EP0087233A1 - Verfahren zur Herstellung von schwach schäumenden Detergenszusammensetzungen - Google Patents

Verfahren zur Herstellung von schwach schäumenden Detergenszusammensetzungen Download PDF

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Publication number
EP0087233A1
EP0087233A1 EP83300540A EP83300540A EP0087233A1 EP 0087233 A1 EP0087233 A1 EP 0087233A1 EP 83300540 A EP83300540 A EP 83300540A EP 83300540 A EP83300540 A EP 83300540A EP 0087233 A1 EP0087233 A1 EP 0087233A1
Authority
EP
European Patent Office
Prior art keywords
process according
suds
suppressant
oily
spray
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP83300540A
Other languages
English (en)
French (fr)
Other versions
EP0087233B1 (de
Inventor
Malcolm Nigel Alan Carter
Peter Robert Garrett
Dennis Giles
Appaya Raghunath Naik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT83300540T priority Critical patent/ATE23560T1/de
Publication of EP0087233A1 publication Critical patent/EP0087233A1/de
Application granted granted Critical
Publication of EP0087233B1 publication Critical patent/EP0087233B1/de
Expired legal-status Critical Current

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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
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—Hydrocarbons
    • 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
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • 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
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/384—Animal products

Definitions

  • This invention relates to a process for producing low-sudsing detergent compositions, and to the compositions produced.
  • Low-sudsing detergent compositions are increasing in popularity as the number of front-loading, drum-type washing machines increases, and are now widespread. They are generally in spray-dried, particulate form, although liquids are now being introduced, and are formulated with a high sudsing detergent system together with a suds-suppressant.
  • the high sudsing detergent system is usually either an anionic detergent-active compound alone, or a combination of an anionic and a nonionic detergent-active compound.
  • the suds-suppressant component can be selected from a wide variety of types, examples being alkyl phosphoric acid'esters and their salts, hydrocarbons such as petroleum jelly and waxes, silicone oils and hydrophobed silicas, and mixtures thereof.
  • the present invention provides a process for the manufacture of a low-sudsing detergent composition which comprises forming an essentially spray-dried detergent composition and adding a suds-suppressant to it by spraying, the suds-suppressant comprising an intimate mixture of an oily or waxy substance and a nitrogen compound of the general formula or where R 1 and R 3 represent aliphatic hydrocarbon residues containing 14-22 carbon atoms, R 2 and R 4 represent hydrogen atoms or aliphatic hydrocarbon residues containing 1-22 carbon atoms, and R represents an aliphatic residue containing 1-9 carbon atoms.
  • Preferred compounds are ⁇ , ⁇ -dialkylamide alkanes, that is to say compounds of the general formula (iv) above, and of these ⁇ , ⁇ -distearylamide methane or ethane (commonly known as methylene and ethylene distearamides) that is compounds of the general formula: I where n is 1 or 2, are most preferred.
  • oily substances are mineral, vegetable or animal oils, colourless mineral oils being preferred. Either light or heavy mineral oil or mixtures thereof may be employed but, of course, any substance used must be of low volatility at normal fabric-washing temperatures.
  • oils which are suitable are sesame oil, cottonseed oil, corn oil, sweet almond oil, olive oil, wheat germ oil, rice bran oil or peanut oil, or animal oils such as lanolin, neat's foot oil, bone oil, sperm oil or cod liver oil.
  • Preferred waxy materials are of mineral origin, especially those derived from petroleum, including microcrystalline and oxidised microcrystalline-petroleum waxes and paraffin waxes.
  • a preferred material is petroleum jelly, (often sold under the trade mark "Vaseline” by Cheseborough-Ponds Limited), desirably one having a drop-melting point of from 20°-120°C, preferably 45-65°C.
  • the term 'drop-melting point' as used herein is used in the sense defined in ASTM designation D127-63.
  • Synthetic waxes, or Montan waxes, or natural waxes such as beeswax, candelilla and carnauba waxes may also be used if desired.
  • waxes described may be used alone or in admixture with other waxes.
  • the suds-suppressant combination may be added to the essentially high sudsing composition in an amount such that it forms from 0.1 to 5%, preferably 0.5 to 3.5% by weight of the final composition.
  • the relative proportions of the nitrogen compound and the oily substance in the suds-suppressant combination are generally from 2.5:97.5 to 9:1, preferably 5:95 to 1:3, the ratios being expressed by weight.
