DE2503026A1 - SOFTENING DETERGENT WITH DISINFECTING PROPERTIES - Google Patents

Description

HOECHST AKTIENGESELLSCHAFT 2503Ö26

File number: HOE 75 / F 008 Dr. GR / Rt Date: 1/24/1975

Laundry softener with disinfecting properties

The invention relates to liquid, aqueous fabric softeners with disinfecting properties.

It is known that certain cationic quaternary ammonium compounds, if you add them to the last rinse bath after washing, for example in the washing machine, the different ones Types of fabric, such as cotton, wool or cotton-synthetic blends, give a pleasantly soft handle and at the same time antistatic properties.

Furthermore, other quaternary ammonium compounds are known which are distinguished by their good bactericidal effectiveness.

The fabric softeners based on the usual quaternary, which have hitherto generally been used in the form of aqueous solutions However, ammonium compounds combined with a disinfectant component have various disadvantages. So these preparations have a sufficiently high concentration Quaternary disinfectants have an insufficiently flowable, pudding-like consistency or the preparations are not stable and tend to separate into two phases after a short storage time, due to storage at cold temperatures a further thickening to gel consistency is caused in these preparations.

These difficulties and disadvantages of disinfecting liquid, aqueous fabric softeners are in accordance with of the invention avoided by using a · special combination of

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a) a mixture of long-chain quaternary ammonium compounds and dialkyl imidazoline derivatives as plasticizers

b) short-chain dialkyldimethylammonium chlorides as disinfectants

c) a longer-chain fatty alcohol as a solubilizer

d) a lower alkanol and optionally

e) an emulsifier

The invention thus relates to liquid aqueous preparations of fabric softeners with germ-inhibiting properties containing:

a) about 3-12 percent by weight of a mixture of two cationic fabric softeners A and B in a weight ratio A: B = 2: 1 to 1: 2,

b) about 1-6 percent by weight of a cationic disinfectant,

c) about 0.5-5 percent by weight of a longer-chain fatty alcohol,

d) about 0.1 to 5 percent by weight of lower alkanols containing about 1 to 3 carbon atoms, preferably isopropanol,

one

e) 0 to 5 percent by weight of nonionic emulsifier and

f) in addition to 100 percent by weight of water, perfume, dye and optical brighteners.

The cationic plasticizer component A is the quaternary containing lipophilic radicals known for this use

and/

Ammonium salts of the formula (I) or (II) and as a plasticizer component B is also a known alkylimidazolinium compound of the formula (III):

^{>
2 3}

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III

CH

- (CH ₂ -CH-O-) _x -H

CH ₂ ) η

(CH ₂ ) m -

In these formulas mean;

R-. and R _{2 is} alkyl or alkenyl radicals having 14-20 carbon atoms, in particular 16-18 carbon atoms.

R ₃ and R. Alkyl or alkenyl radicals with 12-16 carbon atoms ^

R _{5 is} hydrogen or an alkyl radical with 1-3 carbon atoms, in particular hydrogen or methyl;

χ 1-5, preferably 1; m and η 2 or 3 ", preferably 2 and A", Chlorine, bromine or CH “OSOr, preferably chlorine.

As a disinfecting component (b) of the invention The known quaternary ammonium compounds are suitable for preparation, e.g. B. in Soap and Chem. Specialties, March 1969, p. 47/48 are described.

The following are mainly used through the general Formula IV characterized compounds:

* 6 ¹ 7

, CH,

- 4 - ■

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in which R _g and R _{17 are} alkyl or alkenyl radicals having 8-12 carbon atoms, preferably 8-10 carbon atoms, and Y ~ is chlorine or bromine, in particular chlorine. In general, it is advantageous to use a nonionic emulsifier in the preparation of the liquid fabric softener according to the invention. Suitable nonionic emulsifiers are, for example, the reaction products of ethylene oxide with compounds containing relatively long alkyl radicals, such as alkylphenols, fatty acids or fatty alcohols, in particular reaction products of about 5-25 moles of ethylene oxide with a fatty alcohol containing 8-20 carbon atoms.

