EP0432449A1 - Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons - Google Patents

Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons Download PDF

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Publication number
EP0432449A1
EP0432449A1 EP90121266A EP90121266A EP0432449A1 EP 0432449 A1 EP0432449 A1 EP 0432449A1 EP 90121266 A EP90121266 A EP 90121266A EP 90121266 A EP90121266 A EP 90121266A EP 0432449 A1 EP0432449 A1 EP 0432449A1
Authority
EP
European Patent Office
Prior art keywords
soap
added
composition according
nonionic surfactants
posteriorly
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.)
Withdrawn
Application number
EP90121266A
Other languages
German (de)
English (en)
Inventor
Giorgio Franzolin
Antonio Cordellina
Vito Savino
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.)
Mira Lanza SpA
Original Assignee
Mira Lanza SpA
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 Mira Lanza SpA filed Critical Mira Lanza SpA
Publication of EP0432449A1 publication Critical patent/EP0432449A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • 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
    • 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
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

  • This invention relates to powdered detergents for washing machines, and more particularly to the powdered detergents for washing machines, having a high content of nonionic surfactants. These detergents, actually, have a better cleansing capacity against dirt of the fatty type, and particularly for washing at low temperature.
  • detergents for washing machines utilize mixtures of surfactants which have beside a good cleansing power also a good foam-control capacity during washing and rinsing.
  • the foam-control is necessary to avoid that foam, by escaping out of the drum, may damage the washing machine. Moreover, the excess of foam hinders the mechanical flapping of linen within the washing machines, thus reducing the cleansing action of the detergent.
  • anionic surfactants of the sulfonate/sulfate type such as LAS, AS, nonionic surfactants such as natural or synthetic polycondensed alcohols with ethylene/propylene oxide and soaps derived from fatty acids substantially of natural origin, of varied compositions and as a mixture, such as fatty acids from tallow, coconut, fish, colza, etc.
  • mixtures from said surfactants which are suitable as to foam-control during washing and rinsing, may be: Surfactant I II III IV LAS + AS 5 7 6 8 NONIONIC 2 4 6 3 SOAP 3 3 3 5
  • soap reacts with the hardness salts of the water to form calcium and magnesium salts, which tend to control the foam during the entire washing cycle, particularly at high temperatures, and even in the rinsing step.
  • the control of foam can also be effected, as a partial alternative to soap, by using antifoaming substances or systems, such as silicones and waxes.
  • antifoaming substances or systems such as silicones and waxes.
  • the use of the above antifoaming substances can be effective in the washing step, but not as much effective in the rinsing step; therefore, the use of a certain amount of soap is preferred.
  • an aqueous slurry is formed of surfactants, builders, alkalizing, anti-redeposing, stabilizing, optical bleaching materials, etc.; successively said slurry is dried by atomization in a hot air stream, by using plants usually called spray-driers, thus obtaining a granulated powder which, mixed with other components which are usually heat-labile and, therefore, unfit for hot-processing, originates the final detergent.
  • the present trend is to reduce the maximum washing temperature: this is a direct function of the greater diffusion of synthetic fibres and colored fabrics.
  • nonionic surfactants having low ethylene oxide content and low HLB, and in amounts higher than usual.
  • nonionic surfactants are liquid at room temperature and are more volatile (high vapor tension).
  • the quality of the product is not satisfactory: the final product is greasy to the touch, is not flowable, and is packageable with difficulty.
  • soap may be used in detergents even in large percentage amounts, in combination with large amounts of nonionic surfactants added in "post addition", without incurring in the above-mentioned disadvantages of the known detergents produced according to the present state of the art.
  • the amount of soap in the slurry containing the other surfactants may be either eliminated or drastically reduced, with resulting advantages also from the standpoint of the slurry atomization, thereafter adding it by dry-mixing with the heat-labile components into the atomized detergent.
  • the manner according to the invention of incorporating soap into the detergent does not hinder the adsorption capacity of nonionic surfactants, thus enabling the production of flowable detergents containing high concentrations of nonionic surfactants which are liquid at room temperature.
  • soap in the manner set forth by the present invention is more convenient with respect to the silicone derivatives and waxes, both for economic and performance reasons: in fact, soap usually controls better than silicones the level of foam during the rinsing steps in a washing machine.
  • Soap which is used for dry-mixing into detergents according to the invention may have different physical forms: powder, granules, scales or the like. Usually, it is added in percentages of 0.5 to 8% b.w. based on the weight of the final product.
  • the weight ratio between soap and nonionic surfactants in the final product may range according to the invention between 10:1 and 2:1, with a content of nonionic surfactants in the final product ranging from 5 to 16% b.w.

