WO1994023013A1 - Preparation de produits de lavage coulants - Google Patents

Preparation de produits de lavage coulants Download PDF

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Publication number
WO1994023013A1
WO1994023013A1 PCT/EP1994/000931 EP9400931W WO9423013A1 WO 1994023013 A1 WO1994023013 A1 WO 1994023013A1 EP 9400931 W EP9400931 W EP 9400931W WO 9423013 A1 WO9423013 A1 WO 9423013A1
Authority
WO
WIPO (PCT)
Prior art keywords
alkali metal
detergents
acid
salts
metal soap
Prior art date
Application number
PCT/EP1994/000931
Other languages
German (de)
English (en)
Inventor
Wolfgang Seiter
Adolf Wiche
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 EP94912525A priority Critical patent/EP0692022A1/fr
Publication of WO1994023013A1 publication Critical patent/WO1994023013A1/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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating 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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • 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
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • 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
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to a process for the production of free-flowing detergents and to the detergents obtained therewith.
  • the invention relates to detergents which contain alkali metal soaps.
  • alkali metal soaps in detergents for cleaning textiles has long been known. In recent times, however, the use of soap has increasingly been replaced by the use of other synthetic anionic surfactants.
  • Commercial detergents today only contain alkali metal soaps in the range from 0.5 to 5% by weight.
  • powdered detergents are produced by granulation essentially in two different ways. Around 80% of all detergents are produced using the spray drying principle. In the case of pressure atomization, the thermally stable, ie. H. prepares a slurry in the tower under the influence of hot air and does not decompose or volatile substances.
  • the slurry is atomized at pressures up to 100 bar.
  • the dried tower powder emerges from the tower cone at a temperature of around 90 to 100 ° C and is cooled to prevent clumping.
  • the missing recipe components have to be added.
  • Such components are thermally sensitive substances, such as sodium perborate, bleach activators, enzymes, fragrances, and occasionally also certain surfactants and colored speckles.
  • the preparation can take place immediately after the atomization process.
  • the tower powder is fed into a storage bunker.
  • the tower powder and the remaining components are metered in by means of belt scales with mutual locking and fed via a collecting belt to a mixer which works well but to avoid abrasion.
  • Liquid dosage components can be dosed via volume metering pumps on the way to the mixer or in the mixing unit itself.
  • the finished powder product is sieved and packaged.
  • crystallization processes for the production of dust-free, granulated products are defined under the generic term “spray mixing process”. In recent times, the extrusion and compacting of detergents has also become increasingly important.
  • the metered solids and liquids are usually fed to a spray mixing apparatus after partial or complete premixing.
  • Mixing units are suitable for mixing the solids, for spraying on the liquids and for agglomeration to form dust-free products, the mixing action of which is based on the gravity of the powder during rotating movement, on the movement of the powder by means of internals or on the swirling of the powder by air.
  • thermally sensitive substances such as perborate can be added.
  • a process for the production of detergents and cleaning agents which comprises an active detergent mixture of a nonionic synthetic detergent, an anionic synthetic detergent and an alkali soap, and a skeleton salt mixture of an alkali polyphosphate and a water-soluble alkali salt of the nitrilotries - includes acetic acid. It is proposed that an aqueous slurry containing nitrilotriacetic acid, sodium tripolyphosphate and a nonionic synthetic detergent, an anionic synthetic detergent and less than the total amount of soap required in the end product be heat dried and the remainder of the the amount of soap required in the preparation step for the heat-dried granular washing and cleaning agents can be added in solid, finely divided form.
  • the granular detergent and cleaning agent obtained in this way accordingly has satisfactory free-flowing properties and the hygroscopicity of the product is considerably reduced.
  • DE-A-25 47 203 discloses similar powdery, nonionic surfactants and soap-containing detergents and cleaning agents, as well as processes for their production.
  • two powdery constituents of different compositions namely one containing at least a part of the nonionic surfactant, poor in soap compared to the total composition of the two powdery constituents, obtained by spray drying, from calcium-binding water-insoluble aluminum sodium silicates essentially free powder and a further powder, which is enriched in soap at least in a ratio of 3: 1 compared to the total composition of the two powders.
  • EP-A-0432449 discloses the use of soap in detergents in the range from 0.5 to 8%.
  • the soap is gradually added to the base powder obtained by spray drying.
  • the soap is preferably used in narrow particle size distributions. This is intended to avoid negative effects on the non-ionic surfactants contained in the detergents.
  • Scale-like soaps are preferably used, and in particular the flowability of a powder obtained is assessed.
  • EP-A-0 265 258 discloses the use of needle-shaped soap powder.
  • Residue remains in the induction channel, which is added to the wash liquor during rinses following the washing process and remains as a residue on the laundry.
  • the invention consists in providing a process for the production of free-flowing detergents with a bulk density in the range from 600 to 1000 g / l, which have an alkali metal soap content in the range from 0.2 to 5% by weight. -%, based on the detergent, which is produced by known granulation processes, for example by atomizing pressure nozzles or spray mixing, and subsequent processing to give the finished product, finely divided alkali metal soap having 12 to 18 carbon atoms in the fatty acid residue being added during the processing.
  • the term free-flowing detergent according to the present invention are in the context thus refers to all known methods by means of which granules erha "th. Includes the possibility extruded detergent prepared according to sici known extrusion process.
