DE2335044C2 - laundry detergent - Google Patents

Description

characterized in that they contain 0.1 to 5% of a concentration product which can be obtained by joint reaction (a) of an aliphatic dicarboxylic acid, (b) a hydroxy-polyoxyalkylene compound, which contains at least one polyoxyalkylene chain that is selected from a plurality of directly with one another linked oxyalkylene radicals, and (c) one of aliphatic or cycloaliphatic amino acids or lactams, aliphatic or cycloaliphatic diamines or salts thereof with the dicarboxylic acid (a) selected compound or mixtures of these amino acids or lactams and these Diamines or salts or, through joint reaction, ester- or amide-forming derivatives of the reactan - "> ten (a), (b) and (c).

25 The invention relates to detergent powders or liquids which are of particular value in the washing of polyamides containing textiles or fabrics.

It is known that some fabrics made of synthetic material in the removal of oil / grease soiling pose special problems from their surface. Polyamides, for example those that under the name "nylon" in the trade show this problem, which is referred to below under the name "Dirt detachment" is dealt with.

The object of the present invention is to provide detergent compositions ^ n available that one cause improved dirt removal in such textiles.

Certain condensation products of dicarboxylic acids, polyoxyethylene glycols and a cycloaliphatic Lactam or aliphatic diamine or salts thereof with a dicarboxylic acid are disclosed in GB-PS 11 24 271, to which reference is made here in full, and as a textile treatment agent recommended. In the case of the salts of hexamethylenediamine and adipic acid in a molar ratio of 1: 1 (hereinafter referred to as "Nylon" salt) is an example of salts that are used in these condensation products can be used. It has been found that these polymers in conjunction with certain surfactants can be used, in particular, to have good dirt removal properties in polyamide materials reach. These condensation products are obtained by joint reaction (a) of an aliphatic Dicarboxylic acid, (b) a hydroxypolyoxy-a / kylene compound which contains at least one polyoxyalkylene chain, which consists of a multiplicity of oxyalkylene radicals directly linked to one another, and (c) one of aliphatic radicals or cycloaliphatic amino acids or lactams, aliphatic or cycloaliphatic diamines or salts thereof with the dicarboxylic acid (a), and mixtures of these amino acids or lactams and these Diamines or salts thereof, or ester- or amide-forming derivatives of the Reactants (a), (b) and (c).

When fabrics containing polyamides are washed in wash liquors which contain the mixtures according to the invention contain, the fabrics are modified in such a way that oil / fat stains subsequently formed on the fabric can be removed more easily during subsequent washing. The invention provides detergent powder and liquids available, both for the formation of a wash liquor, as well as by separate .Addition of the two components that must be present together, washing liquor prepared in situ is used will.

The invention thus relates to detergent powders or liquids containing 04 to 20% of one Surfactants selected from the groups

a) ethoxylated alkylphenols in which the alkyl substituents contain 6 to 12 carbon atoms, and the ethylene oxide is present in a molar ratio of 6: 1 to 25: 1, based on the alkylphenol,

b) Condensation products of 5 to 30 moles of ethylene oxide with 1 mole of an aliphatic, straight-chain or branched unsaturated and saturated alcohol with 10 to 16 carbon atoms, or one unsaturated 'Alcohols with 18 carbon atoms or branched alcohols with 18 and 20 carbon atoms, and

c) Monoethanolamides with 10 to 14 carbon atoms in the alkyl chain, those with 3 to 25, preferably 5 to 15 Ethylene oxide units are condensed,

and which are characterized in that they contain 0.1 to 5% of a condensation product defined below contain it. The condensation product used according to the invention is one which is obtainable by common reaction of (a) an aliphatic dicarboxylic acid, (b) a hydroxy-polyoxyalkylene compound, the Contains at least one polyoxyalkylene chain which is composed of a large number of directly linked oxyalkylene radicals consists, and (c) one of aliphatic or cycloaliphatic amino acids or lactams,

aliphatic or cycloaliphatic diamines or salts thereof with the dicarboxylic acid (a) selected compound or mixtures of these amino acids or lactams and these diamines or salts or by joint reaction of ester- or amide-forming derivatives of the reactants (a), (b) and (c) .
The preferred nonionic surfactants are

Nony! Phenol, which is condensed with 7 to 12 EO units,
secondary Cu alcohols condensed with 3 to 12 EO units,
secondary Ci ₅ alcohols, which are condensed with 5 to 15 EO units, and
primary Ci ₂ - to C | 4 alcohols, which are condensed with 8 to 15 EO units.

