CA2184362A1 - Detergent composition - Google Patents
Detergent compositionInfo
- Publication number
- CA2184362A1 CA2184362A1 CA 2184362 CA2184362A CA2184362A1 CA 2184362 A1 CA2184362 A1 CA 2184362A1 CA 2184362 CA2184362 CA 2184362 CA 2184362 A CA2184362 A CA 2184362A CA 2184362 A1 CA2184362 A1 CA 2184362A1
- Authority
- CA
- Canada
- Prior art keywords
- detergent composition
- composition according
- zeolite
- detergent
- zeolite map
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/128—Aluminium silicates, e.g. zeolites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0021—Dye-stain or dye-transfer inhibiting 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
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0063—Photo- activating compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/168—Organometallic compounds or orgometallic complexes
-
- 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
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3776—Heterocyclic compounds, e.g. lactam
-
- 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
- C11D3/37—Polymers
- C11D3/3792—Amine oxide containing polymers
-
- 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
- C11D3/40—Dyes ; Pigments
- C11D3/42—Brightening agents ; Blueing agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Detergent compositions are disclosed comprising a surfactant, a detergency builder comprising zeolite P having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP); and one or more additional components selected from anionic optical brighteners which are stilbene derivatives; specific polymer dye transfer inhibition agents; and an oxidative catalyst. The compositions may be of any suitable physical form, preferably granular or liquid. Methods of making the compositions are disclosed.
Description
W095/27028 ~ 2 1 8 4 3 6 2 PCT~S95/02699 TITLE: DETERGENT COMPOSITION
The present invention relates to a detergent composition and, in particular, to improvements in the detergency performance of laundry detergent compositions comprising zeolites as a sequestering agent for water hardness.
Detergent compositions for heavy-duty fabric washing conventionally contain detergency builders which lower the conc~ntration of calcium and magnesium water hardness ions in the wash liquor and thereby provide good detergency effect in both hard and soft water.
Conventionally, inorganic phosphates, such as sodium tripolyphosphate, have been used as builders for laundry detergents. More recently, alkali metal aluminosilicate ion-exchangers, particularly crystalline sodium aluminosilicate zeolite A, have been proposed as replacements for the inorganic phosphates.
For example, EP 21 491A (Procter & Gamble) discloses detergent compositions containing a building system which includes zeolite A, X or P (B) or a W O 95/27028 . .~ 9 4 3 6 2 PCTrUS95/02699 mixture thereof. EP 384070A (Unilever) discloses specific zeolite P materials having an especially low silicon to aluminium ratio not greater than 1.33 (hereinafter referred to as zeolite MAP) and describes its use as a- detergency builder. To date, however, zeolite A is the preferred aluminosilicate detergency builder in co~m~rcially available products.
EP 384070 (Unilever) suggests that zeolite MAP has certain advantages over zeolite A as a detergency builder. ~owever, we have found that compositions cont~ining zeolite MAP as detergency builder can result in poorer fabric whiteness, as cQ~red with compositions cont~ining zeolite A as detergency builder, in w~s~ing loads containing a mixture of coloured and white fabrics.
Surprisingly, we have found that zeolite MAP
gives good fabric whiteness performance when used in combination with specific fabric whitening agents and/or specific polymeric materials and/or with an oxidative catalyst.
Thus, the present invention provides a detergent composition comprising:
a) a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof:
b) a detergency builder comprising zeolite P
wo gs/27028 ~ 2 1 8 ~ 3 6 2 PCT/US95/02699 having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP); and c) one or more additional components selected f rom ( i ) anionic optical brighteners which are stilbene derivatives;
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o 1 yv i ny 1 o x a z o 1 idones, polyvinylimidazoles or mixtures thereof; and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
The detergent composition according to the invention may be of any physical type, for example powders, liguids and gels. However, granular and liquid compositions are preferred.
Preferably the detergent composition according to the present invention contains no bleach.
The detergent composition according to the invention contains, as an essential ingredient, one or more surfactants selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof. Such surfactants are well known and described in the literature, for WO 95/27028 : 2 1 8 4 3 6 2 PCT/US95/02699 example, in "Surface-Active Agents and Detergents", Volumes I and II by Schwartz, Perry and Berch.
Examples of suitable anionic surfactants include alkylbenzene sulphonates, particularly sodium linear alkylbenzene sulphonates having an alkyl chain length of C8-C15; C12-C15 primary alkyl sulphates;
olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
Sodium salts are generally preferred.
Examples of suitable nonionic surfactants include alkoxylated adducts of fatty alcohols cont~;~ing an average of from 3 to 10 alkylene oxide groups per molecule.
A particularly preferred aliphatic alcohol ethoxylate is a primary alcohol having an average of from 12 to 15 carbon atoms in the alkyl chain condensed with an average of from five to seven ethoxy groups per mole of alcohol.
Other examples of suitable alkoxylated adducts of fatty alcohols are Synperonic A3 (ex ICI), which is a C13-C15 alcohol with about three ethylene oxide groups per molecule and Empilan KB3 (ex Marchon), which is lauric alcohol 3EO. Mixtures of such ethoxylated alcohols are also contemplated by the present invention.
Another class of nonionic surfactants comprises alXyl polyglucoside compounds of general w095/27028 ~ ~ 2 1 ~ 4 3 6 2 PcT~sgslo26ss formula R0(cnH2nO)tzx wherein Z is a moiety derived from glucose; R is a saturated hydrophobic alkyl group that contains from 12 to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3;
x is from 1.1 to 4, the compounds including less than 10% unreacted fatty alcohol and less than 50% short chain alkyl polyglucosides. Compounds of this type and their use in detergent compositions are disclosed in EP-B 0070074, 0070077, 0075996 and 0094118.
The surfactant will generally be included in the detergent composition in an amount of 5 to 60% by weight, preferably 5 to 40% by weight and most preferably from 10 to 2S% by weight of the composition.
According to the present invention the detergency builder system is based on zeolite MAP, optionally in conjunction with one or more supplementary builders. The amount of zeolite MAP
employed may range, for example, from 5 to 60 wt%, more preferably from 15 to 40 wt%.
