JPH03119099A - Detergent composition - Google Patents

Abstract

PURPOSE: To provide a detergency builder additive which is usable in combination with a powdery cleaner for main cleaning, by compounding a water- insoluble alkali metal aluminosilicate, and a metal ion-capturing builder in a specific range of proportion.

CONSTITUTION: A desired additive comprises (A) 50 wt.% or more of a water- insoluble alkali metal aluminosilicate (in terms of the anhydrous form), (B) 15 to 20 wt.% of sodium carbonate, and (C) 2 to 12 wt.% of a metal ion- capturing builder comprising a water-soluble salt of citric acid or the like, and does not contain an organic surfactant substantially.

COPYRIGHT: (C)1991,JPO

Description

[Detailed description of the invention] 7. The present invention relates to a detergency builder additive containing an alkali metal aluminosilicate, an organometallic sequestering agent and sodium carbonate. It also concerns the use of detergency builder additives.

On the West German market, there are a number of Baukasten or unit-based products available, in which main washing powders contain separately packaged additives (e.g. Supplied with softeners (builders) and bleaching agents.

British Patent No. 1505274 (Colgate-Pal
IIlolive) is available in unit doses (tablets, sachets, etc.) that allow consumers to mix and prepare laundry liquids at will.
Discloses detergent compositions containing surfactants, builders, bleaches and other ingredients packaged separately.

European Patent Publication No. 2439088 ([1e
nkel) is 50-60% by weight of microcrystalline zeolite,
4-12% by weight sodium carbonate, 4-15% by weight sodium citrate, 3-5% by weight acrylic acid polymer or acrylic acid/maleic acid polymer (sodium salt)
discloses a granular water softening composition containing optionally up to 2% by weight sodium carboxymethyl cellulose, and 12-25% by weight water.

The composition can be used as an additive to supplement the performance of commercially available detergent powders.

The specific composition is 62.5 wt% (sic) zeolite^, 5.1 wt% sodium carbonate, 10.5 wt%
of sodium citrate, 4.2% by weight of acrylic acid/maleic acid copolymer, 0.3% by weight of carboxymethylcellulose, and 17.5% by weight of water.

West German Patent Publication No. 3144297A (Deg.
ussa) discloses detergency builder compositions (phosphate substitutes) containing zeolites^ and alkali metal citrates or ammonium citrate, preferably produced by spray drying. The preferred 3 mIf content of alkali metal citrate or ammonium citrate is 5 to 50
Weight%.

European Patent No. 220238 (Union Car
(bide) discloses a zeolite aggregate containing zeolite crystals and sodium citrate dihydrate in a matrix of nonionic surfactants.

West German Patent Publication No. 3316513Δ (Ben
cki-ser) is a water-insoluble aluminosilicate, at least 5% by weight of a homo- or copolymeric polycarboxylic acid or salt (e.g. acrylic acid/maleic acid copolymer);
and optionally an aminopolycarboxylic acid or a salt thereof.

West German Patent Publication No. 35348888 (Toy
.

5ada) discloses homogeneous granular detergency builder compositions containing ion exchange zeolites, sodium carbonate and other inorganic salts (eg sodium sulfate, sodium bicarbonate or sodium phosphate).

The present invention provides a detergent builder that is used for washing dirty laundry in combination with a main washing detergent powder containing one or more organic surfactants and one or more detergent builders. With respect to additives, the builder additive is substantially free of organic surfactants and (i) at least 50% by weight (on an anhydrous basis);
a water-insoluble alkali metal aluminosilicate of (ii>
15-20% by weight of sodium carbonate, and (iii) 2-20% by weight of sodium carbonate;
12% by weight of an organometallic ion sequestering agent, and the sum of (i) and (ii) is preferably at least 70% by weight.
A detergent system of the ukasten (unit configuration) type, in which the detergent system consists of separate components, namely (a)
A main wash powder comprising one or more organic surfactants and one or more detergency builders; (b) a detergency builder additive as previously described; and optionally (c) a bleach additive. Contains.

The invention further relates to a method for washing dirty laundry in a domestic washing machine using the detergent system described in the preceding paragraph, which method comprises using the main washing powder as described in (a) above. , separately introducing the detergency builder additive described in (b) above and, optionally, the bleach additive described in (c) above, into the washing machine.

In a first aspect, the invention relates to a detergency builder additive containing three essential components: an alkali metal aluminosilicate, an organometallic sequestrant builder and sodium carbonate.

