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
  • C11D3/38636—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
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
• • 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
  • C11D17/0047—Detergents in the form of bars or tablets
  • C11D17/0065—Solid detergents containing builders
  • C11D17/0069—Laundry bars
• • 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
  • C11D17/0047—Detergents in the form of bars or tablets
  • C11D17/0065—Solid detergents containing builders
  • C11D17/0073—Tablets
• • 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
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase

Definitions

• the present invention relates to detergent compositions comprising retrograded starch degrading enzyme.
• Performance of a detergent product is judged by a number of factors, including the ability to remove soils. Therefore, detergent components such as surfactants, bleaching agents and enzymes, have been incorporated in detergents.
• detergent components such as surfactants, bleaching agents and enzymes.
• One of such specific example is the use of proteases, lipases, amylases and/or cellulases.
• Proteases are commonly used enzymes in cleaning applications. Proteases are known for their ability to hydrolyse other proteins. This ability has been taken advantage of through the incorporation of naturally occurring or engineered protease enzymes in laundry detergent compositions. The inclusion of lipolytic enzymes in detergent compositions for improved cleaning performance is known, e.g. enhancement of removal of triglycerides containing soils and stains from the fabrics.
• the activity of cellulase is one in which cellulosic fibres or substrates are attacked by the cellulase and is depending on the particular function of the cellulase, which can be endo- or exo- cellulase, and of the respective hemicellulases.
• the cellulose structures are depolymerized or cleaved into smaller and thereby more soluble or dispersible fractions. This activity in particular on fabrics provides a cleaning, rejuvenation, softening and generally improved handfeel characteristics to the fabric structure.
• Amylase enzymes have long been recognised in detergent compositions to provide the removal of starchy food residues or starchy films from dishware or hard surfaces or to provide cleaning performance on starchy soils as well as other soils typically encountered in laundry and dishwashing applications. Indeed, starchy materials such as amylose and amylopectin, constitute one of the major components of the soils /stains encountered in laundry, dishwashing or hard surfaces cleaning operations.
• the textile industry uses starchy materials in their textile finishing processes. Therefore, amylase enzymes have been since a long time incorporated into the detergent products for the removal of starch-containing stains. However, it has been surprisingly found that such commonly used detergent amylases could not hydrolyse retrograded starch.
• retrogradation is a term given to the changes which occur spontaneously in a starch paste, or gel on ageing. It arises from the inherent tendency of starch molecules to bind to one another and which leads to an increase in crystallinity. Solutions of low concentration become increasingly cloudy due to the progressive association of starch molecules into larger particles. Spontaneous precipitation takes place and the precipitated starch appears to be reverting to its original condition of cold-water insolubility. Pastes of higher concentration on cooling set to a gel, which on ageing becomes steadily firmer due to the increasing association of the starch molecules. This arises because of the strong tendency for hydrogen bond formation between hydroxy groups on adjacent starch molecules.
• starch The changes taking place during retrogradation are of considerable importance in the industrial uses of starch. It is believed to be an important factor in the staling of bread and in the textural changes of other starch-containing foods, e.g. canned soups, peas, meat preparations, etc.
• Starch and retrograded starch are also found in the textile, paper and adhesives industries. Indeed, fabrics are sized with starch in the textile process. Depending on the sizing process, retrograded starch can be formed on the fabrics and might not be removed in the ulterior desizing processes. Moreover, the majority of the stains/soils found on fabrics contain starch which upon ageing in for e.g., the laundry basket will retrograde to such associated starchy network.
• retrograded starch containing materials are found later onto the fabric to be cleaned. Furthermore, it has been surprisingly found that such retrograded starch entraps further dirt and, when found on a fabric surface, leads to a dingy appearance of the surface to be cleaned.
• retrograded starch shows an increased resistance to hydrolysis by amylolytic enzymes, is only slightly soluble at ordinary temperatures and redispersed only with difficulty, especially if the retrograded starch has dried first and it further demonstrates a progressive increase in gel firmness. Indeed, it has been found that retrograded starch forms very stable structures and only melts at very high temperature such as 150°C for amylose, 60°C for amylopectin or 120°C for the complex amylose-lipid. The level and timing of retrogradation depends upon the starch type: it can vary from 10% to 90% of the starch content. It has been found that current detergent amylases have very little to no effect on retrograded starch.
• the above objective has been met by formulating a detergent composition comprising an enzyme highly efficient on retrograded starch.
• Such enzymes are characterised by Retrograded Starch Index (ReSI) below 4%, preferably below 3%.
• the detergent compositions of the present invention will comprise a combination of several retrograded starch degrading enzymes.
• the detergent compositions of the present invention will further comprise a detergent ingredient selected from another detergent enzyme such as a protease, a lipase and/or a conventional amylase, starch debranching enzyme or pullulanase type II, a nonionic surfactant, a bleaching agent and/or an anti-redeposition agent.
• a detergent ingredient selected from another detergent enzyme such as a protease, a lipase and/or a conventional amylase, starch debranching enzyme or pullulanase type II, a nonionic surfactant, a bleaching agent and/or an anti-redeposition agent.
• EP 368 341 describes detergent compositions comprising a surfactant and at least one starch debranching enzyme selected from the group consisting of pullulanase, isopullulanase and isoamylase and preferably with an ⁇ -amylase for improved starchy dirt detergent.
• GB 2 228 945 discloses an automatic dishwashing composition comprising an enzyme capable of breaking ⁇ -1 ,6- glucosidic linkages.
• WO98/26078 is directed to H mutant ⁇ -amylase enzymes whit improved stability.
• EP 450 627 describes a novel detergent composition containing an alkaline pullulanase with excellent detergency against starchy soils.
• W094/19468 relates to a DNA fragment containing a gene for alkaline pullulanase useful as a component of detergents.
• US 5,665,585 is directed to an amino acid and DNA sequence of a unique glucoamylase P that has a high debranching activity, a Trichoderma host cell transformed with such sequences, the expression of such recombinant glucoamylase P and the industrial uses in particular the alcohol fermentation, for the recombinant enzymes and host transformed therewith.
• US 3,640,877 describes detergent preparation containing a system of glucose and glucose oxidase or starch, amyloglucosidase and glucose oxidase as precursor of hydrogen peroxide and a hydroxylamine which stabilises the hydrogen peroxide formed during the use of the detergent.
• WO95/29996 discloses a novel glucose oxidase, a process for its production and its use in bleaching and detergent compositions as well as its use as a dough strengthener. Said enzyme has many applications in the personal care area and the baking industry, preferably in combination with another enzyme selected from amyloglucosidase, lactoperoxidase, ⁇ -amylase or a maltogenic exo-amylase.
• the present invention relates to laundry detergent compositions comprising a retrograded starch degrading enzyme characterised by a Retrograded Starch Index (ReSI) below 4%, preferably below 3%.
• a retrograded Starch Index (ReSI) below 4%, preferably below 3%.
• Such compositions provide excellent removal of starch-containing stains and soils, and therefore excellent whiteness maintenance and dingy cleaning.
• the essential component of the detergent compositions of the present invention is an enzyme active on ⁇ -polysaccharides and highly efficient in degrading retrograded starch materials (herein after referred to as "retrograded starch degrading enzymes").
• Such enzymes are characterised by a Retrograded Starch Index (ReSI) below 4%, preferably below 3%. Indeed, it has been found that enzymes fulfilling these criteria are highly efficient in degrading retrograded starch found on fabric and therefore provide excellent dingy cleaning. It has been shown that repeatedly laundered fabrics, especially white fabrics, build up a low intense gray, yellow colour.
• the selected enzymes of the present invention are capable or hydrolysing such layer of retrograded starch and therefore provide excellent dingy cleaning.
• the present invention is specifically designed to select enzymes having a high dingy cleaning efficiency and which are specifically selected by the protocol described below, where carbon black is used to simulate the dingy appearance.
• Retrograded starch index (ReSI) is defined as follows :
• Fabrics are loaded with retrograded starch and with carbon black. Retrograded starch is deposited onto the fabric and carbon black is entrapped within the starch structure and is used as a color indicator of the presence of retrograded starch. Before and after the enzyme treatment, the remaining retrograded starch on the test fabric is measured by a color measurement by spectrometry. The measured % color strength of the carbon black remaining on the fabric is proportional to the retrograded starch which has not been hydrolysed and removed from the fabric by the tested enzyme. A lower % of color strength of the carbon black indicates a better removal of the carbon black, which reflects a better removal of retrograded starch. Therefore a lower % of color strength is indicative of a higher performant enzyme.
• Retrograded starch index (ReSI) is measured as follows :
• test fabrics are placed in the Launder-o-meter (4 pieces of fabric per Lauder-o-meter) in 400ml Sodium acetate buffer at a temperature of 40°C and at the optimum pH of the tested enzyme for 1 hour, and tumble dry fabrics.
• the color strength of the fabrics is measured with Spectraflash Datacolor International.
• the optimal pH of the tested enzyme is to be found in the technical data sheet provided with the commercial sample of the enzyme and/or can be derived from the curve of % activity versus pH.
• the % colour strength calculation is based on the integration of the K/S curve over the visible spectrum, wherein the K/S is a ratio of the Kubelka-Munk constants K and S (Datamaster software program from Datacolor International).
• the ratio of the surface underneath the K/S curve of the fabrics before and after the enzyme treatment gives the colour strength.
• a color strength below 4%, preferably 3% is indicative of the extra whiteness and dingy clean up performance.
• the retrograded starch degrading enzymes are generally comprised in the detergent compositions of the present invention at a level of from 0.0002% to 10%, preferably 0.001 % to 2 %, more preferably 0.001 % to 1 % pure enzyme by weight of the total detergent composition.
• Preferred retrograded starch degrading enzymes for specific applications are alkaline retrograded starch degrading enzymes, ie enzymes having an enzymatic activity of at least 10%, preferably at least 25%, more preferably at least 40% of their maximum activity at a pH ranging from 7 to 12, preferably 10.5. More preferred retrograded starch degrading enzymes are enzymes having their maximum activity at a pH ranging from 7 to 12, preferably 10.5.
• Suitable retrograded starch degrading enzymes having a ReSI below 4% for the purpose of the present invention can be selected from the following enzymes classes (IUPAC Classification) : amyloglucosidase EC 3.2.1.3, ⁇ -amylase EC 3.2.1.1 , beta-amylases EC 3.2.1.2, isoamylase EC 3.2.1.68, pullulanase type I EC 3.2.1.41 , isopullulanase EC 3.2.1.57, neopullulanase EC 3.2.1.135, pullulanase type II, dextrin dextranase EC 2.4.1.24, cyclodextrin glycosyltransferase EC 2.4.1.19 and maltogenic alpha-amylase EC 3.2.1.133.
• the detergent compositions will comprise a combination of several retrograded starch degrading enzymes.
• amyl glucpsidase EC 3.2.1.3 is a glucan 1 ,4- ⁇ -glucosidase; is also referred to as "glucoamylase, ⁇ -amylase, lysosomal ⁇ -glucosidase, acid maltase or exo- 1 ,4- ⁇ -glucosidase" and its systematic name is 1 ,4- ⁇ -D-glucan glucohydrolase.
• Amyloglucosidases hydrolyse both ⁇ -1 ,4 and ⁇ -1 ,6 linkages in polysaccharides such as starch, liberating glucose units from non-reducing ends of polysaccharides. These two activities are distinct.
• amyloglucosidases liberate ⁇ -D-glucose units from terminal non-reducing ends of a glucose polymer such as starch. They differ considerably from starch debranching enzymes in their ability to hydrolyse ⁇ -1 ,6 glucosidic bonds.
• Alpha-amyjase EC 3.2.1.1
• Beta amyjase, EC 3.2.1.2, is a 1 ,4- ⁇ -D-glucan maltohydrolase, provides exohydrolysis of 1 ,4- ⁇ -D-glucosidic linkages in polysaccharides to remove successive maltose units from non-reducing ends of the chain.
• the starch debranching enzymes group commonly encompasses the pullulanase type I, the isopullulanase and isoamylase enzymes
• Pujlulanase .type J enzymes are classified under the IUPAC classification EC 3.2.1.41 and the systematic name ⁇ -Dextrin 6-glucanohydrolase.
• Pullulanase enzymes hydrolyses the 1 ,6- ⁇ -D-glucosidic linkages in pullulan, amylopectin and glycogens and in the ⁇ - and ⁇ -amylase limit dextrins of amylopectin and glycogen as well as against branched oligosaccharides produced by their partial decomposition. Because of this characteristic, pullulanase is called a "debranching enzyme".
• pullulanase is an enzyme which breaks only ⁇ - 1 ,6-glycosidic linkage of pullulan and finally produces maltotriose.