Zeolite MAP is described in EP 384070A
(Unilever). It is defined as an alkali metal alumino-silicate of the zeolite P type-having a silicon to aluminium ratio not greater than 1.33, preferably within the range from 0.9 to 1.33 and more preferably within the range of from 0.9 to 1.2.
woss/27028 5 ~1~ 4 3 6 2 PCT~S95/02699 Of particular interest is zeolite MAP having a silicon to aluminium ratio not greater than 1.15 and, more particularly, not greater than 1.07.
Zeolite P having a Si:Al ratio of 1.33 or less may be prepared by the following steps:
ti) mixing together a sodium aluminate having a mole ratio Na20:A1203 within the range of from 1.4 to 2.0 and a sodium silicate having a mole ratio SiO2:Na20 within the range of from 0.8 to 3.4 with vigorous stirring at a temperature within the range of from 25-C
to boiling point usually 95-C, to give a gel having the following composition:
A12O3: (1.75-3.5) SiO2 : (2.3-7.5) Na20 :P (80-450)H20:
(ii) ageing the gel composition for 0.5 to 10 hours, preferably- 2 to 5 hours, at a temperature within the range of from 70-C to boiling point, usually to 95-C, with sufficient stirring to maintain any solids present in suspension;
(iii) separating the crystalline sodium aluminosilicate thus formed, washing to a pH within the range of from 10 to 12.5, and drying, preferably at a temperature not eYc~e~ing 150-C, to a moisture content of not less than 5 wt%.
Preferred drying methods are spray-drying and flash drying. It appears that oven drying at too high a temperature may adversely affect the calcium binding capacity of the product under certain WO 95/27028 ` ~ ` 2 1 8 4 3 6 2 PCT/US95/02699 circumstances.
Commercial sodium metasilicate pentahydrate dissolved in water and commercial sodium silicate solution (waterglass) are both suitable silica sources for the production of zeolite P in accordance with the invention. The reactants may be added together in any order either rapidly or slowly. Rapid addition at ambient temperature, and slow addition at elevated temperature (90-95-C) both give the desired product.
Vigorous stirring of the gel during the addition of the reactants, and at least moderate stirring during the subsequent ageing step, however, appear to be essential for the formation of pure zeolite P. In the absence of stirring, various mixtures of crystalline and amorphous materials may be obtained.
Zeolite MAP generally has a calcium binding capacity of at least 150 mg CaO per g of anhydrous aluminosilicate, as measured by the st~ d method described in GB 1473201 (Henkel). The calcium binding capacity is normally 160 mg CaO/g and may be as high 170 mg CaO/g.
Although zeolite MAP like other zeolites contains water of hydration, for the purposes of the present invention amounts and percentages of zeolite are expressed in terms of the notional anhydrous material. The amount of water present in hydrated W095/27028 2 ~ B 4 3 6 2 PCT~S95/02699 zeolite MAP at ambient temperature and humidity is generally about 20 wt%.
The zeolite MAP used in the present invention preferably has a particle size d50 of 1 to 5 micrometres, for example 2.25 to 5 micrometres, particularly 2.75 to 5 micrometres.
The quantity "d50" indicates that 50 wt% of the particles have a diameter smaller than that figure.
According to the invention zeolite MAP may be the sole builder component or it may be used in combination with an organic or inorganic cobuilder.
According to a particular embodiment of the invention, zeolite MAP is the principal builder component.
Suitable organic cobuilders can be monomeric or polymeric carboxylates such as citrates or polymers of acrylic, methacrylic and/or maleic acids in neutralised form. Suitable inorganic cobuilders include carbonates and amorphous and crystalline lamellar sodium silicates.
Suitable silicates have the composition:
NaMSix02x+l , YH2 where M is sodium or hydrogen, preferably sodium;
x is a number from 1.9 to 4; and y is a number from 0 to 20. Such materials are described in US Patents No.
4664839; No. 4728443 and No. 4820439 tHo chct AG).
WO 9S/27028 ` ~ ` PCT/US95/02699 Especially preferred are compounds in which x = 2 and y = O. The synthetic material is commercially available from Hoechst AG as S-Na2 Si2O5 (SKS6) and is described - in US Patent No. 4664830.
The total amount of detergency builder in the granular composition ranges from 5 to 80 wt%, more preferably from 15 to 60 wt% and most preferably from 10 to 45 wt%.
According to the present invention the detergent composition comprises one or more additional components selected from (i) anionic optical brighteners which are N-bonded stilbene derivatives;
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o 1 y v i n y 1 o x a z o 1 i d o n e s , polyvinylimidazoles or mixtures thereof: and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
Examples of suitable anionic optical brighteners are compounds of the formula:
PhRN NHPh N ~ `~ CH=CH~ O N
R S0 ~a R R
l~;
w095l27028 2 1 8 4 3 6 2 PCT~S95/02699 wherein 1. R = diethanolamino and R2 - SO3Na:
2. R - morpholino and R2 = S03Na;
The present invention relates to a detergent composition and, in particular, to improvements in the detergency performance of laundry detergent compositions comprising zeolites as a sequestering agent for water hardness.
Detergent compositions for heavy-duty fabric washing conventionally contain detergency builders which lower the conc~ntration of calcium and magnesium water hardness ions in the wash liquor and thereby provide good detergency effect in both hard and soft water.
Conventionally, inorganic phosphates, such as sodium tripolyphosphate, have been used as builders for laundry detergents. More recently, alkali metal aluminosilicate ion-exchangers, particularly crystalline sodium aluminosilicate zeolite A, have been proposed as replacements for the inorganic phosphates.
For example, EP 21 491A (Procter & Gamble) discloses detergent compositions containing a building system which includes zeolite A, X or P (B) or a W O 95/27028 . .~ 9 4 3 6 2 PCTrUS95/02699 mixture thereof. EP 384070A (Unilever) discloses specific zeolite P materials having an especially low silicon to aluminium ratio not greater than 1.33 (hereinafter referred to as zeolite MAP) and describes its use as a- detergency builder. To date, however, zeolite A is the preferred aluminosilicate detergency builder in co~m~rcially available products.
EP 384070 (Unilever) suggests that zeolite MAP has certain advantages over zeolite A as a detergency builder. ~owever, we have found that compositions cont~ining zeolite MAP as detergency builder can result in poorer fabric whiteness, as cQ~red with compositions cont~ining zeolite A as detergency builder, in w~s~ing loads containing a mixture of coloured and white fabrics.
Surprisingly, we have found that zeolite MAP
gives good fabric whiteness performance when used in combination with specific fabric whitening agents and/or specific polymeric materials and/or with an oxidative catalyst.
