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WO1994007989A1 - Procede de nettoyage - Google Patents

Procede de nettoyage Download PDF

Info

Publication number
WO1994007989A1
WO1994007989A1 PCT/EP1993/002559 EP9302559W WO9407989A1 WO 1994007989 A1 WO1994007989 A1 WO 1994007989A1 EP 9302559 W EP9302559 W EP 9302559W WO 9407989 A1 WO9407989 A1 WO 9407989A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning medium
process according
enzyme
aqueous cleaning
lipases
Prior art date
Application number
PCT/EP1993/002559
Other languages
English (en)
Inventor
Johan Haverkamp
Pieter Van Der Vlist
Marinus Maria C. G. Warmoeskerken
Simon Willemse
Original Assignee
Unilever N.V.
Unilever Plc
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 N.V., Unilever Plc filed Critical Unilever N.V.
Priority to DE69310526T priority Critical patent/DE69310526T2/de
Priority to JP6508653A priority patent/JPH08502087A/ja
Priority to CA002144063A priority patent/CA2144063C/fr
Priority to AU48184/93A priority patent/AU4818493A/en
Priority to EP93920792A priority patent/EP0662121B1/fr
Publication of WO1994007989A1 publication Critical patent/WO1994007989A1/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
    • C11D3/16—Organic compounds
    • C11D3/38—Products with no well-defined composition, e.g. natural products
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
    • 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
    • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
    • C11D3/38636—Preparations containing enzymes, e.g. protease or amylase containing enzymes other than protease, amylase, lipase, cellulase, oxidase or reductase
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/46—Specific cleaning or washing processes applying energy, e.g. irradiation

