WO2007007030A1 - Article et procédé - Google Patents

Article et procédé Download PDF

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Publication number
WO2007007030A1
WO2007007030A1 PCT/GB2006/002397 GB2006002397W WO2007007030A1 WO 2007007030 A1 WO2007007030 A1 WO 2007007030A1 GB 2006002397 W GB2006002397 W GB 2006002397W WO 2007007030 A1 WO2007007030 A1 WO 2007007030A1
Authority
WO
WIPO (PCT)
Prior art keywords
tablets
tablet
load
washing
suitably
Prior art date
Application number
PCT/GB2006/002397
Other languages
English (en)
Inventor
Laurence Geret
Andreas Wegner
Original Assignee
Reckitt Benckiser N.V.
Reckitt Benckiser (Uk) Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reckitt Benckiser N.V., Reckitt Benckiser (Uk) Limited filed Critical Reckitt Benckiser N.V.
Publication of WO2007007030A1 publication Critical patent/WO2007007030A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • 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
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0065—Solid detergents containing builders
    • C11D17/0073—Tablets
    • C11D17/0091—Dishwashing tablets

Definitions

  • known multi-function automatic dishwasher tablets comprise three major components: a detergent composition, a water softening function ("salt function”) and a rinse aid function. These components may be provided in separate conjoined layers of the tablet and arranged to dissolve into the wash water during different stages of the washing operation.
  • the present invention aims to address at least one disadvantage associated with the prior art whether discussed herein or otherwise.
  • a cleaning tablet for use in a washing opera- tion characterised in that the tablet has a mass of between Ig and 15g such that it can be used singularly or with one or more other like tablets depending upon a required washing performance.
  • the tablet has a mass of no more than 14g, more preferably no more than 13g, more preferably no more than 12g, more preferably no more than Hg, still more prefera- bly no more than 1Og.
  • the tablet may have a mass of no more than 9g, for example of no more than 8g, 7g, 6g, or 5g.
  • the tablet has a mass of at least 2g, more preferably at least 3g.
  • the tablet may have a mass of at least 4g, for example at least 5g, 6g, 7g, 8g or 9g.
  • the cleaning tablet comprises a detergent composition.
  • the cleaning tablet may comprise a water-softening tablet which comprises a cleaning composition comprising a water-softening composition.
  • the cleaning tablet comprises a tablet for use in an automatic ware washing machine.
  • the cleaning tablet comprises a tablet for use in an automatic dishwashing machine.
  • the detergent tablet may be arranged to be used in combination with a separate supply of dishwasher salt and/or rinse aid.
  • the tablet may be substantially free from rinse aid and/or dishwasher salt functions.
  • cleaning composition is understood iri the broad sense in the present application, namely as comprising all those substances and mixtures of substances which can be used in connection with cleaning processes .
  • cleaning compositions include not only the compositions which are actually active in cleaning, such as detergents, for example dishwasher detergents, and washing substances, but all compositions which support cleaning functions concerned, such as water softeners, or which have the effect of providing protec- tive care, such as fabric treaters or final rinses.
  • cleaning composition are mixtures of ingredients selected from: surfactant, builder, filler, bleach (optionally containing also bleach activator and/or a bleach catalyst) , water-softening composition and enzymes.
  • the cleaning composition may contain other minor ingredients such as dye, fragrance and optical bright- eners .
  • water-softening composition we mean a mixture of a water-softening active (s) with other compounds selected from those mentioned in the previous paragraph, or elsewhere in this specification.
  • the cleaning composition comprises a detergent composition.
  • the cleaning composition may comprise a detergent composition together with other components which support a cleaning function.
  • the cleaning composition may consist essentially of a detergent compo- sition.
  • the detergent composition may be substantially free of components which support cleaning functions, such as water-softeners, or which have the effect of providing' protective care, such as fabric softeners or final rinses (rinse aids) .
  • the tablet has a mass of between 5g and 13g, preferably between 7g and Hg, more preferably between 8g and 1Og, for example around 9g.
  • the cleaning composition comprises detergent composition which comprises a substantially complete formulation for its respective use. Accordingly, it is suitably not necessary to employ a number of tablets according to the present invention comprising different compositions. Difficulties associated with a consumer having to count out a selection of different tablets may thus be avoided.
  • the tablet is free from phosphorus-containing compounds .
  • the use of two like tablets of the present invention may be more effective than the use of a known tablet having the same formulation as the tablets of the present invention and a weight equal to the combined weight of said two tablets of the present invention.
  • the tablet may be provided with a water soluble coating, the nature of that coating being determined by the purpose for which it is intended. Any water-soluble polymer may be provided for a coating, for example, if the purpose of the coating is to provide greater stability during storage and handling and/or a certain delay in dissolution in the wash liquor. If the aim of the delay is, for 'example, for the ingredients to be released in a certain phase of the washing cycle, as is the case with formulations for the final rinse for machine rinsing in the form of the invention, pH-dependent coating materials can be used.
  • citrate salts for example alkali metal citrates, and especially sodium citrate.
  • ion capture agents - agents which prevent metal ions from forming insoluble salts or reacting with surfactants, such as polyphosphate, monomeric polycarbonates, such as citric acid or salts thereof, EDTA, algins, alginates; and
  • anti-nucleating agents - agents which prevent seed crystal growth such as polycarbonate polymers, such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphonates, and sulfonates.
  • polycarbonate polymers such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphonates, and sulfonates.
  • surface active agents such as an anionic, non-ionic, cationic, amphoteric or zwitterionic surface active agents or mixtures thereof.
  • anionic surfactants are straight-chained or branched alkyl sulfates and alkyl polyalkoxylated sulfates, also known as alkyl ether sulfates.
  • Such surfac- tants may be produced by the reaction of sulfates with higher (e.g. C 8 -C 2 O) fatty alcohols.
  • R is a linear C 8 -C 2 O hydrocarbyl group and M is a water-solubilising cation.
  • R is Ci 0 -Ci 6 alkyl, for example Ci 2 -Ci 4
  • M is alkali metal such as lithium, sodium or potassium.
  • secondary alkyl sulfate surfactants are those which have the sulfate moiety on a "backbone" of the mole- cule, for example those of formula:
  • n and n are independently 2 or more, the sum of m+n typically being 6 to 20, for example 9 to 15, and M is a water-solubilising cation such as lithium, sodium or potassium.
  • M is a water-solubilising cation such as lithium, sodium or potassium.
  • Especially preferred secondary alkyl sulfates are the (2,3) alkyl sulfate surfactants of formulae:
  • x is at least 4, for example 6 to 20, preferably 10 to 16.
  • M is cation, such as an alkali metal, for example lithium, sodium or potassium.
  • alkoxylated alkyl sulfates are ethoxylated alkyl sulfates of the formula:
  • R is a C 8 -C 20 alkyl group, preferably C 10 -Ci 8 such as a Ci 2 -Ci 6
  • n is at least 1, for example from 1 to 20, preferably 1 to 15, especially 1 to 6
  • M is a salt- forming cation such as lithium, sodium, potassium, ammonium, alkylammonium or alkanolammonium.
  • fatty alcohol ethoxylates are those made from alcohols of 12 to 15 carbon atoms and which contain about 7 moles of ethylene oxide. Such materials are commercially marketed under the trademarks NEODOL 25-7 and NEODOL 23-6.5 by Shell Chemical Company.
  • Other useful compounds of this type include NEODOL 1-5, an ethoxylated fatty alcohol averaging 11 carbon atoms in its alkyl chain with about 5 moles of ethylene oxide; NEODOL 23-9, an ethoxylated primary Ci 2 -Ci 3 alcohol having about 9 moles of ethylene oxide; and NEODOL 91-10, an ethoxylated C 9 -Cn primary alcohol having about 10 moles of ethylene oxide.
  • Suitable ethoxylated alcohol non-ionic surfactants include TERGITOL 15-S-7 and TERGITOL 15-S-9, both of which are linear secondary alcohol ethoxylates available from Union Carbide Corporation.
  • TERGITOL 15-S-7 is a mixed ethoxylated product of a Cn-Ci 5 linear secondary alkanol with 7 moles of ethylene oxide and TERGITOL 15-S-9 is the same but with 9 moles of ethylene oxide.
  • Suitable alcohol ethoxylated non-ionic surfactants are NEODOL 45-11, which is a similar ethylene oxide condensation products of a fatty alcohol having 14-15 carbon atoms and the number of ethylene oxide groups per mole being about 11. Such products are also available from Shell Chemical Company.
  • Non-ionic surfactants are, for example, Ci 0 -Ci 8 al- kyl polyglycosides, such as Ci 2 -Ci 6 alkyl polyglycosides . These are especially useful when high foaming compositions are desired.
  • Further surfactants are polyhydroxy fatty acid amides, such as Ci 0 -Ci 8 N- (3-methoxypropyl) glycamides and ethylene oxide-propylene oxide block polymers of the Pluronic type.
  • cationic surfactants are those of the quater- nary ammonium type .
  • the total content of surfactants in the tablet is desirably 60 to 95 wt%, especially 75 to 90 wt% .
  • an anionic surfactant is present in an amount of 50 to 75 wt%
  • the nonionic surfactant is present in an amount of 5 to 50 wt%
  • the cationic surfactant is present in an amount of from 0 to 20 wt%, by weight of tablet.
  • the tablets can also optionally comprise one or more additional ingredients.
  • additional ingredients include conventional cleaning composition components such as further surfactants, bleaches, bleach enhancing agents, builders, suds boosters or suds suppressors, anti-tarnish and anti-corrosion agents, organic solvents, co-solvents, phase stabilisers, emulsifying agents, preservatives, soil suspending agents, soil release agents, germicides, pH adjusting agents or buffers, non-builder alkalinity sources, chelating agents, clays such as smectite clays, enzyme stabilizers, anti- limescale agents, colourants, dyes, hydrotropes, dye transfer inhibiting agents, brighteners, and perfumes.
  • conventional cleaning composition components such as further surfactants, bleaches, bleach enhancing agents, builders, suds boosters or suds suppressors, anti-tarnish and anti-corrosion agents, organic solvents, co-solvents, phase stabilisers, emulsifying agents, preservatives, soil suspending agents
  • Such optional ingredients will generally constitute no more than 10 wt%, for example from 1 to 6 wt%, of the total weight of the tablets.
  • Tablets which comprise an enzyme may optionally contain materials which maintain the stability of the enzyme.
  • enzyme stabilizers include, for example, polyols such as propylene glycol, boric acid and borax. Combinations of these enzyme stabilizers may also be employed. If utilized, the enzyme stabilizers generally constitute 1 from 0.1 to 1 wt% of the tablets.
  • Preferred dishwashing tablets are adapted to be used in automatic dish washing machines. Due to their specific requirements specialised formulation is required, and these are illustrated below.
  • an ADW tablet comprises at least one non-ionic surfactant.
  • non-ionics are ethoxylated non- ionic surfactants prepared by the reaction of a monohy- droxy alkanol or alkylphenol with 6 to 20 carbon atoms with preferably at least 12 moles, particularly preferably at least 16 moles, and still more preferably at least 20 moles of ethylene oxide per mole of alcohol or alkylphe- nol .
  • non-ionic surfactants are formed from a linear chain fatty alcohol with 16-20 carbon atoms and at least 12 moles, particularly preferably at least 16 moles, and still more preferably at least 20 moles, of ethylene oxide, per mole of alcohol.
  • R 1 represents a linear or branched chain aliphatic hydrocarbon group with 4-18 carbon atoms or mixtures thereof
  • R 2 represents a linear or branched chain aliphatic hydrocarbon rest with 2-26 carbon atoms or mixtures thereof
  • x has a value between 0.5 and 1.5
  • y has a value of at least 15.
  • R 1 and R 2 are preferably linear or branched chain, saturated or unsaturated, aliphatic or aromatic hydrocarbon groups with 6-22 carbon atoms, where groups with 8 to 18 carbon atoms are particularly preferred.
  • group R 3 H methyl or ethyl are particularly preferred.
  • Particularly preferred values for x are from 1 and 20, preferably from 6 to 15.
  • each R 3 in the formula can be different.
  • (R 3 methyl) units which can be used in every single order for example (PO) (EO) (EO) , (EO) (PO) (EO) , (EO) (EO) (PO) ,
  • a further preferred manufacturing process is compacting, which is understood in this application to mean pressing agglomeration without the use of binders, which is usually performed by rollers rotating in opposite directions and possessing grooves of the appropriate dimensions.
  • binders which is usually performed by rollers rotating in opposite directions and possessing grooves of the appropriate dimensions.
  • Tablets accordingly to the invention may be manufactured using procedures other than compacting (such as extrusion / injection moulding) , and non-compacting methods may pro- vide greater flexibility with regard to the manufacturing process .
  • a cleaning tablet of the invention may be used in a variety of ways.
  • Other fields of use in the detergent sector are conceivable and possible, such as use as a detergent composition for dissolution in water, for cleaning hard surfaces, such as floors.
  • the tablet is arranged such that N tablets can be employed in a washing method to wash a load which substantially corresponds to a full load of a ware washing machine, and which load has a normal level of soiling, wherein N is 1, 2, 3 or 4.
  • N is 2 for an automatic dishwasher of the floor standing type.
  • the tablet is arranged such that the number of tablets employed in the washing method can be adjusted as detailed in the second aspect which follows.
  • the tablets are substantially identical.
  • the method only employs substantially identical tablets according to the first aspect. It may thus not be necessary to use a combination of tablets having distinct formulations .
  • the method comprises washing articles in an automatic ware washing machine. More preferably the method comprises washing articles, for example crockery, within an automatic dishwashing machine.
  • the method comprises the step of determining whether one or more tablets are required depending on the level of soiling and the quantity of articles to be washed.
  • the method will use N tablets.
  • N 1 to 4.
  • the method will use N + A tablets.
  • A 0 to 2.
  • A is > 0 and ⁇ (N - 1) .
  • for a domestic dish washer of the floor standing type A 1 or 2 , preferably 1.
  • the method will use N - B tablets.
  • B 0 to 2.
  • B is > 0 and ⁇ (N - 1) .
  • B 1 or 2 , preferably 1.
  • the method will use N - C tablets.
  • C 0 to 2.
  • C is > 0 and ⁇ (N - I).
  • C 1 or 2 , preferably 1.
  • A, B and C have fixed values.
  • A, B and C have the same value.
  • variation of the "dose" of tablets may thus be simple for a user to perform.
  • the determination step comprises a user noting the extent of soiling of the articles to be washed, noting the extent to which a machine is loaded and determining whether N tablets should be used or if an adjustment needs to be made.
  • a value for N will be provided with the tablets.
  • a user will use a value for A, B or C provided with the tablets.
  • a packaged product comprising a packet containing one or more tablets according to the first aspect; preferably at least two tablets, more preferably at least three tablets, and most preferably at least four tablets.
  • the packet contains up to ten tablets, preferably up to eight tablets, and most preferably up to six tablets.
  • the tablets are substantially identical.
  • the instructions comprise instructions for performing a method according to the second aspect .
  • Cleaning tablets of cuboid shape having a length of 24mm, a width of 16mm and a thickness of 14mm were produced by tabletting a tablet composition to provide a tablet having a mass of around 9g.
  • the tablets had the following formulation:
  • the tablets were produced according to the following method. Solid raw materials are weighed separately into the mixing vessel . Liquids are weighed and added to the mixture. Raw materials are combined in a commercial mixer for 10 minutes. Mixtures are then emptied into drums and transferred to the storage vessel of a rotary press. A rotary press is used to press the tablets, the final compression forces are on average 34 kN.
  • Comp 1 is a commercially available dishwashing tablet weighing 19g having a similar formulation to Example 1.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne des pastilles de détergent utilisées lors d’une opération de lavage. Les pastilles se caractérisent en ce que chacune d’elles possède une masse comprise entre 1 g et 15 g, lui permettant ainsi d’être utilisée seule ou bien avec une ou plusieurs autres pastilles analogues en fonction de la performance de lavage requise. L’invention a également trait à des procédés de nettoyage utilisant les pastilles et des produits emballés comprenant lesdites pastilles.
PCT/GB2006/002397 2005-07-08 2006-06-29 Article et procédé WO2007007030A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0514001.7 2005-07-08
GBGB0514001.7A GB0514001D0 (en) 2005-07-08 2005-07-08 Article and method