Thus, the present invention provides a detergent composition comprising:
a) a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof:
b) a detergency builder comprising zeolite P
wo gs/27028 ~ 2 1 8 ~ 3 6 2 PCT/US95/02699 having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP); and c) one or more additional components selected f rom ( i ) anionic optical brighteners which are stilbene derivatives;
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o 1 yv i ny 1 o x a z o 1 idones, polyvinylimidazoles or mixtures thereof; and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
The detergent composition according to the invention may be of any physical type, for example powders, liguids and gels. However, granular and liquid compositions are preferred.
Preferably the detergent composition according to the present invention contains no bleach.
The detergent composition according to the invention contains, as an essential ingredient, one or more surfactants selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof. Such surfactants are well known and described in the literature, for WO 95/27028 : 2 1 8 4 3 6 2 PCT/US95/02699 example, in "Surface-Active Agents and Detergents", Volumes I and II by Schwartz, Perry and Berch.
Examples of suitable anionic surfactants include alkylbenzene sulphonates, particularly sodium linear alkylbenzene sulphonates having an alkyl chain length of C8-C15; C12-C15 primary alkyl sulphates;
olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
Sodium salts are generally preferred.
Examples of suitable nonionic surfactants include alkoxylated adducts of fatty alcohols cont~;~ing an average of from 3 to 10 alkylene oxide groups per molecule.
A particularly preferred aliphatic alcohol ethoxylate is a primary alcohol having an average of from 12 to 15 carbon atoms in the alkyl chain condensed with an average of from five to seven ethoxy groups per mole of alcohol.
Other examples of suitable alkoxylated adducts of fatty alcohols are Synperonic A3 (ex ICI), which is a C13-C15 alcohol with about three ethylene oxide groups per molecule and Empilan KB3 (ex Marchon), which is lauric alcohol 3EO. Mixtures of such ethoxylated alcohols are also contemplated by the present invention.
Another class of nonionic surfactants comprises alXyl polyglucoside compounds of general w095/27028 ~ ~ 2 1 ~ 4 3 6 2 PcT~sgslo26ss formula R0(cnH2nO)tzx wherein Z is a moiety derived from glucose; R is a saturated hydrophobic alkyl group that contains from 12 to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3;
x is from 1.1 to 4, the compounds including less than 10% unreacted fatty alcohol and less than 50% short chain alkyl polyglucosides. Compounds of this type and their use in detergent compositions are disclosed in EP-B 0070074, 0070077, 0075996 and 0094118.
The surfactant will generally be included in the detergent composition in an amount of 5 to 60% by weight, preferably 5 to 40% by weight and most preferably from 10 to 2S% by weight of the composition.
According to the present invention the detergency builder system is based on zeolite MAP, optionally in conjunction with one or more supplementary builders. The amount of zeolite MAP
employed may range, for example, from 5 to 60 wt%, more preferably from 15 to 40 wt%.
Zeolite MAP is described in EP 384070A
(Unilever). It is defined as an alkali metal alumino-silicate of the zeolite P type-having a silicon to aluminium ratio not greater than 1.33, preferably within the range from 0.9 to 1.33 and more preferably within the range of from 0.9 to 1.2.
woss/27028 5 ~1~ 4 3 6 2 PCT~S95/02699 Of particular interest is zeolite MAP having a silicon to aluminium ratio not greater than 1.15 and, more particularly, not greater than 1.07.
Zeolite P having a Si:Al ratio of 1.33 or less may be prepared by the following steps:
ti) mixing together a sodium aluminate having a mole ratio Na20:A1203 within the range of from 1.4 to 2.0 and a sodium silicate having a mole ratio SiO2:Na20 within the range of from 0.8 to 3.4 with vigorous stirring at a temperature within the range of from 25-C
to boiling point usually 95-C, to give a gel having the following composition:
A12O3: (1.75-3.5) SiO2 : (2.3-7.5) Na20 :P (80-450)H20:
(ii) ageing the gel composition for 0.5 to 10 hours, preferably- 2 to 5 hours, at a temperature within the range of from 70-C to boiling point, usually to 95-C, with sufficient stirring to maintain any solids present in suspension;
(iii) separating the crystalline sodium aluminosilicate thus formed, washing to a pH within the range of from 10 to 12.5, and drying, preferably at a temperature not eYc~e~ing 150-C, to a moisture content of not less than 5 wt%.
Preferred drying methods are spray-drying and flash drying. It appears that oven drying at too high a temperature may adversely affect the calcium binding capacity of the product under certain WO 95/27028 ` ~ ` 2 1 8 4 3 6 2 PCT/US95/02699 circumstances.
Commercial sodium metasilicate pentahydrate dissolved in water and commercial sodium silicate solution (waterglass) are both suitable silica sources for the production of zeolite P in accordance with the invention. The reactants may be added together in any order either rapidly or slowly. Rapid addition at ambient temperature, and slow addition at elevated temperature (90-95-C) both give the desired product.
Vigorous stirring of the gel during the addition of the reactants, and at least moderate stirring during the subsequent ageing step, however, appear to be essential for the formation of pure zeolite P. In the absence of stirring, various mixtures of crystalline and amorphous materials may be obtained.
Zeolite MAP generally has a calcium binding capacity of at least 150 mg CaO per g of anhydrous aluminosilicate, as measured by the st~ d method described in GB 1473201 (Henkel). The calcium binding capacity is normally 160 mg CaO/g and may be as high 170 mg CaO/g.
Although zeolite MAP like other zeolites contains water of hydration, for the purposes of the present invention amounts and percentages of zeolite are expressed in terms of the notional anhydrous material. The amount of water present in hydrated W095/27028 2 ~ B 4 3 6 2 PCT~S95/02699 zeolite MAP at ambient temperature and humidity is generally about 20 wt%.
The zeolite MAP used in the present invention preferably has a particle size d50 of 1 to 5 micrometres, for example 2.25 to 5 micrometres, particularly 2.75 to 5 micrometres.
The quantity "d50" indicates that 50 wt% of the particles have a diameter smaller than that figure.
According to the invention zeolite MAP may be the sole builder component or it may be used in combination with an organic or inorganic cobuilder.
According to a particular embodiment of the invention, zeolite MAP is the principal builder component.