A relatively long-chain fatty alcohol is expediently added as the solubilizer component c. Particularly saturated ones are suitable aliphatic, straight-chain or branched primary alcohols with a longer alkyl radical. The alcohols that are used for useful in this invention contain about 10 to 18 carbon atoms. Synthetic, so-called Ziegler alcohols with a carbon chain distribution from C- maximum 1.5%

^C 12 ^S4 ' ^{Oi 3} ^ ^C 14 ⁴⁴ »° ± ^{3% C} 16 ^max · ¹ > ⁵ ^"

However, can any other alkyl alcohol with a carbon? Substance distribution from C- to C- _o can be used.

XO Io

Contain the liquid fabric softener according to the invention furthermore, generally bex-eits from the production of the cationic Fabric softener component A, a small proportion of about 0.1 to 5 percent by weight of lower alkanols, mostly Isopropanol or ethanol.

In addition, the liquid fabric softener can according to the invention in addition to water other common by-products such as for example perfume, optical brighteners and / or dyes.

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The production of the liquid fabric softener with disinfecting properties

a) cationic fabric softeners and

b) disinfectants

c) longer-chain fatty alcohols serving as solubilizers

d) lower alkanols and optionally nonionic emulsifiers

can be mixed with by methods known per se, for example by melting the cationic plasticizer the disinfectant, longer-chain fatty alcohol and, if necessary, an emulsifier and then admixing hot water with stirring. Most of the time at the her-? Position of the aqueous dispersions temperatures of about 50 ° C to about 100 ° C applied.

The perfume, the dye and the optical should expediently Brighteners are only added after cooling to a temperature of 40 ° C.

In another process for the production of the invention In the case of liquid fabric softener, the above components are mixed with hot water in a mixing chamber sprayed. The emulsion according to the invention is obtained as a result of the turbulence that occurs.

The liquid, aqueous fabric softeners according to the invention In addition to their softening properties, due to their content of disinfecting quaternary ammonium compounds, they also have a germ-inhibiting effect on the Laundry, for example when used in the last rinse of the Washing machine. Through their absorption on the textile material, they prevent the germs from multiplying there. This germ-inhibiting effect of the fabric softeners according to the invention is particularly desirable, since even with cotton fabrics increasingly apart from cooking the laundry

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and move on to 6O C washing.

The amount of the liquid laundry softener according to the invention Washing-up liquid with disinfecting properties is in the usual range, it is about 80-120 g per 4 kg of laundry. This corresponds to the same in terms of the softening effect Amount of 80-120 g of a commercially available fabric softener with 6 percent by weight of active ingredient.

The following examples serve to illustrate the invention. In the examples, the parts mean parts by weight and the percentages are percentages by weight, unless otherwise noted is.

Example 1 -

A mix of

4 parts of distearyldimethylammonium chloride

2 parts tallow alkylamido-ethyl ^-tallow alkyl-S-methylimidazoliniumraethosulfate

4 parts of dialkyldimethylammonium chloride with 8 to 10 carbon atoms in the alkyl radicals

2 parts of C ₁₂ -G, ₄ ~ fatty alcohol with the carbon distribution

^{C lo: C 12: C 14: C} 16 ^{= 1> 5: 54j0} ± ^{3: 44} '° - ^{3: LJ5}

0.5 part of a plant compound of 12 moles of ethylene oxide and 1 mole of an oleyl alcohol

1.1 parts isopropanol

is heated to 7O ⁰ C and mixed with the correspondingly heated to 70 C corresponding to a quantity of water supplement to 100 parts.

After cooling to 40 ° C., perfume, optical brighteners and dye can optionally also be added. The stability of the fabric softener according to Example 1 was examined using two test methods. With the fast track the preparation is subjected to a centrifuge test. The 2-hour test at 3,500 rpm did not reveal any phase separation. - 7 -

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Furthermore, the preparation was subjected as in Example 1 a ^t emperaturwechseltest. Here the fabric softeners are stored in regular cycles at 5 C, room temperature and 50 ° C. 'Here, too, there were no signs of separation after the 14-day test.