It is well known that the cleaning performance of aluminosilicates is insufficient in several respects and must be supplemented by incorporating other builders, such as organometallic sequestering agents. The detergency builder additive of the present invention, which has been found to be particularly effective, has a significantly low proportion of organometallic sequestrant builder, as described in European Patent Publication No. 243908 (Henke).
Unlike the additive disclosed in I), yet surprisingly its performance as a virgoo additive is at least comparable. Lower concentrations of organic materials are environmentally advantageous because they reduce oxygen demand during decomposition.

The detergency builder additives described in European Patent Publication No. 2439088 further contain two different organometallic sequestering agents, namely acrylic acid/maleic acid copolymers (3-5% by weight, e.g. 4.2% by weight). %) and citrate (4-15 wt.%, e.g. 10.5 wt.%), while the content of sodium carbonate is 4-12 wt.% (
The total level of organometallic sequestrant builder in the specific composition is therefore 14.7% by weight, and the combined level of inorganic and Lugu is 67.6% by weight.

As described below, the present inventors found that the equivalent level (58, 52
% by weight) of zeolite and significantly higher levels (18% by weight) of sodium carbonate (total inorganic building blocks 76.52% by weight) as well as only 5% by weight of organometallic sequestrant builders (sodium, lium citrate). It has been found that equivalent or slightly better performance can be obtained from the compositions. This finding is even more surprising considering the absence of acrylic acid/maleic acid polymers, which are generally considered to be more weight efficient builders than citrate.

As shown below, particularly preferred detergency builder additives of the present invention contain citrate as the sole organometallic sequestrant builder.

The alkali metal (preferably sodium) aluminosilicate used in the detergency builder additive of the present invention may be crystalline or amorphous or mixtures thereof, and - up to: % formula % of these The material is water bound and at least about 50i
It is necessary to have a calcium ion exchange capacity of +gCaO/y. Suitable sodium aluminosilicates contain (in the above formula) 1.5 to 3.5 SiO2 units. Both amorphous and crystalline materials can be readily produced by the reaction of sodium silicate and sodium aluminate, as described in detail in the literature.

Suitable crystalline sodium aluminosilicate ion exchange detergency builders are described, for example, in British Patent No. 1473201 (ll
enkcl) and British Patent No. 1429143 (t'r
October a Gamble). Suitable sodium aluminosilicates of this type are the well-known commercially available zeolites 8 and X, and mixtures thereof. Zeolite 48 is particularly preferred.

The novel zeolite P described in the specification and claims of British Patent Application No. 8825783.7 filed on November 3, 1988 and British Patent Application No. 8910029.1 filed on May 2, 1989 in the name of the applicant is also included. It can be used in the detergency builder additive of the present invention.

On anhydrous basis, the builder additives of the present invention contain at least 50%, preferably 50 to 65%, more preferably 55 to 65% by weight of aluminosilicate.

The main feature of the builder additive of the present invention is its relatively high content of sodium carbonate, 15-20% by weight.

If sodium carbonate is used in an amount of 15% by weight or more, the amount of organometallic ion sequestrant builder used can be substantially reduced without impairing the builder effect, but if the concentration exceeds 20% by weight, the problem of too high alkalinity arises. 20% by weight, and a danger warning must be displayed depending on the legislation.
It has been found that concentrations above 20% are not necessary.

When the builder additive of the present invention is used in combination with a separate main wash powder, the builder concentration can be adapted to water hardness conditions, resulting in optimal alkalinity and cleaning performance.

Δ Long-established builder The total amount of aluminosilicate and sodium carbonate in the bilgoo additive of the present invention is preferably at least 70% by weight,
More preferably at least 75% by weight.

The content of gold-organic sequestering agent builder is 2-12% by weight. If more than one organometallic sequestering agent builder is used, the total amount should fall within this range. Preferably the content of organometallic sequestrant builder is 2 to 10% by weight, more preferably 2 to 7% by weight, optimally 4 to 7% by weight.

The organometallic sequestrant builder is preferably a polycarboxylate material. Polycarboxylate detergency builders are well known to detergent manufacturers and include polymeric polycarboxylate salts (e.g. polyacrylates, acrylic acid/maleic acid copolymers and polyacetal carboxylates) and monomeric polycarboxylate salts (e.g. nitrilotriacetate, silicon ~rate, oxydisuccinate, tartrate monosuccinate, tartrate disuccinate and carboxymethyloxysfucine-1-).

The polycarboxylate salts that can be used are not limited to the above examples.

A mixture of two or more organometallic sequestrant builders may be used if desired.