  • the suds-suppressant combination may be mixed with a dispersing agent such as a nonionic surfactant.
  • a dispersing agent such as a nonionic surfactant.
  • Typical nonionic surfactants may for example be either ethoxylated alcohols or sorbitan esters.
  • the relative proportions of dispersing agent to the suds-suppressant combination are generally from 0.2:99.8 to 3:1.
  • the suds-suppressant combination may also be mixed with other antifoam ingredients such as fatty acids and their soaps, alkyl phosphoric acids and their salts with metal ions, and hydrophobed silica.
  • the relative proportion of other ingredients to the nitrogen compounds (i)-(iv) is from 1:9 to 9:1.
  • compositions prepared by the process of this invention will contain either an anionic, a nonionic, a zwitterionic or a cationic surfactant or a mixture of these.
  • Other components which will normally be present include detergency builders, fabric conditioning agents, bleaching agents, bleach activators, corrosion inhibitors, anti-redeposition agents, fluorescers, stabilisers and a substantial proportion of moisture.
  • Typical anionic surfactants which may be present in amounts of from about 2 to 35% by weight of the finished composition, are sodium alkylbenzene sulphonates, preferably the C10-C14 alkyl compounds, sodium primary and secondary alkyl sulphates, preferably the C 10 -C 22 alkyl sulphates, sodium olefine sulphonates, preferably the C 10 -C 18 sulphonates, sodium alkane sulphonates and sodium alcohol ether sulphates. Soaps of fatty acids may also be present, preferably the sodium and potassium salts of C 10 -C 22 fatty acids, both saturated and unsaturated.
  • soap is the sole anionic surfactant it may be present in an amount up to about 65% by weight of the finished composition, down to about by weight when other anionic surfactants are present.
  • Typical soaps which can be used are those formed from coconut oil, tallow and natural oils containing high proportions of oleic acid such as sunflower oil.
  • compositions produced by the process of the invention can also contain nonionic surfactants, preferably ethoxylated primary and secondary alcohols of from 8 to 25 carbon atoms containing from 3 to 25 moles of ethylene oxide per mole of alcohol. These materials may be present in an amount of from 1 to 15% by weight, based on the weight of the finished composition.
  • Typical detergency builders which can be used are the water-soluble phosphates, carbonates, percarbonates and aluminosilicates, particularly the sodium and potassium salts of these compounds.
  • Organic builders may also be used, examples being sodium carboxymethyloxysuccinate, sodium citrate, sodium polyacrylates and sodium nitrilotriacetate. Any of these compounds, or any other builder compound, in any suitable mixture, may be used in amounts of from 5 to 50% by weight of the finished composition...
  • the components of the suds-suppressant must be in intimate mixture prior to spraying on to the essentially high sudsing spray-dried detergent composition, since we have discovered that if the two components are added separately, inferior suds control is produced.
  • the normal method for making powdered detergent compositions is to combine the spray-dried base powder with components such as sodium perborate, sodium sulphate, enzyme compositions and perfume in a dry-dosing step.
  • This step may be performed in accordance with the invention either prior to, simultaneously with, or after the spraying of the essentially high sudsing spray-dried detergent composition with the intimate mixture of the nitrogen compound and the oily substance.
  • Another approach to incorporation of the intimate mixture is to spray it onto a carrier material which is then mixed with a spray dried detergent composition.
  • carrier materials include sodium tripolyphosphate and zeolite.
  • Other more preferred materials include water soluble porous organic and inorganic materials suh as sodium perborate monohydrate starch, and mixtures thereof.
  • carrier materials could be prepared by spray drying a slurried mixture of inorganic salts in for example the manner taught by European patent specification EP 22 998, British applications 2 005 715, 1 595 769, 1 595 770, 2 002 808 or US patent 3 984 527.
  • the following two detergent powders were produced by a process involving slurry making and counter-current spray-drying steps.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Detergent Compositions (AREA)
EP83300540A 1982-02-04 1983-02-03 Verfahren zur Herstellung von schwach schäumenden Detergenszusammensetzungen Expired EP0087233B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83300540T ATE23560T1 (de) 1982-02-04 1983-02-03 Verfahren zur herstellung von schwach schaeumenden detergenszusammensetzungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8203233 1982-02-04
GB8203233 1982-02-04