When the plasticizing effect was tested, it was found that 100 g of the liquid fabric softener according to Example 1 in the The softening effect achieved is comparable to about 100 g a commercially available liquid fabric softener with about 6% active substance content of distearyldimethylammonium chloride (example la)

When examining the disinfecting effect of the liquid Fabric softener according to Example 1 on the laundry sample treated therewith in a 60 ° C. wash shows inhibition zones of more than 2 mm in diameter in Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa and no colonies of microorganisms on the treated laundry sample at Aspergfllus niger and Candida albicans.

While on a laundry sample washed at 95 C that the then with a commercially available liquid fabric softener on the basis of distearyl-dimethylamraonium chloride (Example la) was aftertreated, compared with no inhibition of growth Microorganisms was found, has the washed at 60 ° C and with the liquid fabric softener, according to Example 1, treated laundry sample germ-reducing properties. (Compare also Table 1).

The use of the liquid fabric softener is beneficial according to the invention also on the rinsing liquor of the 60 ° C laundry, which showed no increased nucleation.

The bacteriostatic and fungistatic tests were after the hemrazone test, see "The antimicrobial finish

of textiles ", Textilveredlung, 1970, 1, pages 3-14, through -

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leads.

For this purpose, a sample of the textile material to be tested is placed in placed in a Petri dish and with the liquefied, on 45 C cooled nutrient medium, which was previously inoculated with a swept away of the selected test strain, so layered, that over the tissue sample is a 1 to 2 mm high agar layer. After the nutrient medium has solidified, the test plates are turned over and with the lid down in one. Incubator

posed.

After an incubation period of 24 hours, the growth patterns are evaluated according to the following key.

Findings - grading

Agar layer over the tissue sample shows the same growth rate of the test germ as the environment 1

Only a few colonies grow on the agar layer over the sample. Inhibition of growth in the

Compared to the surroundings. 2

No colonies 3 of microorganisms can be observed on the agar layer over the tissue sample

The agar layer over the sample is not overgrown, a clear zone of inhibition is visible around the sample, whose width does not exceed 2 mm.

An inhibition zone of more than 2 mm has formed around the tissue sample · 5

With a grade of 5, a further digit is followed by a Slash indicates the size of the inhibition zone in mm.

Another well-known method of checking germ-reducing The effect is the self-sanitizing test. Be there For example, tissue lobules post-treated with cationic surfactants with a solution of test germs (10 germs per ml) Eschericliia coli, or StaphylococQus aureus inundated. The exposure time is 1-6 hours. After dilution

■ - 9 -

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The remaining germs are removed from the solution using the cast plate method evaluated as follows:

1 ml of the dilution solution is poured out onto agar, it there is a 48-hour incubation period. Then you count them leftover germs out.

A reduction in the number of germs by 99.9% compared to the The amount of keira applied corresponds to a good one sanitizing effect.

Testing the softening effect of the fabric softener is done by assessing the handle of appropriately treated terry cloths.

Those carried out with the product according to the invention according to Example 1 Tests were carried out in the same way with the following comparison products:

Example la

Commercially available fabric softener based on distearyl

dimethylammonium chloride (6% active ingredient content)

Example Ib

Commercially available fabric softener, the di-C ₀ -C- -alkyl-dimethyl-

o XO

ammonium chloride was added as a disinfectant component and which had the following composition:

6 parts of distearyl dimethyl ammonium chloride

4 parts of dialkyl dimethylammonium chloride with 8 to 10 carbon atoms having alkyl radicals

0.5 part of an addition compound of 12 moles of ethylene oxides
1 mole of oleyl alcohol

1.0 part isopropanol as well as water, perfume, dye and optical Whitening agent in addition to 100 parts.

The results of the tests are listed in Table 1.

