JPH0692598B2 - Bentonite-containing fabric softening heavy liquid detergent - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a heavy liquid detergent composition for fabric softening. More specifically, it relates to a liquid detergent of that kind comprising the components of the synthetic organic detergents and builders described in aqueous media together with swellable bentonites and low molecular weight polyacrylates. The product of the present invention has an improved stable viscosity or consistency even after storage for 1 month,
It is an easily washable and good laundry detergent and fabric softener.

Prior Art: Heavy liquid detergents that are useful for machine washing of laundry are commercially available and have been described in various patents and literature. Bentonite has been included in granular detergent compositions as a fabric softener and is utilized as a thickener in aqueous compositions, which keeps insoluble particulate matter, such as abrasives, suspended in a liquid medium. Can help. In U.S. Pat. No. 4,469,605 (Lamatien Andran), bentonite was successfully used in the manufacture of what was then considered to be an acceptable stable heavy fabric softening liquid detergent, of which bentonite was a fabric softener. It was a chemical component. The detergent compositions described in that patent have stable and relatively constant viscosities on storage when made in laboratories and pilot plants, but often thicken on storage when made in production facilities. But here is what I was trying to do.

Means for Solving the Problems: According to the present invention, a density in the range of 1.15 to 1.35 g / ml at room temperature, a pH in the range of 9.5 to 11 and 1,000 to 5,000.
Heavy-duty liquid softeners for fabric softening with a viscosity in the range of centipoise and not increasing to more than 5,000 or 6,000 centipoise during static storage at room temperature for 30 days include higher alkyls of 10 to 16 carbon atoms. 5 to 15 which are things
% Straight or branched chain higher alkyl benzene sulfonic acid alkali metal salt, alkyl being 10 to 16 carbon atoms and polyethoxy being 2 to 11 ethylene oxide groups 1.5 to 5% Alkyl polyethoxy sulfate alkyl metal salt of 5 to 25% water-soluble builder salt, 5 to 20% swellable bentonite, 0.05 to 0.5
% Water-soluble polyacrylate having a molecular weight in the range of 1,000 to 5,000 (for example, sodium polyacrylate), and 40
Consists of ~ 75% water. The liquid detergents described are commercially acceptable heavy laundry detergents which satisfactorily clean laundry containing both oily and particulate soils and at the same time provide sufficient bentonite on such laundry. They can be deposited to soften them. The composition described may also be used for the pretreatment of heavily soiled areas such as collars and sleeves of items to be laundered, in which treatment is applied directly to the contaminated area with some rubbing. The presence of bentonite in a good liquid is believed to be useful in mechanically helping to loosen and / or remove soil.

Synthetic anionic organic detergent present in the liquid detergent of the present invention
The mixture may be a straight chain or branched (preferably straight chain) higher polymer.
Ruquilbenzene sulfonate and alkyl polyethoxy sulphate
It is a mixture with an acid salt. Other water-soluble linear high-grade al
Killbenzene sulfonate, such as potassium salt, and
In some cases ammonium salts and / or if appropriate
Alkanol ammonium salts also exist in the formulation of the present invention.
Yes, but sodium salts are highly preferred
It is also an alkyl polyethoxy sulphate detergent ingredient
It was discovered that the same was true. Alkylbenze
Sulfonate has 12 to 16 higher alkyls,
Preferably 12 to 15, more preferably 12 to 13,
Most preferably it is of 13 carbon atoms. Alkyl
Polyethoxy sulfate, which is also sulfated polyethoxy
Higher straight chain alcohol or higher aliphatic alcohol
And ethylene oxide or polyethylene glycol
It is also called the sulfated condensation product of
1 to 16, preferably 12 to 15, for example 13 carbons
Atomic, and 2 to 11 ethylene trees
Side groups, preferably 2 to 7, more preferably 3
From 5 to most preferably 3 or about 3 ethyles
It contains an oxide group. In the right environment
Are other anionic detergents such as fatty alcohol sulphates.
Acid salt, paraffin sulfonate, olephin sulfonic acid
Salt, monoglyceride sulfate, sarcosinate, sulfo
Succinates and similar functional detergents are for example sodium
As a salt, sometimes partially replacing the aforementioned synthetic organic detergents
Can exist, but usually exists
In addition to that type of detergent, if present
It Usually other detergents of that kind are sulphated or sulphonated.
Oxidation product (usually as a sodium salt), long chain
(8 to 20 carbon atoms) straight or aliphatic al
Including a kill group. Such other or supplemental anio
Non-ionic substances and amphoteric
Substances may also be present, eg shell chemical
Neo Doll sold by the company And they are
Condensation of Tylene Oxide with Higher Aliphatic Alcohol
A higher fat of about 12 to 13 carbon atoms.
Condensation of a group alcohol with about 6.5 moles of ethylene oxide
There is a combined product, Neodol 23-6.5. The above detergent
Examples of different detergents and types in the text Surface Active A
gents, Volume 2 (by Schwarz, Perry and Birch.
Interscience Public Shears, 1958) and one
A series of McCu-tcheon ’s Detergents and Emulsifiers
Found in an annual report, for example, published in 1969.
And their descriptions are referred to herein.
There is.