• Jsppullulanase enzymes are classified under the IUPAC classification EC 3.2.1.57 and the systematic name Pullulan 4-glucanohydrolase.
• the isopullulanase enzymes hydrolyse pullulan to isopanose (6- ⁇ -maltosylglucose).
• Isoamylase enzymes have the ability to debranch glycogen. These are classified under the IUPAC classification EC 3.2.1.68 and the systematic name glycogen 6- glucanohydrolase.
• the isoamylase enzymes hydrolyse the 1 ,6- ⁇ -D-glucosidic branch linkages in glycogen, amylopectin and their ⁇ -limit dextrins.
• the isoamylases are distinguished from the pullulanase enzyme by their inability to attack pullulan, by limited action on ⁇ -limit dextrins and by their complete action on glycogen.
• Neppujlulanase enzymes are defined as enzymes that degrade pullulan to form panose and these are classified under the IUPAC classification EC 3.2.1.135.
• Neopullulanase enzyme which is pullulan 4-D-glucanohydrolase, have an ability to cleave both 1 ,4- and 1 ,6- glucosidic bonds found in common starch and carbohydrate type stains or soils. For example, this enzyme hydrolyzes pullulan to panose (6-alpha-D-glucosylmaltose).
• the neopullulanse enzyme can catalyze four types of reactions including the hydrolysis of alpha-(1 - 4)- glucosidic bond, the hydrolysis of alpha-(1 - ⁇ 6)-glucosidic bond, the transglycosylation to form alpha-(1 - 4)-glucosidic bond, and the transglycosylation to form alpha-(1 ->6)-glucosidic bond.
• other known enzymes catalyse only one of these reactions or it two reactions are catalysed, the second is weak.
• the four types of reactions are catalyzed by the same mechanism.
• Pujlula ⁇ ase .type . l enzymes are defined as amylopullulanases and hydrolyzes randomly the ⁇ ,1-4 linkages in addition to the branching points ( ⁇ -1 ,6-linkages) in polysaccharides and dextrins, in contrast to pullulanase type I enzymes which only hydrolyse ⁇ ,1-6 linkages in branched polysaccharides.
• a further suitable enzyme from the amylase class is the dextrin dextranase.
• Dextrin dextranase (EC 2.4.1.2) is an enzyme that produces Dextran and low mulecular weight oligosaccharides from starch.
• Cycjomaltpdextrin. glucanptransferase EC 2.4.1.19, is an enzyme that cyclizes part of a 1 ,4- ⁇ -D-glucan chain by formation of a 1 ,4- ⁇ -D-glucosidic bond and has the systematic name of 1 ,4- ⁇ -D-glucan 4- ⁇ -D-(1 ,4- ⁇ -D-glucano)-transferase (cyclizing).
• Suitable maltogenic alpha-amylases are the amylase cloned from Bacillus as described in EP 120 693 commercailly available under the tradename Novamyl from Novo Nordisk A/S; the variants of maltogenic alpha-amylase having CGT-ase activity and variants of CGT-ase having maltogenic alpha-amylase activity, as well as constructed hybrid enzymes described in WO99/43793 and the maltogenic alpha-amylases variants with improved properties (altered physicochemical properties., e.g.
• a specific enzyme that fulfils the ReSI criteria of the present invention is for example the amyloglucosidase sold by Novo Nordisk A/S under the tradename AMG.
• the detergent compositions of the present invention might further comprise one or more starch-binding domain.
• starch binding domain might be added in the detergent compositions of the present invention, as such, or might be part of a chimeric retrograded starch degrading enzyme hybrid.
• the retrograded starch degrading enzymes of the present invention will preferably have or will be added a Starch Binding Domain (SBD).
• SBD Starch Binding Domain
• enzymes such as amylases, cellulases and xylanases have a modular structure consiting of a catalyst domain and at least one non- catalytic domain whose function is generally described as that of a polysaccharide-binding domain (PBD), starch-binding domain (SBD), cellulose- binding domain (CBD) and xylan-binding domain.
• PBD polysaccharide-binding domain
• SBD starch-binding domain
• CBD cellulose- binding domain
• xylan-binding domain The function of these binding domains is to bind selectively to the substrate of the enzyme, and in particular, the primary function of SBD is to bind to starch.
• the detergent compositions of the present invention comprising one or more SBD and/or wherein the retrograded starch degrading enzymes comprise such a SBD will provide a more effective starch-containing soils/stains removal. It has further been found that such enzymes can be formulated in a more cost-effective manner. Without wishing to be bound by theory, it is believed that such retrograded starch degrading enzymes will be more effectively directed specifically to their substrate from the wash solutions and so have improved deposition onto the starch containing stains/soils for improved and/or new performance. Moreover, it is believed that the binding of the SBD will disrupt the surface of starch resulting in a higher hydrolytic rate.
• Suitable SBD for use in the present invention are the SBDs comprised in the glucoamylase from Aspergillus niger ( Sigma) and in the ⁇ -galactosidase from A. awamori.
• the recovery and fusion of SBDs can be achieved as described in Ford, C. et al., J. Cell. Biochem. (Suppl.) 14D:30 (1990) and in Chen, L. et al., Abst. Annu. Meet. Am. Soc. Microbiol. 90:269 (1990).
• the detergent compositions of the invention must contain at least one additional detergent component.
• additional detergent component and levels of incorporation thereof will depend on the physical form of the composition, and the nature of the cleaning operation for which it is to be used.
• the detergent compositions of the present invention will preferably comprise a further conventional amylase, conventional starch debranching enzyme, conventional pullulanase type II, protease or a lipase; a nonionic surfactant, a bleaching agent and/or, a anti-redeposition agent.
• the present invention relates to a laundry and/or fabric care composition comprising a retrograded starch degrading enzyme (Examples 1-16). It has been found that the selected enzymes of the present invention demonstrates as well superior starch containing stains/ soils removal when included into a dishwashing or hard surface cleaning application. Therefore, in a second embodiment, the present invention relates to dishwashing or household cleaning compositions (Examples 17-23).
• compositions of the invention may for example, be formulated as hand and machine dishwashing compositions, hand and machine laundry detergent compositions including laundry additive compositions and compositions suitable for use in the soaking and/or pretreatment of stained fabrics, rinse added fabric softener compositions, and compositions for use in general household hard surface cleaning operations.
• hand and machine laundry detergent compositions including laundry additive compositions and compositions suitable for use in the soaking and/or pretreatment of stained fabrics, rinse added fabric softener compositions, and compositions for use in general household hard surface cleaning operations.
• the compositions of the invention preferably contain a surfactant and preferably other detergent compounds selected from organic polymeric compounds, suds enhancing agents, group II metal ions, solvents, hydrotropes and additional enzymes.
• compositions suitable for use in a laundry machine washing method preferably contain both a surfactant and a builder compound and additionally one or more detergent components preferably selected from organic polymeric compounds, bleaching agents, additional enzymes, suds suppressors, dispersants, lime-soap dispersants, soil suspension and anti-redeposition agents and corrosion inhibitors.
• Laundry compositions can also contain softening agents, as additional detergent components.
• Such compositions containing an amyloglucosidase provide starch- containing stain removal, whiteness maintenance and dingy cleaning when formulated as laundry detergent compositions.
• compositions of the invention can also be used as detergent additive products. Such additive products are intended to supplement or boost the performance of conventional detergent compositions.
• the detergent compositions according to the invention can be liquid, paste, gels, bars, tablets, spray, foam, powder or granular. Granular compositions can also be in "compact” form and the liquid compositions can also be in a "concentrated” form. If needed the density of the laundry detergent compositions herein ranges from 400 to 1200 g/litre, preferably 500 to 950 g/litre of composition measured at 20°C.
• the "compact" form of the compositions herein is best reflected by density and, in terms of composition, by the amount of inorganic filler salt; inorganic filler salts are conventional ingredients of detergent compositions in powder form; in conventional detergent compositions, the filler salts are present in substantial amounts, typically 17-35% by weight of the total composition.
• the filler salt is present in amounts not exceeding 15% of the total composition, preferably not exceeding 10%, most preferably not exceeding 5% by weight of the composition.
• the inorganic filler salts such as meant in the present compositions are selected from the alkali and alkaline-earth-metal salts of sulphates and chlorides.
• a preferred filler salt is sodium sulphate.
• Liquid detergent compositions according to the present invention can also be in a "concentrated form", in such case, the liquid detergent compositions according the present invention will contain a lower amount of water, compared to conventional liquid detergents. Typically the water content of the concentrated liquid detergent is preferably less than 40%, more preferably less than 30%, most preferably less than 20% by weight of the detergent composition.
• Suitable detergent compounds for use herein are selected from the group consisting of the below described compounds.
• the detergent compositions according to the present invention generally comprise a surfactant system wherein the surfactant can be selected from nonionic and/or anionic and/or cationic and/or ampholytic and/or zwitterionic and/or semi-polar surfactants.
• the detergent compositions of the present invention will comprise a nonionic surfactant, preferably a nonionic surfactant based upon polyoxyethylene condensates with alcohols.
• a nonionic surfactant based upon polyoxyethylene condensates with alcohols.
• the detergent compositions of the present invention further comprising a nonionic surfactant provide improved removal of starch from fabrics, dishware and other hard surfaces.
• the nonionic surfactant adsorbs onto the granular surface of the starch thereby disrupting the starch structure and influencing and preventing the retrogradation process of the starch. Such disruption of the structure increases the enzyme accessibility to its substrate.
• nonionic surfactants can be used also in a pre-treatment process and therefore can reduce the retrogradation process of starch.
• the starch-containing stains / soils is more easily hydrolysed by the enzyme and a synergistic breakdown of the starch soil by the retrograded starch degrading enzyme and the non-ionic surfactant occurs.
• the surfactant is typically present at a level of from 0.1 % to 60% by weight. More preferred levels of incorporation are 1 % to 35% by weight, most preferably from 1 % to 30% by weight of detergent compositions in accord with the invention.
• the surfactant is preferably formulated to be compatible with enzyme components present in the composition.
• the surfactant is most preferably formulated such that it promotes, or at least does not degrade, the stability of any enzyme in these compositions.
• Nonionic surfactants Polyethylene, polypropylene, and polybutylene oxide condensates of alkyl phenols are suitable for use as the nonionic surfactant of the surfactant systems of the present invention, with the polyethylene oxide condensates being preferred. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 14 carbon atoms, preferably from about 8 to about 14 carbon atoms, in either a straight-chain or branched-chain configuration with the alkylene oxide. In a preferred embodiment, the ethylene oxide is present in an amount equal to from about 2 to about 25 moles, more preferably from about 3 to about 15 moles, of ethylene oxide per mole of alkyl phenol.
• nonionic surfactants of this type include lgepaP ⁇ M c ⁇ -630, marketed by the GAF Corporation; and TritonTM X-45, X-114, X-100 and X-102, all marketed by the Rohm & Haas Company. These surfactants are commonly referred to as alkylphenol alkoxylates (e.g., alkyl phenol ethoxylates).
• the condensation products of primary and secondary aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide are suitable for use as the nonionic surfactant of the nonionic surfactant systems of the present invention.
• the alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from about 8 to about 22 carbon atoms.
• About 2 to about 7 moles of ethylene oxide and most preferably from 2 to 5 moles of ethylene oxide per mole of alcohol are present in said condensation products.
• nonionic surfactants of this type include TergitolT 15-S-9 (the condensation product of C-
• nonionic surfactant of the surfactant systems of the present invention are the alkylpolysaccharides disclosed in U.S. Patent 4,565,647, Llenado, issued January 21 , 1986, having a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably from about 10 to about 16 carbon atoms and a polysaccharide, e.g. a polyglycoside, hydrophilic group containing from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7 saccharide units.
• a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably from about 10 to about 16 carbon atoms and a polysaccharide, e.g. a polyglycoside, hydrophilic group containing from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7 saccharide units.
• Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyl moieties can be substituted for the glucosyl moieties (optionally the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside).
• the intersaccharide bonds can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6- positions on the preceding saccharide units.
• the preferred alkylpolyglycosides have the formula
• R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14, carbon atoms; n is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and x is from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7.
• the glycosyl is preferably derived from glucose. To prepare these compounds, the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1 -position). The additional glycosyl units can then be attached between their 1 -position and the preceding glycosyl units 2-, 3-, 4- and/or 6- position, preferably predominately the 2-position.
• the condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol are also suitable for use as the additional nonionic surfactant systems of the present invention.
• the hydrophobic portion of these compounds will preferably have a molecular weight of from about 1500 to about 1800 and will exhibit water insolubility.
• the addition of polyoxyethylene moieties to this hydrophobic portion tends to increase the water solubility of the molecule as a whole, and the liquid character of the product is retained up to the point where the polyoxyethylene content is about 50% of the total weight of the condensation product, which corresponds to condensation with up to about 40 moles of ethylene oxide.