In the same way as described in Example 1, liquid Fabric softener with disinfecting properties

- 10 -

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The following composition is produced:

Example 2

2 parts di-tallow fatty alkyldimethylammonium chloride

4 parts of 1-Tallowalkylamido-ethyl - ^ - Tallowalkyl-S-Raethylimidazoliniummethosulfat

4 parts of di (C ₀ ZC ₁ ) -alkyldimethylammonium chloride

ο XO

2 T _e ile C _{12 14} ZC -Ziegleralkohol with the Kohlenstoffkettenvertei-

^C lo ^{: C} 12 ^{: C} 14 ^{: C} 16 ^{= X} ' ^{5: 54} ± ^{3: 44} ± ^{3: 1} ^ ^1Ung

0.5 parts of an addition compound of 12 mol of ethylene oxide of 1 mol of an oleyl alcohol

1.2 parts isopropanol

Example 3

4 parts of di-tallowalkyl-monomethyl-mono-ioxy-propyl-ammonium chloride

2 parts of 1-tallow alkylamido-ethyl - ^ - tallow alkyl-S-methylimidazolinium methosulfate

4 parts of Di (CgZC ₁ ) alkyldimethylararaonium chloride 2 parts of C -. ^ / C ^ ₄ Ziegler alcohol with the carbon chain distribution ^C 1o ^{: C} 12 ^{: C} 14 ^{: C} 16 ^{= 1) 5: 54} ± ³ : 44+ 3: 1.5

0.5 part of an addition compound of 12 mol of ethylene oxide and 1 mol of an oleyl alcohol

1.3 parts isopropanol

The application properties of the products of Examples 2 and 3 with regard to stability properties, assessment the handle and the germ-reducing effect on textiles treated with it are comparable to those of the liquid Fabric softener according to Example 1. (see Table 1).

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TABLE

Example operational

Germ reduction handle

Stability Viscosity (cPs)

amount of inhibition zones per 4kg test staph. Laundry aur. E-coli

120 g

It

Self-cleaning test Staphaur. 'E-coli

5/4 4th 99.9% 99.9% 1 1 90.0% 90.0% 5/4 4th 99.9% 99.9% 5/3 4th 99.9% 99.9% 5/4 4th 99.9% 99.9%

170

99.9% very soft no separation

μ it _1O o

"not stable + approx 4000 ++

"no separation 150

"" 160

++ gel-like consistency, not flowable

+ after 12h separation in two phases (temperature change test)

Claims (3)

PATENT CLAIMS [y. Containing liquid, aqueous preparations of fabric softeners with germ-inhibiting properties a) about 3 Ms 12 percent by weight of a mixture "A) quaternary ammonium salts containing lipophilic radicals ... B) alkylimidazolinium compounds containing lipophilic radicals fertilize
in a weight ratio of 2: 1 to 1: 2 as a plasticizer component, b) about 1 to 6 percent by weight of a cationic disinfectant agent, c) about 0.5 to 5 percent by weight of a longer-chain fatty alcohol d) about 0.1 to 5 percent by weight of lower alkanols containing about 1 to 3 carbon atoms, e) from 0 to about 5 percent by weight of a nonionic emulsifier s and f) in addition to 100 percent by weight of water, perfume, dyes and optical brighteners. 2. Liquid fabric softener according to claim 1, characterized in that that they are used as cationic plasticizer component A) compounds of the general formula I and / or II 609831/0930 CH ₅ IJ- (CH ₂ -CH-O-) _χ -Η ^R 5 HOE 75 / F 008 and as plasticizer component B) an alkylimidazolinium compound of the general formula III (CH ₂ ) n (CH ₉ ) m - NCORy ₁ H. included, where in these formulas R. and Rp for alkyl or Alkenyl radicals with 14 to 20 carbon atoms, R- * and R ^ for Alkyl or alkenyl radicals with 12 to 16 carbon atoms, R- for Hydrogen or an alkyl radical with 1 to 3 carbon atoms, χ for 1-5,, m and η for 2 or 3 and A ~ for chlorine, bromine or methosulfate. 3. Liquid fabric softener according to claim 1 or 2, characterized characterized in that they use compounds of the general formula IV as a cationic disinfectant IV in the Rg and Ry alkyl or akenyl radicals with 8 to 12 Carbon atoms and Y ~ chlorine or bromine. 609831/0930