Solid textile detergent formulation comprising inorganic builder

Details Solid textile detergent formulation comprising inorganic builder Solid textile detergent formulation comprising inorganic builder

1998-05-18

1999-11-30

Gupta, Yogendra

Cleaning compositions for solid surfaces, auxiliary compositions

Auxiliary compositions for cleaning, or processes of preparing

Detergent builder composition

510532, 510533, 510480, 510302, 510305, 510367, 510372, 510377, 510374, 510392, 510398, 510434, 510507, 510509, 510276, 510300, 510310, 510315, 510318, 510323, 510340, 510361, 510443, C11D 310, C11D 308, C11D 333

Patent

active

059942908

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a solid textile detergent formulation comprising inorganic builders based on silicates, aluminosilicates, carbonates and/or phosphates, glycine-N,N-diacetic acid derivatives as organic cobuilders and anionic and nonionic surfactants.
2. Description of the Related Art
Conventional powder detergents for textiles comprise large amounts of builders which are of low solubility or are insoluble, such as zeolites or silicates, which are needed to achieve a high single wash and multi wash cycle performance. This large proportion of components which are insoluble in the wash liquor also greatly impairs the overall solubility of the detergent formulation.
It is an object of the present invention to provide a solid textile detergent formulation with improved solubility of the builder system without adverse effects, in particular on the single wash cycle performance.
WO-A 94/29421 (1) discloses the use of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal and heavy metal ions inter alia in the detergent and cleaner sector. Thus, it is mentioned therein that such glycine-N,N-diacetic acid derivatives can generally be used as complexing agents or as builder in powder detergent formulations for textile laundering.
Japanese Published Specifications 1980/157695 (2) and 1980/160099 (3) describe solid detergent compositions for textile laundering which comprise N,N-bis(carboxymethyl)amino acids such as N,N-bis(carboxymethyl)alanine, surfactants, sodium metasilicate and as further builder component imidobissulfates.


SUMMARY OF THE INVENTION

We have found that this object is achieved by a solid detergent formulation which comprises aluminosilicates, crystalline or amorphous silicates, carbonates and/or phosphates, of the general formula I ##STR2## where R is C.sub.1 -C.sub.30 -alkyl or C.sub.2 -C.sub.30 -alkenyl, each of which may additionally carry as substituents up to 5 hydroxyl groups, formyl groups, C.sub.1 -C.sub.4 -alkoxy groups, phenoxy groups or C.sub.1 -C.sub.4 -alkoxycarbonyl groups and be interrupted by up to 5 non-adjacent oxygen atoms, or alkoxylate groups of the formula --(CH.sub.2).sub.k --O-(A.sup.1 O).sub.m --(A.sup.2 O).sub.n --Y where A.sup.1 and A.sup.2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C.sub.1 -C.sub.12 -alkyl, phenyl or C.sub.1 -C.sub.4 -alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each from 0 to 50, where the total of m+n must be at least 4, or phenylalkyl groups having from 1 to 20 carbon atoms in the alkyl, a five- or six-membered unsaturated or saturated heterocyclic ring which has up to three hetero atoms from the group consisting of nitrogen, oxygen and sulfur and which can additionally be benzo-fused, it being possible for all the phenyl nuclei and heterocyclic rings mentioned in the meanings of R additionally to carry as substituents up to three C.sub.1 -C.sub.4 -alkyl groups, hydroxyl groups, carboxyl groups, sulfo groups or C.sub.l -C.sub.4 -alkoxy-carbonyl groups, or a radical of the formula ##STR3## where A is a C.sub.l -C.sub.12 -alkylene bridge, preferably a C.sub.2 -C.sub.12 -alkylene bridge, or a chemical bond, and ammonium in the appropriate stoichiometric amounts,
(C) 1-40% by weight of anionic surfactants and
(D) 0.5-30% by weight of nonionic surfactants.
Component (A) is preferably present in the textile detergent formulation according to the invention in an amount of from 5 to 50% by weight, in particular 10 to 45% by weight.
Suitable inorganic builders (A) are, in particular, crystalline or amorphous aluminosilicates with ion-exchanging properties such as, in particular, zeolites. Various types of zeolites are suitable, especially zeolites A, X, B, P, MAP and HS in their Na form or in forms in which Na is partly replaced by other cations such as Li, K, Ca, Mg or ammonium. Suitable zeolites are described, for example, in EP-A 038591, EP-A 021491, EP-A 087035, U.S. Pat. No. 4,604

REFERENCES:
patent: 3849327 (1974-11-01), DiSalvo et al.
patent: 4196093 (1980-04-01), Clarke et al.
patent: 4997587 (1991-03-01), Baur et al.
patent: 5362412 (1994-11-01), Hartman et al.
patent: 5719111 (1998-02-01), Van Den Brom et al.
patent: 5750483 (1998-05-01), Welch et al.
patent: 5759978 (1998-06-01), Welch et al.
Database WPI Derwent Publications Ltd., London, GB; Class D 25, AN 94-156882 JP 06 100 884, Apr. 12, 1994.
Database WPI Derwent Publications Ltd., London GB; Class D 25, AN 81-12519D JP 55 160 099, Dec. 13, 1980.

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