• Examples of compounds of this type include certain of the commercially-available PlurafacTM LF404 and PluronicTM surfactants, marketed by BASF.
• nonionic surfactants are the condensation products of ethylene oxide with the product resulting from the reaction of propylene oxide and ethylenediamine.
• the hydrophobic moiety of these products consists of the reaction product of ethylenediamine and excess propylene oxide, and generally has a molecular weight of from about 2500 to about 3000.
• This hydrophobic moiety is condensed with ethylene oxide to the extent that the condensation product contains from about 40% to about 80% by weight of polyoxyethylene and has a molecular weight of from about 5,000 to about 11 ,000.
• Examples of this type of nonionic surfactant include certain of the commercially available TetronicTM compounds, marketed by BASF.
• Preferred for use as the nonionic surfactant of the surfactant systems of the present invention are polyethylene oxide condensates of alkyl phenols, condensation products of primary and secondary aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide, alkylpolysaccharides, and mixtures thereof. Most preferred are C8-C14 alkyl phenol ethoxylates having from 3 to 15 ethoxy groups and C ⁇ -C-j ⁇ alcohol ethoxylates (preferably C ⁇ o a 9-) having from 2 to 10 ethoxy groups, and mixtures thereof.
• Highly preferred nonionic surfactants are polyhydroxy fatty acid amide surfactants of the formula.
• R1 is H, or R ⁇ is C ⁇ _4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl or a mixture thereof
• R2 is 05.31 hydrocarbyl
• Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof.
• R ⁇ is methyl
• R ⁇ is a straight C-i -j_-
• Z is derived from a reducing sugar such as glucose, fructose, maltose, lactose, in a reductive amination reaction.
• Anionic surfactants Suitable anionic surfactants to be used are linear alkyl benzene sulfonate, alkyl ester sulfonate surfactants including linear esters of C ⁇ -
• C20 carboxylic acids i.e., fatty acids
• gaseous SO3 gaseous SO3
• Suitable starting materials would include natural fatty substances as derived from tallow, palm oil, etc.
• the preferred alkyl ester sulfonate surfactant, especially for laundry applications, comprise alkyl ester sulfonate surfactants of the structural formula :
• R ⁇ is a C8-C20 hydrocarbyl, preferably an alkyl, or combination thereof
• R 4 is a C-i-C ⁇ hydrocarbyl, preferably an alkyl, or combination thereof, and M is a cation which forms a water soluble salt with the alkyl ester sulfonate.
• Suitable salt-forming cations include metals such as sodium, potassium, and lithium, and substituted or unsubstituted ammonium cations, such as monoethanolamine, diethanolamine, and triethanolamine.
• R3 is C10-C16 a ⁇ k ⁇
• R 4 is methyl, ethyl or isopropyl.
• the methyl ester sulfonates wherein R3 is C-
• alkyl sulfate surfactants which are water soluble salts or acids of the formula ROSO3M wherein R preferably is a C10-C24 hydrocarbyl, preferably an alkyl or hydroxyalkyl having a C10-C20 a ' component, more preferably a C12-C18 a, or hydroxyalkyl, and M is H or a cation, e.g., an alkali metal cation (e.g. sodium, potassium, lithium), or ammonium or substituted ammonium (e.g.
• R preferably is a C10-C24 hydrocarbyl, preferably an alkyl or hydroxyalkyl having a C10-C20 a ' component, more preferably a C12-C18 a, or hydroxyalkyl
• M is H or a cation, e.g., an alkali metal cation (e.g. sodium, potassium, lithium), or ammonium or substituted ammonium (e
• alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and the like.
• alkyl chains of C12-C16 a ⁇ "e preferred for lower wash temperatures (e.g. below about 50°C) and C-
• anionic surfactants useful for detersive purposes can also be included in the detergent compositions of the present invention. These can include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of soap, C8-C22 primary of secondary alkanesulfonates, C8-C24 olefinsulfonates, sulfonated polycarboxylic acids prepared by sulfonation of the pyrolyzed product of alkaline earth metal citrates, e.g., as described in British patent specification No.
• salts including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts
• C8-C22 primary of secondary alkanesulfonates C8-C24 olefinsulfonates
• sulfonated polycarboxylic acids prepared by sulfonation of the pyrolyzed product of
• alkylpolyglycolethersulfat.es (containing up to 10 moles of ethylene oxide); alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, paraffin sulfonates, alkyl phosphates, isethionates such as the acyl isethionates, N-acyl taurates, alkyl succinamates and sulfosuccinates, monoesters of sulfosuccinates (especially saturated and unsaturated C12-C-I8 monoesters) and diesters of sulfosuccinates (especially saturated and unsaturated C6-C12 diesters), acyl sarcosinates, sulfates of alkylpolysaccharides such as the
• laundry detergent compositions of the present invention typically comprise from about 1 % to about 40%, preferably from about 3% to about 20% by weight of such anionic surfactants.
• alkyl alkoxylated sulfate surfactants hereof are water soluble salts or acids of the formula RO(A) m SO3M wherein R is an unsubstituted C10-C24 alkyl or hydroxyalkyl group having a C10-C24 alkyl component, preferably a C12-C20 alk y' or hydroxyalkyl, more preferably C12- C-
• R is an unsubstituted C10-C24 alkyl or hydroxyalkyl group having a C10-C24 alkyl component, preferably a
• Alkyl ethoxylated sulfates as well as alkyl propoxylated sulfates are contemplated herein.
• Specific examples of substituted ammonium cations include methyl-, dimethyl, trimethyl-ammonium cations and quaternary ammonium cations such as tetramethyl-ammonium and dimethyl piperdinium cations and those derived from alkylamines such as ethylamine, diethylamine, triethylamine, mixtures thereof, and the like.
• Exemplary surfactants are C12-C18 alkyl polyethoxylate (1.0) sulfate (C ⁇
• the detergent compositions of the present invention may also contain cationic, ampholytic, zwitterionic, and semi-polar surfactants, as well as the nonionic and/or anionic surfactants other than those already described herein.
• Cationic surfactants suitable for use in the detergent compositions of the present invention are those having one long-chain hydrocarbyl group.
• Examples of such cationic surfactants include the ammonium surfactants such as alkyltrimethylammonium halogenides, and those surfactants having the formula :
• R 2 is an alkyl or alkyl benzyl group having from about 8 to about 18 carbon atoms in the alkyl chain
• each R3 is selected from the group consisting of -CH 2 CH 2 -, -CH 2 CH(CH3)-, -CH2CH(CH 2 OH)-, -CH2CH2CH2-, and mixtures thereof
• each R 4 is selected from the group consisting of C1-C4 alkyl, C1-C4 hydroxyalkyl, benzyl ring structures formed by joining the two R 4 groups, - CH2CHOH-CHOHCOR6CHOHCH2OH wherein R6 is any hexose or hexose polymer having a molecular weight less than about 1000, and hydrogen when y is not 0
• R ⁇ is the same as R 4 or is an alkyl chain wherein the total number of carbon atoms of R2 plus
• Quaternary ammonium surfactant suitable for the present invention has the formula (I):
• R1 is a short chainlength alkyl (C6-C10) or alkylamidoalkyl of the formula (II) :
• y is 2-4, preferably 3. whereby R2 is H or a C1-C3 alkyl, whereby x is 0-4, preferably 0-2, most preferably 0, whereby R3, R4 and R5 are either the same or different and can be either a short chain alkyl (C1-C3) or alkoxylated alkyl of the formula III,
• X" is a counterion, preferably a halide, e.g. chloride or methylsulfate.
• R6 is C-i-C ⁇ and z is 1 or 2.
• Preferred quat ammonium surfactants are those as defined in formula I whereby R-
• Highly preferred cationic surfactants are the water-soluble quaternary ammonium compounds useful in the present composition having the formula : R 1 R 2 R3R4N + X- (i)
• is Cs-C-
• each of R2, R3 and R4 is independently C1-C4 alkyl, C1-C4 hydroxy alkyl, benzyl, and -(C2H4fj) ⁇ H where x has a value from 2 to 5, and X is an anion.
• R2, R3 or R4 should be benzyl.
• is C12-C15 particularly where the alkyl group is a mixture of chain lengths derived from coconut or palm kernel fat or is derived synthetically by olefin build up or OXO alcohols synthesis.
• R2R3 and R4 are methyl and hydroxyethyl groups and the anion X may be selected from halide, methosulphate, acetate and phosphate ions.
• suitable quaternary ammonium compounds of formulae (i) for use herein are : coconut trimethyl ammonium chloride or bromide; coconut methyl di hydroxyethyl ammonium chloride or bromide; decyl triethyl ammonium chloride; decyl dimethyl hydroxyethyl ammonium chloride or bromide;
• CH2-CH2-O-C-C12-I4 alkyl and R2R3 4 are methyl).
• Typical cationic fabric softening components include the water-insoluble quaternary-ammonium fabric softening actives or thei corresponding amine precursor, the most commonly used having been di-long alkyl chain ammonium chloride or methyl sulfate.
• Preferred cationic softeners among these include the following: 1 ) ditallow dimethylammonium chloride (DTDMAC);
• DSOEDMAC di(stearoyloxyethyl) dimethylammonium chloride
• Biodegradable quaternary ammonium compounds have been presented as alternatives to the traditionally used di-long alkyl chain ammonium chlorides and methyl sulfates. Such quaternary ammonium compounds contain long chain alk(en)yl groups interrupted by functional groups such as carboxy groups. Said materials and fabric softening compositions containing them are disclosed in numerous publications such as EP-A-0,040,562, and EP-A-0,239,910.
• the quaternary ammonium compounds and amine precursors herein have the formula (I) or (II), below :
• Q is selected from -O-C(O)-, -C(O)-0-, -O-C(O)-0-, -NR 4 -C(O)-, -C(O)-
• R 2 is (CH 2 ) m -Q-T 4 or T ⁇ or R3;
• R3 is C1-C4 alkyl or C-1-C4 hydroxyalkyl or H;
• R 4 is H or C-1-C4 alkyl or C1-C4 hydroxyalkyl
• Ti , ⁇ 2, ⁇ 3, T 4 , T ⁇ are independently C-
• X " is a softener-compatible anion.
• softener-compatible anions include chloride or methyl sulfate.
• the alkyl, or alkenyl, chain ⁇ ⁇ 2, ⁇ 3, T 4 , T 5 must contain at least 11 carbon atoms, preferably at least 16 carbon atoms.
• the chain may be straight or branched.
• Tallow is a convenient and inexpensive source of long chain alkyl and alkenyl material.
• the compounds wherein T1 , T 2 , T 3 , T 4 , T ⁇ represents the mixture of long chain materials typical for tallow are particularly preferred.
• quaternary ammonium compounds suitable for use in the aqueous fabric softening compositions herein include : 1 ) N,N-di(tallowyl-oxy-ethyl)-N,N-dimethyl ammonium chloride; 2) N,N-di(tallowyl-oxy-ethyl)-N-methyl, N-(2-hydroxyethyI) ammonium methyl sulfate;
• the detergent compositions of the present invention typically comprise from 0.2% to about 25%, preferably from about 1% to about 8% by weight of such cationic surfactants.
• Ampholytic surfactants are also suitable for use in the detergent compositions of the present invention. These surfactants can be broadly described as aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of heterocyclic secondary and tertiary amines in which the aliphatic radical can be straight- or branched-chain.
• One of the aliphatic substituents contains at least about 8 carbon atoms, typically from about 8 to about 18 carbon atoms, and at least one contains an anionic water-solubilizing group, e.g. carboxy, sulfonate, sulfate. See U.S. Patent No. 3,929,678 to Laughlin et al., issued December 30, 1975 at column 19, lines 18-35, for examples of ampholytic surfactants.
• the detergent compositions of the present invention typically comprise from 0.2% to about 15%, preferably from about 1 % to about 10% by weight of such ampholytic surfactants.
• Zwitterionic surfactants are also suitable for use in detergent compositions. These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines, or derivatives of quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. See U.S. Patent No. 3,929,678 to Laughlin et al., issued December 30, 1975 at column 19, line 38 through column 22, line 48, for examples of zwitterionic surfactants.
• the detergent compositions of the present invention typically comprise from 0.2% to about 15%, preferably from about 1 % to about 10% by weight of such zwitterionic surfactants.
• Semi-polar nonionic surfactants are a special category of nonionic surfactants which include water-soluble amine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; water-soluble phosphine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; and water-soluble sulfoxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyl
• R3(OR 4 )xN(R5)2 wherein R3 is an alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures therof containing from about 8 to about 22 carbon atoms; R 4 is an alkylene or hydroxyalkylene group containing from about 2 to about 3 carbon atoms or mixtures thereof; x is from 0 to about 3; and each R5 is an alkyl or hydroxyalkyl group containing from about 1 to about 3 carbon atoms or a polyethylene oxide group containing from about 1 to about 3 ethylene oxide groups.