Definitions

  • This invention relates to a cleaning process, and more in particular to a process for cleaning soiled articles such as fabrics, using an ultrasonic energy source.
  • the invention relates to a process whereby soiled articles are immersed in an enzymatic aqueous cleaning medium and radiated with ultrasonic energy.
  • EP-A-258 816 (Henkel) suggests the use of an enzymatic aqueous medium in an ultrasonic fabric washing process.
  • Suitable enzymes are in particular alkaline proteases. It is shown that the presence of an alkaline protease in the wash liquor has a beneficial effect on the cleaning performance of the detergent product in an ultrasonic washing process.
  • amylases, Upases, pectinases, nucleases and/or oxydoreductases can also be used.
  • JP-A-01026779 (Kao) discloses an ultrasonic fabric washing process whereby the cleaning solution contains a cellulase enzyme.
  • a process for cleaning articles whereby soiled articles are immersed in an enzymatic aqueous cleaning medium and radiated with ultrasonic energy, characterised in that the enzymatic aqueous cleaning medium contains an enzyme having lipolytic activity of 0.1 to 500 LU/ l.
  • the soiled articles are fabrics.
  • the cleaning medium comprises surface active agents.
  • soiled articles such as fabrics are immersed in an enzymatic aqueous cleaning medium and radiated with ultrasonic energy.
  • the principles of ultrasonic washing are well known in the art and can, for instance, be derived from the earlier mentioned EP-A-258 816 (Henkel) .
  • ultrasonic energy for the purpose of this application we define ultrasonic energy as usually involving frequencies of about 10 kilo Hertz (kHz) to about 100 kHz, however, higher frequencies of up to 10 mega Hertz (MHz) may also be used.
  • ultrasonic energy will be applied to the enzymatic aqueous cleaning medium for about 15 minutes or less, preferably between 0.25 to 10 minutes and more preferably between 0.5 to 5 minutes.
  • the wash load may be agitated slowly, preferably during "pulsing periods", i.e. periods in which no ultrasonic energy is applied to the wash load.
  • the enzymatic aqueous cleaning medium used in the present process comprises 0.05 to 50 g/1, preferably 0.1 to 10 g/1 (most preferably up to 5 g/1) of a conventional detergent composition, which includes conventional detergent ingredients such as surface active agents, builders, etc..
  • the surface active agents may be chosen from the surfactants described "Surface Active Agents” Vol. 1, by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon*s Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in "Tenside-
  • the surfactants preferably comprise one or more nonionic and/or anionic surfactants. They may also comprise amphoteric or zwitterionic detergent compounds, but this is not normally desired owing to their relatively high cost.
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of corn-pounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • nonionic detergent compounds are C 6 -C 22 alkyl phenol-ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic C 8 -C 18 primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 10 EO.
  • suitable nonionic surfactants are alkyl poly- glycosides and polyhydroxy fatty acid amide surfactants such as disclosed in O-A-92/06154 (Procter & Gamble) .
  • Suitable anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C 8 -C 18 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C 9 -C 20 benzene sulphonates, particularly sodium linear secondary alkyl C 10 -C 15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • the preferred anionic detergent compounds are sodium C 12 - C 18 alkyl sulphates owing to their favourable compatibility with lipolytic enzymes.
  • Surface active agents may preferably be present in amounts of from 0.1% by weight of the composition, more preferably 0.5% by weight and preferably up to 70% by weight, more preferably up to 60% by weight of the composition.
  • the level of surface active agents is preferably from 5% by weight, more preferably from 10% by weight and preferably up to 60 % by weight, more preferably up to 40 % by weight, most preferably up to 35% by weight.
  • the level of surface active agents is preferably from 0.5% by weight to amounts to about 60% by weight depending upon their type and properties.
  • Preferably low-to non-foaming nonionic surfactant are used in properly built or highly built compositions in amounts to 7% by weight. Higher levels of highly detersive surfactants, i.e. up to 70% by weight, preferably 60% by weight, may be used in lower builder containing active/enzyme-based compositions.
  • the concentration of surface active agents in the wash liquor is from 0.001 to 20 g/1, preferably from 0.05 to 10 g/1, most preferably up to 5 g/1.
  • the enzymatic detergent composition used in the present invention may further contain from 5 to 60%, preferably from 20 to 50% by weight of a detergency builder.
  • This detergency builder may be any material capable of reducing the level of free calcium ions in the wash liquor and will preferably provide the composition with other beneficial properties such as an alkaline pH, the suspension of soil removed from the fabric and the suspension of the fabric- softening clay material.
  • detergency builders include precipitating builders such as the alkali metal carbonates, bicarbonates, orthophosphates, sequestering builders such as the alkali metal tripolyphosphates or nitrilotriacetates, or ion exchange builders such as the amorphous alkali metal aluminosilicates or the zeolites.