Suitable organic cobuilders can be monomeric or polymeric carboxylates such as citrates or polymers of acrylic, methacrylic and/or maleic acids in neutralised form. Suitable inorganic cobuilders include carbonates and amorphous and crystalline lamellar sodium silicates.
Suitable silicates have the composition:
NaMSix02x+l , YH2 where M is sodium or hydrogen, preferably sodium;
x is a number from 1.9 to 4; and y is a number from 0 to 20. Such materials are described in US Patents No.
4664839; No. 4728443 and No. 4820439 tHo chct AG).
WO 9S/27028 ` ~ ` PCT/US95/02699 Especially preferred are compounds in which x = 2 and y = O. The synthetic material is commercially available from Hoechst AG as S-Na2 Si2O5 (SKS6) and is described - in US Patent No. 4664830.
The total amount of detergency builder in the granular composition ranges from 5 to 80 wt%, more preferably from 15 to 60 wt% and most preferably from 10 to 45 wt%.
According to the present invention the detergent composition comprises one or more additional components selected from (i) anionic optical brighteners which are N-bonded stilbene derivatives;
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o 1 y v i n y 1 o x a z o 1 i d o n e s , polyvinylimidazoles or mixtures thereof: and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
Examples of suitable anionic optical brighteners are compounds of the formula:
PhRN NHPh N ~ `~ CH=CH~ O N
R S0 ~a R R
l~;
w095l27028 2 1 8 4 3 6 2 PCT~S95/02699 wherein 1. R = diethanolamino and R2 - SO3Na:
2. R - morpholino and R2 = S03Na;
3. R = anilino, R2 = SO3Na or H; and 4. R = l-methyl-2-hydroxethylamino, R = S03Na.
Examples of less preferred anionic optical brighteners include compounds of the formula:
`b-- 3~ CN Ca~
so3~a SO ~a 6. '\~ ~ca=ca~
so Na Compounds of formulae 1-4 above are preferred. The optical brightener is suitably incorporated in the co~position in an amount of from 0.01 to 5.0 wt%, preferably in an amount of from 0.05 to 0.3 wt%.
Alternatively, or in addition, the detergent composition according to the invention includes a polymer. The polymers act as dye-transfer inhibiting agents by inhibiting the transfer of dyes from coloured fabrics onto fabrics washed therewith. These polymers WO g5/27028 . .~ , ~ PCTIUS95/02699 have the ability to co~plex 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.
Suitable polymers are polyamine N-oxide polymers copolymers of N-vinylpyrrolidone and N-vinylimidazole, poiyvinylpyrrolidone polymers, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
The detergent composition may suitably comprise from 0.001 to 10 wt%, preferably from 0.01 to 2 wt% and most preferably from 0.05 to 1 wt% of the polymer.
Suitable polymers for use in the detergent composition according to the invention are described in detail in the following.
a) PolYamine N-oxide polYmers The polymer N-oxide polymers suitable for use may contain units having the following structure formula :
: I
(I) Ax R
wherein P is a polymerisable unit, wherein the R-N-o group can be attached to or wherein the R-N-O group forms part of the polymerisable unit or a combination of both.
WO95/27028 -- 2 1 ~3 4 3 6 2 PCT/US95/02699 o o o NC, CO, C, -O-, -S-, -N- ; x is O or l;
R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group is part of these groups.
The N-O group can be represented by the following general structure :
O O
(Rl)x -N- (R2)y =N- (Rl)x (R3)z wherein Rl, R2, and R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups or combinations thereof, x or/and y or/and z is O or 1 and wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group forms part of these groups.
The N-O group can be part of the - polymerisable unit (P) or can be attached to the _ polymeric backbone or a combination of both.
Suitabl-e polyamine N-oxides wherein the N-O
group forms part of the polymerisable unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic or heterocyclic groups.
W095/27028 . ~ . 2 1 ~4362 PCTIUS95/02699 One class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein the nitrogen of the N-O groups 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, aridine and derivatives thereof.
Another class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein the nitrogen of the N-O group is attached to the R-group.
Other suitable polyamine N-oxides are the polyamine oxides wherein the N-O- group is attached to the polymerisable unit. Preferred classes of these polyamine N-oxides are the polyamine N-oxides having the general formula (I) wherein R is an aromatic, heterocyclic or alicyclic group wherein the nitrogen of the N-O 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-O functional group is attached to said R groups.
Examples of these cIasses are polyamine oxides wherein the R groups can be aromatic such as WO95127028 ~ `~ 2 1 8436~ PCrlUS95/02699 phenyl.
Any polymer backbone can be used as long as the amine oxide polymer formed is water-soluble and has dye transfer inhibiting properties. Examples of suitabl-e polymeric backbones are polyvinyls, polyakylenes, 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 10:1000000. However the amount of amine oxide groups present in the polyamine oxide polymer can be varied by appropriate copolymerisation or by appropriate degree of N-oxidation. Preferably, 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 encomp~cs 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 < 10, 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.
w095/27028 ` .; 2 1 8 4 3 6 2 PCT~SgS/02699 Typically, the average molecular weight is within the range of 500 to 100,000; preferably from 1,000 to 50,000, more preferably from 2,000 to 30,000, most preferably from 3,000 to 20,000.
According to a particular aspect of the invention the detergent composition comprises from 0.01 to 1.5 wt% of polyvinylpyridine N-oxide.
b) Co~olYmers of N-vinvlDvrrolidone and N-vinvlimidazole The N-vinylimidazole-N-vinylpyrrolidone polymers used in the present invention have an average molecular weight range from 5,000 - 1,000,000, preferably from 20,000 - 200,000.
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 Methods of Polymer Characterization".
Highly preferred N-vinylimidazole-N-vinylpyrrolidone copolymers have an average molecular W O 95/27028 ..! ~:- 2 1 8 4 3 6 2 PCTrUS95102699 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 N-vinylimidazole-N-vinylpyrrolidone copolymers characterised 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.