The builder salt combination of the present invention has been found to satisfactorily improve the washability of a mixture of synthetic anionic organic detergents, to produce the desired pH in liquid detergents and wash water, and for washing processes and softening. It is a mixture with detergent and bentonite in the chemical conversion process, but is a mixture with sodium tripolyphosphate. In some cases incompletely neutralized tripolyphosphate is also used, but it may be considered that the phosphate normally used is pentasodium tripolyphosphate Na ₅ P ₃ O ₁₀ . Of course, in some cases ion exchange in an aqueous medium may result in other salts other than sodium tripolyphosphate, such as when potassium salts of other substances are present, but for the purposes of this specification. For
It is believed that the tripolyphosphate salt used is sodium tripolyphosphate as the pentasodium salt, which is the substance normally loaded into a mixer to make the liquid detergent of the present invention.

Other preferred builder salts that may be used in place of or in addition to sodium tripolyphosphate and sodium carbonate include sodium and potassium citrate, and sodium nitrilotriacetate (NTA).
The corresponding potassium salts may also be used in the partial substitution of these other builder salts. Of course, various mixtures of the above water-soluble builder salts can be used. It has been discovered that the described tripolyphosphate-carbonate mixture is most preferred, although other builders and their mixtures are also operable. Further, other builders may be used as a supplement in addition to the above-mentioned proportions of the above-mentioned builders. Thus, other phosphates may be used, such as tetrasodium pyrophosphate or tetrapotassium pyrophosphate, sodium bicarbonate, sodium sesquicarbonate, sodium gluconate, borax, sodium silicate, and sodium sesquisilicate. Also useful are the polyacetal carboxylate builders described in U.S. Pat. No. 4,144,226 and other related Monsanto Company patents, which are available under the Builder U trademark. Among the water-insoluble builders that can be used are zeolites such as zeolite A, usually in the form of crystalline hydrates, although amorphous zeolites are also useful. One feature of the present invention is that sodium silicate is not required to make an effective heavy duty detergent-softener composition, therefore such silicates are usually omitted from the formulation of the present invention, which The undesirable property is therefore avoided. For example, silicates react with other components of liquid detergents such as zeolites, sodium carbonate, or other builders to form insoluble materials that tend to adhere to the laundry and thus adversely affect its desired light color. The tendency is avoided. The absence of silicates in the detergent medium prevents the formation of insoluble siliceous decomposition products of silicates, these products becoming visible in liquid detergents or on laundry. If deposited, they tend to adversely affect the appearance of liquid detergents and laundry.