  • a Austexu ⁇ gsform The invention provides that granules produced by pressure atomization or the spray mixing process are subsequently extruded, the alkali metal soaps optionally being added here before the extrusion, but it is also possible to retrofit the extruded detergents with alkali metal soaps to act upon.
  • Soaps in particular alkali metal soaps, are known to be used in commercial detergents, inter alia as foam inhibitors.
  • these soaps are of natural or synthetic origin with a high proportion of C ⁇ g_24 fatty acids.
  • Other suitable foam inhibitors are, for example, organopolysiloxanes and their mixtures with microfine, optionally silanized silica, and paraffins, waxes, microcrystalline waxes and their mixtures with silanized silica or bistearylethylenediamide. Mixtures of different foam inhibitors used, for example those made of silicone, paraffins or waxes.
  • alkali metal soaps with a grain size of not more than 1.6 m, in particular not more than 1.2 mm, are preferably defined. Since, as is known, the surface approximately represents a function of the grain size, it is particularly preferred to make the grain size of the alkali metal soaps as small as possible in order to achieve a maximum improvement in the washing-in behavior through a high degree of surface coverage, with the least possible change in the bulk density of the detergent to reach.
  • the amount of finely divided alkali metal soap at the upper limit of the range from 0.2 to 5% by weight.
  • a content of finely divided alkali metal soap in the range from 2 to 5% by weight, in particular 3 to 5% by weight is particularly preferred.
  • the detergents thus produced according to the invention preferably contain finely divided alkali metal soap in the range from 0.2 to 1.5, in particular 0.2 to 1,% by weight.
  • one embodiment of the present invention consists in adding the entire amount of finely divided alkali metal soap to the detergents during the preparation step, it is likewise possible to add a certain proportion of soap to the detergent preparation form, for example the detergent slurry.
  • the detergent behavior of the detergents is improved in an optimal manner, it is preferred to add at least 50% by weight of the alkali metal soaps in finely divided form only during the preparation.
  • the remaining amount of soaps can already be added during the granulation process, for example during spray drying.
  • Conventional soaps with a broad chain distribution as defined above can then also be used here in this process stage.
  • the alkali metals of the finely divided alkali metal soaps are preferably selected from sodium and / or potassium salts.
  • the process is characterized in that the finely divided alkali metal soaps are selected from salts of the fatty acids: lauric acid, myristic acid, palmitic acid, stearic acid or salts of natural fatty acid mixtures of coconut acid, palm kernel acid or tallow fatty acid.
  • a further embodiment of the present invention consists in the use of finely divided alkali metal soaps with a chain length in the fatty acid residue of in particular 12 to 16 carbon atoms.
  • detergents can be produced which, of course, in addition to soap can also contain other constituents known from the field of detergent technology. These are known to the person skilled in the art from a wealth of primary and secondary literature.
  • Anionic surfactants, nonionic surfactants, builder substances and cobuilder substances should be mentioned in particular.
  • anionic surfactants Cg-Ci3-alkylbenzenesulfonates and / or Cg-Cis-alkylsulfates are particularly preferred.
  • Zeolite, crystalline layered silicates, in particular disilicates, and cobuilders are preferably used as builder substances, and polycarboxylates, polymeric polycarboxylates and / or fat-dissolving or fat-repelling polymers are used as cobuilders.
  • detergents may contain further ingredients selected from bleaching agents, bleach activators, optical brighteners, enzymes, enzyme stabilizers, salts of citric acid, salts of Polyphosphonic acid, neutral filling salts, dyes, fragrances, opacifiers and pearlescent agents, graying inhibitors, fabric softening substances, and water-soluble salts such as bicarbonates, carbonates, silicates or mixtures of these salts.
  • this relates to detergents which can be obtained by the process defined above.
  • Ci2-Ci4 fatty alcohol with 3 E0, 2% by weight taig fatty alcohol with 5 E0, 0.2% by weight fluorescent brightener
  • coconut fatty acid soap sodium salt
  • carbon chain length essentially 12 to 16 carbon atoms
  • grain spectrum indication by weight
  • Example 2 Analogously to Example 1, the same amount of the soap mentioned was added to the slurry for spray drying.
  • the bulk density was 630 g / l.
  • Example 2 Analogously to Example 1, 5% by weight of the soap defined in Example 1, based on the made-up detergent, were admixed in the preparation step. A bulk density of 605 g / 1 was obtained.
  • the detergents were checked for washability in a commercially available washing machine dispenser (Zanussi 285). This washing device applies among other things. with regard to the flushability as particularly critical.
  • the induction devices were clamped in a holder, which consisted of a metal frame with laterally adjustable support rails. After connection to the water network, a fixed water flow rate per time was set for the induction channel. The amount of water was regulated by a pressure reducing valve, which was connected between the water connection point and the induction device. Electrically controlled solenoid valves prevented the water from flowing in unevenly.
  • washing powder 100.00 g were added to the induction device. This was the clear wash chamber.
  • the washing powder was always added uniformly by means of a funnel with a sealing cap fixed above the middle of the chamber.
  • the drop height of the powder to be tested was measured from the top edge of each induction chamber and was 10 cm from the bottom edge of the hopper with the flap open.
  • the dispenser was dried before each addition.
  • the flushing process was started 60 seconds after opening the funnel closure. After opening the water inlet, a maximum of 10 1 water was allowed to run in. After this amount of water, the inflow was stopped and the remaining amount of detergent was determined, which was deducted 30% of the weight (empirically determined value) for water taken up.
  • the mean is formed from five individual determinations.