According to a particular aspect of the invention the detergent composition comprises from 0.01 to 1.5 wt% of polyvi~ylpyrrolidone-polyvinylimidazole copolymer.
c) Polwinyl~rrolidone The detergent compositions of the present invention may also utilize polyvinylpyrrolidone ("PVP"
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. Suitable polyvinylpyrrolidones are commercially available from ISP Corporation, New York, W O 95/27028 ~ 2 1 8 ~ 3 6 2 PCTrUS95/02699 NY and Montreal, Canada under the product names PVP K-(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). PVP K-15 is also available from ISP Corporation. Other suitable polyvinylpyrrolidones which are commercially available from ~ASF Corporation 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 are also suitable. According to a particular aspect of the invention the detergent composition comprises from 0.05 to 3.0 wt%, preferably from 0.1 to 0.3 wt% of PVP.
d) Polw inYloxazolidone The detergent compositions of the present invention may also utilize polyvinyloxazolidone as a polymeric dye transfer inhibiting agent. Said polyvinyloxazolidones 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 ,5000 to about 50,000, and most preferably from about 5,000 to about 15,000.
e) Pol win~limidazole The detergent compositions of the present invention may also utilize polyvinylimidazole as polymeric dye W095/27028 ~ ~ 2 1 8 4 3 6 2 PCT~S95/02699 transfer inhibiting agent. Said polyvinylimidazoles have an average MV about 2,50o to about 400,OOO, 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 composition according to the invention may include the conventional detergent materials. However, preferably the composition is free of bleach. Other optional materials which may be present include, for example, enzymes, fluorescers, antiredeposition agents, inorganic salts such as sodium sulphate, lather control agents, fabric softening agents, pigments, coloured speckles and perfumes.
The detergent compositions of the invention may be prepared by any suitable method. The particulate detergent compositions are suitably prepared by any tower (spray-drying) or non-tower process.
In processes based around a spray-drying tower, a base powder is first prepared by spray-drying a slurry and then other components unsuitable for processing via the slurry can be sprayed on or admixed (postdosed).
The zeolite MAP is suitable for inclusion in the slurry, although it may be advantageous for processing reasons for part of the zeolite MAP to be incorporated post-tower.
Woss/27o28 ~ 2 ~ ~ 4 3 6 2 PcT~s95lo26ss Alternatively, particulate detergent compositions in accordance with the invention may be prepared by wholly non-tower processes such as granulation.
The granular detergent compositions of the invention may be prepared to any suitable bulk density.
The compositions preferably have a bulk density of at least 400 g/l preferably at least 550 g/l, most preferably at least 700 g/l and, with particular preference at least 800 g/l.
The benefits of the present invention are particularly evident in powders of high bulk density, for example, of 700 g/l or above. Such powders may be prepared either by post-tower densification of spray-dried powder, or by wholly non-tower methods such as dry mixing and granulation; in both cases a high-speed mixer/granulator may advantageously be used. Processes using high-speed mixer/granulators are disclosed, for example, in EP340 013A, EP 367 339A, EP 390 251A and EP
420 317A (Unilever).
According to one aspect of the invention there is provided a qranular detergent composition comprising:
from 5 to 60 wt%, preferably 5 to 40 wt%, of component (a) defined hereinbefore;
from 10 to 80 wt% of component (b) defined hereinbefore: and WO 95127028 - : 2 ~ 8 4 3 6 2 PCT/US9S102699 from 0.001 to 10 wt% of component (c) defined hereinbefore.
According to another embodiment of the invention there is provided a liquid detergent composition, preferably a heavy duty liguid detergent composition, comprising from 5 to 60 wt% of component (a) above and from 5 to 40 wt% of component (b) above and from 0.001 to 10 wt% of component (c) above.
According to this embodiment the liquid detergent composition may be of any convenient physical form which may be aqueous or anhydrous. The term "liquid" used herein includes partly viscous formulations such as gels. The liquid detergent composition generally has a pH of from 6.5 to 10.5.
The total amount of detergency builder in the liquid composition is preferably from 5 to 70% of the total liquid composition.
The following Examples provide illustrative detergent compositions according to the present invention.
The following abbreviations have been used:
LAS - linear C12 alkyl benzene sulphonate AS - sodium alkyl sulphate TAS - sodium tallow alcohol sulphate 45E7 _ C14_15 primary alcohol condensed with an average of 7 moles of ethylene oxide 25E3 - C12_15 primary alcohol condensed with Wo95/27028 ~ 2 1 8 4 3 6 2 PcT~s9slo26ss an average of 3 moles of ethylene oxide PC3 - percarbonate PBl - perborate monohydrate PB4 - perborate tetrahydrate TAED - Tetraacetyl ethylene diamine PVP - polyvinyl pyrrolidone PYNO - polyvinylpyridine N oxide PVPVl - polyvinylpyrrolidone-polyvinylimidazole copolymer MnPC - manganese phthalocyanintetrasulphonate.
EDTMP - ethylene diamine tetramethylene phosphonate CMC - carboxymethyl cellulose Brighteners 1, 2 and 3 correspond to the compounds of formulae 1, 2 and 3 respectively as defined in the description.
wo gsn7028 2 1 13 4 3 ~ 2 PcTluS9!j/02699 ExamDles LAS _ 7 _ 5 C24 AS - - 5.6 3 TAS _ 5 Glucamide - - - 5 Zeolite MAP 38 32 40 35 Na SKS-6 5 citrate 10 12 - 10 carbonate 7 7 10 10 silicate (2.0 ratio) - 6 5 5 PBl - 10 PB4 - . 5 - 2 TAED 2.5 3 Protease _ (Alcalase) 2.0 2.0 2.0 2.0 Amylase - .
(Termamyl) 0.4 0.4 0.4 0.4 Lipase (Lipolase) 0.4 0.4 0.4 0.4 PVP 1. 0 W095l27028 2 1 ~ 4 3 6 2 PCT~S95/026ss PVNO _ 0.5 PVPVI - - 0.5 MnPC - - - 0.2 EDTMP 0.1 0.2 0.1 0.1 CMC . 0.8 0~6 0.8 0.8 Suds Suppressor Brightener 1 - 0.2 2 0.2 - 0.2 3 - - - 0.2 Moisture, sulphate and miscellaneous 6.6 4.727.0 15.9
Examples of less preferred anionic optical brighteners include compounds of the formula:
`b-- 3~ CN Ca~
so3~a SO ~a 6. '\~ ~ca=ca~
so Na Compounds of formulae 1-4 above are preferred. The optical brightener is suitably incorporated in the co~position in an amount of from 0.01 to 5.0 wt%, preferably in an amount of from 0.05 to 0.3 wt%.
Alternatively, or in addition, the detergent composition according to the invention includes a polymer. The polymers act as dye-transfer inhibiting agents by inhibiting the transfer of dyes from coloured fabrics onto fabrics washed therewith. These polymers WO g5/27028 . .~ , ~ PCTIUS95/02699 have the ability to co~plex 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.