The bentonite used is colloidal clay containing montmorillonite (aluminum silicate). The most useful type of bentonite in making the base beads of the present invention is that known as sodium montmorillonite (or Wyoming or Western bentonite), which is usually light to cream colored, or slightly tan hand. It is a powder that is invisible to the touch and can form a colloidal suspension with strong thixotropic properties in water. In many cases,
Potassium bentonite or mixed sodium-potassium bentonite may be used instead. In water, the swelling capacity of this type of clay is usually in the range of 3 to 15 or 20 ml / g, preferably 7 to 15 ml / g and its viscosity is 6 in water.
The% concentration is usually in the range of 3 to 30 centipoise, preferably 8 to 30 centipoise. A preferred swelling bentonite of this type is marketed by Benton Clay Company, a major clay supplier to the industry, under the trademark Mineral Colloids as industrial bentonite. These materials are the same as those previously sold under the Chixoriel trademark, but are selectively mined and beneficiated, the most useful being the mineral colloids, No. 101, etc. , Chixo Jewel No.
Equivalent to 1, 2, 3 and 4. These substances are from 8
PH in the range of 9.4 (6% concentration in water), 4% to 8%
Maximum free water content (before addition to the liquid detergent medium) and about 2.
It has a specific gravity of 6. For finely ground grades of these materials, at least about 85% pass 200 mesh of the American Sieve series. Preferably all bentonites are passed through a 200 mesh screen, most preferably all are about the same size as or just pass through a No. 325 screen, and therefore the equivalent diameter of bentonite. Can be considered to be less than 74 microns, and more preferably approximately 44 microns or less. A useful commercial source of finely divided bentonites of satisfactory color is the American Colloid Company, and for the available bentonites sold as AEG325 Bentonite, it is believed to be compatible with the mineral colloids and thixogel mentioned above. Although beneficiated Wyoming bentonite is preferred as a component of the liquid detergent composition of the present invention, other bentonites, including synthetic bentonites (made by sodium carbonate treatment from bentonites with exchangeable calcium and / or magnesium) Are also useful and are contemplated for inclusion in the compositions of the present invention. Representative chemical analyzes of some of the bentonites that are useful in making the liquid detergents of the present invention are: 64.8 to 73.0% SiO ₂ , 14 to 18% Al ₂ O ₃ , 1.6 to 2.7% M.
It is shown to contain gO, 1.3 to 3.1% CaO, 2.3 to 3.4% Fe ₂ O ₃ , 0.8 to 2.8% Na ₂ O and 0.4 to 7.0% K ₂ O.

The use of bentonite as a fabric softener in the liquid detergent composition of the present invention does not require the bentonite to be dried as in a spray dryer, thus immobilizing it by overdrying its component plates. The risk of losing the softening power of bentonite based is avoided. Also, it is not necessary to have the detergent composition of the present invention in a formulation that promotes rapid disintegration of the detergent beads in the wash water to release the bentonite particles, because in liquid detergents bentonite particles have more time to disintegrate. This is because they are not aggregated into a hard mass that requires

The polyacrylate used is a low molecular weight sodium polyacrylate whose molecular weight is usually about 1,000 to 5,000.
It ranges from 0, preferably from 1,000 to 3,000, most preferably from 1,500 to 2,500, for example about 2,000. Other polyacrylates, including other alkali metal polyacrylates, may sometimes replace some of the described sodium polyacrylates, but such replacements may be kept in small proportions when allowed. Preferably, preferably the polyacrylate used is sodium polyacrylate. Such materials are available from Arco Chemical Corporation under the name Arcospers. Sodium polyacrylate is available as a clear amber liquid or powder, is completely soluble in water, its solution has a solids content of about 25 to 40%, for example 30%, the pH of these solutions or The pH of a 30% aqueous solution of powder is about 7.0
It is in the range of 9.5. Of these products, the preferred ones are currently marketed by Arco Chemicals Corporation as Arcospars 104, 107, 107D, 109 and 149, among which Arcospars 107D, 100% solid powder,
Is highly preferred, provided that Arcospars 107, 30
% Aqueous solution may be used instead and there is little difference in the results. Both are sodium polyacrylates, liquid (107) from 8.5 at a concentration of 30% in water.
PH in the range of 9.5, powder (107D) has a pH of 7.0 to 8.0
Is in the range.

The only other necessary ingredient of the liquid detergent of the present invention is water. Usually, the hardness of such water is about 300 p.pm or less, preferably 150 p.pm or less as CaCO ₃ . 50 or 100
Although tap water of sub-ppm hardness is often almost satisfactory, it is often desirable to use deionized water. Although harder water can be used successfully in making the detergents of the present invention, soft water can adversely affect the appearance of liquid detergents or produce interfering substances that interfere with the deposition of laundry during washing. Less is.