The detergents of the invention can also contain surfactants other than the aforementioned surfactants. It has been found that relatively small amounts of anionic surfactants, unlike certain soaps, can reduce the soil release effect achieved by the practice of the invention. For example, it has been found that the addition of up to 80%, preferably not more than 40% (based on the weight of the nonionic surfactant), of dodecylbenzenesulfonate can be tolerated while still obtaining a useful technical effect. Larger proportions of non-ionic surfactants outside the definition can be tolerated. Other types of surfactants outside the definition, for example non-ionic, amphoteric or zwitterion-active surfactants, can be present in relatively large quantities without a serious loss of soil release properties Mixture contains both surfactants inside and outside of the aforementioned ^ 20, "definition, the soil release properties of the invention.; S ν j

. The detergent of the invention containing the other required or optional components, such as, _ Builder _v, for example sodium tripolyphosphate, sodium orthophosphate, sodium carbonate, salts and esters of ~ ''''s'ulphonierten fatty acids, salts of nitrilotriacetic acid, salts of ethylenediaminetetraacetic acid and phospho- '"

natural derivatives thereof, oxidized starches and polymeric builders such as polycarboxylates; other surfactants, silicates (which can be contained 25 "as builders), substances that improve soil-carrying capacity, such as sodium carboxyme-», thylcellulose or polyvinylpyrrolidone, fluorescent substances, germicides, enzymes or bleaching agents. The solid form of the agent is not subject to any restriction; all known forms, such as pellets, powder, flakes or extruded moldings, are available. The invention is also applicable to liquid funds,
In a preferred solid means, the copolymer is mixed with an organic, extrudable solid .30: to form spheres. This method is described in GB-PS12 04 123.
. Examples of agents according to the invention are described below. The following test is used to determine soil release efficiency.

Test procedure 35 ""

About 8 g of polyamide fabric or light, knotted shirt fabric is washed once in 1 liter of a wash liquor which contains 0.05% of a surfactant from the defined range of surface-active substances or surfactants and 0.10% sodium tripolyphosphate -Tometer carried out both in the absence and in the presence of 0.0015% polymer for 30 minutes at 5O ⁰ C and a water hardness of 24 ° H with, subsequent rinsing and drying. '

Samples (about 1.0 g) of the treated fabric are soiled according to a standard procedure with about 0.035 g of dirty sump oil. After about 15 minutes of aging, two soiled pieces are put together once in the Terg-O-Tometer in 1 liter of the same surfactant -System, as in the pretreatment, ^{washed for 10 minutes at 5O 0} C and a water hardness of 24 ° H. Following rinsing and drying, the reflections of the stains are measured using an Elrepho reflectometer.

example 1

A polyamide fabric sump oil soil peel test is performed using those described Method and use of a polymer made from 2 moles of adipic acid, 1 mole of polyoxyethylene glycol (molecular weight 2000) and caprolactam is produced, the latter in an amount of 35.4 percent by weight,

based on the final polymer, is present, i.e. led. The surfactant used is around a nonylphenol with 8 EO, and the content of the polymer in the wash liquor is 0.0015%. The reflection

/ of the sample piece washed in the presence of the polymer additive is 77%, which is an excellent Indicates dirt removal effect, while in the absence of the additive the reflection is only 23.5%

Example 2

Example 1 is repeated using a polymer which is composed of 2 Mo! Adipic acid, 1 mole of polyoxyethylene glycol (Molecular weight 1540), "nylon" salt in an amount of 10 percent by weight, based on the total reactants, as well as caprolactam, which in an amount of 42 percent by weight, based on the final polymer, present, is repeated. A reflection of 78% is observed, which is a indicates excellent soil release effect.

Example 3

Example 1 is repeated using nonylphenol with 12 EO as surfactant. It becomes a reflection of 78%, compared to a reflection of 35% for fabric obtained in the absence of the polymer additive has been washed

Example 4

Example 2 is repeated using nonylphenol with 12 EO as surfactant. It becomes a reflection ίο observed by 79%

Further examples are listed in Table I.

Table I.

15th

Example polymer polymer

as in example salary,%

Surfactant

% Reflection
with polymer

control

20th

5
6th
7th

^V 8

' 9

Λ IO

-11

1 2 1 2

1 2 1 2

0.0015 Ci5 secondary alcohol 5 EO 79.0

0.0015 Ci5 secondary alcohol 5 EO 79.5

0.0015 Ci j secondary alcohol 9 EO 79.5

fqj00 \ 5, secondary alcohol 9EO. 81.0

tywi5 ' secondary alcohol 15 EO 78.5

i0, b015 - secondary C # alcohol 15 EO '78.5

0.0015 Cu primary alcohol 9 EO "80.0

(0.0015 - Primary Civ Alcohol 9EO 80.0

Example 13

27.5 27.5 26.5

'30, 5

"30.5

30.5

30.5

_r 30

^'%' _R Example 1 is repeated using sodium oleate as a surfactant wiederhö] ti; pblymerem in the presence of T3AS; Zusatzstöffigewaschene tissue results in a reflection of 69%, while in the absence of the additives, fabrics washed Ge weave a reflection of 33% is achieved. ^r _s