According to a preferred embodiment of the invention, the organometallic capping agent builder contains a water-soluble salt of citric acid, such as an alkali metal citrate or ammonium citrate, suitably sodium citrate. Citrate has the known advantage of being easily biodegradable and environmentally harmless.

According to a particularly environmentally preferred embodiment of the invention, the builder additive contains water-soluble citrate as the sole organometallic sequestrant builder.

Pond polycarboxylate builders known to have environmental benefits (eg, carboxymethyloxysuccinate) can also be used.

The class of polycarboxylate builders suitable for use in the detergency builder additives of the present invention includes water-soluble salts of polymeric polycarboxylic acids. Water-soluble salts of homo- and copolymers of acrylic acid (especially acrylic acid/maleic acid copolymers) are particularly suitable.

These salts, like citrate, are suitable and preferred for use in the sodium salt form.

The detergency builder additives of the present invention, which may optionally contain both polymer and citrate in a total range of 2-12% by weight, offer good performance, simplicity and ease of formulation. Considering the above, a single organometallic sequestering agent (
In particular, it is generally preferred to use citrate).

Examples of polymeric polycarboxylate salts suitable for use alone or in combination in the detergency builder additives of the present invention are listed below.

Hiro Yueni dish Naoaki each and each outfit Satooku molecules! 1 piece of polyacrylate Versico ^
l l ied 3500E5
Co11oids polyacrylate Versicol car ^l 11edE7
Co11oids 7000 Polyacrylate Polyacrylate Polyacrylate Polyacrylate Polyacrylate Polyacrylate Polyacrylate Polyacrylate Versico 1 piece ^I I 1edE9
Co11oiclsNarlex* Na
tionalLD30 ＾dhesives
Narlex* NationalLD34
＾dhesives＾cryso1 bottle-10 Rabmn & 1laas ^crysoI car LMIII-20 Rbbm & Hams ^crysol ne L-45 Rahm & tlaas ^cryso1 bottle＾1-N R61 +m & l1aas Sokalan* P^-20 ASF 0000 000 5000 000 000 500 0000 500 Polyacrylate 5okalan car P^-40 Polyacrylate 5okalan car P^-70 Polyacrylate 5okalan car P^-110 Ethylene/maleic acid EMA main methyl vinyl ether/Gantrez Kyomaleic acid ΔN119 Acrylic Rate/ Maleate 5okalan* CF2 ．． CF2 Acrylic Acid Phosphophinate DKW Car Acrylic Acid Phosphinate Be1sperse* The car represents a trademark.

ASF ASF ASF Monsunt.

AF Corporation ASF National ＾dl+esives Ciba-Geigy 5000 0000 50000 Aluminosilicate salt: present Builder ratio Aluminosilicate:Organometallic ion sequestering agent ratio is preferably 5:1 to 30:1, more preferably 10:1 to 15
:1.

The Robuilder additive of Bill-1 is suitably prepared by a process comprising dry mixing sodium carbonate with the remaining ingredients.

Alkali metal aluminosilicates are disclosed, for example, in European Patent Nos. 191187B, 1951278, 27903B8, 2-Futa 039^ and 279040^ (Degu
Suitably, it is formulated as a granular spray-dried material as described in ssa).

When the organometallic sequestrant builder is obtained in granular form, it is suitable to dry mix the builder with the granular aluminosilicate and sodium carbonate. Both sodium citrate and acrylic acid/maleic acid copolymers are suitable for formulation by this method.

Other methods include spraying the granulated aluminosilicate with an aqueous solution of the organometallic sequestering agent Bilgoo and then dry mixing the resulting granules with sodium carbonate.

Other suitable methods of manufacturing the detersive power additives of the present invention will be readily apparent to detergent manufacturers.

The detergency builder additive of the present invention may optionally contain Wl amounts of other ingredients such as processing aids, binders, inorganic salts, fragrances or colorants. Some of these minor components may be introduced directly from the precipitated aluminosilicate raw material.

As mentioned above, the detergency building goo additive is substantially free of organic surfactants. However, low levels (up to 5% by weight for rJiq, preferably 3% by weight) introduced from commercially available aluminosilicate granules, for example as binders or processing aids.
The presence of surfactants (below) is permissible.

BaukaSten 1 System In a second aspect, the present invention provides a main washing powder which is itself suitable for lightly soiled laundry and low water hardness, and a supplementary main washing powder for heavily soiled or high water hardness. Baukasten (unit construction) type detergent system in which the detergent system is provided in separate packs with a virgoo additive that can be used for The Baukasten system is environmentally advantageous in that it reduces the use of unnecessary chemicals.

The main wash powder is therefore formulated precisely enough to be used alone under suitable washing conditions.