Various auxiliaries, both aesthetic and functional, can be present in liquid detergents, for example brightening agents, perfumes and colorants. Fluorescent brighteners are trade name Chinopearl, eg 5BM
And known stilbene derivatives, including cotton and nylon brighteners. The perfumes used usually contain essential oils, esters, aldehydes and / or alcohols, all of which are known in the perfumery field. Colorants include various types of water dispersible pigments including dyes and ultramarine blue. Due to the lightening effect due to the presence of bentonite, the product color is often an attractive pastel shade. Titanium dioxide may be used to lighten or even whiten the color of the product. Inorganic filler salts such as sodium sulfate and sodium chloride may be present, anti-deposition agents such as sodium carboxymethyl cellulose, enzymes, bleach,
Fungicides, fungicides, defoamers such as silicones, antifouling agents such as copolyesters, preservatives such as formalin, foam stabilizers such as lauryl myristyldiethanolamide, and cosolvents such as ethanol. It is the same. Usually, the individual proportion of this type of auxiliaries is less than 3%,
Sometimes less than 1%, sometimes less than 0.5%,
However, fillers and solvents and additional detergents and builders are separate, for which the proportions can sometimes be as high as 10%. The total proportion of unspecified detergents and auxiliaries, including builders, should not exceed 20% of the product and is preferably
It is 10% or less, more preferably 5% or less. Of course, the auxiliaries used do not interfere with the washing and softening action of the liquid detergent and do not promote product instability on standing. Also, they do not cause the formation of disturbing deposits on the laundry.

The ratio of various components in the liquid detergent of the present invention is 5 to 15%,
Preferably 6 to 12%, more preferably 8 to 10%,
Most preferably about 9% sodium higher chain alkylbenzene sulfonate; 1.5 to 5%, preferably 1.5 to 3
%, More preferably 1.7 to 2.7%, most preferably about 2
% Sodium alkyl polyethoxy sulphate; 5 to 25%,
Preferably 9 to 22%, more preferably about 12 to 19%
Builder salt of 5 to 20%, preferably 8 to 15%, more preferably 10 to 14%, most preferably about 12% swellable bentonite; 0.05 to 0.5%, preferably 0.1 to 0.3%,
More preferably 0.12-0.18%, most preferably 0.15% or about 0.15% sodium polyacrylate and 40-75.
%, Preferably 50 to 70%, more preferably 55 to 70%
%, Most preferably about 60% water. For builder salts, when they are sodium tripolyphosphate and sodium carbonate, their proportion is usually 7
To 15%, preferably 9 to 13%, more preferably about 11
% Tripolyphosphate and 2 to 7%, preferably 3 to 6%, more preferably about 4% sodium carbonate, the ratio of tripolyphosphate to carbonate being in the range 2: 1 to 6: 1. It is in.

Liquid detergents can be made by proper mixing of the various ingredients thereof, preferably bentonite is added to most premixes of water together with tripolyphosphate, carbonate, CMC and anionic detergent. To be done. For example, polyphosphates and carbonates are mixed and dissolved with most of the water, usually in a finely divided, finely divided form that passes through a No. 160 sieve, after which the CMC and anionic detergent are mixed. The bentonite, polyacrylate and the rest of the formulation ingredients are then mixed in any suitable order. The reserved water portion is then added to the rest of the liquid detergent to dilute the thickened liquid to the desired apparent concentration.

Experience has shown that the desired percentage of water mixed at the end of the manufacturing process is usually 5 to 20% of the final liquid detergent, eg about 10% thereof. During the mixing of the various components with the aqueous medium, and especially when the bentonite is added and the remaining water is mixed, it is important to keep the mixture in motion, such as by continuing to mix or stir it. Preferably, the mixer is never stopped and the process is continuous, usually requiring about 3 to 30 minutes per batch. The water may be warmed to facilitate the dissolution of various product ingredients and to promote the dispersion of bentonite, but this is not necessary, and room temperature water, for example temperatures in the range 15 ° C to 30 ° C. For example, water at 20 ° C to 25 ° C may be used.

