ammonium salts and as water-soluble salts of organic bases, such as mono-, di- or triethanolamine.
  • the granules may optionally also contain nonionic surfactants, preferably those of the alkyl glycoside type, such as alkyl glycosides of the general formula R-0- (G) x, in which R has a primary straight-chain or aliphatic radical with 8 to 22, preferably 12, methyl-branched in the 2-position to 18 C atoms, G is a symbol which represents a glycose unit with 5 or 6 C atoms, and the degree of oligomerization x is between 1 and 10, preferably between 1 and 2 and in particular less than 1.6 is.
  • R-0- (G) x alkyl glycosides of the general formula R-0- (G) x, in which R has a primary straight-chain or aliphatic radical with 8 to 22, preferably 12, methyl-branched in the 2-position to 18 C atoms, G is a symbol which represents a glycose unit with 5 or 6 C atoms, and the degree of oligomerization x is between 1 and 10, preferably between 1 and
  • the mixture of one or more surfactants and the non-surfactant liquid component is granulated and at the same time dried with the addition of a water-soluble and / or water-insoluble inorganic or organic solid which consists of ingredients of abrasives.
  • a water-soluble and / or water-insoluble inorganic or organic solid which consists of ingredients of abrasives.
  • Preferred water-soluble inorganic solids are alkali carbonates, alkali hydrogen carbonates and alkali sulfates
  • water-soluble organic solids are solid peroxy bleaching agents and optionally bleach activators and preferably trisodium citrate dihydrate.
  • the water-insoluble solid constituents include, for example, silicon dioxide, crystalline or amorphous alkali silicates and layered silicates, fine-crystalline sodium aluminum silicates and calcium carbonate or any mixtures of such constituents.
  • the surfactant content of the surfactant granules is generally 10-60% by weight, preferably 20-55% by weight. the solids content corresponding to 40-90% by weight, preferably 45-80% by weight.
  • Solid water-soluble and water-insoluble, preferably inorganic compounds and mixtures thereof can serve as the abrasive component for the abrasives produced according to the invention.
  • These include, for example, alkali carbonates, alkali bicarbonates and alkali sulfates, alkali borates, alkali phosphates, silicon dioxide, crystalline or amorphous alkali silicates and layered silicates, finely crystalline sodium aluminum silicates and calcium carbonate.
  • the advantage of the water-soluble abrasive components is that the abrasive can be rinsed off practically without residue.
  • the particle sizes of the abrasive component can be selected according to the particular application.
  • the scouring agents according to the invention have excellent mixing stability, which means that the small amount of surfactant remains largely homogeneously distributed therein until the scouring agent is completely used up. Across from commercial abrasives show a clearly better flowability. Dust generation during transport is also significantly reduced. The users have a practically constant scouring powder quality across the entire pack filling.
  • a surfactant granulate made from 50% by weight of lauryl alcohol sulfate and 50% by weight of sodium carbonate and prepared by the process of DE 41 27 323 using water as the non-surfactant liquid component were mixed with 0.3% by weight of perfume,
  • Surfactant granules had a liter weight of 790 g.
  • the quartz flour had a weight of 1140 g.
  • the result was a pale blue colored, evenly fine-grained finished product with a better flow than the standard (see table).
  • quartz powder 72.5% by weight of quartz powder mixed well in a Lödige mixer.
  • the surfactant granules had a liter weight of 910 g.
  • the quartz flour had one Liter weight of 1140 g.
  • the uniformly grained, free-flowing finished product had a speckling of a pale green color.
  • a surfactant granulate according to DE 41 27 323 made of 10% by weight sodium stearate, 10% by weight C ⁇ -C-jo-alkylglucoside with 1-3 glucose units and 80
  • the so-called package test was carried out to determine the flowability.
  • a package was filled three times with 750 g of scouring powder according to Example 1, left to stand for 10 days, and then the amount of the powder which had flowed out was weighed after 30 seconds at successively set angles of 100 °, 120 °, 140 °, and 160 ° .
  • This was done in comparison with a conventional product consisting of a mixture of 4.8% tower powder containing surfactant (50% lauryl suifate, 50% soda) and quartz powder.
  • surfactant 50% lauryl suifate, 50% soda