  • the characteristic feature of the process of the present invention is that an enzyme having lipolytic activity is used in the ultrasonic cleaning process.
  • any enzyme having sufficient lipolytic activity may be used in the process.
  • a lipase derived from micro ⁇ organisms are used, more preferably a bacterial or fungal lipase.
  • the enzyme having lipolytic activity is selected from Thermomvces lipases or variants thereof, cutinases or variants thereof, Pseudomonas lipases or variants thereof, Fusarium lipases or variants thereof and/or Chromobacter lipases or variants thereof.
  • EP-A-214 761 (Novo/Nordisk) gives detailed description of lipases derived from organisms of the species Pseudomonas cepacia. and certain uses therefor.
  • EP-A-258 068 (Novo/Nordisk) gives detailed description of lipases derived from organisms of the genus Thermomvces (previous name Humicola) and certain uses therefor.
  • EP-A-205 208 and EP-A-206 390 (Unilever) which relate to a class of lipases defined on the basis of their immunological relationships, and describe their use in detergent compositions and textile washing.
  • the preferred lipases are those derived from P. fluorescens, P. gladioli and Chromobacter species.
  • EP-A-331 376 (Amano) describes lipases and their production by rDNA technique, and their use, including an amino acid sequence of lipase from Pseudomonas cepacia. Further lipase enzymes produced by rDNA technique are described in for example O-A-89/09263 (Gist-Brocades) and EP-A-218 272 (Gist-Brocades) .
  • Humicola lanuginosa has so far found wide-spread commercial application as additive for fabric washing products. It is available from Novo/Nordisk under the trade name Lipolase®.
  • the present invention also provides a number of combinations of the enzyme having lipolytic activity and further, conventional constituents used in detergent systems, to provide useful advantage in the ultrasonic removal of fatty material and material adsorbed to the fatty material in soil on textile.
  • detergent compositions can be of any of many known kinds, for example as described in GB- A-l 372 034 (Unilever) , US-A-3 950 277, US-A-4 011 169 and EP-A-179 533 (Procter & Gamble) , EP-A-205 208 and EP-A-206 390 (Unilever) , JP-A-63-078000 (Lion) , and Research Disclosure 29056 of June 1988.
  • the detergent compositions can be formulated as described in EP-A-407 225.
  • the enzyme having lipolytic activity can usefully be added to the detergent composition in the form of a granular composition, a solution or a slurry of lipolytic enzyme with carrier material (e.g. as in EP-A-258 068 and Savinase® and Lipolase® products of Novo/Nordisk) .
  • carrier material e.g. as in EP-A-258 068 and Savinase® and Lipolase® products of Novo/Nordisk
  • the amount of enzyme having lipolytic activity can be chosen within wide limits.
  • the enzymatic aqueous cleaning medium contains 0.1 to 500 LU/ml. It is especially preferred to use about 0.5 to 50 LU/ml.
  • lipase units are defined as they are in EP-A- 258 068 (Novo/Nordisk) . Similar considerations apply mutatis mutandis in the case of other enzymes, which may also be present.
  • protease is present together with the enzyme having lipolytic activity, by selecting such protease from those having pi lower than 10.
  • EP-A-271 154 (Unilever) describes a number of such proteases.
  • Proteases for use together with lipolytic enzyme may include subtilisin of for example BPN* type or of some of the other types of subtilisin disclosed in the literature, some of which have already been proposed for detergents use, e.g.
  • WO-A-92/08779 discloses liquid detergent compositions comprising a lipase and a modified bacterial serine protease, which is said to be more compatible with the lipase.
  • the proteases are modified in that the methionine adjacent to the active-site serine has been replaced by another amino acid.
  • the cleaning process of the present invention is not only suitable for cleaning fabrics, but the principle of the invention can also be applied in the cleaning of other soiled objects such as dishes and/or other table ware, or medical equipment.
  • the following wash experiments were performed in a standard Tergotometer containing 1 1 of tap water (9° German Hardness) .
  • Eight EMPA 101 (ex Eidgen ⁇ ssische Material- prufungs GmbH St. Gallen, Switzerland) test cloths of 7 x 7 cm were washed for 10 minutes at a temperature of 30°C, at an agitator speed of 100 rpm.
  • the ultrasonic energy was supplied by a Branson ultrasonic probe having a tip of 1/8" with a mean power of 38 Watt.
  • the operating frequency was 23 kHz.
  • the experimental setup is shown in Figure 1.
  • the wash liquor contained 3 g/1 of a detergent product having the following composition (in % by weight) :
  • Example 1 was repeated using the following detergent product at 2.6 g/1:
  • Acrylic/Maleic copolymer (CP5 ex BASF) 4.0
  • Example 1 was repeated using the following detergent product at 2 g/1:
  • Example 1 was repeated using the following detergent product at 3 g/1:
  • the pH of the wash liquor was adjusted to 9.2 using a HC1 solution, and further the liquor had 5 FH.
  • a US bath was used at 33 kHZ, 80 Watt, at 30°C for 30 minutes.
  • the level of H 3 labelled glycerol in the wash liquor was determined and the detergency % (i.e.
  • wash liquor comprising an enzyme having lipolytic activity. It is believed that the wash results will be even better when surface active agents are present, e.g. as regards anti- redeposition.

