WO1995021234A1 - Composition detersive pour lave-vaisselle - Google Patents

Composition detersive pour lave-vaisselle Download PDF

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Publication number
WO1995021234A1
WO1995021234A1 PCT/EP1995/000102 EP9500102W WO9521234A1 WO 1995021234 A1 WO1995021234 A1 WO 1995021234A1 EP 9500102 W EP9500102 W EP 9500102W WO 9521234 A1 WO9521234 A1 WO 9521234A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydrotalcite
alkali metal
machine dishwashing
cations
metal silicate
Prior art date
Application number
PCT/EP1995/000102
Other languages
English (en)
Inventor
Maurice Webb
Original Assignee
Crosfield 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 Crosfield Limited filed Critical Crosfield Limited
Priority to AU15336/95A priority Critical patent/AU1533695A/en
Publication of WO1995021234A1 publication Critical patent/WO1995021234A1/fr

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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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/14—Silicates
    • 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
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • 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
    • C11D3/1213—Oxides or hydroxides, e.g. Al2O3, TiO2, CaO or Ca(OH)2
    • 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
    • C11D3/1233—Carbonates, e.g. calcite or dolomite
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds

Definitions

  • This invention relates to machine dish- and warewashing compositions. These compositions are used for the cleaning of housewares in automatic-dishwashing and warewashing machines and will be referred to in the description as machine dishwashing compositions.
  • the invention more specifically relates to a substitute to synthetic hectorites for use in machine dishwas ⁇ r _ ⁇ g compositions.
  • Machine dishwashing compositions usually contain as main components a builder or builder mixture, buffering and/or alkaline agents, a bleaching agent which may be a chlorine or oxygen bleach, and lately also enzymes. Such machine dishwashing compositions are used in the main wash step of machine dishwashing and in general have a satisfactory cleaning performance.
  • EP-A-0, 139,329, EP-A-0,139,331 and EP-A-0,140,435 discloses the incorporation of a layered clay in a rinse aid composition.
  • Suitable layered clay minerals according to these art references belong to the geological classes of the smectites, the kaolins, the illites, the chlorites, the attapulgites and the mixed layer clays, which may be either naturally occurring or synthetic, preferably the commercial synthetic hectorites ex Laporte Industries Ltd, known under the tradename Laponite®.
  • hydrotalcite-like material it is understood a product having the following composition:
  • M is any 1+ or 2+ cation or combination thereof
  • N is any 3+ or 4+ cation or combination thereof
  • k is the sum of the individual mole fractions of the 1+ cations
  • m is the sum of the individual mole fractions of the 2+ cations
  • n is the sum of the individual mole fractions of the 3+ cations
  • the cations M in the above formula are Li, Mg 2+ , Zn 2+ , Fe 2+ , Cu 2+ , Sn 2+ , Ca 2+ and Sr 2+ .
  • Suitable N cations include Al 3+ , Fe 3+ , Ti + and Sn 4+ .
  • Preferred divalent cations are Zn 2+ , Cu 2+ or Mg 2+ or a combination of these ions, or a combination with other divalent cations.
  • the anion A may be an inorganic or organic anion.
  • Preferred inorganic anions A are Cl ⁇ , N0 3 ⁇ , S0 4 2 ⁇ , C0 3 2 ⁇ and OH " .
  • Examples of organic anions are carboxylate ions such as citrate and stearate.
  • hydrotalcite-like materials of this invention are:-
  • Builder materials are well-known in the art and many types of organic and inorganic compounds have been described in literature. They are normally used in all sorts of cleaning compositions to provide alkalinity and buffering capacity, prevent flocculation, maintain ionic strength, extract metals from soils and/or remove alkaline-earth metal ions from washing solutions.
  • the builder material usable herein can be any one or mixture of the various phosphate and preferably non- phosphate builder materials, such as for example the alkalimetal citrates, carbonates and bicarbonates; nitrilotriacetic acid (NTA) ; dipicolinic acid (DPA) ; oxydisuccinic acid (ODS) ; alkyl- and alkenylsuccinates
  • NTA nitrilotriacetic acid
  • DPA dipicolinic acid
  • ODS oxydisuccinic acid
  • AVS layered silicate