The viscosity of the liquid detergent of the present invention immediately after the completion of the manufacturing process is usually about
It is in the range of 1,000 to 2,000 centipoise, for example about 1,
It is 500 centipoise. Liquid detergents are considered to be packaged in relatively narrow-mouthed glass or plastic bottles and then dispensed, which must flow before and after normal aging. When polyacrylates are omitted from the formulation, commercially produced liquid detergents are initially more viscous and become more viscous on standing, so after about 1 month at room temperature, their viscosities range from 3,000 centipoise to 1
It will increase to over 8,000 centipoise. 18,000
In centipoise, the liquid detergent is too viscous to satisfactorily flow out, requiring the consumer to shake or stir to reduce the viscosity sufficiently to allow it to flow out of the bottle. Needless to say, such thickening properties are undesirable. The preferred viscosity of the liquid detergent of the present invention is about 4,000 ±
It was found to be 1,000 centipoise, and viscosities similar to these are consumer preferred viscosities. Using the polyacrylate component and formulation of the present invention, the viscosity increased to about 4,000 centipoises after about 1 month of storage (4,050 centipoises after 28 days), as demonstrated in Example 1, and after further storage significantly It is found to not increase the viscosity. The stated viscosity is 2,000
For viscosities below centipoise, use No.2 spindle,
N for viscosities in the range of 2,000 to 9,000 centipoise
o.3 spindles, and for viscosities greater than 9,000 centipoise, using a No. 4 spindle, are measured by a Brutsk Field LVT viscometer. All viscosities are 12r
Measured at pm and 25 ° C.

The following examples illustrate, but do not limit, the invention. In this specification, including working examples and claims, all parts are by weight and all temperatures are degrees Celsius, unless otherwise stated.

Example 1. Component % Linear tridecylbenzenesulfone 8.8 Sodium acid alkyl polyethoxy sodium sulfate 2.2 um (alkyl = linear alkyl having 12 to 15 carbon atoms; polyethoxy = 3 ethoxy groups) tripolyphosphate penta Sodium 11.0 Sodium carbonate (anhydrous) 4.0 Sodium carboxymethyl 0.2 Cellulose sodium polyacrylate 0.15 (Molecular weight = 2,000) Titanium dioxide 0.5 Formalin 0.2 Bentonite (325 mesh, 12.0 American colloid Co.325AEG) Fluorescent brightener (Tinopearl LMS-0.3) X, [Ciba Geigy]) Fragrance 0.4 Dye (CI Acid Blue 0.0045 9 / CI 42090) Pigment (CI Pigment Blue 0.04 29 / CI 77007) Water 60.2055 100.0 Approximately 84% of the amount of water is equipped with heating and cooling means. Addition to a suitable mixer such as a vertical cylindrical tank connected to a discharge pump , Polyphosphate and carbonate (particle size passing through No. 160 sieve) were added with stirring (by Lightnin type mixer), followed by CMC, then anionic detergent. Mix and then mix the other ingredients in the proper order. The rest of the water is added, the mixture is diluted, the perfume is then added with stirring, and the product can easily be pumped out of the mixer and placed in a narrow jar for end use, which is dispensed. Useful as a container for During the mixing operation, it takes a total of about 9 minutes, but the added material and final product are at a temperature of about 20 ° C. In some cases, to facilitate rapid dissolution and quick dispensing of ingredients,
The temperature of the water and the other ingredients loaded will be about the final product temperature.
You can raise it from 40 ° C to 50 ° C, just like 30 ° C to 40 ° C,
In that case, the mixing time is reduced to about 5 or 6 minutes.

The resulting liquid detergent (room temperature) has a viscosity of about 1,550 centipoise and satisfactorily flows out of a plastic detergent bottle with a discharge opening of about 2.5 cm. It has a pH of about 10.5. This liquid detergent is used for laundering mixed loads of contaminated laundry, which includes swabs contaminated with cotton and polyester / cotton particulate and sebum stains. Add liquid detergent to a standard washing machine tub and use about half a cup of liquid detergent for each wash. (The concentration of liquid detergent in washing water is about 0.18%). The temperature of the wash water is 21 ° C (to test the product's "cold" water washability) and the water is CaCO ₃
As a mixed calcium / magnesium hardness of about 150 ppm. After washing the laundry and the test swat, they are either "dry-place dried" or machine dried (conventional laundry dryer).