Publications (2)

Publication Number Publication Date
EP0087233A1 true EP0087233A1 (de) 1983-08-31
EP0087233B1 EP0087233B1 (de) 1986-11-12

Family

ID=10528111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300540A Expired EP0087233B1 (de) 1982-02-04 1983-02-03 Verfahren zur Herstellung von schwach schäumenden Detergenszusammensetzungen

Country Status (3)

Country Link
EP (1) EP0087233B1 (de)
AT (1) ATE23560T1 (de)
DE (1) DE3367617D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126500A1 (de) * 1983-04-20 1984-11-28 Unilever N.V. Schwachschäumende flüssige Detergenszusammensetzungen
EP0274142A2 (de) * 1986-11-13 1988-07-13 The Procter & Gamble Company Polyamid-Weichmacher enthaltendes Reinigungsmittel
US5002695A (en) * 1987-09-30 1991-03-26 Henkel Kommanditgesellschaft Auf Aktien Foam regulators suitable for use in detergents and cleaning preparations
US6200498B1 (en) 1997-08-29 2001-03-13 Henkel Kommanditgesellschaft Auf Aktien Process for producing paraffin-containing foam regulators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2043088A1 (de) * 1970-08-31 1972-03-02 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
DE2043087A1 (de) * 1970-08-31 1972-03-02 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
DE2043086A1 (de) * 1970-08-31 1972-03-30 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
EP0021830A1 (de) * 1979-06-27 1981-01-07 Unilever Plc Schwach schäumende Reinigungsmittelzusammensetzungen
EP0045208A1 (de) * 1980-07-29 1982-02-03 Unilever Plc Verfahren zur Herstellung von Detergenspulver mit kontrolliertem Schaum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2043088A1 (de) * 1970-08-31 1972-03-02 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
DE2043087A1 (de) * 1970-08-31 1972-03-02 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
DE2043086A1 (de) * 1970-08-31 1972-03-30 Henkel & Cie GmbH, 4000 Dusseldorf Schwachschaumendes Wasch , Reimgungs und Enthartungsmittel
EP0021830A1 (de) * 1979-06-27 1981-01-07 Unilever Plc Schwach schäumende Reinigungsmittelzusammensetzungen
EP0045208A1 (de) * 1980-07-29 1982-02-03 Unilever Plc Verfahren zur Herstellung von Detergenspulver mit kontrolliertem Schaum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126500A1 (de) * 1983-04-20 1984-11-28 Unilever N.V. Schwachschäumende flüssige Detergenszusammensetzungen
EP0274142A2 (de) * 1986-11-13 1988-07-13 The Procter & Gamble Company Polyamid-Weichmacher enthaltendes Reinigungsmittel
EP0274142A3 (en) * 1986-11-13 1989-06-28 The Procter & Gamble Company Detergent composition containing a polyamide softening agent
US5002695A (en) * 1987-09-30 1991-03-26 Henkel Kommanditgesellschaft Auf Aktien Foam regulators suitable for use in detergents and cleaning preparations
US6200498B1 (en) 1997-08-29 2001-03-13 Henkel Kommanditgesellschaft Auf Aktien Process for producing paraffin-containing foam regulators

Also Published As

Publication number Publication date
ATE23560T1 (de) 1986-11-15
DE3367617D1 (en) 1987-01-02
EP0087233B1 (de) 1986-11-12

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