Publications (1)

Publication Number Publication Date
WO2007007030A1 true WO2007007030A1 (fr) 2007-01-18

Family

ID=34896912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/002397 WO2007007030A1 (fr) 2005-07-08 2006-06-29 Article et procédé

Country Status (5)

Country Link
AT (1) AT502114A1 (fr)
DE (2) DE102006031909A1 (fr)
GB (2) GB0514001D0 (fr)
LU (1) LU91256B1 (fr)
WO (1) WO2007007030A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253842A (en) * 1974-05-15 1981-03-03 Colgate-Palmolive Company Detergent compositions and washing methods including and utilizing separate tablets of components
EP0224129A2 (fr) * 1985-11-21 1987-06-03 Henkel Kommanditgesellschaft auf Aktien Pains détergents composés d'une manière uniforme pour le lavage de la vaisselle en machine
EP0318204A1 (fr) * 1987-11-19 1989-05-31 Unilever Plc Compositions pour le lavage en machine de la vaisselle
US6057281A (en) * 1996-06-05 2000-05-02 Amway Corporation Tableted household cleaner comprising carboxylic acid, (Bi)carbonate and polyvinyl alcohol
EP1239026A1 (fr) * 2001-03-05 2002-09-11 Unilever Plc Pastilles détergentes
US20040116317A1 (en) * 2001-04-20 2004-06-17 Burt Diane Joyce Effervescent cleaning tablets
WO2005061689A1 (fr) * 2003-12-22 2005-07-07 Danlind As Composition nettoyante solide pour la fabrication des comprimes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA752732B (en) * 1974-05-15 1976-12-29 Colgate Palmolive Co Unitary detergent compositions and washing methods
JPH10110199A (ja) * 1996-10-08 1998-04-28 Kao Corp 錠剤型洗浄剤組成物
DE10005574A1 (de) * 2000-02-09 2001-08-23 Reckitt Benckiser Nv Reinigungsmittelzusammensetzung in Tablettenform

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253842A (en) * 1974-05-15 1981-03-03 Colgate-Palmolive Company Detergent compositions and washing methods including and utilizing separate tablets of components
EP0224129A2 (fr) * 1985-11-21 1987-06-03 Henkel Kommanditgesellschaft auf Aktien Pains détergents composés d'une manière uniforme pour le lavage de la vaisselle en machine
EP0318204A1 (fr) * 1987-11-19 1989-05-31 Unilever Plc Compositions pour le lavage en machine de la vaisselle
US6057281A (en) * 1996-06-05 2000-05-02 Amway Corporation Tableted household cleaner comprising carboxylic acid, (Bi)carbonate and polyvinyl alcohol
EP1239026A1 (fr) * 2001-03-05 2002-09-11 Unilever Plc Pastilles détergentes
US20040116317A1 (en) * 2001-04-20 2004-06-17 Burt Diane Joyce Effervescent cleaning tablets
WO2005061689A1 (fr) * 2003-12-22 2005-07-07 Danlind As Composition nettoyante solide pour la fabrication des comprimes

Also Published As

Publication number Publication date
LU91256B1 (en) 2007-01-09
DE202006010654U1 (de) 2006-10-12
GB2428245A (en) 2007-01-24
GB0514001D0 (en) 2005-08-17
GB0613007D0 (en) 2006-08-09
DE102006031909A1 (de) 2007-03-01
AT502114A1 (de) 2007-01-15

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