The same procedure as above is repeated for the control detergent formulation, but omitting the sodium polyacrylate and replacing it with water.

Both the experimental composition (containing sodium polyacrylate) and the control composition are excellent fabric softening detergents, however, the experimental product has one important property, a satisfactory viscosity on storage. Much better in maintenance. For example, after 5 days, the viscosity of the experimental product is 2,580.
Centipoise, while the control has a viscosity of 9,400
Centipoise, after 14 days the viscosities are 3,400 and 13,500 centipoise, respectively, after 21 days are 3,500 and 14,500 centipoise, respectively, and after 28 days, 4,050 and 18,500 centipoise, respectively. At 4,050 centipoise, the product can still be poured from the bottle, but at 18,500 centipoise, it cannot be poured and must be shaken or stirred to disperse. After 28 days of manufacture, the viscosity of the experimental formulation does not increase significantly, and the viscosity of the control standard is not commercially viable above 18,000 centipoise, so there is no point in increasing it.

It is clear from this experiment that the presence of very small amounts of sodium polyacrylate helps stabilize the viscosity of the described detergent compositions on storage, an effect not previously recognized in the art. is there.

This experimental liquid detergent has an attractive light blue homogeneous appearance and does not settle in layers of different substances on storage.

In addition to being useful as a mechanical laundry detergent, the products of the present invention can be used as a liquid for hand washing of laundry and pretreatment of heavily contaminated areas of laundry.
In handwashing of laundry, the laundry solution has a bottom drainage outlet so that it passes through the laundry in order to promote maximum deposition of bentonite on the laundry and thereby improve its softening effect. It can be drained through the washing tub and then rinsed in the usual manner. When used as a pretreatment for contaminated areas of laundry, it is preferable to apply the liquid detergent as it is (although a diluting liquid can be used) to the contaminated area and rub into it without diluting it. During its application and rubbing, the bentonites help the detergent to loosen and remove the contaminants whether they are oily or granular, and at the same time some of the bentonites are fibers of the laundry material. To help soften the laundry material at that location. Such softening of the material contributes to reducing contamination and reducing subsequent contamination retention, especially when the contaminated area is a cuff or collar of a shirt.

Example 2. A liquid detergent similar to that of Example 1 is prepared, except that 8.8% linear tridecylbenzene sulfonate is replaced with 9% linear dodecylbenzene sulfonate, 12 to 13 alkyls. 2% of sodium alkylpolyethoxysulfate having carbon atoms and polyethoxy having an average of 6.5 ethoxy groups was used instead of 2.2% instead of Arcospers 107D (used in Example 1). 0.2% Arcospars 107 (solids containing basis), 11% STPP, 6% sodium carbonate, 15% bentonite (mineral colloid)
101), using the above-mentioned auxiliaries and 55.7% CaCO ₃ hardness 100 ppm tap water. The additional sodium carbonate improves the miscibility of the various components during the manufacturing process and the detergent replacement does not significantly adversely affect the product properties. This product is made essentially the same as above.

This liquid detergent is a stable pourable liquid having the desired detergency and softening properties described for the liquid detergent of Example 1, whether used for machine washing, hand washing or pretreatment of laundry. is there. Its viscosity does not exceed 5,000 centipoise after storage for 1 month at room temperature.

Similarly, 3% sodium lauryl alcohol sulfate, 2
By adding% neodol and 0.5% silicone antifoam oil to the ingredients of Example 1 (replacing water).
Upon incorporation, an acceptable liquid detergent is created. Also when used to replace sodium or potassium citrate with sodium carbonate (or when partial substitution, eg 30% substitution, is carried out with such citrate or trisodium nitriloacetate).
It also results in a useful liquid detergent, with desirable properties similar to those of the aforementioned compositions.