  • zeolites layered silicate
  • They may be present in the composition of the invention in an amount of from 10% up to about 90% by weight, preferably from 20% to 80% by weight.
  • Particularly preferred builders are citrates, alkenylsuccinates, carbonates, bicarbonates, zeolites, and mixtures thereof.
  • This is normally an alkalimetal silicate, preferably sodium silicate at a level of from about 1 to about 70% by weight, preferably from 5 to 40% by weight.
  • This material is employed as a cleaning ingredient, source of alkalinity, metal corrosion inhibitor and protector of glaze on china tableware.
  • silicates with a mol ratio of Si0 2 :metal oxide of 0.67 to 4.5 are suitable.
  • sodium silicate having a mol ratio of Si0 2 :Na 2 0 of from about 1.0 to about 3.3., preferably from about 1.8 to about 2.5, normally referred to as sodium disilicate.
  • NaOH and/or KOH are also commonly used to provide alkalinity in compositions for industrial warewashing machines.
  • the amount of bleaching agent will preferably lie in a range from 1 to 30% by weight.
  • Alkali metal hypochlorite may be incorporated.
  • Other chlorine bleaches are alkali metal salts of di- and tri-chloro and di- and tri-bromo cyanuric acids.
  • Preferred bleaches are the peroxygen bleaches, such as sodium perborate (tetra- or monohydrate) or sodium percarbonate. These are preferably used in conjunction with a bleach activator which allows the liberation of active oxygen species at a lower temperature. Numerous examples of activators of this type, often also referred to as bleach or peracid precursors, are known in the art. Preferred bleach activators are tetraacetyl ethylene diamine (TAED) , glucose pentaacetate (GPA) and the mono-long chain acyl tetraacetyl glucoses as disclosed in WO 91/10719, but other activators such as choline sulphophenylcarbonate
  • CSPC CSPC as disclosed in US Patents 4,751,015 and 4,818,426
  • the amounts of sodium perborate or percarbonate and bleach activator in the compositions preferably do not exceed 20% and 10% by weight respectively, e.g. from 4-20% and from 2-10% by weight respectively.
  • peroxygen bleach is potassium monopersulphate.
  • Further peroxygen bleaches which may be used are the organic peroxyacids and their metal salts. Typical peroxy-acids include:
  • peroxybenzoic acid and ring-substituted peroxybenzoic acids e.g. peroxy- ⁇ -naphthoic acid
  • aliphatic and substituted aliphatic monoperoxy acids e.g.
  • peroxylauric acid and peroxystearic acid iii) 1, 12-diperoxydodecanedioic acid (DPDA) ; iv) 1, 9-diperoxyazelaic acid; v) diperoxybrassylic acid; diperoxysebacic acid and diperoxyisophthalic acid; vi) 2-decyldiperoxybutane-l,4-dioic acid; and vii) phthaloylamido peroxycaproic acid (PAP)
  • DPDA 12-diperoxydodecanedioic acid
  • PAP phthaloylamido peroxycaproic acid
  • a bleach catalyst such as the manganese complexes of EP- A-458,397 and the sulphonimines of US Patents 5,041,232 and 5,047,163 may also be added.
  • Amylolytic and/or proteolytic enzymes are normally used.
  • the amylolytic enzvmes usable herein can be those derived from bacteria or fungi.
  • Preferred amylolytic enzymes are those prepared and described in
  • GB Patent No. 1,296,839 cultivated from the strains of Bacillus licheniformis NCIB 8061-, NCIB 8059, ATCC 6334, ATCC 6598, ATCC 11945, .--TCC 8480 and ATCC 9945 A.
  • amylolytic enzymes are those produced and distributed under the Trade-names of SP-95 ® and
  • amylolytic enzymes are generally presented as granules and may have enzyme activities of from about 2 to 10 Maltose units/milligram. They may be present in the composition of the invention in amounts such that the final composition has amylolytic enzyme activity of from 10 3 to 10 6 Maltose Units/Kilogram.
  • amylolytic activity as referred to herein can be determined by the method as described by P. Bernfeld in "Method of Enzymology” Volume I (1955) page 149.
  • the proteolytic enzymes usable herein are for example the subtilisins which are obtained from particular strains of B. Subtilis and B. licheniformis, such as the commercially available substilisins Maxatase ® supplied by Gist-Brocades NV, Delft, Holland, and Alcalase ® , supplied by NOVO Industri A/S Copenhagen, Denmark. Particularly suitable are proteases obtained from a strain of Bacillus having maximum activity throughout the pH range of 8-12, being commercially available from NOVO Industri A/S under the Trade names of Esperase ® and Savinase ® . The preparation of these and analogues enzymes is described in GB Patent No. 1,243,784.