"Examples; änionaktivenTehsiden the 3s disturbing effect full, the soaps represent, describe losung properties on Schmutzsb- J, are reported in Table II

'35 TabelJeSII

Example polymer

Polymer, content, vo '

Surfactant content,%

Surfactant

"% Reflection
f "with polymers!

control

> 40

ί
45

50

55

60

65

* 14 as in example 2 0.0015

15 as in example 2 0.0015

16 as in example 2 0.0015

17 as in example 2 0.0015 Λ 8 as in example 2 0.0015

0.05 secondary
Ci5 alcohol 9EO 0.045
0.005 secondary
C | 5 alcohol
Dodecylbenzene
sulfonate 9EO 0.04
0.01 secondary
C | 5 alcohol
Dodecylbenzene
sulfonate 9EO 0.035
0.015 secondary
C | 5 alcohol
Dodecylbenzene
sulfonate 9EO 0.025
0.025 secondary
C | 5 alcohol
Dodecylbenzene
sulfonate 9EO Example el 19

80

76

61.5

40.5

36

24

25 28

34.5

An oil pan oil dirt removal test is carried out with light, knotted polyamide shirt fabric using the method described and using a polymer which is produced by reacting 2 mol of adipic acid, 1 mol of polyoxyethylene glycol (molecular weight 1000} and caprolactam, the latter in an amount of 40 The surfactant used is a secondary Ci 5 alcohol with 9 EO ₁ and the polymer content in the wash liquor is 0.003%. The reflection of the in the presence of the polymer

Washed fabric additive is 65.5%, which indicates a good soil release effect while
the reflection in the absence of the additive is 42.5%.

Example 20

Example 19 is repeated using a polymer obtained by reacting 2 moles of adipic acid, 1 mole of polyoxyethylene glycol (molecular weight 1540), "nylon" salt in an amount of 10 percent by weight, based on the total reactants, and caprolactam in an amount of 42 Weight percent,
based on the final polymer. A reflection of 80% is achieved, which is a
indicates excellent soil release effect, as opposed to 42.5% for the fabric washed in the absence of the polymeric additive,

Other examples according to Example 19 are summarized in Table III.

Tabel in MG Capro nylon % Reflection The following non-ionic surfactants are not included in the defined class. 10 EO Reflection,% without without at Adipiri- polyoxy- Polyoxy lactam, salt, with 18EO with polymers! 26.5 game acid. ethylene ethylene Vo % Polymers] EO 32 30.5 MoIe Glycol, glycol primary Cie alcohol 18 EO 33 26th 42.5 mole 1000 61.5 62.5 34 26th 42.5 21 2 1 1540 12.5 - 65 35 26.5 42 ^ 22nd 2 1 1540 35.5 - 71 32 28.5 42.5 23 2 1 1540 56 - 63 35 424 24 2 1 2000 29 - 76 ^ 42.5 25th 2 1 2000 42.5 - 74.5 424 26th 2 1 3000 25th - 76 424 27 2 1 3000 34.5 - 71 424 28 2 1 1540 15th 30th 80 42.5 29 2 1 1540 42 10 81 hardened fatty acid 5 EO 424 30th 2 1 600 55 72 hydrogenated tallow fatty acid 20 EO 42.5 31 2 1 1540 53.5 - 63.5 hardened tallow alcohol! 424 32 1 1 1540 52.2 - 67.6 hydrogenated tallow alcohol 424 33 3 1 1000 55 - 64 primary Cie alcohol 5 34 3 1

Claims (1)

Claim:
Detergent powders or liquids containing 0.5 to 20% of a surfactant selected from the groups a) ethoxylated alkylphenols in which the alkyl substituents contain 6 to ί 2 carbon atoms, and the ethylene oxide is present in a molar ratio of 6: 1 to 25: 1, based on the alkylphenol, b) Condensation products of 5 to 30 moles of ethylene oxide with 1 mole of an aliphatic, straight-chain or branched, unsaturated and saturated alcohol with 10 to 16 carbon atoms, or one unsaturated Alcohols with 18 carbon atoms or branched alcohols with 18 to 20 carbon atoms, and c) Monoethanolamides with 10 to 14 carbon atoms in the alkyl chain, those with 3 to 25, preferably 5 to 15 Ethylene oxide units are condensed,