Example 3. A liquid detergent similar to Example 1 is prepared, but only 2% sodium carbonate is used in the formulation and the water content is increased accordingly. Despite the reduced content of sodium carbonate, this mixture is still processable to a final product with the desired properties, which is useful as a heavy laundry detergent for washing and softening cotton and synthetic materials, and It is useful as a pretreatment for such laundry. When 0.5% sodium carboxymethylcellulose is added to the formulation instead of part of the water, the improved whiteness of the laundry is achieved without substantially losing softening power due to its CMC anti-redeposition activity. Can be obtained.

In another variation of the invention, a useful wash when the percentages of the various ingredients of the liquid detergent of Example 1 vary by ± 10% or ± 20% without departing from the ranges given herein. A stable, pourable liquid detergent with a softening effect results. 10% of some products of this type
As much zeolite A or up to 4% Na ₂ O: SiO
_It may be desirable to include sodium silicate in a ₂ molar ratio of about 1: 2.4, except that silicates are often avoided and, if zeolites are present, zeolite-silicate aggregates or reaction products. The silicates are usually omitted to avoid the deposition of

As can be seen from the above description and working examples, the fabric softening heavy liquid detergents of the present invention are stable, homogeneous, attractive and mechanical. Despite the presence of a substantial proportion of gelling agents (bentonites) in the liquid medium, they do not form disturbing gels and remain pourable during storage. Bentonite, which has been stored for a long time and during which the suspended bentonite is brought into intimate contact with the surfactant and the inorganic salt builder in an aqueous medium, does not cause disturbing agglomeration and does not give rise to laundry. Its softening effect is not destroyed. By using the above-mentioned detergents and builders in an aqueous medium in which sodium polyacrylate is also present, it is possible to pour it in liquid form, despite having a substantial proportion of swelling type bentonite. A liquid detergent is produced that retains its physical and chemical properties, and by these properties deposits bentonite on the laundry and acts as a lubricant for its fibers, whereby the laundry is Promote the softening of. Also,
As mentioned above, the use of a liquid medium avoids the possibility of bentonite undergoing deactivation by overheating, such as in a spray drying tower.

The liquid detergent of the present invention is not only useful as a product for machine washing and hand washing of laundry, but also good for pretreatment of soiled portions of laundry, in which the treatment of bentonite is included. Helps remove dirt and softens contaminated areas (and the product may also be subsequently used for laundering purposes). Thus, from the above description of the properties and advantages of the detergents of the present invention, it can be seen that it represents a significant advance in the field of detergent compositions because it utilizes superior anionic synthetic organic detergents and Non-gelling, so as to achieve both cleaning and softening of the laundry without the need to incorporate chemically poorly reactive cationic substances such as quaternary ammonium salts with such anionic detergents. This is because it enables convenient use of the liquid detergent. Moreover, the bentonites used are ecologically not as harmful as quaternary ammonium salts and, as is sometimes the case with quaternary salts, can often tarnish laundry. No disturbing fatty deposits accumulate on the laundry.

Although the sodium salts and sodium compounds of the various components of the liquid detergents of the present invention have been described as they are particularly preferred and commercially available, it is possible to substitute the corresponding potassium compounds with them, at least in part. Yes, and also within the invention. For example, potassium detergents, potassium builder salts, potassium bentonite and potassium auxiliary salts can be used and are considered to be included with the sodium salt as an "alkali metal" in a given formulation.

Although the present invention has been described with respect to various embodiments and working examples, it is not limited thereto, as persons of ordinary skill in the art, with reference to the present specification, can make alternatives and equivalents without departing from the invention. Because it is clear that can be used.