  • proteolytic enzyme activity can be determined by the method as described by M.L. Anson in "Journal of General Physiology” Vol. 22 (1938), page 79
  • proteolytic enzymes may be present in amounts such that the final composition has proteolytic enzyme activity of from about 10 6 to 10 8 Glycine Units/Kilogram.
  • lipolytic enzymes may also be incorporated to improve fat removal.
  • Typical examples of commercial lipolytic enzymes are Lipase YL, Amano
  • the glass-appearance was judged in terms of spot-score according to the following table.
  • a co-granule of an alkali metal silicate which is soluble under machine dish wash conditions and hydrotalcite like material can be prepared by a process involving mixing the alkali metal silicate, which may be in the solution, powder or granular form and the hydrotalcite like material, which may be introduced as a dry powder or as a slurry in water or alkali metal silicate solution. This mixing takes place either in, or is followed by introduction into, suitable granulation equipment (e.g spray drier, roller compactor, fluid bed drier, marumeriser, pan granulator, extruder, tableting machinery or any other suitable equipment) . Water or alkali metal silicate solution may optionally be added to assist the granulation step (or as part of the formulation) and a post-granulation drying step may be needed to produce a free-flowing powder.
  • suitable granulation equipment e.g spray drier, roller compactor, fluid bed drier, marumeriser, pan granulator, extruder, tableting machinery
  • the weight ratio of alkali metal silicate to hydrotalcite-like material in the cogranule is within the range 500:1 to 1:50.
  • It is also a second object of the present invention to provide a machine dishwashing composition comprising a builder or builder mixture, buffering and/or alkaline agent, wherein it further comprises an effective amount of a co- granule of an alkali metal silicate and a hydrotalcite-like material.
  • the effective level of the co-granule of alkali metal silicate and hydrotalcite-like material to be included in the machine dishwashing composition of the invention will be such to give a hydrotalcite-like material content which will range from about 0.01 to 40% by weight, usually from 0.1 to 20% by weight, preferably from 0.5 to 10% and most preferably from 0.5 - 5% by weight.
  • the machine dishwashing composition of the invention will normally also contain a builder or builder mixture, buffering and/or alkaline agents, optionally but preferably also a bleaching agent and an enzyme or mixtures of enzymes.
  • the machine dishwashing compositions of the present invention can be manufactured and presented in any physical form such as a powder, liquid, paste or solid blocks or tablets, and are preferably formulated such that they provide a wash liquor with a pH of between 6 and 13, preferably from 8-11, and more preferably from 9.5-10.5
  • a first spot test was realised as described herein before wherein the absorbent was Laponite XLG ex Laporte Industries Ltd. Laponite XLG and TAED were added as cogranules to the washing composition.
  • Disilicate and hydrotalcite material were added as cogranules to the washing composition.
  • the cogranules were produced as follows.
  • the Spot Score was 9.
  • Disilicate and hydrotalcite material were added as cogranules to the washing composition.
  • the cogranules were produced as follows:
  • Example 2 2.5 kg of granular sodium disilicate (as in Example 2) were placed in the Lodige mixer. 88.2 g Macrosorb CT100 were mixed with 400g of a 10% sodium disilicate solution using an ultra turrax system then sprayed onto the granular disilicate. Granulation, drying and sieving were done as in Example 2.
  • Example 2 Comparing Example 2 with Example 3, it can be seen that depending on the manufacturing process of the cogranules, the performance of the end-product can be slightly different. Without wishing to be bound by any theory, it can be assumed that the hydrotalcite like material reacts with the soluble alkali metal silicate in solution to form a complex which could bind proteinaceous species. If this theory is correct, it can be assumed that Example 3 was made via a process which should give controlled and better complexation between the hydrotalcite-like material and the alkali metal silicate.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (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

