WO1990001534A1 - Combinaison de sels adjuvants faiblement phosphatee - Google Patents

Combinaison de sels adjuvants faiblement phosphatee Download PDF

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Publication number
WO1990001534A1
WO1990001534A1 PCT/EP1989/000857 EP8900857W WO9001534A1 WO 1990001534 A1 WO1990001534 A1 WO 1990001534A1 EP 8900857 W EP8900857 W EP 8900857W WO 9001534 A1 WO9001534 A1 WO 9001534A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
component
parts
sodium
builder salt
Prior art date
Application number
PCT/EP1989/000857
Other languages
German (de)
English (en)
Inventor
Maria Liphard
Wolfgang Von Rybinski
Uwe Trabitzsch
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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 Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Publication of WO1990001534A1 publication Critical patent/WO1990001534A1/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
    • 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
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • 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
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions

Definitions

  • the present invention relates to an alkaline, low-phosphate builder salt combination which, when used in detergents, brings about an improvement in the secondary washing capacity.
  • Improved secondary washing capacity means a reduction in tissue incrustation. Such incrustations form after repeated washing and lead to severe graying and hardening. Such an incrustation can be quantitatively determined from an increased ash value.
  • the combined salt combination is used in detergents which are used in commercial laundries in conjunction with softened water and are stored as so-called stock solutions.
  • Such agents generally contain larger proportions of metasilicate, soda and phosphates. They are usually for a good primary wash effect, i. H . a high washing performance compared to greasy and mineral. Soiling designed.
  • the high alkalinity and the high proportion of alkaline-reacting silicates or soda favor tissue encrustation, especially when the proportion of tripolyphosphate has to be reduced for ecological reasons, for example to a proportion of less than 5% by weight.
  • Usual detergents that are used for such purposes therefore contain significantly more than 5% by weight tripoiphosphate (STP).
  • a builder salt combination has now been found which contains only minimal proportions of phosphates and - when used in detergents - develops excellent secondary washing power.
  • a further advantage is that such means are suitable for preparing and storing aqueous concentrates (stock solutions, stock solutions), which, as is known, enables considerable rationalization in commercial laundries.
  • the invention relates to a builder salt combination which can be used in detergents and which improves the secondary washing ability, consisting of (calculated as an anhydrous substance)
  • the builder salt mixture preferably contains 30 to 60 parts by weight of component (AI) and 10 to 50 parts by weight of component (A.2). in a particularly preferred embodiment, the builder salt combination contains 35 to 55 parts by weight of component (A1)
  • component (C) 2.5 to 4 parts by weight of component (C), the ratio of (AI) to (A2) preferably being 3: 1 to 2: 3.
  • the substances according to the above composition are calculated to be anhydrous, but can exist as salts containing water of crystallization.
  • the sodium metasilicate can be in anhydrous form or as a pentahydrate.
  • the tripolyphosphate is preferably in the form of a hexahydrate. Since it would hydrolyze too little effective orthophosphate and pyrophosphate under conventional conditions, especially with regard to its small amount, by hot spray drying, it is mixed in dry form with the builder salt or together with the at low temperatures other components granulated in a known manner to form agglomerates
  • Component (C) preferably consists of polyacrylic acid or a copolymer of acrylic acid and maleic acid in a weight ratio of 95: 5 to 50:50, in particular 90: 10 to 40:60 in the form of the sodium salts.
  • the proportion by weight of the builder mixture is based on sodium salt.
  • Highly suitable polyacrylates have a molecular weight of . 5,000 to 50,000, particularly suitable acrylic acid-maleic acid copolymers from 25,000 to 100,000. Mixtures of homopolymeric polyacrylate and acrylic acid-maleic acid copolymer are also suitable.
  • the invention furthermore relates to detergents containing such a builder salt combination, these detergents having the following contents:
  • Surfactant combination (D) and 0 to 40% by weight of other usual detergent constituents the amount of builder salts in the detergent (based on anhydrous substance) being as follows:
  • component (C) 2 to 5% by weight of component (C).
  • the composite detergents preferably contain, in addition to the surfactants and other components
  • component (AI) 20 to 40% by weight of component (A2) 0.3 to 1% by weight of component (B) 2.5 to 4% by weight of component ( C).
  • Non-ionic surfactants from the class of polyglycol ethers derived from alcohols are suitable as low-foaming surfactants. with 10 to 22, in particular 12 to 18, carbon atoms. These alcohols can be saturated or olefinically unsaturated, linear or methyl branched in 2-position (oxo radical).
  • Their reaction products with ethylene oxide (EO) or propylene oxide (PO) are water-soluble or water-dispersible mixtures of compounds with different degrees of alkoxylation. The number of EO or PO groups given corresponds to a statistical mean for technical alkoxylates.
  • ethoxylated fatty alcohols are C- __ lg -
  • EO oleyl alcohol with 4 to 12 EO and from other native Fatty alcohol mixtures available ethoxylation products with appropriate chain and EO distribution.
  • ethoxylated oxo alcohols are, for example, those with the composition C. _, .. with 5 to 10 EO and C ⁇ ⁇ -C. - Suitable with 6 to 12 EO.
  • Mixtures of low and highly ethoxylated alcohols are characterized by increased detergency against both greasy and mineral soiling, for example those made of tallow alcohol with 3 to 6 EO and tallow alcohol with 12 to 16 EO or C 1 __ 1 _-oxo alcohol with 3 to 5 EO and C -oxo alcohol with 8 to 12 EO.
  • Nonionic surfactants with particularly low foaming are those of the general formula R- (EO) - (PO) -OH, in which x is equal to or greater than y and is a number from 5 to 25 and y is a number from 1 to 20.
  • ethoxylation products of vicinal diols, amines, thioalcohols and fatty acid amides which correspond to the fatty alcohol ethoxylates described with regard to the number of carbon atoms in the hydrophobic radical and the glycol ether groups.
  • Alkylphenol polyglycol ethers with 5 to 12 carbon atoms in the alkyl radical and 3 to 10 ethylene glycol ether groups can also be used.
  • block polymers made from ethylene oxide and propylene oxide are also suitable, which are commercially available under the name Pluronics.
  • Alkyl oligoglycosides are also suitable, preferably those with C.-alkyl groups and on average 1.5 to 8 glucose units in the hydrophilic radical.
  • nonionic surfactants or surfactant mixtures are recommended, the HLB value of which is in the range from 11 to 1 6, preferably 1 1, 5 to 15. These have sufficient resistance to phase separation.
  • suitable low-foaming surfactants are sodium soaps, possibly also potassium soaps, of fatty acids with 10 to 22, preferably 12 to 18, carbon atoms.
  • the fatty acids on which these soaps are based can be derived from natural fatty acid mixtures, for example coconut, palm kernel, tallow or rapeseed oil fatty acids, and saturated as well as monounsaturated, e.g. B. Containing oleic acid. Soaps with a high proportion of C.
  • synthetic anionic surfactants can also be present, preferably those of the sulfonate type, such as linear alkylbenzenesulfonates with essentially 10 to 13 carbon atoms in the alkyl group.
  • suitable sulfonate surfactants are olefin sulfonates and secondary alkyl sulfonates with 12 to 18 carbon atoms as well as alpha sulfo fatty acids and alpha sulfo fatty acid esters, derived from saturated C 1 __- »fatty acids or their methyl, ethyl or propyl esters.
  • sulfate surfactants may also be present, e.g. B.
  • the synthetic anionic surfactants are usually used as sodium salts.
  • Alkylbenzenesulfonates dodecylbenzenesulfonate are preferred, since they make a comparatively small contribution to the development of foam, but make a high contribution to the washing power.
  • the total proportion of surfactants is 10 to 25% by weight, based on the composition, of which 5 to 25% by weight is based on nonionic surfactants, 0 to 15% by weight on soaps and 0 to 10% by weight on synthetic anionic surfactants omitted.
  • the proportion of nonionic surfactant is preferably 8 to 22% by weight, the proportion of soap is 0 to 10% by weight and that of synthetic anionic surfactant, in particular in the form of the alkylbenzenesulfonate defined above, 0.5 to 5% by weight. -%.
  • bleaching agents such as per compounds, activators for per compounds, such as tetraacetylethylene diamine
  • Stabilizers for per compounds such as polyaminopolycarboxylates and in particular polyaminopolyphosphonates
  • Enzymes such as proteases and amylases
  • Graying inhibitors such as cellulose ethers, for example carboxymethyl cellulose, hydroxyethyl methyl cellulose and methyl cellulose and mixtures of the cellulose ethers mentioned
  • optical brighteners in particular those of the substituted bis- (1,3,5-amino-sym-triazinyl) -stilbene disulfonic acid type
  • Solubilizers such as toluene or xylene sulfonates
  • Neutral salts such as sodium sulfate.
  • water-insoluble detergent constituents may also be present, such as finely crystalline, water-containing zeolites of the NaA type with a calcium binding capacity of 100 to 200 mg CaO / g determined according to DE 24 12 837.
  • foam inhibitors such as organopolysiloxanes and mixtures thereof with finely divided SiO_, paraffins or Mikroparaf- fine long-chain, bis-acylalkylendiamine, saturated C_ 0 _ 2 "-Fett- acids as well as their mixtures in amounts of between 0.05 and 0.5 Gew. Be used.
  • the application concentrations of the composite detergents are generally 3 to 10 g / l, those of the builder salt combination 2 to 8 g / l, the use of moderately hard to soft water, ie a water with less than 12 ° dH (89 mg Ca / liter), preferably 10 ° dH or less is preferred. Examples
  • a detergent was used with a content of (in% by weight) based on anhydrous substance:
  • the washing tests were carried out in a launderometer on textile samples made from bleached nettle. Dosage: 4.0 g / l, temperature 90 ° C, washing time 30 minutes (heating period 15 minutes), rinsing three times, water hardness 10 ° dH at a Ca: Mg ratio of 5: 1. After 25 washing treatments, the textile samples were ashed.
  • the ash values (mean values from 3 control samples) are summarized in the following table.
  • test c The results show that small amounts of phosphate (test c) do not reduce the fiber incrustation, but actually favor it. Small amounts of copolymer bring about minimal improvement (experiment b). A combination of both substances leads to a considerable increase in the secondary washing ability.

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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)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Une combinaison de sels adjuvants s'utilisant dans des agents de lavage et améliorant le pouvoir détergent secondaire, comporte (A) 40 à 80 parties en poids d'un mélange de silicate de sodium ayant pour composition Na2O:SiO2=1:0,9 à 1:1,6 et de soude, le rapport en poids du silicate de sodium à la soude étant de 4:1 à 1:2, (B) 0,2 à 1,5 parties en poids de tripolyphosphate de sodium, et (C) 2 à 5 parties en poids d'un (co)polymère constitué de 100 à 50 % en poids d'acide acrylique ou d'acide méthacrylique et de 0 à 50 % en poids d'acide maléique avec un poids moléculaire compris entre 5000 et 150000 sous la forme du sel de sodium.
PCT/EP1989/000857 1988-07-29 1989-07-21 Combinaison de sels adjuvants faiblement phosphatee WO1990001534A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883825858 DE3825858A1 (de) 1988-07-29 1988-07-29 Phosphatarme buildersalzkombination
DEP3825858.7 1988-07-29

Publications (1)

Publication Number Publication Date
WO1990001534A1 true WO1990001534A1 (fr) 1990-02-22

Family

ID=6359876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1989/000857 WO1990001534A1 (fr) 1988-07-29 1989-07-21 Combinaison de sels adjuvants faiblement phosphatee

Country Status (3)

Country Link
EP (1) EP0353562A1 (fr)
DE (1) DE3825858A1 (fr)
WO (1) WO1990001534A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1322703C (fr) * 1988-10-12 1993-10-05 William L. Smith Detergent pour laveuse automatique a haute teneur en carbonate et inhibant les depots de sels de calcium
NL9000272A (nl) * 1990-02-05 1991-09-02 Sara Lee De Nv Hoofdwasmiddel.
FR2669838B1 (fr) * 1990-11-30 1994-04-01 Rhone Poulenc Chimie Cogranules spheriques de silicates de metaux alcalins et de carbonates de metaux alcalins, leur procede de preparation et leur application dans les compositions detergentes.
DK0488868T3 (da) * 1990-11-30 1996-03-18 Rhone Poulenc Chimie Builder-middel på basis af akalimetalsilicater til detergentsammensætninger
FR2691715A1 (fr) * 1992-05-26 1993-12-03 Rhone Poulenc Chimie Utilisation de silico-aluminate amorphe en tant que capteurs de précipités calciques.
GB9402301D0 (en) * 1994-02-07 1994-03-30 Brunner Mond & Co Ltd Granular builder product
DE4404561A1 (de) * 1994-02-12 1995-08-17 Henkel Ecolab Gmbh & Co Ohg Zur Herstellung lagerstabiler wäßriger Konzentrate geeignetes Waschmittelgranulat
DE19525378A1 (de) * 1995-07-12 1997-01-16 Henkel Kgaa Amorphes Alkalisilicat-Compound
FR2743085B1 (fr) * 1995-12-29 1999-02-26 Rhone Poulenc Chimie Composition detergente pour le lavage du linge contenant un silicate de sodium comme adjuvant principal de detergence

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627686A (en) * 1968-09-30 1971-12-14 Chemed Corp Machine dishwashing compositions containing sodium polyacrylate and nta
DE2243282A1 (de) * 1972-09-02 1974-03-07 Henkel & Cie Gmbh Wasch- und waschhilfsmittel
GB1595770A (en) * 1976-02-06 1981-08-19 Unilever Ltd Spraydried detergent components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627686A (en) * 1968-09-30 1971-12-14 Chemed Corp Machine dishwashing compositions containing sodium polyacrylate and nta
DE2243282A1 (de) * 1972-09-02 1974-03-07 Henkel & Cie Gmbh Wasch- und waschhilfsmittel
GB1595770A (en) * 1976-02-06 1981-08-19 Unilever Ltd Spraydried detergent components

Also Published As

Publication number Publication date
DE3825858A1 (de) 1990-02-01
EP0353562A1 (fr) 1990-02-07

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