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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

L'invention concerne des agents abrasifs constitués de granulés de tensioactifs formés à partir d'un mélange de tensioactifs et d'un composant liquide non tensioactif, ainsi qu'une matière solide incorporée au mélange, et au moins un composant abrasif usuel. L'invention concerne également un procédé de production de ces agents abrasifs, par mélange ou au moins par cogranulation partielle et le cas échéant par incorporation ultérieure du(des) composant(s) abrasif(s) au mélange.
PCT/EP1995/004350 1994-11-14 1995-11-06 Poudre a recurer presentant un pouvoir d'ecoulement ameliore et procede de production de ladite poudre WO1996015214A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95938417A EP0792340A1 (fr) 1994-11-14 1995-11-06 Poudre a recurer presentant un pouvoir d'ecoulement ameliore et procede de production de ladite poudre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944440621 DE4440621A1 (de) 1994-11-14 1994-11-14 Scheuerpulver mit verbesserter Rieselfähigkeit und Verfahren zu ihrer Herstellung
DEP4440621.5 1994-11-14

Publications (1)

Publication Number Publication Date
WO1996015214A1 true WO1996015214A1 (fr) 1996-05-23

Family

ID=6533272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/004350 WO1996015214A1 (fr) 1994-11-14 1995-11-06 Poudre a recurer presentant un pouvoir d'ecoulement ameliore et procede de production de ladite poudre

Country Status (3)

Country Link
EP (1) EP0792340A1 (fr)
DE (1) DE4440621A1 (fr)
WO (1) WO1996015214A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501696A1 (de) * 1974-01-21 1975-07-24 Colgate Palmolive Co Reinigungsmittelmischungen
DE2718550A1 (de) * 1976-04-30 1977-11-10 Unilever Nv Scheuermittel
EP0104679A2 (fr) * 1982-09-01 1984-04-04 Unilever N.V. Agglomérats abrasifs pour usage dans des compositions de nettoyage à récurer
EP0179574A1 (fr) * 1984-09-25 1986-04-30 The Procter & Gamble Company Alcool benzyl pour des agents de nettoyage pulvérulents
EP0430603A2 (fr) * 1989-11-24 1991-06-05 Unilever Plc Composition détergente
WO1992013936A1 (fr) * 1991-01-30 1992-08-20 Henkel Kommanditgesellschaft Auf Aktien Poudre a recurer faiblement moussant
DE4127323A1 (de) * 1991-08-20 1993-02-25 Henkel Kgaa Verfahren zur herstellung von tensidgranulaten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501696A1 (de) * 1974-01-21 1975-07-24 Colgate Palmolive Co Reinigungsmittelmischungen
DE2718550A1 (de) * 1976-04-30 1977-11-10 Unilever Nv Scheuermittel
EP0104679A2 (fr) * 1982-09-01 1984-04-04 Unilever N.V. Agglomérats abrasifs pour usage dans des compositions de nettoyage à récurer
EP0179574A1 (fr) * 1984-09-25 1986-04-30 The Procter & Gamble Company Alcool benzyl pour des agents de nettoyage pulvérulents
EP0430603A2 (fr) * 1989-11-24 1991-06-05 Unilever Plc Composition détergente
WO1992013936A1 (fr) * 1991-01-30 1992-08-20 Henkel Kommanditgesellschaft Auf Aktien Poudre a recurer faiblement moussant
DE4127323A1 (de) * 1991-08-20 1993-02-25 Henkel Kgaa Verfahren zur herstellung von tensidgranulaten

Also Published As

Publication number Publication date
DE4440621A1 (de) 1996-05-15
EP0792340A1 (fr) 1997-09-03

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