• the R5 groups can be attached to each other, e.g., through an oxygen or nitrogen atom, to form a ring structure.
• amine oxide surfactants in particular include C-
• the cleaning compositions of the present invention typically comprise from 0.2% to about 15%, preferably from about 1 % to about 10% by weight of such semi-polar nonionic surfactants.
• the detergent composition of the present invention may further comprise a cosurfactant selected from the group of primary or tertiary amines.
• Suitable primary amines for use herein include amines according to the formula R1 NH2 wherein R-
• alkyl chains may be straight or branched and may be interrupted with up to 12, preferably less than 5 ethylene oxide moieties.
• Preferred amines according to the formula herein above are n-alkyl amines.
• Suitable amines for use herein may be selected from 1 -hexylamine, 1- octylamine, 1-decylamine and laurylamine.
• Other preferred primary amines include C8-C10 oxypropylamine, octyloxypropylamine, 2-ethylhexyl- oxypropylamine, lauryl amido propylamine and amido propylamine.
• Suitable tertiary amines for use herein include tertiary amines having the formula R1 R2R3N wherein R1 and R2 are C «
• R3 is either a C6-C12, preferably Cg-C-jo alkyl chain, or R3 is R4X(CH2)n ⁇ whereby X is -O-, -C(0)NH- or -NH- R4 is a C4-C-12, n is between 1 to 5, preferably 2-3.
• R5 is H or C1-C2 alkyl and x is between 1 to 6 .
• R3 and R4 may be linear or branched ; R3 alkyl chains may be interrupted with up to 12, preferably less than 5, ethylene oxide moieties.
• Preferred tertiary amines are R1 R2R3N where R1 is a C6-C12 alkyl chain, R2 and R3 are C1-C3 alkyl or
• is C ⁇ -C ⁇ alkyl
• n is 2-4, preferably n is 3
• R2 and R3 is C1-C4
• Most preferred amines of the present invention include 1 -octylamine, 1- hexylamine, 1-decylamine, 1-dodecylamine,C8-10oxypropylamine, N coco 1-
• compositions herein are 1 -hexylamine
• the detergent compositions can in addition to the retrograded starch degrading enzyme further comprise one or more enzymes which provide cleaning performance, fabric care and/or sanitisation benefits.
• Said enzymes include enzymes selected from cellulases, hemicellulases, peroxidases, proteases, gluco-amylases, amylases, mannanases, xyloglucanases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase or mixtures thereof.
• the detergent compositions of the present invention will preferably further comprise a conventional amylase, conventional starch debranching enzyme or conventional pullulanase type II, a protease and/or a lipase.
• a conventional amylase, conventional starch debranching enzyme or conventional pullulanase type II which does not fall within the ReSI index as defined in the present invention.
• the combination of a retrograded starch degrading enzyme with such a conventional amylase, a starch debranching enzyme or pullulanase type II within the detergent compositions of the present invention provides a synergistic removal of retrograded starch.
• the detergent compositions comprising such combination of enzyme provide enhanced removal of starch-containing stains and soils and enhanced whiteness maintenance and dingy cleaning.
• the layer of retrograded starch commonly found on fabrics generally comprise a significant amount of proteins and triglyceride compounds.
• starch materials are usually associated with lipid compounds. Therefore, the detergent compositions will preferably comprise a protease and/or lipase enzyme in order to enhance the removal of such complex materials.
• the detergent compositions of the present invention will preferably further comprise a conventional amylase.
• Suitable ⁇ -amylases for the purpose of the present invention are described in the following : WO94/02597, Novo Nordisk A/S published February 03, 1994, describes cleaning compositions which incorporate mutant amylases. See also WO95/10603, Novo Nordisk A/S, published April 20, 1995.
• Other amylases known for use in cleaning compositions include both ⁇ - and ⁇ -amylases.
• ⁇ -Amylases are known in the art and include those disclosed in US Pat. no.
• amylases are stability- enhanced amylases described in W094/18314, published August 18, 1994 and WO96/05295, Genencor, published February 22, 1996 and amylase variants having additional modification in the immediate parent available from Novo Nordisk A S, disclosed in WO 95/10603, published April 95. Also suitable are amylases described in EP 277 216, WO95/26397 and WO96/23873 (all by Novo Nordisk).
• ⁇ -amylases examples are Purafect Ox Am® from Genencor and Termamyl®, Ban® ,Fungamyl® and Duramyl®, all available from Novo Nordisk A S Denmark.
• WO95/26397 describes other suitable amylases : ⁇ -amylases characterised by having a specific activity at least 25% higher than the specific activity of Termamyl® at a temperature range of 25°C to 55°C and at a pH value in the range of 8 to 10, measured by the Phadebas® ⁇ - amylase activity assay.
• the variants are those demonstrating improved thermal stability, more preferably those wherein at least one amino acid residue equivalent to F180, R181 , G182, T183, G184, or K185 has been deleted from the parent ⁇ -amylase.
• Particularly preferred are those variants having improved thermal stability which comprise the amino acid deletions R181 * + G182 * or T183 * + G184 * .
• Other amylolytic enzymes with improved properties with respect to the activity level and the combination of thermal stability and a higher activity level are described in WO95/35382.
• Further suitable amylases are the H mutant ⁇ -amylase enzymes exhibiting improved stability described in WO98/26078 by Genencor.
• amylolytic enzymes are incorporated in the detergent compositions of the present invention a level of from 0.0001 % to 2%, preferably from 0.00018% to 0.06%, more preferably from 0.00024% to 0.048% pure enzyme by weight of the composition.
• the starch debranching enzymes to can be used in the compositions of the invention can be obtained from various sources. Generally, however, it is derived from microorganisms. Preferred species of the starch debranching enzyme are pullulanase type I, isopullulanase and isoamylase. These enzymes are commercially obtainable and examples thereof include SPLENTASE ® (manufactured by Amano Pharmaceuticla Co., Ltd.) and PROMOZYME ® 200L (manufactured by Novo Industri A S), as for pullulanase; and "isoamylase” (reagent, manufactured by Seikagaku Kogyo Co., Ltd.), as for isoamylase. Such starch debranching enzymes are supplied generally in the form of granules and have an enzymatic activity of about 10 5 to 10 8 units per liter.
• the starch debranching enzyme is generally comprised in the detergent composition of the invention in an amount of 0.0001 % to 10% by weight, preferably 0.001% to 0.5% by weight.
• Pullulanase type I enzymes are classified under the IUPAC classification EC 3.2.1.41 and the systematic name ⁇ -Dextrin 6-glucanohydrolase. Pullulanase enzymes hydrolyses the 1 ,6- ⁇ -D-glucosidic linkages in pullulan, amylopectin and glycogens and in the ⁇ - and ⁇ -amylase limit dextrins of amylopectin and glycogen as well as against branched oligosaccharides produced by their partial decomposition.
• pullulanase is called a "debranching enzyme"
• pullulanase is an enzyme which breaks only ⁇ - 1 ,6-glycosidic linkage of pullulan and finally produces maltotriose.
• Microbial sources include Aerobacter Aerogenes, Pseudomonas stutzeri, Bacillus polymyxa, B.maceranas, Klebsiella pneumonia and Streptomyces sp. The activity of this enzyme is standardised at 200 PUN/g (Pullulanase Unit Novo).
• 1 UPN is defined as the amount of enzyme which under standard conditions hydrolyses pullulan liberating reduced carbohydrate, with a reducing power equivalent to 1 ⁇ - mole glucose per minute.
• pullulanase isolated from a strain of Bacillus No. 202-1 as described in Biochimica et Biophysica Acta, 397 (1985) 188-193. This pullulanase has an optimum pH of about 8.55-9.0, and is therefore of particular interest in more alkaline detergent compositions. Pullulanase was first discovered from a strain belonging to Aerobacter aerogenes by Bender and Wallenfels in 1961 [Biochem. Z., 334, 79, (1961 )].
• microorganisms capable of producing pullulanase are, for example, Bacillus sp. [J. Jpn. Soc. Starch Sci., 30, 200, (1983)]; Bacillus acidopullulyticus [Agric. Biol. Chem., 52, 2293, (1984)]; Bacillus stearothermophilus [Eur. J. Appl. Microbiol. Biotechnol., 17, 24, (1983)]; Streptococcus mitis - [Biochem, J., 108, 33, (1968)]; Lactobacillus [Denpun Kagaku, 28, 72 (1981 )]; Clostridium sp.
• alkaline or alkalin-resistant pullulanases Horikoshi et al. cultured an alkalophilic strain of the genus Bacillus (Bacillus sp. 202-1 ) and produced alkaline pullulanase (Japanese Patent Publication (Kokoku) No. 277786/1978); and the alkaline pullulanase from Bacillus sp. KSM-AP 1876 described in WO94/19468 (Japanese Patent Application Laid-open (Kokai) No. 87176/1991 ).
• Relevant pullulanase include for example, pullulanases obtainable from Bacillus species (e.g. B.
• alkaline pullulanase suitable for the detergent compositions of the present invention is the alkaline pullulanase described in EP 450 627 by the Kao Corporation, which has an optimum pH in the alkaline range and is stable against surfactants.
• alkaline pullulanase includes an alkaline pullulanase A and an alkaline pullulanase B, both suitable for the purpose of the present invention.
• Another alkaline pullulanase suitable for detergents is described in WO94/19468 by the Kao Corporation.
• pullulanase enzymes described in the following Japanese patent/applications JP04073298 which is directed to an automiatic dishwashing detergent composition comprising a nonionic surfactant, a calcium chelating agent, a lipase and an alkali pullulanase for high detergency
• JP06264094 which describes a laundry detergent compsoition comprising soaps, surfactants and alkali-resistant pullulanase having high detergency; all by the Kao Corporation.
• Particularly preferred is the Pullulanase Promozyme (Trade Mark of Novo), isolated from Bacillus sp. Pullulanase.
• Isopullulanase enzymes are classified under the IUPAC classification EC 3.2.1.57 and the systematic name Pullulan 4-glucanohydrolase.
• the isopullulanase enzymes hydrolyse pullulan to isopanose (6- ⁇ -maltosylglucose).
• Isoamylase enzymes Isoamylases have the ability to debranch glycogen. The enzymes have been detected in a variety of microorganisms including B. amyloliquefacines, Cytophaga sp., P. amyloderamosa and Streptomyces sp. No.28.
• the activity of the enzyme is given in MU (maltose units). 1 MU is defined as the amount of enzyme which under standard conditions hydrolyses isoamylose liberating reduced carbohydrate, with a reducing power equivalent to 1 ⁇ -mole maltose per minute.
• Isoamylases are classified under the IUPAC classification EC 3.2.1.68 and the systematic name glycogen 6-glucanohydrolase.
• the isoamylase enzymes hydrolyse the 1 ,6- ⁇ -D-glucosidic branch linkages in glycogen, amylopectin and their ⁇ -limit dextrins.
• the isoamylases are distinguished from the pullulanase enzyme by their inability to attack pullulan, by limited action on ⁇ -limit dextrins and by their complete action on glycogen.
• Relevant isoamylases include for example isoamylases obtainable from Pseudomonas species (e.g. Pseudomonas sp. SMP1 or Pseudomonas amyloderomosa SB15), Bacillus species (e.g. B. amyloliquefaciens), Flavobacterium species or Cytophaga (Lysobacter) species.
• Isoamylase is commercially available from Sigma, ICN and Hayashibara. Also suitable are the pullulanase, isopullulanase and iso-amylases enzymes described as starch debranching enzymes in the following Japanese patent/applications: JP 07179900, JP06172796, JP06172792, JP04065494, JP02132193 and JP 02132192, all by the Kao Corporation.
• Pullulanase type II enzymes are defined as amylopullulanases and hydrolyze randomly the ⁇ ,1-4 linkages in addition to the branching points ( ⁇ -1 ,6-linkages) in polysaccharides and dextrins, in contrast to pullulanase type I enzymes which only hydrolyse ⁇ ,1-6 linkages in branched polysaccharides.
• the pullulanase type II can originate from extremophiles, especially extreme thermophiles and hyperthermophiles such as those isolated from Pyrococcus woesei, P. furiosus, Thermococcus litoralis, Thermococcus celer, Desulfurococcus mucosus, Bacteroides thetiaotaomicron, Staphylotherrmus marinus, Pyrodictium abysii, Bacillus stearothermophilus such as described in "A new Bacterial World", Extremophiles, 1997, 1 :2-13.
• Suitable pullulanase for the purpose of the present invention is the alkaline pullulanase exhibiting alkaline ⁇ -amylase activity described in WO 96/35794. Also suitable is the alkaline pullulanase Y having an ⁇ -amylase activity as described in EP 418 835, having an optimum pH at higher alkaline range than conventional alkaline pullulanases and exhibiting excellent pH stability in a wide pH range and strong resistance to almost all detergent ingredients such as surfactants, chelating agents and proteases.
• the pullulanase type II is generally comprised in the detergent composition of the invention in an amount of 0.0001 % to 10% by weight, preferably 0.001 % to 0.5% by weight.
• Suitable lipase enzymes include those produced by microorganisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC 19.154, as disclosed in British Patent 1 ,372,034.
• Suitable lipases include those which show a positive immunological cross-reaction with the antibody of the lipase, produced by the microorganism Pseudomonas fluorescent IAM 1057. This lipase is available from Amano Pharmaceutical Co. Ltd., Nagoya, Japan, under the trade name Lipase P "Amano,” hereinafter referred to as "Amano-P".
• Other suitable commercial lipases include Amano-CES, lipases ex Chromobacter viscosum, e.g.
• Chromobacter viscosum var. lipolyticum NRRLB 3673 from Toyo Jozo Co., Tagata, Japan; Chromobacter viscosum lipases from U.S. Biochemical Corp., U.S.A. and Disoynth Co., The Netherlands, and lipases ex Pseudomonas gladioli.
• lipases such as M1 Lipase ⁇ ar
• lipolytic enzymes described in EP 258 068, WO 92/05249 and WO 95/22615 by Novo Nordisk and in WO 94/03578, WO 95/35381 and WO 96/00292 by Unilever.
• cutinases [EC 3.1.1.50] which can be considered as a special kind of lipase, namely lipases which do not require interfacial activation.
• Addition of cutinases to detergent compositions have been described in e.g. WO-A- 88/09367 (Genencor); WO 90/09446 (Plant Genetic System) and WO 94/14963 and WO 94/14964 (Unilever).
• the lipases and/or cutinases are normally incorporated in the detergent composition at levels from 0.0001 % to 2% of pure enzyme by weight of the detergent composition.
• Suitable proteases are the subtilisins which are obtained from particular strains of B. subtilis and B. licheniformis (subtilisin BPN and BPN').
• One suitable protease is obtained from a strain of Bacillus, having maximum activity throughout the pH range of 8-12, developed and sold as ESPERASE® by Novo Industries A/S of Denmark, hereinafter "Novo". The preparation of this enzyme and analogous enzymes is described in GB 1 ,243,784 to Novo.
• Other suitable proteases include ALCALASE®, DURAZYM® and SAVINASE® from Novo and MAXATASE®.
• MAXACAL®, PROPERASE® and MAXAPEM® protein engineered Maxacal
• proteases described in patent applications EP 251 446 and WO 91/06637, protease BLAP® described in WO91/02792 and their variants described in WO 95/23221. See also a high pH protease from Bacillus sp. NCIMB 40338 described in WO 93/18140 A to Novo. Enzymatic detergents comprising protease, one or more other enzymes, and a reversible protease inhibitor are described in WO 92/03529 A to Novo. When desired, a protease having decreased adsorption and increased hydrolysis is available as described in WO 95/07791 to Procter & Gamble.
• protease for detergents suitable herein is described in WO 94/25583 to Novo.
• Other suitable proteases are described in EP 516 200 by Unilever.
• Proteolytic enzymes also encompass modified bacterial serine proteases, such as those described in European Patent Application Serial Number 87 303761.8, filed April 28, 1987 (particularly pages 17, 24 and 98), and which is called herein "Protease B", and in European Patent Application 199,404, Venegas, published October 29, 1986, which refers to a modified bacterial serine protealytic enzyme which is called "Protease A" herein.
• Protease C is a variant of an alkaline serine protease from Bacillus in which lysine replaced arginine at position 27, tyrosine replaced valine at position 104, serine replaced asparagine at position 123, and alanine replaced threonine at position 274.
• Protease C is described in WO 91/06637. Genetically modified variants, particularly of Protease C, are also included herein.
• a preferred protease referred to as "Protease D” is a carbonyl hydrolase variant having an amino acid sequence not found in nature, which is derived from a precursor carbonyl hydrolase by substituting a different amino acid for a plurality of amino acid residues at a position in said carbonyl hydrolase equivalent to position +76, preferably also in combination with one or more amino acid residue positions equivalent to those selected from the group consisting of +99, +101 , +103, +104, +107, +123, +27, +105, +109, +126, +128, +135, +156, +166, +195, +197, +204, +206, +210, +216, +217, +218, +222, +260, +265, and/or +274 according to the numbering of Bacillus amyloliquefaciens subtilisin, as described in WO95/10591 and WO95/10592.
• the "protease D” variants have preferably the amino acid substitution set 76/103/104, more preferably the substitution set N76D/S103A ⁇ /104I.
• a carbonyl hydrolase variant of the protease described in WO95/10591 having an amino acid sequence derived by replacement of a plurality of amino acid residues replaced in the precursor enzyme corresponding to position +210 in combination with one or more of the following residues : +33, +62, +67, +76, +100, +101 , +103, +104, +107, +128, +129, +130, +132, +135, +156, +158, +164, +166, +167, +170, +209, +215, +217, +218, and +222, where the numbered position corresponds to naturally- occurring subtilisin from Bacillus amyloliquefaciens or to equivalent amino acid residues in other carbonyl hydrolases or subtilisins, such as Bacillus lentus subtilisin (co
• proteases are multiply-substituted protease variants. These protease variants comprise a substitution of an amino acid residue with another naturally occuring amino acid residue at an amino acid residue position corresponding to position 103 of Bacillus amyloliquefaciens subtilisin in combination with a substitution of an amino acid residue positions corresponding to positions 1 , 3, 4, 8, 9, 10, 12, 13, 16, 17, 18, 19, 20, 21 , 22, 24, 27, 33, 37, 38, 42, 43, 48, 55, 57, 58, 61 , 62, 68, 72, 75, 76, 77, 78, 79, 86, 87, 89, 97, 98, 99, 101 , 102, 104, 106, 107, 109, 111 , 114, 116, 117, 119, 121 , 123, 126, 128, 130, 131 , 133, 134, 137, 140, 141 , 142, 146, 147, 158, 159, 160
• Preferred multiply substituted protease variants have te amino acid substitution set 101/103/104/159/232/236/245/248/252, more preferably
• compositions of the present invention can further comprise other enzymes.
• the cellulases usable in the present invention include both bacterial or fungal cellulases. Preferably, they will have a pH optimum of between 5 and 12 and a specific activity above 50 CEVU/mg (Cellulose Viscosity Unit). Suitable cellulases are disclosed in U.S. Patent 4,435,307, Barbesgoard et al, J61078384 and WO96/02653 which discloses fungal cellulase produced respectively from Humicola insolens, Trichoderma, Thielavia and Sporotrichum. EP 739 982 describes cellulases isolated from novel Bacillus species.
• Suitable cellulases are also disclosed in GB-A-2.075.028; GB-A-2.095.275; DE-OS-2.247.832 and W095/26398.
• Examples of such cellulases are cellulases produced by a strain of Humicola insolens (Humicola grisea var. thermoidea), particularly the Humicola strain DSM 1800.
• Suitable cellulases are cellulases originated from Humicola insolens having a molecular weight of about 50KDa, an isoelectric point of 5.5 and containing 415 amino acids; and a " 43kD endoglucanase derived from Humicola insolens, DSM 1800, exhibiting cellulase activity; a preferred endoglucanase component has the amino acid sequence disclosed in PCT Patent Application No. WO 91/17243.
• suitable cellulases are the EGIII cellulases from Trichoderma longibrachiatum described in WO94/21801 , Genencor, published September 29, 1994. Especially suitable cellulases are the cellulases having color care benefits.
• cellulases examples include cellulases described in European patent application No. 91202879.2, filed November 6, 1991 (Novo). Carezyme and Celluzyme (Novo Nordisk A/S) are especially useful. See also W091/17244 and WO91/21801. Other suitable cellulases for fabric care and/or cleaning properties are described in WO96/34092, W096/17994 and W095/24471. Said cellulases are normally incorporated in the detergent composition at levels from 0.0001 % to 2% of pure enzyme by weight of the detergent composition. Peroxidase enzymes are used in combination with oxygen sources, e.g.
• Peroxidase enzymes are known in the art, and include, for example, horseradish peroxidase, ligninase and haloperoxidase such as chloro- and bromo-peroxidase.
• Peroxidase-containing detergent compositions are disclosed, for example, in PCT International Application WO 89/099813, WO89/09813 and in European Patent application EP No. 91202882.6, filed on November 6, 1991 and EP No. 96870013.8, filed February 20, 1996. Also suitable is the laccase enzyme.
• Enhancers are generally comprised at a level of from 0.1 % to 5% by weight of total composition.
• Preferred enhancers are substitued phenthiazine and phenoxasine 10-Phenothiazinepropionicacid (PPT), 10-ethylphenothiazine-4- carboxylic acid (EPC), 10-phenoxazinepropionic acid (POP) and 10- methylphenoxazine (described in WO 94/12621 ) and substitued syringates (C3- C5 substitued alkyl syringates) and phenols.
• Sodium percarbonate or perborate are preferred sources of hydrogen peroxide.
• Said peroxidases are normally incorporated in the detergent composition at levels from 0.0001% to 2% of pure enzyme by weight of the detergent composition.
• the above-mentioned enzymes may be of any suitable origin, such as vegetable, animal, bacterial, fungal and yeast origin. Origin can further be mesophilic or extremophilic (psychrophilic, psych rotrophic, thermophilic, barophilic, alkalophilic, acidophilic, halophilic, etc.). Purified or non-purified forms of these enzymes may be used.
• the variants may be designed such that the compatibility of the enzyme to commonly encountered ingredients of such compositions is increased.
• the variant may be designed such that the optimal pH, bleach or chelant stability, catalytic activity and the like, of the enzyme variant is tailored to suit the particular cleaning application.
• the isoelectric point of such enzymes may be modified by the substitution of some charged amino acids, e.g. an increase in isoelectric point may help to improve compatibility with anionic surfactants.
• the stability of the enzymes may be further enhanced by the creation of e.g. additional salt bridges and enforcing calcium binding sites to increase chelant stability. Special attention must be paid to the cellulases as most of the cellulases have separate binding domains (CBD). Properties of such enzymes can be altered by modifications in these domains.
• the enzymes can be added as separate single ingredients (prills, granulates, stabilized liquids, etc... containing one enzyme ) or as mixtures of two or more enzymes ( e.g. cogranulates ).
• enzyme oxidation scavengers which are described in Copending European Patent application 92870018.6 filed on January 31 , 1992.
• enzyme oxidation scavengers are ethoxylated tetraethylene polyamines.
• a range of enzyme materials and means for their incorporation into synthetic detergent compositions is also disclosed in WO 9307263 A and WO 9307260 A to Genencor International, WO 8908694 A to Novo, and U.S. 3,553,139, January 5, 1971 to McCarty et al. Enzymes are further disclosed in U.S. 4,101 ,457, Place et al, July 18, 1978, and in U.S. 4,507,219, Hughes, March 26, 1985. Enzyme materials useful for liquid detergent formulations, and their incorporation into such formulations, are disclosed in U.S. 4,261 ,868, Hora et al, April 14, 1981. Enzymes for use in detergents can be stabilised by various techniques.
• Enzyme stabilisation techniques are disclosed and exemplified in U.S. 3,600,319, August 17, 1971 , Gedge et al, EP 199,405 and EP 200,586, October 29, 1986, Venegas. Enzyme stabilisation systems are also described, for example, in U.S. 3,519,570. A useful Bacillus, sp. AC13 giving proteases, xylanases and cellulases, is described in WO 9401532 A to Novo.
• a further preferred ingredient of the detergent compositions of the present invention include bleaching agents. Indeed, it has been found that the oxidisation of the starch material by a bleaching agent renders starch more soluble and therefore is more easily removed. Moreover, the bleach will help the dingy cleaning of the fabric by reducing the overall colour of the treated fabric. Therefore, the compositions of the present invention further comprising a bleaching agent will provide improved removal of starch-containing stains and soils, improved whiteness maintenance and mainly improved dingy cleaning.
• Suitable bleaching agents for the purpose of the present invention include hydrogen peroxide, PB1 , PB4 and percarbonate with a particle size of 400-800 microns.
• These bleaching agent components can include one or more oxygen bleaching agents and, depending upon the bleaching agent chosen, one or more bleach activators. When present oxygen bleaching compounds will typically be present at levels of from about 1 % to about 25%.
• the bleaching agent component for use herein can be any of the bleaching agents useful for detergent compositions including oxygen bleaches as well as others known in the art.
• the bleaching agent suitable for the present invention can be an activated or non-activated bleaching agent.
• oxygen bleaching agent that can be used encompasses percarboxylic acid bleaching agents and salts thereof. Suitable examples of this class of agents include magnesium monoperoxyphthalate hexahydrate, the magnesium salt of meta-chloro perbenzoic acid, 4-nonylamino-4- oxoperoxybutyric acid and diperoxydodecanedioic acid.
• Such bleaching agents are disclosed in U.S. Patent 4,483,781 , U.S. Patent Application 740,446, European Patent Application 0,133,354 and U.S. Patent 4,412,934.
• Highly preferred bleaching agents also include 6-nonylamino-6-oxoperoxycaproic acid as described in U.S. Patent 4,634,551.
• bleaching agents that can be used encompasses the halogen bleaching agents.
• hypohalite bleaching agents include trichloro isocyanuric acid and the sodium and potassium dichloroisocyanurates and N-chloro and N-bromo alkane sulphonamides. Such materials are normally added at 0.5-10% by weight of the finished product, preferably 1-5% by weight.
• the hydrogen peroxide releasing agents can be used in combination with bleach activators such as tetraacetylethylenediamine (TAED), nonanoyloxybenzene- sulfonate (NOBS, described in US 4,412,934), 3,5,- trimethylhexanoloxybenzenesulfonate (ISONOBS, described in EP 120,591 ) or pentaacetylglucose (PAG)or Phenolsulfonate ester of N-nonanoyl-6- aminocaproic acid (NACA-OBS, described in WO94/28106), which are perhydrolyzed to form a peracid as the active bleaching species, leading to improved bleaching effect.
• bleach activators such as tetraacetylethylenediamine (TAED), nonanoyloxybenzene- sulfonate (NOBS, described in US 4,412,934), 3,5,- trimethylhexanoloxybenzenes
• acylated citrate esters such as disclosed in Copending European Patent Application No. 91870207.7 and unsymetrical acyclic imide bleach activator of the following formula as disclosed in the Procter & Gamble co-pending patent applications US serial No. 60/022,786 (filed July 30, 1996) and No. 60/028,122 (filed October 15, 1996) :
• is a C7-C13 linear or branched chain saturated or unsaturated alkyl group
• R2 is a C-j-C ⁇ , linear or branched chain saturated or unsaturated alkyl group
• R3 is a C1-C4 linear or branched chain saturated or unsaturated alkyl group.
• bleaching agents including peroxyacids and bleaching systems comprising bleach activators and peroxygen bleaching compounds for use in detergent compositions according to the invention are described in our co- pending applications USSN 08/136,626, PCT/US95/07823, W095/27772, W095/27773, W095/27774 and W095/27775.
• the hydrogen peroxide may also be present by adding an enzymatic system (i.e. an enzyme and a substrate therefore) which is capable of generating hydrogen peroxide at the beginning or during the washing and/or rinsing process.
• an enzymatic system i.e. an enzyme and a substrate therefore
• Such enzymatic systems are disclosed in EP Patent Application 91202655.6 filed October 9, 1991.
• Metal-containing catalysts for use in bleach compositions include cobalt- containing catalysts such as Pentaamine acetate cobalt(lll) salts and manganese-containing catalysts such as those described in EPA 549 271 ; EPA 549 272; EPA 458 397; US 5,246,621 ; EPA 458 398; US 5,194,416 and US 5,114,611.
• Bleaching composition comprising a peroxy compound, a manganese-containing bleach catalyst and a chelating agent is described in the patent application No 94870206.3.
• the bleaching compounds can be catalyzed by means of a manganese compound.
• Such compounds are well known in the art and include, for example, the manganese-based catalysts disclosed in U.S.
• transition -metal bleach catalysts being complexes of a transition metal and a cross bridged macropolycyclic ligands such as described in Procter & Gamble patent applications WO 98/39405, WO 98/39406 and WO 98/39098.
• Such transition -metal bleach catalyst can be prepared according to Procter & Gamble patent application W098/39335 or according to J.Amer.Chem.So ⁇ , (1990), 112, 8604.
• Bleaching agents other than oxygen bleaching agents are also known in the art and can be utilized herein.
• One type of non-oxygen bleaching agent of particular interest includes photoactivated bleaching agents such as the sulfonated zinc and/or aluminum phthalocyanines. These materials can be deposited upon the substrate during the washing process.
• the sulfonated zinc phthalocyanine Upon irradiation with light, in the presence of oxygen, such as by hanging clothes out to dry in the daylight, the sulfonated zinc phthalocyanine is activated and, consequently, the substrate is bleached.
• Preferred zinc phthalocyanine and a photoactivated bleaching process are described in U.S. Patent 4,033,718.
• detergent compositions will contain about 0.025% to about 1.25%, by weight, of sulfonated zinc phthalocyanine.
• Fabric softening agents can also be incorporated into detergent compositions in accordance with the present invention. These agents may be inorganic or organic in type. Inorganic softening agents are exemplified by the smectite clays disclosed in GB-A-1 400 898 and in USP 5,019,292. Organic fabric softening agents include the water insoluble tertiary amines as disclosed in GB-A1 514 276 and EP-B0 011 340 and their combination with mono C12-C14 quaternary ammonium salts are disclosed in EP-B-0 026 527 and EP-B-0 026 528 and di- long-chain amides as disclosed in EP-B-0 242 919.
• smectite clay levels of smectite clay are normally in the range from 2% to 20%, more preferably from 5% to 15% by weight, with the material being added as a dry mixed component to the remainder of the formulation.
• Organic fabric softening agents such as the water-insoluble tertiary amines or dilong chain amide materials are incorporated at levels of from 0.5% to 5% by weight, normally from 1 % to 3% by weight whilst the high molecular weight polyethylene oxide materials and the water soluble cationic materials are added at levels of from 0.1 % to 2%, normally from 0.15% to 1.5% by weight.
• These materials are normally added to the spray dried portion of the composition, although in some instances it may be more convenient to add them as a dry mixed particulate, or spray them as molten liquid on to other solid components of the composition.
• compositions according to the present invention may further comprise a builder system.
• a builder system Any conventional builder system is suitable for use herein including aluminosilicate materials, silicates, polycarboxylates, alkyl- or alkenyl- succinic acid and fatty acids, materials such as ethylenediamine tetraacetate, diethylene triamine pentamethyleneacetate, metal ion sequestrants such as aminopolyphosphonates, particularly ethylenediamine tetramethylene phosphonic acid and diethylene triamine pentamethylenephosphonic acid.
• Phosphate builders can also be used herein.
• Suitable builders can be an inorganic ion exchange material, commonly an inorganic hydrated aluminosilicate material, more particularly a hydrated synthetic zeolite such as hydrated zeolite A, X, B, HS or MAP.
• Another suitable inorganic builder material is layered silicate, e.g. SKS-6
• SKS-6 is a crystalline layered silicate consisting of sodium silicate
• Suitable polycarboxylates containing one carboxy group include lactic acid, glycolic acid and ether derivatives thereof as disclosed in Belgian Patent Nos.
• Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycollic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates described in German Offenlegenschrift 2,446,686, and 2,446,687 and U.S. Patent No. 3,935,257 and the sulfinyl carboxylates described in Belgian Patent No. 840,623.
• Polycarboxylates containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citraconates as well as succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No. 1 ,379,241 , lactoxysuccinates described in Netherlands Application 7205873, and the oxypolycarboxylate materials such as 2-oxa-1 ,1 ,3-propane tricarboxylates described in British Patent No. 1 ,387,447.
• Polycarboxylates containing four carboxy groups include oxydisuccinates disclosed in British Patent No. 1 ,261 ,829, 1 ,1 ,2,2-ethane tetracarboxylates, 1 ,1 ,3,3-propane tetracarboxylates and 1 ,1 ,2,3-propane tetracarboxylates.
• Polycarboxylates containing sulfo substituents include the sulfosuccinate derivatives disclosed in British Patent Nos. 1 ,398,421 and 1 ,398,422 and in U.S. Patent No. 3,936,448, and the sulfonated pyrolysed citrates described in British Patent No. 1 ,082,179, while polycarboxylates containing phosphone substituents are disclosed in British Patent No. 1 ,439,000.
• Alicyclic and heterocyclic polycarboxylates include cyclopentane-cis.cis.cis- tetracarboxylates, cyclopentadienide pentacarboxylates, 2,3,4,5-tetrahydro-furan - cis, cis, cis-tetracarboxylates, 2,5-tetrahydro-furan -cis - dicarboxylates, 2,2,5,5- tetrahydrofuran - tetracarboxylates, 1 ,2,3,4, 5, 6-hexane -hexacar-boxylates and and carboxymethyl derivatives of polyhydric alcohols such as sorbitol, mannitol and xylitol.
• Aromatic poly-carboxylates include mellitic acid, pyromellitic acid and the phthalic acid derivatives disclosed in British Patent No. 1 ,425,343.
• the preferred polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly citrates.
• Preferred builder systems for use in the present compositions include a mixture of a water-insoluble aluminosilicate builder such as zeolite A or of a layered silicate (SKS-6), and a water-soluble carboxylate chelating agent such as citric acid.
• Other preferred builder systems include a mixture of a water-insoluble aluminosilicate builder such as zeolite A, and a watersoluble carboxylate chelating agent such as citric acid.
• Preferred builder systems for use in liquid detergent compositions of the present invention are soaps and polycarboxylates.
• builder materials that can form part of the builder system for use in granular compositions include inorganic materials such as alkali metal carbonates, bicarbonates, silicates, and organic materials such as the organic phosphonates, amino polyalkylene phosphonates and amino polycarboxylates.
• suitable water-soluble organic salts are the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of this type are disclosed in GB-A-1 ,596,756. Examples of such salts are polyacrylates of MW 2000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 20,000 to 70,000, especially about 40,000.
• Detergency builder salts are normally included in amounts of from 5% to 80% by weight of the composition preferably from 10% to 70% and most usually from 30% to 60% by weight.
• the detergent compositions herein may also optionally contain one or more iron and/or manganese chelating agents.
• chelating agents can be selected from the group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelating agents and mixtures therein, all as hereinafter defined. Without intending to be bound by theory, it is believed that the benefit of these materials is due in part to their exceptional ability to remove iron and manganese ions from washing solutions by formation of soluble chelates.
• Amino carboxylates useful as optional chelating agents include ethylenediaminetetracetates, N-hydroxyethylethylenediaminetriacetates, nitrilo- triacetates, ethylenediamine tetraproprionates, triethylenetetraaminehexacetates, diethylenetriaminepentaacetates, and ethanoldiglycines, alkali metal, ammonium, and substituted ammonium salts therein and mixtures therein.
• Amino phosphonates are also suitable for use as chelating agents in the compositions of the invention when at lease low levels of total phosphorus are permitted in detergent compositions, and include ethylenediaminetetrakis (methylenephosphonates) as DEQUEST.
• these amino phosphonates to not contain alkyl or alkenyl groups with more than about 6 carbon atoms.
• Polyfunctionally-substituted aromatic chelating agents are also useful in the compositions herein. See U.S. Patent 3,812,044, issued May 21 , 1974, to Connor et al.
• Preferred compounds of this type in acid form are dihydroxydisulfobenzenes such as 1 ,2-dihydroxy-3,5-disulfobenzene.
• EDDS ethylenediamine disuccinate
• [S,S] isomer as described in U.S. Patent 4,704,233, November 3, 1987, to Hartman and Perkins.
• compositions herein may also contain water-soluble methyl glycine diacetic acid (MGDA) salts (or acid form) as a chelant or co-builder useful with, for example, insoluble builders such as zeolites, layered silicates and the like.
• MGDA water-soluble methyl glycine diacetic acid
• these chelating agents will generally comprise from about 0.1 % to about 15% by weight of the detergent compositions herein. More preferably, if utilized, the chelating agents will comprise from about 0.1 % to about 3.0% by weight of such compositions.
• a suds suppressor exemplified by silicones, and silica-silicone mixtures.
• Silicones can be generally represented by alkylated polysiloxane materials while silica is normally used in finely divided forms exemplified by silica aerogels and xerogels and hydrophobic silicas of various types. These materials can be incorporated as particulates in which the suds suppressor is advantageously releasably incorporated in a water-soluble or water-dispersible, substantially non-surface-active detergent impermeable carrier.
• the suds suppressor can be dissolved or dispersed in a liquid carrier and applied by spraying on to one or more of the other components.
• a preferred silicone suds controlling agent is disclosed in Bartollota et al. U.S. Patent 3 933 672.
• Other particularly useful suds suppressors are the self- emulsifying silicone suds suppressors, described in German Patent Application DTOS 2 646 126 published April 28, 1977.
• An example of such a compound is DC-544, commercially available from Dow Corning, which is a siloxane-glycol copolymer.
• Especially preferred suds controlling agent are the suds suppressor system comprising a mixture of silicone oils and 2-alkyl-alcanols. Suitable 2-alkyl- alkanols are 2-butyl-octanol which are commercially available under the trade name Isofol 12 R.
• Such suds suppressor system are described in Copending European Patent application N 92870174.7 filed 10 November, 1992.
• Especially preferred silicone suds controlling agents are described in Copending European Patent application N°92201649.8.
• Said compositions can comprise a silicone/silica mixture in combination with fumed nonporous silica such as AerosilR.
• the suds suppressors described above are normally employed at levels of from 0.001 % to 2% by weight of the composition, preferably from 0.01 % to 1 % by weight.
• detergent compositions may be employed, such as soil-suspending agents, soil-release agents, optical brighteners, abrasives, bactericides, tarnish inhibitors, coloring agents, and/or encapsulated or non- encapsulated perfumes.
• suitable encapsulating materials are water soluble capsules which consist of a matrix of polysaccharide and polyhydroxy compounds such as described in GB 1 ,464,616.
• Other suitable water soluble encapsulating materials comprise dextrins derived from ungelatinized starch acid-esters of substituted dicarboxylic acids such as described in US 3,455,838. These acid-ester dextrins are, preferably, prepared from such starches as waxy maize, waxy sorghum, sago, tapioca and potato.
• Suitable examples of said encapsulating materials include N-Lok manufactured by National Starch. The N-Lok encapsulating material consists of a modified maize starch and glucose.
• the starch is modified by adding monofunctional substituted groups such as octenyl succinic acid anhydride.
• Preferred optical brighteners are anionic in character, examples of which are disodium 4,4'-bis-(2-diethanoiamino-4-anilino -s- triazin-6-ylamino)stilbene-2:2' disulphonate, disodium 4, - 4'-bis-(2-morpholino-4-anilino-s-triazin-6-ylamino- stilbene-2:2' - disulphonate, disodium 4,4' - bis-(2,4-dianilino-s-triazin-6- ylamino)stilbene-2:2' - disulphonate, monosodium 4',4" -bis-(2,4-dianilino-s-tri- azin-6 ylamino)stilbene-2-sulphonate, disodium 4,4' -bis-(2-anilino-4-(N-methyl
• polyethylene glycols particularly those of molecular weight 1000-10000, more particularly 2000 to 8000 and most preferably about 4000. These are used at levels of from 0.20% to 5% more preferably from 0.25% to 2.5% by weight. These polymers and the previously mentioned homo- or co-polymeric polycarboxylate salts are valuable for improving whiteness maintenance, fabric ash deposition, and cleaning performance on clay, proteinaceous and oxidizable soils in the presence of transition metal impurities.
• the detergent compositions of the present invention will further comprise an anti-redeposition agent (also referred to as soil suspension agent) for improved dingy cleaning.
• an anti-redeposition agent also referred to as soil suspension agent
• such anti-redeposition agents will capture the retrograded starch within the wash solution and prevent its (re-)deposition onto the fabric surface. Therefore, the combination of such with the retrograded starch degrading enzyme of the present invention gives a synergistic dingy clean up.
• Antiredeposition and soil suspension agents suitable herein include cellulose derivatives such as methylcellulose, carboxymethylcellulose and hydroxyethylcellulose, and homo- or co-polymeric polycarboxylic acids or their salts.
• Polymers of this type include the polyacrylates and maleic anhydride- acrylic acid copolymers previously mentioned as builders, as well as copolymers of maleic anhydride with ethylene, methylvinyl ether or methacrylic acid, the maleic anhydride constituting at least 20 mole percent of the copolymer. These materials are normally used at levels of from 0.5% to 10% by weight, more preferably from 0.75% to 8%, most preferably from 1 % to 6% by weight of the composition..
• a preferred anti redeposition agent for the purpose of the present invention is the carboxymethylcellulose.
• Soil release agents useful in compositions of the present invention are conventionally copolymers or terpolymers of terephthalic acid with ethylene glycol and/or propylene glycol units in various arrangements. Examples of such polymers are disclosed in the commonly assigned US Patent Nos. 4116885 and 4711730 and European Published Patent Application No. 0 272 033. A particular preferred polymer in accordance with EP-A-0 272 033 has the formula
• modified polyesters as random copolymers of dimethyl terephthalate, dimethyl sulfoisophthalate, ethylene glycol and 1-2 propane diol, the end groups consisting primarily of sulphobenzoate and secondarily of mono esters of ethylene glycol and/or propane-diol.
• the target is to obtain a polymer capped at both end by sulphobenzoate groups, "primarily", in the present context most of said copolymers herein will be end-capped by sulphobenzoate groups.
• some copolymers will be less than fully capped, and therefore their end groups may consist of monoester of ethylene glycol and/or propane 1-2 diol, thereof consist “secondarily” of such species.
• the selected polyesters herein contain about 46% by weight of dimethyl terephthalic acid, about 16% by weight of propane -1.2 diol, about 10% by weight ethylene glycol about 13% by weight of dimethyl sulfobenzoic acid and about 15% by weight of sulfoisophthalic acid, and have a molecular weight of about 3.000.
• the polyesters and their method of preparation are described in detail in EPA 311 342.
• chlorine scavenger such as perborate, ammonium sulfate, sodium sulphite or polyethyleneimine at a level above 0.1 % by weight of total composition, in the formulas will provide improved through the wash stability of the detergent enzymes.
• Compositions comprising chlorine scavenger are described in the European patent application 92870018.6 filed January 31 , 1992.
• Alkoxylated polycarboxylates such as those prepared from polyacrylates are useful herein to provide additional grease removal performance. Such materials are described in WO 91/08281 and PCT 90/01815 at p. 4 et seq., incorporated herein by reference. Chemically, these materials comprise polyacrylates having one ethoxy side-chain per every 7-8 acrylate units. The side-chains are of the formula -(CH2CH2 ⁇ ) m (CH2) n CH3 wherein m is 2-3 and n is 6-12. The side- chains are ester-linked to the polyacrylate "backbone” to provide a "comb" polymer type structure. The molecular weight can vary, but is typically in the range of about 2000 to about 50,000. Such alkoxylated polycarboxylates can comprise from about 0.05% to about 10%, by weight, of the compositions herein.
• the detergent composition of the present invention can also contain dispersants : Suitable water-soluble organic salts are the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of this type are disclosed in GB-A-1 , 596,756. Examples of such salts are polyacrylates of MW 2000-5000 and their copolymers with maleic anhydride, such copolymers having a molecular weight of from 1 ,000 to 100,000.
• copolymer of acrylate and methylacrylate such as the 480N having a molecular weight of 4000, at a level from 0.5-20% by weight of composition can be added in the detergent compositions of the present invention.
• compositions of the invention may contain a lime soap peptiser compound, which has preferably a lime soap dispersing power (LSDP), as defined hereinafter of no more than 8, preferably no more than 7, most preferably no more than 6.
• LSDP lime soap dispersing power
• the lime soap peptiser compound is preferably present at a level from 0% to 20% by weight.
• a numerical measure of the effectiveness of a lime soap peptiser is given by the lime soap dispersant power (LSDP) which is determined using the lime soap dispersant test as described in an article by H.C. Borghetty and CA. Bergman, J. Am. Oil. Chem. Soc, volume 27, pages 88-90, (1950).
• Surfactants having good lime soap peptiser capability will include certain amine oxides, betaines, sulfobetaines, alkyl ethoxysulfates and ethoxylated alcohols.
• Exemplary surfactants having a LSDP of no more than 8 for use in accord with the present invention include C ⁇
• Polymeric lime soap peptisers suitable for use herein are described in the article by M.K. Nagarajan, W.F. Masler, to be found in Cosmetics and Toiletries, volume 104, pages 71-73, (1989).
• Hydrophobic bleaches such as 4-[N-octanoyl-6-aminohexanoyl]benzene sulfonate, 4-[N-nonanoyl-6-aminohexanoyl]benzene sulfonate, 4-[N-decanoyl-6- aminohexanoyrjbenzene sulfonate and mixtures thereof; and nonanoyloxy benzene sulfonate together with hydrophilic / hydrophobic bleach formulations can also be used as lime soap peptisers compounds.
• the detergent compositions of the present invention can also include compounds for inhibiting dye transfer.from one fabric to another of solubilized and suspended dyes encountered during fabric laundering operations involving colored fabrics.
• the detergent compositions according to the present invention also comprise from 0.001 % to 10 %, preferably from 0.01 % to 2%, more preferably from 0.05% to 1% by weight of polymeric dye transfer inhibiting agents.
• Said polymeric dye transfer inhibiting agents are normally incorporated into detergent compositions in order to inhibit the transfer of dyes from colored fabrics onto fabrics washed therewith. These polymers have the ability to complex or adsorb the fugitive dyes washed out of dyed fabrics before the dyes have the opportunity to become attached to other articles in the wash.
• polymeric dye transfer inhibiting agents are polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof. Addition of such polymers also enhances the performance of the enzymes according the invention.
• polyamine N-oxide polymers suitable for use contain units having the following structure formula : P
• A is NO, CO, C, -0-,-S-, -N- ; x is O or 1 ; R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof whereto the nitrogen of the N-0 group can be attached or wherein the nitrogen of the N-0 group is part of these groups.
• the N-0 group can be represented by the following general structures :
• R1 , R2, and R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups or combinations thereof, x or/and y or/and z is 0 or 1 and wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-0 group forms part of these groups.
• the N-0 group can be part of the polymerisable unit (P) or can be attached to the polymeric backbone or a combination of both.
• Suitable polyamine N-oxides wherein the N-0 group forms part of the polymerisable unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic or heterocyclic groups.
• One class of said polyamine N-oxides comprises the group of polyamine N- oxides wherein the nitrogen of the N-0 group forms part of the R-group.
• Preferred polyamine N-oxides are those wherein R is a heterocyclic group such as pyrridine, pyrrole, imidazole, pyrrolidine, piperidine, quinoline, acridine and derivatives thereof.
• Another class of said polyamine N-oxides comprises the group of polyamine N- oxides wherein the nitrogen of the N-0 group is attached to the R-group.
• polyamine N-oxides are the polyamine oxides whereto the N-0 group is attached to the polymerisable unit.
• Preferred class of these polyamine N-oxides are the polyamine N-oxides having the general formula (I) wherein R is an aromatic, heterocyclic or alicyclic groups wherein the nitrogen of the N-0 functional group is part of said R group.
• examples of these classes are polyamine oxides wherein R is a heterocyclic compound such as pyrridine, pyrrole, imidazole and derivatives thereof.
• Another preferred class of polyamine N-oxides are the polyamine oxides having the general formula (I) wherein R are aromatic, heterocyclic or alicyclic groups wherein the nitrogen of the N-0 functional group is attached to said R groups. Examples of these classes are polyamine oxides wherein R groups can be aromatic such as phenyl.
• Any polymer backbone can be used as long as the amine oxide polymer formed is water-soluble and has dye transfer inhibiting properties.
• suitable polymeric backbones are polyvinyls, polyalkylenes, polyesters, polyethers, polyamide, polyimides, polyacrylates and mixtures thereof.
• the amine N-oxide polymers of the present invention typically have a ratio of amine to the amine N-oxide of 10:1 to 1 :1000000.
• the amount of amine oxide groups present in the polyamine oxide polymer can be varied by appropriate copolymerization or by appropriate degree of N-oxidation.
• the ratio of amine to amine N-oxide is from 2:3 to 1 :1000000. More preferably from 1 :4 to 1 :1000000, most preferably from 1 :7 to 1 :1000000.
• the polymers of the present invention actually encompass random or block copolymers where one monomer type is an amine N-oxide and the other monomer type is either an amine N-oxide or not.
• the amine oxide unit of the polyamine N-oxides has a PKa
• PKa ⁇ 7 preferably PKa ⁇ 7, more preferred PKa ⁇ 6.
• the polyamine oxides can be obtained in almost any degree of polymerisation.
• the degree of polymerisation is not critical provided the material has the desired water-solubility and dye-suspending power.
• the average molecular weight is within the range of 500 to 1000,000; preferably from 1 ,000 to 50,000, more preferably from 2,000 to 30,000, most preferably from 3,000 to 20,000.
• N-vinylimidazole N-vinylpyrrolidone polymers used in the present invention have an average molecular weight range from 5,000-1 ,000,000, preferably from
• Highly preferred polymers for use in detergent compositions according to the present invention comprise a polymer selected from N-vinylimidazole N- vinylpyrrolidone copolymers wherein said polymer has an average molecular weight range from 5,000 to 50,000 more preferably from 8,000 to 30,000, most preferably from 10,000 to 20,000.
• the average molecular weight range was determined by light scattering as described in Barth H.G. and Mays J.W. Chemical Analysis Vol 113, "Modern
• N-vinylimidazole N-vinylpyrrolidone copolymers have an average molecular weight range from 5,000 to 50,000; more preferably from 8,000 to
• the N-vinylimidazole N-vinylpyrrolidone copolymers characterized by having said average molecular weight range provide excellent dye transfer inhibiting properties while not adversely affecting the cleaning performance of detergent compositions formulated therewith.
• the N-vinylimidazole N-vinylpyrrolidone copolymer of the present invention has a molar ratio of N-vinylimidazole to N-vinylpyrrolidone from 1 to 0.2, more preferably from 0.8 to 0.3, most preferably from 0.6 to 0.4 .
• polyvinylpyrrolidone having an average molecular weight of from about 2,500 to about 400,000, preferably from about 5,000 to about 200,000, more preferably from about 5,000 to about 50,000, and most preferably from about 5,000 to about 15,000.
• PVP polyvinylpyrrolidone
• Suitable polyvinylpyrrolidones are commercially vailable from ISP Corporation, New York, NY and Montreal, Canada under the product names PVP K-15 (viscosity molecular weight of 10,000), PVP K-30 (average molecular weight of 40,000), PVP K-60 (average molecular weight of 160,000), and PVP K-90 (average molecular weight of 360,000).
• polyvinylpyrrolidones which are commercially available from BASF Cooperation include Sokalan HP 165 and Sokalan HP 12; polyvinylpyrrolidones known to persons skilled in the detergent field (see for example EP-A-262,897 and EP-A- 256,696).
• Polyvinyloxazolidone The detergent compositions of the present invention may also utilize polyvinyloxazolidone as a polymeric dye transfer inhibiting agent.
• Said polyvinyloxazoiidones have an average molecular weight of from about 2,500 to about 400,000, preferably from about 5,000 to about 200,000, more preferably from about 5,000 to about 50,000, and most preferably from about 5,000 to about 15,000.
• the detergent compositions of the present invention may also utilize polyvinylimidazole as polymeric dye transfer inhibiting agent.
• Said polyvinylimidazoles have an average about 2,500 to about 400,000, preferably from about 5,000 to about 200,000, more preferably from about 5,000 to about 50,000, and most preferably from about 5,000 to about 15,000.
• Cross-linked polymers are polymers whose backbone are interconnected to a certain degree; these links can be of chemical or physical nature, possibly with active groups n the backbone or on branches; cross-linked polymers have been described in the Journal of Polymer Science, volume 22, pages 1035-1039.
• the cross-linked polymers are made in such a way that they form a three-dimensional rigid structure, which can entrap dyes in the pores formed by the three-dimensional structure.
• the cross- linked polymers entrap the dyes by swelling.
• Such cross-linked polymers are described in the co-pending patent application 94870213.9
• compositions of the invention may be used in essentially any washing or cleaning methods, including soaking methods, pretreatment methods and methods with rinsing steps for which a separate rinse aid composition may be added.
• a conventional laundry method comprises treating soiled fabric with an aqueous liquid having dissolved or dispensed therein an effective amount of the laundry detergent and/or fabric care composition.
• a preferred machine dishwashing method comprises treating soiled articles with an aqueous liquid having dissolved or dispensed therein an effective amount of the machine diswashing or rinsing composition.
• a conventional effective amount of the machine dishwashing composition means from 8-60 g of product dissolved or dispersed in a wash volume from 3-10 litres.
• soiled dishes are contacted with an effective amount of the diswashing composition, typically from 0.5-20g (per 25 dishes being treated).
• Preferred manual dishwashing methods include the application of a concentrated solution to the surfaces of the dishes or the soaking in large volume of dilute solution of the detergent composition.
• a conventional hard surface method comprises treating soiled hard items with e.g. a sponge, brush, clothe, etc. with an aqueous liquid having dissolved or dispensed therein an effective amount of the hard surface cleaner and/or with such composition undiluted. It also encompasses or the soaking in a concentrated solution or in a large volume of dilute solution of the detergent composition.
• the process of the invention is conveniently carried out in the course of the cleaning process.
• the method of cleaning is preferably carried out at 5°C to 95°C, especially between 10°C and 60°C.
• the pH of the treatment solution is preferably from 7 to 12.
• the enzymes levels are expressed by pure enzyme by weight of the total composition and unless otherwise specified, the detergent ingredients are expressed by weight of the total compositions.
• the abbreviated component identifications therein have the following meanings:
• LAS Sodium linear C-i -
• TAS Sodium tallow alkyl sulphate.
• CxyAS Sodium C-
• CxySAS Sodium C-
• CxyEz C-
• CxyEzS C-
• CxEOy Cy alcohol with an average of ethoxylation of y.
• Nonionic Mixed ethoxylated/propoxylated fatty alcohol e.g.
• Plurafac LF404 being an alcohol with an average degree of ethoxylation of 3.8 and an average degree of propoxylation of 4.5.
• MBAS C12-18 mid branched alkyl sulphate surfactant with an average branching of 1.5 methyl or ethyl branching groups
• MES x-Sulpho methylester of C18 fatty acid APA C8-10 amido propyl dimethyl amine.
• Na-)2(A1 ⁇ 2Si ⁇ 2)i2- 27H2O having a primary particle size in the range from 0.1 to 10 micrometers (Weight expressed on an anhydrous basis).
• Citric Anhydrous citric acid Citric Anhydrous citric acid.
• MA/AA 1 Random copolymer of 6:4 acrylate/maleate, average molecular weight about 10,000.
• Polycarboxylate Copolymer comprising mixture of carboxylated monomers such as acrylate, maleate and methyacrylate with a MW ranging between 2,000-80,000 such as
• Sokolan commercially available from BASF, being a copolymer of acrylic acid, MW4.500.
• NOBS Nonanoyloxybenzene sulfonate in the form of the sodium salt.
• NACA-OBS (6-nonamidocaproyl) oxybenzene sulfonate.
• LOBS Dodecanoyloxybenzene sulfonate ih the form of the Na salt.
• DOBA Dodecanoylbenzoic acid DTPA Diethylene triamine pentaacetic acid. HEDP 1 ,1-hydroxyethane diphosphonic acid. DETPMP Diethyitriamine penta (methylene) phosphonate, marketed by Monsanto under the Trade name Dequest
• EDDS Ethylenediamine-N,N'-disuccinic acid, (S,S) isomer in the form of its sodium salt MnTACN Manganese 1 ,4,7-trimethyl-1 ,4,7-triazacyclononane.
• PAAC Pentaamine acetate cobalt(lll) salt PAAC Pentaamine acetate cobalt(lll) salt.
• Paraffin Paraffin oil sold under the tradename Winog 70 by Wintershall.
• Protease Proteolytic enzyme sold under the tradename Savinase, Alcalase by Novo Nordisk A/S, the "protease D” variant with the substitution set N76D/S103A/V104I and the protease described in PCT application Nos. PCT/US98/22588, PCT/US98/22482 and
• PCT/US98/22486 with the amino acid substitution set 1O1 G/103A 1041/159D/232V/236H/245R/248D/252K.
• Amylase Amylolytic enzyme sold under the tradename Termamyl ® and Duramyl® available from Novo Nordisk A/S and those variants having improved thermal stability with amino acid deletions R181 * + G182 * or T183 * + G184 * as described in W095/35382.
• Lipase Lipolytic enzyme sold under the tradename Lipolase, Lipoiase Ultra by Novo Nordisk A/S and Lipomax by Gist- Brocades.
• PVNO Polyvinylpyridine-N-Oxide with an average molecular weight of 50,000.
• PVPVI Copolymer of vinylimidazole and vinylpyrrolidone with an average molecular weight of 20,000.
• Brightener 1 Disodium 4,4'-bis(2-sulphostyryl)biphenyl.
• Brightener 2 Disodium 4,4'-bis(4-anilino-6-morpholino-1.3.5-triazin-2- yl) stilbene-2:2'-disulfonate.
• Brightener 3 Disodium 4,4'bis (4,6-dianilino-1 ,3,5-triazin-2-yl)amino stilbene-2-2'-disulfonate.
• Silicone antifoam Polydimethylsiloxane foam controller with siloxane- oxyalkylene copolymer as dispersing agent with a ratio of said foam controller to said dispersing agent of 10:1 to
• SRP 1 Anionically end capped poly esters.
• SRP 2 Soil Release Polymer selected from 1 ) Non-cotton soil release polymer according to U.S. Patent 5,415,807,
• PEI Polyethyleneimine with an average molecular weight of between 600-1800 and an average ethoxylation degree of 7-20 ethyleneoxy residues per nitrogen.
• HMWPEO High molecular weight polyethylene oxide.
• Example 1 The following granular laundry detergent compositions were prepared according to the present invention :
• Brightener 1 or 2 or 3 0.05 0.05 0.05 - 0.05
• Brightener 1 or 2 or 3 0.2 0.2 0.3 0.1 0.2
• Enzymes (cellulase, amylase, 0.04 0.01 0.02 0.02 0.05 protease and/or lipase)
• ReSI-AMG 1.0 0.05 0.002 0.001 0.05
• Brightener 1 0.2 0.2 0.2 0.2 0.2
• Brightener 1 0.05 - - 0.05
• Zeolite A 10.0 18.0 14.0 12.0 10.0 10.0
• Brightener 2 0.3 0.2 0.3 - 0.1 0.3
• Brightener 1 0.2 0.2 0.2 0.2 0.2
• Enzymes (amylase, cellulase - - - - 0.05 0.04 0.05 and/or protease) I II III IV IV V VI
• Enzymes (amylase, cellulase, - 0.025 - 0.04 protease and/or lipase)
• laundry detergent compositions in the form of a tablet or granular formulation were prepared according to the present invention :
• Enzymes (amylase, cellulase, 0.04 0.04 0.01 0.02 0.02 0.03 protease and/or lipase)
• PVPVI/PVNO brightener, photo-bleach, speckles,.
• laundry detergent compositions were prepared according to the present invention :
• Enzymes (amylase, cellulase, - - - - 0.045 protease and/or lipase)
• PVP PVPVI/PVNO
• speckles brightener, photo-bleach,...
• liquid laundry detergent compositions were prepared according to the present invention :
• Brightener 3 0.20 0.15 0.10 0.05 - 0.05
• non-aqueous liquid detergent compositions were prepared in accordance with the present invention :
• Titanium Dioxide 0.5 0.5 0.5
• Example 11 The following laundry detergent compositions in the form of a tablet were prepared according to the present invention :
• a detergent base powder of composition I was prepared as follows: all the particulate material of base composition I were mixed together in a mixing drum to form a homogenous particulate mixture. During this mixing, the spray- ons were carried out.
• Tablets were then made the following way: 50g of the matrix was introduced into a mould of circular shape with a diameter of 5.5 cm, and compressed to give a tablet tensile strength (or diametrical fracture stress) of 10kPa.
• iii) The tablets were then dipped in a bath comprising 90 parts of sebacic acid and 10 parts per weight of Nymcel-ZSB16TM by Metsa Serla at 140 °C.
• the time the tablet was dipped in the heated bath was adjusted to allow application of 4g of the bath mixture.
• the tablet was then left to cool at ambient temperature of 25°C for 24 hours.
• the tensile strength of the coated tablet was increased to a tensile strength of 30 kPa.
• Anionic agglomerates 1 (40% anionic, 27% zeolite and 33% 21.5 carbonate)
• Anionic agglomerates 2 (40% anionic, 28% zeolite and 32% 13.0 carbonate)
• Bleach activator agglomerates (81 % TAED, 17% acrylic/maleic 5.5 copolymer (acid form) and 2% water)
• EDDS/Sulphate particle (58% of EDDS, 23% of sulphate and 19% 0.5 water)
• Photoactivated bleach (Zinc phthalocyanine sulphonate 10% active) 0.02
• Binder spray-on system (25% of Lutensit K-HD 96;75% by weight of 4.0 PEG)
• laundry detergent compositions in the form of a tablet were prepared according to the present invention :
• Brightener 1 or 2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
• laundry bar detergent compositions were prepared according to the present invention (Levels are given in parts per weight, enzymes are expressed in pure enzyme) :
• the following rinse added fabric softener composition was prepared according to the present invention :
• ReSI-AMG 1.0 0.2 0.1 0.01 0.01
• the following tablet detergent compositions were prepared according to the present invention by compression of a granular dishwashing detergent composition at a pressure of 13KN/crr)2 using a standard 12 head rotary press:
• Nonionic 1.5 2.0 2.0 2.2 1.0 4.2 4.0 6.5
• liquid dishwashing detergent compositions of density 1.40Kg/L were prepared according to the present invention :

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• 1999
  • 1999-07-01 EP EP99870139A patent/EP1065261A3/de not_active Withdrawn
• 2000
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