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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)
  • Cleaning By Liquid Or Steam (AREA)
  • Enzymes And Modification Thereof (AREA)

Abstract

L'invention concerne un procédé pour nettoyer des articles où des articles souillés sont immergés dans un milieu de nettoyage aqueux enzymatique et exposés à l'énergie d'ultrasons. Le procédé est caractérisé par le fait que le milieu aqueux de nettoyage enzymatique contient un enzyme ayant une activité lipolytique.
PCT/EP1993/002559 1992-09-25 1993-09-20 Procede de nettoyage WO1994007989A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69310526T DE69310526T2 (de) 1992-09-25 1993-09-20 Reinigungsverfahren
JP6508653A JPH08502087A (ja) 1992-09-25 1993-09-20 洗浄方法
CA002144063A CA2144063C (fr) 1992-09-25 1993-09-20 Methode de nettoyage
AU48184/93A AU4818493A (en) 1992-09-25 1993-09-20 Cleaning process
EP93920792A EP0662121B1 (fr) 1992-09-25 1993-09-20 Procede de nettoyage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92202964 1992-09-25
EP92202964.0 1992-09-25

Publications (1)

Publication Number Publication Date
WO1994007989A1 true WO1994007989A1 (fr) 1994-04-14

Family

ID=8210941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002559 WO1994007989A1 (fr) 1992-09-25 1993-09-20 Procede de nettoyage

Country Status (7)

Country Link
EP (1) EP0662121B1 (fr)
JP (1) JPH08502087A (fr)
AU (1) AU4818493A (fr)
CA (1) CA2144063C (fr)
DE (1) DE69310526T2 (fr)
ES (1) ES2102677T3 (fr)
WO (1) WO1994007989A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0806472A1 (fr) * 1996-05-09 1997-11-12 CHEMISCHE FABRIK DR. WEIGERT (GMBH & CO.) Kit de nettoyage pour la vaiselle et procédé d'usage
WO2000029535A1 (fr) * 1998-11-16 2000-05-25 The Procter & Gamble Company Produit de nettoyage a ondes sonores ou ultrasonores
WO2000029540A1 (fr) * 1998-11-16 2000-05-25 The Procter & Gamble Company Compositions de nettoyage a ultrasons

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3119809B2 (ja) * 1996-01-26 2000-12-25 住友電気工業株式会社 タイヤ空気圧低下検出方法および装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258068A2 (fr) * 1986-08-29 1988-03-02 Novo Nordisk A/S Additif enzymatique pour détergent
EP0258816A2 (fr) * 1986-09-04 1988-03-09 Henkel Kommanditgesellschaft auf Aktien Procédé pour le lavage et le nettoyage de matières textiles
WO1988009367A1 (fr) * 1987-05-29 1988-12-01 Genencor, Inc. Compositions de nettoyage a base de cutinase
EP0320852A2 (fr) * 1987-12-12 1989-06-21 Nikko Bio Technica Co., Ltd. Procédé de lavage de dispositif de superprécision
EP0399681A2 (fr) * 1989-05-15 1990-11-28 The Clorox Company Système surfactifs de lipase et cutinase et méthode utile au lavage
EP0407225A1 (fr) * 1989-07-07 1991-01-09 Unilever Plc Enzymes et compositions détergentes enzymatiques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258068A2 (fr) * 1986-08-29 1988-03-02 Novo Nordisk A/S Additif enzymatique pour détergent
EP0258816A2 (fr) * 1986-09-04 1988-03-09 Henkel Kommanditgesellschaft auf Aktien Procédé pour le lavage et le nettoyage de matières textiles
WO1988009367A1 (fr) * 1987-05-29 1988-12-01 Genencor, Inc. Compositions de nettoyage a base de cutinase
EP0320852A2 (fr) * 1987-12-12 1989-06-21 Nikko Bio Technica Co., Ltd. Procédé de lavage de dispositif de superprécision
EP0399681A2 (fr) * 1989-05-15 1990-11-28 The Clorox Company Système surfactifs de lipase et cutinase et méthode utile au lavage
EP0407225A1 (fr) * 1989-07-07 1991-01-09 Unilever Plc Enzymes et compositions détergentes enzymatiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H. MALMOS: "Enzymes for Detergents", CHEMISTRY AND INDUSTRY. CHEMISTRY AND INDUSTRY REVIEW, 1990, LETCHWORTH GB, pages 183 - 186 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0806472A1 (fr) * 1996-05-09 1997-11-12 CHEMISCHE FABRIK DR. WEIGERT (GMBH & CO.) Kit de nettoyage pour la vaiselle et procédé d'usage
WO2000029535A1 (fr) * 1998-11-16 2000-05-25 The Procter & Gamble Company Produit de nettoyage a ondes sonores ou ultrasonores
WO2000029540A1 (fr) * 1998-11-16 2000-05-25 The Procter & Gamble Company Compositions de nettoyage a ultrasons
US6624133B1 (en) 1998-11-16 2003-09-23 The Procter & Gamble Company Cleaning product which uses sonic or ultrasonic waves
KR100442906B1 (ko) * 1998-11-16 2004-08-02 더 프록터 앤드 갬블 캄파니 초음파 세정 조성물

Also Published As

Publication number Publication date
ES2102677T3 (es) 1997-08-01
EP0662121B1 (fr) 1997-05-07
EP0662121A1 (fr) 1995-07-12
CA2144063A1 (fr) 1994-04-14
DE69310526T2 (de) 1997-09-11
CA2144063C (fr) 2003-12-09
AU4818493A (en) 1994-04-26
JPH08502087A (ja) 1996-03-05
DE69310526D1 (de) 1997-06-12

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