Suitable polymers are polyamine N-oxide polymers copolymers of N-vinylpyrrolidone and N-vinylimidazole, poiyvinylpyrrolidone polymers, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
The detergent composition may suitably comprise from 0.001 to 10 wt%, preferably from 0.01 to 2 wt% and most preferably from 0.05 to 1 wt% of the polymer.
Suitable polymers for use in the detergent composition according to the invention are described in detail in the following.
a) PolYamine N-oxide polYmers The polymer N-oxide polymers suitable for use may contain units having the following structure formula :
: I
(I) Ax R
wherein P is a polymerisable unit, wherein the R-N-o group can be attached to or wherein the R-N-O group forms part of the polymerisable unit or a combination of both.
WO95/27028 -- 2 1 ~3 4 3 6 2 PCT/US95/02699 o o o NC, CO, C, -O-, -S-, -N- ; x is O or l;
R are aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group is part of these groups.
The N-O group can be represented by the following general structure :
O O
(Rl)x -N- (R2)y =N- (Rl)x (R3)z wherein Rl, R2, and R3 are aliphatic groups, aromatic, heterocyclic or alicyclic groups or combinations thereof, x or/and y or/and z is O or 1 and wherein the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group forms part of these groups.
The N-O group can be part of the - polymerisable unit (P) or can be attached to the _ polymeric backbone or a combination of both.
Suitabl-e polyamine N-oxides wherein the N-O
group forms part of the polymerisable unit comprise polyamine N-oxides wherein R is selected from aliphatic, aromatic, alicyclic or heterocyclic groups.
W095/27028 . ~ . 2 1 ~4362 PCTIUS95/02699 One class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein the nitrogen of the N-O groups 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, aridine and derivatives thereof.
Another class of said polyamine N-oxides comprises the group of polyamine N-oxides wherein the nitrogen of the N-O group is attached to the R-group.
Other suitable polyamine N-oxides are the polyamine oxides wherein the N-O- group is attached to the polymerisable unit. Preferred classes of these polyamine N-oxides are the polyamine N-oxides having the general formula (I) wherein R is an aromatic, heterocyclic or alicyclic group wherein the nitrogen of the N-O 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-O functional group is attached to said R groups.
Examples of these cIasses are polyamine oxides wherein the R groups can be aromatic such as WO95127028 ~ `~ 2 1 8436~ PCrlUS95/02699 phenyl.
Any polymer backbone can be used as long as the amine oxide polymer formed is water-soluble and has dye transfer inhibiting properties. Examples of suitabl-e polymeric backbones are polyvinyls, polyakylenes, 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 10:1000000. However the amount of amine oxide groups present in the polyamine oxide polymer can be varied by appropriate copolymerisation or by appropriate degree of N-oxidation. Preferably, 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 encomp~cs 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 < 10, 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.
w095/27028 ` .; 2 1 8 4 3 6 2 PCT~SgS/02699 Typically, the average molecular weight is within the range of 500 to 100,000; preferably from 1,000 to 50,000, more preferably from 2,000 to 30,000, most preferably from 3,000 to 20,000.
According to a particular aspect of the invention the detergent composition comprises from 0.01 to 1.5 wt% of polyvinylpyridine N-oxide.
b) Co~olYmers of N-vinvlDvrrolidone and N-vinvlimidazole The N-vinylimidazole-N-vinylpyrrolidone polymers used in the present invention have an average molecular weight range from 5,000 - 1,000,000, preferably from 20,000 - 200,000.
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 Methods of Polymer Characterization".
Highly preferred N-vinylimidazole-N-vinylpyrrolidone copolymers have an average molecular W O 95/27028 ..! ~:- 2 1 8 4 3 6 2 PCTrUS95102699 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 N-vinylimidazole-N-vinylpyrrolidone copolymers characterised 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.
According to a particular aspect of the invention the detergent composition comprises from 0.01 to 1.5 wt% of polyvi~ylpyrrolidone-polyvinylimidazole copolymer.
c) Polwinyl~rrolidone The detergent compositions of the present invention may also utilize polyvinylpyrrolidone ("PVP"
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. Suitable polyvinylpyrrolidones are commercially available from ISP Corporation, New York, W O 95/27028 ~ 2 1 8 ~ 3 6 2 PCTrUS95/02699 NY and Montreal, Canada under the product names PVP K-(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). PVP K-15 is also available from ISP Corporation. Other suitable polyvinylpyrrolidones which are commercially available from ~ASF Corporation 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 are also suitable. According to a particular aspect of the invention the detergent composition comprises from 0.05 to 3.0 wt%, preferably from 0.1 to 0.3 wt% of PVP.
d) Polw inYloxazolidone The detergent compositions of the present invention may also utilize polyvinyloxazolidone as a polymeric dye transfer inhibiting agent. Said polyvinyloxazolidones 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 ,5000 to about 50,000, and most preferably from about 5,000 to about 15,000.
e) Pol win~limidazole The detergent compositions of the present invention may also utilize polyvinylimidazole as polymeric dye W095/27028 ~ ~ 2 1 8 4 3 6 2 PCT~S95/02699 transfer inhibiting agent. Said polyvinylimidazoles have an average MV about 2,50o to about 400,OOO, 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 composition according to the invention may include the conventional detergent materials. However, preferably the composition is free of bleach. Other optional materials which may be present include, for example, enzymes, fluorescers, antiredeposition agents, inorganic salts such as sodium sulphate, lather control agents, fabric softening agents, pigments, coloured speckles and perfumes.
The detergent compositions of the invention may be prepared by any suitable method. The particulate detergent compositions are suitably prepared by any tower (spray-drying) or non-tower process.
In processes based around a spray-drying tower, a base powder is first prepared by spray-drying a slurry and then other components unsuitable for processing via the slurry can be sprayed on or admixed (postdosed).
The zeolite MAP is suitable for inclusion in the slurry, although it may be advantageous for processing reasons for part of the zeolite MAP to be incorporated post-tower.
Woss/27o28 ~ 2 ~ ~ 4 3 6 2 PcT~s95lo26ss Alternatively, particulate detergent compositions in accordance with the invention may be prepared by wholly non-tower processes such as granulation.