Landscapes

  • 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)
EP90121266A 1989-11-15 1990-11-07 Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons Withdrawn EP0432449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT01259789A IT1236128B (it) 1989-11-15 1989-11-15 Detersivo in polvere, ad elevato contenuto di tensioattivi nonionici e di saponi.
IT1259789 1989-11-15

Publications (1)

Publication Number Publication Date
EP0432449A1 true EP0432449A1 (fr) 1991-06-19

Family

ID=11142033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121266A Withdrawn EP0432449A1 (fr) 1989-11-15 1990-11-07 Détergent sous forme de poudre avec une teneur élevée en agents tensio-actifs non-ioniques et en savons

Country Status (2)

Country Link
EP (1) EP0432449A1 (fr)
IT (1) IT1236128B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544944A1 (fr) * 1991-12-03 1993-06-09 The Procter & Gamble Company Particules de contrôle de la mousse active dans le cycle de rinçage
WO1994023013A1 (fr) * 1993-04-01 1994-10-13 Henkel Kommanditgesellschaft Auf Aktien Preparation de produits de lavage coulants
WO2004111175A1 (fr) * 2003-06-16 2004-12-23 Unilever Plc Composition detergente
EP3452570A4 (fr) * 2016-05-05 2020-01-01 The Procter and Gamble Company Compositions de nettoyage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916861A1 (de) * 1968-04-03 1969-11-06 Unilever Nv Verfahren zur Herstellung von Wasch- und Reinigungsmitteln
DE2545190A1 (de) * 1974-10-10 1976-04-15 Henkel & Cie Gmbh Pulverfoermige wasch- und reinigungsmittel mit einem gehalt an wasserunloeslichen silikaten, sowie verfahren zu deren herstellung
FR2328766A1 (fr) * 1975-10-22 1977-05-20 Henkel & Cie Gmbh Produits de lavage et de nettoyage pulverulents contenant des surfactifs non ioniques et du savon
EP0265258A2 (fr) * 1986-10-24 1988-04-27 Unilever Plc Composition détergente contenant des nouilles de savon

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916861A1 (de) * 1968-04-03 1969-11-06 Unilever Nv Verfahren zur Herstellung von Wasch- und Reinigungsmitteln
DE2545190A1 (de) * 1974-10-10 1976-04-15 Henkel & Cie Gmbh Pulverfoermige wasch- und reinigungsmittel mit einem gehalt an wasserunloeslichen silikaten, sowie verfahren zu deren herstellung
FR2328766A1 (fr) * 1975-10-22 1977-05-20 Henkel & Cie Gmbh Produits de lavage et de nettoyage pulverulents contenant des surfactifs non ioniques et du savon
EP0265258A2 (fr) * 1986-10-24 1988-04-27 Unilever Plc Composition détergente contenant des nouilles de savon

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544944A1 (fr) * 1991-12-03 1993-06-09 The Procter & Gamble Company Particules de contrôle de la mousse active dans le cycle de rinçage
EP0615540A4 (en) * 1991-12-03 1994-09-28 Procter & Gamble Rinse-active foam control particles.
TR27153A (tr) * 1991-12-03 1994-11-09 Procter & Gamble Durulamada aktif, köpük kontrol tanecikleri.
WO1994023013A1 (fr) * 1993-04-01 1994-10-13 Henkel Kommanditgesellschaft Auf Aktien Preparation de produits de lavage coulants
WO2004111175A1 (fr) * 2003-06-16 2004-12-23 Unilever Plc Composition detergente
US7867970B2 (en) 2003-06-16 2011-01-11 The Sun Products Corporation Detergent composition comprising lauric soap
EP3452570A4 (fr) * 2016-05-05 2020-01-01 The Procter and Gamble Company Compositions de nettoyage

Also Published As

Publication number Publication date
IT8912597A1 (it) 1991-05-15
IT1236128B (it) 1993-01-08
IT8912597A0 (it) 1989-11-15

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