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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)
  • Detergent Compositions (AREA)

Abstract

Afin d'améliorer la solubilité de produits de lavage coulants ayant des masses volumiques apparentes comprises entre 600 et 1000 g/l, et préparés par granulation puis traités, on ajoute aux produits ainsi obtenus des savons finement pulvérisés de métaux alcalins contenant entre 12 et 18 atomes de carbone dans le résidu acide gras.
PCT/EP1994/000931 1993-04-01 1994-03-23 Preparation de produits de lavage coulants WO1994023013A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94912525A EP0692022A1 (fr) 1993-04-01 1994-03-23 Preparation de produits de lavage coulants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4310672.2 1993-04-01
DE19934310672 DE4310672A1 (de) 1993-04-01 1993-04-01 Herstellung rieselfähiger Waschmittel

Publications (1)

Publication Number Publication Date
WO1994023013A1 true WO1994023013A1 (fr) 1994-10-13

Family

ID=6484450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/000931 WO1994023013A1 (fr) 1993-04-01 1994-03-23 Preparation de produits de lavage coulants

Country Status (3)

Country Link
EP (1) EP0692022A1 (fr)
DE (1) DE4310672A1 (fr)
WO (1) WO1994023013A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA008170B1 (ru) * 2002-04-19 2007-04-27 Циба Спешиалти Кемикэлз Холдинг Инк. Агенты контроля пенообразования
GB0313901D0 (en) 2003-06-16 2003-07-23 Unilever Plc Detergent composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432449A1 (fr) * 1989-11-15 1991-06-19 Mira Lanza S.P.A. Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons
EP0544944A1 (fr) * 1991-12-03 1993-06-09 The Procter & Gamble Company Particules de contrôle de la mousse active dans le cycle de rinçage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432449A1 (fr) * 1989-11-15 1991-06-19 Mira Lanza S.P.A. Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons
EP0544944A1 (fr) * 1991-12-03 1993-06-09 The Procter & Gamble Company Particules de contrôle de la mousse active dans le cycle de rinçage

Also Published As

Publication number Publication date
DE4310672A1 (de) 1994-10-06
EP0692022A1 (fr) 1996-01-17

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