The granular detergent compositions of the invention may be prepared to any suitable bulk density.
The compositions preferably have a bulk density of at least 400 g/l preferably at least 550 g/l, most preferably at least 700 g/l and, with particular preference at least 800 g/l.
The benefits of the present invention are particularly evident in powders of high bulk density, for example, of 700 g/l or above. Such powders may be prepared either by post-tower densification of spray-dried powder, or by wholly non-tower methods such as dry mixing and granulation; in both cases a high-speed mixer/granulator may advantageously be used. Processes using high-speed mixer/granulators are disclosed, for example, in EP340 013A, EP 367 339A, EP 390 251A and EP
420 317A (Unilever).
According to one aspect of the invention there is provided a qranular detergent composition comprising:
from 5 to 60 wt%, preferably 5 to 40 wt%, of component (a) defined hereinbefore;
from 10 to 80 wt% of component (b) defined hereinbefore: and WO 95127028 - : 2 ~ 8 4 3 6 2 PCT/US9S102699 from 0.001 to 10 wt% of component (c) defined hereinbefore.
According to another embodiment of the invention there is provided a liquid detergent composition, preferably a heavy duty liguid detergent composition, comprising from 5 to 60 wt% of component (a) above and from 5 to 40 wt% of component (b) above and from 0.001 to 10 wt% of component (c) above.
According to this embodiment the liquid detergent composition may be of any convenient physical form which may be aqueous or anhydrous. The term "liquid" used herein includes partly viscous formulations such as gels. The liquid detergent composition generally has a pH of from 6.5 to 10.5.
The total amount of detergency builder in the liquid composition is preferably from 5 to 70% of the total liquid composition.
The following Examples provide illustrative detergent compositions according to the present invention.
The following abbreviations have been used:
LAS - linear C12 alkyl benzene sulphonate AS - sodium alkyl sulphate TAS - sodium tallow alcohol sulphate 45E7 _ C14_15 primary alcohol condensed with an average of 7 moles of ethylene oxide 25E3 - C12_15 primary alcohol condensed with Wo95/27028 ~ 2 1 8 4 3 6 2 PcT~s9slo26ss an average of 3 moles of ethylene oxide PC3 - percarbonate PBl - perborate monohydrate PB4 - perborate tetrahydrate TAED - Tetraacetyl ethylene diamine PVP - polyvinyl pyrrolidone PYNO - polyvinylpyridine N oxide PVPVl - polyvinylpyrrolidone-polyvinylimidazole copolymer MnPC - manganese phthalocyanintetrasulphonate.
EDTMP - ethylene diamine tetramethylene phosphonate CMC - carboxymethyl cellulose Brighteners 1, 2 and 3 correspond to the compounds of formulae 1, 2 and 3 respectively as defined in the description.
wo gsn7028 2 1 13 4 3 ~ 2 PcTluS9!j/02699 ExamDles LAS _ 7 _ 5 C24 AS - - 5.6 3 TAS _ 5 Glucamide - - - 5 Zeolite MAP 38 32 40 35 Na SKS-6 5 citrate 10 12 - 10 carbonate 7 7 10 10 silicate (2.0 ratio) - 6 5 5 PBl - 10 PB4 - . 5 - 2 TAED 2.5 3 Protease _ (Alcalase) 2.0 2.0 2.0 2.0 Amylase - .
(Termamyl) 0.4 0.4 0.4 0.4 Lipase (Lipolase) 0.4 0.4 0.4 0.4 PVP 1. 0 W095l27028 2 1 ~ 4 3 6 2 PCT~S95/026ss PVNO _ 0.5 PVPVI - - 0.5 MnPC - - - 0.2 EDTMP 0.1 0.2 0.1 0.1 CMC . 0.8 0~6 0.8 0.8 Suds Suppressor Brightener 1 - 0.2 2 0.2 - 0.2 3 - - - 0.2 Moisture, sulphate and miscellaneous 6.6 4.727.0 15.9
Claims (12)
1. A detergent composition comprising:
a) a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof;
b) a detergency builder comprising zeolite P
having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP); and c) one or more additional components selected from (i) anionic optical brighteners which are N-bonded stilbene derivatives:
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o l y v i n y l o x a z o l i d o n e s , polyvinylimidazoles or mixtures thereof; and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
a) a surfactant selected from anionic, nonionic, cationic, amphoteric and zwitterionic detergent-active compounds and mixtures thereof;
b) a detergency builder comprising zeolite P
having a silicon to aluminium ratio not greater than 1.33 (zeolite MAP); and c) one or more additional components selected from (i) anionic optical brighteners which are N-bonded stilbene derivatives:
(ii) polymers selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole, polyvinylpyrrolidone polymers, p o l y v i n y l o x a z o l i d o n e s , polyvinylimidazoles or mixtures thereof; and ( i i i ) m a n g a n e s e phthalocyanintetrasulphonate.
2. A detergent composition according to claim 1, wherein the zeolite MAP has a silicon to aluminium ratio not greater than 1.07.
3. A detergent composition according to claim 1 or 2, wherein the zeolite MAP has a particle size d50 of 1 to 5 micrometres.
4. A detergent composition according to any one of claims 1 to 3, which comprises 5 to 60 wt% of the zeolite MAP.
5. A detergent composition according to claim 4 which comprises from 10 to 40 wt% of the zeolite MAP.
6. A detergent composition according to any one of claims 1 to 5, wherein the optical brightener (c)(i) is selected from compounds of the formula:
wherein R represents diethanolamino and R2 represents -SO3Na: or R represents morpholino and R2 represents -SO3Na; or R represents anilino and R2 represents H or -SO3Na; or R represents 1-methyl-2-hydroxethylamino and R2 represents -SO3Na.
wherein R represents diethanolamino and R2 represents -SO3Na: or R represents morpholino and R2 represents -SO3Na; or R represents anilino and R2 represents H or -SO3Na; or R represents 1-methyl-2-hydroxethylamino and R2 represents -SO3Na.
7. A detergent composition according to any one of claims 1 to 6 which comprises one or more optical brighteners in an amount of from 0.001 to 10.0 wt% of the composition.
8. A detergent composition according to claim 7, which comprises one or more optical brighteners in an amount of from 0.05 to 0.3 wt% of the composition.
9. A detergent composition according to any one of claims 1 to 8, wherein the polymer (c)(ii) is selected from polyvinylpyrrolidone; polyvinylpyridine N-oxide; and polyvinylpyrrolidone-polyvinylimidazole copolymer.