The powder contains at least one organic surfactant and at least one detersive building block.

The total amount of detergent-active material (surfactant) in the main washing powder is suitably 2 to 50% by weight, preferably 5 to 40% by weight.
fi amount%.

The cleaning powder may contain one or more soap or non-soap anionic, nonionic, cationic, amphoteric or zwitterionic surfactants, or combinations thereof. Many suitable detergent active compounds are commercially available and are described in the literature (e.g. Sch+5artz, Perry and Berch, "5urface-Cl1ve Agents and
dDetergents”, Volumes I and ■).

Suitable detergent-active compounds that can be used are soaps and synthetic non-soap anionic and nonionic surfactants.

Synthetic anionic surfactants are well known to those skilled in the art. For example, alkylbenzene sulfonates (particularly Cm-
(sodium linear alkylbenzene sulfonates with an alkyl chain length of C+s), eleventh secondary alkyl sulfates (especially sodium Cl2Ci5 primary alcohol sulfates), olefin sulfonates, alkanesulfonates, dialkyl sulfosuccinates and fatty acid ester sulfonates. be.

Suitable nonionic detergent compounds that can be used are in particular reaction products of compounds having hydrophobic groups and reactive hydrogen atoms, such as aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides (in particular ethylene oxide alone or in combination with ethylene oxide). (propylene oxide). Specific nonionic detergent compounds include alkyl (C6-2□)phenol-ethylene oxide condensates, linear or branched aliphatic C,-2゜condensation products of primary or secondary alcohols with ethylene oxide, and ethylene oxide. and the reaction product of propylene oxide and ethylene diamine. Other so-called nonionic detergent compounds include silver tertiary amine oxides, tertiary phosphine oxides, and dialkyl sulfoxides.

Particularly preferred compounds are primary and secondary alcohol ethoxylates, especially C12-15 primary and secondary alcohols which have been xylated with an average of 5 to 20 moles of ethylene oxide per mole of alcohol.

It is also desirable to contain one or more fatty acid soaps b).

These are preferably sodium soaps made from naturally occurring fatty acids, such as those obtained from coconut oil, beef tallow, sunflower oil or hydrogenated rapeseed oil.

Detergent compositions suitable for use in automatic clothes washing machines generally contain anionic surfactants or nonionic surfactants or both in any proportion, with soap optionally present.

The main washing powder further contains one or more detergency builders. The concentration of builder in the main wash powder is relatively low since the purpose is to enhance the performance of the main wash powder in hard or medium-broken water by the additional use of detergency builder additives.

Detergency builders are well known to those skilled in the art. Inorganic builders that may be present are alkali metal (generally sodium) ortho,
Contains salts or tripolyphosphates, with tripolyphosphates being particularly effective. However, according to one preferred embodiment of the invention, the main washing powder contains less than 10% by weight of inorganic phosphates, and more preferably is substantially free of inorganic phosphates.

Phosphate-free detergency builders are also well known to detergent manufacturers. Inorganic nonphosphate builders include alkali metal (generally sodium) carbonates and aluminosilicates; specific examples of organic nonphosphate builders are listed in the description of the builder additives of this invention.

Preferably the main wash powder comprises an alkali metal aluminosilicate and/or alkali metal carbonate based builder system, an example of a carbonate-based builder system suitable for use in the main wash powder. is an alkali metal carbonate in combination with finely ground calcite as described in the specification and claims of British Patent No. 1437950 (IJni 1ever).

In contrast, according to a preferred embodiment of the invention, the washing powder contains a builder system similar to a builder additive containing an alkali metal aluminosilicate, optionally an alkali metal carbonate, and an organometallic sequestering agent builder. Preferred organometallic sequestrant builders for use in the cleaning powders are of the type cited above as suitable for use in builder additives, and the organometallic sequestrants used in the two-component The agents may be the same or different.

The preferred ratio of aluminosilicate to organometallic ion sequestering agent in the main washing powder is in the range of 5:1 to 30:1.

If necessary, the main washing powder may also contain other functional ingredients normally used in detergent powders, such as peroxy bleaches, bleach activators, bleach stabilizers, enzymes, fabric softeners, antifoam agents, anti-redeposition agents, etc. agents, sodium silicate, fragrances and other materials well known to detergent manufacturers. However, as detailed below, the bleaching component is kept separate as a second additive.
It is preferable that the laundry can be used depending on the degree of dirtiness of the laundry.

The main cleaning powder is preferably free or substantially free of inert fillers (inorganic salts such as sodium ilate) that do not contribute to cleaning performance. The same applies to builder additives and, where appropriate, bleach additives. However, small amounts of apparently active ingredients (eg inorganic salts) may be included in order to obtain acceptable powder properties such as flowability and resistance to agglomeration.

1 page m optionally and preferably [1aukast of the present invention]
The bleach additives forming part of the en detergent system suitably include persalts or peracids and may optionally be used in conjunction with bleach precursors and/or bleach stabilizers.

Bleach additives include, for example, large proportions of inorganic persalts (e.g., sodium perborate monoaqueous or tetrahydrate), lower proportions of bleach precursors (e.g., tetraacetylethylenediamine), and any suitable may contain minor ingredients such as bleach stabilizers, colorants, fragrances.

Washing 1L Ryobutsu - In a third aspect, the present invention provides the above-mentioned Baukasten
To provide a method for washing dirty laundry in a home washing machine by utilizing the flexibility of a detergent system.

For example, when washing lightly soiled laundry in soft water, main washing powder can be used alone. If the laundry is stained, it is advantageous to use main washing powder in combination with a bleach additive. Under hard water conditions, it is common to use both a main wash powder and a builder additive, along with a bleach precursor if necessary. Generally, different amounts of main wash powder, bleach and builder additives are used depending on the situation.

Main wash powders, builder additives, and bleach additives (if present) are generally packaged in separate containers within a larger outer container, allowing the consumer to determine the amounts and proportions of ingredients that best suit their individual case wash conditions. Attach instructions for use.

Naturally, it is impossible for the three components of main washing powder, builder additive, and (as appropriate) bleach additive to be used up at the same time, so it is also possible to sell these three components separately as refills. Essential for system flexibility.

The first duplex pack includes water hardness, laundry dimensions,
Attached are instructions for use indicating recommended amounts of the various ingredients under various conditions of laundry soiling level, washing machine program and other relevant parameters.

Recommended amounts and proportions will, of course, depend on the exact composition of the ingredients.

According to a preferred embodiment of the invention, the Baukaste of the invention
The various components of the n system are color coded for consumer convenience, ie, the main wash powder, builder additive, and bleach additive (if present) are given different colors. Preferably the main wash powder, which is the ingredient used in the largest amount (or the largest amount), is uncolored (i.e. natural colored) to minimize the use of colorants, and contains builder additives and bleaching (if present). Agent additives intentionally provide a distinguishable appearance through the use of colorants.

The powder may be homogeneously colored or preferably incorporated with a low proportion (approximately 0.5-3% by weight, preferably 1-2% by weight) of colored spectra, leaving the bulk natural color, and the use of colorants. Make it distinguishable by the smallest amount. In systems containing both a builder additive and a bleach additive,
The additives may include a spectrum of different colors, such as green for builder additives and blue for bleach additives. The speckles are preferably composed solely of colored particles of the component itself, or in any case of functional components present in the component in question or in another component.

The invention will now be illustrated by means of non-limiting examples. still,
Parts and percentages listed in the examples are by weight unless otherwise specified.

Builder additives were prepared by dry mixing in the following proportions.

%- Granular zeolite^1 Granular sodium citrate/dihydrate Sodium carbonate anhydrous) Natural color Green speckle 2 77.0 5.0 15.9 2.0 Fragrance 0.1 ' Wessalith from Degussa (Trademark)C
Contains SI 120.1% by weight of green colorant.

The true composition of this builder additive was as follows.

Zeolite^ (anhydrous equivalent) Sodium carbonate Sodium sulfate Sodium hydroxide Sodium citrate Non-ionic surfactant Sodium carboxymethyl cellulose Flavored water bottle 58.52 17.9 2.23 0.38 5.0 2.0 1.54 0 .1 12.32 76.0 2°9 0.5 2.6 2.0 16.0 5.0% by weight of organometallic sequestering agent builder (sodium citrate) was contained.

The ratio of aluminosilicate to organometallic sequestering agent in this builder additive was 11.7:1.

L Ai 1 person European patent publication specification No. 243908A (Hen
kel) builder additive was prepared in the following blending ratio.

%- Zeolite^ (anhydrous equivalent) 62.
5 Sodium carbonate 5.1 Sodium citrate 10.5 Acrylic acid/maleic acid copolymer'' 4,2 Sodium carboxymethylcellulose 0.3 Water
17.
53 BASF's 5okalan™ CF2° This builder additive contains a total of 76.52% by weight of zeolite^1 (anhydrous equivalent) and sodium carbonate; It contained a total of 14.7% by weight of organometallic sequestrant builder (sodium citrate and acrylic acid/maleic acid copolymer).