Un granulé composite d'un matériau du type hydrotalcite, de préférence un hydrotalcite de Zn/Al ou de Mg/Al et d'un silicate de métal alcalin peut être avantageusement utilisé à la place des hectorites synthétiques généralement utilisés dans des compositions détersives pour lave-vaisselle.
PCT/EP1995/000102 1994-02-02 1995-01-11 Composition detersive pour lave-vaisselle WO1995021234A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15336/95A AU1533695A (en) 1994-02-02 1995-01-11 Machine dishwashing compositions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9402001.3 1994-02-02
GB9402001A GB9402001D0 (en) 1994-02-02 1994-02-02 Machine dishwashing compositions

Publications (1)

Publication Number Publication Date
WO1995021234A1 true WO1995021234A1 (fr) 1995-08-10

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PCT/EP1995/000102 WO1995021234A1 (fr) 1994-02-02 1995-01-11 Composition detersive pour lave-vaisselle

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AU (1) AU1533695A (fr)
GB (1) GB9402001D0 (fr)
WO (1) WO1995021234A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992052B2 (en) 2002-12-30 2006-01-31 The Procter & Gamble Company Process of preparing in-situ water-soluble zinc salt for use in automatic dishwashing compositions
US8431517B2 (en) 2004-09-28 2013-04-30 The Procter & Gamble Company Surface corrosion protection detergent compositions containing polyvalent metal compounds and high levels of low foaming, nonionic surfactants

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008693A1 (fr) * 1988-03-11 1989-09-21 The Dow Chemical Company Modificateurs de viscosite pour produits fonctionnels aqueux
DE4122200A1 (de) * 1991-07-04 1993-01-07 Henkel Kgaa Waessrige zubereitungen oberflaechenaktiver substanzen
WO1994003574A1 (fr) * 1992-08-07 1994-02-17 Unilever N.V. Compositions de lavage et auxiliaires de rinçage pour le lavage de la vaisselle en machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008693A1 (fr) * 1988-03-11 1989-09-21 The Dow Chemical Company Modificateurs de viscosite pour produits fonctionnels aqueux
DE4122200A1 (de) * 1991-07-04 1993-01-07 Henkel Kgaa Waessrige zubereitungen oberflaechenaktiver substanzen
WO1994003574A1 (fr) * 1992-08-07 1994-02-17 Unilever N.V. Compositions de lavage et auxiliaires de rinçage pour le lavage de la vaisselle en machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6992052B2 (en) 2002-12-30 2006-01-31 The Procter & Gamble Company Process of preparing in-situ water-soluble zinc salt for use in automatic dishwashing compositions
US8431517B2 (en) 2004-09-28 2013-04-30 The Procter & Gamble Company Surface corrosion protection detergent compositions containing polyvalent metal compounds and high levels of low foaming, nonionic surfactants

Also Published As

Publication number Publication date
GB9402001D0 (en) 1994-03-30
AU1533695A (en) 1995-08-21

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