Claims (6)

[Claims] 1. A density in the range of 1.15 to 1.35 g / ml at room temperature, a pH in the range of 9.5 to 11 and a range of 1,000 to 5,000 centipoise at room temperature for 6 days when stored statically for 6,00.
In a fabric softening heavy liquid detergent having a viscosity that does not increase above 0 centipoise, a higher or lower alkyl is a straight-chain or branched-chain higher alkylbenzene sulfonate having an alkali metal salt of 10 to 16 carbon atoms. %, Alkyl is 10
~ 16 carbon atoms, polyethoxy 2-11
1.5 to 5% of alkyl polyethoxysulfate alkali metal salt which is one of ethylene oxide group, 5 to 25% of water-soluble builder salt, 5 to 20% of swelling bentonite, 1,00
Water-soluble polyacrylates of molecular weight in the range of 0-5,000.
A fabric softening heavy liquid detergent consisting of 05-0.5% and 40-75% of water. 2. A straight-chain higher alkylbenzene sodium sulfonate having a higher alkyl of 12 to 15 carbon atoms, whose viscosity does not increase to more than 5,000 centipoise during static storage at room temperature for 30 days, and is 6 to 12%. , Alkyl is
Having 12 to 16 carbon atoms and having a polyethoxy of 2
1.5 to 3% of sodium alkyl polyethoxy sulphate, which is one of 7 ethylene oxide groups, 7 to 15% of sodium tripolyphosphate, 2 to 7% of sodium carbonate, 8 to 15% of finely divided bentonite, molecular weight Is 1,000 to 3,0
0.1-0.3 of sodium polyacrylate in the range of 00
%, And 50 to 70% of water, Claim 1
Heavy liquid detergent according to the item. 3. A straight-chain higher alkylbenzene sulfonate having 8 to 10 carbon atoms in the alkyl group, which has 8 to 13 carbon atoms.
%, Alkyl is from 12 to 15 carbon atoms and polyethoxy is from 3 to 5 ethylene oxide groups 1.7 to 2.7% of sodium alkylpolyethoxysulfate, 9 to 13% of sodium tripolyphosphate, carbonic acid 3 of sodium
-6%, 10-14% of finely divided bentonite which is dry and non-swollen and has a particle size of almost No. 325 and is of the US sieve series,
The heavy-duty liquid detergent according to claim 2, comprising 0.12-0.18% of sodium polyacrylate having a molecular weight in the range of 1,500-25,000 and 55-70% of water. 4. Sodium alkyl polyethoxy sulphate wherein about 9% of the linear sodium tridecylbenzene sulphonate, the alkyl is of 12 to 15 carbon atoms and the polyethoxy is of about 3 ethylene oxide groups. 2%, sodium tripolyphosphate 11%, sodium carbonate 4%, bentonite 12%, molecular weight 2,000
About 0.15% of sodium polyacrylate and about 60% of water
%, The heavy liquid detergent of claim 3. 5. A density in the range of 1.15 to 1.35 g / ml at room temperature, a pH in the range of 9.5 to 11 and a range of 1,000 to 5,000 centipoise at room temperature for 30 days stationary storage of 6,00.
In a fabric softening heavy liquid detergent having a viscosity that does not increase above 0 centipoise, a higher or lower alkyl is a straight-chain or branched-chain higher alkylbenzene sulfonate having an alkali metal salt of 10 to 16 carbon atoms. %, Alkyl is 10
~ 16 carbon atoms, polyethoxy 2-11
1.5 to 5% of alkyl polyethoxysulfate alkali metal salt which is one of ethylene oxide group, 5 to 25% of water-soluble builder salt, 5 to 20% of swelling bentonite, 1,00
Water-soluble polyacrylates of molecular weight in the range of 0-5,000.
A fabric softening heavy liquid detergent consisting of 05 to 0.5%, sodium carboxymethylcellulose about 0.2%, formalin about 0.2% and water 40 to 75%. 6. When stored at room temperature for 30 days at room temperature, having a density in the range of 1.15 to 1.35 g / ml, a pH in the range of 9.5 to 11, and a range of 1,000 to 5,000 centipoise.
In a fabric softening heavy liquid detergent composition having a viscosity that does not increase to more than 6,000 centipoise, 6.5 to 20% of anionic sulfonated type and / or sulfated type water-soluble synthetic organic detergent, the detergent thereof 5-25% of water-soluble builder salt for use, 5-20% of swelling bentonite, sodium polyacrylate with molecular weight in the range of 1,000-5,000
A fabric softening heavy liquid detergent composition comprising 0.05 to 0.5% and water 40 to 75%.