The ratio of aluminosilicate to organometallic sequestering agent in this builder additive was 4.25:1.

A builder additive was prepared by dry mixing in the following proportions.

%- Granular zeolide Δ 75.0 Granular sodium citrate dihydrate 5.0 Sodium carbonate (anhydrous) 20.0 Builder 1 starvation 2 ilL %- Zeolite^ (anhydrous equivalent) 57.0 76.
0 Sodium carbonate 20.0 Sodium sulfate 2.18 2.9 Sodium hydroxide 0.38 0.5 Liumium citrate 5.0 Nonionic surfactant 1.95 2.6 Sodium carboxymethyl cellulose 1.5 2.0 water
12.0
16.0 The true composition of this builder additive was as follows.

The builder additive contained a total of 77.0% by weight zeolite (anhydrous basis) and sodium carbonate and 5% by weight organometallic sequestrant builder (sodium citrate).

The ratio of aluminosilicate to organic gold sequestering agent in this builder additive was 11.4:1.

Round m A builder additive was prepared by dry mixing the following materials in the indicated proportions.

%- Granular zeolide^ 80. O Granular Acrylic Acid/Maleic Acid Copolymer 5.0 Sodium Carbonate (Anhydrous) 15.0 The true composition of this builder additive was as follows.

Zeolite^ (anhydrous equivalent) Sodium carbonate Sodium sulfate Sodium hydroxide Acrylic acid/maleic acid copolymer Nonionic surfactant Sodium carboxymethyl cellulose Water builder 1% - 60.8 15.0 2.32 0.4 Gi76. 0 2.9 0.5 5.0 2.08 2.6 1.6 2.0 12.8 16.0 This builder additive contains a total of 75% by weight of zeolite (
(anhydrous equivalent) and sodium carbonate, and 5.0% by weight of an organometallic sequestering agent builder (acrylic acid/maleic acid copolymer).

The ratio of aluminosilicate to organometallic sequestering agent in this Bilgoo additive was 12.16:1.

A builder additive was prepared according to the method of Example 1 with the following formulation.

koji Granular zeolite ＾　　　　　　　75. .

Granular Acrylic Acid/Maleic Acid Copolymer 5.0 Sodium Carbonate (Anhydrous) 20.0 The true composition of this builder additive was as follows.

Builder "1 Roasted Zeolite^ (Anhydrous equivalent) Sodium carbonate Sodium sulfate Sodium hydroxide Acrylic acid/maleic acid copolymer Nonionic surfactant Sodium carboxymethyl cellulose Water bottle 57.0 20.0 2.18 0.38% - 76, 0 2,9 0,5 5,0 1,95 2,6 1,5 2,0 12,016,0 This builder additive contains a total of 77.0% by weight of zeolite (anhydrous equivalent) and sodium carbonate, It contained 5.0% by weight organometallic sequestrant builder (acrylic acid/maleic acid copolymer).

The ratio of aluminosilicate to organometallic sequestering agent in the second builder additive was 11.4:1.

A builder additive was prepared by spraying an aqueous solution of a permanent acrylic acid/maleic acid copolymer onto granular zeolite and then dry mixing sodium carbonate and sodium carbonate speckle in the following blending ratio.

%- Granular Zeolide^ 78.0 Acrylic Acid/Maleic Acid Copolymer 4.5 Sodium Carbonate (Anhydrous) - Natural Color 15.5 - Green Speckle 2.0 Builder 11 Zeolite^ (Anhydrous) Sodium Carbonate Sodium Sulfate Hydroxide Sodium acrylic acid/maleic acid copolymer Nonionic surfactant Sodium carboxymethyl cellulose Water % - 59,28 17,5 2,26 0,39 76,0 2,9 0,5 4,5 2,03 2,6 1 ,56 2,0 12,4816,0 The true composition of this builder additive was as follows.

This builder additive contains a total of 76.78% by weight of zeolite (on anhydrous basis) and sodium carbonate, and 4.5% by weight of sodium carbonate.
of organometallic sequestrant builder (acrylic acid/maleic acid copolymer).

The ratio of aluminosilicate to organometallic sequestering agent in this builder additive was 13.11:1.

A powder for main washing was prepared by spray drying and post-addition at the following blending ratio.

%- Linear alkylbenzene sulfonate 14.40 Nonionic surfactant 6.40 Zeolite (anhydrous) 38.38 Sodium silicate 1.12 Sodium carbonate 12.60 Acrylic acid/maleic acid copolymer 4.70 Protein hydrolase 0 .60 antifoam granule wheel
4.50 Trace ingredients, salt, moisture
up to 100 *as disclosed in European Patent Publication No. 266863^ (Unile-ver).

Using this main washing powder, the following composition was prepared by dry mixing with the builder additive of Example 5 above: Sodium Perborate Aqueous Phase 74, 25
TAEDII grains (83% by weight of active substance) 2
4.75 Blue spectrum (of powder for main washing) 1.
A Baukasten detergent system was formed with a bleach additive having 0.

Recommended amounts for use in a standard washing machine (washing liquid volume 201) are shown below.

Powder for main washing 80 or 1lh (main washing) 55g (
Prewash) Builder additive 0.10.20 or 30° Bleach additive 0.20 or 30g.

The use of main washing powder and bleach additives depends on the soil type R (and therefore on the selected machine program) as follows.

Lightly soiled, commercially available test cloth (oily/particulate stains), heated to 40°C and washed for light/colored items Main washing powder 80g Lightly soiled, other washing Main washing powder 80g Bleach additive 209 Normal Stains Main washing powder 110g Bleach additive 30g Severe stains Prewash Main washing powder 55° Main washing Main washing powder 110g Bleach additive 30° On the other hand, the use of builder additives depends only on the hydraulic bottom; Appropriate recommended doses are:

Hydraulic bottom 1 (0~7° German hardness): Og water hardness 2 (7~
14° German hardness): 10g water hardness 3 (1
4~21°German hardness): 20g water hardness 4 (>
21° German Hardness): Tergotometer® experiments were conducted to demonstrate the effectiveness of builder additives in increasing 3h hard water detergency performance to soft water levels.

Experiments were conducted using a 30 minute wash cycle and the results are shown in Table 1.

"Kagoyu" (Hydraulic bottom ("DH> 5.6 17
Main washing powder (g #ri 4 4 builder additive (y #ri 0 1 reflectance increase (
ΔR4g. *) 20.1 21.2 and MJ
LL Powder for main washing was prepared by spray drying and post-addition with the following blending ratio.

12.0 6.0 8.0 1.5 37.5 12.5 1.0 2.2 1.0 0.8 3.0 14.5 100.0 European Patent Publication No. 260883A (Un
ile-ver).

This main wash powder was used to prepare the Baukasten detergent system with the builder additives of Example 1 above. ) Sodium carbonate sodium silicate acrylic acid/maleic acid copolymer sodium carboxymethyl cellulose protein hydrolase antifoaming agent granule water was prepared.

The detergency under various hydraulic bottom conditions was measured using a Tergotometer (40°C heating and 30 minute wash cycle).
(registered trademark). The cleaning power was monitored by two separate test cloths, IC5Micromatch Flecto
The reflectance at 460 nm was measured before and after the cleaning procedure with a 460 nm meter.

The conditions and results are shown in Table 2 below.

mouse! Water hardness France (“FH”) 7 20 32 46 Germany (’”DH) 4 11 18 2
Powder dosage for washing 4 bottles (g #ri 3.5 3.5 3.5 3
．． 5 Bilgu additive dosage (g#ri OO or 10 or 20 or 3 艮■
J'LL (ΔR41i.*) Test Fabric 1 (Oil/Silica/Ink on Cotton Fabric): No Bilgoo 25.33 23.03 19.73 18.03
Bilgu used -25,6325,7325,93 Test fabric 2 (kaolin/wool fat on cotton fabric): No builder 1
7.18 12.58 1'3.78 15.58 Bilgu used -18,4819,0818,18 husband 1"L
L A powder for main washing was prepared with the following blending ratio by spray drying and post-addition.

Linear alkylbenzene sulfonate Nonionic surfactant Zeolite (anhydrous) Sodium silicate Sodium carbonate Acrylic acid/maleic acid copolymer Sodium carboxymethyl cellulose Protein hydrolase Antifoaming agent ingredients Trace ingredients, salt, moisture % - 14,20 6, 20 37, 70 2,20 16,80 6,20 0,80 0, do 1.10 14.20 100.00 This main wash powder was used to run the Baukasten detergent system with the builder additive of Example 1 above. Formed.

The detergency was investigated as described in Example 7 using various test cloths.The conditions and results are shown in Table 3 below.