10. A detergent composition according to claim 9, wherein the polymer (c)(ii) comprises polyvinylpyrrolidone in an amount of from 0.05 to 0.3 wt% based on the composition.
11. A detergent composition according to claim 9 wherein the polymer (c)(ii) comprises polyvinylpyridine N-oxide or polyvinylpyrrolidone-polyvinylimidazole copolymer in an amount of from 0.01 to 1.5 wt% based on the composition.
12. A detergent composition according to any one of claims 1 to 11, in which component (c) comprises the manganese phthalocyanintetrasulphonate in an amount of from 0.01 to 1.0 wt% based on the composition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9406543A GB2287949A (en) | 1994-03-31 | 1994-03-31 | Laundry detergent composition |
| GB9406543.0 | 1994-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2184362A1 true CA2184362A1 (en) | 1995-10-12 |
Family
ID=10752923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2184362 Abandoned CA2184362A1 (en) | 1994-03-31 | 1995-03-01 | Detergent composition |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0753043A4 (en) |
| JP (1) | JPH09511270A (en) |
| CN (1) | CN1145092A (en) |
| CA (1) | CA2184362A1 (en) |
| GB (1) | GB2287949A (en) |
| WO (1) | WO1995027028A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2287950A (en) * | 1994-03-31 | 1995-10-04 | Procter & Gamble | Detergent composition |
| GB2296919A (en) * | 1995-01-12 | 1996-07-17 | Procter & Gamble | Detergent composition |
| GB9500737D0 (en) * | 1995-01-14 | 1995-03-08 | Procter & Gamble | Detergent composition |
| DE19524451A1 (en) † | 1995-07-07 | 1997-01-09 | Henkel Kgaa | Color transfer inhibiting detergent |
| WO1997032480A1 (en) * | 1996-03-06 | 1997-09-12 | Novo Nordisk A/S | A method of killing or inhibiting microbial cells |
| GB9605534D0 (en) * | 1996-03-15 | 1996-05-15 | Unilever Plc | Detergent compositions |
| GB9605533D0 (en) | 1996-03-15 | 1996-05-15 | Unilever Plc | Modified aluminosilicate |
| GB2312216A (en) * | 1996-04-17 | 1997-10-22 | Procter & Gamble | Detergent compositions |
| GB2338242A (en) * | 1998-06-10 | 1999-12-15 | Reckitt & Colman Inc | Germicidal laundry detergent |
| US20040238791A1 (en) * | 2001-09-03 | 2004-12-02 | Simon Champ | Reinforcement of the effect of optical brighteners by means of polymers |
| GB0229146D0 (en) | 2002-12-13 | 2003-01-15 | Unilever Plc | Polymers and laundry detergent compositions containing them |
| GB0229147D0 (en) | 2002-12-13 | 2003-01-15 | Unilever Plc | Polymers and laundry detergent compositions containing them |
| DE10355703A1 (en) * | 2003-11-28 | 2005-06-30 | Polygon Chemie Ag | New amphoteric polymers including aza-cyclic system quaternized by anionic groups, useful as polyfunctional additives, e.g. bleach promoters and color transfer inhibitors, in detergents or cleansers |
| CN102127027B (en) | 2005-06-15 | 2014-06-25 | 西巴特殊化学制品控股公司 | Laundering process for whitening synthetic textiles |
| RU2014143894A (en) * | 2012-04-03 | 2016-05-27 | Басф Се | COMPOSITIONS CONTAINING PHTHALOCYANINE GRANULES |
| CN107805960A (en) * | 2017-11-13 | 2018-03-16 | 东莞市古川纺织助剂有限公司 | A kind of fabric short route low temperature active soaping agent |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856087A1 (en) * | 1978-12-23 | 1980-07-10 | Henkel Kgaa | Powdered washing compsn. contg. aluminosilicate and brightener - with nonionic polyglycol ether added before drying to inhibit discolouration |
| EP0054992B1 (en) * | 1980-12-22 | 1985-03-20 | Unilever N.V. | Composition containing a photo-activator for improved bleaching |
| US4417994A (en) * | 1981-01-24 | 1983-11-29 | The Procter & Gamble Company | Particulate detergent additive compositions |
| US4399049A (en) * | 1981-04-08 | 1983-08-16 | The Procter & Gamble Company | Detergent additive compositions |
| CA2001927C (en) * | 1988-11-03 | 1999-12-21 | Graham Thomas Brown | Aluminosilicates and detergent compositions |
| EP0448297A1 (en) * | 1990-03-19 | 1991-09-25 | Unilever Plc | Detergent compositions |
| GB9015503D0 (en) * | 1990-07-13 | 1990-08-29 | Unilever Plc | Detergent composition |
| DE4027832A1 (en) * | 1990-09-01 | 1992-03-05 | Henkel Kgaa | LIQUID STAINLESS DETERGENT |
| GB9104547D0 (en) * | 1991-03-05 | 1991-04-17 | Unilever Plc | Detergent compositions |
| EP0576778B1 (en) * | 1992-07-03 | 1998-02-04 | The Procter & Gamble Company | Concentrated aqueous liquid detergent compositions |
| ES2125967T3 (en) * | 1992-07-15 | 1999-03-16 | Procter & Gamble | COMPOSITIONS INHIBITING THE TRANSFER OF DYE WITH SURFACE CONTENT. |
-
1994
- 1994-03-31 GB GB9406543A patent/GB2287949A/en not_active Withdrawn
-
1995
- 1995-03-01 CN CN 95192365 patent/CN1145092A/en active Pending
- 1995-03-01 EP EP95913973A patent/EP0753043A4/en not_active Withdrawn
- 1995-03-01 JP JP7525692A patent/JPH09511270A/en active Pending
- 1995-03-01 CA CA 2184362 patent/CA2184362A1/en not_active Abandoned
- 1995-03-01 WO PCT/US1995/002699 patent/WO1995027028A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995027028A1 (en) | 1995-10-12 |
| JPH09511270A (en) | 1997-11-11 |
| GB9406543D0 (en) | 1994-05-25 |
| CN1145092A (en) | 1997-03-12 |
| EP0753043A1 (en) | 1997-01-15 |
| GB2287949A (en) | 1995-10-04 |
| EP0753043A4 (en) | 1999-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |