DE3544762A1 - LIQUID SOLID DETERGENT - Google Patents

Description

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description

The invention relates to a composition of fabric softening agent and liquid heavy-duty detergent, especially a liquid detergent, the surfactant and builder components together with a swelling bentonite and a low molecular weight polyacrylate in an aqueous medium contains. The product of the invention has improved, consistent viscosity or thickness even after one month Storage, is easy to pour and a good laundry detergent and softener.

Heavy-duty liquid detergents that are suitable for washing textiles in the machine are both on the market as well as in various patents and in the literature. Bentonite was already in particulate form Detergent compositions incorporated as fabric softeners and in aqueous compositions used as a thickener that can help remove insoluble particulate substances such as abrasives to keep suspended in a liquid medium. According to U.S. Patent 4,469,605, bentonite was found to be a fabric softener Component for the production of a fabric softener liquid heavy-duty detergent used with a stability that is considered to be acceptable. However, it was found that the detergent compositions according to this patent specification, although they are stable and a relative Have constant viscosity during storage, provided they are produced on a laboratory scale or in a pilot plant often become thick in storage when manufactured on an industrial scale.

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The object of the invention is to make available textile-softening liquid heavy-duty laundry detergents based on bentonite as a textile softening agent, the viscosity and thickness of which ^is stable even after prolonged storage.

To solve this problem, according to the invention, a textile-softening, liquid heavy-duty laundry detergent is used with a density in the range of 1.15 to 1.35

-J ₀ g / ml at room temperature, a pH in the range from 9.5 to 11 and a viscosity in the range from 1000 to 5000 «pe, which does not rise above 5000 or 6000 cps after 30 days of quiet storage at room temperature, which is characterized by a content of 5 to 15% alkali metal (linear or branched, higher) alkylbenzenesulfonate, in which the higher alkyl has 10 to 16 carbon atoms, 1.5 to 5% alkali metal alkyl polyethoxy sulfate, in which the alkyl has 10 to 16 carbon atoms and the Polyethoxy comprises 2 to 11 ethylene oxide groups, 5 to 25% water-soluble builder salt, 5 to 20% of a swelling bentonite, 0.05 to 0.5% water-soluble polyacrylate with a MW in the range 1000 to 5000 and 40 to 75% water. The liquid detergent described is an economically acceptable heavy duty detergent which satisfactorily removes both oily and particulate soil from textiles and at the same time deposits enough bentonite on these textiles to make them noticeably soft. the

_The compositions described in 3 q can also be used to pretreat heavily soiled areas such as collars and cuffs of the textiles to be washed. In this treatment, the presence of the bentonite in the liquid, which can be applied directly to the dirt spots with gentle rubbing, is helpful for the solution and / or removal

of dirt viewed.

The anionic surfactant mixture employed in the liquid detergents of the invention is a mixture of linear ones 5 or branched (preferably linear) higher alkyl benzene sulfonate and alkyl polyethoxy sulfate. Although other water-soluble, linear, higher alkylbenzene sulfonates are also present in the formulations according to the invention can be, for example as potassium salts and in

1Ö some special cases as ammonium and / or alkanolammonium salts, the sodium salt has been found to be most preferred, as is the alkyl polyethoxysulfate surfactant ingredient is applicable. The higher alkyl group of the alkylbenzenesulfonate is from 12 to 16, preferably 12 to 15, particularly preferably 12 to 13 and most preferably 13 carbon atoms. That AlkylpQlyethGxysulfatfdas also as sulfated, polyethoxylated, higher, linear alcohol or as the sulfated condensation product of a higher fatty alcohol can be referred to as ethylene oxide or polyethylene glycol has an alkyl group with 10 to 16, preferably 12 to 15, e.g. about 13 carbon atoms and over 2 to 11, preferably 2 to 7, particularly preferably 3 to 5 and most preferably 3 or about 3 ethylene oxide groups. Under appropriate circumstances, other anionic surfactants such as fatty alcohol sulfate, Paraffin sulfonates, olefin sulfonates, monoglyeeride sulfates, Sareosinate, SuIfosuecinate and the like surfactants preferably acting as alkali metal, e.g.

Sodium salts, may be present, sometimes adding the Partially replace the aforementioned surfactants, but mostly in addition to these surfactants. Normally these other surfactants are sulfated or sulfonated products (usually as sodium salts) and contain long chain (8 to 20 carbon atoms) linear or Fatty alkyl groups. In addition to such other or complementary anionic surfactants, non-ionic surfactants can also be used

be present and amphoteric surfactants such as the Neodols from Shell Chemical Company, the KondensationsprocLakte of ethylene oxide and higher Fettaikoholen are, for example, Neodol 23-6.5, a condensation product of atoms eira.es _'<5 higher fatty alcohol having about 12 to 13 carbon'"<s and about 6.5 moles of ethylene oxide Examples of fixed examples of the various surfactants and surfactant classes can be found & a

Refer to Surface Active Agents, Volume 2, by Scnwarrta, 'I.

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Perry and Berch (Interscience Publishers, 1958) ixad ■

; -IQ in a series of yearbooks entitled McCxxtcheons' i ^! Detergents and Emulsifiers, for example the 1969 edition.

_{The builder salt combination of} the invention, which satisfactorily improves the detergency of the anionic surfactant mixture, creates the desired pH in the liquid detergent and the wash water, and interacts with the surfactant and the etonite in the washing and softening process, is a mixture

P ₀ of sodium tripolyphosphate and sodium carbonate. In some cases, incompletely neutralized tripolyphosphate can be used, but in most cases the sulfate used is penta-sodium triphosphate, Na ₅ P ₃ O ₁₀ . Of course, under certain circumstances, for example in the presence of potassium salts of other substances, an ion exchange in an aqueous medium can lead to the presence of salts other than sodium tripolyphosphate. For the purposes of the invention, however, it is assumed that iodium tripolyphosphate, as the pentasodium salt, the material which is normally added to the mixer for the preparation of the liquid detergent according to the invention, is the tripolyphosphate used.

g _r Other preferred builder salts, which instead of tsiatrium tripolyphosphate and sodium carbonate or in addition

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Sodium citrate and potassium citrate as well as sodium nitrilotriacetate (NTA) can be used. Some of the corresponding potassium salts can also be used instead of these other builder salts. Of course, various mixtures of the mentioned water-soluble builder salts can be used. That tripolyphosphate-carbonate gomic mixture has been found to be most preferred, although the others Builders and mixtures thereof also effective f *

-10 are. To supplement can * still other builders such as used ^ described below .. to the quantities / ^r of the above builder in addition. Other phosphates such as tetrasodium pyrophosphate ■ or tetrapotassium pyrophosphate, sodium bicarbonate, sodium

-15 trium sesquicarbonate, sodium gluconate, borax, sodium silicate and sodium sesquisilicate find use. Also useful are those disclosed in U.S. Patent 4,144,226 and others Monsanto patents described polyacetal carboxylate builders under the trade name Builder U are available. Usable, water-insoluble builders include the zeolites such as zeolite A, mostly in the form of its crystal hydrate, although amorphous zeolites can also be used. It's a feature of the invention that sodium silicate is not necessary to be an effective heavy duty detergent softening composition produce »which is why this silicate generally from the formulations according to the invention is omitted and thus undesirable properties that it may have avoided. For example is every possibility of the silicate, with other components of the liquid detergent like zeolite, sodium carbonate or other builders to react to form insoluble products which have a tendency to to settle on the laundry and impair the luminosity of the colors of these laundry, avoided. The absence of silicate in the washing medium also makes

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the formation of insoluble, silicon-containing decomposition products of the silicate, which the liquid detergent does not and make the laundry easily unsightly if it is visible or on in the liquid detergent deposited in the laundry.

The bentonite used is a colloidal clay (aluminum silicate), which contains montmorillonite. The most valuable type of bentonite for making those according to the invention Base bead is what is known as sodium bentonite (or Wyoming or western bentonite) is usually known light to off-white or a brown, extremely fine powder that is a colloidal suspension in water with strong thixotropic properties. In some cases, a potassium bentonite can be used instead or a mixed sodium / potassium bentonifc can be used. The swelling capacity in water is such Clay mostly in the range of 3 to 15 or 20 ml / g, preferably 7 to 15 ml / g, its viscosity in 6% The concentration in water is mostly 3 to 30 cps, preferably 8 to 30 -epe ·. Preferred source bentonites of this type are sold under the tradename Mineral Colloid as industrial bentonites by the Benton Clay Company sold. These materials are the same as those previously sold under the name THIXO-JEL selectively mined and enriched bentonites. Most valuable are those who are as Mineral Colloid numbers 101 etc., corresponding to THIXO-JEL numbers 1, 2, 3 and 4. These Materials have pH values (6% concentration in water) in the range of 8 to 9.4, maximum levels in free moisture (before addition to the liquid detergent medium) of 4 to 8% and specific weights of about 2.6. From the powder quality of these materials

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at least about 85% will pass through a 74 (200 mesh) screen opening. Preferably all of the bentonite goes through a 200 mesh screen opening, most preferably the total amount through a No. 325 Sieve opening goes so that the equivalent diameter of the bentonite is equal to or less than 74 Miteeoa and preferably approximately equal to or less than 44 ΜϊΊβχοη is. An advantageous supplier for fine particles Bentonite of satisfactory color is the American- 'ίο Colloid Company. From the bentonites she delivers corresponds to the sold as AEG 325 bentonite

Mineral Colloid's and THIXO-JEL's previously sold. Although enriched Wyoming bentonite as a component of the liquid detergent compositions according to the invention

* 15 settlement is preferred, other bentonites including synthetic bentonites (which are produced from bentonites with exchangeable calcium and / or magnesium by sodium carbonate treatment) can also be used for incorporation into the compositions according to the invention. Typical chemical analyzes of some bentonites that can be used according to the invention result in: 64.8 to 73.0% SiO ₂ , 14 to 18?, Al ₃ O ₃ , 1.6 to 2.7% MgO, 1.3 to 3.1% CaO, 2.3 to 3.4% Pe ₂ O ₃ , 0.8 to 2.8% Na ₀ O, and 0.4 to 7.0% K ₀ O.
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The use of bentonite as a fabric softener in the liquid compositions according to the invention offers the advantage that the bentonite does not have to be dried, for example in a spray dryer, and therefore avoiding the risk of the bentonite becoming immobilized on the plates that make it up loses its softening ability due to overdrying. It is also unnecessary to use the detergent composition to give the invention a formulation, 35

the rapid disintegration of the detergent pellets in the washing water to release the bentonite particles ensures that these particles are not agglomerated into hard masses in the liquid detergent, that may take additional time to decay.

The polyacrylate used is a sodium polyacrylate; low molecular weight, which is usually in the range from about 1000 to 5000, preferably from 1000 to 30000, and particularly preferably from 1000 to 2500, for example about 2000. The average Molekulargewicbrt is usually in the range from 1200 to 250o _r example at about 2000. Although sometimes other polyacrylates instead of the sodium polyacrylate described can be used as other Alkalimetallpolyacrylate, it is preferred that such replacement, if any, Hur done in small amounts and it is preferred that the polyacrylate employed is sodium polyacrylate. These materials are sold by Alco Chemical Corporation under the name Alcosperse. The sodium polyacrylates are available as clear, amber-colored liquids or powders which are completely soluble in water, the solutions having a solids content of about 25 to 45%, for example 30%, and the pH of these solutions or a 30% strength aqueous solution of the powder is in the range of about 7.0 to 9.5. Among these products, the preferred ones are currently used by Alco Chemical Corp. sold as Alcosperse 104, 107, 107D, 109 and 149 with Alcosperse 107D, a 100% solids PTxlver being most preferred, although Alcosperse 107, a 30% aqueous solution, is used instead with little different results can. Both are polyacrylates, whereby-

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the liquid (107) has a pH in the range of 8.5 to 9.5 and the pH of the powder (107D) at a concentration in water of 30% is in the range of 7.0 to 8.0. 5

The only other necessary component of the detergents according to the invention is water. Usually the hardness of this water will be less than about ppm than CaCO ₃ , preferably less than 150 ppm.

It may often be desirable to use deionized water, although often tap water with a hardness content under 50. or 100 ppm is also reasonably satisfactory is. Albeit harder water for the production of the liquid detergents according to the invention with success can be used, it is believed that softer water is less likely to that undesirable substances are formed that adversely affect the appearance of the liquid detergent or the could accumulate in an undesirable manner on the laundry during washing.

In the liquid detergents, various additives can be both aesthetic and functional Kind of be present, like fluorescent brighteners, perfumes and dyes. To the fluorescent brighteners include the well-known stilbene derivatives including cotton and nylon lighteners as they are under the Tinopal trade names are sold, e.g. 5BM. Perfumes that are commonly used include essential oils, esters, aldehydes and / or alcohols, all of which are known in perfumery. The coloring Substances can include dyes and water-dispersible pigments of various types, including Ultramarine blue. Since the bentonite in the liquid detergent has a lightening effect, the product often lies

in attractive / a pastel tones. In addition, titanium dioxide can be used to change the color of the product lighten or whiten it. There can be inorganic filler salts such as sodium sulfate and sodium chloride be present as well as preventing reprecipitation Substances such as sodium carboxymethyl cellulose; Enzymes; Bleaching agent.1; Bactericides; Fungicides; the foaming preventive substances such as silicones; anti-pollution substances such as copolyester; Protective fabrics like formalin; Foam stabilizers such as lauric myristine diethanolamide; and co-solvents such as ethanol. Normally the individual amounts of such additives or auxiliaries are less than 3%, often less than 1% and sometimes less than 0.5%, with the exception of fillers and solvents that may be present and additional surfactants and builders, the amounts of which can sometimes be higher, such as 10%. The total amount of additives including not certain surfactants and builders normally do not exceed 20% of the product and are preferably less than 10%, particularly preferably less than 5% thereof. Of course, the used auxiliaries or additives are allowed do not interfere with the washing and softening action of the liquid detergent and the instability of the Do not raise the product while standing. Also, they must not cause any significant deposits to form on the Cause textiles.

The proportions of the various components in the liquid Laundry detergents of the invention are 5 to 15, preferably 6 to 12, more preferably 8 to 10, and most preferably about 9% sodium (linear, higher) alkyl benzene sulfonate; 1.5 to 5, preferably 1.5 to 3, particularly preferably 1.7 to 2.7 and most 35 preferably about 2% sodium alkyl polyethoxy sulfate; 5 to 25, preferably 9 to 22 and particularly preferred

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about 12 to 19% builder salt; 5 to 20, preferably 8 to 15, particularly preferably 10 to 14 and most preferably about 12% swelling bentonite ; and 40 to 75, preferably 50 to 70, more preferably 55 to 70, and most preferably about 60% water. If the builder salts are sodium tripolyphosphate and sodium carbonate, their amounts are usually 7 to 15, preferably 9 to 13 and particularly preferably about 11% tripolyphosphate and 2 to 7, preferably 3 to 6 and particularly preferably about 4% sodium carbonate, the ratio of tripolyphosphate being to Garbonate is in the range of 2: 1 to 6s1.

The liquid detergents can be prepared by suitable mixing together of the various constituents, the bentonite preferably being added to a premix of the main amount of water with tripolyphosphate, carbonate, CMC and the anionic surfactant. For example, the polyphosphate and carbonate in finely divided form (usually fine enough to pass a 94 micron sieve according to No. 160) can be mixed with and dissolved in most of the water »after which the CMC and the anionic surfactant are added, then the bentonite, polyacrylate and the rest of the ingredients of the formulation in any order. The amount of retained water is then added to the remainder of the liquid detergent and causes the thickened liquid to be diluted to a desired apparent viscosity.

Experience has shown that the desired proportion of water that is retained and in the production is added last, typically 5 to 20% of the final liquid detergent, e.g.

10% of the same. During the mixing of the various constituents with the aqueous medium, and especially when the bentonite and the residual water have been added, it is important to keep the mixture moving, for example by continuously mixing or stirring it. It is preferred never to turn off the mixer and run the process continuously, which usually takes about 3 to 30 minutes . ⁴ ^ ! Required. Although the water can be heated to accelerate the dissolution of the various constituents of the product contained therein and to promote the dispersion of the bentonite, this is not necessary, water at room temperature, for example a temperature in the range from 15 to 30 ^° C , for example 20 to 25 ° C, can be used.

The viscosity of the liquid detergent according to the invention is usually in the range from about 1000 to 2000 pu, for example about 1500 ep & immediately after the production process has ended. The liquid detergent is intended for packaging in and dispensing from comparatively narrow-necked glass or plastic bottles, from which it must be pourable at the beginning and after normal aging. If the polyacrylate is omitted from the formulation, it has been shown that the commercially available liquid detergent is initially thicker and then becomes more viscous on standing, so that its viscosity after about one month of storage at room temperature from about 3000 to over 18000 β ^ β "may be increased. * When 18000 ejss is the liquid detergent, and requires too thick to be pourable satisfactorily * a manner that it shakes the consumer or stirred to dilute it sufficiently so that it can be poured from the bottle. Needless to say, such thickening behavior

is not wanted. The preferred viscosity of the liquid detergent according to the invention is about 4000 ° s + 1000 -e ^ a and viscosities in this order of magnitude are preferred by consumers. It has been shown that when using the polyacrylate component and the formulation according to the invention such as that of Example 1, the viscosity after about one month of storage has risen to about 4000 ees wiP «· * (4050" -epe after 28 days) and that further storage The indicated viscosities were measured with a Brookfield LVT viscometer, with a spindle No. 2 the viscosities below 2000 epe, a spindle No. 3 the viscosities

w \ Vai in the range of 2000 to 9000 e ^ s, and with a spindle No. 4 at viscosities above 9000 -ej & s-. All viscosities were measured at 12 rpm and 25 ° C.

The following examples are intended to illustrate the invention. Unless otherwise stated, in the examples, the description and the claims all parts are by weight and all temperatures are in ⁰ C.

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By apple 1

Examples

Sodium (linear) tridecylbenzene sulfate Sodium alkyl polyethoxy sulfate (alkyl = linear

Alkyl of 12 to 15 carbon atoms; Polyethoxy =

3 ethoxy groups)

Pentanatrhimtripolyphät _:

Sodium carbonate (anhydrous) Sodium carboxymethyl cellulose Sodium polyacrylate (M.G. = 2000) titanium dioxide Formalin

Bentonite (44 ΜΚββη corresponding to 325 mesh, American Colloid Co. 325 AEG) Fluorescent brightener (Tinopal LMS-X)

[ClBA-GEIGY]) Perfume

Dye (Cl Acid Blue 9 / CI 42090) Pigment (CI Pigment Blue 29 / CI 77007) Water (desalinated)

percent

8.3 2.2

■ '11.0

4.0% 0.2

0.15

0.5

0.2

12.0

0.3

0.4

0.0045

0.04

60.7055

100.0

About 84% of the amount of water intended for the formulation was in a suitable mixer, for example a vertical, cylindrical tank with heating and cooling devices and a connection to a drainage pump given the formulaic amounts of polyphosphate and carbonate (with particle sizes that

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through a 94 - sieve opening according to No. , 160 go) was added while stirring (with a

"ι><mixer Ligjlitnin-type), then the CMC and subse-" ßend admixed with the anionic surfactants and finally the other components in any suitable order. The rest of the water was added, the mixture is diluted, then the perfume added, thereby obtaining mixed,

_Jcr and the product was ready to leave the mixer in narrow neck

to be pumped into bottles that serve as dispensing containers. During the mixing, which took a total of about 9 minutes, the added materials and the end product had a temperature of about 20 ^° C. In some cases, the temperature of the water and the other ingredients can be increased to 40 ° C. to 50 C, so that the temperature of the finished product is about 30 to 40 ⁰ C, the mixing time can be shortened to about 5 or 6 minutes.

The liquid detergent obtained has (at room temperature) a viscosity of about 1550 eps and

can be satisfactorily obtained from a plastic bottle 30

Pour out, which has an emptying opening of about 2.5 cm. The detergent has a pH of around 10.5. It was used to wash a mixed load of soiled laundry, including items made of cotton and polyester / cotton included with particulate-35

shaped dirt and soiled with sebum dirt

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was. The liquid detergent was placed in the drum of a standard washing machine / using about 1/2 measuring cup of the liquid detergent per wash program (to produce a concentration of liquid detergent in the wash water of about 0.18%). The temperature of the washing water was 21 ⁰ C (to test the washing ability of the product in "cold" water), the water had a mixed calcdum and magnesium hardness «? of about 150 ppm as CaCO ₀ . After washing the laundry and the test pieces, they were either line dried or dried in a machine (a conventional clothes dryer).

The same measures were taken with a comparative washing, medium repeated in which the sodium polyacrylate was omitted and replaced with water.

Both the sodium polyacrylate-containing composition of the invention and the comparative composition are excellent fabric-softening detergents! But the product according to the invention is far superior in one essential feature, namely the retention of a satisfactory viscosity during storage - the viscosity of the product according to the invention after 5 days was 2580 ep & , whereas that of the comparison product 9400 -eps- was? after 14 days the viscosities were 3400 and 13500 epej, respectively, after 21 days the respective viscosities were 3500 epe and 14500 % e

after 28 days they were 4050 and 18500 respectively. At 4050 > epa the product could still be poured from the bottle, but at 18500 eps it was not pourable and had to be shaken or stirred in order to be dispensed. After 28 days after production, the viscosity of the formulation according to the invention no longer rose noticeably, while further viscosity increases

Not particularly wrestled with the comparative product
Are important because the product has a viscosity
over 18000 -ej & s- is not for sale anyway.

From the experiment it can be seen that the presence

a very small amount of sodium polyacrylate significantly to stabilize the viscosity of the described
Contributes to storage of detergent compositions,
an effect that was not foreseeable.

The liquid detergent of the invention has an attractive, light blue, uniform appearance and sets j not to different material layers during storage j

ten off. · |

In addition to its usefulness as a detergent {

for the machine, the product of the invention can also \

extremely difficult for hand washing and pretreatment

dirty spots. In order to be able to- I

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laundry a maximum bentonite deposit on the laundry §

to achieve and thereby the softening effect to |

improve, one lets the washing solution from the washing drum I

mel down through a floor drain, so that it is through I.

the laundry flows, after which the laundry may be rinsed in a conventional manner i. When used for pre-treatment '1

The liquid detergent |

preferably undiluted {although also dilutions |

can be used) on the soiled areas |

brought and rubbed into this. With such a |

The bentonite supports application and rubbing in \

the surfactant in loosening and removing oily or j

particulate! Dirt and adheres at the same time | the fibers of the laundry, thereby softening them

will. Such a softening of the material can
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help to make this point less in the future

dirty and the dirt holds less, in particular when it comes to shirt collars or cuffs.

Example 2

A liquid detergent was formulated like that of Example 1 using 9% of a linear dodecylbenzenesulfonate instead of the 8.8% linear iTridecylbenzenesulfonat, 2% sodium alkyl polyethoxy sulfate, in which the alkyl 12 to 13 carbon atoms and the polyethoxy has an average of 6.5 ethoxy groups, instead of the 2.2% of the previously applied, _ig 0.2% Alcosperse 107 (solids content basis) instead of Alcosperse 107D (used in example 1), 11% STPP, 6% of sodium carbonate, 15% of bentonite (mineral Colloid 101), the above- mentioned auxiliaries and 55.7% tap water with a hardness of 100 ppm as CaCO ₃ . The additional sodium carbonate improves the miscibility of the various components during production. The replacement of the surfactants does not significantly affect the properties of the product. The product was made in essentially the same manner as described above.

The liquid detergent is a stable, pourable liquid which exhibits the desired cleaning and softening properties, which have been described for the liquid detergent of Example 1, both when washing by machine and by hand or when pretreating the laundry. The viscosity does not exceed 5000 eps \ after one month of storage at room temperature

Example - 3

A liquid detergent was produced like that of Example 1, but in which only 2% sodium carbonate was used with a corresponding increase in the water content. Although the mixture had a reduced soda content, it could be processed, which is a valuable detergents and softeners f ^ur cotton and synthetic materials as well as for pre-treating the same even in a final product with the desired properties. Upon addition of 0.5% sodium carboxymethylcellulose to the formulation of a part instead of water will result in an improved whitening of the laundry without appreciable - \ 5 decrease in the softening effect because of the re-precipitation inhibiting activity of the CMC.

In other modifications of the invention, the proportions of the various components of the liquid detergent of Example 1 were changed by + 10% or + 20% without departing from the ranges given in the description. Stable, pourable, liquid detergents with good cleaning and softening properties were obtained. In some of these products it may be desirable to incorporate a larger amount such as 10% zeolite A or up to 4% sodium silicate with a Na ~ 0: SiO _o ratio of about 1: 2.4, although the silicate is often not desired. In the presence of zeolite, the silicate is normally left out in order to avoid the deposition of zeolite-silicate aggregates or reaction products.

As you can see from the description and the examples are the textile-softening heavy-duty detergents <?. er Invention stable, uniform, attractive and effective

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sam. Despite the presence of a considerable amount of gelling agent (bentonite) in a liquid medium, they do not form gels which give rise to complaints and remain pourable on storage. Despite la-agen ~. # 5 Storage in which the suspended bentonite innicj3in? ? J i exposed to contact with surfactants and inorganic BuilderssjLzen in an aqueous medium / t ^ not aglonaiiriert "* he significantly and retains its ^{WeichmachiÄigs-:} effective when applying the mentioned surfactants Uncel Builder ₁₀ in an aqueous medium that also Natriurnpolyaujrylat ·.. * contains a liquid detergent is generated · despite the content of a considerable amount of 'öuellben ^ ■

_n l tonit remains liquid and pourable and its physical properties

metallic and chemical properties retains iie: ■ '- allow ^ _5, that it is deposited on the laundry and ils lubricant for the fiber of the same acts woätiirch such laundry weichgemschfc wircL Moreover τζΊτϋί, as mentioned above, by applying the liquid medium, the risk that the bentonite is deactivated by overheating wi_-s, for example in a spray drying tower, eliminated.

The liquid laundry detergents of the invention are additional in addition, that they are valuable products for washing with the machine and by hand, also for pretreatment stained areas in the laundry highly suitable, it is assumed that the bentonite is used to remove the stains and soften the leaks Body contributes (and the product then amth

₃ _ is used for washing purposes). Thus, it follows from the above listing of the features and advantages of the invention that it brings a significant advance in the detergent sector because it provides the convenience of a non-gelling liquid detergent

_C g for both cleaning and softening laundry

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(as well as for the pretreatment of the same) permitted, whereby f excellent anionic surfactants are used and it is not necessary with these anionic

Cationic surfactants with adverse chemical reactions |

Materials such as quaternary ammonium salts for softening i

to build in. In addition, the |

Bentonite environmentally friendly like the quaternary f

Ammonium salts and do not cause any %

undesirable accumulations of fatty deposits on _: j

the laundry, which often makes it appear discolored ^ * -φί

as is sometimes the case with the application of the quaternary compounds. ^: - \ |

Although for the various components of the liquid detergents according to the invention, the sodium salts and Sodium compounds have been indicated because they are particularly satisfactory and commercially available the corresponding potassium compounds can also be used in their place, at least in part. Thus can Potassium surfactants, potassium builder salts, potassium bentonites and auxiliaries in the form of potassium salts are used, which are also among the alkali metal compounds the specified formulations fall.

Claims (2)

UEXKÜLL & STOLBERG european patent attorneys PATENTANWÄLTE BESELERSTRASSE 4 D-20OO HAMEURe 52 DH. J.-O. FRHR, from UEXKOLL OR. ULRICH GRAF STOLBERG DIPU-ING. JÜRGEN SUCHANTKE DIPL.-ING. ARNULF HUBER □ R. ALLARD of KAMEKE COLGATE-PALMOLIVE COMPANY Prio: December 24, 1984 Park Avenue US SN 685 346 New York, New York 10022 (22471 ue / LeC / do) V: St: A. December 1985 Heavy duty liquid detergent patent claims 1. Textile softener, liquid heavy-duty detergent with a density of 1.15 to 1.35 g / ml at room temperature, a pH of 9.5 to 11 and a viscosity of 1000 to 5000 that does not exceed 6000 when stored at room temperature for 30 days epa increases, characterized by a salary increase 5 to 15% alkali metal (linear or branched, higher) alkylbenzenesulfonate, its higher alkyl group comprises up to 16 carbon atoms, 1.5 to 5% alkali metal alkyl polyethoxy sulfate, its Alkyl group has 10 to 16 carbon atoms and the polyethoxy part of which has 2 to 11 ethylene oxide groups, 5 to 25% water-soluble builder salt, 5 to 20% of a swelling bentonite, 0.05 to 0.5% of a water-soluble polyacrylate with a MW in the range from 1000 to 5000 and 40 to 75% water. 2. Heavy duty detergent according to claim 1, the viscosity of which does not rise to more than 5000 eps when stored quietly for 30 days at room temperature, characterized by a content of 354Λ762 6 to 12% sodium linear, higher) alkyl benzene sulfonate, its higher alkyl group has 12 to 15 carbon atoms includes, 1.5 to 3% sodium alkyl polyethoxy sulfate, its Alkyl group from 12 to 16 carbon atoms and its Polyethoxy part has 2 to 7 ethylene oxide groups, 7 to 15% sodium tripolyphosphate, 2 to 7% sodium carbonate 8 to 15% finely divided bentonite, 0.1 to 0.3 % sodium polyacrylate with a MW of 1000 to 3000 and 50 to 70% water. Heavy-duty detergent according to Claim 2, characterized by a content of 8 to 10% sodium (linear, higher) alkyl benzene sulfonate having 12 to 13 carbon atoms in the alkyl group, 1.7 to 2.7% sodium alkyl polyethoxy sulfate, its Alkyl group has 12 to 15 carbon atoms and the polyethoxy part of which has 3 to 5 ethylene oxide groups, 9 to 13% sodium tripolyphosphate, 3 to 6% sodium carbonate, 10 to 14% finely divided bentonite with a particle size around of about 44 (No. 325 US sieve series) in a dry and unswollen state, 0.1 to 1.2% sodium polyacrylate with a MW from 1500 to 2500 and 55 to 70% water. Heavy duty detergent according to claim 3, characterized by a Content of about 9% sodium (linear) tridecylbenzenesulfonate, about 2% sodium alkyl polyethoxysulfonate, its alkyl group from 12 to 15 carbon atoms and its Polyethoxy part comprises about 3 ethylene oxide groups, about 11% sodium tripolyphosphate, about 4% sodium carbonate, about 12% bentonite, about 0.15% sodium polyacrylate, MW about 2000 and about 60% water. Heavy duty detergent according to Claim 4, characterized by a content of - about 0.2% sodium carboxymethyl cellulose and about 0.2% formalin, the water being desalinated est, the density is about 1.25 g / ml and the pH is about 10.5. Textile softening, liquid heavy-duty detergent composition with a density of 1.15 to 1.35 g / ml at room temperature, a pH of 9.5 to 11 and a viscosity of 1000 to 5000 * e & a, which does not exceed 6000 when stored quietly for 30 days at room temperature cps st igt, characterized by a content of 6.5 to 20% water-soluble, anionic sulfonated and / or sulfated surfactant,
5 to 25% builder salt,
5 to 20% swelling bentonite, 0.05 to 0.5% sodium polyacrylate with MW in the range 1000 to 5000 and
40 to 75% water.