Sub31 Water hardness France (“FB”) F 20 32 4
6 Germany (“DH) 4 11 18
24 bottle washing powder dose (y/4) 4 4 4 4 Bilgu additive dose Cg/l) 0 0 or 10 or 20 or 3b mini J [“2” 3 engineering JtE≦su−(ΔR4* o ”)
/Test Fabric 1 (Oil/Silica/Ink on Cotton Fabric): No Bilgoo 26.16 25.25 22.71 19.
79 builder used -26,3125,2623,91
Test fabric 3 (casein on cotton fabric): No builder 26.85 26.05 23.65
19.55 Bilgu use -26,5526,2525
, 15 Test fabric 4 (ink ink/olive oil on polyester/cotton) No builder 5 F, 22 56.32 54.5
2 53.32 Bilgu use -56,5256,22
55, 62 Tergoto + l1eLer as in Example 7 and 8
was used to compare the effects of building redder additives on Example 1 and Comparative Example.

The main washing powders of Examples 8 and 9 were used with a bleach additive in the same manner as in Example 6c. Similar to Examples 6 to 8 (40°C heating and cleaning)
The cleaning power was compared using an oto-meter. The results are shown in Table 4.

Whistle Aj Round Seafood - Water hardness France ("Fl () 7 20 32 46 Germany (@ [1) 1) 4 11 18
24 Powder dose for main washing Cg/l > 4 4 4 4 Bleach additive dose (g/l) t L L
1 Builder Additive Dose Cg/l〉0 1 2 3U - 2,000U -'' Keroh (ΔR1,.hon) Test Fabric 1 (Oil/Silica/Ink on Cotton Fabric): No Builder 31.90 One Example 1 - 31.50 31.30 31
．． 10 Examples ^ -31,3030,9030,
80 Test fabric 2 (kaolin/wool fat on cotton fabric) without builder 32.35 - Example 1 - 31.55 32.85 31
．． 85 Examples ^ -31,8530,9531,
35 Test fabric 3 (casein on cotton fabric): No builder 30.71 Example 1 -31.51 31.41 30.8
1 Example ^ -31,0130,5130,41
Test Fabric 5 (Black Tea on Cotton Fabric): No Builder 12.48 - Example 1 - 16.38 18.0B 1
5.58 Example ^ -12,9813,8813
, 38 Although the builder additive of Example 1 has a substantially lower organometallic sequestering agent content and the absence of an acrylic acid/maleic acid copolymer, it generally exceeds at least the prior art builders of Comparative Example^. It will be appreciated that it functions similarly to an additive.

E19 In this example, a ΔEG Lavamat (registered trademark) washing machine, 60°C washing cycle and 2.5 AI? The effect of the builder additive of Example 1 on the detergency of the main wash powder of Example 8 was investigated in 30° (France) hard water using clean cotton sheets and terry toweling. Monitor cleaning performance with various test fabrics. The conditions and results are shown in Table 5.

November 2 The plain of Example 10 was repeated using 40° (France) hard water.

The conditions and results are shown in Table 6.

! jjj1 Water hardness (Fl() 12 Powder dosage for washing 30 bottles (, > 55 55 Bilgu additive dosage (g) Oo or 30W KU (6
8460 pieces) Test cloth 1 (brocade oil/silica/ink): No bilgoo 32.9 21.6 bilgoo used
29.61 Test cloth 6 (brocade casein):

Claims (6)

[Claims] (1) A detergency builder additive used for washing contaminated laundry together with a main washing detergent powder containing one or more organic surfactants and one or more detergency builders, the organic surfactant and (i) at least 5
Contains 0% by weight (on anhydrous basis) of a water-insoluble alkali metal aluminosilicate, (ii) 15-20% by weight of sodium carbonate, and (iii) 2-12% by weight of an organometallic sequestering agent builder. Detergency builder additive. (2) Aluminosilicate (i) and sodium carbonate (ii)
Detergency builder additive according to claim 1, characterized in that the total amount of detergency builder additives is at least 70% by weight. (3) The detergency builder additive according to claim 1 or 2, wherein the organometallic sequestering agent builder contains a water-soluble salt of citric acid. (4) Baukaste for washing dirty laundry
n (unit configuration - building block) type detergent system, comprising: (a) main washing powder containing one or more organic surfactants and one or more detergency builders; and (b) claim 1. A detergent system comprising a builder additive according to any one of claims 1 to 3 and (c) a bleach additive as an optional ingredient. (5) A claim characterized in that the builder additive (b) contains colored speckles and, if the bleach additive (c) is present, the bleach additive contains speckles colored in different colors. The detergent system according to item 4. (6) A method for washing dirty laundry in a household washing machine, the method comprising: (a) main washing powder containing one or more organic surfactants and one or more detergency builders; A method comprising the steps of separately introducing (b) a builder additive according to any one of claims 1 to 3 and optionally (c) a bleach additive into a washing machine.